posativ/isso
Isso
Isso is a self-hosted commenting system and WSGI comment server that allows users to manage decentralized discussion boards. It functions as a markdown discussion engine that transforms user-generated content into filtered HTML for secure display on webpages.
The system is designed as a cross-domain comment host, enabling a single centralized server instance to serve unique comment sections across multiple distinct domains. It secures this integration using CORS hostname whitelisting to ensure comments are only embeddable on authorized websites.
The platform provides a comprehensive moderation interface with a password-protected administration panel and a review queue for screening posts. Additional capabilities include SMTP-based email notifications, user identicon generation, and the ability to migrate conversation history from external platforms via JSON imports.
The server can be deployed via containerized environments, FastCGI, or as a system service.
Features
- Self-Hosted Commenting Systems - Provides a self-hosted server for managing and displaying decentralized user comment sections.
- Multi-Domain Comment Hosting - Acts as a cross-domain comment host, serving unique discussion sections to multiple authorized websites from one instance.
- User Comment Moderation - Provides a password-protected administrative interface for reviewing, approving, and removing user-submitted comments.
- Approval Queues - Implements a review queue that holds comments to prevent public appearance until they are activated.
- Markdown to HTML Converters - Transforms markdown syntax into sanitized HTML to support formatted comments while preventing cross-site scripting.
- Secure Markdown Rendering - Converts markdown syntax into sanitized HTML to enable formatted comments while preventing XSS.
- Multi-Site Hosting - Serves unique comment sections across multiple distinct domains from a single centralized server instance.
- Domain Whitelists - Secures the system by restricting comment embedding to authorized websites via origin header verification.
- CORS Origin Whitelists - Secures the cross-domain hosting by verifying origin headers against a whitelist of authorized hostnames.
- Content Engagement Interactions - Implements interactive elements including markdown comments, voting, and email notifications to foster community engagement.
- Embedded Comment Threads - Integrates discussion sections into webpages via a script tag with configurable data attributes.
- WSGI Application Servers - Operates as a WSGI-compliant application server to handle web requests for the commenting system.
- Comment Voting Systems - Includes a scoring system for comments with visual highlights for popular content.
- Comment Visibility Controls - Provides controls to manage the number of top-level and nested comments displayed by default.
- Markdown-HTML Content Converters - Implements a secure transformer that converts markdown syntax into sanitized HTML for user-generated content.
- Sub-URI Serving - Supports hosting the server on a sub-path of the domain to bypass CORS restrictions.
- Comment Data Migrations - Provides tools to migrate historical conversation threads from external platforms into the local system.
- JSON Data Import - Enables migration of conversation history from external platforms by importing structured JSON files.
- Comment Data Importers - Includes a migration utility to import conversation history from external platforms via JSON files.
- Author-Led Post Management - Allows comment authors to edit or delete their own posts within a configurable timeframe.
- Containerized Server Deployments - Supports deployment within official or custom container images to ensure environment isolation.
- SMTP Notification Systems - Triggers automated email alerts for new comments and reply requests via a configured SMTP server.
- Signed URL Moderation - Implements secure signed URLs to allow moderators or authors to activate or delete comments without requiring a full login.
- Asynchronous Comment Refreshing - Uses AJAX to dynamically update comment threads and counts without requiring a full page reload.
- Comment Management APIs - Implements a programmatic API for creating, retrieving, updating, and removing comment threads.
- Commenting Engines - Self-hosted, lightweight commenting server for websites.
- Commenting Systems - Drop-in commenting server for static and dynamic sites.
- Social Networks and Forums - Lightweight commenting server for blogs.
