forked from GNUsocial/gnu-social
111 lines
3.4 KiB
PHP
111 lines
3.4 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 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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* @fixme pass through the actor for signing?
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*
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* @param string $endpoint_uri
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* @param string $xml
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* @return boolean success
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*/
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public function post($endpoint_uri, $xml, $actor)
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{
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if (empty($endpoint_uri)) {
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return false;
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}
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try {
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$xml = $this->createMagicEnv($xml, $actor);
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} catch (Exception $e) {
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common_log(LOG_ERR, "Salmon unable to sign: " . $e->getMessage());
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return false;
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}
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$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($xml);
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$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: " . $e->getMessage());
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return false;
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}
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if ($response->getStatus() != 200) {
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common_log(LOG_ERR, "Salmon at $endpoint_uri returned status " .
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$response->getStatus() . ': ' . $response->getBody());
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return false;
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}
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return true;
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}
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public function createMagicEnv($text, $actor)
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{
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$magic_env = new MagicEnvelope();
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$user = User::staticGet('id', $actor->id);
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if ($user->id) {
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// Use local key
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$magickey = Magicsig::staticGet('user_id', $user->id);
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if (!$magickey) {
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// No keypair yet, let's generate one.
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$magickey = new Magicsig();
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$magickey->generate($user->id);
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}
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} else {
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throw new Exception("Salmon invalid actor for signing");
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}
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try {
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$env = $magic_env->signMessage($text, 'application/atom+xml', $magickey->toString());
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} catch (Exception $e) {
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return $text;
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}
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return $magic_env->toXML($env);
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}
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public function verifyMagicEnv($text)
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{
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$magic_env = new MagicEnvelope();
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$env = $magic_env->parse($text);
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return $magic_env->verify($env);
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}
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}
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