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Security hardening & robustness#5

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mindedal merged 9 commits intomainfrom
Security-Hardening-&-Robustness
Oct 6, 2025
Merged

Security hardening & robustness#5
mindedal merged 9 commits intomainfrom
Security-Hardening-&-Robustness

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@mindedal mindedal commented Oct 6, 2025

This pull request introduces extensive improvements for cross-platform development, build automation, and development environment configuration. The main focus is to streamline building, testing, and running the Go chat server on Windows, macOS, and Linux, while also improving developer experience through enhanced tooling and documentation.

The most important changes include:

Cross-Platform Build and Development Enhancements:

  • Major refactor of the Makefile to support Windows, macOS, and Linux, including platform-specific binary names, directories, and PowerShell support on Windows. Added targets for cross-compilation to all major OS/architectures and improved the release process with checksum generation for each build. [1] [2] [3] [4] [5] [6]
  • Added .gitattributes for consistent line endings and binary/text file handling across platforms.
  • Added .air.toml for hot reload development using Air, improving local development workflow.

Development Environment and Tooling:

  • Added .editorconfig to enforce consistent code style and indentation across file types and editors.
  • Enhanced VSCode support:
    • Expanded recommended extensions for Go, YAML, Makefile, PowerShell, linting, spell check, Docker, and GitHub Actions.
    • Added launch.json with debug configurations for running and testing the server.
    • Added tasks.json with build, test, lint, security, and clean tasks for streamlined workflow.

Documentation Updates:

  • Updated README.md to highlight cross-platform support, optional Make usage, and detailed build/run instructions for all major platforms. Added guidance for users without Make and clarified prerequisites. [1] [2] [3]

…miting, and configuration

- Added Client struct to manage WebSocket connections, including read/write pumps and rate limiting.
- Implemented Hub struct to coordinate client registration, message broadcasting, and connection cleanup.
- Created configuration management for server settings, including rate limiting and allowed origins.
- Developed HTTP handlers for WebSocket upgrades, health checks, and a test page for client interaction.
- Introduced rate limiter to control message sending rates per client connection.
- Established origin validation to enforce access control for WebSocket connections.
- Set up routing for application endpoints using an HTTP ServeMux.
- Defined shared message types for communication between clients and the hub.
- Introduced BUILD_GUIDE.md for quick build commands and platform-specific instructions.
- Created CROSS_PLATFORM.md detailing prerequisites, building, cross-compilation, and platform-specific code.
- Developed CROSS_PLATFORM_GUIDE.md to provide an extensive guide on development setup, building, and troubleshooting across platforms.
- Added CROSS_PLATFORM_SETUP.md summarizing cross-platform capabilities and configurations.
- Compiled QUICK_REFERENCE.md for a concise reference on build commands, development workflow, and troubleshooting.
- Added graceful shutdown mechanism in the Hub and HTTP server.
- Implemented context-based shutdown with goroutine tracking.
- Enhanced error handling for read and write operations in WebSocket connections.
- Created integration tests for shutdown scenarios, including active clients and message handling.
- Developed unit tests for error handling, ensuring proper logging and panic recovery.
- Introduced WebSocket connection helpers and message utilities in test helpers.
- Updated health check tests to use constants for expected responses.
- Refactored WebSocket handler tests to improve readability and maintainability.
@mindedal mindedal requested a review from Copilot October 6, 2025 22:20
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Pull Request Overview

This PR refactors the server into modular components (hub, client, handlers, config, origin validation, rate limiting, graceful shutdown) and adds extensive cross‑platform build, tooling, and documentation improvements. Key changes focus on security hardening (origin / rate limiting), graceful shutdown, and developer experience (Makefile portability, VSCode tasks, docs).

  • Introduces configurable security (origin allow‑list, message size, rate limiting) and graceful shutdown orchestration.
  • Splits monolithic server.go into focused files (client, hub, handlers, config, origin, rate_limiter, http server, types) plus added comprehensive test coverage (unit + integration) for lifecycle, errors, and shutdown.
  • Adds cross-platform build targets, editor/tooling configs, and detailed documentation (build, cross-platform, graceful shutdown).

Reviewed Changes

Copilot reviewed 33 out of 40 changed files in this pull request and generated 7 comments.

Show a summary per file
File Description
internal/server/*.go Refactored server into modular components with config, origin validation, rate limiting, graceful shutdown.
cmd/server/main.go Adds graceful shutdown signal handling and coordinated hub/server shutdown.
test/unit/*.go Adds/updates unit tests for handlers, WebSocket method validation, error handling constants.
test/integration/*.go Adds extensive integration tests for WebSocket behavior, broadcasting, origin validation, rate limiting, shutdown scenarios.
test/testhelpers/helpers.go Adds reusable WebSocket test helper utilities.
Makefile Expanded to cross-platform targets, release process, checksum generation; Windows shell support.
README.md & docs/*.md Expanded cross-platform, build, graceful shutdown, and operational documentation.
.vscode/*, .editorconfig, .gitattributes, .air.toml Tooling, formatting, hot reload, and environment consistency configurations.

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@mindedal mindedal merged commit d0519d0 into main Oct 6, 2025
12 checks passed
@mindedal mindedal deleted the Security-Hardening-&-Robustness branch October 6, 2025 22:40
mindedal added a commit that referenced this pull request Oct 29, 2025
This PR refactors the server into modular components (hub, client, handlers, config, origin validation, rate limiting, graceful shutdown) and adds extensive cross‑platform build, tooling, and documentation improvements. Key changes focus on security hardening (origin / rate limiting), graceful shutdown, and developer experience (Makefile portability, VSCode tasks, docs).

Introduces configurable security (origin allow‑list, message size, rate limiting) and graceful shutdown orchestration.
Splits monolithic server.go into focused files (client, hub, handlers, config, origin, rate_limiter, http server, types) plus added comprehensive test coverage (unit + integration) for lifecycle, errors, and shutdown.
Adds cross-platform build targets, editor/tooling configs, and detailed documentation (build, cross-platform, graceful shutdown).
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2 participants