mirror of
https://github.com/element-hq/synapse.git
synced 2024-12-21 12:14:29 +03:00
541 lines
43 KiB
HTML
541 lines
43 KiB
HTML
|
<!DOCTYPE HTML>
|
||
|
|
<html lang="en" class="sidebar-visible no-js light">
|
||
|
|
<head>
|
||
|
|
<!-- Book generated using mdBook -->
|
||
|
|
<meta charset="UTF-8">
|
||
|
|
<title>Spam checker callbacks - Synapse</title>
|
||
|
|
<!-- Custom HTML head -->
|
||
|
|
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
|
||
|
|
<meta name="description" content="">
|
||
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||
|
|
<meta name="theme-color" content="#ffffff" />
|
||
|
|
|
||
|
|
<link rel="icon" href="../favicon.svg">
|
||
|
|
<link rel="shortcut icon" href="../favicon.png">
|
||
|
|
<link rel="stylesheet" href="../css/variables.css">
|
||
|
|
<link rel="stylesheet" href="../css/general.css">
|
||
|
|
<link rel="stylesheet" href="../css/chrome.css">
|
||
|
|
<link rel="stylesheet" href="../css/print.css" media="print">
|
||
|
|
<!-- Fonts -->
|
||
|
|
<link rel="stylesheet" href="../FontAwesome/css/font-awesome.css">
|
||
|
|
<link rel="stylesheet" href="../fonts/fonts.css">
|
||
|
|
<!-- Highlight.js Stylesheets -->
|
||
|
|
<link rel="stylesheet" href="../highlight.css">
|
||
|
|
<link rel="stylesheet" href="../tomorrow-night.css">
|
||
|
|
<link rel="stylesheet" href="../ayu-highlight.css">
|
||
|
|
|
||
|
|
<!-- Custom theme stylesheets -->
|
||
|
|
<link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
|
||
|
|
<link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
|
||
|
|
<link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<!-- Provide site root to javascript -->
|
||
|
|
<script type="text/javascript">
|
||
|
|
var path_to_root = "../";
|
||
|
|
var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "navy" : "light";
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<!-- Work around some values being stored in localStorage wrapped in quotes -->
|
||
|
|
<script type="text/javascript">
|
||
|
|
try {
|
||
|
|
var theme = localStorage.getItem('mdbook-theme');
|
||
|
|
var sidebar = localStorage.getItem('mdbook-sidebar');
|
||
|
|
if (theme.startsWith('"') && theme.endsWith('"')) {
|
||
|
|
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
|
||
|
|
}
|
||
|
|
if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
|
||
|
|
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
|
||
|
|
}
|
||
|
|
} catch (e) { }
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<!-- Set the theme before any content is loaded, prevents flash -->
|
||
|
|
<script type="text/javascript">
|
||
|
|
var theme;
|
||
|
|
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
|
||
|
|
if (theme === null || theme === undefined) { theme = default_theme; }
|
||
|
|
var html = document.querySelector('html');
|
||
|
|
html.classList.remove('no-js')
|
||
|
|
html.classList.remove('light')
|
||
|
|
html.classList.add(theme);
|
||
|
|
html.classList.add('js');
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<!-- Hide / unhide sidebar before it is displayed -->
|
||
|
|
<script type="text/javascript">
|
||
|
|
var html = document.querySelector('html');
|
||
|
|
var sidebar = 'hidden';
|
||
|
|
if (document.body.clientWidth >= 1080) {
|
||
|
|
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
|
||
|
|
sidebar = sidebar || 'visible';
|
||
|
|
}
|
||
|
|
html.classList.remove('sidebar-visible');
|
||
|
|
html.classList.add("sidebar-" + sidebar);
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<nav id="sidebar" class="sidebar" aria-label="Table of contents">
|
||
|
|
<div class="sidebar-scrollbox">
|
||
|
|
<ol class="chapter"><li class="chapter-item expanded affix "><li class="part-title">Introduction</li><li class="chapter-item expanded "><a href="../welcome_and_overview.html">Welcome and Overview</a></li><li class="chapter-item expanded affix "><li class="part-title">Setup</li><li class="chapter-item expanded "><a href="../setup/installation.html">Installation</a></li><li class="chapter-item expanded "><a href="../postgres.html">Using Postgres</a></li><li class="chapter-item expanded "><a href="../reverse_proxy.html">Configuring a Reverse Proxy</a></li><li class="chapter-item expanded "><a href="../setup/forward_proxy.html">Configuring a Forward/Outbound Proxy</a></li><li class="chapter-item expanded "><a href="../turn-howto.html">Configuring a Turn Server</a></li><li class="chapter-item expanded "><a href="../delegate.html">Delegation</a></li><li class="chapter-item expanded affix "><li class="part-title">Upgrading</li><li class="chapter-item expanded "><a href="../upgrade.html">Upgrading between Synapse Versions</a></li><li class="chapter-item expanded affix "><li class="part-title">Usage</li><li class="chapter-item expanded "><a href="../federate.html">Federation</a></li><li class="chapter-item expanded "><a href="../usage/configuration/index.html">Configuration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../usage/configuration/config_documentation.html">Configuration Manual</a></li><li class="chapter-item expanded "><a href="../usage/configuration/homeserver_sample_config.html">Homeserver Sample Config File</a></li><li class="chapter-item expanded "><a href="../usage/configuration/logging_sample_config.html">Logging Sample Config File</a></li><li class="chapter-item expanded "><a href="../structured_logging.html">Structured Logging</a></li><li class="chapter-item expanded "><a href="../templates.html">Templates</a></li><li class="chapter-item expanded "><a href="../usage/configuration/user_authentication/index.html">User Authentication</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../usage/configuration/user_authentication/single_sign_on/index.html">Single-Sign On</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../openid.html">OpenID Connect</a></li><li class="chapter-item expanded "><a href="../usage/configuration/user_authentication/single_sign_on/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="../usage/configuration/user_authentication/single_sign_on/cas.html">CAS</a></li><li class="chapter-item expanded "><a href="../sso_mapping_providers.html">SSO Mapping Providers</a></li></ol></li><li class="chapter-item expanded "><a href="../password_auth_providers.html">Password Auth Providers</a></li><li class="chapter-item expanded "><a href="../jwt.html">JSON Web Tokens</a></li><li class="chapter-item expanded "><a href="../usage/configuration/user_authentication/refresh_tokens.html">Refresh Tokens</a></li></ol></li><li class="chapter-item expanded "><a href="../CAPTCHA_SETUP.html">Registration Captcha</a></li><li class="chapter-item expanded "><a href="../application_services.html">Application Services</a></li><li class="chapter-item expanded "><a href="../server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="../consent_tracking.html">Consent Tracking</a></li><li class="chapter-item expanded "><a href="../user_directory.html">User Directory</a></li><li class="chapter-item expanded "><a href="../message_retention_policies.html">Message Retention Policies</a></li><li class="chapter-item expanded "><a href="../modules/index.html">Pluggable Modules</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../modules/writing_a_module.html">Writing a module</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../modules/spam_checker_callbacks.html" class="active">Spam checker callbacks</a></li><li class="chapter-item expanded "><a href="../modules/third_party_rules_callbacks.html">Third-party rules callbacks</a></li><li class="
|
||
|
|
</div>
|
||
|
|
<div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
|
||
|
|
</nav>
|
||
|
|
|
||
|
|
<div id="page-wrapper" class="page-wrapper">
|
||
|
|
|
||
|
|
<div class="page">
|
||
|
|
<div id="menu-bar-hover-placeholder"></div>
|
||
|
|
<div id="menu-bar" class="menu-bar sticky bordered">
|
||
|
|
<div class="left-buttons">
|
||
|
|
<button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
|
||
|
|
<i class="fa fa-bars"></i>
|
||
|
|
</button>
|
||
|
|
<button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
|
||
|
|
<i class="fa fa-paint-brush"></i>
|
||
|
|
</button>
|
||
|
|
<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
|
||
|
|
<li role="none"><button role="menuitem" class="theme" id="light">Light (default)</button></li>
|
||
|
|
<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
|
||
|
|
<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
|
||
|
|
<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
|
||
|
|
<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
|
||
|
|
</ul>
|
||
|
|
<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
|
||
|
|
<i class="fa fa-search"></i>
|
||
|
|
</button>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h1 class="menu-title">Synapse</h1>
|
||
|
|
|
||
|
|
<div class="right-buttons">
|
||
|
|
<a href="../print.html" title="Print this book" aria-label="Print this book">
|
||
|
|
<i id="print-button" class="fa fa-print"></i>
|
||
|
|
</a>
|
||
|
|
<a href="https://github.com/matrix-org/synapse" title="Git repository" aria-label="Git repository">
|
||
|
|
<i id="git-repository-button" class="fa fa-github"></i>
|
||
|
|
</a>
|
||
|
|
<a href="https://github.com/matrix-org/synapse/edit/develop/docs/modules/spam_checker_callbacks.md" title="Suggest an edit" aria-label="Suggest an edit">
|
||
|
|
<i id="git-edit-button" class="fa fa-edit"></i>
|
||
|
|
</a>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div id="search-wrapper" class="hidden">
|
||
|
|
<form id="searchbar-outer" class="searchbar-outer">
|
||
|
|
<input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
|
||
|
|
</form>
|
||
|
|
<div id="searchresults-outer" class="searchresults-outer hidden">
|
||
|
|
<div id="searchresults-header" class="searchresults-header"></div>
|
||
|
|
<ul id="searchresults">
|
||
|
|
</ul>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
|
||
|
|
<script type="text/javascript">
|
||
|
|
document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
|
||
|
|
document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
|
||
|
|
Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
|
||
|
|
link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
|
||
|
|
});
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<div id="content" class="content">
|
||
|
|
<main>
|
||
|
|
<!-- Page table of contents -->
|
||
|
|
<div class="sidetoc">
|
||
|
|
<nav class="pagetoc"></nav>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h1 id="spam-checker-callbacks"><a class="header" href="#spam-checker-callbacks">Spam checker callbacks</a></h1>
|
||
|
|
<p>Spam checker callbacks allow module developers to implement spam mitigation actions for
|
||
|
|
Synapse instances. Spam checker callbacks can be registered using the module API's
|
||
|
|
<code>register_spam_checker_callbacks</code> method.</p>
|
||
|
|
<h2 id="callbacks"><a class="header" href="#callbacks">Callbacks</a></h2>
|
||
|
|
<p>The available spam checker callbacks are:</p>
|
||
|
|
<h3 id="check_event_for_spam"><a class="header" href="#check_event_for_spam"><code>check_event_for_spam</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.60.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean or a string is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def check_event_for_spam(event: "synapse.module_api.EventBase") -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", str, bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when receiving an event from a client or via federation. The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</li>
|
||
|
|
<li><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</li>
|
||
|
|
<li>(deprecated) a non-<code>Codes</code> <code>str</code> to reject the operation and specify an error message. Note that clients
|
||
|
|
typically will not localize the error message to the user's preferred locale.</li>
|
||
|
|
<li>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</li>
|
||
|
|
<li>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="user_may_join_room"><a class="header" href="#user_may_join_room"><code>user_may_join_room</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.61.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def user_may_join_room(user: str, room: str, is_invited: bool) -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when a user is trying to join a room. The user is represented by their Matrix user ID (e.g.
|
||
|
|
<code>@alice:example.com</code>) and the room is represented by its Matrix ID (e.g.
|
||
|
|
<code>!room:example.com</code>). The module is also given a boolean to indicate whether the user
|
||
|
|
currently has a pending invite in the room.</p>
|
||
|
|
<p>This callback isn't called if the join is performed by a server administrator, or in the
|
||
|
|
context of a room creation.</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</li>
|
||
|
|
<li><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</li>
|
||
|
|
<li>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</li>
|
||
|
|
<li>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="user_may_invite"><a class="header" href="#user_may_invite"><code>user_may_invite</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.62.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def user_may_invite(inviter: str, invitee: str, room_id: str) -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when processing an invitation. Both inviter and invitee are
|
||
|
|
represented by their Matrix user ID (e.g. <code>@alice:example.com</code>).</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="user_may_send_3pid_invite"><a class="header" href="#user_may_send_3pid_invite"><code>user_may_send_3pid_invite</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.45.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.62.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def user_may_send_3pid_invite(
|
||
|
|
inviter: str,
|
||
|
|
medium: str,
|
||
|
|
address: str,
|
||
|
|
room_id: str,
|
||
|
|
) -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when processing an invitation using a third-party identifier (also called a 3PID,
|
||
|
|
e.g. an email address or a phone number). </p>
|
||
|
|
<p>The inviter is represented by their Matrix user ID (e.g. <code>@alice:example.com</code>), and the
|
||
|
|
invitee is represented by its medium (e.g. "email") and its address
|
||
|
|
(e.g. <code>alice@example.com</code>). See <a href="https://matrix.org/docs/spec/appendices#pid-types">the Matrix specification</a>
|
||
|
|
for more information regarding third-party identifiers.</p>
|
||
|
|
<p>For example, a call to this callback to send an invitation to the email address
|
||
|
|
<code>alice@example.com</code> would look like this:</p>
|
||
|
|
<pre><code class="language-python">await user_may_send_3pid_invite(
|
||
|
|
"@bob:example.com", # The inviter's user ID
|
||
|
|
"email", # The medium of the 3PID to invite
|
||
|
|
"alice@example.com", # The address of the 3PID to invite
|
||
|
|
"!some_room:example.com", # The ID of the room to send the invite into
|
||
|
|
)
|
||
|
|
</code></pre>
|
||
|
|
<p><strong>Note</strong>: If the third-party identifier is already associated with a matrix user ID,
|
||
|
|
<a href="#user_may_invite"><code>user_may_invite</code></a> will be used instead.</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="user_may_create_room"><a class="header" href="#user_may_create_room"><code>user_may_create_room</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.62.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def user_may_create_room(user_id: str) -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when processing a room creation request.</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="user_may_create_room_alias"><a class="header" href="#user_may_create_room_alias"><code>user_may_create_room_alias</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.62.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def user_may_create_room_alias(user_id: str, room_alias: "synapse.module_api.RoomAlias") -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when trying to associate an alias with an existing room.</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="user_may_publish_room"><a class="header" href="#user_may_publish_room"><code>user_may_publish_room</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.62.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def user_may_publish_room(user_id: str, room_id: str) -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when trying to publish a room to the homeserver's public rooms directory.</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="check_username_for_spam"><a class="header" href="#check_username_for_spam"><code>check_username_for_spam</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<pre><code class="language-python">async def check_username_for_spam(user_profile: synapse.module_api.UserProfile) -> bool
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when computing search results in the user directory. The module must return a
|
||
|
|
<code>bool</code> indicating whether the given user should be excluded from user directory
|
||
|
|
searches. Return <code>True</code> to indicate that the user is spammy and exclude them from
|
||
|
|
search results; otherwise return <code>False</code>.</p>
|
||
|
|
<p>The profile is represented as a dictionary with the following keys:</p>
|
||
|
|
<ul>
|
||
|
|
<li><code>user_id: str</code>. The Matrix ID for this user.</li>
|
||
|
|
<li><code>display_name: Optional[str]</code>. The user's display name, or <code>None</code> if this user
|
||
|
|
has not set a display name.</li>
|
||
|
|
<li><code>avatar_url: Optional[str]</code>. The <code>mxc://</code> URL to the user's avatar, or <code>None</code>
|
||
|
|
if this user has not set an avatar.</li>
|
||
|
|
</ul>
|
||
|
|
<p>The module is given a copy of the original dictionary, so modifying it from within the
|
||
|
|
module cannot modify a user's profile when included in user directory search results.</p>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>False</code>, Synapse falls through to the next one. The value of the first
|
||
|
|
callback that does not return <code>False</code> will be used. If this happens, Synapse will not call
|
||
|
|
any of the subsequent implementations of this callback.</p>
|
||
|
|
<h3 id="check_registration_for_spam"><a class="header" href="#check_registration_for_spam"><code>check_registration_for_spam</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<pre><code class="language-python">async def check_registration_for_spam(
|
||
|
|
email_threepid: Optional[dict],
|
||
|
|
username: Optional[str],
|
||
|
|
request_info: Collection[Tuple[str, str]],
|
||
|
|
auth_provider_id: Optional[str] = None,
|
||
|
|
) -> "synapse.spam_checker_api.RegistrationBehaviour"
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when registering a new user. The module must return a <code>RegistrationBehaviour</code>
|
||
|
|
indicating whether the registration can go through or must be denied, or whether the user
|
||
|
|
may be allowed to register but will be shadow banned.</p>
|
||
|
|
<p>The arguments passed to this callback are:</p>
|
||
|
|
<ul>
|
||
|
|
<li><code>email_threepid</code>: The email address used for registering, if any.</li>
|
||
|
|
<li><code>username</code>: The username the user would like to register. Can be <code>None</code>, meaning that
|
||
|
|
Synapse will generate one later.</li>
|
||
|
|
<li><code>request_info</code>: A collection of tuples, which first item is a user agent, and which
|
||
|
|
second item is an IP address. These user agents and IP addresses are the ones that were
|
||
|
|
used during the registration process.</li>
|
||
|
|
<li><code>auth_provider_id</code>: The identifier of the SSO authentication provider, if any.</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>RegistrationBehaviour.ALLOW</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>RegistrationBehaviour.ALLOW</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="check_media_file_for_spam"><a class="header" href="#check_media_file_for_spam"><code>check_media_file_for_spam</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.37.0</em></p>
|
||
|
|
<p><em>Changed in Synapse v1.62.0: <code>synapse.module_api.NOT_SPAM</code> and <code>synapse.module_api.errors.Codes</code> can be returned by this callback. Returning a boolean is now deprecated.</em> </p>
|
||
|
|
<pre><code class="language-python">async def check_media_file_for_spam(
|
||
|
|
file_wrapper: "synapse.rest.media.v1.media_storage.ReadableFileWrapper",
|
||
|
|
file_info: "synapse.rest.media.v1._base.FileInfo",
|
||
|
|
) -> Union["synapse.module_api.NOT_SPAM", "synapse.module_api.errors.Codes", bool]
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when storing a local or remote file.</p>
|
||
|
|
<p>The callback must return one of:</p>
|
||
|
|
<ul>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.NOT_SPAM</code>, to allow the operation. Other callbacks may still
|
||
|
|
decide to reject it.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p><code>synapse.module_api.errors.Codes</code> to reject the operation with an error code. In case
|
||
|
|
of doubt, <code>synapse.module_api.errors.Codes.FORBIDDEN</code> is a good error code.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>False</code>, which is the same as returning <code>synapse.module_api.NOT_SPAM</code>.</p>
|
||
|
|
</li>
|
||
|
|
<li>
|
||
|
|
<p>(deprecated) <code>True</code>, which is the same as returning <code>synapse.module_api.errors.Codes.FORBIDDEN</code>.</p>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>synapse.module_api.NOT_SPAM</code>, Synapse falls through to the next one.
|
||
|
|
The value of the first callback that does not return <code>synapse.module_api.NOT_SPAM</code> will
|
||
|
|
be used. If this happens, Synapse will not call any of the subsequent implementations of
|
||
|
|
this callback.</p>
|
||
|
|
<h3 id="should_drop_federated_event"><a class="header" href="#should_drop_federated_event"><code>should_drop_federated_event</code></a></h3>
|
||
|
|
<p><em>First introduced in Synapse v1.60.0</em></p>
|
||
|
|
<pre><code class="language-python">async def should_drop_federated_event(event: "synapse.events.EventBase") -> bool
|
||
|
|
</code></pre>
|
||
|
|
<p>Called when checking whether a remote server can federate an event with us. <strong>Returning
|
||
|
|
<code>True</code> from this function will silently drop a federated event and split-brain our view
|
||
|
|
of a room's DAG, and thus you shouldn't use this callback unless you know what you are
|
||
|
|
doing.</strong></p>
|
||
|
|
<p>If multiple modules implement this callback, they will be considered in order. If a
|
||
|
|
callback returns <code>False</code>, Synapse falls through to the next one. The value of the first
|
||
|
|
callback that does not return <code>False</code> will be used. If this happens, Synapse will not call
|
||
|
|
any of the subsequent implementations of this callback.</p>
|
||
|
|
<h2 id="example"><a class="header" href="#example">Example</a></h2>
|
||
|
|
<p>The example below is a module that implements the spam checker callback
|
||
|
|
<code>check_event_for_spam</code> to deny any message sent by users whose Matrix user IDs are
|
||
|
|
mentioned in a configured list, and registers a web resource to the path
|
||
|
|
<code>/_synapse/client/list_spam_checker/is_evil</code> that returns a JSON object indicating
|
||
|
|
whether the provided user appears in that list.</p>
|
||
|
|
<pre><code class="language-python">import json
|
||
|
|
from typing import Union
|
||
|
|
|
||
|
|
from twisted.web.resource import Resource
|
||
|
|
from twisted.web.server import Request
|
||
|
|
|
||
|
|
from synapse.module_api import ModuleApi
|
||
|
|
|
||
|
|
|
||
|
|
class IsUserEvilResource(Resource):
|
||
|
|
def __init__(self, config):
|
||
|
|
super(IsUserEvilResource, self).__init__()
|
||
|
|
self.evil_users = config.get("evil_users") or []
|
||
|
|
|
||
|
|
def render_GET(self, request: Request):
|
||
|
|
user = request.args.get(b"user")[0].decode()
|
||
|
|
request.setHeader(b"Content-Type", b"application/json")
|
||
|
|
return json.dumps({"evil": user in self.evil_users}).encode()
|
||
|
|
|
||
|
|
|
||
|
|
class ListSpamChecker:
|
||
|
|
def __init__(self, config: dict, api: ModuleApi):
|
||
|
|
self.api = api
|
||
|
|
self.evil_users = config.get("evil_users") or []
|
||
|
|
|
||
|
|
self.api.register_spam_checker_callbacks(
|
||
|
|
check_event_for_spam=self.check_event_for_spam,
|
||
|
|
)
|
||
|
|
|
||
|
|
self.api.register_web_resource(
|
||
|
|
path="/_synapse/client/list_spam_checker/is_evil",
|
||
|
|
resource=IsUserEvilResource(config),
|
||
|
|
)
|
||
|
|
|
||
|
|
async def check_event_for_spam(self, event: "synapse.events.EventBase") -> Union[Literal["NOT_SPAM"], Codes]:
|
||
|
|
if event.sender in self.evil_users:
|
||
|
|
return Codes.FORBIDDEN
|
||
|
|
else:
|
||
|
|
return synapse.module_api.NOT_SPAM
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
</main>
|
||
|
|
|
||
|
|
<nav class="nav-wrapper" aria-label="Page navigation">
|
||
|
|
<!-- Mobile navigation buttons -->
|
||
|
|
<a rel="prev" href="../modules/writing_a_module.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
||
|
|
<i class="fa fa-angle-left"></i>
|
||
|
|
</a>
|
||
|
|
<a rel="next" href="../modules/third_party_rules_callbacks.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
|
||
|
|
<i class="fa fa-angle-right"></i>
|
||
|
|
</a>
|
||
|
|
<div style="clear: both"></div>
|
||
|
|
</nav>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<nav class="nav-wide-wrapper" aria-label="Page navigation">
|
||
|
|
<a rel="prev" href="../modules/writing_a_module.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
||
|
|
<i class="fa fa-angle-left"></i>
|
||
|
|
</a>
|
||
|
|
<a rel="next" href="../modules/third_party_rules_callbacks.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
|
||
|
|
<i class="fa fa-angle-right"></i>
|
||
|
|
</a>
|
||
|
|
</nav>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<script type="text/javascript">
|
||
|
|
window.playground_copyable = true;
|
||
|
|
</script>
|
||
|
|
<script src="../elasticlunr.min.js" type="text/javascript" charset="utf-8"></script>
|
||
|
|
<script src="../mark.min.js" type="text/javascript" charset="utf-8"></script>
|
||
|
|
<script src="../searcher.js" type="text/javascript" charset="utf-8"></script>
|
||
|
|
<script src="../clipboard.min.js" type="text/javascript" charset="utf-8"></script>
|
||
|
|
<script src="../highlight.js" type="text/javascript" charset="utf-8"></script>
|
||
|
|
<script src="../book.js" type="text/javascript" charset="utf-8"></script>
|
||
|
|
|
||
|
|
<!-- Custom JS scripts -->
|
||
|
|
<script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
|
||
|
|
</body>
|
||
|
|
</html>
|