gnu-social/plugins/Bookmark/BookmarkPlugin.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* A plugin to enable social-bookmarking functionality
*
* 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/>.
*
* @category SocialBookmark
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
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exit(1);
}
/**
* Bookmark plugin main class
*
* @category Bookmark
* @package StatusNet
* @author Brion Vibber <brionv@status.net>
* @author Evan Prodromou <evan@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 BookmarkPlugin extends MicroAppPlugin
{
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const VERSION = '0.1';
const IMPORTDELICIOUS = 'BookmarkPlugin:IMPORTDELICIOUS';
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/**
* Authorization for importing delicious bookmarks
*
* By default, everyone can import bookmarks except silenced people.
*
* @param Profile $profile Person whose rights to check
* @param string $right Right to check; const value
* @param boolean &$result Result of the check, writeable
*
* @return boolean hook value
*/
function onUserRightsCheck($profile, $right, &$result)
{
if ($right == self::IMPORTDELICIOUS) {
$result = !$profile->isSilenced();
return false;
}
return true;
}
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/**
* Database schema setup
*
* @see Schema
* @see ColumnDef
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onCheckSchema()
{
$schema = Schema::get();
// For storing user-submitted flags on profiles
$schema->ensureTable('bookmark',
array(new ColumnDef('id',
'char',
36,
false,
'PRI'),
new ColumnDef('profile_id',
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'integer',
null,
false,
'MUL'),
new ColumnDef('url',
'varchar',
255,
false,
'MUL'),
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new ColumnDef('title',
'varchar',
255),
new ColumnDef('description',
'text'),
new ColumnDef('uri',
'varchar',
255,
false,
'UNI'),
new ColumnDef('created',
'datetime',
null,
false,
'MUL')));
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return true;
}
/**
* Show the CSS necessary for this plugin
*
* @param Action $action the action being run
*
* @return boolean hook value
*/
function onEndShowStyles($action)
{
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$action->cssLink($this->path('bookmark.css'));
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return true;
}
function onEndShowScripts($action)
{
$action->script($this->path('js/bookmark.js'));
return true;
}
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/**
* Load related modules when needed
*
* @param string $cls Name of the class to be loaded
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onAutoload($cls)
{
$dir = dirname(__FILE__);
switch ($cls)
{
case 'ShowbookmarkAction':
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case 'NewbookmarkAction':
case 'BookmarkpopupAction':
case 'NoticebyurlAction':
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case 'BookmarkforurlAction':
case 'ImportdeliciousAction':
include_once $dir . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
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return false;
case 'Bookmark':
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include_once $dir.'/'.$cls.'.php';
return false;
case 'BookmarkListItem':
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case 'BookmarkForm':
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case 'InitialBookmarkForm':
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case 'DeliciousBackupImporter':
case 'DeliciousBookmarkImporter':
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include_once $dir.'/'.strtolower($cls).'.php';
return false;
default:
return true;
}
}
/**
* Map URLs to actions
*
* @param Net_URL_Mapper $m path-to-action mapper
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onRouterInitialized($m)
{
$m->connect('main/bookmark/new',
array('action' => 'newbookmark'),
array('id' => '[0-9]+'));
$m->connect('main/bookmark/popup',
array('action' => 'bookmarkpopup'));
$m->connect('main/bookmark/import',
array('action' => 'importdelicious'));
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$m->connect('main/bookmark/forurl',
array('action' => 'bookmarkforurl'));
$m->connect('bookmark/:id',
array('action' => 'showbookmark'),
array('id' => '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}'));
$m->connect('notice/by-url/:id',
array('action' => 'noticebyurl'),
array('id' => '[0-9]+'));
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return true;
}
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/**
* Add our two queue handlers to the queue manager
*
* @param QueueManager $qm current queue manager
*
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* @return boolean hook value
*/
function onEndInitializeQueueManager($qm)
{
$qm->connect('dlcsback', 'DeliciousBackupImporter');
$qm->connect('dlcsbkmk', 'DeliciousBookmarkImporter');
return true;
}
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/**
* Plugin version data
*
* @param array &$versions array of version data
*
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* @return value
*/
function onPluginVersion(&$versions)
{
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$versions[] = array('name' => 'Bookmark',
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'version' => self::VERSION,
'author' => 'Evan Prodromou',
'homepage' => 'http://status.net/wiki/Plugin:Bookmark',
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'description' =>
// TRANS: Plugin description.
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_m('Simple extension for supporting bookmarks.'));
return true;
}
/**
* Load our document if requested
*
* @param string &$title Title to fetch
* @param string &$output HTML to output
*
* @return boolean hook value
*/
function onStartLoadDoc(&$title, &$output)
{
if ($title == 'bookmarklet') {
$filename = INSTALLDIR.'/plugins/Bookmark/bookmarklet';
$c = file_get_contents($filename);
$output = common_markup_to_html($c);
return false; // success!
}
return true;
}
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/**
* Show a link to our delicious import page on profile settings form
*
* @param Action $action Profile settings action being shown
*
* @return boolean hook value
*/
function onEndProfileSettingsActions($action)
{
$user = common_current_user();
if (!empty($user) && $user->hasRight(self::IMPORTDELICIOUS)) {
$action->elementStart('li');
$action->element('a',
array('href' => common_local_url('importdelicious')),
// TRANS: Link text in proile leading to import form.
_m('Import del.icio.us bookmarks'));
$action->elementEnd('li');
}
return true;
}
/**
* Output our CSS class for bookmark notice list elements
*
* @param NoticeListItem $nli The item being shown
*
* @return boolean hook value
*/
function onStartOpenNoticeListItemElement($nli)
{
$nb = Bookmark::getByNotice($nli->notice);
if (!empty($nb)) {
$id = (empty($nli->repeat)) ? $nli->notice->id : $nli->repeat->id;
$class = 'hentry notice bookmark';
if ($nli->notice->scope != 0 && $nli->notice->scope != 1) {
$class .= ' limited-scope';
}
$nli->out->elementStart('li', array('class' => $class,
'id' => 'notice-' . $id));
Event::handle('EndOpenNoticeListItemElement', array($nli));
return false;
}
return true;
}
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/**
* Save a remote bookmark (from Salmon or PuSH)
*
* @param Ostatus_profile $author Author of the bookmark
* @param Activity $activity Activity to save
*
* @return Notice resulting notice.
*/
static private function _postRemoteBookmark(Ostatus_profile $author,
Activity $activity)
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{
$bookmark = $activity->objects[0];
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$options = array('uri' => $bookmark->id,
'url' => $bookmark->link,
'is_local' => Notice::REMOTE_OMB,
'source' => 'ostatus');
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return self::_postBookmark($author->localProfile(), $activity, $options);
}
/**
* Test if an activity represents posting a bookmark
*
* @param Activity $activity Activity to test
*
* @return true if it's a Post of a Bookmark, else false
*/
static private function _isPostBookmark($activity)
{
return ($activity->verb == ActivityVerb::POST &&
$activity->objects[0]->type == ActivityObject::BOOKMARK);
}
function types()
{
return array(ActivityObject::BOOKMARK);
}
/**
* When a notice is deleted, delete the related Bookmark
*
* @param Notice $notice Notice being deleted
*
* @return boolean hook value
*/
function deleteRelated($notice)
{
$nb = Bookmark::getByNotice($notice);
if (!empty($nb)) {
$nb->delete();
}
return true;
}
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/**
* Save a bookmark from an activity
*
* @param Activity $activity Activity to save
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* @param Profile $profile Profile to use as author
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* @param array $options Options to pass to bookmark-saving code
*
* @return Notice resulting notice
*/
function saveNoticeFromActivity($activity, $profile, $options=array())
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{
$bookmark = $activity->objects[0];
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$relLinkEls = ActivityUtils::getLinks($bookmark->element, 'related');
if (count($relLinkEls) < 1) {
// TRANS: Client exception thrown when a bookmark is formatted incorrectly.
throw new ClientException(_m('Expected exactly 1 link '.
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'rel=related in a Bookmark.'));
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}
if (count($relLinkEls) > 1) {
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common_log(LOG_WARNING,
"Got too many link rel=related in a Bookmark.");
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}
$linkEl = $relLinkEls[0];
$url = $linkEl->getAttribute('href');
$tags = array();
foreach ($activity->categories as $category) {
$tags[] = common_canonical_tag($category->term);
}
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if (!empty($activity->time)) {
$options['created'] = common_sql_date($activity->time);
}
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// Fill in location if available
$location = $activity->context->location;
if ($location) {
$options['lat'] = $location->lat;
$options['lon'] = $location->lon;
if ($location->location_id) {
$options['location_ns'] = $location->location_ns;
$options['location_id'] = $location->location_id;
}
}
$replies = $activity->context->attention;
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$options['groups'] = array();
$options['replies'] = array();
foreach ($replies as $replyURI) {
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$other = Profile::fromURI($replyURI);
if (!empty($other)) {
$options['replies'][] = $replyURI;
} else {
$group = User_group::staticGet('uri', $replyURI);
if (!empty($group)) {
$options['groups'][] = $replyURI;
}
}
}
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// Maintain direct reply associations
// @fixme what about conversation ID?
if (!empty($activity->context->replyToID)) {
$orig = Notice::staticGet('uri',
$activity->context->replyToID);
if (!empty($orig)) {
$options['reply_to'] = $orig->id;
}
}
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return Bookmark::saveNew($profile,
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$bookmark->title,
$url,
$tags,
$bookmark->summary,
$options);
}
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function activityObjectFromNotice($notice)
{
assert($this->isMyNotice($notice));
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common_log(LOG_INFO,
"Formatting notice {$notice->uri} as a bookmark.");
$object = new ActivityObject();
$nb = Bookmark::getByNotice($notice);
$object->id = $notice->uri;
$object->type = ActivityObject::BOOKMARK;
$object->title = $nb->title;
$object->summary = $nb->description;
$object->link = $notice->bestUrl();
// Attributes of the URL
$attachments = $notice->attachments();
if (count($attachments) != 1) {
// TRANS: Server exception thrown when a bookmark has multiple attachments.
throw new ServerException(_m('Bookmark notice with the '.
'wrong number of attachments.'));
}
$target = $attachments[0];
$attrs = array('rel' => 'related',
'href' => $target->url);
if (!empty($target->title)) {
$attrs['title'] = $target->title;
}
$object->extra[] = array('link', $attrs, null);
// Attributes of the thumbnail, if any
$thumbnail = $target->getThumbnail();
if (!empty($thumbnail)) {
$tattrs = array('rel' => 'preview',
'href' => $thumbnail->url);
if (!empty($thumbnail->width)) {
$tattrs['media:width'] = $thumbnail->width;
}
if (!empty($thumbnail->height)) {
$tattrs['media:height'] = $thumbnail->height;
}
$object->extra[] = array('link', $attrs, null);
}
return $object;
}
/**
* Given a notice list item, returns an adapter specific
* to this plugin.
*
* @param NoticeListItem $nli item to adapt
*
* @return NoticeListItemAdapter adapter or null
*/
function adaptNoticeListItem($nli)
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{
return new BookmarkListItem($nli);
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}
function entryForm($out)
{
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return new InitialBookmarkForm($out);
}
function tag()
{
return 'bookmark';
}
function appTitle()
{
// TRANS: Application title.
return _m('TITLE','Bookmark');
}
}