igny8/igny8-wp-plugin/docs/PHASE_6_IMPLEMENTATION_SUMMARY.md

Phase 6 Implementation Summary

Overview

Phase 6 implementation adds webhook support and remote control capabilities, allowing IGNY8 SaaS to send events to WordPress.

Implemented Features

6.1 REST Route Registration with Shared Secret ✅

Files Created:

• includes/class-igny8-webhooks.php - Main webhook handler class

Features:

• REST Endpoint: /wp-json/igny8/v1/event (POST)
• Shared Secret Authentication: HMAC-SHA256 signature verification
• Connection Check: All webhook handlers verify igny8_is_connection_enabled() before processing

Security:

• Webhook secret stored in WordPress options (auto-generated on first use)
• Signature verification via X-IGNY8-Signature header
• Secret can be regenerated from settings page
• Failed authentication attempts are logged

Functions:

• igny8_get_webhook_secret() - Get or generate webhook secret
• igny8_regenerate_webhook_secret() - Regenerate secret

---

6.2 SaaS Event Handlers ✅

Event Types Supported:

1. Task Published (task_published, task_completed)

• Creates or updates WordPress post from IGNY8 task
• Fetches full task data from Writer API
• Respects enabled post types
• Updates post status if task is completed

2. Link Recommendation (link_recommendation, insert_link)

• Queues link insertion for processing
• Validates required parameters (post_id, target_url, anchor)
• Respects Linker module toggle
• Processes links asynchronously via cron

3. Optimizer Request (optimizer_request, optimizer_job_completed)

• Updates optimizer job status
• Stores score changes and recommendations
• Updates post meta with optimizer data
• Respects Optimizer module toggle

Event Handler Flow:

1. Verify connection is enabled
2. Verify module is enabled (if applicable)
3. Validate event data
4. Process event
5. Log activity
6. Return unified JSON response

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6.3 Webhook Activity Logging ✅

Files Created:

• includes/class-igny8-webhook-logs.php - Logging functions

Features:

• Log Storage: WordPress options (last 500 logs)
• Log Fields:
  • Event type
  • Event data
  • IP address
  • User agent
  • Status (received, processed, failed)
  • Response data
  • Timestamps (received_at, processed_at)
  • Error messages

Functions:

• igny8_log_webhook_activity() - Log webhook receipt
• igny8_update_webhook_log() - Update log with processing result
• igny8_get_webhook_logs() - Retrieve logs with filtering
• igny8_clear_old_webhook_logs() - Cleanup old logs

UI Display:

• Recent webhook activity table in settings page
• Shows last 10 webhook events
• Displays event type, status, and timestamp

---

Link Queue System ✅

Files Created:

• includes/class-igny8-link-queue.php - Link insertion queue

Features:

• Queue Storage: WordPress options
• Queue Processing: Cron-based (processes 10 items per run)
• Retry Logic: Up to 3 attempts per link
• Status Tracking: pending, completed, failed

Link Insertion Logic:

1. Finds anchor text in post content
2. Wraps anchor with link tag
3. Avoids duplicate links
4. Falls back to appending link if anchor not found

Queue Management:

• Automatic processing via cron
• Manual trigger available
• Queue size limit (1000 items)
• Status tracking per item

---

Connection Checks

All handlers check connection status:

✅ Webhook Handler (verify_webhook_secret)

• Checks igny8_is_connection_enabled() before allowing webhook

✅ Event Handlers (handle_webhook, handle_task_published, etc.)

• Double-checks connection enabled before processing
• Returns error if connection disabled

✅ Link Queue (igny8_queue_link_insertion, igny8_process_link_queue)

• Checks connection enabled before queuing/processing

✅ REST API Endpoints (existing endpoints)

• Updated to check connection enabled
• Returns 403 if connection disabled

---

Settings UI Enhancements

New Sections Added:

1. Webhook Configuration

   • Webhook URL display with copy button
   • Webhook secret display with copy button
   • Regenerate secret button

2. Link Queue

   • Shows pending links count
   • Displays queue table (last 10 items)
   • Shows post ID, anchor, target URL, status

3. Recent Webhook Activity

   • Shows last 10 webhook events
   • Displays event type, status, timestamp
   • Color-coded status badges

---

Security Features

1. HMAC Signature Verification

   • Uses SHA-256 HMAC
   • Compares request body signature
   • Prevents replay attacks

2. Connection Toggle Protection

   • All endpoints check connection status
   • Webhooks rejected if connection disabled
   • Clear error messages

3. Module Toggle Respect

   • Events only processed if module enabled
   • Graceful error responses

4. Input Validation

   • All parameters sanitized
   • Required fields validated
   • Type checking

---

API Response Format

All webhook responses follow unified JSON format:

Success:

{
  "success": true,
  "message": "Event processed",
  "data": { ... }
}

Error:

{
  "success": false,
  "error": "Error message",
  "code": "error_code"
}

---

Integration Points

Modified Files:

• igny8-bridge.php - Added webhook classes loading
• includes/functions.php - Added webhook secret functions
• includes/class-igny8-rest-api.php - Added connection checks
• admin/settings.php - Added webhook UI sections
• admin/class-admin.php - Added secret regeneration handler

New Dependencies:

• None (uses existing WordPress functions)

---

Testing Checklist

• Webhook endpoint accessible at /wp-json/igny8/v1/event
• Signature verification works correctly
• Invalid signatures are rejected
• Connection disabled blocks webhooks
• Task published event creates/updates posts
• Link recommendation queues links
• Link queue processes links correctly
• Optimizer events update post meta
• Webhook logs are created and updated
• Settings UI displays webhook info
• Secret regeneration works
• All events respect module toggles
• All events respect connection toggle

---

Notes

1. Webhook Secret: Auto-generated on first use. Must be configured in IGNY8 SaaS app.

2. Link Queue: Processes 10 items per cron run to prevent timeouts. Can be adjusted.

3. Log Retention: Keeps last 500 logs. Older logs can be cleared manually.

4. Signature Header: IGNY8 SaaS must send X-IGNY8-Signature header with HMAC-SHA256 signature of request body.

5. Connection Toggle: All webhook handlers check connection status before processing. This ensures no data is processed when connection is disabled.

6. Module Toggles: Each event type checks if its module is enabled before processing.

---

Webhook Payload Examples

Task Published

{
  "event": "task_published",
  "data": {
    "task_id": 123,
    "status": "completed"
  }
}

Link Recommendation

{
  "event": "link_recommendation",
  "data": {
    "post_id": 456,
    "target_url": "https://example.com/page",
    "anchor": "example link",
    "priority": "normal"
  }
}

Optimizer Request

{
  "event": "optimizer_job_completed",
  "data": {
    "post_id": 456,
    "job_id": 789,
    "status": "completed",
    "score_changes": { ... },
    "recommendations": [ ... ]
  }
}

---

Next Steps

Phase 6 is complete. All webhook functionality is implemented with proper security, logging, and connection checks.