Foreword
Do not edit configuration options in index.php! Your changes would be lost.
Once your Shaarli instance is installed, the file data/config.json.php is generated:
 it contains all settings in JSON format, and can be edited to customize values
 it defines which plugins are enabled
 its values override those defined in index.php
 it is wrap in a PHP comment to prevent anyone accessing it, regardless of server configuration
File and directory permissions
The server process running Shaarli must have:
readaccess to the following resources:- PHP scripts: 
index.php,application/*.php,plugins/*.php - 3rd party PHP and Javascript libraries: 
inc/*.php,inc/*.js - static assets:
- CSS stylesheets: 
inc/*.css images/*
 - CSS stylesheets: 
 - RainTPL templates: 
tpl/*.html 
- PHP scripts: 
 read,writeandexecutionaccess to the following directories:cache- thumbnail cachedata- link data store, configuration optionspagecache- Atom/RSS feed cachetmp- RainTPL page cache
On a Linux distribution:
- the web server user will likely be 
wwworhttp(for Apache2) - it will be a member of a group of the same name: 
www:www,http:http - to give it access to Shaarli, either:
- unzip Shaarli in the default web server location (usually 
/var/www/) and set the web server user as the owner - put users in the same group as the web server, and set the appropriate access rights
 
 - unzip Shaarli in the default web server location (usually 
 - if you have a domain / subdomain to serve Shaarli, configure the server accordingly
 
Configuration
In data/config.json.php.
See also Plugin System.
Credentials
These settings should not be edited
- login: Login username.
 - hash: Generated password hash.
 - salt: Password salt.
 
General
- title: Shaarli's instance title.
 - header_link: Link to the homepage.
 - links_per_page: Number of shaares displayed per page.
 - timezone: See the list of supported timezones.
 - enabled_plugins: List of enabled plugins.
 - default_note_title: Default title of a new note.
 
Security
- session_protection_disabled: Disable session cookie hijacking protection (not recommended). It might be useful if your IP adress often changes.
 - ban_after: Failed login attempts before being IP banned.
 - ban_duration: IP ban duration in seconds.
 - open_shaarli: Anyone can add a new link while logged out if enabled.
 - trusted_proxies: List of trusted IP which won't be banned after failed login attemps. Useful if Shaarli is behind a reverse proxy.
 - allowed_protocols: List of allowed protocols in shaare URLs or markdown-rendered descriptions. Useful if you want to store 
javascript:links (bookmarklets) in Shaarli (default:["ftp", "ftps", "magnet"]). 
Resources
- data_dir: Data directory.
 - datastore: Shaarli's links database file path.
 - history: Shaarli's operation history file path.
 - updates: File path for the ran updates file.
 - log: Log file path.
 - update_check: Last update check file path.
 - raintpl_tpl: Templates directory.
 - raintpl_tmp: Template engine cache directory.
 - thumbnails_cache: Thumbnails cache directory.
 - page_cache: Shaarli's internal cache directory.
 - ban_file: Banned IP file path.
 
Translation
- language: translation language (also see Translations)
- auto (default): The translation language is chosen from the browser locale. It means that the language can be different for 2 different visitors depending on their locale.
 - en: Use the English translation.
 - fr: Use the French translation.
 
 - mode: 
- auto or php (default): Use the PHP implementation of gettext (slower)
 - gettext: Use PHP builtin gettext extension 
(faster, but requires 
php-gettextto be installed and to reload the web server on update) 
 - extension: Translation extensions for custom themes or plugins. 
Must be an associative array: 
translation domain => translation path. 
Updates
- check_updates: Enable or disable update check to the git repository.
 - check_updates_branch: Git branch used to check updates (e.g. 
stableormaster). - check_updates_interval: Look for new version every N seconds (default: every day).
 
Privacy
- default_private_links: Check the private checkbox by default for every new link.
 - hide_public_links: All links are hidden while logged out.
 - force_login: if hide_public_links and this are set to 
true, all anonymous users are redirected to the login page. - hide_timestamps: Timestamps are hidden.
 - remember_user_default: Default state of the login page's remember me checkbox
true: checked by default,false: unchecked by default
 
Feed
- rss_permalinks: Enable this to redirect RSS links to Shaarli's permalinks instead of shaared URL.
 - show_atom: Display ATOM feed button.
 
Thumbnail
- enable_thumbnails: Enable or disable thumbnail display.
 - enable_localcache: Enable or disable local cache.
 
Redirector
- url: Redirector URL, such as 
anonym.to. - encode_url: Enable this if the redirector needs encoded URL to work properly.
 
Configuration file example
<?php /*
{
    "credentials": {
        "login": "<login>",
        "hash": "<password hash>",
        "salt": "<password salt>"
    },
    "security": {
        "ban_after": 4,
        "session_protection_disabled": false,
        "ban_duration": 1800,
        "trusted_proxies": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "allowed_protocols": [
            "ftp",
            "ftps",
            "magnet"
        ]
    },
    "resources": {
        "data_dir": "data",
        "config": "data\/config.php",
        "datastore": "data\/datastore.php",
        "ban_file": "data\/ipbans.php",
        "updates": "data\/updates.txt",
        "log": "data\/log.txt",
        "update_check": "data\/lastupdatecheck.txt",
        "raintpl_tmp": "tmp\/",
        "raintpl_tpl": "tpl\/",
        "thumbnails_cache": "cache",
        "page_cache": "pagecache"
    },
    "general": {
        "check_updates": true,
        "rss_permalinks": true,
        "links_per_page": 20,
        "default_private_links": true,
        "enable_thumbnails": true,
        "enable_localcache": true,
        "check_updates_branch": "stable",
        "check_updates_interval": 86400,
        "enabled_plugins": [
            "markdown",
            "wallabag",
            "archiveorg"
        ],
        "timezone": "Europe\/Paris",
        "title": "My Shaarli",
        "header_link": "?"
    },
    "extras": {
        "show_atom": false,
        "hide_public_links": false,
        "hide_timestamps": false,
        "open_shaarli": false,
        "redirector": "http://anonym.to/?",
        "redirector_encode_url": false
    },
    "general": {
        "header_link": "?",
        "links_per_page": 20,
        "enabled_plugins": [
            "markdown",
            "wallabag"
        ],
        "timezone": "Europe\/Paris",
        "title": "My Shaarli"
    },
    "updates": {
        "check_updates": true,
        "check_updates_branch": "stable",
        "check_updates_interval": 86400
    },
    "feed": {
        "rss_permalinks": true,
        "show_atom": false
    },
    "privacy": {
        "default_private_links": true,
        "hide_public_links": false,
        "force_login": false,
        "hide_timestamps": false,
        "remember_user_default": true
    },
    "thumbnail": {
        "enable_thumbnails": true,
        "enable_localcache": true
    },
    "redirector": {
        "url": "http://anonym.to/?",
        "encode_url": false
    },
    "plugins": {
        "WALLABAG_URL": "http://demo.wallabag.org",
        "WALLABAG_VERSION": "1"
    },
    "translation": {
        "language": "fr",
        "mode": "php",
        "extensions": {
            "demo": "plugins/demo_plugin/languages/"
        }
    }
} ?>
Additional configuration
The playvideos plugin may require that you adapt your server's 
Content Security Policy 
configuration to work properly.