gnu-social/plugins/OStatus/lib/salmon.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* A sample plugin to show best practices for StatusNet plugins
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*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @package StatusNet
* @author James Walker <james@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class Salmon
{
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const REL_SALMON = 'salmon';
const REL_MENTIONED = 'mentioned';
// XXX: these are deprecated
const NS_REPLIES = "http://salmon-protocol.org/ns/salmon-replies";
const NS_MENTIONS = "http://salmon-protocol.org/ns/salmon-mention";
/**
* Sign and post the given Atom entry as a Salmon message.
*
* Side effects: may generate a keypair on-demand for the given user,
* which can be very slow on some systems (like those without php5-gmp).
*
* @param string $endpoint_uri
* @param string $xml string representation of payload
* @param Profile $actor profile whose keys we sign with (must be a local user)
* @param Profile|null $target
* @return bool success
*/
public static function post(
$endpoint_uri,
$xml,
Profile $actor,
?Profile $target = null
) {
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if (empty($endpoint_uri)) {
common_debug('No endpoint URI for Salmon post to '.$actor->getUri());
return false;
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}
try {
$magic_env = MagicEnvelope::signAsUser($xml, $actor->getUser());
} catch (Exception $e) {
common_log(LOG_ERR, "Salmon unable to sign: " . $e->getMessage());
return false;
}
// $target is so far only used in Diaspora, so it can be null
if (Event::handle('SalmonSlap', array($endpoint_uri, $magic_env, $target))) {
return false;
//throw new ServerException('Could not distribute salmon slap as no plugin completed the event.');
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}
return true;
}
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}