e0d0a59706
This means we import the URI string from remote instances to track their conversations and are able to stitch together replies in a single thread. We might have to try to avoid collisions so noone remotely can predict conversation URIs which we generate on our server, causing a DoS kind of problem.
137 lines
4.9 KiB
PHP
137 lines
4.9 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Data class for Conversations
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*
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* PHP version 5
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*
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* LICENCE: 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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* @category Data
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @copyright 2010 StatusNet Inc.
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* @copyright 2009-2014 Free Software Foundation, Inc http://www.fsf.org
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('GNUSOCIAL')) { exit(1); }
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class Conversation extends Managed_DataObject
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{
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public $__table = 'conversation'; // table name
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public $id; // int(4) primary_key not_null
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public $uri; // varchar(255) unique_key
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public $created; // datetime not_null
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public $modified; // timestamp not_null default_CURRENT_TIMESTAMP
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public static function schemaDef()
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{
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return array(
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'fields' => array(
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'id' => array('type' => 'int', 'not null' => true, 'description' => 'should be set from root notice id (since 2014-03-01 commit)'),
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'uri' => array('type' => 'varchar', 'not null'=>true, 'length' => 255, 'description' => 'URI of the conversation'),
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'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
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'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
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),
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'primary key' => array('id'),
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'unique keys' => array(
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'conversation_uri_key' => array('uri'),
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),
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);
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}
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/**
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* Factory method for creating a new conversation.
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*
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* Use this for locally initiated conversations. Remote notices should
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* preferrably supply their own conversation URIs in the OStatus feed.
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*
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* @return Conversation the new conversation DO
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*/
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static function create(Notice $notice, $uri=null)
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{
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if (empty($notice->id)) {
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throw new ServerException(_('Tried to create conversation for not yet inserted notice'));
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}
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$conv = new Conversation();
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$conv->created = common_sql_now();
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$conv->id = $notice->id;
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$conv->uri = $uri ?: sprintf('%s%s=%d:%s=%s',
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TagURI::mint(),
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'noticeId', $notice->id,
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'objectType', 'thread');
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$result = $conv->insert();
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if ($result === false) {
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common_log_db_error($conv, 'INSERT', __FILE__);
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throw new ServerException(_('Failed to create conversation for notice'));
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}
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return $conv;
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}
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static function noticeCount($id)
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{
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$keypart = sprintf('conversation:notice_count:%d', $id);
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$cnt = self::cacheGet($keypart);
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if ($cnt !== false) {
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return $cnt;
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}
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$notice = new Notice();
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$notice->conversation = $id;
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$notice->whereAddIn('verb', array(ActivityVerb::POST, ActivityUtils::resolveUri(ActivityVerb::POST, true)), $notice->columnType('verb'));
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$cnt = $notice->count();
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self::cacheSet($keypart, $cnt);
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return $cnt;
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}
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static public function getUrlFromNotice(Notice $notice, $anchor=true)
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{
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$conv = self::getKV('id', $notice->conversation);
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return $conv->getUrl($anchor ? $notice->id : null);
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}
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public function getUri()
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{
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return $this->uri;
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}
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public function getUrl($noticeId=null)
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{
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// FIXME: the URL router should take notice-id as an argument...
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return common_local_url('conversation', array('id' => $this->id)) .
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($noticeId===null ? '' : "#notice-{$noticeId}");
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}
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// FIXME: ...will 500 ever be too low? Taken from ConversationAction::MAX_NOTICES
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public function getNotices($offset=0, $limit=500, Profile $scoped=null)
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{
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if ($scoped === null) {
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$scoped = Profile::current();
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}
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$stream = new ConversationNoticeStream($this->id, $scoped);
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$notices = $stream->getNotices($offset, $limit);
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return $notices;
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}
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}
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