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Simple HTTP Daemon - Development Checklist

Project Status: ✅ 1.0.0 production contract

Last Updated: September 2026 Current Version: 1.0.0 Next Milestone: optional 1.1+ (HTTP/3 / wishlist) — not blocking

Phase 1: Foundation ✅ COMPLETED

Timeline: Initial implementation Status: 100% Complete

Core Infrastructure

  • Project structure and build system
  • CMake configuration with static linking support
  • Cross-platform build scripts (Linux, macOS, Windows)
  • CI/CD pipeline setup (.travis.yml, Jenkinsfile)
  • Basic daemon framework
  • Configuration management system
  • Logging infrastructure
  • Signal handling and graceful shutdown
  • Apache 2.0 license headers

Development Tools

  • Standardized Makefile
  • Deployment configurations (systemd, launchd, Windows)
  • Docker containerization
  • Package generation (DEB, RPM, DMG, MSI)
  • Build system testing
  • Git repository setup
  • Initial documentation

Phase 2: Core HTTP Protocol Implementation ✅ COMPLETED

Timeline: 4-6 weeks Status: HTTP/1.1 + HTTP/2 in 0.5.0; HTTP/3 deferred Shipped: 0.5.0

HTTP Protocol Stack

  • HTTP request parsing
    • HTTP method parsing (GET, POST, PUT, DELETE, etc.)
    • HTTP URI parsing
    • HTTP version parsing
    • HTTP header parsing
    • HTTP body parsing
    • HTTP query string parsing
  • HTTP response generation
    • HTTP status code handling
    • HTTP header generation
    • HTTP body generation
    • HTTP response formatting
    • HTTP response validation
  • HTTP/1.1 protocol support
    • HTTP/1.1 compliance
    • Keep-alive support
    • Chunked transfer encoding
    • Content-Length handling
    • Connection management
  • HTTP/2 protocol support
    • HTTP/2 framing
    • Stream multiplexing
    • Header compression (HPACK)
    • Server push (not implemented; deprecated)
    • Flow control
  • HTTP/3 protocol support (future)
    • QUIC protocol integration
    • HTTP/3 framing
    • QUIC stream management
    • HTTP/3 optimization
  • Protocol negotiation and version selection
    • ALPN support
    • Protocol detection
    • Version selection logic
    • Fallback mechanisms

Network Layer

  • TCP connection handling
    • TCP socket creation
    • TCP connection acceptance
    • TCP data transmission
    • TCP connection cleanup
  • Connection pooling and management
    • Connection pool implementation
    • Connection lifecycle management
    • Connection health monitoring
    • Connection cleanup
  • Request/response queuing
    • Request queue implementation
    • Response queue implementation
    • Priority queuing
    • Queue management
  • Timeout and retry mechanisms
    • Connection timeout handling
    • Request timeout handling
    • Retry logic implementation
    • Timeout configuration
  • Connection multiplexing
    • Multiple request handling
    • Concurrent response processing
    • Connection sharing
    • Load balancing
  • Keep-alive support
    • Keep-alive header handling
    • Connection reuse
    • Keep-alive timeout
    • Keep-alive optimization

Security Features

  • HTTPS support (TLS/SSL)
    • TLS/SSL integration
    • Certificate handling
    • SSL context management
    • SSL handshake
    • SSL session management
  • Certificate management
    • Certificate loading
    • Certificate validation
    • Certificate renewal
    • Certificate chain validation
  • HTTP Strict Transport Security (HSTS)
    • HSTS header generation
    • HSTS policy enforcement
    • HSTS configuration
    • HSTS monitoring
  • Content Security Policy (CSP)
    • CSP header generation
    • CSP policy enforcement
    • CSP configuration
    • CSP monitoring
  • HTTP authentication
    • Basic authentication
    • Digest authentication
    • Bearer token authentication
    • Custom authentication
  • Rate limiting
    • Request rate limiting
    • Connection rate limiting
    • IP-based rate limiting
    • Rate limit configuration

Phase 3: Web Server Features ✅ COMPLETED

Timeline: 6-8 weeks Status: Static files in 0.2.0–0.4.0; extras in 0.6.0 Shipped: 0.6.0

Core Web Features

  • Static file serving
    • File system integration
    • File type detection
    • File access control
    • File caching
    • File compression
  • Directory browsing
    • Directory listing
    • Directory navigation
    • Directory access control
    • Directory customization
  • MIME type handling
    • MIME type detection
    • MIME type configuration
    • MIME type mapping
    • MIME type validation
  • Content compression (gzip, deflate)
    • Gzip compression
    • Deflate compression
    • Compression configuration
    • Compression optimization
  • Range requests support
    • Range header parsing
    • Partial content serving
    • Range request validation
    • Range request optimization
  • Conditional requests (ETag, Last-Modified)
    • ETag generation
    • Last-Modified handling
    • Conditional request validation
    • Cache validation

Advanced Features

  • Virtual hosting
    • Virtual host configuration
    • Virtual host routing
    • Virtual host management
    • Virtual host monitoring
  • URL rewriting
    • URL rewrite rules
    • URL rewrite engine
    • URL rewrite configuration
    • URL rewrite testing
  • Reverse proxy support
    • Reverse proxy configuration
    • Backend server management
    • Load balancing (round-robin)
    • Health checking
  • Load balancing
    • Load balancer implementation (round-robin)
    • Load balancing algorithms (round-robin only)
    • Health checking
    • Failover support (next backend on connect failure)
  • Caching mechanisms
    • Response caching (in-memory file bodies)
    • Cache invalidation (mtime, size, TTL)
    • Cache policies (size caps + TTL)
    • Cache monitoring
  • WebSocket support
    • WebSocket protocol (opaque HTTP/1.1 Upgrade tunnel)
    • WebSocket handshake
    • WebSocket messaging (frames are not interpreted)
    • WebSocket management

Content Management

  • CGI support
    • CGI protocol implementation
    • CGI process management
    • CGI environment setup
    • CGI security (executable under document root; prefix match)
  • FastCGI support
    • FastCGI protocol (minimal TCP client)
    • FastCGI process management
    • FastCGI connection pooling
    • FastCGI optimization
  • Server-side includes (SSI)
    • SSI processing
    • SSI directives (include, echo; exec refused)
    • SSI security (path confined to document root)
    • SSI optimization
  • Template processing
    • Template engine (SSI only)
    • Template compilation
    • Template caching
    • Template security (no exec)
  • Dynamic content generation
    • Dynamic content handlers (CGI / FastCGI / SSI)
    • Content generation pipeline
    • Content caching (file cache)
    • Content optimization
  • API endpoint handling
    • REST API support (/healthz, /metrics only)
    • API routing
    • API authentication (ops endpoints skip Basic / rate limits)
    • API documentation

Phase 4: Performance & Monitoring ✅ COMPLETED

Timeline: 8-10 weeks Status: Metrics/health from 0.4.0; I/O, reload, status in 0.7.0 Shipped: 0.7.0

Performance Optimization

  • Connection pooling optimization
    • Pool sizing optimization (worker_threads, max_connections)
    • Pool management optimization (reject at capacity)
    • Pool monitoring (active/queue Prometheus gauges)
    • Pool tuning (config keys + docs)
  • Memory management optimization
    • Memory pooling (thread-local stream buffer)
    • Garbage collection (N/A in C++)
    • Memory profiling
    • Memory leak detection
  • I/O optimization
    • Asynchronous I/O (still blocking workers)
    • I/O batching (keep-alive; sendfile)
    • I/O prioritization
    • I/O monitoring (bytes + duration metrics)
  • Request batching
    • Batch processing (HTTP/1.1 keep-alive)
    • Batch optimization
    • Batch scheduling
    • Batch monitoring
  • Response caching
    • Cache hit optimization (LRU + metrics)
    • Cache size optimization (max bytes / entry)
    • Cache eviction policies (LRU + TTL)
    • Cache performance tuning
  • Load balancing
    • Load distribution (proxy round-robin)
    • Health checking
    • Failover support (next backend on connect failure)
    • Load monitoring

Monitoring & Management

  • Performance metrics collection
    • Request metrics
    • Response metrics
    • Connection metrics
    • Error metrics (by status)
  • Health monitoring
    • Health checks
    • Status reporting (/status JSON)
    • Alerting
    • Health dashboards
  • Configuration hot-reloading
    • Config reloading (SIGHUP soft reload)
    • Runtime updates (safe keys)
    • Change validation
    • Rollback support
  • Remote management interface
    • Management API (read-only /status)
    • Remote configuration
    • Remote monitoring (/metrics, /status)
    • Remote control
  • SNMP integration (deferred; use Prometheus)
    • SNMP agent
    • MIB definitions
    • SNMP monitoring
    • SNMP alerts
  • Prometheus metrics export
    • Metrics endpoint
    • Prometheus integration
    • Grafana dashboards (scrape example in docs)
    • Alerting rules

High Availability

  • Clustering support
    • Cluster membership (external LB + multi-instance docs)
    • Cluster coordination
    • Cluster failover
    • Cluster monitoring
  • Failover mechanisms
    • Automatic failover (proxy connect; supervisor restart)
    • Manual failover
    • Failover testing
    • Failover monitoring
  • Data replication (N/A — sync document root externally)
    • Data synchronization
    • Conflict resolution
    • Replication monitoring
    • Replication optimization
  • Backup and restore
    • Backup procedures
    • Restore procedures
    • Backup validation
    • Backup monitoring
  • Disaster recovery
    • Recovery procedures
    • Recovery testing
    • Recovery documentation
    • Recovery monitoring

Phase 5: Enterprise Features ✅ COMPLETE (0.8.0)

Timeline: shipped Status: Complete for static-file scope Shipped: 0.8.0

Advanced Security

  • Advanced TLS features (TLS 1.3 preference/floor, ECDHE/PFS; OCSP deferred)
  • Security headers
  • Request filtering (+ CIDR allow/deny)
  • DDoS protection (request + connection rate limits, per-IP caps)
  • Security auditing (security_log)
  • Compliance reporting (operator checklist)

Integration & APIs

  • REST management API ({admin_path}/config, {admin_path}/reload)
  • GraphQL — out of scope
  • WebSocket (proxy Upgrade tunnel; 0.6.0)
  • Plugin architecture — out of scope
  • Third-party integrations — out of scope
  • Cloud storage backends — out of scope

Scalability

  • Horizontal scaling (stateless multi-instance docs)
  • Load balancing (proxy RR + external LB / k8s)
  • Distributed serving — N/A
  • Cloud deployment / container orchestration docs
  • Microservices architecture — N/A

Also: Unix daemonize, privilege drop, pid file.

Testing & Quality Assurance

Unit Testing

  • HTTP protocol implementation testing
    • HTTP request tests
    • HTTP response tests
    • HTTP header tests
  • Request/response handling testing
    • Request parsing tests
    • Response generation tests
    • Error handling tests
  • Security feature testing
    • HTTPS tests
    • Authentication tests
    • Security header tests
  • Configuration parsing testing
    • Config validation tests
    • Config parsing tests
    • Config error tests

Integration Testing

  • Cross-platform compatibility testing
    • Linux testing
    • macOS testing
    • Windows testing
  • Protocol compatibility testing
    • HTTP version tests
    • Client compatibility tests
    • Interoperability tests
  • Performance benchmarking
    • Throughput tests
    • Latency tests
    • Resource usage tests
  • Security testing
    • Penetration testing
    • Vulnerability testing
    • Security validation

Load Testing

  • High request rate testing
    • RPS limit tests
    • RPS stability tests
    • RPS performance tests
  • Concurrent connection testing
    • Connection limit tests
    • Connection stability tests
    • Connection performance tests
  • Memory usage testing
    • Memory usage tests
    • Memory leak detection
    • Memory optimization tests
  • Stress testing
    • High load tests
    • Failure recovery tests
    • Stability tests

Documentation

User Documentation

  • Installation guide
    • System requirements
    • Installation steps
    • Configuration setup
  • Configuration reference
    • Configuration options
    • Configuration examples
    • Configuration validation
  • Troubleshooting guide
    • Common issues
    • Debug procedures
    • Support information
  • Performance tuning guide
    • Performance optimization
    • Tuning parameters
    • Best practices
  • Security best practices
    • Security configuration
    • Security hardening
    • Security monitoring

Developer Documentation

  • API documentation
    • API reference
    • API examples
    • API versioning
  • Architecture overview
    • System architecture
    • Component design
    • Data flow
  • Contributing guidelines
    • Development setup
    • Code style
    • Pull request process
  • Code style guide
    • Coding standards
    • Naming conventions
    • Documentation standards
  • Testing guidelines
    • Testing strategy
    • Test writing
    • Test execution

Operations Documentation

  • Deployment guide
    • Deployment procedures
    • Environment setup
    • Deployment validation
  • Monitoring setup
    • Monitoring configuration
    • Alerting setup
    • Dashboard configuration
  • Backup procedures
    • Backup strategies
    • Backup procedures
    • Restore procedures
  • Disaster recovery
    • Recovery procedures
    • Recovery testing
    • Recovery documentation
  • Maintenance procedures
    • Maintenance tasks
    • Maintenance schedules
    • Maintenance procedures

Release Milestones

Version 0.1.0 (Alpha) - Q2 2024

Target Features:

  • Basic HTTP/1.1 support
  • Static file serving
  • Basic HTTPS support
  • Core daemon functionality

Acceptance Criteria:

  • Basic HTTP protocol implementation
  • Static file serving
  • HTTPS support
  • Basic configuration
  • Unit test coverage >80%
  • Documentation complete

Version 0.2.0 (Beta) - Q3 2024

Target Features:

  • HTTP/2 support
  • Advanced features
  • Performance optimizations
  • Security features

Acceptance Criteria:

  • HTTP/2 protocol support
  • Virtual hosting
  • Performance improvements
  • Security features
  • Integration test coverage >70%
  • Beta testing complete

Version 0.3.0 (RC) - Q4 2024

Target Features:

  • HTTP/3 support
  • Enterprise features
  • Complete documentation
  • Production readiness

Acceptance Criteria:

  • HTTP/3 protocol support
  • Enterprise features
  • Complete documentation
  • Production readiness
  • Load test validation
  • Security audit complete

Version 1.0.0 (Stable) - Q1 2025

Target Features:

  • Full feature set
  • Production ready
  • Enterprise features
  • Complete documentation

Acceptance Criteria:

  • All planned features implemented
  • Production readiness validation
  • Enterprise features complete
  • Complete documentation
  • Long-term stability testing
  • Release candidate validation

Current Sprint Goals

Sprint 1 (Current)

Duration: 2 weeks Goals:

  • HTTP request parsing framework
  • Basic HTTP/1.1 implementation
  • TCP connection handling
  • Basic response generation

Sprint 2

Duration: 2 weeks Goals:

  • HTTP response generation
  • Static file serving
  • Basic configuration system
  • Error handling

Sprint 3

Duration: 2 weeks Goals:

  • HTTPS support
  • Virtual hosting
  • Performance optimization
  • Security features

Risk Assessment

High Risk

  • HTTP Protocol Complexity: HTTP protocol is complex with many edge cases
  • Security Implementation: HTTPS and security features are critical
  • Performance Requirements: High performance requirements may be challenging

Medium Risk

  • Cross-platform Compatibility: Ensuring compatibility across platforms
  • Integration Testing: Complex integration testing requirements
  • Documentation: Comprehensive documentation requirements

Low Risk

  • Build System: Standardized build system is already in place
  • Basic Infrastructure: Core daemon infrastructure is complete
  • Development Tools: Development tools and CI/CD are set up

Success Metrics

Technical Metrics

  • Test Coverage: >90% unit test coverage
  • Performance: >100,000 RPS per server
  • Concurrency: >50,000 concurrent connections
  • Latency: <1ms for static content
  • Memory Usage: <50MB base + 1KB per connection

Quality Metrics

  • Bug Density: <1 critical bug per 1000 lines of code
  • Code Quality: Maintainability index >80
  • Documentation: >95% API documentation coverage
  • Security: Zero critical security vulnerabilities

Business Metrics

  • User Adoption: Target 1000+ active users
  • Community Engagement: Active contributor community
  • Enterprise Adoption: Enterprise feature adoption
  • Support Quality: <24 hour response time

Notes

Recent Changes

  • 2024-12-XX: Initial project setup and standardization
  • 2024-12-XX: Basic daemon framework implementation
  • 2024-12-XX: Build system and CI/CD setup

Next Steps

  1. Begin HTTP protocol implementation
  2. Set up development environment
  3. Create detailed technical specifications
  4. Start unit test development
  5. Begin integration testing framework

Dependencies

  • OpenSSL: For HTTPS and TLS support
  • JSONCPP: For configuration management
  • CMake: For build system
  • Testing Framework: TBD (Google Test, Catch2, etc.)

Resources

  • Development Team: 2-3 developers
  • Testing Team: 1-2 testers
  • Documentation: 1 technical writer
  • Infrastructure: CI/CD, testing, staging environments