92 lines
3.9 KiB
Markdown
92 lines
3.9 KiB
Markdown
# Improvement Plan for SmartMail
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## Current Code Analysis
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### Core Components
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- **EmailAddressValidator**: Validates email addresses checking for validity, whether they are disposable or free
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- Uses MX record checks to validate domains
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- Has a domain map from external source that classifies domains as 'disposable' or 'freemail'
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- Has placeholder 'reason' field in results that's not implemented ("todo")
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- Fetches domain list from GitHub or falls back to local copy
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- No validation of email format before DNS checks
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- **Smartmail**: Email representation class
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- Basic email structure with from, subject, body
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- Supports file attachments via smartfile
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- Uses mustache templates for subject and body
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- Lacks recipient handling (to, cc, bcc)
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- No method to send emails
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- No HTML body support
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### Dependencies
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- Uses several @push.rocks packages:
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- smartdns: For DNS lookups
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- smartfile: For file handling/attachments
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- smartmustache: For template processing
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- smartpath: For path operations
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- smartrequest: For HTTP requests
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### Testing
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- Basic tests for EmailAddressValidator
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- Tests validation of regular, free, and disposable emails
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- No tests for invalid email formats or edge cases
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- Minimal test for Smartmail creation
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- No tests for attachments, templates, or other features
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## Enhanced Improvement Plan
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1. [x] Complete the EmailAddressValidator implementation
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- [x] Implement proper reason messages for validation results
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- [x] Add email format validation before DNS checks (RFC 5322 compliance)
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- [x] Add local part validation (check for illegal characters, proper format)
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- [x] Improve domain validation (check syntax before DNS lookup)
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- [x] Add email normalization (handle case sensitivity, plus addressing)
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- [x] Implement caching mechanism for DNS lookups to improve performance
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- [x] Add option to disable online domain list fetching
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2. [x] Enhance the Smartmail class
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- [x] Add support for multiple recipients (to, cc, bcc arrays)
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- [x] Add email preparing capabilities via MIME format
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- [x] Support HTML email bodies with plain text fallback
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- [x] Add reply-to and headers support
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- [x] Implement method to convert to standard email formats (MIME)
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- [x] Add email priority and importance flags
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- [x] Add validation of email addresses used in from/to/cc/bcc
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3. [x] Improve testing
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- [x] Add tests for email format validation (valid/invalid formats)
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- [x] Test domain validation edge cases (non-existent domains, etc.)
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- [x] Add tests for attachment handling
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- [x] Test template processing with different data structures
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- [x] Add tests for HTML emails and conversion
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- [x] Test recipient handling with multiple addresses
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4. [x] Performance & security improvements
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- [x] Optimize domain list handling
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- [x] Implement intelligent caching strategy for validation results
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- [x] Add configuration options for external service calls
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- [x] Ensure secure handling of email data and attachments
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5. [x] Documentation improvements
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- [x] Update README with comprehensive examples
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- [x] Add detailed API documentation with JSDoc
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- [x] Document all configuration options
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- [x] Add usage examples for common scenarios
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- [x] Document security considerations
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- [x] Add TypeScript type documentation
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6. [ ] Advanced features
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- [ ] DKIM/SPF validation support
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- [ ] Implement email address suggestions for typos
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- [ ] Add disposable email detection improvements
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- [ ] Support for internationalized email addresses (IDN)
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- [ ] Email address reputation checking
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- [ ] Add email deliverability scoring
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- [ ] Implement bounce address validation
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7. [x] Code quality
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- [x] Add more TypeScript interfaces for clearer API definitions
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- [x] Improve error handling with specific error types
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- [x] Add configuration options via constructor
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- [x] Make domain list updates configurable
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- [x] Improve code organization with better separation of concerns |