Force contentType from the headers to be .png, .jpeg or .jpg

src/Infrastructure/AzureBlob/AzureBlobStorageService.cs

@@ -1,6 +1,3 @@
-using System;
-using System.IO;
-using System.Threading.Tasks;
 using Azure;
 using Azure.Storage.Blobs;
 using Azure.Storage.Blobs.Models;
@@ -16,7 +13,6 @@ public class AzureBlobStorageService : IAzureBlobStorageService
     private readonly ILogger<AzureBlobStorageService> _logger;
     private readonly long _maxUploadSize = 10 * 1024 * 1024;  // 10 MB in bytes
 
-
     public AzureBlobStorageService(IConfiguration configuration, ILogger<AzureBlobStorageService> logger)
     {
         _logger = logger;
@@ -47,6 +43,13 @@ public class AzureBlobStorageService : IAzureBlobStorageService
             throw new InvalidOperationException($"Blob storage: File size exceeds the maximum allowed size of {_maxUploadSize} bytes.");
         }
         
+        // Validate content type
+        if (!ContentTypes.IsAllowed(contentType))
+        {
+            _logger.LogInformation($"Blob storage: Unsupported file type {contentType}. Only PNG and JPEG are allowed.");
+            throw new InvalidOperationException("Unsupported file type. Only PNG and JPEG are allowed.");
+        }
+        
         try
         {
             // Get a reference to a container