Luca Sacchi Ricciardi
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5aab19626f
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feat: implement OpenRouter AI integration in n8n workflow
Add 'Call OpenRouter' node to LogWhisperer_Ingest workflow:
New Node Features:
- Model: openai/gpt-4o-mini via OpenRouter API
- System prompt with Metodo Sacchi (Safety First, Little Often, Double Check)
- Timeout: 10 seconds with AbortController
- Log truncation: max 2000 characters
- Required headers: Authorization, HTTP-Referer, X-Title
- Error handling with graceful fallback response
- Output: JSON with ai_analysis, ai_status, ai_timestamp, ai_model
Workflow Flow:
Webhook → HMAC Validation → Data Validation → Store Log → Call OpenRouter → Critical Severity Check → Response
Test Suite (workflows/test_openrouter.js):
- 10 comprehensive tests covering:
- Input/output structure validation
- Log truncation logic
- OpenRouter API payload format
- Required HTTP headers
- AI response structure
- Fallback error handling
- Timeout configuration
- Dangerous command patterns
- System Prompt Metodo Sacchi validation
- Workflow connections
Environment Variables Required:
- OPENROUTER_API_KEY
- OPENROUTER_SITE_URL (optional, defaults to https://logwhisperer.ai)
- OPENROUTER_APP_NAME (optional, defaults to LogWhispererAI)
Next Steps:
1. Configure environment variables in n8n
2. Import updated workflow to n8n instance
3. Configure PostgreSQL credentials
4. Test with sample log payload
Refs: docs/specs/ai_pipeline.md (section 4.1)
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2026-04-02 19:40:42 +02:00 |
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Luca Sacchi Ricciardi
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3c406ef405
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feat: create n8n workflow for secure log ingestion
Implement LogWhisperer_Ingest workflow for Sprint 2 Feature 2:
Workflow Components:
- Webhook trigger: POST /webhook/logwhisperer/ingest
- HMAC-SHA256 validation with timing-safe comparison
- Anti-replay protection (5min timestamp window)
- Data validation: UUID client_id, severity levels, non-empty logs
- PostgreSQL storage with logs table auto-creation
- Conditional routing for critical severity logs
Security Features:
- HMAC signature verification (X-LogWhisperer-Signature header)
- Timestamp validation preventing replay attacks
- Input sanitization before DB insert
- Environment variable LOGWHISPERER_SECRET for shared secret
Documentation:
- workflows/logwhisperer_ingest.json: Export JSON workflow
- workflows/README.md: Installation and usage guide
- workflows/INTEGRATION.md: Bash script integration guide
- workflows/REPORT.md: Implementation report
- workflows/test_workflow.sh: Automated test suite
Metodo Sacchi Applied:
- Safety First: HMAC validation before any processing
- Little Often: Modular nodes, each with single responsibility
- Double Check: Test suite validates all security requirements
Next Steps:
- Configure LOGWHISPERER_SECRET in n8n environment
- Import workflow to n8n instance
- Test end-to-end with secure_logwhisperer.sh
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2026-04-02 19:01:40 +02:00 |
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