Files
SharepointToolbox-Web/Core/Helpers/SharePointAccessDeniedException.cs
T
kawa 57f5239cfc Wire auto-elevate ownership across all SharePoint operations
The "Auto-elevate ownership when permission scan is denied" setting was
dead code: the toggle was persisted but never read, the audit flow never
passed its onAccessDenied callback, and EnrichException wrapped every CSOM
error (including ServerUnauthorizedAccessException) into a generic
InvalidOperationException so the access-denied catch could never match.

Centralize elevation instead of per-call-site callbacks:

- Throw typed SharePointAccessDeniedException from EnrichException on
  access-denied, preserving the failing site URL and enriched diagnostic.
- Add scoped IElevationCoordinator that catches it, and when AutoTakeOwnership
  is enabled takes site-collection admin via the tenant admin endpoint and
  retries the operation once. Per-site dedupe prevents loops; admin-host
  denials are not treated as ownership issues. Retry is safe because each
  wrapped operation closure re-issues its own CSOM loads.
- Wrap all site-scoped operations (Storage, Permissions, Duplicates, Search,
  VersionCleanup, FolderStructure, BulkMembers, FileTransfer, Templates) and
  the UserAccessAudit per-site scan in the coordinator.
- Drop the unused onAccessDenied parameter from IUserAccessAuditService.

Elevation still requires SharePoint tenant admin rights on the signed-in
account; the coordinator surfaces a clear message when that is missing.

Also keeps the prior StorageService change that avoids admin-gated
folder.StorageMetrics (403 for delegated non-admin tokens).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-02 14:16:12 +02:00

19 lines
668 B
C#

namespace SharepointToolbox.Web.Core.Helpers;
/// <summary>
/// Thrown when a CSOM operation fails with a SharePoint "access denied"
/// (System.UnauthorizedAccessException / ServerUnauthorizedAccessException).
/// Carries the failing site URL so the elevation coordinator can take site-collection
/// admin ownership and retry. Message is the enriched diagnostic from EnrichException.
/// </summary>
public sealed class SharePointAccessDeniedException : Exception
{
public string SiteUrl { get; }
public SharePointAccessDeniedException(string message, string siteUrl, Exception inner)
: base(message, inner)
{
SiteUrl = siteUrl;
}
}