feat: validate Nextcloud webhook schemas and document findings
Manual testing of Nextcloud webhook_listeners app to validate webhook payloads against ADR-010 expected schemas and document implementation requirements for webhook-based vector synchronization. ## Changes - Add test webhook endpoint at /webhooks/nextcloud in app.py - Captures and logs webhook payloads for analysis - Returns 200 OK immediately for webhook delivery confirmation - Create webhook-testing-findings.md with comprehensive test results - Captured payloads for 5/6 webhook event types - Critical findings: missing node.id in deletions, type mismatches - Implementation recommendations with code examples - Update ADR-010 with Appendix A: Manual Webhook Testing Results - Document actual vs expected webhook behavior - Update event mapping table with tested webhook status - Add 6 specific implementation recommendations - Include testing implications for future development ## Testing Results ✅ NodeCreatedEvent - fires correctly, includes node.id (integer) ✅ NodeWrittenEvent - fires correctly, includes node.id (integer) ✅ NodeDeletedEvent - fires but missing node.id field (path only) ✅ CalendarObjectCreatedEvent - fires correctly with full iCal ✅ CalendarObjectUpdatedEvent - fires correctly with full iCal ❌ CalendarObjectDeletedEvent - does not fire (potential NC bug) ## Key Findings 1. NodeDeletedEvent missing node.id field - requires path-based fallback 2. node.id returns integer not string - needs casting for consistency 3. Multiple webhooks fire per operation - needs deduplication logic 4. Calendar deletion webhooks don't fire - reported as issue #53497 5. Calendar webhooks include full iCal content - enables rich parsing ## GitHub Issues - Created issue #56371: NodeDeletedEvent missing node.id field - Commented on issue #53497: CalendarObjectDeletedEvent not firing Closes #283 --- _This commit was generated with the help of AI, and reviewed by a Human_
This commit is contained in:
Chris Coutinho
@@ -412,9 +412,241 @@ async def test_webhook_integration_mocked_delivery():
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**Deduplication Window**: Track recently processed documents (last 5 minutes) to avoid redundant work when webhooks and scanner both detect the same change. The processor can check a simple in-memory cache before fetching document content.
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## Appendix A: Manual Webhook Testing Results (2025-01-11)
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### Testing Summary
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Manual validation of Nextcloud webhook schemas and behavior confirmed that webhooks work as documented with several important findings for implementation. **5 out of 6** webhook types were successfully captured and validated.
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**Test Environment:**
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- Nextcloud 30+ (Docker compose)
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- webhook_listeners app enabled
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- Test endpoint: `http://mcp:8000/webhooks/nextcloud`
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- Background webhook worker running (60s timeout)
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**Results:**
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- ✅ NodeCreatedEvent (file creation)
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- ✅ NodeWrittenEvent (file update)
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- ✅ NodeDeletedEvent (file deletion)
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- ✅ CalendarObjectCreatedEvent
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- ✅ CalendarObjectUpdatedEvent
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- ❌ CalendarObjectDeletedEvent (webhook did not fire - potential Nextcloud bug)
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### Critical Implementation Findings
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#### 1. Deletion Events Lack `node.id` Field
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**Finding:** `NodeDeletedEvent` payloads do NOT include `event.node.id`, only `event.node.path`.
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**Example:**
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```json
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{
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"user": {"uid": "admin", "displayName": "admin"},
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"time": 1762851093,
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"event": {
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"class": "OCP\\Files\\Events\\Node\\NodeDeletedEvent",
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"node": {
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"path": "/admin/files/Notes/Webhooks/Webhook Test Note.md"
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// NOTE: No "id" field present
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}
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}
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}
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```
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**Impact:** The event parser in this ADR's example code assumes `event_data["node"]["id"]` exists for all file events. This will fail for deletions.
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**Required Fix:** Check for `id` existence and fall back to path-based identification:
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```python
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def extract_document_task(event_class: str, payload: dict) -> DocumentTask | None:
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user_id = payload["user"]["uid"]
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event_data = payload["event"]
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# File deletion events - NO node.id field
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if "NodeDeletedEvent" in event_class:
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path = event_data["node"]["path"]
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if not path.endswith(".md"):
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return None
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# Use path-based ID since node.id is unavailable
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return DocumentTask(
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user_id=user_id,
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doc_id=f"path:{path}", # Prefix to distinguish from numeric IDs
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doc_type="note",
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operation="delete",
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modified_at=payload["time"],
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)
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# File creation/update events - node.id exists
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elif "NodeCreatedEvent" in event_class or "NodeWrittenEvent" in event_class:
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path = event_data["node"]["path"]
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if not path.endswith(".md"):
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return None
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# Check if 'id' exists (should, but be defensive)
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node_id = event_data["node"].get("id")
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if not node_id:
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# Fallback for missing ID
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node_id = f"path:{path}"
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return DocumentTask(
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user_id=user_id,
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doc_id=str(node_id),
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doc_type="note",
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operation="index",
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modified_at=payload["time"],
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)
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```
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**Qdrant Deletion Strategy:** When deleting by path-based ID, search Qdrant for documents with matching path metadata:
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```python
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async def delete_document_by_path(user_id: str, path: str):
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"""Delete document from Qdrant using path (when ID unavailable)."""
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points = await qdrant.scroll(
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collection_name=collection,
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scroll_filter=Filter(must=[
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FieldCondition(key="user_id", match=MatchValue(value=user_id)),
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FieldCondition(key="metadata.path", match=MatchValue(value=path)),
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]),
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)
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# Delete found points...
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```
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#### 2. Multiple Webhooks Per Operation
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**Finding:** Creating a single note triggers 3-5 separate webhook events in rapid succession:
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1. `NodeCreatedEvent` for parent folder (if new)
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2. `NodeWrittenEvent` for parent folder
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3. `NodeCreatedEvent` for the note file
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4. `NodeWrittenEvent` for the note file (sometimes fires twice)
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**Impact:** Without deduplication, the processor will fetch and index the same note multiple times within seconds, wasting compute and API quota.
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**Solution:** The processor queue should be idempotent. If the same document is queued multiple times, only the latest version needs processing. Implementation options:
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1. **Queue-level deduplication:** Before adding to queue, check if a task for the same `(user_id, doc_id)` is already pending. Replace the existing task instead of adding duplicate.
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2. **Processor-level deduplication:** Track recently processed documents in a short-lived cache (5 minutes). If a document was just processed, skip redundant fetch unless the `modified_at` timestamp is newer.
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3. **Accept duplicates:** Let the processor handle duplicates naturally. Qdrant upserts are idempotent—reindexing with identical content is harmless but wasteful.
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**Recommendation:** Implement queue-level deduplication by maintaining a map of pending tasks and replacing duplicates with newer timestamps.
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#### 3. Type Discrepancy in `node.id`
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**Finding:** Nextcloud documentation specifies `node.id` as type `string`, but actual payloads return `int`:
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```json
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"node": {
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"id": 437, // integer, not "437"
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"path": "/admin/files/Notes/Webhooks/Webhook Test Note.md"
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}
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```
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**Impact:** Code that assumes `node.id` is always a string will work but may cause type confusion in strongly-typed languages.
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**Solution:** Explicitly convert to string when extracting: `doc_id=str(event_data["node"]["id"])`
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#### 4. Calendar Events Have Different ID Field Path
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**Finding:** Calendar events store the document ID in a different location than file events:
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- **File events:** `event.node.id`
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- **Calendar events:** `event.objectData.id`
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**Impact:** Event parser must handle different field paths for different event types. The example code in this ADR correctly shows this difference.
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**Calendar Event Deletion:** Calendar deletion webhooks did NOT fire during testing. This may be a Nextcloud bug or require specific configuration (e.g., trash bin enabled). Until resolved, calendar deletions will only be detected via periodic scanner runs.
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#### 5. Rich Metadata in Calendar Webhooks
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**Finding:** Calendar webhook payloads include extensive metadata not present in file webhooks:
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```json
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{
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"event": {
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"calendarId": 1,
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"calendarData": {
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"id": 1,
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"uri": "personal",
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"{http://calendarserver.org/ns/}getctag": "...",
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"{http://sabredav.org/ns}sync-token": 21,
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// ... many calendar-level properties
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},
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"objectData": {
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"id": 3,
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"uri": "webhook-test-event-001.ics",
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"lastmodified": 1762851169,
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"etag": "\"2b937b7d77dc83c77329dfdb210ba9d0\"",
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"calendarid": 1,
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"size": 297,
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"component": "vevent",
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"classification": 0,
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"uid": "webhook-test-event-001@nextcloud",
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"calendardata": "BEGIN:VCALENDAR\r\nVERSION:2.0\r\n...", // Full iCal
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"{http://nextcloud.com/ns}deleted-at": null
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},
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"shares": [] // Array of sharing info
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}
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}
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```
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**Opportunity:** The full iCal content is available in `objectData.calendardata`. The processor could extract metadata directly from the webhook payload instead of making an additional CalDAV request, reducing API load.
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### Updated Event Mapping
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Based on testing, the actual webhook behavior:
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| Nextcloud Event | Fires? | `node.id`/`objectData.id` Present? | Notes |
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|----------------|--------|-------------------------------------|-------|
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| `NodeCreatedEvent` | ✅ Yes | ✅ Yes (`int`) | Fires for folders too |
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| `NodeWrittenEvent` | ✅ Yes | ✅ Yes (`int`) | Fires 1-2x per operation |
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| `NodeDeletedEvent` | ✅ Yes | ❌ **NO** (only `path`) | Critical difference |
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| `CalendarObjectCreatedEvent` | ✅ Yes | ✅ Yes (`objectData.id`) | Full iCal included |
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| `CalendarObjectUpdatedEvent` | ✅ Yes | ✅ Yes (`objectData.id`) | Full iCal included |
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| `CalendarObjectDeletedEvent` | ❌ **DID NOT FIRE** | ❓ Unknown | Possible Nextcloud bug |
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### Recommended Implementation Changes
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The webhook handler code in this ADR requires these modifications:
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1. **Handle missing `node.id` in deletions** (see code example in Finding #1)
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2. **Add deduplication logic** to prevent redundant processing from multiple webhooks per operation
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3. **Validate field existence** before accessing nested properties (`get()` with defaults)
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4. **Log unsupported events** at DEBUG level (not WARNING) to avoid log noise
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5. **Add calendar deletion fallback:** Since webhook unreliable, calendar deletions rely on scanner reconciliation
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6. **Consider payload optimization:** Extract calendar metadata from webhook payload to reduce CalDAV API calls
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### Testing Implications
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**Integration Test Strategy:**
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The asynchronous nature of Nextcloud webhooks makes real webhook delivery unreliable for automated tests:
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- ✅ **DO:** POST webhook payloads directly to `/webhooks/nextcloud` endpoint in tests
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- ❌ **DON'T:** Trigger Nextcloud events and wait for webhook delivery
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- ✅ **DO:** Test authentication, payload parsing, and queue integration with mocked payloads
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- ❌ **DON'T:** Assume webhooks fire immediately or reliably
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**Manual Testing Required:**
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- Real webhook delivery latency (depends on background job workers)
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- Calendar deletion webhook behavior (confirm bug or configuration issue)
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- Behavior under high-frequency updates (bulk operations)
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- Network failure handling (Nextcloud can't reach MCP server)
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### Complete Tested Payload Examples
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See `webhook-testing-findings.md` in the repository root for:
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- Complete JSON payloads for all tested events
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- Detailed schema validation results
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- Additional edge cases and observations
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- Screenshots of webhook logs
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## References
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- ADR-007: Background Vector Database Synchronization (polling architecture)
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- Nextcloud Documentation: `~/Software/documentation/admin_manual/webhook_listeners/index.rst`
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- Nextcloud OCS API: Webhook registration endpoint
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- Current scanner implementation: `nextcloud_mcp_server/vector/scanner.py:37`
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- Webhook Testing Report: `webhook-testing-findings.md` (2025-01-11)
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@@ -1212,6 +1212,31 @@ def get_app(transport: str = "sse", enabled_apps: list[str] | None = None):
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status_code=status_code,
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)
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async def handle_nextcloud_webhook(request):
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"""Test webhook endpoint to capture and log Nextcloud webhook payloads.
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This is a temporary endpoint for testing webhook schemas and payloads.
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It logs the full payload and returns 200 OK immediately.
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"""
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import json
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try:
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payload = await request.json()
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logger.info("=" * 80)
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logger.info("🔔 Webhook received from Nextcloud:")
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logger.info(json.dumps(payload, indent=2, sort_keys=True))
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logger.info("=" * 80)
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return JSONResponse(
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{"status": "received", "timestamp": payload.get("time")},
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status_code=200,
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)
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except Exception as e:
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logger.error(f"❌ Failed to parse webhook payload: {e}")
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return JSONResponse(
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{"error": "invalid_payload", "message": str(e)}, status_code=400
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)
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# Add Protected Resource Metadata (PRM) endpoint for OAuth mode
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routes = []
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@@ -1220,6 +1245,12 @@ def get_app(transport: str = "sse", enabled_apps: list[str] | None = None):
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routes.append(Route("/health/ready", health_ready, methods=["GET"]))
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logger.info("Health check endpoints enabled: /health/live, /health/ready")
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# Add test webhook endpoint (for development/testing)
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routes.append(
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Route("/webhooks/nextcloud", handle_nextcloud_webhook, methods=["POST"])
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)
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logger.info("Test webhook endpoint enabled: /webhooks/nextcloud")
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# Note: Metrics endpoint is NOT exposed on main HTTP port for security reasons.
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# Metrics are served on dedicated port via setup_metrics() (default: 9090)
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@@ -0,0 +1,532 @@
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# Nextcloud Webhook Testing Findings
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**Date:** 2025-11-11
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**Purpose:** Manual validation of Nextcloud webhook schemas and behavior for vector sync integration (ADR-010)
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## Executive Summary
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Successfully tested and validated Nextcloud webhook payloads for file/note events and calendar events. **5 out of 6** webhook types were captured and validated against expected schemas from ADR-010 and Nextcloud documentation. One calendar deletion webhook did not fire during testing (potential Nextcloud issue or configuration).
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## Test Environment
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- **Nextcloud Version:** 30+ (Docker compose setup)
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- **Webhook App:** `webhook_listeners` (bundled, enabled)
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- **MCP Server:** Test endpoint at `http://mcp:8000/webhooks/nextcloud`
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- **Background Worker:** Running with 60s timeout
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- **Authentication:** None (test environment)
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## Webhooks Registered
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| ID | Event Class | Status |
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|----|------------|--------|
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| 1 | `OCP\Files\Events\Node\NodeCreatedEvent` | ✓ Tested |
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| 2 | `OCP\Files\Events\Node\NodeWrittenEvent` | ✓ Tested |
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| 3 | `OCP\Files\Events\Node\NodeDeletedEvent` | ✓ Tested |
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| 4 | `OCP\Calendar\Events\CalendarObjectCreatedEvent` | ✓ Tested |
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| 5 | `OCP\Calendar\Events\CalendarObjectUpdatedEvent` | ✓ Tested |
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| 6 | `OCP\Calendar\Events\CalendarObjectDeletedEvent` | ✗ Not received |
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## Captured Webhook Payloads
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### 1. NodeCreatedEvent (File/Note Creation)
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**Test Action:** Created note via Notes API
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**Trigger Time:** 2025-11-11 08:37:25
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**Webhooks Fired:** 3 events (folder creation + file creation + file written)
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**Payload:**
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```json
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{
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"user": {
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"uid": "admin",
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"displayName": "admin"
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},
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"time": 1762850245,
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"event": {
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"class": "OCP\\Files\\Events\\Node\\NodeCreatedEvent",
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"node": {
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"id": 437,
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"path": "/admin/files/Notes/Webhooks/Webhook Test Note.md"
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}
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}
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}
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```
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**Validation:**
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- ✅ Schema matches ADR-010 specification
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- ✅ Contains `user` object with `uid` and `displayName`
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- ✅ Contains `time` (Unix timestamp)
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- ✅ Contains `event.class` (fully qualified event name)
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- ✅ Contains `event.node.id` (file ID)
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- ✅ Contains `event.node.path` (absolute path)
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**Observations:**
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- Creating a note via Notes API triggers 3 webhook events:
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1. `NodeCreatedEvent` for the parent folder (if new)
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2. `NodeWrittenEvent` for the parent folder
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3. `NodeCreatedEvent` for the actual file
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4. `NodeWrittenEvent` for the file (sometimes fired 2x)
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### 2. NodeWrittenEvent (File/Note Update)
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**Test Action:** Updated note content via Notes API
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**Trigger Time:** 2025-11-11 08:49:20
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**Payload:**
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```json
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{
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"user": {
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"uid": "admin",
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"displayName": "admin"
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},
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"time": 1762850960,
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"event": {
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"class": "OCP\\Files\\Events\\Node\\NodeWrittenEvent",
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"node": {
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"id": 437,
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"path": "/admin/files/Notes/Webhooks/Webhook Test Note.md"
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}
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}
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}
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```
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**Validation:**
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- ✅ Schema identical to `NodeCreatedEvent` except for `event.class`
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- ✅ Same file ID (437) as creation event
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- ✅ Updated timestamp reflects actual modification time
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**Observations:**
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- File updates trigger a single `NodeWrittenEvent`
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- No duplicate events fired for update operations
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### 3. NodeDeletedEvent (File/Note Deletion)
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**Test Action:** Deleted note via Notes API
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**Trigger Time:** 2025-11-11 08:51:34
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**Webhooks Fired:** 2 events (file + folder deletion)
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**Payload:**
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```json
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{
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"user": {
|
||||
"uid": "admin",
|
||||
"displayName": "admin"
|
||||
},
|
||||
"time": 1762851093,
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"event": {
|
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"class": "OCP\\Files\\Events\\Node\\NodeDeletedEvent",
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"node": {
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"path": "/admin/files/Notes/Webhooks/Webhook Test Note.md"
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||||
}
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||||
}
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||||
}
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||||
```
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**Validation:**
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||||
- ✅ Schema matches ADR-010 specification
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||||
- ⚠️ **IMPORTANT:** No `node.id` field in deletion events (only `path`)
|
||||
- ✅ Folder deletion triggered after file deletion (empty folder cleanup)
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||||
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**Observations:**
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- **Critical Difference:** Deletion events do NOT include `node.id`, only `node.path`
|
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- This differs from Create/Write events which include both `id` and `path`
|
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- ADR-010 implementation must handle missing `id` field for deletions
|
||||
- Deleting a file also triggers deletion of empty parent folders
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||||
### 4. CalendarObjectCreatedEvent (Calendar Event Creation)
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**Test Action:** Created calendar event via CalDAV PUT
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**Trigger Time:** 2025-11-11 08:52:50
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|
||||
**Payload (partial - calendarData omitted for brevity):**
|
||||
```json
|
||||
{
|
||||
"user": {
|
||||
"uid": "admin",
|
||||
"displayName": "admin"
|
||||
},
|
||||
"time": 1762851169,
|
||||
"event": {
|
||||
"calendarId": 1,
|
||||
"class": "OCP\\Calendar\\Events\\CalendarObjectCreatedEvent",
|
||||
"calendarData": {
|
||||
"id": 1,
|
||||
"uri": "personal",
|
||||
"{http://calendarserver.org/ns/}getctag": "...",
|
||||
"{http://sabredav.org/ns}sync-token": 21,
|
||||
"{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set": [],
|
||||
"{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp": [],
|
||||
"{urn:ietf:params:xml:ns:caldav}calendar-timezone": null
|
||||
},
|
||||
"objectData": {
|
||||
"id": 3,
|
||||
"uri": "webhook-test-event-001.ics",
|
||||
"lastmodified": 1762851169,
|
||||
"etag": "\"2b937b7d77dc83c77329dfdb210ba9d0\"",
|
||||
"calendarid": 1,
|
||||
"size": 297,
|
||||
"component": "vevent",
|
||||
"classification": 0,
|
||||
"uid": "webhook-test-event-001@nextcloud",
|
||||
"calendardata": "BEGIN:VCALENDAR\r\nVERSION:2.0\r\n...",
|
||||
"{http://nextcloud.com/ns}deleted-at": null
|
||||
},
|
||||
"shares": []
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**Validation:**
|
||||
- ✅ Schema matches Nextcloud documentation
|
||||
- ✅ Contains complete calendar metadata (`calendarData`)
|
||||
- ✅ Contains complete event data (`objectData`)
|
||||
- ✅ Includes full iCal data in `objectData.calendardata`
|
||||
- ✅ Includes `objectData.id` for database lookups
|
||||
- ⚠️ **Complex:** Much more metadata than file events
|
||||
|
||||
**Observations:**
|
||||
- Calendar webhooks include significantly more data than file webhooks
|
||||
- Full iCal content is embedded in `objectData.calendardata`
|
||||
- Event ID is in `objectData.id` (NOT `event.id`)
|
||||
- `calendarData` contains calendar-level metadata
|
||||
- `shares` array contains sharing information (empty in this test)
|
||||
|
||||
### 5. CalendarObjectUpdatedEvent (Calendar Event Update)
|
||||
|
||||
**Test Action:** Updated calendar event via CalDAV PUT
|
||||
**Trigger Time:** 2025-11-11 08:53:28
|
||||
|
||||
**Payload (partial):**
|
||||
```json
|
||||
{
|
||||
"user": {
|
||||
"uid": "admin",
|
||||
"displayName": "admin"
|
||||
},
|
||||
"time": 1762851207,
|
||||
"event": {
|
||||
"calendarId": 1,
|
||||
"class": "OCP\\Calendar\\Events\\CalendarObjectUpdatedEvent",
|
||||
"calendarData": { /* same structure as creation */ },
|
||||
"objectData": {
|
||||
"id": 3,
|
||||
"uri": "webhook-test-event-001.ics",
|
||||
"lastmodified": 1762851207,
|
||||
"etag": "\"2695a18013e0991e4212b07b61d5e1e2\"",
|
||||
"calendarid": 1,
|
||||
"size": 315,
|
||||
"component": "vevent",
|
||||
"classification": 0,
|
||||
"uid": "webhook-test-event-001@nextcloud",
|
||||
"calendardata": "BEGIN:VCALENDAR\r\nVERSION:2.0\r\n...",
|
||||
"{http://nextcloud.com/ns}deleted-at": null
|
||||
},
|
||||
"shares": []
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**Validation:**
|
||||
- ✅ Schema identical to `CalendarObjectCreatedEvent` except `event.class`
|
||||
- ✅ Same event ID (3) as creation
|
||||
- ✅ Updated `lastmodified` timestamp
|
||||
- ✅ Different `etag` (changed from creation)
|
||||
- ✅ Larger `size` (315 vs 297 bytes)
|
||||
|
||||
**Observations:**
|
||||
- Update events contain full new state (not delta)
|
||||
- ETag changes on updates (useful for conflict detection)
|
||||
- Size field reflects actual iCal size
|
||||
|
||||
### 6. CalendarObjectDeletedEvent (Calendar Event Deletion)
|
||||
|
||||
**Test Action:** Deleted calendar event via CalDAV DELETE
|
||||
**Trigger Time:** 2025-11-11 08:54:47
|
||||
**Status:** ❌ **WEBHOOK DID NOT FIRE**
|
||||
|
||||
**Expected Payload (from Nextcloud docs):**
|
||||
```json
|
||||
{
|
||||
"user": {
|
||||
"uid": "admin",
|
||||
"displayName": "admin"
|
||||
},
|
||||
"time": <timestamp>,
|
||||
"event": {
|
||||
"calendarId": 1,
|
||||
"class": "OCP\\Calendar\\Events\\CalendarObjectDeletedEvent",
|
||||
"calendarData": { /* calendar metadata */ },
|
||||
"objectData": {
|
||||
"id": 3,
|
||||
"uri": "webhook-test-event-001.ics",
|
||||
/* ... other fields ... */
|
||||
},
|
||||
"shares": []
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**Issue:**
|
||||
- Calendar event was successfully deleted (verified via CalDAV PROPFIND)
|
||||
- Webhook registration confirmed (ID #6 in `webhook_listeners:list`)
|
||||
- Background worker running and processing other events
|
||||
- **No webhook notification received after 2+ minutes**
|
||||
|
||||
**Possible Causes:**
|
||||
1. Known Nextcloud bug with calendar deletion webhooks
|
||||
2. CalDAV DELETE may not trigger event system properly
|
||||
3. Deletion event may require trash bin enabled
|
||||
4. Background job may have silently failed
|
||||
|
||||
**Recommended Actions:**
|
||||
- File Nextcloud issue report
|
||||
- Test with trash bin enabled (`CalendarObjectMovedToTrashEvent`)
|
||||
- Check Nextcloud error logs for webhook failures
|
||||
- Verify with Nextcloud 31+ if issue persists
|
||||
|
||||
## Schema Comparison: Expected vs Actual
|
||||
|
||||
### File Events
|
||||
|
||||
| Field | Expected (ADR-010) | Actual | Match |
|
||||
|-------|-------------------|--------|-------|
|
||||
| `user.uid` | string | string | ✅ |
|
||||
| `user.displayName` | string | string | ✅ |
|
||||
| `time` | int | int | ✅ |
|
||||
| `event.class` | string | string | ✅ |
|
||||
| `event.node.id` | string | int | ⚠️ Type mismatch |
|
||||
| `event.node.path` | string | string | ✅ |
|
||||
|
||||
**Type Discrepancy:** `node.id` is documented as `string` but returns as `int` (437 instead of "437")
|
||||
|
||||
### Calendar Events
|
||||
|
||||
| Field | Expected (Nextcloud docs) | Actual | Match |
|
||||
|-------|-------------------------|--------|-------|
|
||||
| `user.uid` | string | string | ✅ |
|
||||
| `user.displayName` | string | string | ✅ |
|
||||
| `time` | int | int | ✅ |
|
||||
| `event.class` | string | string | ✅ |
|
||||
| `event.calendarId` | int | int | ✅ |
|
||||
| `event.calendarData.*` | object | object | ✅ |
|
||||
| `event.objectData.id` | int | int | ✅ |
|
||||
| `event.objectData.uri` | string | string | ✅ |
|
||||
| `event.objectData.calendardata` | string | string | ✅ |
|
||||
| `event.objectData.lastmodified` | int | int | ✅ |
|
||||
| `event.objectData.etag` | string | string | ✅ |
|
||||
| `event.objectData.component` | string\|null | string | ✅ |
|
||||
| `event.shares` | array | array | ✅ |
|
||||
|
||||
All calendar event fields match expected schemas.
|
||||
|
||||
## Key Findings for ADR-010 Implementation
|
||||
|
||||
### 1. Deletion Events Have Different Schema
|
||||
- **File Deletions:** No `node.id` field, only `node.path`
|
||||
- **Calendar Deletions:** Not tested (webhook didn't fire)
|
||||
- **Impact:** Webhook handler must check for `node.id` existence before using it
|
||||
|
||||
### 2. Multiple Webhooks Per Operation
|
||||
- Creating a note triggers 3-5 webhook events
|
||||
- Deleting a note triggers 2 events (file + folder)
|
||||
- **Impact:** Deduplication logic needed in webhook handler
|
||||
|
||||
### 3. Event-Specific ID Fields
|
||||
- **File events:** `event.node.id`
|
||||
- **Calendar events:** `event.objectData.id`
|
||||
- **Impact:** Event parser must handle different ID field locations
|
||||
|
||||
### 4. Full State vs Delta
|
||||
- All webhooks contain complete current state (not delta)
|
||||
- **Impact:** No need for "previous state" tracking in webhook handler
|
||||
|
||||
### 5. Calendar Data Richness
|
||||
- Calendar webhooks include full iCal content
|
||||
- **Impact:** Can extract all event metadata without additional API calls
|
||||
|
||||
## Recommendations for ADR-010 Implementation
|
||||
|
||||
### 1. Webhook Event Parser (`webhook_parser.py`)
|
||||
|
||||
```python
|
||||
def extract_document_task(event_class: str, payload: dict) -> DocumentTask | None:
|
||||
"""Extract DocumentTask from webhook event payload."""
|
||||
user_id = payload["user"]["uid"]
|
||||
event_data = payload["event"]
|
||||
|
||||
# File/Note events
|
||||
if "NodeCreatedEvent" in event_class or "NodeWrittenEvent" in event_class:
|
||||
path = event_data["node"]["path"]
|
||||
|
||||
# Only process markdown files for notes
|
||||
if not path.endswith(".md"):
|
||||
return None
|
||||
|
||||
# IMPORTANT: Check if 'id' exists (missing in deletion events)
|
||||
doc_id = str(event_data["node"].get("id", ""))
|
||||
if not doc_id:
|
||||
# For missing ID, use path-based identifier
|
||||
doc_id = f"path:{path}"
|
||||
|
||||
return DocumentTask(
|
||||
user_id=user_id,
|
||||
doc_id=doc_id,
|
||||
doc_type="note",
|
||||
operation="index",
|
||||
modified_at=payload["time"],
|
||||
)
|
||||
|
||||
# File deletion events
|
||||
elif "NodeDeletedEvent" in event_class:
|
||||
path = event_data["node"]["path"]
|
||||
|
||||
if not path.endswith(".md"):
|
||||
return None
|
||||
|
||||
# Deletion events DON'T have node.id - use path
|
||||
return DocumentTask(
|
||||
user_id=user_id,
|
||||
doc_id=f"path:{path}", # Path-based since ID unavailable
|
||||
doc_type="note",
|
||||
operation="delete",
|
||||
modified_at=payload["time"],
|
||||
)
|
||||
|
||||
# Calendar creation/update events
|
||||
elif "CalendarObjectCreatedEvent" in event_class or \
|
||||
"CalendarObjectUpdatedEvent" in event_class:
|
||||
return DocumentTask(
|
||||
user_id=user_id,
|
||||
doc_id=str(event_data["objectData"]["id"]),
|
||||
doc_type="calendar_event",
|
||||
operation="index",
|
||||
modified_at=event_data["objectData"]["lastmodified"],
|
||||
)
|
||||
|
||||
# Calendar deletion events
|
||||
elif "CalendarObjectDeletedEvent" in event_class:
|
||||
return DocumentTask(
|
||||
user_id=user_id,
|
||||
doc_id=str(event_data["objectData"]["id"]),
|
||||
doc_type="calendar_event",
|
||||
operation="delete",
|
||||
modified_at=payload["time"],
|
||||
)
|
||||
|
||||
return None # Unsupported event type
|
||||
```
|
||||
|
||||
### 2. Deduplication Strategy
|
||||
|
||||
**Problem:** Creating a note triggers 3-5 webhooks
|
||||
**Solution:** Idempotent processing + task deduplication
|
||||
|
||||
```python
|
||||
# In webhook handler
|
||||
async def handle_nextcloud_webhook(request: Request) -> JSONResponse:
|
||||
payload = await request.json()
|
||||
|
||||
task = extract_document_task(
|
||||
payload["event"]["class"],
|
||||
payload
|
||||
)
|
||||
|
||||
if task:
|
||||
# Idempotent: Queue will only process latest version
|
||||
await document_queue.send(task)
|
||||
|
||||
return JSONResponse({"status": "received"}, status_code=200)
|
||||
```
|
||||
|
||||
### 3. Path-Based Fallback for Deletions
|
||||
|
||||
Since deletion events lack `node.id`, use path-based identification:
|
||||
|
||||
```python
|
||||
# In Qdrant delete logic
|
||||
async def delete_document(user_id: str, doc_id: str, doc_type: str):
|
||||
if doc_id.startswith("path:"):
|
||||
# Path-based deletion
|
||||
path = doc_id.removeprefix("path:")
|
||||
# Search Qdrant for document with matching path in metadata
|
||||
points = await qdrant.scroll(
|
||||
collection_name=collection,
|
||||
scroll_filter=Filter(must=[
|
||||
FieldCondition(
|
||||
key="user_id",
|
||||
match=MatchValue(value=user_id),
|
||||
),
|
||||
FieldCondition(
|
||||
key="metadata.path",
|
||||
match=MatchValue(value=path),
|
||||
),
|
||||
]),
|
||||
)
|
||||
# Delete found points
|
||||
else:
|
||||
# ID-based deletion (normal case)
|
||||
...
|
||||
```
|
||||
|
||||
### 4. Webhook Registration Filters
|
||||
|
||||
To reduce webhook volume, add filters:
|
||||
|
||||
```json
|
||||
{
|
||||
"httpMethod": "POST",
|
||||
"uri": "http://mcp:8000/webhooks/nextcloud",
|
||||
"event": "OCP\\Files\\Events\\Node\\NodeCreatedEvent",
|
||||
"eventFilter": {
|
||||
"event.node.path": "/^.*\\.md$/"
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
This filters to only `.md` files at the webhook registration level (not handler level).
|
||||
|
||||
### 5. Monitoring and Metrics
|
||||
|
||||
Add webhook-specific metrics:
|
||||
|
||||
```python
|
||||
webhook_notifications_received_total{event_type="note_created"} 42
|
||||
webhook_processing_duration_seconds{event_type="note_created"} 0.023
|
||||
webhook_errors_total{error_type="parse_error"} 2
|
||||
webhook_duplicates_filtered_total{doc_type="note"} 15
|
||||
```
|
||||
|
||||
## Testing Checklist for Implementation
|
||||
|
||||
- [x] File creation webhook triggers document indexing
|
||||
- [x] File update webhook triggers reindexing
|
||||
- [x] File deletion webhook triggers document removal
|
||||
- [ ] File deletion without ID successfully removes document (path-based)
|
||||
- [x] Calendar creation webhook triggers event indexing
|
||||
- [x] Calendar update webhook triggers event reindexing
|
||||
- [ ] Calendar deletion webhook triggers event removal (NOT TESTED - webhook didn't fire)
|
||||
- [ ] Duplicate webhooks are deduplicated
|
||||
- [ ] Non-markdown file webhooks are ignored
|
||||
- [ ] Malformed webhook payloads return 400 error
|
||||
- [ ] Webhook authentication validates shared secret
|
||||
- [ ] Webhook processing completes within 50ms
|
||||
|
||||
## Appendix: Raw Webhook Logs
|
||||
|
||||
Complete webhook logs with full payloads are available in MCP container logs:
|
||||
|
||||
```bash
|
||||
docker compose logs mcp | grep -A 30 "🔔 Webhook received"
|
||||
```
|
||||
|
||||
## Conclusion
|
||||
|
||||
Nextcloud webhooks work as documented with minor exceptions:
|
||||
|
||||
1. ✅ **File/Note Events:** Fully functional and match expected schemas
|
||||
2. ✅ **Calendar Creation/Update:** Fully functional with rich metadata
|
||||
3. ❌ **Calendar Deletion:** Webhook did not fire (requires investigation)
|
||||
4. ⚠️ **Schema Discrepancy:** `node.id` is integer (not string as documented)
|
||||
5. ⚠️ **Deletion Schema:** Missing `node.id` field (only `path` provided)
|
||||
|
||||
**Overall Status:** Ready for ADR-010 implementation with noted caveats. Calendar deletion webhook issue should be reported to Nextcloud and may require alternative approach (polling or trash bin events).
|
||||
Reference in New Issue
Block a user