feat: implement n8n integration improvements and protocol version negotiation
- Add intelligent protocol version negotiation (2024-11-05 for n8n, 2025-03-26 for standard clients) - Fix memory leak potential with async cleanup and connection close handling - Enhance error sanitization for production environments - Add schema validation for n8n nested output workaround - Improve Docker security with unpredictable UIDs/GIDs - Create n8n-friendly tool descriptions to reduce schema validation errors - Add comprehensive protocol negotiation test suite Addresses code review feedback: - Protocol version inconsistency resolved - Memory management improved - Error information leakage fixed - Docker security enhanced 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
@@ -3,6 +3,27 @@
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# Script to test n8n integration with n8n-mcp server
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set -e
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# Check for command line arguments
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if [ "$1" == "--clear-api-key" ] || [ "$1" == "-c" ]; then
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echo "🗑️ Clearing saved n8n API key..."
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rm -f "$HOME/.n8n-mcp-test/.n8n-api-key"
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echo "✅ API key cleared. You'll be prompted for a new key on next run."
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exit 0
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fi
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if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
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echo "Usage: $0 [options]"
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echo ""
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echo "Options:"
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echo " -h, --help Show this help message"
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echo " -c, --clear-api-key Clear the saved n8n API key"
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echo ""
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echo "The script will save your n8n API key on first use and reuse it on"
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echo "subsequent runs. You can override the saved key at runtime or clear"
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echo "it with the --clear-api-key option."
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exit 0
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fi
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echo "🚀 Starting n8n integration test environment..."
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# Colors for output
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@@ -19,6 +40,8 @@ AUTH_TOKEN="test-token-for-n8n-testing-minimum-32-chars"
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# n8n data directory for persistence
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N8N_DATA_DIR="$HOME/.n8n-mcp-test"
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# API key storage file
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API_KEY_FILE="$N8N_DATA_DIR/.n8n-api-key"
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# Function to detect OS
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detect_os() {
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@@ -199,25 +222,61 @@ for i in {1..30}; do
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sleep 1
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done
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# Guide user to get API key
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echo -e "\n${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo -e "${YELLOW}🔑 n8n API Key Setup${NC}"
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echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo -e "\nTo enable n8n management tools, you need to create an API key:"
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echo -e "\n${GREEN}Steps:${NC}"
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echo -e " 1. Open n8n in your browser: ${BLUE}http://localhost:${N8N_PORT}${NC}"
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echo -e " 2. Click on your user menu (top right)"
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echo -e " 3. Go to 'Settings'"
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echo -e " 4. Navigate to 'API'"
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echo -e " 5. Click 'Create API Key'"
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echo -e " 6. Give it a name (e.g., 'n8n-mcp')"
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echo -e " 7. Copy the generated API key"
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echo -e "\n${YELLOW}Note: If this is your first time, you'll need to create an account first.${NC}"
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echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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# Check for saved API key
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if [ -f "$API_KEY_FILE" ]; then
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# Read saved API key
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N8N_API_KEY=$(cat "$API_KEY_FILE" 2>/dev/null || echo "")
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if [ -n "$N8N_API_KEY" ]; then
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echo -e "\n${GREEN}✅ Using saved n8n API key${NC}"
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echo -e "${YELLOW} To use a different key, delete: ${API_KEY_FILE}${NC}"
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# Give user a chance to override
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echo -e "\n${YELLOW}Press Enter to continue with saved key, or paste a new API key:${NC}"
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read -r NEW_API_KEY
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if [ -n "$NEW_API_KEY" ]; then
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N8N_API_KEY="$NEW_API_KEY"
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# Save the new key
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echo "$N8N_API_KEY" > "$API_KEY_FILE"
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chmod 600 "$API_KEY_FILE"
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echo -e "${GREEN}✅ New API key saved${NC}"
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fi
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else
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# File exists but is empty, remove it
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rm -f "$API_KEY_FILE"
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fi
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fi
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# Wait for API key input
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echo -e "\n${YELLOW}Please paste your n8n API key here (or press Enter to skip):${NC}"
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read -r N8N_API_KEY
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# If no saved key, prompt for one
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if [ -z "$N8N_API_KEY" ]; then
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# Guide user to get API key
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echo -e "\n${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo -e "${YELLOW}🔑 n8n API Key Setup${NC}"
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echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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echo -e "\nTo enable n8n management tools, you need to create an API key:"
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echo -e "\n${GREEN}Steps:${NC}"
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echo -e " 1. Open n8n in your browser: ${BLUE}http://localhost:${N8N_PORT}${NC}"
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echo -e " 2. Click on your user menu (top right)"
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echo -e " 3. Go to 'Settings'"
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echo -e " 4. Navigate to 'API'"
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echo -e " 5. Click 'Create API Key'"
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echo -e " 6. Give it a name (e.g., 'n8n-mcp')"
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echo -e " 7. Copy the generated API key"
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echo -e "\n${YELLOW}Note: If this is your first time, you'll need to create an account first.${NC}"
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echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
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# Wait for API key input
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echo -e "\n${YELLOW}Please paste your n8n API key here (or press Enter to skip):${NC}"
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read -r N8N_API_KEY
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# Save the API key if provided
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if [ -n "$N8N_API_KEY" ]; then
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echo "$N8N_API_KEY" > "$API_KEY_FILE"
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chmod 600 "$API_KEY_FILE"
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echo -e "${GREEN}✅ API key saved for future use${NC}"
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fi
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fi
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# Check if API key was provided
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if [ -z "$N8N_API_KEY" ]; then
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