src/Content/Conversation.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Content;
  23
  24 use Friendica\App;
  25 use Friendica\App\Arguments;
  26 use Friendica\App\BaseURL;
  27 use Friendica\BaseModule;
  28 use Friendica\Content\ContactSelector;
  29 use Friendica\Content\Feature;
  30 use Friendica\Content\Item;
  31 use Friendica\Core\ACL;
  32 use Friendica\Core\Config\IConfig;
  33 use Friendica\Core\Hook;
  34 use Friendica\Core\L10n;
  35 use Friendica\Core\PConfig\IPConfig;
  36 use Friendica\Core\Protocol;
  37 use Friendica\Core\Renderer;
  38 use Friendica\Core\Session;
  39 use Friendica\Core\Theme;
  40 use Friendica\Database\DBA;
  41 use Friendica\Model\Contact;
  42 use Friendica\Model\Item as ItemModel;
  43 use Friendica\Model\Post;
  44 use Friendica\Model\Tag;
  45 use Friendica\Model\User;
  46 use Friendica\Model\Verb;
  47 use Friendica\Object\Post as PostObject;
  48 use Friendica\Object\Thread;
  49 use Friendica\Protocol\Activity;
  50 use Friendica\Util\Crypto;
  51 use Friendica\Util\DateTimeFormat;
  52 use Friendica\Util\Profiler;
  53 use Friendica\Util\Proxy;
  54 use Friendica\Util\Strings;
  55 use Friendica\Util\Temporal;
  56 use Psr\Log\LoggerInterface;
  57
  58 class Conversation
  59 {
  60         /** @var Activity */
  61         private $activity;
  62         /** @var L10n */
  63         private $l10n;
  64         /** @var Profiler */
  65         private $profiler;
  66         /** @var LoggerInterface */
  67         private $logger;
  68         /** @var Item */
  69         private $item;
  70         /** @var App\Arguments */
  71         private $args;
  72         /** @var IPConfig */
  73         private $pConfig;
  74         /** @var BaseURL */
  75         private $baseURL;
  76         /** @var IConfig */
  77         private $config;
  78         /** @var App */
  79         private $app;
  80         /** @var App\Page */
  81         private $page;
  82         /** @var App\Mode */
  83         private $mode;
  84
  85         public function __construct(LoggerInterface $logger, Profiler $profiler, Activity $activity, L10n $l10n, Item $item, Arguments $args, BaseURL $baseURL, IConfig $config, IPConfig $pConfig, App\Page $page, App\Mode $mode, App $app)
  86         {
  87                 $this->activity = $activity;
  88                 $this->item     = $item;
  89                 $this->config   = $config;
  90                 $this->mode     = $mode;
  91                 $this->baseURL  = $baseURL;
  92                 $this->profiler = $profiler;
  93                 $this->logger   = $logger;
  94                 $this->l10n     = $l10n;
  95                 $this->args     = $args;
  96                 $this->pConfig  = $pConfig;
  97                 $this->page     = $page;
  98                 $this->app      = $app;
  99         }
 100
 101         /**
 102          * Checks item to see if it is one of the builtin activities (like/dislike, event attendance, consensus items, etc.)
 103          *
 104          * Increments the count of each matching activity and adds a link to the author as needed.
 105          *
 106          * @param array  $activity
 107          * @param array &$conv_responses (already created with builtin activity structure)
 108          * @return void
 109          * @throws ImagickException
 110          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 111          */
 112         public function builtinActivityPuller(array $activity, array &$conv_responses)
 113         {
 114                 foreach ($conv_responses as $mode => $v) {
 115                         $sparkle = '';
 116
 117                         switch ($mode) {
 118                                 case 'like':
 119                                         $verb = Activity::LIKE;
 120                                         break;
 121                                 case 'dislike':
 122                                         $verb = Activity::DISLIKE;
 123                                         break;
 124                                 case 'attendyes':
 125                                         $verb = Activity::ATTEND;
 126                                         break;
 127                                 case 'attendno':
 128                                         $verb = Activity::ATTENDNO;
 129                                         break;
 130                                 case 'attendmaybe':
 131                                         $verb = Activity::ATTENDMAYBE;
 132                                         break;
 133                                 case 'announce':
 134                                         $verb = Activity::ANNOUNCE;
 135                                         break;
 136                                 default:
 137                                         return;
 138                         }
 139
 140                         if (!empty($activity['verb']) && $this->activity->match($activity['verb'], $verb) && ($activity['gravity'] != GRAVITY_PARENT)) {
 141                                 $author = [
 142                                         'uid'     => 0,
 143                                         'id'      => $activity['author-id'],
 144                                         'network' => $activity['author-network'],
 145                                         'url'     => $activity['author-link']
 146                                 ];
 147                                 $url = Contact::magicLinkByContact($author);
 148                                 if (strpos($url, 'redir/') === 0) {
 149                                         $sparkle = ' class="sparkle" ';
 150                                 }
 151
 152                                 $link = '<a href="' . $url . '"' . $sparkle . '>' . htmlentities($activity['author-name']) . '</a>';
 153
 154                                 if (empty($activity['thr-parent-id'])) {
 155                                         $activity['thr-parent-id'] = $activity['parent-uri-id'];
 156                                 }
 157
 158                                 // Skip when the causer of the parent is the same than the author of the announce
 159                                 if (($verb == Activity::ANNOUNCE) && Post::exists(['uri-id' => $activity['thr-parent-id'],
 160                                         'uid' => $activity['uid'], 'causer-id' => $activity['author-id'], 'gravity' => GRAVITY_PARENT])) {
 161                                         continue;
 162                                 }
 163
 164                                 if (!isset($conv_responses[$mode][$activity['thr-parent-id']])) {
 165                                         $conv_responses[$mode][$activity['thr-parent-id']] = [
 166                                                 'links' => [],
 167                                                 'self'  => 0,
 168                                         ];
 169                                 } elseif (in_array($link, $conv_responses[$mode][$activity['thr-parent-id']]['links'])) {
 170                                         // only list each unique author once
 171                                         continue;
 172                                 }
 173
 174                                 if (public_contact() == $activity['author-id']) {
 175                                         $conv_responses[$mode][$activity['thr-parent-id']]['self'] = 1;
 176                                 }
 177
 178                                 $conv_responses[$mode][$activity['thr-parent-id']]['links'][] = $link;
 179
 180                                 // there can only be one activity verb per item so if we found anything, we can stop looking
 181                                 return;
 182                         }
 183                 }
 184         }
 185
 186         /**
 187          * Format the activity text for an item/photo/video
 188          *
 189          * @param array  $links = array of pre-linked names of actors
 190          * @param string $verb  = one of 'like, 'dislike', 'attendyes', 'attendno', 'attendmaybe'
 191          * @param int    $id    = item id
 192          * @return string formatted text
 193          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 194          */
 195         public function formatActivity(array $links, $verb, $id)
 196         {
 197                 $this->profiler->startRecording('rendering');
 198                 $o        = '';
 199                 $expanded = '';
 200                 $phrase   = '';
 201
 202                 $total = count($links);
 203                 if ($total == 1) {
 204                         $likers = $links[0];
 205
 206                         // Phrase if there is only one liker. In other cases it will be uses for the expanded
 207                         // list which show all likers
 208                         switch ($verb) {
 209                                 case 'like':
 210                                         $phrase = $this->l10n->t('%s likes this.', $likers);
 211                                         break;
 212                                 case 'dislike':
 213                                         $phrase = $this->l10n->t('%s doesn\'t like this.', $likers);
 214                                         break;
 215                                 case 'attendyes':
 216                                         $phrase = $this->l10n->t('%s attends.', $likers);
 217                                         break;
 218                                 case 'attendno':
 219                                         $phrase = $this->l10n->t('%s doesn\'t attend.', $likers);
 220                                         break;
 221                                 case 'attendmaybe':
 222                                         $phrase = $this->l10n->t('%s attends maybe.', $likers);
 223                                         break;
 224                                 case 'announce':
 225                                         $phrase = $this->l10n->t('%s reshared this.', $likers);
 226                                         break;
 227                         }
 228                 } elseif ($total > 1) {
 229                         if ($total < MAX_LIKERS) {
 230                                 $likers = implode(', ', array_slice($links, 0, -1));
 231                                 $likers .= ' ' . $this->l10n->t('and') . ' ' . $links[count($links) - 1];
 232                         } else {
 233                                 $likers = implode(', ', array_slice($links, 0, MAX_LIKERS - 1));
 234                                 $likers .= ' ' . $this->l10n->t('and %d other people', $total - MAX_LIKERS);
 235                         }
 236
 237                         $spanatts = "class=\"fakelink\" onclick=\"openClose('{$verb}list-$id');\"";
 238
 239                         $explikers = '';
 240                         switch ($verb) {
 241                                 case 'like':
 242                                         $phrase    = $this->l10n->t('<span  %1$s>%2$d people</span> like this', $spanatts, $total);
 243                                         $explikers = $this->l10n->t('%s like this.', $likers);
 244                                         break;
 245                                 case 'dislike':
 246                                         $phrase    = $this->l10n->t('<span  %1$s>%2$d people</span> don\'t like this', $spanatts, $total);
 247                                         $explikers = $this->l10n->t('%s don\'t like this.', $likers);
 248                                         break;
 249                                 case 'attendyes':
 250                                         $phrase    = $this->l10n->t('<span  %1$s>%2$d people</span> attend', $spanatts, $total);
 251                                         $explikers = $this->l10n->t('%s attend.', $likers);
 252                                         break;
 253                                 case 'attendno':
 254                                         $phrase    = $this->l10n->t('<span  %1$s>%2$d people</span> don\'t attend', $spanatts, $total);
 255                                         $explikers = $this->l10n->t('%s don\'t attend.', $likers);
 256                                         break;
 257                                 case 'attendmaybe':
 258                                         $phrase    = $this->l10n->t('<span  %1$s>%2$d people</span> attend maybe', $spanatts, $total);
 259                                         $explikers = $this->l10n->t('%s attend maybe.', $likers);
 260                                         break;
 261                                 case 'announce':
 262                                         $phrase    = $this->l10n->t('<span  %1$s>%2$d people</span> reshared this', $spanatts, $total);
 263                                         $explikers = $this->l10n->t('%s reshared this.', $likers);
 264                                         break;
 265                         }
 266
 267                         $expanded .= "\t" . '<p class="wall-item-' . $verb . '-expanded" id="' . $verb . 'list-' . $id . '" style="display: none;" >' . $explikers . EOL . '</p>';
 268                 }
 269
 270                 $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('voting_fakelink.tpl'), [
 271                         '$phrase' => $phrase,
 272                         '$type'   => $verb,
 273                         '$id'     => $id
 274                 ]);
 275                 $o .= $expanded;
 276
 277                 $this->profiler->stopRecording();
 278                 return $o;
 279         }
 280
 281         public function statusEditor(array $x = [], $notes_cid = 0, $popup = false)
 282         {
 283                 $user = User::getById($this->app->getLoggedInUserId(), ['uid', 'nickname', 'allow_location', 'default-location']);
 284                 if (empty($user['uid'])) {
 285                         return '';
 286                 }
 287
 288                 $this->profiler->startRecording('rendering');
 289                 $o = '';
 290
 291                 $x['allow_location']   = $x['allow_location'] ?? $user['allow_location'];
 292                 $x['default_location'] = $x['default_location'] ?? $user['default-location'];
 293                 $x['nickname']         = $x['nickname'] ?? $user['nickname'];
 294                 $x['lockstate']        = $x['lockstate'] ?? ACL::getLockstateForUserId($user['uid']) ? 'lock' : 'unlock';
 295                 $x['acl']              = $x['acl'] ?? ACL::getFullSelectorHTML($this->page, $user['uid'], true);
 296                 $x['bang']             = $x['bang'] ?? '';
 297                 $x['visitor']          = $x['visitor'] ?? 'block';
 298                 $x['is_owner']         = $x['is_owner'] ?? true;
 299                 $x['profile_uid']      = $x['profile_uid'] ?? local_user();
 300
 301
 302                 $geotag = !empty($x['allow_location']) ? Renderer::replaceMacros(Renderer::getMarkupTemplate('jot_geotag.tpl'), []) : '';
 303
 304                 $tpl = Renderer::getMarkupTemplate('jot-header.tpl');
 305                 $this->page['htmlhead'] .= Renderer::replaceMacros($tpl, [
 306                         '$newpost'   => 'true',
 307                         '$baseurl'   => $this->baseURL->get(true),
 308                         '$geotag'    => $geotag,
 309                         '$nickname'  => $x['nickname'],
 310                         '$ispublic'  => $this->l10n->t('Visible to <strong>everybody</strong>'),
 311                         '$linkurl'   => $this->l10n->t('Please enter a image/video/audio/webpage URL:'),
 312                         '$term'      => $this->l10n->t('Tag term:'),
 313                         '$fileas'    => $this->l10n->t('Save to Folder:'),
 314                         '$whereareu' => $this->l10n->t('Where are you right now?'),
 315                         '$delitems'  => $this->l10n->t("Delete item\x28s\x29?"),
 316                         '$is_mobile' => $this->mode->isMobile(),
 317                 ]);
 318
 319                 $jotplugins = '';
 320                 Hook::callAll('jot_tool', $jotplugins);
 321
 322                 $tpl = Renderer::getMarkupTemplate("jot.tpl");
 323
 324                 $o .= Renderer::replaceMacros($tpl, [
 325                         '$new_post'            => $this->l10n->t('New Post'),
 326                         '$return_path'         => $this->args->getQueryString(),
 327                         '$action'              => 'item',
 328                         '$share'               => ($x['button'] ?? '') ?: $this->l10n->t('Share'),
 329                         '$loading'             => $this->l10n->t('Loading...'),
 330                         '$upload'              => $this->l10n->t('Upload photo'),
 331                         '$shortupload'         => $this->l10n->t('upload photo'),
 332                         '$attach'              => $this->l10n->t('Attach file'),
 333                         '$shortattach'         => $this->l10n->t('attach file'),
 334                         '$edbold'              => $this->l10n->t('Bold'),
 335                         '$editalic'            => $this->l10n->t('Italic'),
 336                         '$eduline'             => $this->l10n->t('Underline'),
 337                         '$edquote'             => $this->l10n->t('Quote'),
 338                         '$edcode'              => $this->l10n->t('Code'),
 339                         '$edimg'               => $this->l10n->t('Image'),
 340                         '$edurl'               => $this->l10n->t('Link'),
 341                         '$edattach'            => $this->l10n->t('Link or Media'),
 342                         '$edvideo'             => $this->l10n->t('Video'),
 343                         '$setloc'              => $this->l10n->t('Set your location'),
 344                         '$shortsetloc'         => $this->l10n->t('set location'),
 345                         '$noloc'               => $this->l10n->t('Clear browser location'),
 346                         '$shortnoloc'          => $this->l10n->t('clear location'),
 347                         '$title'               => $x['title'] ?? '',
 348                         '$placeholdertitle'    => $this->l10n->t('Set title'),
 349                         '$category'            => $x['category'] ?? '',
 350                         '$placeholdercategory' => Feature::isEnabled(local_user(), 'categories') ? $this->l10n->t("Categories \x28comma-separated list\x29") : '',
 351                         '$scheduled_at'        => Temporal::getDateTimeField(
 352                                 new \DateTime(),
 353                                 new \DateTime('now + 6 months'),
 354                                 null,
 355                                 $this->l10n->t('Scheduled at'),
 356                                 'scheduled_at'
 357                         ),
 358                         '$wait'         => $this->l10n->t('Please wait'),
 359                         '$permset'      => $this->l10n->t('Permission settings'),
 360                         '$shortpermset' => $this->l10n->t('Permissions'),
 361                         '$wall'         => $notes_cid ? 0 : 1,
 362                         '$posttype'     => $notes_cid ? ItemModel::PT_PERSONAL_NOTE : ItemModel::PT_ARTICLE,
 363                         '$content'      => $x['content'] ?? '',
 364                         '$post_id'      => $x['post_id'] ?? '',
 365                         '$baseurl'      => $this->baseURL->get(true),
 366                         '$defloc'       => $x['default_location'],
 367                         '$visitor'      => $x['visitor'],
 368                         '$pvisit'       => $notes_cid ? 'none' : $x['visitor'],
 369                         '$public'       => $this->l10n->t('Public post'),
 370                         '$lockstate'    => $x['lockstate'],
 371                         '$bang'         => $x['bang'],
 372                         '$profile_uid'  => $x['profile_uid'],
 373                         '$preview'      => $this->l10n->t('Preview'),
 374                         '$jotplugins'   => $jotplugins,
 375                         '$notes_cid'    => $notes_cid,
 376                         '$cancel'       => $this->l10n->t('Cancel'),
 377                         '$rand_num'     => Crypto::randomDigits(12),
 378
 379                         // ACL permissions box
 380                         '$acl' => $x['acl'],
 381
 382                         //jot nav tab (used in some themes)
 383                         '$message' => $this->l10n->t('Message'),
 384                         '$browser' => $this->l10n->t('Browser'),
 385
 386                         '$compose_link_title' => $this->l10n->t('Open Compose page'),
 387                 ]);
 388
 389
 390                 if ($popup == true) {
 391                         $o = '<div id="jot-popup" style="display: none;">' . $o . '</div>';
 392                 }
 393
 394                 $this->profiler->stopRecording();
 395                 return $o;
 396         }
 397
 398         /**
 399          * "Render" a conversation or list of items for HTML display.
 400          * There are two major forms of display:
 401          *      - Sequential or unthreaded ("New Item View" or search results)
 402          *      - conversation view
 403          * The $mode parameter decides between the various renderings and also
 404          * figures out how to determine page owner and other contextual items
 405          * that are based on unique features of the calling module.
 406          * @param array  $items
 407          * @param        $mode
 408          * @param        $update
 409          * @param bool   $preview
 410          * @param string $order
 411          * @param int    $uid
 412          * @return string
 413          * @throws ImagickException
 414          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 415          */
 416         public function create(array $items, $mode, $update, $preview = false, $order = 'commented', $uid = 0)
 417         {
 418                 $this->profiler->startRecording('rendering');
 419
 420                 $this->page->registerFooterScript(Theme::getPathForFile('asset/typeahead.js/dist/typeahead.bundle.js'));
 421                 $this->page->registerFooterScript(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput.js'));
 422                 $this->page->registerStylesheet(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput.css'));
 423                 $this->page->registerStylesheet(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput-typeahead.css'));
 424
 425                 $ssl_state = (local_user() ? true : false);
 426
 427                 $live_update_div = '';
 428
 429                 $blocklist = $this->getBlocklist();
 430
 431                 $previewing = (($preview) ? ' preview ' : '');
 432
 433                 if ($mode === 'network') {
 434                         $items = $this->addChildren($items, false, $order, $uid);
 435                         if (!$update) {
 436                                 /*
 437                                 * The special div is needed for liveUpdate to kick in for this page.
 438                                 * We only launch liveUpdate if you aren't filtering in some incompatible
 439                                 * way and also you aren't writing a comment (discovered in javascript).
 440                                 */
 441                                 $live_update_div = '<div id="live-network"></div>' . "\r\n"
 442                                         . "<script> var profile_uid = " . $_SESSION['uid']
 443                                         . "; var netargs = '" . substr($this->args->getCommand(), 8)
 444                                         . '?f='
 445                                         . (!empty($_GET['contactid']) ? '&contactid=' . rawurlencode($_GET['contactid']) : '')
 446                                         . (!empty($_GET['search']) ? '&search=' . rawurlencode($_GET['search']) : '')
 447                                         . (!empty($_GET['star']) ? '&star=' . rawurlencode($_GET['star']) : '')
 448                                         . (!empty($_GET['order']) ? '&order=' . rawurlencode($_GET['order']) : '')
 449                                         . (!empty($_GET['bmark']) ? '&bmark=' . rawurlencode($_GET['bmark']) : '')
 450                                         . (!empty($_GET['liked']) ? '&liked=' . rawurlencode($_GET['liked']) : '')
 451                                         . (!empty($_GET['conv']) ? '&conv=' . rawurlencode($_GET['conv']) : '')
 452                                         . (!empty($_GET['nets']) ? '&nets=' . rawurlencode($_GET['nets']) : '')
 453                                         . (!empty($_GET['cmin']) ? '&cmin=' . rawurlencode($_GET['cmin']) : '')
 454                                         . (!empty($_GET['cmax']) ? '&cmax=' . rawurlencode($_GET['cmax']) : '')
 455                                         . (!empty($_GET['file']) ? '&file=' . rawurlencode($_GET['file']) : '')
 456
 457                                         . "'; </script>\r\n";
 458                         }
 459                 } elseif ($mode === 'profile') {
 460                         $items = $this->addChildren($items, false, $order, local_user());
 461
 462                         if (!$update) {
 463                                 $tab = !empty($_GET['tab']) ? trim($_GET['tab']) : 'posts';
 464
 465                                 if ($tab === 'posts') {
 466                                         /*
 467                                         * This is ugly, but we can't pass the profile_uid through the session to the ajax updater,
 468                                         * because browser prefetching might change it on us. We have to deliver it with the page.
 469                                         */
 470
 471                                         $live_update_div = '<div id="live-profile"></div>' . "\r\n"
 472                                                 . "<script> var profile_uid = " . $uid
 473                                                 . "; var netargs = '?f='; </script>\r\n";
 474                                 }
 475                         }
 476                 } elseif ($mode === 'notes') {
 477                         $items = $this->addChildren($items, false, $order, local_user());
 478
 479                         if (!$update) {
 480                                 $live_update_div = '<div id="live-notes"></div>' . "\r\n"
 481                                         . "<script> var profile_uid = " . local_user()
 482                                         . "; var netargs = '/?f='; </script>\r\n";
 483                         }
 484                 } elseif ($mode === 'display') {
 485                         $items = $this->addChildren($items, false, $order, $uid);
 486
 487                         if (!$update) {
 488                                 $live_update_div = '<div id="live-display"></div>' . "\r\n"
 489                                         . "<script> var profile_uid = " . Session::get('uid', 0) . ";"
 490                                         . "</script>";
 491                         }
 492                 } elseif ($mode === 'community') {
 493                         $items = $this->addChildren($items, true, $order, $uid);
 494
 495                         if (!$update) {
 496                                 $live_update_div = '<div id="live-community"></div>' . "\r\n"
 497                                         . "<script> var profile_uid = -1; var netargs = '" . substr($this->args->getCommand(), 10)
 498                                         . '?f='
 499                                         . (!empty($_GET['no_sharer']) ? '&no_sharer=' . rawurlencode($_GET['no_sharer']) : '')
 500                                         . "'; </script>\r\n";
 501                         }
 502                 } elseif ($mode === 'contacts') {
 503                         $items = $this->addChildren($items, false, $order, $uid);
 504
 505                         if (!$update) {
 506                                 $live_update_div = '<div id="live-contact"></div>' . "\r\n"
 507                                         . "<script> var profile_uid = -1; var netargs = '" . substr($this->args->getCommand(), 8)
 508                                         ."/?f='; </script>\r\n";
 509                         }
 510                 } elseif ($mode === 'search') {
 511                         $live_update_div = '<div id="live-search"></div>' . "\r\n";
 512                 }
 513
 514                 $page_dropping = ((local_user() && local_user() == $uid) ? true : false);
 515
 516                 if (!$update) {
 517                         $_SESSION['return_path'] = $this->args->getQueryString();
 518                 }
 519
 520                 $cb = ['items' => $items, 'mode' => $mode, 'update' => $update, 'preview' => $preview];
 521                 Hook::callAll('conversation_start', $cb);
 522
 523                 $items = $cb['items'];
 524
 525                 $conv_responses = [
 526                         'like'        => [],
 527                         'dislike'     => [],
 528                         'attendyes'   => [],
 529                         'attendno'    => [],
 530                         'attendmaybe' => [],
 531                         'announce'    => [],
 532                 ];
 533
 534                 if ($this->pConfig->get(local_user(), 'system', 'hide_dislike')) {
 535                         unset($conv_responses['dislike']);
 536                 }
 537
 538                 // array with html for each thread (parent+comments)
 539                 $threads   = [];
 540                 $threadsid = -1;
 541
 542                 $page_template     = Renderer::getMarkupTemplate("conversation.tpl");
 543                 $formSecurityToken = BaseModule::getFormSecurityToken('contact_action');
 544
 545                 if (!empty($items)) {
 546                         if (in_array($mode, ['community', 'contacts', 'profile'])) {
 547                                 $writable = true;
 548                         } else {
 549                                 $writable = ($items[0]['uid'] == 0) && in_array($items[0]['network'], Protocol::FEDERATED);
 550                         }
 551
 552                         if (!local_user()) {
 553                                 $writable = false;
 554                         }
 555
 556                         if (in_array($mode, ['filed', 'search', 'contact-posts'])) {
 557
 558                                 /*
 559                                 * "New Item View" on network page or search page results
 560                                 * - just loop through the items and format them minimally for display
 561                                 */
 562
 563                                 $tpl = 'search_item.tpl';
 564
 565                                 $uriids = [];
 566
 567                                 foreach ($items as $item) {
 568                                         if (in_array($item['uri-id'], $uriids)) {
 569                                                 continue;
 570                                         }
 571
 572                                         $uriids[] = $item['uri-id'];
 573
 574                                         if (!$this->item->visibleActivity($item)) {
 575                                                 continue;
 576                                         }
 577
 578                                         if (in_array($item['author-id'], $blocklist)) {
 579                                                 continue;
 580                                         }
 581
 582                                         $threadsid++;
 583
 584                                         // prevent private email from leaking.
 585                                         if ($item['network'] === Protocol::MAIL && local_user() != $item['uid']) {
 586                                                 continue;
 587                                         }
 588
 589                                         $profile_name = $item['author-name'];
 590                                         if (!empty($item['author-link']) && empty($item['author-name'])) {
 591                                                 $profile_name = $item['author-link'];
 592                                         }
 593
 594                                         $tags = Tag::populateFromItem($item);
 595
 596                                         $author       = ['uid' => 0, 'id' => $item['author-id'], 'network' => $item['author-network'], 'url' => $item['author-link']];
 597                                         $profile_link = Contact::magicLinkByContact($author);
 598
 599                                         $sparkle = '';
 600                                         if (strpos($profile_link, 'redir/') === 0) {
 601                                                 $sparkle = ' sparkle';
 602                                         }
 603
 604                                         $locate = ['location' => $item['location'], 'coord' => $item['coord'], 'html' => ''];
 605                                         Hook::callAll('render_location', $locate);
 606                                         $location_html = $locate['html'] ?: Strings::escapeHtml($locate['location'] ?: $locate['coord'] ?: '');
 607
 608                                         $this->item->localize($item);
 609                                         if ($mode === 'filed') {
 610                                                 $dropping = true;
 611                                         } else {
 612                                                 $dropping = false;
 613                                         }
 614
 615                                         $drop = [
 616                                                 'dropping' => $dropping,
 617                                                 'pagedrop' => $page_dropping,
 618                                                 'select'   => $this->l10n->t('Select'),
 619                                                 'delete'   => $this->l10n->t('Delete'),
 620                                         ];
 621
 622                                         $likebuttons = [
 623                                                 'like'     => null,
 624                                                 'dislike'  => null,
 625                                                 'share'    => null,
 626                                                 'announce' => null,
 627                                         ];
 628
 629                                         if ($this->pConfig->get(local_user(), 'system', 'hide_dislike')) {
 630                                                 unset($likebuttons['dislike']);
 631                                         }
 632
 633                                         $body_html = ItemModel::prepareBody($item, true, $preview);
 634
 635                                         list($categories, $folders) = $this->item->determineCategoriesTerms($item, local_user());
 636
 637                                         if (!empty($item['content-warning']) && $this->pConfig->get(local_user(), 'system', 'disable_cw', false)) {
 638                                                 $title = ucfirst($item['content-warning']);
 639                                         } else {
 640                                                 $title = $item['title'];
 641                                         }
 642
 643                                         $tmp_item = [
 644                                                 'template'             => $tpl,
 645                                                 'id'                   => ($preview ? 'P0' : $item['id']),
 646                                                 'guid'                 => ($preview ? 'Q0' : $item['guid']),
 647                                                 'commented'            => $item['commented'],
 648                                                 'received'             => $item['received'],
 649                                                 'created_date'         => $item['created'],
 650                                                 'uriid'                => $item['uri-id'],
 651                                                 'network'              => $item['network'],
 652                                                 'network_name'         => ContactSelector::networkToName($item['author-network'], $item['author-link'], $item['network']),
 653                                                 'network_icon'         => ContactSelector::networkToIcon($item['network'], $item['author-link']),
 654                                                 'linktitle'            => $this->l10n->t('View %s\'s profile @ %s', $profile_name, $item['author-link']),
 655                                                 'profile_url'          => $profile_link,
 656                                                 'item_photo_menu_html' => $this->item->photoMenu($item, $formSecurityToken),
 657                                                 'name'                 => $profile_name,
 658                                                 'sparkle'              => $sparkle,
 659                                                 'lock'                 => false,
 660                                                 'thumb'                => $this->baseURL->remove(Contact::getAvatarUrlForUrl($item['author-link'], $item['uid'], Proxy::SIZE_THUMB)),
 661                                                 'title'                => $title,
 662                                                 'body_html'            => $body_html,
 663                                                 'tags'                 => $tags['tags'],
 664                                                 'hashtags'             => $tags['hashtags'],
 665                                                 'mentions'             => $tags['mentions'],
 666                                                 'implicit_mentions'    => $tags['implicit_mentions'],
 667                                                 'txt_cats'             => $this->l10n->t('Categories:'),
 668                                                 'txt_folders'          => $this->l10n->t('Filed under:'),
 669                                                 'has_cats'             => ((count($categories)) ? 'true' : ''),
 670                                                 'has_folders'          => ((count($folders)) ? 'true' : ''),
 671                                                 'categories'           => $categories,
 672                                                 'folders'              => $folders,
 673                                                 'text'                 => strip_tags($body_html),
 674                                                 'localtime'            => DateTimeFormat::local($item['created'], 'r'),
 675                                                 'ago'                  => (($item['app']) ? $this->l10n->t('%s from %s', Temporal::getRelativeDate($item['created']), $item['app']) : Temporal::getRelativeDate($item['created'])),
 676                                                 'location_html'        => $location_html,
 677                                                 'indent'               => '',
 678                                                 'owner_name'           => '',
 679                                                 'owner_url'            => '',
 680                                                 'owner_photo'          => $this->baseURL->remove(Contact::getAvatarUrlForUrl($item['owner-link'], $item['uid'], Proxy::SIZE_THUMB)),
 681                                                 'plink'                => ItemModel::getPlink($item),
 682                                                 'edpost'               => false,
 683                                                 'isstarred'            => 'unstarred',
 684                                                 'star'                 => false,
 685                                                 'drop'                 => $drop,
 686                                                 'vote'                 => $likebuttons,
 687                                                 'like_html'            => '',
 688                                                 'dislike_html '        => '',
 689                                                 'comment_html'         => '',
 690                                                 'conv'                 => ($preview ? '' : ['href' => 'display/' . $item['guid'], 'title'=> $this->l10n->t('View in context')]),
 691                                                 'previewing'           => $previewing,
 692                                                 'wait'                 => $this->l10n->t('Please wait'),
 693                                                 'thread_level'         => 1,
 694                                         ];
 695
 696                                         $arr = ['item' => $item, 'output' => $tmp_item];
 697                                         Hook::callAll('display_item', $arr);
 698
 699                                         $threads[$threadsid]['id']      = $item['id'];
 700                                         $threads[$threadsid]['network'] = $item['network'];
 701                                         $threads[$threadsid]['items']   = [$arr['output']];
 702
 703                                 }
 704                         } else {
 705                                 // Normal View
 706                                 $page_template = Renderer::getMarkupTemplate("threaded_conversation.tpl");
 707
 708                                 $conv = new Thread($mode, $preview, $writable);
 709
 710                                 /*
 711                                 * get all the topmost parents
 712                                 * this shouldn't be needed, as we should have only them in our array
 713                                 * But for now, this array respects the old style, just in case
 714                                 */
 715                                 foreach ($items as $item) {
 716                                         if (in_array($item['author-id'], $blocklist)) {
 717                                                 continue;
 718                                         }
 719
 720                                         // Can we put this after the visibility check?
 721                                         $this->builtinActivityPuller($item, $conv_responses);
 722
 723                                         // Only add what is visible
 724                                         if ($item['network'] === Protocol::MAIL && local_user() != $item['uid']) {
 725                                                 continue;
 726                                         }
 727
 728                                         if (!$this->item->visibleActivity($item)) {
 729                                                 continue;
 730                                         }
 731
 732                                         /// @todo Check if this call is needed or not
 733                                         $arr = ['item' => $item];
 734                                         Hook::callAll('display_item', $arr);
 735
 736                                         $item['pagedrop'] = $page_dropping;
 737
 738                                         if ($item['gravity'] == GRAVITY_PARENT) {
 739                                                 $item_object = new PostObject($item);
 740                                                 $conv->addParent($item_object);
 741                                         }
 742                                 }
 743
 744                                 $threads = $conv->getTemplateData($conv_responses, $formSecurityToken);
 745                                 if (!$threads) {
 746                                         $this->logger->info('[ERROR] conversation : Failed to get template data.');
 747                                         $threads = [];
 748                                 }
 749                         }
 750                 }
 751
 752                 $o = Renderer::replaceMacros($page_template, [
 753                         '$baseurl'     => $this->baseURL->get($ssl_state),
 754                         '$return_path' => $this->args->getQueryString(),
 755                         '$live_update' => $live_update_div,
 756                         '$remove'      => $this->l10n->t('remove'),
 757                         '$mode'        => $mode,
 758                         '$update'      => $update,
 759                         '$threads'     => $threads,
 760                         '$dropping'    => ($page_dropping ? $this->l10n->t('Delete Selected Items') : false),
 761                 ]);
 762
 763                 $this->profiler->stopRecording();
 764                 return $o;
 765         }
 766
 767         private function getBlocklist()
 768         {
 769                 if (!local_user()) {
 770                         return [];
 771                 }
 772
 773                 $str_blocked = str_replace(["\n", "\r"], ",", $this->pConfig->get(local_user(), 'system', 'blocked'));
 774                 if (empty($str_blocked)) {
 775                         return [];
 776                 }
 777
 778                 $blocklist = [];
 779
 780                 foreach (explode(',', $str_blocked) as $entry) {
 781                         $cid = Contact::getIdForURL(trim($entry), 0, false);
 782                         if (!empty($cid)) {
 783                                 $blocklist[] = $cid;
 784                         }
 785                 }
 786
 787                 return $blocklist;
 788         }
 789
 790         /**
 791          * Adds some information (Causer, post reason, direction) to the fetched post row.
 792          *
 793          * @param array   $row      Post row
 794          * @param array   $activity Contact data of the resharer
 795          *
 796          * @return array items with parents and comments
 797          */
 798         private function addRowInformation(array $row, array $activity)
 799         {
 800                 $this->profiler->startRecording('rendering');
 801
 802                 if ($row['uid'] == 0) {
 803                         $row['writable'] = in_array($row['network'], Protocol::FEDERATED);
 804                 }
 805
 806                 if (!empty($activity)) {
 807                         if (($row['gravity'] == GRAVITY_PARENT)) {
 808                                 $row['post-reason'] = ItemModel::PR_ANNOUNCEMENT;
 809
 810                                 $row     = array_merge($row, $activity);
 811                                 $contact = Contact::getById($activity['causer-id'], ['url', 'name', 'thumb']);
 812
 813                                 $row['causer-link']   = $contact['url'];
 814                                 $row['causer-avatar'] = $contact['thumb'];
 815                                 $row['causer-name']   = $contact['name'];
 816                         } elseif (($row['gravity'] == GRAVITY_ACTIVITY) && ($row['verb'] == Activity::ANNOUNCE) &&
 817                                 ($row['author-id'] == $activity['causer-id'])) {
 818                                 return $row;
 819                         }
 820                 }
 821
 822                 switch ($row['post-reason']) {
 823                         case ItemModel::PR_TO:
 824                                 $row['direction'] = ['direction' => 7, 'title' => $this->l10n->t('You had been addressed (%s).', 'to')];
 825                                 break;
 826                         case ItemModel::PR_CC:
 827                                 $row['direction'] = ['direction' => 7, 'title' => $this->l10n->t('You had been addressed (%s).', 'cc')];
 828                                 break;
 829                         case ItemModel::PR_BTO:
 830                                 $row['direction'] = ['direction' => 7, 'title' => $this->l10n->t('You had been addressed (%s).', 'bto')];
 831                                 break;
 832                         case ItemModel::PR_BCC:
 833                                 $row['direction'] = ['direction' => 7, 'title' => $this->l10n->t('You had been addressed (%s).', 'bcc')];
 834                                 break;
 835                         case ItemModel::PR_FOLLOWER:
 836                                 $row['direction'] = ['direction' => 6, 'title' => $this->l10n->t('You are following %s.', $row['author-name'])];
 837                                 break;
 838                         case ItemModel::PR_TAG:
 839                                 $row['direction'] = ['direction' => 4, 'title' => $this->l10n->t('Tagged')];
 840                                 break;
 841                         case ItemModel::PR_ANNOUNCEMENT:
 842                                 if (!empty($row['causer-id']) && $this->pConfig->get(local_user(), 'system', 'display_resharer')) {
 843                                         $row['owner-id']     = $row['causer-id'];
 844                                         $row['owner-link']   = $row['causer-link'];
 845                                         $row['owner-avatar'] = $row['causer-avatar'];
 846                                         $row['owner-name']   = $row['causer-name'];
 847                                 }
 848
 849                                 if (($row['gravity'] == GRAVITY_PARENT) && !empty($row['causer-id'])) {
 850                                         $causer = ['uid' => 0, 'id' => $row['causer-id'],
 851                                                 'network' => $row['causer-network'], 'url' => $row['causer-link']];
 852                                         $row['reshared'] = $this->l10n->t('%s reshared this.', '<a href="'. htmlentities(Contact::magicLinkByContact($causer)) .'">' . htmlentities($row['causer-name']) . '</a>');
 853                                 }
 854                                 $row['direction'] = ['direction' => 3, 'title' => (empty($row['causer-id']) ? $this->l10n->t('Reshared') : $this->l10n->t('Reshared by %s <%s>', $row['causer-name'], $row['causer-link']))];
 855                                 break;
 856                         case ItemModel::PR_COMMENT:
 857                                 $row['direction'] = ['direction' => 5, 'title' => $this->l10n->t('%s is participating in this thread.', $row['author-name'])];
 858                                 break;
 859                         case ItemModel::PR_STORED:
 860                                 $row['direction'] = ['direction' => 8, 'title' => $this->l10n->t('Stored')];
 861                                 break;
 862                         case ItemModel::PR_GLOBAL:
 863                                 $row['direction'] = ['direction' => 9, 'title' => $this->l10n->t('Global')];
 864                                 break;
 865                         case ItemModel::PR_RELAY:
 866                                 $row['direction'] = ['direction' => 10, 'title' => (empty($row['causer-id']) ? $this->l10n->t('Relayed') : $this->l10n->t('Relayed by %s <%s>', $row['causer-name'], $row['causer-link']))];
 867                                 break;
 868                         case ItemModel::PR_FETCHED:
 869                                 $row['direction'] = ['direction' => 2, 'title' => (empty($row['causer-id']) ? $this->l10n->t('Fetched') : $this->l10n->t('Fetched because of %s <%s>', $row['causer-name'], $row['causer-link']))];
 870                                 break;
 871                 }
 872
 873                 $this->profiler->stopRecording();
 874                 return $row;
 875         }
 876
 877         /**
 878          * Add comments to top level entries that had been fetched before
 879          *
 880          * The system will fetch the comments for the local user whenever possible.
 881          * This behaviour is currently needed to allow commenting on Friendica posts.
 882          *
 883          * @param array $parents Parent items
 884          *
 885          * @param       $block_authors
 886          * @param       $order
 887          * @param       $uid
 888          * @return array items with parents and comments
 889          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 890          */
 891         private function addChildren(array $parents, $block_authors, $order, $uid)
 892         {
 893                 $this->profiler->startRecording('rendering');
 894                 if (count($parents) > 1) {
 895                         $max_comments = $this->config->get('system', 'max_comments', 100);
 896                 } else {
 897                         $max_comments = $this->config->get('system', 'max_display_comments', 1000);
 898                 }
 899
 900                 $params = ['order' => ['uri-id' => true, 'uid' => true]];
 901
 902                 $activities      = [];
 903                 $uriids          = [];
 904                 $commentcounter  = [];
 905                 $activitycounter = [];
 906
 907                 foreach ($parents as $parent) {
 908                         if (!empty($parent['thr-parent-id']) && !empty($parent['gravity']) && ($parent['gravity'] == GRAVITY_ACTIVITY)) {
 909                                 $uriid = $parent['thr-parent-id'];
 910                                 if (!empty($parent['author-id'])) {
 911                                         $activities[$uriid] = ['causer-id' => $parent['author-id']];
 912                                         foreach (['commented', 'received', 'created'] as $orderfields) {
 913                                                 if (!empty($parent[$orderfields])) {
 914                                                         $activities[$uriid][$orderfields] = $parent[$orderfields];
 915                                                 }
 916                                         }
 917                                 }
 918                         } else {
 919                                 $uriid = $parent['uri-id'];
 920                         }
 921                         $uriids[] = $uriid;
 922
 923                         $commentcounter[$uriid]  = 0;
 924                         $activitycounter[$uriid] = 0;
 925                 }
 926
 927                 $condition = ['parent-uri-id' => $uriids];
 928                 if ($block_authors) {
 929                         $condition['author-hidden'] = false;
 930                 }
 931
 932                 $condition = DBA::mergeConditions($condition,
 933                         ["`uid` IN (0, ?) AND (`vid` != ? OR `vid` IS NULL)", $uid, Verb::getID(Activity::FOLLOW)]);
 934
 935                 $thread_items = Post::selectForUser(local_user(), array_merge(ItemModel::DISPLAY_FIELDLIST, ['pinned', 'contact-uid', 'gravity', 'post-type', 'post-reason']), $condition, $params);
 936
 937                 $items = [];
 938
 939                 while ($row = Post::fetch($thread_items)) {
 940                         if (!empty($items[$row['uri-id']]) && ($row['uid'] == 0)) {
 941                                 continue;
 942                         }
 943
 944                         if ($max_comments > 0) {
 945                                 if (($row['gravity'] == GRAVITY_COMMENT) && (++$commentcounter[$row['parent-uri-id']] > $max_comments)) {
 946                                         continue;
 947                                 }
 948                                 if (($row['gravity'] == GRAVITY_ACTIVITY) && (++$activitycounter[$row['parent-uri-id']] > $max_comments)) {
 949                                         continue;
 950                                 }
 951                         }
 952                         $items[$row['uri-id']] = $this->addRowInformation($row, $activities[$row['uri-id']] ?? []);
 953                 }
 954
 955                 DBA::close($thread_items);
 956
 957                 $items = $this->convSort($items, $order);
 958
 959                 $this->profiler->stopRecording();
 960                 return $items;
 961         }
 962
 963         /**
 964          * Plucks the children of the given parent from a given item list.
 965          *
 966          * @param array $item_list
 967          * @param array $parent
 968          * @param bool  $recursive
 969          * @return array
 970          */
 971         private function getItemChildren(array &$item_list, array $parent, $recursive = true)
 972         {
 973                 $this->profiler->startRecording('rendering');
 974                 $children = [];
 975                 foreach ($item_list as $i => $item) {
 976                         if ($item['gravity'] != GRAVITY_PARENT) {
 977                                 if ($recursive) {
 978                                         // Fallback to parent-uri if thr-parent is not set
 979                                         $thr_parent = $item['thr-parent-id'];
 980                                         if ($thr_parent == '') {
 981                                                 $thr_parent = $item['parent-uri-id'];
 982                                         }
 983
 984                                         if ($thr_parent == $parent['uri-id']) {
 985                                                 $item['children'] = $this->getItemChildren($item_list, $item);
 986
 987                                                 $children[] = $item;
 988                                                 unset($item_list[$i]);
 989                                         }
 990                                 } elseif ($item['parent-uri-id'] == $parent['uri-id']) {
 991                                         $children[] = $item;
 992                                         unset($item_list[$i]);
 993                                 }
 994                         }
 995                 }
 996                 $this->profiler->stopRecording();
 997                 return $children;
 998         }
 999
1000         /**
1001          * Recursively sorts a tree-like item array
1002          *
1003          * @param array $items
1004          * @return array
1005          */
1006         private function sortItemChildren(array $items)
1007         {
1008                 $this->profiler->startRecording('rendering');
1009                 $result = $items;
1010                 usort($result, [$this, 'sortThrReceivedRev']);
1011                 foreach ($result as $k => $i) {
1012                         if (isset($result[$k]['children'])) {
1013                                 $result[$k]['children'] = $this->sortItemChildren($result[$k]['children']);
1014                         }
1015                 }
1016                 $this->profiler->stopRecording();
1017                 return $result;
1018         }
1019
1020         /**
1021          * Recursively add all children items at the top level of a list
1022          *
1023          * @param array $children List of items to append
1024          * @param array $item_list
1025          */
1026         private function addChildrenToList(array $children, array &$item_list)
1027         {
1028                 foreach ($children as $child) {
1029                         $item_list[] = $child;
1030                         if (isset($child['children'])) {
1031                                 $this->addChildrenToList($child['children'], $item_list);
1032                         }
1033                 }
1034         }
1035
1036         /**
1037          * Selectively flattens a tree-like item structure to prevent threading stairs
1038          *
1039          * This recursive function takes the item tree structure created by conv_sort() and
1040          * flatten the extraneous depth levels when people reply sequentially, removing the
1041          * stairs effect in threaded conversations limiting the available content width.
1042          *
1043          * The basic principle is the following: if a post item has only one reply and is
1044          * the last reply of its parent, then the reply is moved to the parent.
1045          *
1046          * This process is rendered somewhat more complicated because items can be either
1047          * replies or likes, and these don't factor at all in the reply count/last reply.
1048          *
1049          * @param array $parent A tree-like array of items
1050          * @return array
1051          */
1052         private function smartFlattenConversation(array $parent)
1053         {
1054                 $this->profiler->startRecording('rendering');
1055                 if (!isset($parent['children']) || count($parent['children']) == 0) {
1056                         $this->profiler->stopRecording();
1057                         return $parent;
1058                 }
1059
1060                 // We use a for loop to ensure we process the newly-moved items
1061                 for ($i = 0; $i < count($parent['children']); $i++) {
1062                         $child = $parent['children'][$i];
1063
1064                         if (isset($child['children']) && count($child['children'])) {
1065                                 // This helps counting only the regular posts
1066                                 $count_post_closure = function ($var) {
1067                                         $this->profiler->stopRecording();
1068                                         return $var['verb'] === Activity::POST;
1069                                 };
1070
1071                                 $child_post_count = count(array_filter($child['children'], $count_post_closure));
1072
1073                                 $remaining_post_count = count(array_filter(array_slice($parent['children'], $i), $count_post_closure));
1074
1075                                 // If there's only one child's children post and this is the last child post
1076                                 if ($child_post_count == 1 && $remaining_post_count == 1) {
1077
1078                                         // Searches the post item in the children
1079                                         $j = 0;
1080                                         while ($child['children'][$j]['verb'] !== Activity::POST && $j < count($child['children'])) {
1081                                                 $j ++;
1082                                         }
1083
1084                                         $moved_item = $child['children'][$j];
1085                                         unset($parent['children'][$i]['children'][$j]);
1086                                         $parent['children'][] = $moved_item;
1087                                 } else {
1088                                         $parent['children'][$i] = $this->smartFlattenConversation($child);
1089                                 }
1090                         }
1091                 }
1092
1093                 $this->profiler->stopRecording();
1094                 return $parent;
1095         }
1096
1097         /**
1098          * Expands a flat list of items into corresponding tree-like conversation structures.
1099          *
1100          * sort the top-level posts either on "received" or "commented", and finally
1101          * append all the items at the top level (???)
1102          *
1103          * @param array  $item_list A list of items belonging to one or more conversations
1104          * @param string $order     Either on "received" or "commented"
1105          * @return array
1106          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1107          */
1108         private function convSort(array $item_list, $order)
1109         {
1110                 $this->profiler->startRecording('rendering');
1111                 $parents = [];
1112
1113                 if (!(is_array($item_list) && count($item_list))) {
1114                         $this->profiler->stopRecording();
1115                         return $parents;
1116                 }
1117
1118                 $blocklist = $this->getBlocklist();
1119
1120                 $item_array = [];
1121
1122                 // Dedupes the item list on the uri to prevent infinite loops
1123                 foreach ($item_list as $item) {
1124                         if (in_array($item['author-id'], $blocklist)) {
1125                                 continue;
1126                         }
1127
1128                         $item_array[$item['uri-id']] = $item;
1129                 }
1130
1131                 // Extract the top level items
1132                 foreach ($item_array as $item) {
1133                         if ($item['gravity'] == GRAVITY_PARENT) {
1134                                 $parents[] = $item;
1135                         }
1136                 }
1137
1138                 if (stristr($order, 'pinned_received')) {
1139                         usort($parents, [$this, 'sortThrPinnedReceived']);
1140                 } elseif (stristr($order, 'received')) {
1141                         usort($parents, [$this, 'sortThrReceived']);
1142                 } elseif (stristr($order, 'commented')) {
1143                         usort($parents, [$this, 'sortThrCommented']);
1144                 }
1145
1146                 /*
1147                 * Plucks children from the item_array, second pass collects eventual orphan
1148                 * items and add them as children of their top-level post.
1149                 */
1150                 foreach ($parents as $i => $parent) {
1151                         $parents[$i]['children'] = array_merge($this->getItemChildren($item_array, $parent, true),
1152                                 $this->getItemChildren($item_array, $parent, false));
1153                 }
1154
1155                 foreach ($parents as $i => $parent) {
1156                         $parents[$i]['children'] = $this->sortItemChildren($parents[$i]['children']);
1157                 }
1158
1159                 if (!$this->pConfig->get(local_user(), 'system', 'no_smart_threading', 0)) {
1160                         foreach ($parents as $i => $parent) {
1161                                 $parents[$i] = $this->smartFlattenConversation($parent);
1162                         }
1163                 }
1164
1165                 /// @TODO: Stop recusrsively adding all children back to the top level (!!!)
1166                 /// However, this apparently ensures responses (likes, attendance) display (?!)
1167                 foreach ($parents as $parent) {
1168                         if (count($parent['children'])) {
1169                                 $this->addChildrenToList($parent['children'], $parents);
1170                         }
1171                 }
1172
1173                 $this->profiler->stopRecording();
1174                 return $parents;
1175         }
1176
1177         /**
1178          * usort() callback to sort item arrays by pinned and the received key
1179          *
1180          * @param array $a
1181          * @param array $b
1182          * @return int
1183          */
1184         private function sortThrPinnedReceived(array $a, array $b)
1185         {
1186                 if ($b['pinned'] && !$a['pinned']) {
1187                         return 1;
1188                 } elseif (!$b['pinned'] && $a['pinned']) {
1189                         return -1;
1190                 }
1191
1192                 return strcmp($b['received'], $a['received']);
1193         }
1194
1195         /**
1196          * usort() callback to sort item arrays by the received key
1197          *
1198          * @param array $a
1199          * @param array $b
1200          * @return int
1201          */
1202         private function sortThrReceived(array $a, array $b)
1203         {
1204                 return strcmp($b['received'], $a['received']);
1205         }
1206
1207         /**
1208          * usort() callback to reverse sort item arrays by the received key
1209          *
1210          * @param array $a
1211          * @param array $b
1212          * @return int
1213          */
1214         private function sortThrReceivedRev(array $a, array $b)
1215         {
1216                 return strcmp($a['received'], $b['received']);
1217         }
1218
1219         /**
1220          * usort() callback to sort item arrays by the commented key
1221          *
1222          * @param array $a
1223          * @param array $b
1224          * @return int
1225          */
1226         private function sortThrCommented(array $a, array $b)
1227         {
1228                 return strcmp($b['commented'], $a['commented']);
1229         }
1230 }