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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 class="version-picker"> <div class="dropdown"> <div class="select"> <span></span> <i class="fa fa-chevron-down"></i> </div> <input type="hidden" name="version"> <ul class="dropdown-menu"> <!-- Versions will be added dynamically in version-picker.js --> </ul> </div> </div> </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/jwt.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="jwt-login-type"><a class="header" href="#jwt-login-type">JWT Login Type</a></h1> <p>Synapse comes with a non-standard login type to support <a href="https://en.wikipedia.org/wiki/JSON_Web_Token">JSON Web Tokens</a>. In general the documentation for <a href="https://matrix.org/docs/spec/client_server/r0.6.1#login">the login endpoint</a> is still valid (and the mechanism works similarly to the <a href="https://matrix.org/docs/spec/client_server/r0.6.1#token-based">token based login</a>).</p> <p>To log in using a JSON Web Token, clients should submit a <code>/login</code> request as follows:</p> <pre><code class="language-json">{ "type": "org.matrix.login.jwt", "token": "<jwt>" } </code></pre> <p>Note that the login type of <code>m.login.jwt</code> is supported, but is deprecated. This will be removed in a future version of Synapse.</p> <p>The <code>token</code> field should include the JSON web token with the following claims:</p> <ul> <li>A claim that encodes the local part of the user ID is required. By default, the <code>sub</code> (subject) claim is used, or a custom claim can be set in the configuration file.</li> <li>The expiration time (<code>exp</code>), not before time (<code>nbf</code>), and issued at (<code>iat</code>) claims are optional, but validated if present.</li> <li>The issuer (<code>iss</code>) claim is optional, but required and validated if configured.</li> <li>The audience (<code>aud</code>) claim is optional, but required and validated if configured. Providing the audience claim when not configured will cause validation to fail.</li> </ul> <p>In the case that the token is not valid, the homeserver must respond with <code>403 Forbidden</code> and an error code of <code>M_FORBIDDEN</code>.</p> <p>As with other login types, there are additional fields (e.g. <code>device_id</code> and <code>initial_device_display_name</code>) which can be included in the above request.</p> <h2 id="preparing-synapse"><a class="header" href="#preparing-synapse">Preparing Synapse</a></h2> <p>The JSON Web Token integration in Synapse uses the <a href="https://pypi.org/project/pyjwt/"><code>PyJWT</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 synapse[pyjwt]</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 JSON web token integration, you should then add an <code>jwt_config</code> section to your configuration file (or uncomment the <code>enabled: true</code> line in the existing section). See <a href="./sample_config.yaml">sample_config.yaml</a> for some sample settings.</p> <h2 id="how-to-test-jwt-as-a-developer"><a class="header" href="#how-to-test-jwt-as-a-developer">How to test JWT as a developer</a></h2> <p>Although JSON Web Tokens are typically generated from an external server, the examples below use <a href="https://pyjwt.readthedocs.io/en/latest/">PyJWT</a> directly.</p> <ol> <li> <p>Configure Synapse with JWT logins, note that this example uses a pre-shared secret and an algorithm of HS256:</p> <pre><code class="language-yaml">jwt_config: enabled: true secret: "my-secret-token" algorithm: "HS256" </code></pre> </li> <li> <p>Generate a JSON web token:</p> <pre><code class="language-bash">$ pyjwt --key=my-secret-token --alg=HS256 encode sub=test-user eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJ0ZXN0LXVzZXIifQ.Ag71GT8v01UO3w80aqRPTeuVPBIBZkYhNTJJ-_-zQIc </code></pre> </li> <li> <p>Query for the login types and ensure <code>org.matrix.login.jwt</code> is there:</p> <pre><code class="language-bash">curl http://localhost:8080/_matrix/client/r0/login </code></pre> </li> <li> <p>Login used the generated JSON web token from above:</p> <pre><code class="language-bash">$ curl http://localhost:8082/_matrix/client/r0/login -X POST \ --data '{"type":"org.matrix.login.jwt","token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJ0ZXN0LXVzZXIifQ.Ag71GT8v01UO3w80aqRPTeuVPBIBZkYhNTJJ-_-zQIc"}' { "access_token": "<access token>", "device_id": "ACBDEFGHI", "home_server": "localhost:8080", "user_id": "@test-user:localhost:8480" } </code></pre> </li> </ol> <p>You should now be able to use the returned access token to query the client API.</p> </main> <nav class="nav-wrapper" aria-label="Page navigation"> <!-- Mobile navigation buttons --> <a rel="prev" href="password_auth_providers.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/refresh_tokens.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="password_auth_providers.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/refresh_tokens.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> <script type="text/javascript" src="docs/website_files/version-picker.js"></script> <script type="text/javascript" src="docs/website_files/version.js"></script> </body> </html>