Merge branch 'main' of https://git.azuze.fr/kawa/SharepointToolbox-Web

Services/Export/WebExportService.cs

@@ -1,29 +1,41 @@
 using System.Text;
 using Microsoft.AspNetCore.Components;
 using Microsoft.JSInterop;
+using SharepointToolbox.Web.Services.Audit;
+using SharepointToolbox.Web.Services.Session;
 
 namespace SharepointToolbox.Web.Services.Export;
 
 /// <summary>
 /// Triggers browser file downloads from Blazor Server components.
 /// Converts string export outputs to bytes and invokes JS download.
+/// Every download is audit-logged as a report-export action.
 /// </summary>
 public class WebExportService
 {
-    private readonly IJSRuntime _js;
+    private readonly IJSRuntime          _js;
+    private readonly IAuditService        _audit;
+    private readonly IUserSessionService  _session;
 
-    public WebExportService(IJSRuntime js) { _js = js; }
+    public WebExportService(IJSRuntime js, IAuditService audit, IUserSessionService session)
+    {
+        _js      = js;
+        _audit   = audit;
+        _session = session;
+    }
 
     public async Task DownloadCsvAsync(string content, string fileName)
     {
         var bytes = new UTF8Encoding(encoderShouldEmitUTF8Identifier: true).GetBytes(content);
         await _js.InvokeVoidAsync("sptb.downloadFile", fileName, "text/csv;charset=utf-8", Convert.ToBase64String(bytes));
+        await LogExportAsync(fileName, bytes.Length);
     }
 
     public async Task DownloadHtmlAsync(string content, string fileName)
     {
         var bytes = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false).GetBytes(content);
         await _js.InvokeVoidAsync("sptb.downloadFile", fileName, "text/html;charset=utf-8", Convert.ToBase64String(bytes));
+        await LogExportAsync(fileName, bytes.Length);
     }
 
     /// <summary>
@@ -33,5 +45,17 @@ public class WebExportService
     public async Task DownloadBytesAsync(byte[] content, string fileName, string mime)
     {
         await _js.InvokeVoidAsync("sptb.downloadFile", fileName, mime, Convert.ToBase64String(content));
+        await LogExportAsync(fileName, content.Length);
+    }
+
+    /// <summary>
+    /// Records the download as a "ReportExport" audit entry. The file name encodes
+    /// the report kind (search_, permissions_, storage_, …) and timestamp.
+    /// </summary>
+    private Task LogExportAsync(string fileName, int byteCount)
+    {
+        var client = _session.CurrentProfile?.Name ?? string.Empty;
+        var sizeKb = (byteCount / 1024.0).ToString("F1");
+        return _audit.LogAsync("ReportExport", client, Array.Empty<string>(), $"{fileName} ({sizeKb} KB)");
     }
 }