<!DOCTYPE HTML> <html lang="en" class="sidebar-visible no-js light"> <head> <!-- Book generated using mdBook --> <meta charset="UTF-8"> <title>Manhole - 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"> <link rel="stylesheet" href="docs/website_files/version-picker.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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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 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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="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" class="theme" id="light">Light (default)</button></li> <li role="none"><button 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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/manhole.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="using-the-synapse-manhole"><a class="header" href="#using-the-synapse-manhole">Using the synapse manhole</a></h1> <p>The "manhole" allows server administrators to access a Python shell on a running Synapse installation. This is a very powerful mechanism for administration and debugging.</p> <p><strong><em>Security Warning</em></strong></p> <p>Note that this will give administrative access to synapse to <strong>all users</strong> with shell access to the server. It should therefore <strong>not</strong> be enabled in environments where untrusted users have shell access.</p> <h2 id="configuring-the-manhole"><a class="header" href="#configuring-the-manhole">Configuring the manhole</a></h2> <p>To enable it, first add the <code>manhole</code> listener configuration in your <code>homeserver.yaml</code>. You can find information on how to do that in the <a href="usage/configuration/config_documentation.html#manhole_settings">configuration manual</a>. The configuration is slightly different if you're using docker.</p> <h4 id="docker-config"><a class="header" href="#docker-config">Docker config</a></h4> <p>If you are using Docker, set <code>bind_addresses</code> to <code>['0.0.0.0']</code> as shown:</p> <pre><code class="language-yaml">listeners: - port: 9000 bind_addresses: ['0.0.0.0'] type: manhole </code></pre> <p>When using <code>docker run</code> to start the server, you will then need to change the command to the following to include the <code>manhole</code> port forwarding. The <code>-p 127.0.0.1:9000:9000</code> below is important: it ensures that access to the <code>manhole</code> is only possible for local users.</p> <pre><code class="language-bash">docker run -d --name synapse \ --mount type=volume,src=synapse-data,dst=/data \ -p 8008:8008 \ -p 127.0.0.1:9000:9000 \ matrixdotorg/synapse:latest </code></pre> <h4 id="native-config"><a class="header" href="#native-config">Native config</a></h4> <p>If you are not using docker, set <code>bind_addresses</code> to <code>['::1', '127.0.0.1']</code> as shown. The <code>bind_addresses</code> in the example below is important: it ensures that access to the <code>manhole</code> is only possible for local users).</p> <pre><code class="language-yaml">listeners: - port: 9000 bind_addresses: ['::1', '127.0.0.1'] type: manhole </code></pre> <h3 id="security-settings"><a class="header" href="#security-settings">Security settings</a></h3> <p>The following config options are available:</p> <ul> <li><code>username</code> - The username for the manhole (defaults to <code>matrix</code>)</li> <li><code>password</code> - The password for the manhole (defaults to <code>rabbithole</code>)</li> <li><code>ssh_priv_key</code> - The path to a private SSH key (defaults to a hardcoded value)</li> <li><code>ssh_pub_key</code> - The path to a public SSH key (defaults to a hardcoded value)</li> </ul> <p>For example:</p> <pre><code class="language-yaml">manhole_settings: username: manhole password: mypassword ssh_priv_key: "/home/synapse/manhole_keys/id_rsa" ssh_pub_key: "/home/synapse/manhole_keys/id_rsa.pub" </code></pre> <h2 id="accessing-synapse-manhole"><a class="header" href="#accessing-synapse-manhole">Accessing synapse manhole</a></h2> <p>Then restart synapse, and point an ssh client at port 9000 on localhost, using the username and password configured in <code>homeserver.yaml</code> - with the default configuration, this would be:</p> <pre><code class="language-bash">ssh -p9000 matrix@localhost </code></pre> <p>Then enter the password when prompted (the default is <code>rabbithole</code>).</p> <p>This gives a Python REPL in which <code>hs</code> gives access to the <code>synapse.server.HomeServer</code> object - which in turn gives access to many other parts of the process.</p> <p>Note that, prior to Synapse 1.41, any call which returns a coroutine will need to be wrapped in <code>ensureDeferred</code>.</p> <p>As a simple example, retrieving an event from the database:</p> <pre><code class="language-pycon">>>> from twisted.internet import defer >>> defer.ensureDeferred(hs.get_datastores().main.get_event('$1416420717069yeQaw:matrix.org')) <Deferred at 0x7ff253fc6998 current result: <FrozenEvent event_id='$1416420717069yeQaw:matrix.org', type='m.room.create', state_key=''>> </code></pre> </main> <nav class="nav-wrapper" aria-label="Page navigation"> <!-- Mobile navigation buttons --> <a rel="prev" href="usage/administration/admin_api/federation.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="metrics-howto.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/administration/admin_api/federation.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="metrics-howto.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>