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<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">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="chapter-item ex
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<h1 id="account-validity-callbacks"><a class="header" href="#account-validity-callbacks">Account validity callbacks</a></h1>
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<p>Account validity callbacks allow module developers to add extra steps to verify the
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validity on an account, i.e. see if a user can be granted access to their account on the
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Synapse instance. Account validity callbacks can be registered using the module API's
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<code>register_account_validity_callbacks</code> method.</p>
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<p>The available account validity callbacks are:</p>
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<h3 id="is_user_expired"><a class="header" href="#is_user_expired"><code>is_user_expired</code></a></h3>
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<p><em>First introduced in Synapse v1.39.0</em></p>
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<pre><code class="language-python">async def is_user_expired(user: str) -> Optional[bool]
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</code></pre>
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<p>Called when processing any authenticated request (except for logout requests). The module
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can return a <code>bool</code> to indicate whether the user has expired and should be locked out of
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their account, or <code>None</code> if the module wasn't able to figure it out. The user is
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represented by their Matrix user ID (e.g. <code>@alice:example.com</code>).</p>
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<p>If the module returns <code>True</code>, the current request will be denied with the error code
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<code>ORG_MATRIX_EXPIRED_ACCOUNT</code> and the HTTP status code 403. Note that this doesn't
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invalidate the user's access token.</p>
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<p>If multiple modules implement this callback, they will be considered in order. If a
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callback returns <code>None</code>, Synapse falls through to the next one. The value of the first
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callback that does not return <code>None</code> will be used. If this happens, Synapse will not call
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any of the subsequent implementations of this callback.</p>
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<h3 id="on_user_registration"><a class="header" href="#on_user_registration"><code>on_user_registration</code></a></h3>
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<p><em>First introduced in Synapse v1.39.0</em></p>
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<pre><code class="language-python">async def on_user_registration(user: str) -> None
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</code></pre>
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<p>Called after successfully registering a user, in case the module needs to perform extra
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operations to keep track of them. (e.g. add them to a database table). The user is
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represented by their Matrix user ID.</p>
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<p>If multiple modules implement this callback, Synapse runs them all in order.</p>
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