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diff --git a/v1.43/modules/spam_checker_callbacks.html b/v1.43/modules/spam_checker_callbacks.html new file mode 100644 index 0000000000..c882ec89be --- /dev/null +++ b/v1.43/modules/spam_checker_callbacks.html @@ -0,0 +1,376 @@ +<!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 ? 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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> +<pre><code class="language-python">async def check_event_for_spam(event: "synapse.events.EventBase") -> Union[bool, str] +</code></pre> +<p>Called when receiving an event from a client or via federation. The module can return +either a <code>bool</code> to indicate whether the event must be rejected because of spam, or a <code>str</code> +to indicate the event must be rejected because of spam and to give a rejection reason to +forward to clients.</p> +<h3 id="user_may_invite"><a class="header" href="#user_may_invite"><code>user_may_invite</code></a></h3> +<pre><code class="language-python">async def user_may_invite(inviter: str, invitee: str, room_id: str) -> bool +</code></pre> +<p>Called when processing an invitation. The module must return a <code>bool</code> indicating whether +the inviter can invite the invitee to the given room. Both inviter and invitee are +represented by their Matrix user ID (e.g. <code>@alice:example.com</code>).</p> +<h3 id="user_may_create_room"><a class="header" href="#user_may_create_room"><code>user_may_create_room</code></a></h3> +<pre><code class="language-python">async def user_may_create_room(user: str) -> bool +</code></pre> +<p>Called when processing a room creation request. The module must return a <code>bool</code> indicating +whether the given user (represented by their Matrix user ID) is allowed to create a room.</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> +<pre><code class="language-python">async def user_may_create_room_alias(user: str, room_alias: "synapse.types.RoomAlias") -> bool +</code></pre> +<p>Called when trying to associate an alias with an existing room. The module must return a +<code>bool</code> indicating whether the given user (represented by their Matrix user ID) is allowed +to set the given alias.</p> +<h3 id="user_may_publish_room"><a class="header" href="#user_may_publish_room"><code>user_may_publish_room</code></a></h3> +<pre><code class="language-python">async def user_may_publish_room(user: str, room_id: str) -> bool +</code></pre> +<p>Called when trying to publish a room to the homeserver's public rooms directory. The +module must return a <code>bool</code> indicating whether the given user (represented by their +Matrix user ID) is allowed to publish the given room.</p> +<h3 id="check_username_for_spam"><a class="header" href="#check_username_for_spam"><code>check_username_for_spam</code></a></h3> +<pre><code class="language-python">async def check_username_for_spam(user_profile: Dict[str, str]) -> 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 profile can appear in search results. The profile +is represented as a dictionary with the following keys:</p> +<ul> +<li><code>user_id</code>: The Matrix ID for this user.</li> +<li><code>display_name</code>: The user's display name.</li> +<li><code>avatar_url</code>: The <code>mxc://</code> URL to the user's 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> +<h3 id="check_registration_for_spam"><a class="header" href="#check_registration_for_spam"><code>check_registration_for_spam</code></a></h3> +<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> +<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> +<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", +) -> bool +</code></pre> +<p>Called when storing a local or remote file. The module must return a boolean indicating +whether the given file can be stored in the homeserver's media store.</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] + request.setHeader(b"Content-Type", b"application/json") + return json.dumps({"evil": user in self.evil_users}) + + +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[bool, str]: + return event.sender not in self.evil_users +</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> \ No newline at end of file |