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Sanctify-PHP Comprehensive Implementation Roadmap

Target: 40% → 100% Completion Vision: Production-Ready PHP Security Analysis & Hardening Tool

Current Status Assessment (40%)

✅ Implemented (Strong Foundation)

  • AST: Comprehensive PHP 8.x AST with modern features (attributes, enums, match, etc.)
  • Parser: Megaparsec-based PHP parser (basic structures working)
  • Security Analysis: Extensive vulnerability detection
    • SQL injection, XSS, CSRF, command injection
    • Path traversal, unsafe deserialization
    • Weak crypto (with modern recommendations: SHAKE3-256/BLAKE3)
    • Hardcoded secrets detection
    • Dangerous function flagging
  • Transform/Sanitize: WordPress-specific security transformations
    • Output escaping (esc_html, esc_attr, etc.)
    • Input sanitization detection
    • SQL preparation wrapping
    • Superglobal sanitization
    • Exit after redirect
  • WordPress: WordPress-specific constraint checking
  • Core Modules: Config, Report, Ruleset (exist but need verification)

⚠️ Needs Completion/Enhancement (60% Gap)

  1. Parser: Needs full PHP 8.x expression/statement coverage
  2. Emit: PHP code generation from AST (critical for transformations)
  3. Taint Analysis: Data flow tracking needs completion
  4. Type Inference: PHP type system inference engine
  5. Dead Code: Unused code detection
  6. CLI: Production-ready command-line interface
  7. Testing: Comprehensive test suite
  8. Documentation: User guide, API docs, examples

Phase 1: Core Completion (8-12h) - CRITICAL

1.1 Complete Parser (3-4h) ✅ COMPLETE

Priority: CRITICAL - Nothing works without a complete parser

  • Expression parsing completion

    • Match expressions (PHP 8.0) ✓
    • Null coalescing assignment (??=) ✓
    • Spread operator in arrays ✓
    • Arrow functions with attributes ✓
    • Ternary and elvis operators ✓
    • Method calls and property access (including nullsafe) ✓

  • Statement parsing completion

    • Try/catch with multiple exception types ✓
    • Switch/match comprehensive coverage ✓
    • Declare directives (ticks, encoding) ✓
    • Global, static, unset statements ✓

  • Modern PHP 8.x features

    • Readonly classes (PHP 8.2) ✓
    • DNF types (PHP 8.2) - (A&B)|(C&D) ✓
    • Constants in traits ✓
    • Attributes on all declarations ✓
    • Interface and enum parsing ✓
    • Constructor property promotion ✓

  • Robustness (deferred to Phase 5)

    • Better error recovery (don't fail on single parse error)
    • Preserve whitespace/comments as metadata (for code generation)
    • Line/column tracking for all nodes (partially done)

1.2 Complete Emit - Code Generation (3-4h) ✅ COMPLETE

Priority: CRITICAL - Required for all transformations

  • Pretty printer from AST

    • Generate readable PHP code ✓
    • All statements (match, try/catch, declare, global, static, unset) ✓
    • All expressions (closures, arrow functions, yield, throw) ✓
    • All declarations (interface, trait, enum, functions, classes) ✓
    • Attributes on all declarations ✓
    • DNF types with proper parenthesization ✓
    • Constructor property promotion ✓

  • Transformation output (deferred to Phase 4)

    • Apply transform passes to AST
    • Emit modified code
    • Diff generation (show what changed)

  • Code style enforcement (deferred to Phase 4)

    • PSR-12 compliance option
    • WordPress coding standards option
    • Configurable brace style, spacing

1.3 Type Inference Completion (2-3h)

Priority: HIGH - Enables automatic type hint addition

  • Basic type inference

    • Infer return types from function bodies
    • Infer parameter types from usage
    • Propagate types through assignments

  • WordPress type inference

    • Recognize WordPress function signatures
    • Hook parameter type inference
    • WP_Query, WP_Post type awareness

  • Generics awareness

    • array inference
    • Collection type tracking

Phase 2: Advanced Analysis (8-10h)

2.1 Complete Taint Tracking (3-4h)

Priority: HIGH - Critical for security analysis accuracy

  • Data flow graph

    • Build control flow graph
    • Track tainted data propagation
    • Source → Sink analysis

  • Taint sources

    • Superglobals ($_GET, $_POST, $_COOKIE, etc.)
    • Database query results (trust context)
    • User input functions (file_get_contents, etc.)

  • Sanitizers recognition

    • WordPress sanitization functions
    • PHP filter functions
    • Custom sanitizer patterns

  • Sinks

    • SQL queries, shell commands
    • File operations, eval
    • Output (echo, print)

2.2 WordPress-Specific Deep Analysis (2-3h)

Priority: MEDIUM - Differentiator for WP developers

  • Hook analysis

    • Detect priority conflicts
    • Find missing/misplaced hooks
    • Identify wrong hook usage

  • Capability checking

    • Find missing current_user_can() checks
    • Detect privilege escalation risks
    • Admin vs frontend context

  • Nonce verification

    • Comprehensive CSRF detection
    • Find form submissions without nonces
    • AJAX handler nonce checking

  • Database query analysis

    • $wpdb->prepare() compliance
    • Direct SQL detection
    • Table prefix usage

  • Internationalization

    • Find untranslated strings
    • Detect missing text domains
    • Check escaping+translation combos

2.3 Advanced Security Checks (3-4h)

Priority: HIGH - Beyond basic OWASP

  • Time-of-check-time-of-use (TOCTOU)

    • File operation race conditions
    • Permission check bypasses

  • Regular expression DoS (ReDoS)

    • Detect catastrophic backtracking patterns
    • Flag unsafe regex in preg_* functions

  • Server-Side Request Forgery (SSRF)

    • wp_remote_get/post with user input
    • file_get_contents with URLs

  • XML External Entity (XXE)

    • simplexml_load_* without disable_entity_loader
    • DOMDocument loadXML safety

  • Insecure direct object references

    • Missing ownership checks on database queries
    • User ID manipulation detection

  • Mass assignment vulnerabilities

    • Unvalidated array assignments to models

Phase 3: Production CLI & Tooling (6-8h)

3.1 Enhanced CLI (3-4h) ✅ COMPLETE

Priority: HIGH - User-facing interface

  • Command improvements

    • sanctify analyze - full analysis with report ✓
    • sanctify fix --interactive - interactive fixing with previews ✓
    • sanctify fix --diff - show unified diff of changes ✓
    • sanctify --watch - watch mode for development ✓

  • Output formats

    • JSON (machine-readable) ✓
    • SARIF (GitHub/GitLab integration) ✓
    • HTML (rich visualization) ✓
    • Terminal (text output) ✓

  • Filtering & targeting

    • --severity=high,critical - filter by severity ✓
    • --type=sql,xss - filter by vulnerability type ✓
    • --in-place - apply fixes to files ✓
    • --verbose - detailed output ✓

  • Performance (deferred to Phase 6)

    • Parallel file processing
    • Incremental analysis (only changed files)
    • Result caching
    • .sanctifyignore support

3.2 Integration & Export (2-3h)

Priority: MEDIUM - DevOps integration

  • CI/CD integration

    • Exit codes for CI failure
    • GitHub Actions integration
    • GitLab CI templates
    • Pre-commit hooks

  • IDE integration preparation

    • Language Server Protocol (LSP) foundations
    • JSON-RPC interface
    • Real-time analysis hooks

  • Configuration export

    • php.ini hardening recommendations
    • nginx/Apache security headers
    • Guix/Nix package definitions
    • Docker security options

3.3 Reporting & Metrics (1-2h)

Priority: MEDIUM - Visibility and tracking

  • Comprehensive reports

    • Executive summary
    • Trend analysis (compare with previous scans)
    • Remediation guidance with code examples
    • Risk scoring

  • Metrics & dashboards

    • Security score calculation
    • Issue distribution (by type, severity, file)
    • Fix effort estimation
    • Progress tracking

Phase 4: Advanced Transformations (6-8h)

4.1 Automatic Fixes (4-5h)

Priority: HIGH - Save developer time

  • Safe auto-fixes (zero-risk, always apply)

    • Add declare(strict_types=1)
    • Add ABSPATH check to WP files
    • Convert rand() → random_int()
    • Add exit after wp_redirect()
    • Fix missing text domains in i18n functions

  • Semi-automatic fixes (suggest with preview)

    • Wrap superglobals with sanitizers
    • Replace $wpdb->query() with $wpdb->prepare()
    • Add nonce verification scaffolding
    • Wrap echo with esc_html()

  • Type hint addition

    • Infer and add parameter types
    • Infer and add return types
    • Add property types

  • Modernization

    • Convert old array() → []
    • Convert isset() chains → null coalescing
    • Convert create_function() → closures

4.2 Code Quality Transformations (2-3h)

Priority: MEDIUM - Beyond security

  • PSR compliance

    • Naming conventions
    • File organization
    • Docblock generation

  • WordPress standards

    • Yoda conditions
    • Brace style
    • Hook documentation

Phase 5: Testing & Documentation (4-6h)

5.1 Test Suite (2-3h)

Priority: HIGH - Ensure reliability

  • Unit tests

    • Parser tests (golden files)
    • Analysis tests (vulnerability detection)
    • Transform tests (before/after)

  • Integration tests

    • Full WordPress plugin analysis
    • Real-world vulnerability detection
    • Fix application verification

  • Property-based testing

    • Parser round-trip (parse → emit → parse)
    • Transform idempotence

5.2 Documentation (2-3h)

Priority: MEDIUM - User success

  • User guide

    • Installation (Cabal, Stack, Nix, binaries)
    • Quick start tutorial
    • Configuration guide
    • Workflow examples

  • Rule documentation

    • Security check reference
    • Transform catalog
    • WordPress-specific rules

  • API documentation

    • Haddock coverage
    • Library usage examples
    • Extension guide

Phase 6: Advanced Features (Optional, 4-6h)

6.1 Machine Learning Integration (2-3h)

Priority: LOW - Cutting edge, experimental

  • Pattern learning

    • Learn safe patterns from codebase
    • Reduce false positives
    • Suggest fixes based on codebase style

  • Anomaly detection

    • Find unusual code patterns
    • Detect obfuscated malware

6.2 Plugin Ecosystem (2-3h)

Priority: LOW - Extensibility

  • Custom rule engine

    • DSL for defining custom checks
    • Custom transformation passes
    • Project-specific rules

  • Plugin architecture

    • Load external analysis modules
    • Custom sanitizer definitions
    • Framework-specific analyzers (Laravel, Symfony, etc.)

Summary: Path to 100%

Phase Hours Completion Gain Target %
Current - - 40%
Phase 1: Core Completion 8-12 +25% 65%
Phase 2: Advanced Analysis 8-10 +15% 80%
Phase 3: Production CLI 6-8 +10% 90%
Phase 4: Advanced Transforms 6-8 +5% 95%
Phase 5: Testing & Docs 4-6 +5% 100%
TOTAL 32-44h +60% 100%

Critical Path (to 80%):

  1. Complete Parser (4h)
  2. Complete Emit (4h)
  3. Complete Type Inference (3h)
  4. Complete Taint Tracking (4h)
  5. WordPress Deep Analysis (3h)
  6. Enhanced CLI (4h)
  7. Automatic Fixes (5h)

Total Critical Path: 27h