chore: image moderation

Author: eugbyte

src/Evently.Server/Common/Domains/Interfaces/IObjectStorageService.cs

@@ -10,5 +10,5 @@ public interface IObjectStorageService {
 	Task<Uri> GetFileUri(string containerName, string fileName);
 	Task<BinaryData> GetFile(string containerName, string fileName);
 	Task<bool> IsFileExists(string containerName, string fileName);
-	Task<bool> IsContentSafe(BinaryData binaryData);
+	Task<bool> PassesContentModeration(BinaryData binaryData);
 }

src/Evently.Server/Evently.Server.csproj

@@ -12,7 +12,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Azure.AI.ContentSafety" Version="1.0.0" />
+        <PackageReference Include="Azure.AI.ContentSafety" Version="1.0.0"/>
         <PackageReference Include="Azure.Storage.Blobs" Version="12.25.0"/>
         <PackageReference Include="FluentValidation" Version="12.0.0"/>
         <PackageReference Include="HtmlRenderer.PdfSharp" Version="1.5.0.6"/>

src/Evently.Server/Features/Files/Services/ObjectStorageService.cs

@@ -13,9 +13,9 @@ public sealed class ObjectStorageService(IOptions<Settings> settings, ILogger<Ob
 	private readonly BlobServiceClient _blobServiceClient =
 		new(settings.Value.StorageAccount.AzureStorageConnectionString);
 	private readonly ContentSafetyClient _contentSafetyClient = new(
-		endpoint: new Uri(settings.Value.AzureAiFoundry.ContentSafetyKey),
-		credential: new AzureKeyCredential(settings.Value.AzureAiFoundry.ContentSafetyEndpoint));
-	
+		endpoint: new Uri(settings.Value.AzureAiFoundry.ContentSafetyEndpoint),
+		credential: new AzureKeyCredential(settings.Value.AzureAiFoundry.ContentSafetyKey));
+
 	public async Task<Uri> UploadFile(string containerName, string fileName, BinaryData binaryData,
 		string mimeType = "application/octet-stream") {
 		BlobContainerClient containerClient = _blobServiceClient.GetBlobContainerClient(containerName);
@@ -70,7 +70,7 @@ public async Task<BinaryData> GetFile(string containerName, string fileName) {
 		return data;
 	}
 
-	public async Task<bool> IsContentSafe(BinaryData binaryData) {
+	public async Task<bool> PassesContentModeration(BinaryData binaryData) {
 		ContentSafetyImageData image = new(binaryData);
 		AnalyzeImageOptions request = new(image);
 		Response<AnalyzeImageResult> response;
@@ -80,11 +80,12 @@ public async Task<bool> IsContentSafe(BinaryData binaryData) {
 			Console.WriteLine("Analyze image failed.\nStatus code: {0}, Error code: {1}, Error message: {2}", ex.Status, ex.ErrorCode, ex.Message);
 			throw;
 		}
-		
-		AnalyzeImageResult value = response.Value;
-		if (value.CategoriesAnalysis.Count == 0) {
-			return false;
-		}
-		return value.CategoriesAnalysis[0].Severity == 0;
+
+		AnalyzeImageResult result = response.Value;
+		int? score = result.CategoriesAnalysis
+			             .Select(v => v.Severity)
+			             .Aggregate((a, b) => a + b)
+		             ?? 0;
+		return result.CategoriesAnalysis.Count != 0 && score == 0;
 	}
 }

src/Evently.Server/Features/Gatherings/Controllers/GatheringsController.cs

@@ -115,6 +115,10 @@ public async Task<ActionResult<Gathering>> DeleteGathering(long gatheringId) {
 	private async Task<Uri> UploadCoverImage(long gatheringId, IFormFile coverImg) {
 		string fileName = $"gatherings/{gatheringId}/cover-image{Path.GetExtension(coverImg.FileName)}";
 		BinaryData binaryData = await coverImg.ToBinaryData();
+		bool isContentSafe = await objectStorageService.PassesContentModeration(binaryData);
+		if (!isContentSafe) {
+			return new Uri(string.Empty, UriKind.RelativeOrAbsolute);
+		}
 		return await objectStorageService.UploadFile(_containerName,
 			fileName,
 			binaryData,

src/evently.client/src/lib/services/gathering-service.ts

@@ -75,7 +75,11 @@ function toFormData(gatheringDto: GatheringReqDto, coverImg?: File | null): Form
 			formData.set(key, value);
 		}
 	}
+
 	formData.delete("gatheringCategoryDetails");
+	if (gatheringDto.gatheringCategoryDetails.length === 0) {
+		formData.set("gatheringCategoryDetails", "[]");
+	}
 
 	for (let i = 0; i < gatheringDto.gatheringCategoryDetails.length; i++) {
 		const detail: GatheringCategoryDetailReqDto = gatheringDto.gatheringCategoryDetails[i];