f1c4c64cd9
This would overwrite remote URLs with local verisons which removes source href... The reason one might have filenames for remote URLs is that StoreRemoteMedia plugin fetches them and uses the filename field.
249 lines
9.0 KiB
PHP
249 lines
9.0 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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if (!defined('GNUSOCIAL')) { exit(1); }
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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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var $attachment = null;
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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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function title() {
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return $this->attachment->getTitle();
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}
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function linkTitle() {
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return $this->title();
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}
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/**
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* recipe function for displaying a single notice.
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*
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* This uses all the other methods to correctly display a notice. Override
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* it or one of the others to fine-tune the output.
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*
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* @return void
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*/
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function show()
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{
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$this->showStart();
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$this->showNoticeAttachment();
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$this->showEnd();
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}
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function linkAttr() {
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return array('class' => 'attachment',
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'href' => $this->attachment->getUrl(false),
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'id' => 'attachment-' . $this->attachment->id,
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'title' => $this->linkTitle());
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}
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function showLink() {
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$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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$this->out->elementEnd('a');
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}
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function showNoticeAttachment()
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{
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$this->showLink();
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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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$mediatype = common_get_mime_media($this->attachment->mimetype);
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// FIXME: Get proper mime recognition of Ogg files! If system has 'mediainfo', this should do it:
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// $ mediainfo --inform='General;%InternetMediaType%'
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if ($this->attachment->mimetype === 'application/ogg') {
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$mediatype = 'video'; // because this element can handle Ogg/Vorbis etc. on its own
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}
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switch ($mediatype) {
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// Anything we understand as an image, if we need special treatment, do it in StartShowAttachmentRepresentation
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case 'image':
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try {
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// Tell getThumbnail that we can show an animated image if it has one (4th arg, "force_still")
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$thumb = $this->attachment->getThumbnail(null, null, false, false);
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$this->out->element('img', $thumb->getHtmlAttrs(['class'=>'u-photo', 'alt' => '']));
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} catch (UseFileAsThumbnailException $e) {
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$this->out->element('img', array('class'=>'u-photo', 'src' => $e->file->getUrl(), 'alt' => $e->file->title));
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} catch (UnsupportedMediaException $e) {
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// FIXME: Show a good representation of unsupported/unshowable images
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}
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break;
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// HTML5 media elements
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case 'audio':
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case 'video':
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try {
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$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 u-{$mediatype}",
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'poster'=>$poster,
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'controls'=>'controls'));
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$this->out->element('source',
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array('src'=>$this->attachment->getUrl(),
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'type'=>$this->attachment->mimetype));
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$this->out->elementEnd($mediatype);
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break;
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default:
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switch ($this->attachment->mimetype) {
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case 'text/html':
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if (!empty($this->attachment->filename)
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&& (GNUsocial::isAjax() || common_config('attachments', 'show_html'))) {
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// Locally-uploaded HTML. Scrub and display inline.
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$this->showHtmlFile($this->attachment);
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break;
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}
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// Fall through to default if it wasn't a _local_ text/html File object
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default:
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Event::handle('ShowUnsupportedAttachmentRepresentation', array($this->out, $this->attachment));
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}
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}
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} else {
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Event::handle('ShowUnsupportedAttachmentRepresentation', array($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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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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* @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($path);
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// Normalize...
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$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 $path");
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return false;
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}
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// Remove <script>s or htmlawed will dump their contents into output!
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// Note: removing child nodes while iterating seems to mess things up,
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// hence the double loop.
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$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($script);
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}
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// Trim out everything outside the body...
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$body = $dom->saveHTML();
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$body = preg_replace('/^.*<body[^>]*>/is', '', $body);
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$body = preg_replace('/<\/body[^>]*>.*$/is', '', $body);
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require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
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$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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return $scrubbed;
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}
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/**
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* start a single notice.
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*
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* @return void
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*/
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function showStart()
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{
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// XXX: RDFa
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// TODO: add notice_type class e.g., notice_video, notice_image
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$this->out->elementStart('li');
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}
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/**
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* 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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