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+
+                        <h1 id="querying-media"><a class="header" href="#querying-media">Querying media</a></h1>
+<p>These APIs allow extracting media information from the homeserver.</p>
+<p>Details about the format of the <code>media_id</code> and storage of the media in the file system
+are documented under <a href="../media_repository.html">media repository</a>.</p>
+<p>To use it, you will need to authenticate by providing an <code>access_token</code>
+for a server admin: see <a href="../usage/administration/admin_api/">Admin API</a>.</p>
+<h2 id="list-all-media-in-a-room"><a class="header" href="#list-all-media-in-a-room">List all media in a room</a></h2>
+<p>This API gets a list of known media in a room.
+However, it only shows media from unencrypted events or rooms.</p>
+<p>The API is:</p>
+<pre><code>GET /_synapse/admin/v1/room/&lt;room_id&gt;/media
+</code></pre>
+<p>The API returns a JSON body like the following:</p>
+<pre><code class="language-json">{
+  &quot;local&quot;: [
+    &quot;mxc://localhost/xwvutsrqponmlkjihgfedcba&quot;,
+    &quot;mxc://localhost/abcdefghijklmnopqrstuvwx&quot;
+  ],
+  &quot;remote&quot;: [
+    &quot;mxc://matrix.org/xwvutsrqponmlkjihgfedcba&quot;,
+    &quot;mxc://matrix.org/abcdefghijklmnopqrstuvwx&quot;
+  ]
+}
+</code></pre>
+<h2 id="list-all-media-uploaded-by-a-user"><a class="header" href="#list-all-media-uploaded-by-a-user">List all media uploaded by a user</a></h2>
+<p>Listing all media that has been uploaded by a local user can be achieved through
+the use of the
+<a href="user_admin_api.html#list-media-uploaded-by-a-user">List media uploaded by a user</a>
+Admin API.</p>
+<h1 id="quarantine-media"><a class="header" href="#quarantine-media">Quarantine media</a></h1>
+<p>Quarantining media means that it is marked as inaccessible by users. It applies
+to any local media, and any locally-cached copies of remote media.</p>
+<p>The media file itself (and any thumbnails) is not deleted from the server.</p>
+<h2 id="quarantining-media-by-id"><a class="header" href="#quarantining-media-by-id">Quarantining media by ID</a></h2>
+<p>This API quarantines a single piece of local or remote media.</p>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/media/quarantine/&lt;server_name&gt;/&lt;media_id&gt;
+
+{}
+</code></pre>
+<p>Where <code>server_name</code> is in the form of <code>example.org</code>, and <code>media_id</code> is in the
+form of <code>abcdefg12345...</code>.</p>
+<p>Response:</p>
+<pre><code class="language-json">{}
+</code></pre>
+<h2 id="remove-media-from-quarantine-by-id"><a class="header" href="#remove-media-from-quarantine-by-id">Remove media from quarantine by ID</a></h2>
+<p>This API removes a single piece of local or remote media from quarantine.</p>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/media/unquarantine/&lt;server_name&gt;/&lt;media_id&gt;
+
+{}
+</code></pre>
+<p>Where <code>server_name</code> is in the form of <code>example.org</code>, and <code>media_id</code> is in the
+form of <code>abcdefg12345...</code>.</p>
+<p>Response:</p>
+<pre><code class="language-json">{}
+</code></pre>
+<h2 id="quarantining-media-in-a-room"><a class="header" href="#quarantining-media-in-a-room">Quarantining media in a room</a></h2>
+<p>This API quarantines all local and remote media in a room.</p>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/room/&lt;room_id&gt;/media/quarantine
+
+{}
+</code></pre>
+<p>Where <code>room_id</code> is in the form of <code>!roomid12345:example.org</code>.</p>
+<p>Response:</p>
+<pre><code class="language-json">{
+  &quot;num_quarantined&quot;: 10
+}
+</code></pre>
+<p>The following fields are returned in the JSON response body:</p>
+<ul>
+<li><code>num_quarantined</code>: integer - The number of media items successfully quarantined</li>
+</ul>
+<p>Note that there is a legacy endpoint, <code>POST /_synapse/admin/v1/quarantine_media/&lt;room_id&gt;</code>, that operates the same.
+However, it is deprecated and may be removed in a future release.</p>
+<h2 id="quarantining-all-media-of-a-user"><a class="header" href="#quarantining-all-media-of-a-user">Quarantining all media of a user</a></h2>
+<p>This API quarantines all <em>local</em> media that a <em>local</em> user has uploaded. That is to say, if
+you would like to quarantine media uploaded by a user on a remote homeserver, you should
+instead use one of the other APIs.</p>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/user/&lt;user_id&gt;/media/quarantine
+
+{}
+</code></pre>
+<p>URL Parameters</p>
+<ul>
+<li><code>user_id</code>: string - User ID in the form of <code>@bob:example.org</code></li>
+</ul>
+<p>Response:</p>
+<pre><code class="language-json">{
+  &quot;num_quarantined&quot;: 10
+}
+</code></pre>
+<p>The following fields are returned in the JSON response body:</p>
+<ul>
+<li><code>num_quarantined</code>: integer - The number of media items successfully quarantined</li>
+</ul>
+<h2 id="protecting-media-from-being-quarantined"><a class="header" href="#protecting-media-from-being-quarantined">Protecting media from being quarantined</a></h2>
+<p>This API protects a single piece of local media from being quarantined using the
+above APIs. This is useful for sticker packs and other shared media which you do
+not want to get quarantined, especially when
+<a href="#quarantining-media-in-a-room">quarantining media in a room</a>.</p>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/media/protect/&lt;media_id&gt;
+
+{}
+</code></pre>
+<p>Where <code>media_id</code> is in the  form of <code>abcdefg12345...</code>.</p>
+<p>Response:</p>
+<pre><code class="language-json">{}
+</code></pre>
+<h2 id="unprotecting-media-from-being-quarantined"><a class="header" href="#unprotecting-media-from-being-quarantined">Unprotecting media from being quarantined</a></h2>
+<p>This API reverts the protection of a media.</p>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/media/unprotect/&lt;media_id&gt;
+
+{}
+</code></pre>
+<p>Where <code>media_id</code> is in the  form of <code>abcdefg12345...</code>.</p>
+<p>Response:</p>
+<pre><code class="language-json">{}
+</code></pre>
+<h1 id="delete-local-media"><a class="header" href="#delete-local-media">Delete local media</a></h1>
+<p>This API deletes the <em>local</em> media from the disk of your own server.
+This includes any local thumbnails and copies of media downloaded from
+remote homeservers.
+This API will not affect media that has been uploaded to external
+media repositories (e.g https://github.com/turt2live/matrix-media-repo/).
+See also <a href="#purge-remote-media-api">Purge Remote Media API</a>.</p>
+<h2 id="delete-a-specific-local-media"><a class="header" href="#delete-a-specific-local-media">Delete a specific local media</a></h2>
+<p>Delete a specific <code>media_id</code>.</p>
+<p>Request:</p>
+<pre><code>DELETE /_synapse/admin/v1/media/&lt;server_name&gt;/&lt;media_id&gt;
+
+{}
+</code></pre>
+<p>URL Parameters</p>
+<ul>
+<li><code>server_name</code>: string - The name of your local server (e.g <code>matrix.org</code>)</li>
+<li><code>media_id</code>: string - The ID of the media (e.g <code>abcdefghijklmnopqrstuvwx</code>)</li>
+</ul>
+<p>Response:</p>
+<pre><code class="language-json">{
+  &quot;deleted_media&quot;: [
+    &quot;abcdefghijklmnopqrstuvwx&quot;
+  ],
+  &quot;total&quot;: 1
+}
+</code></pre>
+<p>The following fields are returned in the JSON response body:</p>
+<ul>
+<li><code>deleted_media</code>: an array of strings - List of deleted <code>media_id</code></li>
+<li><code>total</code>: integer - Total number of deleted <code>media_id</code></li>
+</ul>
+<h2 id="delete-local-media-by-date-or-size"><a class="header" href="#delete-local-media-by-date-or-size">Delete local media by date or size</a></h2>
+<p>Request:</p>
+<pre><code>POST /_synapse/admin/v1/media/delete?before_ts=&lt;before_ts&gt;
+
+{}
+</code></pre>
+<p><em>Deprecated in Synapse v1.78.0:</em> This API is available at the deprecated endpoint:</p>
+<pre><code>POST /_synapse/admin/v1/media/&lt;server_name&gt;/delete?before_ts=&lt;before_ts&gt;
+
+{}
+</code></pre>
+<p>URL Parameters</p>
+<ul>
+<li><code>server_name</code>: string - The name of your local server (e.g <code>matrix.org</code>). <em>Deprecated in Synapse v1.78.0.</em></li>
+<li><code>before_ts</code>: string representing a positive integer - Unix timestamp in milliseconds.
+Files that were last used before this timestamp will be deleted. It is the timestamp of
+last access, not the timestamp when the file was created.</li>
+<li><code>size_gt</code>: Optional - string representing a positive integer - Size of the media in bytes.
+Files that are larger will be deleted. Defaults to <code>0</code>.</li>
+<li><code>keep_profiles</code>: Optional - string representing a boolean - Switch to also delete files
+that are still used in image data (e.g user profile, room avatar).
+If <code>false</code> these files will be deleted. Defaults to <code>true</code>.</li>
+</ul>
+<p>Response:</p>
+<pre><code class="language-json">{
+  &quot;deleted_media&quot;: [
+    &quot;abcdefghijklmnopqrstuvwx&quot;,
+    &quot;abcdefghijklmnopqrstuvwz&quot;
+  ],
+  &quot;total&quot;: 2
+}
+</code></pre>
+<p>The following fields are returned in the JSON response body:</p>
+<ul>
+<li><code>deleted_media</code>: an array of strings - List of deleted <code>media_id</code></li>
+<li><code>total</code>: integer - Total number of deleted <code>media_id</code></li>
+</ul>
+<h2 id="delete-media-uploaded-by-a-user"><a class="header" href="#delete-media-uploaded-by-a-user">Delete media uploaded by a user</a></h2>
+<p>You can find details of how to delete multiple media uploaded by a user in
+<a href="user_admin_api.html#delete-media-uploaded-by-a-user">User Admin API</a>.</p>
+<h1 id="purge-remote-media-api"><a class="header" href="#purge-remote-media-api">Purge Remote Media API</a></h1>
+<p>The purge remote media API allows server admins to purge old cached remote media.</p>
+<p>The API is:</p>
+<pre><code>POST /_synapse/admin/v1/purge_media_cache?before_ts=&lt;unix_timestamp_in_ms&gt;
+
+{}
+</code></pre>
+<p>URL Parameters</p>
+<ul>
+<li><code>before_ts</code>: string representing a positive integer - Unix timestamp in milliseconds.
+All cached media that was last accessed before this timestamp will be removed.</li>
+</ul>
+<p>Response:</p>
+<pre><code class="language-json">{
+  &quot;deleted&quot;: 10
+}
+</code></pre>
+<p>The following fields are returned in the JSON response body:</p>
+<ul>
+<li><code>deleted</code>: integer - The number of media items successfully deleted</li>
+</ul>
+<p>If the user re-requests purged remote media, synapse will re-request the media
+from the originating server.</p>
+
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