365 lines
13 KiB
PHP
365 lines
13 KiB
PHP
<?php
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/**
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* Data class to mark notices as bookmarks
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*
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* PHP version 5
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*
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* @category Data
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2009, StatusNet, Inc.
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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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if (!defined('GNUSOCIAL')) { exit(1); }
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/**
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* For storing the fact that a notice is a bookmark
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*
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* @category Bookmark
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* @see DB_DataObject
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*/
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class Bookmark extends Managed_DataObject
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{
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public $__table = 'bookmark'; // table name
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public $id; // char(36) primary_key not_null
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public $profile_id; // int(4) not_null
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public $url; // varchar(191) not_null not 255 because utf8mb4 takes more space
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public $title; // varchar(191) not 255 because utf8mb4 takes more space
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public $uri; // varchar(191) not 255 because utf8mb4 takes more space
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public $description; // text
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public $created; // datetime
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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' => 'char',
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'length' => 36,
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'not null' => true),
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'profile_id' => array('type' => 'int', 'not null' => true),
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'uri' => array('type' => 'varchar',
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'length' => 191,
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'not null' => true),
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'url' => array('type' => 'varchar',
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'length' => 191,
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'not null' => true),
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'title' => array('type' => 'varchar', 'length' => 191),
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'description' => array('type' => 'text'),
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'created' => array('type' => 'datetime', 'not null' => true),
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),
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'primary key' => array('uri'),
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'unique keys' => array(
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'bookmark_id_key' => array('id'),
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),
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'foreign keys' => array(
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'bookmark_profile_id_fkey' => array('profile', array('profile_id' => 'id')),
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'bookmark_uri_fkey' => array('notice', array('uri' => 'uri')),
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),
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'indexes' => array('bookmark_created_idx' => array('created'),
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'bookmark_url_idx' => array('url'),
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'bookmark_profile_id_idx' => array('profile_id'),
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),
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);
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}
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/**
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* Get a bookmark based on a notice
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*
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* @param Notice $stored Notice activity which represents the Bookmark
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*
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* @return Bookmark The found bookmark object.
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* @throws NoResultException When you don't find it after all.
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*/
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static public function fromStored(Notice $stored)
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{
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return self::getByPK(array('uri' => $stored->getUri()));
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}
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public function getStored()
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{
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return Notice::getByKeys(array('uri' => $this->getUri()));
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}
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public function getDescription()
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{
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return $this->description;
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}
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public function getTitle()
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{
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return $this->title;
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}
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public function getUri()
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{
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return $this->uri;
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}
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public function getUrl()
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{
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if (empty($this->url)) {
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throw new InvalidUrlException($this->url);
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}
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return $this->url;
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}
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/**
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* Get the bookmark that a user made for an URL
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*
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* @param Profile $profile Profile to check for
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* @param string $url URL to check for
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*
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* @return Bookmark bookmark found or null
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*/
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static function getByURL(Profile $profile, $url)
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{
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$nb = new Bookmark();
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$nb->profile_id = $profile->getID();
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$nb->url = $url;
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if (!$nb->find(true)) {
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throw new NoResultException($nb);
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}
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return $nb;
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}
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/**
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* Store a Bookmark object
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*
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* @param Profile $profile To save the bookmark for
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* @param string $title Title of the bookmark
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* @param string $url URL of the bookmark
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* @param string $description Description of the bookmark
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*
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* @return Bookmark the Bookmark object
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*/
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static function saveActivityObject(ActivityObject $actobj, Notice $stored)
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{
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$url = null;
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// each extra element is array('tagname', array('attr'=>'val', ...), 'content')
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foreach ($actobj->extra as $extra) {
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if ($extra[0] !== ActivityUtils::LINK || $extra[1][ActivityUtils::REL] !== 'related') {
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continue;
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}
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if ($url===null && strlen($extra[1][ActivityUtils::HREF])>0) {
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$url = $extra[1][ActivityUtils::HREF];
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} elseif ($url !== null) {
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// TRANS: Client exception thrown when a bookmark is formatted incorrectly.
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throw new ClientException(sprintf(_m('Expected exactly 1 link rel=related in a Bookmark, got more than that.')));
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}
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}
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if (is_null($url)) {
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// TRANS: Client exception thrown when a bookmark is formatted incorrectly.
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throw new ClientException(sprintf(_m('Expected exactly 1 link rel=related in a Bookmark, got 0.')));
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}
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if (!strlen($actobj->title)) {
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throw new ClientException(_m('You must provide a non-empty title.'));
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}
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if (!common_valid_http_url($url)) {
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throw new ClientException(_m('Only web bookmarks can be posted (HTTP or HTTPS).'));
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}
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try {
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$object = self::getByURL($stored->getProfile(), $url);
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throw new ClientException(_m('You have already bookmarked this URL.'));
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} catch (NoResultException $e) {
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// Alright, so then we have to create it.
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}
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$nb = new Bookmark();
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$nb->id = UUID::gen();
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$nb->uri = $stored->getUri();
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$nb->profile_id = $stored->getProfile()->getID();
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$nb->title = $actobj->title;
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$nb->url = $url;
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$nb->description = $actobj->summary;
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$nb->created = $stored->created;
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$result = $nb->insert();
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if ($result === false) {
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throw new ServerException('Could not insert Bookmark into database!');
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}
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return $nb;
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}
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public function asActivityObject()
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{
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$stored = $this->getStored();
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$object = new ActivityObject();
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$object->id = $this->getUri();
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$object->type = ActivityObject::BOOKMARK;
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$object->title = $this->getTitle();
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$object->summary = $this->getDescription();
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$object->link = $stored->getUrl();
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$object->content = $stored->getRendered();
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// Attributes of the URL
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$attachments = $stored->attachments();
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if (count($attachments) != 1) {
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// TRANS: Server exception thrown when a bookmark has multiple attachments.
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throw new ServerException(_m('Bookmark notice with the '.
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'wrong number of attachments.'));
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}
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$bookmarkedurl = $attachments[0];
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$attrs = array('rel' => 'related',
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'href' => $bookmarkedurl->getUrl());
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if (!strlen($bookmarkedurl->title)) {
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$attrs['title'] = $bookmarkedurl->title;
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}
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$object->extra[] = array('link', $attrs, null);
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// Attributes of the thumbnail, if any
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try {
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$thumbnail = $bookmarkedurl->getThumbnail();
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$tattrs = array('rel' => 'preview',
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'href' => $thumbnail->getUrl());
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if (!empty($thumbnail->width)) {
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$tattrs['media:width'] = $thumbnail->width;
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}
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if (!empty($thumbnail->height)) {
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$tattrs['media:height'] = $thumbnail->height;
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}
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$object->extra[] = array('link', $tattrs, null);
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} catch (UnsupportedMediaException $e) {
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// No image thumbnail metadata available
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}
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return $object;
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}
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/**
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* Save a new notice bookmark
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*
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* @param Profile $profile To save the bookmark for
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* @param string $title Title of the bookmark
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* @param string $url URL of the bookmark
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* @param array $rawtags array of tags
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* @param string $description Description of the bookmark
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* @param array $options Options for the Notice::saveNew()
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*
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* @return Notice saved notice
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*/
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static function addNew(Profile $actor, $title, $url, array $rawtags, $description, array $options=array())
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{
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$act = new Activity();
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$act->verb = ActivityVerb::POST;
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$act->time = time();
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$act->actor = $actor->asActivityObject();
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$actobj = new ActivityObject();
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$actobj->type = ActivityObject::BOOKMARK;
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$actobj->title = $title;
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$actobj->summary = $description;
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$actobj->extra[] = array('link', array('rel'=>'related', 'href'=>$url), null);
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$act->objects[] = $actobj;
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$act->enclosures[] = $url;
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$tags = array();
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$replies = array();
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// filter "for:nickname" tags
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foreach ($rawtags as $tag) {
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if (strtolower(mb_substr($tag, 0, 4)) == 'for:') {
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// skip if done by caller
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if (!array_key_exists('replies', $options)) {
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$nickname = mb_substr($tag, 4);
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$other = common_relative_profile($actor, $nickname);
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if (!empty($other)) {
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$replies[] = $other->getUri();
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}
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}
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} else {
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$tags[] = common_canonical_tag($tag);
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}
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}
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$hashtags = array();
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$taglinks = array();
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foreach ($tags as $tag) {
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$hashtags[] = '#'.$tag;
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$attrs = array('href' => Notice_tag::url($tag),
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'rel' => $tag,
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'class' => 'tag');
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$taglinks[] = XMLStringer::estring('a', $attrs, $tag);
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}
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// Use user's preferences for short URLs, if possible
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// FIXME: Should be possible to with the Profile object...
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try {
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$user = $actor->getUser();
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$shortUrl = File_redirection::makeShort($url, empty($user) ? null : $user);
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} catch (Exception $e) {
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// Don't let this stop us.
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$shortUrl = $url;
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}
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// TRANS: Rendered bookmark content.
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// TRANS: %1$s is a URL, %2$s the bookmark title, %3$s is the bookmark description,
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// TRANS: %4$s is space separated list of hash tags.
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$actobj->content = sprintf(_m('<span class="xfolkentry">'.
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'<a class="taggedlink" href="%1$s">%2$s</a> '.
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'<span class="description">%3$s</span> '.
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'<span class="meta">%4$s</span>'.
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'</span>'),
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htmlspecialchars($url),
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htmlspecialchars($title),
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htmlspecialchars($description),
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implode(' ', $taglinks));
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foreach ($tags as $term) {
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$catEl = new AtomCategory();
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$catEl->term = $term;
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$activity->categories[] = $catEl;
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}
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$options = array_merge(array('urls' => array($url),
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'rendered' => $rendered,
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'tags' => $tags,
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'replies' => $replies,
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'object_type' => ActivityObject::BOOKMARK),
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$options);
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return Notice::saveActivity($act, $actor, $options);
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}
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}
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