fix: resolve GCS bad request error in media uploads. (#1265)

Co-authored-by: Hassieb Pakzad <[email protected]>

Author: Jay-flow

langfuse/_task_manager/media_manager.py

@@ -246,15 +246,20 @@ def _process_upload_media_job(
 
             return
 
+        headers = {"Content-Type": data["content_type"]}
+
+        # In self-hosted setups with GCP, do not add unsupported headers that fail the upload 
+        is_self_hosted_gcs_bucket = "storage.googleapis.com" in upload_url
+
+        if not is_self_hosted_gcs_bucket:
+            headers["x-ms-blob-type"] = "BlockBlob"
+            headers["x-amz-checksum-sha256"] = data["content_sha256_hash"]
+
         upload_start_time = time.time()
         upload_response = self._request_with_backoff(
             requests.put,
             upload_url,
-            headers={
-                "Content-Type": data["content_type"],
-                "x-amz-checksum-sha256": data["content_sha256_hash"],
-                "x-ms-blob-type": "BlockBlob",
-            },
+            headers=headers,
             data=data["content_bytes"],
         )
         upload_time_ms = int((time.time() - upload_start_time) * 1000)