quoid/userscripts

Features

• Userscript Managers - A browser extension that installs and runs custom JavaScript and CSS on websites through Safari's content script injection system.
• Userscript Metadata Definitions - Uses tags like @match, @run-at, @weight, and @require to control when and where a userscript executes.
• Userscript Lifecycle Controllers - Controls script installation, update checking, and execution timing through parsed metadata tags like @match, @version, and @run-at.
• Cross-Origin Request Engines - Enables userscripts to perform HTTP requests to any domain via GM.xmlHttpRequest, bypassing same-origin policy through the privileged background context.
• Cross-Origin HTTP Request APIs - Provides GM.xmlHttpRequest for cross-origin requests with configurable headers, timeouts, and methods.
• Privileged Browser - Provides a persistent background execution environment that bypasses standard browser sandbox restrictions for network requests and clipboard access.
• Browser Extension Script Managers - Provides a sidebar, editor, and controls to add, edit, enable, disable, and delete custom JavaScript and CSS files.
• Script Update Management - Checking remote sources for newer script versions and automatically downloading updates when metadata specifies version and update URLs.
• Content Script Injection Architectures - Injects user scripts into web pages at configurable lifecycle points using Safari's content script API and metadata-driven matching rules.
• Per-Page Injection Controls - Matches userscripts to domains using metadata tags and allows toggling injection on/off for individual scripts.
• Metadata-Driven Injection Engines - Matches scripts to domains using @match, @run-at, and @weight tags for precise injection timing and targeting.
• Page-Specific Script Execution - Runs user-installed scripts automatically when a matching website loads, modifying its behavior or appearance.
• Metadata-Driven Injection Controls - Matching userscripts to specific domains using metadata tags and controlling injection timing and execution context per page.
• Userscript File Storage - Reads and writes userscript files directly from a user-selected filesystem directory, enabling external editing and version control.
• Key-Value Persistence Stores - Offers per-script persistent data storage across browser sessions using GM.setValue and GM.getValue APIs backed by Safari's extension storage.
• Userscript Key-Value Stores - Offers GMsetValue and GMgetValue APIs for key-value data that persists across browser sessions per script.
• Automatic Script Updates - Automatically synchronizes local userscripts with newer versions from configured remote URLs using @updateURL metadata.
• Inline Script Editors - Provides a built-in code editor with syntax highlighting, linting, and bracket matching for modifying scripts directly within the extension.
• Userscript - Includes a built-in editor with syntax hints, linting, and bracket matching for modifying userscripts directly.
• Script Directory Selectors - Selects a directory on the filesystem where the extension reads and writes userscript files.
• CSS Injection - Injecting dynamic CSS rules into web pages to override or extend site appearance using GM.addStyle from userscripts.
• Dynamic Style Injections - Injects custom CSS rules into web pages at runtime using GM.addStyle, overriding or extending site styles programmatically.

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