src/Object/Post.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   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\Term;
  37 use Friendica\Model\User;
  38 use Friendica\Protocol\Activity;
  39 use Friendica\Util\Crypto;
  40 use Friendica\Util\DateTimeFormat;
  41 use Friendica\Util\Proxy as ProxyUtils;
  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                 $dropping = false;
 156                 $pinned = '';
 157                 $pin = false;
 158                 $star = false;
 159                 $ignore = false;
 160                 $ispinned = "unpinned";
 161                 $isstarred = "unstarred";
 162                 $indent = '';
 163                 $shiny = '';
 164                 $osparkle = '';
 165                 $total_children = $this->countDescendants();
 166
 167                 $conv = $this->getThread();
 168
 169                 $lock = ((($item['private'] == 1) || (($item['uid'] == local_user()) && (strlen($item['allow_cid']) || strlen($item['allow_gid'])
 170                         || strlen($item['deny_cid']) || strlen($item['deny_gid']))))
 171                         ? DI::l10n()->t('Private Message')
 172                         : false);
 173
 174                 $shareable = in_array($conv->getProfileOwner(), [0, local_user()]) && $item['private'] != 1;
 175
 176                 $edpost = false;
 177
 178                 if (local_user()) {
 179                         if (Strings::compareLink($a->contact['url'], $item['author-link'])) {
 180                                 if ($item["event-id"] != 0) {
 181                                         $edpost = ["events/event/" . $item['event-id'], DI::l10n()->t("Edit")];
 182                                 } else {
 183                                         $edpost = ["editpost/" . $item['id'], DI::l10n()->t("Edit")];
 184                                 }
 185                         }
 186                         $dropping = in_array($item['uid'], [0, local_user()]);
 187                 }
 188
 189                 // Editing on items of not subscribed users isn't currently possible
 190                 // There are some issues on editing that prevent this.
 191                 // But also it is an issue of the supported protocols that doesn't allow editing at all.
 192                 if ($item['uid'] == 0) {
 193                         $edpost = false;
 194                 }
 195
 196                 if (($this->getDataValue('uid') == local_user()) || $this->isVisiting()) {
 197                         $dropping = true;
 198                 }
 199
 200                 $origin = $item['origin'];
 201
 202                 if (!$origin) {
 203                         /// @todo This shouldn't be done as query here, but better during the data creation.
 204                         // it is now done here, since during the RC phase we shouldn't make to intense changes.
 205                         $parent = Item::selectFirst(['origin'], ['id' => $item['parent']]);
 206                         if (DBA::isResult($parent)) {
 207                                 $origin = $parent['origin'];
 208                         }
 209                 } elseif ($item['pinned']) {
 210                         $pinned = DI::l10n()->t('pinned item');
 211                 }
 212
 213                 if ($origin && ($item['id'] != $item['parent']) && ($item['network'] == Protocol::ACTIVITYPUB)) {
 214                         // ActivityPub doesn't allow removal of remote comments
 215                         $delete = DI::l10n()->t('Delete locally');
 216                 } else {
 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
 221                 $drop = [
 222                         'dropping' => $dropping,
 223                         'pagedrop' => $item['pagedrop'],
 224                         'select'   => DI::l10n()->t('Select'),
 225                         'delete'   => $delete,
 226                 ];
 227
 228                 if (!local_user()) {
 229                         $drop = false;
 230                 }
 231
 232                 $filer = (($conv->getProfileOwner() == local_user() && ($item['uid'] != 0)) ? DI::l10n()->t("save to folder") : false);
 233
 234                 $profile_name = $item['author-name'];
 235                 if (!empty($item['author-link']) && empty($item['author-name'])) {
 236                         $profile_name = $item['author-link'];
 237                 }
 238
 239                 $author = ['uid' => 0, 'id' => $item['author-id'],
 240                         'network' => $item['author-network'], 'url' => $item['author-link']];
 241
 242                 if (Session::isAuthenticated()) {
 243                         $profile_link = Contact::magicLinkByContact($author);
 244                 } else {
 245                         $profile_link = $item['author-link'];
 246                 }
 247
 248                 if (strpos($profile_link, 'redir/') === 0) {
 249                         $sparkle = ' sparkle';
 250                 }
 251
 252                 $locate = ['location' => $item['location'], 'coord' => $item['coord'], 'html' => ''];
 253                 Hook::callAll('render_location', $locate);
 254                 $location = ((strlen($locate['html'])) ? $locate['html'] : render_location_dummy($locate));
 255
 256                 // process action responses - e.g. like/dislike/attend/agree/whatever
 257                 $response_verbs = ['like', 'dislike', 'announce'];
 258
 259                 $isevent = false;
 260                 $attend = [];
 261                 if ($item['object-type'] === Activity\ObjectType::EVENT) {
 262                         $response_verbs[] = 'attendyes';
 263                         $response_verbs[] = 'attendno';
 264                         $response_verbs[] = 'attendmaybe';
 265                         if ($conv->isWritable()) {
 266                                 $isevent = true;
 267                                 $attend = [DI::l10n()->t('I will attend'), DI::l10n()->t('I will not attend'), DI::l10n()->t('I might attend')];
 268                         }
 269                 }
 270
 271                 $responses = get_responses($conv_responses, $response_verbs, $item, $this);
 272
 273                 foreach ($response_verbs as $value => $verbs) {
 274                         $responses[$verbs]['output'] = !empty($conv_responses[$verbs][$item['uri']]) ? format_like($conv_responses[$verbs][$item['uri']], $conv_responses[$verbs][$item['uri'] . '-l'], $verbs, $item['uri']) : '';
 275                 }
 276
 277                 /*
 278                  * We should avoid doing this all the time, but it depends on the conversation mode
 279                  * And the conv mode may change when we change the conv, or it changes its mode
 280                  * Maybe we should establish a way to be notified about conversation changes
 281                  */
 282                 $this->checkWallToWall();
 283
 284                 if ($this->isWallToWall() && ($this->getOwnerUrl() == $this->getRedirectUrl())) {
 285                         $osparkle = ' sparkle';
 286                 }
 287
 288                 $tagger = '';
 289
 290                 if ($this->isToplevel()) {
 291                         if(local_user()) {
 292                                 $thread = Item::selectFirstThreadForUser(local_user(), ['ignored'], ['iid' => $item['id']]);
 293                                 if (DBA::isResult($thread)) {
 294                                         $ignore = [
 295                                                 'do'        => DI::l10n()->t("ignore thread"),
 296                                                 'undo'      => DI::l10n()->t("unignore thread"),
 297                                                 'toggle'    => DI::l10n()->t("toggle ignore status"),
 298                                                 'classdo'   => $thread['ignored'] ? "hidden" : "",
 299                                                 'classundo' => $thread['ignored'] ? "" : "hidden",
 300                                                 'ignored'   => DI::l10n()->t('ignored'),
 301                                         ];
 302                                 }
 303
 304                                 if ($conv->getProfileOwner() == local_user() && ($item['uid'] != 0)) {
 305                                         if ($origin) {
 306                                                 $ispinned = ($item['pinned'] ? 'pinned' : 'unpinned');
 307
 308                                                 $pin = [
 309                                                         'do'        => DI::l10n()->t('pin'),
 310                                                         'undo'      => DI::l10n()->t('unpin'),
 311                                                         'toggle'    => DI::l10n()->t('toggle pin status'),
 312                                                         'classdo'   => $item['pinned'] ? 'hidden' : '',
 313                                                         'classundo' => $item['pinned'] ? '' : 'hidden',
 314                                                         'pinned'   => DI::l10n()->t('pinned'),
 315                                                 ];
 316                                         }
 317
 318                                         $isstarred = (($item['starred']) ? "starred" : "unstarred");
 319
 320                                         $star = [
 321                                                 'do'        => DI::l10n()->t("add star"),
 322                                                 'undo'      => DI::l10n()->t("remove star"),
 323                                                 'toggle'    => DI::l10n()->t("toggle star status"),
 324                                                 'classdo'   => $item['starred'] ? "hidden" : "",
 325                                                 'classundo' => $item['starred'] ? "" : "hidden",
 326                                                 'starred'   => DI::l10n()->t('starred'),
 327                                         ];
 328
 329                                         $tagger = [
 330                                                 'add'   => DI::l10n()->t("add tag"),
 331                                                 'class' => "",
 332                                         ];
 333                                 }
 334                         }
 335                 } else {
 336                         $indent = 'comment';
 337                 }
 338
 339                 if ($conv->isWritable()) {
 340                         $buttons = [
 341                                 'like'    => [DI::l10n()->t("I like this \x28toggle\x29"), DI::l10n()->t("like")],
 342                                 'dislike' => [DI::l10n()->t("I don't like this \x28toggle\x29"), DI::l10n()->t("dislike")],
 343                         ];
 344                         if ($shareable) {
 345                                 $buttons['share'] = [DI::l10n()->t('Share this'), DI::l10n()->t('share')];
 346                         }
 347                 }
 348
 349                 $comment = $this->getCommentBox($indent);
 350
 351                 if (strcmp(DateTimeFormat::utc($item['created']), DateTimeFormat::utc('now - 12 hours')) > 0) {
 352                         $shiny = 'shiny';
 353                 }
 354
 355                 localize_item($item);
 356
 357                 $body = Item::prepareBody($item, true);
 358
 359                 list($categories, $folders) = DI::contentItem()->determineCategoriesTerms($item);
 360
 361                 $body_e       = $body;
 362                 $text_e       = strip_tags($body);
 363                 $name_e       = $profile_name;
 364
 365                 if (!empty($item['content-warning']) && DI::pConfig()->get(local_user(), 'system', 'disable_cw', false)) {
 366                         $title_e = ucfirst($item['content-warning']);
 367                 } else {
 368                         $title_e = $item['title'];
 369                 }
 370
 371                 $location_e   = $location;
 372                 $owner_name_e = $this->getOwnerName();
 373
 374                 // Disable features that aren't available in several networks
 375                 if (!in_array($item["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA]) && isset($buttons["dislike"])) {
 376                         unset($buttons["dislike"]);
 377                         $isevent = false;
 378                         $tagger = '';
 379                 }
 380
 381                 if (($item["network"] == Protocol::FEED) && isset($buttons["like"])) {
 382                         unset($buttons["like"]);
 383                 }
 384
 385                 if (($item["network"] == Protocol::MAIL) && isset($buttons["like"])) {
 386                         unset($buttons["like"]);
 387                 }
 388
 389                 $tags = Term::populateTagsFromItem($item);
 390
 391                 $ago = Temporal::getRelativeDate($item['created']);
 392                 $ago_received = Temporal::getRelativeDate($item['received']);
 393                 if (DI::config()->get('system', 'show_received') && (abs(strtotime($item['created']) - strtotime($item['received'])) > DI::config()->get('system', 'show_received_seconds')) && ($ago != $ago_received)) {
 394                         $ago = DI::l10n()->t('%s (Received %s)', $ago, $ago_received);
 395                 }
 396
 397                 $tmp_item = [
 398                         'template'        => $this->getTemplate(),
 399                         'type'            => implode("", array_slice(explode("/", $item['verb']), -1)),
 400                         'suppress_tags'   => DI::config()->get('system', 'suppress_tags'),
 401                         'tags'            => $tags['tags'],
 402                         'hashtags'        => $tags['hashtags'],
 403                         'mentions'        => $tags['mentions'],
 404                         'implicit_mentions' => $tags['implicit_mentions'],
 405                         'txt_cats'        => DI::l10n()->t('Categories:'),
 406                         'txt_folders'     => DI::l10n()->t('Filed under:'),
 407                         'has_cats'        => ((count($categories)) ? 'true' : ''),
 408                         'has_folders'     => ((count($folders)) ? 'true' : ''),
 409                         'categories'      => $categories,
 410                         'folders'         => $folders,
 411                         'body'            => $body_e,
 412                         'text'            => $text_e,
 413                         'id'              => $this->getId(),
 414                         'guid'            => urlencode($item['guid']),
 415                         'isevent'         => $isevent,
 416                         'attend'          => $attend,
 417                         'linktitle'       => DI::l10n()->t('View %s\'s profile @ %s', $profile_name, $item['author-link']),
 418                         'olinktitle'      => DI::l10n()->t('View %s\'s profile @ %s', $this->getOwnerName(), $item['owner-link']),
 419                         'to'              => DI::l10n()->t('to'),
 420                         'via'             => DI::l10n()->t('via'),
 421                         'wall'            => DI::l10n()->t('Wall-to-Wall'),
 422                         'vwall'           => DI::l10n()->t('via Wall-To-Wall:'),
 423                         'profile_url'     => $profile_link,
 424                         'item_photo_menu' => item_photo_menu($item),
 425                         'name'            => $name_e,
 426                         'thumb'           => DI::baseUrl()->remove(ProxyUtils::proxifyUrl($item['author-avatar'], false, ProxyUtils::SIZE_THUMB)),
 427                         'osparkle'        => $osparkle,
 428                         'sparkle'         => $sparkle,
 429                         'title'           => $title_e,
 430                         'localtime'       => DateTimeFormat::local($item['created'], 'r'),
 431                         'ago'             => $item['app'] ? DI::l10n()->t('%s from %s', $ago, $item['app']) : $ago,
 432                         'app'             => $item['app'],
 433                         'created'         => $ago,
 434                         'lock'            => $lock,
 435                         'location'        => $location_e,
 436                         'indent'          => $indent,
 437                         'shiny'           => $shiny,
 438                         'owner_self'      => $item['author-link'] == Session::get('my_url'),
 439                         'owner_url'       => $this->getOwnerUrl(),
 440                         'owner_photo'     => DI::baseUrl()->remove(ProxyUtils::proxifyUrl($item['owner-avatar'], false, ProxyUtils::SIZE_THUMB)),
 441                         'owner_name'      => $owner_name_e,
 442                         'plink'           => Item::getPlink($item),
 443                         'edpost'          => $edpost,
 444                         'ispinned'        => $ispinned,
 445                         'pin'             => $pin,
 446                         'pinned'          => $pinned,
 447                         'isstarred'       => $isstarred,
 448                         'star'            => $star,
 449                         'ignore'          => $ignore,
 450                         'tagger'          => $tagger,
 451                         'filer'           => $filer,
 452                         'drop'            => $drop,
 453                         'vote'            => $buttons,
 454                         'like'            => $responses['like']['output'],
 455                         'dislike'         => $responses['dislike']['output'],
 456                         'responses'       => $responses,
 457                         'switchcomment'   => DI::l10n()->t('Comment'),
 458                         'reply_label'     => DI::l10n()->t('Reply to %s', $name_e),
 459                         'comment'         => $comment,
 460                         'menu'            => DI::l10n()->t('More'),
 461                         'previewing'      => $conv->isPreview() ? ' preview ' : '',
 462                         'wait'            => DI::l10n()->t('Please wait'),
 463                         'thread_level'    => $thread_level,
 464                         'edited'          => $edited,
 465                         'network'         => $item["network"],
 466                         'network_name'    => ContactSelector::networkToName($item['author-network'], $item['author-link'], $item['network']),
 467                         'network_icon'    => ContactSelector::networkToIcon($item['network'], $item['author-link']),
 468                         'received'        => $item['received'],
 469                         'commented'       => $item['commented'],
 470                         'created_date'    => $item['created'],
 471                         'return'          => (DI::args()->getCommand()) ? bin2hex(DI::args()->getCommand()) : '',
 472                         'delivery'        => [
 473                                 'queue_count'       => $item['delivery_queue_count'],
 474                                 'queue_done'        => $item['delivery_queue_done'] + $item['delivery_queue_failed'], /// @todo Possibly display it separately in the future
 475                                 'notifier_pending'  => DI::l10n()->t('Notifier task is pending'),
 476                                 'delivery_pending'  => DI::l10n()->t('Delivery to remote servers is pending'),
 477                                 'delivery_underway' => DI::l10n()->t('Delivery to remote servers is underway'),
 478                                 'delivery_almost'   => DI::l10n()->t('Delivery to remote servers is mostly done'),
 479                                 'delivery_done'     => DI::l10n()->t('Delivery to remote servers is done'),
 480                         ],
 481                 ];
 482
 483                 $arr = ['item' => $item, 'output' => $tmp_item];
 484                 Hook::callAll('display_item', $arr);
 485
 486                 $result = $arr['output'];
 487
 488                 $result['children'] = [];
 489                 $children = $this->getChildren();
 490                 $nb_children = count($children);
 491                 if ($nb_children > 0) {
 492                         foreach ($children as $child) {
 493                                 $result['children'][] = $child->getTemplateData($conv_responses, $thread_level + 1);
 494                         }
 495
 496                         // Collapse
 497                         if (($nb_children > 2) || ($thread_level > 1)) {
 498                                 $result['children'][0]['comment_firstcollapsed'] = true;
 499                                 $result['children'][0]['num_comments'] = DI::l10n()->tt('%d comment', '%d comments', $total_children);
 500                                 $result['children'][0]['show_text'] = DI::l10n()->t('Show more');
 501                                 $result['children'][0]['hide_text'] = DI::l10n()->t('Show fewer');
 502                                 if ($thread_level > 1) {
 503                                         $result['children'][$nb_children - 1]['comment_lastcollapsed'] = true;
 504                                 } else {
 505                                         $result['children'][$nb_children - 3]['comment_lastcollapsed'] = true;
 506                                 }
 507                         }
 508                 }
 509
 510                 if ($this->isToplevel()) {
 511                         $result['total_comments_num'] = "$total_children";
 512                         $result['total_comments_text'] = DI::l10n()->tt('comment', 'comments', $total_children);
 513                 }
 514
 515                 $result['private'] = $item['private'];
 516                 $result['toplevel'] = ($this->isToplevel() ? 'toplevel_item' : '');
 517
 518                 if ($this->isThreaded()) {
 519                         $result['flatten'] = false;
 520                         $result['threaded'] = true;
 521                 } else {
 522                         $result['flatten'] = true;
 523                         $result['threaded'] = false;
 524                 }
 525
 526                 return $result;
 527         }
 528
 529         /**
 530          * @return integer
 531          */
 532         public function getId()
 533         {
 534                 return $this->getDataValue('id');
 535         }
 536
 537         /**
 538          * @return boolean
 539          */
 540         public function isThreaded()
 541         {
 542                 return $this->threaded;
 543         }
 544
 545         /**
 546          * Add a child item
 547          *
 548          * @param Post $item The child item to add
 549          *
 550          * @return mixed
 551          * @throws \Exception
 552          */
 553         public function addChild(Post $item)
 554         {
 555                 $item_id = $item->getId();
 556                 if (!$item_id) {
 557                         Logger::log('[ERROR] Post::addChild : Item has no ID!!', Logger::DEBUG);
 558                         return false;
 559                 } elseif ($this->getChild($item->getId())) {
 560                         Logger::log('[WARN] Post::addChild : Item already exists (' . $item->getId() . ').', Logger::DEBUG);
 561                         return false;
 562                 }
 563
 564                 $activity = DI::activity();
 565
 566                 /*
 567                  * Only add what will be displayed
 568                  */
 569                 if ($item->getDataValue('network') === Protocol::MAIL && local_user() != $item->getDataValue('uid')) {
 570                         return false;
 571                 } elseif ($activity->match($item->getDataValue('verb'), Activity::LIKE) ||
 572                           $activity->match($item->getDataValue('verb'), Activity::DISLIKE)) {
 573                         return false;
 574                 }
 575
 576                 $item->setParent($this);
 577                 $this->children[] = $item;
 578
 579                 return end($this->children);
 580         }
 581
 582         /**
 583          * Get a child by its ID
 584          *
 585          * @param integer $id The child id
 586          *
 587          * @return mixed
 588          */
 589         public function getChild($id)
 590         {
 591                 foreach ($this->getChildren() as $child) {
 592                         if ($child->getId() == $id) {
 593                                 return $child;
 594                         }
 595                 }
 596
 597                 return null;
 598         }
 599
 600         /**
 601          * Get all our children
 602          *
 603          * @return Post[]
 604          */
 605         public function getChildren()
 606         {
 607                 return $this->children;
 608         }
 609
 610         /**
 611          * Set our parent
 612          *
 613          * @param Post $item The item to set as parent
 614          *
 615          * @return void
 616          */
 617         protected function setParent(Post $item)
 618         {
 619                 $parent = $this->getParent();
 620                 if ($parent) {
 621                         $parent->removeChild($this);
 622                 }
 623
 624                 $this->parent = $item;
 625                 $this->setThread($item->getThread());
 626         }
 627
 628         /**
 629          * Remove our parent
 630          *
 631          * @return void
 632          */
 633         protected function removeParent()
 634         {
 635                 $this->parent = null;
 636                 $this->thread = null;
 637         }
 638
 639         /**
 640          * Remove a child
 641          *
 642          * @param Post $item The child to be removed
 643          *
 644          * @return boolean Success or failure
 645          * @throws \Exception
 646          */
 647         public function removeChild(Post $item)
 648         {
 649                 $id = $item->getId();
 650                 foreach ($this->getChildren() as $key => $child) {
 651                         if ($child->getId() == $id) {
 652                                 $child->removeParent();
 653                                 unset($this->children[$key]);
 654                                 // Reindex the array, in order to make sure there won't be any trouble on loops using count()
 655                                 $this->children = array_values($this->children);
 656                                 return true;
 657                         }
 658                 }
 659                 Logger::log('[WARN] Item::removeChild : Item is not a child (' . $id . ').', Logger::DEBUG);
 660                 return false;
 661         }
 662
 663         /**
 664          * Get parent item
 665          *
 666          * @return object
 667          */
 668         protected function getParent()
 669         {
 670                 return $this->parent;
 671         }
 672
 673         /**
 674          * Set conversation thread
 675          *
 676          * @param Thread $thread
 677          *
 678          * @return void
 679          */
 680         public function setThread(Thread $thread = null)
 681         {
 682                 $this->thread = $thread;
 683
 684                 // Set it on our children too
 685                 foreach ($this->getChildren() as $child) {
 686                         $child->setThread($thread);
 687                 }
 688         }
 689
 690         /**
 691          * Get conversation
 692          *
 693          * @return Thread
 694          */
 695         public function getThread()
 696         {
 697                 return $this->thread;
 698         }
 699
 700         /**
 701          * Get raw data
 702          *
 703          * We shouldn't need this
 704          *
 705          * @return array
 706          */
 707         public function getData()
 708         {
 709                 return $this->data;
 710         }
 711
 712         /**
 713          * Get a data value
 714          *
 715          * @param string $name key
 716          *
 717          * @return mixed value on success
 718          *               false on failure
 719          */
 720         public function getDataValue($name)
 721         {
 722                 if (!isset($this->data[$name])) {
 723                         // Logger::log('[ERROR] Item::getDataValue : Item has no value name "'. $name .'".', Logger::DEBUG);
 724                         return false;
 725                 }
 726
 727                 return $this->data[$name];
 728         }
 729
 730         /**
 731          * Set template
 732          *
 733          * @param string $name template name
 734          * @return bool
 735          * @throws \Exception
 736          */
 737         private function setTemplate($name)
 738         {
 739                 if (empty($this->available_templates[$name])) {
 740                         Logger::log('[ERROR] Item::setTemplate : Template not available ("' . $name . '").', Logger::DEBUG);
 741                         return false;
 742                 }
 743
 744                 $this->template = $this->available_templates[$name];
 745
 746                 return true;
 747         }
 748
 749         /**
 750          * Get template
 751          *
 752          * @return object
 753          */
 754         private function getTemplate()
 755         {
 756                 return $this->template;
 757         }
 758
 759         /**
 760          * Check if this is a toplevel post
 761          *
 762          * @return boolean
 763          */
 764         private function isToplevel()
 765         {
 766                 return $this->toplevel;
 767         }
 768
 769         /**
 770          * Check if this is writable
 771          *
 772          * @return boolean
 773          */
 774         private function isWritable()
 775         {
 776                 $conv = $this->getThread();
 777
 778                 if ($conv) {
 779                         // This will allow us to comment on wall-to-wall items owned by our friends
 780                         // and community forums even if somebody else wrote the post.
 781                         // bug #517 - this fixes for conversation owner
 782                         if ($conv->getMode() == 'profile' && $conv->getProfileOwner() == local_user()) {
 783                                 return true;
 784                         }
 785
 786                         // this fixes for visitors
 787                         return ($this->writable || ($this->isVisiting() && $conv->getMode() == 'profile'));
 788                 }
 789                 return $this->writable;
 790         }
 791
 792         /**
 793          * Count the total of our descendants
 794          *
 795          * @return integer
 796          */
 797         private function countDescendants()
 798         {
 799                 $children = $this->getChildren();
 800                 $total = count($children);
 801                 if ($total > 0) {
 802                         foreach ($children as $child) {
 803                                 $total += $child->countDescendants();
 804                         }
 805                 }
 806
 807                 return $total;
 808         }
 809
 810         /**
 811          * Get the template for the comment box
 812          *
 813          * @return string
 814          */
 815         private function getCommentBoxTemplate()
 816         {
 817                 return $this->comment_box_template;
 818         }
 819
 820         /**
 821          * Get default text for the comment box
 822          *
 823          * @return string
 824          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 825          */
 826         private function getDefaultText()
 827         {
 828                 $a = DI::app();
 829
 830                 if (!local_user()) {
 831                         return '';
 832                 }
 833
 834                 $owner = User::getOwnerDataById($a->user['uid']);
 835
 836                 if (!Feature::isEnabled(local_user(), 'explicit_mentions')) {
 837                         return '';
 838                 }
 839
 840                 $item = Item::selectFirst(['author-addr'], ['id' => $this->getId()]);
 841                 if (!DBA::isResult($item) || empty($item['author-addr'])) {
 842                         // Should not happen
 843                         return '';
 844                 }
 845
 846                 if ($item['author-addr'] != $owner['addr']) {
 847                         $text = '@' . $item['author-addr'] . ' ';
 848                 } else {
 849                         $text = '';
 850                 }
 851
 852                 $terms = Term::tagArrayFromItemId($this->getId(), [Term::MENTION, Term::IMPLICIT_MENTION]);
 853                 foreach ($terms as $term) {
 854                         $profile = Contact::getDetailsByURL($term['url']);
 855                         if (!empty($profile['addr']) && ((($profile['contact-type'] ?? '') ?: Contact::TYPE_UNKNOWN) != Contact::TYPE_COMMUNITY) &&
 856                                 ($profile['addr'] != $owner['addr']) && !strstr($text, $profile['addr'])) {
 857                                 $text .= '@' . $profile['addr'] . ' ';
 858                         }
 859                 }
 860
 861                 return $text;
 862         }
 863
 864         /**
 865          * Get the comment box
 866          *
 867          * @param string $indent Indent value
 868          *
 869          * @return mixed The comment box string (empty if no comment box)
 870          *               false on failure
 871          * @throws \Exception
 872          */
 873         private function getCommentBox($indent)
 874         {
 875                 $a = DI::app();
 876
 877                 $comment_box = '';
 878                 $conv = $this->getThread();
 879                 $ww = '';
 880                 if (($conv->getMode() === 'network') && $this->isWallToWall()) {
 881                         $ww = 'ww';
 882                 }
 883
 884                 if ($conv->isWritable() && $this->isWritable()) {
 885                         $qcomment = null;
 886
 887                         /*
 888                          * Hmmm, code depending on the presence of a particular addon?
 889                          * This should be better if done by a hook
 890                          */
 891                         if (Addon::isEnabled('qcomment')) {
 892                                 $qc = ((local_user()) ? DI::pConfig()->get(local_user(), 'qcomment', 'words') : null);
 893                                 $qcomment = (($qc) ? explode("\n", $qc) : null);
 894                         }
 895
 896                         // Fetch the user id from the parent when the owner user is empty
 897                         $uid = $conv->getProfileOwner();
 898                         $parent_uid = $this->getDataValue('uid');
 899
 900                         $default_text = $this->getDefaultText();
 901
 902                         if (!is_null($parent_uid) && ($uid != $parent_uid)) {
 903                                 $uid = $parent_uid;
 904                         }
 905
 906                         $template = Renderer::getMarkupTemplate($this->getCommentBoxTemplate());
 907                         $comment_box = Renderer::replaceMacros($template, [
 908                                 '$return_path' => DI::args()->getQueryString(),
 909                                 '$threaded'    => $this->isThreaded(),
 910                                 '$jsreload'    => '',
 911                                 '$wall'        => ($conv->getMode() === 'profile'),
 912                                 '$id'          => $this->getId(),
 913                                 '$parent'      => $this->getId(),
 914                                 '$qcomment'    => $qcomment,
 915                                 '$default'     => $default_text,
 916                                 '$profile_uid' => $uid,
 917                                 '$mylink'      => DI::baseUrl()->remove($a->contact['url']),
 918                                 '$mytitle'     => DI::l10n()->t('This is you'),
 919                                 '$myphoto'     => DI::baseUrl()->remove($a->contact['thumb']),
 920                                 '$comment'     => DI::l10n()->t('Comment'),
 921                                 '$submit'      => DI::l10n()->t('Submit'),
 922                                 '$loading'     => DI::l10n()->t('Loading...'),
 923                                 '$edbold'      => DI::l10n()->t('Bold'),
 924                                 '$editalic'    => DI::l10n()->t('Italic'),
 925                                 '$eduline'     => DI::l10n()->t('Underline'),
 926                                 '$edquote'     => DI::l10n()->t('Quote'),
 927                                 '$edcode'      => DI::l10n()->t('Code'),
 928                                 '$edimg'       => DI::l10n()->t('Image'),
 929                                 '$edurl'       => DI::l10n()->t('Link'),
 930                                 '$edattach'    => DI::l10n()->t('Link or Media'),
 931                                 '$prompttext'  => DI::l10n()->t('Please enter a image/video/audio/webpage URL:'),
 932                                 '$preview'     => DI::l10n()->t('Preview'),
 933                                 '$indent'      => $indent,
 934                                 '$sourceapp'   => DI::l10n()->t($a->sourcename),
 935                                 '$ww'          => $conv->getMode() === 'network' ? $ww : '',
 936                                 '$rand_num'    => Crypto::randomDigits(12)
 937                         ]);
 938                 }
 939
 940                 return $comment_box;
 941         }
 942
 943         /**
 944          * @return string
 945          */
 946         private function getRedirectUrl()
 947         {
 948                 return $this->redirect_url;
 949         }
 950
 951         /**
 952          * Check if we are a wall to wall item and set the relevant properties
 953          *
 954          * @return void
 955          * @throws \Exception
 956          */
 957         protected function checkWallToWall()
 958         {
 959                 $a = DI::app();
 960                 $conv = $this->getThread();
 961                 $this->wall_to_wall = false;
 962
 963                 if ($this->isToplevel()) {
 964                         if ($conv->getMode() !== 'profile') {
 965                                 if ($this->getDataValue('wall') && !$this->getDataValue('self')) {
 966                                         // On the network page, I am the owner. On the display page it will be the profile owner.
 967                                         // This will have been stored in $a->page_contact by our calling page.
 968                                         // Put this person as the wall owner of the wall-to-wall notice.
 969
 970                                         $this->owner_url = Contact::magicLink($a->page_contact['url']);
 971                                         $this->owner_photo = $a->page_contact['thumb'];
 972                                         $this->owner_name = $a->page_contact['name'];
 973                                         $this->wall_to_wall = true;
 974                                 } elseif ($this->getDataValue('owner-link')) {
 975                                         $owner_linkmatch = (($this->getDataValue('owner-link')) && Strings::compareLink($this->getDataValue('owner-link'), $this->getDataValue('author-link')));
 976                                         $alias_linkmatch = (($this->getDataValue('alias')) && Strings::compareLink($this->getDataValue('alias'), $this->getDataValue('author-link')));
 977                                         $owner_namematch = (($this->getDataValue('owner-name')) && $this->getDataValue('owner-name') == $this->getDataValue('author-name'));
 978
 979                                         if (!$owner_linkmatch && !$alias_linkmatch && !$owner_namematch) {
 980                                                 // The author url doesn't match the owner (typically the contact)
 981                                                 // and also doesn't match the contact alias.
 982                                                 // The name match is a hack to catch several weird cases where URLs are
 983                                                 // all over the park. It can be tricked, but this prevents you from
 984                                                 // seeing "Bob Smith to Bob Smith via Wall-to-wall" and you know darn
 985                                                 // well that it's the same Bob Smith.
 986                                                 // But it could be somebody else with the same name. It just isn't highly likely.
 987
 988
 989                                                 $this->owner_photo = $this->getDataValue('owner-avatar');
 990                                                 $this->owner_name = $this->getDataValue('owner-name');
 991                                                 $this->wall_to_wall = true;
 992
 993                                                 $owner = ['uid' => 0, 'id' => $this->getDataValue('owner-id'),
 994                                                         'network' => $this->getDataValue('owner-network'),
 995                                                         'url' => $this->getDataValue('owner-link')];
 996                                                 $this->owner_url = Contact::magicLinkByContact($owner);
 997                                         }
 998                                 }
 999                         }
1000                 }
1001
1002                 if (!$this->wall_to_wall) {
1003                         $this->setTemplate('wall');
1004                         $this->owner_url = '';
1005                         $this->owner_photo = '';
1006                         $this->owner_name = '';
1007                 }
1008         }
1009
1010         /**
1011          * @return boolean
1012          */
1013         private function isWallToWall()
1014         {
1015                 return $this->wall_to_wall;
1016         }
1017
1018         /**
1019          * @return string
1020          */
1021         private function getOwnerUrl()
1022         {
1023                 return $this->owner_url;
1024         }
1025
1026         /**
1027          * @return string
1028          */
1029         private function getOwnerName()
1030         {
1031                 return $this->owner_name;
1032         }
1033
1034         /**
1035          * @return boolean
1036          */
1037         private function isVisiting()
1038         {
1039                 return $this->visiting;
1040         }
1041 }