<?php /** * StatusNet, the distributed open-source microblogging tool * * widget for displaying a list of notice attachments * * PHP version 5 * * LICENCE: 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 UI * @package StatusNet * @author Evan Prodromou <evan@status.net> * @author Sarven Capadisli <csarven@status.net> * @copyright 2008 StatusNet, Inc. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://status.net/ */ if (!defined('GNUSOCIAL')) { exit(1); } /** * widget for displaying a single notice * * This widget has the core smarts for showing a single notice: what to display, * where, and under which circumstances. Its key method is show(); this is a recipe * that calls all the other show*() methods to build up a single notice. The * ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip * author info (since that's implicit by the data in the page). * * @category UI * @package StatusNet * @author Evan Prodromou <evan@status.net> * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://status.net/ * @see NoticeList * @see ProfileNoticeListItem */ class AttachmentListItem extends Widget { /** The attachment this item will show. */ var $attachment = null; /** * @param File $attachment the attachment we will display */ function __construct(File $attachment, $out=null) { parent::__construct($out); $this->attachment = $attachment; } function title() { return $this->attachment->getTitle(); } function linkTitle() { return $this->title(); } /** * recipe function for displaying a single notice. * * This uses all the other methods to correctly display a notice. Override * it or one of the others to fine-tune the output. * * @return void */ function show() { $this->showStart(); $this->showNoticeAttachment(); $this->showEnd(); } function linkAttr() { return array('class' => 'attachment', 'href' => $this->attachment->getUrl(), 'id' => 'attachment-' . $this->attachment->id, 'title' => $this->linkTitle()); } function showLink() { $this->out->elementStart('a', $this->linkAttr()); $this->out->element('span', null, $this->linkTitle()); $this->showRepresentation(); $this->out->elementEnd('a'); } function showNoticeAttachment() { $this->showLink(); } function showRepresentation() { if (Event::handle('StartShowAttachmentRepresentation', array($this->out, $this->attachment))) { if (!empty($this->attachment->mimetype)) { switch ($this->attachment->mimetype) { case 'image/gif': case 'image/png': case 'image/jpg': case 'image/jpeg': try { // Tell getThumbnail that we can show an animated image if it has one (4th arg, "force_still") $thumb = $this->attachment->getThumbnail(null, null, false, false); $this->out->element('img', array('class'=>'u-photo', 'src' => $thumb->getUrl(), 'alt' => '')); } catch (UseFileAsThumbnailException $e) { $this->out->element('img', array('class'=>'u-photo', 'src' => $e->file->getUrl(), 'alt' => $e->file->title)); } catch (UnsupportedMediaException $e) { // FIXME: Show a good representation of unsupported/unshowable images } break; case 'application/ogg': $arr = array('type' => $this->attachment->mimetype, 'data' => $this->attachment->url, 'width' => 320, 'height' => 240 ); $this->out->elementStart('object', $arr); $this->out->element('param', array('name' => 'src', 'value' => $this->attachment->url)); $this->out->element('param', array('name' => 'autoStart', 'value' => 1)); $this->out->elementEnd('object'); break; case 'audio/ogg': case 'audio/x-speex': case 'video/mpeg': case 'audio/mpeg': case 'video/mp4': case 'video/ogg': case 'video/quicktime': case 'video/webm': $mediatype = common_get_mime_media($this->attachment->mimetype); try { $thumb = $this->attachment->getThumbnail(); $poster = $thumb->getUrl(); unset ($thumb); } catch (Exception $e) { $poster = null; } $this->out->elementStart($mediatype, array('class'=>"attachment_player u-{$mediatype}", 'poster'=>$poster, 'controls'=>'controls')); $this->out->element('source', array('src'=>$this->attachment->url, 'type'=>$this->attachment->mimetype)); $this->out->elementEnd($mediatype); break; case 'text/html': if (!empty($this->attachment->filename) && (StatusNet::isAjax() || common_config('attachments', 'show_html'))) { // Locally-uploaded HTML. Scrub and display inline. $this->showHtmlFile($this->attachment); break; } // Fall through to default. default: Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment)); } } else { Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment)); } } Event::handle('EndShowAttachmentRepresentation', array($this->out, $this->attachment)); } protected function showHtmlFile(File $attachment) { $body = $this->scrubHtmlFile($attachment); if ($body) { $this->out->raw($body); } } /** * @return mixed false on failure, HTML fragment string on success */ protected function scrubHtmlFile(File $attachment) { $path = File::path($attachment->filename); if (!file_exists($path) || !is_readable($path)) { common_log(LOG_ERR, "Missing local HTML attachment $path"); return false; } $raw = file_get_contents($path); // Normalize... $dom = new DOMDocument(); if(!$dom->loadHTML($raw)) { common_log(LOG_ERR, "Bad HTML in local HTML attachment $path"); return false; } // Remove <script>s or htmlawed will dump their contents into output! // Note: removing child nodes while iterating seems to mess things up, // hence the double loop. $scripts = array(); foreach ($dom->getElementsByTagName('script') as $script) { $scripts[] = $script; } foreach ($scripts as $script) { common_log(LOG_DEBUG, $script->textContent); $script->parentNode->removeChild($script); } // Trim out everything outside the body... $body = $dom->saveHTML(); $body = preg_replace('/^.*<body[^>]*>/is', '', $body); $body = preg_replace('/<\/body[^>]*>.*$/is', '', $body); require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php'; $config = array('safe' => 1, 'deny_attribute' => 'id,style,on*', 'comment' => 1); // remove comments $scrubbed = htmLawed($body, $config); return $scrubbed; } /** * start a single notice. * * @return void */ function showStart() { // XXX: RDFa // TODO: add notice_type class e.g., notice_video, notice_image $this->out->elementStart('li'); } /** * finish the notice * * Close the last elements in the notice list item * * @return void */ function showEnd() { $this->out->elementEnd('li'); } }