]> git.mxchange.org Git - friendica.git/blob - src/Object/Post.php
Merge pull request #10231 from MrPetovan/bug/warnings
[friendica.git] / src / Object / Post.php
1 <?php
2 /**
3  * @copyright Copyright (C) 2010-2021, the Friendica project
4  *
5  * @license GNU AGPL version 3 or any later version
6  *
7  * This program is free software: you can redistribute it and/or modify
8  * it under the terms of the GNU Affero General Public License as
9  * published by the Free Software Foundation, either version 3 of the
10  * License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU Affero General Public License for more details.
16  *
17  * You should have received a copy of the GNU Affero General Public License
18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
19  *
20  */
21
22 namespace Friendica\Object;
23
24 use Friendica\Content\ContactSelector;
25 use Friendica\Content\Feature;
26 use Friendica\Core\Addon;
27 use Friendica\Core\Hook;
28 use Friendica\Core\Logger;
29 use Friendica\Core\Protocol;
30 use Friendica\Core\Renderer;
31 use Friendica\Core\Session;
32 use Friendica\Database\DBA;
33 use Friendica\DI;
34 use Friendica\Model\Contact;
35 use Friendica\Model\Item;
36 use Friendica\Model\Post as PostModel;
37 use Friendica\Model\Tag;
38 use Friendica\Model\User;
39 use Friendica\Protocol\Activity;
40 use Friendica\Util\Crypto;
41 use Friendica\Util\DateTimeFormat;
42 use Friendica\Util\Strings;
43 use Friendica\Util\Temporal;
44
45 /**
46  * An item
47  */
48 class Post
49 {
50         private $data = [];
51         private $template = null;
52         private $available_templates = [
53                 'wall' => 'wall_thread.tpl',
54                 'wall2wall' => 'wallwall_thread.tpl'
55         ];
56         private $comment_box_template = 'comment_item.tpl';
57         private $toplevel = false;
58         private $writable = false;
59         /**
60          * @var Post[]
61          */
62         private $children = [];
63         private $parent = null;
64
65         /**
66          * @var Thread
67          */
68         private $thread = null;
69         private $redirect_url = null;
70         private $owner_url = '';
71         private $owner_photo = '';
72         private $owner_name = '';
73         private $wall_to_wall = false;
74         private $threaded = false;
75         private $visiting = false;
76
77         /**
78          * Constructor
79          *
80          * @param array $data data array
81          * @throws \Exception
82          */
83         public function __construct(array $data)
84         {
85                 $this->data = $data;
86                 $this->setTemplate('wall');
87                 $this->toplevel = $this->getId() == $this->getDataValue('parent');
88
89                 if (!empty(Session::getUserIDForVisitorContactID($this->getDataValue('contact-id')))) {
90                         $this->visiting = true;
91                 }
92
93                 $this->writable = $this->getDataValue('writable') || $this->getDataValue('self');
94                 $author = ['uid' => 0, 'id' => $this->getDataValue('author-id'),
95                         'network' => $this->getDataValue('author-network'),
96                         'url' => $this->getDataValue('author-link')];
97                 $this->redirect_url = Contact::magicLinkByContact($author);
98                 if (!$this->isToplevel()) {
99                         $this->threaded = true;
100                 }
101
102                 // Prepare the children
103                 if (!empty($data['children'])) {
104                         foreach ($data['children'] as $item) {
105                                 // Only add will be displayed
106                                 if ($item['network'] === Protocol::MAIL && local_user() != $item['uid']) {
107                                         continue;
108                                 } elseif (!visible_activity($item)) {
109                                         continue;
110                                 }
111
112                                 // You can always comment on Diaspora and OStatus items
113                                 if (in_array($item['network'], [Protocol::OSTATUS, Protocol::DIASPORA]) && (local_user() == $item['uid'])) {
114                                         $item['writable'] = true;
115                                 }
116
117                                 $item['pagedrop'] = $data['pagedrop'];
118                                 $child = new Post($item);
119                                 $this->addChild($child);
120                         }
121                 }
122         }
123
124         /**
125          * Get data in a form usable by a conversation template
126          *
127          * @param array   $conv_responses conversation responses
128          * @param integer $thread_level   default = 1
129          *
130          * @return mixed The data requested on success
131          *               false on failure
132          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
133          * @throws \ImagickException
134          */
135         public function getTemplateData(array $conv_responses, $thread_level = 1)
136         {
137                 $a = DI::app();
138
139                 $item = $this->getData();
140                 $edited = false;
141                 // If the time between "created" and "edited" differs we add
142                 // a notice that the post was edited.
143                 // Note: In some networks reshared items seem to have (sometimes) a difference
144                 // between creation time and edit time of a second. Thats why we add the notice
145                 // only if the difference is more than 1 second.
146                 if (strtotime($item['edited']) - strtotime($item['created']) > 1) {
147                         $edited = [
148                                 'label'    => DI::l10n()->t('This entry was edited'),
149                                 'date'     => DateTimeFormat::local($item['edited'], 'r'),
150                                 'relative' => Temporal::getRelativeDate($item['edited'])
151                         ];
152                 }
153                 $sparkle = '';
154                 $buttons = [
155                         'like'     => null,
156                         'dislike'  => null,
157                         'share'    => null,
158                         'announce' => null,
159                 ];
160                 $dropping = false;
161                 $pinned = '';
162                 $pin = false;
163                 $star = false;
164                 $ignore = false;
165                 $ispinned = "unpinned";
166                 $isstarred = "unstarred";
167                 $indent = '';
168                 $shiny = '';
169                 $osparkle = '';
170                 $total_children = $this->countDescendants();
171
172                 $conv = $this->getThread();
173
174                 $lock = ((($item['private'] == Item::PRIVATE) || (($item['uid'] == local_user()) && (strlen($item['allow_cid']) || strlen($item['allow_gid'])
175                         || strlen($item['deny_cid']) || strlen($item['deny_gid']))))
176                         ? DI::l10n()->t('Private Message')
177                         : false);
178
179                 $shareable = in_array($conv->getProfileOwner(), [0, local_user()]) && $item['private'] != Item::PRIVATE;
180                 $announceable = $shareable && in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA, Protocol::TWITTER]);
181
182                 // On Diaspora only toplevel posts can be reshared
183                 if ($announceable && ($item['network'] == Protocol::DIASPORA) && ($item['gravity'] != GRAVITY_PARENT)) {
184                         $announceable = false;
185                 }
186
187                 $edpost = false;
188
189                 if (local_user()) {
190                         if (Strings::compareLink($a->contact['url'], $item['author-link'])) {
191                                 if ($item["event-id"] != 0) {
192                                         $edpost = ["events/event/" . $item['event-id'], DI::l10n()->t("Edit")];
193                                 } else {
194                                         $edpost = ["editpost/" . $item['id'], DI::l10n()->t("Edit")];
195                                 }
196                         }
197                         $dropping = in_array($item['uid'], [0, local_user()]);
198                 }
199
200                 // Editing on items of not subscribed users isn't currently possible
201                 // There are some issues on editing that prevent this.
202                 // But also it is an issue of the supported protocols that doesn't allow editing at all.
203                 if ($item['uid'] == 0) {
204                         $edpost = false;
205                 }
206
207                 if (($this->getDataValue('uid') == local_user()) || $this->isVisiting()) {
208                         $dropping = true;
209                 }
210
211                 $origin = $item['origin'] || $item['parent-origin'];
212
213                 if ($item['pinned']) {
214                         $pinned = DI::l10n()->t('Pinned item');
215                 }
216
217                 // Showing the one or the other text, depending upon if we can only hide it or really delete it.
218                 $delete = $origin ? DI::l10n()->t('Delete globally') : DI::l10n()->t('Remove locally');
219
220                 $drop = false;
221                 $block = false;
222                 if (local_user()) {
223                         $drop = [
224                                 'dropping' => $dropping,
225                                 'pagedrop' => $item['pagedrop'],
226                                 'select' => DI::l10n()->t('Select'),
227                                 'delete' => $delete,
228                         ];
229                 }
230
231                 if (!$item['self']) {
232                         $block = [
233                                 'blocking' => true,
234                                 'block'   => DI::l10n()->t('Block %s', $item['author-name']),
235                                 'author_id'   => $item['author-id'],
236                         ];
237                 }
238
239                 $filer = (($conv->getProfileOwner() == local_user() && ($item['uid'] != 0)) ? DI::l10n()->t('Save to folder') : false);
240
241                 $profile_name = $item['author-name'];
242                 if (!empty($item['author-link']) && empty($item['author-name'])) {
243                         $profile_name = $item['author-link'];
244                 }
245
246                 if (Session::isAuthenticated()) {
247                         $author = ['uid' => 0, 'id' => $item['author-id'],
248                                 'network' => $item['author-network'], 'url' => $item['author-link']];
249                         $profile_link = Contact::magicLinkByContact($author);
250                 } else {
251                         $profile_link = $item['author-link'];
252                 }
253
254                 if (strpos($profile_link, 'redir/') === 0) {
255                         $sparkle = ' sparkle';
256                 }
257
258                 $locate = ['location' => $item['location'], 'coord' => $item['coord'], 'html' => ''];
259                 Hook::callAll('render_location', $locate);
260                 $location_html = $locate['html'] ?: Strings::escapeHtml($locate['location'] ?: $locate['coord'] ?: '');
261
262                 // process action responses - e.g. like/dislike/attend/agree/whatever
263                 $response_verbs = ['like', 'dislike', 'announce'];
264
265                 $isevent = false;
266                 $attend = [];
267                 if ($item['object-type'] === Activity\ObjectType::EVENT) {
268                         $response_verbs[] = 'attendyes';
269                         $response_verbs[] = 'attendno';
270                         $response_verbs[] = 'attendmaybe';
271                         if ($conv->isWritable()) {
272                                 $isevent = true;
273                                 $attend = [DI::l10n()->t('I will attend'), DI::l10n()->t('I will not attend'), DI::l10n()->t('I might attend')];
274                         }
275                 }
276
277                 $responses = [];
278                 foreach ($response_verbs as $value => $verb) {
279                         $responses[$verb] = [
280                                 'self'   => $conv_responses[$verb][$item['uri-id']]['self'] ?? 0,
281                                 'output' => !empty($conv_responses[$verb][$item['uri-id']]) ? format_activity($conv_responses[$verb][$item['uri-id']]['links'], $verb, $item['uri-id']) : '',
282                         ];
283                 }
284
285                 /*
286                  * We should avoid doing this all the time, but it depends on the conversation mode
287                  * And the conv mode may change when we change the conv, or it changes its mode
288                  * Maybe we should establish a way to be notified about conversation changes
289                  */
290                 $this->checkWallToWall();
291
292                 if ($this->isWallToWall() && ($this->getOwnerUrl() == $this->getRedirectUrl())) {
293                         $osparkle = ' sparkle';
294                 }
295
296                 $tagger = '';
297
298                 if ($this->isToplevel()) {
299                         if(local_user()) {
300                                 $ignored = PostModel\ThreadUser::getIgnored($item['uri-id'], local_user());
301                                 if ($item['mention'] || $ignored) {
302                                         $ignore = [
303                                                 'do'        => DI::l10n()->t('Ignore thread'),
304                                                 'undo'      => DI::l10n()->t('Unignore thread'),
305                                                 'toggle'    => DI::l10n()->t('Toggle ignore status'),
306                                                 'classdo'   => $ignored ? "hidden" : "",
307                                                 'classundo' => $ignored ? "" : "hidden",
308                                                 'ignored'   => DI::l10n()->t('Ignored'),
309                                         ];
310                                 }
311
312                                 if ($conv->getProfileOwner() == local_user() && ($item['uid'] != 0)) {
313                                         if ($origin) {
314                                                 $ispinned = ($item['pinned'] ? 'pinned' : 'unpinned');
315
316                                                 $pin = [
317                                                         'do'        => DI::l10n()->t('Pin'),
318                                                         'undo'      => DI::l10n()->t('Unpin'),
319                                                         'toggle'    => DI::l10n()->t('Toggle pin status'),
320                                                         'classdo'   => $item['pinned'] ? 'hidden' : '',
321                                                         'classundo' => $item['pinned'] ? '' : 'hidden',
322                                                         'pinned'   => DI::l10n()->t('Pinned'),
323                                                 ];
324                                         }
325
326                                         $isstarred = (($item['starred']) ? "starred" : "unstarred");
327
328                                         $star = [
329                                                 'do'        => DI::l10n()->t('Add star'),
330                                                 'undo'      => DI::l10n()->t('Remove star'),
331                                                 'toggle'    => DI::l10n()->t('Toggle star status'),
332                                                 'classdo'   => $item['starred'] ? "hidden" : "",
333                                                 'classundo' => $item['starred'] ? "" : "hidden",
334                                                 'starred'   => DI::l10n()->t('Starred'),
335                                         ];
336
337                                         $tagger = [
338                                                 'add'   => DI::l10n()->t('Add tag'),
339                                                 'class' => "",
340                                         ];
341                                 }
342                         }
343                 } else {
344                         $indent = 'comment';
345                 }
346
347                 if ($conv->isWritable()) {
348                         $buttons['like']    = [DI::l10n()->t("I like this \x28toggle\x29")      , DI::l10n()->t('Like')];
349                         $buttons['dislike'] = [DI::l10n()->t("I don't like this \x28toggle\x29"), DI::l10n()->t('Dislike')];
350                         if ($shareable) {
351                                 $buttons['share'] = [DI::l10n()->t('Quote share this'), DI::l10n()->t('Quote Share')];
352                         }
353                         if ($announceable) {
354                                 $buttons['announce'] = [DI::l10n()->t('Reshare this'), DI::l10n()->t('Reshare')];
355                                 $buttons['unannounce'] = [DI::l10n()->t('Cancel your Reshare'), DI::l10n()->t('Unshare')];
356                         }
357                 }
358
359                 $comment_html = $this->getCommentBox($indent);
360
361                 if (strcmp(DateTimeFormat::utc($item['created']), DateTimeFormat::utc('now - 12 hours')) > 0) {
362                         $shiny = 'shiny';
363                 }
364
365                 localize_item($item);
366
367                 $body_html = Item::prepareBody($item, true);
368
369                 list($categories, $folders) = DI::contentItem()->determineCategoriesTerms($item);
370
371                 if (!empty($item['content-warning']) && DI::pConfig()->get(local_user(), 'system', 'disable_cw', false)) {
372                         $title = ucfirst($item['content-warning']);
373                 } else {
374                         $title = $item['title'];
375                 }
376
377                 if (DI::pConfig()->get(local_user(), 'system', 'hide_dislike')) {
378                         $buttons['dislike'] = false;
379                 }
380
381                 // Disable features that aren't available in several networks
382                 if (!in_array($item["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
383                         if ($buttons["dislike"]) {
384                                 $buttons["dislike"] = false;
385                         }
386
387                         $isevent = false;
388                         $tagger = '';
389                 }
390
391                 if ($buttons["like"] && in_array($item["network"], [Protocol::FEED, Protocol::MAIL])) {
392                         $buttons["like"] = false;
393                 }
394
395                 $tags = Tag::populateFromItem($item);
396
397                 $ago = Temporal::getRelativeDate($item['created']);
398                 $ago_received = Temporal::getRelativeDate($item['received']);
399                 if (DI::config()->get('system', 'show_received') && (abs(strtotime($item['created']) - strtotime($item['received'])) > DI::config()->get('system', 'show_received_seconds')) && ($ago != $ago_received)) {
400                         $ago = DI::l10n()->t('%s (Received %s)', $ago, $ago_received);
401                 }
402
403                 // Fetching of Diaspora posts doesn't always work. There are issues with reshares and possibly comments
404                 if (($item['network'] != Protocol::DIASPORA) && empty($comment) && !empty(Session::get('remote_comment'))) {
405                         $remote_comment = [DI::l10n()->t('Comment this item on your system'), DI::l10n()->t('Remote comment'),
406                                 str_replace('{uri}', urlencode($item['uri']), Session::get('remote_comment'))];
407                 } else {
408                         $remote_comment = '';
409                 }
410
411                 $direction = [];
412                 if (!empty($item['direction'])) {
413                         $direction = $item['direction'];
414                 } elseif (DI::config()->get('debug', 'show_direction')) {
415                         $conversation = DBA::selectFirst('conversation', ['direction'], ['item-uri' => $item['uri']]);
416                         if (!empty($conversation['direction']) && in_array($conversation['direction'], [1, 2])) {
417                                 $direction_title = [1 => DI::l10n()->t('Pushed'), 2 => DI::l10n()->t('Pulled')];
418                                 $direction = ['direction' => $conversation['direction'], 'title' => $direction_title[$conversation['direction']]];
419                         }
420                 }
421
422                 $languages = [];
423                 if (!empty($item['language'])) {
424                         $languages = [DI::l10n()->t('Languages'), Item::getLanguageMessage($item)];
425                 }
426
427                 $tmp_item = [
428                         'template'        => $this->getTemplate(),
429                         'type'            => implode("", array_slice(explode("/", $item['verb']), -1)),
430                         'comment_firstcollapsed' => false,
431                         'comment_lastcollapsed' => false,
432                         'suppress_tags'   => DI::config()->get('system', 'suppress_tags'),
433                         'tags'            => $tags['tags'],
434                         'hashtags'        => $tags['hashtags'],
435                         'mentions'        => $tags['mentions'],
436                         'implicit_mentions' => $tags['implicit_mentions'],
437                         'txt_cats'        => DI::l10n()->t('Categories:'),
438                         'txt_folders'     => DI::l10n()->t('Filed under:'),
439                         'has_cats'        => ((count($categories)) ? 'true' : ''),
440                         'has_folders'     => ((count($folders)) ? 'true' : ''),
441                         'categories'      => $categories,
442                         'folders'         => $folders,
443                         'body_html'       => $body_html,
444                         'text'            => strip_tags($body_html),
445                         'id'              => $this->getId(),
446                         'guid'            => urlencode($item['guid']),
447                         'isevent'         => $isevent,
448                         'attend'          => $attend,
449                         'linktitle'       => DI::l10n()->t('View %s\'s profile @ %s', $profile_name, $item['author-link']),
450                         'olinktitle'      => DI::l10n()->t('View %s\'s profile @ %s', $this->getOwnerName(), $item['owner-link']),
451                         'to'              => DI::l10n()->t('to'),
452                         'via'             => DI::l10n()->t('via'),
453                         'wall'            => DI::l10n()->t('Wall-to-Wall'),
454                         'vwall'           => DI::l10n()->t('via Wall-To-Wall:'),
455                         'profile_url'     => $profile_link,
456                         'name'            => $profile_name,
457                         'item_photo_menu_html' => item_photo_menu($item),
458                         'thumb'           => DI::baseUrl()->remove($item['author-avatar']),
459                         'osparkle'        => $osparkle,
460                         'sparkle'         => $sparkle,
461                         'title'           => $title,
462                         'localtime'       => DateTimeFormat::local($item['created'], 'r'),
463                         'ago'             => $item['app'] ? DI::l10n()->t('%s from %s', $ago, $item['app']) : $ago,
464                         'app'             => $item['app'],
465                         'created'         => $ago,
466                         'lock'            => $lock,
467                         'location_html'   => $location_html,
468                         'indent'          => $indent,
469                         'shiny'           => $shiny,
470                         'owner_self'      => $item['author-link'] == Session::get('my_url'),
471                         'owner_url'       => $this->getOwnerUrl(),
472                         'owner_photo'     => DI::baseUrl()->remove($item['owner-avatar']),
473                         'owner_name'      => $this->getOwnerName(),
474                         'plink'           => Item::getPlink($item),
475                         'edpost'          => $edpost,
476                         'ispinned'        => $ispinned,
477                         'pin'             => $pin,
478                         'pinned'          => $pinned,
479                         'isstarred'       => $isstarred,
480                         'star'            => $star,
481                         'ignore'          => $ignore,
482                         'tagger'          => $tagger,
483                         'filer'           => $filer,
484                         'language'        => $languages,
485                         'drop'            => $drop,
486                         'block'           => $block,
487                         'vote'            => $buttons,
488                         'like_html'       => $responses['like']['output'],
489                         'dislike_html'    => $responses['dislike']['output'],
490                         'responses'       => $responses,
491                         'switchcomment'   => DI::l10n()->t('Comment'),
492                         'reply_label'     => DI::l10n()->t('Reply to %s', $profile_name),
493                         'comment_html'    => $comment_html,
494                         'remote_comment'  => $remote_comment,
495                         'menu'            => DI::l10n()->t('More'),
496                         'previewing'      => $conv->isPreview() ? ' preview ' : '',
497                         'wait'            => DI::l10n()->t('Please wait'),
498                         'thread_level'    => $thread_level,
499                         'edited'          => $edited,
500                         'network'         => $item["network"],
501                         'network_name'    => ContactSelector::networkToName($item['author-network'], $item['author-link'], $item['network']),
502                         'network_icon'    => ContactSelector::networkToIcon($item['network'], $item['author-link']),
503                         'received'        => $item['received'],
504                         'commented'       => $item['commented'],
505                         'created_date'    => $item['created'],
506                         'uriid'           => $item['uri-id'],
507                         'return'          => (DI::args()->getCommand()) ? bin2hex(DI::args()->getCommand()) : '',
508                         'direction'       => $direction,
509                         'reshared'        => $item['reshared'] ?? '',
510                         'delivery'        => [
511                                 'queue_count'       => $item['delivery_queue_count'],
512                                 'queue_done'        => $item['delivery_queue_done'] + $item['delivery_queue_failed'], /// @todo Possibly display it separately in the future
513                                 'notifier_pending'  => DI::l10n()->t('Notifier task is pending'),
514                                 'delivery_pending'  => DI::l10n()->t('Delivery to remote servers is pending'),
515                                 'delivery_underway' => DI::l10n()->t('Delivery to remote servers is underway'),
516                                 'delivery_almost'   => DI::l10n()->t('Delivery to remote servers is mostly done'),
517                                 'delivery_done'     => DI::l10n()->t('Delivery to remote servers is done'),
518                         ],
519                 ];
520
521                 $arr = ['item' => $item, 'output' => $tmp_item];
522                 Hook::callAll('display_item', $arr);
523
524                 $result = $arr['output'];
525
526                 $result['children'] = [];
527                 $children = $this->getChildren();
528                 $nb_children = count($children);
529                 if ($nb_children > 0) {
530                         foreach ($children as $child) {
531                                 $result['children'][] = $child->getTemplateData($conv_responses, $thread_level + 1);
532                         }
533
534                         // Collapse
535                         if (($nb_children > 2) || ($thread_level > 1)) {
536                                 $result['children'][0]['comment_firstcollapsed'] = true;
537                                 $result['children'][0]['num_comments'] = DI::l10n()->tt('%d comment', '%d comments', $total_children);
538                                 $result['children'][0]['show_text'] = DI::l10n()->t('Show more');
539                                 $result['children'][0]['hide_text'] = DI::l10n()->t('Show fewer');
540                                 if ($thread_level > 1) {
541                                         $result['children'][$nb_children - 1]['comment_lastcollapsed'] = true;
542                                 } else {
543                                         $result['children'][$nb_children - 3]['comment_lastcollapsed'] = true;
544                                 }
545                         }
546                 }
547
548                 $result['total_comments_num'] = $this->isToplevel() ? $total_children : 0;
549
550                 $result['private'] = $item['private'];
551                 $result['toplevel'] = ($this->isToplevel() ? 'toplevel_item' : '');
552
553                 if ($this->isThreaded()) {
554                         $result['flatten'] = false;
555                         $result['threaded'] = true;
556                 } else {
557                         $result['flatten'] = true;
558                         $result['threaded'] = false;
559                 }
560
561                 return $result;
562         }
563
564         /**
565          * @return integer
566          */
567         public function getId()
568         {
569                 return $this->getDataValue('id');
570         }
571
572         /**
573          * @return boolean
574          */
575         public function isThreaded()
576         {
577                 return $this->threaded;
578         }
579
580         /**
581          * Add a child item
582          *
583          * @param Post $item The child item to add
584          *
585          * @return mixed
586          * @throws \Exception
587          */
588         public function addChild(Post $item)
589         {
590                 $item_id = $item->getId();
591                 if (!$item_id) {
592                         Logger::log('[ERROR] Post::addChild : Item has no ID!!', Logger::DEBUG);
593                         return false;
594                 } elseif ($this->getChild($item->getId())) {
595                         Logger::log('[WARN] Post::addChild : Item already exists (' . $item->getId() . ').', Logger::DEBUG);
596                         return false;
597                 }
598
599                 $activity = DI::activity();
600
601                 /*
602                  * Only add what will be displayed
603                  */
604                 if ($item->getDataValue('network') === Protocol::MAIL && local_user() != $item->getDataValue('uid')) {
605                         return false;
606                 } elseif ($activity->match($item->getDataValue('verb'), Activity::LIKE) ||
607                           $activity->match($item->getDataValue('verb'), Activity::DISLIKE)) {
608                         return false;
609                 }
610
611                 $item->setParent($this);
612                 $this->children[] = $item;
613
614                 return end($this->children);
615         }
616
617         /**
618          * Get a child by its ID
619          *
620          * @param integer $id The child id
621          *
622          * @return mixed
623          */
624         public function getChild($id)
625         {
626                 foreach ($this->getChildren() as $child) {
627                         if ($child->getId() == $id) {
628                                 return $child;
629                         }
630                 }
631
632                 return null;
633         }
634
635         /**
636          * Get all our children
637          *
638          * @return Post[]
639          */
640         public function getChildren()
641         {
642                 return $this->children;
643         }
644
645         /**
646          * Set our parent
647          *
648          * @param Post $item The item to set as parent
649          *
650          * @return void
651          */
652         protected function setParent(Post $item)
653         {
654                 $parent = $this->getParent();
655                 if ($parent) {
656                         $parent->removeChild($this);
657                 }
658
659                 $this->parent = $item;
660                 $this->setThread($item->getThread());
661         }
662
663         /**
664          * Remove our parent
665          *
666          * @return void
667          */
668         protected function removeParent()
669         {
670                 $this->parent = null;
671                 $this->thread = null;
672         }
673
674         /**
675          * Remove a child
676          *
677          * @param Post $item The child to be removed
678          *
679          * @return boolean Success or failure
680          * @throws \Exception
681          */
682         public function removeChild(Post $item)
683         {
684                 $id = $item->getId();
685                 foreach ($this->getChildren() as $key => $child) {
686                         if ($child->getId() == $id) {
687                                 $child->removeParent();
688                                 unset($this->children[$key]);
689                                 // Reindex the array, in order to make sure there won't be any trouble on loops using count()
690                                 $this->children = array_values($this->children);
691                                 return true;
692                         }
693                 }
694                 Logger::log('[WARN] Item::removeChild : Item is not a child (' . $id . ').', Logger::DEBUG);
695                 return false;
696         }
697
698         /**
699          * Get parent item
700          *
701          * @return object
702          */
703         protected function getParent()
704         {
705                 return $this->parent;
706         }
707
708         /**
709          * Set conversation thread
710          *
711          * @param Thread $thread
712          *
713          * @return void
714          */
715         public function setThread(Thread $thread = null)
716         {
717                 $this->thread = $thread;
718
719                 // Set it on our children too
720                 foreach ($this->getChildren() as $child) {
721                         $child->setThread($thread);
722                 }
723         }
724
725         /**
726          * Get conversation
727          *
728          * @return Thread
729          */
730         public function getThread()
731         {
732                 return $this->thread;
733         }
734
735         /**
736          * Get raw data
737          *
738          * We shouldn't need this
739          *
740          * @return array
741          */
742         public function getData()
743         {
744                 return $this->data;
745         }
746
747         /**
748          * Get a data value
749          *
750          * @param string $name key
751          *
752          * @return mixed value on success
753          *               false on failure
754          */
755         public function getDataValue($name)
756         {
757                 if (!isset($this->data[$name])) {
758                         // Logger::log('[ERROR] Item::getDataValue : Item has no value name "'. $name .'".', Logger::DEBUG);
759                         return false;
760                 }
761
762                 return $this->data[$name];
763         }
764
765         /**
766          * Set template
767          *
768          * @param string $name template name
769          * @return bool
770          * @throws \Exception
771          */
772         private function setTemplate($name)
773         {
774                 if (empty($this->available_templates[$name])) {
775                         Logger::log('[ERROR] Item::setTemplate : Template not available ("' . $name . '").', Logger::DEBUG);
776                         return false;
777                 }
778
779                 $this->template = $this->available_templates[$name];
780
781                 return true;
782         }
783
784         /**
785          * Get template
786          *
787          * @return object
788          */
789         private function getTemplate()
790         {
791                 return $this->template;
792         }
793
794         /**
795          * Check if this is a toplevel post
796          *
797          * @return boolean
798          */
799         private function isToplevel()
800         {
801                 return $this->toplevel;
802         }
803
804         /**
805          * Check if this is writable
806          *
807          * @return boolean
808          */
809         private function isWritable()
810         {
811                 $conv = $this->getThread();
812
813                 if ($conv) {
814                         // This will allow us to comment on wall-to-wall items owned by our friends
815                         // and community forums even if somebody else wrote the post.
816                         // bug #517 - this fixes for conversation owner
817                         if ($conv->getMode() == 'profile' && $conv->getProfileOwner() == local_user()) {
818                                 return true;
819                         }
820
821                         // this fixes for visitors
822                         return ($this->writable || ($this->isVisiting() && $conv->getMode() == 'profile'));
823                 }
824                 return $this->writable;
825         }
826
827         /**
828          * Count the total of our descendants
829          *
830          * @return integer
831          */
832         private function countDescendants()
833         {
834                 $children = $this->getChildren();
835                 $total = count($children);
836                 if ($total > 0) {
837                         foreach ($children as $child) {
838                                 $total += $child->countDescendants();
839                         }
840                 }
841
842                 return $total;
843         }
844
845         /**
846          * Get the template for the comment box
847          *
848          * @return string
849          */
850         private function getCommentBoxTemplate()
851         {
852                 return $this->comment_box_template;
853         }
854
855         /**
856          * Get default text for the comment box
857          *
858          * @return string
859          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
860          */
861         private function getDefaultText()
862         {
863                 $a = DI::app();
864
865                 if (!local_user()) {
866                         return '';
867                 }
868
869                 $owner = User::getOwnerDataById($a->user['uid']);
870
871                 if (!Feature::isEnabled(local_user(), 'explicit_mentions')) {
872                         return '';
873                 }
874
875                 $item = PostModel::selectFirst(['author-addr', 'uri-id', 'network', 'gravity'], ['id' => $this->getId()]);
876                 if (!DBA::isResult($item) || empty($item['author-addr'])) {
877                         // Should not happen
878                         return '';
879                 }
880
881                 if (($item['author-addr'] != $owner['addr']) && (($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], [Protocol::DIASPORA]))) {
882                         $text = '@' . $item['author-addr'] . ' ';
883                 } else {
884                         $text = '';
885                 }
886
887                 $terms = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION]);
888                 foreach ($terms as $term) {
889                         if (!$term['url']) {
890                                 DI::logger()->warning('Mention term with no URL', ['term' => $term]);
891                                 continue;
892                         }
893
894                         $profile = Contact::getByURL($term['url'], false, ['addr', 'contact-type']);
895                         if (!empty($profile['addr']) && (($profile['contact-type'] ?? Contact::TYPE_UNKNOWN) != Contact::TYPE_COMMUNITY) &&
896                                 ($profile['addr'] != $owner['addr']) && !strstr($text, $profile['addr'])) {
897                                 $text .= '@' . $profile['addr'] . ' ';
898                         }
899                 }
900
901                 return $text;
902         }
903
904         /**
905          * Get the comment box
906          *
907          * @param string $indent Indent value
908          *
909          * @return mixed The comment box string (empty if no comment box)
910          *               false on failure
911          * @throws \Exception
912          */
913         private function getCommentBox($indent)
914         {
915                 $a = DI::app();
916
917                 $comment_box = '';
918                 $conv = $this->getThread();
919
920                 if ($conv->isWritable() && $this->isWritable()) {
921                         /*
922                          * Hmmm, code depending on the presence of a particular addon?
923                          * This should be better if done by a hook
924                          */
925                         $qcomment = null;
926                         if (Addon::isEnabled('qcomment')) {
927                                 $words = DI::pConfig()->get(local_user(), 'qcomment', 'words');
928                                 $qcomment = $words ? explode("\n", $words) : [];
929                         }
930
931                         // Fetch the user id from the parent when the owner user is empty
932                         $uid = $conv->getProfileOwner();
933                         $parent_uid = $this->getDataValue('uid');
934
935                         $default_text = $this->getDefaultText();
936
937                         if (!is_null($parent_uid) && ($uid != $parent_uid)) {
938                                 $uid = $parent_uid;
939                         }
940
941                         $template = Renderer::getMarkupTemplate($this->getCommentBoxTemplate());
942                         $comment_box = Renderer::replaceMacros($template, [
943                                 '$return_path' => DI::args()->getQueryString(),
944                                 '$threaded'    => $this->isThreaded(),
945                                 '$jsreload'    => '',
946                                 '$wall'        => ($conv->getMode() === 'profile'),
947                                 '$id'          => $this->getId(),
948                                 '$parent'      => $this->getId(),
949                                 '$qcomment'    => $qcomment,
950                                 '$default'     => $default_text,
951                                 '$profile_uid' => $uid,
952                                 '$mylink'      => DI::baseUrl()->remove($a->contact['url'] ?? ''),
953                                 '$mytitle'     => DI::l10n()->t('This is you'),
954                                 '$myphoto'     => DI::baseUrl()->remove($a->contact['thumb'] ?? ''),
955                                 '$comment'     => DI::l10n()->t('Comment'),
956                                 '$submit'      => DI::l10n()->t('Submit'),
957                                 '$loading'     => DI::l10n()->t('Loading...'),
958                                 '$edbold'      => DI::l10n()->t('Bold'),
959                                 '$editalic'    => DI::l10n()->t('Italic'),
960                                 '$eduline'     => DI::l10n()->t('Underline'),
961                                 '$edquote'     => DI::l10n()->t('Quote'),
962                                 '$edcode'      => DI::l10n()->t('Code'),
963                                 '$edimg'       => DI::l10n()->t('Image'),
964                                 '$edurl'       => DI::l10n()->t('Link'),
965                                 '$edattach'    => DI::l10n()->t('Link or Media'),
966                                 '$prompttext'  => DI::l10n()->t('Please enter a image/video/audio/webpage URL:'),
967                                 '$preview'     => DI::l10n()->t('Preview'),
968                                 '$indent'      => $indent,
969                                 '$sourceapp'   => DI::l10n()->t($a->sourcename),
970                                 '$rand_num'    => Crypto::randomDigits(12)
971                         ]);
972                 }
973
974                 return $comment_box;
975         }
976
977         /**
978          * @return string
979          */
980         private function getRedirectUrl()
981         {
982                 return $this->redirect_url;
983         }
984
985         /**
986          * Check if we are a wall to wall item and set the relevant properties
987          *
988          * @return void
989          * @throws \Exception
990          */
991         protected function checkWallToWall()
992         {
993                 $a = DI::app();
994                 $conv = $this->getThread();
995                 $this->wall_to_wall = false;
996
997                 if ($this->isToplevel()) {
998                         if ($conv->getMode() !== 'profile') {
999                                 if ($this->getDataValue('wall') && !$this->getDataValue('self') && !empty($a->page_contact)) {
1000                                         // On the network page, I am the owner. On the display page it will be the profile owner.
1001                                         // This will have been stored in $a->page_contact by our calling page.
1002                                         // Put this person as the wall owner of the wall-to-wall notice.
1003
1004                                         $this->owner_url = Contact::magicLinkByContact($a->page_contact);
1005                                         $this->owner_photo = $a->page_contact['thumb'];
1006                                         $this->owner_name = $a->page_contact['name'];
1007                                         $this->wall_to_wall = true;
1008                                 } elseif ($this->getDataValue('owner-link')) {
1009                                         $owner_linkmatch = (($this->getDataValue('owner-link')) && Strings::compareLink($this->getDataValue('owner-link'), $this->getDataValue('author-link')));
1010                                         $alias_linkmatch = (($this->getDataValue('alias')) && Strings::compareLink($this->getDataValue('alias'), $this->getDataValue('author-link')));
1011                                         $owner_namematch = (($this->getDataValue('owner-name')) && $this->getDataValue('owner-name') == $this->getDataValue('author-name'));
1012
1013                                         if (!$owner_linkmatch && !$alias_linkmatch && !$owner_namematch) {
1014                                                 // The author url doesn't match the owner (typically the contact)
1015                                                 // and also doesn't match the contact alias.
1016                                                 // The name match is a hack to catch several weird cases where URLs are
1017                                                 // all over the park. It can be tricked, but this prevents you from
1018                                                 // seeing "Bob Smith to Bob Smith via Wall-to-wall" and you know darn
1019                                                 // well that it's the same Bob Smith.
1020                                                 // But it could be somebody else with the same name. It just isn't highly likely.
1021
1022
1023                                                 $this->owner_photo = $this->getDataValue('owner-avatar');
1024                                                 $this->owner_name = $this->getDataValue('owner-name');
1025                                                 $this->wall_to_wall = true;
1026
1027                                                 $owner = ['uid' => 0, 'id' => $this->getDataValue('owner-id'),
1028                                                         'network' => $this->getDataValue('owner-network'),
1029                                                         'url' => $this->getDataValue('owner-link')];
1030                                                 $this->owner_url = Contact::magicLinkByContact($owner);
1031                                         }
1032                                 }
1033                         }
1034                 }
1035
1036                 if (!$this->wall_to_wall) {
1037                         $this->setTemplate('wall');
1038                         $this->owner_url = '';
1039                         $this->owner_photo = '';
1040                         $this->owner_name = '';
1041                 }
1042         }
1043
1044         /**
1045          * @return boolean
1046          */
1047         private function isWallToWall()
1048         {
1049                 return $this->wall_to_wall;
1050         }
1051
1052         /**
1053          * @return string
1054          */
1055         private function getOwnerUrl()
1056         {
1057                 return $this->owner_url;
1058         }
1059
1060         /**
1061          * @return string
1062          */
1063         private function getOwnerName()
1064         {
1065                 return $this->owner_name;
1066         }
1067
1068         /**
1069          * @return boolean
1070          */
1071         private function isVisiting()
1072         {
1073                 return $this->visiting;
1074         }
1075 }