Azure Blob Storage SAS Token Renewal

Version: 4.35.0 Date: 2026-02-13

Goal: Fix broken downloads when Azure SAS token expires, without requiring document migration.

Solution: Separate SAS token from container URL — token is now stored in config and applied at download time.

Features:

• New config format: containerUrl + sasToken (separate fields)
• Token renewal only requires config update, no document migration needed
• Backward compatible with existing documents (old format still works)

Implementation Details:

• Download detects format via ? presence in remote URL
• Old format (remote contains ?): URL used as-is
• New format (no ? in remote): URL built from containerUrl + filename + sasToken
• Upload stores filename only when new config format is used
• @deprecated v4.35.0 markers added for future cleanup

Files Modified:

• src/utils/downloadHelpers.ts - Smart URL construction based on remote format
• src/services/fileProtect/uploadHandlers/azureBlob.pipe.ts - Support new config format, store filename only