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/EnvelopeGenerator.Tests.Application/annotations.json
/EnvelopeGenerator.Server/EnvelopeGenerator.Server/TekH - SoftHSM Test.md
/EnvelopeGenerator.Server/EnvelopeGenerator.Server/tekh_softHSM_test.md
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# EnvelopeGenerator - Agent Guide
## Must Read First
- **`COPILOT_CONTEXT.md`** - Architecture, coordinate systems, migration status
- **`FORM_APPLICATION_CONTEXT.md`** - Legacy VB.NET features to migrate
## Active Architecture (Post-Migration)
**Frontend:** Blazor Auto (Server+WASM hybrid)
- **WebUI** (Server): `@rendermode InteractiveServer` - PDF viewers requiring DevExpress backend
- **WebUI.Client** (WASM): `@rendermode InteractiveWebAssembly` - Login, dashboards, business logic
**Backend:** EnvelopeGenerator.API (ASP.NET Core 8.0)
**Proxy:** YARP in WebUI routes `/api/*``localhost:8088` (API)
### Deprecated Projects - DO NOT USE
- `EnvelopeGenerator.ReceiverUI` - Pure WASM (migrated to WebUI)
- `EnvelopeGenerator.Web` - Razor Pages (replaced by WebUI)
- **VB.NET projects** (`Form`, `Service`, `BBTests`) - Legacy, read-only for reference
## Development Commands
### Run Both Projects (Required)
```powershell
# Terminal 1 - API Backend
cd EnvelopeGenerator.API
dotnet run
# Terminal 2 - Blazor Frontend
cd EnvelopeGenerator.WebUI\EnvelopeGenerator.WebUI
dotnet run
```
**Critical:** Both must run simultaneously. WebUI proxy forwards `/api/*` to API.
### Build
```powershell
dotnet build EnvelopeGenerator.sln
```
## Project Boundaries
```
EnvelopeGenerator.Domain/ # Entities (Envelope, Receiver, Document, etc.)
EnvelopeGenerator.Application/ # MediatR CQRS (Commands, Queries, Handlers)
EnvelopeGenerator.Infrastructure/ # EF Core, SQL executors, repositories
EnvelopeGenerator.API/ # Controllers, endpoints
EnvelopeGenerator.WebUI/ # Server-side Blazor components
├─ Components/Pages/ # @rendermode InteractiveServer
EnvelopeGenerator.WebUI.Client/ # Client-side WASM components
├─ Pages/ # @rendermode InteractiveWebAssembly
├─ Services/ # HTTP API clients
├─ Models/ # DTOs
```
## Route Structure (Critical)
| Route | File Location | Render Mode | Purpose |
|-------|--------------|-------------|---------|
| `/` | `WebUI.Client/Pages/Index.razor` | WASM | Landing page |
| `/sender/login` | `WebUI.Client/Pages/LoginSenderPage.razor` | WASM | Sender auth |
| `/sender` | `WebUI.Client/Pages/EnvelopeSenderPage.razor` | WASM | Sender dashboard |
| `/envelope/login/{key}` | `WebUI.Client/Pages/LoginReceiverPage.razor` | WASM | Receiver auth |
| `/envelope/{key}` | `WebUI/Components/Pages/EnvelopeReceiverPage.razor` | **Server** | PDF viewer + signing |
**Rule:** PDF viewers MUST use `@rendermode InteractiveServer` (DevExpress backend requirement). Everything else uses WASM.
## Coordinate System (CRITICAL)
**Database stores INCHES** (GdPicture14 native). Origin: top-left, Y-axis down.
### Conversions
```csharp
// Database (INCHES) → PDF Points
float points = inches * 72;
// Database (INCHES) → DevExpress DX
float dx = inches * 100;
// PDF.js Pixels → Database (INCHES)
float inches = (pixelX / canvasWidth) * pageWidthInches;
```
**A4 Page:** 8.27" wide × 11.69" tall = 595pt × 842pt
**Signature Field Size:** 1.77" × 1.96" (FIXED, do not change)
**Evidence:** See `COPILOT_CONTEXT.md` lines 158-185, `EnvelopeGenerator.Form/frmFieldEditor.vb`
## API Architecture Quirks
### Monolithic Endpoint (Avoid for UI)
`POST /api/EnvelopeReceiver` - Creates envelope+document+receivers+fields atomically.
- **Use case:** External API consumers
- **Not suitable for:** Step-by-step UI workflow (no draft support, no partial updates)
### Missing Granular Endpoints (Need to Create)
```
POST /api/Envelope/draft # Create draft envelope
PUT /api/Envelope/{id} # Update metadata
DELETE /api/Envelope/{id} # Delete with reason
POST /api/Envelope/{id}/document # Upload PDF
POST /api/Envelope/{id}/receivers # Add receiver
POST /api/Envelope/{id}/signature-fields # Place signature field
POST /api/Envelope/{id}/send # Send to receivers
```
See `FORM_APPLICATION_CONTEXT.md` for detailed workflow requirements.
## Status Color Coding
Form app uses DevExpress `CustomDrawCell`. WebUI needs CSS:
```css
.envelope-row.status-partly-signed { background-color: #81C784; } /* GREEN_300 */
.envelope-row.status-queued,
.envelope-row.status-sent { background-color: #FFB74D; } /* ORANGE_300 */
.envelope-row.status-completed { background-color: #81C784; }
.envelope-row.status-deleted,
.envelope-row.status-rejected { background-color: #E57373; } /* RED_300 */
```
## Configuration
### YARP Proxy (`WebUI/yarp.json`)
Routes `/api/*`, `/swagger/*`, `/openapi/*`, `/scalar/*``https://localhost:8088`
### PDF.js Settings (`WebUI/wwwroot/appsettings.json`)
```json
{
"PdfViewerOptions": {
"ThumbnailBaseScale": 0.75,
"ThumbnailEnableHiDPI": true,
"MainCanvasEnableHiDPI": true,
"ZoomStepPercentage": 5
}
}
```
### API Config (`API/appsettings.json`)
- `ConnectionStrings:Default` - SQL Server DB
- `AllowedOrigins` - CORS (includes `http://localhost:5131`, `http://localhost:7192`)
- `Cache:SignatureCacheExpiration` - Signature persistence timeout
- `PSPDFKitLicenseKey` - **DEPRECATED** (use PDF.js instead)
## Migration Status
### Complete ✅
- Receiver login/authentication
- PDF viewing with PDF.js (HiDPI, zoom, thumbnails)
- Signature capture (draw/type/image)
- Signature caching (Redis/SQL)
- Sender login
### Missing (High Priority) ❌
- Sender dashboard (`/sender`) - Empty stub
- Envelope editor (`/sender/envelope/{id}`)
- Signature field placement tool (PDF.js + draggable overlays)
- Granular API endpoints (draft, receivers, fields)
- Master-detail grids for receivers/history
## Common Mistakes (DO NOT REPEAT)
| Mistake | Why Wrong |
|---------|-----------|
| Using iText7 in receiver pages | GPL license issue. Use PDF.js overlays. |
| Using PSPDFKit | Removed from architecture. Use PDF.js + DevExpress. |
| `@rendermode InteractiveWebAssembly` on PDF viewers | DevExpress DxPdfViewer requires server-side rendering. |
| Hardcoded quality in PDF.js | Use `appsettings.json` `PdfViewerOptions`. |
| Coordinates in points/pixels for DB | Database uses INCHES. Convert before save. |
| `BottomMarginBand` for signatures | Repeats on every page. Use `DetailBand`. |
## Testing
**No automated tests exist yet.**
Manual testing workflow:
1. Start API (`dotnet run` in `EnvelopeGenerator.API`)
2. Start WebUI (`dotnet run` in `EnvelopeGenerator.WebUI\EnvelopeGenerator.WebUI`)
3. Navigate to `https://localhost:5131` (or check console output for port)
4. Test sender login at `/sender/login`
5. Test receiver flow at `/envelope/login/{envelopeKey}`
## Database
**SQL Server** (DD_ECM)
- Connection string in `API/appsettings.json`
- EF Core migrations NOT used (manual SQL scripts)
- Stored procedures: `PRSIG_*` prefix
**Key Tables:**
- `TBSIG_ENVELOPE` - Envelope metadata
- `TBSIG_ENVELOPE_RECEIVER` - Receiver assignments
- `TBSIG_DOC_RECEIVER_ELEMENT` - Signature fields (X, Y in INCHES)
- `TBSIG_RECEIVER` - Receiver registry
- `TBSIG_DOCUMENT` - PDF binary data
- `TBSIG_ENVELOPE_HISTORY` - Audit trail
## DevExpress
**License:** Commercial (v25.2.3)
**Components Used:**
- `DxGrid` - Master-detail grids
- `DxPdfViewer` - Server-side PDF rendering
- `DxPopup` - Modal dialogs
- `DxToolbar` - Action bars
- `DxFormLayout` - Forms
**Theme:** Blazing Berry (default)
## JavaScript Interop
**PDF Viewer:** `wwwroot/js/pdf-viewer.js`
```javascript
window.pdfViewer = {
initialize(canvasId, pdfDataUrl, dotNetRef),
renderPage(num),
renderSignatureButtons(signatures, pageNum, dotNetRef),
applySignature(signatureId, dataUrl, fullName, position, place),
zoomIn(), zoomOut(), dispose()
}
```
**Signature Pad:** `wwwroot/js/receiver-signature.js`
```javascript
window.receiverSignature = {
initializeDrawPad(canvasId, dotNetRef),
getSignatureDataUrl(canvasId),
clearPad(canvasId)
}
```
## Multi-Envelope Support
Receivers can login to **multiple envelopes simultaneously** via per-envelope cookies:
```
AuthTokenSignFLOWReceiver.{envelopeKey}
```
Each envelope maintains independent authentication state.
## External Dependencies
**CDN:**
- PDF.js 3.11.174: `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js`
**NuGet (WebUI.Client):**
- `DevExpress.Blazor.*` 25.2.3
- `SkiaSharp.*` 3.119.1 (WASM rendering)
**External Services:**
- LDAP/AD authentication (optional)
- GTX Messaging (SMS 2FA)
- Email dispatcher (signFlow)
## Environment Variables
None required. All config in `appsettings.json`.
**Local dev ports:**
- API: `https://localhost:8088`
- WebUI: `https://localhost:5131` or `http://localhost:7192`

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# EnvelopeGenerator — AI Context Reference
# EnvelopeGenerator — Current Workspace Context
## Purpose
Digital document signing system with **unified Blazor WASM frontend** for both Senders and Receivers. Senders create envelopes and place signature fields. Receivers view PDFs, sign documents, export stamped PDFs.
Digital document signing system for senders and receivers.
**Primary Libraries:** DevExpress + PDF.js (PSPDFKit removed)
- Senders authenticate, view envelope lists, and manage envelope workflows.
- Receivers authenticate per envelope, open PDFs, create signatures, and apply them in the viewer.
- The active UI stack is `Blazor Auto` with server-side and WebAssembly render modes.
- Primary UI/PDF libraries are `DevExpress` and `PDF.js`.
---
## Deployment Architecture
## Active Application Structure
**Two Presentation Projects (Both Required):**
### Main Host
**Primary active application:** `EnvelopeGenerator.Server`
1. **EnvelopeGenerator.API** (ASP.NET Core Web API)
- Runs independently (development & production)
- **YARP Reverse Proxy** configured via `yarp.json`
- Proxies requests to:
- `EnvelopeGenerator.ReceiverUI` (Blazor WASM)
- External Auth.API service
- Serves as single entry point for all requests
`EnvelopeGenerator.Server` is the current runtime host and contains:
- Blazor server host
- WebAssembly host integration
- API controllers
- authentication/authorization setup
- Swagger/Scalar setup
- YARP reverse proxy configuration
- DevExpress server-side services
- SQL Server distributed cache setup
2. **EnvelopeGenerator.ReceiverUI** (Blazor WebAssembly)
- Runs on separate host/port
- Accessed **only through API proxy** (not directly)
- Serves static files (HTML, JS, CSS, WASM)
### Client Project
**Client UI project:** `EnvelopeGenerator.Server.Client`
**Request Flow:**
```
Client ? API:8088 (YARP Proxy) ? ReceiverUI:52936 (Blazor WASM)
? Auth.API:9090 (External Auth Service)
```
This project contains:
- WebAssembly-rendered pages
- client-side services
- client models and options
- sender and receiver login flows
**Configuration:** `EnvelopeGenerator.API/yarp.json`
### Other Projects
- `EnvelopeGenerator.Application` — MediatR/CQRS handlers and business logic
- `EnvelopeGenerator.Domain` — domain models, constants, shared abstractions
- `EnvelopeGenerator.Infrastructure` — EF Core and infrastructure services
- `EnvelopeGenerator.PdfEditor` — PDF-related backend utilities
- `EnvelopeGenerator.API` — still exists in the solution, but the current merged app host is `EnvelopeGenerator.Server`
### Legacy / Do Not Touch
- `EnvelopeGenerator.Service`
- `EnvelopeGenerator.Form`
- `EnvelopeGenerator.BBTests`
- `EnvelopeGenerator.CommonServices`
---
## ReceiverUI Route Structure
## Current Hosting Model
### Root Route
| Route | File | Purpose |
|---|---|---|
| `/` | `Index.razor` | Application entry point (landing page). |
`EnvelopeGenerator.Server/Program.cs` currently configures:
- `AddRazorComponents()` with both interactive server and interactive WebAssembly components
- `AddControllers()` and `MapControllers()`
- JWT authentication for sender and receiver flows
- cookie authentication
- authorization policies using `AuthScheme.Sender`, `AuthScheme.Receiver`, `AuthPolicy.Sender`, `AuthPolicy.Receiver`
- `AddReverseProxy()` with `yarp.json`
- Swagger / OpenAPI / Scalar
- distributed SQL Server cache
- DevExpress Blazor and DevExpress PDF Viewer server-side services
- request localization middleware
### Sender Routes
| Route | File | Purpose |
|---|---|---|
| `/sender/login` | `LoginSenderPage.razor` | Username/password authentication |
| `/sender` | `EnvelopeSenderPage.razor` | Sender dashboard (envelope list) |
### Receiver Routes
| Route | File | Purpose |
|---|---|---|
| `/envelope/login/{EnvelopeKey}` | `LoginReceiverPage.razor` | Access code authentication for specific envelope |
| `/envelope/{EnvelopeKey}` | `EnvelopeReceiverPage.razor` | View & sign envelope (PDF.js viewer) |
**Multi-Envelope Support:** Receivers can login to multiple envelopes simultaneously (per-envelope cookie authentication).
This means the active app is a **merged UI + API host**.
---
## Architecture Evolution
## Reverse Proxy
### Old Architecture (Deprecated)
- **Sender UI:** `EnvelopeGenerator.Web` (Razor Pages + PSPDFKit)
- **Receiver UI:** `EnvelopeGenerator.ReceiverUI` (Blazor WASM + PDF.js)
- **Backend:** `EnvelopeGenerator.API`
**Config file:** `EnvelopeGenerator.Server/EnvelopeGenerator.Server/yarp.json`
### Current Architecture
- **Unified Frontend:** `EnvelopeGenerator.ReceiverUI` (Blazor WASM) — **Both Senders & Receivers**
- **Backend:** `EnvelopeGenerator.API`**Both Senders & Receivers**
- **Libraries:** DevExpress + PDF.js
- **PSPDFKit:** **REMOVED**
Current YARP usage is focused on **AuthHub forwarding**, not a general `/api/* -> EnvelopeGenerator.API` proxy.
Configured routes forward:
- `POST /api/auth` -> AuthHub `/api/auth/sign-flow`
- `POST /api/Auth/envelope-receiver/{key}` -> AuthHub `/api/auth/envelope-receiver/{key}?cookie=true`
---
## Solution Structure
## Active Routes and Files
| Project | Target | Purpose |
|---|---|---|
| `EnvelopeGenerator.API` | net8.0 | ASP.NET Core Web API. Backend for **both Senders & Receivers**. Auth, PDF serving, signature endpoints. |
| `EnvelopeGenerator.ReceiverUI` | net8.0 WASM | **Unified Blazor WebAssembly Frontend**. UI for **both Senders & Receivers**. YARP proxy to API. |
| `EnvelopeGenerator.Web` | net7/8/9 | **DEPRECATED.** Legacy Razor Pages (Sender UI). No longer used. |
| `EnvelopeGenerator.Application` | multi | MediatR CQRS handlers. Business logic. |
| `EnvelopeGenerator.Domain` | multi | Domain models, constants, interfaces. |
| `EnvelopeGenerator.Infrastructure` | multi | EF Core repos, DB context. |
| `EnvelopeGenerator.PdfEditor` | multi | iText7 utilities (NOT used in ReceiverUI). |
| `EnvelopeGenerator.DependencyInjection` | multi | DI registration helpers. |
| **VB.NET projects** (Service/Form/BBTests) | net462 | **Legacy. Do NOT touch.** |
---
## Localization & Culture Management
**Current Architecture:** Blazor WebAssembly (client-side culture management)
### Implementation Details
**Culture Storage:**
- Culture preference stored in browser's `localStorage` (key: `AppCulture`)
- Managed by `CultureService.cs` (ReceiverUI/Services)
- Supported cultures: `de-DE`, `en-US`, `fr-FR`
**Culture Initialization:**
- **Location:** `Program.cs` (lines 53-57)
- Sets `CultureInfo.DefaultThreadCurrentCulture/UICulture` **before** app runs
- **WASM-Safe:** Each user has isolated browser instance
**Language Selector:**
- **Component:** `LanguageSelector.razor` (ReceiverUI/Shared)
- Displays flag icon + language name
- Changes culture via `CultureService.SetCultureAsync()`
- Navigates with `forceLoad: false` (smooth transition, no page reload)
### ⚠️ MIGRATION WARNING: Blazor Server/Auto
**Current approach is WASM-specific and will break in Server/Auto render modes!**
**Why it breaks:**
- `Program.cs:53-57` sets **global** `DefaultThreadCurrentCulture`
- In Server/Auto, one app instance serves **all users**
- User A selects German → User B sees German too (shared state)
- Thread-safety issues and culture conflicts
**Migration Checklist (when moving to Server/Auto):**
1. **Remove global culture initialization** from `Program.cs` (lines 53-57)
- See detailed warning comment in the code
2. **Add RequestLocalizationMiddleware** (Server-side approach):
```csharp
app.UseRequestLocalization(options => {
options.SupportedCultures = new[] { "de-DE", "en-US", "fr-FR" };
options.SupportedUICultures = options.SupportedCultures;
options.RequestCultureProviders.Insert(0, new CookieRequestCultureProvider());
});
```
3. **OR** Use **per-circuit culture** (Blazor Server approach):
- Store culture in circuit-scoped service
- Use `CascadingParameter` to distribute to components
- See: https://learn.microsoft.com/aspnet/core/blazor/globalization-localization
4. **Update `LanguageSelector.razor`:**
- Remove manual `CultureInfo.DefaultThreadCurrentCulture` assignment
- Use middleware/circuit culture provider instead
5. **Update `CultureService.cs`:**
- Integrate with Server-side culture provider
- May need to store in cookies instead of localStorage
**References:**
- Microsoft Docs: [Blazor Globalization/Localization](https://learn.microsoft.com/aspnet/core/blazor/globalization-localization)
- Current implementation: `Program.cs`, `CultureService.cs`, `LanguageSelector.razor`
---
## Key Files & Routes
| File | Route/Purpose |
|---|---|
| `ReceiverUI/Pages/Index.razor` | `/` — Application entry point (landing page). |
| `ReceiverUI/Pages/EnvelopeSenderPage.razor` | `/sender` — Sender dashboard (envelope list). |
| `ReceiverUI/Pages/EnvelopeReceiverPage.razor` | `/envelope/{key}` — Receiver PDF viewer & signing. |
| `ReceiverUI/Pages/LoginSenderPage.razor` | `/sender/login` — Sender username/password auth. |
| `ReceiverUI/Pages/LoginReceiverPage.razor` | `/envelope/login/{EnvelopeKey}` — Receiver access code auth. |
| `ReceiverUI/wwwroot/js/pdf-viewer.js` | PDF.js wrapper (zoom, pagination, thumbnails). |
| `ReceiverUI/wwwroot/js/receiver-signature.js` | Signature pad (draw/type/image). |
| `ReceiverUI/wwwroot/css/envelope-viewer.css` | EnvelopeViewer styles. |
| `ReceiverUI/Services/AuthService.cs` | Receiver + Sender authentication. |
| `ReceiverUI/Services/SignatureCacheService.cs` | Signature caching (Redis/SQL). |
| `API/Controllers/CacheController.cs` | Signature cache endpoints. |
---
## Coordinate System — CRITICAL
**Database Format:** INCHES (GdPicture14 native)
**Origin:** Top-left corner
**Axes:** X right, Y down
### Conversion Formulas
| From INCHES to | Formula | Example |
|---|---|---|
| **DevExpress DX** | `x_DX = x_inches * 100` | 1.5" ? 150 DX |
| **PDF Points** | `x_pt = x_inches * 72` | 1.5" ? 108 pt |
| **PDF.js Pixels** | Normalize ? scale | `(x_inches / pageWidth) * canvasWidth * scale` |
**A4 Dimensions:**
- Width: 8.27" = 595pt = 827 DX
- Height: 11.69" = 842pt = 1169 DX
### Unit Systems
| System | Unit | Origin | Y-Axis |
### WebAssembly Pages (`EnvelopeGenerator.Server.Client`)
| Route | File | Render Mode | Purpose |
|---|---|---|---|
| **Database (GdPicture14)** | Inches | Top-left | Down |
| PDF.js | Pixels | Top-left | Down |
| iText7 PDF | Points (1/72") | **Bottom-left** | **Up** (flip required) |
| ~~PSPDFKit~~ | ~~Points~~ | ~~Top-left~~ | **REMOVED** |
| `/` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/IndexPage.razor` | WebAssembly | Landing page |
| `/sender/login` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/LoginSenderPage.razor` | WebAssembly | Sender login |
| `/sender` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/EnvelopeSenderPage.razor` | WebAssembly (`prerender: false`) | Sender dashboard |
| `/envelope/login/{EnvelopeKey}` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/LoginReceiverPage.razor` | WebAssembly | Receiver login |
### Server Pages (`EnvelopeGenerator.Server`)
| Route | File | Render Mode | Purpose |
|---|---|---|---|
| `/envelope/{EnvelopeKey}` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage.razor` | InteractiveServer | Main receiver PDF viewer and signing page |
| `/envelope/DxPdfViewer` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage_DxPdfViewer.razor` | InteractiveServer | DevExpress PDF Viewer test page |
| `/envelope/{EnvelopeKey}/DxReportViewer` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage_DxReportViewer.razor` | InteractiveServer | DevExpress report-based PDF rendering |
| `/envelope/Embed` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage_embed.razor` | InteractiveServer | Embedded browser PDF view test page |
---
## EnvelopeReceiver — PDF.js Viewer & Signing
## Current API Location
**Route:** `/envelope/{EnvelopeKey}`
**Tech:** PDF.js 3.11.174 + Blazor WASM + configurable quality
**File:** `ReceiverUI/Pages/EnvelopeReceiverPage.razor`
The active application exposes controllers from:
`EnvelopeGenerator.Server/EnvelopeGenerator.Server/Controllers`
### Key Features
1. HiDPI/Retina support (4x quality)
2. Configurable quality (`appsettings.json`)
3. Unlimited zoom (50%-300%)
4. Ctrl+Wheel global zoom
5. Resizable thumbnail sidebar (150-400px, localStorage)
6. Responsive (desktop/mobile)
Current controller set includes:
- `AnnotationController`
- `AuthController`
- `CacheController`
- `ConfigController`
- `DocumentController`
- `EmailTemplateController`
- `EnvelopeController`
- `EnvelopeReceiverController`
- `EnvelopeTypeController`
- `HistoryController`
- `LocalizationController`
- `ReadOnlyController`
- `ReceiverController`
- `SignatureController`
- `TfaRegistrationController`
### Configuration
**File:** `ReceiverUI/wwwroot/appsettings.json`
```json
{
"PdfViewer": {
"ThumbnailBaseScale": 0.75,
"ThumbnailEnableHiDPI": true,
"MainCanvasEnableHiDPI": true,
"ZoomStepPercentage": 5
}
}
```
### JavaScript API
**File:** `ReceiverUI/wwwroot/js/pdf-viewer.js`
```javascript
window.pdfViewer = {
initialize(canvasId, pdfDataUrl, dotNetRef),
renderPage(num),
renderSignatureButtons(signatures, pageNum, dotNetRef),
applySignature(signatureId, dataUrl, fullName, position, place),
zoomIn(), zoomOut(), dispose()
}
```
Do not assume API behavior lives only in `EnvelopeGenerator.API`; the active merged host contains controller endpoints directly.
---
## Signature Workflow — EnvelopeReceiver
## Authentication Model
**IMPORTANT:** iText7 NOT used (GPL license issue). Client-side overlay system only.
### Sender
Client login page uses `EnvelopeGenerator.Server.Client/Services/AuthService.cs`.
### Workflow Steps
Key sender endpoints:
- `POST /api/auth?cookie=true` — login
- `GET /api/auth/check` — current sender access check
- `POST /api/auth/logout` — logout
1. **Page Load:**
- Check `SignatureCacheService` for cached signature
- If cached ? skip popup, load signature
- If not ? show automatic popup (mandatory)
### Receiver
Receiver authentication is **per envelope**.
2. **Signature Popup (DxPopup):**
- **Cannot close** (no X, no ESC, no outside-click)
- **3 Tabs:** Draw (canvas) / Text (font select) / Image (upload)
- **Required:** Full name, Place
- **Optional:** Position
- **Save ?** Store in `_capturedSignature`, cache via API
Key receiver endpoints used by client services:
- `POST /api/Auth/envelope-receiver/{envelopeKey}` — submit access code
- `GET /api/auth/check/envelope/{envelopeKey}` — check access
- `POST /api/auth/logout/envelope/{envelopeKey}` — logout receiver for one envelope
3. **Signature Buttons:**
- Render purple "Unterschreiben" buttons at signature field positions
- Coordinates: INCHES ? POINTS ? Pixels (scaled)
- File: `pdf-viewer.js` ? `renderSignatureButtons()`
Receiver cookie resolution in server auth uses an envelope-specific cookie name derived from:
- `AuthTokenSignFLOWReceiver.{envelopeKey}` pattern
4. **Apply Signature (Click "Unterschreiben"):**
- JS: Remove button, create HTML overlay
- Format: Image + separator + text (Name, Position, Place, Date)
- **NOT stamped on PDF bytes** (visual overlay only)
### Receiver Server-Side Authorization
`EnvelopeReceiverPage.razor` does **not** rely on its own API access-check call for page authorization.
5. **Re-rendering:**
- Zoom/Page change ? recalculate button positions
- Session state: `_capturedSignature` (lost on refresh)
It uses:
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverAuthorizationService.cs`
### Data Model
**File:** `ReceiverUI/Models/SignatureCaptureDto.cs`
Behavior:
- tries the current `HttpContext.User`
- if needed, reads the per-envelope receiver cookie directly
- validates the JWT with the receiver auth scheme
- verifies the token subject matches the route envelope key
---
## Receiver Page Data Loading
Main server-side page data service:
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverPageDataService.cs`
This service loads directly via MediatR and distributed cache:
- document bytes
- receiver envelope data
- signature placeholders
- cached signature data
For signature placeholders, the service:
- reads document receiver elements
- filters them for the authenticated receiver
- converts coordinates to `UnitOfLength.Point` before UI use
---
## Receiver PDF Viewer
**Main file:** `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage.razor`
Current receiver viewer characteristics:
- route: `/envelope/{EnvelopeKey}`
- render mode: `InteractiveServer`
- PDF rendering: `PDF.js`
- toolbar: page navigation, zoom, thumbnail toggle, signature navigation, signature reset
- signature popup: `DxPopup`
- thumbnail sidebar: resizable and stored in `localStorage`
### JS Assets
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/js/pdf-viewer.js`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/js/receiver-signature.js`
### CSS
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/css/envelope-viewer.css`
### PDF.js CDN
- `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js`
- `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf_viewer.min.css`
---
## Signature Workflow
Receiver signatures are handled as a **viewer overlay workflow**.
### Current behavior
1. Server-side authorization validates receiver access.
2. The page loads document bytes, receiver data, signature placeholders, and cached signature state.
3. If no cached signature exists, the signature popup opens automatically.
4. Receiver creates signature using one of three tabs:
- draw
- text
- image
5. Required metadata:
- full name
- place
6. Optional metadata:
- position
7. Clicking a signature placeholder applies the signature as a client-side overlay in the PDF viewer.
### Important note
Although `itext` is referenced by the server project, the current receiver page signing flow is **not PDF stamping-based**. The active receiver UI uses client-side overlay behavior in the viewer.
### Signature DTO
`EnvelopeGenerator.Server.Client/Models/SignatureCaptureDto.cs`
```csharp
public sealed record SignatureCaptureDto {
public required string DataUrl { get; init; } // base64 PNG
public required string DataUrl { get; init; }
public required string FullName { get; init; }
public string Position { get; init; } = ""; // Optional
public string Position { get; init; } = "";
public required string Place { get; init; }
}
```
---
## Signature Caching
## Signature Cache
**Purpose:** Persist signature across page refreshes (distributed cache: Redis/SQL)
### Active cache model
The current receiver page cache flow is handled directly in the server project through:
- `EnvelopeReceiverPageDataService`
- `IDistributedCache`
- SQL Server distributed cache configuration from `Program.cs`
### API Endpoints
**Controller:** `API/Controllers/CacheController.cs`
### Cache key format
Current server-side key prefix:
- `envelope-generator.receiver-ui.signature:{receiverSignature}`
- `POST /api/Cache/SignatureCapture/{envelopeKey}` — Save
- `GET /api/Cache/SignatureCapture/{envelopeKey}` — Load
- `DELETE /api/Cache/SignatureCapture/{envelopeKey}` — Delete
This is different from an envelope-key-only cache convention.
**Cache Key Format:**
```
signature:91751687-8ae6-4777-bf5f-b8846085e62e:{envelopeKey}
```
### Config
`EnvelopeGenerator.Server/EnvelopeGenerator.Server/Options/CacheOptions.cs`
- section name: `Cache`
- option: `SignatureCacheExpiration`
**Configuration:** `appsettings.json`
```json
{
"Cache": {
"SignatureCacheExpiration": null // or "02:00:00" for 2h
}
}
```
### Service
**File:** `ReceiverUI/Services/SignatureCacheService.cs`
```csharp
public class SignatureCacheService {
Task SaveSignatureAsync(string envelopeKey, SignatureCaptureDto signature);
Task<SignatureCaptureDto?> GetSignatureAsync(string envelopeKey);
Task DeleteSignatureAsync(string envelopeKey);
}
```
**Error Handling:** Fire-and-forget saves, graceful degradation on load failure.
### Related controller
A cache API controller also exists in:
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Controllers/CacheController.cs`
---
## Sender Login
## Sender Dashboard
**Route:** `/sender/login`
**File:** `ReceiverUI/Pages/LoginSenderPage.razor`
**Tech:** Bootstrap 5 + DevExpress Blazing Berry theme
**Main file:** `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/EnvelopeSenderPage.razor`
### AuthService Extension
**File:** `ReceiverUI/Services/AuthService.cs`
Current behavior:
- checks sender access through `AuthService.CheckSenderAccessAsync()`
- redirects to `/sender/login` when unauthorized
- loads envelope list through client `EnvelopeService`
- separates envelopes into active/completed tabs
- uses `DevExpress DxGrid`
```csharp
public enum SenderLoginResult { Success, InvalidCredentials, Error }
public async Task<SenderLoginResult> LoginSenderAsync(string username, string password) {
var response = await http.PostAsJsonAsync(
$"{_api.BaseUrl}/api/auth?cookie=true",
new { username, password });
return response.StatusCode switch {
HttpStatusCode.OK => SenderLoginResult.Success,
HttpStatusCode.Unauthorized => SenderLoginResult.InvalidCredentials,
_ => SenderLoginResult.Error
};
}
```
### API Integration
**Endpoint:** `POST /api/auth?cookie=true`
**Request:**
```json
{ "username": "TekH", "password": "***" }
```
**Response:**
- `200 OK` ? Cookie set, redirect to `/sender`
- `401 Unauthorized` ? Show error: "Ungültige Anmeldedaten"
- Other ? Show error: "Serverfehler"
**Cookie:** HTTP-only, Secure (HTTPS), SameSite=Strict
### UI Flow
1. User enters username + password
2. Click "Anmelden" or press Enter
3. Call `AuthService.LoginSenderAsync()`
4. Success ? `Navigation.NavigateTo("/sender", forceLoad: true)`
5. Error ? Display alert
The sender page is active, but create/edit/delete actions are still marked with TODO behavior in the UI page.
---
## Receiver Login
## Localization
**Route:** `/envelope/login/{EnvelopeKey}`
**File:** `ReceiverUI/Pages/LoginReceiverPage.razor`
Current server host localization setup in `Program.cs`:
- supported cultures: `de-DE`, `en-US`
- request localization middleware is enabled
- `QueryStringRequestCultureProvider` is added
- cookie-based localization services are registered via `AddCookieBasedLocalizer()`
**Multi-Envelope Support:** Cookies are stored per-envelope (e.g., `AuthTokenSignFLOWReceiver.{envelopeKey}`), allowing simultaneous authentication for multiple envelopes in the same browser session.
### AuthService Method
```csharp
public enum EnvelopeLoginResult { Success, InvalidCode, NotFound, Error }
public async Task<EnvelopeLoginResult> LoginEnvelopeReceiverAsync(string key, string accessCode) {
var form = new MultipartFormDataContent();
form.Add(new StringContent(accessCode), "AccessCode");
var response = await http.PostAsync(
$"{_api.BaseUrl}/api/Auth/envelope-receiver/{Uri.EscapeDataString(key)}", form);
return response.StatusCode switch {
HttpStatusCode.OK => EnvelopeLoginResult.Success,
HttpStatusCode.Unauthorized => EnvelopeLoginResult.InvalidCode,
HttpStatusCode.NotFound => EnvelopeLoginResult.NotFound,
_ => EnvelopeLoginResult.Error
};
}
```
**Success:** Redirect to `/envelope/{key}`
Do not assume the old ReceiverUI-only `localStorage` culture approach is the current source of truth for the active host.
---
## NuGet Packages (ReceiverUI)
## Coordinate System
| Package | Version | Purpose |
|---|---|---|
| `DevExpress.Blazor.*` | 25.2.3 | UI components (grids, popups, etc.) |
| `SkiaSharp.*` | 3.119.1 | WASM rendering |
| ~~`itext`~~ | ~~8.0.5~~ | **NOT USED** (GPL license) |
### Source data
Database signature coordinates are still based on:
- **unit:** inches
- **origin:** top-left
- **axes:** X right, Y down
**External CDN:**
- PDF.js 3.11.174: `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js`
### Relevant conversions
- inches -> PDF points: `x_pt = x_inches * 72`
- inches -> DevExpress DX units: `x_dx = x_inches * 100`
### Current receiver page behavior
The server page data service converts signature placeholders to **points** before sending them into the viewer workflow.
### Unit systems to keep in mind
| System | Unit | Origin | Y-axis |
|---|---|---|---|
| Database | Inches | Top-left | Down |
| PDF.js display | Pixels | Top-left | Down |
| PDF points | Points | Depends on PDF model | Depends on consumer |
| DevExpress DX | 1/100 inch style coordinates | Top-left-oriented usage in this app | Down-oriented usage |
---
## Mistakes History — Do NOT Repeat
## Key Services and Files
| Mistake | Why Wrong |
|---|---|
| Using iText7 in EnvelopeReceiver | GPL license issue. Use overlay system instead. |
| Using PSPDFKit | Removed from architecture. Use PDF.js + DevExpress. |
| Hardcoded quality values in PDF.js | Use `appsettings.json` for configurability. |
| Complex toolbar layouts | User wants simplicity. Keep horizontal layout. |
| Over-designed UI (gradients/badges) | User prefers simple text labels. |
| Ignoring "revert" instructions | Revert HTML structure, not just CSS. |
| `BottomMarginBand` for signatures | Repeats on every page. Use DetailBand. |
| `imageY = (page-1) * 1169 + ann.Y` | Inflates DetailBand. Calculate per-page. |
### Client services
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/AuthService.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/EnvelopeService.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/DocumentService.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/SignatureCacheService.cs`
### Server services
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeAuthService.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/IEnvelopeAuthService.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverAuthorizationService.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverPageDataService.cs`
### Server config and host files
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs`
- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/yarp.json`
---
## Development Notes
## Working Rules for This Workspace
### Deprecated Projects
**DO NOT USE:**
- `EnvelopeGenerator.Web` (Razor Pages) — Replaced by unified ReceiverUI
- PSPDFKit — Removed, use PDF.js + DevExpress instead
### Legacy Projects (VB.NET)
**DO NOT TOUCH:** `EnvelopeGenerator.Service`, `EnvelopeGenerator.Form`, `EnvelopeGenerator.BBTests`
### Signature Coordinate Evidence
**File:** `EnvelopeGenerator.Form/frmFieldEditor.vb` (VB.NET)
```vb
Private Const SIGNATURE_WIDTH As Single = 1.77 ' inches
Private Const SIGNATURE_HEIGHT As Single = 1.96 ' inches
Sub LoadAnnotation(pElement As Signature, ...)
oAnnotation.Left = CSng(pElement.X) ' Direct INCHES assignment
oAnnotation.Top = CSng(pElement.Y)
End Sub
```
Proves database uses INCHES natively.
- Treat `EnvelopeGenerator.Server` as the active main application host.
- Treat `EnvelopeGenerator.Server.Client` as the active client UI project.
- Prefer current `Server` / `Server.Client` paths over old `WebUI` / `ReceiverUI` references.
- Do not use `EnvelopeGenerator.Web` or `EnvelopeGenerator.ReceiverUI` as the primary implementation target unless explicitly asked.
- Do not modify the legacy VB.NET projects unless explicitly requested.
- For receiver PDF/signature work, prefer the current `PDF.js`-based flow in `EnvelopeReceiverPage.razor`.
- For DevExpress PDF viewer issues, remember server-side services are registered in `EnvelopeGenerator.Server`.
---
## Quick Reference
### When working with coordinates:
1. **Database ? UI:** INCHES × 72 = PDF Points
2. **UI ? Display:** Points × scale = Pixels
3. **iText7 stamping:** Flip Y-axis (top-down ? bottom-up)
### When adding features:
1. Check `Mistakes History` first
2. Prefer simplicity over complexity
3. Use `appsettings.json` for configuration
4. Keep consistent with existing design (Bootstrap 5 + Blazing Berry)
5. **Unified frontend:** ReceiverUI serves both Senders and Receivers
### When debugging:
1. **Coordinates:** Always check unit system (inches/points/pixels)
2. **Authentication:** Check cookie name/domain/SameSite
3. **Cache:** Check Redis/SQL connection + key format
4. **Frontend confusion:** Only use ReceiverUI (Web is deprecated)
---
**Last Updated:** Session 19 (Razor file naming convention + Index route proxy)
**Last Updated:** 2026-06-29

View File

@@ -214,6 +214,10 @@ public class EnvelopeReceiverController : ControllerBase
if (reader.Read())
{
bool outSuccess = reader.GetBoolean(0);
if (!outSuccess)
_logger.LogWarning(
"PRSIG_API_ADD_DOC_RECEIVER_ELEM returned OUT_SUCCESS=false. DOC_ID={DocId}, RECEIVER_ID={ReceiverId}, Page={Page}",
document.Id, rcv.Id, sign.Page);
}
}
#endregion
@@ -221,8 +225,6 @@ public class EnvelopeReceiverController : ControllerBase
#region Create history
// ENV_UID, STATUS_ID, USER_ID,
string sql_hist = @"
USE [DD_ECM]
DECLARE @OUT_SUCCESS bit;
EXEC [dbo].[PRSIG_API_ADD_HISTORY_STATE]
@@ -244,6 +246,10 @@ public class EnvelopeReceiverController : ControllerBase
if (reader.Read())
{
bool outSuccess = reader.GetBoolean(0);
if (!outSuccess)
_logger.LogWarning(
"PRSIG_API_ADD_HISTORY_STATE returned OUT_SUCCESS=false. EnvelopeUuid={EnvelopeUuid}",
envelope.Uuid);
}
}
#endregion

View File

@@ -1,6 +1,7 @@
using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
using DigitalData.UserManager.Application.DTOs.User;
using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
using EnvelopeGenerator.Application.Common.Dto.History;
using EnvelopeGenerator.Domain.Constants;
using EnvelopeGenerator.Domain.Entities;
using EnvelopeGenerator.Domain.Interfaces;
@@ -129,4 +130,9 @@ public record EnvelopeDto : IEnvelope
///
/// </summary>
public IEnumerable<EnvelopeReceiverDto>? EnvelopeReceivers { get; set; }
/// <summary>
/// Envelope history entries tracking actions like DocumentSigned, EnvelopeOpened, etc.
/// </summary>
public IEnumerable<HistoryDto>? Histories { get; set; }
}

View File

@@ -1,5 +1,6 @@
using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
using EnvelopeGenerator.Application.Common.Dto.Receiver;
using EnvelopeGenerator.Domain.Constants;
namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
@@ -73,4 +74,13 @@ public record EnvelopeReceiverDto
///
/// </summary>
public bool HasPhoneNumber { get; init; }
/// <summary>
/// Indicates whether this receiver has signed the envelope.
/// Checks if there is a DocumentSigned history entry for this receiver in the envelope's history.
/// </summary>
public bool Signed => Envelope?.Histories?.Any(h =>
h.Receiver?.Id == ReceiverId &&
h.Status == EnvelopeStatus.DocumentSigned
) ?? false;
}

View File

@@ -1,4 +1,6 @@
namespace EnvelopeGenerator.Application.Common.Query;
using System.ComponentModel.DataAnnotations.Schema;
namespace EnvelopeGenerator.Application.Common.Query;
/// <summary>
/// Stellt eine Abfrage dar, um die Details eines Empfängers zu lesen.
@@ -29,5 +31,6 @@ public record ReceiverQueryBase
/// <see cref="Id"/>, <see cref="EmailAddress"/>, or <see cref="Signature"/> is not null.
/// <para>Usage example: The query can be executed only if at least one criterion is specified.</para>
/// </remarks>
public bool HasAnyCriteria => Id is not null || EmailAddress is not null || Signature is not null;
[NotMapped]
public virtual bool HasAnyCriteria => Id is not null || EmailAddress is not null || Signature is not null;
}

View File

@@ -13,7 +13,7 @@ public class EnvelopeReceiverAddReadSQL : ISQL<Envelope>
/// ENV_UID, EMAIL_ADRESS, SALUTATION, PHONE,
/// </summary>
public string Raw => @"
DECLARE @OUT_RECEIVER_ID int
DECLARE @OUT_RECEIVER_ID bigint
EXEC [dbo].[PRSIG_API_CREATE_RECEIVER]
{0},

View File

@@ -51,8 +51,8 @@ public static class DependencyInjection
services.Configure<TotpSmsParams>(config.GetSection(nameof(TotpSmsParams)));
services.AddHttpClientService<GtxMessagingParams>(config.GetSection(nameof(GtxMessagingParams)));
services.TryAddSingleton<ISmsSender, GTXSmsSender>();
services.TryAddSingleton<IEnvelopeSmsHandler, EnvelopeSmsHandler>();
services.TryAddScoped<ISmsSender, GTXSmsSender>(); // Changed: Singleton → Scoped
services.TryAddScoped<IEnvelopeSmsHandler, EnvelopeSmsHandler>(); // Changed: Singleton → Scoped
services.TryAddSingleton<IAuthenticator, Authenticator>();
services.TryAddSingleton<QRCodeGenerator>();

View File

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.Common.Query;
using MediatR;
using EnvelopeGenerator.Domain.Entities;
using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations.Schema;
namespace EnvelopeGenerator.Application.Receivers.Queries;
@@ -12,7 +13,24 @@ namespace EnvelopeGenerator.Application.Receivers.Queries;
/// Stellt eine Abfrage dar, um die Details eines Empfängers zu lesen.
/// um spezifische Informationen über einen Empfänger abzurufen.
/// </summary>
public record ReadReceiverQuery : ReceiverQueryBase, IRequest<IEnumerable<ReceiverDto>>;
public record ReadReceiverQuery : ReceiverQueryBase, IRequest<IEnumerable<ReceiverDto>>
{
/// <summary>
/// Suchbegriff für eine teilweise Übereinstimmung in der E-Mail Adresse des Empfängers
/// </summary>
public virtual string? EmailAddressSearch { get; set; }
/// <summary>
/// Checks whether any of the specified query criteria have a value.
/// </summary>
/// <remarks>
/// This property returns <c>true</c> if at least one of the fields
/// <see cref="ReceiverQueryBase.Id"/>, <see cref="ReceiverQueryBase.EmailAddress"/>, <see cref="EmailAddressSearch"/>, or <see cref="ReceiverQueryBase.Signature"/> is not null.
/// <para>Usage example: The query can be executed only if at least one criterion is specified.</para>
/// </remarks>
[NotMapped]
public override bool HasAnyCriteria => EmailAddressSearch is not null || base.HasAnyCriteria;
}
/// <summary>
///
@@ -53,6 +71,11 @@ public class ReadReceiverQueryHandler : IRequestHandler<ReadReceiverQuery, IEnum
query = query.Where(r => r.EmailAddress == email);
}
if (!string.IsNullOrWhiteSpace(request.EmailAddressSearch))
{
query = query.Where(r => EF.Functions.Like(r.EmailAddress, $"%{request.EmailAddressSearch}%"));
}
if (request.Signature is string signature)
{
query = query.Where(r => r.Signature == signature);

View File

@@ -0,0 +1,44 @@
namespace EnvelopeGenerator.Server.Client.Data {
public class Adjustment
{
public static Adjustment CreateBalanceForward(DateTime dt, int random)
{
var rnd = new DeterministicRandom(random);
Adjustment res = new Adjustment();
res.currentDateTime = dt;
res.currentDescription = "Balance Forward";
res.currentAmount = rnd.Random(10, 300) * 10;
return res;
}
public static Adjustment CreatePayment(DateTime dt, int random)
{
var rnd = new DeterministicRandom(random);
Adjustment res = new Adjustment();
res.currentDateTime = dt;
res.currentDescription = "Payment";
res.currentAmount = -rnd.Random(1, 40) * 10;
return res;
}
public static Adjustment CreateCharge(DateTime dt, int random)
{
var rnd = new DeterministicRandom(random);
Adjustment res = new Adjustment();
res.currentDateTime = dt;
res.currentDescription = rnd.GetRandomItem(bills);
res.currentAmount = rnd.Random(10, 50) * 10;
return res;
}
DateTime currentDateTime;
string currentDescription = "";
double currentAmount = 0;
static readonly string[] bills = new string[] { "Bill - Insurance", "Bill - Electricity", "Bill - Rent", "Bill - Phone", "Bill - Office Supplies" };
public DateTime Date { get { return currentDateTime; } }
public string Description { get { return currentDescription; } }
public double Amount { get { return currentAmount; } }
public Adjustment()
{
}
}
}

View File

@@ -0,0 +1,64 @@
using DevExpress.DataAccess.Sql;
using DevExpress.DataAccess.Sql.DataApi;
namespace EnvelopeGenerator.Server.Client.Data {
public class Customer {
static List<Customer> currentCustomers = new List<Customer>();
public static List<Customer> Customers { get { return currentCustomers; } }
static Customer() {
try {
SqlDataSource ds = new SqlDataSource("NWindConnectionString");
SelectQuery query = SelectQueryFluentBuilder
.AddTable("Customers")
.SelectAllColumns()
.Build("Customers");
ds.Queries.Add(query);
ds.RebuildResultSchema();
ds.Fill();
ITable src = ds.Result["Customers"];
foreach(var row in src) {
currentCustomers.Add(new Customer() {
CustomerID = row.GetValue<string>("CustomerID"),
Address = row.GetValue<string>("Address"),
CompanyName = row.GetValue<string>("CompanyName"),
ContactName = row.GetValue<string>("ContactName"),
ContactTitle = row.GetValue<string>("ContactTitle"),
Country = row.GetValue<string>("Country"),
City = row.GetValue<string>("City"),
Fax = row.GetValue<string>("Fax"),
Phone = row.GetValue<string>("Phone"),
PostalCode = row.GetValue<string>("PostalCode"),
Region = row.GetValue<string>("Region")
});
}
} catch {
currentCustomers.Add(new Customer() {
Address = "Obere Str. 57",
City = "Berlin",
CompanyName = "Alfreds Futterkiste",
ContactName = "Maria Anders",
ContactTitle = "Sales Representative",
Country = "Germany",
CustomerID = "ALFKI",
Fax = "030-0076545",
Phone = "030-0074321",
PostalCode = "12209"
});
}
}
public string CustomerID { get; set; }
public string CompanyName { get; set; }
public string ContactName { get; set; }
public string ContactTitle { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string PostalCode { get; set; }
public string Region { get; set; }
public string Country { get; set; }
public string Phone { get; set; }
public string Fax { get; set; }
}
}

View File

@@ -0,0 +1,71 @@
namespace EnvelopeGenerator.Server.Client.Data {
public class DataItem {
static readonly string[] accountType = new string[] { "Energy", "Manufacturing", "Estate", "Food", "Services" };
public string CustomerID { get; set; }
public string CompanyName { get; set; }
public string ContactName { get; set; }
public string ContactTitle { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string PostalCode { get; set; }
public string Region { get; set; }
public string Country { get; set; }
public string Phone { get; set; }
public string Fax { get; set; }
public string Email { get; set; }
public string Invoice { get; set; }
public string CustomerAccount { get; set; }
public string CustomerIdentifiers { get; set; }
public DateTime BillingDate { get; set; }
public DateTime BillingPeriodStart { get; set; }
public DateTime BillingPeriodEnd { get; set; }
public string Terms { get; set; }
public string TermsID { get; set; }
public Adjustment[] Adjustments { get; set; }
public DataItem(int i) {
var rnd = new DeterministicRandom(i);
Customer c = rnd.GetRandomItem(Customer.Customers);
CustomerID = c.CustomerID;
CompanyName = c.CompanyName;
ContactName = c.ContactName;
ContactTitle = c.ContactTitle;
Address = c.Address;
City = c.City;
PostalCode = c.PostalCode;
Region = c.Region;
Country = c.Country;
Phone = c.Phone;
Fax = c.Fax;
Email = ContactName.Split(' ')[0].Replace(' ', '.').ToLower() + "@" + CompanyName.Split(' ')[0].ToLower() + ".com";
Invoice = string.Format("{0}{1}-{2}", rnd.RandomChar, rnd.Random(100, 1000), rnd.Random(100, 1000));
CustomerAccount = rnd.GetRandomItem(accountType);
CustomerIdentifiers = string.Format("{0}-{1}", rnd.Random(1000, 10000), rnd.Random(10, 100));
BillingPeriodStart = rnd.RandomTime();
BillingPeriodEnd = rnd.RandomTime(BillingPeriodStart, 7 * 24, 30 * 24);
BillingDate = rnd.RandomTime(BillingPeriodEnd, 7 * 24, 30 * 24);
Term currentTerm = rnd.GetRandomItem(Term.Terms);
Terms = currentTerm.Name;
int adjustmentsCount = rnd.Random(6) + 4;
Adjustments = new Adjustment[adjustmentsCount];
int h = (int)((BillingPeriodEnd - BillingPeriodStart).TotalHours / adjustmentsCount);
Adjustments[0] = Adjustment.CreateBalanceForward(rnd.RandomTime(BillingPeriodStart, 0, h), rnd.Random(10000));
int[] items = rnd.RandomList(adjustmentsCount - 1, 2);
for(int j = 1; j < Adjustments.Length; j++) {
DateTime nextDate = rnd.RandomTime(BillingPeriodStart.AddHours(h * j), 0, h);
switch(items[j - 1]) {
case 0:
Adjustments[j] = Adjustment.CreateCharge(nextDate, rnd.Random(10000));
break;
case 1:
Adjustments[j] = Adjustment.CreatePayment(nextDate, rnd.Random(10000));
break;
}
}
}
}
}

View File

@@ -0,0 +1,70 @@
using System.Collections;
namespace EnvelopeGenerator.Server.Client.Data {
public class DataItemList : IList<DataItem>, IList {
readonly int rowCount;
public DataItem this[int index] { get { return new DataItem(index); } set { } }
public int Count { get { return rowCount; } }
public bool IsReadOnly { get { return false; } }
public bool IsFixedSize { get { return false; } }
public object SyncRoot { get { return true; } }
public bool IsSynchronized { get { return true; } }
object IList.this[int index] { get { return new DataItem(index); } set { } }
public DataItemList(int rowCount) {
this.rowCount = rowCount;
}
public IEnumerator<DataItem> GetEnumerator() {
throw new NotImplementedException();
}
public int Add(object value) {
throw new NotImplementedException();
}
public bool Contains(object value) {
throw new NotImplementedException();
}
public void Clear() {
throw new NotImplementedException();
}
public int IndexOf(object value) {
throw new NotImplementedException();
}
public void Insert(int index, object value) {
throw new NotImplementedException();
}
public void Remove(object value) {
throw new NotImplementedException();
}
public void RemoveAt(int index) {
throw new NotImplementedException();
}
public void CopyTo(Array array, int index) {
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator() {
throw new NotImplementedException();
}
public int IndexOf(DataItem item) {
throw new NotImplementedException();
}
public void Insert(int index, DataItem item) {
throw new NotImplementedException();
}
public void Add(DataItem item) {
throw new NotImplementedException();
}
public bool Contains(DataItem item) {
throw new NotImplementedException();
}
public void CopyTo(DataItem[] array, int arrayIndex) {
throw new NotImplementedException();
}
public bool Remove(DataItem item) {
throw new NotImplementedException();
}
void ICollection<DataItem>.CopyTo(DataItem[] array, int arrayIndex) {
CopyTo(array, arrayIndex);
}
}
}

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namespace EnvelopeGenerator.Server.Client.Data {
class DeterministicRandom {
const int randomCount = 10000;
static readonly int[] deterministicRandomNumbers;
static readonly DateTime time;
int rnd;
int Next {
get {
rnd = deterministicRandomNumbers[rnd % randomCount];
return rnd;
}
}
public char RandomChar {
get {
return (char)((int)'A' + Random(0, 26));
}
}
public int[] RandomList(int count, int to) {
int[] res = new int[count];
for(int i = 0; i < Math.Min(count, to); i++)
res[i] = i;
for(int i = to; i < count; i++)
res[i] = Random(to);
for(int i = 0; i < count; i++) {
int ind = Random(count);
int temp = res[ind];
res[ind] = res[i];
res[i] = temp;
}
return res;
}
public int Random(int to) {
return Random(0, to);
}
public int Random(int from, int to) {
return Next % Math.Max(1, to - from) + from;
}
public T GetRandomItem<T>(IList<T> list) {
return list[Next % list.Count];
}
public DateTime RandomTime() {
return RandomTime(time, 0, 30 * 24);
}
public DateTime RandomTime(DateTime from, int fromHours, int toHours) {
return from.AddHours(Next % (toHours - fromHours) + fromHours);
}
static DeterministicRandom() {
time = DateTime.Now.AddDays(-62);
Random currentRandom = new Random(randomCount);
deterministicRandomNumbers = new int[randomCount];
for(int i = 0; i < randomCount; i++)
deterministicRandomNumbers[i] = currentRandom.Next(randomCount);
}
public DeterministicRandom(int i) {
this.rnd = i + (i >> 10) + (i >> 20);
}
}
}

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namespace EnvelopeGenerator.Server.Client.Data {
public struct Term {
public static readonly Term[] Terms = new Term[] {
new Term("Payment seven days after invoice date" ),
new Term("Payment ten days after invoice date" ),
new Term("End of month" ),
new Term("21st of the month following invoice date" ),
};
readonly string currentName;
public string Name { get { return currentName; } }
public Term(string currentName) {
this.currentName = currentName;
}
}
}

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<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<NoDefaultLaunchSettingsFile>true</NoDefaultLaunchSettingsFile>
<StaticWebAssetProjectMode>Default</StaticWebAssetProjectMode>
<WasmBuildNative>true</WasmBuildNative>
<InvariantGlobalization>false</InvariantGlobalization>
<BlazorWebAssemblyLoadAllGlobalizationData>true</BlazorWebAssemblyLoadAllGlobalizationData>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="DevExpress.Blazor.PdfViewer" Version="25.2.3" />
<PackageReference Include="DevExpress.Blazor.Reporting.JSBasedControls" Version="25.2.3" />
<PackageReference Include="DevExpress.Blazor.Reporting.Viewer" Version="25.2.3" />
<PackageReference Include="DevExpress.Drawing.Skia" Version="25.2.3" />
<PackageReference Include="HarfBuzzSharp.NativeAssets.WebAssembly" Version="8.3.1.2" />
<PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="8.0.28" />
<PackageReference Include="Microsoft.Extensions.Http" Version="10.0.9" />
<PackageReference Include="SkiaSharp.NativeAssets.WebAssembly" Version="3.119.1" />
<PackageReference Include="SkiaSharp.Views.Blazor" Version="3.119.1" />
<NativeFileReference Include="$(HarfBuzzSharpStaticLibraryPath)\2.0.23\*.a" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.22" />
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.11" PrivateAssets="all" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\EnvelopeGenerator.Application\EnvelopeGenerator.Application.csproj" />
</ItemGroup>
<ItemGroup>
<Compile Update="PredefinedReports\Report.cs">
<SubType>XtraReport</SubType>
</Compile>
</ItemGroup>
</Project>

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<nav class="navbar header-navbar p-0">
<button class="navbar-toggler bg-primary d-block" @onclick="OnToggleClick">
<span class="navbar-toggler-icon"></span>
</button>
<div class="ms-3 fw-bold title pe-4">EnvelopeGenerator.ReceiverUI</div>
</nav>
@code {
[Parameter] public bool ToggleOn { get; set; }
[Parameter] public EventCallback<bool> ToggleOnChanged { get; set; }
async Task OnToggleClick() => await Toggle();
async Task Toggle(bool? value = null) {
var newValue = value ?? !ToggleOn;
if(ToggleOn != newValue) {
ToggleOn = newValue;
await ToggleOnChanged.InvokeAsync(ToggleOn);
}
}
}

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@using EnvelopeGenerator.Server.Client.Services;
@inherits LayoutComponentBase
<div class="page">
<main>
<article class="content">
@Body
</article>
</main>
<footer class="receiver-footer">
<span>&copy; SignFlow 2023-2024 <a href="https://digitaldata.works" target="_blank" rel="noopener">Digital Data GmbH</a></span>
<span class="receiver-footer__sep">&#124;</span>
<a href="docs/privacy-policy.de-DE.html" target="_blank" rel="noopener">Datenschutz</a>
</footer>
</div>
@code {
[Inject] IHttpClientFactory HttpClientFactory { get; set; } = default!;
List<string> RequiredFonts = new() {
"opensans.ttf"
};
protected async override Task OnInitializedAsync() {
await FontLoader.LoadFonts(HttpClientFactory, RequiredFonts);
await base.OnInitializedAsync();
}
}

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#blazor-error-ui {
background: lightyellow;
bottom: 0;
box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
display: none;
left: 0;
padding: 0.6rem 1.25rem 0.7rem 1.25rem;
position: fixed;
width: 100%;
z-index: 1000;
}
#blazor-error-ui .dismiss {
cursor: pointer;
position: absolute;
right: 0.75rem;
top: 0.5rem;
}

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<div class="top-row ps-3 navbar navbar-dark">
<div class="container-fluid">
<a class="navbar-brand" href="">EnvelopeGenerator.ReceiverUI</a>
<button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
<span class="navbar-toggler-icon"></span>
</button>
</div>
</div>
<div class="@NavMenuCssClass" @onclick="ToggleNavMenu">
<nav class="flex-column">
@*
<div class="nav-item px-3">
<NavLink class="nav-link" href="" Match="NavLinkMatch.All">
<span class="oi oi-home" aria-hidden="true"></span> Home
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="documentviewer">
<span class="oi oi-plus" aria-hidden="true"></span> Document Viewer (JS-Based)
</NavLink>
</div>
*@
<div class="nav-item px-3">
<NavLink class="nav-link" href="receiver">
<span class="oi oi-plus" aria-hidden="true"></span> Empfänger-UI
</NavLink>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="sender">
<span class="oi oi-plus" aria-hidden="true"></span> Umschlag-UI
</NavLink>
</div>
</nav>
</div>
@code {
private bool collapseNavMenu = true;
private string NavMenuCssClass => collapseNavMenu ? "collapse" : null;
private void ToggleNavMenu()
{
collapseNavMenu = !collapseNavMenu;
}
}

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namespace EnvelopeGenerator.Server.Client.Models;
/// <summary>
/// Represents a pre-assigned signature annotation position on a specific page.
/// <br/><br/>
/// <b>Coordinate unit (X, Y):</b> Inches (GdPicture14 native unit),
/// origin at the <b>top-left</b> corner of the page, both axes increase downward/rightward.
/// <br/><br/>
/// <b>Conversion to DevExpress:</b> Multiply by 100 (DX uses 1/100 inch).
/// Convert: <c>xDX = xInches * 100.0</c>
/// <br/>
/// <b>Conversion to PDF Points:</b> Multiply by 72 (1 inch = 72 points).
/// Convert: <c>xPt = xInches * 72.0</c>
/// <br/>
/// <b>Y-axis for PDF (bottom-left origin):</b> Flip required for iText7.
/// Convert: <c>yPt = (pageHeightInches - yInches - elemHeightInches) * 72.0</c>
/// </summary>
[Obsolete("Use SignatureDto with SignatureService.")]
public record AnnotationDto
{
/// <summary>Unique identifier of the annotation.</summary>
public long Id { get; init; }
/// <summary>1-based page number within the document.</summary>
public int Page { get; init; }
/// <summary>Horizontal position in INCHES from the left edge of the page.</summary>
public double X { get; init; }
/// <summary>Vertical position in INCHES from the top edge of the page.</summary>
public double Y { get; init; }
}

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namespace EnvelopeGenerator.Server.Client.Models.Constants
{
public enum SenderAppType
{
LegacyFormApp = 0,
ReceiverUIBlazorApp = 1
}
}

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namespace EnvelopeGenerator.Server.Client.Models.Constants;
/// <summary>
/// Represents the unit of measurement for coordinate values in signature positioning.
/// Used for converting coordinates between different systems (GdPicture14, PDF.js, iText7).
/// </summary>
public enum UnitOfLength
{
/// <summary>
/// Inch unit (1 inch = 25.4 mm).
/// This is the native unit used by GdPicture14 (EnvelopeGenerator.Form - Legacy VB.NET app).
/// Database stores all coordinates (X, Y, Width, Height) in INCHES.
/// </summary>
/// <remarks>
/// <b>Source:</b> GdPicture14.Annotations.AnnotationStickyNote uses INCHES natively.
/// <br/>
/// <b>Evidence:</b> VB.NET code directly assigns database values to annotation properties without conversion:
/// <code>
/// oAnnotation.Left = CSng(pElement.X) ' Direct assignment → INCHES
/// oAnnotation.Top = CSng(pElement.Y)
/// </code>
/// <b>Standard Page Dimensions:</b>
/// <list type="bullet">
/// <item>A4: 8.27" × 11.69" (210mm × 297mm)</item>
/// <item>Letter: 8.5" × 11"</item>
/// </list>
/// </remarks>
Inch = 0,
/// <summary>
/// PDF Point unit (1 point = 1/72 inch).
/// This is the standard unit used by PDF specification and PDF.js viewer.
/// </summary>
/// <remarks>
/// <b>Definition:</b> According to PDF specification and Microsoft documentation:
/// <br/>
/// <i>"PDF pages are sized in point units. 1 pt == 1/72 inch"</i>
/// <br/><br/>
/// <b>Conversion Formula:</b>
/// <code>
/// points = inches * 72.0
/// inches = points / 72.0
/// </code>
/// <b>Important:</b> Point ≠ Pixel!
/// <list type="bullet">
/// <item><b>Point (pt):</b> Device-independent unit (always 1/72 inch)</item>
/// <item><b>Pixel (px):</b> Device-dependent unit (varies with screen DPI)</item>
/// <item>At 72 DPI: 1 point = 1 pixel (coincidence)</item>
/// <item>At 96 DPI: 1 point ≈ 1.33 pixels</item>
/// <item>At 300 DPI: 1 point ≈ 4.17 pixels</item>
/// </list>
/// <b>Standard Page Dimensions (in points):</b>
/// <list type="bullet">
/// <item>A4: 595 × 842 points (8.27" × 11.69" × 72)</item>
/// <item>Letter: 612 × 792 points (8.5" × 11" × 72)</item>
/// </list>
/// <b>Usage in EnvelopeGenerator:</b>
/// <list type="bullet">
/// <item>PDF.js viewer expects coordinates in points</item>
/// <item>iText7 library uses points for PDF manipulation</item>
/// <item>PSPDFKit (Web) uses points for annotation placement</item>
/// </list>
/// </remarks>
Point
}

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namespace EnvelopeGenerator.Server.Client.Models;
/// <summary>
/// Client-side model for the envelope receiver returned by
/// <c>GET api/EnvelopeReceiver/{envelopeKey}</c>.
/// </summary>
public record EnvelopeReceiverDto
{
public int EnvelopeId { get; init; }
public int ReceiverId { get; init; }
public int Sequence { get; init; }
public string? Name { get; init; }
public string? JobTitle { get; init; }
public string? CompanyName { get; init; }
public string? PrivateMessage { get; init; }
public DateTime AddedWhen { get; init; }
public DateTime? ChangedWhen { get; init; }
public bool HasPhoneNumber { get; init; }
public EnvelopeClientDto? Envelope { get; init; }
public ReceiverClientDto? Receiver { get; init; }
}
/// <summary>
/// Client-side model for the envelope data embedded in <see cref="EnvelopeReceiverDto"/>.
/// </summary>
public record EnvelopeClientDto
{
public int Id { get; init; }
public int UserId { get; init; }
public int Status { get; init; }
public string StatusName { get; init; } = string.Empty;
public string Uuid { get; init; } = string.Empty;
public string Title { get; init; } = string.Empty;
public string Message { get; init; } = string.Empty;
public DateTime AddedWhen { get; init; }
public DateTime? ChangedWhen { get; init; }
public string Language { get; init; } = "de-DE";
public int? EnvelopeTypeId { get; init; }
public string? EnvelopeTypeTitle { get; init; }
public int? ContractType { get; init; }
public int? CertificationType { get; init; }
public bool UseAccessCode { get; init; }
public bool TFAEnabled { get; init; }
public IEnumerable<DocumentClientDto>? Documents { get; init; }
public EnvelopeSenderDto? User { get; init; }
}
/// <summary>
/// Sender (user) information embedded in <see cref="EnvelopeClientDto"/>.
/// </summary>
public record EnvelopeSenderDto
{
public int Id { get; init; }
public string? Username { get; init; }
public string? FullName { get; init; }
public string? Email { get; init; }
}
/// <summary>
/// Client-side model for a document embedded in <see cref="EnvelopeClientDto"/>.
/// </summary>
public record DocumentClientDto
{
public int Id { get; init; }
public int EnvelopeId { get; init; }
public DateTime AddedWhen { get; init; }
public IEnumerable<SignatureClientDto>? Elements { get; init; }
}
/// <summary>
/// Client-side model for a signature/annotation element embedded in <see cref="DocumentClientDto"/>.
/// </summary>
public record SignatureClientDto
{
public int Id { get; init; }
public int DocumentId { get; init; }
public int ReceiverId { get; init; }
public int ElementType { get; init; }
public double X { get; init; }
public double Y { get; init; }
public double Width { get; init; }
public double Height { get; init; }
public int Page { get; init; }
public bool Required { get; init; }
public string? Tooltip { get; init; }
public bool ReadOnly { get; init; }
public int AnnotationIndex { get; init; }
public DateTime AddedWhen { get; init; }
public DateTime? ChangedWhen { get; init; }
}
/// <summary>
/// Client-side model for the receiver data embedded in <see cref="EnvelopeReceiverDto"/>.
/// </summary>
public record ReceiverClientDto
{
public int Id { get; init; }
public string? EmailAddress { get; init; }
public string? Signature { get; init; }
public DateTime AddedWhen { get; init; }
public DateTime? TfaRegDeadline { get; init; }
}

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namespace EnvelopeGenerator.Server.Client.Models;
/// <summary>
/// Represents a captured signature with metadata created by the receiver in the signature popup.
/// This model holds the signature image (as base64 data URL) along with signer information
/// used for rendering applied signatures on the PDF canvas.
/// </summary>
/// <remarks>
/// <b>Used in:</b> EnvelopeViewer.razor signature popup workflow
/// <br/>
/// <b>Creation:</b> User draws/types/uploads signature and fills required fields
/// <br/>
/// <b>Storage:</b> Session-only (Blazor component state, lost on page refresh)
/// <br/>
/// <b>Rendering:</b> Applied signatures display: Image + Separator + Name/Position/Place/Date
/// </remarks>
public sealed record SignatureCaptureDto
{
/// <summary>
/// Base64-encoded data URL of the signature image.
/// <br/>
/// <b>Format:</b> <c>data:image/png;base64,iVBORw0KG...</c>
/// <br/>
/// <b>Source:</b> Canvas.toDataURL() from signature pad (draw/text/image tabs)
/// <br/>
/// <b>Usage:</b> Set as <c>img.src</c> in applied signature overlay
/// </summary>
public required string DataUrl { get; init; }
/// <summary>
/// Full name of the signer (first and last name).
/// <br/>
/// <b>Required:</b> Yes (validated in popup)
/// <br/>
/// <b>Display:</b> Bold text in applied signature block
/// <br/>
/// <b>Example:</b> "Max Mustermann"
/// </summary>
public required string FullName { get; init; }
/// <summary>
/// Job title or position of the signer.
/// <br/>
/// <b>Required:</b> No (optional field)
/// <br/>
/// <b>Display:</b> Normal weight text between name and place/date
/// <br/>
/// <b>Example:</b> "Geschäftsführer" or empty string
/// </summary>
public string Position { get; init; } = string.Empty;
/// <summary>
/// Location/place where the signature was created.
/// <br/>
/// <b>Required:</b> Yes (validated in popup)
/// <br/>
/// <b>Display:</b> Shown with current date in German format (dd.MM.yyyy)
/// <br/>
/// <b>Example:</b> "Berlin" ? rendered as "Berlin, 26.01.2025"
/// </summary>
public required string Place { get; init; }
}

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using EnvelopeGenerator.Server.Client.Models.Constants;
namespace EnvelopeGenerator.Server.Client.Models;
/// <summary>
/// Represents a signature position on a PDF page.
/// Coordinates stored in INCHES (GdPicture14 native unit).
/// Origin: Top-left corner, X increases right, Y increases down.
/// </summary>
public class SignatureDto
{
/// <summary>Unique identifier.</summary>
public int Id { get; init; }
private double _x;
private double _y;
/// <summary>Horizontal position in INCHES from left edge.</summary>
public double X
{
get => _x * Factor;
init => _x = value;
}
/// <summary>Vertical position in INCHES from top edge.</summary>
public double Y
{
get => _y * Factor;
init => _y = value;
}
/// <summary>1-based page number.</summary>
public int Page { get; init; }
/// <summary>Sender application type that created this signature.</summary>
public SenderAppType SenderAppType { get; init; }
private UnitOfLength _unitOfLength;
public SignatureDto Convert(UnitOfLength unitOfLength)
{
_unitOfLength = unitOfLength;
return this;
}
public double Factor
{
get
{
if (SenderAppType != SenderAppType.LegacyFormApp)
{
throw new NotImplementedException(
$"SenderAppType '{SenderAppType}' is not yet implemented. " +
$"Currently, only '{nameof(SenderAppType.LegacyFormApp)}' is supported. " +
$"Future implementations will handle '{nameof(SenderAppType.ReceiverUIBlazorApp)}' and other types.");
}
// LegacyFormApp uses GdPicture14 with INCHES
return _unitOfLength switch
{
UnitOfLength.Inch => 1.0, // No conversion needed: INCHES → INCHES
UnitOfLength.Point => 72.0, // INCHES → PDF Points: 1 inch = 72 points (PDF standard, NOT pixels!)
_ => throw new InvalidOperationException(
$"Unknown UnitOfLength: {_unitOfLength}. Expected '{nameof(UnitOfLength.Inch)}' or '{nameof(UnitOfLength.Point)}'.")
};
}
}
}
public static class SignatureDtoExtensions
{
/// <summary>
/// Converts all signatures in the collection to the specified unit of length.
/// </summary>
/// <typeparam name="T">Type of the collection (IEnumerable, List, etc.)</typeparam>
/// <param name="signatures">Collection of SignatureDto objects to convert.</param>
/// <param name="unitOfLength">Target unit of measurement (Inch or Point).</param>
/// <returns>The same collection with all signatures converted to the specified unit.</returns>
/// <exception cref="ArgumentNullException">Thrown when signatures collection is null.</exception>
/// <remarks>
/// <b>Usage:</b>
/// <code>
/// var signatures = await SignatureService.GetAsync(envelopeKey);
/// var convertedSignatures = signatures.ConvertAll(UnitOfLength.Point);
/// </code>
/// <b>Note:</b> This method modifies each SignatureDto object in place and returns the same collection.
/// </remarks>
public static T Convert<T>(this T signatures, UnitOfLength unitOfLength)
where T : IEnumerable<SignatureDto>
{
if (signatures == null)
throw new ArgumentNullException(nameof(signatures));
foreach (var signature in signatures)
{
signature.Convert(unitOfLength);
}
return signatures;
}
}

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namespace EnvelopeGenerator.Server.Client.Options;
public class ApiOptions
{
public const string SectionName = "Api";
public bool UsePredefinedReports { get; set; } = false;
}

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namespace EnvelopeGenerator.Server.Client.Options;
public class PdfViewerOptions
{
public const string SectionName = "PdfViewer";
/// <summary>
/// Base scale for thumbnail rendering (0.2 - 1.5 recommended)
/// Higher values = better quality but slower rendering
/// Default: 0.75
/// </summary>
public double ThumbnailBaseScale { get; set; } = 0.75;
/// <summary>
/// Enable HiDPI/Retina support for thumbnails
/// Default: true
/// </summary>
public bool ThumbnailEnableHiDPI { get; set; } = true;
/// <summary>
/// Maximum device pixel ratio multiplier for thumbnails (1.0 - 3.0)
/// Caps DPR to avoid excessive memory usage on 4K+ displays
/// Default: 2.0
/// </summary>
public double ThumbnailMaxDPR { get; set; } = 2.0;
/// <summary>
/// Enable HiDPI/Retina support for main PDF canvas
/// Default: true
/// </summary>
public bool MainCanvasEnableHiDPI { get; set; } = true;
/// <summary>
/// Maximum device pixel ratio multiplier for main canvas (1.0 - 3.0)
/// Default: 2.0
/// </summary>
public double MainCanvasMaxDPR { get; set; } = 2.0;
/// <summary>
/// Enable smooth zoom transition (fade effect)
/// Default: true
/// </summary>
public bool EnableSmoothZoom { get; set; } = true;
/// <summary>
/// Zoom transition duration in milliseconds (50 - 500)
/// Default: 150
/// </summary>
public int ZoomTransitionDuration { get; set; } = 150;
/// <summary>
/// Opacity during rendering (0.0 - 1.0)
/// Lower values = more visible fade effect
/// Default: 0.85
/// </summary>
public double RenderingOpacity { get; set; } = 0.85;
/// <summary>
/// Delay between thumbnail renders in milliseconds (10 - 200)
/// Higher values = less browser stress, slower initial load
/// Default: 50
/// </summary>
public int ThumbnailRenderDelay { get; set; } = 50;
/// <summary>
/// Zoom step percentage (1 - 50)
/// Controls how much zoom changes per click or scroll
/// Default: 5 (5% per step)
/// </summary>
public int ZoomStepPercentage { get; set; } = 5;
}

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@page "/sender"
@rendermode @(new InteractiveWebAssemblyRenderMode(prerender: false))
@using System.Text.Json
@using EnvelopeGenerator.Domain.Constants
@using EnvelopeGenerator.Server.Client.Models
@using DevExpress.Blazor
@using EnvelopeGenerator.Server.Client.Services
@inject EnvelopeGenerator.Server.Client.Services.EnvelopeService EnvelopeService
@inject EnvelopeGenerator.Server.Client.Services.AuthService AuthService
@inject NavigationManager Navigation
@inject IJSRuntime JSRuntime
@inject AppVersionService AppVersion
@using EnvelopeGenerator.Application.Common.Dto
@inject EnvelopeGenerator.Server.Client.Services.EnvelopeService EnvelopeService
@inject EnvelopeGenerator.Server.Client.Services.AuthService AuthService
@inject NavigationManager Navigation
@inject IJSRuntime JSRuntime
@inject AppVersionService AppVersion
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<link href="@AppVersion.GetVersionedUrl("css/envelope-viewer.css")" rel="stylesheet" />
<link href="@AppVersion.GetVersionedUrl("css/sender-page.css")" rel="stylesheet" />
<div class="sender-dashboard-layout">
<div class="sender-action-bar">
<div class="sender-action-bar__inner">
<div class="sender-title-section">
<div class="sender-logo">
<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="currentColor" viewBox="0 0 16 16">
<path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V4Zm2-1a1 1 0 0 0-1 1v.217l7 4.2 7-4.2V4a1 1 0 0 0-1-1H2Zm13 2.383-4.708 2.825L15 11.105V5.383Zm-.034 6.876-5.64-3.471L8 9.583l-1.326-.795-5.64 3.47A1 1 0 0 0 2 13h12a1 1 0 0 0 .966-.741ZM1 11.105l4.708-2.897L1 5.383v5.722Z"/>
</svg>
</div>
<div class="sender-title">Umschlag-Übersicht</div>
</div>
<div class="sender-toolbar">
<button class="sender-btn sender-btn--primary" @onclick="CreateEnvelope" title="Neuen Umschlag erstellen">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z"/>
</svg>
Neuer Umschlag
</button>
<button class="sender-btn" @onclick="EditEnvelope" disabled="@(_selectedEnvelope == null || IsEnvelopeSent(_selectedEnvelope))" title="Ausgewählten Umschlag bearbeiten">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z"/>
</svg>
Bearbeiten
</button>
<button class="sender-btn sender-btn--danger" @onclick="DeleteEnvelope" disabled="@(_selectedEnvelope == null)" title="Ausgewählten Umschlag löschen">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6z"/>
<path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/>
</svg>
Löschen
</button>
<button class="sender-btn" @onclick="RefreshEnvelopes" disabled="@_isLoading" title="Aktualisieren">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z"/>
<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z"/>
</svg>
@if (_isLoading) {
<span class="spinner-border spinner-border-sm" style="width: 14px; height: 14px;"></span>
}
</button>
<button class="sender-btn sender-btn--logout" @onclick="LogoutAsync" disabled="@_isLoggingOut" title="Abmelden">
@if (_isLoggingOut) {
<span class="spinner-border spinner-border-sm" style="width: 14px; height: 14px;"></span>
} else {
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M10 12.5a.5.5 0 0 1-.5.5h-8a.5.5 0 0 1-.5-.5v-9a.5.5 0 0 1 .5-.5h8a.5.5 0 0 1 .5.5v2a.5.5 0 0 0 1 0v-2A1.5 1.5 0 0 0 9.5 2h-8A1.5 1.5 0 0 0 0 3.5v9A1.5 1.5 0 0 0 1.5 14h8a1.5 1.5 0 0 0 1.5-1.5v-2a.5.5 0 0 0-1 0v2z"/>
<path fill-rule="evenodd" d="M15.854 8.354a.5.5 0 0 0 0-.708l-3-3a.5.5 0 0 0-.708.708L14.293 7.5H5.5a.5.5 0 0 0 0 1h8.793l-2.147 2.146a.5.5 0 0 0 .708.708l3-3z"/>
</svg>
}
</button>
</div>
</div>
</div>
<div class="sender-content">
@if (_isLoading && _allEnvelopes == null) {
<div class="d-flex justify-content-center align-items-center h-100">
<div class="text-center">
<div class="spinner-border text-white mb-3" style="width: 3.5rem; height: 3.5rem;" role="status">
<span class="visually-hidden">Lädt...</span>
</div>
<p class="text-white fw-semibold">Umschläge werden geladen...</p>
</div>
</div>
} else if (_errorMessage != null) {
<div class="error-container">
<div class="alert alert-danger shadow-lg">
<div class="d-flex align-items-start">
<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" fill="currentColor" class="me-3 flex-shrink-0" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
<path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z"/>
</svg>
<div>
<h5 class="mb-2">Fehler beim Laden der Umschläge</h5>
<p class="mb-0">@_errorMessage</p>
</div>
</div>
</div>
</div>
} else {
<div class="sender-grid-container">
<div class="sender-tabs">
<button class="sender-tab @(_activeTab == "active" ? "sender-tab--active" : "")" @onclick='() => _activeTab = "active"'>
<span>Aktive Umschläge</span>
@if (_activeEnvelopes != null) {
<span style="opacity: 0.6; margin-left: 0.5rem;">(@_activeEnvelopes.Count())</span>
}
</button>
<button class="sender-tab @(_activeTab == "completed" ? "sender-tab--active" : "")" @onclick='() => _activeTab = "completed"'>
<span>Abgeschlossene Umschläge</span>
@if (_completedEnvelopes != null) {
<span style="opacity: 0.6; margin-left: 0.5rem;">(@_completedEnvelopes.Count())</span>
}
</button>
</div>
<div class="sender-grid-wrapper">
@if (_activeTab == "active") {
<DxGrid Data="@_activeEnvelopes"
@ref="_gridActive"
ShowFilterRow="true"
ShowSearchBox="true"
AllowColumnReorder="true"
AllowSort=true
ColumnResizeMode="GridColumnResizeMode.ColumnsContainer"
PageSize="20"
PagerVisible="true"
SelectionMode="GridSelectionMode.Single"
SelectedDataItem="@_selectedEnvelope"
SelectedDataItemChanged="@OnSelectedEnvelopeChanged"
CustomizeElement="OnCustomizeElement">
<Columns>
<DxGridDataColumn FieldName="Id" Caption="ID"
SortIndex="0"
SortOrder="GridColumnSortOrder.Descending">
<CellDisplayTemplate Context="cellContext">
@((cellContext.DataItem as EnvelopeDto)?.Id)
</CellDisplayTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="Title" Caption="Titel">
<CellDisplayTemplate Context="cellContext">
<strong>@((cellContext.DataItem as EnvelopeDto)?.Title)</strong>
</CellDisplayTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="Status" Caption="Status">
<CellDisplayTemplate Context="cellContext">
@{
var envelope = cellContext.DataItem as EnvelopeDto;
if (envelope != null) {
var statusInfo = GetStatusInfo(envelope.Status);
<div class="status-badge status-badge--@statusInfo.CssClass">
<span class="status-dot status-dot--@statusInfo.DotColor"></span>
@statusInfo.Label
</div>
}
}
</CellDisplayTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="EnvelopeReceivers" Caption="Empfänger">
<CellDisplayTemplate Context="cellContext">
@{
var envelope = cellContext.DataItem as EnvelopeDto;
if (envelope != null) {
var receivers = envelope.EnvelopeReceivers?.ToList() ?? [];
var signed = receivers.Count(r => r.Signed);
var total = receivers.Count;
<div style="display: flex; align-items: center; gap: 0.5rem;">
<span style="font-size: 0.875rem; color: #6b7280;">
@signed / @total unterschrieben
</span>
@if (total > 0) {
<div style="flex: 1; min-width: 60px; max-width: 120px; height: 6px; background: #e5e7eb; border-radius: 3px; overflow: hidden;">
<div style="height: 100%; background: linear-gradient(90deg, #81c784 0%, #66bb6a 100%); width: @((signed * 100.0 / total).ToString("F0"))%;"></div>
</div>
}
</div>
}
}
</CellDisplayTemplate>
</DxGridDataColumn>
</Columns>
<DetailRowTemplate Context="detailContext">
<div style="padding: 1rem; background: #f9fafb;">
<h6 style="font-weight: 600; color: #374151; margin-bottom: 0.75rem;">Empfänger</h6>
@{
var envelope = detailContext.DataItem as EnvelopeDto;
if (envelope?.EnvelopeReceivers?.Any() == true) {
<div style="display: flex; flex-direction: column; gap: 0.5rem;">
@foreach (var receiver in envelope.EnvelopeReceivers) {
<div style="display: flex; align-items: center; gap: 1rem; padding: 0.5rem; background: white; border-radius: 6px; border: 1px solid #e5e7eb;">
<span class="receiver-badge receiver-badge--@(receiver.Signed ? "signed" : "unsigned")" style="min-width: 100px;">
@if (receiver.Signed) {
<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
</svg>
<span>Unterschrieben</span>
} else {
<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
<path d="M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z"/>
</svg>
<span>Ausstehend</span>
}
</span>
<div style="flex: 1; font-size: 0.875rem;">
<strong style="color: #1f2937;">@receiver.Name</strong>
<span style="color: #6b7280; margin-left: 0.5rem;">@receiver.Receiver?.EmailAddress</span>
</div>
</div>
}
</div>
} else {
<p style="color: #9ca3af; font-size: 0.875rem; margin: 0;">Keine Empfänger</p>
}
}
</div>
</DetailRowTemplate>
</DxGrid>
} else {
<DxGrid Data="@_completedEnvelopes"
@ref="_gridCompleted"
ShowFilterRow="true"
ShowSearchBox="true"
PageSize="20"
PagerVisible="true"
SelectionMode="GridSelectionMode.Single"
SelectedDataItem="@_selectedEnvelope"
SelectedDataItemChanged="@OnSelectedEnvelopeChanged"
CustomizeElement="OnCustomizeElement">
<Columns>
<DxGridDataColumn FieldName="Id" Caption="ID"
SortIndex="0"
SortOrder="GridColumnSortOrder.Descending">
<CellDisplayTemplate Context="cellContext">
@((cellContext.DataItem as EnvelopeDto)?.Id)
</CellDisplayTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="Title" Caption="Titel">
<CellDisplayTemplate Context="cellContext">
<strong>@((cellContext.DataItem as EnvelopeDto)?.Title)</strong>
</CellDisplayTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="Status" Caption="Status">
<CellDisplayTemplate Context="cellContext">
@{
var envelope = cellContext.DataItem as EnvelopeDto;
if (envelope != null) {
var statusInfo = GetStatusInfo(envelope.Status);
<div class="status-badge status-badge--@statusInfo.CssClass">
<span class="status-dot status-dot--@statusInfo.DotColor"></span>
@statusInfo.Label
</div>
}
}
</CellDisplayTemplate>
</DxGridDataColumn>
<DxGridDataColumn FieldName="EnvelopeReceivers" Caption="Empfänger">
<CellDisplayTemplate Context="cellContext">
@{
var envelope = cellContext.DataItem as EnvelopeDto;
if (envelope != null) {
var receivers = envelope.EnvelopeReceivers?.ToList() ?? [];
var signed = receivers.Count(r => r.Signed);
var total = receivers.Count;
<div style="display: flex; align-items: center; gap: 0.5rem;">
<span style="font-size: 0.875rem; color: #6b7280;">
@signed / @total unterschrieben
</span>
@if (total > 0) {
<div style="flex: 1; min-width: 60px; max-width: 120px; height: 6px; background: #e5e7eb; border-radius: 3px; overflow: hidden;">
<div style="height: 100%; background: linear-gradient(90deg, #81c784 0%, #66bb6a 100%); width: @((signed * 100.0 / total).ToString("F0"))%;"></div>
</div>
}
</div>
}
}
</CellDisplayTemplate>
</DxGridDataColumn>
</Columns>
<DetailRowTemplate Context="detailContext">
<div style="padding: 1rem; background: #f9fafb;">
<h6 style="font-weight: 600; color: #374151; margin-bottom: 0.75rem;">Empfänger</h6>
@{
var envelope = detailContext.DataItem as EnvelopeDto;
if (envelope?.EnvelopeReceivers?.Any() == true) {
<div style="display: flex; flex-direction: column; gap: 0.5rem;">
@foreach (var receiver in envelope.EnvelopeReceivers) {
<div style="display: flex; align-items: center; gap: 1rem; padding: 0.5rem; background: white; border-radius: 6px; border: 1px solid #e5e7eb;">
<span class="receiver-badge receiver-badge--@(receiver.Signed ? "signed" : "unsigned")" style="min-width: 100px;">
@if (receiver.Signed) {
<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
</svg>
<span>Unterschrieben</span>
} else {
<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
<path d="M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z"/>
</svg>
<span>Ausstehend</span>
}
</span>
<div style="flex: 1; font-size: 0.875rem;">
<strong style="color: #1f2937;">@receiver.Name</strong>
<span style="color: #6b7280; margin-left: 0.5rem;">@receiver.Receiver?.EmailAddress</span>
</div>
</div>
}
</div>
} else {
<p style="color: #9ca3af; font-size: 0.875rem; margin: 0;">Keine Empfänger</p>
}
}
</div>
</DetailRowTemplate>
</DxGrid>
}
</div>
</div>
}
</div>
</div>
@code {
private IEnumerable<EnvelopeDto>? _allEnvelopes;
private IEnumerable<EnvelopeDto>? _activeEnvelopes;
private IEnumerable<EnvelopeDto>? _completedEnvelopes;
private EnvelopeDto? _selectedEnvelope;
private string _activeTab = "active";
private bool _isLoading = true;
private bool _isLoggingOut = false;
private string? _errorMessage;
private DxGrid? _gridActive;
private DxGrid? _gridCompleted;
protected override async Task OnInitializedAsync()
{
var hasAccess = await AuthService.CheckSenderAccessAsync();
if (!hasAccess)
{
Navigation.NavigateTo($"/sender/login");
return;
}
await LoadEnvelopesAsync();
}
async Task LoadEnvelopesAsync()
{
_isLoading = true;
_errorMessage = null;
await InvokeAsync(StateHasChanged);
try
{
_allEnvelopes = await EnvelopeService.GetAsync() ?? [];
// Split into active and completed based on status
var envelopes = _allEnvelopes.ToList();
_activeEnvelopes = envelopes.Where(e => ((EnvelopeStatus)e.Status).IsActive()).ToList();
_completedEnvelopes = envelopes.Where(e => ((EnvelopeStatus)e.Status).IsCompleted()).ToList();
await JSRuntime.InvokeVoidAsync("console.log", $"Loaded {_activeEnvelopes.Count()} active and {_completedEnvelopes.Count()} completed envelopes");
}
catch (Exception ex)
{
_errorMessage = ex.Message;
await JSRuntime.InvokeVoidAsync("console.error", "Fehler beim Laden der Umschläge:", ex.ToString());
}
finally
{
_isLoading = false;
await InvokeAsync(StateHasChanged);
}
}
async Task RefreshEnvelopes()
{
await LoadEnvelopesAsync();
}
void CreateEnvelope()
{
Navigation.NavigateTo("/sender/editor");
}
void EditEnvelope()
{
if (_selectedEnvelope == null) return;
// TODO: Navigate to envelope editor
JSRuntime.InvokeVoidAsync("console.log", $"Edit envelope {_selectedEnvelope.Id} clicked - not yet implemented");
}
void DeleteEnvelope()
{
if (_selectedEnvelope == null) return;
// TODO: Show delete confirmation dialog
JSRuntime.InvokeVoidAsync("console.log", $"Delete envelope {_selectedEnvelope.Id} clicked - not yet implemented");
}
async Task LogoutAsync()
{
_isLoggingOut = true;
await InvokeAsync(StateHasChanged);
await AuthService.LogoutSenderAsync();
Navigation.NavigateTo("/sender/login", forceLoad: true);
}
bool IsEnvelopeSent(EnvelopeDto envelope)
{
var status = (EnvelopeStatus)envelope.Status;
return status >= EnvelopeStatus.EnvelopeQueued;
}
(string Label, string CssClass, string DotColor) GetStatusInfo(EnvelopeStatus status)
{
return status switch
{
EnvelopeStatus.EnvelopePartlySigned => ("Teilweise unterschrieben", "partly-signed", "green"),
EnvelopeStatus.EnvelopeQueued => ("In Warteschlange", "queued", "orange"),
EnvelopeStatus.EnvelopeSent => ("Gesendet", "sent", "orange"),
EnvelopeStatus.EnvelopeCompletelySigned => ("Vollständig unterschrieben", "completed", "green"),
EnvelopeStatus.EnvelopeDeleted => ("Gelöscht", "deleted", "red"),
EnvelopeStatus.EnvelopeRejected => ("Abgelehnt", "rejected", "red"),
EnvelopeStatus.EnvelopeWithdrawn => ("Zurückgezogen", "withdrawn", "red"),
EnvelopeStatus.EnvelopeCreated => ("Erstellt", "created", "blue"),
EnvelopeStatus.EnvelopeSaved => ("Gespeichert", "saved", "blue"),
_ => ("Unbekannt", "unknown", "blue")
};
}
void OnCustomizeElement(GridCustomizeElementEventArgs e)
{
// Future: Add custom row coloring based on status if needed
}
void OnSelectedEnvelopeChanged(object envelope)
{
_selectedEnvelope = envelope as EnvelopeDto;
}
}

View File

@@ -0,0 +1,85 @@
@page "/"
@inject IJSRuntime JS
@inject NavigationManager Navigation
@rendermode InteractiveWebAssembly
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<div class="home-page-wrapper">
<div class="home-hero-header">
<div class="home-hero-header__inner">
<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" fill="currentColor" class="home-hero-header__icon" viewBox="0 0 16 16">
<path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V4Zm2-1a1 1 0 0 0-1 1v.217l7 4.2 7-4.2V4a1 1 0 0 0-1-1H2Zm13 2.383-4.708 2.825L15 11.105V5.383Zm-.034 6.876-5.64-3.471L8 9.583l-1.326-.795-5.64 3.47A1 1 0 0 0 2 13h12a1 1 0 0 0 .966-.741ZM1 11.105l4.708-2.897L1 5.383v5.722Z"/>
</svg>
<div>
<h1 class="home-hero-header__title">SignFlow</h1>
<p class="home-hero-header__subtitle">Willkommen im eSign-Portal</p>
</div>
</div>
</div>
<div class="home-content">
<div class="home-card card shadow border-0">
<div class="card-body p-4 p-md-5">
<p class="text-muted mb-4" style="font-size: 0.92rem; line-height: 1.7; text-align: justify; text-align-last: left; min-height: calc(0.92rem * 1.7 * 9);">
<span id="home-description"></span>
</p>
<div class="mt-4 pt-3 border-top d-flex flex-column align-items-center gap-4">
<button class="home-btn-primary btn px-4 py-2 d-flex align-items-center gap-2" @onclick='() => Navigation.NavigateTo("/sender")'>
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" viewBox="0 0 16 16">
<path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V4Zm2-1a1 1 0 0 0-1 1v.217l7 4.2 7-4.2V4a1 1 0 0 0-1-1H2Zm13 2.383-4.708 2.825L15 11.105V5.383Zm-.034 6.876-5.64-3.471L8 9.583l-1.326-.795-5.64 3.47A1 1 0 0 0 2 13h12a1 1 0 0 0 .966-.741ZM1 11.105l4.708-2.897L1 5.383v5.722Z"/>
</svg>
Zur Umschlag-Übersicht
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z"/>
</svg>
</button>
<div class="d-flex flex-wrap justify-content-center gap-3">
<div class="home-feature-badge">
<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M8 1a2 2 0 0 1 2 2v4H6V3a2 2 0 0 1 2-2zm3 6V3a3 3 0 0 0-6 0v4a2 2 0 0 0-2 2v5a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2z"/>
</svg>
Sicherer Zugang
</div>
<div class="home-feature-badge">
<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
</svg>
Digitale Unterschrift
</div>
<div class="home-feature-badge">
<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M.5 9.9a.5.5 0 0 1 .5.5v2.5a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-2.5a.5.5 0 0 1 1 0v2.5a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2v-2.5a.5.5 0 0 1 .5-.5z"/>
<path d="M7.646 11.854a.5.5 0 0 0 .708 0l3-3a.5.5 0 0 0-.708-.708L8.5 10.293V1.5a.5.5 0 0 0-1 0v8.793L5.354 8.146a.5.5 0 1 0-.708.708l3 3z"/>
</svg>
PDF-Export
</div>
</div>
</div>
</div>
</div>
</div>
</div>
@code {
private const string HomePageDescription =
"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.";
protected override async Task OnAfterRenderAsync(bool firstRender)
{
if (firstRender)
{
await JS.InvokeVoidAsync("receiverSignature.startTyped", "home-description", HomePageDescription, 15);
}
}
}

View File

@@ -0,0 +1,173 @@
@page "/envelope/login/{EnvelopeKey}"
@rendermode InteractiveWebAssembly
@using EnvelopeGenerator.Server.Client.Services
@inject AuthService AuthService
@inject NavigationManager Navigation
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<div class="login-page-wrapper d-flex align-items-center justify-content-center min-vh-100">
<div class="login-card card shadow border-0" style="max-width: 440px; width: 100%;">
<div class="card-header text-white text-center py-4 border-0" style="background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%); border-radius: calc(0.375rem - 1px) calc(0.375rem - 1px) 0 0;">
<div class="mb-2">
<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" fill="currentColor" viewBox="0 0 16 16">
<path d="M8 1a2 2 0 0 1 2 2v4H6V3a2 2 0 0 1 2-2zm3 6V3a3 3 0 0 0-6 0v4a2 2 0 0 0-2 2v5a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2z" />
</svg>
</div>
<h5 class="mb-0 fw-semibold">Dokument öffnen</h5>
<p class="mb-0 mt-1 opacity-75" style="font-size: 0.85rem;">Sicherer Zugang mit Zugangscode</p>
</div>
<div class="card-body p-4">
<p class="text-muted mb-4" style="font-size: 0.875rem; line-height: 1.5;">
Bitte geben Sie den Zugangscode ein, den Sie per E-Mail erhalten haben, um das Dokument sicher zu öffnen.
</p>
@if (LoginResult == EnvelopeLoginResult.NotFound)
{
<div class="alert alert-warning d-flex align-items-start gap-2 py-2" role="alert">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="flex-shrink-0 mt-1" viewBox="0 0 16 16">
<path d="M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 5c.535 0 .954.462.9.995l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995A.905.905 0 0 1 8 5zm.002 6a1 1 0 1 1 0 2 1 1 0 0 1 0-2z" />
</svg>
<div>
<strong>Dokument nicht gefunden.</strong><br />
<span style="font-size:0.85rem;">Der angegebene Zugangscode konnte keinem Dokument zugeordnet werden. Bitte prüfen Sie den Link in Ihrer E-Mail.</span>
</div>
</div>
}
else if (LoginResult == EnvelopeLoginResult.InvalidCode)
{
<div class="alert alert-danger d-flex align-items-start gap-2 py-2" role="alert">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="flex-shrink-0 mt-1" viewBox="0 0 16 16">
<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z" />
</svg>
<div>
<strong>Ungültiger Zugangscode.</strong><br />
<span style="font-size:0.85rem;">Der eingegebene Code ist falsch. Bitte versuchen Sie es erneut.</span>
</div>
</div>
}
else if (LoginResult == EnvelopeLoginResult.Error)
{
<div class="alert alert-secondary d-flex align-items-start gap-2 py-2" role="alert">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="flex-shrink-0 mt-1" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z" />
<path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z" />
</svg>
<div>
<strong>Serverfehler.</strong><br />
<span style="font-size:0.85rem;">Ein unerwarteter Fehler ist aufgetreten. Bitte versuchen Sie es später erneut.</span>
</div>
</div>
}
<div class="mb-4">
<label class="form-label fw-medium" for="login-access-code">
Zugangscode
<span class="text-danger ms-1">*</span>
</label>
<div class="input-group">
<span class="input-group-text bg-light border-end-0">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="#6c757d" viewBox="0 0 16 16">
<path d="M3.5 11.5a3.5 3.5 0 1 1 3.163-5H14L15.5 8 14 9.5l-1-1-1 1-1-1-1 1-1-1-1.837 1.337A3.5 3.5 0 0 1 3.5 11.5zm0-1a2.5 2.5 0 1 0 0-5 2.5 2.5 0 0 0 0 5z" />
</svg>
</span>
<input id="login-access-code"
type="@(ShowCode ? "text" : "password")"
class="form-control border-start-0 border-end-0 @(LoginResult == EnvelopeLoginResult.InvalidCode ? "is-invalid" : null)"
placeholder="Zugangscode eingeben"
@bind="AccessCode"
@bind:event="oninput"
@onkeydown="OnKeyDownAsync"
disabled="@IsLoading"
autocomplete="one-time-code" />
<button type="button"
class="btn btn-outline-secondary border-start-0"
style="border-left: none;"
tabindex="-1"
@onclick="() => ShowCode = !ShowCode">
@if (ShowCode)
{
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M13.359 11.238C15.06 9.72 16 8 16 8s-3-5.5-8-5.5a7.028 7.028 0 0 0-2.79.588l.77.771A5.944 5.944 0 0 1 8 3.5c2.12 0 3.879 1.168 5.168 2.457A13.134 13.134 0 0 1 14.828 8c-.058.087-.122.183-.195.288-.335.48-.83 1.12-1.465 1.755-.165.165-.337.328-.517.486l.708.709z" />
<path d="M11.297 9.176a3.5 3.5 0 0 0-4.474-4.474l.823.823a2.5 2.5 0 0 1 2.829 2.829l.822.822zm-2.943 1.299.822.822a3.5 3.5 0 0 1-4.474-4.474l.823.823a2.5 2.5 0 0 0 2.829 2.829z" />
<path d="M3.35 5.47c-.18.16-.353.322-.518.487A13.134 13.134 0 0 0 1.172 8l.195.288c.335.48.83 1.12 1.465 1.755C4.121 11.332 5.881 12.5 8 12.5c.716 0 1.39-.133 2.02-.36l.77.772A7.029 7.029 0 0 1 8 13.5C3 13.5 0 8 0 8s.939-1.721 2.641-3.238l.708.709z" />
<path fill-rule="evenodd" d="M13.646 14.354l-12-12 .708-.708 12 12-.708.708z" />
</svg>
}
else
{
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M16 8s-3-5.5-8-5.5S0 8 0 8s3 5.5 8 5.5S16 8 16 8zM1.173 8a13.133 13.133 0 0 1 1.66-2.043C4.12 4.668 5.88 3.5 8 3.5c2.12 0 3.879 1.168 5.168 2.457A13.133 13.133 0 0 1 14.828 8c-.058.087-.122.183-.195.288-.335.48-.83 1.12-1.465 1.755C11.879 11.332 10.119 12.5 8 12.5c-2.12 0-3.879-1.168-5.168-2.457A13.134 13.134 0 0 1 1.172 8z" />
<path d="M8 5.5a2.5 2.5 0 1 0 0 5 2.5 2.5 0 0 0 0-5zM4.5 8a3.5 3.5 0 1 1 7 0 3.5 3.5 0 0 1-7 0z" />
</svg>
}
</button>
</div>
</div>
<button class="btn btn-primary w-100 py-2 fw-medium"
style="background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%); border: none;"
@onclick="SubmitAsync"
disabled="@(IsLoading || string.IsNullOrWhiteSpace(AccessCode))">
@if (IsLoading)
{
<span class="spinner-border spinner-border-sm me-2" role="status" aria-hidden="true"></span>
<span>Überprüfen …</span>
}
else
{
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-2" viewBox="0 0 16 16">
<path d="M8 1a2 2 0 0 1 2 2v4H6V3a2 2 0 0 1 2-2zm3 6V3a3 3 0 0 0-6 0v4a2 2 0 0 0-2 2v5a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2z" />
</svg>
<span>Dokument öffnen</span>
}
</button>
</div>
<div class="card-footer text-center text-muted py-3 border-0 bg-transparent" style="font-size: 0.78rem;">
Bei Problemen wenden Sie sich bitte an den Absender des Dokuments.
</div>
</div>
</div>
@code {
[Parameter] public string EnvelopeKey { get; set; } = string.Empty;
string AccessCode = string.Empty;
bool ShowCode;
bool IsLoading;
EnvelopeLoginResult? LoginResult;
async Task OnKeyDownAsync(Microsoft.AspNetCore.Components.Web.KeyboardEventArgs e)
{
if (e.Key == "Enter")
await SubmitAsync();
}
async Task SubmitAsync()
{
if (string.IsNullOrWhiteSpace(AccessCode) || IsLoading) return;
IsLoading = true;
LoginResult = null;
await InvokeAsync(StateHasChanged);
var result = await AuthService.LoginEnvelopeReceiverAsync(EnvelopeKey, AccessCode.Trim());
if (result == EnvelopeLoginResult.Success)
{
Navigation.NavigateTo($"/envelope/{Uri.EscapeDataString(EnvelopeKey)}", forceLoad: true);
return;
}
LoginResult = result;
IsLoading = false;
await InvokeAsync(StateHasChanged);
}
}

View File

@@ -0,0 +1,172 @@
@page "/sender/login"
@rendermode InteractiveWebAssembly
@using EnvelopeGenerator.Server.Client.Services
@inject AuthService AuthService
@inject NavigationManager Navigation
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<div class="login-page-wrapper d-flex align-items-center justify-content-center min-vh-100">
<div class="login-card card shadow border-0" style="max-width: 440px; width: 100%;">
<div class="card-header text-white text-center py-4 border-0" style="background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%); border-radius: calc(0.375rem - 1px) calc(0.375rem - 1px) 0 0;">
<div class="mb-2">
<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" fill="currentColor" viewBox="0 0 16 16">
<path d="M11 6a3 3 0 1 1-6 0 3 3 0 0 1 6 0z"/>
<path fill-rule="evenodd" d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8zm8-7a7 7 0 0 0-5.468 11.37C3.242 11.226 4.805 10 8 10s4.757 1.225 5.468 2.37A7 7 0 0 0 8 1z"/>
</svg>
</div>
<h5 class="mb-0 fw-semibold">Sender Anmeldung</h5>
<p class="mb-0 mt-1 opacity-75" style="font-size: 0.85rem;">Sicherer Zugang zum Sender-Dashboard</p>
</div>
<div class="card-body p-4">
<p class="text-muted mb-4" style="font-size: 0.875rem; line-height: 1.5;">
Bitte melden Sie sich mit Ihren Zugangsdaten an, um auf das Sender-Dashboard zuzugreifen.
</p>
@if (LoginResult == SenderLoginResult.InvalidCredentials) {
<div class="alert alert-danger d-flex align-items-start gap-2 py-2" role="alert">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="flex-shrink-0 mt-1" viewBox="0 0 16 16">
<path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM5.354 4.646a.5.5 0 1 0-.708.708L7.293 8l-2.647 2.646a.5.5 0 0 0 .708.708L8 8.707l2.646 2.647a.5.5 0 0 0 .708-.708L8.707 8l2.647-2.646a.5.5 0 0 0-.708-.708L8 7.293 5.354 4.646z"/>
</svg>
<div>
<strong>Ungültige Anmeldedaten.</strong><br />
<span style="font-size:0.85rem;">Benutzername oder Passwort ist falsch. Bitte versuchen Sie es erneut.</span>
</div>
</div>
} else if (LoginResult == SenderLoginResult.Error) {
<div class="alert alert-secondary d-flex align-items-start gap-2 py-2" role="alert">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="currentColor" class="flex-shrink-0 mt-1" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
<path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z"/>
</svg>
<div>
<strong>Serverfehler.</strong><br />
<span style="font-size:0.85rem;">Ein unerwarteter Fehler ist aufgetreten. Bitte versuchen Sie es später erneut.</span>
</div>
</div>
}
<div class="mb-3">
<label class="form-label fw-medium" for="login-username">
Benutzername
<span class="text-danger ms-1">*</span>
</label>
<div class="input-group">
<span class="input-group-text bg-light">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="#6c757d" viewBox="0 0 16 16">
<path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1H3Zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6Z"/>
</svg>
</span>
<input id="login-username"
type="text"
class="form-control @(LoginResult == SenderLoginResult.InvalidCredentials ? "is-invalid" : null)"
placeholder="Benutzername eingeben"
@bind="Username"
@bind:event="oninput"
@onkeydown="OnKeyDownAsync"
disabled="@IsLoading"
autocomplete="username" />
</div>
</div>
<div class="mb-4">
<label class="form-label fw-medium" for="login-password">
Passwort
<span class="text-danger ms-1">*</span>
</label>
<div class="input-group">
<span class="input-group-text bg-light border-end-0">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="#6c757d" viewBox="0 0 16 16">
<path d="M8 1a2 2 0 0 1 2 2v4H6V3a2 2 0 0 1 2-2zm3 6V3a3 3 0 0 0-6 0v4a2 2 0 0 0-2 2v5a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2z"/>
</svg>
</span>
<input id="login-password"
type="@(ShowPassword ? "text" : "password")"
class="form-control border-start-0 border-end-0 @(LoginResult == SenderLoginResult.InvalidCredentials ? "is-invalid" : null)"
placeholder="Passwort eingeben"
@bind="Password"
@bind:event="oninput"
@onkeydown="OnKeyDownAsync"
disabled="@IsLoading"
autocomplete="current-password" />
<button type="button"
class="btn btn-outline-secondary border-start-0"
style="border-left: none;"
tabindex="-1"
@onclick="() => ShowPassword = !ShowPassword">
@if (ShowPassword) {
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M13.359 11.238C15.06 9.72 16 8 16 8s-3-5.5-8-5.5a7.028 7.028 0 0 0-2.79.588l.77.771A5.944 5.944 0 0 1 8 3.5c2.12 0 3.879 1.168 5.168 2.457A13.134 13.134 0 0 1 14.828 8c-.058.087-.122.183-.195.288-.335.48-.83 1.12-1.465 1.755-.165.165-.337.328-.517.486l.708.709z"/>
<path d="M11.297 9.176a3.5 3.5 0 0 0-4.474-4.474l.823.823a2.5 2.5 0 0 1 2.829 2.829l.822.822zm-2.943 1.299.822.822a3.5 3.5 0 0 1-4.474-4.474l.823.823a2.5 2.5 0 0 0 2.829 2.829z"/>
<path d="M3.35 5.47c-.18.16-.353.322-.518.487A13.134 13.134 0 0 0 1.172 8l.195.288c.335.48.83 1.12 1.465 1.755C4.121 11.332 5.881 12.5 8 12.5c.716 0 1.39-.133 2.02-.36l.77.772A7.029 7.029 0 0 1 8 13.5C3 13.5 0 8 0 8s.939-1.721 2.641-3.238l.708.709z"/>
<path fill-rule="evenodd" d="M13.646 14.354l-12-12 .708-.708 12 12-.708.708z"/>
</svg>
} else {
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
<path d="M16 8s-3-5.5-8-5.5S0 8 0 8s3 5.5 8 5.5S16 8 16 8zM1.173 8a13.133 13.133 0 0 1 1.66-2.043C4.12 4.668 5.88 3.5 8 3.5c2.12 0 3.879 1.168 5.168 2.457A13.133 13.133 0 0 1 14.828 8c-.058.087-.122.183-.195.288-.335.48-.83 1.12-1.465 1.755C11.879 11.332 10.119 12.5 8 12.5c-2.12 0-3.879-1.168-5.168-2.457A13.134 13.134 0 0 1 1.172 8z"/>
<path d="M8 5.5a2.5 2.5 0 1 0 0 5 2.5 2.5 0 0 0 0-5zM4.5 8a3.5 3.5 0 1 1 7 0 3.5 3.5 0 0 1-7 0z"/>
</svg>
}
</button>
</div>
</div>
<button class="btn btn-primary w-100 py-2 fw-medium"
style="background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%); border: none;"
@onclick="SubmitAsync"
disabled="@(IsLoading || string.IsNullOrWhiteSpace(Username) || string.IsNullOrWhiteSpace(Password))">
@if (IsLoading) {
<span class="spinner-border spinner-border-sm me-2" role="status" aria-hidden="true"></span>
<span>Anmelden …</span>
} else {
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="me-2" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M10 3.5a.5.5 0 0 0-.5-.5h-8a.5.5 0 0 0-.5.5v9a.5.5 0 0 0 .5.5h8a.5.5 0 0 0 .5-.5v-2a.5.5 0 0 1 1 0v2A1.5 1.5 0 0 1 9.5 14h-8A1.5 1.5 0 0 1 0 12.5v-9A1.5 1.5 0 0 1 1.5 2h8A1.5 1.5 0 0 1 11 3.5v2a.5.5 0 0 1-1 0v-2z"/>
<path fill-rule="evenodd" d="M4.146 8.354a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5H14.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3z"/>
</svg>
<span>Anmelden</span>
}
</button>
</div>
<div class="card-footer text-center text-muted py-3 border-0 bg-transparent" style="font-size: 0.78rem;">
Bei Problemen wenden Sie sich bitte an den Administrator.
</div>
</div>
</div>
@code {
string Username = string.Empty;
string Password = string.Empty;
bool ShowPassword;
bool IsLoading;
SenderLoginResult? LoginResult;
async Task OnKeyDownAsync(Microsoft.AspNetCore.Components.Web.KeyboardEventArgs e) {
if (e.Key == "Enter")
await SubmitAsync();
}
async Task SubmitAsync() {
if (string.IsNullOrWhiteSpace(Username) || string.IsNullOrWhiteSpace(Password) || IsLoading) return;
IsLoading = true;
LoginResult = null;
await InvokeAsync(StateHasChanged);
var result = await AuthService.LoginSenderAsync(Username.Trim(), Password.Trim());
if (result == SenderLoginResult.Success) {
Navigation.NavigateTo("/sender", forceLoad: true);
return;
}
LoginResult = result;
IsLoading = false;
await InvokeAsync(StateHasChanged);
}
}

View File

@@ -0,0 +1,123 @@
<?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>
<metadata name="objectDataSource1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
<value>17, 17</value>
</metadata>
</root>

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using DevExpress.XtraReports.UI;
namespace EnvelopeGenerator.Server.Client.PredefinedReports {
public static class ReportsFactory
{
public static readonly Dictionary<string, Func<XtraReport>> Reports = new() {
["LargeDatasetReport"] = () => new PredefinedReports.Report()
};
public static XtraReport GetReport(string reportName) {
return Reports[reportName]();
}
}
}

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using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using EnvelopeGenerator.Server.Client.Services;
using EnvelopeGenerator.Server.Client.Options;
using DevExpress.Blazor.Reporting;
using DevExpress.XtraReports.Web.Extensions;
using DevExpress.DataAccess.Web;
using DevExpress.XtraReports.Services;
var builder = WebAssemblyHostBuilder.CreateDefault(args);
// Named HttpClient for API calls (both for services and DevExpress components)
builder.Services.AddHttpClient("EnvelopeGenerator.Server", client =>
{
client.BaseAddress = new Uri(builder.HostEnvironment.BaseAddress);
});
// Default HttpClient (DevExpress PdfViewer requires this)
builder.Services.AddScoped(sp => new HttpClient
{
BaseAddress = new Uri(builder.HostEnvironment.BaseAddress)
});
// Configuration Options
builder.Services.Configure<PdfViewerOptions>(opts =>
builder.Configuration.GetSection(PdfViewerOptions.SectionName).Bind(opts));
// Business Services
builder.Services.AddScoped<DocumentService>();
builder.Services.AddScoped<AuthService>();
builder.Services.AddScoped<AnnotationService>();
builder.Services.AddScoped<EnvelopeReceiverService>();
builder.Services.AddScoped<SignatureService>();
builder.Services.AddScoped<SignatureCacheService>();
builder.Services.AddSingleton<AppVersionService>();
builder.Services.AddScoped<EnvelopeService>();
// DevExpress WASM
builder.Services.AddDevExpressWebAssemblyBlazorPdfViewer();
builder.Services.AddDevExpressWebAssemblyBlazorReportViewer();
builder.Services.AddDevExpressBlazorReportingWebAssembly(configure => {
configure.UseDevelopmentMode();
});
// Reporting Services
builder.Services.AddScoped<IDataSourceWizardJsonConnectionStorage, CustomDataSourceWizardJsonDataConnectionStorage>();
builder.Services.AddScoped<IJsonDataConnectionProviderFactory, CustomJsonDataConnectionProviderFactory>();
builder.Services.AddScoped<IObjectDataSourceWizardTypeProvider, ObjectDataSourceWizardCustomTypeProvider>();
DevExpress.Utils.DeserializationSettings.RegisterTrustedClass(typeof(EnvelopeGenerator.Server.Client.Data.DataItemList));
DevExpress.Utils.DeserializationSettings.RegisterTrustedClass(typeof(EnvelopeGenerator.Server.Client.PredefinedReports.Report));
builder.Services.AddSingleton<InMemoryReportStorageWebExtension>();
builder.Services.AddSingleton<ReportStorageWebExtension>(sp => sp.GetRequiredService<InMemoryReportStorageWebExtension>());
builder.Services.AddScoped<IReportProviderAsync, CustomReportProvider>();
ReportStorageWebExtension.RegisterExtensionGlobal(new InMemoryReportStorageWebExtension());
var host = builder.Build();
await FontLoader.LoadFonts(host.Services.GetRequiredService<IHttpClientFactory>(), new List<string> { "opensans.ttf" });
await host.RunAsync();

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<Router AppAssembly="typeof(Program).Assembly">
<Found Context="routeData">
<RouteView RouteData="routeData" DefaultLayout="typeof(Layout.MainLayout)" />
<FocusOnNavigate RouteData="routeData" Selector="h1" />
</Found>
</Router>

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using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
using EnvelopeGenerator.Server.Client.Models;
namespace EnvelopeGenerator.Server.Client.Services;
/// <summary>
/// Retrieves annotation positions from the API.
/// Uses relative paths (/api/Annotation/{envelopeKey}).
/// </summary>
[Obsolete("Use SignatureService.")]
public class AnnotationService(IHttpClientFactory httpClientFactory)
{
private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
public async Task<IReadOnlyList<AnnotationDto>> GetAnnotationsAsync(string envelopeKey, CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var url = $"/api/Annotation/{Uri.EscapeDataString(envelopeKey)}";
var response = await http.GetAsync(url, cancel);
if (!response.IsSuccessStatusCode)
return [];
var result = await response.Content.ReadFromJsonAsync<List<AnnotationDto>>(_jsonOptions, cancel);
return result ?? [];
}
}

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namespace EnvelopeGenerator.Server.Client.Services;
/// <summary>
/// Provides application version for cache busting static assets.
/// Version is automatically incremented on each build via AssemblyVersion.
/// </summary>
public class AppVersionService
{
/// <summary>
/// Current application version (e.g., "1.0.0.0")
/// </summary>
public string Version { get; }
public AppVersionService()
{
// Get version from assembly metadata
Version = typeof(AppVersionService).Assembly.GetName().Version?.ToString() ?? "1.0.0.0";
}
/// <summary>
/// Generates versioned URL for static assets (cache busting)
/// </summary>
/// <param name="path">Asset path (e.g., "css/envelope-viewer.css")</param>
/// <returns>Versioned URL (e.g., "css/envelope-viewer.css?v=1.0.0.0")</returns>
public string GetVersionedUrl(string path) => $"{path}?v={Version}";
}

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using System.Net;
using System.Net.Http.Json;
namespace EnvelopeGenerator.Server.Client.Services;
public enum EnvelopeLoginResult { Success, InvalidCode, NotFound, Error }
public enum SenderLoginResult { Success, InvalidCredentials, Error }
public class AuthService(IHttpClientFactory httpClientFactory)
{
private HttpClient CreateDefaultClient() => httpClientFactory.CreateClient("EnvelopeGenerator.Server");
/// <summary>
/// Checks whether the current user holds a valid receiver token for the given envelope key.
/// Calls GET /api/auth/check/envelope/{envelopeKey}.
/// </summary>
public async Task<bool> CheckEnvelopeAccessAsync(string envelopeKey, CancellationToken cancel = default)
{
using var http = CreateDefaultClient();
var response = await http.GetAsync($"/api/auth/check/envelope/{Uri.EscapeDataString(envelopeKey)}", cancel);
return response.StatusCode == HttpStatusCode.OK;
}
/// <summary>
/// Checks whether the current user holds a valid receiver token for the given envelope key.
/// Calls GET /api/auth/check/envelope/{envelopeKey}.
/// </summary>
public async Task<bool> CheckSenderAccessAsync(CancellationToken cancel = default)
{
using var http = CreateDefaultClient();
var response = await http.GetAsync($"/api/auth/check", cancel);
return response.StatusCode == HttpStatusCode.OK;
}
/// <summary>
/// Submits the access code for the given envelope key.
/// Calls POST /api/Auth/envelope-receiver/{key} with multipart/form-data.
/// On success the API sets an authentication cookie automatically.
/// </summary>
public async Task<EnvelopeLoginResult> LoginEnvelopeReceiverAsync(string envelopeKey, string accessCode, CancellationToken cancel = default)
{
using var http = CreateDefaultClient();
var form = new MultipartFormDataContent
{
{ new StringContent(accessCode), "AccessCode" }
};
var response = await http.PostAsync(
$"/api/Auth/envelope-receiver/{Uri.EscapeDataString(envelopeKey)}",
form, cancel);
return response.StatusCode switch
{
HttpStatusCode.OK => EnvelopeLoginResult.Success,
HttpStatusCode.Unauthorized => EnvelopeLoginResult.InvalidCode,
HttpStatusCode.NotFound => EnvelopeLoginResult.NotFound,
_ => EnvelopeLoginResult.Error
};
}
/// <summary>
/// Removes the per-envelope receiver cookie for the given envelope key.
/// Calls POST /api/auth/logout/envelope/{envelopeKey}.
/// </summary>
public async Task<bool> LogoutEnvelopeReceiverAsync(string envelopeKey, CancellationToken cancel = default)
{
using var http = CreateDefaultClient();
var response = await http.PostAsync(
$"/api/auth/logout/envelope/{Uri.EscapeDataString(envelopeKey)}",
null, cancel);
return response.IsSuccessStatusCode;
}
/// <summary>
/// Removes the per-envelope receiver cookie for the given envelope key.
/// Calls POST /api/auth/logout/envelope/{envelopeKey}.
/// </summary>
public async Task<bool> LogoutSenderAsync(CancellationToken cancel = default)
{
using var http = CreateDefaultClient();
var response = await http.PostAsync(
$"/api/auth/logout",
null, cancel);
return response.IsSuccessStatusCode;
}
/// <summary>
/// Authenticates a sender user with username and password.
/// Calls POST /api/auth?cookie=true with JSON body.
/// On success the API sets an authentication cookie automatically.
/// </summary>
public async Task<SenderLoginResult> LoginSenderAsync(string username, string password, CancellationToken cancel = default)
{
using var http = CreateDefaultClient();
var requestBody = new { username, password };
var response = await http.PostAsJsonAsync(
$"/api/auth?cookie=true",
requestBody, cancel);
return response.StatusCode switch
{
HttpStatusCode.OK => SenderLoginResult.Success,
HttpStatusCode.Unauthorized => SenderLoginResult.InvalidCredentials,
_ => SenderLoginResult.Error
};
}
}

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using System.Globalization;
using Microsoft.JSInterop;
namespace EnvelopeGenerator.Server.Client.Services;
/// <summary>
/// Service for managing application culture/localization.
/// </summary>
public class CultureService
{
private readonly IJSRuntime _jsRuntime;
private const string CULTURE_KEY = "AppCulture";
public CultureService(IJSRuntime jsRuntime)
{
_jsRuntime = jsRuntime;
}
/// <summary>
/// Gets the list of supported cultures.
/// </summary>
public static CultureInfo[] SupportedCultures { get; } = new[]
{
new CultureInfo("de-DE"),
new CultureInfo("en-US"),
new CultureInfo("fr-FR")
};
/// <summary>
/// Sets the application culture and stores it in localStorage.
/// </summary>
public async Task SetCultureAsync(string culture)
{
if (!SupportedCultures.Any(c => c.Name == culture))
throw new ArgumentException($"Culture '{culture}' is not supported.", nameof(culture));
await _jsRuntime.InvokeVoidAsync("localStorage.setItem", CULTURE_KEY, culture);
}
/// <summary>
/// Gets the stored culture from localStorage.
/// </summary>
public async Task<string?> GetCultureAsync()
{
try
{
return await _jsRuntime.InvokeAsync<string?>("localStorage.getItem", CULTURE_KEY);
}
catch
{
return null;
}
}
/// <summary>
/// Initializes the culture from localStorage or browser settings.
/// </summary>
public async Task<CultureInfo> InitializeCultureAsync()
{
var storedCulture = await GetCultureAsync();
if (!string.IsNullOrEmpty(storedCulture) &&
SupportedCultures.Any(c => c.Name == storedCulture))
{
return new CultureInfo(storedCulture);
}
// Fallback to browser culture or default
var browserCulture = CultureInfo.CurrentCulture.Name;
var matchedCulture = SupportedCultures.FirstOrDefault(c => c.Name == browserCulture);
return matchedCulture ?? SupportedCultures[0]; // Default to German
}
}

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using DevExpress.DataAccess.Json;
using DevExpress.DataAccess.Web;
using DevExpress.DataAccess.Wizard.Services;
namespace EnvelopeGenerator.Server.Client.Services;
public class CustomDataSourceWizardJsonDataConnectionStorage : IDataSourceWizardJsonConnectionStorage
{
public static JsonDataConnection GetDefaultConnection() {
var uriJsonSource = new UriJsonSource() {
Uri = new Uri(@"https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json"),
};
return new JsonDataConnection(uriJsonSource) { StoreConnectionNameOnly = true, Name = "NWindProductsJson" };
}
public static List<JsonDataConnection> GetConnections() {
var connections = new List<JsonDataConnection> {
GetDefaultConnection()
};
return connections;
}
bool IJsonConnectionStorageService.CanSaveConnection => false;
bool IJsonConnectionStorageService.ContainsConnection(string connectionName) {
return GetConnections().Any(x => x.Name == connectionName);
}
IEnumerable<JsonDataConnection> IJsonConnectionStorageService.GetConnections() {
return GetConnections();
}
JsonDataConnection IJsonDataConnectionProviderService.GetJsonDataConnection(string name) {
var connection = GetConnections().FirstOrDefault(x => x.Name == name);
if(connection == null)
throw new InvalidOperationException();
return connection;
}
void IJsonConnectionStorageService.SaveConnection(string connectionName, JsonDataConnection connection, bool saveCredentials) { }
}

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using DevExpress.DataAccess.Json;
using DevExpress.DataAccess.Web;
namespace EnvelopeGenerator.Server.Client.Services;
public class CustomJsonDataConnectionProviderFactory : IJsonDataConnectionProviderFactory {
public IJsonDataConnectionProviderService Create() {
return new WebDocumentViewerJsonDataConnectionProvider(CustomDataSourceWizardJsonDataConnectionStorage.GetConnections());
}
}
public class WebDocumentViewerJsonDataConnectionProvider : IJsonDataConnectionProviderService
{
readonly List<JsonDataConnection> jsonDataConnections;
public WebDocumentViewerJsonDataConnectionProvider(List<JsonDataConnection> jsonDataConnections) {
this.jsonDataConnections = jsonDataConnections;
}
public JsonDataConnection GetJsonDataConnection(string name) {
var connection = jsonDataConnections.FirstOrDefault(x => x.Name == name);
if(connection == null)
throw new InvalidOperationException();
return connection;
}
}

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using DevExpress.XtraReports.UI;
using DevExpress.XtraReports.Services;
using EnvelopeGenerator.Server.Client.PredefinedReports;
namespace EnvelopeGenerator.Server.Client.Services;
public class CustomReportProvider : IReportProviderAsync {
private readonly InMemoryReportStorageWebExtension reportStorage;
public CustomReportProvider(InMemoryReportStorageWebExtension reportStorage) {
this.reportStorage = reportStorage;
}
public Task<XtraReport> GetReportAsync(string id, ReportProviderContext context) {
if(reportStorage.TryGetReport(id, out var savedReport))
return Task.FromResult(savedReport);
return Task.FromResult(ReportsFactory.GetReport(id));
}
}

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using System.Net.Http.Json;
using System.Text.Json;
using EnvelopeGenerator.Server.Client.Models;
namespace EnvelopeGenerator.Server.Client.Services;
public class DocReceiverElementService(IHttpClientFactory clientFactory)
{
private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
public async Task<IReadOnlyList<SignatureDto>> GetAsync(string envelopeKey, CancellationToken cancel = default)
{
var url = $"/api/DocReceiverElement/{Uri.EscapeDataString(envelopeKey)}";
var http = clientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await http.GetAsync(url, cancel);
if (!response.IsSuccessStatusCode)
throw new HttpRequestException($"Failed to retrieve signatures for envelope {envelopeKey}: {response.StatusCode} {response.ReasonPhrase}");
var result = await response.Content.ReadFromJsonAsync<List<SignatureDto>>(_jsonOptions, cancel);
return result ?? [];
}
}

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using System.Net;
using System.Net.Http;
namespace EnvelopeGenerator.Server.Client.Services;
public class DocumentService(IHttpClientFactory httpClientFactory)
{
/// <summary>
/// Fetches the PDF bytes for the given envelope key from the API.
/// Throws HttpRequestException on failure with appropriate status code.
/// </summary>
/// <exception cref="HttpRequestException">Thrown when the API request fails.</exception>
public async Task<byte[]?> GetDocumentAsync(string envelopeKey, CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await http.GetAsync($"/api/Document/{Uri.EscapeDataString(envelopeKey)}", cancel);
if (!response.IsSuccessStatusCode)
{
var statusCode = (int)response.StatusCode;
var reasonPhrase = response.ReasonPhrase ?? "Unknown error";
throw new HttpRequestException(
$"Failed to load document. Status: {statusCode} ({reasonPhrase})",
null,
response.StatusCode);
}
var bytes = await response.Content.ReadAsByteArrayAsync(cancel);
return bytes;
}
}

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using System.Net;
using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
using EnvelopeGenerator.Application.EnvelopeReceivers.Commands;
using EnvelopeGenerator.Server.Client.Models;
namespace EnvelopeGenerator.Server.Client.Services;
/// <summary>
/// Retrieves the <see cref="EnvelopeReceiverDto"/> for the authenticated receiver
/// from <c>GET /api/EnvelopeReceiver/{envelopeKey}</c>.
/// Also creates new envelopes via <c>POST /api/EnvelopeReceiver</c>.
/// </summary>
public class EnvelopeReceiverService(IHttpClientFactory httpClientFactory)
{
private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
/// <summary>
/// Fetches the envelope receiver data for the given envelope key from the API.
/// Throws HttpRequestException on failure with appropriate status code.
/// </summary>
/// <exception cref="HttpRequestException">Thrown when the API request fails.</exception>
public async Task<EnvelopeReceiverDto?> GetAsync(string envelopeKey, CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var url = $"/api/EnvelopeReceiver/{Uri.EscapeDataString(envelopeKey)}";
var response = await http.GetAsync(url, cancel);
if (!response.IsSuccessStatusCode)
{
var statusCode = (int)response.StatusCode;
var reasonPhrase = response.ReasonPhrase ?? "Unknown error";
throw new HttpRequestException(
$"Failed to load envelope receiver data. Status: {statusCode} ({reasonPhrase})",
null,
response.StatusCode);
}
return await response.Content.ReadFromJsonAsync<EnvelopeReceiverDto>(_jsonOptions, cancel);
}
/// <summary>
/// Creates a new envelope with document and receivers via <c>POST /api/EnvelopeReceiver</c>.
/// Requires sender authentication cookie to be present in the request.
/// </summary>
/// <exception cref="HttpRequestException">Thrown when the API request fails.</exception>
public async Task<CreateEnvelopeReceiverResponse?> CreateAsync(
CreateEnvelopeReceiverCommand request,
CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await http.PostAsJsonAsync("/api/EnvelopeReceiver", request, _jsonOptions, cancel);
if (!response.IsSuccessStatusCode)
{
var body = await response.Content.ReadAsStringAsync(cancel);
throw new HttpRequestException(
$"Fehler beim Erstellen des Umschlags. Status: {(int)response.StatusCode} {body}",
null,
response.StatusCode);
}
return await response.Content.ReadFromJsonAsync<CreateEnvelopeReceiverResponse>(_jsonOptions, cancel);
}
}

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using EnvelopeGenerator.Application.Common.Dto;
using Microsoft.AspNetCore.WebUtilities;
using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
namespace EnvelopeGenerator.Server.Client.Services;
/// <summary>
/// Retrieves <see cref="EnvelopeDto"/>s from the API.
/// </summary>
public class EnvelopeService(IHttpClientFactory clientFactory)
{
private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
/// <summary>
/// Fetches envelopes from the API with optional filters.
/// </summary>
/// <exception cref="HttpRequestException">Thrown when the API request fails.</exception>
public async Task<IEnumerable<EnvelopeDto>?> GetAsync(
int? id = null,
string? uuid = null,
bool? onlyActive = null,
bool? onlyCompleted = null,
CancellationToken cancel = default)
{
var baseUrl = $"/api/Envelope";
var queryParams = new Dictionary<string, string?>();
if (id.HasValue)
{
queryParams["Id"] = id.Value.ToString();
}
if (!string.IsNullOrEmpty(uuid))
{
queryParams["Uuid"] = uuid;
}
if (onlyActive.HasValue)
{
queryParams["OnlyActive"] = onlyActive.Value.ToString();
}
if (onlyCompleted.HasValue)
{
queryParams["OnlyCompleted"] = onlyCompleted.Value.ToString();
}
var url = QueryHelpers.AddQueryString(baseUrl, queryParams);
var httpClient = clientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await httpClient.GetAsync(url, cancel);
if (!response.IsSuccessStatusCode)
{
var statusCode = (int)response.StatusCode;
var reasonPhrase = response.ReasonPhrase ?? "Unknown error";
throw new HttpRequestException(
$"Failed to load envelopes. Status: {statusCode} ({reasonPhrase})",
null,
response.StatusCode);
}
return await response.Content.ReadFromJsonAsync<IEnumerable<EnvelopeDto>>(_jsonOptions, cancel);
}
}

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using DevExpress.Drawing;
namespace EnvelopeGenerator.Server.Client.Services;
public static class FontLoader
{
public static async Task LoadFonts(IHttpClientFactory httpClientFactory, List<string> fontNames)
{
using var httpClient = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
foreach (var fontName in fontNames)
{
var fontBytes = await httpClient.GetByteArrayAsync($"/fonts/{fontName}");
DXFontRepository.Instance.AddFont(fontBytes);
}
}
}

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using DevExpress.XtraReports.UI;
using DevExpress.XtraReports.Web.Extensions;
using EnvelopeGenerator.Server.Client.PredefinedReports;
namespace EnvelopeGenerator.Server.Client.Services;
public class InMemoryReportStorageWebExtension : ReportStorageWebExtension
{
private const string DefaultReportName = "LargeDatasetReport";
private static readonly Dictionary<string, byte[]> Reports = new(StringComparer.OrdinalIgnoreCase);
public override bool CanSetData(string url) => IsValidUrl(url);
public override byte[] GetData(string url)
{
url = NormalizeUrl(url);
if (Reports.TryGetValue(url, out var reportLayout))
return reportLayout;
if (ReportsFactory.Reports.TryGetValue(url, out var reportFactory))
return SaveReport(reportFactory());
throw new DevExpress.XtraReports.Web.ClientControls.FaultException($"Report '{url}' was not found.");
}
public override Dictionary<string, string> GetUrls()
{
var urls = ReportsFactory.Reports.Keys
.Concat(Reports.Keys)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToDictionary(name => name, name => name, StringComparer.OrdinalIgnoreCase);
return urls;
}
public override bool IsValidUrl(string url)
{
return !string.IsNullOrWhiteSpace(url)
&& url.IndexOfAny(Path.GetInvalidFileNameChars()) < 0;
}
public override void SetData(XtraReport report, string url)
{
url = NormalizeUrl(url);
Reports[url] = SaveReport(report);
}
public override string SetNewData(XtraReport report, string defaultUrl)
{
var url = NormalizeUrl(defaultUrl);
Reports[url] = SaveReport(report);
return url;
}
public bool TryGetReport(string url, out XtraReport report)
{
url = NormalizeUrl(url);
if (!Reports.ContainsKey(url))
{
report = null!;
return false;
}
using var stream = new MemoryStream(Reports[url]);
report = XtraReport.FromXmlStream(stream, true);
report.Name = url;
return true;
}
private static string NormalizeUrl(string url)
{
return string.IsNullOrWhiteSpace(url) ? DefaultReportName : url;
}
private static byte[] SaveReport(XtraReport report)
{
using var stream = new MemoryStream();
report.SaveLayoutToXml(stream);
return stream.ToArray();
}
}

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using DevExpress.DataAccess.Web;
namespace EnvelopeGenerator.Server.Client.Services;
public class ObjectDataSourceWizardCustomTypeProvider : IObjectDataSourceWizardTypeProvider {
public IEnumerable<Type> GetAvailableTypes(string context) {
return new[] { typeof(Data.DataItemList) };
}
}

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using System.Net.Http;
using System.Net.Http.Json;
using EnvelopeGenerator.Server.Client.Models;
namespace EnvelopeGenerator.Server.Client.Services;
/// <summary>
/// Client service for managing cached signatures via API.
/// </summary>
public class SignatureCacheService(IHttpClientFactory httpClientFactory)
{
public async Task SaveSignatureAsync(
string envelopeKey,
SignatureCaptureDto signature,
CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await http.PostAsJsonAsync(
$"/api/Cache/SignatureCapture/{Uri.EscapeDataString(envelopeKey)}",
signature,
cancel);
if (!response.IsSuccessStatusCode)
{
var error = await response.Content.ReadAsStringAsync(cancel);
throw new HttpRequestException($"Failed to cache signature: {response.StatusCode} - {error}");
}
}
public async Task<SignatureCaptureDto?> GetSignatureAsync(
string envelopeKey,
CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await http.GetAsync(
$"/api/Cache/SignatureCapture/{Uri.EscapeDataString(envelopeKey)}",
cancel);
if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
return null;
if (!response.IsSuccessStatusCode)
{
var error = await response.Content.ReadAsStringAsync(cancel);
throw new HttpRequestException($"Failed to retrieve signature: {response.StatusCode} - {error}");
}
return await response.Content.ReadFromJsonAsync<SignatureCaptureDto>(cancellationToken: cancel);
}
public async Task DeleteSignatureAsync(
string envelopeKey,
CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var response = await http.DeleteAsync(
$"/api/Cache/SignatureCapture/{Uri.EscapeDataString(envelopeKey)}",
cancel);
if (!response.IsSuccessStatusCode)
{
var error = await response.Content.ReadAsStringAsync(cancel);
throw new HttpRequestException($"Failed to delete signature: {response.StatusCode} - {error}");
}
}
}

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using System.Net.Http;
using System.Net.Http.Json;
using System.Text.Json;
using EnvelopeGenerator.Server.Client.Models;
namespace EnvelopeGenerator.Server.Client.Services;
public class SignatureService(IHttpClientFactory httpClientFactory)
{
private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
public async Task<IReadOnlyList<SignatureDto>> GetAsync(string envelopeKey, CancellationToken cancel = default)
{
using var http = httpClientFactory.CreateClient("EnvelopeGenerator.Server");
var url = $"/api/Signature/{Uri.EscapeDataString(envelopeKey)}";
var response = await http.GetAsync(url, cancel);
if (!response.IsSuccessStatusCode)
throw new HttpRequestException($"Failed to retrieve signatures for envelope {envelopeKey}: {response.StatusCode} {response.ReasonPhrase}");
var result = await response.Content.ReadFromJsonAsync<List<SignatureDto>>(_jsonOptions, cancel);
return result ?? [];
}
}

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@using System.Net.Http
@using System.Net.Http.Json
@using Microsoft.AspNetCore.Components.Forms
@using Microsoft.AspNetCore.Components.Routing
@using Microsoft.AspNetCore.Components.Web
@using static Microsoft.AspNetCore.Components.Web.RenderMode
@using Microsoft.AspNetCore.Components.Web.Virtualization
@using Microsoft.AspNetCore.Components.WebAssembly.Http
@using Microsoft.JSInterop
@using EnvelopeGenerator.Server.Client
@using EnvelopeGenerator.Server.Client.Services
@using EnvelopeGenerator.Server.Client.Models
@using EnvelopeGenerator.Server.Client.Options
@using DevExpress.Blazor
@using DevExpress.Blazor.PdfViewer
@using DevExpress.Blazor.Reporting

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namespace EnvelopeGenerator.Server;
/// <summary>
/// Authentication scheme names for envelope generator.
/// </summary>
public static class AuthScheme
{
/// <summary>
/// Scheme name used for per-envelope receiver JWT authentication.
/// </summary>
public const string Receiver = "EnvelopeGenerator.Server.ReceiverJWT";
/// <summary>
/// Scheme name used for per-envelope sender JWT authentication.
/// </summary>
public const string Sender = "EnvelopeGenerator.Server.SenderJWT";
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<base href="/" />
<link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
<link rel="stylesheet" href="css/app.css" />
<link rel="stylesheet" href="css/envelope-viewer.css" />
<link rel="stylesheet" href="EnvelopeGenerator.Server.styles.css" />
<HeadOutlet />
</head>
<body>
<Routes />
<script src="_content/DevExpress.Blazor.Resources/js/preload-script.js"></script>
<script src="js/typed.umd.js"></script>
<script src="js/receiver-signature.js?v=9"></script>
<script src="_framework/blazor.web.js"></script>
</body>
</html>

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@page "/Error"
@using System.Diagnostics
<PageTitle>Error</PageTitle>
<h1 class="text-danger">Error.</h1>
<h2 class="text-danger">An error occurred while processing your request.</h2>
@if (ShowRequestId)
{
<p>
<strong>Request ID:</strong> <code>@RequestId</code>
</p>
}
<h3>Development Mode</h3>
<p>
Swapping to <strong>Development</strong> environment will display more detailed information about the error that occurred.
</p>
<p>
<strong>The Development environment shouldn't be enabled for deployed applications.</strong>
It can result in displaying sensitive information from exceptions to end users.
For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
and restarting the app.
</p>
@code{
[CascadingParameter]
private HttpContext? HttpContext { get; set; }
private string? RequestId { get; set; }
private bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
protected override void OnInitialized() =>
RequestId = Activity.Current?.Id ?? HttpContext?.TraceIdentifier;
}

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@page "/envelope/{EnvelopeKey}"
@rendermode InteractiveServer
@using DevExpress.Blazor.Reporting
@using DevExpress.XtraReports.UI
@using EnvelopeGenerator.Server.Client.Models
@using EnvelopeGenerator.Server.Client.Models.Constants
@using EnvelopeGenerator.Server.Client.Services
@using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver
@using Microsoft.JSInterop
@using DevExpress.Blazor
@using System.Drawing
@using System.Security.Claims
@using Microsoft.Extensions.Caching.Memory
@inject NavigationManager Navigation
@inject IJSRuntime JSRuntime
@inject EnvelopeGenerator.Server.Client.Services.AuthService AuthService
@inject EnvelopeGenerator.Server.Services.EnvelopeReceiverAuthorizationService ReceiverAuthorizationService
@inject EnvelopeGenerator.Server.Services.EnvelopeReceiverPageDataService PageDataService
@inject AppVersionService AppVersion
@inject IMemoryCache MemoryCache
@inject ILogger<ReceiverPage> Logger
@implements IDisposable
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<link href="_content/DevExpress.Blazor.Reporting.Viewer/css/dx-blazor-reporting-components.bs5.css" rel="stylesheet" />
<link href="@AppVersion.GetVersionedUrl("css/envelope-viewer.css")" rel="stylesheet" />
<script src="@AppVersion.GetVersionedUrl("js/receiver-signature.js")"></script>
<div class="envelope-viewer-layout">
<div class="envelope-action-bar">
<div class="envelope-action-bar__inner" style="flex-direction: column; align-items: stretch; padding: 0.35rem 1.5rem; gap: 0.35rem;">
@* Row 1: Title + Sender + Badges *@
<div style="display: flex; align-items: center; justify-content: space-between; gap: 1rem;">
@* Left: Title + Sender *@
<div style="flex: 0 1 auto; min-width: 0; display: flex; align-items: center; gap: 0.75rem;">
@if (_envelopeReceiver is not null)
{
<div style="font-size: 0.9rem; font-weight: 600; color: #1f2937; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;">
@(_envelopeReceiver.Envelope?.Title ?? "Dokument")
</div>
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.FullName) || !string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.Email))
{
<span style="font-size: 0.7rem; color: #6b7280; white-space: nowrap;">
Von
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.FullName))
{
<span style="font-weight: 500; color: #374151;">@_envelopeReceiver.Envelope.User.FullName</span>
}
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.Email))
{
<span>&lt;@_envelopeReceiver.Envelope.User.Email&gt;</span>
}
@if (_envelopeReceiver.Envelope?.AddedWhen != null)
{
<span>&nbsp;·&nbsp;@_envelopeReceiver.Envelope.AddedWhen.ToString("dd.MM.yyyy")</span>
}
</span>
}
}
else
{
<div style="font-size: 0.9rem; font-weight: 600; color: #1f2937;">Dokumentenansicht</div>
}
</div>
@* Right: Badges + Signature status *@
<div class="d-flex align-items-center" style="gap: 0.75rem; flex: 0 0 auto;">
@if (_envelopeReceiver is not null)
{
<div class="d-flex flex-wrap align-items-center" style="gap: 0.3rem; font-size: 0.7rem;">
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Name))
{
<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: #f3f4f6; border-radius: 0.25rem; color: #374151; white-space: nowrap;">
<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M8 8a3 3 0 1 0 0-6 3 3 0 0 0 0 6Zm2-3a2 2 0 1 1-4 0 2 2 0 0 1 4 0Zm4 8c0 1-1 1-1 1H3s-1 0-1-1 1-4 6-4 6 3 6 4Z" />
</svg>
@_envelopeReceiver.Name
</span>
}
@if (_signatures.Count > 0)
{
<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: @(_capturedSignature is not null ? "#d1fae5" : "#ede9fe"); border-radius: 0.25rem; color: @(_capturedSignature is not null ? "#065f46" : "#6d28d9"); font-weight: 500; white-space: nowrap;">
<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z" />
</svg>
@_signatures.Count Unterschrift@(_signatures.Count != 1 ? "en" : "")
@if (_capturedSignature is not null)
{
<span class="ms-1">✓</span>
}
</span>
}
@if (_envelopeReceiver.Envelope?.UseAccessCode ?? false)
{
<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: #fef3c7; border-radius: 0.25rem; color: #92400e; font-weight: 500; white-space: nowrap;">
<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M8 1a2 2 0 0 1 2 2v4H6V3a2 2 0 0 1 2-2zm3 6V3a3 3 0 0 0-6 0v4a2 2 0 0 0-2 2v5a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V9a2 2 0 0 0-2-2z" />
</svg>
Code
</span>
}
@if (_envelopeReceiver.Envelope?.TFAEnabled ?? false)
{
<span style="display: inline-flex; align-items: center; padding: 0.125rem 0.4rem; background: #dbeafe; border-radius: 0.25rem; color: #1e40af; font-weight: 500; white-space: nowrap;">
<svg xmlns="http://www.w3.org/2000/svg" width="9" height="9" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M5.338 1.59a61.44 61.44 0 0 0-2.837.856.481.481 0 0 0-.328.39c-.554 4.157.726 7.19 2.253 9.188a10.725 10.725 0 0 0 2.287 2.233c.346.244.652.42.893.533.12.057.218.095.293.118a.55.55 0 0 0 .101.025.615.615 0 0 0 .1-.025c.076-.023.174-.061.294-.118.24-.113.547-.29.893-.533a10.726 10.726 0 0 0 2.287-2.233c1.527-1.997 2.807-5.031 2.253-9.188a.48.48 0 0 0-.328-.39c-.651-.213-1.75-.56-2.837-.855C9.552 1.29 8.531 1.067 8 1.067c-.53 0-1.552.223-2.662.524zM5.072.56C6.157.265 7.31 0 8 0s1.843.265 2.928.56c1.11.3 2.229.655 2.887.87a1.54 1.54 0 0 1 1.044 1.262c.596 4.477-.787 7.795-2.465 9.99a11.775 11.775 0 0 1-2.517 2.453 7.159 7.159 0 0 1-1.048.625c-.28.132-.581.24-.829.24s-.548-.108-.829-.24a7.158 7.158 0 0 1-1.048-.625 11.777 11.777 0 0 1-2.517-2.453C1.928 10.487.545 7.169 1.141 2.692A1.54 1.54 0 0 1 2.185 1.43 62.456 62.456 0 0 1 5.072.56z" />
<path d="M10.854 5.146a.5.5 0 0 1 0 .708l-3 3a.5.5 0 0 1-.708 0l-1.5-1.5a.5.5 0 1 1 .708-.708L7.5 7.793l2.646-2.647a.5.5 0 0 1 .708 0z" />
</svg>
2FA
</span>
}
</div>
}
@* Unterschreiben button — visible only when signature fields exist *@
@if (_signatures.Count > 0)
{
<button class="pdf-toolbar__btn pdf-toolbar__btn--signature-change pdf-toolbar__btn--signature-change-active"
@onclick="OpenSignaturePopup"
title="Unterschreiben"
style="flex-shrink: 0;">
<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
<path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z" />
</svg>
<span class="pdf-toolbar__btn-text">Unterschreiben</span>
</button>
}
</div>
</div>
@* Row 2: Messages *@
@if (_envelopeReceiver is not null && (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.Message) || !string.IsNullOrWhiteSpace(_envelopeReceiver.PrivateMessage)))
{
<div style="display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.7rem; padding-top: 0.15rem; border-top: 1px solid #e5e7eb;">
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.Message))
{
<div style="flex: 1; min-width: 0; padding: 0.2rem 0.4rem; background: #f9fafb; border-radius: 0.25rem; border-left: 2px solid #9ca3af; display: flex; align-items: flex-start; gap: 0.25rem;">
<span style="font-weight: 500; color: #374151; flex-shrink: 0;">📧</span>
<span style="color: #6b7280; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;">@_envelopeReceiver.Envelope.Message</span>
</div>
}
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.PrivateMessage))
{
<div style="flex: 1; min-width: 0; padding: 0.2rem 0.4rem; background: #fef3c7; border-radius: 0.25rem; border-left: 2px solid #f59e0b; display: flex; align-items: flex-start; gap: 0.25rem;">
<span style="font-weight: 500; color: #92400e; flex-shrink: 0;">🔒</span>
<span style="color: #92400e; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;">@_envelopeReceiver.PrivateMessage</span>
</div>
}
</div>
}
</div>
</div>
<div class="envelope-content" style="padding: 0; overflow: hidden;">
@if (_isLoading)
{
<div class="d-flex justify-content-center align-items-center h-100">
<div class="text-center">
<div class="spinner-border text-white mb-3" style="width: 3.5rem; height: 3.5rem;" role="status">
<span class="visually-hidden">Lädt...</span>
</div>
<p class="text-white fw-semibold">Dokument wird geladen...</p>
</div>
</div>
}
else if (_errorMessage is not null)
{
<div class="error-container">
<div class="alert alert-danger shadow-lg">
<div class="d-flex align-items-start">
<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" fill="currentColor" class="me-3 flex-shrink-0" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z" />
<path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z" />
</svg>
<div>
<h5 class="mb-2">Fehler beim Laden des Dokuments</h5>
<p class="mb-0">@_errorMessage</p>
</div>
</div>
</div>
</div>
}
else if (_report is not null)
{
<DxReportViewer @ref="_reportViewer"
Report="_report"
RootCssClasses="w-100 h-100" />
}
</div>
</div>
@* Signature Popup *@
<DxPopup @bind-Visible="_signaturePopupVisible"
HeaderText="Unterschrift erstellen"
Width="620px"
MaxWidth="95vw"
ShowFooter="true"
CloseOnOutsideClick="false"
ShowCloseButton="false"
CloseOnEscape="false"
Shown="OnPopupShownAsync">
<BodyContentTemplate>
<ul class="nav nav-tabs mb-3" style="border-bottom: 2px solid #e9ecef;">
<li class="nav-item">
<button type="button"
class="nav-link @(_activeSignatureTab == SignatureTabDraw ? "active" : "")"
style="@(_activeSignatureTab == SignatureTabDraw ? "border-bottom: 3px solid #4F46E5; color: #4F46E5; font-weight: 600;" : "color: #6c757d;")"
@onclick="() => SetSignatureTabAsync(SignatureTabDraw)">
Zeichnen
</button>
</li>
<li class="nav-item">
<button type="button"
class="nav-link @(_activeSignatureTab == SignatureTabText ? "active" : "")"
style="@(_activeSignatureTab == SignatureTabText ? "border-bottom: 3px solid #4F46E5; color: #4F46E5; font-weight: 600;" : "color: #6c757d;")"
@onclick="() => SetSignatureTabAsync(SignatureTabText)">
Text
</button>
</li>
<li class="nav-item">
<button type="button"
class="nav-link @(_activeSignatureTab == SignatureTabImage ? "active" : "")"
style="@(_activeSignatureTab == SignatureTabImage ? "border-bottom: 3px solid #4F46E5; color: #4F46E5; font-weight: 600;" : "color: #6c757d;")"
@onclick="() => SetSignatureTabAsync(SignatureTabImage)">
Bild
</button>
</li>
</ul>
@if (_activeSignatureTab == SignatureTabDraw)
{
<p style="color: #6c757d; font-size: 0.875rem; margin-bottom: 0.75rem;">Bitte unterschreiben Sie im folgenden Feld.</p>
<canvas id="rp-signature-pad"
width="560"
height="180"
style="border: 2px solid #e9ecef; border-radius: 8px; background: white; width: 100%; max-width: 560px; touch-action: none; box-shadow: 0 1px 3px rgba(0,0,0,0.1);"></canvas>
}
else if (_activeSignatureTab == SignatureTabText)
{
<p style="color: #6c757d; font-size: 0.875rem; margin-bottom: 0.75rem;">Geben Sie Ihre Unterschrift als Text ein und wählen Sie eine Schriftart.</p>
<div class="row g-3 mb-3">
<div class="col-12 col-md-7">
<input class="form-control"
placeholder="Ihre Unterschrift"
value="@_typedSignatureText"
@oninput="OnTypedSignatureChanged"
style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
</div>
<div class="col-12 col-md-5">
<select class="form-select"
value="@_typedSignatureFont"
@onchange="OnTypedSignatureFontChanged"
style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;">
@foreach (var font in TypedSignatureFonts)
{
<option value="@font.Value" style="font-family: @font.Value">@font.Text</option>
}
</select>
</div>
</div>
<canvas id="rp-typed-signature-pad"
width="560"
height="180"
style="border: 2px solid #e9ecef; border-radius: 8px; background: white; width: 100%; max-width: 560px; box-shadow: 0 1px 3px rgba(0,0,0,0.1);"></canvas>
}
else
{
<p style="color: #6c757d; font-size: 0.875rem; margin-bottom: 0.75rem;">Laden Sie ein Bild Ihrer Unterschrift hoch.</p>
<input id="rp-signature-image-input"
class="form-control mb-3"
type="file"
accept="image/png,image/jpeg,image/webp"
style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
<canvas id="rp-image-signature-pad"
width="560"
height="180"
style="border: 2px solid #e9ecef; border-radius: 8px; background: white; width: 100%; max-width: 560px; box-shadow: 0 1px 3px rgba(0,0,0,0.1);"></canvas>
}
<div style="border-top: 2px solid #e9ecef; margin-top: 1.5rem; padding-top: 1.5rem;">
<div class="row g-3">
<div class="col-12 col-md-6">
<label class="form-label" for="rp-signer-name" style="font-size: 0.875rem; font-weight: 500; color: #495057;">
Vor- und Nachname <span style="color: #dc3545;">*</span>
</label>
<input id="rp-signer-name"
class="form-control"
value="@_signerFullName"
@oninput="args => _signerFullName = args.Value?.ToString() ?? string.Empty"
style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
</div>
<div class="col-12 col-md-6">
<label class="form-label" for="rp-signer-position" style="font-size: 0.875rem; font-weight: 500; color: #495057;">
Position <span style="color: #6c757d; font-weight: 400;">(optional)</span>
</label>
<input id="rp-signer-position"
class="form-control"
value="@_signerPosition"
@oninput="args => _signerPosition = args.Value?.ToString() ?? string.Empty"
style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
</div>
<div class="col-12 col-md-6">
<label class="form-label" for="rp-signature-place" style="font-size: 0.875rem; font-weight: 500; color: #495057;">
Ort <span style="color: #dc3545;">*</span>
</label>
<input id="rp-signature-place"
class="form-control"
value="@_signaturePlace"
@oninput="args => _signaturePlace = args.Value?.ToString() ?? string.Empty"
style="border: 2px solid #e9ecef; border-radius: 6px; padding: 0.625rem;" />
</div>
</div>
</div>
@if (!string.IsNullOrWhiteSpace(_popupValidationMessage))
{
<div style="background: #fee; border-left: 4px solid #dc3545; padding: 0.75rem 1rem; margin-top: 1rem; border-radius: 4px;">
<span style="color: #dc3545; font-size: 0.875rem; font-weight: 500;">@_popupValidationMessage</span>
</div>
}
</BodyContentTemplate>
<FooterContentTemplate>
<div class="d-flex gap-2 justify-content-between w-100" style="padding: 0.5rem 0;">
<button class="btn btn-outline-secondary"
@onclick="RenewSignatureAsync"
style="border-radius: 6px; padding: 0.625rem 1.25rem; font-weight: 500;">
<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z" />
<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z" />
</svg>
Erneuern
</button>
<button class="btn btn-primary"
@onclick="SaveSignatureAsync"
style="background: linear-gradient(135deg, #4F46E5 0%, #4338CA 100%); border: none; border-radius: 6px; padding: 0.625rem 2rem; font-weight: 600; box-shadow: 0 2px 4px rgba(79, 70, 229, 0.3);">
<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="me-1" viewBox="0 0 16 16">
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z" />
</svg>
Speichern
</button>
</div>
</FooterContentTemplate>
</DxPopup>
@code {
// ----- Constants -----
const string SignatureTabDraw = "draw";
const string SignatureTabText = "text";
const string SignatureTabImage = "image";
const string DrawCanvasId = "rp-signature-pad";
const string TypedCanvasId = "rp-typed-signature-pad";
const string ImageInputId = "rp-signature-image-input";
const string ImageCanvasId = "rp-image-signature-pad";
readonly (string Text, string Value)[] TypedSignatureFonts =
[
("Brush Script", "'Brush Script MT', cursive"),
("Segoe Script", "'Segoe Script', cursive"),
("Lucida Handwriting", "'Lucida Handwriting', cursive"),
("Comic Sans", "'Comic Sans MS', cursive"),
("Cursive", "cursive"),
];
// ----- Parameters -----
[Parameter] public string? EnvelopeKey { get; set; }
// ----- Page state -----
bool _isLoading = true;
string? _errorMessage;
byte[]? _pdfBytes;
IReadOnlyList<SignatureDto> _signatures = [];
EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver.EnvelopeReceiverDto? _envelopeReceiver;
ClaimsPrincipal? _receiverUser;
// ----- Report viewer -----
DxReportViewer? _reportViewer;
XtraReport? _report;
// ----- Signature popup state -----
SignatureCaptureDto? _capturedSignature;
bool _signaturePopupVisible = false;
string? _popupValidationMessage;
string _activeSignatureTab = SignatureTabDraw;
string _typedSignatureText = string.Empty;
string _typedSignatureFont = "'Brush Script MT', cursive";
string _signerFullName = string.Empty;
string _signerPosition = string.Empty;
string _signaturePlace = string.Empty;
// ----- Lifecycle -----
protected override async Task OnInitializedAsync()
{
if (string.IsNullOrWhiteSpace(EnvelopeKey))
{
_errorMessage = "Envelope-Schlüssel fehlt.";
_isLoading = false;
return;
}
// Authorization — same pattern as EnvelopeReceiverPage
_receiverUser = await ReceiverAuthorizationService.AuthorizeAsync(EnvelopeKey);
if (_receiverUser is null)
{
Navigation.NavigateTo($"/envelope/login/{Uri.EscapeDataString(EnvelopeKey)}");
return;
}
try
{
// Load PDF bytes via MediatR (uses authenticated user's claims)
_pdfBytes = await PageDataService.GetDocumentAsync(_receiverUser);
if (_pdfBytes is not { Length: > 0 })
{
_errorMessage = "Dokument konnte nicht geladen werden: Keine Daten empfangen.";
_isLoading = false;
return;
}
// Load signature fields for this receiver
_signatures = await PageDataService.GetSignaturesAsync(_receiverUser);
// Load envelope receiver metadata
_envelopeReceiver = await PageDataService.GetEnvelopeReceiverAsync(EnvelopeKey);
if (_envelopeReceiver is null)
Logger.LogWarning("Envelope receiver data is null for {EnvelopeKey}", EnvelopeKey);
// Build initial report (no signature image yet)
_report = BuildReport(_pdfBytes, _signatures, capturedSignature: null);
// Try to restore cached signature
try
{
var cachedSignature = await PageDataService.GetCachedSignatureAsync(_receiverUser);
if (cachedSignature is not null)
{
_capturedSignature = cachedSignature;
_signerFullName = cachedSignature.FullName;
_signerPosition = cachedSignature.Position;
_signaturePlace = cachedSignature.Place;
_signaturePopupVisible = false;
// Rebuild with cached signature overlaid
_report = BuildReport(_pdfBytes, _signatures, _capturedSignature);
}
else
{
_activeSignatureTab = SignatureTabDraw;
_signaturePopupVisible = false;
_popupValidationMessage = null;
}
}
catch (Exception ex)
{
Logger.LogWarning(ex, "Failed to load cached signature for {EnvelopeKey}", EnvelopeKey);
_activeSignatureTab = SignatureTabDraw;
_signaturePopupVisible = false;
_popupValidationMessage = null;
}
}
catch (Exception ex)
{
_errorMessage = $"Fehler beim Laden des Dokuments: {ex.Message}";
Logger.LogError(ex, "Unexpected error for {EnvelopeKey}", EnvelopeKey);
}
_isLoading = false;
await InvokeAsync(StateHasChanged);
}
// ----- Report builder -----
/// <summary>
/// Builds an XtraReport wrapping the PDF bytes.
/// If a signature is captured and there are signature fields, the signature image is
/// first burned into the PDF via DevExpress PdfDocumentProcessor, then the modified
/// PDF is handed to XRPdfContent with GenerateOwnPages = true so that all pages appear.
/// </summary>
static XtraReport BuildReport(
byte[] pdfBytes,
IReadOnlyList<SignatureDto> signatures,
SignatureCaptureDto? capturedSignature)
{
// Always draw placeholder boxes on signature fields so the user knows where to sign.
// When a captured signature exists, it will be applied in the Signed page instead.
byte[] sourcePdf = pdfBytes;
if (signatures.Count > 0)
{
sourcePdf = DrawSignaturePlaceholders(pdfBytes, signatures);
}
var report = new XtraReport
{
PaperKind = DevExpress.Drawing.Printing.DXPaperKind.A4,
Landscape = false,
Margins = new System.Drawing.Printing.Margins(0, 0, 0, 0),
};
var detail = new DetailBand { HeightF = 0f };
report.Bands.Add(detail);
detail.Controls.Add(new XRPdfContent
{
Source = sourcePdf,
GenerateOwnPages = true,
});
return report;
}
/// <summary>
/// Uses PdfSharp to draw a visible signature placeholder box on every signature field.
/// sig.X / sig.Y come from GetSignaturesAsync(UnitOfLength.Point) → already in PDF points.
/// PdfSharp coordinate origin: bottom-left, Y up. Conversion: pdfY = pageH - sigY - sigH
/// Signature field size (fixed): 1.77" × 1.96" = 127.44pt × 141.12pt
/// </summary>
static byte[] DrawSignaturePlaceholders(
byte[] pdfBytes,
IReadOnlyList<SignatureDto> signatures)
{
if (signatures.Count == 0) return pdfBytes;
using var inputMs = new System.IO.MemoryStream(pdfBytes);
using var outputMs = new System.IO.MemoryStream();
var document = PdfSharp.Pdf.IO.PdfReader.Open(
inputMs,
PdfSharp.Pdf.IO.PdfDocumentOpenMode.Modify);
const double sigW = 1.77 * 72; // 127.44 pt
const double sigH = 1.96 * 72; // 141.12 pt
foreach (var sig in signatures)
{
int pageIndex = sig.Page - 1;
if (pageIndex < 0 || pageIndex >= document.PageCount) continue;
var page = document.Pages[pageIndex];
// PdfSharp XGraphics uses top-left origin, Y down — same as sig.X/sig.Y
// No coordinate conversion needed.
using var gfx = PdfSharp.Drawing.XGraphics.FromPdfPage(page);
var rect = new PdfSharp.Drawing.XRect(sig.X, sig.Y, sigW, sigH);
// Filled semi-transparent rectangle
var fillBrush = new PdfSharp.Drawing.XSolidBrush(
PdfSharp.Drawing.XColor.FromArgb(40, 60, 80, 160));
var borderPen = new PdfSharp.Drawing.XPen(
PdfSharp.Drawing.XColor.FromArgb(200, 60, 80, 200), 1.5);
gfx.DrawRectangle(fillBrush, rect);
gfx.DrawRectangle(borderPen, rect);
// "UNTERSCHRIFT" label centred in the box
var font = new PdfSharp.Drawing.XFont("Arial", 9,
PdfSharp.Drawing.XFontStyleEx.Bold);
var textBrush = new PdfSharp.Drawing.XSolidBrush(
PdfSharp.Drawing.XColor.FromArgb(200, 40, 60, 140));
var textFmt = new PdfSharp.Drawing.XStringFormat
{
Alignment = PdfSharp.Drawing.XStringAlignment.Center,
LineAlignment = PdfSharp.Drawing.XLineAlignment.Center,
};
gfx.DrawString("UNTERSCHRIFT", font, textBrush, rect, textFmt);
}
document.Save(outputMs);
return outputMs.ToArray();
}
/// <summary>Converts a base64 data URL (data:image/...;base64,...) to raw bytes.</summary>
static byte[]? DataUrlToBytes(string dataUrl)
{
try
{
var commaIndex = dataUrl.IndexOf(',');
if (commaIndex < 0) return null;
return Convert.FromBase64String(dataUrl[(commaIndex + 1)..]);
}
catch
{
return null;
}
}
// ----- Signature popup handlers -----
void OpenSignaturePopup()
{
_activeSignatureTab = SignatureTabDraw;
_signaturePopupVisible = true;
_popupValidationMessage = null;
}
async Task OnPopupShownAsync()
{
await InitializeActiveSignatureTabAsync();
}
async Task SetSignatureTabAsync(string tab)
{
_activeSignatureTab = tab;
_popupValidationMessage = null;
await InvokeAsync(StateHasChanged);
await Task.Delay(50);
await InitializeActiveSignatureTabAsync();
}
async Task InitializeActiveSignatureTabAsync()
{
if (_activeSignatureTab == SignatureTabDraw)
await JSRuntime.InvokeVoidAsync("receiverSignature.initialize", DrawCanvasId);
else if (_activeSignatureTab == SignatureTabText)
{
await JSRuntime.InvokeVoidAsync("receiverSignature.initializeTyped", TypedCanvasId);
await RenderTypedSignatureAsync();
}
else
await JSRuntime.InvokeVoidAsync("receiverSignature.initializeImage", ImageInputId, ImageCanvasId);
}
async Task RenewSignatureAsync()
{
_popupValidationMessage = null;
if (_activeSignatureTab == SignatureTabDraw)
await JSRuntime.InvokeVoidAsync("receiverSignature.clear", DrawCanvasId);
else if (_activeSignatureTab == SignatureTabText)
{
_typedSignatureText = string.Empty;
await JSRuntime.InvokeVoidAsync("receiverSignature.clearTyped", TypedCanvasId);
}
else
await JSRuntime.InvokeVoidAsync("receiverSignature.clearImage", ImageInputId, ImageCanvasId);
}
async Task OnTypedSignatureChanged(Microsoft.AspNetCore.Components.ChangeEventArgs args)
{
_typedSignatureText = args.Value?.ToString() ?? string.Empty;
await RenderTypedSignatureAsync();
}
async Task OnTypedSignatureFontChanged(Microsoft.AspNetCore.Components.ChangeEventArgs args)
{
_typedSignatureFont = args.Value?.ToString() ?? _typedSignatureFont;
await RenderTypedSignatureAsync();
}
async Task RenderTypedSignatureAsync()
{
await JSRuntime.InvokeVoidAsync("receiverSignature.renderTypedSignature",
TypedCanvasId, _typedSignatureText, _typedSignatureFont);
}
async Task SaveSignatureAsync()
{
if (string.IsNullOrWhiteSpace(_signerFullName))
{
_popupValidationMessage = "Bitte geben Sie Vor- und Nachname ein.";
return;
}
if (string.IsNullOrWhiteSpace(_signaturePlace))
{
_popupValidationMessage = "Bitte geben Sie den Ort ein.";
return;
}
var signatureDataUrl = await GetActiveSignatureDataUrlAsync();
if (string.IsNullOrWhiteSpace(signatureDataUrl))
{
_popupValidationMessage = "Die Unterschrift ist erforderlich.";
return;
}
_popupValidationMessage = null;
_capturedSignature = new SignatureCaptureDto
{
DataUrl = signatureDataUrl,
FullName = _signerFullName.Trim(),
Position = _signerPosition.Trim(),
Place = _signaturePlace.Trim(),
};
_signaturePopupVisible = false;
// Store signature in IMemoryCache with a Guid key (1 minute TTL)
var sid = Guid.NewGuid().ToString("N");
MemoryCache.Set(
sid,
_capturedSignature,
TimeSpan.FromMinutes(1));
Logger.LogInformation(
"Signature cached with sid={Sid} for envelope {EnvelopeKey}", sid, EnvelopeKey);
// Null the report → DxReportViewer removed from DOM → no crash on dispose
_report = null;
await InvokeAsync(StateHasChanged);
await Task.Delay(50);
// Navigate — forceLoad:true for clean circuit teardown
Navigation.NavigateTo(
$"/envelope/{Uri.EscapeDataString(EnvelopeKey!)}/signed?sid={sid}",
forceLoad: true);
}
async Task<string?> GetActiveSignatureDataUrlAsync()
{
if (_activeSignatureTab == SignatureTabDraw)
return await JSRuntime.InvokeAsync<string?>("receiverSignature.getDataUrl", DrawCanvasId);
if (_activeSignatureTab == SignatureTabText)
{
await RenderTypedSignatureAsync();
return await JSRuntime.InvokeAsync<string?>("receiverSignature.getTypedDataUrl", TypedCanvasId);
}
return await JSRuntime.InvokeAsync<string?>("receiverSignature.getImageDataUrl", ImageCanvasId);
}
// ----- Disposal -----
public void Dispose()
{
_report?.Dispose();
}
}

View File

@@ -0,0 +1,396 @@
@page "/envelope/{EnvelopeKey}/signed"
@rendermode InteractiveServer
@using DevExpress.Blazor.Reporting
@using DevExpress.XtraReports.UI
@using EnvelopeGenerator.Server.Client.Models
@using EnvelopeGenerator.Server.Client.Services
@using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver
@using Microsoft.Extensions.Caching.Memory
@using System.Security.Claims
@inject NavigationManager Navigation
@inject IJSRuntime JSRuntime
@inject EnvelopeGenerator.Server.Client.Services.AuthService AuthService
@inject EnvelopeGenerator.Server.Services.EnvelopeReceiverAuthorizationService ReceiverAuthorizationService
@inject EnvelopeGenerator.Server.Services.EnvelopeReceiverPageDataService PageDataService
@inject AppVersionService AppVersion
@inject IMemoryCache MemoryCache
@inject ILogger<ReceiverSignedPage> Logger
@implements IDisposable
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<link href="_content/DevExpress.Blazor.Reporting.Viewer/css/dx-blazor-reporting-components.bs5.css" rel="stylesheet" />
<link href="@AppVersion.GetVersionedUrl("css/envelope-viewer.css")" rel="stylesheet" />
<div class="envelope-viewer-layout">
<div class="envelope-action-bar">
<div class="envelope-action-bar__inner" style="flex-direction: column; align-items: stretch; padding: 0.35rem 1.5rem; gap: 0.35rem;">
<div style="display: flex; align-items: center; justify-content: space-between; gap: 1rem;">
<div style="flex: 0 1 auto; min-width: 0; display: flex; align-items: center; gap: 0.75rem;">
@if (_envelopeReceiver is not null)
{
<div style="font-size: 0.9rem; font-weight: 600; color: #1f2937; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;">
@(_envelopeReceiver.Envelope?.Title ?? "Dokument")
</div>
@if (!string.IsNullOrWhiteSpace(_envelopeReceiver.Envelope?.User?.FullName))
{
<span style="font-size: 0.7rem; color: #6b7280; white-space: nowrap;">
Von <span style="font-weight: 500; color: #374151;">@_envelopeReceiver.Envelope.User.FullName</span>
</span>
}
}
else
{
<div style="font-size: 0.9rem; font-weight: 600; color: #1f2937;">Signiertes Dokument</div>
}
</div>
@* Right: Submit button *@
<div style="flex: 0 0 auto;">
<button class="pdf-toolbar__btn pdf-toolbar__btn--signature-change pdf-toolbar__btn--signature-change-active"
@onclick="OpenSubmitConfirmPopup"
disabled="@_isLoggingOut"
title="Abschließen"
style="flex-shrink: 0;">
<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" viewBox="0 0 16 16">
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
</svg>
<span class="pdf-toolbar__btn-text">Abschließen</span>
</button>
</div>
</div>
</div>
</div>
<div class="envelope-content" style="padding: 0; overflow: hidden;">
@if (_isLoading)
{
<div class="d-flex justify-content-center align-items-center h-100">
<div class="text-center">
<div class="spinner-border text-white mb-3" style="width: 3.5rem; height: 3.5rem;" role="status">
<span class="visually-hidden">Lädt...</span>
</div>
<p class="text-white fw-semibold">Dokument wird geladen...</p>
</div>
</div>
}
else if (_errorMessage is not null)
{
<div class="error-container">
<div class="alert alert-danger shadow-lg">
<div class="d-flex align-items-start">
<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" fill="currentColor" class="me-3 flex-shrink-0" viewBox="0 0 16 16">
<path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z" />
<path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z" />
</svg>
<div>
<h5 class="mb-2">Fehler</h5>
<p class="mb-0">@_errorMessage</p>
</div>
</div>
</div>
</div>
}
else if (_report is not null)
{
<DxReportViewer Report="_report" RootCssClasses="w-100 h-100" />
}
</div>
</div>
@* Submit confirmation popup *@
<DxPopup @bind-Visible="_submitConfirmVisible"
HeaderText="Unterschrift bestätigen"
Width="440px"
MaxWidth="95vw"
ShowFooter="true"
CloseOnOutsideClick="false"
ShowCloseButton="false"
CloseOnEscape="false">
<BodyContentTemplate>
<div style="display: flex; align-items: flex-start; gap: 1rem; padding: 0.5rem 0;">
<div style="flex-shrink: 0; width: 40px; height: 40px; background: #d1fae5; border-radius: 50%; display: flex; align-items: center; justify-content: center;">
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="#065f46" viewBox="0 0 16 16">
<path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
</svg>
</div>
<div>
<p style="margin: 0 0 0.4rem; font-weight: 600; color: #1f2937; font-size: 0.95rem;">
Möchten Sie das Dokument verbindlich unterschreiben?
</p>
<p style="margin: 0; color: #6b7280; font-size: 0.85rem; line-height: 1.5;">
Diese Aktion kann nicht rückgängig gemacht werden. Mit der Bestätigung erklären Sie, das oben angezeigte Dokument elektronisch unterzeichnet zu haben. Das unterzeichnete Dokument wird anschließend an alle beteiligten Parteien übermittelt.
</p>
</div>
</div>
</BodyContentTemplate>
<FooterContentTemplate>
<div class="d-flex gap-2 justify-content-end w-100" style="padding: 0.5rem 0;">
<button class="btn btn-outline-secondary"
@onclick="() => _submitConfirmVisible = false"
style="border-radius: 6px; padding: 0.5rem 1.25rem; font-weight: 500;">
Abbrechen
</button>
<button class="btn btn-primary"
@onclick="SubmitAndLogoutAsync"
disabled="@_isLoggingOut"
style="background: linear-gradient(135deg, #059669 0%, #047857 100%); border: none; border-radius: 6px; padding: 0.5rem 1.5rem; font-weight: 600; box-shadow: 0 2px 4px rgba(5, 150, 105, 0.3);">
@if (_isLoggingOut)
{
<span class="spinner-border spinner-border-sm me-1" role="status"></span>
}
Abschließen
</button>
</div>
</FooterContentTemplate>
</DxPopup>
@code {
[Parameter] public string? EnvelopeKey { get; set; }
[SupplyParameterFromQuery(Name = "sid")]
public string? Sid { get; set; }
bool _isLoading = true;
string? _errorMessage;
ClaimsPrincipal? _receiverUser;
EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver.EnvelopeReceiverDto? _envelopeReceiver;
IReadOnlyList<SignatureDto> _signatures = [];
XtraReport? _report;
SignatureCaptureDto? _sig;
// ----- Submit / logout state -----
bool _isLoggingOut = false;
bool _submitConfirmVisible = false;
void OpenSubmitConfirmPopup() => _submitConfirmVisible = true;
async Task SubmitAndLogoutAsync()
{
if (_isLoggingOut) return;
_isLoggingOut = true;
_submitConfirmVisible = false;
await InvokeAsync(StateHasChanged);
await AuthService.LogoutEnvelopeReceiverAsync(EnvelopeKey!);
Navigation.NavigateTo("/", forceLoad: true);
}
protected override async Task OnInitializedAsync()
{
if (string.IsNullOrWhiteSpace(EnvelopeKey))
{
_errorMessage = "Envelope-Schlüssel fehlt.";
_isLoading = false;
return;
}
_receiverUser = await ReceiverAuthorizationService.AuthorizeAsync(EnvelopeKey);
if (_receiverUser is null)
{
Navigation.NavigateTo($"/envelope/login/{Uri.EscapeDataString(EnvelopeKey)}");
return;
}
// Read signature from IMemoryCache
if (!string.IsNullOrWhiteSpace(Sid)
&& MemoryCache.TryGetValue(Sid, out SignatureCaptureDto? cached)
&& cached is not null)
{
_sig = cached;
}
// Cache miss or missing sid — redirect back to report page
if (_sig is null)
{
Logger.LogWarning(
"[SignedPage] Cache miss or no sid={Sid} for {EnvelopeKey}, redirecting to report page.",
Sid, EnvelopeKey);
Navigation.NavigateTo(
$"/envelope/{Uri.EscapeDataString(EnvelopeKey)}",
forceLoad: true);
return;
}
try
{
var pdfBytes = await PageDataService.GetDocumentAsync(_receiverUser);
if (pdfBytes is not { Length: > 0 })
{
_errorMessage = "Dokument konnte nicht geladen werden.";
_isLoading = false;
return;
}
_envelopeReceiver = await PageDataService.GetEnvelopeReceiverAsync(EnvelopeKey);
_signatures = await PageDataService.GetSignaturesAsync(_receiverUser);
// Burn signature image + info onto PDF via PdfSharp
if (_sig is not null && _signatures.Count > 0)
pdfBytes = DrawSignaturesOnPdf(pdfBytes, _signatures, _sig);
var report = new XtraReport
{
PaperKind = DevExpress.Drawing.Printing.DXPaperKind.A4,
Landscape = false,
Margins = new System.Drawing.Printing.Margins(0, 0, 0, 0),
};
var detail = new DetailBand();
report.Bands.Add(detail);
detail.Controls.Add(new XRPdfContent
{
Source = pdfBytes,
GenerateOwnPages = true,
});
_report = report;
}
catch (Exception ex)
{
_errorMessage = $"Fehler: {ex.Message}";
Logger.LogError(ex, "Error loading signed page for {EnvelopeKey}", EnvelopeKey);
}
_isLoading = false;
await InvokeAsync(StateHasChanged);
}
protected override async Task OnAfterRenderAsync(bool firstRender)
{
if (!firstRender) return;
if (_sig is not null)
{
await JSRuntime.InvokeVoidAsync("console.log",
$"[SignedPage] sid={Sid} | FullName={_sig.FullName} | Place={_sig.Place} | Position={_sig.Position} | DataUrl.Length={_sig.DataUrl?.Length ?? 0}");
}
else
{
await JSRuntime.InvokeVoidAsync("console.log",
$"[SignedPage] Cache miss or no sid. sid={Sid}");
}
}
public void Dispose()
{
_report?.Dispose();
}
// ----- PDF signature rendering -----
/// <summary>
/// Uses PdfSharp to burn the captured signature onto the PDF at each signature field.
/// Layout per field (top-left origin, Y down, units = PDF points):
/// [top 65%] signature image
/// [separator line]
/// [bottom 35%] FullName (bold) / Position (optional) / Place, Date
/// </summary>
static byte[] DrawSignaturesOnPdf(
byte[] pdfBytes,
IReadOnlyList<SignatureDto> signatures,
SignatureCaptureDto sig)
{
var imgBytes = DataUrlToBytes(sig.DataUrl);
if (imgBytes is not { Length: > 0 }) return pdfBytes;
using var inputMs = new System.IO.MemoryStream(pdfBytes);
using var outputMs = new System.IO.MemoryStream();
var document = PdfSharp.Pdf.IO.PdfReader.Open(
inputMs, PdfSharp.Pdf.IO.PdfDocumentOpenMode.Modify);
const double sigW = 1.77 * 72; // 127.44 pt
const double sigH = 1.96 * 72; // 141.12 pt
const double imgRatio = 0.52; // top 52% = image
const double lineH = 11.5; // fixed row height matching font size (bold 7.5pt + normal 6.5pt)
const double bgPad = 3.0; // background box padding around content (pt)
var black = PdfSharp.Drawing.XColor.FromArgb(255, 20, 20, 20);
var darkGray = PdfSharp.Drawing.XColor.FromArgb(255, 80, 80, 80);
var lineColor = PdfSharp.Drawing.XColor.FromArgb(180, 100, 100, 120);
var bgColor = PdfSharp.Drawing.XColor.FromArgb(255, 255, 253, 240);
var bgBrush = new PdfSharp.Drawing.XSolidBrush(bgColor);
var fontBold = new PdfSharp.Drawing.XFont("Arial", 7.5, PdfSharp.Drawing.XFontStyleEx.Bold);
var fontNormal = new PdfSharp.Drawing.XFont("Arial", 6.5, PdfSharp.Drawing.XFontStyleEx.Regular);
var linePen = new PdfSharp.Drawing.XPen(lineColor, 0.5);
var fmtLeft = new PdfSharp.Drawing.XStringFormat
{
Alignment = PdfSharp.Drawing.XStringAlignment.Near,
LineAlignment = PdfSharp.Drawing.XLineAlignment.Near,
};
var date = DateTime.Now.ToString("dd.MM.yyyy");
foreach (var field in signatures)
{
int pageIndex = field.Page - 1;
if (pageIndex < 0 || pageIndex >= document.PageCount) continue;
var page = document.Pages[pageIndex];
using var gfx = PdfSharp.Drawing.XGraphics.FromPdfPage(page);
double x = field.X;
double y = field.Y;
// --- Calculate layout positions first (needed for bg rect) ---
double imgH = sigH * imgRatio;
double lineY = y + imgH + 1.0; // 1pt gap between image and separator
double textY = lineY + 1.5; // 1.5pt gap below separator line
double padding = 3;
// Row 1: FullName
double row1Y = textY;
// Row 2: Position (optional)
double row2Y = row1Y + lineH;
// Row 3: Place, Date — immediately after row2 regardless of position
double row3Y = !string.IsNullOrWhiteSpace(sig.Position) ? row2Y + lineH : row2Y;
double contentBottom = row3Y + lineH;
// --- Background rectangle sized to actual content (not full sigH) ---
var bgRect = new PdfSharp.Drawing.XRect(
x - bgPad,
y - bgPad,
sigW + bgPad * 2,
(contentBottom - y) + bgPad * 2);
gfx.DrawRectangle(bgBrush, bgRect);
// --- Image area ---
var imgRect = new PdfSharp.Drawing.XRect(x, y, sigW, imgH);
using var imgStream = new System.IO.MemoryStream(imgBytes);
var xImg = PdfSharp.Drawing.XImage.FromStream(imgStream);
gfx.DrawImage(xImg, imgRect);
// --- Separator line ---
gfx.DrawLine(linePen, x + 2, lineY, x + sigW - 2, lineY);
// --- Text rows ---
// Row 1: FullName (bold)
var nameRect = new PdfSharp.Drawing.XRect(x + padding, row1Y, sigW - padding * 2, lineH);
gfx.DrawString(sig.FullName, fontBold, new PdfSharp.Drawing.XSolidBrush(black), nameRect, fmtLeft);
// Row 2: Position (optional)
if (!string.IsNullOrWhiteSpace(sig.Position))
{
var posRect = new PdfSharp.Drawing.XRect(x + padding, row2Y, sigW - padding * 2, lineH);
gfx.DrawString(sig.Position, fontNormal, new PdfSharp.Drawing.XSolidBrush(darkGray), posRect, fmtLeft);
}
// Row 3: Place, Date
var placeDate = $"{sig.Place}, {date}";
var dateRect = new PdfSharp.Drawing.XRect(x + padding, row3Y, sigW - padding * 2, lineH);
gfx.DrawString(placeDate, fontNormal, new PdfSharp.Drawing.XSolidBrush(darkGray), dateRect, fmtLeft);
}
document.Save(outputMs);
return outputMs.ToArray();
}
static byte[]? DataUrlToBytes(string? dataUrl)
{
if (string.IsNullOrWhiteSpace(dataUrl)) return null;
var comma = dataUrl.IndexOf(',');
if (comma < 0) return null;
return Convert.FromBase64String(dataUrl[(comma + 1)..]);
}
}

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@page "/envelope/DxPdfViewer"
@rendermode InteractiveServer
@using System.IO
@using DevExpress.Blazor
@using System.Reflection
@using DevExpress.Blazor.PdfViewer
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<style>
.custom-drop-zone {
padding: 0 !important;
border-style: dashed;
border-width: 2px !important;
height: 230px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
background-color: rgba(183, 183, 183, 0.1);
}
.custom-drop-zone.custom-drop-zone-hover {
border-style: solid;
}
.custom-drop-zone svg {
width: 42px;
height: 42px;
}
.custom-drop-zone > *:not(#overviewDemoSelectButton) {
pointer-events: none;
}
.pdf-viewer {
height: 800px !important;
min-height: 800px !important;
}
.pdf-viewer .dxbrv-surface-wrapper,
.pdf-viewer .dxbrv-document-surface {
height: 100% !important;
min-height: 750px !important;
}
.pdf-viewer .dxbrv-report-preview-content {
width: auto !important;
height: auto !important;
min-width: 200px !important;
min-height: 200px !important;
}
</style>
<div id="overviewDemoDropZone" class="card custom-drop-zone rounded-3 w-100 m-0">
<span class="drop-file-icon mb-3"></span>
<span class="drop-file-label">Drag and Drop File Here</span><span class="m-1">or</span>
<DxButton Id="overviewDemoSelectButton"
CssClass="m-1"
RenderStyle="ButtonRenderStyle.Primary"
Text="Select File" />
</div>
<DxFileInput @ref="fileInput"
AcceptedFileTypes="@ALLOWED_FILE_TYPES"
AllowedFileExtensions="@ALLOWED_FILE_TYPES"
CssClass="w-100"
ExternalDropZoneCssSelector="#overviewDemoDropZone"
ExternalDropZoneDragOverCssClass="custom-drop-zone-hover"
ExternalSelectButtonCssSelector="#overviewDemoSelectButton"
FilesUploading="OnFilesUploading"
MaxFileSize="2000000">
</DxFileInput>
@if (DocumentContent != null && DocumentContent.Length > 0)
{
<div class="alert alert-success mt-3">
PDF loaded: @DocumentContent.Length bytes
</div>
<DxPdfViewer CssClass="w-100 pdf-viewer" DocumentContent="@DocumentContent" />
}
else
{
<div class="alert alert-info mt-3">
Please upload a PDF file to view it.
</div>
}
@code {
readonly List<string> ALLOWED_FILE_TYPES = new List<string> { ".pdf" };
DxFileInput fileInput;
byte[] DocumentContent { get; set; }
protected override void OnInitialized()
{
Assembly assembly = Assembly.GetExecutingAssembly();
Stream stream = assembly.GetManifestResourceStream("EnvelopeGenerator.Server.Resources.Invoice.pdf");
if (stream != null)
{
using (stream)
using (var binaryReader = new BinaryReader(stream))
DocumentContent = binaryReader.ReadBytes((int)stream.Length);
}
}
protected async Task OnFilesUploading(FilesUploadingEventArgs args)
{
using (MemoryStream stream = new MemoryStream())
{
IFileInputSelectedFile file = args.Files[0];
await file.OpenReadStream(file.Size).CopyToAsync(stream);
DocumentContent = stream.ToArray();
await InvokeAsync(StateHasChanged);
}
}
}

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@page "/envelope/{EnvelopeKey}/DxReportViewer"
@rendermode InteractiveServer
@using XtraReport = DevExpress.XtraReports.UI.XtraReport
@using DevExpress.Blazor.Reporting
@using Microsoft.Extensions.Options
@using EnvelopeGenerator.Server.Client.Options
@using EnvelopeGenerator.Server.Client.Services
@inject InMemoryReportStorageWebExtension ReportStorage
@inject DocumentService DocumentService
@inject IOptions<ApiOptions> AppOptions
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<link href="_content/DevExpress.Blazor.Reporting.Viewer/css/dx-blazor-reporting-components.bs5.css" rel="stylesheet" />
@if (_report is not null) {
<DxReportViewer Report="_report" RootCssClasses="w-100 h-100" Zoom="1.3" />
}
@code {
[Parameter] public string EnvelopeKey { get; init; } = null!;
XtraReport? _report = null;
protected override async Task OnInitializedAsync()
{
_report = await CreateReport();
}
async Task<XtraReport> CreateReport()
{
if (AppOptions.Value.UsePredefinedReports)
{
return Client.PredefinedReports.ReportsFactory.GetReport("LargeDatasetReport");
}
else
{
var pdfBytes = await DocumentService.GetDocumentAsync(EnvelopeKey);
if (pdfBytes is null || pdfBytes.Length == 0)
throw new InvalidOperationException($"No PDF bytes found for EnvelopeKey: {EnvelopeKey}");
var report = new XtraReport();
var detail = new DevExpress.XtraReports.UI.DetailBand();
report.Bands.Add(detail);
detail.Controls.Add(new DevExpress.XtraReports.UI.XRPdfContent { Source = pdfBytes, GenerateOwnPages = true });
return report;
}
}
}

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@page "/envelope/Embed"
@rendermode InteractiveServer
@using System.IO
@using DevExpress.Blazor
@using System.Reflection
<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
<style>
.custom-drop-zone {
padding: 0 !important;
border-style: dashed;
border-width: 2px !important;
height: 230px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
background-color: rgba(183, 183, 183, 0.1);
}
.custom-drop-zone.custom-drop-zone-hover {
border-style: solid;
}
.custom-drop-zone svg {
width: 42px;
height: 42px;
}
.custom-drop-zone > *:not(#overviewDemoSelectButton) {
pointer-events: none;
}
.pdf-viewer {
height: 800px !important;
min-height: 800px !important;
}
.pdf-viewer .dxbrv-surface-wrapper,
.pdf-viewer .dxbrv-document-surface {
height: 100% !important;
min-height: 750px !important;
}
.pdf-viewer .dxbrv-report-preview-content {
width: auto !important;
height: auto !important;
min-width: 200px !important;
min-height: 200px !important;
}
</style>
<div id="overviewDemoDropZone" class="card custom-drop-zone rounded-3 w-100 m-0">
<span class="drop-file-icon mb-3"></span>
<span class="drop-file-label">Drag and Drop File Here</span><span class="m-1">or</span>
<DxButton Id="overviewDemoSelectButton"
CssClass="m-1"
RenderStyle="ButtonRenderStyle.Primary"
Text="Select File" />
</div>
<DxFileInput @ref="fileInput"
AcceptedFileTypes="@ALLOWED_FILE_TYPES"
AllowedFileExtensions="@ALLOWED_FILE_TYPES"
CssClass="w-100"
ExternalDropZoneCssSelector="#overviewDemoDropZone"
ExternalDropZoneDragOverCssClass="custom-drop-zone-hover"
ExternalSelectButtonCssSelector="#overviewDemoSelectButton"
FilesUploading="OnFilesUploading"
MaxFileSize="2000000">
</DxFileInput>
@if (DocumentContent != null && DocumentContent.Length > 0)
{
<div class="alert alert-success mt-3">
PDF loaded: @DocumentContent.Length bytes
</div>
<embed src="@GetPdfDataUrl()" type="application/pdf" class="w-100 pdf-viewer" />
}
else
{
<div class="alert alert-info mt-3">
Please upload a PDF file to view it.
</div>
}
@code {
readonly List<string> ALLOWED_FILE_TYPES = new List<string> { ".pdf" };
DxFileInput fileInput;
byte[] DocumentContent { get; set; }
protected override void OnInitialized()
{
Assembly assembly = Assembly.GetExecutingAssembly();
Stream stream = assembly.GetManifestResourceStream("EnvelopeGenerator.Server.Resources.Invoice.pdf");
if (stream != null)
{
using (stream)
using (var binaryReader = new BinaryReader(stream))
DocumentContent = binaryReader.ReadBytes((int)stream.Length);
}
}
protected async Task OnFilesUploading(FilesUploadingEventArgs args)
{
using (MemoryStream stream = new MemoryStream())
{
IFileInputSelectedFile file = args.Files[0];
await file.OpenReadStream(file.Size).CopyToAsync(stream);
DocumentContent = stream.ToArray();
await InvokeAsync(StateHasChanged);
}
}
private string GetPdfDataUrl()
{
if (DocumentContent == null || DocumentContent.Length == 0)
return string.Empty;
string base64 = Convert.ToBase64String(DocumentContent);
return $"data:application/pdf;base64,{base64}#toolbar=0&navpanes=0&scrollbar=1";
}
}

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@using System.Net.Http
@using System.Net.Http.Json
@using Microsoft.AspNetCore.Components.Forms
@using Microsoft.AspNetCore.Components.Routing
@using Microsoft.AspNetCore.Components.Web
@using static Microsoft.AspNetCore.Components.Web.RenderMode
@using Microsoft.AspNetCore.Components.Web.Virtualization
@using Microsoft.JSInterop
@using EnvelopeGenerator.Server
@using EnvelopeGenerator.Server.Client
@using EnvelopeGenerator.Server.Components
@using DevExpress.Blazor

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using DigitalData.Core.Abstraction.Application.DTO;
using DigitalData.Core.Exceptions;
using EnvelopeGenerator.Server.Extensions;
using EnvelopeGenerator.Application.Common.Dto;
using EnvelopeGenerator.Application.Common.Extensions;
using EnvelopeGenerator.Application.Common.Interfaces.Services;
using EnvelopeGenerator.Application.Common.Notifications.DocSigned;
using EnvelopeGenerator.Application.Common.Notifications.RemoveSignature;
using EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
using EnvelopeGenerator.Application.Histories.Queries;
using EnvelopeGenerator.Domain.Constants;
using MediatR;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Manages annotations and signature lifecycle for envelopes.
/// </summary>
[Authorize(Policy = AuthPolicy.Receiver)]
[ApiController]
[Route("api/[controller]")]
public class AnnotationController : ControllerBase
{
[Obsolete("Use MediatR")]
private readonly IEnvelopeHistoryService _historyService;
[Obsolete("Use MediatR")]
private readonly IEnvelopeReceiverService _envelopeReceiverService;
private readonly IMediator _mediator;
private readonly ILogger<AnnotationController> _logger;
/// <summary>
/// Initializes a new instance of <see cref="AnnotationController"/>.
/// </summary>
[Obsolete("Use MediatR")]
public AnnotationController(
ILogger<AnnotationController> logger,
IEnvelopeHistoryService envelopeHistoryService,
IEnvelopeReceiverService envelopeReceiverService,
IMediator mediator)
{
_historyService = envelopeHistoryService;
_envelopeReceiverService = envelopeReceiverService;
_mediator = mediator;
_logger = logger;
}
/// <summary>
/// Creates or updates annotations for the authenticated envelope receiver.
/// </summary>
/// <param name="psPdfKitAnnotation">Annotation payload.</param>
/// <param name="cancel">Cancellation token.</param>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpPost]
[Obsolete("PSPDF Kit will no longer be used.")]
public async Task<IActionResult> CreateOrUpdate([FromBody] PsPdfKitAnnotation? psPdfKitAnnotation = null, CancellationToken cancel = default)
{
var signature = User.ReceiverSignature();
var uuid = User.EnvelopeUuid();
var envelopeReceiver = await _mediator.ReadEnvelopeReceiverAsync(uuid, signature, cancel).ThrowIfNull(Exceptions.NotFound);
if (!envelopeReceiver.Envelope!.ReadOnly && psPdfKitAnnotation is null)
return BadRequest();
if (await _mediator.IsSignedAsync(uuid, signature, cancel))
return Problem(statusCode: StatusCodes.Status409Conflict);
else if (await _mediator.AnyHistoryAsync(uuid, new[] { EnvelopeStatus.EnvelopeRejected, EnvelopeStatus.DocumentRejected }, cancel))
return Problem(statusCode: StatusCodes.Status423Locked);
var envelopeReceiverDto = await _mediator.ReadEnvelopeReceiverAsync(uuid, signature, cancel);
var docSignedNotification = envelopeReceiverDto is not null
? new DocSignedNotification { EnvelopeReceiver = envelopeReceiverDto, PsPdfKitAnnotation = psPdfKitAnnotation }
: throw new NotFoundException("Envelope receiver is not found.");
try
{
await _mediator.Publish(docSignedNotification, cancel);
}
catch (Exception)
{
await _mediator.Publish(new RemoveSignatureNotification()
{
EnvelopeId = docSignedNotification.EnvelopeReceiver.EnvelopeId,
ReceiverId = docSignedNotification.EnvelopeReceiver.ReceiverId
}, cancel);
throw;
}
await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
return Ok();
}
/// <summary>
/// Rejects the document for the current receiver.
/// </summary>
/// <param name="reason">Optional rejection reason.</param>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpPost("reject")]
[Obsolete("Use MediatR")]
public async Task<IActionResult> Reject([FromBody] string? reason = null)
{
var signature = User.ReceiverSignature();
var uuid = User.EnvelopeUuid();
var mail = User.ReceiverMail();
var envRcvRes = await _envelopeReceiverService.ReadByUuidSignatureAsync(uuid: uuid, signature: signature);
if (envRcvRes.IsFailed)
{
_logger.LogNotice(envRcvRes.Notices);
return Unauthorized("you are not authorized");
}
var histRes = await _historyService.RecordAsync(envRcvRes.Data.EnvelopeId, userReference: mail, EnvelopeStatus.DocumentRejected, comment: reason);
if (histRes.IsSuccess)
{
await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
return NoContent();
}
_logger.LogEnvelopeError(uuid: uuid, signature: signature, message: "Unexpected error happened in api/envelope/reject");
_logger.LogNotice(histRes.Notices);
return StatusCode(500, histRes.Messages);
}
}

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using DigitalData.Auth.Claims;
using EnvelopeGenerator.Server.Controllers.Interfaces;
using EnvelopeGenerator.Server.Models;
using EnvelopeGenerator.Domain.Constants;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Controller verantwortlich für die Benutzer-Authentifizierung, einschließlich Anmelden, Abmelden und Überprüfung des Authentifizierungsstatus.
/// </summary>
[Route("api/[controller]")]
[ApiController]
public partial class AuthController(IOptions<AuthTokenKeys> authTokenKeyOptions, IAuthorizationService authService) : ControllerBase, IAuthController
{
private readonly AuthTokenKeys authTokenKeys = authTokenKeyOptions.Value;
/// <summary>
///
/// </summary>
public IAuthorizationService AuthService { get; } = authService;
/// <summary>
/// Entfernt das Authentifizierungs-Cookie des Benutzers (AuthCookie)
/// </summary>
/// <returns>
/// Gibt eine HTTP 200 oder 401.
/// </returns>
/// <remarks>
/// Sample request:
///
/// POST /api/auth/logout
///
/// </remarks>
/// <response code="200">Erfolgreich gelöscht, wenn der Benutzer ein berechtigtes Cookie hat.</response>
/// <response code="401">Wenn es kein zugelassenes Cookie gibt, wird „nicht zugelassen“ zurückgegeben.</response>
[ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
[ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
[HttpPost("logout")]
public IActionResult Logout()
{
Response.Cookies.Delete(authTokenKeys.Cookie);
return Ok();
}
/// <summary>
/// Prüft, ob der Benutzer ein autorisiertes Token hat.
/// </summary>
/// <returns>Wenn ein autorisiertes Token vorhanden ist HTTP 200 asynchron 401</returns>
/// <remarks>
/// Sample request:
///
/// GET /api/auth
///
/// </remarks>
/// <response code="200">Wenn es einen autorisierten Cookie gibt.</response>
/// <response code="401">Wenn kein Cookie vorhanden ist oder nicht autorisierte.</response>
[ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
[ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
[HttpGet("check")]
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
public IActionResult Check(string? role = null)
=> role is not null && !User.IsInRole(role)
? Unauthorized()
: Ok();
/// <summary>
/// Checks whether the caller holds a valid per-envelope receiver token for the given envelope key.
/// The request must carry a cookie named <c>AuthTokenSignFLOWReceiver.{envelopeKey}</c>.
/// </summary>
/// <param name="envelopeKey">The unique envelope key extracted from the route.</param>
/// <response code="200">Valid per-envelope token found.</response>
/// <response code="401">Token is missing, expired or invalid.</response>
[ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
[ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpGet("check/envelope/{envelopeKey}")]
public IActionResult CheckEnvelopeReceiver([FromRoute] string envelopeKey) => Ok();
/// <summary>
/// Removes the per-envelope receiver cookie for the given envelope key.
/// </summary>
/// <param name="envelopeKey">The unique envelope key whose cookie should be deleted.</param>
/// <response code="200">Cookie successfully deleted.</response>
[ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
[HttpPost("logout/envelope/{envelopeKey}")]
public IActionResult LogoutEnvelopeReceiver([FromRoute] string envelopeKey)
{
var cookieName = CookieNames.GetEnvelopeReceiverCookieName(authTokenKeys.Cookie, envelopeKey);
Response.Cookies.Delete(cookieName);
return Ok();
}
/// <summary>
/// Removes all per-envelope receiver cookies from the current request.
/// </summary>
/// <response code="200">All envelope receiver cookies successfully deleted.</response>
[ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
[HttpPost("logout/envelope")]
public IActionResult LogoutAllEnvelopeReceivers()
{
foreach (var cookieName in Request.Cookies.Keys.Where(k => CookieNames.IsEnvelopeReceiverCookie(k, authTokenKeys.Cookie)))
Response.Cookies.Delete(cookieName);
return Ok();
}
}

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using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Options;
using System.Text.Json;
using EnvelopeGenerator.Server.Options;
using EnvelopeGenerator.Domain.Constants;
using EnvelopeGenerator.Server.Extensions;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Manages cached data for receivers using distributed cache.
/// </summary>
[ApiController]
[Route("api/[controller]")]
[Authorize(Policy = AuthPolicy.Receiver)]
public class CacheController(
IDistributedCache cache,
IOptions<CacheOptions> cacheOptions) : ControllerBase
{
private const string SignatureCacheKeyPrefix = "envelope-generator.receiver-ui.signature:";
/// <summary>
/// Stores a receiver's signature in cache for the specified envelope.
/// </summary>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpPost("SignatureCapture/{envelopeKey}")]
public async Task<IActionResult> SaveSignature(
[FromRoute] string envelopeKey,
[FromBody] SignatureCacheRequest request,
CancellationToken cancel)
{
var cacheKey = $"{SignatureCacheKeyPrefix}{User.ReceiverSignature()}";
var json = JsonSerializer.Serialize(request);
var options = cacheOptions.Value.SignatureCacheExpiration.HasValue
? new DistributedCacheEntryOptions { AbsoluteExpirationRelativeToNow = cacheOptions.Value.SignatureCacheExpiration.Value }
: null;
await cache.SetStringAsync(cacheKey, json, options ?? new DistributedCacheEntryOptions(), cancel);
return Ok();
}
/// <summary>
/// Retrieves a cached signature for the specified envelope.
/// </summary>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpGet("SignatureCapture/{envelopeKey}")]
public async Task<IActionResult> GetSignature([FromRoute] string envelopeKey, CancellationToken cancel)
{
var cacheKey = $"{SignatureCacheKeyPrefix}{User.ReceiverSignature()}";
var json = await cache.GetStringAsync(cacheKey, cancel);
if (json is null)
return NotFound();
var signature = JsonSerializer.Deserialize<SignatureCacheRequest>(json);
return Ok(signature);
}
/// <summary>
/// Deletes a cached signature for the specified envelope.
/// </summary>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpDelete("SignatureCapture/{envelopeKey}")]
public async Task<IActionResult> DeleteSignature([FromRoute] string envelopeKey, CancellationToken cancel)
{
var cacheKey = $"{SignatureCacheKeyPrefix}{User.ReceiverSignature()}";
await cache.RemoveAsync(cacheKey, cancel);
return Ok();
}
}
/// <summary>
/// Request model for caching signature data.
/// </summary>
public sealed record SignatureCacheRequest(
string DataUrl,
string FullName,
string Place,
string? Position = null);

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using EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Exposes configuration data required by the client applications.
/// </summary>
/// <remarks>
/// Initializes a new instance of <see cref="ConfigController"/>.
/// </remarks>
[Route("api/[controller]")]
[ApiController]
[Authorize]
public class ConfigController(IOptionsMonitor<AnnotationParams> annotationParamsOptions) : ControllerBase
{
private readonly AnnotationParams _annotationParams = annotationParamsOptions.CurrentValue;
/// <summary>
/// Returns annotation configuration that was previously rendered by MVC.
/// </summary>
[HttpGet("Annotations")]
[Obsolete("PSPDF Kit will no longer be used.")]
public IActionResult GetAnnotationParams()
{
return Ok(_annotationParams.AnnotationJSObject);
}
}

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using DigitalData.Auth.Claims;
using EnvelopeGenerator.Server.Controllers.Interfaces;
using EnvelopeGenerator.Server.Extensions;
using EnvelopeGenerator.Application.Documents.Queries;
using EnvelopeGenerator.Domain.Constants;
using MediatR;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Provides access to envelope documents for authenticated receivers.
/// </summary>
/// <remarks>
/// Initializes a new instance of the <see cref="DocumentController"/> class.
/// </remarks>
[ApiController]
[Route("api/[controller]")]
public class DocumentController(IMediator mediator, IAuthorizationService authService, ILogger<DocumentController> logger) : ControllerBase, IAuthController
{
/// <summary>
///
/// </summary>
public IAuthorizationService AuthService => authService;
/// <summary>
/// Returns the document bytes receiver.
/// </summary>
/// <param name="query">Encoded envelope key.</param>
/// <param name="cancel">Cancellation token.</param>
[HttpGet]
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
public async Task<IActionResult> GetDocument(CancellationToken cancel, [FromQuery] ReadDocumentQuery? query = null)
{
if (query is null)
return BadRequest("Missing document query.");
var senderDoc = await mediator.Send(query, cancel);
return senderDoc.ByteData is byte[] senderDocByte
? File(senderDocByte, "application/octet-stream")
: NotFound("Document is empty.");
}
/// <summary>
/// Gets the document for the specified envelope key.
/// </summary>
/// <param name="envelopeKey"></param>
/// <param name="cancel"></param>
/// <returns></returns>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpGet("{envelopeKey}")]
public async Task<IActionResult> GetDocumentOfReceiver(string envelopeKey, CancellationToken cancel)
{
int envelopeId = User.EnvelopeId();
var senderDoc = await mediator.Send(new ReadDocumentQuery() { EnvelopeId = envelopeId }, cancel);
if (senderDoc.ByteData is not byte[] senderDocByte)
return NotFound("Document is empty.");
Response.Headers.ContentDisposition = $"inline; filename=\"{envelopeKey}.pdf\"";
return File(senderDocByte, "application/pdf");
}
}

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using AutoMapper;
using EnvelopeGenerator.Application.EmailTemplates.Commands;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using MediatR;
using EnvelopeGenerator.Application.Common.Dto;
using DigitalData.Core.Abstraction.Application.Repository;
using EnvelopeGenerator.Domain.Entities;
using Microsoft.EntityFrameworkCore;
using EnvelopeGenerator.Domain.Constants;
using EnvelopeGenerator.Application.EmailTemplates.Queries;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Controller for managing temp templates.
/// Steuerung zur Verwaltung von E-Mail-Vorlagen.
/// </summary>
/// <remarks>
/// Initialisiert eine neue Instanz der <see cref="EmailTemplateController"/>-Klasse.
/// </remarks>
/// <param name="mediator">
/// Die Mediator-Instanz, die zum Senden von Befehlen und Abfragen verwendet wird.
/// </param>
[Route("api/[controller]")]
[ApiController]
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
public class EmailTemplateController(IMediator mediator) : ControllerBase
{
/// <summary>
/// Ruft E-Mail-Vorlagen basierend auf der angegebenen Abfrage ab.
/// Gibt alles zurück, wenn keine Id- oder Typ-Informationen eingegeben wurden.
/// </summary>
/// <param name="emailTemplate">Die Abfrageparameter zum Abrufen von E-Mail-Vorlagen.</param>
/// <param name="cancel"></param>
/// <returns>Gibt HTTP-Antwort zurück</returns>
/// <remarks>
/// Sample request:
/// GET /api/EmailTemplate?emailTemplateId=123
/// </remarks>
/// <response code="200">Wenn die E-Mail-Vorlagen erfolgreich abgerufen werden.</response>
/// <response code="400">Wenn die Abfrageparameter ungültig sind.</response>
/// <response code="401">Wenn der Benutzer nicht authentifiziert ist.</response>
/// <response code="404">Wenn die gesuchte Abfrage nicht gefunden wird.</response>
[HttpGet]
public async Task<IActionResult> Get([FromQuery] ReadEmailTemplateQuery emailTemplate, CancellationToken cancel)
{
var result = await mediator.Send(emailTemplate, cancel);
return Ok(result);
}
/// <summary>
/// Updates an temp template or resets it if no update command is provided.
/// Aktualisiert eine E-Mail-Vorlage oder setzt sie zurück, wenn kein Aktualisierungsbefehl angegeben ist.
/// </summary>
/// <param name="update"></param>
/// <param name="cancel"></param>
/// <returns></returns>
/// <response code="200">Wenn die E-Mail-Vorlage erfolgreich aktualisiert oder zurückgesetzt wird.</response>
/// <response code="400">Wenn die Abfrage ohne einen String gesendet wird.</response>
/// <response code="401">Wenn der Benutzer nicht authentifiziert ist.</response>
/// <response code="404">Wenn die gesuchte Abfrage nicht gefunden wird.</response>
[HttpPut]
public async Task<IActionResult> Update([FromBody] UpdateEmailTemplateCommand update, CancellationToken cancel)
{
await mediator.Send(update, cancel);
return Ok();
}
}

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using EnvelopeGenerator.Server.Extensions;
using EnvelopeGenerator.Application.Envelopes.Commands;
using EnvelopeGenerator.Application.Envelopes.Queries;
using MediatR;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Dieser Controller stellt Endpunkte für die Verwaltung von Umschlägen bereit.
/// </summary>
/// <remarks>
/// Die API ermöglicht das Abrufen und Verwalten von Umschlägen basierend auf Benutzerinformationen und Statusfiltern.
///
/// Mögliche Antworten:
/// - 200 OK: Die Anfrage war erfolgreich, und die angeforderten Daten werden zurückgegeben.
/// - 400 Bad Request: Die Anfrage war fehlerhaft oder unvollständig.
/// - 401 Unauthorized: Der Benutzer ist nicht authentifiziert.
/// - 403 Forbidden: Der Benutzer hat keine Berechtigung, auf die Ressource zuzugreifen.
/// - 404 Not Found: Die angeforderte Ressource wurde nicht gefunden.
/// - 500 Internal Server Error: Ein unerwarteter Fehler ist aufgetreten.
/// </remarks>
[Route("api/[controller]")]
[ApiController]
[Authorize]
public class EnvelopeController : ControllerBase
{
private readonly ILogger<EnvelopeController> _logger;
private readonly IMediator _mediator;
/// <summary>
/// Erstellt eine neue Instanz des EnvelopeControllers.
/// </summary>
/// <param name="logger">Der Logger, der für das Protokollieren von Informationen verwendet wird.</param>
/// <param name="mediator"></param>
public EnvelopeController(ILogger<EnvelopeController> logger, IMediator mediator)
{
_logger = logger;
_mediator = mediator;
}
/// <summary>
/// Ruft eine Liste von Umschlägen basierend auf dem Benutzer und den angegebenen Statusfiltern ab.
/// </summary>
/// <param name="envelope"></param>
/// <returns>Eine IActionResult-Instanz, die die abgerufenen Umschläge oder einen Fehlerstatus enthält.</returns>
/// <response code="200">Die Anfrage war erfolgreich, und die Umschläge werden zurückgegeben.</response>
/// <response code="400">Die Anfrage war fehlerhaft oder unvollständig.</response>
/// <response code="401">Der Benutzer ist nicht authentifiziert.</response>
/// <response code="403">Der Benutzer hat keine Berechtigung, auf die Ressource zuzugreifen.</response>
/// <response code="500">Ein unerwarteter Fehler ist aufgetreten.</response>
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
[HttpGet]
public async Task<IActionResult> GetAsync([FromQuery] ReadEnvelopeQuery envelope)
{
var result = await _mediator.Send(envelope.Authorize(User.GetId()));
return result.Any() ? Ok(result) : NotFound();
}
/// <summary>
/// Ruft das Ergebnis eines Dokuments basierend auf der ID ab.
/// </summary>
/// <param name="query"></param>
/// <param name="view">Gibt an, ob das Dokument inline angezeigt werden soll (true) oder als Download bereitgestellt wird (false).</param>
/// <returns>Eine IActionResult-Instanz, die das Dokument oder einen Fehlerstatus enthält.</returns>
/// <response code="200">Das Dokument wurde erfolgreich abgerufen.</response>
/// <response code="404">Das Dokument wurde nicht gefunden oder ist nicht verfügbar.</response>
/// <response code="500">Ein unerwarteter Fehler ist aufgetreten.</response>
[HttpGet("doc-result")]
public async Task<IActionResult> GetDocResultAsync([FromQuery] ReadEnvelopeQuery query, [FromQuery] bool view = false)
{
var envelopes = await _mediator.Send(query.Authorize(User.GetId()));
var envelope = envelopes.FirstOrDefault();
if (envelope is null)
return NotFound("Envelope not available.");
if (envelope.DocResult is null)
return NotFound("The document has not been fully signed or the result has not yet been released.");
if (view)
{
Response.Headers.Append("Content-Disposition", "inline; filename=\"" + envelope.Uuid + ".pdf\"");
return File(envelope.DocResult, "application/pdf");
}
return File(envelope.DocResult, "application/pdf", $"{envelope.Uuid}.pdf");
}
/// <summary>
///
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
[NonAction]
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
[HttpPost]
public async Task<IActionResult> CreateAsync([FromBody] CreateEnvelopeCommand command)
{
var res = await _mediator.Send(command.WithAuth(User.GetId()));
if (res is null)
{
_logger.LogError("Failed to create envelope. Envelope details: {EnvelopeDetails}", JsonConvert.SerializeObject(command));
return StatusCode(StatusCodes.Status500InternalServerError);
}
else
return Ok(res);
}
}

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using AutoMapper;
using EnvelopeGenerator.Application.EnvelopeReceivers.Commands;
using EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
using EnvelopeGenerator.Application.Envelopes.Queries;
using EnvelopeGenerator.Domain.Entities;
using EnvelopeGenerator.Server.Models;
using MediatR;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Data.SqlClient;
using Microsoft.Extensions.Options;
using System.Data;
using EnvelopeGenerator.Application.Common.SQL;
using EnvelopeGenerator.Application.Common.Dto.Receiver;
using EnvelopeGenerator.Application.Common.Interfaces.SQLExecutor;
using EnvelopeGenerator.Server.Extensions;
using EnvelopeGenerator.Domain.Constants;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Controller für die Verwaltung von Umschlagempfängern.
/// </summary>
/// <remarks>
/// Dieser Controller bietet Endpunkte für das Abrufen und Verwalten von Umschlagempfängerdaten.
/// </remarks>
[Route("api/[controller]")]
[Authorize]
[ApiController]
public class EnvelopeReceiverController : ControllerBase
{
private readonly ILogger<EnvelopeReceiverController> _logger;
private readonly IMediator _mediator;
private readonly IMapper _mapper;
private readonly IEnvelopeExecutor _envelopeExecutor;
private readonly IEnvelopeReceiverExecutor _erExecutor;
private readonly IDocumentExecutor _documentExecutor;
private readonly string _cnnStr;
/// <summary>
/// Konstruktor für den EnvelopeReceiverController.
/// </summary>
public EnvelopeReceiverController(ILogger<EnvelopeReceiverController> logger, IMediator mediator, IMapper mapper, IEnvelopeExecutor envelopeExecutor, IEnvelopeReceiverExecutor erExecutor, IDocumentExecutor documentExecutor, IOptions<ConnectionString> csOpt)
{
_logger = logger;
_mediator = mediator;
_mapper = mapper;
_envelopeExecutor = envelopeExecutor;
_erExecutor = erExecutor;
_documentExecutor = documentExecutor;
_cnnStr = csOpt.Value.Value;
}
/// <summary>
/// Ruft eine Liste von Umschlagempfängern basierend auf den angegebenen Abfrageparametern ab.
/// </summary>
/// <param name="envelopeReceiver">Die Abfrageparameter für die Filterung von Umschlagempfängern.</param>
/// <returns>Eine HTTP-Antwort mit der Liste der gefundenen Umschlagempfänger oder einem Fehlerstatus.</returns>
/// <remarks>
/// Dieser Endpunkt ermöglicht es, Umschlagempfänger basierend auf dem Benutzernamen und optionalen Statusfiltern abzurufen.
/// Wenn der Benutzername nicht ermittelt werden kann, wird ein Serverfehler zurückgegeben.
/// </remarks>
/// <response code="200">Die Liste der Umschlagempfänger wurde erfolgreich abgerufen.</response>
/// <response code="401">Wenn kein autorisierter Token vorhanden ist</response>
/// <response code="500">Ein unerwarteter Fehler ist aufgetreten.</response>
[Authorize]
[HttpGet]
public async Task<IActionResult> GetEnvelopeReceiver([FromQuery] ReadEnvelopeReceiverQuery envelopeReceiver)
{
envelopeReceiver = envelopeReceiver with { Username = User.GetUsername() };
var result = await _mediator.Send(envelopeReceiver);
return Ok(result);
}
/// <summary>
///
/// </summary>
/// <param name="envelopeKey"></param>
/// <param name="cancel"></param>
/// <returns></returns>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpGet("{envelopeKey}")]
public async Task<IActionResult> GetEnvelopeReceiverOfReceiver([FromRoute] string envelopeKey, CancellationToken cancel)
{
var er = await _mediator.Send(new ReadEnvelopeReceiverQuery()
{
Key = envelopeKey
}, cancel);
return Ok(er.SingleOrDefault());
}
/// <summary>
/// Ruft den Namen des zuletzt verwendeten Empfängers basierend auf der angegebenen E-Mail-Adresse ab.
/// </summary>
/// <param name="receiver">Abfrage, bei der nur eine der Angaben ID, Signatur oder E-Mail-Adresse des Empfängers eingegeben werden muss.</param>
/// <returns>Eine HTTP-Antwort mit dem Namen des Empfängers oder einem Fehlerstatus.</returns>
/// <remarks>
/// Dieser Endpunkt ermöglicht es, den Namen des zuletzt verwendeten Empfängers basierend auf der E-Mail-Adresse abzurufen.
/// </remarks>
/// <response code="200">Der Name des Empfängers wurde erfolgreich abgerufen.</response>
/// <response code="401">Wenn kein autorisierter Token vorhanden ist</response>
/// <response code="404">Kein Empfänger gefunden.</response>
/// <response code="500">Ein unerwarteter Fehler ist aufgetreten.</response>
[Authorize]
[HttpGet("salute")]
public async Task<IActionResult> GetReceiverName([FromQuery] ReadReceiverNameQuery receiver)
{
var name = await _mediator.Send(receiver);
return name is null ? NotFound() : Ok(name);
}
/// <summary>
/// Datenübertragungsobjekt mit Informationen zu Umschlägen, Empfängern und Unterschriften.
/// </summary>
/// <param name="request"></param>
/// <param name="cancel"></param>
/// <returns>HTTP-Antwort</returns>
/// <remarks>
/// Sample request:
///
/// POST /api/envelope
/// {
/// "title": "Vertragsdokument",
/// "message": "Bitte unterschreiben Sie dieses Dokument.",
/// "document": {
/// "dataAsBase64": "dGVzdC1iYXNlNjQtZGF0YQ=="
/// },
/// "receivers": [
/// {
/// "emailAddress": "example@example.com",
/// "signatures": [
/// {
/// "x": 100,
/// "y": 200,
/// "page": 1
/// }
/// ],
/// "name": "Max Mustermann",
/// "phoneNumber": "+49123456789"
/// }
/// ],
/// "tfaEnabled": false
/// }
///
/// </remarks>
/// <response code="202">Envelope-Erstellung und Sendeprozessbefehl erfolgreich</response>
/// <response code="400">Wenn ein Fehler im HTTP-Body auftritt</response>
/// <response code="401">Wenn kein autorisierter Token vorhanden ist</response>
/// <response code="500">Es handelt sich um einen unerwarteten Fehler. Die Protokolle sollten überprüft werden.</response>
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
[HttpPost]
public async Task<IActionResult> CreateAsync([FromBody] CreateEnvelopeReceiverCommand request, CancellationToken cancel)
{
#region Create Envelope
var envelope = await _envelopeExecutor.CreateEnvelopeAsync(User.GetId(), request.Title, request.Message, request.TFAEnabled, cancel);
#endregion
#region Add receivers
List<EnvelopeReceiver> sentReceivers = new();
List<ReceiverGetOrCreateCommand> unsentReceivers = new();
foreach (var receiver in request.Receivers)
{
var envelopeReceiver = await _erExecutor.AddEnvelopeReceiverAsync(envelope.Uuid, receiver.EmailAddress, receiver.Salution, receiver.PhoneNumber, cancel);
if (envelopeReceiver is null)
unsentReceivers.Add(receiver);
else
sentReceivers.Add(envelopeReceiver);
}
var res = _mapper.Map<CreateEnvelopeReceiverResponse>(envelope);
res.UnsentReceivers = unsentReceivers;
res.SentReceiver = _mapper.Map<List<ReceiverDto>>(sentReceivers.Select(er => er.Receiver));
#endregion
#region Add document
var document = await _documentExecutor.CreateDocumentAsync(request.Document.DataAsBase64, envelope.Uuid, cancel);
if (document is null)
return StatusCode(StatusCodes.Status500InternalServerError, "Document creation is failed.");
#endregion
#region Add document element
// @DOC_ID, @RECEIVER_ID, @POSITION_X, @POSITION_Y, @PAGE
string sql = @"
DECLARE @OUT_SUCCESS bit;
EXEC [dbo].[PRSIG_API_ADD_DOC_RECEIVER_ELEM]
{0},
{1},
{2},
{3},
{4},
@OUT_SUCCESS OUTPUT;
SELECT @OUT_SUCCESS as [@OUT_SUCCESS];";
foreach (var rcv in res.SentReceiver)
foreach (var sign in request.Receivers.Where(r => r.EmailAddress == rcv.EmailAddress).FirstOrDefault()?.DocReceiverElements ?? Enumerable.Empty<Application.EnvelopeReceivers.Commands.DocReceiverElementCreateDto>())
{
using SqlConnection conn = new(_cnnStr);
conn.Open();
var formattedSQL = string.Format(sql, document.Id.ToSqlParam(), rcv.Id.ToSqlParam(), sign.X.ToSqlParam(), sign.Y.ToSqlParam(), sign.Page.ToSqlParam());
using SqlCommand cmd = new(formattedSQL, conn);
cmd.CommandType = CommandType.Text;
using SqlDataReader reader = cmd.ExecuteReader();
if (reader.Read())
{
bool outSuccess = reader.GetBoolean(0);
if (!outSuccess)
_logger.LogWarning(
"PRSIG_API_ADD_DOC_RECEIVER_ELEM returned OUT_SUCCESS=false. DOC_ID={DocId}, RECEIVER_ID={ReceiverId}, Page={Page}",
document.Id, rcv.Id, sign.Page);
}
}
#endregion
#region Create history
// ENV_UID, STATUS_ID, USER_ID,
string sql_hist = @"
DECLARE @OUT_SUCCESS bit;
EXEC [dbo].[PRSIG_API_ADD_HISTORY_STATE]
{0},
{1},
{2},
@OUT_SUCCESS OUTPUT;
SELECT @OUT_SUCCESS as [@OUT_SUCCESS];";
using (SqlConnection conn = new(_cnnStr))
{
conn.Open();
var formattedSQL_hist = string.Format(sql_hist, envelope.Uuid.ToSqlParam(), 1003.ToSqlParam(), User.GetId().ToSqlParam());
using SqlCommand cmd = new(formattedSQL_hist, conn);
cmd.CommandType = CommandType.Text;
using SqlDataReader reader = cmd.ExecuteReader();
if (reader.Read())
{
bool outSuccess = reader.GetBoolean(0);
if (!outSuccess)
_logger.LogWarning(
"PRSIG_API_ADD_HISTORY_STATE returned OUT_SUCCESS=false. EnvelopeUuid={EnvelopeUuid}",
envelope.Uuid);
}
}
#endregion
return Ok(res);
}
/// <summary>
///
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsBase64String(string input)
{
if (string.IsNullOrWhiteSpace(input))
return false;
try
{
Convert.FromBase64String(input);
return true;
}
catch (FormatException)
{
return false;
}
}
}

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using MediatR;
using EnvelopeGenerator.Application.EnvelopeTypes.Queries;
using Microsoft.AspNetCore.Mvc;
namespace EnvelopeGenerator.GeneratorAPI.Controllers;
/// <summary>
///
/// </summary>
[ApiExplorerSettings(IgnoreApi = true)]
[Route("api/[controller]")]
[ApiController]
public class EnvelopeTypeController : ControllerBase
{
private readonly ILogger<EnvelopeTypeController> _logger;
private readonly IMediator _mediator;
/// <summary>
///
/// </summary>
/// <param name="logger"></param>
/// <param name="mediator"></param>
public EnvelopeTypeController(ILogger<EnvelopeTypeController> logger, IMediator mediator)
{
_logger = logger;
_mediator = mediator;
}
/// <summary>
///
/// </summary>
/// <returns></returns>
[HttpGet]
public async Task<IActionResult> GetAllAsync()
{
var result = await _mediator.Send(new ReadEnvelopeTypesQuery());
return Ok(result);
}
}

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using MediatR;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using EnvelopeGenerator.Application.Histories.Queries;
using EnvelopeGenerator.Domain.Constants;
using EnvelopeGenerator.Application.Common.Extensions;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Dieser Controller stellt Endpunkte für den Zugriff auf die Umschlaghistorie bereit.
/// </summary>
[Route("api/[controller]")]
[ApiController]
[Authorize]
public class HistoryController : ControllerBase
{
private readonly IMemoryCache _memoryCache;
private readonly IMediator _mediator;
/// <summary>
/// Konstruktor für den HistoryController.
/// </summary>
/// <param name="memoryCache"></param>
/// <param name="mediator"></param>
public HistoryController(IMemoryCache memoryCache, IMediator mediator)
{
_memoryCache = memoryCache;
_mediator = mediator;
}
/// <summary>
/// Gibt alle möglichen Verweise auf alle möglichen Include in einem Verlaufsdatensatz zurück. (z. B. DocumentSigned bezieht sich auf Receiver.)
/// Dies wird hinzugefügt, damit Client-Anwendungen sich selbst auf dem neuesten Stand halten können.
/// 1 - Sender:
/// Historische Datensätze über den Include der Empfänger. Diese haben Statuscodes, die mit 1* beginnen.
/// 2 - Receiver:
/// Historische Datensätze, die sich auf den Include des Absenders beziehen. Sie haben Statuscodes, die mit 2* beginnen.
/// 3 - System:
/// Historische Datensätze, die sich auf den allgemeinen Zustand des Umschlags beziehen. Diese haben Statuscodes, die mit 3* beginnen.
/// 4 - Unknown:
/// Ein unbekannter Datensatz weist auf einen möglichen Mangel oder eine Unstimmigkeit im Aktualisierungsprozess der Anwendung hin.
/// </summary>
/// <returns></returns>
/// <response code="200"></response>
[HttpGet("related")]
[Authorize]
public IActionResult GetReferenceTypes(ReferenceType? referenceType = null)
{
return referenceType is null
? Ok(_memoryCache.GetEnumAsDictionary<ReferenceType>("gen.api", ReferenceType.Unknown))
: Ok(referenceType.ToString());
}
/// <summary>
/// Gibt alle möglichen Include in einem Verlaufsdatensatz zurück.
/// Dies wird hinzugefügt, damit Client-Anwendungen sich selbst auf dem neuesten Stand halten können.
/// 1003: EnvelopeQueued
/// 1006: EnvelopeCompletelySigned
/// 1007: EnvelopeReportCreated
/// 1008: EnvelopeArchived
/// 1009: EnvelopeDeleted
/// 10007: EnvelopeRejected
/// 10009: EnvelopeWithdrawn
/// 2001: AccessCodeRequested
/// 2002: AccessCodeCorrect
/// 2003: AccessCodeIncorrect
/// 2004: DocumentOpened
/// 2005: DocumentSigned
/// 2006: DocumentForwarded
/// 2007: DocumentRejected
/// 2008: EnvelopeShared
/// 2009: EnvelopeViewed
/// 3001: MessageInvitationSent (Wird von Trigger verwendet)
/// 3002: MessageAccessCodeSent
/// 3003: MessageConfirmationSent
/// 3004: MessageDeletionSent
/// 3005: MessageCompletionSent
/// </summary>
/// <param name="status">
/// Abfrageparameter, der angibt, auf welche Referenz sich der Include bezieht.
/// 1 - Sender: Historische Datensätze, die sich auf den Include des Absenders beziehen. Sie haben Statuscodes, die mit 1* beginnen.
/// 2 - Receiver: Historische Datensätze über den Include der Empfänger. Diese haben Statuscodes, die mit 2* beginnen.
/// 3 - System: Diese werden durch Datenbank-Trigger aktualisiert und sind in den Tabellen EnvelopeHistory und EmailOut zu finden.Sie arbeiten
/// integriert mit der Anwendung EmailProfiler, um E-Mails zu versenden und haben die Codes, die mit 3* beginnen.
/// </param>
/// <returns>Gibt die HTTP-Antwort zurück.</returns>
/// <response code="200"></response>
[HttpGet("status")]
[Authorize]
public IActionResult GetEnvelopeStatus([FromQuery] EnvelopeStatus? status = null)
{
return status is null
? Ok(_memoryCache.GetEnumAsDictionary<EnvelopeStatus>("gen.api", Status.NonHist, Status.RelatedToFormApp))
: Ok(status.ToString());
}
/// <summary>
/// Ruft die gesamte Umschlaghistorie basierend auf den angegebenen Abfrageparametern ab.
/// </summary>
/// <param name="historyQuery">Die Abfrageparameter, die die Filterkriterien für die Umschlaghistorie definieren.</param>
/// <param name="cancel"></param>
/// <returns>Eine Liste von Historieneinträgen, die den angegebenen Kriterien entsprechen, oder nur der letzte Eintrag.</returns>
/// <response code="200">Die Anfrage war erfolgreich, und die Umschlaghistorie wird zurückgegeben.</response>
/// <response code="400">Die Anfrage war ungültig oder unvollständig.</response>
/// <response code="401">Der Benutzer ist nicht authentifiziert.</response>
/// <response code="403">Der Benutzer hat keine Berechtigung, auf die Ressource zuzugreifen.</response>
/// <response code="500">Ein unerwarteter Fehler ist aufgetreten.</response>
[HttpGet]
[Authorize]
public async Task<IActionResult> GetAllAsync([FromQuery] ReadHistoryQuery historyQuery, CancellationToken cancel)
{
var history = await _mediator.Send(historyQuery, cancel).ThrowIfEmpty(Exceptions.NotFound);
return Ok((historyQuery.OnlyLast) ? history.MaxBy(h => h.AddedWhen) : history);
}
}

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using System.Security.Claims;
using Microsoft.AspNetCore.Authorization;
namespace EnvelopeGenerator.Server.Controllers.Interfaces;
/// <summary>
///
/// </summary>
public interface IAuthController
{
/// <summary>
///
/// </summary>
IAuthorizationService AuthService { get; }
/// <summary>
///
/// </summary>
ClaimsPrincipal User { get; }
}
/// <summary>
///
/// </summary>
public static class AuthControllerExtensions
{
/// <summary>
///
/// </summary>
/// <param name="controller"></param>
/// <param name="policyName"></param>
/// <returns></returns>
public static async Task<bool> IsUserInPolicyAsync(this IAuthController controller, string policyName)
{
var result = await controller.AuthService.AuthorizeAsync(controller.User, policyName);
return result.Succeeded;
}
}

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using DigitalData.Core.API;
using EnvelopeGenerator.Application.Resources;
using Microsoft.AspNetCore.Localization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Localization;
using EnvelopeGenerator.Application.Resources;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Controller für die Verwaltung der Lokalisierung und Spracheinstellungen.
/// </summary>
[ApiExplorerSettings(IgnoreApi = true)]
[Route("api/[controller]")]
[ApiController]
public class LocalizationController : ControllerBase
{
private static readonly Guid L_KEY = Guid.NewGuid();
private readonly ILogger<LocalizationController> _logger;
private readonly IStringLocalizer<Resource> _mLocalizer;
private readonly IStringLocalizer<Resource> _localizer;
private readonly IMemoryCache _cache;
/// <summary>
/// Konstruktor für den <see cref="LocalizationController"/>.
/// </summary>
/// <param name="logger">Logger für die Protokollierung.</param>
/// <param name="localizer">Lokalisierungsdienst für Ressourcen.</param>
/// <param name="memoryCache">Speicher-Cache für die Zwischenspeicherung von Daten.</param>
/// <param name="_modelLocalizer">Lokalisierungsdienst für Modelle.</param>
public LocalizationController(
ILogger<LocalizationController> logger,
IStringLocalizer<Resource> localizer,
IMemoryCache memoryCache,
IStringLocalizer<Resource> _modelLocalizer)
{
_logger = logger;
_localizer = localizer;
_cache = memoryCache;
_mLocalizer = _modelLocalizer;
}
/// <summary>
/// Ruft alle lokalisierten Daten ab.
/// </summary>
/// <returns>Eine Liste aller lokalisierten Daten.</returns>
[HttpGet]
public IActionResult GetAll() => Ok(_cache.GetOrCreate(Language ?? string.Empty + L_KEY, _ => _mLocalizer.ToDictionary()));
/// <summary>
/// Ruft die aktuelle Sprache ab.
/// </summary>
/// <returns>Die aktuelle Sprache oder ein NotFound-Ergebnis, wenn keine Sprache gesetzt ist.</returns>
[HttpGet("lang")]
public IActionResult GetLanguage() => Language is null ? NotFound() : Ok(Language);
/// <summary>
/// Setzt die Sprache.
/// </summary>
/// <param name="language">Die zu setzende Sprache.</param>
/// <returns>Ein Ok-Ergebnis, wenn die Sprache erfolgreich gesetzt wurde, oder ein BadRequest-Ergebnis, wenn die Eingabe ungültig ist.</returns>
[HttpPost("lang")]
public IActionResult SetLanguage([FromQuery] string language)
{
if (string.IsNullOrEmpty(language))
return BadRequest();
Language = language;
return Ok();
}
/// <summary>
/// Löscht die aktuelle Sprache.
/// </summary>
/// <returns>Ein Ok-Ergebnis, wenn die Sprache erfolgreich gelöscht wurde.</returns>
[HttpDelete("lang")]
public IActionResult DeleteLanguage()
{
Language = null;
return Ok();
}
/// <summary>
/// Eigenschaft für die Verwaltung der aktuellen Sprache über Cookies.
/// </summary>
private string? Language
{
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);
}
}
}
}

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using DigitalData.Core.Abstraction.Application.DTO;
using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
using EnvelopeGenerator.Application.Common.Interfaces.Services;
using EnvelopeGenerator.Domain.Constants;
using EnvelopeGenerator.Server.Extensions;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Manages read-only envelope sharing flows.
/// </summary>
[Route("api/[controller]")]
[ApiController]
public class ReadOnlyController : ControllerBase
{
private readonly ILogger<ReadOnlyController> _logger;
private readonly IEnvelopeReceiverReadOnlyService _readOnlyService;
private readonly IEnvelopeMailService _mailService;
private readonly IEnvelopeHistoryService _historyService;
/// <summary>
/// Initializes a new instance of the <see cref="ReadOnlyController"/> class.
/// </summary>
public ReadOnlyController(ILogger<ReadOnlyController> logger, IEnvelopeReceiverReadOnlyService readOnlyService, IEnvelopeMailService mailService, IEnvelopeHistoryService historyService)
{
_logger = logger;
_readOnlyService = readOnlyService;
_mailService = mailService;
_historyService = historyService;
}
/// <summary>
/// Creates a new read-only receiver for the current envelope.
/// </summary>
/// <param name="createDto">Creation payload.</param>
[HttpPost]
[Authorize(Policy = AuthPolicy.Receiver)]
[Obsolete("Use MediatR")]
public async Task<IActionResult> CreateAsync([FromBody] EnvelopeReceiverReadOnlyCreateDto createDto)
{
var authReceiverMail = User.ReceiverMail();
if (authReceiverMail is null)
{
_logger.LogError("EmailAddress claim is not found in envelope-receiver-read-only creation process. Create DTO is:\n {dto}", JsonConvert.SerializeObject(createDto));
return Unauthorized();
}
var envelopeId = User.EnvelopeId();
createDto.AddedWho = authReceiverMail;
createDto.EnvelopeId = envelopeId;
var creationRes = await _readOnlyService.CreateAsync(createDto: createDto);
if (creationRes.IsFailed)
{
_logger.LogNotice(creationRes);
return StatusCode(StatusCodes.Status500InternalServerError);
}
var readRes = await _readOnlyService.ReadByIdAsync(creationRes.Data.Id);
if (readRes.IsFailed)
{
_logger.LogNotice(creationRes);
return StatusCode(StatusCodes.Status500InternalServerError);
}
var newReadOnly = readRes.Data;
return await _mailService.SendAsync(newReadOnly).ThenAsync<int, IActionResult>(SuccessAsync: async _ =>
{
var histRes = await _historyService.RecordAsync((int)createDto.EnvelopeId, createDto.AddedWho, EnvelopeStatus.EnvelopeShared);
if (histRes.IsFailed)
{
_logger.LogError("Although the envelope was sent as read-only, the EnvelopeShared history could not be saved. Create DTO:\n{createDto}", JsonConvert.SerializeObject(createDto));
_logger.LogNotice(histRes.Notices);
}
return Ok();
},
Fail: (msg, ntc) =>
{
_logger.LogNotice(ntc);
return StatusCode(StatusCodes.Status500InternalServerError);
});
}
}

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using MediatR;
using EnvelopeGenerator.Application.Receivers.Queries;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Controller für die Verwaltung von Empfängern.
/// </summary>
/// <remarks>
/// Dieser Controller bietet Endpunkte für das Abrufen von Empfängern basierend auf E-Mail-Adresse oder Signatur.
/// </remarks>
[Route("api/[controller]")]
[ApiController]
[Authorize]
public class ReceiverController : ControllerBase
{
private readonly IMediator _mediator;
/// <summary>
/// Initialisiert eine neue Instanz des <see cref="ReceiverController"/>-Controllers.
/// </summary>
/// <param name="mediator">Mediator für Anfragen.</param>
public ReceiverController(IMediator mediator)
{
_mediator = mediator;
}
/// <summary>
/// Ruft eine Liste von Empfängern ab, basierend auf den angegebenen Abfrageparametern.
/// </summary>
/// <param name="receiver">Die Abfrageparameter, einschließlich E-Mail-Adresse und Signatur.</param>
/// <returns>Eine Liste von Empfängern oder ein Fehlerstatus.</returns>
[HttpGet]
[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
public async Task<IActionResult> Get([FromQuery] ReadReceiverQuery? receiver = null, [FromQuery] bool onlyEmailAddress = false)
{
var result = await _mediator.Send(receiver ?? new ReadReceiverQuery());
if (result is null)
return NotFound();
else if (onlyEmailAddress)
return Ok(result.Select(r => r.EmailAddress).ToList());
else
return Ok(result);
}
}

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using EnvelopeGenerator.Server.Extensions;
using EnvelopeGenerator.Application.Common.Dto;
using EnvelopeGenerator.Application.Common.Extensions;
using EnvelopeGenerator.Application.Documents.Queries;
using EnvelopeGenerator.Domain.Constants;
using MediatR;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
///
/// </summary>
[Authorize(Policy = AuthPolicy.Receiver)]
[ApiController]
[Route("api/[controller]")]
public class SignatureController : ControllerBase
{
private readonly IMediator _mediator;
/// <summary>
/// Initializes a new instance of <see cref="SignatureController"/>.
/// </summary>
public SignatureController(IMediator mediator)
{
_mediator = mediator;
}
//TODO: update to use signature query
/// <summary>
///
/// </summary>
/// <param name="envelopeKey"></param>
/// <param name="cancel"></param>
/// <returns></returns>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpGet("{envelopeKey}")]
public async Task<IActionResult> Get(string envelopeKey, CancellationToken cancel)
{
int envelopeId = User.EnvelopeId();
int receiverId = User.ReceiverId();
var doc = await _mediator.Send(new ReadDocumentQuery() { EnvelopeId = envelopeId }, cancel);
if (doc.Elements is not IEnumerable<DocReceiverElementDto> docSignatures)
return NotFound("Document is empty.");
var rcvSignatures = docSignatures.Where(s => s.ReceiverId == receiverId).ToList();
if (rcvSignatures is null)
return NotFound("No signatures found for the current receiver.");
else
return Ok(rcvSignatures);
}
}

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using DigitalData.Core.Abstraction.Application.DTO;
using EnvelopeGenerator.Application.Common.Extensions;
using EnvelopeGenerator.Application.Common.Interfaces.Services;
using EnvelopeGenerator.Application.Resources;
using EnvelopeGenerator.Domain.Constants;
using EnvelopeGenerator.Server.Models;
using Ganss.Xss;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Localization;
using Microsoft.Extensions.Options;
namespace EnvelopeGenerator.Server.Controllers;
/// <summary>
/// Exposes endpoints for registering and managing two-factor authentication for envelope receivers.
/// </summary>
[ApiController]
[Route("api/tfa")]
public class TfaRegistrationController : ControllerBase
{
private readonly ILogger<TfaRegistrationController> _logger;
private readonly IEnvelopeReceiverService _envelopeReceiverService;
private readonly IAuthenticator _authenticator;
private readonly IReceiverService _receiverService;
private readonly TFARegParams _parameters;
private readonly IStringLocalizer<Resource> _localizer;
/// <summary>
/// Initializes a new instance of the <see cref="TfaRegistrationController"/> class.
/// </summary>
public TfaRegistrationController(
ILogger<TfaRegistrationController> logger,
IEnvelopeReceiverService envelopeReceiverService,
IAuthenticator authenticator,
IReceiverService receiverService,
IOptions<TFARegParams> tfaRegParamsOptions,
IStringLocalizer<Resource> localizer)
{
_logger = logger;
_envelopeReceiverService = envelopeReceiverService;
_authenticator = authenticator;
_receiverService = receiverService;
_parameters = tfaRegParamsOptions.Value;
_localizer = localizer;
}
/// <summary>
/// Generates registration metadata (QR code and deadline) for a receiver.
/// </summary>
/// <param name="envelopeReceiverId">Encoded envelope receiver id.</param>
[Authorize]
[HttpGet("{envelopeReceiverId}")]
public async Task<IActionResult> RegisterAsync(string envelopeReceiverId)
{
try
{
var (uuid, signature) = envelopeReceiverId.DecodeEnvelopeReceiverId();
if (uuid is null || signature is null)
{
_logger.LogEnvelopeError(uuid: uuid, signature: signature, message: _localizer.WrongEnvelopeReceiverId());
return Unauthorized(new { message = _localizer.WrongEnvelopeReceiverId() });
}
var secretResult = await _envelopeReceiverService.ReadWithSecretByUuidSignatureAsync(uuid: uuid, signature: signature);
if (secretResult.IsFailed)
{
_logger.LogNotice(secretResult.Notices);
return NotFound(new { message = _localizer.WrongEnvelopeReceiverId() });
}
var envelopeReceiver = secretResult.Data;
if (!envelopeReceiver.Envelope!.TFAEnabled)
return Unauthorized(new { message = _localizer.WrongAccessCode() });
var receiver = envelopeReceiver.Receiver;
receiver!.TotpSecretkey = _authenticator.GenerateTotpSecretKey();
await _receiverService.UpdateAsync(receiver);
var totpQr64 = _authenticator.GenerateTotpQrCode(userEmail: receiver.EmailAddress, secretKey: receiver.TotpSecretkey).ToBase64String();
if (receiver.TfaRegDeadline is null)
{
receiver.TfaRegDeadline = _parameters.Deadline;
await _receiverService.UpdateAsync(receiver);
}
else if (receiver.TfaRegDeadline <= DateTime.Now)
{
return StatusCode(StatusCodes.Status410Gone, new { message = _localizer.WrongAccessCode() });
}
return Ok(new
{
envelopeReceiver.EnvelopeId,
envelopeReceiver.Envelope!.Uuid,
envelopeReceiver.Receiver!.Signature,
receiver.TfaRegDeadline,
TotpQR64 = totpQr64
});
}
catch (Exception ex)
{
_logger.LogEnvelopeError(envelopeReceiverId: envelopeReceiverId, exception: ex, message: _localizer.WrongEnvelopeReceiverId());
return StatusCode(StatusCodes.Status500InternalServerError, new { message = _localizer.UnexpectedError() });
}
}
/// <summary>
/// Logs out the envelope receiver from cookie authentication.
/// </summary>
[Authorize(Policy = AuthPolicy.Receiver)]
[HttpPost("auth/logout")]
public async Task<IActionResult> LogOutAsync()
{
try
{
await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
return Ok();
}
catch (Exception ex)
{
_logger.LogError(ex, "{message}", ex.Message);
return StatusCode(StatusCodes.Status500InternalServerError, new { message = _localizer.UnexpectedError() });
}
}
}

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using EnvelopeGenerator.Server.Models;
using Microsoft.OpenApi.Any;
using Microsoft.OpenApi.Models;
using Swashbuckle.AspNetCore.SwaggerGen;
namespace EnvelopeGenerator.Server.Documentation;
/// <summary>
///
/// </summary>
public sealed class AuthProxyDocumentFilter : IDocumentFilter
{
/// <summary>
///
/// </summary>
/// <param name="swaggerDoc"></param>
/// <param name="context"></param>
public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
AddLoginOperation(swaggerDoc, context);
AddEnvelopeReceiverLoginOperation(swaggerDoc, context);
}
private static void AddLoginOperation(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
const string path = "/api/auth";
var loginSchema = context.SchemaGenerator.GenerateSchema(typeof(Login), context.SchemaRepository);
var loginExample = new OpenApiObject
{
["password"] = new OpenApiString(""),
["username"] = new OpenApiString("")
};
var operation = new OpenApiOperation
{
Summary = "Proxy login (auth-hub)",
Description = "Proxies the request to the auth service. Add query parameter `cookie=true|false`.",
Tags = [new() { Name = "Auth" }],
Parameters =
{
new OpenApiParameter
{
Name = "cookie",
In = ParameterLocation.Query,
Required = false,
Schema = new OpenApiSchema { Type = "boolean", Default = new OpenApiBoolean(true) },
Example = new OpenApiBoolean(true),
Description = "If true, auth service sets the auth cookie."
}
},
RequestBody = new OpenApiRequestBody
{
Required = true,
Content =
{
["application/json"] = new OpenApiMediaType { Schema = loginSchema, Example = loginExample },
["multipart/form-data"] = new OpenApiMediaType { Schema = loginSchema, Example = loginExample }
}
},
Responses =
{
["200"] = new OpenApiResponse { Description = "OK (proxied response)" },
["401"] = new OpenApiResponse { Description = "Unauthorized" }
}
};
swaggerDoc.Paths[path] = new OpenApiPathItem
{
Operations =
{
[OperationType.Post] = operation
}
};
}
private static void AddEnvelopeReceiverLoginOperation(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
const string path = "/api/Auth/envelope-receiver/{key}";
var bodySchema = context.SchemaGenerator.GenerateSchema(typeof(EnvelopeReceiverLogin), context.SchemaRepository);
var operation = new OpenApiOperation
{
Summary = "Envelope receiver login (auth-hub proxy)",
Description = "Proxies the envelope receiver login to the auth service. " +
"The `cookie` query parameter is always forwarded as `true` so the auth service sets the per-envelope cookie automatically.",
Tags = [new() { Name = "Auth" }],
Parameters =
{
new OpenApiParameter
{
Name = "key",
In = ParameterLocation.Path,
Required = true,
Schema = new OpenApiSchema { Type = "string" },
Description = "The unique envelope receiver key."
}
},
RequestBody = new OpenApiRequestBody
{
Required = false,
Content =
{
["multipart/form-data"] = new OpenApiMediaType { Schema = bodySchema }
}
},
Responses =
{
["200"] = new OpenApiResponse { Description = "OK per-envelope cookie set by auth service." },
["401"] = new OpenApiResponse { Description = "Unauthorized invalid or missing access code." }
}
};
swaggerDoc.Paths[path] = new OpenApiPathItem
{
Operations =
{
[OperationType.Post] = operation
}
};
}
}

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFrameworks>net8.0</TargetFrameworks>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<GenerateDocumentationFile>true</GenerateDocumentationFile>
<PackageId>EnvelopeGenerator.Server</PackageId>
<Title></Title>
<Authors>Digital Data GmbH</Authors>
<Company>Digital Data GmbH</Company>
<Product>EnvelopeGenerator.Server</Product>
<Version>1.0.1-beta</Version>
<FileVersion>1.0.1.0</FileVersion>
<AssemblyVersion>1.0.1.0</AssemblyVersion>
<Copyright>Copyright © 2026 Digital Data GmbH. All rights reserved.</Copyright>
<DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\EnvelopeGenerator.Server.Client\EnvelopeGenerator.Server.Client.csproj" />
<ProjectReference Include="..\..\EnvelopeGenerator.Application\EnvelopeGenerator.Application.csproj" />
<ProjectReference Include="..\..\EnvelopeGenerator.Domain\EnvelopeGenerator.Domain.csproj" />
<ProjectReference Include="..\..\EnvelopeGenerator.Infrastructure\EnvelopeGenerator.Infrastructure.csproj" />
<ProjectReference Include="..\..\EnvelopeGenerator.PdfEditor\EnvelopeGenerator.PdfEditor.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="8.0.22" />
<PackageReference Include="DevExpress.Blazor" Version="25.2.3" />
<PackageReference Include="DevExpress.Blazor.PdfViewer" Version="25.2.3" />
<PackageReference Include="DevExpress.Blazor.Reporting.Viewer" Version="25.2.3" />
<!-- API Packages from EnvelopeGenerator.Server -->
<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.11" />
<PackageReference Include="AspNetCore.Scalar" Version="1.1.8" />
<PackageReference Include="DigitalData.Auth.Claims" Version="1.0.3" />
<PackageReference Include="DigitalData.Auth.Client" Version="1.3.7" />
<PackageReference Include="DigitalData.Core.API" Version="2.2.1" />
<PackageReference Include="HtmlSanitizer" Version="9.0.892" />
<PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="8.0.11" />
<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.11" />
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.17" />
<PackageReference Include="Microsoft.Identity.Client" Version="4.82.1" />
<PackageReference Include="NLog" Version="5.2.5" />
<PackageReference Include="NLog.Web.AspNetCore" Version="5.3.0" />
<PackageReference Include="PDFsharp" Version="6.2.4" />
<PackageReference Include="Scalar.AspNetCore" Version="2.2.1" />
<PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="8.1.1" />
<PackageReference Include="DigitalData.EmailProfilerDispatcher.Abstraction" Version="3.2.0" />
<PackageReference Include="System.DirectoryServices" Version="8.0.0" />
<PackageReference Include="System.DirectoryServices.AccountManagement" Version="8.0.1" />
<PackageReference Include="System.DirectoryServices.Protocols" Version="8.0.1" />
<PackageReference Include="Yarp.ReverseProxy" Version="2.3.0" />
</ItemGroup>
<ItemGroup>
<Content Update="wwwroot\docs\privacy-policy.en-US.html">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
<Content Update="wwwroot\docs\privacy-policy.fr-FR.html">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Content>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Resources\Invoice.pdf" />
</ItemGroup>
</Project>

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using DigitalData.Auth.Claims;
using Microsoft.IdentityModel.JsonWebTokens;
using System.Security.Claims;
namespace EnvelopeGenerator.Server.Extensions;
/// <summary>
/// Provides helper methods for working with envelope-specific authentication claims.
/// </summary>
public static class ReceiverClaimExtensions
{
/// <summary>
///
/// </summary>
/// <param name="user"></param>
/// <param name="claimType"></param>
/// <returns></returns>
/// <exception cref="InvalidOperationException"></exception>
private static string GetRequiredClaimValue(this ClaimsPrincipal user, string claimType)
{
var value = user.FindFirstValue(claimType);
if (value is not null)
{
return value;
}
var identity = user.Identity;
var principalName = identity?.Name ?? "(anonymous)";
var authType = identity?.AuthenticationType ?? "(none)";
var availableClaims = string.Join(", ", user.Claims.Select(c => $"{c.Type}={c.Value}"));
var message = $"Required claim '{claimType}' is missing for user '{principalName}' (auth: {authType}). Available claims: [{availableClaims}].";
throw new InvalidOperationException(message);
}
private static string GetRequiredClaimValue(this ClaimsPrincipal user, params string[] claimTypes)
{
foreach (var claimType in claimTypes.Where(t => !string.IsNullOrWhiteSpace(t)).Distinct())
{
var value = user.FindFirstValue(claimType);
if (!string.IsNullOrWhiteSpace(value))
return value;
}
var identity = user.Identity;
var principalName = identity?.Name ?? "(anonymous)";
var authType = identity?.AuthenticationType ?? "(none)";
var availableClaims = string.Join(", ", user.Claims.Select(c => $"{c.Type}={c.Value}"));
var message = $"Required claim(s) '{string.Join("', '", claimTypes)}' are missing for user '{principalName}' (auth: {authType}). Available claims: [{availableClaims}].";
throw new InvalidOperationException(message);
}
/// <summary>
/// Gets the authenticated envelope UUID from the claims.
/// </summary>
public static string EnvelopeUuid(this ClaimsPrincipal user)
=> user.GetRequiredClaimValue(EnvelopeClaimNames.EnvelopeUuid);
/// <summary>
/// Gets the authenticated receiver signature from the claims.
/// </summary>
public static string ReceiverSignature(this ClaimsPrincipal user)
=> user.GetRequiredClaimValue(EnvelopeClaimNames.ReceiverSignature);
/// <summary>
/// Gets the authenticated receiver email address from the claims.
/// </summary>
public static string ReceiverMail(this ClaimsPrincipal user)
=> user.GetRequiredClaimValue(JwtRegisteredClaimNames.Email);
/// <summary>
/// Gets the authenticated envelope identifier from the claims.
/// </summary>
public static int EnvelopeId(this ClaimsPrincipal user)
{
var envIdStr = user.GetRequiredClaimValue(EnvelopeClaimNames.EnvelopeId);
if (int.TryParse(envIdStr, out var envId))
return envId;
else
throw new InvalidOperationException($"Claim '{EnvelopeClaimNames.EnvelopeId}' is not a valid integer.");
}
/// <summary>
/// Gets the authenticated receiver identifier from the claims.
/// </summary>
/// <param name="user"></param>
/// <returns></returns>
/// <exception cref="InvalidOperationException"></exception>
public static int ReceiverId(this ClaimsPrincipal user)
{
var rcvIdStr = user.GetRequiredClaimValue(EnvelopeClaimNames.ReceiverId);
if (int.TryParse(rcvIdStr, out var rcvId))
return rcvId;
else
throw new InvalidOperationException($"Claim '{EnvelopeClaimNames.ReceiverId}' is not a valid integer.");
}
}

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using System.Security.Claims;
namespace EnvelopeGenerator.Server.Extensions
{
/// <summary>
/// Provides extension methods for extracting user information from a <see cref="ClaimsPrincipal"/>.
/// </summary>
public static class SenderClaimExtensions
{
private static string GetRequiredClaimOfSender(this ClaimsPrincipal user, string claimType)
{
var value = user.FindFirstValue(claimType);
if (value is not null)
{
return value;
}
var identity = user.Identity;
var principalName = identity?.Name ?? "(anonymous)";
var authType = identity?.AuthenticationType ?? "(none)";
var availableClaims = string.Join(", ", user.Claims.Select(c => $"{c.Type}={c.Value}"));
var message = $"Required claim '{claimType}' is missing for user '{principalName}' (auth: {authType}). Available claims: [{availableClaims}].";
throw new InvalidOperationException(message);
}
private static string GetRequiredClaimOfSender(this ClaimsPrincipal user, params string[] claimTypes)
{
string? value = null;
foreach (var claimType in claimTypes)
{
value = user.FindFirstValue(claimType);
if (value is not null)
return value;
}
var identity = user.Identity;
var principalName = identity?.Name ?? "(anonymous)";
var authType = identity?.AuthenticationType ?? "(none)";
var availableClaims = string.Join(", ", user.Claims.Select(c => $"{c.Type}={c.Value}"));
var message = $"Required claim among [{string.Join(", ", claimTypes)}] is missing for user '{principalName}' (auth: {authType}). Available claims: [{availableClaims}].";
throw new InvalidOperationException(message);
}
/// <summary>
/// Retrieves the user's ID from the claims. Throws an exception if the ID is missing or invalid.
/// </summary>
/// <param name="user">The <see cref="ClaimsPrincipal"/> representing the user.</param>
/// <returns>The user's ID as an integer.</returns>
/// <exception cref="InvalidOperationException">Thrown if the user ID claim is missing or invalid.</exception>
public static int GetId(this ClaimsPrincipal user)
{
var idValue = user.GetRequiredClaimOfSender(ClaimTypes.NameIdentifier, "sub");
if (!int.TryParse(idValue, out var result))
{
throw new InvalidOperationException("User ID claim is missing or invalid. This may indicate a misconfigured or forged JWT token.");
}
return result;
}
/// <summary>
/// Retrieves the username from the claims.
/// </summary>
/// <param name="user">The <see cref="ClaimsPrincipal"/> representing the user.</param>
/// <returns>The username as a string.</returns>
public static string GetUsername(this ClaimsPrincipal user)
=> user.GetRequiredClaimOfSender(ClaimTypes.Name);
/// <summary>
/// Retrieves the user's surname (last name) from the claims.
/// </summary>
/// <param name="user">The <see cref="ClaimsPrincipal"/> representing the user.</param>
/// <returns>The surname as a string.</returns>
public static string GetName(this ClaimsPrincipal user)
=> user.GetRequiredClaimOfSender(ClaimTypes.Surname);
/// <summary>
/// Retrieves the user's given name (first name) from the claims.
/// </summary>
/// <param name="user">The <see cref="ClaimsPrincipal"/> representing the user.</param>
/// <returns>The given name as a string.</returns>
public static string GetPrename(this ClaimsPrincipal user)
=> user.GetRequiredClaimOfSender(ClaimTypes.GivenName);
/// <summary>
/// Retrieves the user's email address from the claims.
/// </summary>
/// <param name="user">The <see cref="ClaimsPrincipal"/> representing the user.</param>
/// <returns>The email address as a string.</returns>
public static string GetEmail(this ClaimsPrincipal user)
=> user.GetRequiredClaimOfSender(ClaimTypes.Email);
}
}

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namespace EnvelopeGenerator.Server.Handlers;
/// <summary>
/// A <see cref="DelegatingHandler"/> that forwards the incoming HTTP request's
/// <c>Cookie</c> header to all outgoing <see cref="System.Net.Http.HttpClient"/> calls
/// made by Blazor Server components.
///
/// Problem it solves:
/// Blazor Server runs on the server process. When a component calls an API endpoint
/// that requires cookie-based JWT authentication (AuthScheme.Sender), the HttpClient
/// does not automatically include the browser's cookies — those only travel with
/// browser-initiated requests. This handler copies the <c>Cookie</c> header from the
/// current <see cref="IHttpContextAccessor.HttpContext"/> into every outgoing request
/// so that the API's JwtBearer <c>OnMessageReceived</c> callback can extract the token.
///
/// Thread safety:
/// The handler is registered as Transient and is resolved per-request by the
/// IHttpClientFactory pipeline, so there is no shared state between requests.
/// </summary>
public class SenderAuthCookieHandler(IHttpContextAccessor httpContextAccessor) : DelegatingHandler
{
protected override Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
var cookieHeader = httpContextAccessor.HttpContext?.Request.Headers["Cookie"].ToString();
if (!string.IsNullOrWhiteSpace(cookieHeader))
request.Headers.TryAddWithoutValidation("Cookie", cookieHeader);
return base.SendAsync(request, cancellationToken);
}
}

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pipeline {
agent any
stages {
stage('Build') {
steps {
sh 'dotnet build'
}
}
}
}

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namespace EnvelopeGenerator.Server.Middleware;
using DigitalData.Core.Exceptions;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using System.Net;
using System.Text.Json;
/// <summary>
/// Middleware for handling exceptions globally in the application.
/// Captures exceptions thrown during the request pipeline execution,
/// logs them, and returns an appropriate HTTP response with a JSON error message.
/// </summary>
public class ExceptionHandlingMiddleware
{
private readonly RequestDelegate _next;
private readonly ILogger<ExceptionHandlingMiddleware> _logger;
/// <summary>
/// Initializes a new instance of the <see cref="ExceptionHandlingMiddleware"/> class.
/// </summary>
/// <param name="next">The next middleware in the request pipeline.</param>
/// <param name="logger">The logger instance for logging exceptions.</param>
public ExceptionHandlingMiddleware(RequestDelegate next, ILogger<ExceptionHandlingMiddleware> logger)
{
_next = next;
_logger = logger;
}
/// <summary>
/// Invokes the middleware to handle the HTTP request.
/// </summary>
/// <param name="context">The HTTP context of the current request.</param>
/// <returns>A task that represents the asynchronous operation.</returns>
public async Task InvokeAsync(HttpContext context)
{
try
{
await _next(context); // Continue down the pipeline
}
catch (Exception ex)
{
await HandleExceptionAsync(context, ex, _logger);
}
}
/// <summary>
/// Handles exceptions by logging them and writing an appropriate JSON response.
/// </summary>
/// <param name="context">The HTTP context of the current request.</param>
/// <param name="exception">The exception that occurred.</param>
/// <param name="logger">The logger instance for logging the exception.</param>
/// <returns>A task that represents the asynchronous operation.</returns>
private static async Task HandleExceptionAsync(HttpContext context, Exception exception, ILogger logger)
{
context.Response.ContentType = "application/json";
string message;
switch (exception)
{
case BadRequestException badRequestEx:
context.Response.StatusCode = (int)HttpStatusCode.BadRequest;
message = badRequestEx.Message;
break;
case NotFoundException notFoundEx:
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
message = notFoundEx.Message;
break;
default:
logger.LogError(exception, "Unhandled exception occurred.");
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
message = "An unexpected error occurred.";
break;
}
await context.Response.WriteAsync(JsonSerializer.Serialize(new
{
message
}));
}
}

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namespace EnvelopeGenerator.Server.Models;
[Obsolete("Use auth DTO")]
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 HasAuthenticatorCode => AuthenticatorCode is not null;
public bool HasMulti => new[] { HasAccessCode, HasSmsCode, HasAuthenticatorCode }.Count(state => state) > 1;
public bool HasNone => !(HasAccessCode || HasSmsCode || HasAuthenticatorCode);
}

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namespace EnvelopeGenerator.Server.Models;
/// <summary>
/// Represents the keys and default values used for authentication token handling
/// within the Envelope Generator Server.
/// </summary>
public class AuthTokenKeys
{
/// <summary>
/// Gets the name of the cookie used to store the authentication token.
/// </summary>
public string Cookie { get; init; } = "AuthToken";
/// <summary>
/// Gets the name of the query string parameter used to pass the authentication token.
/// </summary>
public string QueryString { get; init; } = "AuthToken";
/// <summary>
/// Gets the expected issuer value for the authentication token.
/// </summary>
public string Issuer { get; init; } = "auth.digitaldata.works";
/// <summary>
/// Gets the expected audience value for the authentication token.
/// </summary>
public string Audience { get; init; } = "sign-flow.digitaldata.works";
}

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namespace EnvelopeGenerator.Server.Models;
/// <summary>
/// Represents the database connection string for dependency injection.
/// </summary>
public class ConnectionString
{
/// <summary>
/// The database connection string value.
/// </summary>
public string Value { get; set; } = string.Empty;
}

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namespace EnvelopeGenerator.Server.Models
{
/// <summary>
/// Represents a hyperlink for contact purposes with various HTML attributes.
/// </summary>
public class ContactLink
{
/// <summary>
/// Gets or sets the label of the hyperlink.
/// </summary>
public string Label { get; init; } = "Contact";
/// <summary>
/// Gets or sets the URL that the hyperlink points to.
/// </summary>
public string Href { get; set; } = string.Empty;
/// <summary>
/// Gets or sets the target where the hyperlink should open.
/// Commonly used values are "_blank", "_self", "_parent", "_top".
/// </summary>
public string Target { get; set; } = "_blank";
/// <summary>
/// Gets or sets the relationship of the linked URL as space-separated link types.
/// Examples include "nofollow", "noopener", "noreferrer".
/// </summary>
public string Rel { get; set; } = string.Empty;
/// <summary>
/// Gets or sets the filename that should be downloaded when clicking the hyperlink.
/// This attribute will only have an effect if the href attribute is set.
/// </summary>
public string Download { get; set; } = string.Empty;
/// <summary>
/// Gets or sets the language of the linked resource. Useful when linking to
/// content in another language.
/// </summary>
public string HrefLang { get; set; } = "en";
/// <summary>
/// Gets or sets the MIME type of the linked URL. Helps browsers to handle
/// the type correctly when the link is clicked.
/// </summary>
public string Type { get; set; } = string.Empty;
/// <summary>
/// Gets or sets additional information about the hyperlink, typically viewed
/// as a tooltip when the mouse hovers over the link.
/// </summary>
public string Title { get; set; } = string.Empty;
/// <summary>
/// Gets or sets an identifier for the hyperlink, unique within the HTML document.
/// </summary>
public string Id { get; set; } = string.Empty;
}
}

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using System.Globalization;
namespace EnvelopeGenerator.Server.Models;
public class Culture
{
private string _language = string.Empty;
public string Language { get => _language;
init {
_language = value;
Info = new(value);
}
}
public string FIClass { get; init; } = string.Empty;
public CultureInfo? Info { get; init; }
}

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namespace EnvelopeGenerator.Server.Models;
public class Cultures : List<Culture>
{
public IEnumerable<string> Languages => this.Select(c => c.Language);
public IEnumerable<string> FIClasses => this.Select(c => c.FIClass);
public Culture Default => this.First();
public Culture? this[string? language] => language is null ? null : this.Where(c => c.Language == language).FirstOrDefault();
}

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namespace EnvelopeGenerator.Server.Models;
public class CustomImages : Dictionary<string, Image>
{
public new Image this[string key] => TryGetValue(key, out var img) && img is not null ? img : new();
}

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namespace EnvelopeGenerator.Server.Models;
/// <summary>
/// Request body for the envelope-receiver login endpoint.
/// </summary>
/// <param name="AccessCode">The access code sent to the receiver.</param>
public record EnvelopeReceiverLogin(string? AccessCode = null);

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namespace EnvelopeGenerator.Server.Models;
public class ErrorViewModel
{
public string Title { get; init; } = "404";
public string Subtitle { get; init; } = "Hmmm...";
public string Body { get; init; } = "It looks like one of the developers fell asleep";
}

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namespace EnvelopeGenerator.Server.Models;
public class Image
{
public string Src { get; init; } = string.Empty;
public Dictionary<string, string> Classes { get; init; } = new();
public string GetClassIn(string page) => Classes.TryGetValue(page, out var cls) && cls is not null ? cls : string.Empty;
}

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using System.ComponentModel.DataAnnotations;
namespace EnvelopeGenerator.Server.Models;
/// <summary>
/// Repräsentiert ein Login-Modell mit erforderlichem Passwort und optionaler ID und Benutzername.
/// </summary>
/// <param name="Password">Das erforderliche Passwort für das Login.</param>
/// <param name="UserId">Die optionale ID des Benutzers.</param>
/// <param name="Username">Der optionale Benutzername.</param>
public record Login([Required] string Password, int? UserId = null, string? Username = null)
{
}

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