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-rw-r--r--v1.92/usage/configuration/user_authentication/single_sign_on/cas.html195
-rw-r--r--v1.92/usage/configuration/user_authentication/single_sign_on/index.html193
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@@ -0,0 +1,202 @@
+<!DOCTYPE HTML>
+<html lang="en" class="sidebar-visible no-js light">
+    <head>
+        <!-- Book generated using mdBook -->
+        <meta charset="UTF-8">
+        <title>User Authentication - 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 -->
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+        <link rel="stylesheet" href="../../../tomorrow-night.css">
+        <link rel="stylesheet" href="../../../ayu-highlight.css">
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+        <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><ol class="section"><li class="chapter-item expanded "><a href="../../../setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item expanded "><a href="../../../setup/turn/eturnal.html">eturnal TURN server</a></li></ol></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" class="active">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 expanded "><a href="../../../modules/presence_router_callbacks.html">Presence router callbacks</a></li><li class="chapter-item expanded "><a href="../../../modules/account_validity_callbacks.html">Account validity callbacks</a></li><li class="chapter-item expanded "><a href="../../../modules/password_auth_provider_callbacks.html">Password auth provider callbacks</a></li><li class="chapter-item expanded "><a href="../../../modules/background_update_controller_callbacks.html">Background update controller callbacks</a></li><li class="chapter-item expanded "><a href="../../../modules/account_data_callbacks.html">Account data callbacks</a></li><li class="chapter-item expanded "><a href="../../../modules/porting_legacy_module.html">Porting a legacy module to the new interface</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="../../../workers.html">Workers</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../synctl_workers.html">Using synctl with Workers</a></li><li class="chapter-item expanded "><a href="../../../systemd-with-workers/index.html">Systemd</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="../../../usage/administration/index.html">Administration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../usage/administration/admin_api/index.html">Admin API</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../admin_api/account_validity.html">Account Validity</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/admin_api/background_updates.html">Background Updates</a></li><li class="chapter-item expanded "><a href="../../../admin_api/event_reports.html">Event Reports</a></li><li class="chapter-item expanded "><a href="../../../admin_api/experimental_features.html">Experimental Features</a></li><li class="chapter-item expanded "><a href="../../../admin_api/media_admin_api.html">Media</a></li><li class="chapter-item expanded "><a href="../../../admin_api/purge_history_api.html">Purge History</a></li><li class="chapter-item expanded "><a href="../../../admin_api/register_api.html">Register Users</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/admin_api/registration_tokens.html">Registration Tokens</a></li><li class="chapter-item expanded "><a href="../../../admin_api/room_membership.html">Manipulate Room Membership</a></li><li class="chapter-item expanded "><a href="../../../admin_api/rooms.html">Rooms</a></li><li class="chapter-item expanded "><a href="../../../admin_api/server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="../../../admin_api/statistics.html">Statistics</a></li><li class="chapter-item expanded "><a href="../../../admin_api/user_admin_api.html">Users</a></li><li class="chapter-item expanded "><a href="../../../admin_api/version_api.html">Server Version</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/admin_api/federation.html">Federation</a></li></ol></li><li class="chapter-item expanded "><a href="../../../manhole.html">Manhole</a></li><li class="chapter-item expanded "><a href="../../../metrics-howto.html">Monitoring</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../usage/administration/monitoring/reporting_homeserver_usage_statistics.html">Reporting Homeserver Usage Statistics</a></li></ol></li><li class="chapter-item expanded "><a href="../../../usage/administration/monthly_active_users.html">Monthly Active Users</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/understanding_synapse_through_grafana_graphs.html">Understanding Synapse Through Grafana Graphs</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/useful_sql_for_admins.html">Useful SQL for Admins</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/database_maintenance_tools.html">Database Maintenance Tools</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/state_groups.html">State Groups</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/request_log.html">Request log format</a></li><li class="chapter-item expanded "><a href="../../../usage/administration/admin_faq.html">Admin FAQ</a></li><li class="chapter-item expanded "><div>Scripts</div></li></ol></li><li class="chapter-item expanded "><li class="part-title">Development</li><li class="chapter-item expanded "><a href="../../../development/contributing_guide.html">Contributing Guide</a></li><li class="chapter-item expanded "><a href="../../../code_style.html">Code Style</a></li><li class="chapter-item expanded "><a href="../../../development/reviews.html">Reviewing Code</a></li><li class="chapter-item expanded "><a href="../../../development/releases.html">Release Cycle</a></li><li class="chapter-item expanded "><a href="../../../development/git.html">Git Usage</a></li><li class="chapter-item expanded "><div>Testing</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../development/demo.html">Demo scripts</a></li></ol></li><li class="chapter-item expanded "><a href="../../../opentracing.html">OpenTracing</a></li><li class="chapter-item expanded "><a href="../../../development/database_schema.html">Database Schemas</a></li><li class="chapter-item expanded "><a href="../../../development/experimental_features.html">Experimental features</a></li><li class="chapter-item expanded "><a href="../../../development/dependencies.html">Dependency management</a></li><li class="chapter-item expanded "><div>Synapse Architecture</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../development/synapse_architecture/cancellation.html">Cancellation</a></li><li class="chapter-item expanded "><a href="../../../log_contexts.html">Log Contexts</a></li><li class="chapter-item expanded "><a href="../../../replication.html">Replication</a></li><li class="chapter-item expanded "><a href="../../../development/synapse_architecture/streams.html">Streams</a></li><li class="chapter-item expanded "><a href="../../../tcp_replication.html">TCP Replication</a></li><li class="chapter-item expanded "><a href="../../../development/synapse_architecture/faster_joins.html">Faster remote joins</a></li></ol></li><li class="chapter-item expanded "><a href="../../../development/internal_documentation/index.html">Internal Documentation</a></li><li><ol class="section"><li class="chapter-item expanded "><div>Single Sign-On</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../development/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="../../../development/cas.html">CAS</a></li></ol></li><li class="chapter-item expanded "><a href="../../../development/room-dag-concepts.html">Room DAG concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="../../../media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="../../../room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="../../../deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="../../../other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol>
+            </div>
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+
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+
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+                    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="user-authentication"><a class="header" href="#user-authentication">User Authentication</a></h1>
+<p>Synapse supports multiple methods of authenticating users, either out-of-the-box or through custom pluggable
+authentication modules.</p>
+<p>Included in Synapse is support for authenticating users via:</p>
+<ul>
+<li>A username and password.</li>
+<li>An email address and password.</li>
+<li>Single Sign-On through the SAML, Open ID Connect or CAS protocols.</li>
+<li>JSON Web Tokens.</li>
+<li>An administrator's shared secret.</li>
+</ul>
+<p>Synapse can additionally be extended to support custom authentication schemes through optional &quot;password auth provider&quot;
+modules.</p>
+
+                    </main>
+
+                    <nav class="nav-wrapper" aria-label="Page navigation">
+                        <!-- Mobile navigation buttons -->
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+
+        <!-- Custom JS scripts -->
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+    </body>
+</html>
\ No newline at end of file
diff --git a/v1.92/usage/configuration/user_authentication/refresh_tokens.html b/v1.92/usage/configuration/user_authentication/refresh_tokens.html
new file mode 100644
index 0000000000..21be35e3fa
--- /dev/null
+++ b/v1.92/usage/configuration/user_authentication/refresh_tokens.html
@@ -0,0 +1,311 @@
+<!DOCTYPE HTML>
+<html lang="en" class="sidebar-visible no-js light">
+    <head>
+        <!-- Book generated using mdBook -->
+        <meta charset="UTF-8">
+        <title>Refresh Tokens - 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';
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+                        <h1 id="refresh-tokens"><a class="header" href="#refresh-tokens">Refresh Tokens</a></h1>
+<p>Synapse supports refresh tokens since version 1.49 (some earlier versions had support for an earlier, experimental draft of <a href="https://github.com/matrix-org/matrix-doc/blob/main/proposals/2918-refreshtokens.md#msc2918-refresh-tokens">MSC2918</a> which is not compatible).</p>
+<h2 id="background-and-motivation"><a class="header" href="#background-and-motivation">Background and motivation</a></h2>
+<p>Synapse users' sessions are identified by <strong>access tokens</strong>; access tokens are
+issued to users on login. Each session gets a unique access token which identifies
+it; the access token must be kept secret as it grants access to the user's account.</p>
+<p>Traditionally, these access tokens were eternally valid (at least until the user
+explicitly chose to log out).</p>
+<p>In some cases, it may be desirable for these access tokens to expire so that the
+potential damage caused by leaking an access token is reduced.
+On the other hand, forcing a user to re-authenticate (log in again) often might
+be too much of an inconvenience.</p>
+<p><strong>Refresh tokens</strong> are a mechanism to avoid some of this inconvenience whilst
+still getting most of the benefits of short access token lifetimes.
+Refresh tokens are also a concept present in OAuth 2 — further reading is available
+<a href="https://datatracker.ietf.org/doc/html/rfc6749#section-1.5">here</a>.</p>
+<p>When refresh tokens are in use, both an access token and a refresh token will be
+issued to users on login. The access token will expire after a predetermined amount
+of time, but otherwise works in the same way as before. When the access token is
+close to expiring (or has expired), the user's client should present the homeserver
+(Synapse) with the refresh token.</p>
+<p>The homeserver will then generate a new access token and refresh token for the user
+and return them. The old refresh token is invalidated and can not be used again*.</p>
+<p>Finally, refresh tokens also make it possible for sessions to be logged out if they
+are inactive for too long, before the session naturally ends; see the configuration
+guide below.</p>
+<p>*To prevent issues if clients lose connection half-way through refreshing a token,
+the refresh token is only invalidated once the new access token has been used at
+least once. For all intents and purposes, the above simplification is sufficient.</p>
+<h2 id="caveats"><a class="header" href="#caveats">Caveats</a></h2>
+<p>There are some caveats:</p>
+<ul>
+<li>If a third party gets both your access token and refresh token, they will be able to
+continue to enjoy access to your session.
+<ul>
+<li>This is still an improvement because you (the user) will notice when <em>your</em>
+session expires and you're not able to use your refresh token.
+That would be a giveaway that someone else has compromised your session.
+You would be able to log in again and terminate that session.
+Previously (with long-lived access tokens), a third party that has your access
+token could go undetected for a very long time.</li>
+</ul>
+</li>
+<li>Clients need to implement support for refresh tokens in order for them to be a
+useful mechanism.
+<ul>
+<li>It is up to homeserver administrators if they want to issue long-lived access
+tokens to clients not implementing refresh tokens.
+<ul>
+<li>For compatibility, it is likely that they should, at least until client support
+is widespread.
+<ul>
+<li>Users with clients that support refresh tokens will still benefit from the
+added security; it's not possible to downgrade a session to using long-lived
+access tokens so this effectively gives users the choice.</li>
+</ul>
+</li>
+<li>In a closed environment where all users use known clients, this may not be
+an issue as the homeserver administrator can know if the clients have refresh
+token support. In that case, the non-refreshable access token lifetime
+may be set to a short duration so that a similar level of security is provided.</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+<h2 id="configuration-guide"><a class="header" href="#configuration-guide">Configuration Guide</a></h2>
+<p>The following configuration options, in the <code>registration</code> section, are related:</p>
+<ul>
+<li><code>session_lifetime</code>: maximum length of a session, even if it's refreshed.
+In other words, the client must log in again after this time period.
+In most cases, this can be unset (infinite) or set to a long time (years or months).</li>
+<li><code>refreshable_access_token_lifetime</code>: lifetime of access tokens that are created
+by clients supporting refresh tokens.
+This should be short; a good value might be 5 minutes (<code>5m</code>).</li>
+<li><code>nonrefreshable_access_token_lifetime</code>: lifetime of access tokens that are created
+by clients which don't support refresh tokens.
+Make this short if you want to effectively force use of refresh tokens.
+Make this long if you don't want to inconvenience users of clients which don't
+support refresh tokens (by forcing them to frequently re-authenticate using
+login credentials).</li>
+<li><code>refresh_token_lifetime</code>: lifetime of refresh tokens.
+In other words, the client must refresh within this time period to maintain its session.
+Unless you want to log inactive sessions out, it is often fine to use a long
+value here or even leave it unset (infinite).
+Beware that making it too short will inconvenience clients that do not connect
+very often, including mobile clients and clients of infrequent users (by making
+it more difficult for them to refresh in time, which may force them to need to
+re-authenticate using login credentials).</li>
+</ul>
+<p><strong>Note:</strong> All four options above only apply when tokens are created (by logging in or refreshing).
+Changes to these settings do not apply retroactively.</p>
+<h3 id="using-refresh-token-expiry-to-log-out-inactive-sessions"><a class="header" href="#using-refresh-token-expiry-to-log-out-inactive-sessions">Using refresh token expiry to log out inactive sessions</a></h3>
+<p>If you'd like to force sessions to be logged out upon inactivity, you can enable
+refreshable access token expiry and refresh token expiry.</p>
+<p>This works because a client must refresh at least once within a period of
+<code>refresh_token_lifetime</code> in order to maintain valid credentials to access the
+account.</p>
+<p>(It's suggested that <code>refresh_token_lifetime</code> should be longer than
+<code>refreshable_access_token_lifetime</code> and this section assumes that to be the case
+for simplicity.)</p>
+<p>Note: this will only affect sessions using refresh tokens. You may wish to
+set a short <code>nonrefreshable_access_token_lifetime</code> to prevent this being bypassed
+by clients that do not support refresh tokens.</p>
+<h4 id="choosing-values-that-guarantee-permitting-some-inactivity"><a class="header" href="#choosing-values-that-guarantee-permitting-some-inactivity">Choosing values that guarantee permitting some inactivity</a></h4>
+<p>It may be desirable to permit some short periods of inactivity, for example to
+accommodate brief outages in client connectivity.</p>
+<p>The following model aims to provide guidance for choosing <code>refresh_token_lifetime</code>
+and <code>refreshable_access_token_lifetime</code> to satisfy requirements of the form:</p>
+<ol>
+<li>inactivity longer than <code>L</code> <strong>MUST</strong> cause the session to be logged out; and</li>
+<li>inactivity shorter than <code>S</code> <strong>MUST NOT</strong> cause the session to be logged out.</li>
+</ol>
+<p>This model makes the weakest assumption that all active clients will refresh as
+needed to maintain an active access token, but no sooner.
+<em>In reality, clients may refresh more often than this model assumes, but the
+above requirements will still hold.</em></p>
+<p>To satisfy the above model,</p>
+<ul>
+<li><code>refresh_token_lifetime</code> should be set to <code>L</code>; and</li>
+<li><code>refreshable_access_token_lifetime</code> should be set to <code>L - S</code>.</li>
+</ul>
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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><ol class="section"><li class="chapter-item expanded "><a href="../../../../setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item 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class="active">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 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href="../../../../usage/administration/index.html">Administration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../../usage/administration/admin_api/index.html">Admin API</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../../admin_api/account_validity.html">Account Validity</a></li><li class="chapter-item expanded "><a href="../../../../usage/administration/admin_api/background_updates.html">Background Updates</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/event_reports.html">Event Reports</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/experimental_features.html">Experimental Features</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/media_admin_api.html">Media</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/purge_history_api.html">Purge History</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/register_api.html">Register Users</a></li><li class="chapter-item expanded "><a href="../../../../usage/administration/admin_api/registration_tokens.html">Registration Tokens</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/room_membership.html">Manipulate Room Membership</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/rooms.html">Rooms</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/statistics.html">Statistics</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/user_admin_api.html">Users</a></li><li class="chapter-item expanded "><a href="../../../../admin_api/version_api.html">Server Version</a></li><li class="chapter-item expanded "><a href="../../../../usage/administration/admin_api/federation.html">Federation</a></li></ol></li><li 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concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../../auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="../../../../media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="../../../../room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="../../../../deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="../../../../other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol>
+            </div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
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+                            <i id="git-edit-button" class="fa fa-edit"></i>
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+                    </div>
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+                        <input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
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+
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+                    <main>
+                        <!-- Page table of contents -->
+                        <div class="sidetoc">
+                            <nav class="pagetoc"></nav>
+                        </div>
+
+                        <h1 id="cas"><a class="header" href="#cas">CAS</a></h1>
+<p>Synapse supports authenticating users via the <a href="https://en.wikipedia.org/wiki/Central_Authentication_Service">Central Authentication
+Service protocol</a>
+(CAS) natively.</p>
+<p>Please see the <a href="../../../configuration/config_documentation.html#cas_config">cas_config</a> and <a href="../../../configuration/config_documentation.html#sso">sso</a>
+sections of the configuration manual for more details.</p>
+
+                    </main>
+
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+                        <!-- Mobile navigation buttons -->
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+</html>
\ No newline at end of file
diff --git a/v1.92/usage/configuration/user_authentication/single_sign_on/index.html b/v1.92/usage/configuration/user_authentication/single_sign_on/index.html
new file mode 100644
index 0000000000..784d41afa8
--- /dev/null
+++ b/v1.92/usage/configuration/user_authentication/single_sign_on/index.html
@@ -0,0 +1,193 @@
+<!DOCTYPE HTML>
+<html lang="en" class="sidebar-visible no-js light">
+    <head>
+        <!-- Book generated using mdBook -->
+        <meta charset="UTF-8">
+        <title>Single-Sign On - 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 -->
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+        <link rel="stylesheet" href="../../../../tomorrow-night.css">
+        <link rel="stylesheet" href="../../../../ayu-highlight.css">
+
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+        <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><ol class="section"><li class="chapter-item expanded "><a href="../../../../setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item 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concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../../../auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="../../../../media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="../../../../room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="../../../../deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="../../../../other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol>
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+
+                        <h1 id="single-sign-on"><a class="header" href="#single-sign-on">Single Sign-On</a></h1>
+<p>Synapse supports single sign-on through the SAML, Open ID Connect or CAS protocols. 
+LDAP and other login methods are supported through first and third-party password
+auth provider modules.</p>
+
+                    </main>
+
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+++ b/v1.92/usage/configuration/user_authentication/single_sign_on/saml.html
@@ -0,0 +1,195 @@
+<!DOCTYPE HTML>
+<html lang="en" class="sidebar-visible no-js light">
+    <head>
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+        </script>
+
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+            <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><ol class="section"><li class="chapter-item expanded "><a href="../../../../setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item 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