forked from GNUsocial/gnu-social
99 lines
3.9 KiB
PHP
99 lines
3.9 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2010, StatusNet, Inc.
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*
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* A sample module to show best practices for StatusNet plugins
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @package StatusNet
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* @author James Walker <james@status.net>
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* @copyright 2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class Salmon
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{
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const REL_SALMON = 'salmon';
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const REL_MENTIONED = 'mentioned';
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// XXX: these are deprecated
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const NS_REPLIES = "http://salmon-protocol.org/ns/salmon-replies";
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const NS_MENTIONS = "http://salmon-protocol.org/ns/salmon-mention";
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/**
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* Sign and post the given Atom entry as a Salmon message.
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*
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* Side effects: may generate a keypair on-demand for the given user,
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* which can be very slow on some systems (like those without php5-gmp).
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*
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* @param string $endpoint_uri
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* @param string $xml string representation of payload
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* @param User $user local user profile whose keys we sign with
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* @return boolean success
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*/
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public static function post($endpoint_uri, $xml, User $user)
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{
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if (empty($endpoint_uri)) {
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common_debug('No endpoint URI for Salmon post to '.$user->getUri());
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return false;
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}
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try {
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$magic_env = MagicEnvelope::signAsUser($xml, $user);
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} catch (Exception $e) {
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common_log(LOG_ERR, "Salmon unable to sign: " . $e->getMessage());
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return false;
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}
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$envxml = $magic_env->toXML();
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$headers = array('Content-Type: application/magic-envelope+xml');
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try {
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$client = new HTTPClient();
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$client->setBody($envxml);
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$response = $client->post($endpoint_uri, $headers);
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} catch (HTTP_Request2_Exception $e) {
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common_log(LOG_ERR, "Salmon post to $endpoint_uri failed: " . $e->getMessage());
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return false;
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}
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// Diaspora wants a slightly different formatting on the POST (other Content-type, so body needs "xml=")
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// This also gives us the opportunity to send the specially formatted Diaspora salmon slap, which
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// encrypts the content of me:data
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if ($response->getStatus() === 422) {
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common_debug(sprintf('Salmon (from profile %d) endpoint %s returned status %s. We assume it is a Diaspora seed, will adapt and try again! Body: %s',
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$user->id, $endpoint_uri, $response->getStatus(), $response->getBody()));
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$headers = array('Content-Type: application/x-www-form-urlencoded');
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$client->setBody('xml=' . Magicsig::base64_url_encode($envxml));
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$response = $client->post($endpoint_uri, $headers);
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}
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// 200 OK is the best response
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// 202 Accepted is what we get from Diaspora for example
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if (!in_array($response->getStatus(), array(200, 202))) {
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common_log(LOG_ERR, sprintf('Salmon (from profile %d) endpoint %s returned status %s: %s',
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$user->id, $endpoint_uri, $response->getStatus(), $response->getBody()));
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return false;
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}
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// Success!
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return true;
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}
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}
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