eiritana/meguca

anonymous realtime imageboard focused on high performance, free speech and transparent moderation

meguca

real-time anonymous imageboard focused on high performance, free speech and transparent moderation

Platforms: Linux, OSX, Win64

License: GNU AGPL

Features

Posts and posting

• Character by character post updates
• Hovering quick reply for post authoring
• Dice roll, coin flip and eightball commands
• Desktop notifications and "(You)" links on quote
• Post link hover previews, including cross-thread
• Inline post link expansion
• Optional relative post timestamps
• Non-temporal and recursive post linking
• No posts per thread or threads per board limit
• Forced anonymity display mode
• Post hiding
• Option to display only the last 100 posts in a thread
• Optional automatic deletion of unused threads and boards
• Automatic URL linkification
• Automatic intelligent quoting of selected text, when quoting a post
• Live programming code tags with syntax highlighting
• Automatic open post recovery after a disconnect
• Toggleable non-live post creation
• Keyboard post navigation
• Explicitly visible sage
• Responsive seen post detection
• Score-based antispam system
• Optional recursive post hiding

Files and images

• JPEG, PNG, APNG, WEBM, MP3, FLAC, MP4, OGG, PDF, ZIP, 7Z, TAR.GZ, TAR.XZ, TXT are supported
• Transparent PNG and GIF thumbnails
• Configurable size limits
• Inbuilt reverse image search
• No file is ever thumbnailed or stored twice, reducing server load and disk space usage
• Any file already present on the server is "uploaded and thumbnailed" instantly
• Title metadata extraction
• Gallery mode

Performance

• Low memory and CPU usage
• No frameworks and optimized code on both client and server
• File upload processing written in C with GraphicsMagick and ffmpeg
• Inbuilt custom multi-level LRU cache

Client UI

• Works with all modern and most outdated browsers (such as PaleMoon)
• Works with JavaScript disabled browsers
• Multiple themes
• Custom user-set backgrounds and CSS
• Mascots
• Configurable keyboard shortcuts
• Work mode aka Boss key
• Customisable top banner board link list
• Optional animated GIF thumbnails
• Settings export/import to/from JSON file

Board administration/moderation

• Support for both centralized and 8chan-style board ownership
• Global admin -> users notification system
• User board creation and configuration panels
• 4 tier staff system
• Board-level and global bans
• Transparent post deletion
• Viewing of all post made by same IP
• Deleting all posts with same IP
• Option to disable search indexing on board
• Sticky threads
• Public ban list
• Public moderation log
• Mod image spoilering
• Image banners
• Custom per-board loading image
• Default board theme setting
• Optional poster country flag display
• Option to hide NSFW boards from /all/

Internationalization

• Client almost entirely localized in multiple languages
• More languages can be added by editing simple JSON files

Miscellaneous

• Documented public JSON API
• Optional R/a/dio Now Playing banner
• Synchronized time counters (for group watching sessions and such)
• Thread-level connected unique IP counter
• Internal captcha system

Runtime dependencies

• PostgresSQL >= 9.5

Building from source

A reference list of commands can be found in ./docs/installation.md

Build dependencies

• Go >=1.9.2 (for building server)
• Node.js >=5.0 (for building client)
• GCC or Clang
• make
• pkg-config
• pthread
• ffmpeg >= 3.1 libraries (libavcodec, libavutil, libavformat, libswscale) compiled with:
  • libvpx
  • libvorbis
  • libopus
  • libtheora
  • libx264
  • libmp3lame
• GraphicsMagick compiled with:
  • zlib
  • libpng
  • libjpeg
  • postscript
• ghostscript
• git

Linux and OSX

• Run make

Windows

• Install MSYS2
• Open MSYS2 shell
• Install dependencies listed above with the mingw-w64-x86_64- prefix with pacman
• Navigate to the meguca root directory
• Run make

Setup

• See ./meguca help for server operation
• Login into the "admin" account via the infinity symbol in the top banner with the password "password"
• Change the default password
• Create a board from the administration panel
• Configure server from the administration panel
• To enable country flags on posts download and place GeoLite2-Country.mmdb into the root directory

Development

• Prebuilt docker development image
  • Install Docker
  • docker build -t meguca_dev . to build the image
  • docker run -t -i meguca_dev to start and login into the image
  • service postgresql start to start the database server
• See ./docs for more documentation
• ./meguca or ./meguca debug run the server in development mode
• make server and make client build the server and client separately
• make watch watches the file system for changes and incrementally rebuilds the client
• make update_deps updates all dependencies
• make clean removes files from the previous compilation
• make dist_clean in addition to the above removes uploaded files and their thumbnails
• To enable using Go tools in the project add the absolute path of ./go to your $GOPATH environment variable

C++ client

For developing the new C++ client

• Run git submodule update --init --recursive
• Install Emscripten
• Ensure Emscripten environment variables by running source emsdk_env.sh in your shell
• Use DEBUG=1 make wasm and make wasm_clean to compile the C++ client and clean build directories
• To use the C++ client for meguca add the ?wasm=true query string to the end of the URL