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837 lines
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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 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">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" 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 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 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section 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 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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 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<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>
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<p>Synapse can be configured to use an OpenID Connect Provider (OP) for
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authentication, instead of its own local password database.</p>
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<p>Any OP should work with Synapse, as long as it supports the authorization code
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flow. There are a few options for that:</p>
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<ul>
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<li>
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<p>start a local OP. Synapse has been tested with <a href="https://www.ory.sh/docs/hydra/">Hydra</a> and
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<a href="https://github.com/dexidp/dex">Dex</a>. Note that for an OP to work, it should be served under a
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secure (HTTPS) origin. A certificate signed with a self-signed, locally
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trusted CA should work. In that case, start Synapse with a <code>SSL_CERT_FILE</code>
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environment variable set to the path of the CA.</p>
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</li>
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<li>
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<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
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<a href="https://www.okta.com/">Okta</a>. Synapse has been tested with Auth0 and Google.</p>
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</li>
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</ul>
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<p>It may also be possible to use other OAuth2 providers which provide the
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<a href="https://tools.ietf.org/html/rfc6749#section-4.1">authorization code grant type</a>,
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such as <a href="https://developer.github.com/apps/building-oauth-apps/authorizing-oauth-apps">Github</a>.</p>
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<h2 id="preparing-synapse"><a class="header" href="#preparing-synapse">Preparing Synapse</a></h2>
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<p>The OpenID integration in Synapse uses the
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<a href="https://pypi.org/project/Authlib/"><code>authlib</code></a> library, which must be installed
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as follows:</p>
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<ul>
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<li>
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<p>The relevant libraries are included in the Docker images and Debian packages
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provided by <code>matrix.org</code> so no further action is needed.</p>
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</li>
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<li>
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<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>
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</li>
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<li>
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<p>For other installation mechanisms, see the documentation provided by the
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maintainer.</p>
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</li>
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</ul>
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<p>To enable the OpenID integration, you should then add a section to the <code>oidc_providers</code>
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setting in your configuration file.
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See the <a href="usage/configuration/config_documentation.html#oidc_providers">configuration manual</a> for some sample settings, as well as
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the text below for example configurations for specific providers.</p>
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<h2 id="oidc-back-channel-logout"><a class="header" href="#oidc-back-channel-logout">OIDC Back-Channel Logout</a></h2>
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<p>Synapse supports receiving <a href="https://openid.net/specs/openid-connect-backchannel-1_0.html">OpenID Connect Back-Channel Logout</a> notifications.</p>
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<p>This lets the OpenID Connect Provider notify Synapse when a user logs out, so that Synapse can end that user session.
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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>
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<h2 id="sample-configs"><a class="header" href="#sample-configs">Sample configs</a></h2>
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<p>Here are a few configs for providers that should work with Synapse.</p>
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<h3 id="microsoft-azure-active-directory"><a class="header" href="#microsoft-azure-active-directory">Microsoft Azure Active Directory</a></h3>
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<p>Azure AD can act as an OpenID Connect Provider. Register a new application under
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<em>App registrations</em> in the Azure AD management console. The RedirectURI for your
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application should point to your matrix server:
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<code>[synapse public baseurl]/_synapse/client/oidc/callback</code></p>
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<p>Go to <em>Certificates & secrets</em> and register a new client secret. Make note of your
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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>Force claims into <code>id_token</code>
|
||
(<code>Options > Advanced > Force claims to be returned in ID Token</code>)</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>
|
||
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