3 * StatusNet, the distributed open-source microblogging tool
5 * widget for displaying a list of notice attachments
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Evan Prodromou <evan@status.net>
25 * @author Sarven Capadisli <csarven@status.net>
26 * @copyright 2008 StatusNet, Inc.
27 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
28 * @link http://status.net/
31 if (!defined('STATUSNET') && !defined('LACONICA')) {
36 * widget for displaying a list of notice attachments
38 * There are a number of actions that display a list of notices, in
39 * reverse chronological order. This widget abstracts out most of the
40 * code for UI for notice lists. It's overridden to hide some
41 * data for e.g. the profile page.
45 * @author Evan Prodromou <evan@status.net>
46 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
47 * @link http://status.net/
50 * @see ProfileNoticeList
52 class AttachmentList extends Widget
54 /** the current stream of notices being displayed. */
61 * @param Notice $notice stream of notices from DB_DataObject
63 function __construct($notice, $out=null)
65 parent::__construct($out);
66 $this->notice = $notice;
70 * show the list of notices
72 * "Uses up" the stream by looping through it. So, probably can't
73 * be called twice on the same list.
75 * @return int count of notices listed.
80 $att = $atts->getAttachments($this->notice->id);
81 if (empty($att)) return 0;
82 $this->out->elementStart('dl', array('id' =>'attachments',
83 'class' => 'entry-content'));
84 // TRANS: DT element label in attachment list.
85 $this->out->element('dt', null, _('Attachments'));
86 $this->out->elementStart('dd');
87 $this->out->elementStart('ol', array('class' => 'attachments'));
89 foreach ($att as $n=>$attachment) {
90 $item = $this->newListItem($attachment);
94 $this->out->elementEnd('dd');
95 $this->out->elementEnd('ol');
96 $this->out->elementEnd('dl');
102 * returns a new list item for the current notice
104 * Recipe (factory?) method; overridden by sub-classes to give
105 * a different list item class.
107 * @param Notice $notice the current notice
109 * @return NoticeListItem a list item for displaying the notice
111 function newListItem($attachment)
113 return new AttachmentListItem($attachment, $this->out);
118 * widget for displaying a single notice
120 * This widget has the core smarts for showing a single notice: what to display,
121 * where, and under which circumstances. Its key method is show(); this is a recipe
122 * that calls all the other show*() methods to build up a single notice. The
123 * ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip
124 * author info (since that's implicit by the data in the page).
128 * @author Evan Prodromou <evan@status.net>
129 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
130 * @link http://status.net/
132 * @see ProfileNoticeListItem
134 class AttachmentListItem extends Widget
136 /** The attachment this item will show. */
138 var $attachment = null;
145 * Also initializes the profile attribute.
147 * @param Notice $notice The notice we'll display
149 function __construct($attachment, $out=null)
151 parent::__construct($out);
152 $this->attachment = $attachment;
153 $this->oembed = File_oembed::staticGet('file_id', $this->attachment->id);
157 if (empty($this->attachment->title)) {
158 if (empty($this->oembed->title)) {
159 $title = $this->attachment->url;
161 $title = $this->oembed->title;
164 $title = $this->attachment->title;
170 function linkTitle() {
171 return $this->title();
175 * recipe function for displaying a single notice.
177 * This uses all the other methods to correctly display a notice. Override
178 * it or one of the others to fine-tune the output.
184 if ($this->attachment->isEnclosure()) {
186 $this->showNoticeAttachment();
191 function linkAttr() {
192 return array('class' => 'attachment', 'href' => $this->attachment->url, 'id' => 'attachment-' . $this->attachment->id);
195 function showLink() {
196 $this->out->elementStart('a', $this->linkAttr());
197 $this->out->element('span', null, $this->linkTitle());
198 $this->showRepresentation();
199 $this->out->elementEnd('a');
202 function showNoticeAttachment()
207 function showRepresentation() {
208 $thumb = $this->getThumbInfo();
210 $thumb = $this->sizeThumb($thumb);
211 $this->out->element('img', array('alt' => '', 'src' => $thumb->url, 'width' => $thumb->width, 'height' => $thumb->height));
216 * Pull a thumbnail image reference for the given file.
218 * 1) file_thumbnail table (thumbnails found via oEmbed)
219 * 2) image URL from direct dereference or oEmbed 'photo' type URL
222 * @return mixed object with (url, width, height) properties, or false
224 function getThumbInfo()
226 $thumbnail = File_thumbnail::staticGet('file_id', $this->attachment->id);
230 $enc = $this->attachment->getEnclosure();
232 switch ($enc->mimetype) {
237 $thumb = (object)array();
238 $thumb->url = $enc->url;
240 $thumb->height = 75; // @fixme
247 function sizeThumb($thumbnail) {
250 if ($thumbnail->width > $maxWidth) {
251 $thumb = clone($thumbnail);
252 $thumb->width = $maxWidth;
253 $thumb->height = intval($thumbnail->height * $maxWidth / $thumbnail->width);
261 * start a single notice.
268 // TODO: add notice_type class e.g., notice_video, notice_image
269 $this->out->elementStart('li');
275 * Close the last elements in the notice list item
281 $this->out->elementEnd('li');
286 * used for one-off attachment action
288 class Attachment extends AttachmentListItem
290 function showLink() {
291 $this->out->elementStart('div', array('id' => 'attachment_view',
292 'class' => 'hentry'));
293 $this->out->elementStart('div', 'entry-title');
294 $this->out->element('a', $this->linkAttr(), $this->linkTitle());
295 $this->out->elementEnd('div');
297 $this->out->elementStart('div', 'entry-content');
298 $this->showRepresentation();
299 $this->out->elementEnd('div');
301 if (!empty($this->oembed->author_name) || !empty($this->oembed->provider)) {
302 $this->out->elementStart('div', array('id' => 'oembed_info',
303 'class' => 'entry-content'));
304 if (!empty($this->oembed->author_name)) {
305 $this->out->elementStart('dl', 'vcard author');
306 // TRANS: DT element label in attachment list item.
307 $this->out->element('dt', null, _('Author'));
308 $this->out->elementStart('dd', 'fn');
309 if (empty($this->oembed->author_url)) {
310 $this->out->text($this->oembed->author_name);
312 $this->out->element('a', array('href' => $this->oembed->author_url,
313 'class' => 'url'), $this->oembed->author_name);
315 $this->out->elementEnd('dd');
316 $this->out->elementEnd('dl');
318 if (!empty($this->oembed->provider)) {
319 $this->out->elementStart('dl', 'vcard');
320 // TRANS: DT element label in attachment list item.
321 $this->out->element('dt', null, _('Provider'));
322 $this->out->elementStart('dd', 'fn');
323 if (empty($this->oembed->provider_url)) {
324 $this->out->text($this->oembed->provider);
326 $this->out->element('a', array('href' => $this->oembed->provider_url,
327 'class' => 'url'), $this->oembed->provider);
329 $this->out->elementEnd('dd');
330 $this->out->elementEnd('dl');
332 $this->out->elementEnd('div');
334 $this->out->elementEnd('div');
338 $this->showNoticeAttachment();
341 function linkAttr() {
342 return array('rel' => 'external', 'href' => $this->attachment->url);
345 function linkTitle() {
346 return $this->attachment->url;
349 function showRepresentation() {
350 if (empty($this->oembed->type)) {
351 if (empty($this->attachment->mimetype)) {
352 $this->showFallback();
354 switch ($this->attachment->mimetype) {
359 $this->out->element('img', array('src' => $this->attachment->url, 'alt' => 'alt'));
362 case 'application/ogg':
363 case 'audio/x-speex':
367 case 'video/quicktime':
368 $arr = array('type' => $this->attachment->mimetype,
369 'data' => $this->attachment->url,
373 $this->out->elementStart('object', $arr);
374 $this->out->element('param', array('name' => 'src', 'value' => $this->attachment->url));
375 $this->out->element('param', array('name' => 'autoStart', 'value' => 1));
376 $this->out->elementEnd('object');
380 if ($this->attachment->filename) {
381 // Locally-uploaded HTML. Scrub and display inline.
382 $this->showHtmlFile($this->attachment);
385 // Fall through to default.
388 $this->showFallback();
392 switch ($this->oembed->type) {
396 if (!empty($this->oembed->html)) {
397 require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
400 'elements'=>'*+object+embed');
401 $this->out->raw(htmLawed($this->oembed->html,$config));
402 //$this->out->raw($this->oembed->html);
407 $this->out->element('img', array('src' => $this->oembed->url, 'width' => $this->oembed->width, 'height' => $this->oembed->height, 'alt' => 'alt'));
411 $this->showFallback();
416 protected function showHtmlFile(File $attachment)
418 $body = $this->scrubHtmlFile($attachment);
420 $this->out->raw($body);
425 * @return mixed false on failure, HTML fragment string on success
427 protected function scrubHtmlFile(File $attachment)
429 $path = File::path($attachment->filename);
430 if (!file_exists($path) || !is_readable($path)) {
431 common_log(LOG_ERR, "Missing local HTML attachment $path");
434 $raw = file_get_contents($path);
437 $dom = new DOMDocument();
438 if(!$dom->loadHTML($raw)) {
439 common_log(LOG_ERR, "Bad HTML in local HTML attachment $path");
443 // Remove <script>s or htmlawed will dump their contents into output!
444 // Note: removing child nodes while iterating seems to mess things up,
445 // hence the double loop.
447 foreach ($dom->getElementsByTagName('script') as $script) {
448 $scripts[] = $script;
450 foreach ($scripts as $script) {
451 common_log(LOG_DEBUG, $script->textContent);
452 $script->parentNode->removeChild($script);
455 // Trim out everything outside the body...
456 $body = $dom->saveHTML();
457 $body = preg_replace('/^.*<body[^>]*>/is', '', $body);
458 $body = preg_replace('/<\/body[^>]*>.*$/is', '', $body);
460 require_once INSTALLDIR.'/extlib/htmLawed/htmLawed.php';
461 $config = array('safe' => 1,
462 'deny_attribute' => 'id,style,on*',
463 'comment' => 1); // remove comments
464 $scrubbed = htmLawed($body, $config);