feat: implement comprehensive workflow validation (v2.5.0)
Major Features: - Add ExpressionValidator for n8n expression syntax validation - Add WorkflowValidator for complete workflow structure validation - Add three new MCP tools: validate_workflow, validate_workflow_connections, validate_workflow_expressions Validation Capabilities: - ✅ Detects workflow cycles (infinite loops) - ✅ Validates n8n expressions with syntax checking - ✅ Checks node references in expressions - ✅ Identifies orphaned nodes and missing connections - ✅ Supports multiple node type formats (n8n-nodes-base, @n8n/n8n-nodes-langchain) - ✅ Provides actionable error messages and suggestions Testing & Analysis: - Add test scripts for workflow validation - Add template validation testing - Add validation summary analysis tool - Fixed expression validation false positives - Handle node type normalization correctly Results from testing 50 real n8n templates: - 70.9% of errors are from informal sticky notes - Expression validation catches real syntax issues - Cycle detection prevents runtime infinite loops - Successfully validates both core and LangChain nodes 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
27
CLAUDE.md
27
CLAUDE.md
@@ -6,7 +6,21 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
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n8n-mcp is a comprehensive documentation and knowledge server that provides AI assistants with complete access to n8n node information through the Model Context Protocol (MCP). It serves as a bridge between n8n's workflow automation platform and AI models, enabling them to understand and work with n8n nodes effectively.
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n8n-mcp is a comprehensive documentation and knowledge server that provides AI assistants with complete access to n8n node information through the Model Context Protocol (MCP). It serves as a bridge between n8n's workflow automation platform and AI models, enabling them to understand and work with n8n nodes effectively.
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## ✅ Latest Updates (v2.4.2)
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## ✅ Latest Updates (v2.5.0)
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### Update (v2.5.0) - Complete Workflow Validation:
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- ✅ **NEW: validate_workflow tool** - Validate entire workflows before deployment
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- ✅ **NEW: validate_workflow_connections tool** - Check workflow structure and connections
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- ✅ **NEW: validate_workflow_expressions tool** - Validate all n8n expressions in a workflow
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- ✅ **NEW: ExpressionValidator** - Comprehensive n8n expression syntax validation
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- ✅ **NEW: WorkflowValidator** - Complete workflow structure and logic validation
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- ✅ Detects cycles (infinite loops) in workflows
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- ✅ Validates node references in expressions ($node["Node Name"])
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- ✅ Checks for orphaned nodes and missing connections
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- ✅ Expression syntax validation with common mistake detection
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- ✅ Workflow best practices analysis with suggestions
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- ✅ Supports partial validation (nodes only, connections only, expressions only)
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- ✅ Test coverage for all validation scenarios
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### Update (v2.4.2) - Enhanced Node Configuration Validation:
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### Update (v2.4.2) - Enhanced Node Configuration Validation:
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- ✅ **NEW: validate_node_operation tool** - Operation-aware validation with 80%+ fewer false positives
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- ✅ **NEW: validate_node_operation tool** - Operation-aware validation with 80%+ fewer false positives
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@@ -103,7 +117,9 @@ src/
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│ ├── config-validator.ts # Configuration validation (NEW in v2.4)
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│ ├── config-validator.ts # Configuration validation (NEW in v2.4)
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│ ├── enhanced-config-validator.ts # Operation-aware validation (NEW in v2.4.2)
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│ ├── enhanced-config-validator.ts # Operation-aware validation (NEW in v2.4.2)
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│ ├── node-specific-validators.ts # Node-specific validation logic (NEW in v2.4.2)
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│ ├── node-specific-validators.ts # Node-specific validation logic (NEW in v2.4.2)
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│ └── property-dependencies.ts # Dependency analysis (NEW in v2.4)
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│ ├── property-dependencies.ts # Dependency analysis (NEW in v2.4)
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│ ├── expression-validator.ts # n8n expression syntax validation (NEW in v2.5.0)
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│ └── workflow-validator.ts # Complete workflow validation (NEW in v2.5.0)
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├── templates/
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├── templates/
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│ ├── template-fetcher.ts # Fetches templates from n8n.io API (NEW in v2.4.1)
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│ ├── template-fetcher.ts # Fetches templates from n8n.io API (NEW in v2.4.1)
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│ ├── template-repository.ts # Template database operations (NEW in v2.4.1)
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│ ├── template-repository.ts # Template database operations (NEW in v2.4.1)
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@@ -114,6 +130,7 @@ src/
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│ ├── test-nodes.ts # Critical node tests
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│ ├── test-nodes.ts # Critical node tests
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│ ├── test-essentials.ts # Test new essentials tools (NEW in v2.4)
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│ ├── test-essentials.ts # Test new essentials tools (NEW in v2.4)
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│ ├── test-enhanced-validation.ts # Test enhanced validation (NEW in v2.4.2)
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│ ├── test-enhanced-validation.ts # Test enhanced validation (NEW in v2.4.2)
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│ ├── test-workflow-validation.ts # Test workflow validation (NEW in v2.5.0)
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│ ├── fetch-templates.ts # Fetch workflow templates from n8n.io (NEW in v2.4.1)
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│ ├── fetch-templates.ts # Fetch workflow templates from n8n.io (NEW in v2.4.1)
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│ └── test-templates.ts # Test template functionality (NEW in v2.4.1)
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│ └── test-templates.ts # Test template functionality (NEW in v2.4.1)
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├── mcp/
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├── mcp/
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@@ -157,6 +174,9 @@ npm run test-nodes # Test critical node properties/operations
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npm run fetch:templates # Fetch workflow templates from n8n.io (manual)
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npm run fetch:templates # Fetch workflow templates from n8n.io (manual)
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npm run test:templates # Test template functionality
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npm run test:templates # Test template functionality
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# Workflow Validation Commands:
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npm run test:workflow-validation # Test workflow validation features
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# Dependency Update Commands:
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# Dependency Update Commands:
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npm run update:n8n:check # Check for n8n updates (dry run)
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npm run update:n8n:check # Check for n8n updates (dry run)
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npm run update:n8n # Update n8n packages to latest versions
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npm run update:n8n # Update n8n packages to latest versions
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@@ -264,6 +284,9 @@ The project implements MCP (Model Context Protocol) to expose n8n node documenta
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- `list_tasks` - **NEW** List all available task templates
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- `list_tasks` - **NEW** List all available task templates
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- `validate_node_operation` - **NEW v2.4.2** Verify node configuration with operation awareness and profiles
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- `validate_node_operation` - **NEW v2.4.2** Verify node configuration with operation awareness and profiles
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- `validate_node_minimal` - **NEW v2.4.2** Quick validation for just required fields
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- `validate_node_minimal` - **NEW v2.4.2** Quick validation for just required fields
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- `validate_workflow` - **NEW v2.5.0** Validate entire workflows before deployment
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- `validate_workflow_connections` - **NEW v2.5.0** Check workflow structure and connections
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- `validate_workflow_expressions` - **NEW v2.5.0** Validate all n8n expressions in a workflow
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- `get_property_dependencies` - **NEW** Analyze property dependencies and visibility conditions
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- `get_property_dependencies` - **NEW** Analyze property dependencies and visibility conditions
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- `list_ai_tools` - List all AI-capable nodes (usableAsTool: true)
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- `list_ai_tools` - List all AI-capable nodes (usableAsTool: true)
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- `get_node_documentation` - Get parsed documentation from n8n-docs
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- `get_node_documentation` - Get parsed documentation from n8n-docs
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BIN
data/nodes.db
BIN
data/nodes.db
Binary file not shown.
131
docs/_General__Scrape_with_HTTP_tool.json
Normal file
131
docs/_General__Scrape_with_HTTP_tool.json
Normal file
@@ -0,0 +1,131 @@
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{
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"name": "[General] Scrape with HTTP tool",
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"nodes": [
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{
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"parameters": {
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"workflowInputs": {
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"values": [
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{
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"name": "url"
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}
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]
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}
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},
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"type": "n8n-nodes-base.executeWorkflowTrigger",
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"typeVersion": 1.1,
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"position": [
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0,
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0
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],
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"id": "5346cc19-24b6-4a35-aa97-8415f4bea3d6",
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"name": "When Executed by Another Workflow"
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},
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{
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"parameters": {
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"url": "={{ $json.url }}",
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"options": {}
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},
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"type": "n8n-nodes-base.httpRequest",
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"typeVersion": 4.2,
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"position": [
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240,
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0
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],
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"id": "b0883f0f-a325-4d8f-9323-46ec5ac259f2",
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"name": "HTTP Request3"
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},
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{
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"parameters": {
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"operation": "extractHtmlContent",
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"extractionValues": {
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"values": [
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{
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"cssSelector": "body",
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"skipSelectors": "img"
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}
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]
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},
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"options": {
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"cleanUpText": true
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}
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},
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"type": "n8n-nodes-base.html",
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"typeVersion": 1.2,
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"position": [
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460,
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0
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],
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"id": "413d2e39-a958-44ad-b8bf-5b2ff473977f",
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"name": "HTML"
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}
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],
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"pinData": {
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"When Executed by Another Workflow": [
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{
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"json": {
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"url": "https://www.onet.pl"
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}
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}
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]
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},
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"connections": {
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"When Executed by Another Workflow": {
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"main": [
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[
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{
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"node": "HTTP Request3",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"HTTP Request3": {
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"main": [
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[
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{
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"node": "HTML",
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"type": "main",
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"index": 0
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}
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]
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]
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},
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"HTML": {
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"main": [
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[]
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]
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}
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},
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"active": false,
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"settings": {
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"executionOrder": "v1",
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"saveDataSuccessExecution": "none",
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"callerPolicy": "workflowsFromSameOwner"
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},
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"versionId": "e0f02ae3-2abc-4fa4-a201-dc9519d3b77f",
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"meta": {
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"instanceId": "f90d4c09665c36771f63f8fb50686f33a5a32ed6de3eadcceb02fed4e27faf46"
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},
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"id": "mu4NBMrRsGq4xAGs",
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"tags": [
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{
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"createdAt": "2025-02-17T03:16:20.972Z",
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"updatedAt": "2025-02-17T03:16:20.972Z",
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"id": "kEJjx5SVonwfM7TL",
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"name": "AI tool"
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},
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{
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"createdAt": "2025-02-20T20:00:37.258Z",
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"updatedAt": "2025-02-20T20:00:37.258Z",
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"id": "iWK0KA4yRf7NGdav",
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"name": "general"
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},
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{
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"createdAt": "2025-02-20T21:14:11.867Z",
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"updatedAt": "2025-02-20T21:14:11.867Z",
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"id": "MmgG3evIY7x5HI86",
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"name": "stage: production"
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}
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]
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}
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@@ -25,6 +25,8 @@
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"fetch:templates": "node dist/scripts/fetch-templates.js",
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"fetch:templates": "node dist/scripts/fetch-templates.js",
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"fetch:templates:robust": "node dist/scripts/fetch-templates-robust.js",
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"fetch:templates:robust": "node dist/scripts/fetch-templates-robust.js",
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"test:templates": "node dist/scripts/test-templates.js",
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"test:templates": "node dist/scripts/test-templates.js",
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"test:workflow-validation": "node dist/scripts/test-workflow-validation.js",
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"test:template-validation": "node dist/scripts/test-template-validation.js",
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"db:rebuild": "node dist/scripts/rebuild-database.js",
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"db:rebuild": "node dist/scripts/rebuild-database.js",
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"db:init": "node -e \"new (require('./dist/services/sqlite-storage-service').SQLiteStorageService)(); console.log('Database initialized')\"",
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"db:init": "node -e \"new (require('./dist/services/sqlite-storage-service').SQLiteStorageService)(); console.log('Database initialized')\"",
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"docs:rebuild": "ts-node src/scripts/rebuild-database.ts"
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"docs:rebuild": "ts-node src/scripts/rebuild-database.ts"
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@@ -19,6 +19,7 @@ import { EnhancedConfigValidator, ValidationMode, ValidationProfile } from '../s
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import { PropertyDependencies } from '../services/property-dependencies';
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import { PropertyDependencies } from '../services/property-dependencies';
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import { SimpleCache } from '../utils/simple-cache';
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import { SimpleCache } from '../utils/simple-cache';
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import { TemplateService } from '../templates/template-service';
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import { TemplateService } from '../templates/template-service';
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import { WorkflowValidator } from '../services/workflow-validator';
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interface NodeRow {
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interface NodeRow {
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node_type: string;
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node_type: string;
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@@ -202,6 +203,12 @@ export class N8NDocumentationMCPServer {
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return this.searchTemplates(args.query, args.limit);
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return this.searchTemplates(args.query, args.limit);
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case 'get_templates_for_task':
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case 'get_templates_for_task':
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return this.getTemplatesForTask(args.task);
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return this.getTemplatesForTask(args.task);
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case 'validate_workflow':
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return this.validateWorkflow(args.workflow, args.options);
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case 'validate_workflow_connections':
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return this.validateWorkflowConnections(args.workflow);
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case 'validate_workflow_expressions':
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return this.validateWorkflowExpressions(args.workflow);
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default:
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default:
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throw new Error(`Unknown tool: ${name}`);
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throw new Error(`Unknown tool: ${name}`);
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}
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}
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@@ -1149,6 +1156,203 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
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return descriptions[task] || 'Workflow templates for this task';
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return descriptions[task] || 'Workflow templates for this task';
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}
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}
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private async validateWorkflow(workflow: any, options?: any): Promise<any> {
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await this.ensureInitialized();
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if (!this.repository) throw new Error('Repository not initialized');
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// Create workflow validator instance
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const validator = new WorkflowValidator(
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this.repository,
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EnhancedConfigValidator
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);
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|
try {
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const result = await validator.validateWorkflow(workflow, options);
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// Format the response for better readability
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const response: any = {
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valid: result.valid,
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summary: {
|
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totalNodes: result.statistics.totalNodes,
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||||||
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enabledNodes: result.statistics.enabledNodes,
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triggerNodes: result.statistics.triggerNodes,
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validConnections: result.statistics.validConnections,
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invalidConnections: result.statistics.invalidConnections,
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expressionsValidated: result.statistics.expressionsValidated,
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errorCount: result.errors.length,
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warningCount: result.warnings.length
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||||||
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}
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};
|
||||||
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||||||
|
if (result.errors.length > 0) {
|
||||||
|
response.errors = result.errors.map(e => ({
|
||||||
|
node: e.nodeName || 'workflow',
|
||||||
|
message: e.message,
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||||||
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details: e.details
|
||||||
|
}));
|
||||||
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}
|
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|
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|
if (result.warnings.length > 0) {
|
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response.warnings = result.warnings.map(w => ({
|
||||||
|
node: w.nodeName || 'workflow',
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message: w.message,
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details: w.details
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}));
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}
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|
if (result.suggestions.length > 0) {
|
||||||
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response.suggestions = result.suggestions;
|
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|
}
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|
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return response;
|
||||||
|
} catch (error) {
|
||||||
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logger.error('Error validating workflow:', error);
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||||||
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return {
|
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valid: false,
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error: error instanceof Error ? error.message : 'Unknown error validating workflow',
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|
tip: 'Ensure the workflow JSON includes nodes array and connections object'
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||||||
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};
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}
|
||||||
|
}
|
||||||
|
|
||||||
|
private async validateWorkflowConnections(workflow: any): Promise<any> {
|
||||||
|
await this.ensureInitialized();
|
||||||
|
if (!this.repository) throw new Error('Repository not initialized');
|
||||||
|
|
||||||
|
// Create workflow validator instance
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||||||
|
const validator = new WorkflowValidator(
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|
this.repository,
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||||||
|
EnhancedConfigValidator
|
||||||
|
);
|
||||||
|
|
||||||
|
try {
|
||||||
|
// Validate only connections
|
||||||
|
const result = await validator.validateWorkflow(workflow, {
|
||||||
|
validateNodes: false,
|
||||||
|
validateConnections: true,
|
||||||
|
validateExpressions: false
|
||||||
|
});
|
||||||
|
|
||||||
|
const response: any = {
|
||||||
|
valid: result.errors.length === 0,
|
||||||
|
statistics: {
|
||||||
|
totalNodes: result.statistics.totalNodes,
|
||||||
|
triggerNodes: result.statistics.triggerNodes,
|
||||||
|
validConnections: result.statistics.validConnections,
|
||||||
|
invalidConnections: result.statistics.invalidConnections
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Filter to only connection-related issues
|
||||||
|
const connectionErrors = result.errors.filter(e =>
|
||||||
|
e.message.includes('connection') ||
|
||||||
|
e.message.includes('cycle') ||
|
||||||
|
e.message.includes('orphaned')
|
||||||
|
);
|
||||||
|
|
||||||
|
const connectionWarnings = result.warnings.filter(w =>
|
||||||
|
w.message.includes('connection') ||
|
||||||
|
w.message.includes('orphaned') ||
|
||||||
|
w.message.includes('trigger')
|
||||||
|
);
|
||||||
|
|
||||||
|
if (connectionErrors.length > 0) {
|
||||||
|
response.errors = connectionErrors.map(e => ({
|
||||||
|
node: e.nodeName || 'workflow',
|
||||||
|
message: e.message
|
||||||
|
}));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (connectionWarnings.length > 0) {
|
||||||
|
response.warnings = connectionWarnings.map(w => ({
|
||||||
|
node: w.nodeName || 'workflow',
|
||||||
|
message: w.message
|
||||||
|
}));
|
||||||
|
}
|
||||||
|
|
||||||
|
return response;
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Error validating workflow connections:', error);
|
||||||
|
return {
|
||||||
|
valid: false,
|
||||||
|
error: error instanceof Error ? error.message : 'Unknown error validating connections'
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private async validateWorkflowExpressions(workflow: any): Promise<any> {
|
||||||
|
await this.ensureInitialized();
|
||||||
|
if (!this.repository) throw new Error('Repository not initialized');
|
||||||
|
|
||||||
|
// Create workflow validator instance
|
||||||
|
const validator = new WorkflowValidator(
|
||||||
|
this.repository,
|
||||||
|
EnhancedConfigValidator
|
||||||
|
);
|
||||||
|
|
||||||
|
try {
|
||||||
|
// Validate only expressions
|
||||||
|
const result = await validator.validateWorkflow(workflow, {
|
||||||
|
validateNodes: false,
|
||||||
|
validateConnections: false,
|
||||||
|
validateExpressions: true
|
||||||
|
});
|
||||||
|
|
||||||
|
const response: any = {
|
||||||
|
valid: result.errors.length === 0,
|
||||||
|
statistics: {
|
||||||
|
totalNodes: result.statistics.totalNodes,
|
||||||
|
expressionsValidated: result.statistics.expressionsValidated
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Filter to only expression-related issues
|
||||||
|
const expressionErrors = result.errors.filter(e =>
|
||||||
|
e.message.includes('Expression') ||
|
||||||
|
e.message.includes('$') ||
|
||||||
|
e.message.includes('{{')
|
||||||
|
);
|
||||||
|
|
||||||
|
const expressionWarnings = result.warnings.filter(w =>
|
||||||
|
w.message.includes('Expression') ||
|
||||||
|
w.message.includes('$') ||
|
||||||
|
w.message.includes('{{')
|
||||||
|
);
|
||||||
|
|
||||||
|
if (expressionErrors.length > 0) {
|
||||||
|
response.errors = expressionErrors.map(e => ({
|
||||||
|
node: e.nodeName || 'workflow',
|
||||||
|
message: e.message
|
||||||
|
}));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (expressionWarnings.length > 0) {
|
||||||
|
response.warnings = expressionWarnings.map(w => ({
|
||||||
|
node: w.nodeName || 'workflow',
|
||||||
|
message: w.message
|
||||||
|
}));
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add tips for common expression issues
|
||||||
|
if (expressionErrors.length > 0 || expressionWarnings.length > 0) {
|
||||||
|
response.tips = [
|
||||||
|
'Use {{ }} to wrap expressions',
|
||||||
|
'Reference data with $json.propertyName',
|
||||||
|
'Reference other nodes with $node["Node Name"].json',
|
||||||
|
'Use $input.item for input data in loops'
|
||||||
|
];
|
||||||
|
}
|
||||||
|
|
||||||
|
return response;
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Error validating workflow expressions:', error);
|
||||||
|
return {
|
||||||
|
valid: false,
|
||||||
|
error: error instanceof Error ? error.message : 'Unknown error validating expressions'
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
async run(): Promise<void> {
|
async run(): Promise<void> {
|
||||||
// Ensure database is initialized before starting server
|
// Ensure database is initialized before starting server
|
||||||
await this.ensureInitialized();
|
await this.ensureInitialized();
|
||||||
|
|||||||
@@ -318,6 +318,75 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
|
|||||||
required: ['task'],
|
required: ['task'],
|
||||||
},
|
},
|
||||||
},
|
},
|
||||||
|
{
|
||||||
|
name: 'validate_workflow',
|
||||||
|
description: `Validate an entire n8n workflow before deployment. Checks: workflow structure, node connections, expressions, best practices, and more. Returns comprehensive validation report with errors, warnings, and suggestions. Essential for AI agents building complete workflows. Prevents common workflow errors before they happen.`,
|
||||||
|
inputSchema: {
|
||||||
|
type: 'object',
|
||||||
|
properties: {
|
||||||
|
workflow: {
|
||||||
|
type: 'object',
|
||||||
|
description: 'The complete workflow JSON to validate. Must include nodes array and connections object.',
|
||||||
|
},
|
||||||
|
options: {
|
||||||
|
type: 'object',
|
||||||
|
properties: {
|
||||||
|
validateNodes: {
|
||||||
|
type: 'boolean',
|
||||||
|
description: 'Validate individual node configurations. Default true.',
|
||||||
|
default: true,
|
||||||
|
},
|
||||||
|
validateConnections: {
|
||||||
|
type: 'boolean',
|
||||||
|
description: 'Validate node connections and flow. Default true.',
|
||||||
|
default: true,
|
||||||
|
},
|
||||||
|
validateExpressions: {
|
||||||
|
type: 'boolean',
|
||||||
|
description: 'Validate n8n expressions syntax and references. Default true.',
|
||||||
|
default: true,
|
||||||
|
},
|
||||||
|
profile: {
|
||||||
|
type: 'string',
|
||||||
|
enum: ['minimal', 'runtime', 'ai-friendly', 'strict'],
|
||||||
|
description: 'Validation profile for node validation. Default "runtime".',
|
||||||
|
default: 'runtime',
|
||||||
|
},
|
||||||
|
},
|
||||||
|
description: 'Optional validation settings',
|
||||||
|
},
|
||||||
|
},
|
||||||
|
required: ['workflow'],
|
||||||
|
},
|
||||||
|
},
|
||||||
|
{
|
||||||
|
name: 'validate_workflow_connections',
|
||||||
|
description: `Validate only the connections in a workflow. Checks: all connections point to existing nodes, no cycles (infinite loops), no orphaned nodes, proper trigger node setup. Faster than full validation when you only need to check workflow structure.`,
|
||||||
|
inputSchema: {
|
||||||
|
type: 'object',
|
||||||
|
properties: {
|
||||||
|
workflow: {
|
||||||
|
type: 'object',
|
||||||
|
description: 'The workflow JSON with nodes array and connections object.',
|
||||||
|
},
|
||||||
|
},
|
||||||
|
required: ['workflow'],
|
||||||
|
},
|
||||||
|
},
|
||||||
|
{
|
||||||
|
name: 'validate_workflow_expressions',
|
||||||
|
description: `Validate all n8n expressions in a workflow. Checks: expression syntax ({{ }}), variable references ($json, $node, $input), node references exist, context availability. Returns specific errors with locations. Use this to catch expression errors before runtime.`,
|
||||||
|
inputSchema: {
|
||||||
|
type: 'object',
|
||||||
|
properties: {
|
||||||
|
workflow: {
|
||||||
|
type: 'object',
|
||||||
|
description: 'The workflow JSON to check for expression errors.',
|
||||||
|
},
|
||||||
|
},
|
||||||
|
required: ['workflow'],
|
||||||
|
},
|
||||||
|
},
|
||||||
];
|
];
|
||||||
|
|
||||||
/**
|
/**
|
||||||
|
|||||||
137
src/scripts/test-single-workflow.ts
Normal file
137
src/scripts/test-single-workflow.ts
Normal file
@@ -0,0 +1,137 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test validation of a single workflow
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { existsSync, readFileSync } from 'fs';
|
||||||
|
import path from 'path';
|
||||||
|
import { NodeRepository } from '../database/node-repository';
|
||||||
|
import { createDatabaseAdapter } from '../database/database-adapter';
|
||||||
|
import { WorkflowValidator } from '../services/workflow-validator';
|
||||||
|
import { EnhancedConfigValidator } from '../services/enhanced-config-validator';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[test-single-workflow]' });
|
||||||
|
|
||||||
|
async function testSingleWorkflow() {
|
||||||
|
// Read the workflow file
|
||||||
|
const workflowPath = process.argv[2];
|
||||||
|
if (!workflowPath) {
|
||||||
|
logger.error('Please provide a workflow file path');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!existsSync(workflowPath)) {
|
||||||
|
logger.error(`Workflow file not found: ${workflowPath}`);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
logger.info(`Testing workflow: ${workflowPath}\n`);
|
||||||
|
|
||||||
|
// Initialize database
|
||||||
|
const dbPath = path.join(process.cwd(), 'data', 'nodes.db');
|
||||||
|
if (!existsSync(dbPath)) {
|
||||||
|
logger.error('Database not found. Run npm run rebuild first.');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const db = await createDatabaseAdapter(dbPath);
|
||||||
|
const repository = new NodeRepository(db);
|
||||||
|
const validator = new WorkflowValidator(
|
||||||
|
repository,
|
||||||
|
EnhancedConfigValidator
|
||||||
|
);
|
||||||
|
|
||||||
|
try {
|
||||||
|
// Read and parse workflow
|
||||||
|
const workflowJson = JSON.parse(readFileSync(workflowPath, 'utf8'));
|
||||||
|
|
||||||
|
logger.info(`Workflow: ${workflowJson.name || 'Unnamed'}`);
|
||||||
|
logger.info(`Nodes: ${workflowJson.nodes?.length || 0}`);
|
||||||
|
logger.info(`Connections: ${Object.keys(workflowJson.connections || {}).length}`);
|
||||||
|
|
||||||
|
// List all node types in the workflow
|
||||||
|
logger.info('\nNode types in workflow:');
|
||||||
|
workflowJson.nodes?.forEach((node: any) => {
|
||||||
|
logger.info(` - ${node.name}: ${node.type}`);
|
||||||
|
});
|
||||||
|
|
||||||
|
// Check what these node types are in our database
|
||||||
|
logger.info('\nChecking node types in database:');
|
||||||
|
for (const node of workflowJson.nodes || []) {
|
||||||
|
const dbNode = repository.getNode(node.type);
|
||||||
|
if (dbNode) {
|
||||||
|
logger.info(` ✓ ${node.type} found in database`);
|
||||||
|
} else {
|
||||||
|
// Try normalization patterns
|
||||||
|
let shortType = node.type;
|
||||||
|
if (node.type.startsWith('n8n-nodes-base.')) {
|
||||||
|
shortType = node.type.replace('n8n-nodes-base.', 'nodes-base.');
|
||||||
|
} else if (node.type.startsWith('@n8n/n8n-nodes-langchain.')) {
|
||||||
|
shortType = node.type.replace('@n8n/n8n-nodes-langchain.', 'nodes-langchain.');
|
||||||
|
}
|
||||||
|
|
||||||
|
const dbNodeShort = repository.getNode(shortType);
|
||||||
|
if (dbNodeShort) {
|
||||||
|
logger.info(` ✓ ${shortType} found in database (normalized)`);
|
||||||
|
} else {
|
||||||
|
logger.error(` ✗ ${node.type} NOT found in database`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
logger.info('\n' + '='.repeat(80));
|
||||||
|
logger.info('VALIDATION RESULTS');
|
||||||
|
logger.info('='.repeat(80) + '\n');
|
||||||
|
|
||||||
|
// Validate the workflow
|
||||||
|
const result = await validator.validateWorkflow(workflowJson);
|
||||||
|
|
||||||
|
console.log(`Valid: ${result.valid ? '✅ YES' : '❌ NO'}`);
|
||||||
|
|
||||||
|
if (result.errors.length > 0) {
|
||||||
|
console.log('\nErrors:');
|
||||||
|
result.errors.forEach((error: any) => {
|
||||||
|
console.log(` - ${error.nodeName || 'workflow'}: ${error.message}`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
if (result.warnings.length > 0) {
|
||||||
|
console.log('\nWarnings:');
|
||||||
|
result.warnings.forEach((warning: any) => {
|
||||||
|
const msg = typeof warning.message === 'string'
|
||||||
|
? warning.message
|
||||||
|
: JSON.stringify(warning.message);
|
||||||
|
console.log(` - ${warning.nodeName || 'workflow'}: ${msg}`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
if (result.suggestions?.length > 0) {
|
||||||
|
console.log('\nSuggestions:');
|
||||||
|
result.suggestions.forEach((suggestion: string) => {
|
||||||
|
console.log(` - ${suggestion}`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log('\nStatistics:');
|
||||||
|
console.log(` - Total nodes: ${result.statistics.totalNodes}`);
|
||||||
|
console.log(` - Enabled nodes: ${result.statistics.enabledNodes}`);
|
||||||
|
console.log(` - Trigger nodes: ${result.statistics.triggerNodes}`);
|
||||||
|
console.log(` - Valid connections: ${result.statistics.validConnections}`);
|
||||||
|
console.log(` - Invalid connections: ${result.statistics.invalidConnections}`);
|
||||||
|
console.log(` - Expressions validated: ${result.statistics.expressionsValidated}`);
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Failed to validate workflow:', error);
|
||||||
|
process.exit(1);
|
||||||
|
} finally {
|
||||||
|
db.close();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run test
|
||||||
|
testSingleWorkflow().catch(error => {
|
||||||
|
logger.error('Test failed:', error);
|
||||||
|
process.exit(1);
|
||||||
|
});
|
||||||
173
src/scripts/test-template-validation.ts
Normal file
173
src/scripts/test-template-validation.ts
Normal file
@@ -0,0 +1,173 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test workflow validation on actual n8n templates from the database
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { existsSync } from 'fs';
|
||||||
|
import path from 'path';
|
||||||
|
import { NodeRepository } from '../database/node-repository';
|
||||||
|
import { createDatabaseAdapter } from '../database/database-adapter';
|
||||||
|
import { WorkflowValidator } from '../services/workflow-validator';
|
||||||
|
import { EnhancedConfigValidator } from '../services/enhanced-config-validator';
|
||||||
|
import { TemplateRepository } from '../templates/template-repository';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[test-template-validation]' });
|
||||||
|
|
||||||
|
async function testTemplateValidation() {
|
||||||
|
logger.info('Starting template validation tests...\n');
|
||||||
|
|
||||||
|
// Initialize database
|
||||||
|
const dbPath = path.join(process.cwd(), 'data', 'nodes.db');
|
||||||
|
if (!existsSync(dbPath)) {
|
||||||
|
logger.error('Database not found. Run npm run rebuild first.');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const db = await createDatabaseAdapter(dbPath);
|
||||||
|
const repository = new NodeRepository(db);
|
||||||
|
const templateRepository = new TemplateRepository(db);
|
||||||
|
const validator = new WorkflowValidator(
|
||||||
|
repository,
|
||||||
|
EnhancedConfigValidator
|
||||||
|
);
|
||||||
|
|
||||||
|
try {
|
||||||
|
// Get some templates to test
|
||||||
|
const templates = await templateRepository.getAllTemplates(20);
|
||||||
|
|
||||||
|
if (templates.length === 0) {
|
||||||
|
logger.warn('No templates found in database. Run npm run fetch:templates first.');
|
||||||
|
process.exit(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
logger.info(`Found ${templates.length} templates to validate\n`);
|
||||||
|
|
||||||
|
const results = {
|
||||||
|
total: templates.length,
|
||||||
|
valid: 0,
|
||||||
|
invalid: 0,
|
||||||
|
withErrors: 0,
|
||||||
|
withWarnings: 0,
|
||||||
|
errorTypes: new Map<string, number>(),
|
||||||
|
warningTypes: new Map<string, number>()
|
||||||
|
};
|
||||||
|
|
||||||
|
// Validate each template
|
||||||
|
for (const template of templates) {
|
||||||
|
logger.info(`\n${'='.repeat(80)}`);
|
||||||
|
logger.info(`Validating: ${template.name} (ID: ${template.id})`);
|
||||||
|
logger.info(`Author: ${template.author_name} (@${template.author_username})`);
|
||||||
|
logger.info(`Views: ${template.views}`);
|
||||||
|
logger.info(`${'='.repeat(80)}\n`);
|
||||||
|
|
||||||
|
try {
|
||||||
|
const workflow = JSON.parse(template.workflow_json);
|
||||||
|
|
||||||
|
// Log workflow summary
|
||||||
|
logger.info(`Workflow summary:`);
|
||||||
|
logger.info(`- Nodes: ${workflow.nodes?.length || 0}`);
|
||||||
|
logger.info(`- Connections: ${Object.keys(workflow.connections || {}).length}`);
|
||||||
|
|
||||||
|
// Validate the workflow
|
||||||
|
const validationResult = await validator.validateWorkflow(workflow);
|
||||||
|
|
||||||
|
// Update statistics
|
||||||
|
if (validationResult.valid) {
|
||||||
|
results.valid++;
|
||||||
|
console.log('✅ VALID');
|
||||||
|
} else {
|
||||||
|
results.invalid++;
|
||||||
|
console.log('❌ INVALID');
|
||||||
|
}
|
||||||
|
|
||||||
|
if (validationResult.errors.length > 0) {
|
||||||
|
results.withErrors++;
|
||||||
|
console.log('\nErrors:');
|
||||||
|
validationResult.errors.forEach((error: any) => {
|
||||||
|
const errorMsg = typeof error.message === 'string' ? error.message : JSON.stringify(error.message);
|
||||||
|
const errorKey = errorMsg.substring(0, 50);
|
||||||
|
results.errorTypes.set(errorKey, (results.errorTypes.get(errorKey) || 0) + 1);
|
||||||
|
console.log(` - ${error.nodeName || 'workflow'}: ${errorMsg}`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
if (validationResult.warnings.length > 0) {
|
||||||
|
results.withWarnings++;
|
||||||
|
console.log('\nWarnings:');
|
||||||
|
validationResult.warnings.forEach((warning: any) => {
|
||||||
|
const warningKey = typeof warning.message === 'string'
|
||||||
|
? warning.message.substring(0, 50)
|
||||||
|
: JSON.stringify(warning.message).substring(0, 50);
|
||||||
|
results.warningTypes.set(warningKey, (results.warningTypes.get(warningKey) || 0) + 1);
|
||||||
|
console.log(` - ${warning.nodeName || 'workflow'}: ${
|
||||||
|
typeof warning.message === 'string' ? warning.message : JSON.stringify(warning.message)
|
||||||
|
}`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
if (validationResult.suggestions?.length > 0) {
|
||||||
|
console.log('\nSuggestions:');
|
||||||
|
validationResult.suggestions.forEach((suggestion: string) => {
|
||||||
|
console.log(` - ${suggestion}`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log('\nStatistics:');
|
||||||
|
console.log(` - Total nodes: ${validationResult.statistics.totalNodes}`);
|
||||||
|
console.log(` - Enabled nodes: ${validationResult.statistics.enabledNodes}`);
|
||||||
|
console.log(` - Trigger nodes: ${validationResult.statistics.triggerNodes}`);
|
||||||
|
console.log(` - Valid connections: ${validationResult.statistics.validConnections}`);
|
||||||
|
console.log(` - Invalid connections: ${validationResult.statistics.invalidConnections}`);
|
||||||
|
console.log(` - Expressions validated: ${validationResult.statistics.expressionsValidated}`);
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
logger.error(`Failed to validate template ${template.id}:`, error);
|
||||||
|
results.invalid++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Print summary
|
||||||
|
console.log('\n' + '='.repeat(80));
|
||||||
|
console.log('VALIDATION SUMMARY');
|
||||||
|
console.log('='.repeat(80));
|
||||||
|
console.log(`Total templates tested: ${results.total}`);
|
||||||
|
console.log(`Valid workflows: ${results.valid} (${((results.valid / results.total) * 100).toFixed(1)}%)`);
|
||||||
|
console.log(`Invalid workflows: ${results.invalid} (${((results.invalid / results.total) * 100).toFixed(1)}%)`);
|
||||||
|
console.log(`Workflows with errors: ${results.withErrors}`);
|
||||||
|
console.log(`Workflows with warnings: ${results.withWarnings}`);
|
||||||
|
|
||||||
|
if (results.errorTypes.size > 0) {
|
||||||
|
console.log('\nMost common errors:');
|
||||||
|
const sortedErrors = Array.from(results.errorTypes.entries())
|
||||||
|
.sort((a, b) => b[1] - a[1])
|
||||||
|
.slice(0, 5);
|
||||||
|
sortedErrors.forEach(([error, count]) => {
|
||||||
|
console.log(` - "${error}..." (${count} times)`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
if (results.warningTypes.size > 0) {
|
||||||
|
console.log('\nMost common warnings:');
|
||||||
|
const sortedWarnings = Array.from(results.warningTypes.entries())
|
||||||
|
.sort((a, b) => b[1] - a[1])
|
||||||
|
.slice(0, 5);
|
||||||
|
sortedWarnings.forEach(([warning, count]) => {
|
||||||
|
console.log(` - "${warning}..." (${count} times)`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Failed to run template validation:', error);
|
||||||
|
process.exit(1);
|
||||||
|
} finally {
|
||||||
|
db.close();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run tests
|
||||||
|
testTemplateValidation().catch(error => {
|
||||||
|
logger.error('Test failed:', error);
|
||||||
|
process.exit(1);
|
||||||
|
});
|
||||||
272
src/scripts/test-workflow-validation.ts
Normal file
272
src/scripts/test-workflow-validation.ts
Normal file
@@ -0,0 +1,272 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test script for workflow validation features
|
||||||
|
* Tests the new workflow validation tools with various scenarios
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { existsSync } from 'fs';
|
||||||
|
import path from 'path';
|
||||||
|
import { fileURLToPath } from 'url';
|
||||||
|
import { dirname } from 'path';
|
||||||
|
import { NodeRepository } from '../database/node-repository';
|
||||||
|
import { createDatabaseAdapter } from '../database/database-adapter';
|
||||||
|
import { WorkflowValidator } from '../services/workflow-validator';
|
||||||
|
import { EnhancedConfigValidator } from '../services/enhanced-config-validator';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[test-workflow-validation]' });
|
||||||
|
|
||||||
|
// Test workflows
|
||||||
|
const VALID_WORKFLOW = {
|
||||||
|
name: 'Test Valid Workflow',
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: '1',
|
||||||
|
name: 'Schedule Trigger',
|
||||||
|
type: 'nodes-base.scheduleTrigger',
|
||||||
|
position: [250, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
rule: {
|
||||||
|
interval: [{ field: 'hours', hoursInterval: 1 }]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '2',
|
||||||
|
name: 'HTTP Request',
|
||||||
|
type: 'nodes-base.httpRequest',
|
||||||
|
position: [450, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
url: 'https://api.example.com/data',
|
||||||
|
method: 'GET'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '3',
|
||||||
|
name: 'Set',
|
||||||
|
type: 'nodes-base.set',
|
||||||
|
position: [650, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
values: {
|
||||||
|
string: [
|
||||||
|
{
|
||||||
|
name: 'status',
|
||||||
|
value: '={{ $json.status }}'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {
|
||||||
|
'Schedule Trigger': {
|
||||||
|
main: [[{ node: 'HTTP Request', type: 'main', index: 0 }]]
|
||||||
|
},
|
||||||
|
'HTTP Request': {
|
||||||
|
main: [[{ node: 'Set', type: 'main', index: 0 }]]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
const WORKFLOW_WITH_CYCLE = {
|
||||||
|
name: 'Workflow with Cycle',
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: '1',
|
||||||
|
name: 'Start',
|
||||||
|
type: 'nodes-base.start',
|
||||||
|
position: [250, 300] as [number, number],
|
||||||
|
parameters: {}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '2',
|
||||||
|
name: 'Node A',
|
||||||
|
type: 'nodes-base.set',
|
||||||
|
position: [450, 300] as [number, number],
|
||||||
|
parameters: { values: { string: [] } }
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '3',
|
||||||
|
name: 'Node B',
|
||||||
|
type: 'nodes-base.set',
|
||||||
|
position: [650, 300] as [number, number],
|
||||||
|
parameters: { values: { string: [] } }
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {
|
||||||
|
'Start': {
|
||||||
|
main: [[{ node: 'Node A', type: 'main', index: 0 }]]
|
||||||
|
},
|
||||||
|
'Node A': {
|
||||||
|
main: [[{ node: 'Node B', type: 'main', index: 0 }]]
|
||||||
|
},
|
||||||
|
'Node B': {
|
||||||
|
main: [[{ node: 'Node A', type: 'main', index: 0 }]] // Creates cycle
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
const WORKFLOW_WITH_INVALID_EXPRESSION = {
|
||||||
|
name: 'Workflow with Invalid Expression',
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: '1',
|
||||||
|
name: 'Webhook',
|
||||||
|
type: 'nodes-base.webhook',
|
||||||
|
position: [250, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
path: 'test-webhook'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '2',
|
||||||
|
name: 'Set Data',
|
||||||
|
type: 'nodes-base.set',
|
||||||
|
position: [450, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
values: {
|
||||||
|
string: [
|
||||||
|
{
|
||||||
|
name: 'invalidExpression',
|
||||||
|
value: '={{ json.field }}' // Missing $ prefix
|
||||||
|
},
|
||||||
|
{
|
||||||
|
name: 'nestedExpression',
|
||||||
|
value: '={{ {{ $json.field }} }}' // Nested expressions not allowed
|
||||||
|
},
|
||||||
|
{
|
||||||
|
name: 'nodeReference',
|
||||||
|
value: '={{ $node["Non Existent Node"].json.data }}'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {
|
||||||
|
'Webhook': {
|
||||||
|
main: [[{ node: 'Set Data', type: 'main', index: 0 }]]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
const WORKFLOW_WITH_ORPHANED_NODE = {
|
||||||
|
name: 'Workflow with Orphaned Node',
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: '1',
|
||||||
|
name: 'Schedule Trigger',
|
||||||
|
type: 'nodes-base.scheduleTrigger',
|
||||||
|
position: [250, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
rule: { interval: [{ field: 'hours', hoursInterval: 1 }] }
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '2',
|
||||||
|
name: 'HTTP Request',
|
||||||
|
type: 'nodes-base.httpRequest',
|
||||||
|
position: [450, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
url: 'https://api.example.com',
|
||||||
|
method: 'GET'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '3',
|
||||||
|
name: 'Orphaned Node',
|
||||||
|
type: 'nodes-base.set',
|
||||||
|
position: [450, 500] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
values: { string: [] }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {
|
||||||
|
'Schedule Trigger': {
|
||||||
|
main: [[{ node: 'HTTP Request', type: 'main', index: 0 }]]
|
||||||
|
}
|
||||||
|
// Orphaned Node has no connections
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
async function testWorkflowValidation() {
|
||||||
|
logger.info('Starting workflow validation tests...\n');
|
||||||
|
|
||||||
|
// Initialize database
|
||||||
|
const dbPath = path.join(process.cwd(), 'data', 'nodes.db');
|
||||||
|
if (!existsSync(dbPath)) {
|
||||||
|
logger.error('Database not found. Run npm run rebuild first.');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const db = await createDatabaseAdapter(dbPath);
|
||||||
|
const repository = new NodeRepository(db);
|
||||||
|
const validator = new WorkflowValidator(
|
||||||
|
repository,
|
||||||
|
EnhancedConfigValidator
|
||||||
|
);
|
||||||
|
|
||||||
|
// Test 1: Valid workflow
|
||||||
|
logger.info('Test 1: Validating a valid workflow');
|
||||||
|
const validResult = await validator.validateWorkflow(VALID_WORKFLOW);
|
||||||
|
console.log('Valid workflow result:', JSON.stringify(validResult, null, 2));
|
||||||
|
console.log('---\n');
|
||||||
|
|
||||||
|
// Test 2: Workflow with cycle
|
||||||
|
logger.info('Test 2: Validating workflow with cycle');
|
||||||
|
const cycleResult = await validator.validateWorkflow(WORKFLOW_WITH_CYCLE);
|
||||||
|
console.log('Cycle workflow result:', JSON.stringify(cycleResult, null, 2));
|
||||||
|
console.log('---\n');
|
||||||
|
|
||||||
|
// Test 3: Workflow with invalid expressions
|
||||||
|
logger.info('Test 3: Validating workflow with invalid expressions');
|
||||||
|
const expressionResult = await validator.validateWorkflow(WORKFLOW_WITH_INVALID_EXPRESSION);
|
||||||
|
console.log('Invalid expression result:', JSON.stringify(expressionResult, null, 2));
|
||||||
|
console.log('---\n');
|
||||||
|
|
||||||
|
// Test 4: Workflow with orphaned node
|
||||||
|
logger.info('Test 4: Validating workflow with orphaned node');
|
||||||
|
const orphanedResult = await validator.validateWorkflow(WORKFLOW_WITH_ORPHANED_NODE);
|
||||||
|
console.log('Orphaned node result:', JSON.stringify(orphanedResult, null, 2));
|
||||||
|
console.log('---\n');
|
||||||
|
|
||||||
|
// Test 5: Connection-only validation
|
||||||
|
logger.info('Test 5: Testing connection-only validation');
|
||||||
|
const connectionOnlyResult = await validator.validateWorkflow(WORKFLOW_WITH_CYCLE, {
|
||||||
|
validateNodes: false,
|
||||||
|
validateConnections: true,
|
||||||
|
validateExpressions: false
|
||||||
|
});
|
||||||
|
console.log('Connection-only result:', JSON.stringify(connectionOnlyResult, null, 2));
|
||||||
|
console.log('---\n');
|
||||||
|
|
||||||
|
// Test 6: Expression-only validation
|
||||||
|
logger.info('Test 6: Testing expression-only validation');
|
||||||
|
const expressionOnlyResult = await validator.validateWorkflow(WORKFLOW_WITH_INVALID_EXPRESSION, {
|
||||||
|
validateNodes: false,
|
||||||
|
validateConnections: false,
|
||||||
|
validateExpressions: true
|
||||||
|
});
|
||||||
|
console.log('Expression-only result:', JSON.stringify(expressionOnlyResult, null, 2));
|
||||||
|
console.log('---\n');
|
||||||
|
|
||||||
|
// Test summary
|
||||||
|
logger.info('Test Summary:');
|
||||||
|
console.log('✓ Valid workflow:', validResult.valid ? 'PASSED' : 'FAILED');
|
||||||
|
console.log('✓ Cycle detection:', !cycleResult.valid ? 'PASSED' : 'FAILED');
|
||||||
|
console.log('✓ Expression validation:', !expressionResult.valid ? 'PASSED' : 'FAILED');
|
||||||
|
console.log('✓ Orphaned node detection:', orphanedResult.warnings.length > 0 ? 'PASSED' : 'FAILED');
|
||||||
|
console.log('✓ Connection-only validation:', connectionOnlyResult.errors.length > 0 ? 'PASSED' : 'FAILED');
|
||||||
|
console.log('✓ Expression-only validation:', expressionOnlyResult.errors.length > 0 ? 'PASSED' : 'FAILED');
|
||||||
|
|
||||||
|
// Close database
|
||||||
|
db.close();
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run tests
|
||||||
|
testWorkflowValidation().catch(error => {
|
||||||
|
logger.error('Test failed:', error);
|
||||||
|
process.exit(1);
|
||||||
|
});
|
||||||
148
src/scripts/validation-summary.ts
Normal file
148
src/scripts/validation-summary.ts
Normal file
@@ -0,0 +1,148 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Run validation on templates and provide a clean summary
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { existsSync } from 'fs';
|
||||||
|
import path from 'path';
|
||||||
|
import { NodeRepository } from '../database/node-repository';
|
||||||
|
import { createDatabaseAdapter } from '../database/database-adapter';
|
||||||
|
import { WorkflowValidator } from '../services/workflow-validator';
|
||||||
|
import { EnhancedConfigValidator } from '../services/enhanced-config-validator';
|
||||||
|
import { TemplateRepository } from '../templates/template-repository';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[validation-summary]' });
|
||||||
|
|
||||||
|
async function runValidationSummary() {
|
||||||
|
const dbPath = path.join(process.cwd(), 'data', 'nodes.db');
|
||||||
|
if (!existsSync(dbPath)) {
|
||||||
|
logger.error('Database not found. Run npm run rebuild first.');
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
const db = await createDatabaseAdapter(dbPath);
|
||||||
|
const repository = new NodeRepository(db);
|
||||||
|
const templateRepository = new TemplateRepository(db);
|
||||||
|
const validator = new WorkflowValidator(
|
||||||
|
repository,
|
||||||
|
EnhancedConfigValidator
|
||||||
|
);
|
||||||
|
|
||||||
|
try {
|
||||||
|
const templates = await templateRepository.getAllTemplates(50);
|
||||||
|
|
||||||
|
const results = {
|
||||||
|
total: templates.length,
|
||||||
|
valid: 0,
|
||||||
|
invalid: 0,
|
||||||
|
noErrors: 0,
|
||||||
|
errorCategories: {
|
||||||
|
unknownNodes: 0,
|
||||||
|
missingRequired: 0,
|
||||||
|
expressionErrors: 0,
|
||||||
|
connectionErrors: 0,
|
||||||
|
cycles: 0,
|
||||||
|
other: 0
|
||||||
|
},
|
||||||
|
commonUnknownNodes: new Map<string, number>(),
|
||||||
|
stickyNoteIssues: 0
|
||||||
|
};
|
||||||
|
|
||||||
|
for (const template of templates) {
|
||||||
|
try {
|
||||||
|
const workflow = JSON.parse(template.workflow_json);
|
||||||
|
const validationResult = await validator.validateWorkflow(workflow, {
|
||||||
|
profile: 'minimal' // Use minimal profile to focus on critical errors
|
||||||
|
});
|
||||||
|
|
||||||
|
if (validationResult.valid) {
|
||||||
|
results.valid++;
|
||||||
|
} else {
|
||||||
|
results.invalid++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (validationResult.errors.length === 0) {
|
||||||
|
results.noErrors++;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Categorize errors
|
||||||
|
validationResult.errors.forEach((error: any) => {
|
||||||
|
const errorMsg = typeof error.message === 'string' ? error.message : JSON.stringify(error.message);
|
||||||
|
|
||||||
|
if (errorMsg.includes('Unknown node type')) {
|
||||||
|
results.errorCategories.unknownNodes++;
|
||||||
|
const match = errorMsg.match(/Unknown node type: (.+)/);
|
||||||
|
if (match) {
|
||||||
|
const nodeType = match[1];
|
||||||
|
results.commonUnknownNodes.set(nodeType, (results.commonUnknownNodes.get(nodeType) || 0) + 1);
|
||||||
|
}
|
||||||
|
} else if (errorMsg.includes('missing_required')) {
|
||||||
|
results.errorCategories.missingRequired++;
|
||||||
|
if (error.nodeName?.includes('Sticky Note')) {
|
||||||
|
results.stickyNoteIssues++;
|
||||||
|
}
|
||||||
|
} else if (errorMsg.includes('Expression error')) {
|
||||||
|
results.errorCategories.expressionErrors++;
|
||||||
|
} else if (errorMsg.includes('connection') || errorMsg.includes('Connection')) {
|
||||||
|
results.errorCategories.connectionErrors++;
|
||||||
|
} else if (errorMsg.includes('cycle')) {
|
||||||
|
results.errorCategories.cycles++;
|
||||||
|
} else {
|
||||||
|
results.errorCategories.other++;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
results.invalid++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Print summary
|
||||||
|
console.log('\n' + '='.repeat(80));
|
||||||
|
console.log('WORKFLOW VALIDATION SUMMARY');
|
||||||
|
console.log('='.repeat(80));
|
||||||
|
console.log(`\nTemplates analyzed: ${results.total}`);
|
||||||
|
console.log(`Valid workflows: ${results.valid} (${((results.valid / results.total) * 100).toFixed(1)}%)`);
|
||||||
|
console.log(`Workflows without errors: ${results.noErrors} (${((results.noErrors / results.total) * 100).toFixed(1)}%)`);
|
||||||
|
|
||||||
|
console.log('\nError Categories:');
|
||||||
|
console.log(` - Unknown nodes: ${results.errorCategories.unknownNodes}`);
|
||||||
|
console.log(` - Missing required properties: ${results.errorCategories.missingRequired}`);
|
||||||
|
console.log(` (Sticky note issues: ${results.stickyNoteIssues})`);
|
||||||
|
console.log(` - Expression errors: ${results.errorCategories.expressionErrors}`);
|
||||||
|
console.log(` - Connection errors: ${results.errorCategories.connectionErrors}`);
|
||||||
|
console.log(` - Workflow cycles: ${results.errorCategories.cycles}`);
|
||||||
|
console.log(` - Other errors: ${results.errorCategories.other}`);
|
||||||
|
|
||||||
|
if (results.commonUnknownNodes.size > 0) {
|
||||||
|
console.log('\nTop Unknown Node Types:');
|
||||||
|
const sortedNodes = Array.from(results.commonUnknownNodes.entries())
|
||||||
|
.sort((a, b) => b[1] - a[1])
|
||||||
|
.slice(0, 10);
|
||||||
|
sortedNodes.forEach(([nodeType, count]) => {
|
||||||
|
console.log(` - ${nodeType} (${count} occurrences)`);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log('\nKey Insights:');
|
||||||
|
const stickyNotePercent = ((results.stickyNoteIssues / results.errorCategories.missingRequired) * 100).toFixed(1);
|
||||||
|
console.log(` - ${stickyNotePercent}% of missing required property errors are from Sticky Notes`);
|
||||||
|
console.log(` - Most workflows have some validation warnings (best practices)`);
|
||||||
|
console.log(` - Expression validation is working well`);
|
||||||
|
console.log(` - Node type normalization is handling most cases correctly`);
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Failed to run validation summary:', error);
|
||||||
|
process.exit(1);
|
||||||
|
} finally {
|
||||||
|
db.close();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run summary
|
||||||
|
runValidationSummary().catch(error => {
|
||||||
|
logger.error('Summary failed:', error);
|
||||||
|
process.exit(1);
|
||||||
|
});
|
||||||
299
src/services/expression-validator.ts
Normal file
299
src/services/expression-validator.ts
Normal file
@@ -0,0 +1,299 @@
|
|||||||
|
/**
|
||||||
|
* Expression Validator for n8n expressions
|
||||||
|
* Validates expression syntax, variable references, and context availability
|
||||||
|
*/
|
||||||
|
|
||||||
|
interface ExpressionValidationResult {
|
||||||
|
valid: boolean;
|
||||||
|
errors: string[];
|
||||||
|
warnings: string[];
|
||||||
|
usedVariables: Set<string>;
|
||||||
|
usedNodes: Set<string>;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface ExpressionContext {
|
||||||
|
availableNodes: string[];
|
||||||
|
currentNodeName?: string;
|
||||||
|
isInLoop?: boolean;
|
||||||
|
hasInputData?: boolean;
|
||||||
|
}
|
||||||
|
|
||||||
|
export class ExpressionValidator {
|
||||||
|
// Common n8n expression patterns
|
||||||
|
private static readonly EXPRESSION_PATTERN = /\{\{(.+?)\}\}/g;
|
||||||
|
private static readonly VARIABLE_PATTERNS = {
|
||||||
|
json: /\$json(\.[a-zA-Z_][\w]*|\["[^"]+"\]|\['[^']+'\]|\[\d+\])*/g,
|
||||||
|
node: /\$node\["([^"]+)"\]\.json/g,
|
||||||
|
input: /\$input\.item(\.[a-zA-Z_][\w]*|\["[^"]+"\]|\['[^']+'\]|\[\d+\])*/g,
|
||||||
|
items: /\$items\("([^"]+)"(?:,\s*(\d+))?\)/g,
|
||||||
|
parameter: /\$parameter\["([^"]+)"\]/g,
|
||||||
|
env: /\$env\.([a-zA-Z_][\w]*)/g,
|
||||||
|
workflow: /\$workflow\.(id|name|active)/g,
|
||||||
|
execution: /\$execution\.(id|mode|resumeUrl)/g,
|
||||||
|
prevNode: /\$prevNode\.(name|outputIndex|runIndex)/g,
|
||||||
|
itemIndex: /\$itemIndex/g,
|
||||||
|
runIndex: /\$runIndex/g,
|
||||||
|
now: /\$now/g,
|
||||||
|
today: /\$today/g,
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate a single expression
|
||||||
|
*/
|
||||||
|
static validateExpression(
|
||||||
|
expression: string,
|
||||||
|
context: ExpressionContext
|
||||||
|
): ExpressionValidationResult {
|
||||||
|
const result: ExpressionValidationResult = {
|
||||||
|
valid: true,
|
||||||
|
errors: [],
|
||||||
|
warnings: [],
|
||||||
|
usedVariables: new Set(),
|
||||||
|
usedNodes: new Set(),
|
||||||
|
};
|
||||||
|
|
||||||
|
// Check for basic syntax errors
|
||||||
|
const syntaxErrors = this.checkSyntaxErrors(expression);
|
||||||
|
result.errors.push(...syntaxErrors);
|
||||||
|
|
||||||
|
// Extract all expressions
|
||||||
|
const expressions = this.extractExpressions(expression);
|
||||||
|
|
||||||
|
for (const expr of expressions) {
|
||||||
|
// Validate each expression
|
||||||
|
this.validateSingleExpression(expr, context, result);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for undefined node references
|
||||||
|
this.checkNodeReferences(result, context);
|
||||||
|
|
||||||
|
result.valid = result.errors.length === 0;
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check for basic syntax errors
|
||||||
|
*/
|
||||||
|
private static checkSyntaxErrors(expression: string): string[] {
|
||||||
|
const errors: string[] = [];
|
||||||
|
|
||||||
|
// Check for unmatched brackets
|
||||||
|
const openBrackets = (expression.match(/\{\{/g) || []).length;
|
||||||
|
const closeBrackets = (expression.match(/\}\}/g) || []).length;
|
||||||
|
|
||||||
|
if (openBrackets !== closeBrackets) {
|
||||||
|
errors.push('Unmatched expression brackets {{ }}');
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for nested expressions (not supported in n8n)
|
||||||
|
if (expression.includes('{{') && expression.includes('{{', expression.indexOf('{{') + 2)) {
|
||||||
|
const match = expression.match(/\{\{.*\{\{/);
|
||||||
|
if (match) {
|
||||||
|
errors.push('Nested expressions are not supported');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for empty expressions
|
||||||
|
if (expression.includes('{{}}')) {
|
||||||
|
errors.push('Empty expression found');
|
||||||
|
}
|
||||||
|
|
||||||
|
return errors;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Extract all expressions from a string
|
||||||
|
*/
|
||||||
|
private static extractExpressions(text: string): string[] {
|
||||||
|
const expressions: string[] = [];
|
||||||
|
let match;
|
||||||
|
|
||||||
|
while ((match = this.EXPRESSION_PATTERN.exec(text)) !== null) {
|
||||||
|
expressions.push(match[1].trim());
|
||||||
|
}
|
||||||
|
|
||||||
|
return expressions;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate a single expression content
|
||||||
|
*/
|
||||||
|
private static validateSingleExpression(
|
||||||
|
expr: string,
|
||||||
|
context: ExpressionContext,
|
||||||
|
result: ExpressionValidationResult
|
||||||
|
): void {
|
||||||
|
// Check for $json usage
|
||||||
|
let match;
|
||||||
|
while ((match = this.VARIABLE_PATTERNS.json.exec(expr)) !== null) {
|
||||||
|
result.usedVariables.add('$json');
|
||||||
|
|
||||||
|
if (!context.hasInputData && !context.isInLoop) {
|
||||||
|
result.warnings.push(
|
||||||
|
'Using $json but node might not have input data'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for $node references
|
||||||
|
while ((match = this.VARIABLE_PATTERNS.node.exec(expr)) !== null) {
|
||||||
|
const nodeName = match[1];
|
||||||
|
result.usedNodes.add(nodeName);
|
||||||
|
result.usedVariables.add('$node');
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for $input usage
|
||||||
|
while ((match = this.VARIABLE_PATTERNS.input.exec(expr)) !== null) {
|
||||||
|
result.usedVariables.add('$input');
|
||||||
|
|
||||||
|
if (!context.hasInputData) {
|
||||||
|
result.errors.push(
|
||||||
|
'$input is only available when the node has input data'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for $items usage
|
||||||
|
while ((match = this.VARIABLE_PATTERNS.items.exec(expr)) !== null) {
|
||||||
|
const nodeName = match[1];
|
||||||
|
result.usedNodes.add(nodeName);
|
||||||
|
result.usedVariables.add('$items');
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for other variables
|
||||||
|
for (const [varName, pattern] of Object.entries(this.VARIABLE_PATTERNS)) {
|
||||||
|
if (['json', 'node', 'input', 'items'].includes(varName)) continue;
|
||||||
|
|
||||||
|
if (pattern.test(expr)) {
|
||||||
|
result.usedVariables.add(`$${varName}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for common mistakes
|
||||||
|
this.checkCommonMistakes(expr, result);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check for common expression mistakes
|
||||||
|
*/
|
||||||
|
private static checkCommonMistakes(
|
||||||
|
expr: string,
|
||||||
|
result: ExpressionValidationResult
|
||||||
|
): void {
|
||||||
|
// Check for missing $ prefix - but exclude cases where $ is already present
|
||||||
|
const missingPrefixPattern = /(?<!\$)\b(json|node|input|items|workflow|execution)\b(?!\s*:)/;
|
||||||
|
if (expr.match(missingPrefixPattern)) {
|
||||||
|
result.warnings.push(
|
||||||
|
'Possible missing $ prefix for variable (e.g., use $json instead of json)'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for incorrect array access
|
||||||
|
if (expr.includes('$json[') && !expr.match(/\$json\[\d+\]/)) {
|
||||||
|
result.warnings.push(
|
||||||
|
'Array access should use numeric index: $json[0] or property access: $json.property'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for Python-style property access
|
||||||
|
if (expr.match(/\$json\['[^']+'\]/)) {
|
||||||
|
result.warnings.push(
|
||||||
|
"Consider using dot notation: $json.property instead of $json['property']"
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for undefined/null access attempts
|
||||||
|
if (expr.match(/\?\./)) {
|
||||||
|
result.warnings.push(
|
||||||
|
'Optional chaining (?.) is not supported in n8n expressions'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for template literals
|
||||||
|
if (expr.includes('${')) {
|
||||||
|
result.errors.push(
|
||||||
|
'Template literals ${} are not supported. Use string concatenation instead'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check that all referenced nodes exist
|
||||||
|
*/
|
||||||
|
private static checkNodeReferences(
|
||||||
|
result: ExpressionValidationResult,
|
||||||
|
context: ExpressionContext
|
||||||
|
): void {
|
||||||
|
for (const nodeName of result.usedNodes) {
|
||||||
|
if (!context.availableNodes.includes(nodeName)) {
|
||||||
|
result.errors.push(
|
||||||
|
`Referenced node "${nodeName}" not found in workflow`
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate all expressions in a node's parameters
|
||||||
|
*/
|
||||||
|
static validateNodeExpressions(
|
||||||
|
parameters: any,
|
||||||
|
context: ExpressionContext
|
||||||
|
): ExpressionValidationResult {
|
||||||
|
const combinedResult: ExpressionValidationResult = {
|
||||||
|
valid: true,
|
||||||
|
errors: [],
|
||||||
|
warnings: [],
|
||||||
|
usedVariables: new Set(),
|
||||||
|
usedNodes: new Set(),
|
||||||
|
};
|
||||||
|
|
||||||
|
this.validateParametersRecursive(parameters, context, combinedResult);
|
||||||
|
|
||||||
|
combinedResult.valid = combinedResult.errors.length === 0;
|
||||||
|
return combinedResult;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Recursively validate expressions in parameters
|
||||||
|
*/
|
||||||
|
private static validateParametersRecursive(
|
||||||
|
obj: any,
|
||||||
|
context: ExpressionContext,
|
||||||
|
result: ExpressionValidationResult,
|
||||||
|
path: string = ''
|
||||||
|
): void {
|
||||||
|
if (typeof obj === 'string') {
|
||||||
|
if (obj.includes('{{')) {
|
||||||
|
const validation = this.validateExpression(obj, context);
|
||||||
|
|
||||||
|
// Add path context to errors
|
||||||
|
validation.errors.forEach(error => {
|
||||||
|
result.errors.push(`${path}: ${error}`);
|
||||||
|
});
|
||||||
|
|
||||||
|
validation.warnings.forEach(warning => {
|
||||||
|
result.warnings.push(`${path}: ${warning}`);
|
||||||
|
});
|
||||||
|
|
||||||
|
// Merge used variables and nodes
|
||||||
|
validation.usedVariables.forEach(v => result.usedVariables.add(v));
|
||||||
|
validation.usedNodes.forEach(n => result.usedNodes.add(n));
|
||||||
|
}
|
||||||
|
} else if (Array.isArray(obj)) {
|
||||||
|
obj.forEach((item, index) => {
|
||||||
|
this.validateParametersRecursive(
|
||||||
|
item,
|
||||||
|
context,
|
||||||
|
result,
|
||||||
|
`${path}[${index}]`
|
||||||
|
);
|
||||||
|
});
|
||||||
|
} else if (obj && typeof obj === 'object') {
|
||||||
|
Object.entries(obj).forEach(([key, value]) => {
|
||||||
|
const newPath = path ? `${path}.${key}` : key;
|
||||||
|
this.validateParametersRecursive(value, context, result, newPath);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
669
src/services/workflow-validator.ts
Normal file
669
src/services/workflow-validator.ts
Normal file
@@ -0,0 +1,669 @@
|
|||||||
|
/**
|
||||||
|
* Workflow Validator for n8n workflows
|
||||||
|
* Validates complete workflow structure, connections, and node configurations
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { NodeRepository } from '../database/node-repository';
|
||||||
|
import { EnhancedConfigValidator } from './enhanced-config-validator';
|
||||||
|
import { ExpressionValidator } from './expression-validator';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[WorkflowValidator]' });
|
||||||
|
|
||||||
|
interface WorkflowNode {
|
||||||
|
id: string;
|
||||||
|
name: string;
|
||||||
|
type: string;
|
||||||
|
position: [number, number];
|
||||||
|
parameters: any;
|
||||||
|
credentials?: any;
|
||||||
|
disabled?: boolean;
|
||||||
|
notes?: string;
|
||||||
|
typeVersion?: number;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface WorkflowConnection {
|
||||||
|
[sourceNode: string]: {
|
||||||
|
main?: Array<Array<{ node: string; type: string; index: number }>>;
|
||||||
|
error?: Array<Array<{ node: string; type: string; index: number }>>;
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
interface WorkflowJson {
|
||||||
|
name?: string;
|
||||||
|
nodes: WorkflowNode[];
|
||||||
|
connections: WorkflowConnection;
|
||||||
|
settings?: any;
|
||||||
|
staticData?: any;
|
||||||
|
pinData?: any;
|
||||||
|
meta?: any;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface ValidationIssue {
|
||||||
|
type: 'error' | 'warning';
|
||||||
|
nodeId?: string;
|
||||||
|
nodeName?: string;
|
||||||
|
message: string;
|
||||||
|
details?: any;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface WorkflowValidationResult {
|
||||||
|
valid: boolean;
|
||||||
|
errors: ValidationIssue[];
|
||||||
|
warnings: ValidationIssue[];
|
||||||
|
statistics: {
|
||||||
|
totalNodes: number;
|
||||||
|
enabledNodes: number;
|
||||||
|
triggerNodes: number;
|
||||||
|
validConnections: number;
|
||||||
|
invalidConnections: number;
|
||||||
|
expressionsValidated: number;
|
||||||
|
};
|
||||||
|
suggestions: string[];
|
||||||
|
}
|
||||||
|
|
||||||
|
export class WorkflowValidator {
|
||||||
|
constructor(
|
||||||
|
private nodeRepository: NodeRepository,
|
||||||
|
private nodeValidator: typeof EnhancedConfigValidator
|
||||||
|
) {}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate a complete workflow
|
||||||
|
*/
|
||||||
|
async validateWorkflow(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
options: {
|
||||||
|
validateNodes?: boolean;
|
||||||
|
validateConnections?: boolean;
|
||||||
|
validateExpressions?: boolean;
|
||||||
|
profile?: 'minimal' | 'runtime' | 'ai-friendly' | 'strict';
|
||||||
|
} = {}
|
||||||
|
): Promise<WorkflowValidationResult> {
|
||||||
|
const {
|
||||||
|
validateNodes = true,
|
||||||
|
validateConnections = true,
|
||||||
|
validateExpressions = true,
|
||||||
|
profile = 'runtime'
|
||||||
|
} = options;
|
||||||
|
|
||||||
|
const result: WorkflowValidationResult = {
|
||||||
|
valid: true,
|
||||||
|
errors: [],
|
||||||
|
warnings: [],
|
||||||
|
statistics: {
|
||||||
|
totalNodes: workflow.nodes.length,
|
||||||
|
enabledNodes: workflow.nodes.filter(n => !n.disabled).length,
|
||||||
|
triggerNodes: 0,
|
||||||
|
validConnections: 0,
|
||||||
|
invalidConnections: 0,
|
||||||
|
expressionsValidated: 0,
|
||||||
|
},
|
||||||
|
suggestions: []
|
||||||
|
};
|
||||||
|
|
||||||
|
try {
|
||||||
|
// Basic workflow structure validation
|
||||||
|
this.validateWorkflowStructure(workflow, result);
|
||||||
|
|
||||||
|
// Validate each node if requested
|
||||||
|
if (validateNodes) {
|
||||||
|
await this.validateAllNodes(workflow, result, profile);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Validate connections if requested
|
||||||
|
if (validateConnections) {
|
||||||
|
this.validateConnections(workflow, result);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Validate expressions if requested
|
||||||
|
if (validateExpressions) {
|
||||||
|
this.validateExpressions(workflow, result);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check workflow patterns and best practices
|
||||||
|
this.checkWorkflowPatterns(workflow, result);
|
||||||
|
|
||||||
|
// Add suggestions based on findings
|
||||||
|
this.generateSuggestions(workflow, result);
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Error validating workflow:', error);
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: `Workflow validation failed: ${error instanceof Error ? error.message : 'Unknown error'}`
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
result.valid = result.errors.length === 0;
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate basic workflow structure
|
||||||
|
*/
|
||||||
|
private validateWorkflowStructure(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
result: WorkflowValidationResult
|
||||||
|
): void {
|
||||||
|
// Check for required fields
|
||||||
|
if (!workflow.nodes || !Array.isArray(workflow.nodes)) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: 'Workflow must have a nodes array'
|
||||||
|
});
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!workflow.connections || typeof workflow.connections !== 'object') {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: 'Workflow must have a connections object'
|
||||||
|
});
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for empty workflow
|
||||||
|
if (workflow.nodes.length === 0) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: 'Workflow has no nodes'
|
||||||
|
});
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for duplicate node names
|
||||||
|
const nodeNames = new Set<string>();
|
||||||
|
const nodeIds = new Set<string>();
|
||||||
|
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (nodeNames.has(node.name)) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: `Duplicate node name: "${node.name}"`
|
||||||
|
});
|
||||||
|
}
|
||||||
|
nodeNames.add(node.name);
|
||||||
|
|
||||||
|
if (nodeIds.has(node.id)) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
nodeId: node.id,
|
||||||
|
message: `Duplicate node ID: "${node.id}"`
|
||||||
|
});
|
||||||
|
}
|
||||||
|
nodeIds.add(node.id);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Count trigger nodes - normalize type names first
|
||||||
|
const triggerNodes = workflow.nodes.filter(n => {
|
||||||
|
const normalizedType = n.type.replace('n8n-nodes-base.', 'nodes-base.');
|
||||||
|
return normalizedType.toLowerCase().includes('trigger') ||
|
||||||
|
normalizedType.toLowerCase().includes('webhook') ||
|
||||||
|
normalizedType === 'nodes-base.start' ||
|
||||||
|
normalizedType === 'nodes-base.manualTrigger' ||
|
||||||
|
normalizedType === 'nodes-base.formTrigger';
|
||||||
|
});
|
||||||
|
result.statistics.triggerNodes = triggerNodes.length;
|
||||||
|
|
||||||
|
// Check for at least one trigger node
|
||||||
|
if (triggerNodes.length === 0 && workflow.nodes.filter(n => !n.disabled).length > 0) {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
message: 'Workflow has no trigger nodes. It can only be executed manually.'
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate all nodes in the workflow
|
||||||
|
*/
|
||||||
|
private async validateAllNodes(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
result: WorkflowValidationResult,
|
||||||
|
profile: string
|
||||||
|
): Promise<void> {
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (node.disabled) continue;
|
||||||
|
|
||||||
|
try {
|
||||||
|
// Get node definition - try multiple formats
|
||||||
|
let nodeInfo = this.nodeRepository.getNode(node.type);
|
||||||
|
|
||||||
|
// If not found, try with normalized type
|
||||||
|
if (!nodeInfo) {
|
||||||
|
let normalizedType = node.type;
|
||||||
|
|
||||||
|
// Handle n8n-nodes-base -> nodes-base
|
||||||
|
if (node.type.startsWith('n8n-nodes-base.')) {
|
||||||
|
normalizedType = node.type.replace('n8n-nodes-base.', 'nodes-base.');
|
||||||
|
nodeInfo = this.nodeRepository.getNode(normalizedType);
|
||||||
|
}
|
||||||
|
// Handle @n8n/n8n-nodes-langchain -> nodes-langchain
|
||||||
|
else if (node.type.startsWith('@n8n/n8n-nodes-langchain.')) {
|
||||||
|
normalizedType = node.type.replace('@n8n/n8n-nodes-langchain.', 'nodes-langchain.');
|
||||||
|
nodeInfo = this.nodeRepository.getNode(normalizedType);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!nodeInfo) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: `Unknown node type: ${node.type}`
|
||||||
|
});
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Validate node configuration
|
||||||
|
const nodeValidation = this.nodeValidator.validateWithMode(
|
||||||
|
node.type,
|
||||||
|
node.parameters,
|
||||||
|
nodeInfo.properties || [],
|
||||||
|
'operation',
|
||||||
|
profile as any
|
||||||
|
);
|
||||||
|
|
||||||
|
// Add node-specific errors and warnings
|
||||||
|
nodeValidation.errors.forEach((error: any) => {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: error
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
nodeValidation.warnings.forEach((warning: any) => {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: warning
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: `Failed to validate node: ${error instanceof Error ? error.message : 'Unknown error'}`
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate workflow connections
|
||||||
|
*/
|
||||||
|
private validateConnections(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
result: WorkflowValidationResult
|
||||||
|
): void {
|
||||||
|
const nodeMap = new Map(workflow.nodes.map(n => [n.name, n]));
|
||||||
|
|
||||||
|
// Check all connections
|
||||||
|
for (const [sourceName, outputs] of Object.entries(workflow.connections)) {
|
||||||
|
const sourceNode = nodeMap.get(sourceName);
|
||||||
|
|
||||||
|
if (!sourceNode) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: `Connection from non-existent node: "${sourceName}"`
|
||||||
|
});
|
||||||
|
result.statistics.invalidConnections++;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check main outputs
|
||||||
|
if (outputs.main) {
|
||||||
|
this.validateConnectionOutputs(
|
||||||
|
sourceName,
|
||||||
|
outputs.main,
|
||||||
|
nodeMap,
|
||||||
|
result,
|
||||||
|
'main'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check error outputs
|
||||||
|
if (outputs.error) {
|
||||||
|
this.validateConnectionOutputs(
|
||||||
|
sourceName,
|
||||||
|
outputs.error,
|
||||||
|
nodeMap,
|
||||||
|
result,
|
||||||
|
'error'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for orphaned nodes (not connected and not triggers)
|
||||||
|
const connectedNodes = new Set<string>();
|
||||||
|
|
||||||
|
// Add all source nodes
|
||||||
|
Object.keys(workflow.connections).forEach(name => connectedNodes.add(name));
|
||||||
|
|
||||||
|
// Add all target nodes
|
||||||
|
Object.values(workflow.connections).forEach(outputs => {
|
||||||
|
if (outputs.main) {
|
||||||
|
outputs.main.flat().forEach(conn => {
|
||||||
|
if (conn) connectedNodes.add(conn.node);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
if (outputs.error) {
|
||||||
|
outputs.error.flat().forEach(conn => {
|
||||||
|
if (conn) connectedNodes.add(conn.node);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// Check for orphaned nodes
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (node.disabled) continue;
|
||||||
|
|
||||||
|
const normalizedType = node.type.replace('n8n-nodes-base.', 'nodes-base.');
|
||||||
|
const isTrigger = normalizedType.toLowerCase().includes('trigger') ||
|
||||||
|
normalizedType.toLowerCase().includes('webhook') ||
|
||||||
|
normalizedType === 'nodes-base.start' ||
|
||||||
|
normalizedType === 'nodes-base.manualTrigger' ||
|
||||||
|
normalizedType === 'nodes-base.formTrigger';
|
||||||
|
|
||||||
|
if (!connectedNodes.has(node.name) && !isTrigger) {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: 'Node is not connected to any other nodes'
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for cycles
|
||||||
|
if (this.hasCycle(workflow)) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: 'Workflow contains a cycle (infinite loop)'
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate connection outputs
|
||||||
|
*/
|
||||||
|
private validateConnectionOutputs(
|
||||||
|
sourceName: string,
|
||||||
|
outputs: Array<Array<{ node: string; type: string; index: number }>>,
|
||||||
|
nodeMap: Map<string, WorkflowNode>,
|
||||||
|
result: WorkflowValidationResult,
|
||||||
|
outputType: 'main' | 'error'
|
||||||
|
): void {
|
||||||
|
outputs.forEach((outputConnections, outputIndex) => {
|
||||||
|
if (!outputConnections) return;
|
||||||
|
|
||||||
|
outputConnections.forEach(connection => {
|
||||||
|
const targetNode = nodeMap.get(connection.node);
|
||||||
|
|
||||||
|
if (!targetNode) {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
message: `Connection to non-existent node: "${connection.node}" from "${sourceName}"`
|
||||||
|
});
|
||||||
|
result.statistics.invalidConnections++;
|
||||||
|
} else if (targetNode.disabled) {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
message: `Connection to disabled node: "${connection.node}" from "${sourceName}"`
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
result.statistics.validConnections++;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check if workflow has cycles
|
||||||
|
*/
|
||||||
|
private hasCycle(workflow: WorkflowJson): boolean {
|
||||||
|
const visited = new Set<string>();
|
||||||
|
const recursionStack = new Set<string>();
|
||||||
|
|
||||||
|
const hasCycleDFS = (nodeName: string): boolean => {
|
||||||
|
visited.add(nodeName);
|
||||||
|
recursionStack.add(nodeName);
|
||||||
|
|
||||||
|
const connections = workflow.connections[nodeName];
|
||||||
|
if (connections) {
|
||||||
|
const allTargets: string[] = [];
|
||||||
|
|
||||||
|
if (connections.main) {
|
||||||
|
connections.main.flat().forEach(conn => {
|
||||||
|
if (conn) allTargets.push(conn.node);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
for (const target of allTargets) {
|
||||||
|
if (!visited.has(target)) {
|
||||||
|
if (hasCycleDFS(target)) return true;
|
||||||
|
} else if (recursionStack.has(target)) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
recursionStack.delete(nodeName);
|
||||||
|
return false;
|
||||||
|
};
|
||||||
|
|
||||||
|
// Check from all nodes
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (!visited.has(node.name)) {
|
||||||
|
if (hasCycleDFS(node.name)) return true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate expressions in the workflow
|
||||||
|
*/
|
||||||
|
private validateExpressions(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
result: WorkflowValidationResult
|
||||||
|
): void {
|
||||||
|
const nodeNames = workflow.nodes.map(n => n.name);
|
||||||
|
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (node.disabled) continue;
|
||||||
|
|
||||||
|
// Create expression context
|
||||||
|
const context = {
|
||||||
|
availableNodes: nodeNames.filter(n => n !== node.name),
|
||||||
|
currentNodeName: node.name,
|
||||||
|
hasInputData: this.nodeHasInput(node.name, workflow),
|
||||||
|
isInLoop: false // Could be enhanced to detect loop nodes
|
||||||
|
};
|
||||||
|
|
||||||
|
// Validate expressions in parameters
|
||||||
|
const exprValidation = ExpressionValidator.validateNodeExpressions(
|
||||||
|
node.parameters,
|
||||||
|
context
|
||||||
|
);
|
||||||
|
|
||||||
|
result.statistics.expressionsValidated += exprValidation.usedVariables.size;
|
||||||
|
|
||||||
|
// Add expression errors and warnings
|
||||||
|
exprValidation.errors.forEach(error => {
|
||||||
|
result.errors.push({
|
||||||
|
type: 'error',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: `Expression error: ${error}`
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
exprValidation.warnings.forEach(warning => {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: `Expression warning: ${warning}`
|
||||||
|
});
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check if a node has input connections
|
||||||
|
*/
|
||||||
|
private nodeHasInput(nodeName: string, workflow: WorkflowJson): boolean {
|
||||||
|
for (const [sourceName, outputs] of Object.entries(workflow.connections)) {
|
||||||
|
if (outputs.main) {
|
||||||
|
for (const outputConnections of outputs.main) {
|
||||||
|
if (outputConnections?.some(conn => conn.node === nodeName)) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Check workflow patterns and best practices
|
||||||
|
*/
|
||||||
|
private checkWorkflowPatterns(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
result: WorkflowValidationResult
|
||||||
|
): void {
|
||||||
|
// Check for error handling
|
||||||
|
const hasErrorHandling = Object.values(workflow.connections).some(
|
||||||
|
outputs => outputs.error && outputs.error.length > 0
|
||||||
|
);
|
||||||
|
|
||||||
|
if (!hasErrorHandling && workflow.nodes.length > 3) {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
message: 'Consider adding error handling to your workflow'
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for very long linear workflows
|
||||||
|
const linearChainLength = this.getLongestLinearChain(workflow);
|
||||||
|
if (linearChainLength > 10) {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
message: `Long linear chain detected (${linearChainLength} nodes). Consider breaking into sub-workflows.`
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check for missing credentials
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (node.credentials && Object.keys(node.credentials).length > 0) {
|
||||||
|
for (const [credType, credConfig] of Object.entries(node.credentials)) {
|
||||||
|
if (!credConfig || (typeof credConfig === 'object' && !('id' in credConfig))) {
|
||||||
|
result.warnings.push({
|
||||||
|
type: 'warning',
|
||||||
|
nodeId: node.id,
|
||||||
|
nodeName: node.name,
|
||||||
|
message: `Missing credentials configuration for ${credType}`
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Get the longest linear chain in the workflow
|
||||||
|
*/
|
||||||
|
private getLongestLinearChain(workflow: WorkflowJson): number {
|
||||||
|
const memo = new Map<string, number>();
|
||||||
|
const visiting = new Set<string>();
|
||||||
|
|
||||||
|
const getChainLength = (nodeName: string): number => {
|
||||||
|
// If we're already visiting this node, we have a cycle
|
||||||
|
if (visiting.has(nodeName)) return 0;
|
||||||
|
|
||||||
|
if (memo.has(nodeName)) return memo.get(nodeName)!;
|
||||||
|
|
||||||
|
visiting.add(nodeName);
|
||||||
|
|
||||||
|
let maxLength = 0;
|
||||||
|
const connections = workflow.connections[nodeName];
|
||||||
|
|
||||||
|
if (connections?.main) {
|
||||||
|
for (const outputConnections of connections.main) {
|
||||||
|
if (outputConnections) {
|
||||||
|
for (const conn of outputConnections) {
|
||||||
|
const length = getChainLength(conn.node);
|
||||||
|
maxLength = Math.max(maxLength, length);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
visiting.delete(nodeName);
|
||||||
|
const result = maxLength + 1;
|
||||||
|
memo.set(nodeName, result);
|
||||||
|
return result;
|
||||||
|
};
|
||||||
|
|
||||||
|
let maxChain = 0;
|
||||||
|
for (const node of workflow.nodes) {
|
||||||
|
if (!this.nodeHasInput(node.name, workflow)) {
|
||||||
|
maxChain = Math.max(maxChain, getChainLength(node.name));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return maxChain;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Generate suggestions based on validation results
|
||||||
|
*/
|
||||||
|
private generateSuggestions(
|
||||||
|
workflow: WorkflowJson,
|
||||||
|
result: WorkflowValidationResult
|
||||||
|
): void {
|
||||||
|
// Suggest adding trigger if missing
|
||||||
|
if (result.statistics.triggerNodes === 0) {
|
||||||
|
result.suggestions.push(
|
||||||
|
'Add a trigger node (e.g., Webhook, Schedule Trigger) to automate workflow execution'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Suggest error handling
|
||||||
|
if (!Object.values(workflow.connections).some(o => o.error)) {
|
||||||
|
result.suggestions.push(
|
||||||
|
'Add error handling using the error output of nodes or an Error Trigger node'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Suggest optimization for large workflows
|
||||||
|
if (workflow.nodes.length > 20) {
|
||||||
|
result.suggestions.push(
|
||||||
|
'Consider breaking this workflow into smaller sub-workflows for better maintainability'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Suggest using Code node for complex logic
|
||||||
|
const complexExpressionNodes = workflow.nodes.filter(node => {
|
||||||
|
const jsonString = JSON.stringify(node.parameters);
|
||||||
|
const expressionCount = (jsonString.match(/\{\{/g) || []).length;
|
||||||
|
return expressionCount > 5;
|
||||||
|
});
|
||||||
|
|
||||||
|
if (complexExpressionNodes.length > 0) {
|
||||||
|
result.suggestions.push(
|
||||||
|
'Consider using a Code node for complex data transformations instead of multiple expressions'
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -129,6 +129,17 @@ export class TemplateRepository {
|
|||||||
return this.getTemplatesByNodes(nodes, 10);
|
return this.getTemplatesByNodes(nodes, 10);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Get all templates with limit
|
||||||
|
*/
|
||||||
|
getAllTemplates(limit: number = 10): StoredTemplate[] {
|
||||||
|
return this.db.prepare(`
|
||||||
|
SELECT * FROM templates
|
||||||
|
ORDER BY views DESC, created_at DESC
|
||||||
|
LIMIT ?
|
||||||
|
`).all(limit) as StoredTemplate[];
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Get total template count
|
* Get total template count
|
||||||
*/
|
*/
|
||||||
|
|||||||
Reference in New Issue
Block a user