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diff --git a/v1.91/openid.html b/v1.91/openid.html new file mode 100644 index 0000000000..f22812e707 --- /dev/null +++ b/v1.91/openid.html @@ -0,0 +1,819 @@ +<!DOCTYPE HTML> +<html lang="en" class="sidebar-visible no-js light"> + <head> + <!-- Book generated using mdBook --> + <meta charset="UTF-8"> + <title>OpenID Connect - 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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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 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class="active">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 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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 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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> + <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" 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(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/openid.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="configuring-synapse-to-authenticate-against-an-openid-connect-provider"><a class="header" href="#configuring-synapse-to-authenticate-against-an-openid-connect-provider">Configuring Synapse to authenticate against an OpenID Connect provider</a></h1> +<p>Synapse can be configured to use an OpenID Connect Provider (OP) for +authentication, instead of its own local password database.</p> +<p>Any OP should work with Synapse, as long as it supports the authorization code +flow. There are a few options for that:</p> +<ul> +<li> +<p>start a local OP. Synapse has been tested with <a href="https://www.ory.sh/docs/hydra/">Hydra</a> and +<a href="https://github.com/dexidp/dex">Dex</a>. Note that for an OP to work, it should be served under a +secure (HTTPS) origin. A certificate signed with a self-signed, locally +trusted CA should work. In that case, start Synapse with a <code>SSL_CERT_FILE</code> +environment variable set to the path of the CA.</p> +</li> +<li> +<p>set up a SaaS OP, like <a href="https://developers.google.com/identity/protocols/oauth2/openid-connect">Google</a>, <a href="https://auth0.com/">Auth0</a> or +<a href="https://www.okta.com/">Okta</a>. Synapse has been tested with Auth0 and Google.</p> +</li> +</ul> +<p>It may also be possible to use other OAuth2 providers which provide the +<a href="https://tools.ietf.org/html/rfc6749#section-4.1">authorization code grant type</a>, +such as <a href="https://developer.github.com/apps/building-oauth-apps/authorizing-oauth-apps">Github</a>.</p> +<h2 id="preparing-synapse"><a class="header" href="#preparing-synapse">Preparing Synapse</a></h2> +<p>The OpenID integration in Synapse uses the +<a href="https://pypi.org/project/Authlib/"><code>authlib</code></a> library, which must be installed +as follows:</p> +<ul> +<li> +<p>The relevant libraries are included in the Docker images and Debian packages +provided by <code>matrix.org</code> so no further action is needed.</p> +</li> +<li> +<p>If you installed Synapse into a virtualenv, run <code>/path/to/env/bin/pip install matrix-synapse[oidc]</code> to install the necessary dependencies.</p> +</li> +<li> +<p>For other installation mechanisms, see the documentation provided by the +maintainer.</p> +</li> +</ul> +<p>To enable the OpenID integration, you should then add a section to the <code>oidc_providers</code> +setting in your configuration file. +See the <a href="usage/configuration/config_documentation.html#oidc_providers">configuration manual</a> for some sample settings, as well as +the text below for example configurations for specific providers.</p> +<h2 id="oidc-back-channel-logout"><a class="header" href="#oidc-back-channel-logout">OIDC Back-Channel Logout</a></h2> +<p>Synapse supports receiving <a href="https://openid.net/specs/openid-connect-backchannel-1_0.html">OpenID Connect Back-Channel Logout</a> notifications.</p> +<p>This lets the OpenID Connect Provider notify Synapse when a user logs out, so that Synapse can end that user session. +This feature can be enabled by setting the <code>backchannel_logout_enabled</code> property to <code>true</code> in the provider configuration, and setting the following URL as destination for Back-Channel Logout notifications in your OpenID Connect Provider: <code>[synapse public baseurl]/_synapse/client/oidc/backchannel_logout</code></p> +<h2 id="sample-configs"><a class="header" href="#sample-configs">Sample configs</a></h2> +<p>Here are a few configs for providers that should work with Synapse.</p> +<h3 id="microsoft-azure-active-directory"><a class="header" href="#microsoft-azure-active-directory">Microsoft Azure Active Directory</a></h3> +<p>Azure AD can act as an OpenID Connect Provider. Register a new application under +<em>App registrations</em> in the Azure AD management console. The RedirectURI for your +application should point to your matrix server: +<code>[synapse public baseurl]/_synapse/client/oidc/callback</code></p> +<p>Go to <em>Certificates & secrets</em> and register a new client secret. Make note of your +Directory (tenant) ID as it will be used in the Azure links. +Edit your Synapse config file and change the <code>oidc_config</code> section:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: microsoft + idp_name: Microsoft + issuer: "https://login.microsoftonline.com/<tenant id>/v2.0" + client_id: "<client id>" + client_secret: "<client secret>" + scopes: ["openid", "profile"] + authorization_endpoint: "https://login.microsoftonline.com/<tenant id>/oauth2/v2.0/authorize" + token_endpoint: "https://login.microsoftonline.com/<tenant id>/oauth2/v2.0/token" + userinfo_endpoint: "https://graph.microsoft.com/oidc/userinfo" + + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username.split('@')[0] }}" + display_name_template: "{{ user.name }}" +</code></pre> +<h3 id="apple"><a class="header" href="#apple">Apple</a></h3> +<p>Configuring "Sign in with Apple" (SiWA) requires an Apple Developer account.</p> +<p>You will need to create a new "Services ID" for SiWA, and create and download a +private key with "SiWA" enabled.</p> +<p>As well as the private key file, you will need:</p> +<ul> +<li>Client ID: the "identifier" you gave the "Services ID"</li> +<li>Team ID: a 10-character ID associated with your developer account.</li> +<li>Key ID: the 10-character identifier for the key.</li> +</ul> +<p><a href="https://help.apple.com/developer-account/?lang=en#/dev77c875b7e">Apple's developer documentation</a> +has more information on setting up SiWA.</p> +<p>The synapse config will look like this:</p> +<pre><code class="language-yaml"> - idp_id: apple + idp_name: Apple + issuer: "https://appleid.apple.com" + client_id: "your-client-id" # Set to the "identifier" for your "ServicesID" + client_auth_method: "client_secret_post" + client_secret_jwt_key: + key_file: "/path/to/AuthKey_KEYIDCODE.p8" # point to your key file + jwt_header: + alg: ES256 + kid: "KEYIDCODE" # Set to the 10-char Key ID + jwt_payload: + iss: TEAMIDCODE # Set to the 10-char Team ID + scopes: ["name", "email", "openid"] + authorization_endpoint: https://appleid.apple.com/auth/authorize?response_mode=form_post + user_mapping_provider: + config: + email_template: "{{ user.email }}" +</code></pre> +<h3 id="auth0"><a class="header" href="#auth0">Auth0</a></h3> +<p><a href="https://auth0.com/">Auth0</a> is a hosted SaaS IdP solution.</p> +<ol> +<li> +<p>Create a regular web application for Synapse</p> +</li> +<li> +<p>Set the Allowed Callback URLs to <code>[synapse public baseurl]/_synapse/client/oidc/callback</code></p> +</li> +<li> +<p>Add a rule with any name to add the <code>preferred_username</code> claim. +(See https://auth0.com/docs/customize/rules/create-rules for more information on how to create rules.)</p> +<details> + <summary>Code sample</summary> +<pre><code class="language-js">function addPersistenceAttribute(user, context, callback) { + user.user_metadata = user.user_metadata || {}; + user.user_metadata.preferred_username = user.user_metadata.preferred_username || user.user_id; + context.idToken.preferred_username = user.user_metadata.preferred_username; + + auth0.users.updateUserMetadata(user.user_id, user.user_metadata) + .then(function(){ + callback(null, user, context); + }) + .catch(function(err){ + callback(err); + }); +} +</code></pre> +</li> +</ol> +</details> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: auth0 + idp_name: Auth0 + issuer: "https://your-tier.eu.auth0.com/" # TO BE FILLED + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + scopes: ["openid", "profile"] + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username }}" + display_name_template: "{{ user.name }}" +</code></pre> +<h3 id="authentik"><a class="header" href="#authentik">Authentik</a></h3> +<p><a href="https://goauthentik.io/">Authentik</a> is an open-source IdP solution.</p> +<ol> +<li>Create a provider in Authentik, with type OAuth2/OpenID.</li> +<li>The parameters are:</li> +</ol> +<ul> +<li>Client Type: Confidential</li> +<li>JWT Algorithm: RS256</li> +<li>Scopes: OpenID, Email and Profile</li> +<li>RSA Key: Select any available key</li> +<li>Redirect URIs: <code>[synapse public baseurl]/_synapse/client/oidc/callback</code></li> +</ul> +<ol start="3"> +<li>Create an application for synapse in Authentik and link it to the provider.</li> +<li>Note the slug of your application, Client ID and Client Secret.</li> +</ol> +<p>Note: RSA keys must be used for signing for Authentik, ECC keys do not work.</p> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: authentik + idp_name: authentik + discover: true + issuer: "https://your.authentik.example.org/application/o/your-app-slug/" # TO BE FILLED: domain and slug + client_id: "your client id" # TO BE FILLED + client_secret: "your client secret" # TO BE FILLED + scopes: + - "openid" + - "profile" + - "email" + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username }}" + display_name_template: "{{ user.preferred_username|capitalize }}" # TO BE FILLED: If your users have names in Authentik and you want those in Synapse, this should be replaced with user.name|capitalize. +</code></pre> +<h3 id="dex"><a class="header" href="#dex">Dex</a></h3> +<p><a href="https://github.com/dexidp/dex">Dex</a> is a simple, open-source OpenID Connect Provider. +Although it is designed to help building a full-blown provider with an +external database, it can be configured with static passwords in a config file.</p> +<p>Follow the <a href="https://dexidp.io/docs/getting-started/">Getting Started guide</a> +to install Dex.</p> +<p>Edit <code>examples/config-dev.yaml</code> config file from the Dex repo to add a client:</p> +<pre><code class="language-yaml">staticClients: +- id: synapse + secret: secret + redirectURIs: + - '[synapse public baseurl]/_synapse/client/oidc/callback' + name: 'Synapse' +</code></pre> +<p>Run with <code>dex serve examples/config-dev.yaml</code>.</p> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: dex + idp_name: "My Dex server" + skip_verification: true # This is needed as Dex is served on an insecure endpoint + issuer: "http://127.0.0.1:5556/dex" + client_id: "synapse" + client_secret: "secret" + scopes: ["openid", "profile"] + user_mapping_provider: + config: + localpart_template: "{{ user.name }}" + display_name_template: "{{ user.name|capitalize }}" +</code></pre> +<h3 id="django-oauth-toolkit"><a class="header" href="#django-oauth-toolkit">Django OAuth Toolkit</a></h3> +<p><a href="https://github.com/jazzband/django-oauth-toolkit">django-oauth-toolkit</a> is a +Django application providing out of the box all the endpoints, data and logic +needed to add OAuth2 capabilities to your Django projects. It supports +<a href="https://django-oauth-toolkit.readthedocs.io/en/latest/oidc.html">OpenID Connect too</a>.</p> +<p>Configuration on Django's side:</p> +<ol> +<li>Add an application: <code>https://example.com/admin/oauth2_provider/application/add/</code> and choose parameters like this:</li> +</ol> +<ul> +<li><code>Redirect uris</code>: <code>https://synapse.example.com/_synapse/client/oidc/callback</code></li> +<li><code>Client type</code>: <code>Confidential</code></li> +<li><code>Authorization grant type</code>: <code>Authorization code</code></li> +<li><code>Algorithm</code>: <code>HMAC with SHA-2 256</code></li> +</ul> +<ol start="2"> +<li> +<p>You can <a href="https://django-oauth-toolkit.readthedocs.io/en/latest/oidc.html#customizing-the-oidc-responses">customize the claims</a> Django gives to synapse (optional):</p> +<details> + <summary>Code sample</summary> +<pre><code class="language-python">class CustomOAuth2Validator(OAuth2Validator): + + def get_additional_claims(self, request): + return { + "sub": request.user.email, + "email": request.user.email, + "first_name": request.user.first_name, + "last_name": request.user.last_name, + } +</code></pre> +</details> +</li> +</ol> +<p>Your synapse config is then:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: django_example + idp_name: "Django Example" + issuer: "https://example.com/o/" + client_id: "your-client-id" # CHANGE ME + client_secret: "your-client-secret" # CHANGE ME + scopes: ["openid"] + user_profile_method: "userinfo_endpoint" # needed because oauth-toolkit does not include user information in the authorization response + user_mapping_provider: + config: + localpart_template: "{{ user.email.split('@')[0] }}" + display_name_template: "{{ user.first_name }} {{ user.last_name }}" + email_template: "{{ user.email }}" +</code></pre> +<h3 id="facebook"><a class="header" href="#facebook">Facebook</a></h3> +<ol start="0"> +<li>You will need a Facebook developer account. You can register for one +<a href="https://developers.facebook.com/async/registration/">here</a>.</li> +<li>On the <a href="https://developers.facebook.com/apps/">apps</a> page of the developer +console, "Create App", and choose "Build Connected Experiences".</li> +<li>Once the app is created, add "Facebook Login" and choose "Web". You don't +need to go through the whole form here.</li> +<li>In the left-hand menu, open "Products"/"Facebook Login"/"Settings". +<ul> +<li>Add <code>[synapse public baseurl]/_synapse/client/oidc/callback</code> as an OAuth Redirect +URL.</li> +</ul> +</li> +<li>In the left-hand menu, open "Settings/Basic". Here you can copy the "App ID" +and "App Secret" for use below.</li> +</ol> +<p>Synapse config:</p> +<pre><code class="language-yaml"> - idp_id: facebook + idp_name: Facebook + idp_brand: "facebook" # optional: styling hint for clients + discover: false + issuer: "https://www.facebook.com" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + scopes: ["openid", "email"] + authorization_endpoint: "https://facebook.com/dialog/oauth" + token_endpoint: "https://graph.facebook.com/v9.0/oauth/access_token" + jwks_uri: "https://www.facebook.com/.well-known/oauth/openid/jwks/" + user_mapping_provider: + config: + display_name_template: "{{ user.name }}" + email_template: "{{ user.email }}" +</code></pre> +<p>Relevant documents:</p> +<ul> +<li><a href="https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow">Manually Build a Login Flow</a></li> +<li><a href="https://developers.facebook.com/docs/graph-api/using-graph-api/">Using Facebook's Graph API</a></li> +<li><a href="https://developers.facebook.com/docs/graph-api/reference/user">Reference to the User endpoint</a></li> +</ul> +<p>Facebook do have an <a href="https://www.facebook.com/.well-known/openid-configuration">OIDC discovery endpoint</a>, +but it has a <code>response_types_supported</code> which excludes "code" (which we rely on, and +is even mentioned in their <a href="https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow#login">documentation</a>), +so we have to disable discovery and configure the URIs manually.</p> +<h3 id="github"><a class="header" href="#github">GitHub</a></h3> +<p><a href="https://developer.github.com/apps/building-oauth-apps/authorizing-oauth-apps">GitHub</a> is a bit special as it is not an OpenID Connect compliant provider, but +just a regular OAuth2 provider.</p> +<p>The <a href="https://developer.github.com/v3/users/#get-the-authenticated-user"><code>/user</code> API endpoint</a> +can be used to retrieve information on the authenticated user. As the Synapse +login mechanism needs an attribute to uniquely identify users, and that endpoint +does not return a <code>sub</code> property, an alternative <code>subject_claim</code> has to be set.</p> +<ol> +<li>Create a new OAuth application: <a href="https://github.com/settings/applications/new">https://github.com/settings/applications/new</a>.</li> +<li>Set the callback URL to <code>[synapse public baseurl]/_synapse/client/oidc/callback</code>.</li> +</ol> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: github + idp_name: Github + idp_brand: "github" # optional: styling hint for clients + discover: false + issuer: "https://github.com/" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + authorization_endpoint: "https://github.com/login/oauth/authorize" + token_endpoint: "https://github.com/login/oauth/access_token" + userinfo_endpoint: "https://api.github.com/user" + scopes: ["read:user"] + user_mapping_provider: + config: + subject_claim: "id" + localpart_template: "{{ user.login }}" + display_name_template: "{{ user.name }}" +</code></pre> +<h3 id="gitlab"><a class="header" href="#gitlab">GitLab</a></h3> +<ol> +<li>Create a <a href="https://gitlab.com/profile/applications">new application</a>.</li> +<li>Add the <code>read_user</code> and <code>openid</code> scopes.</li> +<li>Add this Callback URL: <code>[synapse public baseurl]/_synapse/client/oidc/callback</code></li> +</ol> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: gitlab + idp_name: Gitlab + idp_brand: "gitlab" # optional: styling hint for clients + issuer: "https://gitlab.com/" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + client_auth_method: "client_secret_post" + scopes: ["openid", "read_user"] + user_profile_method: "userinfo_endpoint" + user_mapping_provider: + config: + localpart_template: '{{ user.nickname }}' + display_name_template: '{{ user.name }}' +</code></pre> +<h3 id="gitea"><a class="header" href="#gitea">Gitea</a></h3> +<p>Gitea is, like Github, not an OpenID provider, but just an OAuth2 provider.</p> +<p>The <a href="https://try.gitea.io/api/swagger#/user/userGetCurrent"><code>/user</code> API endpoint</a> +can be used to retrieve information on the authenticated user. As the Synapse +login mechanism needs an attribute to uniquely identify users, and that endpoint +does not return a <code>sub</code> property, an alternative <code>subject_claim</code> has to be set.</p> +<ol> +<li>Create a new application.</li> +<li>Add this Callback URL: <code>[synapse public baseurl]/_synapse/client/oidc/callback</code></li> +</ol> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: gitea + idp_name: Gitea + discover: false + issuer: "https://your-gitea.com/" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + client_auth_method: client_secret_post + scopes: [] # Gitea doesn't support Scopes + authorization_endpoint: "https://your-gitea.com/login/oauth/authorize" + token_endpoint: "https://your-gitea.com/login/oauth/access_token" + userinfo_endpoint: "https://your-gitea.com/api/v1/user" + user_mapping_provider: + config: + subject_claim: "id" + localpart_template: "{{ user.login }}" + display_name_template: "{{ user.full_name }}" +</code></pre> +<h3 id="google"><a class="header" href="#google">Google</a></h3> +<p><a href="https://developers.google.com/identity/protocols/oauth2/openid-connect">Google</a> is an OpenID certified authentication and authorisation provider.</p> +<ol> +<li>Set up a project in the Google API Console (see +<a href="https://developers.google.com/identity/protocols/oauth2/openid-connect#appsetup">documentation</a>).</li> +<li>Add an "OAuth Client ID" for a Web Application under "Credentials".</li> +<li>Copy the Client ID and Client Secret, and add the following to your synapse config: +<pre><code class="language-yaml">oidc_providers: + - idp_id: google + idp_name: Google + idp_brand: "google" # optional: styling hint for clients + issuer: "https://accounts.google.com/" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + scopes: ["openid", "profile", "email"] # email is optional, read below + user_mapping_provider: + config: + localpart_template: "{{ user.given_name|lower }}" + display_name_template: "{{ user.name }}" + email_template: "{{ user.email }}" # needs "email" in scopes above +</code></pre> +</li> +<li>Back in the Google console, add this Authorized redirect URI: <code>[synapse public baseurl]/_synapse/client/oidc/callback</code>.</li> +</ol> +<h3 id="keycloak"><a class="header" href="#keycloak">Keycloak</a></h3> +<p><a href="https://www.keycloak.org/docs/latest/server_admin/#sso-protocols">Keycloak</a> is an opensource IdP maintained by Red Hat.</p> +<p>Keycloak supports OIDC Back-Channel Logout, which sends logout notification to Synapse, so that Synapse users get logged out when they log out from Keycloak. +This can be optionally enabled by setting <code>backchannel_logout_enabled</code> to <code>true</code> in the Synapse configuration, and by setting the "Backchannel Logout URL" in Keycloak.</p> +<p>Follow the <a href="https://www.keycloak.org/guides">Getting Started Guide</a> to install Keycloak and set up a realm.</p> +<ol> +<li> +<p>Click <code>Clients</code> in the sidebar and click <code>Create</code></p> +</li> +<li> +<p>Fill in the fields as below:</p> +</li> +</ol> +<table><thead><tr><th>Field</th><th>Value</th></tr></thead><tbody> +<tr><td>Client ID</td><td><code>synapse</code></td></tr> +<tr><td>Client Protocol</td><td><code>openid-connect</code></td></tr> +</tbody></table> +<ol start="3"> +<li>Click <code>Save</code></li> +<li>Fill in the fields as below:</li> +</ol> +<table><thead><tr><th>Field</th><th>Value</th></tr></thead><tbody> +<tr><td>Client ID</td><td><code>synapse</code></td></tr> +<tr><td>Enabled</td><td><code>On</code></td></tr> +<tr><td>Client Protocol</td><td><code>openid-connect</code></td></tr> +<tr><td>Access Type</td><td><code>confidential</code></td></tr> +<tr><td>Valid Redirect URIs</td><td><code>[synapse public baseurl]/_synapse/client/oidc/callback</code></td></tr> +<tr><td>Backchannel Logout URL (optional)</td><td> <code>[synapse public baseurl]/_synapse/client/oidc/backchannel_logout</code></td></tr> +<tr><td>Backchannel Logout Session Required (optional)</td><td> <code>On</code></td></tr> +</tbody></table> +<ol start="5"> +<li>Click <code>Save</code></li> +<li>On the Credentials tab, update the fields:</li> +</ol> +<table><thead><tr><th>Field</th><th>Value</th></tr></thead><tbody> +<tr><td>Client Authenticator</td><td><code>Client ID and Secret</code></td></tr> +</tbody></table> +<ol start="7"> +<li>Click <code>Regenerate Secret</code></li> +<li>Copy Secret</li> +</ol> +<pre><code class="language-yaml">oidc_providers: + - idp_id: keycloak + idp_name: "My KeyCloak server" + issuer: "https://127.0.0.1:8443/realms/{realm_name}" + client_id: "synapse" + client_secret: "copy secret generated from above" + scopes: ["openid", "profile"] + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username }}" + display_name_template: "{{ user.name }}" + backchannel_logout_enabled: true # Optional +</code></pre> +<h3 id="lemonldap"><a class="header" href="#lemonldap">LemonLDAP</a></h3> +<p><a href="https://lemonldap-ng.org/">LemonLDAP::NG</a> is an open-source IdP solution.</p> +<ol> +<li>Create an OpenID Connect Relying Parties in LemonLDAP::NG</li> +<li>The parameters are:</li> +</ol> +<ul> +<li>Client ID under the basic menu of the new Relying Parties (<code>Options > Basic > Client ID</code>)</li> +<li>Client secret (<code>Options > Basic > Client secret</code>)</li> +<li>JWT Algorithm: RS256 within the security menu of the new Relying Parties +(<code>Options > Security > ID Token signature algorithm</code> and <code>Options > Security > Access Token signature algorithm</code>)</li> +<li>Scopes: OpenID, Email and Profile</li> +<li>Allowed redirection addresses for login (<code>Options > Basic > Allowed redirection addresses for login</code> ) : +<code>[synapse public baseurl]/_synapse/client/oidc/callback</code></li> +</ul> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: lemonldap + idp_name: lemonldap + discover: true + issuer: "https://auth.example.org/" # TO BE FILLED: replace with your domain + client_id: "your client id" # TO BE FILLED + client_secret: "your client secret" # TO BE FILLED + scopes: + - "openid" + - "profile" + - "email" + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username }}}" + # TO BE FILLED: If your users have names in LemonLDAP::NG and you want those in Synapse, this should be replaced with user.name|capitalize or any valid filter. + display_name_template: "{{ user.preferred_username|capitalize }}" +</code></pre> +<h3 id="mastodon"><a class="header" href="#mastodon">Mastodon</a></h3> +<p><a href="https://docs.joinmastodon.org/">Mastodon</a> instances provide an <a href="https://docs.joinmastodon.org/spec/oauth/">OAuth API</a>, allowing those instances to be used as a single sign-on provider for Synapse.</p> +<p>The first step is to register Synapse as an application with your Mastodon instance, using the <a href="https://docs.joinmastodon.org/methods/apps/#create">Create an application API</a> (see also <a href="https://docs.joinmastodon.org/client/token/">here</a>). There are several ways to do this, but in the example below we are using CURL.</p> +<p>This example assumes that:</p> +<ul> +<li>the Mastodon instance website URL is <code>https://your.mastodon.instance.url</code>, and</li> +<li>Synapse will be registered as an app named <code>my_synapse_app</code>.</li> +</ul> +<p>Send the following request, substituting the value of <code>synapse_public_baseurl</code> from your Synapse installation.</p> +<pre><code class="language-sh">curl -d "client_name=my_synapse_app&redirect_uris=https://[synapse_public_baseurl]/_synapse/client/oidc/callback" -X POST https://your.mastodon.instance.url/api/v1/apps +</code></pre> +<p>You should receive a response similar to the following. Make sure to save it.</p> +<pre><code class="language-json">{"client_id":"someclientid_123","client_secret":"someclientsecret_123","id":"12345","name":"my_synapse_app","redirect_uri":"https://[synapse_public_baseurl]/_synapse/client/oidc/callback","website":null,"vapid_key":"somerandomvapidkey_123"} +</code></pre> +<p>As the Synapse login mechanism needs an attribute to uniquely identify users, and Mastodon's endpoint does not return a <code>sub</code> property, an alternative <code>subject_template</code> has to be set. Your Synapse configuration should include the following:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: my_mastodon + idp_name: "Mastodon Instance Example" + discover: false + issuer: "https://your.mastodon.instance.url/@admin" + client_id: "someclientid_123" + client_secret: "someclientsecret_123" + authorization_endpoint: "https://your.mastodon.instance.url/oauth/authorize" + token_endpoint: "https://your.mastodon.instance.url/oauth/token" + userinfo_endpoint: "https://your.mastodon.instance.url/api/v1/accounts/verify_credentials" + scopes: ["read"] + user_mapping_provider: + config: + subject_template: "{{ user.id }}" + localpart_template: "{{ user.username }}" + display_name_template: "{{ user.display_name }}" +</code></pre> +<p>Note that the fields <code>client_id</code> and <code>client_secret</code> are taken from the CURL response above.</p> +<h3 id="shibboleth-with-oidc-plugin"><a class="header" href="#shibboleth-with-oidc-plugin">Shibboleth with OIDC Plugin</a></h3> +<p><a href="https://www.shibboleth.net/">Shibboleth</a> is an open Standard IdP solution widely used by Universities.</p> +<ol> +<li>Shibboleth needs the <a href="https://shibboleth.atlassian.net/wiki/spaces/IDPPLUGINS/pages/1376878976/OIDC+OP">OIDC Plugin</a> installed and working correctly.</li> +<li>Create a new config on the IdP Side, ensure that the <code>client_id</code> and <code>client_secret</code> +are randomly generated data.</li> +</ol> +<pre><code class="language-json">{ + "client_id": "SOME-CLIENT-ID", + "client_secret": "SOME-SUPER-SECRET-SECRET", + "response_types": ["code"], + "grant_types": ["authorization_code"], + "scope": "openid profile email", + "redirect_uris": ["https://[synapse public baseurl]/_synapse/client/oidc/callback"] +} +</code></pre> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + # Shibboleth IDP + # + - idp_id: shibboleth + idp_name: "Shibboleth Login" + discover: true + issuer: "https://YOUR-IDP-URL.TLD" + client_id: "YOUR_CLIENT_ID" + client_secret: "YOUR-CLIENT-SECRECT-FROM-YOUR-IDP" + scopes: ["openid", "profile", "email"] + allow_existing_users: true + user_profile_method: "userinfo_endpoint" + user_mapping_provider: + config: + subject_claim: "sub" + localpart_template: "{{ user.sub.split('@')[0] }}" + display_name_template: "{{ user.name }}" + email_template: "{{ user.email }}" +</code></pre> +<h3 id="twitch"><a class="header" href="#twitch">Twitch</a></h3> +<ol> +<li>Setup a developer account on <a href="https://dev.twitch.tv/">Twitch</a></li> +<li>Obtain the OAuth 2.0 credentials by <a href="https://dev.twitch.tv/console/apps/">creating an app</a></li> +<li>Add this OAuth Redirect URL: <code>[synapse public baseurl]/_synapse/client/oidc/callback</code></li> +</ol> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: twitch + idp_name: Twitch + issuer: "https://id.twitch.tv/oauth2/" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + client_auth_method: "client_secret_post" + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username }}" + display_name_template: "{{ user.name }}" +</code></pre> +<h3 id="twitter"><a class="header" href="#twitter">Twitter</a></h3> +<p><em>Using Twitter as an identity provider requires using Synapse 1.75.0 or later.</em></p> +<ol> +<li>Setup a developer account on <a href="https://developer.twitter.com/en/portal/dashboard">Twitter</a></li> +<li>Create a project & app.</li> +<li>Enable user authentication and under "Type of App" choose "Web App, Automated App or Bot".</li> +<li>Under "App info" set the callback URL to <code>[synapse public baseurl]/_synapse/client/oidc/callback</code>.</li> +<li>Obtain the OAuth 2.0 credentials under the "Keys and tokens" tab, copy the "OAuth 2.0 Client ID and Client Secret"</li> +</ol> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: twitter + idp_name: Twitter + idp_brand: "twitter" # optional: styling hint for clients + discover: false # Twitter is not OpenID compliant. + issuer: "https://twitter.com/" + client_id: "your-client-id" # TO BE FILLED + client_secret: "your-client-secret" # TO BE FILLED + pkce_method: "always" + # offline.access providers refresh tokens, tweet.read and users.read needed for userinfo request. + scopes: ["offline.access", "tweet.read", "users.read"] + authorization_endpoint: https://twitter.com/i/oauth2/authorize + token_endpoint: https://api.twitter.com/2/oauth2/token + userinfo_endpoint: https://api.twitter.com/2/users/me?user.fields=profile_image_url + user_mapping_provider: + config: + subject_template: "{{ user.data.id }}" + localpart_template: "{{ user.data.username }}" + display_name_template: "{{ user.data.name }}" + picture_template: "{{ user.data.profile_image_url }}" +</code></pre> +<h3 id="xwiki"><a class="header" href="#xwiki">XWiki</a></h3> +<p>Install <a href="https://extensions.xwiki.org/xwiki/bin/view/Extension/OpenID%20Connect/OpenID%20Connect%20Provider/">OpenID Connect Provider</a> extension in your <a href="https://www.xwiki.org">XWiki</a> instance.</p> +<p>Synapse config:</p> +<pre><code class="language-yaml">oidc_providers: + - idp_id: xwiki + idp_name: "XWiki" + issuer: "https://myxwikihost/xwiki/oidc/" + client_id: "your-client-id" # TO BE FILLED + client_auth_method: none + scopes: ["openid", "profile"] + user_profile_method: "userinfo_endpoint" + user_mapping_provider: + config: + localpart_template: "{{ user.preferred_username }}" + display_name_template: "{{ user.name }}" +</code></pre> + + </main> + + <nav class="nav-wrapper" aria-label="Page navigation"> + <!-- Mobile navigation buttons --> + <a rel="prev" href="usage/configuration/user_authentication/single_sign_on/index.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="usage/configuration/user_authentication/single_sign_on/saml.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="usage/configuration/user_authentication/single_sign_on/index.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="usage/configuration/user_authentication/single_sign_on/saml.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 |