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Caddy Module Registration Checklist

This document outlines the requirements and steps for successfully registering the caddy-waf module in the official Caddy modules directory.

⚠️ Current Status

The module is NOT currently registered in Caddy's official module registry. Attempts to use caddy add-package github.com/fabriziosalmi/caddy-waf will fail with:

Error: download failed: HTTP 400: github.com/fabriziosalmi/caddy-waf is not a registered Caddy module package path

Alternative installation methods are available and recommended:

✅ Completed Requirements

1. Module Structure Compliance

  • Module Interface Implementation: Properly implements caddy.Module interface
  • Module ID: Correctly uses http.handlers.waf as module ID
  • Registration: Module is registered in init() function using caddy.RegisterModule()
  • Interface Guards: Proper interface guards implemented for compile-time checking
  • Caddyfile Support: Implements caddyfile.Unmarshaler for Caddyfile parsing

2. Required Interfaces

  • caddy.Module: Implemented via CaddyModule() method
  • caddy.Provisioner: Implemented via Provision() method
  • caddy.Validator: Implemented via Validate() method
  • caddyhttp.MiddlewareHandler: Implemented via ServeHTTP() method
  • caddyfile.Unmarshaler: Implemented via UnmarshalCaddyfile() method

3. Documentation Requirements

  • Package Documentation: Added comprehensive package-level documentation
  • Struct Documentation: Added detailed documentation for main Middleware struct
  • README.md: Comprehensive README with examples and installation instructions
  • Module Metadata: Created MODULE.md with standardized module information
  • Usage Examples: Created caddyfile.example with practical configuration examples
  • API Documentation: Generated via go doc commands

4. Code Quality and Standards

  • Go Module Structure: Proper go.mod with correct module path
  • Version Consistency: Updated version constant to match latest release (v0.0.6)
  • Build Verification: Module builds successfully with go build
  • Module Verification: Passes go mod verify
  • No Build Errors: Clean compilation with no warnings or errors

5. Release Management

  • Git Tags: Proper semantic versioning tags (v0.0.3, v0.0.4, v0.0.5, v0.0.6)
  • GitHub Releases: Automated release workflow creating GitHub releases
  • Release Notes: Proper release descriptions and changelogs
  • Binary Assets: Cross-platform binaries generated for releases

6. Testing and Validation

  • Test Suite: Comprehensive test coverage across multiple files
  • CI/CD Pipeline: GitHub Actions workflows for testing and building
  • Module Import: Can be imported and used with xcaddy build
  • caddy add-package: NOT compatible - module not registered in Caddy's registry

🔍 Registration Status and Issues

Current Status: NOT REGISTERED

The module has been attempted to be registered but the registration failed. The error returned indicates the module path is not recognized by Caddy's build service.

Error Details

When users attempt to install via caddy add-package:

Error: download failed: HTTP 400: github.com/fabriziosalmi/caddy-waf is not a registered Caddy module package path

Reference error IDs from failed registration attempts:

  • d9ae3bd6-bc8f-4f8a-a0de-dcff0399e7a9
  • 2b782e50-057d-4dac-bbd5-4cd1c1188669

Issue Analysis: Registration Error ID 2b782e50-057d-4dac-bbd5-4cd1c1188669

Based on the error ID mentioned in the issue comments, this appears to be a server-side error during the registration process rather than a module compliance issue. Common causes and solutions:

1. Server-Side Registration Issues

  • Cause: Temporary issues with the Caddy module registration service
  • Solution: Retry registration after some time
  • Status: May resolve automatically

2. Module Path Validation

  • Cause: Registration service may have strict validation rules
  • Solution: Ensure github.com/fabriziosalmi/caddy-waf is accessible and properly formatted
  • Status: ✅ Module path is valid and accessible

3. Go Module Accessibility

  • Cause: Registration service needs to fetch and validate the module
  • Solution: Ensure module is publicly accessible and properly tagged
  • Status: ✅ Repository is public with proper tags

4. Caddy Version Compatibility

  • Cause: Module might require specific Caddy version
  • Solution: Verify compatibility with latest Caddy version
  • Status: ✅ Uses Caddy v2.9.1 (latest)

🚀 Next Steps for Registration

1. Retry Registration

2. Contact Caddy Team

  • If registration continues to fail, contact Caddy maintainers
  • Provide the error ID: 2b782e50-057d-4dac-bbd5-4cd1c1188669
  • Reference this module's compliance with all requirements

3. Alternative Registration Paths

  • Consider submitting a PR to the Caddy Community repository
  • Engage with the Caddy community on forums or Discord
  • Document the module in community wikis or resources

📋 Final Verification Commands

Run these commands to verify module readiness:

# Verify module builds successfully
go build -v

# Verify module interfaces
go doc -short

# Test module import
go list -m github.com/fabriziosalmi/caddy-waf

# Test with caddy add-package (recommended)
caddy add-package github.com/fabriziosalmi/caddy-waf

# Verify with xcaddy (alternative method)
xcaddy build --with github.com/fabriziosalmi/caddy-waf

# Check latest version/tag
git describe --tags --abbrev=0

# Verify module is loaded
caddy list-modules | grep waf

📞 Support Information

Conclusion: The caddy-waf module meets all technical requirements for Caddy module registration. The registration error appears to be a service-side issue that may resolve with retry attempts or by contacting the Caddy team directly.