[desktop] Tauri HTTP interceptor: content-type support

desktop/angular/projects/safing/portmaster-api/src/lib/module.ts

@@ -8,18 +8,14 @@ import { PortapiService, PORTMASTER_HTTP_API_ENDPOINT, PORTMASTER_WS_API_ENDPOIN
 import { SPNService } from "./spn.service";
 import { WebsocketService } from "./websocket.service";
 import { provideHttpClient, withInterceptors } from '@angular/common/http';
-import { TauriHttpInterceptor } from "./tauri-http-interceptor";
+import { TauriHttpInterceptor } from "./platform-specific/tauri/tauri-http-interceptor";
+import { IsTauriEnvironment } from "./platform-specific/utils";
 
 export interface ModuleConfig {
   httpAPI?: string;
   websocketAPI?: string;
 }
 
-// Simple function to detect if the app is running in a Tauri environment
-export function IsTauriEnvironment(): boolean {
-  return '__TAURI__' in window;
-}
-
 // Factory function to provide the appropriate HTTP client configuration
 //
 // This function determines the appropriate HTTP client configuration based on the runtime environment.

desktop/angular/projects/safing/portmaster-api/src/lib/platform-specific/tauri/tauri-http-interceptor.ts

@@ -64,12 +64,25 @@ export function TauriHttpInterceptor(req: HttpRequest<unknown>, next: HttpHandle
             };
                 
             switch (responseType) {
-                case 'arraybuffer':
-                    return from(response.arrayBuffer()).pipe(map(createResponse));                    
-                case 'blob':
-                    return from(response.blob()).pipe(map(createResponse));                    
                 case 'text':
-                    return from(response.text()).pipe(map(createResponse));                    
+                    return from(response.text()).pipe(map(createResponse));
+                case 'arraybuffer':
+                    return from(response.arrayBuffer()).pipe(map(createResponse));
+                case 'blob':
+                    return from(response.blob()).pipe(
+                        map(blob => {
+                            // Get content-type from response headers
+                            const contentType = response.headers.get('content-type') || '';
+                            // Create a new blob with the proper MIME type
+                            if (contentType && (!blob.type || blob.type === 'application/octet-stream')) {
+                                // Create new blob with the correct MIME type
+                                const typedBlob = new Blob([blob], { type: contentType });
+                                return createResponse(typedBlob);
+                            }
+                            
+                            return createResponse(blob);
+                        })
+                    );
                 case 'json':
                 default:
                     return from(response.text()).pipe(

desktop/angular/projects/safing/portmaster-api/src/lib/platform-specific/utils.ts

@@ -0,0 +1,4 @@
+// Simple function to detect if the app is running in a Tauri environment
+export function IsTauriEnvironment(): boolean {
+  return '__TAURI__' in window;
+}