fix(_Layout): sanitzer entfernt, um Json-Deserilisationsfehler zu vermeiden.

- Gebunden mit Modell.

EnvelopeGenerator.Application/Configurations/AuthenticatorParams.cs

@@ -0,0 +1,19 @@
+namespace EnvelopeGenerator.Application.Configurations
+{
+    public class AuthenticatorParams
+    {
+        public string CharPool { get; init; } = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890123456789012345678901234567890123456789";
+
+        //TODO: Increase the DefaultTotpSecretKeyLength (e.g. to 32) but make sure that the QR code is generated correctly and can be scanned by the authenticator.
+        public int DefaultTotpSecretKeyLength { get; init; } = 20;
+
+        public string TotpIssuer { get; init; } = "signFlow";
+
+        /// <summary>
+        /// 0 is user email, 1 is secret key and 2 is issuer.
+        /// </summary>
+        public string TotpUrlFormat { get; init; } = "otpauth://totp/{0}?secret={1}&issuer={2}";
+
+        public int TotpQRPixelsPerModule { get; init; } = 20;
+    }
+}

EnvelopeGenerator.Application/Configurations/CodeGeneratorConfig.cs

@@ -1,7 +0,0 @@
-namespace EnvelopeGenerator.Application.Configurations
-{
-    public class CodeGeneratorConfig
-    {
-        public string CharPool { get; init; } = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890123456789012345678901234567890123456789";
-    }
-}

EnvelopeGenerator.Application/Configurations/DispatcherConfig.cs

@@ -1,13 +0,0 @@
-namespace EnvelopeGenerator.Application.Configurations
-{
-    public class DispatcherConfig
-    {
-        public int SendingProfile { get; init; } = 1;
-
-        public string AddedWho { get; init; } = "DDEnvelopGenerator";
-
-        public int ReminderTypeId { get; init; } = 202377;
-
-        public string EmailAttmt1 { get; init; } = string.Empty;
-    }
-}

EnvelopeGenerator.Application/Configurations/DispatcherParams.cs

@@ -0,0 +1,12 @@
+namespace EnvelopeGenerator.Application.Configurations;
+
+public class DispatcherParams
+{
+    public int SendingProfile { get; init; } = 1;
+
+    public string AddedWho { get; init; } = "DDEnvelopGenerator";
+
+    public int ReminderTypeId { get; init; } = 202377;
+
+    public string EmailAttmt1 { get; init; } = string.Empty;
+}

EnvelopeGenerator.Application/Configurations/EnvelopeReceiverCacheParams.cs

@@ -1,19 +0,0 @@
-namespace EnvelopeGenerator.Application.Configurations
-{
-    public class EnvelopeReceiverCacheParams
-    {
-        /// <summary>
-        /// Gets the cache key format for SMS codes.
-        /// The placeholder {0} represents the envelopeReceiverId.
-        /// </summary>
-        public string CodeCacheKeyFormat { get; init; } = "sms-code-{0}";
-
-        /// <summary>
-        /// Gets the cache expiration key format for SMS codes.
-        /// The placeholder {0} represents the envelopeReceiverId.
-        /// </summary>
-        public string CodeExpirationCacheKeyFormat { get; init; } = "sms-code-expiration-{0}";
-
-        public TimeSpan CodeCacheValidityPeriod { get; init; } = new(0, 5, 0);
-    }
-}

EnvelopeGenerator.Application/Configurations/GtxMessaging/SmsParams.cs

@@ -1,25 +0,0 @@
-using DigitalData.Core.Abstractions.Client;
-using Microsoft.Extensions.Caching.Distributed;
-
-namespace EnvelopeGenerator.Application.Configurations.GtxMessaging
-{
-    /// <summary>
-    /// https://www.gtx-messaging.com/en/api-docs/sms-rest-api/
-    /// </summary>
-    public class SmsParams : IHttpClientOptions
-    {
-        public required string Uri { get; init; }
-
-        public string? Path { get; init; }
-
-        public Dictionary<string, object>? Headers { get; init; }
-
-        public Dictionary<string, object?>? QueryParams { get; init; }
-
-        public string RecipientQueryParamName { get; init; } = "to";
-
-        public string MessageQueryParamName { get; init; } = "text";
-
-        public int CodeLength { get; init; } = 5;
-    }
-}

EnvelopeGenerator.Application/Configurations/GtxMessagingParams.cs

@@ -0,0 +1,20 @@
+using DigitalData.Core.Abstractions.Client;
+namespace EnvelopeGenerator.Application.Configurations;
+
+/// <summary>
+/// https://www.gtx-messaging.com/en/api-docs/sms-rest-api/
+/// </summary>
+public class GtxMessagingParams : IHttpClientOptions
+{
+    public required string Uri { get; init; }
+
+    public string? Path { get; init; }
+
+    public Dictionary<string, object>? Headers { get; init; }
+
+    public Dictionary<string, object?>? QueryParams { get; init; }
+
+    public string RecipientQueryParamName { get; init; } = "to";
+
+    public string MessageQueryParamName { get; init; } = "text";
+}

EnvelopeGenerator.Application/Configurations/MailConfig.cs

@@ -1,7 +0,0 @@
-namespace EnvelopeGenerator.Application.Configurations
-{
-    public class MailConfig
-    {
-        public required Dictionary<string, string> Placeholders { get; init; }
-    }
-}

EnvelopeGenerator.Application/Configurations/MailParams.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.Application.Configurations;
+
+public class MailParams
+{
+    public required Dictionary<string, string> Placeholders { get; init; }
+}

EnvelopeGenerator.Application/Configurations/TotpSmsParams.cs

@@ -0,0 +1,49 @@
+using OtpNet;
+using System.Globalization;
+
+namespace EnvelopeGenerator.Application.Configurations
+{
+    public class TotpSmsParams
+    {
+        /// <summary>
+        /// The unit is second.
+        /// </summary>
+        public int TotpStep { get; init; } = 90;
+
+        public string Format { get; init; } = "Ihr 2FA-Passwort lautet {0}. Gültig bis {1}";
+        
+        public ExpirationHandler Expiration { get; init; } = new();
+
+        public VerificationWindow? TotpVerificationWindow { get; private init; } = VerificationWindow.RfcSpecifiedNetworkDelay;
+
+        private IEnumerable<int>? _tvwParams;
+
+        public IEnumerable<int>? TotpVerificationWindowParams
+        {
+            get => _tvwParams;
+            init
+            {
+                _tvwParams = value;
+                if(_tvwParams is not null)
+                    TotpVerificationWindow = new(previous: _tvwParams.ElementAtOrDefault(0), future: _tvwParams.ElementAtOrDefault(0));
+            }
+        }
+
+        public class ExpirationHandler
+        {
+            public string CacheKeyFormat { get; init; } = "e{0}_r{1}_sms_code_expiration";
+
+            public string Format { get; init; } = "HH:mm:ss";
+
+            public string CultureName
+            {
+                get => _cultureInfo.Name;
+                init => _cultureInfo = new(value);
+            }
+
+            private CultureInfo _cultureInfo = new("de-DE");
+
+            public CultureInfo CultureInfo => _cultureInfo;
+        }
+    }
+}

EnvelopeGenerator.Application/Contracts/IAuthenticator.cs

@@ -0,0 +1,19 @@
+using OtpNet;
+
+namespace EnvelopeGenerator.Application.Contracts
+{
+    public interface IAuthenticator
+    {
+        string GenerateCode(int length);
+
+        string GenerateTotpSecretKey(int? length = null);
+
+        byte[] GenerateTotpQrCode(string userEmail, string secretKey, string? issuer = null, string? totpUrlFormat = null, int? pixelsPerModule = null);
+
+        byte[] GenerateTotpQrCode(string userEmail, int? length = null, string? issuer = null, string? totpUrlFormat = null, int? pixelsPerModule = null);
+
+        string GenerateTotp(string secretKey, int step = 30);
+
+        bool VerifyTotp(string totpCode, string secretKey, int step = 30, VerificationWindow? window = null);
+    }
+}

EnvelopeGenerator.Application/Contracts/ICodeGenerator.cs

@@ -1,7 +0,0 @@
-namespace EnvelopeGenerator.Application.Contracts
-{
-    public interface ICodeGenerator
-    {
-        string GenerateCode(int length);
-    }
-}

EnvelopeGenerator.Application/Contracts/IEnvelopeMailService.cs

@@ -8,10 +8,12 @@ namespace EnvelopeGenerator.Application.Contracts
 {
     public interface IEnvelopeMailService : IEmailOutService
     {
-        Task<DataResult<int>> SendAsync(EnvelopeReceiverDto envelopeReceiverDto, Constants.EmailTemplateType tempType);
+        Task<DataResult<int>> SendAsync(EnvelopeReceiverDto envelopeReceiverDto, Constants.EmailTemplateType tempType, Dictionary<string, object>? optionalPlaceholders = null);
 
-        Task<DataResult<int>> SendAsync(EnvelopeReceiverReadOnlyDto dto);
+        Task<DataResult<int>> SendAsync(EnvelopeReceiverReadOnlyDto dto, Dictionary<string, object>? optionalPlaceholders = null);
 
         Task<DataResult<int>> SendAccessCodeAsync(EnvelopeReceiverDto envelopeReceiverDto);
+
+        Task<DataResult<int>> SendTFAQrCodeAsync(EnvelopeReceiverDto envelopeReceiverDto);
     }
 }

EnvelopeGenerator.Application/Contracts/IEnvelopeReceiverCache.cs

@@ -1,17 +0,0 @@
-namespace EnvelopeGenerator.Application.Contracts
-{
-    public interface IEnvelopeReceiverCache
-    {
-        Task<string?> GetSmsCodeAsync(string envelopeReceiverId);
-
-        /// <summary>
-        /// Asynchronously stores an SMS verification code in the cache and returns the expiration date of the code.
-        /// </summary>
-        /// <param name="envelopeReceiverId">The unique identifier for the recipient of the envelope to associate with the SMS code.</param>
-        /// <param name="code">The SMS verification code to be stored.</param>
-        /// <returns>A task that represents the asynchronous operation. The task result contains the expiration date and time of the stored SMS code.</returns>
-        Task<DateTime> SetSmsCodeAsync(string envelopeReceiverId, string code);
-
-        Task<DateTime?> GetSmsCodeExpirationAsync(string envelopeReceiverId);
-    }
-}

EnvelopeGenerator.Application/Contracts/IEnvelopeReceiverService.cs

@@ -9,17 +9,17 @@ namespace EnvelopeGenerator.Application.Contracts
     public interface IEnvelopeReceiverService : IBasicCRUDService<EnvelopeReceiverDto, EnvelopeReceiver, (int Envelope, int Receiver)>
     {
 
-        Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false);
+        Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false, bool readOnly = true);
 
         Task<DataResult<IEnumerable<string?>>> ReadAccessCodeByUuidAsync(string uuid, bool withEnvelope = false, bool withReceiver = true);
 
-        Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true);
+        Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true, bool readOnly = true);
 
-        Task<DataResult<EnvelopeReceiverDto>> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true);
+        Task<DataResult<EnvelopeReceiverDto>> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true);
 
-        Task<DataResult<EnvelopeReceiverSecretDto>> ReadWithSecretByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true);
+        Task<DataResult<EnvelopeReceiverSecretDto>> ReadWithSecretByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true);
 
-        Task<DataResult<EnvelopeReceiverDto>> ReadByEnvelopeReceiverIdAsync(string envelopeReceiverId, bool withEnvelope = true, bool withReceiver = true);
+        Task<DataResult<EnvelopeReceiverDto>> ReadByEnvelopeReceiverIdAsync(string envelopeReceiverId, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true);
 
         Task<DataResult<string>> ReadAccessCodeByIdAsync(int envelopeId, int receiverId);
         

EnvelopeGenerator.Application/Contracts/IEnvelopeSmsHandler.cs

@@ -0,0 +1,17 @@
+using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
+using EnvelopeGenerator.Application.DTOs.Messaging;
+
+namespace EnvelopeGenerator.Application.Contracts;
+
+public interface IEnvelopeSmsHandler
+{
+    /// <summary>
+    /// If expiration is passed then, sends sms and returns smsResponse and up-to-date expiration; otherwise send expiration.
+    /// </summary>
+    /// <param name="er_secret"></param>
+    /// <param name="cToken"></param>
+    /// <returns></returns>
+    Task<(SmsResponse? SmsResponse, DateTime Expiration)> SendTotpAsync(EnvelopeReceiverSecretDto er_secret, CancellationToken cToken = default);
+
+    bool VerifyTotp(string totpCode, string secretKey);
+}

EnvelopeGenerator.Application/Contracts/IJWTService.cs

@@ -1,24 +0,0 @@
-using Microsoft.IdentityModel.Tokens;
-using System.IdentityModel.Tokens.Jwt;
-using System.Security.Claims;
-using System.Security.Cryptography;
-
-namespace EnvelopeGenerator.Application.Contracts
-{
-    public interface IJWTService<TClaimValue>
-    {
-        public static SymmetricSecurityKey GenerateSecurityKey(int byteSize = 32)
-        {
-            using var rng = RandomNumberGenerator.Create();
-            var randomBytes = new byte[byteSize];
-            rng.GetBytes(randomBytes);
-            var securityKey = new SymmetricSecurityKey(randomBytes);
-
-            return securityKey;
-        }
-
-        string GenerateToken(TClaimValue claimValue);
-
-        JwtSecurityToken? ReadSecurityToken(string token);
-    }
-}

EnvelopeGenerator.Application/Contracts/IMessagingService.cs

@@ -1,13 +0,0 @@
-using EnvelopeGenerator.Application.DTOs.Messaging;
-
-namespace EnvelopeGenerator.Application.Contracts
-{
-    public interface IMessagingService
-    {
-        string ServiceProvider { get; }
-
-        Task<SmsResponse> SendSmsAsync(string recipient, string message);
-
-        Task<SmsResponse> SendSmsCodeAsync(string recipient, string envelopeReceiverId);
-    }
-}

EnvelopeGenerator.Application/Contracts/IReceiverService.cs

@@ -1,4 +1,5 @@
-using DigitalData.Core.Abstractions.Application;
+using DigitalData.Core.Abstractions;
+using DigitalData.Core.Abstractions.Application;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using EnvelopeGenerator.Domain.Entities;
@@ -7,8 +8,10 @@ namespace EnvelopeGenerator.Application.Contracts
 {
     public interface IReceiverService : ICRUDService<ReceiverCreateDto, ReceiverReadDto, ReceiverUpdateDto, Receiver, int>
     {
-        public Task<DataResult<ReceiverReadDto>> ReadByAsync(string? emailAddress = null, string? signature = null);
+        Task<DataResult<ReceiverReadDto>> ReadByAsync(string? emailAddress = null, string? signature = null);
 
-        public Task<Result> DeleteByAsync(string? emailAddress = null, string? signature = null);
+        Task<Result> DeleteByAsync(string? emailAddress = null, string? signature = null);
+
+        Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto) where TUpdateDto : IUnique<int>;
     }
 }

EnvelopeGenerator.Application/Contracts/ISmsSender.cs

@@ -0,0 +1,11 @@
+using EnvelopeGenerator.Application.DTOs.Messaging;
+
+namespace EnvelopeGenerator.Application.Contracts;
+
+//TODO: move to DigitalData.Core
+public interface ISmsSender
+{
+    string ServiceProvider { get; }
+
+    Task<SmsResponse> SendSmsAsync(string recipient, string message);
+}

EnvelopeGenerator.Application/DTOs/EnvelopeDto.cs

@@ -51,7 +51,9 @@ namespace EnvelopeGenerator.Application.DTOs
 
 		public int? ExpiresWarningWhenDays { get; set; }
 
-		public bool DmzMoved { get; set; }
+        public bool TFAEnabled { get; init; }
+
+        public bool DmzMoved { get; set; }
 		public UserReadDto? User { get; set; }
 		public EnvelopeType? EnvelopeType { get; set; }
 

EnvelopeGenerator.Application/DTOs/Messaging/GtxMessagingResponse.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Domain.HttpResponse
+namespace EnvelopeGenerator.Application.DTOs.Messaging
 {
     public class GtxMessagingResponse : Dictionary<string, object?> { }
 }

EnvelopeGenerator.Application/DTOs/Messaging/SmsResponse.cs

@@ -4,15 +4,7 @@
     {
         public required bool Ok { get; init; }
 
-        public DateTime? Expiration { get; set; }
-
-        public DateTime? AllowedAt { get; set; }
-
-        public TimeSpan AllowedAfter => Allowed ? TimeSpan.Zero : AllowedAt!.Value - DateTime.Now;
-
-        public bool Allowed => AllowedAt is null || DateTime.Now >= AllowedAt;
-
-        public bool Error => !Ok && Allowed;
+        public bool Failed => !Ok;
 
         public dynamic? Errors { get; init; }
     }

EnvelopeGenerator.Application/DTOs/Receiver/ReceiverCreateDto.cs

@@ -4,7 +4,7 @@ using System.Text;
 
 namespace EnvelopeGenerator.Application.DTOs.Receiver
 {
-    public record ReceiverCreateDto([EmailAddress] string EmailAddress)
+    public record ReceiverCreateDto([EmailAddress] string EmailAddress, string? TotpSecretkey = null)
     {
         public string Signature => sha256HexOfMail.Value;
 

EnvelopeGenerator.Application/DTOs/Receiver/ReceiverReadDto.cs

@@ -1,19 +1,24 @@
-using DigitalData.Core.DTO;
+using DigitalData.Core.Abstractions;
+using DigitalData.Core.DTO;
+using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
 using System.Text.Json.Serialization;
 
-namespace EnvelopeGenerator.Application.DTOs.Receiver
-{
-    public record ReceiverReadDto(
-        int Id,
-        string EmailAddress,
-        string Signature,
-        DateTime AddedWhen       
-        ) : BaseDTO<int>(Id)
-    {
-        [JsonIgnore]
-        public IEnumerable<EnvelopeReceiverBasicDto>? EnvelopeReceivers { get; init; }
+namespace EnvelopeGenerator.Application.DTOs.Receiver;
 
-        public string? LastUsedName => EnvelopeReceivers?.LastOrDefault()?.Name;
-    };
-}
+public record ReceiverReadDto(
+    int Id,
+    string EmailAddress,
+    string Signature,
+    DateTime AddedWhen
+    ) : BaseDTO<int>(Id), IUnique<int>
+{
+    [JsonIgnore]
+    public IEnumerable<EnvelopeReceiverBasicDto>? EnvelopeReceivers { get; init; }
+
+    public string? LastUsedName => EnvelopeReceivers?.LastOrDefault()?.Name;
+
+    public string? TotpSecretkey { get; set; } = null;
+
+    public DateTime? TfaRegDeadline { get; set; }
+};

EnvelopeGenerator.Application/DTOs/Receiver/ReceiverUpdateDto.cs

@@ -1,6 +1,5 @@
 using DigitalData.Core.Abstractions;
 
-namespace EnvelopeGenerator.Application.DTOs.Receiver
-{
-    public record ReceiverUpdateDto(int Id) : IUnique<int>;
-}
+namespace EnvelopeGenerator.Application.DTOs.Receiver;
+
+public record ReceiverUpdateDto(int Id, string? TotpSecretkey = null, DateTime? TfaRegDeadline = null) : IUnique<int>;

EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj

@@ -1,57 +1,60 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
+	<PropertyGroup>
+		<TargetFramework>net7.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+	</PropertyGroup>
 
-  <ItemGroup>
-    <None Remove="Resources\Model.Designer.vb" />
-  </ItemGroup>
+	<ItemGroup>
+		<None Remove="Resources\Model.Designer.vb" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="AutoMapper" Version="13.0.1" />
-    <PackageReference Include="DigitalData.Core.Abstractions" Version="2.2.1" />
-    <PackageReference Include="DigitalData.Core.Application" Version="2.0.0" />
-    <PackageReference Include="DigitalData.Core.Client" Version="2.0.3" />
-    <PackageReference Include="DigitalData.Core.DTO" Version="2.0.0" />
-    <PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="2.0.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="7.0.18" />
-    <PackageReference Include="UserManager.Application" Version="2.0.0" />
-    <PackageReference Include="UserManager.Infrastructure" Version="2.0.0" />
-  </ItemGroup>
+	<ItemGroup>
+		<PackageReference Include="AutoMapper" Version="13.0.1" />
+		<PackageReference Include="DigitalData.Core.Abstractions" Version="2.2.1" />
+		<PackageReference Include="DigitalData.Core.Application" Version="2.0.0" />
+		<PackageReference Include="DigitalData.Core.Client" Version="2.0.3" />
+		<PackageReference Include="DigitalData.Core.DTO" Version="2.0.0" />
+		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="2.0.0" />
+		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="7.0.18" />
+		<PackageReference Include="Otp.NET" Version="1.4.0" />
+		<PackageReference Include="QRCoder" Version="1.6.0" />
+		<PackageReference Include="QRCoder-ImageSharp" Version="0.10.0" />
+		<PackageReference Include="UserManager.Application" Version="2.0.0" />
+		<PackageReference Include="UserManager.Infrastructure" Version="2.0.0" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\EnvelopeGenerator.Extensions\EnvelopeGenerator.Extensions.csproj" />
-    <ProjectReference Include="..\EnvelopeGenerator.Infrastructure\EnvelopeGenerator.Infrastructure.csproj" />
-  </ItemGroup>
+	<ItemGroup>
+		<ProjectReference Include="..\EnvelopeGenerator.Extensions\EnvelopeGenerator.Extensions.csproj" />
+		<ProjectReference Include="..\EnvelopeGenerator.Infrastructure\EnvelopeGenerator.Infrastructure.csproj" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <Compile Update="Resources\Model.Designer.cs">
-      <DesignTime>True</DesignTime>
-      <AutoGen>True</AutoGen>
-      <DependentUpon>Model.resx</DependentUpon>
-    </Compile>
-  </ItemGroup>
+	<ItemGroup>
+		<Compile Update="Resources\Model.Designer.cs">
+			<DesignTime>True</DesignTime>
+			<AutoGen>True</AutoGen>
+			<DependentUpon>Model.resx</DependentUpon>
+		</Compile>
+	</ItemGroup>
 
-  <ItemGroup>
-    <EmbeddedResource Update="Resources\Model.en.resx">
-      <CustomToolNamespace>My.Resources</CustomToolNamespace>
-      <LastGenOutput>Model.en.Designer.vb</LastGenOutput>
-      <Generator>PublicResXFileCodeGenerator</Generator>
-    </EmbeddedResource>
-    <EmbeddedResource Update="Resources\Model.resx">
-      <CustomToolNamespace>My.Resources</CustomToolNamespace>
-      <LastGenOutput>Model.Designer.cs</LastGenOutput>
-      <Generator>PublicResXFileCodeGenerator</Generator>
-    </EmbeddedResource>
-    <EmbeddedResource Update="Resources\Resource.de-DE.resx">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </EmbeddedResource>
-    <EmbeddedResource Update="Resources\Resource.en-US.resx">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </EmbeddedResource>
-  </ItemGroup>
+	<ItemGroup>
+		<EmbeddedResource Update="Resources\Model.en.resx">
+			<CustomToolNamespace>My.Resources</CustomToolNamespace>
+			<LastGenOutput>Model.en.Designer.vb</LastGenOutput>
+			<Generator>PublicResXFileCodeGenerator</Generator>
+		</EmbeddedResource>
+		<EmbeddedResource Update="Resources\Model.resx">
+			<CustomToolNamespace>My.Resources</CustomToolNamespace>
+			<LastGenOutput>Model.Designer.cs</LastGenOutput>
+			<Generator>PublicResXFileCodeGenerator</Generator>
+		</EmbeddedResource>
+		<EmbeddedResource Update="Resources\Resource.de-DE.resx">
+			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+		</EmbeddedResource>
+		<EmbeddedResource Update="Resources\Resource.en-US.resx">
+			<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+		</EmbeddedResource>
+	</ItemGroup>
 
 </Project>

EnvelopeGenerator.Application/Extensions/CacheExtensions.cs

@@ -1,43 +1,131 @@
 using Microsoft.Extensions.Caching.Distributed;
-using Microsoft.Extensions.Options;
-using Newtonsoft.Json.Linq;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace EnvelopeGenerator.Application.Extensions
 {
     public static class CacheExtensions
     {
-        public static Task SetLongAsync(this IDistributedCache cache, string key, long value, DistributedCacheEntryOptions? options = null)
+        public static Task SetLongAsync(this IDistributedCache cache, string key, long value, DistributedCacheEntryOptions? options = null, CancellationToken cToken = default)
             => options is null
-                ? cache.SetAsync(key, BitConverter.GetBytes(value))
-                : cache.SetAsync(key, BitConverter.GetBytes(value), options: options);
+                ? cache.SetAsync(key, BitConverter.GetBytes(value), token: cToken)
+                : cache.SetAsync(key, BitConverter.GetBytes(value), options: options, token: cToken);
 
-        public static async Task<long?> GetLongAsync(this IDistributedCache cache, string key)
+        public static async Task<long?> GetLongAsync(this IDistributedCache cache, string key, CancellationToken cToken = default)
         {
-            var value = await cache.GetAsync(key);
+            var value = await cache.GetAsync(key, cToken);
             return value is null ? null : BitConverter.ToInt64(value, 0);
         }
 
-        public static Task SetDateTimeAsync(this IDistributedCache cache, string key, DateTime value, DistributedCacheEntryOptions? options = null)
-            => cache.SetLongAsync(key: key, value: value.Ticks, options: options);
+        public static Task SetDateTimeAsync(this IDistributedCache cache, string key, DateTime value, DistributedCacheEntryOptions? options = null, CancellationToken cToken = default)
+            => cache.SetLongAsync(key: key, value: value.Ticks, options: options, cToken: cToken);
 
-        public static async Task<DateTime?> GetDateTimeAsync(this IDistributedCache cache, string key)
+        public static async Task<DateTime?> GetDateTimeAsync(this IDistributedCache cache, string key, CancellationToken cToken = default)
         {
-            var value = await cache.GetAsync(key);
+            var value = await cache.GetAsync(key, cToken);
             return value is null ? null : new(BitConverter.ToInt64(value, 0));
         }
 
-        public static Task SetTimeSpanAsync(this IDistributedCache cache, string key, TimeSpan value, DistributedCacheEntryOptions? options = null)
-            => cache.SetLongAsync(key: key, value: value.Ticks, options: options);
+        public static Task SetTimeSpanAsync(this IDistributedCache cache, string key, TimeSpan value, DistributedCacheEntryOptions? options = null, CancellationToken cToken = default)
+            => cache.SetLongAsync(key: key, value: value.Ticks, options: options, cToken);
 
-        public static async Task<TimeSpan?> GetTimeSpanAsync(this IDistributedCache cache, string key)
+        public static async Task<TimeSpan?> GetTimeSpanAsync(this IDistributedCache cache, string key, CancellationToken cToken = default)
         {
-            var value = await cache.GetAsync(key);
+            var value = await cache.GetAsync(key, cToken);
             return value is null ? null : new(BitConverter.ToInt64(value, 0));
         }
+
+        //TODO: use code generator
+        #region GetOrSetAsync
+
+        #region string
+        public static async Task<string> GetOrSetAsync(this IDistributedCache cache, string key, Func<string> factory, DistributedCacheEntryOptions? options = null, bool cacheInBackground = false, CancellationToken cToken = default)
+        {
+            var value = await cache.GetStringAsync(key, cToken);
+            if (value is null)
+            {
+                // create new and save
+                value = factory();
+
+                Task CacheAsync() => options is null
+                        ? cache.SetStringAsync(key, value, cToken)
+                        : cache.SetStringAsync(key, value, options, cToken);
+
+                if (cacheInBackground)
+                    _ = Task.Run(async () => await CacheAsync(), cToken);
+                else
+                    await CacheAsync();
+            }
+
+            return value;
+        }
+
+        public static async Task<string> GetOrSetAsync(this IDistributedCache cache, string key, Func<Task<string>> factoryAsync, DistributedCacheEntryOptions? options = null, bool cacheInBackground = false, CancellationToken cToken = default)
+        {
+            var value = await cache.GetStringAsync(key, cToken);
+            if(value is null)
+            {
+                // create new and save
+                value = await factoryAsync();
+
+                Task CacheAsync() => options is null
+                    ? cache.SetStringAsync(key: key, value: value, token: cToken)
+                    : cache.SetStringAsync(key: key, value: value, options: options, token: cToken);
+
+                if (cacheInBackground)
+                    _ = Task.Run(async () => await CacheAsync(), cToken);
+                else
+                    await CacheAsync();
+            }
+
+            return value;
+        }
+        #endregion
+
+        #region DateTime
+        public static async Task<DateTime> GetOrSetAsync(this IDistributedCache cache, string key, Func<DateTime> factory, DistributedCacheEntryOptions? options = null, bool cacheInBackground = false, CancellationToken cToken = default)
+        {
+            if (await cache.GetDateTimeAsync(key, cToken) is DateTime dateTimeValue)
+                return dateTimeValue;
+            else
+            {
+                // create new and save
+                var newValue = factory();
+
+                Task CacheAsync() => options is null
+                        ? cache.SetDateTimeAsync(key, newValue, cToken: cToken)
+                        : cache.SetDateTimeAsync(key, newValue, options, cToken);
+
+                if (cacheInBackground)
+                    _ = Task.Run(async () => await CacheAsync(), cToken);
+                else
+                    await CacheAsync();
+
+                return newValue;
+            }
+        }
+
+        public static async Task<DateTime> GetOrSetAsync(this IDistributedCache cache, string key, Func<Task<DateTime>> factory, DistributedCacheEntryOptions? options = null, bool cacheInBackground = false, CancellationToken cToken = default)
+        {
+            if (await cache.GetDateTimeAsync(key, cToken) is DateTime dateTimeValue)
+                return dateTimeValue;
+            else
+            {
+                // create new and save
+                var newValue = await factory();
+
+                Task CacheAsync() => options is null
+                        ? cache.SetDateTimeAsync(key, newValue, cToken: cToken)
+                        : cache.SetDateTimeAsync(key, newValue, options, cToken);
+
+                if (cacheInBackground)
+                    _ = Task.Run(async () => await CacheAsync(), cToken);
+                else
+                    await CacheAsync();
+
+                return newValue;
+            }
+        }
+        #endregion
+
+        #endregion
     }
 }

EnvelopeGenerator.Application/Extensions/DIExtensions.cs

@@ -9,68 +9,61 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using DigitalData.Core.Client;
-using EnvelopeGenerator.Application.Configurations.GtxMessaging;
+using QRCoder;
 
-namespace EnvelopeGenerator.Application.Extensions
+namespace EnvelopeGenerator.Application.Extensions;
+
+public static class DIExtensions
 {
-    public static class DIExtensions
+    public static IServiceCollection AddEnvelopeGenerator(this IServiceCollection services, IConfiguration config)
     {
-        public static IServiceCollection AddEnvelopeGenerator(this IServiceCollection services, IConfigurationSection dispatcherConfigSection, IConfigurationSection mailConfigSection, IConfigurationSection smsConfigSection, IConfigurationSection codeGeneratorConfigSection, IConfigurationSection envelopeReceiverCacheParamsSection)
-        {
-            //Inject CRUD Service and repositoriesad
-            services.TryAddScoped<IConfigRepository, ConfigRepository>();
-            services.TryAddScoped<IDocumentReceiverElementRepository, DocumentReceiverElementRepository>();
-            services.TryAddScoped<IEnvelopeDocumentRepository, EnvelopeDocumentRepository>();
-            services.TryAddScoped<IConfigRepository, ConfigRepository>();
-            services.TryAddScoped<IDocumentReceiverElementRepository, DocumentReceiverElementRepository>();
-            services.TryAddScoped<IDocumentStatusRepository, DocumentStatusRepository>();
-            services.TryAddScoped<IEmailTemplateRepository, EmailTemplateRepository>();
-            services.TryAddScoped<IEnvelopeRepository, EnvelopeRepository>();
-            services.TryAddScoped<IEnvelopeCertificateRepository, EnvelopeCertificateRepository>();
-            services.TryAddScoped<IEnvelopeDocumentRepository, EnvelopeDocumentRepository>();
-            services.TryAddScoped<IEnvelopeHistoryRepository, EnvelopeHistoryRepository>();
-            services.TryAddScoped<IEnvelopeReceiverRepository, EnvelopeReceiverRepository>();
-            services.TryAddScoped<IEnvelopeTypeRepository, EnvelopeTypeRepository>();
-            services.TryAddScoped<IReceiverRepository, ReceiverRepository>();
-            services.TryAddScoped<IUserReceiverRepository, UserReceiverRepository>();
-            services.TryAddScoped<IEnvelopeReceiverReadOnlyRepository, EnvelopeReceiverReadOnlyRepository>();
-            services.TryAddScoped<IConfigService, ConfigService>();
-            services.TryAddScoped<IDocumentReceiverElementService, DocumentReceiverElementService>();
-            services.TryAddScoped<IEnvelopeDocumentService, EnvelopeDocumentService>();
-            services.TryAddScoped<IEnvelopeHistoryService, EnvelopeHistoryService>();
-            services.TryAddScoped<IDocumentStatusService, DocumentStatusService>();
-            services.TryAddScoped<IEmailTemplateService, EmailTemplateService>();
-            services.TryAddScoped<IEnvelopeService, EnvelopeService>();
-            services.TryAddScoped<IEnvelopeCertificateService, EnvelopeCertificateService>();
-            services.TryAddScoped<IEnvelopeDocumentService, EnvelopeDocumentService>();
-            services.TryAddScoped<IEnvelopeReceiverService, EnvelopeReceiverService>();
-            services.TryAddScoped<IEnvelopeTypeService, EnvelopeTypeService>();
-            services.TryAddScoped<IReceiverService, ReceiverService>();
-            services.TryAddScoped<IUserReceiverService, UserReceiverService>();
-            services.TryAddScoped<IEnvelopeReceiverReadOnlyService, EnvelopeReceiverReadOnlyService>();
+        //Inject CRUD Service and repositoriesad
+        services.TryAddScoped<IConfigRepository, ConfigRepository>();
+        services.TryAddScoped<IDocumentReceiverElementRepository, DocumentReceiverElementRepository>();
+        services.TryAddScoped<IEnvelopeDocumentRepository, EnvelopeDocumentRepository>();
+        services.TryAddScoped<IConfigRepository, ConfigRepository>();
+        services.TryAddScoped<IDocumentReceiverElementRepository, DocumentReceiverElementRepository>();
+        services.TryAddScoped<IDocumentStatusRepository, DocumentStatusRepository>();
+        services.TryAddScoped<IEmailTemplateRepository, EmailTemplateRepository>();
+        services.TryAddScoped<IEnvelopeRepository, EnvelopeRepository>();
+        services.TryAddScoped<IEnvelopeCertificateRepository, EnvelopeCertificateRepository>();
+        services.TryAddScoped<IEnvelopeDocumentRepository, EnvelopeDocumentRepository>();
+        services.TryAddScoped<IEnvelopeHistoryRepository, EnvelopeHistoryRepository>();
+        services.TryAddScoped<IEnvelopeReceiverRepository, EnvelopeReceiverRepository>();
+        services.TryAddScoped<IEnvelopeTypeRepository, EnvelopeTypeRepository>();
+        services.TryAddScoped<IReceiverRepository, ReceiverRepository>();
+        services.TryAddScoped<IUserReceiverRepository, UserReceiverRepository>();
+        services.TryAddScoped<IEnvelopeReceiverReadOnlyRepository, EnvelopeReceiverReadOnlyRepository>();
+        services.TryAddScoped<IConfigService, ConfigService>();
+        services.TryAddScoped<IDocumentReceiverElementService, DocumentReceiverElementService>();
+        services.TryAddScoped<IEnvelopeDocumentService, EnvelopeDocumentService>();
+        services.TryAddScoped<IEnvelopeHistoryService, EnvelopeHistoryService>();
+        services.TryAddScoped<IDocumentStatusService, DocumentStatusService>();
+        services.TryAddScoped<IEmailTemplateService, EmailTemplateService>();
+        services.TryAddScoped<IEnvelopeService, EnvelopeService>();
+        services.TryAddScoped<IEnvelopeCertificateService, EnvelopeCertificateService>();
+        services.TryAddScoped<IEnvelopeDocumentService, EnvelopeDocumentService>();
+        services.TryAddScoped<IEnvelopeReceiverService, EnvelopeReceiverService>();
+        services.TryAddScoped<IEnvelopeTypeService, EnvelopeTypeService>();
+        services.TryAddScoped<IReceiverService, ReceiverService>();
+        services.TryAddScoped<IUserReceiverService, UserReceiverService>();
+        services.TryAddScoped<IEnvelopeReceiverReadOnlyService, EnvelopeReceiverReadOnlyService>();
 
-            //Auto mapping profiles
-            services.AddAutoMapper(typeof(BasicDtoMappingProfile).Assembly);
-            services.AddAutoMapper(typeof(UserMappingProfile).Assembly);
+        //Auto mapping profiles
+        services.AddAutoMapper(typeof(BasicDtoMappingProfile).Assembly);
+        services.AddAutoMapper(typeof(UserMappingProfile).Assembly);
 
-            services.Configure<DispatcherConfig>(dispatcherConfigSection);
-            services.Configure<MailConfig>(mailConfigSection);
-            services.Configure<CodeGeneratorConfig>(codeGeneratorConfigSection);
-            services.Configure<EnvelopeReceiverCacheParams>(envelopeReceiverCacheParamsSection);
+        services.Configure<DispatcherParams>(config.GetSection(nameof(DispatcherParams)));
+        services.Configure<MailParams>(config.GetSection(nameof(MailParams)));
+        services.Configure<AuthenticatorParams>(config.GetSection(nameof(AuthenticatorParams)));
+        services.Configure<TotpSmsParams>(config.GetSection(nameof(TotpSmsParams)));
 
-            services.AddHttpClientService<SmsParams>(smsConfigSection);
-            services.TryAddSingleton<IMessagingService, GtxMessagingService>();
-            services.TryAddSingleton<ICodeGenerator, CodeGenerator>();
-            services.TryAddSingleton<IEnvelopeReceiverCache, EnvelopeReceiverCache>();
+        services.AddHttpClientService<GtxMessagingParams>(config.GetSection(nameof(GtxMessagingParams)));
+        services.TryAddSingleton<ISmsSender, GTXSmsSender>();
+        services.TryAddSingleton<IEnvelopeSmsHandler, EnvelopeSmsHandler>();
+        services.TryAddSingleton<IAuthenticator, Authenticator>();
+        services.TryAddSingleton<QRCodeGenerator>();
 
-            return services;
-        }
-
-        public static IServiceCollection AddEnvelopeGenerator(this IServiceCollection services, IConfiguration config) => services.AddEnvelopeGenerator(
-            dispatcherConfigSection: config.GetSection("DispatcherConfig"),
-            mailConfigSection: config.GetSection("MailConfig"),
-            smsConfigSection: config.GetSection("SmsConfig"),
-            codeGeneratorConfigSection: config.GetSection("CodeGeneratorConfig"),
-            envelopeReceiverCacheParamsSection: config.GetSection("EnvelopeReceiverCacheParams"));
+        return services;
     }
 }

EnvelopeGenerator.Application/Extensions/MappingExtensions.cs

@@ -1,5 +1,4 @@
-using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
-using EnvelopeGenerator.Domain.HttpResponse;
+using EnvelopeGenerator.Application.DTOs.Messaging;
 
 namespace EnvelopeGenerator.Application.Extensions
 {
@@ -8,5 +7,8 @@ namespace EnvelopeGenerator.Application.Extensions
         public static bool Ok(this GtxMessagingResponse gtxMessagingResponse)
             => gtxMessagingResponse.TryGetValue("message-status", out var status)
             && status?.ToString()?.ToLower() == "ok";
+
+        public static string ToBase64String(this byte[] bytes)
+            => Convert.ToBase64String(bytes);
     }
 }

EnvelopeGenerator.Application/MappingProfiles/BasicDtoMappingProfile.cs

@@ -7,7 +7,6 @@ using EnvelopeGenerator.Application.DTOs.Messaging;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using EnvelopeGenerator.Application.Extensions;
 using EnvelopeGenerator.Domain.Entities;
-using EnvelopeGenerator.Domain.HttpResponse;
 
 namespace EnvelopeGenerator.Application.MappingProfiles
 {
@@ -46,7 +45,7 @@ namespace EnvelopeGenerator.Application.MappingProfiles
             CreateMap<EnvelopeHistoryCreateDto, EnvelopeHistory>();
             CreateMap<EnvelopeReceiverDto, EnvelopeReceiver>();
             CreateMap<EnvelopeTypeDto, EnvelopeType>();
-            CreateMap<ReceiverReadDto, Receiver>();
+            CreateMap<ReceiverReadDto, Receiver>().ForMember(rcv => rcv.EnvelopeReceivers, rcvReadDto => rcvReadDto.Ignore());
             CreateMap<ReceiverCreateDto, Receiver>();
             CreateMap<ReceiverUpdateDto, Receiver>();
             CreateMap<UserReceiverDto, UserReceiver>();

EnvelopeGenerator.Application/Resources/Resource.de-DE.resx

@@ -159,41 +159,56 @@
   <data name="HomePageDescription" xml:space="preserve">
     <value>Das digitale Unterschriftenportal ist eine Plattform, die entwickelt wurde, um Ihre Dokumente sicher zu unterschreiben und zu verwalten. Mit seiner benutzerfreundlichen Oberfläche können Sie Ihre Dokumente schnell hochladen, die Unterschriftsprozesse verfolgen und Ihre digitalen Unterschriftenanwendungen einfach durchführen. Dieses Portal beschleunigt Ihren Arbeitsablauf mit rechtlich gültigen Unterschriften und erhöht gleichzeitig die Sicherheit Ihrer Dokumente.</value>
   </data>
-  <data name="LocakedOpen" xml:space="preserve">
-    <value>Öffnen</value>
-  </data>
   <data name="LocationWarning" xml:space="preserve">
     <value>Bitte überprüfen Sie die Standortinformationen. Wenn sie falsch sind, korrigieren Sie diese bitte.</value>
   </data>
-  <data name="LockedAccessCode" xml:space="preserve">
-    <value>Zugriffscode</value>
+  <data name="LockedBodyAccess" xml:space="preserve">
+    <value>Wir senden Ihnen nun einen Zugriffscode an Ihre hinterlegte Email-Adresse. Dies kann evtl. einige Minuten dauern!</value>
   </data>
-  <data name="LockedBody" xml:space="preserve">
-    <value>Wir haben Ihnen gerade den Zugriffscode an die hinterlegte Email Adresse gesendet. Dies kann evtl. einige Minuten dauern.</value>
+  <data name="LockedBodyAuthenticator" xml:space="preserve">
+    <value>Bitte geben Sie den in Ihrer Authenticator-App angegebenen TOTP-Code ein.</value>
   </data>
-  <data name="LockedFooterBody" xml:space="preserve">
-    <value>Bitte überprüfen Sie Ihr Email Postfach inklusive Spam-Ordner. Sie können auch den Absender bitten, Ihnen den Code auf anderem Wege zukommen zu lassen.</value>
+  <data name="LockedBodyAuthenticatorNew" xml:space="preserve">
+    <value>Wir haben den QR-Code an Ihre E-Mail-Adresse gesendet. Ihr QR-Code ist bis {0} gültig. Sie können ihn für alle Umschläge verwenden, die Sie an diese E-Mail-Adresse erhalten.</value>
   </data>
-  <data name="LockedFooterTitle" xml:space="preserve">
-    <value>Sie haben keinen Zugriffscode erhalten?</value>
-  </data>
-  <data name="LockedSmsAccessCode" xml:space="preserve">
-    <value>SMS-Code</value>
-  </data>
-  <data name="LockedSmsTfaBody" xml:space="preserve">
+  <data name="LockedBodySms" xml:space="preserve">
     <value>Wir haben soeben den Zugangscode als SMS an die von Ihnen angegebene Telefonnummer gesendet.</value>
   </data>
-  <data name="LockedSmsTfaFooterBody" xml:space="preserve">
+  <data name="LockedCodeLabelAccess" xml:space="preserve">
+    <value>Zugriffscode</value>
+  </data>
+  <data name="LockedCodeLabelAuthenticator" xml:space="preserve">
+    <value>TOTP</value>
+  </data>
+  <data name="LockedCodeLabelSms" xml:space="preserve">
+    <value>SMS-Code</value>
+  </data>
+  <data name="LockedFooterBodyAccess" xml:space="preserve">
+    <value>Bitte überprüfen Sie Ihr Email Postfach inklusive Spam-Ordner. Sie können auch den Absender &lt;a class="mail-link" href="mailto:{0}?subject={1}&amp;body={2}" target="_blank"&gt;{0}&lt;/a&gt; bitten, Ihnen den Code auf anderem Wege zukommen zu lassen.</value>
+  </data>
+  <data name="LockedFooterBodyAuthenticator" xml:space="preserve">
+    <value>Der neue QR-Code wird nur einmal für einen bestimmten Zeitraum gesendet und nach dem Scannen in Ihrer Authenticator-App gespeichert. Er kann für alle Umschläge verwendet werden, die an dieselbe E-Mail-Adresse gesendet werden, bis er abläuft. Wenn Sie die QR-Code-Mail nicht erhalten oder sie sowohl aus der Mail als auch aus authenticator löschen, kontaktieren Sie bitte den Absender.</value>
+  </data>
+  <data name="LockedFooterBodySms" xml:space="preserve">
     <value>Sie können den Absender bitten, Ihre Rufnummer zu überprüfen. Die Telefonnummer muss mit der Ortsvorwahl eingegeben werden. Andernfalls können Sie beantragen, den Zwei-Faktor-Schutz zu entfernen.</value>
   </data>
-  <data name="LockedSmsTfaFooterTitle" xml:space="preserve">
+  <data name="LockedFooterTitleAccess" xml:space="preserve">
+    <value>Sie haben keinen Zugriffscode erhalten?</value>
+  </data>
+  <data name="LockedFooterTitleAuthenticator" xml:space="preserve">
+    <value>Sie haben keinen QR-Code erhalten?</value>
+  </data>
+  <data name="LockedFooterTitleSms" xml:space="preserve">
     <value>Sie haben keine SMS erhalten?</value>
   </data>
-  <data name="LockedSmsTfaTitle" xml:space="preserve">
+  <data name="LockedTitleAccess" xml:space="preserve">
+    <value>Dokument erfordert einen Zugriffscode</value>
+  </data>
+  <data name="LockedTitleAuthenticator" xml:space="preserve">
     <value>2-Faktor-Authentifizierung</value>
   </data>
-  <data name="LockedTitle" xml:space="preserve">
-    <value>Dokument erfordert einen Zugriffscode</value>
+  <data name="LockedTitleSms" xml:space="preserve">
+    <value>2-Faktor-Authentifizierung</value>
   </data>
   <data name="Privacy" xml:space="preserve">
     <value>Datenschutz</value>

EnvelopeGenerator.Application/Resources/Resource.en-US.resx

@@ -159,41 +159,56 @@
   <data name="HomePageDescription" xml:space="preserve">
     <value>The Digital Signature Portal is a platform developed for securely signing and managing your documents. With its user-friendly interface, you can quickly upload your documents, track the signing processes, and easily carry out your digital signature applications. This portal accelerates your workflow with legally valid signatures while enhancing the security of your documents.</value>
   </data>
-  <data name="LocakedOpen" xml:space="preserve">
-    <value>Open</value>
-  </data>
   <data name="LocationWarning" xml:space="preserve">
     <value>Please review the location information. If it is incorrect, kindly make the necessary corrections.</value>
   </data>
-  <data name="LockedAccessCode" xml:space="preserve">
-    <value>Access Code</value>
+  <data name="LockedBodyAccess" xml:space="preserve">
+    <value>We will now send you an access code to your registered e-mail address. This may take a few minutes!</value>
   </data>
-  <data name="LockedBody" xml:space="preserve">
-    <value>We have just sent you the access code to the email address you provided. This may take a few minutes.</value>
+  <data name="LockedBodyAuthenticator" xml:space="preserve">
+    <value>Please enter the TOTP provided in your Authenticator app.</value>
   </data>
-  <data name="LockedFooterBody" xml:space="preserve">
-    <value>Please check your email inbox including your spam folder. Furthermore, you can also ask the sender to send the code by other means.</value>
+  <data name="LockedBodyAuthenticatorNew" xml:space="preserve">
+    <value>We have sent the QR code to your e-mail address. Your QR code is valid until {0}. You can use it for all envelopes received at this email address.</value>
   </data>
-  <data name="LockedFooterTitle" xml:space="preserve">
-    <value>You have not received an access code?</value>
-  </data>
-  <data name="LockedSmsAccessCode" xml:space="preserve">
-    <value>SMS Code</value>
-  </data>
-  <data name="LockedSmsTfaBody" xml:space="preserve">
+  <data name="LockedBodySms" xml:space="preserve">
     <value>We have just sent the access code as an SMS to the phone number you provided.</value>
   </data>
-  <data name="LockedSmsTfaFooterBody" xml:space="preserve">
+  <data name="LockedCodeLabelAccess" xml:space="preserve">
+    <value>Access Code</value>
+  </data>
+  <data name="LockedCodeLabelAuthenticator" xml:space="preserve">
+    <value>TOTP</value>
+  </data>
+  <data name="LockedCodeLabelSms" xml:space="preserve">
+    <value>SMS Code</value>
+  </data>
+  <data name="LockedFooterBodyAccess" xml:space="preserve">
+    <value>Please check your email inbox including the spam folder. You can also ask the sender &lt;a class="mail-link" href="mailto:{0}?subject={1}&amp;body={2}" target="_blank"&gt;{0}&lt;/a&gt; to send you the code by other means.</value>
+  </data>
+  <data name="LockedFooterBodyAuthenticator" xml:space="preserve">
+    <value>The new QR code is sent only once for a given period and is saved in your authenticator app once scanned. It can be used for all envelopes received at the same email address until it expires. If you do not receive the QR code mail or delete it both from the mail and from authenticator, please contact the sender.</value>
+  </data>
+  <data name="LockedFooterBodySms" xml:space="preserve">
     <value>You can ask the sender to check your phone number. The phone number must be entered with the area code. Otherwise you can request to remove the two-factor protection.</value>
   </data>
-  <data name="LockedSmsTfaFooterTitle" xml:space="preserve">
+  <data name="LockedFooterTitleAccess" xml:space="preserve">
+    <value>You have not received an access code?</value>
+  </data>
+  <data name="LockedFooterTitleAuthenticator" xml:space="preserve">
+    <value>You have not received a QR code?</value>
+  </data>
+  <data name="LockedFooterTitleSms" xml:space="preserve">
     <value>You have not received an SMS?</value>
   </data>
-  <data name="LockedSmsTfaTitle" xml:space="preserve">
+  <data name="LockedTitleAccess" xml:space="preserve">
+    <value>Document requires an access code</value>
+  </data>
+  <data name="LockedTitleAuthenticator" xml:space="preserve">
     <value>2-Factor Authentication</value>
   </data>
-  <data name="LockedTitle" xml:space="preserve">
-    <value>Document requires an access code</value>
+  <data name="LockedTitleSms" xml:space="preserve">
+    <value>2-Factor Authentication</value>
   </data>
   <data name="Privacy" xml:space="preserve">
     <value>Privacy</value>

EnvelopeGenerator.Application/Services/Authenticator.cs

@@ -0,0 +1,71 @@
+using EnvelopeGenerator.Application.Configurations;
+using EnvelopeGenerator.Application.Contracts;
+using Microsoft.Extensions.Options;
+using OtpNet;
+using QRCoder;
+using System.Text;
+
+namespace EnvelopeGenerator.Application.Services
+{
+    public class Authenticator : IAuthenticator
+    {
+        public static Lazy<Authenticator> LazyStatic => new(() => new Authenticator(Options.Create<AuthenticatorParams>(new()), new QRCodeGenerator()));
+
+        public static Authenticator Static => LazyStatic.Value;
+
+        private readonly AuthenticatorParams _params;
+
+        private readonly QRCodeGenerator _qrCodeGenerator;
+
+        public Authenticator(IOptions<AuthenticatorParams> options, QRCodeGenerator qrCodeGenerator)
+        {
+            _params = options.Value;
+            _qrCodeGenerator = qrCodeGenerator;
+        }
+
+        public string GenerateCode(int length)
+        {
+            //TODO: Inject Random as a singleton to support multithreading to improve performance.
+            Random random = new();
+
+            if (length <= 0)
+                throw new ArgumentException("Password length must be greater than 0.");
+
+            var passwordBuilder = new StringBuilder(length);
+
+            for (int i = 0; i < length; i++)
+                passwordBuilder.Append(_params.CharPool[random.Next(_params.CharPool.Length)]);
+
+            return passwordBuilder.ToString();
+        }
+
+        public string GenerateTotpSecretKey(int? length = null)
+            => Base32Encoding.ToString(KeyGeneration.GenerateRandomKey(length ?? _params.DefaultTotpSecretKeyLength));
+
+        public byte[] GenerateTotpQrCode(string userEmail, string secretKey, string? issuer = null, string? totpUrlFormat = null, int? pixelsPerModule = null)
+        {
+            var url = string.Format(totpUrlFormat ?? _params.TotpUrlFormat,
+                Uri.EscapeDataString(userEmail),
+                Uri.EscapeDataString(secretKey),
+                Uri.EscapeDataString(issuer ?? _params.TotpIssuer));
+            using var qrCodeData = _qrCodeGenerator.CreateQrCode(url, QRCodeGenerator.ECCLevel.Q);
+            using var qrCode = new BitmapByteQRCode(qrCodeData);
+            return qrCode.GetGraphic(pixelsPerModule ?? _params.TotpQRPixelsPerModule);
+        }
+
+        public byte[] GenerateTotpQrCode(string userEmail, int? length = null, string? issuer = null, string? totpUrlFormat = null, int? pixelsPerModule = null)
+        {
+            return GenerateTotpQrCode(
+                userEmail: userEmail,
+                secretKey: GenerateTotpSecretKey(length: length),
+                issuer: issuer,
+                totpUrlFormat: totpUrlFormat,
+                pixelsPerModule: pixelsPerModule);
+        }
+
+        public string GenerateTotp(string secretKey, int step = 30) => new Totp(Base32Encoding.ToBytes(secretKey), step).ComputeTotp();
+        
+        public bool VerifyTotp(string totpCode, string secretKey, int step = 30, VerificationWindow? window = null)
+            => new Totp(Base32Encoding.ToBytes(secretKey), step).VerifyTotp(totpCode, out _, window);
+    }
+}

EnvelopeGenerator.Application/Services/CodeGenerator.cs

@@ -1,37 +0,0 @@
-using EnvelopeGenerator.Application.Configurations;
-using EnvelopeGenerator.Application.Contracts;
-using Microsoft.Extensions.Options;
-using System.Text;
-
-namespace EnvelopeGenerator.Application.Services
-{
-    public class CodeGenerator : ICodeGenerator
-    {
-        public static Lazy<CodeGenerator> LazyStatic => new(() => new CodeGenerator(Options.Create<CodeGeneratorConfig>(new())));
-
-        public static CodeGenerator Static => LazyStatic.Value;
-
-        private readonly string _charPool;
-
-        public CodeGenerator(IOptions<CodeGeneratorConfig> options)
-        {
-            _charPool = options.Value.CharPool;
-        }
-
-        public string GenerateCode(int length)
-        {
-            //TODO: Inject Random as a singleton to support multithreading to improve performance.
-            Random random = new();
-
-            if (length <= 0)
-                throw new ArgumentException("Password length must be greater than 0.");
-
-            var passwordBuilder = new StringBuilder(length);
-
-            for (int i = 0; i < length; i++)
-                passwordBuilder.Append(_charPool[random.Next(_charPool.Length)]);
-
-            return passwordBuilder.ToString();
-        }
-    }
-}

EnvelopeGenerator.Application/Services/EnvelopeMailService.cs

@@ -12,6 +12,8 @@ using static EnvelopeGenerator.Common.Constants;
 using EnvelopeGenerator.Extensions;
 using EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
 using EnvelopeGenerator.Application.Configurations;
+using EnvelopeGenerator.Application.Extensions;
+using Newtonsoft.Json;
 
 namespace EnvelopeGenerator.Application.Services
 {
@@ -19,20 +21,22 @@ namespace EnvelopeGenerator.Application.Services
     {
 		private readonly IEmailTemplateService _tempService;
 		private readonly IEnvelopeReceiverService _envRcvService;
-		private readonly DispatcherConfig _dConfig;
+		private readonly DispatcherParams _dConfig;
 		private readonly IConfigService _configService;
 		private readonly Dictionary<string, string> _placeholders;
+		private readonly IAuthenticator _authenticator;
 
-		public EnvelopeMailService(IEmailOutRepository repository, IMapper mapper, IEmailTemplateService tempService, IEnvelopeReceiverService envelopeReceiverService, IOptions<DispatcherConfig> dispatcherConfigOptions, IConfigService configService, IOptions<MailConfig> mailConfig) : base(repository, mapper)
+        public EnvelopeMailService(IEmailOutRepository repository, IMapper mapper, IEmailTemplateService tempService, IEnvelopeReceiverService envelopeReceiverService, IOptions<DispatcherParams> dispatcherConfigOptions, IConfigService configService, IOptions<MailParams> mailConfig, IAuthenticator authenticator) : base(repository, mapper)
         {
             _tempService = tempService;
 			_envRcvService = envelopeReceiverService;
 			_dConfig = dispatcherConfigOptions.Value;
 			_configService = configService;
 			_placeholders = mailConfig.Value.Placeholders;
+			_authenticator = authenticator;
         }
 
-		private async Task<Dictionary<string, string>> CreatePlaceholders(string? accessCode = null, EnvelopeReceiverDto? envelopeReceiverDto = null, EnvelopeReceiverReadOnlyDto? readOnlyDto = null)
+		private async Task<Dictionary<string, string>> CreatePlaceholders(string? accessCode = null, EnvelopeReceiverDto? envelopeReceiverDto = null)
 		{
 			if (accessCode is not null)
                 _placeholders["[DOCUMENT_ACCESS_CODE]"] = accessCode;
@@ -63,10 +67,8 @@ namespace EnvelopeGenerator.Application.Services
 
             return _placeholders;
         }
-
-        public async Task<DataResult<int>> SendAccessCodeAsync(EnvelopeReceiverDto dto) => await SendAsync(dto: dto, tempType: Constants.EmailTemplateType.DocumentAccessCodeReceived);
-
-        public async Task<DataResult<int>> SendAsync(EnvelopeReceiverDto dto, Constants.EmailTemplateType tempType)
+		
+        public async Task<DataResult<int>> SendAsync(EnvelopeReceiverDto dto, EmailTemplateType tempType, Dictionary<string, object>? optionalPlaceholders = null)
         {
 			var tempSerResult = await _tempService.ReadByNameAsync(tempType);
 			if (tempSerResult.IsFailed)
@@ -104,14 +106,19 @@ namespace EnvelopeGenerator.Application.Services
 			
 			var placeholders = await CreatePlaceholders(accessCode: accessCode, envelopeReceiverDto: dto);
 
+			// Add optional place holders.
+			if (optionalPlaceholders is not null)
+				foreach (var oph in optionalPlaceholders)
+					placeholders[oph.Key] = oph.Value.ToString() ?? "NULL";
+
 			//TODO: remove the requirement to add the models using reflections
 			return await CreateWithTemplateAsync(createDto: mail,placeholders: placeholders,
 				dto, dto.Envelope.User!, dto.Envelope);
 		}
 
-		public async Task<DataResult<int>> SendAsync(EnvelopeReceiverReadOnlyDto dto)
+		public async Task<DataResult<int>> SendAsync(EnvelopeReceiverReadOnlyDto dto, Dictionary<string, object>? optionalPlaceholders = null)
 		{
-            var tempSerResult = await _tempService.ReadByNameAsync(Constants.EmailTemplateType.DocumentShared);
+            var tempSerResult = await _tempService.ReadByNameAsync(EmailTemplateType.DocumentShared);
             if (tempSerResult.IsFailed)
                 return tempSerResult.ToFail<int>().Notice(LogLevel.Error, Flag.DataIntegrityIssue, $"The email cannot send because '{Constants.EmailTemplateType.DocumentShared}' template cannot found.");
             var temp = tempSerResult.Data;
@@ -140,7 +147,29 @@ namespace EnvelopeGenerator.Application.Services
 
             var placeholders = await CreatePlaceholders(readOnlyDto: dto);
 
+            // Add optional place holders.
+            if (optionalPlaceholders is not null)
+                foreach (var oph in optionalPlaceholders)
+                placeholders[oph.Key] = oph.Value.ToString() ?? "NULL";
+
             return await CreateWithTemplateAsync(createDto: mail, placeholders: placeholders, dto.Envelope);
         }
+
+        public async Task<DataResult<int>> SendAccessCodeAsync(EnvelopeReceiverDto dto) => await SendAsync(dto: dto, tempType: EmailTemplateType.DocumentAccessCodeReceived);
+
+        public Task<DataResult<int>> SendTFAQrCodeAsync(EnvelopeReceiverDto dto)
+        {
+            // Check if receiver or secret key is null
+            if (dto.Receiver is null)
+                throw new ArgumentNullException(nameof(dto), $"TFA Qr Code cannot sent. Receiver information is missing. Envelope receiver dto is {JsonConvert.SerializeObject(dto)}");
+            if (dto.Receiver.TotpSecretkey is null)
+                throw new ArgumentNullException(nameof(dto), $"TFA Qr Code cannot sent. Receiver.TotpSecretKey is null. Envelope receiver dto is {JsonConvert.SerializeObject(dto)}");
+
+            var totp_qr_64 = _authenticator.GenerateTotpQrCode(userEmail: dto.Receiver.EmailAddress, secretKey: dto.Receiver.TotpSecretkey).ToBase64String();
+            return SendAsync(dto, EmailTemplateType.TotpSecret, new()
+			{
+				{"[TFA_QR_CODE]", totp_qr_64 },
+			});
+        }
     }
 }

EnvelopeGenerator.Application/Services/EnvelopeReceiverCache.cs

@@ -1,50 +0,0 @@
-using AngleSharp.Dom;
-using EnvelopeGenerator.Application.Configurations;
-using EnvelopeGenerator.Application.Contracts;
-using EnvelopeGenerator.Application.Extensions;
-using Microsoft.Extensions.Caching.Distributed;
-using Microsoft.Extensions.Options;
-
-namespace EnvelopeGenerator.Application.Services
-{
-    public class EnvelopeReceiverCache : IEnvelopeReceiverCache
-    {
-        private readonly EnvelopeReceiverCacheParams _cacheParams;
-
-        private readonly DistributedCacheEntryOptions _codeCacheOptions;
-
-        private readonly IDistributedCache _cache;
-
-        public EnvelopeReceiverCache(IOptions<EnvelopeReceiverCacheParams> cacheParamOptions, IDistributedCache cache)
-        {
-            _cacheParams = cacheParamOptions.Value;
-            _codeCacheOptions = new() { AbsoluteExpirationRelativeToNow = cacheParamOptions.Value.CodeCacheValidityPeriod };
-            _cache = cache;
-        }
-
-        public async Task<string?> GetSmsCodeAsync(string envelopeReceiverId)
-        {
-            var code_key = string.Format(_cacheParams.CodeCacheKeyFormat, envelopeReceiverId);
-            return await _cache.GetStringAsync(code_key);
-        }
-
-        public async Task<DateTime> SetSmsCodeAsync(string envelopeReceiverId, string code)
-        {
-            // set key
-            var code_key = string.Format(_cacheParams.CodeCacheKeyFormat, envelopeReceiverId);
-            await _cache.SetStringAsync(code_key, code, _codeCacheOptions);
-
-            // set expiration
-            var code_expiration_key = string.Format(_cacheParams.CodeExpirationCacheKeyFormat, envelopeReceiverId);
-            var expiration = DateTime.Now + _cacheParams.CodeCacheValidityPeriod;
-            await _cache.SetDateTimeAsync(code_expiration_key, expiration, _codeCacheOptions);
-            return expiration;
-        }
-
-        public async Task<DateTime?> GetSmsCodeExpirationAsync(string envelopeReceiverId)
-        {
-            var code_expiration_key = string.Format(_cacheParams.CodeExpirationCacheKeyFormat, envelopeReceiverId);
-            return await _cache.GetDateTimeAsync(code_expiration_key);
-        }
-    }
-}

EnvelopeGenerator.Application/Services/EnvelopeReceiverService.cs

@@ -17,24 +17,24 @@ namespace EnvelopeGenerator.Application.Services
     {
         private readonly IStringLocalizer<Resource> _localizer;
 
-        private readonly IMessagingService _messagingService;
+        private readonly ISmsSender _smsSender;
 
-        public EnvelopeReceiverService(IEnvelopeReceiverRepository repository, IStringLocalizer<Resource> localizer, IMapper mapper, IMessagingService messagingService)
+        public EnvelopeReceiverService(IEnvelopeReceiverRepository repository, IStringLocalizer<Resource> localizer, IMapper mapper, ISmsSender smsSender)
             : base(repository, mapper)
         {
             _localizer = localizer;
-            _messagingService = messagingService;
+            _smsSender = smsSender;
         }
 
-        public async Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true)
+        public async Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true, bool readOnly = true)
         {
-            var env_rcvs = await _repository.ReadBySignatureAsync(signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver);
+            var env_rcvs = await _repository.ReadBySignatureAsync(signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly);
             return Result.Success(_mapper.Map<IEnumerable<EnvelopeReceiverDto>>(env_rcvs));
         }
 
-        public async Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false)
+        public async Task<DataResult<IEnumerable<EnvelopeReceiverDto>>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false, bool readOnly = true)
         {
-            var env_rcvs = await _repository.ReadByUuidAsync(uuid: uuid, withEnvelope: withEnvelope, withReceiver: withReceiver);
+            var env_rcvs = await _repository.ReadByUuidAsync(uuid: uuid, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly);
             return Result.Success(_mapper.Map<IEnumerable<EnvelopeReceiverDto>>(env_rcvs));
         }
 
@@ -44,9 +44,9 @@ namespace EnvelopeGenerator.Application.Services
             return Result.Success(env_rcvs.Select(er => er.AccessCode));
         }
 
-        public async Task<DataResult<EnvelopeReceiverDto>> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true)
+        public async Task<DataResult<EnvelopeReceiverDto>> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true)
         {
-            var env_rcv = await _repository.ReadByUuidSignatureAsync(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver);
+            var env_rcv = await _repository.ReadByUuidSignatureAsync(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly);
             if (env_rcv is null)
                 return Result.Fail<EnvelopeReceiverDto>()
                     .Message(Key.EnvelopeReceiverNotFound);
@@ -54,9 +54,9 @@ namespace EnvelopeGenerator.Application.Services
             return Result.Success(_mapper.Map<EnvelopeReceiverDto>(env_rcv));
         }
 
-        public async Task<DataResult<EnvelopeReceiverSecretDto>> ReadWithSecretByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true)
+        public async Task<DataResult<EnvelopeReceiverSecretDto>> ReadWithSecretByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true)
         {
-            var env_rcv = await _repository.ReadByUuidSignatureAsync(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver);
+            var env_rcv = await _repository.ReadByUuidSignatureAsync(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly);
             if (env_rcv is null)
                 return Result.Fail<EnvelopeReceiverSecretDto>()
                     .Message(Key.EnvelopeReceiverNotFound);
@@ -64,7 +64,7 @@ namespace EnvelopeGenerator.Application.Services
             return Result.Success(_mapper.Map<EnvelopeReceiverSecretDto>(env_rcv));
         }
 
-        public async Task<DataResult<EnvelopeReceiverDto>> ReadByEnvelopeReceiverIdAsync(string envelopeReceiverId, bool withEnvelope = true, bool withReceiver = true)
+        public async Task<DataResult<EnvelopeReceiverDto>> ReadByEnvelopeReceiverIdAsync(string envelopeReceiverId, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true)
         {
             (string? uuid, string? signature)  = envelopeReceiverId.DecodeEnvelopeReceiverId();
 
@@ -75,7 +75,7 @@ namespace EnvelopeGenerator.Application.Services
                     .Notice(LogLevel.Warning, EnvelopeFlag.WrongEnvelopeReceiverId)
                     .Notice(LogLevel.Warning, Flag.PossibleSecurityBreach);
 
-            return await ReadByUuidSignatureAsync(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver);
+            return await ReadByUuidSignatureAsync(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly);
         }
 
         public async Task<DataResult<bool>> VerifyAccessCodeAsync(string uuid, string signature, string accessCode)
@@ -171,7 +171,7 @@ namespace EnvelopeGenerator.Application.Services
                     .Message(Key.PhoneNumberNonexists)
                     .Notice(LogLevel.Error, Flag.NotFound, $"An attempt was made to send sms to the user whose phone number is null. Envelope recipient ID is {envelopeReceiverId}, UUID is {uuid} and signature is {signature}.");
 
-            var res = await _messagingService.SendSmsAsync(recipient: env_rcv.PhoneNumber, message: message);
+            var res = await _smsSender.SendSmsAsync(recipient: env_rcv.PhoneNumber, message: message);
 
             return Result.Success(res);
         }

EnvelopeGenerator.Application/Services/EnvelopeSmsHandler.cs

@@ -0,0 +1,54 @@
+using EnvelopeGenerator.Application.Configurations;
+using EnvelopeGenerator.Application.Contracts;
+using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
+using EnvelopeGenerator.Application.DTOs.Messaging;
+using EnvelopeGenerator.Application.Extensions;
+using Microsoft.Extensions.Caching.Distributed;
+using Microsoft.Extensions.Options;
+
+namespace EnvelopeGenerator.Application.Services;
+
+public class EnvelopeSmsHandler : IEnvelopeSmsHandler
+{
+    private readonly ISmsSender _sender;
+
+    private readonly TotpSmsParams _totpSmsParams;
+
+    private readonly IDistributedCache _dCache;
+
+    private readonly IAuthenticator _authenticator;
+
+    public EnvelopeSmsHandler(ISmsSender sender, IOptions<TotpSmsParams> totpSmsParamsOptions, IDistributedCache distributedCache, IAuthenticator authenticator)
+    {
+        _sender = sender;
+        _totpSmsParams = totpSmsParamsOptions.Value;
+        _dCache = distributedCache;
+        _authenticator = authenticator;
+    }
+
+    /// <summary>
+    /// If expiration is passed then, sends sms and returns smsResponse and up-to-date expiration; otherwise send expiration.
+    /// </summary>
+    /// <param name="er_secret"></param>
+    /// <param name="cToken"></param>
+    /// <returns></returns>
+    public async Task<(SmsResponse? SmsResponse, DateTime Expiration)> SendTotpAsync(EnvelopeReceiverSecretDto er_secret, CancellationToken cToken = default)
+    {
+        var key = string.Format(_totpSmsParams.Expiration.CacheKeyFormat, er_secret.EnvelopeId, er_secret.ReceiverId);
+        var expiration = await _dCache.GetDateTimeAsync(key, cToken);
+
+        if(expiration is DateTime expirationDateTime && expirationDateTime >= DateTime.Now)
+            return (null, expirationDateTime);
+        else
+        {
+            var new_expiration = DateTime.Now.AddSeconds(_totpSmsParams.TotpStep);
+            var totp = _authenticator.GenerateTotp(er_secret.Receiver!.TotpSecretkey!, _totpSmsParams.TotpStep);
+            var msg = string.Format(_totpSmsParams.Format, totp, new_expiration.ToString(_totpSmsParams.Expiration.Format, _totpSmsParams.Expiration.CultureInfo));
+            await _dCache.SetDateTimeAsync(key, new_expiration, cToken: cToken);
+            return (await _sender.SendSmsAsync(er_secret.PhoneNumber!, msg), new_expiration);
+        }
+    }
+
+    public bool VerifyTotp(string totpCode, string secretKey) => _authenticator
+        .VerifyTotp(totpCode, secretKey, _totpSmsParams.TotpStep, _totpSmsParams.TotpVerificationWindow);
+}

EnvelopeGenerator.Application/Services/GTXMessagingService.cs

@@ -1,70 +0,0 @@
-using AutoMapper;
-using DigitalData.Core.Abstractions.Client;
-using DigitalData.Core.Client;
-using EnvelopeGenerator.Application.Configurations.GtxMessaging;
-using EnvelopeGenerator.Application.Contracts;
-using EnvelopeGenerator.Application.DTOs.Messaging;
-using EnvelopeGenerator.Application.Extensions;
-using EnvelopeGenerator.Domain.HttpResponse;
-using Microsoft.Extensions.Caching.Distributed;
-using Microsoft.Extensions.Options;
-
-namespace EnvelopeGenerator.Application.Services
-{
-    public class GtxMessagingService : IMessagingService
-    {
-        private readonly IHttpClientService<SmsParams> _smsClient;
-
-        private readonly SmsParams _smsParams;
-
-        private readonly IMapper _mapper;
-
-        private readonly ICodeGenerator _codeGen;
-
-        private readonly IEnvelopeReceiverCache _erCache;
-
-        public string ServiceProvider { get; }
-
-        public GtxMessagingService(IHttpClientService<SmsParams> smsClient, IOptions<SmsParams> smsParamsOptions, IMapper mapper, ICodeGenerator codeGenerator, IEnvelopeReceiverCache envelopeReceiverCache)
-        {
-            _smsClient = smsClient;
-            _smsParams = smsParamsOptions.Value;
-            _mapper = mapper;
-            ServiceProvider = GetType().Name.Replace("Service", string.Empty);
-            _codeGen = codeGenerator;
-            _erCache = envelopeReceiverCache;
-        }
-
-        public async Task<SmsResponse> SendSmsAsync(string recipient, string message)
-        {
-            return await _smsClient.FetchAsync(queryParams: new Dictionary<string, object?>()
-            {
-                { _smsParams.RecipientQueryParamName, recipient },
-                { _smsParams.MessageQueryParamName, message }
-            })
-            .ThenAsync(res => res.Json<GtxMessagingResponse>())
-            .ThenAsync(_mapper.Map<SmsResponse>);
-        }
-
-        public async Task<SmsResponse> SendSmsCodeAsync(string recipient, string envelopeReceiverId)
-        {
-            var code = await _erCache.GetSmsCodeAsync(envelopeReceiverId);
-
-            if (code is null)
-            {
-                code = _codeGen.GenerateCode(_smsParams.CodeLength);                                
-                var expiration = await _erCache.SetSmsCodeAsync(envelopeReceiverId, code);                
-                var res = await SendSmsAsync(recipient: recipient, message: code);
-                res.Expiration = expiration;
-                return res;
-            }
-            else
-            {
-                var code_expiration = await _erCache.GetSmsCodeExpirationAsync(envelopeReceiverId);
-                return code_expiration is null
-                    ? new() { Ok = false }
-                    : new() { Ok = false, AllowedAt = code_expiration };
-            }
-        }
-    }
-}

EnvelopeGenerator.Application/Services/GTXSmsSender.cs

@@ -0,0 +1,40 @@
+using AutoMapper;
+using DigitalData.Core.Abstractions.Client;
+using DigitalData.Core.Client;
+using EnvelopeGenerator.Application.Configurations;
+using EnvelopeGenerator.Application.Contracts;
+using EnvelopeGenerator.Application.DTOs.Messaging;
+using Microsoft.Extensions.Options;
+
+namespace EnvelopeGenerator.Application.Services;
+
+//TODO: move to DigitalData.Core
+public class GTXSmsSender : ISmsSender
+{
+    private readonly IHttpClientService<GtxMessagingParams> _smsClient;
+
+    private readonly GtxMessagingParams _smsParams;
+
+    private readonly IMapper _mapper;
+
+    public string ServiceProvider { get; }
+
+    public GTXSmsSender(IHttpClientService<GtxMessagingParams> smsClient, IOptions<GtxMessagingParams> smsParamsOptions, IMapper mapper)
+    {
+        _smsClient = smsClient;
+        _smsParams = smsParamsOptions.Value;
+        _mapper = mapper;
+        ServiceProvider = GetType().Name.Replace("Service", string.Empty);
+    }
+
+    public async Task<SmsResponse> SendSmsAsync(string recipient, string message)
+    {
+        return await _smsClient.FetchAsync(queryParams: new Dictionary<string, object?>()
+        {
+            { _smsParams.RecipientQueryParamName, recipient },
+            { _smsParams.MessageQueryParamName, message }
+        })
+        .ThenAsync(res => res.Json<GtxMessagingResponse>())
+        .ThenAsync(_mapper.Map<SmsResponse>);
+    }
+}

EnvelopeGenerator.Application/Services/ReceiverService.cs

@@ -5,6 +5,8 @@ using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using DigitalData.Core.DTO;
+using DigitalData.Core.Abstractions;
+using Microsoft.Extensions.Logging;
 
 namespace EnvelopeGenerator.Application.Services
 {
@@ -34,5 +36,17 @@ namespace EnvelopeGenerator.Application.Services
 
             return await _repository.DeleteAsync(rcv) ? Result.Success() : Result.Fail();
         }
+
+        public virtual async Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto) where TUpdateDto : IUnique<int>
+        {
+            var val = await _repository.ReadByIdAsync(updateDto.Id);
+            if (val == null)
+            {
+                return Result.Fail().Notice(LogLevel.Warning, Flag.NotFound, $"{updateDto.Id} is not found in update process of {GetType()} entity.");
+            }
+
+            var entity = _mapper.Map(updateDto, val);
+            return (await _repository.UpdateAsync(entity)) ? Result.Success() : Result.Fail();
+        }
     }
 }

EnvelopeGenerator.Common/Constants.vb

@@ -77,7 +77,8 @@
     End Enum
 
     Public Enum CertificationType
-        ElectronicSignature = 1
+        AdvancedElectronicSignature = 1
+        'ElectronicSignature = 1
         'QualifiedSignature = 2
     End Enum
 
@@ -99,6 +100,7 @@
         DocumentCompleted
         DocumentAccessCodeReceived
         DocumentShared
+        TotpSecret
     End Enum
 
     Public Enum EncodeType
@@ -108,7 +110,13 @@
         DocumentForwarded
         DocumentShared
     End Enum
+#End Region
 
+#Region "Role"
+    Public NotInheritable Class ReceiverRole
+        Public Const PreAuth As String = "PreAuth"
+        Public Const FullyAuth As String = "FullyAuth"
+    End Class
 #End Region
 
 #Region "Constants"

EnvelopeGenerator.Common/Entities/DbConfig.vb

@@ -5,4 +5,5 @@
     Public Property ExportPath As String = ""
     Public Property SendingProfile As Integer = 0
     Public Property SignatureHost As String = ""
+    Public Property Default_TFA_Enabled As Boolean = False
 End Class

EnvelopeGenerator.Common/Entities/Envelope.vb

@@ -8,8 +8,8 @@
     Public Property Uuid As String = Guid.NewGuid.ToString()
     Public Property UseAccessCode As Boolean = False
     Public Property Language As String = "de-DE"
-    Public Property CertificationType As Constants.CertificationType = Constants.CertificationType.ElectronicSignature
-
+    Public Property CertificationType As Constants.CertificationType = Constants.CertificationType.AdvancedElectronicSignature
+    Public Property TFA_Enabled As Boolean = False
     Public Property SendReminderEmails As Boolean = False
     Public Property FirstReminderDays As Integer = 0
     Public Property ReminderIntervalDays As Integer = 0

EnvelopeGenerator.Common/Entities/EnvelopeReceiver.vb

@@ -75,6 +75,7 @@ Public Class EnvelopeReceiver
     Public Property Sequence As Integer = 0
     Public Property PrivateMessage As String = ""
     Public Property AccessCode As String = ""
+    Public Property PhoneNumber As String = ""
 
     Public Function GetSignature() As String
         Return StringEx.GetChecksum(Email.ToUpper)

EnvelopeGenerator.Common/Entities/EnvelopeType.vb

@@ -6,7 +6,8 @@
     Public Property ContractType As Integer ' Unbenutzt
 
     Public Property Language As String
-    Public Property CertificationType As Constants.CertificationType = Constants.CertificationType.ElectronicSignature
+    Public Property CertificationType As Constants.CertificationType = Constants.CertificationType.AdvancedElectronicSignature
+    Public Property TFA_Enabled As Boolean = False
     Public Property SendReminderEmails As Boolean = False
     Public Property FirstReminderDays As Integer = 0
     Public Property ReminderIntervalDays As Integer = 0

EnvelopeGenerator.Common/EnvelopeGenerator.Common.vbproj

@@ -77,8 +77,8 @@
     <Reference Include="DigitalData.Modules.Logging">
       <HintPath>..\..\2_DLL Projekte\DDModules\Logging\bin\Debug\DigitalData.Modules.Logging.dll</HintPath>
     </Reference>
-    <Reference Include="GdPicture.NET.14, Version=14.2.89.0, Culture=neutral, PublicKeyToken=f52a2e60ad468dbb, processorArchitecture=MSIL">
-      <HintPath>..\packages\GdPicture.14.2.89\lib\net462\GdPicture.NET.14.dll</HintPath>
+    <Reference Include="GdPicture.NET.14, Version=14.2.90.0, Culture=neutral, PublicKeyToken=f52a2e60ad468dbb, processorArchitecture=MSIL">
+      <HintPath>..\packages\GdPicture.14.2.90\lib\net462\GdPicture.NET.14.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="Microsoft.Extensions.Logging.Abstractions, Version=2.1.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
@@ -291,11 +291,11 @@
   </ItemGroup>
   <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
-  <Import Project="..\packages\GdPicture.runtimes.windows.14.2.89\build\net462\GdPicture.runtimes.windows.targets" Condition="Exists('..\packages\GdPicture.runtimes.windows.14.2.89\build\net462\GdPicture.runtimes.windows.targets')" />
+  <Import Project="..\packages\GdPicture.runtimes.windows.14.2.90\build\net462\GdPicture.runtimes.windows.targets" Condition="Exists('..\packages\GdPicture.runtimes.windows.14.2.90\build\net462\GdPicture.runtimes.windows.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>Dieses Projekt verweist auf mindestens ein NuGet-Paket, das auf diesem Computer fehlt. Verwenden Sie die Wiederherstellung von NuGet-Paketen, um die fehlenden Dateien herunterzuladen. Weitere Informationen finden Sie unter "http://go.microsoft.com/fwlink/?LinkID=322105". Die fehlende Datei ist "{0}".</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\GdPicture.runtimes.windows.14.2.89\build\net462\GdPicture.runtimes.windows.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\GdPicture.runtimes.windows.14.2.89\build\net462\GdPicture.runtimes.windows.targets'))" />
+    <Error Condition="!Exists('..\packages\GdPicture.runtimes.windows.14.2.90\build\net462\GdPicture.runtimes.windows.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\GdPicture.runtimes.windows.14.2.90\build\net462\GdPicture.runtimes.windows.targets'))" />
   </Target>
 </Project>

EnvelopeGenerator.Common/Models/ConfigModel.vb

@@ -21,7 +21,8 @@ Public Class ConfigModel
               .ExportPath = oRow.ItemEx("EXPORT_PATH", ""),
               .SendingProfile = oRow.ItemEx("SENDING_PROFILE", 0),
               .SignatureHost = oRow.ItemEx("SIGNATURE_HOST", ""),
-              .ExternalProgramName = oRow.ItemEx("EXTERNAL_PROGRAM_NAME", "")
+              .ExternalProgramName = oRow.ItemEx("EXTERNAL_PROGRAM_NAME", ""),
+              .Default_TFA_Enabled = oRow.ItemEx("DEF_TFA_ENABLED", False)
             }
         Catch ex As Exception
             Logger.Error(ex)

EnvelopeGenerator.Common/Models/EnvelopeModel.vb

@@ -2,6 +2,7 @@
 Imports System.Web.UI.WebControls
 Imports DigitalData.Modules.Base
 Imports DigitalData.Modules.Logging
+Imports EnvelopeGenerator.Common.Constants
 
 Public Class EnvelopeModel
     Inherits BaseModel
@@ -34,7 +35,7 @@ Public Class EnvelopeModel
             .Language = pRow.ItemEx("LANGUAGE", "de-DE"),
             .Status = ObjectEx.ToEnum(Of Constants.EnvelopeStatus)(pRow.ItemEx("STATUS", Constants.EnvelopeStatus.EnvelopeCreated.ToString())),
             .AddedWhen = pRow.Item("ADDED_WHEN"),
-            .CertificationType = ObjectEx.ToEnum(Of Constants.CertificationType)(pRow.ItemEx("CERTIFICATION_TYPE", Constants.CertificationType.ElectronicSignature.ToString())),
+            .CertificationType = ObjectEx.ToEnum(Of Constants.CertificationType)(pRow.ItemEx("CERTIFICATION_TYPE", Constants.CertificationType.AdvancedElectronicSignature.ToString())),
             .User = New User(),
             .ExpiresWhen = pRow.ItemEx(Of Date)("EXPIRES_WHEN", Nothing),
             .ExpiresWarningWhen = pRow.ItemEx(Of Date)("EXPIRES_WARNING_WHEN", Nothing),
@@ -45,7 +46,8 @@ Public Class EnvelopeModel
             .ReminderIntervalDays = pRow.ItemEx("REMINDER_INTERVAL_DAYS", 0),
             .UseAccessCode = pRow.ItemEx("USE_ACCESS_CODE", False),
             .FinalEmailToCreator = ObjectEx.ToEnum(Of Constants.FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_CREATOR", Constants.FinalEmailType.No.ToString())),
-            .FinalEmailToReceivers = ObjectEx.ToEnum(Of Constants.FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_RECEIVERS", Constants.FinalEmailType.No.ToString()))
+            .FinalEmailToReceivers = ObjectEx.ToEnum(Of Constants.FinalEmailType)(pRow.ItemEx("FINAL_EMAIL_TO_RECEIVERS", Constants.FinalEmailType.No.ToString())),
+            .TFA_Enabled = pRow.ItemEx("TFA_Enabled", False)
         }
         Dim oDOC_RESULT = pRow.Item("DOC_RESULT")
         If Not IsDBNull(oDOC_RESULT) Then
@@ -142,13 +144,17 @@ Public Class EnvelopeModel
 
     Public Function Insert(pEnvelope As Envelope) As Boolean
         Try
-            Dim oSql = "INSERT INTO [dbo].[TBSIG_ENVELOPE] (MESSAGE, ENVELOPE_UUID, STATUS, USER_ID) "
-            oSql += " VALUES (@MESSAGE, @UUID, @STATUS, @USER_ID)"
+            Dim oSql = $"INSERT INTO [dbo].[TBSIG_ENVELOPE] (MESSAGE, ENVELOPE_UUID, STATUS, USER_ID) 
+            VALUES('', 
+                '{pEnvelope.Uuid}', 
+                '{CInt([Enum].Parse(GetType(EnvelopeStatus), Constants.EnvelopeStatus.EnvelopeCreated))}', 
+                '{pEnvelope.UserId}')"
             Dim oCommand As New SqlCommand(oSql)
-            oCommand.Parameters.Add("MESSAGE", SqlDbType.NVarChar).Value = String.Empty
-            oCommand.Parameters.Add("UUID", SqlDbType.NVarChar).Value = pEnvelope.Uuid
-            oCommand.Parameters.Add("STATUS", SqlDbType.Int).Value = Constants.EnvelopeStatus.EnvelopeCreated
-            oCommand.Parameters.Add("USER_ID", SqlDbType.Int).Value = pEnvelope.UserId
+            'oCommand.Parameters.Add("MESSAGE", SqlDbType.NVarChar).Value = String.Empty
+            'oCommand.Parameters.Add("UUID", SqlDbType.NVarChar).Value = pEnvelope.Uuid
+            'oCommand.Parameters.Add("STATUS", SqlDbType.Int).Value = Constants.EnvelopeStatus.EnvelopeCreated
+            'oCommand.Parameters.Add("USER_ID", SqlDbType.Int).Value = pEnvelope.UserId
+
 
             If Database.ExecuteNonQuery(oCommand) Then
                 pEnvelope.Id = GetEnvelopeId(pEnvelope)
@@ -182,9 +188,11 @@ Public Class EnvelopeModel
             oSql += " [REMINDER_INTERVAL_DAYS] = @REMINDER_INTERVAL_DAYS, "
             oSql += " [SEND_REMINDER_EMAILS] = @SEND_REMINDER_EMAILS, "
             oSql += " [USE_ACCESS_CODE] = @USE_ACCESS_CODE, "
-            oSql += " [CHANGED_WHEN] = GETDATE() "
+            oSql += " [CHANGED_WHEN] = GETDATE(), "
+            oSql += " [TFA_Enabled] = @TFA_Enabled"
             oSql += " WHERE GUID = @ID AND USER_ID = @USER_ID"
 
+
             Dim oCommand As New SqlCommand(oSql)
             oCommand.Parameters.Add("ID", SqlDbType.Int).Value = pEnvelope.Id
             oCommand.Parameters.Add("USER_ID", SqlDbType.Int).Value = pEnvelope.UserId
@@ -206,7 +214,7 @@ Public Class EnvelopeModel
             oCommand.Parameters.Add("REMINDER_INTERVAL_DAYS", SqlDbType.Int).Value = pEnvelope.ReminderIntervalDays
             oCommand.Parameters.Add("SEND_REMINDER_EMAILS", SqlDbType.Bit).Value = pEnvelope.SendReminderEmails
             oCommand.Parameters.Add("USE_ACCESS_CODE", SqlDbType.Bit).Value = pEnvelope.UseAccessCode
-
+            oCommand.Parameters.Add("TFA_ENABLED", SqlDbType.Bit).Value = pEnvelope.TFA_Enabled
             Return Database.ExecuteNonQuery(oCommand, pTransaction)
 
         Catch ex As Exception

EnvelopeGenerator.Common/Models/EnvelopeTypeModel.vb

@@ -1,4 +1,5 @@
 Imports DigitalData.Modules.Base
+Imports EnvelopeGenerator.Common.Constants
 
 Public Class EnvelopeTypeModel
     Inherits BaseModel
@@ -21,7 +22,8 @@ Public Class EnvelopeTypeModel
             .FinalEmailToCreator = pRow.ItemEx("FINAL_EMAIL_TO_CREATOR", 0),
             .FinalEmailToReceivers = pRow.ItemEx("FINAL_EMAIL_TO_RECEIVERS", 0),
             .ContractType = pRow.ItemEx("CONTRACT_TYPE", 0),
-            .CertificationType = pRow.ItemEx("CERTIFICATION_TYPE", 0)
+            .CertificationType = pRow.ItemEx("CERTIFICATION_TYPE", 0),
+            .TFA_Enabled = pRow.ItemEx("TFA_Enabled", 0)
         }
     End Function
 

EnvelopeGenerator.Common/Models/ReceiverModel.vb

@@ -33,7 +33,8 @@ Public Class ReceiverModel
             .Status = ReceiverSignedStatus,
             .ColorType = DirectCast(pColorIndex + 1, ColorType),
             .AccessCode = pRow.ItemEx("ACCESS_CODE", ""),
-            .SignedDate = SignedDate
+            .SignedDate = SignedDate,
+            .PhoneNumber = pRow.ItemEx("PHONE_NUMBER", "")
         }
     End Function
 
@@ -56,25 +57,29 @@ Public Class ReceiverModel
 
     Public Function Insert(pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
         Try
-            Dim oSql As String = "INSERT INTO [dbo].[TBSIG_RECEIVER]
+            Dim oCheck = $"SELECT COUNT(GUID) FROM [dbo].[TBSIG_RECEIVER] WHERE SIGNATURE = '{pReceiver.GetSignature()}'"
+            Dim oExists = Database.GetScalarValue(oCheck)
+
+            If oExists = 0 Then
+                Dim oSql As String = $"INSERT INTO [dbo].[TBSIG_RECEIVER]
                ([EMAIL_ADDRESS]
                ,[SIGNATURE])
              VALUES
-               (@EMAIL
-               ,@SIGNATURE)"
+               ('{pReceiver.Email}'
+               ,'{pReceiver.GetSignature()}')"
 
-            Dim oCommand = New SqlCommand(oSql)
-            oCommand.Parameters.Add("EMAIL", SqlDbType.NVarChar).Value = pReceiver.Email
-            oCommand.Parameters.Add("SIGNATURE", SqlDbType.NVarChar).Value = pReceiver.GetSignature()
-
-            Dim oResult = Database.ExecuteNonQuery(oCommand)
-            If oResult = True Then
-                pReceiver.Id = GetReceiverIdByEmail(pReceiver.Email, pTransaction)
+                Dim oCommand = New SqlCommand(oSql)
+                Dim oResult = Database.ExecuteNonQuery(oCommand)
+                If oResult = True Then
+                    pReceiver.Id = GetReceiverIdByEmail(pReceiver.Email, pTransaction)
+                    Return True
+                Else
+                    Return False
+                End If
             Else
-                Return False
+                Logger.Warn($"Receiver [{pReceiver.Email}] already existing! Check collecting not existing Receivers!")
+                Return True
             End If
-
-            Return True
         Catch ex As Exception
             Logger.Error(ex)
             Return False
@@ -83,18 +88,18 @@ Public Class ReceiverModel
 
     Public Function Update(pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
         Try
-            Dim oSql As String = "UPDATE [dbo].[TBSIG_USER_RECEIVER]
-                SET [NAME] = @NAME
-                  ,[COMPANY_NAME] = @COMPANY
-                  ,[JOB_TITLE] = @JOB
-             WHERE RECEIVER_ID = @RECEIVER_ID"
+            Dim oSql As String = $"UPDATE [dbo].[TBSIG_USER_RECEIVER]
+                SET [NAME] = '{pReceiver.Name}'
+                  ,[COMPANY_NAME] = '{pReceiver.Company}'
+                  ,[JOB_TITLE] = '{pReceiver.JobTitle}'
+             WHERE RECEIVER_ID = {pReceiver.Id}"
 
             Dim oCommand = New SqlCommand(oSql)
-            oCommand.Parameters.Add("NAME", SqlDbType.NVarChar).Value = pReceiver.Name
-            oCommand.Parameters.Add("COMPANY", SqlDbType.NVarChar).Value = pReceiver.Company
-            oCommand.Parameters.Add("JOB", SqlDbType.NVarChar).Value = pReceiver.JobTitle
-            oCommand.Parameters.Add("RECEIVER_ID", SqlDbType.Int).Value = pReceiver.Id
-            oCommand.Parameters.Add("USER_ID", SqlDbType.Int).Value = pReceiver.Id
+            'oCommand.Parameters.Add("NAME", SqlDbType.NVarChar).Value = pReceiver.Name
+            'oCommand.Parameters.Add("COMPANY", SqlDbType.NVarChar).Value = pReceiver.Company
+            'oCommand.Parameters.Add("JOB", SqlDbType.NVarChar).Value = pReceiver.JobTitle
+            'oCommand.Parameters.Add("RECEIVER_ID", SqlDbType.Int).Value = pReceiver.Id
+            'oCommand.Parameters.Add("USER_ID", SqlDbType.Int).Value = pReceiver.Id
 
             Return Database.ExecuteNonQuery(oCommand, pTransaction)
         Catch ex As Exception
@@ -113,7 +118,7 @@ Public Class ReceiverModel
     End Function
 
     Public Function Assign(pEnvelope As Envelope, pReceiver As EnvelopeReceiver, pTransaction As SqlTransaction) As Boolean
-        Dim oSql = "INSERT INTO [dbo].[TBSIG_ENVELOPE_RECEIVER]
+        Dim oSql = $"INSERT INTO [dbo].[TBSIG_ENVELOPE_RECEIVER]
                    ([ENVELOPE_ID]
                    ,[RECEIVER_ID]
                    ,[PRIVATE_MESSAGE]
@@ -121,26 +126,28 @@ Public Class ReceiverModel
                    ,[NAME]
                    ,[JOB_TITLE]
                    ,[COMPANY_NAME]
-                   ,[SEQUENCE])
+                   ,[SEQUENCE]
+                    ,[PHONE_NUMBER])
              VALUES
-                   (@ENVELOPE_ID
-                   ,@RECEIVER_ID
-                   ,@MESSAGE
-                   ,@ACCESS_CODE
-                   ,@NAME
-                   ,@JOB
-                   ,@COMPANY
-                   ,@SEQUENCE)"
+                   ('{pEnvelope.Id}'
+                   ,'{pReceiver.Id}'
+                   ,'{pReceiver.PrivateMessage}'
+                   ,'{pReceiver.AccessCode}'
+                   ,'{pReceiver.Name}'
+                   ,'{pReceiver.JobTitle}'
+                   ,'{pReceiver.Company}'
+                   ,'{pReceiver.Sequence}'
+                   ,'{pReceiver.PhoneNumber}')"
 
         Dim oCommand As New SqlCommand(oSql)
-        oCommand.Parameters.Add("ENVELOPE_ID", SqlDbType.NVarChar).Value = pEnvelope.Id
-        oCommand.Parameters.Add("RECEIVER_ID", SqlDbType.NVarChar).Value = pReceiver.Id
-        oCommand.Parameters.Add("MESSAGE", SqlDbType.NVarChar).Value = pReceiver.PrivateMessage
-        oCommand.Parameters.Add("ACCESS_CODE", SqlDbType.NVarChar).Value = pReceiver.AccessCode
-        oCommand.Parameters.Add("NAME", SqlDbType.NVarChar).Value = pReceiver.Name
-        oCommand.Parameters.Add("JOB", SqlDbType.NVarChar).Value = pReceiver.JobTitle
-        oCommand.Parameters.Add("COMPANY", SqlDbType.NVarChar).Value = pReceiver.Company
-        oCommand.Parameters.Add("SEQUENCE", SqlDbType.NVarChar).Value = pReceiver.Sequence
+        'oCommand.Parameters.Add("ENVELOPE_ID", SqlDbType.NVarChar).Value = pEnvelope.Id
+        'oCommand.Parameters.Add("RECEIVER_ID", SqlDbType.NVarChar).Value = pReceiver.Id
+        'oCommand.Parameters.Add("MESSAGE", SqlDbType.NVarChar).Value = pReceiver.PrivateMessage
+        'oCommand.Parameters.Add("ACCESS_CODE", SqlDbType.NVarChar).Value = pReceiver.AccessCode
+        'oCommand.Parameters.Add("NAME", SqlDbType.NVarChar).Value = pReceiver.Name
+        'oCommand.Parameters.Add("JOB", SqlDbType.NVarChar).Value = pReceiver.JobTitle
+        'oCommand.Parameters.Add("COMPANY", SqlDbType.NVarChar).Value = pReceiver.Company
+        'oCommand.Parameters.Add("SEQUENCE", SqlDbType.NVarChar).Value = pReceiver.Sequence
 
         Return Database.ExecuteNonQuery(oCommand, pTransaction)
     End Function
@@ -266,6 +273,22 @@ Public Class ReceiverModel
             Return String.Empty
         End Try
     End Function
+    Public Function GetLastUsedReceiverPhone(pEmailAddress As String, pUserId As Integer) As String
+        Try
+            Dim oSql As String
+            oSql = "SELECT TOP 1 [PHONE_NUMBER] FROM dbo.VWSIG_ENVELOPE_RECEIVERS "
+            oSql += $" WHERE ENV_USERID_CREATED  = {pUserId}) "
+            oSql += $" AND EMAIL_ADDRESS = '{pEmailAddress}' "
+            oSql += "  AND Len([PHONE_NUMBER]) > 0 "
+            oSql += " ORDER BY [ADDED_WHEN] DESC"
+
+            Return Database.GetScalarValue(oSql)
+
+        Catch ex As Exception
+            Logger.Error(ex)
+            Return String.Empty
+        End Try
+    End Function
 
     Private Function GetReceiverIdByEmail(pEmailAddress As String, pTransaction As SqlTransaction) As Integer
         Try

EnvelopeGenerator.Common/My Project/AssemblyInfo.vb

@@ -31,5 +31,5 @@ Imports System.Runtime.InteropServices
 ' indem Sie "*" wie unten gezeigt eingeben:
 ' <Assembly: AssemblyVersion("1.0.*")>
 
-<Assembly: AssemblyVersion("2.0.0.0")>
-<Assembly: AssemblyFileVersion("2.0.0.0")>
+<Assembly: AssemblyVersion("2.2.0.0")>
+<Assembly: AssemblyFileVersion("2.2.0.0")>

EnvelopeGenerator.Common/Strings/Envelope.en.resx

@@ -117,6 +117,9 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <data name="Dialog Concat PDF" xml:space="preserve">
+    <value>Please select the PDF documents you would like to link/concat:</value>
+  </data>
   <data name="Do you really want to delete this envelope" xml:space="preserve">
     <value>Do you really want to delete this envelope?</value>
   </data>
@@ -141,6 +144,12 @@
   <data name="Document forwarded" xml:space="preserve">
     <value>Document forwarded to receiver: {0}</value>
   </data>
+  <data name="Drop only one file" xml:space="preserve">
+    <value>Currently, only one PDF file is permitted via drag and drop.</value>
+  </data>
+  <data name="Drop only pdf" xml:space="preserve">
+    <value />
+  </data>
   <data name="Edit Envelope" xml:space="preserve">
     <value>Edit Envelope</value>
   </data>
@@ -171,6 +180,9 @@
   <data name="Error email Validation" xml:space="preserve">
     <value>The email  [ @Mail ] could not be varified!</value>
   </data>
+  <data name="Error phone Validation" xml:space="preserve">
+    <value />
+  </data>
   <data name="Error sending the envelope" xml:space="preserve">
     <value>Error sending the envelope:</value>
   </data>
@@ -193,7 +205,7 @@
     <value>Receiver {0} has an invalid Email Address.</value>
   </data>
   <data name="Invitation successfully resend" xml:space="preserve">
-    <value>Invitation has been send once again!</value>
+    <value>Invitation to [@Mail] has been send once again!</value>
   </data>
   <data name="Missing Documents" xml:space="preserve">
     <value>Missing Documents</value>

EnvelopeGenerator.Common/Strings/Envelope.resx

@@ -117,6 +117,9 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <data name="Dialog Concat PDF" xml:space="preserve">
+    <value>Bitte wählen Sie die PDF-Dokumente die Sie verketten möchten:</value>
+  </data>
   <data name="Do you really want to delete this envelope" xml:space="preserve">
     <value>Wollen Sie diesen Umschlag wirklich löschen?</value>
   </data>
@@ -141,6 +144,9 @@
   <data name="Document forwarded" xml:space="preserve">
     <value>Umschlag an Empfänger {0} weitergeleitet.</value>
   </data>
+  <data name="Drop only one file" xml:space="preserve">
+    <value>Aktuell ist per Drag and Drop nur eine PDF-Datei erlaubt.</value>
+  </data>
   <data name="Edit Envelope" xml:space="preserve">
     <value>Bearbeite Umschlag</value>
   </data>
@@ -171,6 +177,10 @@
   <data name="Error email Validation" xml:space="preserve">
     <value>Die Email-Adresse [ @Mail ] konnte nicht validiert werden!</value>
   </data>
+  <data name="Error phone Validation" xml:space="preserve">
+    <value>The mobile phone number [@PhoneNr] could not be validated. 
+Pattern: +491234567890</value>
+  </data>
   <data name="Error sending the envelope" xml:space="preserve">
     <value>Fehler beim Senden des Umschlags:</value>
   </data>
@@ -193,7 +203,7 @@
     <value>Empfänger {0} hat keine gültige Email Addresse.</value>
   </data>
   <data name="Invitation successfully resend" xml:space="preserve">
-    <value>Die Einladung wurde nochmal versendet!</value>
+    <value>Die Einladung an [@Mail] wurde nochmal versendet!</value>
   </data>
   <data name="Missing Documents" xml:space="preserve">
     <value>Fehlendes Dokument</value>

EnvelopeGenerator.Common/Strings/Envelope1.Designer.vb

@@ -64,6 +64,15 @@ Namespace My.Resources
             End Set
         End Property
         
+        '''<summary>
+        '''  Sucht eine lokalisierte Zeichenfolge, die Bitte wählen Sie die PDF-Dokumente die Sie verketten möchten: ähnelt.
+        '''</summary>
+        Public Shared ReadOnly Property Dialog_Concat_PDF() As String
+            Get
+                Return ResourceManager.GetString("Dialog Concat PDF", resourceCulture)
+            End Get
+        End Property
+        
         '''<summary>
         '''  Sucht eine lokalisierte Zeichenfolge, die Wollen Sie diesen Umschlag wirklich löschen? ähnelt.
         '''</summary>
@@ -136,6 +145,15 @@ Namespace My.Resources
             End Get
         End Property
         
+        '''<summary>
+        '''  Sucht eine lokalisierte Zeichenfolge, die Aktuell ist per Drag and Drop nur eine PDF-Datei erlaubt. ähnelt.
+        '''</summary>
+        Public Shared ReadOnly Property Drop_only_one_file() As String
+            Get
+                Return ResourceManager.GetString("Drop only one file", resourceCulture)
+            End Get
+        End Property
+        
         '''<summary>
         '''  Sucht eine lokalisierte Zeichenfolge, die Bearbeite Umschlag ähnelt.
         '''</summary>
@@ -226,6 +244,16 @@ Namespace My.Resources
             End Get
         End Property
         
+        '''<summary>
+        '''  Sucht eine lokalisierte Zeichenfolge, die The mobile phone number [@PhoneNr] could not be validated. 
+        '''Pattern: +491234567890 ähnelt.
+        '''</summary>
+        Public Shared ReadOnly Property Error_phone_Validation() As String
+            Get
+                Return ResourceManager.GetString("Error phone Validation", resourceCulture)
+            End Get
+        End Property
+        
         '''<summary>
         '''  Sucht eine lokalisierte Zeichenfolge, die Fehler beim Senden des Umschlags: ähnelt.
         '''</summary>
@@ -290,7 +318,7 @@ Namespace My.Resources
         End Property
         
         '''<summary>
-        '''  Sucht eine lokalisierte Zeichenfolge, die Die Einladung wurde nochmal versendet! ähnelt.
+        '''  Sucht eine lokalisierte Zeichenfolge, die Die Einladung an [@Mail] wurde nochmal versendet! ähnelt.
         '''</summary>
         Public Shared ReadOnly Property Invitation_successfully_resend() As String
             Get

EnvelopeGenerator.Common/Strings/Model.Designer.vb

@@ -91,6 +91,15 @@ Namespace My.Resources
             End Get
         End Property
         
+        '''<summary>
+        '''  Sucht eine lokalisierte Zeichenfolge, die Fortgeschrittene Elektronische Signatur ähnelt.
+        '''</summary>
+        Public Shared ReadOnly Property AdvancedElectronicSignature() As String
+            Get
+                Return ResourceManager.GetString("AdvancedElectronicSignature", resourceCulture)
+            End Get
+        End Property
+        
         '''<summary>
         '''  Sucht eine lokalisierte Zeichenfolge, die Abgeschlossen ähnelt.
         '''</summary>
@@ -154,15 +163,6 @@ Namespace My.Resources
             End Get
         End Property
         
-        '''<summary>
-        '''  Sucht eine lokalisierte Zeichenfolge, die Elektronische Signatur ähnelt.
-        '''</summary>
-        Public Shared ReadOnly Property ElectronicSignature() As String
-            Get
-                Return ResourceManager.GetString("ElectronicSignature", resourceCulture)
-            End Get
-        End Property
-        
         '''<summary>
         '''  Sucht eine lokalisierte Zeichenfolge, die Archiviert ähnelt.
         '''</summary>
@@ -306,16 +306,16 @@ Namespace My.Resources
                 Return ResourceManager.GetString("PartlySigned", resourceCulture)
             End Get
         End Property
-
-        ''''<summary>
-        ''''  Sucht eine lokalisierte Zeichenfolge, die Qualifizierte Signatur ähnelt.
-        ''''</summary>
-        'Public Shared ReadOnly Property QualifiedSignature() As String
-        '    Get
-        '        Return ResourceManager.GetString("QualifiedSignature", resourceCulture)
-        '    End Get
-        'End Property
-
+        
+        '''<summary>
+        '''  Sucht eine lokalisierte Zeichenfolge, die Qualifizierte Signatur ähnelt.
+        '''</summary>
+        Public Shared ReadOnly Property QualifiedSignature() As String
+            Get
+                Return ResourceManager.GetString("QualifiedSignature", resourceCulture)
+            End Get
+        End Property
+        
         '''<summary>
         '''  Sucht eine lokalisierte Zeichenfolge, die Arbeitsanweisung ähnelt.
         '''</summary>

EnvelopeGenerator.Common/Strings/Model.en.resx

@@ -126,6 +126,9 @@
   <data name="AccessCodeRequested" xml:space="preserve">
     <value>Accesscode requested</value>
   </data>
+  <data name="AdvancedElectronicSignature" xml:space="preserve">
+    <value>Advanced electronic signature</value>
+  </data>
   <data name="Completed" xml:space="preserve">
     <value>Completed</value>
   </data>
@@ -144,9 +147,6 @@
   <data name="Draft" xml:space="preserve">
     <value>Draft</value>
   </data>
-  <data name="ElectronicSignature" xml:space="preserve">
-    <value>Electronic Signature</value>
-  </data>
   <data name="EnvelopeArchived" xml:space="preserve">
     <value>Archived</value>
   </data>

EnvelopeGenerator.Common/Strings/Model.resx

@@ -126,6 +126,9 @@
   <data name="AccessCodeRequested" xml:space="preserve">
     <value>Zugriffscode angefordert</value>
   </data>
+  <data name="AdvancedElectronicSignature" xml:space="preserve">
+    <value>Fortgeschrittene Elektronische Signatur</value>
+  </data>
   <data name="Completed" xml:space="preserve">
     <value>Abgeschlossen</value>
   </data>
@@ -147,9 +150,6 @@
   <data name="Draft" xml:space="preserve">
     <value>Entwurf</value>
   </data>
-  <data name="ElectronicSignature" xml:space="preserve">
-    <value>Elektronische Signatur</value>
-  </data>
   <data name="EnvelopeArchived" xml:space="preserve">
     <value>Archiviert</value>
   </data>

EnvelopeGenerator.Common/packages.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="GdPicture" version="14.2.89" targetFramework="net462" />
-  <package id="GdPicture.runtimes.windows" version="14.2.89" targetFramework="net462" />
+  <package id="GdPicture" version="14.2.90" targetFramework="net462" />
+  <package id="GdPicture.runtimes.windows" version="14.2.90" targetFramework="net462" />
   <package id="Microsoft.Extensions.Logging.Abstractions" version="2.1.1" targetFramework="net462" />
   <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net462" />
   <package id="Quartz" version="3.8.0" targetFramework="net462" />

EnvelopeGenerator.Domain/Entities/Envelope.cs

@@ -84,6 +84,9 @@ namespace EnvelopeGenerator.Domain.Entities
         [Column("EXPIRES_WARNING_WHEN_DAYS")]
         public int? ExpiresWarningWhenDays { get; set; }
 
+        [Column("TFA_ENABLED", TypeName = "bit")]
+        public bool TFAEnabled { get; set; }
+
         /// <summary>
         /// The sender of envelope
         /// </summary>

EnvelopeGenerator.Domain/Entities/EnvelopeReceiverBase.cs

@@ -45,7 +45,7 @@ namespace EnvelopeGenerator.Domain.Entities
         [StringLength(20)]
         [RegularExpression(@"^\+[0-9]+$", ErrorMessage = "Phone number must start with '+' followed by digits.")]
         public string? PhoneNumber { get; set; }
-
+        
         [NotMapped]
         public (int Envelope, int Receiver) Id => (Envelope: EnvelopeId, Receiver: ReceiverId);
 

EnvelopeGenerator.Domain/Entities/Receiver.cs

@@ -2,28 +2,33 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 
-namespace EnvelopeGenerator.Domain.Entities
+namespace EnvelopeGenerator.Domain.Entities;
+
+[Table("TBSIG_RECEIVER", Schema = "dbo")]
+public class Receiver : IUnique<int>
 {
-    [Table("TBSIG_RECEIVER", Schema = "dbo")]
-    public class Receiver : IUnique<int>
-    {
-        [Key]
-        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
-        [Column("GUID")]
-        public int Id { get; set; }
-        
-        [Required, EmailAddress]
-        [Column("EMAIL_ADDRESS", TypeName = "nvarchar(128)")]
-        public required string EmailAddress { get; set; }
+    [Key]
+    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    [Column("GUID")]
+    public int Id { get; set; }
+    
+    [Required, EmailAddress]
+    [Column("EMAIL_ADDRESS", TypeName = "nvarchar(128)")]
+    public required string EmailAddress { get; set; }
 
-        [Required]
-        [Column("SIGNATURE", TypeName = "nvarchar(64)")]
-        public required string Signature { get; set; }
+    [Required]
+    [Column("SIGNATURE", TypeName = "nvarchar(64)")]
+    public required string Signature { get; set; }
 
-        [Required]
-        [Column("ADDED_WHEN", TypeName = "datetime")]
-        public DateTime AddedWhen { get; set; }
+    [Required]
+    [Column("ADDED_WHEN", TypeName = "datetime")]
+    public DateTime AddedWhen { get; set; }
 
-        public IEnumerable<EnvelopeReceiver>? EnvelopeReceivers { get; init; }
-    }
+    [Column("TOTP_SECRET_KEY", TypeName = "nvarchar(MAX)")]
+    public string? TotpSecretkey { get; set; }
+
+    [Column("TFA_REG_DEADLINE", TypeName = "datetime")]
+    public DateTime? TfaRegDeadline { get; set; }
+
+    public IEnumerable<EnvelopeReceiver>? EnvelopeReceivers { get; init; }
 }

EnvelopeGenerator.Extensions/EnvelopeGenerator.Extensions.csproj

@@ -10,6 +10,7 @@
     <PackageReference Include="HtmlSanitizer" Version="8.0.865" />
     <PackageReference Include="Microsoft.Extensions.Localization.Abstractions" Version="7.0.19" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="Otp.NET" Version="1.4.0" />
   </ItemGroup>
 
   <ItemGroup>

EnvelopeGenerator.Extensions/StringExtension.cs

@@ -0,0 +1,14 @@
+using OtpNet;
+
+namespace EnvelopeGenerator.Extensions
+{
+    public static class StringExtension
+    {
+        public static bool IsValidTotp(this string totp, string secret)
+        {
+            var secret_bytes = Base32Encoding.ToBytes(secret);
+            var secret_totp = new Totp(secret_bytes);
+            return secret_totp.VerifyTotp(totp, out _, VerificationWindow.RfcSpecifiedNetworkDelay);
+        }
+    }
+}

EnvelopeGenerator.Form/Controllers/EnvelopeEditorController.vb

@@ -65,7 +65,8 @@ Public Class EnvelopeEditorController
     Public Function CreateEnvelope() As Envelope
         Dim oEnvelope As New Envelope() With {
             .UserId = State.UserId,
-            .User = UserModel.SelectUser()
+            .User = UserModel.SelectUser(),
+            .TFA_Enabled = DEF_TF_ENABLED
         }
 
         If EnvelopeModel.Insert(oEnvelope) Then
@@ -87,11 +88,13 @@ Public Class EnvelopeEditorController
     Public Function SaveReceivers(pEnvelope As Envelope, pReceiversFromGrid As List(Of EnvelopeReceiver)) As Boolean
         Dim oExistingReceivers As List(Of EnvelopeReceiver) = ReceiverModel.ListReceivers(pReceiversFromGrid).ToList()
         Dim oExistingAddresses = oExistingReceivers.Select(Function(r) r.Email)
+        Logger.Debug($"oExistingReceivers.count: {oExistingReceivers.Count}")
+        Logger.Debug($"oExistingAddresses.count: {oExistingAddresses.Count}")
         Dim oNewReceivers = pReceiversFromGrid.Where(Function(r)
                                                          If r.Email Is Nothing Then Return False
                                                          Return Not oExistingAddresses.Contains(r.Email)
                                                      End Function).ToList()
-
+        Logger.Debug($"oNewReceivers.count: {oNewReceivers.Count}")
         If CreateNewReceivers(oNewReceivers) = False Then
             Return False
         End If
@@ -406,4 +409,11 @@ Public Class EnvelopeEditorController
             Return String.Empty
         End If
     End Function
+    Public Function GetLastPhoneByEmailAdress(pEmailAdress As String) As String
+        If (String.IsNullOrEmpty(pEmailAdress) = False) Then
+            Return ReceiverModel.GetLastUsedReceiverPhone(pEmailAdress, Envelope.UserId)
+        Else
+            Return String.Empty
+        End If
+    End Function
 End Class

EnvelopeGenerator.Form/EnvelopeGenerator.Form.vbproj

@@ -76,10 +76,10 @@
       <HintPath>..\..\2_DLL Projekte\DDMonorepo\Controls.DocumentViewer\bin\Debug\DigitalData.Controls.DocumentViewer.dll</HintPath>
     </Reference>
     <Reference Include="DigitalData.GUIs.Common">
-      <HintPath>..\..\DDMonorepo\GUIs.Common\bin\Debug\DigitalData.GUIs.Common.dll</HintPath>
+      <HintPath>..\..\2_DLL Projekte\DDMonorepo\GUIs.Common\bin\Debug\DigitalData.GUIs.Common.dll</HintPath>
     </Reference>
     <Reference Include="DigitalData.Modules.Base">
-      <HintPath>..\..\DDModules\Base\bin\Debug\DigitalData.Modules.Base.dll</HintPath>
+      <HintPath>..\..\2_DLL Projekte\DDModules\Base\bin\Debug\DigitalData.Modules.Base.dll</HintPath>
     </Reference>
     <Reference Include="DigitalData.Modules.Config, Version=1.2.2.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -107,6 +107,7 @@
       <HintPath>..\packages\NLog.5.0.5\lib\net46\NLog.dll</HintPath>
     </Reference>
     <Reference Include="System" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data.Linq" />
@@ -142,12 +143,6 @@
     <Compile Include="Controllers\EnvelopeListController.vb" />
     <Compile Include="Controllers\FieldEditorController.vb" />
     <Compile Include="Controllers\BaseController.vb" />
-    <Compile Include="frmChooseDocVariant.Designer.vb">
-      <DependentUpon>frmChooseDocVariant.vb</DependentUpon>
-    </Compile>
-    <Compile Include="frmChooseDocVariant.vb">
-      <SubType>Form</SubType>
-    </Compile>
     <Compile Include="frmEnvelopeEditor.vb">
       <SubType>Form</SubType>
     </Compile>
@@ -196,9 +191,6 @@
       <DesignTime>True</DesignTime>
     </Compile>
     <Compile Include="My Project\AssemblyInfo.vb" />
-    <EmbeddedResource Include="frmChooseDocVariant.resx">
-      <DependentUpon>frmChooseDocVariant.vb</DependentUpon>
-    </EmbeddedResource>
     <EmbeddedResource Include="frmEnvelopeEditor.en.resx">
       <DependentUpon>frmEnvelopeEditor.vb</DependentUpon>
       <SubType>Designer</SubType>
@@ -213,6 +205,7 @@
     </EmbeddedResource>
     <EmbeddedResource Include="frmEnvelopeMainData.resx">
       <DependentUpon>frmEnvelopeMainData.vb</DependentUpon>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
     <EmbeddedResource Include="frmFieldEditor.en.resx">
       <DependentUpon>frmFieldEditor.vb</DependentUpon>

EnvelopeGenerator.Form/ModuleSettings.vb

@@ -1,5 +1,6 @@
 Imports DigitalData.Modules.Database
 Imports DigitalData.Modules.Logging
+Imports EnvelopeGenerator.Common
 
 Module ModuleSettings
     Public ENVELOPE_TEMP_DOCUMENT As String = ""
@@ -7,4 +8,12 @@ Module ModuleSettings
     Public Directory2Delete As String = ""
     Public MS_GDPICTUREKEY As String = ""
     Public DB_DD_ECM As MSSQLServer = Nothing
+    Public DEF_TF_ENABLED As Boolean = False
+    Public MYUSER As User
+    Public MyTempFiles As TempFiles
+    Public SQL_REP_ENV_USER_LM As String = ""
+    Public SQL_REP_ENV_USER_TM As String = ""
+    Public SQL_REP_ENV_USER_Y As String = ""
+    Public SQL_REP_ENV_USER_ALL As String = ""
+    Public DT_CHARTS As DataTable
 End Module

EnvelopeGenerator.Form/frmChooseDocVariant.Designer.vb

@@ -1,75 +0,0 @@
-<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
-Partial Class frmChooseDocVariant
-    Inherits DevExpress.XtraEditors.XtraForm
-
-    'Das Formular überschreibt den Löschvorgang, um die Komponentenliste zu bereinigen.
-    <System.Diagnostics.DebuggerNonUserCode()> _
-    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
-        Try
-            If disposing AndAlso components IsNot Nothing Then
-                components.Dispose()
-            End If
-        Finally
-            MyBase.Dispose(disposing)
-        End Try
-    End Sub
-
-    'Wird vom Windows Form-Designer benötigt.
-    Private components As System.ComponentModel.IContainer
-
-    'Hinweis: Die folgende Prozedur ist für den Windows Form-Designer erforderlich.
-    'Das Bearbeiten ist mit dem Windows Form-Designer möglich.  
-    'Das Bearbeiten mit dem Code-Editor ist nicht möglich.
-    <System.Diagnostics.DebuggerStepThrough()> _
-    Private Sub InitializeComponent()
-        Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(frmChooseDocVariant))
-        Me.LabelControl1 = New DevExpress.XtraEditors.LabelControl()
-        Me.SimpleButton2 = New DevExpress.XtraEditors.SimpleButton()
-        Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog()
-        Me.SuspendLayout()
-        '
-        'LabelControl1
-        '
-        Me.LabelControl1.Appearance.Font = New System.Drawing.Font("Segoe UI", 9.75!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
-        Me.LabelControl1.Appearance.Options.UseFont = True
-        Me.LabelControl1.Location = New System.Drawing.Point(12, 26)
-        Me.LabelControl1.Name = "LabelControl1"
-        Me.LabelControl1.Size = New System.Drawing.Size(625, 17)
-        Me.LabelControl1.TabIndex = 2
-        Me.LabelControl1.Text = "In diesem Dialog wählen Sie die Dokumente aus, welche dann zu einem Dokument verk" &
-    "ettet werden!"
-        '
-        'SimpleButton2
-        '
-        Me.SimpleButton2.Appearance.Font = New System.Drawing.Font("Segoe UI", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
-        Me.SimpleButton2.Appearance.Options.UseFont = True
-        Me.SimpleButton2.ImageOptions.SvgImage = CType(resources.GetObject("SimpleButton2.ImageOptions.SvgImage"), DevExpress.Utils.Svg.SvgImage)
-        Me.SimpleButton2.Location = New System.Drawing.Point(142, 85)
-        Me.SimpleButton2.Name = "SimpleButton2"
-        Me.SimpleButton2.Size = New System.Drawing.Size(343, 50)
-        Me.SimpleButton2.TabIndex = 3
-        Me.SimpleButton2.Text = "Mehrere PDF auswählen und automatisch verketten"
-        '
-        'OpenFileDialog1
-        '
-        Me.OpenFileDialog1.FileName = "OpenFileDialog1"
-        Me.OpenFileDialog1.Filter = "PDF Files|*.pdf"
-        '
-        'frmChooseDocVariant
-        '
-        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
-        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
-        Me.ClientSize = New System.Drawing.Size(644, 189)
-        Me.Controls.Add(Me.SimpleButton2)
-        Me.Controls.Add(Me.LabelControl1)
-        Me.IconOptions.SvgImage = CType(resources.GetObject("frmChooseDocVariant.IconOptions.SvgImage"), DevExpress.Utils.Svg.SvgImage)
-        Me.Name = "frmChooseDocVariant"
-        Me.Text = "Mehrere Dokumente"
-        Me.ResumeLayout(False)
-        Me.PerformLayout()
-
-    End Sub
-    Friend WithEvents LabelControl1 As DevExpress.XtraEditors.LabelControl
-    Friend WithEvents SimpleButton2 As DevExpress.XtraEditors.SimpleButton
-    Friend WithEvents OpenFileDialog1 As OpenFileDialog
-End Class

EnvelopeGenerator.Form/frmChooseDocVariant.resx

@@ -1,179 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
-  <!-- 
-    Microsoft ResX Schema 
-    
-    Version 2.0
-    
-    The primary goals of this format is to allow a simple XML format 
-    that is mostly human readable. The generation and parsing of the 
-    various data types are done through the TypeConverter classes 
-    associated with the data types.
-    
-    Example:
-    
-    ... ado.net/XML headers & schema ...
-    <resheader name="resmimetype">text/microsoft-resx</resheader>
-    <resheader name="version">2.0</resheader>
-    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
-    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
-    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
-    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
-    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
-        <value>[base64 mime encoded serialized .NET Framework object]</value>
-    </data>
-    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
-        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
-        <comment>This is a comment</comment>
-    </data>
-                
-    There are any number of "resheader" rows that contain simple 
-    name/value pairs.
-    
-    Each data row contains a name, and value. The row also contains a 
-    type or mimetype. Type corresponds to a .NET class that support 
-    text/value conversion through the TypeConverter architecture. 
-    Classes that don't support this are serialized and stored with the 
-    mimetype set.
-    
-    The mimetype is used for serialized objects, and tells the 
-    ResXResourceReader how to depersist the object. This is currently not 
-    extensible. For a given mimetype the value must be set accordingly:
-    
-    Note - application/x-microsoft.net.object.binary.base64 is the format 
-    that the ResXResourceWriter will generate, however the reader can 
-    read any of the formats listed below.
-    
-    mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with 
-            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
-            : and then encoded with base64 encoding.
-    
-    mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with 
-            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
-            : and then encoded with base64 encoding.
-
-    mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array 
-            : using a System.ComponentModel.TypeConverter
-            : and then encoded with base64 encoding.
-    -->
-  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
-    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
-    <xsd:element name="root" msdata:IsDataSet="true">
-      <xsd:complexType>
-        <xsd:choice maxOccurs="unbounded">
-          <xsd:element name="metadata">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" />
-              </xsd:sequence>
-              <xsd:attribute name="name" use="required" type="xsd:string" />
-              <xsd:attribute name="type" type="xsd:string" />
-              <xsd:attribute name="mimetype" type="xsd:string" />
-              <xsd:attribute ref="xml:space" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="assembly">
-            <xsd:complexType>
-              <xsd:attribute name="alias" type="xsd:string" />
-              <xsd:attribute name="name" type="xsd:string" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="data">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
-                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
-              </xsd:sequence>
-              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
-              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
-              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
-              <xsd:attribute ref="xml:space" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="resheader">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
-              </xsd:sequence>
-              <xsd:attribute name="name" type="xsd:string" use="required" />
-            </xsd:complexType>
-          </xsd:element>
-        </xsd:choice>
-      </xsd:complexType>
-    </xsd:element>
-  </xsd:schema>
-  <resheader name="resmimetype">
-    <value>text/microsoft-resx</value>
-  </resheader>
-  <resheader name="version">
-    <value>2.0</value>
-  </resheader>
-  <resheader name="reader">
-    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
-  </resheader>
-  <resheader name="writer">
-    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
-  </resheader>
-  <assembly alias="DevExpress.Data.v21.2" name="DevExpress.Data.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
-  <data name="SimpleButton2.ImageOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
-    <value>
-        AAEAAAD/////AQAAAAAAAAAMAgAAAFlEZXZFeHByZXNzLkRhdGEudjIxLjIsIFZlcnNpb249MjEuMi40
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-        QmxhY2siIC8+DQogICAgPHBhdGggZD0iTTE5LjIsMTZjMC4zLDAuNSwwLjQsMS4xLDAuNCwxLjljMCww
-        LjktMC4yLDEuNS0wLjUsMmMtMC4zLDAuNS0wLjcsMC43LTEuMywwLjdoLTAuNnYtNS4zaDAuNiAgIEMx
-        OC40LDE1LjMsMTguOSwxNS42LDE5LjIsMTZ6IE0xMi4xLDE1LjNoLTAuNXYyLjZoMC41YzAuNywwLDEu
-        MS0wLjQsMS4xLTEuM2MwLTAuNC0wLjEtMC44LTAuMy0xQzEyLjYsMTUuNCwxMi40LDE1LjMsMTIuMSwx
-        NS4zeiAgICBNMzAsMTJ2MTJINlYxMkgzMHogTTE0LjgsMTYuNWMwLTAuOC0wLjItMS41LTAuNi0xLjlj
-        LTAuNC0wLjQtMS0wLjctMS44LTAuN0gxMHY4aDEuNnYtMi43aDAuNmMwLjgsMCwxLjQtMC4zLDEuOS0w
-        LjggICBDMTQuNSwxOCwxNC44LDE3LjMsMTQuOCwxNi41eiBNMjEuMiwxNy45YzAtMi42LTEuMS0zLjkt
-        My40LTMuOWgtMi4xdjhoMi4yYzEuMSwwLDEuOS0wLjQsMi41LTEuMUMyMC45LDIwLjIsMjEuMiwxOS4y
-        LDIxLjIsMTcuOXogICAgTTI2LDE0aC0zLjd2OGgxLjZ2LTMuMWgydi0xLjNoLTJ2LTIuMkgyNlYxNHoi
-        IGNsYXNzPSJSZWQiIC8+DQogIDwvZz4NCjwvc3ZnPgs=
-</value>
-  </data>
-  <metadata name="OpenFileDialog1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-    <value>17, 17</value>
-  </metadata>
-  <data name="frmChooseDocVariant.IconOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
-    <value>
-        AAEAAAD/////AQAAAAAAAAAMAgAAAFlEZXZFeHByZXNzLkRhdGEudjIxLjIsIFZlcnNpb249MjEuMi40
-        LjAsIEN1bHR1cmU9bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjg4ZDE3NTRkNzAwZTQ5YQUBAAAAHURl
-        dkV4cHJlc3MuVXRpbHMuU3ZnLlN2Z0ltYWdlAQAAAAREYXRhBwICAAAACQMAAAAPAwAAANYEAAAC77u/
-        PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0nVVRGLTgnPz4NCjxzdmcgeD0iMHB4IiB5PSIwcHgi
-        IHZpZXdCb3g9IjAgMCAzMiAzMiIgdmVyc2lvbj0iMS4xIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv
-        MjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB4bWw6c3Bh
-        Y2U9InByZXNlcnZlIiBpZD0iTG9naWNhbCIgc3R5bGU9ImVuYWJsZS1iYWNrZ3JvdW5kOm5ldyAwIDAg
-        MzIgMzIiPg0KICA8c3R5bGUgdHlwZT0idGV4dC9jc3MiPgoJLkJsdWV7ZmlsbDojMTE3N0Q3O30KPC9z
-        dHlsZT4NCiAgPHBhdGggZD0iTTUsNGgyM1YzYzAtMC42LTAuNC0xLTEtMUg1QzMuMywyLDIsMy4zLDIs
-        NXYyMmMwLDEuNywxLjMsMywzLDNoMjJjMC42LDAsMS0wLjQsMS0xVjZINUM0LjQsNiw0LDUuNiw0LDUg
-        IEM0LDQuNCw0LjQsNCw1LDR6IE0xNiwyNGgtMnYtMmgyVjI0eiBNMTEuNiwxNC40YzAuMi0wLjUsMC40
-        LTAuOSwwLjctMS4zYzAuMy0wLjQsMC43LTAuNiwxLjEtMC44YzAuNC0wLjIsMC45LTAuMywxLjUtMC4z
-        ICBjMC43LDAsMS4zLDAuMSwxLjgsMC4zYzAuNSwwLjIsMC45LDAuNSwxLjIsMC44YzAuMywwLjMsMC41
-        LDAuNywwLjYsMWMwLjEsMC40LDAuMiwwLjcsMC4yLDFjMCwwLjQsMCwwLjctMC4xLDEgIGMtMC4xLDAu
-        My0wLjIsMC41LTAuMywwLjhjLTAuMSwwLjItMC4zLDAuNC0wLjQsMC42Yy0wLjIsMC4yLTAuMywwLjMt
-        MC41LDAuNGMtMC4yLDAuMS0wLjMsMC4zLTAuNSwwLjRjLTAuMiwwLjEtMC4zLDAuMy0wLjQsMC40ICBj
-        LTAuMSwwLjEtMC4zLDAuMy0wLjQsMC41Yy0wLjEsMC4yLTAuMiwwLjQtMC4yLDAuNnYwLjZoLTJ2LTAu
-        N2MwLTAuNCwwLjEtMC43LDAuMS0wLjljMC4xLTAuMywwLjItMC41LDAuMy0wLjcgIGMwLjEtMC4yLDAu
-        My0wLjQsMC40LTAuNWMwLjEtMC4xLDAuMy0wLjMsMC40LTAuNHMwLjMtMC4zLDAuNC0wLjRjMC4xLTAu
-        MSwwLjItMC4yLDAuMy0wLjRjMC4xLTAuMSwwLjItMC4zLDAuMi0wLjUgIGMwLjEtMC4yLDAuMS0wLjQs
-        MC4xLTAuNmMwLTAuNS0wLjEtMC45LTAuMy0xLjFjLTAuMi0wLjItMC41LTAuNC0wLjktMC40Yy0wLjMs
-        MC0wLjUsMC4xLTAuNywwLjJjLTAuMiwwLjEtMC40LDAuMy0wLjUsMC41ICBjLTAuMSwwLjItMC4yLDAu
-        NC0wLjMsMC43Yy0wLjEsMC4yLTAuMSwwLjUtMC4xLDAuOGgtMi4yQzExLjQsMTUuNCwxMS40LDE0Ljks
-        MTEuNiwxNC40eiIgY2xhc3M9IkJsdWUiIC8+DQo8L3N2Zz4L
-</value>
-  </data>
-</root>

EnvelopeGenerator.Form/frmChooseDocVariant.vb

@@ -1,96 +0,0 @@
-Imports DevExpress.XtraSplashScreen
-Imports EnvelopeGenerator.Common
-Imports DigitalData.Modules.Logging
-Imports GdPicture14
-Public Class frmChooseDocVariant
-    Private TempFiles As TempFiles
-    Public Property State As State
-    Private Logger As Logger
-    Private Sub frmChooseDocVariant_Load(sender As Object, e As EventArgs) Handles Me.Load
-        ENVELOPE_TEMP_DOCUMENT = ""
-        TempFiles = New TempFiles(State.LogConfig)
-        TempFiles.Create()
-        Logger = State.LogConfig.GetLogger()
-    End Sub
-
-    Private Sub SimpleButton1_Click(sender As Object, e As EventArgs)
-        OpenFileDialog1.Multiselect = False
-        Dim oHandle = SplashScreenManager.ShowOverlayForm(Me)
-
-        Try
-            If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
-                ENVELOPE_TEMP_DOCUMENT = OpenFileDialog1.FileName
-            End If
-
-        Catch ex As Exception
-            Logger.Error(ex)
-        Finally
-            SplashScreenManager.CloseOverlayForm(oHandle)
-        End Try
-        ' Else
-        ' SplashScreenManager.CloseOverlayForm(oHandle)
-        ' End If
-    End Sub
-
-    Private Sub SimpleButton2_Click(sender As Object, e As EventArgs) Handles SimpleButton2.Click
-        OpenFileDialog1.Multiselect = True
-        Dim oHandle = SplashScreenManager.ShowOverlayForm(Me)
-        Try
-            Dim oErr As Boolean = False
-            If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
-                Dim oIDX As Integer = 0
-                For Each oFile As String In OpenFileDialog1.FileNames
-                    oIDX += 1
-                Next
-
-                Dim arPDF As GdPicturePDF() = New GdPicturePDF(oIDX) {}
-                oIDX = 0
-                For Each oFile As String In OpenFileDialog1.FileNames
-                    arPDF(oIDX) = New GdPicturePDF()
-                    If arPDF(oIDX).LoadFromFile(oFile) <> GdPictureStatus.OK Then
-                        MsgBox($"PDF Statsu of file {oFile} is not OK. Please check PDF-conformity!", MsgBoxStyle.Critical)
-                        oErr = True
-                        Exit For
-                    End If
-                    oIDX += 1
-                Next
-                If oErr = False Then
-
-                    Dim dstPDF As GdPicturePDF = arPDF(0).MergeDocuments(arPDF)
-                    Dim oStatus As GdPictureStatus = arPDF(0).GetStat()
-                    If oStatus = GdPictureStatus.OK Then
-                        MsgBox("All documents have been successfully merged.", MsgBoxStyle.Information)
-                        Dim oTempFolder = TempFiles.TempPath
-                        Dim oTempFilename = String.Concat(oTempFolder, "\", $"MergedDoc.pdf")
-                        If System.IO.File.Exists(oTempFilename) Then
-                            System.IO.File.Delete(oTempFilename)
-                        End If
-                        If dstPDF.SaveToFile(oTempFilename) = GdPictureStatus.OK Then
-                            MessageBox.Show("Merged document has been successfully saved.", "Example: MergeDocuments")
-                            ENVELOPE_TEMP_DOCUMENT = oTempFilename
-                            dstPDF.CloseDocument()
-                        End If
-                    Else
-                        MessageBox.Show("The MergeDocuments() method has failed with the status: " + oStatus.ToString(), "Example: MergeDocuments")
-                    End If
-                    dstPDF.Dispose()
-                    oIDX = 0
-                    For Each oFile As String In OpenFileDialog1.FileNames
-                        arPDF(oIDX).CloseDocument()
-                        oIDX += 1
-                    Next
-                End If
-
-            End If
-
-        Catch ex As Exception
-            Logger.Error(ex)
-        Finally
-            SplashScreenManager.CloseOverlayForm(oHandle)
-        End Try
-    End Sub
-
-    Private Sub LabelControl1_Click(sender As Object, e As EventArgs) Handles LabelControl1.Click
-
-    End Sub
-End Class

EnvelopeGenerator.Form/frmEnvelopeEditor.Designer.vb

@@ -56,16 +56,16 @@ Partial Public Class frmEnvelopeEditor
         Me.txtCreatorEmailLabel = New DevExpress.XtraBars.BarStaticItem()
         Me.txtEnvelopeIdLabel2 = New DevExpress.XtraBars.BarStaticItem()
         Me.BarButtonItem1 = New DevExpress.XtraBars.BarButtonItem()
-        Me.BarStaticItem1 = New DevExpress.XtraBars.BarStaticItem()
+        Me.bsitm_info = New DevExpress.XtraBars.BarStaticItem()
         Me.BarButtonItem2 = New DevExpress.XtraBars.BarButtonItem()
         Me.BarButtonItem3 = New DevExpress.XtraBars.BarButtonItem()
+        Me.bbtnitm_ConcatFiles = New DevExpress.XtraBars.BarButtonItem()
         Me.RibbonPage1 = New DevExpress.XtraBars.Ribbon.RibbonPage()
         Me.RibbonPageGroup1 = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonPageGroupDocuments = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonPageGroupInvitation = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonPageGroupAddSignature = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonPageGroupReceiver = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
-        Me.RibbonPageGroup2 = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonStatusBar1 = New DevExpress.XtraBars.Ribbon.RibbonStatusBar()
         Me.LayoutControlGroup4 = New DevExpress.XtraLayout.LayoutControlGroup()
         Me.LayoutControlGroup5 = New DevExpress.XtraLayout.LayoutControlGroup()
@@ -82,6 +82,7 @@ Partial Public Class frmEnvelopeEditor
         Me.RepositoryItemComboBox1 = New DevExpress.XtraEditors.Repository.RepositoryItemComboBox()
         Me.colName = New DevExpress.XtraGrid.Columns.GridColumn()
         Me.colAccessCode = New DevExpress.XtraGrid.Columns.GridColumn()
+        Me.colPhoneNumber = New DevExpress.XtraGrid.Columns.GridColumn()
         Me.RepositoryItemEmailEdit = New DevExpress.XtraEditors.Repository.RepositoryItemTextEdit()
         Me.RepositoryItemPictureEdit1 = New DevExpress.XtraEditors.Repository.RepositoryItemPictureEdit()
         Me.RepositoryItemColorPickEdit1 = New DevExpress.XtraEditors.Repository.RepositoryItemColorPickEdit()
@@ -100,7 +101,7 @@ Partial Public Class frmEnvelopeEditor
         Me.EnvelopeDocumentBindingSource = New System.Windows.Forms.BindingSource(Me.components)
         Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog()
         Me.txtEnvelopeIdLabel = New DevExpress.XtraBars.BarStaticItem()
-        Me.BarButtonItem4 = New DevExpress.XtraBars.BarButtonItem()
+        Me.btnShowFile = New DevExpress.XtraBars.BarButtonItem()
         CType(Me.SplitContainerControl1, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.SplitContainerControl1.Panel1, System.ComponentModel.ISupportInitialize).BeginInit()
         Me.SplitContainerControl1.Panel1.SuspendLayout()
@@ -243,9 +244,9 @@ Partial Public Class frmEnvelopeEditor
         'RibbonControl1
         '
         Me.RibbonControl1.ExpandCollapseItem.Id = 0
-        Me.RibbonControl1.Items.AddRange(New DevExpress.XtraBars.BarItem() {Me.RibbonControl1.ExpandCollapseItem, Me.RibbonControl1.SearchEditItem, Me.btnSave, Me.btnCancel, Me.btnNewFile, Me.btnDeleteFile, Me.btnSendEnvelope, Me.btnEditFields, Me.btnDeleteReceiver, Me.btnEditData, Me.txtCreatorEmailLabel, Me.txtEnvelopeIdLabel2, Me.BarButtonItem1, Me.BarStaticItem1, Me.BarButtonItem2, Me.BarButtonItem3, Me.BarButtonItem4})
+        Me.RibbonControl1.Items.AddRange(New DevExpress.XtraBars.BarItem() {Me.RibbonControl1.ExpandCollapseItem, Me.RibbonControl1.SearchEditItem, Me.btnSave, Me.btnCancel, Me.btnNewFile, Me.btnDeleteFile, Me.btnSendEnvelope, Me.btnEditFields, Me.btnDeleteReceiver, Me.btnEditData, Me.txtCreatorEmailLabel, Me.txtEnvelopeIdLabel2, Me.BarButtonItem1, Me.bsitm_info, Me.BarButtonItem2, Me.BarButtonItem3, Me.bbtnitm_ConcatFiles, Me.btnShowFile})
         resources.ApplyResources(Me.RibbonControl1, "RibbonControl1")
-        Me.RibbonControl1.MaxItemId = 17
+        Me.RibbonControl1.MaxItemId = 18
         Me.RibbonControl1.Name = "RibbonControl1"
         Me.RibbonControl1.Pages.AddRange(New DevExpress.XtraBars.Ribbon.RibbonPage() {Me.RibbonPage1})
         Me.RibbonControl1.ShowApplicationButton = DevExpress.Utils.DefaultBoolean.[False]
@@ -334,10 +335,10 @@ Partial Public Class frmEnvelopeEditor
         Me.BarButtonItem1.Id = 12
         Me.BarButtonItem1.Name = "BarButtonItem1"
         '
-        'BarStaticItem1
+        'bsitm_info
         '
-        Me.BarStaticItem1.Id = 13
-        Me.BarStaticItem1.Name = "BarStaticItem1"
+        Me.bsitm_info.Id = 13
+        Me.bsitm_info.Name = "bsitm_info"
         '
         'BarButtonItem2
         '
@@ -351,9 +352,16 @@ Partial Public Class frmEnvelopeEditor
         Me.BarButtonItem3.Id = 15
         Me.BarButtonItem3.Name = "BarButtonItem3"
         '
+        'bbtnitm_ConcatFiles
+        '
+        resources.ApplyResources(Me.bbtnitm_ConcatFiles, "bbtnitm_ConcatFiles")
+        Me.bbtnitm_ConcatFiles.Id = 16
+        Me.bbtnitm_ConcatFiles.ImageOptions.SvgImage = CType(resources.GetObject("bbtnitm_ConcatFiles.ImageOptions.SvgImage"), DevExpress.Utils.Svg.SvgImage)
+        Me.bbtnitm_ConcatFiles.Name = "bbtnitm_ConcatFiles"
+        '
         'RibbonPage1
         '
-        Me.RibbonPage1.Groups.AddRange(New DevExpress.XtraBars.Ribbon.RibbonPageGroup() {Me.RibbonPageGroup1, Me.RibbonPageGroupDocuments, Me.RibbonPageGroupInvitation, Me.RibbonPageGroupAddSignature, Me.RibbonPageGroupReceiver, Me.RibbonPageGroup2})
+        Me.RibbonPage1.Groups.AddRange(New DevExpress.XtraBars.Ribbon.RibbonPageGroup() {Me.RibbonPageGroup1, Me.RibbonPageGroupDocuments, Me.RibbonPageGroupInvitation, Me.RibbonPageGroupAddSignature, Me.RibbonPageGroupReceiver})
         Me.RibbonPage1.Name = "RibbonPage1"
         resources.ApplyResources(Me.RibbonPage1, "RibbonPage1")
         '
@@ -368,8 +376,9 @@ Partial Public Class frmEnvelopeEditor
         'RibbonPageGroupDocuments
         '
         Me.RibbonPageGroupDocuments.ItemLinks.Add(Me.btnNewFile)
-        Me.RibbonPageGroupDocuments.ItemLinks.Add(Me.BarButtonItem4)
+        Me.RibbonPageGroupDocuments.ItemLinks.Add(Me.bbtnitm_ConcatFiles)
         Me.RibbonPageGroupDocuments.ItemLinks.Add(Me.btnDeleteFile)
+        Me.RibbonPageGroupDocuments.ItemLinks.Add(Me.btnShowFile)
         Me.RibbonPageGroupDocuments.Name = "RibbonPageGroupDocuments"
         resources.ApplyResources(Me.RibbonPageGroupDocuments, "RibbonPageGroupDocuments")
         '
@@ -392,17 +401,11 @@ Partial Public Class frmEnvelopeEditor
         Me.RibbonPageGroupReceiver.Name = "RibbonPageGroupReceiver"
         resources.ApplyResources(Me.RibbonPageGroupReceiver, "RibbonPageGroupReceiver")
         '
-        'RibbonPageGroup2
-        '
-        Me.RibbonPageGroup2.ItemLinks.Add(Me.BarButtonItem3)
-        Me.RibbonPageGroup2.Name = "RibbonPageGroup2"
-        resources.ApplyResources(Me.RibbonPageGroup2, "RibbonPageGroup2")
-        '
         'RibbonStatusBar1
         '
         Me.RibbonStatusBar1.ItemLinks.Add(Me.txtCreatorEmailLabel)
         Me.RibbonStatusBar1.ItemLinks.Add(Me.txtEnvelopeIdLabel2)
-        Me.RibbonStatusBar1.ItemLinks.Add(Me.BarStaticItem1)
+        Me.RibbonStatusBar1.ItemLinks.Add(Me.bsitm_info)
         resources.ApplyResources(Me.RibbonStatusBar1, "RibbonStatusBar1")
         Me.RibbonStatusBar1.Name = "RibbonStatusBar1"
         Me.RibbonStatusBar1.Ribbon = Me.RibbonControl1
@@ -482,7 +485,7 @@ Partial Public Class frmEnvelopeEditor
         'ViewReceivers
         '
         Me.ViewReceivers.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.Simple
-        Me.ViewReceivers.Columns.AddRange(New DevExpress.XtraGrid.Columns.GridColumn() {Me.colColor, Me.colEmail, Me.colName, Me.colAccessCode})
+        Me.ViewReceivers.Columns.AddRange(New DevExpress.XtraGrid.Columns.GridColumn() {Me.colColor, Me.colEmail, Me.colName, Me.colAccessCode, Me.colPhoneNumber})
         Me.ViewReceivers.GridControl = Me.GridReceivers
         Me.ViewReceivers.Name = "ViewReceivers"
         Me.ViewReceivers.OptionsBehavior.AllowDeleteRows = DevExpress.Utils.DefaultBoolean.[True]
@@ -542,6 +545,12 @@ Partial Public Class frmEnvelopeEditor
         Me.colAccessCode.OptionsColumn.AllowEdit = False
         Me.colAccessCode.OptionsColumn.ReadOnly = True
         '
+        'colPhoneNumber
+        '
+        resources.ApplyResources(Me.colPhoneNumber, "colPhoneNumber")
+        Me.colPhoneNumber.FieldName = "PhoneNumber"
+        Me.colPhoneNumber.Name = "colPhoneNumber"
+        '
         'RepositoryItemEmailEdit
         '
         resources.ApplyResources(Me.RepositoryItemEmailEdit, "RepositoryItemEmailEdit")
@@ -675,15 +684,16 @@ Partial Public Class frmEnvelopeEditor
         Me.txtEnvelopeIdLabel.PaintStyle = DevExpress.XtraBars.BarItemPaintStyle.CaptionGlyph
         Me.txtEnvelopeIdLabel.Tag = "Envelope-ID: {0}"
         '
-        'BarButtonItem4
+        'btnShowFile
         '
-        resources.ApplyResources(Me.BarButtonItem4, "BarButtonItem4")
-        Me.BarButtonItem4.Id = 16
-        Me.BarButtonItem4.ImageOptions.SvgImage = CType(resources.GetObject("BarButtonItem4.ImageOptions.SvgImage"), DevExpress.Utils.Svg.SvgImage)
-        Me.BarButtonItem4.Name = "BarButtonItem4"
+        resources.ApplyResources(Me.btnShowFile, "btnShowFile")
+        Me.btnShowFile.Id = 17
+        Me.btnShowFile.ImageOptions.SvgImage = CType(resources.GetObject("BarButtonItem4.ImageOptions.SvgImage"), DevExpress.Utils.Svg.SvgImage)
+        Me.btnShowFile.Name = "btnShowFile"
         '
         'frmEnvelopeEditor
         '
+        Me.AllowDrop = True
         resources.ApplyResources(Me, "$this")
         Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
         Me.Controls.Add(Me.SplitContainerControl1)
@@ -804,11 +814,12 @@ Partial Public Class frmEnvelopeEditor
     Friend WithEvents txtEnvelopeIdLabel2 As DevExpress.XtraBars.BarStaticItem
     Friend WithEvents colPageCount As DevExpress.XtraGrid.Columns.TileViewColumn
     Friend WithEvents BarButtonItem1 As DevExpress.XtraBars.BarButtonItem
-    Friend WithEvents BarStaticItem1 As DevExpress.XtraBars.BarStaticItem
+    Friend WithEvents bsitm_info As DevExpress.XtraBars.BarStaticItem
     Friend WithEvents BarButtonItem2 As DevExpress.XtraBars.BarButtonItem
     Friend WithEvents BarButtonItem3 As DevExpress.XtraBars.BarButtonItem
-    Friend WithEvents RibbonPageGroup2 As DevExpress.XtraBars.Ribbon.RibbonPageGroup
-    Friend WithEvents BarButtonItem4 As DevExpress.XtraBars.BarButtonItem
+    Friend WithEvents bbtnitm_ConcatFiles As DevExpress.XtraBars.BarButtonItem
+    Friend WithEvents colPhoneNumber As DevExpress.XtraGrid.Columns.GridColumn
+    Friend WithEvents btnShowFile As DevExpress.XtraBars.BarButtonItem
 
 #End Region
 

EnvelopeGenerator.Form/frmEnvelopeEditor.resx

@@ -213,7 +213,7 @@
 </value>
   </data>
   <data name="btnNewFile.Caption" xml:space="preserve">
-    <value>Ein Dokument hinzufügen</value>
+    <value>Ein PDF-Dokument hinzufügen</value>
   </data>
   <data name="btnNewFile.ImageOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
@@ -322,35 +322,30 @@
 </value>
   </data>
   <data name="btnEditData.Caption" xml:space="preserve">
-    <value>Titel und Typ</value>
+    <value>Eigenschaften</value>
   </data>
   <data name="btnEditData.ImageOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         AAEAAAD/////AQAAAAAAAAAMAgAAAFlEZXZFeHByZXNzLkRhdGEudjIxLjIsIFZlcnNpb249MjEuMi40
         LjAsIEN1bHR1cmU9bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjg4ZDE3NTRkNzAwZTQ5YQUBAAAAHURl
-        dkV4cHJlc3MuVXRpbHMuU3ZnLlN2Z0ltYWdlAQAAAAREYXRhBwICAAAACQMAAAAPAwAAABwFAAAC77u/
+        dkV4cHJlc3MuVXRpbHMuU3ZnLlN2Z0ltYWdlAQAAAAREYXRhBwICAAAACQMAAAAPAwAAAOYDAAAC77u/
         PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0nVVRGLTgnPz4NCjxzdmcgeD0iMHB4IiB5PSIwcHgi
         IHZpZXdCb3g9IjAgMCAzMiAzMiIgdmVyc2lvbj0iMS4xIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv
         MjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB4bWw6c3Bh
-        Y2U9InByZXNlcnZlIiBpZD0iTGF5ZXJfMSIgc3R5bGU9ImVuYWJsZS1iYWNrZ3JvdW5kOm5ldyAwIDAg
-        MzIgMzIiPg0KICA8c3R5bGUgdHlwZT0idGV4dC9jc3MiPgoJLlllbGxvd3tmaWxsOiNGRkIxMTU7fQoJ
-        LlJlZHtmaWxsOiNEMTFDMUM7fQoJLkJsYWNre2ZpbGw6IzcyNzI3Mjt9CgkuQmx1ZXtmaWxsOiMxMTc3
-        RDc7fQoJLldoaXRle2ZpbGw6I0ZGRkZGRjt9CgkuR3JlZW57ZmlsbDojMDM5QzIzO30KCS5zdDB7b3Bh
-        Y2l0eTowLjc1O30KCS5zdDF7b3BhY2l0eTowLjU7fQoJLnN0MntvcGFjaXR5OjAuMjU7fQoJLnN0M3tm
-        aWxsOiNGRkIxMTU7fQo8L3N0eWxlPg0KICA8ZyAvPg0KICA8ZyBpZD0iUmVuYW1lXzFfIj4NCiAgICA8
-        cGF0aCBkPSJNMi4xLDE2aDIuMmwwLjYtMi4zaDMuMkw4LjgsMTZIMTFMNy44LDZINS40TDIuMSwxNnog
-        TTYuNCw4LjdjMC4xLTAuMywwLjEtMC42LDAuMS0wLjloMC4xICAgYzAsMC4zLDAuMSwwLjYsMC4xLDAu
-        OWwxLDMuM0g1LjRMNi40LDguN3ogTTE3LjUsMTAuNmMwLjYtMC4yLDEuMS0wLjUsMS41LTAuOWMwLjQt
-        MC40LDAuNi0wLjksMC42LTEuNGMwLTAuNy0wLjMtMS4zLTAuOS0xLjcgICBDMTguMSw2LjIsMTcuMSw2
-        LDE1LjksNkgxMnY5LjlWMTZoNGMxLjIsMCwyLjItMC4yLDIuOS0wLjhDMTkuNywxNC42LDIwLDE0LDIw
-        LDEzYzAtMC42LTAuMi0xLjItMC43LTEuNiAgIEMxOC45LDExLDE4LjMsMTAuNywxNy41LDEwLjZ6IE0x
-        NC40LDcuN2gwLjljMS4xLDAsMS43LDAuNCwxLjcsMS4xYzAsMC40LTAuMSwwLjctMC40LDAuOUMxNi40
-        LDkuOSwxNiwxMCwxNS41LDEwaC0xLjFWNy43eiAgICBNMTcsMTMuOGMtMC4zLDAuMi0wLjgsMC40LTEu
-        MywwLjRoLTEuM3YtMi42aDEuM2MwLjUsMCwwLjksMC4xLDEuMywwLjNjMC4zLDAuMiwwLjUsMC42LDAu
-        NSwwLjlDMTcuNSwxMy4zLDE3LjQsMTMuNiwxNywxMy44eiIgY2xhc3M9IkJsYWNrIiAvPg0KICAgIDxw
-        YXRoIGQ9Ik0yNywxOWwtOCw4bC00LTRsOC04TDI3LDE5eiBNMjgsMThsMS43LTEuN2MwLjQtMC40LDAu
-        NC0xLDAtMS4zTDI3LDEyLjNjLTAuNC0wLjQtMS0wLjQtMS4zLDBMMjQsMTRMMjgsMTh6ICAgIE0xNCwy
-        NHY0aDRMMTQsMjR6IiBjbGFzcz0iQmx1ZSIgLz4NCiAgPC9nPg0KPC9zdmc+Cw==
+        Y2U9InByZXNlcnZlIiBpZD0iRG9jdW1lbnRfUHJvcGVydGllcyIgc3R5bGU9ImVuYWJsZS1iYWNrZ3Jv
+        dW5kOm5ldyAwIDAgMzIgMzIiPg0KICA8c3R5bGUgdHlwZT0idGV4dC9jc3MiPgoJLkJsYWNre2ZpbGw6
+        IzcyNzI3Mjt9CgkuQmx1ZXtmaWxsOiMxMTc3RDc7fQo8L3N0eWxlPg0KICA8cGF0aCBkPSJNMzAsMjV2
+        LTJsLTIuMi0wLjRjLTAuMi0wLjYtMC40LTEuMy0wLjctMS44bDEuMy0xLjhsLTEuNC0xLjRsLTEuOCwx
+        LjNjLTAuNS0wLjMtMS4yLTAuNi0xLjgtMC43TDIzLDE2aC0yICBsLTAuNCwyLjJjLTAuNiwwLjItMS4z
+        LDAuNC0xLjgsMC43bC0xLjgtMS4zbC0xLjQsMS40bDEuMywxLjhjLTAuMywwLjUtMC42LDEuMi0wLjcs
+        MS44TDE0LDIzdjJsMi4yLDAuNGMwLjIsMC42LDAuNCwxLjMsMC43LDEuOCAgbC0xLjMsMS44bDEuNCwx
+        LjRsMS44LTEuM2MwLjUsMC4zLDEuMiwwLjYsMS44LDAuN0wyMSwzMmgybDAuNC0yLjJjMC42LTAuMiwx
+        LjMtMC40LDEuOC0wLjdsMS44LDEuM2wxLjQtMS40bC0xLjMtMS44ICBjMC4zLTAuNSwwLjYtMS4yLDAu
+        Ny0xLjhMMzAsMjV6IE0yMiwyNmMtMS4xLDAtMi0wLjktMi0yczAuOS0yLDItMnMyLDAuOSwyLDJTMjMu
+        MSwyNiwyMiwyNnoiIGNsYXNzPSJCbHVlIiAvPg0KICA8cGF0aCBkPSJNMTQuMywyNkg2VjRoNmg2djVj
+        MCwwLjYsMC40LDEsMSwxaDV2NS45bDAsMC40YzAuNywwLjIsMS40LDAuNSwyLDAuOFY5bC03LTdINUM0
+        LjQsMiw0LDIuNCw0LDN2MjQgIGMwLDAuNiwwLjQsMSwxLDFoMTAuMUMxNC43LDI3LjQsMTQuNCwyNi43
+        LDE0LjMsMjZ6IiBjbGFzcz0iQmxhY2siIC8+DQo8L3N2Zz4L
 </value>
   </data>
   <data name="txtCreatorEmailLabel.Caption" xml:space="preserve">
@@ -417,10 +412,10 @@
   <data name="BarButtonItem3.Caption" xml:space="preserve">
     <value>BarButtonItem3</value>
   </data>
-  <data name="BarButtonItem4.Caption" xml:space="preserve">
-    <value>Mehrere Dokumente hinzufügen</value>
+  <data name="bbtnitm_ConcatFiles.Caption" xml:space="preserve">
+    <value>Mehrere PDF-Dokumente verketten</value>
   </data>
-  <data name="BarButtonItem4.ImageOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
+  <data name="bbtnitm_ConcatFiles.ImageOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         AAEAAAD/////AQAAAAAAAAAMAgAAAFlEZXZFeHByZXNzLkRhdGEudjIxLjIsIFZlcnNpb249MjEuMi40
         LjAsIEN1bHR1cmU9bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjg4ZDE3NTRkNzAwZTQ5YQUBAAAAHURl
@@ -436,6 +431,36 @@
         LDguNSwzMS41LDgsMzEsOHogTTYsNXYxN0gyVjJoMTZ2Mkg3QzYuNSw0LDYsNC41LDYsNXogTTEyLDl2
         MTdIOFY2aDE2djJIMTMgIEMxMi41LDgsMTIsOC41LDEyLDl6IE0zMCwzMEgxNFYxMGgxNlYzMHoiIGNs
         YXNzPSJCbGFjayIgLz4NCjwvc3ZnPgs=
+</value>
+  </data>
+  <data name="btnShowFile.Caption" xml:space="preserve">
+    <value>Dokument anzeigen</value>
+  </data>
+  <data name="BarButtonItem4.ImageOptions.SvgImage" type="DevExpress.Utils.Svg.SvgImage, DevExpress.Data.v21.2" mimetype="application/x-microsoft.net.object.bytearray.base64">
+    <value>
+        AAEAAAD/////AQAAAAAAAAAMAgAAAFlEZXZFeHByZXNzLkRhdGEudjIxLjIsIFZlcnNpb249MjEuMi40
+        LjAsIEN1bHR1cmU9bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjg4ZDE3NTRkNzAwZTQ5YQUBAAAAHURl
+        dkV4cHJlc3MuVXRpbHMuU3ZnLlN2Z0ltYWdlAQAAAAREYXRhBwICAAAACQMAAAAPAwAAAJYEAAAC77u/
+        PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0nVVRGLTgnPz4NCjxzdmcgeD0iMHB4IiB5PSIwcHgi
+        IHZpZXdCb3g9IjAgMCAzMiAzMiIgdmVyc2lvbj0iMS4xIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv
+        MjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB4bWw6c3Bh
+        Y2U9InByZXNlcnZlIiBpZD0iTGF5ZXJfMSIgc3R5bGU9ImVuYWJsZS1iYWNrZ3JvdW5kOm5ldyAwIDAg
+        MzIgMzIiPg0KICA8c3R5bGUgdHlwZT0idGV4dC9jc3MiPgoJLlllbGxvd3tmaWxsOiNGRkIxMTU7fQoJ
+        LlJlZHtmaWxsOiNEMTFDMUM7fQoJLkJsdWV7ZmlsbDojMTE3N0Q3O30KCS5HcmVlbntmaWxsOiMwMzlD
+        MjM7fQoJLkJsYWNre2ZpbGw6IzcyNzI3Mjt9CgkuV2hpdGV7ZmlsbDojRkZGRkZGO30KCS5zdDB7b3Bh
+        Y2l0eTowLjc1O30KPC9zdHlsZT4NCiAgPGcgaWQ9IkRvY3VtZW50UERGIj4NCiAgICA8cGF0aCBkPSJN
+        MjIsMjR2NEgyVjJoMTR2NWMwLDAuNiwwLjQsMSwxLDFoNXY0aDJWN2wtNy03SDFDMC40LDAsMCwwLjQs
+        MCwxdjI4YzAsMC42LDAuNCwxLDEsMWgyMmMwLjYsMCwxLTAuNCwxLTEgICB2LTVIMjJ6IiBjbGFzcz0i
+        QmxhY2siIC8+DQogICAgPHBhdGggZD0iTTE5LjIsMTZjMC4zLDAuNSwwLjQsMS4xLDAuNCwxLjljMCww
+        LjktMC4yLDEuNS0wLjUsMmMtMC4zLDAuNS0wLjcsMC43LTEuMywwLjdoLTAuNnYtNS4zaDAuNiAgIEMx
+        OC40LDE1LjMsMTguOSwxNS42LDE5LjIsMTZ6IE0xMi4xLDE1LjNoLTAuNXYyLjZoMC41YzAuNywwLDEu
+        MS0wLjQsMS4xLTEuM2MwLTAuNC0wLjEtMC44LTAuMy0xQzEyLjYsMTUuNCwxMi40LDE1LjMsMTIuMSwx
+        NS4zeiAgICBNMzAsMTJ2MTJINlYxMkgzMHogTTE0LjgsMTYuNWMwLTAuOC0wLjItMS41LTAuNi0xLjlj
+        LTAuNC0wLjQtMS0wLjctMS44LTAuN0gxMHY4aDEuNnYtMi43aDAuNmMwLjgsMCwxLjQtMC4zLDEuOS0w
+        LjggICBDMTQuNSwxOCwxNC44LDE3LjMsMTQuOCwxNi41eiBNMjEuMiwxNy45YzAtMi42LTEuMS0zLjkt
+        My40LTMuOWgtMi4xdjhoMi4yYzEuMSwwLDEuOS0wLjQsMi41LTEuMUMyMC45LDIwLjIsMjEuMiwxOS4y
+        LDIxLjIsMTcuOXogICAgTTI2LDE0aC0zLjd2OGgxLjZ2LTMuMWgydi0xLjNoLTJ2LTIuMkgyNlYxNHoi
+        IGNsYXNzPSJSZWQiIC8+DQogIDwvZz4NCjwvc3ZnPgs=
 </value>
   </data>
   <data name="RibbonControl1.Location" type="System.Drawing.Point, System.Drawing">
@@ -445,7 +470,7 @@
     <value>Umschlag</value>
   </data>
   <data name="RibbonPageGroupDocuments.Text" xml:space="preserve">
-    <value>Dateien</value>
+    <value>Dokument-Funktionen</value>
   </data>
   <data name="RibbonPageGroupInvitation.Text" xml:space="preserve">
     <value>Prozess</value>
@@ -456,9 +481,6 @@
   <data name="RibbonPageGroupReceiver.Text" xml:space="preserve">
     <value>Empfänger</value>
   </data>
-  <data name="RibbonPageGroup2.Text" xml:space="preserve">
-    <value>RibbonPageGroup2</value>
-  </data>
   <data name="RibbonPage1.Text" xml:space="preserve">
     <value>Start</value>
   </data>
@@ -605,7 +627,7 @@
     <value>0</value>
   </data>
   <data name="colColor.Width" type="System.Int32, mscorlib">
-    <value>37</value>
+    <value>32</value>
   </data>
   <data name="RepositoryItemComboBox1.AutoHeight" type="System.Boolean, mscorlib">
     <value>False</value>
@@ -620,7 +642,7 @@
     <value>1</value>
   </data>
   <data name="colEmail.Width" type="System.Int32, mscorlib">
-    <value>341</value>
+    <value>275</value>
   </data>
   <data name="colName.Caption" xml:space="preserve">
     <value>Anrede Email</value>
@@ -632,7 +654,7 @@
     <value>2</value>
   </data>
   <data name="colName.Width" type="System.Int32, mscorlib">
-    <value>344</value>
+    <value>227</value>
   </data>
   <data name="colAccessCode.Caption" xml:space="preserve">
     <value>Zugriffscode</value>
@@ -644,7 +666,19 @@
     <value>3</value>
   </data>
   <data name="colAccessCode.Width" type="System.Int32, mscorlib">
-    <value>147</value>
+    <value>109</value>
+  </data>
+  <data name="colPhoneNumber.Caption" xml:space="preserve">
+    <value>Mobilnummer</value>
+  </data>
+  <data name="colPhoneNumber.Visible" type="System.Boolean, mscorlib">
+    <value>True</value>
+  </data>
+  <data name="colPhoneNumber.VisibleIndex" type="System.Int32, mscorlib">
+    <value>4</value>
+  </data>
+  <data name="colPhoneNumber.Width" type="System.Int32, mscorlib">
+    <value>226</value>
   </data>
   <data name="RepositoryItemEmailEdit.AutoHeight" type="System.Boolean, mscorlib">
     <value>False</value>
@@ -1073,10 +1107,10 @@
   <data name="&gt;&gt;BarButtonItem1.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.BarButtonItem, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
-  <data name="&gt;&gt;BarStaticItem1.Name" xml:space="preserve">
-    <value>BarStaticItem1</value>
+  <data name="&gt;&gt;bsitm_info.Name" xml:space="preserve">
+    <value>bsitm_info</value>
   </data>
-  <data name="&gt;&gt;BarStaticItem1.Type" xml:space="preserve">
+  <data name="&gt;&gt;bsitm_info.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.BarStaticItem, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
   <data name="&gt;&gt;BarButtonItem2.Name" xml:space="preserve">
@@ -1091,10 +1125,10 @@
   <data name="&gt;&gt;BarButtonItem3.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.BarButtonItem, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
-  <data name="&gt;&gt;BarButtonItem4.Name" xml:space="preserve">
-    <value>BarButtonItem4</value>
+  <data name="&gt;&gt;bbtnitm_ConcatFiles.Name" xml:space="preserve">
+    <value>bbtnitm_ConcatFiles</value>
   </data>
-  <data name="&gt;&gt;BarButtonItem4.Type" xml:space="preserve">
+  <data name="&gt;&gt;bbtnitm_ConcatFiles.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.BarButtonItem, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
   <data name="&gt;&gt;RibbonPage1.Name" xml:space="preserve">
@@ -1133,12 +1167,6 @@
   <data name="&gt;&gt;RibbonPageGroupReceiver.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.Ribbon.RibbonPageGroup, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
-  <data name="&gt;&gt;RibbonPageGroup2.Name" xml:space="preserve">
-    <value>RibbonPageGroup2</value>
-  </data>
-  <data name="&gt;&gt;RibbonPageGroup2.Type" xml:space="preserve">
-    <value>DevExpress.XtraBars.Ribbon.RibbonPageGroup, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
-  </data>
   <data name="&gt;&gt;LayoutControlGroup4.Name" xml:space="preserve">
     <value>LayoutControlGroup4</value>
   </data>
@@ -1205,6 +1233,12 @@
   <data name="&gt;&gt;colAccessCode.Type" xml:space="preserve">
     <value>DevExpress.XtraGrid.Columns.GridColumn, DevExpress.XtraGrid.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
+  <data name="&gt;&gt;colPhoneNumber.Name" xml:space="preserve">
+    <value>colPhoneNumber</value>
+  </data>
+  <data name="&gt;&gt;colPhoneNumber.Type" xml:space="preserve">
+    <value>DevExpress.XtraGrid.Columns.GridColumn, DevExpress.XtraGrid.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
   <data name="&gt;&gt;RepositoryItemEmailEdit.Name" xml:space="preserve">
     <value>RepositoryItemEmailEdit</value>
   </data>
@@ -1295,6 +1329,12 @@
   <data name="&gt;&gt;txtEnvelopeIdLabel.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.BarStaticItem, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
+  <data name="&gt;&gt;btnShowFile.Name" xml:space="preserve">
+    <value>btnShowFile</value>
+  </data>
+  <data name="&gt;&gt;btnShowFile.Type" xml:space="preserve">
+    <value>DevExpress.XtraBars.BarButtonItem, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
   <data name="&gt;&gt;$this.Name" xml:space="preserve">
     <value>frmEnvelopeEditor</value>
   </data>

EnvelopeGenerator.Form/frmEnvelopeEditor.vb

@@ -1,6 +1,7 @@
 Imports System.ComponentModel
 Imports System.Data.SqlClient
 Imports System.IO
+Imports System.Text.RegularExpressions
 Imports DevExpress.Export.Xl
 Imports DevExpress.Utils.CommonDialogs
 Imports DevExpress.Utils.Drawing
@@ -17,6 +18,7 @@ Imports DigitalData.Modules.Logging
 Imports EnvelopeGenerator.Common
 Imports EnvelopeGenerator.Common.Constants
 Imports EnvelopeGenerator.Common.My
+Imports GdPicture14
 
 Partial Public Class frmEnvelopeEditor
     Public Property Envelope As Envelope
@@ -31,7 +33,7 @@ Partial Public Class frmEnvelopeEditor
     Private Const COL_NAME = "Name"
     Private Const COL_EMAIL = "Email"
     Private Const COL_CODE = "AccessCode"
-
+    Private Const COL_PHONE = "PhoneNumber"
     Public Property State As State
     Private TempFiles As TempFiles
 
@@ -51,14 +53,7 @@ Partial Public Class frmEnvelopeEditor
             End If
 
             If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
-                Dim oDocument = Await Controller.CreateDocument(OpenFileDialog1.FileName)
-
-                If oDocument IsNot Nothing Then
-                    Documents.Add(oDocument)
-                    ' Update_File_DB(OpenFileDialog1.FileName)
-                Else
-                    MsgBox(Resources.Envelope.Document_Could_Not_Be_Saved, MsgBoxStyle.Critical, Text)
-                End If
+                Await AddDocument(OpenFileDialog1.FileName)
             End If
 
         Catch ex As Exception
@@ -73,15 +68,31 @@ Partial Public Class frmEnvelopeEditor
         ' End If
 
     End Sub
+    Private Async Function AddDocument(pfilePath As String) As Threading.Tasks.Task(Of Boolean)
+        Dim oDocument = Await Controller.CreateDocument(pfilePath)
+
+        If oDocument IsNot Nothing Then
+            Documents.Add(oDocument)
+            ' Update_File_DB(OpenFileDialog1.FileName)
+            ClearBsiItem()
+            Return True
+        Else
+            MsgBox(Resources.Envelope.Document_Could_Not_Be_Saved, MsgBoxStyle.Critical, Text)
+            Return False
+        End If
+
+    End Function
     Private Sub frmEditor_Load(sender As Object, e As EventArgs) Handles Me.Load
         Logger = State.LogConfig.GetLogger()
         Logger.Debug("Loading Configuration..")
         TempFiles = New TempFiles(State.LogConfig)
         TempFiles.Create()
         If Envelope Is Nothing Then
+            Logger.Debug("Loading Controller..")
             Controller = New EnvelopeEditorController(State)
 
             ' Get additional data
+            Logger.Debug("Loading oDataForm..")
             Dim oDataForm As New frmEnvelopeMainData() With {
                 .State = State,
                 .Envelope = Controller.Envelope,
@@ -116,6 +127,7 @@ Partial Public Class frmEnvelopeEditor
                     End If
                     WriteBytetoPath(oTempFilename, docItem.Byte_Data)
                     docItem.Filepath = oTempFilename
+                    GridDocuments.Tag = docItem.Filepath
                 End If
                 If docItem.Thumbnail Is Nothing Then
                     docItem.Thumbnail = Controller.CreateThumbnail(docItem.Filepath)
@@ -139,7 +151,7 @@ Partial Public Class frmEnvelopeEditor
         RepositoryItemComboBox1.Items.AddRange(AllReceiverEmails)
 
         SetAccessCodeColumnVisible()
-
+        SetPhoneNumberColumnVisible()
         txtEnvelopeIdLabel2.Caption = String.Format(txtEnvelopeIdLabel2.Tag.ToString, Controller.Envelope.Id)
         txtCreatorEmailLabel.Caption = String.Format(txtCreatorEmailLabel.Tag.ToString, Controller.Envelope.User.Email)
 
@@ -153,6 +165,13 @@ Partial Public Class frmEnvelopeEditor
             colAccessCode.Visible = False
         End If
     End Sub
+    Private Sub SetPhoneNumberColumnVisible()
+        If Envelope.TFA_Enabled = True Then
+            colPhoneNumber.Visible = True
+        Else
+            colPhoneNumber.Visible = False
+        End If
+    End Sub
 
     Private Sub btnDeleteFile_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnDeleteFile.ItemClick
         If ViewDocuments.GetSelectedRows().Count > 0 Then
@@ -166,14 +185,18 @@ Partial Public Class frmEnvelopeEditor
             If Controller.DeleteDocument(oDocument) Then
                 Documents.Remove(oDocument)
                 GridDocuments.DataSource = Nothing
-
+                ClearBsiItem()
             End If
         End If
     End Sub
 
     Private Sub btnSave_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnSave.ItemClick
         Try
-            SaveEnvelopeWithOutValidation()
+            If SaveEnvelopeWithOutValidation() = True Then
+                bsitm_info.Caption = "Data saved succeddfully " + Now.ToString
+            Else
+                bsitm_info.Caption = "Exceprion - Error saving Data. Check LOG"
+            End If
         Catch ex As Exception
             Logger.Error(ex)
         End Try
@@ -439,7 +462,7 @@ Partial Public Class frmEnvelopeEditor
         oForm.ShowDialog()
 
         SetAccessCodeColumnVisible()
-
+        SetPhoneNumberColumnVisible()
         SetFormTitle(Controller.Envelope.Title)
     End Sub
 
@@ -491,10 +514,14 @@ Partial Public Class frmEnvelopeEditor
     Private Sub DocumentButtons_Enable()
         If ViewDocuments.RowCount = 0 Then
             btnNewFile.Enabled = True
+            bbtnitm_ConcatFiles.Enabled = True
             btnDeleteFile.Enabled = False
+            btnShowFile.Enabled = False
         Else
             btnNewFile.Enabled = False
+            bbtnitm_ConcatFiles.Enabled = False
             btnDeleteFile.Enabled = True
+            btnShowFile.Enabled = True
         End If
     End Sub
 
@@ -555,25 +582,35 @@ Partial Public Class frmEnvelopeEditor
                     If IsValidEmailAddress(oEmailAdress) = True Then
                         Dim oLastName As String = Controller.GetLastNameByEmailAdress(oEmailAdress)
                         Dim oAccessCode As String = Helpers.GetAccessCode()
+                        Dim oPhoneNumber As String = Controller.GetLastPhoneByEmailAdress(oEmailAdress)
                         ViewReceivers.SetRowCellValue(e.RowHandle, ViewReceivers.Columns.Item(COL_EMAIL), oEmailAdress)
                         ViewReceivers.SetRowCellValue(e.RowHandle, ViewReceivers.Columns.Item(COL_NAME), oLastName)
                         ViewReceivers.SetRowCellValue(e.RowHandle, ViewReceivers.Columns.Item(COL_CODE), oAccessCode)
-                        CellValueChanged = False
+                        ViewReceivers.SetRowCellValue(e.RowHandle, ViewReceivers.Columns.Item(COL_PHONE), oPhoneNumber)
                     Else
                         Dim oMsg = Resources.Envelope.Error_email_Validation
                         oMsg = oMsg.Replace("@Mail", oEmailAdress)
                         MsgBox(oMsg, MsgBoxStyle.Exclamation, Text)
                         ViewReceivers.DeleteRow(ViewReceivers.FocusedRowHandle)
                     End If
-
+                    CellValueChanged = False
                 End If
             End If
+        ElseIf e.Column.FieldName = COL_PHONE And CellValueChanged = False Then
+            CellValueChanged = True
+            Dim oPhoneNumber As String = DirectCast(e.Value.ToString.ToLower, String)
+            oPhoneNumber = Trim(oPhoneNumber)
+            If IsValidMobilePhoneNumber(oPhoneNumber) = True Then
+                ViewReceivers.SetRowCellValue(e.RowHandle, ViewReceivers.Columns.Item(COL_PHONE), oPhoneNumber)
+            Else
+                Dim oMsg = Resources.Envelope.Error_phone_Validation
+                oMsg = oMsg.Replace("@PhoneNr", oPhoneNumber)
+                MsgBox(oMsg, MsgBoxStyle.Exclamation, Text)
+                ViewReceivers.DeleteRow(ViewReceivers.FocusedRowHandle)
+            End If
+            CellValueChanged = False
         End If
     End Sub
-    Private Sub email_validation()
-
-    End Sub
-
     Private Function IsValidEmailAddress(pEmailAddress As String) As Boolean
         Try
             If pEmailAddress.Contains("@") Then
@@ -587,21 +624,150 @@ Partial Public Class frmEnvelopeEditor
             Return False
         End Try
     End Function
+    Private Function IsValidMobilePhoneNumber(pPhoneNumber As String) As Boolean
+        Try
+            Dim pattern As String = "^\+49\d{10,14}$"
+            Dim regex As New Regex(pattern)
+            Return regex.IsMatch(pPhoneNumber)
+
+        Catch ex As Exception
+            Logger.Error(ex)
+            Return False
+        End Try
+    End Function
     Private Sub RibbonControl1_Click(sender As Object, e As EventArgs) Handles RibbonControl1.Click
 
     End Sub
+    Private Async Sub bbtnitm_ConcatFiles_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles bbtnitm_ConcatFiles.ItemClick
+        ENVELOPE_TEMP_DOCUMENT = String.Empty
+        OpenFileDialog1.Multiselect = True
+        OpenFileDialog1.Title = Resources.Envelope.Dialog_Concat_PDF
+        Dim oSuccess As Boolean = False
+        Dim oHandle = SplashScreenManager.ShowOverlayForm(Me)
+        Try
+            Dim oErr As Boolean = False
+            If OpenFileDialog1.ShowDialog() = DialogResult.OK Then
+                Dim oIDX As Integer = -1
+                For Each oFile As String In OpenFileDialog1.FileNames
+                    oIDX += 1
+                Next
 
-    Private Sub BarButtonItem3_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles BarButtonItem3.ItemClick
-        frmChooseDocVariant.ShowDialog()
-    End Sub
+                Dim arPDF As GdPicturePDF() = New GdPicturePDF(oIDX) {}
+                oIDX = 0
+                For Each oFile As String In OpenFileDialog1.FileNames
+                    arPDF(oIDX) = New GdPicturePDF()
+                    If arPDF(oIDX).LoadFromFile(oFile) <> GdPictureStatus.OK Then
+                        MsgBox($"PDF Status of file {oFile} is not OK. Please check PDF-conformity!", MsgBoxStyle.Critical)
+                        oErr = True
+                        Exit For
+                    End If
+                    oIDX += 1
+                Next
+                If oErr = False Then
 
-    Private Sub BarButtonItem4_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles BarButtonItem4.ItemClick
+                    Dim dstPDF As GdPicturePDF = arPDF(0).MergeDocuments(arPDF)
+                    Dim oStatus As GdPictureStatus = arPDF(0).GetStat()
+                    If oStatus = GdPictureStatus.OK Then
+                        Dim oTempFolder = MyTempFiles.TempPath
+                        If Not Directory.Exists(oTempFolder) Then
+                            Directory.CreateDirectory(oTempFolder)
+                        End If
+                        Dim oTempFilename = String.Concat(oTempFolder, "\", $"MergedDoc.pdf")
+                        'wenn es das MergedDocument schon gibt dann löschen
+                        If System.IO.File.Exists(oTempFilename) Then
+                            System.IO.File.Delete(oTempFilename)
+                        End If
+                        If dstPDF.SaveToFile(oTempFilename) = GdPictureStatus.OK Then
+                            ENVELOPE_TEMP_DOCUMENT = oTempFilename
+                            dstPDF.CloseDocument()
+                            oSuccess = True
+                        Else
+                            MsgBox("Unexpected format-error within the final document!", MsgBoxStyle.Critical)
+                            oSuccess = False
+                        End If
+                    Else
+                        MessageBox.Show("The MergeDocuments() method has failed with the status: " + oStatus.ToString(), "Example: MergeDocuments")
+                        oSuccess = False
+                    End If
+                    dstPDF.Dispose()
+                    oIDX = 0
+                    For Each oFile As String In OpenFileDialog1.FileNames
+                        arPDF(oIDX).CloseDocument()
+                        oIDX += 1
+                    Next
+                    If oSuccess = True And ENVELOPE_TEMP_DOCUMENT <> String.Empty Then
+                        Await AddDocument(ENVELOPE_TEMP_DOCUMENT)
+
+                    End If
+                End If
+
+            End If
+
+        Catch ex As Exception
+            Logger.Error(ex)
+        Finally
+            SplashScreenManager.CloseOverlayForm(oHandle)
+        End Try
+
+
+        'frmChooseDocVariant.ShowDialog()
 
     End Sub
 
-    Private Sub ViewReceivers_CellValueChanging(sender As Object, e As CellValueChangedEventArgs) Handles ViewReceivers.CellValueChanging
+    Private Sub frmEnvelopeEditor_DragEnter(sender As Object, e As DragEventArgs) Handles Me.DragEnter
+        ClearBsiItem()
+        ' Prüfen, ob die Daten vom Typ Datei sind
+        If e.Data.GetDataPresent(DataFormats.FileDrop) Then
+            ' prüfen ob es schon eine Datei gibt
+            If Documents.Count > 0 Then
+                e.Effect = DragDropEffects.None
+                bsitm_info.Caption = Resources.Envelope.Only_one_file_is_allowed
+                bsitm_info.ItemAppearance.Normal.BackColor = Color.Red
+                bsitm_info.ItemAppearance.Normal.ForeColor = Color.Yellow
+            Else
+                ' Effekt auf "Kopieren" setzen, um Drag-and-Drop zu ermöglichen
+                e.Effect = DragDropEffects.Copy
+            End If
 
+        Else
+            e.Effect = DragDropEffects.None
+        End If
+    End Sub
+    Sub ClearBsiItem()
+        bsitm_info.Caption = ""
+        bsitm_info.ItemAppearance.Normal.BackColor = Color.Transparent
+        bsitm_info.ItemAppearance.Normal.ForeColor = Color.Black
+    End Sub
+    Private Async Sub frmEnvelopeEditor_DragDrop(sender As Object, e As DragEventArgs) Handles Me.DragDrop
+        ' Den Pfad der Datei(en) erhalten
+        Dim ofiles() As String = CType(e.Data.GetData(DataFormats.FileDrop), String())
+
+        ' Beispiel: Ersten Dateipfad anzeigen
+        If ofiles IsNot Nothing AndAlso ofiles.Length > 0 Then
+            If Not ofiles(0).ToString.EndsWith("pdf") Then
+                bsitm_info.Caption = Resources.Envelope.Drop_only_one_file
+                bsitm_info.ItemAppearance.Normal.BackColor = Color.Red
+                bsitm_info.ItemAppearance.Normal.ForeColor = Color.Yellow
+            Else
+                Dim oHandle = SplashScreenManager.ShowOverlayForm(Me)
+                Await AddDocument(ofiles(0))
+                SplashScreenManager.CloseOverlayForm(oHandle)
+                ' MessageBox.Show("Dateipfad: " & ofiles(0), "Datei abgelegt", MessageBoxButtons.OK, MessageBoxIcon.Information)
+            End If
+
+        End If
     End Sub
 
+    Private Sub GridDocuments_DoubleClick(sender As Object, e As EventArgs) Handles GridDocuments.DoubleClick
+        showdocument()
+    End Sub
 
+    Private Sub btnShowFile_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnShowFile.ItemClick
+        showDocument
+    End Sub
+    Sub showdocument()
+        If Not IsNothing(Documents) Then
+            Process.Start(Documents.Item(0).Filepath)
+        End If
+    End Sub
 End Class

EnvelopeGenerator.Form/frmEnvelopeMainData.Designer.vb

@@ -25,6 +25,7 @@ Partial Class frmEnvelopeMainData
         Me.components = New System.ComponentModel.Container()
         Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(frmEnvelopeMainData))
         Me.LayoutControl1 = New DevExpress.XtraLayout.LayoutControl()
+        Me.chked_2Faktor = New DevExpress.XtraEditors.CheckEdit()
         Me.txtTitle = New DevExpress.XtraEditors.TextEdit()
         Me.cmbEnvelopeType = New DevExpress.XtraEditors.ComboBoxEdit()
         Me.btOK = New DevExpress.XtraEditors.SimpleButton()
@@ -62,9 +63,11 @@ Partial Class frmEnvelopeMainData
         Me.LayoutControlItem8 = New DevExpress.XtraLayout.LayoutControlItem()
         Me.LayoutControlItem12 = New DevExpress.XtraLayout.LayoutControlItem()
         Me.LayoutControlItem13 = New DevExpress.XtraLayout.LayoutControlItem()
+        Me.LayoutControlItem16 = New DevExpress.XtraLayout.LayoutControlItem()
         Me.AdornerUIManager1 = New DevExpress.Utils.VisualEffects.AdornerUIManager(Me.components)
         CType(Me.LayoutControl1, System.ComponentModel.ISupportInitialize).BeginInit()
         Me.LayoutControl1.SuspendLayout()
+        CType(Me.chked_2Faktor.Properties, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.txtTitle.Properties, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.cmbEnvelopeType.Properties, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.cmbCertificationType.Properties, System.ComponentModel.ISupportInitialize).BeginInit()
@@ -100,11 +103,13 @@ Partial Class frmEnvelopeMainData
         CType(Me.LayoutControlItem8, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.LayoutControlItem12, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.LayoutControlItem13, System.ComponentModel.ISupportInitialize).BeginInit()
+        CType(Me.LayoutControlItem16, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.AdornerUIManager1, System.ComponentModel.ISupportInitialize).BeginInit()
         Me.SuspendLayout()
         '
         'LayoutControl1
         '
+        Me.LayoutControl1.Controls.Add(Me.chked_2Faktor)
         Me.LayoutControl1.Controls.Add(Me.txtTitle)
         Me.LayoutControl1.Controls.Add(Me.cmbEnvelopeType)
         Me.LayoutControl1.Controls.Add(Me.btOK)
@@ -124,6 +129,15 @@ Partial Class frmEnvelopeMainData
         Me.LayoutControl1.OptionsCustomizationForm.DesignTimeCustomizationFormPositionAndSize = New System.Drawing.Rectangle(855, 189, 650, 400)
         Me.LayoutControl1.Root = Me.Root
         '
+        'chked_2Faktor
+        '
+        resources.ApplyResources(Me.chked_2Faktor, "chked_2Faktor")
+        Me.chked_2Faktor.Name = "chked_2Faktor"
+        Me.chked_2Faktor.Properties.Appearance.Font = CType(resources.GetObject("chked_2Faktor.Properties.Appearance.Font"), System.Drawing.Font)
+        Me.chked_2Faktor.Properties.Appearance.Options.UseFont = True
+        Me.chked_2Faktor.Properties.Caption = resources.GetString("chked_2Faktor.Properties.Caption")
+        Me.chked_2Faktor.StyleController = Me.LayoutControl1
+        '
         'txtTitle
         '
         resources.ApplyResources(Me.txtTitle, "txtTitle")
@@ -311,16 +325,16 @@ Partial Class frmEnvelopeMainData
         'EmptySpaceItem2
         '
         Me.EmptySpaceItem2.AllowHotTrack = False
-        Me.EmptySpaceItem2.Location = New System.Drawing.Point(0, 416)
+        Me.EmptySpaceItem2.Location = New System.Drawing.Point(0, 441)
         Me.EmptySpaceItem2.Name = "EmptySpaceItem2"
-        Me.EmptySpaceItem2.Size = New System.Drawing.Size(565, 88)
+        Me.EmptySpaceItem2.Size = New System.Drawing.Size(565, 63)
         Me.EmptySpaceItem2.TextSize = New System.Drawing.Size(0, 0)
         '
         'groupFinalEmail
         '
         Me.groupFinalEmail.GroupStyle = DevExpress.Utils.GroupStyle.Light
         Me.groupFinalEmail.Items.AddRange(New DevExpress.XtraLayout.BaseLayoutItem() {Me.LayoutControlItem9, Me.LayoutControlItem14})
-        Me.groupFinalEmail.Location = New System.Drawing.Point(0, 323)
+        Me.groupFinalEmail.Location = New System.Drawing.Point(0, 348)
         Me.groupFinalEmail.Name = "groupFinalEmail"
         Me.groupFinalEmail.Size = New System.Drawing.Size(565, 93)
         resources.ApplyResources(Me.groupFinalEmail, "groupFinalEmail")
@@ -348,7 +362,7 @@ Partial Class frmEnvelopeMainData
         Me.groupExpiration.Enabled = False
         Me.groupExpiration.GroupStyle = DevExpress.Utils.GroupStyle.Light
         Me.groupExpiration.Items.AddRange(New DevExpress.XtraLayout.BaseLayoutItem() {Me.LayoutControlItem10, Me.LayoutControlItem11})
-        Me.groupExpiration.Location = New System.Drawing.Point(0, 230)
+        Me.groupExpiration.Location = New System.Drawing.Point(0, 255)
         Me.groupExpiration.Name = "groupExpiration"
         Me.groupExpiration.Size = New System.Drawing.Size(565, 93)
         resources.ApplyResources(Me.groupExpiration, "groupExpiration")
@@ -376,7 +390,7 @@ Partial Class frmEnvelopeMainData
         Me.groupReminders.Enabled = False
         Me.groupReminders.GroupStyle = DevExpress.Utils.GroupStyle.Light
         Me.groupReminders.Items.AddRange(New DevExpress.XtraLayout.BaseLayoutItem() {Me.LayoutControlItem5, Me.LayoutControlItem6, Me.LayoutControlItem7})
-        Me.groupReminders.Location = New System.Drawing.Point(0, 115)
+        Me.groupReminders.Location = New System.Drawing.Point(0, 140)
         Me.groupReminders.Name = "groupReminders"
         Me.groupReminders.Size = New System.Drawing.Size(565, 115)
         resources.ApplyResources(Me.groupReminders, "groupReminders")
@@ -411,10 +425,10 @@ Partial Class frmEnvelopeMainData
         'groupOptions
         '
         Me.groupOptions.GroupStyle = DevExpress.Utils.GroupStyle.Light
-        Me.groupOptions.Items.AddRange(New DevExpress.XtraLayout.BaseLayoutItem() {Me.LayoutControlItem8, Me.LayoutControlItem12, Me.LayoutControlItem13})
+        Me.groupOptions.Items.AddRange(New DevExpress.XtraLayout.BaseLayoutItem() {Me.LayoutControlItem8, Me.LayoutControlItem12, Me.LayoutControlItem13, Me.LayoutControlItem16})
         Me.groupOptions.Location = New System.Drawing.Point(0, 0)
         Me.groupOptions.Name = "groupOptions"
-        Me.groupOptions.Size = New System.Drawing.Size(565, 115)
+        Me.groupOptions.Size = New System.Drawing.Size(565, 140)
         resources.ApplyResources(Me.groupOptions, "groupOptions")
         '
         'LayoutControlItem8
@@ -438,12 +452,21 @@ Partial Class frmEnvelopeMainData
         'LayoutControlItem13
         '
         Me.LayoutControlItem13.Control = Me.chkUseAccessCode
-        Me.LayoutControlItem13.Location = New System.Drawing.Point(0, 48)
+        Me.LayoutControlItem13.Location = New System.Drawing.Point(0, 73)
         Me.LayoutControlItem13.Name = "LayoutControlItem13"
         Me.LayoutControlItem13.Size = New System.Drawing.Size(541, 22)
         Me.LayoutControlItem13.TextSize = New System.Drawing.Size(0, 0)
         Me.LayoutControlItem13.TextVisible = False
         '
+        'LayoutControlItem16
+        '
+        Me.LayoutControlItem16.Control = Me.chked_2Faktor
+        Me.LayoutControlItem16.Location = New System.Drawing.Point(0, 48)
+        Me.LayoutControlItem16.Name = "LayoutControlItem16"
+        Me.LayoutControlItem16.Size = New System.Drawing.Size(541, 25)
+        Me.LayoutControlItem16.TextSize = New System.Drawing.Size(0, 0)
+        Me.LayoutControlItem16.TextVisible = False
+        '
         'AdornerUIManager1
         '
         Me.AdornerUIManager1.Owner = Me
@@ -461,6 +484,7 @@ Partial Class frmEnvelopeMainData
         Me.ShowInTaskbar = False
         CType(Me.LayoutControl1, System.ComponentModel.ISupportInitialize).EndInit()
         Me.LayoutControl1.ResumeLayout(False)
+        CType(Me.chked_2Faktor.Properties, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.txtTitle.Properties, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.cmbEnvelopeType.Properties, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.cmbCertificationType.Properties, System.ComponentModel.ISupportInitialize).EndInit()
@@ -496,6 +520,7 @@ Partial Class frmEnvelopeMainData
         CType(Me.LayoutControlItem8, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.LayoutControlItem12, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.LayoutControlItem13, System.ComponentModel.ISupportInitialize).EndInit()
+        CType(Me.LayoutControlItem16, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.AdornerUIManager1, System.ComponentModel.ISupportInitialize).EndInit()
         Me.ResumeLayout(False)
 
@@ -540,4 +565,6 @@ Partial Class frmEnvelopeMainData
     Friend WithEvents LayoutControlItem14 As DevExpress.XtraLayout.LayoutControlItem
     Friend WithEvents EmptySpaceItem2 As DevExpress.XtraLayout.EmptySpaceItem
     Friend WithEvents groupAllOptions As DevExpress.XtraLayout.LayoutControlGroup
+    Friend WithEvents chked_2Faktor As DevExpress.XtraEditors.CheckEdit
+    Friend WithEvents LayoutControlItem16 As DevExpress.XtraLayout.LayoutControlItem
 End Class

EnvelopeGenerator.Form/frmEnvelopeMainData.resx

@@ -118,13 +118,40 @@
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
   <assembly alias="System.Drawing" name="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+  <data name="chked_2Faktor.Location" type="System.Drawing.Point, System.Drawing">
+    <value>27, 210</value>
+  </data>
+  <data name="chked_2Faktor.Properties.Appearance.Font" type="System.Drawing.Font, System.Drawing">
+    <value>Segoe UI, 10pt, style=Bold</value>
+  </data>
+  <data name="chked_2Faktor.Properties.Caption" xml:space="preserve">
+    <value>2 Faktor -Authentifizierung aktivieren</value>
+  </data>
+  <data name="chked_2Faktor.Size" type="System.Drawing.Size, System.Drawing">
+    <value>537, 21</value>
+  </data>
+  <assembly alias="mscorlib" name="mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="chked_2Faktor.TabIndex" type="System.Int32, mscorlib">
+    <value>21</value>
+  </data>
+  <data name="&gt;&gt;chked_2Faktor.Name" xml:space="preserve">
+    <value>chked_2Faktor</value>
+  </data>
+  <data name="&gt;&gt;chked_2Faktor.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.CheckEdit, DevExpress.XtraEditors.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;chked_2Faktor.Parent" xml:space="preserve">
+    <value>LayoutControl1</value>
+  </data>
+  <data name="&gt;&gt;chked_2Faktor.ZOrder" xml:space="preserve">
+    <value>4</value>
+  </data>
   <data name="txtTitle.Location" type="System.Drawing.Point, System.Drawing">
     <value>204, 45</value>
   </data>
   <data name="txtTitle.Size" type="System.Drawing.Size, System.Drawing">
     <value>363, 20</value>
   </data>
-  <assembly alias="mscorlib" name="mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
   <data name="txtTitle.TabIndex" type="System.Int32, mscorlib">
     <value>4</value>
   </data>
@@ -138,7 +165,7 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;txtTitle.ZOrder" xml:space="preserve">
-    <value>4</value>
+    <value>5</value>
   </data>
   <data name="cmbEnvelopeType.Location" type="System.Drawing.Point, System.Drawing">
     <value>204, 69</value>
@@ -163,7 +190,7 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;cmbEnvelopeType.ZOrder" xml:space="preserve">
-    <value>5</value>
+    <value>6</value>
   </data>
   <data name="btOK.Location" type="System.Drawing.Point, System.Drawing">
     <value>22, 636</value>
@@ -191,7 +218,7 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;btOK.ZOrder" xml:space="preserve">
-    <value>6</value>
+    <value>7</value>
   </data>
   <data name="btCancel.Location" type="System.Drawing.Point, System.Drawing">
     <value>92, 636</value>
@@ -218,7 +245,7 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;btCancel.ZOrder" xml:space="preserve">
-    <value>7</value>
+    <value>8</value>
   </data>
   <data name="cmbCertificationType.Enabled" type="System.Boolean, mscorlib">
     <value>False</value>
@@ -245,10 +272,10 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;cmbCertificationType.ZOrder" xml:space="preserve">
-    <value>8</value>
+    <value>9</value>
   </data>
   <data name="chkSendReminderEmails.Location" type="System.Drawing.Point, System.Drawing">
-    <value>27, 277</value>
+    <value>27, 302</value>
   </data>
   <data name="chkSendReminderEmails.Properties.Caption" xml:space="preserve">
     <value>Erinnerungen senden</value>
@@ -269,13 +296,13 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;chkSendReminderEmails.ZOrder" xml:space="preserve">
-    <value>9</value>
+    <value>10</value>
   </data>
   <data name="spnFirstReminderDays.EditValue" type="System.Decimal, mscorlib">
     <value>0</value>
   </data>
   <data name="spnFirstReminderDays.Location" type="System.Drawing.Point, System.Drawing">
-    <value>207, 299</value>
+    <value>207, 324</value>
   </data>
   <data name="spnFirstReminderDays.Properties.Buttons" type="DevExpress.XtraEditors.Controls.ButtonPredefines, DevExpress.Utils.v21.2">
     <value>Combo</value>
@@ -296,13 +323,13 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;spnFirstReminderDays.ZOrder" xml:space="preserve">
-    <value>10</value>
+    <value>11</value>
   </data>
   <data name="spnReminderIntervalDays.EditValue" type="System.Decimal, mscorlib">
     <value>0</value>
   </data>
   <data name="spnReminderIntervalDays.Location" type="System.Drawing.Point, System.Drawing">
-    <value>207, 323</value>
+    <value>207, 348</value>
   </data>
   <data name="spnReminderIntervalDays.Properties.Buttons" type="DevExpress.XtraEditors.Controls.ButtonPredefines, DevExpress.Utils.v21.2">
     <value>Combo</value>
@@ -323,13 +350,13 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;spnReminderIntervalDays.ZOrder" xml:space="preserve">
-    <value>11</value>
+    <value>12</value>
   </data>
   <data name="spnExpiresDays.EditValue" type="System.Decimal, mscorlib">
     <value>0</value>
   </data>
   <data name="spnExpiresDays.Location" type="System.Drawing.Point, System.Drawing">
-    <value>207, 392</value>
+    <value>207, 417</value>
   </data>
   <data name="spnExpiresDays.Properties.Buttons" type="DevExpress.XtraEditors.Controls.ButtonPredefines, DevExpress.Utils.v21.2">
     <value>Combo</value>
@@ -350,13 +377,13 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;spnExpiresDays.ZOrder" xml:space="preserve">
-    <value>12</value>
+    <value>13</value>
   </data>
   <data name="spnExpiresWarningDays.EditValue" type="System.Decimal, mscorlib">
     <value>0</value>
   </data>
   <data name="spnExpiresWarningDays.Location" type="System.Drawing.Point, System.Drawing">
-    <value>207, 416</value>
+    <value>207, 441</value>
   </data>
   <data name="spnExpiresWarningDays.Properties.Buttons" type="DevExpress.XtraEditors.Controls.ButtonPredefines, DevExpress.Utils.v21.2">
     <value>Combo</value>
@@ -377,7 +404,7 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;spnExpiresWarningDays.ZOrder" xml:space="preserve">
-    <value>13</value>
+    <value>14</value>
   </data>
   <data name="cmbLanguage.Location" type="System.Drawing.Point, System.Drawing">
     <value>207, 186</value>
@@ -401,10 +428,10 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;cmbLanguage.ZOrder" xml:space="preserve">
-    <value>14</value>
+    <value>15</value>
   </data>
   <data name="chkUseAccessCode.Location" type="System.Drawing.Point, System.Drawing">
-    <value>27, 210</value>
+    <value>27, 235</value>
   </data>
   <data name="chkUseAccessCode.Properties.Caption" xml:space="preserve">
     <value>Verwende Zugriffscode</value>
@@ -425,10 +452,10 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;chkUseAccessCode.ZOrder" xml:space="preserve">
-    <value>15</value>
+    <value>16</value>
   </data>
   <data name="cmbEmailToCreator.Location" type="System.Drawing.Point, System.Drawing">
-    <value>207, 485</value>
+    <value>207, 510</value>
   </data>
   <data name="cmbEmailToCreator.Properties.Buttons" type="DevExpress.XtraEditors.Controls.ButtonPredefines, DevExpress.Utils.v21.2">
     <value>Combo</value>
@@ -449,10 +476,10 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;cmbEmailToCreator.ZOrder" xml:space="preserve">
-    <value>16</value>
+    <value>17</value>
   </data>
   <data name="cmbEmailToReceivers.Location" type="System.Drawing.Point, System.Drawing">
-    <value>207, 509</value>
+    <value>207, 534</value>
   </data>
   <data name="cmbEmailToReceivers.Properties.Buttons" type="DevExpress.XtraEditors.Controls.ButtonPredefines, DevExpress.Utils.v21.2">
     <value>Combo</value>
@@ -473,7 +500,7 @@
     <value>LayoutControl1</value>
   </data>
   <data name="&gt;&gt;cmbEmailToReceivers.ZOrder" xml:space="preserve">
-    <value>17</value>
+    <value>18</value>
   </data>
   <data name="LayoutControl1.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
     <value>Fill</value>
@@ -727,6 +754,12 @@
   <data name="&gt;&gt;LayoutControlItem13.Type" xml:space="preserve">
     <value>DevExpress.XtraLayout.LayoutControlItem, DevExpress.XtraLayout.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
+  <data name="&gt;&gt;LayoutControlItem16.Name" xml:space="preserve">
+    <value>LayoutControlItem16</value>
+  </data>
+  <data name="&gt;&gt;LayoutControlItem16.Type" xml:space="preserve">
+    <value>DevExpress.XtraLayout.LayoutControlItem, DevExpress.XtraLayout.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
   <data name="&gt;&gt;AdornerUIManager1.Name" xml:space="preserve">
     <value>AdornerUIManager1</value>
   </data>

EnvelopeGenerator.Form/frmEnvelopeMainData.vb

@@ -4,7 +4,7 @@ Imports EnvelopeGenerator.Common.Constants
 Imports System.ComponentModel
 
 Public Class frmEnvelopeMainData
-
+    Private FormLoaded As Boolean = False
     Public Property Envelope As Envelope = New Envelope()
     Public Property NewEnvelopeMode As Boolean = True
 
@@ -20,70 +20,87 @@ Public Class frmEnvelopeMainData
     End Sub
 
     Private Sub frmEnvelopeMainData_Load(sender As Object, e As EventArgs) Handles MyBase.Load
-        If NewEnvelopeMode = True Then
-            Me.Text = Resources.Envelope.New_Envelope
-        Else
-            Me.Text = Resources.Envelope.Edit_Envelope
-            cmbEnvelopeType.ReadOnly = True
-        End If
+        Try
+            If NewEnvelopeMode = True Then
+                Me.Text = Resources.Envelope.New_Envelope
+            Else
+                Me.Text = Resources.Envelope.Edit_Envelope
+                cmbEnvelopeType.ReadOnly = True
+            End If
 
-        EnvelopeTypeModel = New EnvelopeTypeModel(State)
-        Dim oTypes = EnvelopeTypeModel.List()
+            EnvelopeTypeModel = New EnvelopeTypeModel(State)
+            Dim oTypes = EnvelopeTypeModel.List()
 
-        If oTypes.Count = 0 Then
-            MsgBox("No templates in Database!", MsgBoxStyle.Exclamation, Text)
-            Close()
-            Exit Sub
-        End If
+            If oTypes.Count = 0 Then
+                MsgBox("No templates in Database!", MsgBoxStyle.Exclamation, Text)
+                Close()
+                Exit Sub
+            End If
 
-        Dim certificationTypeList = [Enum].GetValues(GetType(CertificationType)).Cast(Of CertificationType)()
-        Dim oTranslatedCertificationTypeList = certificationTypeList.Select(AddressOf TranslateCertificationType).ToList()
 
-        cmbCertificationType.Properties.Items.AddRange(oTranslatedCertificationTypeList)
+            ' Dim oTranslatedVerificationTypeList = VerificationTypeList.Select(AddressOf TranslateVerificationTypeType).ToList()
 
-        Dim finalEmailTypeList = [Enum].GetValues(GetType(FinalEmailType)).Cast(Of FinalEmailType)()
-        Dim oTranslatedFinalEmailTypeList = FinalEmailTypeList.Select(AddressOf TranslateFinalEmailType).ToList()
+            Dim certificationTypeList = [Enum].GetValues(GetType(CertificationType)).Cast(Of CertificationType)()
+            Dim oTranslatedCertificationTypeList = certificationTypeList.Select(AddressOf TranslateCertificationType).ToList()
 
-        cmbEmailToCreator.Properties.Items.AddRange(oTranslatedFinalEmailTypeList)
-        cmbEmailToReceivers.Properties.Items.AddRange(oTranslatedFinalEmailTypeList)
+            cmbCertificationType.Properties.Items.AddRange(oTranslatedCertificationTypeList)
 
-        cmbEnvelopeType.Properties.Items.AddRange(oTypes.ToList)
-        cmbLanguage.Properties.Items.AddRange(New List(Of String) From {"de", "en"})
 
-        groupAllOptions.Expanded = False
+            Dim finalEmailTypeList = [Enum].GetValues(GetType(FinalEmailType)).Cast(Of FinalEmailType)()
+            Dim oTranslatedFinalEmailTypeList = finalEmailTypeList.Select(AddressOf TranslateFinalEmailType).ToList()
 
-        If NewEnvelopeMode = True Then
-            Dim oType = oTypes.FirstOrDefault()
+            cmbEmailToCreator.Properties.Items.AddRange(oTranslatedFinalEmailTypeList)
+            cmbEmailToReceivers.Properties.Items.AddRange(oTranslatedFinalEmailTypeList)
 
-            ' This will trigger loading values from the type
-            cmbEnvelopeType.EditValue = oType
-        Else
-            ' This will trigger loading values from the type
-            cmbEnvelopeType.EditValue = Envelope.EnvelopeType
-            ' cmbEnvelopeType.SelectedIndex = Convert.ToInt32(Envelope.EnvelopeType) - 1
-            ' cmbEnvelopeType.SelectedIndex = Envelope.Type.Id - 1
-            ' cmbEnvelopeType.SelectedItem = cmbEnvelopeType.Properties.Items.Cast(Of EnvelopeType).Where(Function(i) i.Id = Envelope.EnvelopeType.Id).SingleOrDefault()
+            cmbEnvelopeType.Properties.Items.AddRange(oTypes.ToList)
+            cmbLanguage.Properties.Items.AddRange(New List(Of String) From {"de", "en"})
+
+            groupAllOptions.Expanded = False
+
+            If NewEnvelopeMode = True Then
+                Dim oType = oTypes.FirstOrDefault()
+
+                ' This will trigger loading values from the type
+                cmbEnvelopeType.EditValue = oType
+                chked_2Faktor.EditValue = DEF_TF_ENABLED
+
+            Else
+                ' This will trigger loading values from the type
+                cmbEnvelopeType.EditValue = Envelope.EnvelopeType
+                ' cmbEnvelopeType.SelectedIndex = Convert.ToInt32(Envelope.EnvelopeType) - 1
+                ' cmbEnvelopeType.SelectedIndex = Envelope.Type.Id - 1
+                ' cmbEnvelopeType.SelectedItem = cmbEnvelopeType.Properties.Items.Cast(Of EnvelopeType).Where(Function(i) i.Id = Envelope.EnvelopeType.Id).SingleOrDefault()
+
+                ' Now we can override these values with the values from envelope
+                txtTitle.EditValue = Envelope.Title
+                chkUseAccessCode.EditValue = Envelope.UseAccessCode
+                chked_2Faktor.EditValue = Envelope.TFA_Enabled
+                cmbCertificationType.SelectedIndex = Convert.ToInt32(Envelope.CertificationType) - 1
+                cmbEmailToCreator.SelectedIndex = Convert.ToInt32(Envelope.FinalEmailToCreator)
+                cmbEmailToReceivers.SelectedIndex = Convert.ToInt32(Envelope.FinalEmailToReceivers)
+            End If
+        Catch ex As Exception
+            MsgBox(ex.Message, MsgBoxStyle.Critical, "Unexpected Error loading form:")
+        End Try
 
-            ' Now we can override these values with the values from envelope
-            txtTitle.EditValue = Envelope.Title
-            chkUseAccessCode.EditValue = Envelope.UseAccessCode
-            cmbCertificationType.SelectedIndex = Convert.ToInt32(Envelope.CertificationType) - 1
-            cmbEmailToCreator.SelectedIndex = Convert.ToInt32(Envelope.FinalEmailToCreator)
-            cmbEmailToReceivers.SelectedIndex = Convert.ToInt32(Envelope.FinalEmailToReceivers)
-        End If
 
     End Sub
-
+    Private Sub CheckAccessCode()
+        If Envelope.TFA_Enabled = True Then
+            chkUseAccessCode.Checked = True
+            chkUseAccessCode.Enabled = False
+        Else
+            chkUseAccessCode.Enabled = True
+        End If
+    End Sub
     Private Function TranslateCertificationType(pType As CertificationType) As String
         Return Resources.Model.ResourceManager.GetString(pType.ToString())
     End Function
-
     Private Function TranslateFinalEmailType(pType As FinalEmailType) As String
         Return Resources.Model.ResourceManager.GetString(pType.ToString())
     End Function
 
     Private Sub btOK_Click(sender As Object, e As EventArgs) Handles btOK.Click
-
         Dim Validator As Validator = New Validator(State.LogConfig, AdornerUIManager1)
         Dim oMissingParams = Validator.Validate(txtTitle)
 
@@ -110,13 +127,16 @@ Public Class frmEnvelopeMainData
         Envelope.ExpiresWarningWhenDays = spnExpiresWarningDays.EditValue
         Envelope.FinalEmailToCreator = cmbEmailToCreator.SelectedIndex
         Envelope.FinalEmailToReceivers = cmbEmailToReceivers.SelectedIndex
-
+        Envelope.TFA_Enabled = chked_2Faktor.EditValue
         ' ContractType kann zzt nicht über die Oberfläche gesetzt werden
         Envelope.ContractType = ContractType.Contract
     End Sub
 
     Private Sub frmEnvelopeMainData_Shown(sender As Object, e As EventArgs) Handles Me.Shown
         SetFormHeight()
+        CheckAccessCode()
+        FormLoaded = True
+
     End Sub
 
     Private Sub SetFormHeight()
@@ -152,4 +172,15 @@ Public Class frmEnvelopeMainData
         cmbEmailToReceivers.SelectedIndex = oSelectedType.FinalEmailToReceivers
 
     End Sub
+
+    Private Sub chked_2Faktor_CheckedChanged(sender As Object, e As EventArgs) Handles chked_2Faktor.CheckedChanged
+        If FormLoaded = True Then
+            If chked_2Faktor.Checked = True Then
+                chkUseAccessCode.Checked = True
+                chkUseAccessCode.Enabled = False
+            Else
+                chkUseAccessCode.Enabled = True
+            End If
+        End If
+    End Sub
 End Class

EnvelopeGenerator.Form/frmMain.Designer.vb

@@ -65,7 +65,7 @@ Partial Class frmMain
         Me.RibbonPage1 = New DevExpress.XtraBars.Ribbon.RibbonPage()
         Me.RibbonPageEnvelopeActions = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonPageGroup1 = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
-        Me.RibbonPageGroup2 = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
+        Me.RibbonPageFunctions = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonPage2 = New DevExpress.XtraBars.Ribbon.RibbonPage()
         Me.RibbonPageGroup3 = New DevExpress.XtraBars.Ribbon.RibbonPageGroup()
         Me.RibbonStatusBar = New DevExpress.XtraBars.Ribbon.RibbonStatusBar()
@@ -85,8 +85,20 @@ Partial Class frmMain
         Me.GridColumn4 = New DevExpress.XtraGrid.Columns.GridColumn()
         Me.GridColumn5 = New DevExpress.XtraGrid.Columns.GridColumn()
         Me.GridColumn7 = New DevExpress.XtraGrid.Columns.GridColumn()
+        Me.XtraTabPageAdmin = New DevExpress.XtraTab.XtraTabPage()
+        Me.GridControlData = New DevExpress.XtraGrid.GridControl()
+        Me.GridViewData = New DevExpress.XtraGrid.Views.Grid.GridView()
+        Me.PanelControl1 = New DevExpress.XtraEditors.PanelControl()
+        Me.GroupControl1 = New DevExpress.XtraEditors.GroupControl()
+        Me.btnEnvelopes_All = New DevExpress.XtraEditors.SimpleButton()
+        Me.btnEnvelopes_thisYear = New DevExpress.XtraEditors.SimpleButton()
+        Me.btnEnvelopes_lastmonth = New DevExpress.XtraEditors.SimpleButton()
+        Me.btnEnvelopes_thismonth = New DevExpress.XtraEditors.SimpleButton()
         Me.RefreshTimer = New System.Windows.Forms.Timer(Me.components)
         Me.SaveFileDialog1 = New System.Windows.Forms.SaveFileDialog()
+        Me.GroupControl2 = New DevExpress.XtraEditors.GroupControl()
+        Me.SplitContainerControl2 = New DevExpress.XtraEditors.SplitContainerControl()
+        Me.ChartControl1 = New DevExpress.XtraCharts.ChartControl()
         CType(Me.SplitContainerControl1, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.SplitContainerControl1.Panel1, System.ComponentModel.ISupportInitialize).BeginInit()
         Me.SplitContainerControl1.Panel1.SuspendLayout()
@@ -105,6 +117,21 @@ Partial Class frmMain
         CType(Me.ViewReceiversCompleted, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.ViewHistoryCompleted, System.ComponentModel.ISupportInitialize).BeginInit()
         CType(Me.ViewCompleted, System.ComponentModel.ISupportInitialize).BeginInit()
+        Me.XtraTabPageAdmin.SuspendLayout()
+        CType(Me.GridControlData, System.ComponentModel.ISupportInitialize).BeginInit()
+        CType(Me.GridViewData, System.ComponentModel.ISupportInitialize).BeginInit()
+        CType(Me.PanelControl1, System.ComponentModel.ISupportInitialize).BeginInit()
+        Me.PanelControl1.SuspendLayout()
+        CType(Me.GroupControl1, System.ComponentModel.ISupportInitialize).BeginInit()
+        Me.GroupControl1.SuspendLayout()
+        CType(Me.GroupControl2, System.ComponentModel.ISupportInitialize).BeginInit()
+        CType(Me.SplitContainerControl2, System.ComponentModel.ISupportInitialize).BeginInit()
+        CType(Me.SplitContainerControl2.Panel1, System.ComponentModel.ISupportInitialize).BeginInit()
+        Me.SplitContainerControl2.Panel1.SuspendLayout()
+        CType(Me.SplitContainerControl2.Panel2, System.ComponentModel.ISupportInitialize).BeginInit()
+        Me.SplitContainerControl2.Panel2.SuspendLayout()
+        Me.SplitContainerControl2.SuspendLayout()
+        CType(Me.ChartControl1, System.ComponentModel.ISupportInitialize).BeginInit()
         Me.SuspendLayout()
         '
         'SplashScreenManager1
@@ -134,7 +161,7 @@ Partial Class frmMain
         resources.ApplyResources(Me.XtraTabControlMain, "XtraTabControlMain")
         Me.XtraTabControlMain.Name = "XtraTabControlMain"
         Me.XtraTabControlMain.SelectedTabPage = Me.XtraTabPage1
-        Me.XtraTabControlMain.TabPages.AddRange(New DevExpress.XtraTab.XtraTabPage() {Me.XtraTabPage1, Me.XtraTabPage2})
+        Me.XtraTabControlMain.TabPages.AddRange(New DevExpress.XtraTab.XtraTabPage() {Me.XtraTabPage1, Me.XtraTabPage2, Me.XtraTabPageAdmin})
         '
         'XtraTabPage1
         '
@@ -426,7 +453,7 @@ Partial Class frmMain
         '
         'RibbonPage1
         '
-        Me.RibbonPage1.Groups.AddRange(New DevExpress.XtraBars.Ribbon.RibbonPageGroup() {Me.RibbonPageEnvelopeActions, Me.RibbonPageGroup1, Me.RibbonPageGroup2})
+        Me.RibbonPage1.Groups.AddRange(New DevExpress.XtraBars.Ribbon.RibbonPageGroup() {Me.RibbonPageEnvelopeActions, Me.RibbonPageGroup1, Me.RibbonPageFunctions})
         Me.RibbonPage1.Name = "RibbonPage1"
         resources.ApplyResources(Me.RibbonPage1, "RibbonPage1")
         '
@@ -445,15 +472,15 @@ Partial Class frmMain
         Me.RibbonPageGroup1.Name = "RibbonPageGroup1"
         resources.ApplyResources(Me.RibbonPageGroup1, "RibbonPageGroup1")
         '
-        'RibbonPageGroup2
+        'RibbonPageFunctions
         '
-        Me.RibbonPageGroup2.ItemLinks.Add(Me.btnShowDocument)
-        Me.RibbonPageGroup2.ItemLinks.Add(Me.btnContactReceiver)
-        Me.RibbonPageGroup2.ItemLinks.Add(Me.bbtnitmInfoMail)
-        Me.RibbonPageGroup2.ItemLinks.Add(Me.bbtnitmEB)
-        Me.RibbonPageGroup2.ItemLinks.Add(Me.BarButtonItem2)
-        Me.RibbonPageGroup2.Name = "RibbonPageGroup2"
-        resources.ApplyResources(Me.RibbonPageGroup2, "RibbonPageGroup2")
+        Me.RibbonPageFunctions.ItemLinks.Add(Me.btnShowDocument)
+        Me.RibbonPageFunctions.ItemLinks.Add(Me.btnContactReceiver)
+        Me.RibbonPageFunctions.ItemLinks.Add(Me.bbtnitmInfoMail)
+        Me.RibbonPageFunctions.ItemLinks.Add(Me.bbtnitmEB)
+        Me.RibbonPageFunctions.ItemLinks.Add(Me.BarButtonItem2)
+        Me.RibbonPageFunctions.Name = "RibbonPageFunctions"
+        resources.ApplyResources(Me.RibbonPageFunctions, "RibbonPageFunctions")
         '
         'RibbonPage2
         '
@@ -606,6 +633,70 @@ Partial Class frmMain
         Me.GridColumn7.FieldName = "AddedWhen"
         Me.GridColumn7.Name = "GridColumn7"
         '
+        'XtraTabPageAdmin
+        '
+        Me.XtraTabPageAdmin.Controls.Add(Me.SplitContainerControl2)
+        Me.XtraTabPageAdmin.Controls.Add(Me.PanelControl1)
+        Me.XtraTabPageAdmin.Name = "XtraTabPageAdmin"
+        resources.ApplyResources(Me.XtraTabPageAdmin, "XtraTabPageAdmin")
+        '
+        'GridControlData
+        '
+        resources.ApplyResources(Me.GridControlData, "GridControlData")
+        Me.GridControlData.MainView = Me.GridViewData
+        Me.GridControlData.MenuManager = Me.RibbonControl
+        Me.GridControlData.Name = "GridControlData"
+        Me.GridControlData.ViewCollection.AddRange(New DevExpress.XtraGrid.Views.Base.BaseView() {Me.GridViewData})
+        '
+        'GridViewData
+        '
+        Me.GridViewData.GridControl = Me.GridControlData
+        Me.GridViewData.Name = "GridViewData"
+        '
+        'PanelControl1
+        '
+        Me.PanelControl1.Controls.Add(Me.GroupControl2)
+        Me.PanelControl1.Controls.Add(Me.GroupControl1)
+        resources.ApplyResources(Me.PanelControl1, "PanelControl1")
+        Me.PanelControl1.Name = "PanelControl1"
+        '
+        'GroupControl1
+        '
+        Me.GroupControl1.Controls.Add(Me.btnEnvelopes_All)
+        Me.GroupControl1.Controls.Add(Me.btnEnvelopes_thisYear)
+        Me.GroupControl1.Controls.Add(Me.btnEnvelopes_lastmonth)
+        Me.GroupControl1.Controls.Add(Me.btnEnvelopes_thismonth)
+        resources.ApplyResources(Me.GroupControl1, "GroupControl1")
+        Me.GroupControl1.Name = "GroupControl1"
+        '
+        'btnEnvelopes_All
+        '
+        Me.btnEnvelopes_All.Appearance.BackColor = System.Drawing.Color.MediumTurquoise
+        Me.btnEnvelopes_All.Appearance.Options.UseBackColor = True
+        resources.ApplyResources(Me.btnEnvelopes_All, "btnEnvelopes_All")
+        Me.btnEnvelopes_All.Name = "btnEnvelopes_All"
+        '
+        'btnEnvelopes_thisYear
+        '
+        Me.btnEnvelopes_thisYear.Appearance.BackColor = System.Drawing.Color.LightSeaGreen
+        Me.btnEnvelopes_thisYear.Appearance.Options.UseBackColor = True
+        resources.ApplyResources(Me.btnEnvelopes_thisYear, "btnEnvelopes_thisYear")
+        Me.btnEnvelopes_thisYear.Name = "btnEnvelopes_thisYear"
+        '
+        'btnEnvelopes_lastmonth
+        '
+        Me.btnEnvelopes_lastmonth.Appearance.BackColor = System.Drawing.Color.Turquoise
+        Me.btnEnvelopes_lastmonth.Appearance.Options.UseBackColor = True
+        resources.ApplyResources(Me.btnEnvelopes_lastmonth, "btnEnvelopes_lastmonth")
+        Me.btnEnvelopes_lastmonth.Name = "btnEnvelopes_lastmonth"
+        '
+        'btnEnvelopes_thismonth
+        '
+        Me.btnEnvelopes_thismonth.Appearance.BackColor = System.Drawing.Color.Aquamarine
+        Me.btnEnvelopes_thismonth.Appearance.Options.UseBackColor = True
+        resources.ApplyResources(Me.btnEnvelopes_thismonth, "btnEnvelopes_thismonth")
+        Me.btnEnvelopes_thismonth.Name = "btnEnvelopes_thismonth"
+        '
         'RefreshTimer
         '
         Me.RefreshTimer.Interval = 120000
@@ -614,6 +705,33 @@ Partial Class frmMain
         '
         resources.ApplyResources(Me.SaveFileDialog1, "SaveFileDialog1")
         '
+        'GroupControl2
+        '
+        resources.ApplyResources(Me.GroupControl2, "GroupControl2")
+        Me.GroupControl2.Name = "GroupControl2"
+        '
+        'SplitContainerControl2
+        '
+        resources.ApplyResources(Me.SplitContainerControl2, "SplitContainerControl2")
+        Me.SplitContainerControl2.Name = "SplitContainerControl2"
+        '
+        'SplitContainerControl2.Panel1
+        '
+        Me.SplitContainerControl2.Panel1.Controls.Add(Me.GridControlData)
+        resources.ApplyResources(Me.SplitContainerControl2.Panel1, "SplitContainerControl2.Panel1")
+        '
+        'SplitContainerControl2.Panel2
+        '
+        Me.SplitContainerControl2.Panel2.Controls.Add(Me.ChartControl1)
+        resources.ApplyResources(Me.SplitContainerControl2.Panel2, "SplitContainerControl2.Panel2")
+        Me.SplitContainerControl2.SplitterPosition = 501
+        '
+        'ChartControl1
+        '
+        resources.ApplyResources(Me.ChartControl1, "ChartControl1")
+        Me.ChartControl1.Name = "ChartControl1"
+        Me.ChartControl1.SeriesSerializable = New DevExpress.XtraCharts.Series(-1) {}
+        '
         'frmMain
         '
         resources.ApplyResources(Me, "$this")
@@ -643,6 +761,21 @@ Partial Class frmMain
         CType(Me.ViewReceiversCompleted, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.ViewHistoryCompleted, System.ComponentModel.ISupportInitialize).EndInit()
         CType(Me.ViewCompleted, System.ComponentModel.ISupportInitialize).EndInit()
+        Me.XtraTabPageAdmin.ResumeLayout(False)
+        CType(Me.GridControlData, System.ComponentModel.ISupportInitialize).EndInit()
+        CType(Me.GridViewData, System.ComponentModel.ISupportInitialize).EndInit()
+        CType(Me.PanelControl1, System.ComponentModel.ISupportInitialize).EndInit()
+        Me.PanelControl1.ResumeLayout(False)
+        CType(Me.GroupControl1, System.ComponentModel.ISupportInitialize).EndInit()
+        Me.GroupControl1.ResumeLayout(False)
+        CType(Me.GroupControl2, System.ComponentModel.ISupportInitialize).EndInit()
+        CType(Me.SplitContainerControl2.Panel1, System.ComponentModel.ISupportInitialize).EndInit()
+        Me.SplitContainerControl2.Panel1.ResumeLayout(False)
+        CType(Me.SplitContainerControl2.Panel2, System.ComponentModel.ISupportInitialize).EndInit()
+        Me.SplitContainerControl2.Panel2.ResumeLayout(False)
+        CType(Me.SplitContainerControl2, System.ComponentModel.ISupportInitialize).EndInit()
+        Me.SplitContainerControl2.ResumeLayout(False)
+        CType(Me.ChartControl1, System.ComponentModel.ISupportInitialize).EndInit()
         Me.ResumeLayout(False)
         Me.PerformLayout()
 
@@ -692,7 +825,7 @@ Partial Class frmMain
     Friend WithEvents txtRefreshLabel As DevExpress.XtraBars.BarStaticItem
     Friend WithEvents btnShowDocument As DevExpress.XtraBars.BarButtonItem
     Friend WithEvents btnContactReceiver As DevExpress.XtraBars.BarButtonItem
-    Friend WithEvents RibbonPageGroup2 As DevExpress.XtraBars.Ribbon.RibbonPageGroup
+    Friend WithEvents RibbonPageFunctions As DevExpress.XtraBars.Ribbon.RibbonPageGroup
     Friend WithEvents colEnvelopeId As DevExpress.XtraGrid.Columns.GridColumn
     Friend WithEvents ViewHistoryCompleted As DevExpress.XtraGrid.Views.Grid.GridView
     Friend WithEvents ColHistoryStatusCompleted As DevExpress.XtraGrid.Columns.GridColumn
@@ -709,4 +842,16 @@ Partial Class frmMain
     Friend WithEvents bbtnitmEB As DevExpress.XtraBars.BarButtonItem
     Friend WithEvents bbtnitmInfoMail As DevExpress.XtraBars.BarButtonItem
     Friend WithEvents BarButtonItem2 As DevExpress.XtraBars.BarButtonItem
+    Friend WithEvents XtraTabPageAdmin As DevExpress.XtraTab.XtraTabPage
+    Friend WithEvents PanelControl1 As DevExpress.XtraEditors.PanelControl
+    Friend WithEvents GroupControl1 As DevExpress.XtraEditors.GroupControl
+    Friend WithEvents btnEnvelopes_thisYear As DevExpress.XtraEditors.SimpleButton
+    Friend WithEvents btnEnvelopes_lastmonth As DevExpress.XtraEditors.SimpleButton
+    Friend WithEvents btnEnvelopes_thismonth As DevExpress.XtraEditors.SimpleButton
+    Friend WithEvents btnEnvelopes_All As DevExpress.XtraEditors.SimpleButton
+    Friend WithEvents GridControlData As DevExpress.XtraGrid.GridControl
+    Friend WithEvents GridViewData As DevExpress.XtraGrid.Views.Grid.GridView
+    Friend WithEvents GroupControl2 As DevExpress.XtraEditors.GroupControl
+    Friend WithEvents SplitContainerControl2 As DevExpress.XtraEditors.SplitContainerControl
+    Friend WithEvents ChartControl1 As DevExpress.XtraCharts.ChartControl
 End Class

EnvelopeGenerator.Form/frmMain.resx

@@ -764,7 +764,7 @@
   <data name="RibbonPageGroup1.Text" xml:space="preserve">
     <value>Daten</value>
   </data>
-  <data name="RibbonPageGroup2.Text" xml:space="preserve">
+  <data name="RibbonPageFunctions.Text" xml:space="preserve">
     <value>Funktionen</value>
   </data>
   <data name="RibbonPage1.Text" xml:space="preserve">
@@ -1025,6 +1025,291 @@
   <data name="&gt;&gt;XtraTabPage2.ZOrder" xml:space="preserve">
     <value>1</value>
   </data>
+  <data name="SplitContainerControl2.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
+    <value>Fill</value>
+  </data>
+  <data name="SplitContainerControl2.Location" type="System.Drawing.Point, System.Drawing">
+    <value>0, 79</value>
+  </data>
+  <data name="GridControlData.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
+    <value>Fill</value>
+  </data>
+  <data name="GridControlData.Location" type="System.Drawing.Point, System.Drawing">
+    <value>0, 0</value>
+  </data>
+  <data name="GridControlData.Size" type="System.Drawing.Size, System.Drawing">
+    <value>501, 388</value>
+  </data>
+  <data name="GridControlData.TabIndex" type="System.Int32, mscorlib">
+    <value>1</value>
+  </data>
+  <data name="&gt;&gt;GridControlData.Name" xml:space="preserve">
+    <value>GridControlData</value>
+  </data>
+  <data name="&gt;&gt;GridControlData.Type" xml:space="preserve">
+    <value>DevExpress.XtraGrid.GridControl, DevExpress.XtraGrid.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;GridControlData.Parent" xml:space="preserve">
+    <value>SplitContainerControl2.Panel1</value>
+  </data>
+  <data name="&gt;&gt;GridControlData.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="SplitContainerControl2.Panel1.Text" xml:space="preserve">
+    <value>Panel1</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel1.Name" xml:space="preserve">
+    <value>SplitContainerControl2.Panel1</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel1.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SplitGroupPanel, DevExpress.Utils.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel1.Parent" xml:space="preserve">
+    <value>SplitContainerControl2</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel1.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="ChartControl1.Location" type="System.Drawing.Point, System.Drawing">
+    <value>17, 6</value>
+  </data>
+  <data name="ChartControl1.Size" type="System.Drawing.Size, System.Drawing">
+    <value>300, 200</value>
+  </data>
+  <data name="ChartControl1.TabIndex" type="System.Int32, mscorlib">
+    <value>0</value>
+  </data>
+  <data name="&gt;&gt;ChartControl1.Name" xml:space="preserve">
+    <value>ChartControl1</value>
+  </data>
+  <data name="&gt;&gt;ChartControl1.Type" xml:space="preserve">
+    <value>DevExpress.XtraCharts.ChartControl, DevExpress.XtraCharts.v21.2.UI, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;ChartControl1.Parent" xml:space="preserve">
+    <value>SplitContainerControl2.Panel2</value>
+  </data>
+  <data name="&gt;&gt;ChartControl1.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="SplitContainerControl2.Panel2.Text" xml:space="preserve">
+    <value>Panel2</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel2.Name" xml:space="preserve">
+    <value>SplitContainerControl2.Panel2</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel2.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SplitGroupPanel, DevExpress.Utils.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel2.Parent" xml:space="preserve">
+    <value>SplitContainerControl2</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Panel2.ZOrder" xml:space="preserve">
+    <value>1</value>
+  </data>
+  <data name="SplitContainerControl2.Size" type="System.Drawing.Size, System.Drawing">
+    <value>1088, 388</value>
+  </data>
+  <data name="SplitContainerControl2.TabIndex" type="System.Int32, mscorlib">
+    <value>2</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Name" xml:space="preserve">
+    <value>SplitContainerControl2</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SplitContainerControl, DevExpress.Utils.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.Parent" xml:space="preserve">
+    <value>XtraTabPageAdmin</value>
+  </data>
+  <data name="&gt;&gt;SplitContainerControl2.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="GroupControl2.Location" type="System.Drawing.Point, System.Drawing">
+    <value>496, 5</value>
+  </data>
+  <data name="GroupControl2.Size" type="System.Drawing.Size, System.Drawing">
+    <value>427, 68</value>
+  </data>
+  <data name="GroupControl2.TabIndex" type="System.Int32, mscorlib">
+    <value>2</value>
+  </data>
+  <data name="GroupControl2.Text" xml:space="preserve">
+    <value>Diagramme</value>
+  </data>
+  <data name="&gt;&gt;GroupControl2.Name" xml:space="preserve">
+    <value>GroupControl2</value>
+  </data>
+  <data name="&gt;&gt;GroupControl2.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.GroupControl, DevExpress.Utils.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;GroupControl2.Parent" xml:space="preserve">
+    <value>PanelControl1</value>
+  </data>
+  <data name="&gt;&gt;GroupControl2.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="btnEnvelopes_All.Location" type="System.Drawing.Point, System.Drawing">
+    <value>339, 26</value>
+  </data>
+  <data name="btnEnvelopes_All.Size" type="System.Drawing.Size, System.Drawing">
+    <value>104, 35</value>
+  </data>
+  <data name="btnEnvelopes_All.TabIndex" type="System.Int32, mscorlib">
+    <value>3</value>
+  </data>
+  <data name="btnEnvelopes_All.Text" xml:space="preserve">
+    <value>Insgesamt</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_All.Name" xml:space="preserve">
+    <value>btnEnvelopes_All</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_All.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SimpleButton, DevExpress.XtraEditors.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_All.Parent" xml:space="preserve">
+    <value>GroupControl1</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_All.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="btnEnvelopes_thisYear.Location" type="System.Drawing.Point, System.Drawing">
+    <value>229, 26</value>
+  </data>
+  <data name="btnEnvelopes_thisYear.Size" type="System.Drawing.Size, System.Drawing">
+    <value>104, 35</value>
+  </data>
+  <data name="btnEnvelopes_thisYear.TabIndex" type="System.Int32, mscorlib">
+    <value>2</value>
+  </data>
+  <data name="btnEnvelopes_thisYear.Text" xml:space="preserve">
+    <value>Dieses Jahr</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thisYear.Name" xml:space="preserve">
+    <value>btnEnvelopes_thisYear</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thisYear.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SimpleButton, DevExpress.XtraEditors.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thisYear.Parent" xml:space="preserve">
+    <value>GroupControl1</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thisYear.ZOrder" xml:space="preserve">
+    <value>1</value>
+  </data>
+  <data name="btnEnvelopes_lastmonth.Location" type="System.Drawing.Point, System.Drawing">
+    <value>119, 26</value>
+  </data>
+  <data name="btnEnvelopes_lastmonth.Size" type="System.Drawing.Size, System.Drawing">
+    <value>104, 35</value>
+  </data>
+  <data name="btnEnvelopes_lastmonth.TabIndex" type="System.Int32, mscorlib">
+    <value>1</value>
+  </data>
+  <data name="btnEnvelopes_lastmonth.Text" xml:space="preserve">
+    <value>Letzten Monat</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_lastmonth.Name" xml:space="preserve">
+    <value>btnEnvelopes_lastmonth</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_lastmonth.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SimpleButton, DevExpress.XtraEditors.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_lastmonth.Parent" xml:space="preserve">
+    <value>GroupControl1</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_lastmonth.ZOrder" xml:space="preserve">
+    <value>2</value>
+  </data>
+  <data name="btnEnvelopes_thismonth.Location" type="System.Drawing.Point, System.Drawing">
+    <value>9, 26</value>
+  </data>
+  <data name="btnEnvelopes_thismonth.Size" type="System.Drawing.Size, System.Drawing">
+    <value>104, 35</value>
+  </data>
+  <data name="btnEnvelopes_thismonth.TabIndex" type="System.Int32, mscorlib">
+    <value>0</value>
+  </data>
+  <data name="btnEnvelopes_thismonth.Text" xml:space="preserve">
+    <value>Diesen Monat</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thismonth.Name" xml:space="preserve">
+    <value>btnEnvelopes_thismonth</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thismonth.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.SimpleButton, DevExpress.XtraEditors.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thismonth.Parent" xml:space="preserve">
+    <value>GroupControl1</value>
+  </data>
+  <data name="&gt;&gt;btnEnvelopes_thismonth.ZOrder" xml:space="preserve">
+    <value>3</value>
+  </data>
+  <data name="GroupControl1.Location" type="System.Drawing.Point, System.Drawing">
+    <value>11, 5</value>
+  </data>
+  <data name="GroupControl1.Size" type="System.Drawing.Size, System.Drawing">
+    <value>453, 68</value>
+  </data>
+  <data name="GroupControl1.TabIndex" type="System.Int32, mscorlib">
+    <value>1</value>
+  </data>
+  <data name="GroupControl1.Text" xml:space="preserve">
+    <value>Umschläge pro User</value>
+  </data>
+  <data name="&gt;&gt;GroupControl1.Name" xml:space="preserve">
+    <value>GroupControl1</value>
+  </data>
+  <data name="&gt;&gt;GroupControl1.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.GroupControl, DevExpress.Utils.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;GroupControl1.Parent" xml:space="preserve">
+    <value>PanelControl1</value>
+  </data>
+  <data name="&gt;&gt;GroupControl1.ZOrder" xml:space="preserve">
+    <value>1</value>
+  </data>
+  <data name="PanelControl1.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
+    <value>Top</value>
+  </data>
+  <data name="PanelControl1.Location" type="System.Drawing.Point, System.Drawing">
+    <value>0, 0</value>
+  </data>
+  <data name="PanelControl1.Size" type="System.Drawing.Size, System.Drawing">
+    <value>1088, 79</value>
+  </data>
+  <data name="PanelControl1.TabIndex" type="System.Int32, mscorlib">
+    <value>0</value>
+  </data>
+  <data name="&gt;&gt;PanelControl1.Name" xml:space="preserve">
+    <value>PanelControl1</value>
+  </data>
+  <data name="&gt;&gt;PanelControl1.Type" xml:space="preserve">
+    <value>DevExpress.XtraEditors.PanelControl, DevExpress.Utils.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;PanelControl1.Parent" xml:space="preserve">
+    <value>XtraTabPageAdmin</value>
+  </data>
+  <data name="&gt;&gt;PanelControl1.ZOrder" xml:space="preserve">
+    <value>1</value>
+  </data>
+  <data name="XtraTabPageAdmin.Size" type="System.Drawing.Size, System.Drawing">
+    <value>1088, 467</value>
+  </data>
+  <data name="XtraTabPageAdmin.Text" xml:space="preserve">
+    <value>Auswertungen (Admin)</value>
+  </data>
+  <data name="&gt;&gt;XtraTabPageAdmin.Name" xml:space="preserve">
+    <value>XtraTabPageAdmin</value>
+  </data>
+  <data name="&gt;&gt;XtraTabPageAdmin.Type" xml:space="preserve">
+    <value>DevExpress.XtraTab.XtraTabPage, DevExpress.XtraEditors.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
+  <data name="&gt;&gt;XtraTabPageAdmin.Parent" xml:space="preserve">
+    <value>XtraTabControlMain</value>
+  </data>
+  <data name="&gt;&gt;XtraTabPageAdmin.ZOrder" xml:space="preserve">
+    <value>2</value>
+  </data>
   <data name="&gt;&gt;XtraTabControlMain.Name" xml:space="preserve">
     <value>XtraTabControlMain</value>
   </data>
@@ -1098,7 +1383,7 @@
     <value>True</value>
   </metadata>
   <metadata name="$this.TrayHeight" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
-    <value>263</value>
+    <value>108</value>
   </metadata>
   <data name="$this.AutoScaleDimensions" type="System.Drawing.SizeF, System.Drawing">
     <value>6, 13</value>
@@ -1108,83 +1393,83 @@
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+        8g8AAAAASUVORK5CYII=
 </value>
   </data>
   <data name="$this.StartPosition" type="System.Windows.Forms.FormStartPosition, System.Windows.Forms">
@@ -1403,10 +1688,10 @@
   <data name="&gt;&gt;RibbonPageGroup1.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.Ribbon.RibbonPageGroup, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
-  <data name="&gt;&gt;RibbonPageGroup2.Name" xml:space="preserve">
-    <value>RibbonPageGroup2</value>
+  <data name="&gt;&gt;RibbonPageFunctions.Name" xml:space="preserve">
+    <value>RibbonPageFunctions</value>
   </data>
-  <data name="&gt;&gt;RibbonPageGroup2.Type" xml:space="preserve">
+  <data name="&gt;&gt;RibbonPageFunctions.Type" xml:space="preserve">
     <value>DevExpress.XtraBars.Ribbon.RibbonPageGroup, DevExpress.XtraBars.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
   <data name="&gt;&gt;RibbonPage2.Name" xml:space="preserve">
@@ -1505,6 +1790,12 @@
   <data name="&gt;&gt;GridColumn7.Type" xml:space="preserve">
     <value>DevExpress.XtraGrid.Columns.GridColumn, DevExpress.XtraGrid.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
   </data>
+  <data name="&gt;&gt;GridViewData.Name" xml:space="preserve">
+    <value>GridViewData</value>
+  </data>
+  <data name="&gt;&gt;GridViewData.Type" xml:space="preserve">
+    <value>DevExpress.XtraGrid.Views.Grid.GridView, DevExpress.XtraGrid.v21.2, Version=21.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a</value>
+  </data>
   <data name="&gt;&gt;RefreshTimer.Name" xml:space="preserve">
     <value>RefreshTimer</value>
   </data>

EnvelopeGenerator.Form/frmMain.vb

@@ -40,17 +40,22 @@ Public Class frmMain
 
         TempFiles = New TempFiles(LogConfig)
         TempFiles.Create()
-
+        MyTempFiles = TempFiles
         RefreshHelper = New RefreshHelper(ViewEnvelopes, "Id")
 
         Controller = New EnvelopeListController(State)
+
         Try
             Me.LookAndFeel.UseDefaultLookAndFeel = False
             LookAndFeel.SetSkinStyle(SkinStyle.Office2019White, SkinSvgPalette.DefaultSkin)
         Catch ex As Exception
 
         End Try
-
+        If MYUSER.IsAdmin Then
+            XtraTabControlMain.TabPages(2).PageVisible = True
+        Else
+            XtraTabControlMain.TabPages(2).PageVisible = False
+        End If
         LoadEnvelopeData()
     End Sub
 
@@ -190,6 +195,8 @@ Public Class frmMain
     End Sub
 
     Private Sub XtraTabControl1_SelectedPageChanged(sender As Object, e As DevExpress.XtraTab.TabPageChangedEventArgs) Handles XtraTabControlMain.SelectedPageChanged
+        RibbonPageFunctions.Enabled = True
+        RibbonPageEnvelopeActions.Enabled = True
         Select Case XtraTabControlMain.SelectedTabPageIndex
             Case 1
                 btnEditEnvelope.Enabled = False
@@ -206,6 +213,10 @@ Public Class frmMain
                 bbtnitmEB.Enabled = False
                 LoadEnvelopeData()
                 txtEnvelopeIdLabel.Caption = "No Envelope selected"
+
+            Case 2
+                RibbonPageFunctions.Enabled = False
+                RibbonPageEnvelopeActions.Enabled = False
         End Select
     End Sub
 
@@ -565,7 +576,8 @@ Public Class frmMain
         For Each oReceiver As EnvelopeReceiver In Receivers
             If oReceiver.Email = selReceiver.Email Then
                 If oController.ActionService.ResendReceiver(oEnvelope, oReceiver) = True Then
-                    MsgBox(Resources.Envelope.Invitation_successfully_resend, MsgBoxStyle.Information, Text)
+                    Dim oMsg = Resources.Envelope.Invitation_successfully_resend.Replace("@Mail", oReceiver.Email)
+                    MsgBox(oMsg, MsgBoxStyle.Information, Text)
 
                 End If
             End If
@@ -583,4 +595,49 @@ Public Class frmMain
         txtEnvelopeIdLabel.Caption = String.Format(txtEnvelopeIdLabel.Tag, oEnvelope.Id)
 
     End Sub
+
+    Private Sub btnEnvelopes_thismonth_Click(sender As Object, e As EventArgs) Handles btnEnvelopes_thismonth.Click
+        If SQL_REP_ENV_USER_TM <> String.Empty Then
+            Result_Execute(SQL_REP_ENV_USER_TM)
+        Else
+            GridControlData.DataSource = Nothing
+        End If
+    End Sub
+
+    Private Sub btnEnvelopes_lastmonth_Click(sender As Object, e As EventArgs) Handles btnEnvelopes_lastmonth.Click
+        If SQL_REP_ENV_USER_LM <> String.Empty Then
+            Result_Execute(SQL_REP_ENV_USER_LM)
+        Else
+            GridControlData.DataSource = Nothing
+        End If
+    End Sub
+
+    Private Sub btnEnvelopes_thisYear_Click(sender As Object, e As EventArgs) Handles btnEnvelopes_thisYear.Click
+        If SQL_REP_ENV_USER_Y <> String.Empty Then
+            Result_Execute(SQL_REP_ENV_USER_Y)
+        Else
+            GridControlData.DataSource = Nothing
+        End If
+    End Sub
+
+    Private Sub btnEnvelopes_All_Click(sender As Object, e As EventArgs) Handles btnEnvelopes_All.Click
+        If SQL_REP_ENV_USER_ALL <> String.Empty Then
+            Result_Execute(SQL_REP_ENV_USER_ALL)
+        Else
+            GridControlData.DataSource = Nothing
+        End If
+    End Sub
+    Private Sub Result_Execute(mySQL As String)
+        Try
+            Dim oDT As DataTable = DB_DD_ECM.GetDatatable(mySQL)
+            If Not IsNothing(oDT) Then
+
+                GridControlData.DataSource = oDT
+            Else
+                GridControlData.DataSource = Nothing
+            End If
+        Catch ex As Exception
+
+        End Try
+    End Sub
 End Class

EnvelopeGenerator.Form/frmSplashScreen.vb

@@ -77,12 +77,30 @@ Public Class frmSplashScreen
         Worker.ReportProgress(40, "Initializing Configuration")
         Thread.Sleep(300)
 
+        Dim oSQl = "SELECT * FROM TBDD_SQL_COMMANDS"
+        Dim oDT = oState.Database.GetDatatable(oSQl)
+        For Each oROW As DataRow In oDT.Rows
+            If oROW.Item("TITLE") = "REPORT ENV USER THIS_MONTH" Then
+                SQL_REP_ENV_USER_TM = oROW.Item("SQL_COMMAND")
+            ElseIf oROW.Item("TITLE") = "REPORT ENV USER LAST_MONTH" Then
+                SQL_REP_ENV_USER_LM = oROW.Item("SQL_COMMAND")
+            ElseIf oROW.Item("TITLE") = "REPORT ENV USER YEAR" Then
+                SQL_REP_ENV_USER_Y = oROW.Item("SQL_COMMAND")
+            ElseIf oROW.Item("TITLE") = "REPORT ENV USER ALL" Then
+                SQL_REP_ENV_USER_ALL = oROW.Item("SQL_COMMAND")
+            End If
+
+        Next
+        oSQl = "SELECT * FROM TBSIG_CHART"
+        DT_CHARTS = oState.Database.GetDatatable(oSQl)
+
         Dim ConfigModel = New ConfigModel(oState)
         oState.DbConfig = ConfigModel.LoadConfiguration()
+        DEF_TF_ENABLED = oState.DbConfig.Default_TFA_Enabled
         ' DOCUMENT_PATH_MOVE_AFTSEND = oState.DbConfig.DOCUMENT_PATH_MOVE_AFTSEND
         Worker.ReportProgress(60, "Initializing User")
         Dim oKey = oState.Database.GetScalarValue("SELECT LICENSE FROM TBDD_3RD_PARTY_MODULES WHERE NAME = 'GDPICTURE' and ACTIVE = 1")
-        Thread.Sleep(300)
+                Thread.Sleep(300)
         If oKey.ToString <> String.Empty Then
             MS_GDPICTUREKEY = oKey
         End If
@@ -98,6 +116,7 @@ Public Class frmSplashScreen
         If oUser IsNot Nothing Then
             oUserModel.CheckUserLogin(oUser)
         End If
+        MYUSER = oUser
 
         Worker.ReportProgress(100, "Starting Application")
         Thread.Sleep(300)

EnvelopeGenerator.Infrastructure/Contracts/IEnvelopeReceiverRepository.cs

@@ -5,19 +5,19 @@ namespace EnvelopeGenerator.Infrastructure.Contracts
 {
     public interface IEnvelopeReceiverRepository : ICRUDRepository<EnvelopeReceiver, (int Envelope, int Receiver)>
     {
-        Task<IEnumerable<EnvelopeReceiver>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false);
+        Task<IEnumerable<EnvelopeReceiver>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false, bool readOnly = true);
 
-        Task<IEnumerable<EnvelopeReceiver>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true);
+        Task<IEnumerable<EnvelopeReceiver>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true, bool readOnly = true);
 
-        Task<EnvelopeReceiver?> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true);
+        Task<EnvelopeReceiver?> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true);
 
-        Task<string?> ReadAccessCodeAsync(string uuid, string signature);
+        Task<string?> ReadAccessCodeAsync(string uuid, string signature, bool readOnly = true);
 
         Task<int> CountAsync(string uuid, string signature);
 
-		Task<EnvelopeReceiver?> ReadByIdAsync(int envelopeId, int receiverId);
+		Task<EnvelopeReceiver?> ReadByIdAsync(int envelopeId, int receiverId, bool readOnly = true);
 
-		Task<string?> ReadAccessCodeByIdAsync(int envelopeId, int receiverId);
+		Task<string?> ReadAccessCodeByIdAsync(int envelopeId, int receiverId, bool readOnly = true);
 
         Task<IEnumerable<EnvelopeReceiver>> ReadByUsernameAsync(string username, int? min_status = null, int? max_status = null, params int[] ignore_statuses);
 

EnvelopeGenerator.Infrastructure/Repositories/EnvlopeReceiverRepository.cs

@@ -11,9 +11,9 @@ namespace EnvelopeGenerator.Infrastructure.Repositories
         {
         }
 
-        private IQueryable<EnvelopeReceiver> ReadWhere(string? uuid = null, string? signature = null, bool withEnvelope = false, bool withReceiver = false)
+        private IQueryable<EnvelopeReceiver> ReadWhere(string? uuid = null, string? signature = null, bool withEnvelope = false, bool withReceiver = false, bool readOnly = true)
         {
-            var query = _dbSet.AsNoTracking();
+            var query = readOnly ? _dbSet.AsNoTracking() : _dbSet;
 
             if (uuid is not null)
                 query = query.Where(er => er.Envelope != null && er.Envelope.Uuid == uuid);
@@ -32,31 +32,34 @@ namespace EnvelopeGenerator.Infrastructure.Repositories
             return query;
         }
 
-        public async Task<IEnumerable<EnvelopeReceiver>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false)
-            => await ReadWhere(uuid: uuid, withEnvelope: withEnvelope, withReceiver: withReceiver).ToListAsync();
+        public async Task<IEnumerable<EnvelopeReceiver>> ReadByUuidAsync(string uuid, bool withEnvelope = true, bool withReceiver = false, bool readOnly = true)
+            => await ReadWhere(uuid: uuid, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly).ToListAsync();
 
-        public async Task<IEnumerable<EnvelopeReceiver>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true)
-            => await ReadWhere(signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver).ToListAsync();
+        public async Task<IEnumerable<EnvelopeReceiver>> ReadBySignatureAsync(string signature, bool withEnvelope = false, bool withReceiver = true, bool readOnly = true)
+            => await ReadWhere(signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly).ToListAsync();
 
-        public async Task<EnvelopeReceiver?> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true)
-            => await ReadWhere(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver).FirstOrDefaultAsync();
+        public async Task<EnvelopeReceiver?> ReadByUuidSignatureAsync(string uuid, string signature, bool withEnvelope = true, bool withReceiver = true, bool readOnly = true)
+            => await ReadWhere(uuid: uuid, signature: signature, withEnvelope: withEnvelope, withReceiver: withReceiver, readOnly: readOnly).FirstOrDefaultAsync();
 
-        public async Task<string?> ReadAccessCodeAsync(string uuid, string signature)
-            => await ReadWhere(uuid: uuid, signature: signature)
+        public async Task<string?> ReadAccessCodeAsync(string uuid, string signature, bool readOnly = true)
+            => await ReadWhere(uuid: uuid, signature: signature, readOnly: readOnly)
                 .Select(er => er.AccessCode)
                 .FirstOrDefaultAsync();
 
         public async Task<int> CountAsync(string uuid, string signature) => await ReadWhere(uuid: uuid, signature: signature).CountAsync();
 
-        public IQueryable<EnvelopeReceiver> ReadById(int envelopeId, int receiverId) => _dbSet.AsNoTracking()
-            .Where(er => er.EnvelopeId == envelopeId && er.ReceiverId == receiverId);
+        private IQueryable<EnvelopeReceiver> ReadById(int envelopeId, int receiverId, bool readOnly = true)
+        {
+            var query = readOnly ? _dbSet.AsNoTracking() : _dbSet;
+            return query.Where(er => er.EnvelopeId == envelopeId && er.ReceiverId == receiverId);
+        }
 
-        public async Task<EnvelopeReceiver?> ReadByIdAsync(int envelopeId, int receiverId)
-            => await ReadById(envelopeId: envelopeId, receiverId: receiverId)
+        public async Task<EnvelopeReceiver?> ReadByIdAsync(int envelopeId, int receiverId, bool readOnly = true)
+            => await ReadById(envelopeId: envelopeId, receiverId: receiverId, readOnly: readOnly)
             .FirstOrDefaultAsync();
 
-        public async Task<string?> ReadAccessCodeByIdAsync(int envelopeId, int receiverId)
-            => await ReadById(envelopeId: envelopeId, receiverId: receiverId)
+        public async Task<string?> ReadAccessCodeByIdAsync(int envelopeId, int receiverId, bool readOnly = true)
+            => await ReadById(envelopeId: envelopeId, receiverId: receiverId, readOnly: readOnly)
             .Select(er => er.AccessCode)
             .FirstOrDefaultAsync();
 

EnvelopeGenerator.Service/App.config

@@ -1,9 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <configSections>
-        <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
-            <section name="EnvelopeGenerator.Service.My.MySettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
-        </sectionGroup>
     </configSections>
     <startup> 
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
@@ -16,11 +13,4 @@
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-  <applicationSettings>
-    <EnvelopeGenerator.Service.My.MySettings>
-      <setting name="RunInDMZ" serializeAs="String">
-        <value>False</value>
-      </setting>
-    </EnvelopeGenerator.Service.My.MySettings>
-  </applicationSettings>
 </configuration>

EnvelopeGenerator.Service/My Project/AssemblyInfo.vb

@@ -31,5 +31,5 @@ Imports System.Runtime.InteropServices
 ' übernehmen, indem Sie "*" eingeben:
 ' <Assembly: AssemblyVersion("1.0.*")>
 
-<Assembly: AssemblyVersion("1.7.1.0")>
-<Assembly: AssemblyFileVersion("1.7.1.0")>
+<Assembly: AssemblyVersion("1.8.0.0")>
+<Assembly: AssemblyFileVersion("1.8.0.0")>

EnvelopeGenerator.Service/My Project/Settings.Designer.vb

@@ -1,10 +1,10 @@
 '------------------------------------------------------------------------------
 ' <auto-generated>
-'     This code was generated by a tool.
-'     Runtime Version:4.0.30319.42000
+'     Dieser Code wurde von einem Tool generiert.
+'     Laufzeitversion:4.0.30319.42000
 '
-'     Changes to this file may cause incorrect behavior and will be lost if
-'     the code is regenerated.
+'     Änderungen an dieser Datei können falsches Verhalten verursachen und gehen verloren, wenn
+'     der Code erneut generiert wird.
 ' </auto-generated>
 '------------------------------------------------------------------------------
 
@@ -22,7 +22,7 @@ Namespace My
         
         Private Shared defaultInstance As MySettings = CType(Global.System.Configuration.ApplicationSettingsBase.Synchronized(New MySettings()),MySettings)
         
-#Region "My.Settings Auto-Save Functionality"
+#Region "Automatische My.Settings-Speicherfunktion"
 #If _MyType = "WindowsForms" Then
     Private Shared addedHandler As Boolean
 
@@ -53,15 +53,6 @@ Namespace My
                 Return defaultInstance
             End Get
         End Property
-        
-        <Global.System.Configuration.ApplicationScopedSettingAttribute(),  _
-         Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
-         Global.System.Configuration.DefaultSettingValueAttribute("False")>  _
-        Public ReadOnly Property RunInDMZ() As Boolean
-            Get
-                Return CType(Me("RunInDMZ"),Boolean)
-            End Get
-        End Property
     End Class
 End Namespace
 

EnvelopeGenerator.Service/My Project/Settings.settings

@@ -1,9 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" GeneratedClassNamespace="My" GeneratedClassName="MySettings" UseMySettingsClassName="true">
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" UseMySettingsClassName="true">
   <Profiles />
-  <Settings>
-    <Setting Name="RunInDMZ" Type="System.Boolean" Scope="Application">
-      <Value Profile="(Default)">False</Value>
-    </Setting>
-  </Settings>
+  <Settings />
 </SettingsFile>

EnvelopeGenerator.Web/Controllers/ControllerBaseExtensions.cs

@@ -1,4 +1,7 @@
-using EnvelopeGenerator.Web.Models;
+using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
+using EnvelopeGenerator.Web.Models;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Mvc;
 using System.Security.Claims;
 
@@ -6,6 +9,7 @@ namespace EnvelopeGenerator.Web.Controllers
 {
     public static class ControllerBaseExtensions
     {
+        #region Auth
         public static string? GetClaimValue(this ControllerBase controller, string claimType) => controller.User.FindFirstValue(claimType);
 
         public static string? GetAuthEnvelopeUuid(this ControllerBase controller) => controller.User.FindFirstValue(ClaimTypes.NameIdentifier);
@@ -23,7 +27,35 @@ namespace EnvelopeGenerator.Web.Controllers
             var env_id_str = controller.User.FindFirstValue(EnvelopeClaimTypes.Id);
             return int.TryParse(env_id_str, out int env_id) ? env_id : null;
         }
+        
+        public static async Task SignInEnvelopeAsync(this HttpContext context, EnvelopeReceiverDto er, string receiverRole)
+        {
+            var claims = new List<Claim> {
+            new(ClaimTypes.NameIdentifier, er.Envelope!.Uuid),
+            new(ClaimTypes.Hash, er.Receiver!.Signature),
+            new(ClaimTypes.Name, er.Name ?? string.Empty),
+            new(ClaimTypes.Email, er.Receiver.EmailAddress),
+            new(EnvelopeClaimTypes.Title, er.Envelope.Title),
+            new(EnvelopeClaimTypes.Id, er.Envelope.Id.ToString()),
+            new(ClaimTypes.Role, receiverRole)
+        };
 
+            var claimsIdentity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
+
+            var authProperties = new AuthenticationProperties
+            {
+                AllowRefresh = false,
+                IsPersistent = false
+            };
+
+            await context.SignInAsync(
+                CookieAuthenticationDefaults.AuthenticationScheme,
+                new ClaimsPrincipal(claimsIdentity),
+                authProperties);
+        }
+        #endregion
+
+        #region View error
         //TODO: integrate localizer for ready-to-use views
         public static ViewResult ViewError(this Controller controller, ErrorViewModel errorViewModel) => controller.View("_Error", errorViewModel);
 
@@ -61,5 +93,6 @@ namespace EnvelopeGenerator.Web.Controllers
             Subtitle = "Ein unerwarteter Fehler ist aufgetreten",
             Body = "Bitte kontaktieren Sie das IT-Team."
         });
-	}
+        #endregion
+    }
 }

EnvelopeGenerator.Web/Controllers/DocumentController.cs

@@ -3,12 +3,12 @@ using EnvelopeGenerator.Common;
 using EnvelopeGenerator.Web.Services;
 using EnvelopeGenerator.Application.Contracts;
 using Microsoft.AspNetCore.Authorization;
-using EnvelopeGenerator.Application;
 using EnvelopeGenerator.Extensions;
+using static EnvelopeGenerator.Common.Constants;
 
 namespace EnvelopeGenerator.Web.Controllers
 {
-    [Authorize]
+    [Authorize(Roles = ReceiverRole.FullyAuth)]
     [Route("api/[controller]")]
     public class DocumentController : BaseController
     {
@@ -48,7 +48,7 @@ namespace EnvelopeGenerator.Web.Controllers
             }
         }
 
-        [Authorize]
+        [Authorize(Roles = ReceiverRole.FullyAuth)]
         [HttpPost("{envelopeKey}")]
         public async Task<IActionResult> Open(string envelopeKey)
         {

EnvelopeGenerator.Web/Controllers/EnvelopeController.cs

@@ -10,7 +10,7 @@ using EnvelopeGenerator.Extensions;
 
 namespace EnvelopeGenerator.Web.Controllers
 {
-    [Authorize]
+    [Authorize(Roles = ReceiverRole.FullyAuth)]
     [ApiController]
     [Route("api/[controller]")]
     public class EnvelopeController : BaseController
@@ -64,7 +64,7 @@ namespace EnvelopeGenerator.Web.Controllers
             }
         }
 
-        [Authorize]
+        [Authorize(Roles = ReceiverRole.FullyAuth)]
         [HttpPost("{envelopeKey}")]
         public async Task<IActionResult> Update(string envelopeKey, int index)
         {
@@ -110,7 +110,7 @@ namespace EnvelopeGenerator.Web.Controllers
             }
         }
 
-        [Authorize]
+        [Authorize(Roles = ReceiverRole.FullyAuth)]
         [HttpPost("reject")]
         public async Task<IActionResult> Reject([FromBody] string? reason = null)
         {

EnvelopeGenerator.Web/Controllers/HomeController.cs

@@ -19,46 +19,60 @@ using Ganss.Xss;
 using Newtonsoft.Json;
 using EnvelopeGenerator.Application.DTOs;
 using DigitalData.Core.Client;
-using DevExpress.Utils.About;
+using OtpNet;
 
-namespace EnvelopeGenerator.Web.Controllers
+namespace EnvelopeGenerator.Web.Controllers;
+
+public class HomeController : ViewControllerBase
 {
-    public class HomeController : Controller
-	{
-		private readonly ILogger<HomeController> _logger;
-		private readonly EnvelopeOldService envelopeOldService;
-        private readonly IEnvelopeReceiverService _envRcvService;
-        private readonly IEnvelopeHistoryService _historyService;
-        private readonly IStringLocalizer<Resource> _localizer;
-        private readonly IConfiguration _configuration;
-        private readonly HtmlSanitizer _sanitizer;
-        private readonly Cultures _cultures;
-        private readonly IEnvelopeMailService _mailService;
-        private readonly IEnvelopeReceiverReadOnlyService _readOnlyService;
-        private readonly IMessagingService _msgService;
-        private readonly IEnvelopeReceiverCache _erCache;
+    private readonly EnvelopeOldService envelopeOldService;
+    private readonly IEnvelopeReceiverService _envRcvService;
+    private readonly IEnvelopeHistoryService _historyService;
+    private readonly IConfiguration _configuration;
+    private readonly IEnvelopeMailService _mailService;
+    private readonly IEnvelopeReceiverReadOnlyService _readOnlyService;
+    private readonly IAuthenticator _authenticator;
+    private readonly IReceiverService _rcvService;
+    private readonly IEnvelopeSmsHandler _envSmsHandler;
 
-        public HomeController(EnvelopeOldService envelopeOldService, ILogger<HomeController> logger, IEnvelopeReceiverService envelopeReceiverService, IEnvelopeHistoryService historyService, IStringLocalizer<Resource> localizer, IConfiguration configuration, HtmlSanitizer sanitizer, Cultures cultures, IEnvelopeMailService envelopeMailService, IEnvelopeReceiverReadOnlyService readOnlyService, IMessagingService messagingService, IEnvelopeReceiverCache envelopeReceiverCache)
+    public HomeController(EnvelopeOldService envelopeOldService, ILogger<HomeController> logger, IEnvelopeReceiverService envelopeReceiverService, IEnvelopeHistoryService historyService, IStringLocalizer<Resource> localizer, IConfiguration configuration, HtmlSanitizer sanitizer, Cultures cultures, IEnvelopeMailService envelopeMailService, IEnvelopeReceiverReadOnlyService readOnlyService, IAuthenticator authenticator, IReceiverService receiverService, IEnvelopeSmsHandler envelopeSmsService) : base(logger, sanitizer, cultures, localizer)
+    {
+        this.envelopeOldService = envelopeOldService;
+        _envRcvService = envelopeReceiverService;
+        _historyService = historyService;
+        _configuration = configuration;
+        _mailService = envelopeMailService;
+        _readOnlyService = readOnlyService;
+        _authenticator = authenticator;
+        _rcvService = receiverService;
+        _envSmsHandler = envelopeSmsService;
+    }
+
+    [HttpGet("/")]
+    public IActionResult Main([FromQuery] string? culture = null)
+    {
+        //TODO: add a middelware or use an asp.net functionality insead of this code-smell
+        culture = culture is not null ? _sanitizer.Sanitize(culture) : null;
+
+        if (UserLanguage is null && culture is null)
         {
-            this.envelopeOldService = envelopeOldService;
-            _envRcvService = envelopeReceiverService;
-            _historyService = historyService;
-            _localizer = localizer;
-            _configuration = configuration;
-            _sanitizer = sanitizer;
-            _cultures = cultures;
-            _mailService = envelopeMailService;
-            _logger = logger;
-            _readOnlyService = readOnlyService;
-            _msgService = messagingService;
-            _erCache = envelopeReceiverCache;
+            UserLanguage = _cultures.Default.Language;
+            return Redirect($"{Request.Headers["Referer"]}?culture={_cultures.Default.Language}");
         }
 
-        [HttpGet("/")]
-        public IActionResult Main([FromQuery] string? culture = null)
+        ViewData["UserCulture"] = _cultures[UserLanguage];
+
+        return View();
+    }
+
+    [HttpGet("EnvelopeKey/{envelopeReceiverId}")]
+    public async Task<IActionResult> MainAsync([FromRoute] string envelopeReceiverId, [FromQuery] string? culture = null)
+    {
+        try
         {
             //TODO: add a middelware or use an asp.net functionality insead of this code-smell
             culture = culture is not null ? _sanitizer.Sanitize(culture) : null;
+            envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
 
             if (UserLanguage is null && culture is null)
             {
@@ -66,452 +80,489 @@ namespace EnvelopeGenerator.Web.Controllers
                 return Redirect($"{Request.Headers["Referer"]}?culture={_cultures.Default.Language}");
             }
 
-            ViewData["UserCulture"] = _cultures[UserLanguage];
+            envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
 
-            return View();
-        }
-        
-        [HttpGet("EnvelopeKey/{envelopeReceiverId}")]
-        public async Task<IActionResult> MainAsync([FromRoute] string envelopeReceiverId, [FromQuery] string? culture = null)
-        {
-            try
+            if (!envelopeReceiverId.TryDecode(out var decoded))
             {
-                //TODO: add a middelware or use an asp.net functionality insead of this code-smell
-                culture = culture is not null ? _sanitizer.Sanitize(culture) : null;
-                envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
-
-                if (UserLanguage is null && culture is null)
-                {
-                    UserLanguage = _cultures.Default.Language;
-                    return Redirect($"{Request.Headers["Referer"]}?culture={_cultures.Default.Language}");
-                }
-
-                envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
-
-                if (!envelopeReceiverId.TryDecode(out var decoded))
-                {
-                    Response.StatusCode = StatusCodes.Status401Unauthorized;
-                    return this.ViewDocumentNotFound();
-                }
-
-                if(decoded.GetEncodeType() == EncodeType.EnvelopeReceiverReadOnly)
-                    return Redirect($"{envelopeReceiverId}/ReadOnly");
-
-                ViewData["EnvelopeKey"] = envelopeReceiverId;
-
-                return await _envRcvService.ReadByEnvelopeReceiverIdAsync(envelopeReceiverId: envelopeReceiverId).ThenAsync<EnvelopeReceiverDto, IActionResult>(
-                    SuccessAsync: async er =>
-                    {
-                        EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeReceiverId);
-
-                        bool accessCodeAlreadyRequested = await _historyService.AccessCodeAlreadyRequested(envelopeId: er.Envelope!.Id, userReference: er.Receiver!.EmailAddress);
-                        if (!accessCodeAlreadyRequested)
-                        {
-                            await _historyService.RecordAsync(er.EnvelopeId, er.Receiver.EmailAddress, Constants.EnvelopeStatus.AccessCodeRequested);
-
-                            var mailRes = await _mailService.SendAccessCodeAsync(envelopeReceiverDto: er);
-                            if (mailRes.IsFailed)
-                            {
-                                _logger.LogNotice(mailRes);
-                                return this.ViewAccessCodeNotSent();
-                            }
-                        }
-
-                        return Redirect($"{envelopeReceiverId}/Locked");
-                    },
-                    Fail: (messages, notices) =>
-                    {
-                        _logger.LogNotice(notices);
-                        return this.ViewEnvelopeNotFound();
-                    });
+                Response.StatusCode = StatusCodes.Status401Unauthorized;
+                return this.ViewDocumentNotFound();
             }
-            catch(Exception ex)
-            {
-                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception:ex, message: _localizer[WebKey.UnexpectedError]);
-                return this.ViewInnerServiceError();
-            }
-        }
 
-        [HttpGet("EnvelopeKey/{envelopeReceiverId}/Locked")]
-        public async Task<IActionResult> EnvelopeLocked([FromRoute] string envelopeReceiverId)
-        {
-            try
-            {
-                ViewData["UserCulture"] = _cultures[UserLanguage];
+            if(decoded.GetEncodeType() == EncodeType.EnvelopeReceiverReadOnly)
+                return Redirect($"{envelopeReceiverId}/ReadOnly");
 
-                return await _envRcvService.ReadByEnvelopeReceiverIdAsync(envelopeReceiverId: envelopeReceiverId).ThenAsync(
-                    Success: er => View().WithData("EnvelopeKey", envelopeReceiverId),
-                    Fail: IActionResult (messages, notices) =>
-                    {
-                        _logger.LogNotice(notices);
-                        Response.StatusCode = StatusCodes.Status401Unauthorized;
-                        return this.ViewEnvelopeNotFound();
-                    });
-            }
-            catch(Exception ex)
-            {
-                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
-                return this.ViewInnerServiceError();
-            }
-        }
+            ViewData["EnvelopeKey"] = envelopeReceiverId;
 
-        [HttpPost("EnvelopeKey/{envelopeReceiverId}/Locked")]
-        public async Task<IActionResult> LogInEnvelope([FromRoute] string envelopeReceiverId, [FromForm] Auth auth)
-        {
-            try
-            {
-                ViewData["UserCulture"] = _cultures[UserLanguage];
-
-                envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
-                (string? uuid, string? signature) = envelopeReceiverId.DecodeEnvelopeReceiverId();
-
-                if (uuid is null || signature is null)
-                {
-                    _logger.LogEnvelopeError(uuid: uuid, signature: signature, message: _localizer[WebKey.WrongEnvelopeReceiverId]);
-                    return Unauthorized();
-                }
-
-                _logger.LogInformation("Envelope UUID: [{uuid}]\nReceiver Signature: [{signature}]", uuid, signature);
-
-                //check access code
-                EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeReceiverId);
-
-                return await _envRcvService.ReadWithSecretByUuidSignatureAsync(uuid: uuid, signature: signature).ThenAsync<EnvelopeReceiverSecretDto, IActionResult>(
-                        SuccessAsync: async er_secret =>
-                        {
-                            async Task<IActionResult> SendSmsView()
-                            {
-                                var res = await _msgService.SendSmsCodeAsync(er_secret.PhoneNumber!, envelopeReceiverId: envelopeReceiverId);
-                                if (res.Ok)
-                                    return View("EnvelopeLocked").WithData("ViaSms", true).WithData("Expiration", res.Expiration);
-                                else if (!res.Allowed)
-                                    return View("EnvelopeLocked").WithData("ViaSms", true).WithData("Expiration", res.AllowedAt);
-                                else
-                                {
-                                    var res_json = JsonConvert.SerializeObject(res);
-                                    _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, message: $"An unexpected error occurred while sending an SMS code. Response: ${res_json}");
-                                    return this.ViewInnerServiceError();
-                                }
-                            }
-
-                            if (auth.HasMulti)
-                            {
-                                Response.StatusCode = StatusCodes.Status401Unauthorized;
-                                return View("EnvelopeLocked")
-                                        .WithData("ErrorMessage", _localizer[WebKey.WrongAccessCode].Value);
-                            }
-                            else if (auth.HasAccessCode)
-                            {
-                                //check the access code verification
-                                if (er_secret.AccessCode != auth.AccessCode)
-                                {
-                                    //Constants.EnvelopeStatus.AccessCodeIncorrect
-                                    await _historyService.RecordAsync(er_secret.EnvelopeId, er_secret.Receiver!.EmailAddress, Constants.EnvelopeStatus.AccessCodeIncorrect);
-                                    Response.StatusCode = StatusCodes.Status401Unauthorized;
-                                    return View("EnvelopeLocked")
-                                            .WithData("ErrorMessage", _localizer[WebKey.WrongAccessCode].Value);
-                                }
-
-                                await _historyService.RecordAsync(er_secret.EnvelopeId, er_secret.Receiver!.EmailAddress, Constants.EnvelopeStatus.AccessCodeCorrect);
-
-                                //check if the user has phone is added
-                                if (er_secret.HasPhoneNumber)
-                                {
-                                    return await SendSmsView();
-                                }
-                            }
-                            else if (auth.HasSmsCode)
-                            {
-                                var smsCode = await _erCache.GetSmsCodeAsync(envelopeReceiverId);
-                                if (smsCode is null)
-                                    return RedirectToAction("EnvelopeLocked", new { envelopeReceiverId });
-
-                                if(auth.SmsCode != smsCode)
-                                {
-                                    Response.StatusCode = StatusCodes.Status401Unauthorized;
-                                    ViewData["ErrorMessage"] = _localizer[WebKey.WrongAccessCode].Value;
-                                    return await SendSmsView();
-                                }
-                            }
-                            else
-                            {
-                                Response.StatusCode = StatusCodes.Status401Unauthorized;
-                                return View("EnvelopeLocked")
-                                        .WithData("ErrorMessage", _localizer[WebKey.WrongAccessCode].Value);
-                            }
-
-                            //continue the process without important data to minimize security errors.
-                            EnvelopeReceiverDto er = er_secret;
-
-							ViewData["EnvelopeKey"] = envelopeReceiverId;
-							//check rejection
-							var rejRcvrs = await _historyService.ReadRejectingReceivers(er.Envelope!.Id);
-                            if(rejRcvrs.Any())
-                            {
-                                ViewBag.IsExt = !rejRcvrs.Contains(er.Receiver);    //external if the current user is not rejected
-                                return View("EnvelopeRejected", er);
-							}                               
-
-                            //check if it has already signed
-                            if (await _historyService.IsSigned(envelopeId: er.Envelope!.Id, userReference: er.Receiver!.EmailAddress))
-                                return View("EnvelopeSigned");
-
-                            if (er.Envelope.Documents?.FirstOrDefault() is EnvelopeDocumentDto doc && doc.ByteData is not null)
-                            {
-                                ViewData["DocumentBytes"] = doc.ByteData;
-                            }
-                            else
-                            {
-                                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, message: "No document byte-data was found in ENVELOPE_DOCUMENT table.");
-								return this.ViewDocumentNotFound();
-							}
-
-                            var claims = new List<Claim> {
-                                            new(ClaimTypes.NameIdentifier, uuid),
-                                            new(ClaimTypes.Hash, signature),
-                                            new(ClaimTypes.Name, er.Name ?? string.Empty),
-                                            new(ClaimTypes.Email, er.Receiver.EmailAddress),
-                                            new(EnvelopeClaimTypes.Title, er.Envelope.Title),
-                                            new(EnvelopeClaimTypes.Id, er.Envelope.Id.ToString())
-                            };
-
-                            var claimsIdentity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
-                            var authProperties = new AuthenticationProperties
-                            {
-                                AllowRefresh = false,
-                                IsPersistent = false
-                            };
-
-                            await HttpContext.SignInAsync(
-                                CookieAuthenticationDefaults.AuthenticationScheme,
-                                new ClaimsPrincipal(claimsIdentity),
-                                authProperties);
-
-                            //add PSPDFKit licence key
-                            ViewData["PSPDFKitLicenseKey"] = _configuration["PSPDFKitLicenseKey"];
-
-                            return View("ShowEnvelope", er);
-                        },
-                        Fail: (messages, notices) =>
-                        {
-                            _logger.LogNotice(notices);
-                            return this.ViewEnvelopeNotFound();
-                        }
-                    );
-            }
-            catch (Exception ex)
-            {
-                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
-                return this.ViewInnerServiceError();
-            }
-        }
-
-        [Authorize]
-        [HttpGet("EnvelopeKey/{envelopeReceiverId}/Success")]
-        public async Task<IActionResult> EnvelopeSigned(string envelopeReceiverId)
-        {
-            try
-            {
-                envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
-                return await _envRcvService.IsExisting(envelopeReceiverId: envelopeReceiverId).ThenAsync(
-                    SuccessAsync: async isExisting =>
-                    {
-                        if(!isExisting)
-                            return this.ViewEnvelopeNotFound();
-
-                        EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeReceiverId);
-                        if (!envelopeOldService.ReceiverAlreadySigned(response.Envelope, response.Receiver.Id))
-                            return Redirect($"/EnvelopeKey/{envelopeReceiverId}/Locked");
-
-                        await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
-                        ViewData["UserCulture"] = _cultures[UserLanguage];
-                        ViewData["EnvelopeKey"] = envelopeReceiverId;
-                        return View();
-                    },
-                    Fail: IActionResult (messages, notices) =>
-                    {
-                        _logger.LogNotice(notices);
-                        return this.ViewEnvelopeNotFound();
-                    });
-            }
-            catch (Exception ex)
-            {
-                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
-                return this.ViewInnerServiceError();
-            }
-        }
-
-        [Authorize]
-        [HttpGet("EnvelopeKey/{envelopeReceiverId}/Rejected")]
-        public async Task<IActionResult> EnvelopeRejected(string envelopeReceiverId)
-        {
-            try
-            {
-                envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
-
-                await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
-                return await _envRcvService.ReadByEnvelopeReceiverIdAsync(envelopeReceiverId).ThenAsync(
-                    SuccessAsync: async (er) =>
-                    {ViewData["UserCulture"] = _cultures[UserLanguage];
-                        ViewData["UserCulture"] = _cultures[UserLanguage];
-                        return await _historyService.IsRejected(envelopeId: er.EnvelopeId)
-                            ? View(er)
-                            : Redirect($"/EnvelopeKey/{envelopeReceiverId}/Locked");
-
-                    },
-                    Fail: IActionResult (messages, notices) =>
-                    {
-                        _logger.LogNotice(notices);
-                        return this.ViewEnvelopeNotFound();
-                    });
-            }
-            catch (Exception ex)
-            {
-                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
-                return this.ViewInnerServiceError();
-            }
-        }
-
-        [HttpGet("EnvelopeKey/{readOnlyKey}/ReadOnly")]
-        public async Task<IActionResult> EnvelopeReceiverReadOnly([FromRoute] string readOnlyKey)
-        {
-            try
-            {
-                ViewData["UserCulture"] = _cultures[UserLanguage];
-
-                readOnlyKey = _sanitizer.Sanitize(readOnlyKey);
-
-                // check if the readOnlyId is valid
-                if (!readOnlyKey.TryDecode(out var decodedKeys) || decodedKeys.GetEncodeType() != EncodeType.EnvelopeReceiverReadOnly)
-                {
-                    Response.StatusCode = StatusCodes.Status401Unauthorized;
-                    return this.ViewDocumentNotFound();
-                }
-
-                var readOnlyId = decodedKeys.ParseReadOnlyId();
-                var erro_res = await _readOnlyService.ReadByIdAsync(readOnlyId);
-                if (erro_res.IsFailed)
-                {
-                    _logger.LogNotice(erro_res.Notices);
-                    return this.ViewInnerServiceError();
-                }
-
-                var erro = erro_res.Data;
-
-                if (DateTime.Now > erro.DateValid)
-                    return View("EnvelopeExpired");
-
-                return await _envRcvService.ReadByUuidSignatureAsync(uuid: erro.Envelope!.Uuid, erro.Receiver!.Signature).ThenAsync(
+            return await _envRcvService.ReadByEnvelopeReceiverIdAsync(envelopeReceiverId: envelopeReceiverId).ThenAsync<EnvelopeReceiverDto, IActionResult>(
                 SuccessAsync: async er =>
                 {
-                    var envelopeKey = (er.Envelope!.Uuid, er.Receiver!.Signature).EncodeEnvelopeReceiverId();
-                    
-                    EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeKey);
+                    EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeReceiverId);
 
-                    //TODO: implement multi-threading to history process (Task)
-                    var hist_res = await _historyService.RecordAsync((int)erro.EnvelopeId, erro.AddedWho, EnvelopeStatus.EnvelopeViewed);
-                    if (hist_res.IsFailed)
+                    bool accessCodeAlreadyRequested = await _historyService.AccessCodeAlreadyRequested(envelopeId: er.Envelope!.Id, userReference: er.Receiver!.EmailAddress);
+                    if (!accessCodeAlreadyRequested)
                     {
-                        _logger.LogError(
-                            "Although the envelope was sent as read-only, the EnvelopeShared hisotry could not be saved. ReadOnly-key: {readOnlyKey}\nEnvelope Receiver:\n{envelopeReceiver}",
-                            readOnlyKey, JsonConvert.SerializeObject(er));
-                        _logger.LogNotice(hist_res.Notices);
+                        await _historyService.RecordAsync(er.EnvelopeId, er.Receiver.EmailAddress, EnvelopeStatus.AccessCodeRequested);
+
+                        var mailRes = await _mailService.SendAccessCodeAsync(envelopeReceiverDto: er);
+                        if (mailRes.IsFailed)
+                        {
+                            _logger.LogNotice(mailRes);
+                            return this.ViewAccessCodeNotSent();
+                        }
                     }
 
-                    if (er.Envelope.Documents?.FirstOrDefault() is EnvelopeDocumentDto doc && doc.ByteData is not null)
-                    {
-                        ViewData["DocumentBytes"] = doc.ByteData;
-                        ViewData["EnvelopeKey"] = envelopeKey;
-                        ViewData["IsReadOnly"] = true;
-                        ViewData["ReadOnly"] = erro;
-                        ViewData["PSPDFKitLicenseKey"] = _configuration["PSPDFKitLicenseKey"];
-                        return View("ShowEnvelope", er);
-                    }
-                    else
-                    {
-                        _logger.LogEnvelopeError(envelopeReceiverId: envelopeKey, message: "No document byte-data was found in ENVELOPE_DOCUMENT table.");
-                        return this.ViewDocumentNotFound();
-                    }
+                    return Redirect($"{envelopeReceiverId}/Locked");
                 },
                 Fail: (messages, notices) =>
                 {
                     _logger.LogNotice(notices);
                     return this.ViewEnvelopeNotFound();
                 });
-            }
-            catch (Exception ex)
+        }
+        catch(Exception ex)
+        {
+            _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception:ex, message: _localizer[WebKey.UnexpectedError]);
+            return this.ViewInnerServiceError();
+        }
+    }
+
+    [HttpGet("EnvelopeKey/{envelopeReceiverId}/Locked")]
+    public async Task<IActionResult> EnvelopeLocked([FromRoute] string envelopeReceiverId)
+    {
+        try
+        {
+            ViewData["UserCulture"] = _cultures[UserLanguage];
+
+            return await _envRcvService.ReadByEnvelopeReceiverIdAsync(envelopeReceiverId: envelopeReceiverId).ThenAsync(
+                Success: er => View()
+                    .WithData("EnvelopeKey", envelopeReceiverId)
+                    .WithData("TFAEnabled", er.Envelope!.TFAEnabled)
+                    .WithData("HasPhoneNumber", er.HasPhoneNumber)
+                    .WithData("SenderEmail", er.Envelope.User!.Email)
+                    .WithData("EnvelopeTitle", er.Envelope.Title),
+                Fail: IActionResult (messages, notices) =>
+                {
+                    _logger.LogNotice(notices);
+                    Response.StatusCode = StatusCodes.Status401Unauthorized;
+                    return this.ViewEnvelopeNotFound();
+                });
+        }
+        catch(Exception ex)
+        {
+            _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
+            return this.ViewInnerServiceError();
+        }
+    }
+
+    #region TFA Views
+    [NonAction]
+    private async Task<IActionResult> TFAViewAsync(bool viaSms, EnvelopeReceiverSecretDto er_secret, string envelopeReceiverId)
+    {
+        if (viaSms)
+        {
+            var (smsRes, expiration) = await _envSmsHandler.SendTotpAsync(er_secret);
+
+            ViewData["EnvelopeKey"] = envelopeReceiverId;
+            ViewData["TFAEnabled"] = er_secret.Envelope!.TFAEnabled;
+            ViewData["HasPhoneNumber"] = er_secret.HasPhoneNumber;
+            ViewData["SenderEmail"] = er_secret.Envelope.User!.Email;
+            ViewData["EnvelopeTitle"] = er_secret.Envelope.Title;
+
+            if (smsRes?.Failed ?? false)
             {
-                _logger.LogError(ex, "An unexpected error occurred while displaying a read-only envelope. Read-only key is {readOnlyKey}. {message}", readOnlyKey, ex.Message);
+                var res_json = JsonConvert.SerializeObject(smsRes);
+                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, message: $"An unexpected error occurred while sending an SMS code. Response: ${res_json}");
                 return this.ViewInnerServiceError();
             }
+
+            return View("EnvelopeLocked").WithData("CodeType", "smsCode").WithData("SmsExpiration", expiration);
+        }
+        else
+        {
+            return View("EnvelopeLocked")
+                .WithData("CodeType", "authenticatorCode")
+                .WithData("TfaRegDeadline", er_secret.Receiver?.TfaRegDeadline);
+        }
+    }
+
+    [NonAction]
+    private async Task<IActionResult?> HandleAccessCodeAsync(Auth auth, EnvelopeReceiverSecretDto er_secret, string envelopeReceiverId)
+    {
+        //check the access code verification
+        if (er_secret.AccessCode != auth.AccessCode)
+        {
+            //Constants.EnvelopeStatus.AccessCodeIncorrect
+            await _historyService.RecordAsync(er_secret.EnvelopeId, er_secret.Receiver!.EmailAddress, EnvelopeStatus.AccessCodeIncorrect);
+            Response.StatusCode = StatusCodes.Status401Unauthorized;
+            return View("EnvelopeLocked")
+                    .WithData("EnvelopeKey", envelopeReceiverId)
+                    .WithData("TFAEnabled", er_secret.Envelope!.TFAEnabled)
+                    .WithData("HasPhoneNumber", er_secret.HasPhoneNumber)
+                    .WithData("SenderEmail", er_secret.Envelope.User!.Email)
+                    .WithData("EnvelopeTitle", er_secret.Envelope.Title)
+                    .WithData("ErrorMessage", _localizer[WebKey.WrongAccessCode].Value);
         }
 
-        [Authorize]
-        [HttpGet("IsAuthenticated")]
-        public IActionResult IsAuthenticated()
+        await _historyService.RecordAsync(er_secret.EnvelopeId, er_secret.Receiver!.EmailAddress, EnvelopeStatus.AccessCodeCorrect);
+
+        //check if the user has phone is added
+        if (er_secret.Envelope!.TFAEnabled)
         {
-            var envelopeUuid = User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
-            var receiverSignature = User.FindFirst(ClaimTypes.Hash)?.Value;
-            return Ok(new { EnvelopeUuid = envelopeUuid, ReceiverSignature = receiverSignature });
+            var rcv = er_secret.Receiver;
+            if (rcv.TotpSecretkey is null)
+            {
+                rcv.TotpSecretkey = _authenticator.GenerateTotpSecretKey();
+                await _rcvService.UpdateAsync(rcv);
+            }
+
+            await HttpContext.SignInEnvelopeAsync(er_secret, ReceiverRole.PreAuth);
+
+            return await TFAViewAsync(auth.UserSelectSMS, er_secret, envelopeReceiverId);
         }
 
-        [HttpPost("lang/{language}")]
-        public IActionResult SetLanguage([FromRoute] string language)
+        return null;
+    }
+
+    [NonAction]
+    private async Task<IActionResult?> HandleSmsAsync(Auth auth, EnvelopeReceiverSecretDto er_secret, string envelopeReceiverId)
+    {
+        if (er_secret.Receiver!.TotpSecretkey is null)
+            throw new InvalidOperationException($"TotpSecretkey of DTO cannot validate without TotpSecretkey. Dto: {JsonConvert.SerializeObject(er_secret)}");
+        
+        if (!User.IsInRole(ReceiverRole.PreAuth) || !_envSmsHandler.VerifyTotp(auth.SmsCode!, er_secret.Receiver.TotpSecretkey))
         {
-            try
-            {
-                language = _sanitizer.Sanitize(language);
-                if (!_cultures.Languages.Contains(language))
-                    return BadRequest();
-
-                UserLanguage = language;
-
-                return Redirect(Request.Headers["Referer"].ToString());
-            }
-            catch(Exception ex)
-            {
-                _logger.LogError(ex, "{Message}", ex.Message);
-                return StatusCode(statusCode: StatusCodes.Status500InternalServerError);
-            }
+            Response.StatusCode = StatusCodes.Status401Unauthorized;
+            ViewData["ErrorMessage"] = _localizer[WebKey.WrongAccessCode].Value;
+            return await TFAViewAsync(viaSms: true, er_secret, envelopeReceiverId);
         }
 
-        [HttpGet("lang")]
-        public IActionResult GetLanguages() => Ok(_cultures.Languages);
+        return null;
+    }
 
-        private string? UserLanguage
+    [NonAction]
+    private async Task<IActionResult?> HandleAuthenticatorAsync(Auth auth, EnvelopeReceiverSecretDto er_secret, string envelopeReceiverId)
+    {
+        if (er_secret.Receiver!.TotpSecretkey is null)
+            throw new InvalidOperationException($"TotpSecretkey of DTO cannot validate without TotpSecretkey. Dto: {JsonConvert.SerializeObject(er_secret)}");
+
+        if (!User.IsInRole(ReceiverRole.PreAuth) || !_authenticator.VerifyTotp(auth.AuthenticatorCode!, er_secret.Receiver.TotpSecretkey, window: VerificationWindow.RfcSpecifiedNetworkDelay))
         {
-            get
+            Response.StatusCode = StatusCodes.Status401Unauthorized;
+            ViewData["ErrorMessage"] = _localizer[WebKey.WrongAccessCode].Value;
+            return await TFAViewAsync(viaSms: false, er_secret, envelopeReceiverId);
+        }
+
+        return null;
+    }
+    #endregion
+
+    [HttpPost("EnvelopeKey/{envelopeReceiverId}/Locked")]
+    public async Task<IActionResult> LogInEnvelope([FromRoute] string envelopeReceiverId, [FromForm] Auth auth)
+    {
+        try
+        {
+            ViewData["UserCulture"] = _cultures[UserLanguage];
+            ViewData["EnvelopeKey"] = envelopeReceiverId;
+
+            envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
+            (string? uuid, string? signature) = envelopeReceiverId.DecodeEnvelopeReceiverId();
+
+            if (uuid is null || signature is null)
             {
-                var cookieValue = Request.Cookies[CookieRequestCultureProvider.DefaultCookieName];
-
-                if (string.IsNullOrEmpty(cookieValue))
-                    return null;    
-
-                var culture = CookieRequestCultureProvider.ParseCookieValue(cookieValue)?.Cultures[0];
-                return culture?.Value ?? null;
+                _logger.LogEnvelopeError(uuid: uuid, signature: signature, message: _localizer[WebKey.WrongEnvelopeReceiverId]);
+                return Unauthorized();
             }
-            set
+
+            _logger.LogInformation("Envelope UUID: [{uuid}]\nReceiver Signature: [{signature}]", uuid, signature);
+
+            //check access code
+            EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeReceiverId);
+
+            var er_secret_res = await _envRcvService.ReadWithSecretByUuidSignatureAsync(uuid: uuid, signature: signature);
+
+            if (er_secret_res.IsFailed)
             {
-                if(value is null)
-                    Response.Cookies.Delete(CookieRequestCultureProvider.DefaultCookieName);
+                _logger.LogNotice(er_secret_res.Notices);
+                return this.ViewEnvelopeNotFound();
+            }
+            var er_secret = er_secret_res.Data;
+
+            if (auth.HasMulti)
+            {
+                return Unauthorized();
+            }
+            else if (auth.HasAccessCode)
+            {
+                if (await HandleAccessCodeAsync(auth, er_secret, envelopeReceiverId) is IActionResult acView)
+                    return acView;
+            }
+            else if (auth.HasSmsCode)
+            {
+                if (await HandleSmsAsync(auth, er_secret, envelopeReceiverId) is IActionResult smsView)
+                    return smsView;
+            }
+            else if (auth.HasAuthenticatorCode)
+            {
+                if(await HandleAuthenticatorAsync(auth, er_secret, envelopeReceiverId) is IActionResult aView)
+                    return aView;
+            }
+            else
+            {
+                Response.StatusCode = StatusCodes.Status401Unauthorized;
+                return View("EnvelopeLocked")
+                        .WithData("EnvelopeKey", envelopeReceiverId)
+                        .WithData("TFAEnabled", er_secret.Envelope!.TFAEnabled)
+                        .WithData("HasPhoneNumber", er_secret.HasPhoneNumber)
+                        .WithData("SenderEmail", er_secret.Envelope.User!.Email)
+                        .WithData("EnvelopeTitle", er_secret.Envelope.Title)
+                        .WithData("ErrorMessage", _localizer[WebKey.WrongAccessCode].Value);
+            }
+
+            //continue the process without important data to minimize security errors.
+            EnvelopeReceiverDto er = er_secret;
+
+            //check rejection
+            var rejRcvrs = await _historyService.ReadRejectingReceivers(er.Envelope!.Id);
+            if(rejRcvrs.Any())
+            {
+                ViewBag.IsExt = !rejRcvrs.Contains(er.Receiver);    //external if the current user is not rejected
+                return View("EnvelopeRejected", er);
+            }
+
+            //check if it has already signed
+            if (await _historyService.IsSigned(envelopeId: er.Envelope!.Id, userReference: er.Receiver!.EmailAddress))
+                return View("EnvelopeSigned");
+
+            if (er.Envelope.Documents?.FirstOrDefault() is EnvelopeDocumentDto doc && doc.ByteData is not null)
+            {
+                ViewData["DocumentBytes"] = doc.ByteData;
+            }
+            else
+            {
+                _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, message: "No document byte-data was found in ENVELOPE_DOCUMENT table.");
+                return this.ViewDocumentNotFound();
+            }
+                        
+            await HttpContext.SignInEnvelopeAsync(er, ReceiverRole.FullyAuth);
+
+            //add PSPDFKit licence key
+            ViewData["PSPDFKitLicenseKey"] = _configuration["PSPDFKitLicenseKey"];
+
+            return View("ShowEnvelope", er);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
+            return this.ViewInnerServiceError();
+        }
+    }
+    
+    [Authorize(Roles = ReceiverRole.FullyAuth)]
+    [HttpGet("EnvelopeKey/{envelopeReceiverId}/Success")]
+    public async Task<IActionResult> EnvelopeSigned(string envelopeReceiverId)
+    {
+        try
+        {
+            envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
+            return await _envRcvService.IsExisting(envelopeReceiverId: envelopeReceiverId).ThenAsync(
+                SuccessAsync: async isExisting =>
+                {
+                    if(!isExisting)
+                        return this.ViewEnvelopeNotFound();
+
+                    EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeReceiverId);
+                    if (!envelopeOldService.ReceiverAlreadySigned(response.Envelope, response.Receiver.Id))
+                        return Redirect($"/EnvelopeKey/{envelopeReceiverId}/Locked");
+
+                    await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+                    ViewData["UserCulture"] = _cultures[UserLanguage];
+                    ViewData["EnvelopeKey"] = envelopeReceiverId;
+                    return View();
+                },
+                Fail: IActionResult (messages, notices) =>
+                {
+                    _logger.LogNotice(notices);
+                    return this.ViewEnvelopeNotFound();
+                });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
+            return this.ViewInnerServiceError();
+        }
+    }
+
+    [Authorize(Roles = ReceiverRole.FullyAuth)]
+    [HttpGet("EnvelopeKey/{envelopeReceiverId}/Rejected")]
+    public async Task<IActionResult> EnvelopeRejected(string envelopeReceiverId)
+    {
+        try
+        {
+            envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
+
+            await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+            return await _envRcvService.ReadByEnvelopeReceiverIdAsync(envelopeReceiverId).ThenAsync(
+                SuccessAsync: async (er) =>
+                {
+                    ViewData["UserCulture"] = _cultures[UserLanguage];
+                    ViewData["UserCulture"] = _cultures[UserLanguage];
+                    return await _historyService.IsRejected(envelopeId: er.EnvelopeId)
+                        ? View(er)
+                        : Redirect($"/EnvelopeKey/{envelopeReceiverId}/Locked");
+
+                },
+                Fail: IActionResult (messages, notices) =>
+                {
+                    _logger.LogNotice(notices);
+                    return this.ViewEnvelopeNotFound();
+                });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex);
+            return this.ViewInnerServiceError();
+        }
+    }
+
+    [HttpGet("EnvelopeKey/{readOnlyKey}/ReadOnly")]
+    public async Task<IActionResult> EnvelopeReceiverReadOnly([FromRoute] string readOnlyKey)
+    {
+        try
+        {
+            ViewData["UserCulture"] = _cultures[UserLanguage];
+
+            readOnlyKey = _sanitizer.Sanitize(readOnlyKey);
+
+            // check if the readOnlyId is valid
+            if (!readOnlyKey.TryDecode(out var decodedKeys) || decodedKeys.GetEncodeType() != EncodeType.EnvelopeReceiverReadOnly)
+            {
+                Response.StatusCode = StatusCodes.Status401Unauthorized;
+                return this.ViewDocumentNotFound();
+            }
+
+            var readOnlyId = decodedKeys.ParseReadOnlyId();
+            var erro_res = await _readOnlyService.ReadByIdAsync(readOnlyId);
+            if (erro_res.IsFailed)
+            {
+                _logger.LogNotice(erro_res.Notices);
+                return this.ViewInnerServiceError();
+            }
+
+            var erro = erro_res.Data;
+
+            if (DateTime.Now > erro.DateValid)
+                return View("EnvelopeExpired");
+
+            return await _envRcvService.ReadByUuidSignatureAsync(uuid: erro.Envelope!.Uuid, erro.Receiver!.Signature).ThenAsync(
+            SuccessAsync: async er =>
+            {
+                var envelopeKey = (er.Envelope!.Uuid, er.Receiver!.Signature).EncodeEnvelopeReceiverId();
+
+                EnvelopeResponse response = await envelopeOldService.LoadEnvelope(envelopeKey);
+
+                //TODO: implement multi-threading to history process (Task)
+                var hist_res = await _historyService.RecordAsync((int)erro.EnvelopeId, erro.AddedWho, EnvelopeStatus.EnvelopeViewed);
+                if (hist_res.IsFailed)
+                {
+                    _logger.LogError(
+                        "Although the envelope was sent as read-only, the EnvelopeShared hisotry could not be saved. ReadOnly-key: {readOnlyKey}\nEnvelope Receiver:\n{envelopeReceiver}",
+                        readOnlyKey, JsonConvert.SerializeObject(er));
+                    _logger.LogNotice(hist_res.Notices);
+                }
+
+                if (er.Envelope.Documents?.FirstOrDefault() is EnvelopeDocumentDto doc && doc.ByteData is not null)
+                {
+                    ViewData["DocumentBytes"] = doc.ByteData;
+                    ViewData["EnvelopeKey"] = envelopeKey;
+                    ViewData["IsReadOnly"] = true;
+                    ViewData["ReadOnly"] = erro;
+                    ViewData["PSPDFKitLicenseKey"] = _configuration["PSPDFKitLicenseKey"];
+                    return View("ShowEnvelope", er);
+                }
                 else
                 {
-                    var cookieOptions = new CookieOptions()
-                    {
-                        Expires = DateTimeOffset.UtcNow.AddYears(1),
-                        Secure = false,
-                        SameSite = SameSiteMode.Strict,
-                        HttpOnly = true
-                    };
-
-                    Response.Cookies.Append(
-                        CookieRequestCultureProvider.DefaultCookieName,
-                        CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(value)),
-                        cookieOptions);
+                    _logger.LogEnvelopeError(envelopeReceiverId: envelopeKey, message: "No document byte-data was found in ENVELOPE_DOCUMENT table.");
+                    return this.ViewDocumentNotFound();
                 }
+            },
+            Fail: (messages, notices) =>
+            {
+                _logger.LogNotice(notices);
+                return this.ViewEnvelopeNotFound();
+            });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "An unexpected error occurred while displaying a read-only envelope. Read-only key is {readOnlyKey}. {message}", readOnlyKey, ex.Message);
+            return this.ViewInnerServiceError();
+        }
+    }
+
+    [Authorize(Roles = ReceiverRole.FullyAuth)]
+    [HttpGet("IsAuthenticated")]
+    public IActionResult IsAuthenticated()
+    {
+        var envelopeUuid = User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
+        var receiverSignature = User.FindFirst(ClaimTypes.Hash)?.Value;
+        return Ok(new { EnvelopeUuid = envelopeUuid, ReceiverSignature = receiverSignature });
+    }
+
+    [HttpPost("lang/{language}")]
+    public IActionResult SetLanguage([FromRoute] string language)
+    {
+        try
+        {
+            language = _sanitizer.Sanitize(language);
+            if (!_cultures.Languages.Contains(language))
+                return BadRequest();
+
+            UserLanguage = language;
+
+            return Redirect(Request.Headers["Referer"].ToString());
+        }
+        catch(Exception ex)
+        {
+            _logger.LogError(ex, "{Message}", ex.Message);
+            return StatusCode(statusCode: StatusCodes.Status500InternalServerError);
+        }
+    }
+
+    [HttpGet("lang")]
+    public IActionResult GetLanguages() => Ok(_cultures.Languages);
+
+    private string? UserLanguage
+    {
+        get
+        {
+            var cookieValue = Request.Cookies[CookieRequestCultureProvider.DefaultCookieName];
+
+            if (string.IsNullOrEmpty(cookieValue))
+                return null;
+
+            var culture = CookieRequestCultureProvider.ParseCookieValue(cookieValue)?.Cultures[0];
+            return culture?.Value ?? null;
+        }
+        set
+        {
+            if(value is null)
+                Response.Cookies.Delete(CookieRequestCultureProvider.DefaultCookieName);
+            else
+            {
+                var cookieOptions = new CookieOptions()
+                {
+                    Expires = DateTimeOffset.UtcNow.AddYears(1),
+                    Secure = false,
+                    SameSite = SameSiteMode.Strict,
+                    HttpOnly = true
+                };
+
+                Response.Cookies.Append(
+                    CookieRequestCultureProvider.DefaultCookieName,
+                    CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(value)),
+                    cookieOptions);
             }
         }
-
-        public IActionResult Error404() => this.ViewError404();
     }
+
+    public IActionResult Error404() => this.ViewError404();
 }

EnvelopeGenerator.Web/Controllers/ReadOnlyController.cs

@@ -4,6 +4,7 @@ using EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json;
+using static EnvelopeGenerator.Common.Constants;
 
 namespace EnvelopeGenerator.Web.Controllers
 {
@@ -28,7 +29,7 @@ namespace EnvelopeGenerator.Web.Controllers
         }
 
         [HttpPost]
-        [Authorize]
+        [Authorize(Roles = ReceiverRole.FullyAuth)]
         public async Task<IActionResult> CreateAsync([FromBody] EnvelopeReceiverReadOnlyCreateDto createDto)
         {
             try

EnvelopeGenerator.Web/Controllers/TFARegController.cs

@@ -0,0 +1,87 @@
+using EnvelopeGenerator.Application.Contracts;
+using EnvelopeGenerator.Web.Models;
+using Ganss.Xss;
+using Microsoft.AspNetCore.Mvc;
+using EnvelopeGenerator.Extensions;
+using Microsoft.Extensions.Localization;
+using EnvelopeGenerator.Application.Resources;
+using DigitalData.Core.DTO;
+using EnvelopeGenerator.Application.Extensions;
+using Microsoft.Extensions.Options;
+using Microsoft.AspNetCore.Authorization;
+
+namespace EnvelopeGenerator.Web.Controllers;
+
+//TODO: Add authorization as well as limiting the link duration (intermediate token with different role) or sign it
+[Route("tfa")]
+public class TFARegController : ViewControllerBase
+{
+    private readonly IEnvelopeReceiverService _envRcvService;
+    private readonly IAuthenticator _authenticator;
+    private readonly IReceiverService _rcvService;
+    private readonly TFARegParams _params;
+
+    public TFARegController(ILogger<TFARegController> logger, HtmlSanitizer sanitizer, Cultures cultures, IStringLocalizer<Resource> localizer, IEnvelopeReceiverService erService, IAuthenticator authenticator, IReceiverService receiverService, IOptions<TFARegParams> tfaRegParamsOptions) : base(logger, sanitizer, cultures, localizer)
+    {
+        _envRcvService = erService;
+        _authenticator = authenticator;
+        _rcvService = receiverService;
+        _params = tfaRegParamsOptions.Value;
+    }
+
+    [Authorize]
+    [HttpGet("{envelopeReceiverId}")]
+    public async Task<IActionResult> Reg(string envelopeReceiverId)
+    {
+        try
+        {
+            envelopeReceiverId = _sanitizer.Sanitize(envelopeReceiverId);
+            (string? uuid, string? signature) = envelopeReceiverId.DecodeEnvelopeReceiverId();
+
+            if (uuid is null || signature is null)
+            {
+                _logger.LogEnvelopeError(uuid: uuid, signature: signature, message: _localizer[WebKey.WrongEnvelopeReceiverId]);
+                return Unauthorized();
+            }
+
+            var er_secret_res = await _envRcvService.ReadWithSecretByUuidSignatureAsync(uuid: uuid, signature: signature);
+
+            if (er_secret_res.IsFailed)
+            {
+                _logger.LogNotice(er_secret_res.Notices);
+                return this.ViewEnvelopeNotFound();
+            }
+            var er_secret = er_secret_res.Data;
+
+            if (!er_secret.Envelope!.TFAEnabled)
+                return Unauthorized();
+
+            var rcv = er_secret.Receiver;
+
+            // Generate QR code as base 64
+            rcv!.TotpSecretkey = _authenticator.GenerateTotpSecretKey();
+            await _rcvService.UpdateAsync(rcv);
+            var totp_qr_64 = _authenticator.GenerateTotpQrCode(userEmail: rcv.EmailAddress, secretKey: rcv.TotpSecretkey).ToBase64String();
+
+            // Calculate RFA registiration deadline
+            if (rcv.TfaRegDeadline is null)
+            {
+                rcv.TfaRegDeadline = _params.Deadline;
+                await _rcvService.UpdateAsync(rcv);
+            }
+            else if (rcv.TfaRegDeadline <= DateTime.Now)
+                return View("_Expired");
+
+            ViewData["RegDeadline"] = rcv.TfaRegDeadline;
+
+            ViewData["TotpQR64"] = totp_qr_64;
+
+            return View();
+        }
+        catch(Exception ex)
+        {
+            _logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex, message: _localizer[WebKey.UnexpectedError]);
+            return this.ViewInnerServiceError();
+        }
+    }
+}

EnvelopeGenerator.Web/Controllers/Test/TestAuthController.cs

@@ -1,42 +0,0 @@
-using EnvelopeGenerator.Application.Contracts;
-using EnvelopeGenerator.Application.Services;
-using Microsoft.AspNetCore.Authorization;
-using Microsoft.AspNetCore.Mvc;
-using System.Security.Claims;
-
-namespace EnvelopeGenerator.Web.Controllers.Test
-{
-    [ApiController]
-    [Route("api/test/[controller]")]
-    public class TestAuthController : ControllerBase
-    {
-        private readonly IJWTService<string> _authService;
-
-        public TestAuthController(IJWTService<string> authService)
-        {
-            _authService = authService;
-        }
-
-        [HttpPost]
-        public IActionResult ProvideToken([FromQuery] string value)
-        {
-            var token = _authService.GenerateToken(value);
-            return Ok(token);
-        }
-
-        [HttpGet]
-        public IActionResult GetSecurityToken([FromQuery] string token)
-        {
-            var sToken = _authService.ReadSecurityToken(token);
-            return Ok(sToken);
-        }
-
-        [HttpGet("Username")]
-        [Authorize]
-        public IActionResult Getname()
-        {
-            var username = User.Claims?.FirstOrDefault(c => c.Type == ClaimTypes.Name)?.Value;
-            return Ok(username);
-        }
-    }
-}

EnvelopeGenerator.Web/Controllers/Test/TestMessagingController.cs

@@ -7,9 +7,9 @@ namespace EnvelopeGenerator.Web.Controllers.Test
     [ApiController]
     public class TestMessagingController : ControllerBase
     {
-        private readonly IMessagingService _service;
+        private readonly ISmsSender _service;
 
-        public TestMessagingController(IMessagingService service)
+        public TestMessagingController(ISmsSender service)
         {
             _service = service;
         }

EnvelopeGenerator.Web/Controllers/ViewControllerBase.cs

@@ -0,0 +1,23 @@
+using EnvelopeGenerator.Web.Models;
+using Ganss.Xss;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Localization;
+using EnvelopeGenerator.Application.Resources;
+
+namespace EnvelopeGenerator.Web.Controllers;
+
+public class ViewControllerBase : Controller
+{
+    protected readonly ILogger _logger;
+    protected readonly HtmlSanitizer _sanitizer;
+    protected readonly Cultures _cultures;
+    protected readonly IStringLocalizer<Resource> _localizer;
+
+    public ViewControllerBase(ILogger logger, HtmlSanitizer sanitizer, Cultures cultures, IStringLocalizer<Resource> localizer)
+    {
+        _logger = logger;
+        _sanitizer = sanitizer;
+        _cultures = cultures;
+        _localizer = localizer;
+    }
+}

EnvelopeGenerator.Web/Models/Auth.cs

@@ -1,13 +1,15 @@
 namespace EnvelopeGenerator.Web.Models
 {
-    public record Auth(string? AccessCode = null, string? SmsCode = null)
+    public record Auth(string? AccessCode = null, string? SmsCode = null, string? AuthenticatorCode = null, bool UserSelectSMS = default)
     {
         public bool HasAccessCode => AccessCode is not null;
 
         public bool HasSmsCode => SmsCode is not null;
 
-        public bool HasMulti => HasAccessCode && HasSmsCode;
+        public bool HasAuthenticatorCode => AuthenticatorCode is not null;
 
-        public bool HasNone => !(HasAccessCode || HasSmsCode);
+        public bool HasMulti => new[] { HasAccessCode, HasSmsCode, HasAuthenticatorCode }.Count(state => state) > 1;
+
+        public bool HasNone => !(HasAccessCode || HasSmsCode || HasAuthenticatorCode);
     }
 }

EnvelopeGenerator.Web/Models/TFARegParams.cs

@@ -0,0 +1,17 @@
+namespace EnvelopeGenerator.Web.Models;
+
+/// <summary>
+/// Represents the parameters for two-factor authentication (2FA) registration.
+/// </summary>
+public class TFARegParams
+{
+    /// <summary>
+    /// The maximum allowed time for completing the registration process.
+    /// </summary>
+    public TimeSpan TimeLimit { get; init; } = new(0, 30, 0);
+
+    /// <summary>
+    /// The deadline for registration, calculated as the current time plus the <see cref="TimeLimit"/>.
+    /// </summary>
+    public DateTime Deadline => DateTime.Now.AddTicks(TimeLimit.Ticks);
+}

EnvelopeGenerator.Web/Program.cs

@@ -49,6 +49,8 @@ try
     // Add higher order services
     builder.Services.AddScoped<EnvelopeOldService>();
 
+    builder.ConfigureBySection<TFARegParams>();
+
     // Add controllers and razor views
     builder.Services.AddControllersWithViews(options =>
     {