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<title>[13002] sites/trunk/api.wordpress.org/public_html/dotorg/matrix/poster.php: [matrix] Poster class to post messages to matrix rooms</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://meta.trac.wordpress.org/changeset/13002">13002</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://meta.trac.wordpress.org/changeset/13002","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>ashfame</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-12-04 16:52:30 +0000 (Mon, 04 Dec 2023)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>[matrix] Poster class to post messages to matrix rooms</pre>
<h3>Added Paths</h3>
<ul>
<li><a href="#sitestrunkapiwordpressorgpublic_htmldotorgmatrixposterphp">sites/trunk/api.wordpress.org/public_html/dotorg/matrix/poster.php</a></li>
</ul>
</div>
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<h3>Diff</h3>
<a id="sitestrunkapiwordpressorgpublic_htmldotorgmatrixposterphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/api.wordpress.org/public_html/dotorg/matrix/poster.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/api.wordpress.org/public_html/dotorg/matrix/poster.php (rev 0)
+++ sites/trunk/api.wordpress.org/public_html/dotorg/matrix/poster.php 2023-12-04 16:52:30 UTC (rev 13002)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,204 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+
+namespace Dotorg\Matrix;
+
+const MATRIX_INTEGRATIONS_ENABLED = false;
+
+class Poster {
+ const HOMESERVER_NAME = 'community.wordpress.org';
+ const HOMESERVER_URL = 'https://wporg.automattrix.com';
+
+ /**
+ * Function to send a message to a matrix room, respecting the MATRIX_INTEGRATIONS_ENABLED constant
+ *
+ * Wrapper for _send() which actually does the sending
+ *
+ * @param string $where Room ID or Room alias reference (full or local part).
+ * @param string $message Text message to post.
+ * @param string|null $who Bot account that should post this message.
+ * @return void|bool Returns null on bad input, true on success, false on failure
+ */
+ public static function send( string $where, string $message, string $who = null ) {
+ if ( ! MATRIX_INTEGRATIONS_ENABLED ) {
+ return;
+ }
+
+ return self::_send( $where, $message, $who );
+ }
+
+ /**
+ * Function to send a message to a matrix room, regardless of MATRIX_INTEGRATIONS_ENABLED constant
+ *
+ * Blind wrapper for _send() which actually does the sending
+ *
+ * @param string $where Room ID or Room alias reference (full or local part).
+ * @param string $message Text message to post.
+ * @param string|null $who Bot account that should post this message.
+ * @return void|bool Returns null on bad input, true on success, false on failure
+ */
+ public static function force_send( string $where, string $message, string $who = null ) {
+ return self::_send( $where, $message, $who );
+ }
+
+ /**
+ * Function that figures out the room id & endpoint that would be used to post the message
+ *
+ * @param string $where Room ID or Room alias reference (full or local part).
+ * @param string $message Text message to post.
+ * @param string|null $who Bot account that should post this message.
+ * @return void|bool Returns null on bad input, true on success, false on failure
+ */
+ private static function _send( string $where, string $message, string $who = null ) {
+ if ( empty( $where ) || empty( trim( $message ) ) ) {
+ return;
+ }
+
+ $room_id = self::get_room_id( $where );
+ if ( false === $room_id ) {
+ return;
+ }
+
+ // which HTTP endpoint to use?
+ // constants defined in "secrets.php".
+ switch ( $who ) {
+ // case 'specificbot':
+ // $http_endpoint = MATRIX_INTEGRATIONS_SPECIFICBOT_POSTING_ENDPOINT;
+ // break;
+ default:
+ $http_endpoint = MATRIX_INTEGRATIONS_MATRIXBOT_POSTING_ENDPOINT;
+ }
+
+ return self::post_message( $room_id, $message, $http_endpoint );
+ }
+
+ /**
+ * Returns a room id from one of the acceptable values supplied for room:
+ * room alias part such as "core", "#core"
+ * room alias such as "#core:community.wordpress.org"
+ * room ID "!cHPvPsHiObbVCkAdiy:community.wordpress.org"
+ *
+ * @param string $where Room ID or Room alias reference (full or local part).
+ * @return string|bool Room ID or false upon error.
+ */
+ private static function get_room_id( string $where ) {
+ if ( '!' === $where[0] ) {
+ return $where;
+ }
+
+ if ( '#' !== $where[0] ) {
+ $room_alias = '#' . explode( ':', $where )[0] . ':' . self::HOMESERVER_NAME;
+ } else {
+ $room_alias = explode( ':', $where )[0] . ':' . self::HOMESERVER_NAME;
+ }
+
+ $resolved_room_id = self::resolve_room_alias( $room_alias );
+ if ( false === $resolved_room_id ) {
+ return false;
+ }
+
+ return $resolved_room_id;
+ }
+
+ /**
+ * Resolves matrix room alias "#core:community.wordpress.org" into
+ * room id "!cHPvPsHiObbVCkAdiy:community.wordpress.org"
+ *
+ * @param string $room_alias Room alias example: "#orbit:community.wordpress.org".
+ * @return string|bool room id on success and false on error
+ */
+ public static function resolve_room_alias( string $room_alias ) {
+ $cache_key = "matrix_room_alias_$room_alias";
+ $room_id = wp_cache_get( $cache_key, 'matrix' );
+
+ if ( false === $room_id ) {
+ $response = wp_remote_post(
+ self::HOMESERVER_URL . '/_matrix/client/v3/directory/room/' . rawurlencode( $room_alias ),
+ array(
+ 'method' => 'GET',
+ 'timeout' => 120,
+ )
+ );
+
+ if ( is_wp_error( $response ) ) {
+ $error_message = $response->get_error_message();
+ error_log( __FUNCTION__ . "() error resolving room alias '$room_alias' - $error_message" );
+ return false;
+ }
+ $status_code = wp_remote_retrieve_response_code( $response );
+ if ( 200 !== $status_code ) {
+ error_log( __FUNCTION__ . "() HTTP Error: $status_code" );
+ return false;
+ }
+
+ $decoded = json_decode( $response['body'], true );
+ if ( is_null( $decoded ) ) {
+ error_log( __FUNCTION__ . '() empty body returned' );
+ return false;
+ }
+
+ if ( isset( $decoded['room_id'] ) ) {
+ $room_id = $decoded['room_id'];
+ wp_cache_set( $cache_key, $room_id, 'matrix', DAY_IN_SECONDS );
+ }
+ }
+
+ return $room_id;
+ }
+
+ /**
+ * Posts the message by sending a POST request to maubot's HTTP endpoint.
+ *
+ * @param string $room_id RoomID to post to.
+ * @param string $message Text message to post.
+ * @param string $access_token Bot user account access token.
+ * @return bool true on success, false on failure
+ */
+ private static function post_message( string $room_id, string $message, string $http_endpoint ): bool {
+ // allow short-circuit via filter.
+ $filtered_args = apply_filters(
+ 'dotorg_matrix_poster_post_message',
+ array(
+ 'room_id' => $room_id,
+ 'message' => $message,
+ 'http_endpoint' => $http_endpoint,
+ )
+ );
+ $room_id = $filtered_args['room_id'];
+ $message = $filtered_args['message'];
+ $http_endpoint = $filtered_args['http_endpoint'];
+
+ if ( empty( $room_id ) || empty( $message ) || empty( $http_endpoint ) ) {
+ return false;
+ }
+
+ $response = wp_remote_post(
+ $http_endpoint,
+ array(
+ 'method' => 'POST',
+ 'timeout' => 120,
+ 'headers' => array(
+ 'Content-Type' => 'application/json',
+ ),
+ 'body' => wp_json_encode(
+ array(
+ 'room' => $room_id,
+ 'message' => $message,
+ )
+ ),
+ )
+ );
+
+ if ( is_wp_error( $response ) ) {
+ $error_message = $response->get_error_message();
+ error_log( __FUNCTION__ . "() error posting to matrix homeserver using thin client - $error_message" );
+ return false;
+ }
+ $status_code = wp_remote_retrieve_response_code( $response );
+ if ( 200 !== $status_code ) {
+ error_log( __FUNCTION__ . "() HTTP Error: $status_code - " . wp_remote_retrieve_body( $response ) );
+ return false;
+ }
+
+ return true;
+ }
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/api.wordpress.org/public_html/dotorg/matrix/poster.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
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<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
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