af1e94061c
This commit provides a comprehensive fix for the certificate download 404 errors:
## Problem
Certificate URLs (/hvac-certificate/{token}/) were returning 404 errors even after deployment because WordPress rewrite rules weren't properly registered or flushed.
## Solutions Implemented
### 1. Enhanced Plugin Activation
- Certificate security class is now initialized BEFORE flushing rewrite rules during activation
- This ensures the custom rewrite rule 'hvac-certificate/([^/]+)/?$' is registered
- Activation now properly adds the rule and flushes to make it active
### 2. Added Certificate Fix Admin Page
- New diagnostics page at /certificate-fix/ (admin only)
- Shows certificate system status including:
- Database table status and counts
- Certificate file directory status
- Recent certificate activity
- Includes 'Flush Rewrite Rules' button for manual fixing
- Provides direct test link for rewrite rule verification
### 3. Rewrite Rules Test Tool
- Added test script accessible at /wp-admin/admin.php?test_certificate_rewrite=1
- Shows whether certificate rewrite rules are registered
- Verifies query vars are properly set
- Can manually add and flush rules if missing
### 4. Manual Flush Capability
- Admins can trigger flush via /wp-admin/?hvac_flush_rewrite=1
- Useful for debugging without accessing Certificate Fix page
## User Instructions
If certificate URLs still return 404:
1. Go to /certificate-fix/ page
2. Click 'Flush Rewrite Rules' button
3. Test certificate viewing again
The certificate download system uses secure token-based URLs that expire after 1 hour for security. These URLs must be properly registered with WordPress rewrite rules to function.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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