forked from GNUsocial/gnu-social
		
	Attachment_ajaxAction has been removed since AttachmentAction handles AJAX calls splendidly.
		
			
				
	
	
		
			257 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			257 lines
		
	
	
		
			8.9 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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|  * widget for displaying a list of notice attachments
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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  UI
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|  * @package   StatusNet
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|  * @author    Evan Prodromou <evan@status.net>
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|  * @author    Sarven Capadisli <csarven@status.net>
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|  * @copyright 2008 StatusNet, Inc.
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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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| 
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| if (!defined('GNUSOCIAL')) { exit(1); }
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| 
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| /**
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|  * widget for displaying a single notice
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|  *
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|  * This widget has the core smarts for showing a single notice: what to display,
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|  * where, and under which circumstances. Its key method is show(); this is a recipe
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|  * that calls all the other show*() methods to build up a single notice. The
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|  * ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip
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|  * author info (since that's implicit by the data in the page).
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|  *
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|  * @category UI
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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-3.0.html GNU Affero General Public License version 3.0
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|  * @link     http://status.net/
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|  * @see      NoticeList
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|  * @see      ProfileNoticeListItem
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|  */
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| class AttachmentListItem extends Widget
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| {
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|     /** The attachment this item will show. */
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| 
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|     var $attachment = null;
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| 
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|     /**
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|      * @param File $attachment the attachment we will display
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|      */
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|     function __construct(File $attachment, $out=null)
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|     {
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|         parent::__construct($out);
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|         $this->attachment  = $attachment;
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|     }
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| 
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|     function title() {
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|         return $this->attachment->title ?: $this->attachment->filename;
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|     }
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| 
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|     function linkTitle() {
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|         return $this->title();
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|     }
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| 
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|     /**
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|      * recipe function for displaying a single notice.
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|      *
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|      * This uses all the other methods to correctly display a notice. Override
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|      * it or one of the others to fine-tune the output.
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|      *
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|      * @return void
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|      */
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|     function show()
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|     {
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|         $this->showStart();
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|         $this->showNoticeAttachment();
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|         $this->showEnd();
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|     }
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| 
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|     function linkAttr() {
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|         return array('class' => 'attachment',
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|                      'href' => $this->attachment->getUrl(),
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|                      'id' => 'attachment-' . $this->attachment->id,
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|                      'title' => $this->linkTitle());
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|     }
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| 
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|     function showLink() {
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|         $this->out->elementStart('a', $this->linkAttr());
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|         $this->out->element('span', null, $this->linkTitle());
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|         $this->showRepresentation();
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|         $this->out->elementEnd('a');
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|     }
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| 
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|     function showNoticeAttachment()
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|     {
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|         $this->showLink();
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|     }
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| 
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|     function showRepresentation() {
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|         if (Event::handle('StartShowAttachmentRepresentation', array($this->out, $this->attachment))) {
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|             if (!empty($this->attachment->mimetype)) {
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|                 switch ($this->attachment->mimetype) {
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|                 case 'image/gif':
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|                 case 'image/png':
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|                 case 'image/jpg':
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|                 case 'image/jpeg':
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|                     try {
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|                         $thumb = $this->attachment->getThumbnail();
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|                         $this->out->element('img', array('src' => $thumb->getUrl(), 'alt' => ''));
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|                     } catch (UnsupportedMediaException $e) {
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|                         // FIXME: Show a good representation of unsupported/unshowable images
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|                     }
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|                     break;
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| 
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|                 case 'application/ogg':
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|                     $arr  = array('type' => $this->attachment->mimetype,
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|                         'data' => $this->attachment->url,
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|                         'width' => 320,
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|                         'height' => 240
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|                     );
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|                     $this->out->elementStart('object', $arr);
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|                     $this->out->element('param', array('name' => 'src', 'value' => $this->attachment->url));
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|                     $this->out->element('param', array('name' => 'autoStart', 'value' => 1));
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|                     $this->out->elementEnd('object');
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|                     break;
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| 
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|                 case 'audio/ogg':
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|                 case 'audio/x-speex':
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|                 case 'video/mpeg':
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|                 case 'audio/mpeg':
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|                 case 'video/mp4':
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|                 case 'video/ogg':
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|                 case 'video/quicktime':
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|                 case 'video/webm':
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|                     $mediatype = common_get_mime_media($this->attachment->mimetype);
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|                     try {
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|                         $thumb = $this->attachment->getThumbnail();
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|                         $poster = $thumb->getUrl();
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|                         unset ($thumb);
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|                     } catch (Exception $e) {
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|                         $poster = null;
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|                     }
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|                     $this->out->elementStart($mediatype,
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|                                         array('class'=>'attachment_player',
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|                                             'poster'=>$poster,
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|                                             'controls'=>'controls'));
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|                     $this->out->element('source',
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|                                         array('src'=>$this->attachment->url,
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|                                             'type'=>$this->attachment->mimetype));
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|                     $this->out->elementEnd($mediatype);
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|                     break;
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| 
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|                 case 'text/html':
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|                     if (!empty($this->attachment->filename)
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|                             && (StatusNet::isAjax() || common_config('attachments', 'show_html'))) {
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|                         // Locally-uploaded HTML. Scrub and display inline.
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|                         $this->showHtmlFile($this->attachment);
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|                         break;
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|                     }
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|                     // Fall through to default.
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| 
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|                 default:
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|                     Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment));
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|                 }
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|             } else {
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|                 Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment));
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|             }
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|         }
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|         Event::handle('EndShowAttachmentRepresentation', array($this->out, $this->attachment));
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|     }
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| 
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|     protected function showHtmlFile(File $attachment)
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|     {
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|         $body = $this->scrubHtmlFile($attachment);
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|         if ($body) {
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|             $this->out->raw($body);
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|         }
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|     }
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| 
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|     /**
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|      * @return mixed false on failure, HTML fragment string on success
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|      */
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|     protected function scrubHtmlFile(File $attachment)
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|     {
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|         $path = File::path($attachment->filename);
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|         if (!file_exists($path) || !is_readable($path)) {
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|             common_log(LOG_ERR, "Missing local HTML attachment $path");
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|             return false;
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|         }
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|         $raw = file_get_contents($path);
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| 
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|         // Normalize...
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|         $dom = new DOMDocument();
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|         if(!$dom->loadHTML($raw)) {
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|             common_log(LOG_ERR, "Bad HTML in local HTML attachment $path");
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|             return false;
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|         }
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| 
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|         // Remove <script>s or htmlawed will dump their contents into output!
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|         // Note: removing child nodes while iterating seems to mess things up,
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|         // hence the double loop.
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|         $scripts = array();
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|         foreach ($dom->getElementsByTagName('script') as $script) {
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|             $scripts[] = $script;
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|         }
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|         foreach ($scripts as $script) {
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|             common_log(LOG_DEBUG, $script->textContent);
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|             $script->parentNode->removeChild($script);
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|         }
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| 
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|         // Trim out everything outside the body...
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|         $body = $dom->saveHTML();
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|         $body = preg_replace('/^.*<body[^>]*>/is', '', $body);
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|         $body = preg_replace('/<\/body[^>]*>.*$/is', '', $body);
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| 
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|         require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
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|         $config = array('safe' => 1,
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|                         'deny_attribute' => 'id,style,on*',
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|                         'comment' => 1); // remove comments
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|         $scrubbed = htmLawed($body, $config);
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| 
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|         return $scrubbed;
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|     }
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| 
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|     /**
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|      * start a single notice.
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|      *
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|      * @return void
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|      */
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|     function showStart()
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|     {
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|         // XXX: RDFa
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|         // TODO: add notice_type class e.g., notice_video, notice_image
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|         $this->out->elementStart('li');
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|     }
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| 
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|     /**
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|      * finish the notice
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|      *
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|      * Close the last elements in the notice list item
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|      *
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|      * @return void
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|      */
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|     function showEnd()
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|     {
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|         $this->out->elementEnd('li');
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|     }
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| }
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