feat(GtxMessagingService): Zwischenspeicherung für SMS-Code und Ablauf des SMS-Codes mittels Envelope-Receiver-ID hinzugefügt

- Erweiterungsmethode für Zeitcaching hinzugefügt.

EnvelopeGenerator.Application/Configurations/GtxMessaging/SmsParams.cs

@@ -1,4 +1,5 @@
 using DigitalData.Core.Abstractions.Client;
+using Microsoft.Extensions.Caching.Distributed;
 
 namespace EnvelopeGenerator.Application.Configurations.GtxMessaging
 {
@@ -20,5 +21,19 @@ namespace EnvelopeGenerator.Application.Configurations.GtxMessaging
         public string MessageQueryParamName { get; init; } = "text";
 
         public int CodeLength { get; init; } = 5;
+
+        /// <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/Contracts/IMessagingService.cs

@@ -8,6 +8,6 @@ namespace EnvelopeGenerator.Application.Contracts
 
         Task<SmsResponse> SendSmsAsync(string recipient, string message);
 
-        Task<SmsResponse> SendSmsCodeAsync(string recipient);
+        Task<SmsResponse> SendSmsCodeAsync(string recipient, string envelopeReceiverId);
     }
 }

EnvelopeGenerator.Application/Extensions/CacheExtensions.cs

@@ -0,0 +1,43 @@
+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)
+            => options is null
+                ? cache.SetAsync(key, BitConverter.GetBytes(value))
+                : cache.SetAsync(key, BitConverter.GetBytes(value), options: options);
+
+        public static async Task<long?> GetLongAsync(this IDistributedCache cache, string key)
+        {
+            var value = await cache.GetAsync(key);
+            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 async Task<DateTime?> GetDateTimeAsync(this IDistributedCache cache, string key)
+        {
+            var value = await cache.GetAsync(key);
+            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 async Task<TimeSpan?> GetTimeSpanAsync(this IDistributedCache cache, string key)
+        {
+            var value = await cache.GetAsync(key);
+            return value is null ? null : new(BitConverter.ToInt64(value, 0));
+        }
+    }
+}

EnvelopeGenerator.Application/Extensions/DIExtensions.cs

@@ -11,7 +11,7 @@ using Microsoft.Extensions.DependencyInjection.Extensions;
 using DigitalData.Core.Client;
 using EnvelopeGenerator.Application.Configurations.GtxMessaging;
 
-namespace EnvelopeGenerator.Application
+namespace EnvelopeGenerator.Application.Extensions
 {
     public static class DIExtensions
     {

EnvelopeGenerator.Application/Extensions/MappingExtensions.cs

@@ -1,6 +1,6 @@
 using EnvelopeGenerator.Domain.HttpResponse;
 
-namespace EnvelopeGenerator.Application
+namespace EnvelopeGenerator.Application.Extensions
 {
     public static class MappingExtensions
     {

EnvelopeGenerator.Application/MappingProfiles/BasicDtoMappingProfile.cs

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.DTOs.EnvelopeReceiver;
 using EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly;
 using EnvelopeGenerator.Application.DTOs.Messaging;
 using EnvelopeGenerator.Application.DTOs.Receiver;
+using EnvelopeGenerator.Application.Extensions;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Domain.HttpResponse;
 

EnvelopeGenerator.Application/Services/GTXMessagingService.cs

@@ -4,7 +4,9 @@ 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
@@ -19,15 +21,21 @@ namespace EnvelopeGenerator.Application.Services
 
         private readonly ICodeGenerator _codeGen;
 
+        private readonly IDistributedCache _cache;
+
         public string ServiceProvider { get; }
 
-        public GtxMessagingService(IHttpClientService<SmsParams> smsClient, IOptions<SmsParams> smsParamsOptions, IMapper mapper, ICodeGenerator codeGenerator)
+        private readonly DistributedCacheEntryOptions _codeCacheOptions;
+
+        public GtxMessagingService(IHttpClientService<SmsParams> smsClient, IOptions<SmsParams> smsParamsOptions, IMapper mapper, ICodeGenerator codeGenerator, IDistributedCache distributedCache)
         {
             _smsClient = smsClient;
             _smsParams = smsParamsOptions.Value;
             _mapper = mapper;
             ServiceProvider = GetType().Name.Replace("Service", string.Empty);
             _codeGen = codeGenerator;
+            _cache = distributedCache;
+            _codeCacheOptions = new() { AbsoluteExpirationRelativeToNow = smsParamsOptions.Value.CodeCacheValidityPeriod };
         }
 
         public async Task<SmsResponse> SendSmsAsync(string recipient, string message)
@@ -41,10 +49,30 @@ namespace EnvelopeGenerator.Application.Services
             .ThenAsync(_mapper.Map<SmsResponse>);
         }
 
-        public async Task<SmsResponse> SendSmsCodeAsync(string recipient)
+        public async Task<SmsResponse> SendSmsCodeAsync(string recipient, string envelopeReceiverId)
         {
-            var code = _codeGen.GenerateCode(_smsParams.CodeLength);
+            var code_expiration_key = string.Format(_smsParams.CodeExpirationCacheKeyFormat, envelopeReceiverId);
-            return await SendSmsAsync(recipient: recipient, message: code);
+
+            var code_key = string.Format(_smsParams.CodeCacheKeyFormat, envelopeReceiverId);
+            var code = await _cache.GetStringAsync(code_key);
+
+            if (code is null)
+            {
+                code = _codeGen.GenerateCode(_smsParams.CodeLength);
+                                
+                await _cache.SetStringAsync(code_key, code, _codeCacheOptions);
+                
+                await _cache.SetDateTimeAsync(code_expiration_key, DateTime.Now + _smsParams.CodeCacheValidityPeriod, _codeCacheOptions);
+                
+                return await SendSmsAsync(recipient: recipient, message: code);
+            }
+            else
+            {
+                var code_expiration = await _cache.GetDateTimeAsync(code_expiration_key);
+                return code_expiration is null
+                    ? new() { Ok = false }
+                    : new() { Ok = false, AllowedAt = code_expiration };
+            }
         }
     }
 }

EnvelopeGenerator.GeneratorAPI/Program.cs

@@ -1,7 +1,7 @@
 using DigitalData.Core.API;
 using DigitalData.Core.Application;
 using DigitalData.UserManager.Application;
-using EnvelopeGenerator.Application;
+using EnvelopeGenerator.Application.Extensions;
 using EnvelopeGenerator.Infrastructure;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Localization;

EnvelopeGenerator.Web/Controllers/HomeController.cs

@@ -190,7 +190,7 @@ namespace EnvelopeGenerator.Web.Controllers
                             //check if the user has phone is added
                             if (er_secret.HasPhoneNumber)
                             {
-                                var res = await _msgService.SendSmsCodeAsync(er_secret.PhoneNumber!);
+                                var res = await _msgService.SendSmsCodeAsync(er_secret.PhoneNumber!, envelopeReceiverId: envelopeReceiverId);
                                 if(res.Ok)
                                     return View("EnvelopeLocked").WithData("ViaSms", true);
                                 else

EnvelopeGenerator.Web/Program.cs

@@ -15,6 +15,7 @@ using EnvelopeGenerator.Application;
 using DigitalData.EmailProfilerDispatcher;
 using EnvelopeGenerator.Infrastructure;
 using EnvelopeGenerator.Web.Sanitizers;
+using EnvelopeGenerator.Application.Extensions;
 
 var logger = LogManager.Setup().LoadConfigurationFromAppSettings().GetCurrentClassLogger();
 logger.Info("Logging initialized!");