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