include/conversation.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 use Friendica\App;
  23 use Friendica\Content\ContactSelector;
  24 use Friendica\Content\Feature;
  25 use Friendica\Content\Text\BBCode;
  26 use Friendica\Core\Hook;
  27 use Friendica\Core\Logger;
  28 use Friendica\Core\Protocol;
  29 use Friendica\Core\Renderer;
  30 use Friendica\Core\Session;
  31 use Friendica\Database\DBA;
  32 use Friendica\DI;
  33 use Friendica\Model\Contact;
  34 use Friendica\Model\Item;
  35 use Friendica\Model\Profile;
  36 use Friendica\Model\Tag;
  37 use Friendica\Model\Verb;
  38 use Friendica\Object\Post;
  39 use Friendica\Object\Thread;
  40 use Friendica\Protocol\Activity;
  41 use Friendica\Util\Crypto;
  42 use Friendica\Util\DateTimeFormat;
  43 use Friendica\Util\Strings;
  44 use Friendica\Util\Temporal;
  45 use Friendica\Util\XML;
  46
  47 function item_extract_images($body) {
  48
  49         $saved_image = [];
  50         $orig_body = $body;
  51         $new_body = '';
  52
  53         $cnt = 0;
  54         $img_start = strpos($orig_body, '[img');
  55         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
  56         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
  57         while (($img_st_close !== false) && ($img_end !== false)) {
  58
  59                 $img_st_close++; // make it point to AFTER the closing bracket
  60                 $img_end += $img_start;
  61
  62                 if (!strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
  63                         // This is an embedded image
  64
  65                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
  66                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[!#saved_image' . $cnt . '#!]';
  67
  68                         $cnt++;
  69                 } else {
  70                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
  71                 }
  72
  73                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
  74
  75                 if ($orig_body === false) {
  76                         // in case the body ends on a closing image tag
  77                         $orig_body = '';
  78                 }
  79
  80                 $img_start = strpos($orig_body, '[img');
  81                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
  82                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
  83         }
  84
  85         $new_body = $new_body . $orig_body;
  86
  87         return ['body' => $new_body, 'images' => $saved_image];
  88 }
  89
  90 function item_redir_and_replace_images($body, $images, $cid) {
  91
  92         $origbody = $body;
  93         $newbody = '';
  94
  95         $cnt = 1;
  96         $pos = BBCode::getTagPosition($origbody, 'url', 0);
  97         while ($pos !== false && $cnt < 1000) {
  98
  99                 $search = '/\[url\=(.*?)\]\[!#saved_image([0-9]*)#!\]\[\/url\]' . '/is';
 100                 $replace = '[url=' . DI::baseUrl() . '/redir/' . $cid
 101                                    . '?url=' . '$1' . '][!#saved_image' . '$2' .'#!][/url]';
 102
 103                 $newbody .= substr($origbody, 0, $pos['start']['open']);
 104                 $subject = substr($origbody, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 105                 $origbody = substr($origbody, $pos['end']['close']);
 106                 if ($origbody === false) {
 107                         $origbody = '';
 108                 }
 109
 110                 $subject = preg_replace($search, $replace, $subject);
 111                 $newbody .= $subject;
 112
 113                 $cnt++;
 114                 // Isn't this supposed to use $cnt value for $occurrences? - @MrPetovan
 115                 $pos = BBCode::getTagPosition($origbody, 'url', 0);
 116         }
 117         $newbody .= $origbody;
 118
 119         $cnt = 0;
 120         foreach ($images as $image) {
 121                 /*
 122                  * We're depending on the property of 'foreach' (specified on the PHP website) that
 123                  * it loops over the array starting from the first element and going sequentially
 124                  * to the last element.
 125                  */
 126                 $newbody = str_replace('[!#saved_image' . $cnt . '#!]', '[img]' . $image . '[/img]', $newbody);
 127                 $cnt++;
 128         }
 129         return $newbody;
 130 }
 131
 132 /**
 133  * Render actions localized
 134  *
 135  * @param $item
 136  * @throws ImagickException
 137  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 138  */
 139 function localize_item(&$item)
 140 {
 141         $extracted = item_extract_images($item['body']);
 142         if ($extracted['images']) {
 143                 $item['body'] = item_redir_and_replace_images($extracted['body'], $extracted['images'], $item['contact-id']);
 144         }
 145
 146         /// @todo The following functionality needs to be cleaned up.
 147         if (!empty($item['verb'])) {
 148                 $activity = DI::activity();
 149
 150                 $xmlhead = "<" . "?xml version='1.0' encoding='UTF-8' ?" . ">";
 151
 152                 if (stristr($item['verb'], Activity::POKE)) {
 153                         $verb = urldecode(substr($item['verb'], strpos($item['verb'],'#') + 1));
 154                         if (!$verb) {
 155                                 return;
 156                         }
 157                         if ($item['object-type'] == "" || $item['object-type'] !== Activity\ObjectType::PERSON) {
 158                                 return;
 159                         }
 160
 161                         $Aname = $item['author-name'];
 162                         $Alink = $item['author-link'];
 163
 164                         $obj = XML::parseString($xmlhead . $item['object']);
 165
 166                         $Bname = $obj->title;
 167                         $Blink = $obj->id;
 168                         $Bphoto = "";
 169
 170                         foreach ($obj->link as $l) {
 171                                 $atts = $l->attributes();
 172                                 switch ($atts['rel']) {
 173                                         case "alternate": $Blink = $atts['href'];
 174                                         case "photo": $Bphoto = $atts['href'];
 175                                 }
 176                         }
 177
 178                         $A = '[url=' . Contact::magicLink($Alink) . ']' . $Aname . '[/url]';
 179                         $B = '[url=' . Contact::magicLink($Blink) . ']' . $Bname . '[/url]';
 180                         if ($Bphoto != "") {
 181                                 $Bphoto = '[url=' . Contact::magicLink($Blink) . '][img=80x80]' . $Bphoto . '[/img][/url]';
 182                         }
 183
 184                         /*
 185                          * we can't have a translation string with three positions but no distinguishable text
 186                          * So here is the translate string.
 187                          */
 188                         $txt = DI::l10n()->t('%1$s poked %2$s');
 189
 190                         // now translate the verb
 191                         $poked_t = trim(sprintf($txt, '', ''));
 192                         $txt = str_replace($poked_t, DI::l10n()->t($verb), $txt);
 193
 194                         // then do the sprintf on the translation string
 195
 196                         $item['body'] = sprintf($txt, $A, $B) . "\n\n\n" . $Bphoto;
 197
 198                 }
 199
 200                 if ($activity->match($item['verb'], Activity::TAG)) {
 201                         $fields = ['author-id', 'author-link', 'author-name', 'author-network',
 202                                 'verb', 'object-type', 'resource-id', 'body', 'plink'];
 203                         $obj = Item::selectFirst($fields, ['uri' => $item['parent-uri']]);
 204                         if (!DBA::isResult($obj)) {
 205                                 return;
 206                         }
 207
 208                         $author_arr = ['uid' => 0, 'id' => $item['author-id'],
 209                                 'network' => $item['author-network'], 'url' => $item['author-link']];
 210                         $author  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $item['author-name'] . '[/url]';
 211
 212                         $author_arr = ['uid' => 0, 'id' => $obj['author-id'],
 213                                 'network' => $obj['author-network'], 'url' => $obj['author-link']];
 214                         $objauthor  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $obj['author-name'] . '[/url]';
 215
 216                         switch ($obj['verb']) {
 217                                 case Activity::POST:
 218                                         switch ($obj['object-type']) {
 219                                                 case Activity\ObjectType::EVENT:
 220                                                         $post_type = DI::l10n()->t('event');
 221                                                         break;
 222                                                 default:
 223                                                         $post_type = DI::l10n()->t('status');
 224                                         }
 225                                         break;
 226                                 default:
 227                                         if ($obj['resource-id']) {
 228                                                 $post_type = DI::l10n()->t('photo');
 229                                                 $m=[]; preg_match("/\[url=([^]]*)\]/", $obj['body'], $m);
 230                                                 $rr['plink'] = $m[1];
 231                                         } else {
 232                                                 $post_type = DI::l10n()->t('status');
 233                                         }
 234                                         // Let's break everthing ... ;-)
 235                                         break;
 236                         }
 237                         $plink = '[url=' . $obj['plink'] . ']' . $post_type . '[/url]';
 238
 239                         $parsedobj = XML::parseString($xmlhead . $item['object']);
 240
 241                         $tag = sprintf('#[url=%s]%s[/url]', $parsedobj->id, $parsedobj->content);
 242                         $item['body'] = DI::l10n()->t('%1$s tagged %2$s\'s %3$s with %4$s', $author, $objauthor, $plink, $tag);
 243                 }
 244         }
 245
 246         $matches = null;
 247         if (preg_match_all('/@\[url=(.*?)\]/is', $item['body'], $matches, PREG_SET_ORDER)) {
 248                 foreach ($matches as $mtch) {
 249                         if (!strpos($mtch[1], 'zrl=')) {
 250                                 $item['body'] = str_replace($mtch[0], '@[url=' . Contact::magicLink($mtch[1]) . ']', $item['body']);
 251                         }
 252                 }
 253         }
 254
 255         // add zrl's to public images
 256         $photo_pattern = "/\[url=(.*?)\/photos\/(.*?)\/image\/(.*?)\]\[img(.*?)\]h(.*?)\[\/img\]\[\/url\]/is";
 257         if (preg_match($photo_pattern, $item['body'])) {
 258                 $photo_replace = '[url=' . Profile::zrl('$1' . '/photos/' . '$2' . '/image/' . '$3' ,true) . '][img' . '$4' . ']h' . '$5'  . '[/img][/url]';
 259                 $item['body'] = BBCode::pregReplaceInTag($photo_pattern, $photo_replace, 'url', $item['body']);
 260         }
 261
 262         // add sparkle links to appropriate permalinks
 263         $author = ['uid' => 0, 'id' => $item['author-id'],
 264                 'network' => $item['author-network'], 'url' => $item['author-link']];
 265
 266         // Only create a redirection to a magic link when logged in
 267         if (!empty($item['plink']) && Session::isAuthenticated()) {
 268                 $item['plink'] = Contact::magicLinkByContact($author, $item['plink']);
 269         }
 270 }
 271
 272 /**
 273  * Count the total of comments on this item and its desendants
 274  * @TODO proper type-hint + doc-tag
 275  * @param $item
 276  * @return int
 277  */
 278 function count_descendants($item) {
 279         $total = count($item['children']);
 280
 281         if ($total > 0) {
 282                 foreach ($item['children'] as $child) {
 283                         if (!visible_activity($child)) {
 284                                 $total --;
 285                         }
 286                         $total += count_descendants($child);
 287                 }
 288         }
 289
 290         return $total;
 291 }
 292
 293 function visible_activity($item) {
 294
 295         $activity = DI::activity();
 296
 297         if (empty($item['verb']) || $activity->isHidden($item['verb'])) {
 298                 return false;
 299         }
 300
 301         // @TODO below if() block can be rewritten to a single line: $isVisible = allConditionsHere;
 302         if ($activity->match($item['verb'], Activity::FOLLOW) &&
 303             $item['object-type'] === Activity\ObjectType::NOTE &&
 304             empty($item['self']) &&
 305             $item['uid'] == local_user()) {
 306                 return false;
 307         }
 308
 309         return true;
 310 }
 311
 312 function conv_get_blocklist()
 313 {
 314         if (!local_user()) {
 315                 return [];
 316         }
 317
 318         $str_blocked = str_replace(["\n", "\r"], ",", DI::pConfig()->get(local_user(), 'system', 'blocked'));
 319         if (empty($str_blocked)) {
 320                 return [];
 321         }
 322
 323         $blocklist = [];
 324
 325         foreach (explode(',', $str_blocked) as $entry) {
 326                 // The 4th parameter guarantees that there always will be a public contact entry
 327                 $cid = Contact::getIdForURL(trim($entry), 0, false, ['url' => trim($entry)]);
 328                 if (!empty($cid)) {
 329                         $blocklist[] = $cid;
 330                 }
 331         }
 332
 333         return $blocklist;
 334 }
 335
 336 /**
 337  * "Render" a conversation or list of items for HTML display.
 338  * There are two major forms of display:
 339  *      - Sequential or unthreaded ("New Item View" or search results)
 340  *      - conversation view
 341  * The $mode parameter decides between the various renderings and also
 342  * figures out how to determine page owner and other contextual items
 343  * that are based on unique features of the calling module.
 344  * @param App    $a
 345  * @param array  $items
 346  * @param        $mode
 347  * @param        $update
 348  * @param bool   $preview
 349  * @param string $order
 350  * @param int    $uid
 351  * @return string
 352  * @throws ImagickException
 353  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 354  */
 355 function conversation(App $a, array $items, $mode, $update, $preview = false, $order = 'commented', $uid = 0)
 356 {
 357         $ssl_state = (local_user() ? true : false);
 358
 359         $profile_owner = 0;
 360         $live_update_div = '';
 361
 362         $blocklist = conv_get_blocklist();
 363
 364         $previewing = (($preview) ? ' preview ' : '');
 365
 366         if ($mode === 'network') {
 367                 $items = conversation_add_children($items, false, $order, $uid);
 368                 $profile_owner = local_user();
 369                 if (!$update) {
 370                         /*
 371                          * The special div is needed for liveUpdate to kick in for this page.
 372                          * We only launch liveUpdate if you aren't filtering in some incompatible
 373                          * way and also you aren't writing a comment (discovered in javascript).
 374                          */
 375                         $live_update_div = '<div id="live-network"></div>' . "\r\n"
 376                                 . "<script> var profile_uid = " . $_SESSION['uid']
 377                                 . "; var netargs = '" . substr(DI::args()->getCommand(), 8)
 378                                 . '?f='
 379                                 . (!empty($_GET['contactid']) ? '&contactid=' . rawurlencode($_GET['contactid']) : '')
 380                                 . (!empty($_GET['search'])    ? '&search='    . rawurlencode($_GET['search'])    : '')
 381                                 . (!empty($_GET['star'])      ? '&star='      . rawurlencode($_GET['star'])      : '')
 382                                 . (!empty($_GET['order'])     ? '&order='     . rawurlencode($_GET['order'])     : '')
 383                                 . (!empty($_GET['bmark'])     ? '&bmark='     . rawurlencode($_GET['bmark'])     : '')
 384                                 . (!empty($_GET['liked'])     ? '&liked='     . rawurlencode($_GET['liked'])     : '')
 385                                 . (!empty($_GET['conv'])      ? '&conv='      . rawurlencode($_GET['conv'])      : '')
 386                                 . (!empty($_GET['nets'])      ? '&nets='      . rawurlencode($_GET['nets'])      : '')
 387                                 . (!empty($_GET['cmin'])      ? '&cmin='      . rawurlencode($_GET['cmin'])      : '')
 388                                 . (!empty($_GET['cmax'])      ? '&cmax='      . rawurlencode($_GET['cmax'])      : '')
 389                                 . (!empty($_GET['file'])      ? '&file='      . rawurlencode($_GET['file'])      : '')
 390
 391                                 . "'; </script>\r\n";
 392                 }
 393         } elseif ($mode === 'profile') {
 394                 $items = conversation_add_children($items, false, $order, $uid);
 395                 $profile_owner = $a->profile['uid'];
 396
 397                 if (!$update) {
 398                         $tab = 'posts';
 399                         if (!empty($_GET['tab'])) {
 400                                 $tab = Strings::escapeTags(trim($_GET['tab']));
 401                         }
 402                         if ($tab === 'posts') {
 403                                 /*
 404                                  * This is ugly, but we can't pass the profile_uid through the session to the ajax updater,
 405                                  * because browser prefetching might change it on us. We have to deliver it with the page.
 406                                  */
 407
 408                                 $live_update_div = '<div id="live-profile"></div>' . "\r\n"
 409                                         . "<script> var profile_uid = " . $a->profile['uid']
 410                                         . "; var netargs = '?f='; </script>\r\n";
 411                         }
 412                 }
 413         } elseif ($mode === 'notes') {
 414                 $items = conversation_add_children($items, false, $order, local_user());
 415                 $profile_owner = local_user();
 416
 417                 if (!$update) {
 418                         $live_update_div = '<div id="live-notes"></div>' . "\r\n"
 419                                 . "<script> var profile_uid = " . local_user()
 420                                 . "; var netargs = '/?f='; </script>\r\n";
 421                 }
 422         } elseif ($mode === 'display') {
 423                 $items = conversation_add_children($items, false, $order, $uid);
 424                 $profile_owner = $a->profile['uid'];
 425
 426                 if (!$update) {
 427                         $live_update_div = '<div id="live-display"></div>' . "\r\n"
 428                                 . "<script> var profile_uid = " . Session::get('uid', 0) . ";"
 429                                 . "</script>";
 430                 }
 431         } elseif ($mode === 'community') {
 432                 $items = conversation_add_children($items, true, $order, $uid);
 433                 $profile_owner = 0;
 434
 435                 if (!$update) {
 436                         $live_update_div = '<div id="live-community"></div>' . "\r\n"
 437                                 . "<script> var profile_uid = -1; var netargs = '" . substr(DI::args()->getCommand(), 10)
 438                                 ."/?f='; </script>\r\n";
 439                 }
 440         } elseif ($mode === 'contacts') {
 441                 $items = conversation_add_children($items, false, $order, $uid);
 442                 $profile_owner = 0;
 443
 444                 if (!$update) {
 445                         $live_update_div = '<div id="live-contacts"></div>' . "\r\n"
 446                                 . "<script> var profile_uid = -1; var netargs = '" . substr(DI::args()->getCommand(), 9)
 447                                 ."/?f='; </script>\r\n";
 448                 }
 449         } elseif ($mode === 'search') {
 450                 $live_update_div = '<div id="live-search"></div>' . "\r\n";
 451         }
 452
 453         $page_dropping = ((local_user() && local_user() == $profile_owner) ? true : false);
 454
 455         if (!$update) {
 456                 $_SESSION['return_path'] = DI::args()->getQueryString();
 457         }
 458
 459         $cb = ['items' => $items, 'mode' => $mode, 'update' => $update, 'preview' => $preview];
 460         Hook::callAll('conversation_start',$cb);
 461
 462         $items = $cb['items'];
 463
 464         $conv_responses = [
 465                 'like'        => [],
 466                 'dislike'     => [],
 467                 'attendyes'   => [],
 468                 'attendno'    => [],
 469                 'attendmaybe' => [],
 470                 'announce'    => [],
 471         ];
 472
 473         if (DI::pConfig()->get(local_user(), 'system', 'hide_dislike')) {
 474                 unset($conv_responses['dislike']);
 475         }
 476
 477         // array with html for each thread (parent+comments)
 478         $threads = [];
 479         $threadsid = -1;
 480
 481         $page_template = Renderer::getMarkupTemplate("conversation.tpl");
 482
 483         if (!empty($items)) {
 484                 if (in_array($mode, ['community', 'contacts'])) {
 485                         $writable = true;
 486                 } else {
 487                         $writable = ($items[0]['uid'] == 0) && in_array($items[0]['network'], Protocol::FEDERATED);
 488                 }
 489
 490                 if (!local_user()) {
 491                         $writable = false;
 492                 }
 493
 494                 if (in_array($mode, ['network-new', 'search', 'contact-posts'])) {
 495
 496                         /*
 497                          * "New Item View" on network page or search page results
 498                          * - just loop through the items and format them minimally for display
 499                          */
 500
 501                         $tpl = 'search_item.tpl';
 502
 503                         foreach ($items as $item) {
 504
 505                                 if (!visible_activity($item)) {
 506                                         continue;
 507                                 }
 508
 509                                 if (in_array($item['author-id'], $blocklist)) {
 510                                         continue;
 511                                 }
 512
 513                                 $threadsid++;
 514
 515                                 $owner_url   = '';
 516                                 $owner_name  = '';
 517                                 $sparkle     = '';
 518
 519                                 // prevent private email from leaking.
 520                                 if ($item['network'] === Protocol::MAIL && local_user() != $item['uid']) {
 521                                         continue;
 522                                 }
 523
 524                                 $profile_name = $item['author-name'];
 525                                 if (!empty($item['author-link']) && empty($item['author-name'])) {
 526                                         $profile_name = $item['author-link'];
 527                                 }
 528
 529                                 $tags = Tag::populateFromItem($item);
 530
 531                                 $author = ['uid' => 0, 'id' => $item['author-id'],
 532                                         'network' => $item['author-network'], 'url' => $item['author-link']];
 533                                 $profile_link = Contact::magicLinkByContact($author);
 534
 535                                 if (strpos($profile_link, 'redir/') === 0) {
 536                                         $sparkle = ' sparkle';
 537                                 }
 538
 539                                 $locate = ['location' => $item['location'], 'coord' => $item['coord'], 'html' => ''];
 540                                 Hook::callAll('render_location',$locate);
 541
 542                                 $location = ((strlen($locate['html'])) ? $locate['html'] : render_location_dummy($locate));
 543
 544                                 localize_item($item);
 545                                 if ($mode === 'network-new') {
 546                                         $dropping = true;
 547                                 } else {
 548                                         $dropping = false;
 549                                 }
 550
 551                                 $drop = [
 552                                         'dropping' => $dropping,
 553                                         'pagedrop' => $page_dropping,
 554                                         'select' => DI::l10n()->t('Select'),
 555                                         'delete' => DI::l10n()->t('Delete'),
 556                                 ];
 557
 558                                 $star = false;
 559                                 $isstarred = "unstarred";
 560
 561                                 $lock = false;
 562                                 $likebuttons = [
 563                                         'like'    => null,
 564                                         'dislike' => null,
 565                                         'share'   => null,
 566                                 ];
 567
 568                                 if (DI::pConfig()->get(local_user(), 'system', 'hide_dislike')) {
 569                                         unset($likebuttons['dislike']);
 570                                 }
 571
 572                                 $body = Item::prepareBody($item, true, $preview);
 573
 574                                 list($categories, $folders) = DI::contentItem()->determineCategoriesTerms($item);
 575
 576                                 if (!empty($item['content-warning']) && DI::pConfig()->get(local_user(), 'system', 'disable_cw', false)) {
 577                                         $title = ucfirst($item['content-warning']);
 578                                 } else {
 579                                         $title = $item['title'];
 580                                 }
 581
 582                                 $tmp_item = [
 583                                         'template' => $tpl,
 584                                         'id' => ($preview ? 'P0' : $item['id']),
 585                                         'guid' => ($preview ? 'Q0' : $item['guid']),
 586                                         'network' => $item['network'],
 587                                         'network_name' => ContactSelector::networkToName($item['author-network'], $item['author-link'], $item['network']),
 588                                         'network_icon' => ContactSelector::networkToIcon($item['network'], $item['author-link']),
 589                                         'linktitle' => DI::l10n()->t('View %s\'s profile @ %s', $profile_name, $item['author-link']),
 590                                         'profile_url' => $profile_link,
 591                                         'item_photo_menu' => item_photo_menu($item),
 592                                         'name' => $profile_name,
 593                                         'sparkle' => $sparkle,
 594                                         'lock' => $lock,
 595                                         'thumb' => DI::baseUrl()->remove($item['author-avatar']),
 596                                         'title' => $title,
 597                                         'body' => $body,
 598                                         'tags' => $tags['tags'],
 599                                         'hashtags' => $tags['hashtags'],
 600                                         'mentions' => $tags['mentions'],
 601                                         'implicit_mentions' => $tags['implicit_mentions'],
 602                                         'txt_cats' => DI::l10n()->t('Categories:'),
 603                                         'txt_folders' => DI::l10n()->t('Filed under:'),
 604                                         'has_cats' => ((count($categories)) ? 'true' : ''),
 605                                         'has_folders' => ((count($folders)) ? 'true' : ''),
 606                                         'categories' => $categories,
 607                                         'folders' => $folders,
 608                                         'text' => strip_tags($body),
 609                                         'localtime' => DateTimeFormat::local($item['created'], 'r'),
 610                                         'ago' => (($item['app']) ? DI::l10n()->t('%s from %s', Temporal::getRelativeDate($item['created']),$item['app']) : Temporal::getRelativeDate($item['created'])),
 611                                         'location' => $location,
 612                                         'indent' => '',
 613                                         'owner_name' => $owner_name,
 614                                         'owner_url' => $owner_url,
 615                                         'owner_photo' => DI::baseUrl()->remove($item['owner-avatar']),
 616                                         'plink' => Item::getPlink($item),
 617                                         'edpost' => false,
 618                                         'isstarred' => $isstarred,
 619                                         'star' => $star,
 620                                         'drop' => $drop,
 621                                         'vote' => $likebuttons,
 622                                         'like' => '',
 623                                         'dislike' => '',
 624                                         'comment' => '',
 625                                         'conv' => (($preview) ? '' : ['href'=> 'display/'.$item['guid'], 'title'=> DI::l10n()->t('View in context')]),
 626                                         'previewing' => $previewing,
 627                                         'wait' => DI::l10n()->t('Please wait'),
 628                                         'thread_level' => 1,
 629                                 ];
 630
 631                                 $arr = ['item' => $item, 'output' => $tmp_item];
 632                                 Hook::callAll('display_item', $arr);
 633
 634                                 $threads[$threadsid]['id'] = $item['id'];
 635                                 $threads[$threadsid]['network'] = $item['network'];
 636                                 $threads[$threadsid]['items'] = [$arr['output']];
 637
 638                         }
 639                 } else {
 640                         // Normal View
 641                         $page_template = Renderer::getMarkupTemplate("threaded_conversation.tpl");
 642
 643                         $conv = new Thread($mode, $preview, $writable);
 644
 645                         /*
 646                          * get all the topmost parents
 647                          * this shouldn't be needed, as we should have only them in our array
 648                          * But for now, this array respects the old style, just in case
 649                          */
 650                         foreach ($items as $item) {
 651                                 if (in_array($item['author-id'], $blocklist)) {
 652                                         continue;
 653                                 }
 654
 655                                 // Can we put this after the visibility check?
 656                                 builtin_activity_puller($item, $conv_responses);
 657
 658                                 // Only add what is visible
 659                                 if ($item['network'] === Protocol::MAIL && local_user() != $item['uid']) {
 660                                         continue;
 661                                 }
 662
 663                                 if (!visible_activity($item)) {
 664                                         continue;
 665                                 }
 666
 667                                 /// @todo Check if this call is needed or not
 668                                 $arr = ['item' => $item];
 669                                 Hook::callAll('display_item', $arr);
 670
 671                                 $item['pagedrop'] = $page_dropping;
 672
 673                                 if ($item['gravity'] == GRAVITY_PARENT) {
 674                                         $item_object = new Post($item);
 675                                         $conv->addParent($item_object);
 676                                 }
 677                         }
 678
 679                         $threads = $conv->getTemplateData($conv_responses);
 680                         if (!$threads) {
 681                                 Logger::log('[ERROR] conversation : Failed to get template data.', Logger::DEBUG);
 682                                 $threads = [];
 683                         }
 684                 }
 685         }
 686
 687         $o = Renderer::replaceMacros($page_template, [
 688                 '$baseurl' => DI::baseUrl()->get($ssl_state),
 689                 '$return_path' => DI::args()->getQueryString(),
 690                 '$live_update' => $live_update_div,
 691                 '$remove' => DI::l10n()->t('remove'),
 692                 '$mode' => $mode,
 693                 '$user' => $a->user,
 694                 '$threads' => $threads,
 695                 '$dropping' => ($page_dropping ? DI::l10n()->t('Delete Selected Items') : False),
 696         ]);
 697
 698         return $o;
 699 }
 700
 701 /**
 702  * Fetch all comments from a query. Additionally set the newest resharer as thread owner.
 703  *
 704  * @param mixed   $thread_items Database statement with thread posts
 705  * @param boolean $pinned       Is the item pinned?
 706  *
 707  * @return array items with parents and comments
 708  */
 709 function conversation_fetch_comments($thread_items, $pinned) {
 710         $comments = [];
 711         $parentlines = [];
 712         $lineno = 0;
 713         $direction = [];
 714         $received = '';
 715
 716         while ($row = Item::fetch($thread_items)) {
 717                 if (!empty($parentlines) && ($row['verb'] == Activity::ANNOUNCE)
 718                         && ($row['thr-parent'] == $row['parent-uri']) && ($row['received'] > $received)
 719                         && Contact::isSharing($row['author-id'], $row['uid'])) {
 720                         $direction = ['direction' => 3, 'title' => DI::l10n()->t('%s reshared this.', $row['author-name'])];
 721                         $received = $row['received'];
 722                 }
 723
 724                 if (!empty($parentlines) && empty($direction) && ($row['gravity'] == GRAVITY_COMMENT)
 725                         && Contact::isSharing($row['author-id'], $row['uid'])) {
 726                         $direction = ['direction' => 2, 'title' => DI::l10n()->t('%s commented this.', $row['author-name'])];
 727                 }
 728
 729                 if (($row['gravity'] == GRAVITY_PARENT) && !$row['origin'] && ($row['author-id'] == $row['owner-id'])
 730                         && !Contact::isSharing($row['author-id'], $row['uid'])) {
 731                         if ($row['post-type'] == Item::PT_TAG) {
 732                                 $row['direction'] = ['direction' => 4, 'title' => DI::l10n()->t('Tagged')];
 733                         }
 734
 735                         $parentlines[] = $lineno;
 736                 }
 737
 738                 if ($row['gravity'] == GRAVITY_PARENT) {
 739                         $row['pinned'] = $pinned;
 740                 }
 741
 742                 $comments[] = $row;
 743                 $lineno++;
 744         }
 745
 746         DBA::close($thread_items);
 747
 748         if (!empty($direction)) {
 749                 foreach ($parentlines as $line) {
 750                         $comments[$line]['direction'] = $direction;
 751                 }
 752         }
 753         return $comments;
 754 }
 755
 756 /**
 757  * Add comments to top level entries that had been fetched before
 758  *
 759  * The system will fetch the comments for the local user whenever possible.
 760  * This behaviour is currently needed to allow commenting on Friendica posts.
 761  *
 762  * @param array $parents Parent items
 763  *
 764  * @param       $block_authors
 765  * @param       $order
 766  * @param       $uid
 767  * @return array items with parents and comments
 768  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 769  */
 770 function conversation_add_children(array $parents, $block_authors, $order, $uid) {
 771         if (count($parents) > 1) {
 772                 $max_comments = DI::config()->get('system', 'max_comments', 100);
 773         } else {
 774                 $max_comments = DI::config()->get('system', 'max_display_comments', 1000);
 775         }
 776
 777         $params = ['order' => ['gravity', 'uid', 'commented' => true]];
 778
 779         if ($max_comments > 0) {
 780                 $params['limit'] = $max_comments;
 781         }
 782
 783         $items = [];
 784
 785         foreach ($parents AS $parent) {
 786                 $condition = ["`item`.`parent-uri` = ? AND `item`.`uid` IN (0, ?) AND (`vid` != ? OR `vid` IS NULL)",
 787                         $parent['uri'], $uid, Verb::getID(Activity::FOLLOW)];
 788                 $items = conversation_fetch_items($parent, $items, $condition, $block_authors, $params);
 789         }
 790
 791         foreach ($items as $index => $item) {
 792                 if ($item['uid'] == 0) {
 793                         $items[$index]['writable'] = in_array($item['network'], Protocol::FEDERATED);
 794                 }
 795         }
 796
 797         $items = conv_sort($items, $order);
 798
 799         return $items;
 800 }
 801
 802 /**
 803  * Fetch conversation items
 804  *
 805  * @param array $parent
 806  * @param array $items
 807  * @param array $condition
 808  * @param boolean $block_authors
 809  * @param array $params
 810  * @return array
 811  */
 812 function conversation_fetch_items(array $parent, array $items, array $condition, bool $block_authors, array $params) {
 813         if ($block_authors) {
 814                 $condition[0] .= " AND NOT `author`.`hidden`";
 815         }
 816
 817         $thread_items = Item::selectForUser(local_user(), array_merge(Item::DISPLAY_FIELDLIST, ['contact-uid', 'gravity', 'post-type']), $condition, $params);
 818
 819         $comments = conversation_fetch_comments($thread_items, $parent['pinned'] ?? false);
 820
 821         if (count($comments) != 0) {
 822                 $items = array_merge($items, $comments);
 823         }
 824         return $items;
 825 }
 826
 827 function item_photo_menu($item) {
 828         $sub_link = '';
 829         $poke_link = '';
 830         $contact_url = '';
 831         $pm_url = '';
 832         $status_link = '';
 833         $photos_link = '';
 834         $posts_link = '';
 835         $block_link = '';
 836         $ignore_link = '';
 837
 838         if (local_user() && local_user() == $item['uid'] && $item['gravity'] == GRAVITY_PARENT && !$item['self']) {
 839                 $sub_link = 'javascript:dosubthread(' . $item['id'] . '); return false;';
 840         }
 841
 842         $author = ['uid' => 0, 'id' => $item['author-id'],
 843                 'network' => $item['author-network'], 'url' => $item['author-link']];
 844         $profile_link = Contact::magicLinkByContact($author, $item['author-link']);
 845         $sparkle = (strpos($profile_link, 'redir/') === 0);
 846
 847         $cid = 0;
 848         $pcid = Contact::getIdForURL($item['author-link'], 0, false);
 849         $network = '';
 850         $rel = 0;
 851         $condition = ['uid' => local_user(), 'nurl' => Strings::normaliseLink($item['author-link'])];
 852         $contact = DBA::selectFirst('contact', ['id', 'network', 'rel'], $condition);
 853         if (DBA::isResult($contact)) {
 854                 $cid = $contact['id'];
 855                 $network = $contact['network'];
 856                 $rel = $contact['rel'];
 857         }
 858
 859         if ($sparkle) {
 860                 $status_link = $profile_link . '/status';
 861                 $photos_link = str_replace('/profile/', '/photos/', $profile_link);
 862                 $profile_link = $profile_link . '/profile';
 863         }
 864
 865         if (!empty($pcid)) {
 866                 $contact_url = 'contact/' . $pcid;
 867                 $posts_link  = $contact_url . '/posts';
 868                 $block_link  = $contact_url . '/block';
 869                 $ignore_link = $contact_url . '/ignore';
 870         }
 871
 872         if ($cid && !$item['self']) {
 873                 $contact_url = 'contact/' . $cid;
 874                 $poke_link   = $contact_url . '/poke';
 875                 $posts_link  = $contact_url . '/posts';
 876
 877                 if (in_array($network, [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
 878                         $pm_url = 'message/new/' . $cid;
 879                 }
 880         }
 881
 882         if (local_user()) {
 883                 $menu = [
 884                         DI::l10n()->t('Follow Thread') => $sub_link,
 885                         DI::l10n()->t('View Status') => $status_link,
 886                         DI::l10n()->t('View Profile') => $profile_link,
 887                         DI::l10n()->t('View Photos') => $photos_link,
 888                         DI::l10n()->t('Network Posts') => $posts_link,
 889                         DI::l10n()->t('View Contact') => $contact_url,
 890                         DI::l10n()->t('Send PM') => $pm_url,
 891                         DI::l10n()->t('Block') => $block_link,
 892                         DI::l10n()->t('Ignore') => $ignore_link
 893                 ];
 894
 895                 if ($network == Protocol::DFRN) {
 896                         $menu[DI::l10n()->t("Poke")] = $poke_link;
 897                 }
 898
 899                 if ((($cid == 0) || ($rel == Contact::FOLLOWER)) &&
 900                         in_array($item['network'], Protocol::FEDERATED)) {
 901                         $menu[DI::l10n()->t('Connect/Follow')] = 'follow?url=' . urlencode($item['author-link']);
 902                 }
 903         } else {
 904                 $menu = [DI::l10n()->t('View Profile') => $item['author-link']];
 905         }
 906
 907         $args = ['item' => $item, 'menu' => $menu];
 908
 909         Hook::callAll('item_photo_menu', $args);
 910
 911         $menu = $args['menu'];
 912
 913         $o = '';
 914         foreach ($menu as $k => $v) {
 915                 if (strpos($v, 'javascript:') === 0) {
 916                         $v = substr($v, 11);
 917                         $o .= '<li role="menuitem"><a onclick="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 918                 } elseif ($v!='') {
 919                         $o .= '<li role="menuitem"><a href="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 920                 }
 921         }
 922         return $o;
 923 }
 924
 925 /**
 926  * Checks item to see if it is one of the builtin activities (like/dislike, event attendance, consensus items, etc.)
 927  *
 928  * Increments the count of each matching activity and adds a link to the author as needed.
 929  *
 930  * @param array  $item
 931  * @param array &$conv_responses (already created with builtin activity structure)
 932  * @return void
 933  * @throws ImagickException
 934  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 935  */
 936 function builtin_activity_puller($item, &$conv_responses) {
 937         foreach ($conv_responses as $mode => $v) {
 938                 $sparkle = '';
 939
 940                 switch ($mode) {
 941                         case 'like':
 942                                 $verb = Activity::LIKE;
 943                                 break;
 944                         case 'dislike':
 945                                 $verb = Activity::DISLIKE;
 946                                 break;
 947                         case 'attendyes':
 948                                 $verb = Activity::ATTEND;
 949                                 break;
 950                         case 'attendno':
 951                                 $verb = Activity::ATTENDNO;
 952                                 break;
 953                         case 'attendmaybe':
 954                                 $verb = Activity::ATTENDMAYBE;
 955                                 break;
 956                         case 'announce':
 957                                 $verb = Activity::ANNOUNCE;
 958                                 break;
 959                         default:
 960                                 return;
 961                 }
 962
 963                 if (!empty($item['verb']) && DI::activity()->match($item['verb'], $verb) && ($item['gravity'] != GRAVITY_PARENT)) {
 964                         $author = ['uid' => 0, 'id' => $item['author-id'],
 965                                 'network' => $item['author-network'], 'url' => $item['author-link']];
 966                         $url = Contact::magicLinkByContact($author);
 967                         if (strpos($url, 'redir/') === 0) {
 968                                 $sparkle = ' class="sparkle" ';
 969                         }
 970
 971                         $url = '<a href="'. $url . '"'. $sparkle .'>' . htmlentities($item['author-name']) . '</a>';
 972
 973                         if (empty($item['thr-parent'])) {
 974                                 $item['thr-parent'] = $item['parent-uri'];
 975                         }
 976
 977                         if (!(isset($conv_responses[$mode][$item['thr-parent'] . '-l'])
 978                                 && is_array($conv_responses[$mode][$item['thr-parent'] . '-l']))) {
 979                                 $conv_responses[$mode][$item['thr-parent'] . '-l'] = [];
 980                         }
 981
 982                         // only list each unique author once
 983                         if (in_array($url,$conv_responses[$mode][$item['thr-parent'] . '-l'])) {
 984                                 continue;
 985                         }
 986
 987                         if (!isset($conv_responses[$mode][$item['thr-parent']])) {
 988                                 $conv_responses[$mode][$item['thr-parent']] = 1;
 989                         } else {
 990                                 $conv_responses[$mode][$item['thr-parent']] ++;
 991                         }
 992
 993                         if (public_contact() == $item['author-id']) {
 994                                 $conv_responses[$mode][$item['thr-parent'] . '-self'] = 1;
 995                         }
 996
 997                         $conv_responses[$mode][$item['thr-parent'] . '-l'][] = $url;
 998
 999                         // there can only be one activity verb per item so if we found anything, we can stop looking
1000                         return;
1001                 }
1002         }
1003 }
1004
1005 /**
1006  * Format the vote text for a profile item
1007  *
1008  * @param int    $cnt  = number of people who vote the item
1009  * @param array  $arr  = array of pre-linked names of likers/dislikers
1010  * @param string $type = one of 'like, 'dislike', 'attendyes', 'attendno', 'attendmaybe'
1011  * @param int    $id   = item id
1012  * @return string formatted text
1013  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1014  */
1015 function format_like($cnt, array $arr, $type, $id) {
1016         $o = '';
1017         $expanded = '';
1018         $phrase = '';
1019
1020         if ($cnt == 1) {
1021                 $likers = $arr[0];
1022
1023                 // Phrase if there is only one liker. In other cases it will be uses for the expanded
1024                 // list which show all likers
1025                 switch ($type) {
1026                         case 'like' :
1027                                 $phrase = DI::l10n()->t('%s likes this.', $likers);
1028                                 break;
1029                         case 'dislike' :
1030                                 $phrase = DI::l10n()->t('%s doesn\'t like this.', $likers);
1031                                 break;
1032                         case 'attendyes' :
1033                                 $phrase = DI::l10n()->t('%s attends.', $likers);
1034                                 break;
1035                         case 'attendno' :
1036                                 $phrase = DI::l10n()->t('%s doesn\'t attend.', $likers);
1037                                 break;
1038                         case 'attendmaybe' :
1039                                 $phrase = DI::l10n()->t('%s attends maybe.', $likers);
1040                                 break;
1041                         case 'announce' :
1042                                 $phrase = DI::l10n()->t('%s reshared this.', $likers);
1043                                 break;
1044                 }
1045         }
1046
1047         if ($cnt > 1) {
1048                 $total = count($arr);
1049                 if ($total < MAX_LIKERS) {
1050                         $last = DI::l10n()->t('and') . ' ' . $arr[count($arr)-1];
1051                         $arr2 = array_slice($arr, 0, -1);
1052                         $likers = implode(', ', $arr2) . ' ' . $last;
1053                 } else  {
1054                         $arr = array_slice($arr, 0, MAX_LIKERS - 1);
1055                         $likers = implode(', ', $arr);
1056                         $likers .= DI::l10n()->t('and %d other people', $total - MAX_LIKERS);
1057                 }
1058
1059                 $spanatts = "class=\"fakelink\" onclick=\"openClose('{$type}list-$id');\"";
1060
1061                 $explikers = '';
1062                 switch ($type) {
1063                         case 'like':
1064                                 $phrase = DI::l10n()->t('<span  %1$s>%2$d people</span> like this', $spanatts, $cnt);
1065                                 $explikers = DI::l10n()->t('%s like this.', $likers);
1066                                 break;
1067                         case 'dislike':
1068                                 $phrase = DI::l10n()->t('<span  %1$s>%2$d people</span> don\'t like this', $spanatts, $cnt);
1069                                 $explikers = DI::l10n()->t('%s don\'t like this.', $likers);
1070                                 break;
1071                         case 'attendyes':
1072                                 $phrase = DI::l10n()->t('<span  %1$s>%2$d people</span> attend', $spanatts, $cnt);
1073                                 $explikers = DI::l10n()->t('%s attend.', $likers);
1074                                 break;
1075                         case 'attendno':
1076                                 $phrase = DI::l10n()->t('<span  %1$s>%2$d people</span> don\'t attend', $spanatts, $cnt);
1077                                 $explikers = DI::l10n()->t('%s don\'t attend.', $likers);
1078                                 break;
1079                         case 'attendmaybe':
1080                                 $phrase = DI::l10n()->t('<span  %1$s>%2$d people</span> attend maybe', $spanatts, $cnt);
1081                                 $explikers = DI::l10n()->t('%s attend maybe.', $likers);
1082                                 break;
1083                         case 'announce':
1084                                 $phrase = DI::l10n()->t('<span  %1$s>%2$d people</span> reshared this', $spanatts, $cnt);
1085                                 $explikers = DI::l10n()->t('%s reshared this.', $likers);
1086                                 break;
1087                 }
1088
1089                 $expanded .= "\t" . '<p class="wall-item-' . $type . '-expanded" id="' . $type . 'list-' . $id . '" style="display: none;" >' . $explikers . EOL . '</p>';
1090         }
1091
1092         $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('voting_fakelink.tpl'), [
1093                 '$phrase' => $phrase,
1094                 '$type' => $type,
1095                 '$id' => $id
1096         ]);
1097         $o .= $expanded;
1098
1099         return $o;
1100 }
1101
1102 function status_editor(App $a, $x, $notes_cid = 0, $popup = false)
1103 {
1104         $o = '';
1105
1106         $geotag = !empty($x['allow_location']) ? Renderer::replaceMacros(Renderer::getMarkupTemplate('jot_geotag.tpl'), []) : '';
1107
1108         $tpl = Renderer::getMarkupTemplate('jot-header.tpl');
1109         DI::page()['htmlhead'] .= Renderer::replaceMacros($tpl, [
1110                 '$newpost'   => 'true',
1111                 '$baseurl'   => DI::baseUrl()->get(true),
1112                 '$geotag'    => $geotag,
1113                 '$nickname'  => $x['nickname'],
1114                 '$ispublic'  => DI::l10n()->t('Visible to <strong>everybody</strong>'),
1115                 '$linkurl'   => DI::l10n()->t('Please enter a image/video/audio/webpage URL:'),
1116                 '$term'      => DI::l10n()->t('Tag term:'),
1117                 '$fileas'    => DI::l10n()->t('Save to Folder:'),
1118                 '$whereareu' => DI::l10n()->t('Where are you right now?'),
1119                 '$delitems'  => DI::l10n()->t("Delete item\x28s\x29?")
1120         ]);
1121
1122         $jotplugins = '';
1123         Hook::callAll('jot_tool', $jotplugins);
1124
1125         // Private/public post links for the non-JS ACL form
1126         $private_post = 1;
1127         if (!empty($_REQUEST['public'])) {
1128                 $private_post = 0;
1129         }
1130
1131         $query_str = DI::args()->getQueryString();
1132         if (strpos($query_str, 'public=1') !== false) {
1133                 $query_str = str_replace(['?public=1', '&public=1'], ['', ''], $query_str);
1134         }
1135
1136         /*
1137          * I think $a->query_string may never have ? in it, but I could be wrong
1138          * It looks like it's from the index.php?q=[etc] rewrite that the web
1139          * server does, which converts any ? to &, e.g. suggest&ignore=61 for suggest?ignore=61
1140          */
1141         if (strpos($query_str, '?') === false) {
1142                 $public_post_link = '?public=1';
1143         } else {
1144                 $public_post_link = '&public=1';
1145         }
1146
1147         // $tpl = Renderer::replaceMacros($tpl,array('$jotplugins' => $jotplugins));
1148         $tpl = Renderer::getMarkupTemplate("jot.tpl");
1149
1150         $o .= Renderer::replaceMacros($tpl,[
1151                 '$new_post' => DI::l10n()->t('New Post'),
1152                 '$return_path'  => $query_str,
1153                 '$action'       => 'item',
1154                 '$share'        => ($x['button'] ?? '') ?: DI::l10n()->t('Share'),
1155                 '$loading'      => DI::l10n()->t('Loading...'),
1156                 '$upload'       => DI::l10n()->t('Upload photo'),
1157                 '$shortupload'  => DI::l10n()->t('upload photo'),
1158                 '$attach'       => DI::l10n()->t('Attach file'),
1159                 '$shortattach'  => DI::l10n()->t('attach file'),
1160                 '$edbold'       => DI::l10n()->t('Bold'),
1161                 '$editalic'     => DI::l10n()->t('Italic'),
1162                 '$eduline'      => DI::l10n()->t('Underline'),
1163                 '$edquote'      => DI::l10n()->t('Quote'),
1164                 '$edcode'       => DI::l10n()->t('Code'),
1165                 '$edimg'        => DI::l10n()->t('Image'),
1166                 '$edurl'        => DI::l10n()->t('Link'),
1167                 '$edattach'     => DI::l10n()->t('Link or Media'),
1168                 '$setloc'       => DI::l10n()->t('Set your location'),
1169                 '$shortsetloc'  => DI::l10n()->t('set location'),
1170                 '$noloc'        => DI::l10n()->t('Clear browser location'),
1171                 '$shortnoloc'   => DI::l10n()->t('clear location'),
1172                 '$title'        => $x['title'] ?? '',
1173                 '$placeholdertitle' => DI::l10n()->t('Set title'),
1174                 '$category'     => $x['category'] ?? '',
1175                 '$placeholdercategory' => Feature::isEnabled(local_user(), 'categories') ? DI::l10n()->t("Categories \x28comma-separated list\x29") : '',
1176                 '$wait'         => DI::l10n()->t('Please wait'),
1177                 '$permset'      => DI::l10n()->t('Permission settings'),
1178                 '$shortpermset' => DI::l10n()->t('permissions'),
1179                 '$wall'         => $notes_cid ? 0 : 1,
1180                 '$posttype'     => $notes_cid ? Item::PT_PERSONAL_NOTE : Item::PT_ARTICLE,
1181                 '$content'      => $x['content'] ?? '',
1182                 '$post_id'      => $x['post_id'] ?? '',
1183                 '$baseurl'      => DI::baseUrl()->get(true),
1184                 '$defloc'       => $x['default_location'],
1185                 '$visitor'      => $x['visitor'],
1186                 '$pvisit'       => $notes_cid ? 'none' : $x['visitor'],
1187                 '$public'       => DI::l10n()->t('Public post'),
1188                 '$lockstate'    => $x['lockstate'],
1189                 '$bang'         => $x['bang'],
1190                 '$profile_uid'  => $x['profile_uid'],
1191                 '$preview'      => DI::l10n()->t('Preview'),
1192                 '$jotplugins'   => $jotplugins,
1193                 '$notes_cid'    => $notes_cid,
1194                 '$sourceapp'    => DI::l10n()->t($a->sourcename),
1195                 '$cancel'       => DI::l10n()->t('Cancel'),
1196                 '$rand_num'     => Crypto::randomDigits(12),
1197
1198                 // ACL permissions box
1199                 '$acl'           => $x['acl'],
1200                 '$group_perms'   => DI::l10n()->t('Post to Groups'),
1201                 '$contact_perms' => DI::l10n()->t('Post to Contacts'),
1202                 '$private'       => DI::l10n()->t('Private post'),
1203                 '$is_private'    => $private_post,
1204                 '$public_link'   => $public_post_link,
1205
1206                 //jot nav tab (used in some themes)
1207                 '$message' => DI::l10n()->t('Message'),
1208                 '$browser' => DI::l10n()->t('Browser'),
1209
1210                 '$compose_link_title' => DI::l10n()->t('Open Compose page'),
1211         ]);
1212
1213
1214         if ($popup == true) {
1215                 $o = '<div id="jot-popup" style="display: none;">' . $o . '</div>';
1216         }
1217
1218         return $o;
1219 }
1220
1221 /**
1222  * Plucks the children of the given parent from a given item list.
1223  *
1224  * @param array $item_list
1225  * @param array $parent
1226  * @param bool  $recursive
1227  * @return array
1228  */
1229 function get_item_children(array &$item_list, array $parent, $recursive = true)
1230 {
1231         $children = [];
1232         foreach ($item_list as $i => $item) {
1233                 if ($item['gravity'] != GRAVITY_PARENT) {
1234                         if ($recursive) {
1235                                 // Fallback to parent-uri if thr-parent is not set
1236                                 $thr_parent = $item['thr-parent'];
1237                                 if ($thr_parent == '') {
1238                                         $thr_parent = $item['parent-uri'];
1239                                 }
1240
1241                                 if ($thr_parent == $parent['uri']) {
1242                                         $item['children'] = get_item_children($item_list, $item);
1243                                         $children[] = $item;
1244                                         unset($item_list[$i]);
1245                                 }
1246                         } elseif ($item['parent'] == $parent['id']) {
1247                                 $children[] = $item;
1248                                 unset($item_list[$i]);
1249                         }
1250                 }
1251         }
1252         return $children;
1253 }
1254
1255 /**
1256  * Recursively sorts a tree-like item array
1257  *
1258  * @param array $items
1259  * @return array
1260  */
1261 function sort_item_children(array $items)
1262 {
1263         $result = $items;
1264         usort($result, 'sort_thr_received_rev');
1265         foreach ($result as $k => $i) {
1266                 if (isset($result[$k]['children'])) {
1267                         $result[$k]['children'] = sort_item_children($result[$k]['children']);
1268                 }
1269         }
1270         return $result;
1271 }
1272
1273 /**
1274  * Recursively add all children items at the top level of a list
1275  *
1276  * @param array $children List of items to append
1277  * @param array $item_list
1278  */
1279 function add_children_to_list(array $children, array &$item_list)
1280 {
1281         foreach ($children as $child) {
1282                 $item_list[] = $child;
1283                 if (isset($child['children'])) {
1284                         add_children_to_list($child['children'], $item_list);
1285                 }
1286         }
1287 }
1288
1289 /**
1290  * Selectively flattens a tree-like item structure to prevent threading stairs
1291  *
1292  * This recursive function takes the item tree structure created by conv_sort() and
1293  * flatten the extraneous depth levels when people reply sequentially, removing the
1294  * stairs effect in threaded conversations limiting the available content width.
1295  *
1296  * The basic principle is the following: if a post item has only one reply and is
1297  * the last reply of its parent, then the reply is moved to the parent.
1298  *
1299  * This process is rendered somewhat more complicated because items can be either
1300  * replies or likes, and these don't factor at all in the reply count/last reply.
1301  *
1302  * @param array $parent A tree-like array of items
1303  * @return array
1304  */
1305 function smart_flatten_conversation(array $parent)
1306 {
1307         if (!isset($parent['children']) || count($parent['children']) == 0) {
1308                 return $parent;
1309         }
1310
1311         // We use a for loop to ensure we process the newly-moved items
1312         for ($i = 0; $i < count($parent['children']); $i++) {
1313                 $child = $parent['children'][$i];
1314
1315                 if (isset($child['children']) && count($child['children'])) {
1316                         // This helps counting only the regular posts
1317                         $count_post_closure = function($var) {
1318                                 return $var['verb'] === Activity::POST;
1319                         };
1320
1321                         $child_post_count = count(array_filter($child['children'], $count_post_closure));
1322
1323                         $remaining_post_count = count(array_filter(array_slice($parent['children'], $i), $count_post_closure));
1324
1325                         // If there's only one child's children post and this is the last child post
1326                         if ($child_post_count == 1 && $remaining_post_count == 1) {
1327
1328                                 // Searches the post item in the children
1329                                 $j = 0;
1330                                 while($child['children'][$j]['verb'] !== Activity::POST && $j < count($child['children'])) {
1331                                         $j ++;
1332                                 }
1333
1334                                 $moved_item = $child['children'][$j];
1335                                 unset($parent['children'][$i]['children'][$j]);
1336                                 $parent['children'][] = $moved_item;
1337                         } else {
1338                                 $parent['children'][$i] = smart_flatten_conversation($child);
1339                         }
1340                 }
1341         }
1342
1343         return $parent;
1344 }
1345
1346
1347 /**
1348  * Expands a flat list of items into corresponding tree-like conversation structures.
1349  *
1350  * sort the top-level posts either on "received" or "commented", and finally
1351  * append all the items at the top level (???)
1352  *
1353  * @param array  $item_list A list of items belonging to one or more conversations
1354  * @param string $order     Either on "received" or "commented"
1355  * @return array
1356  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1357  */
1358 function conv_sort(array $item_list, $order)
1359 {
1360         $parents = [];
1361
1362         if (!(is_array($item_list) && count($item_list))) {
1363                 return $parents;
1364         }
1365
1366         $blocklist = conv_get_blocklist();
1367
1368         $item_array = [];
1369
1370         // Dedupes the item list on the uri to prevent infinite loops
1371         foreach ($item_list as $item) {
1372                 if (in_array($item['author-id'], $blocklist)) {
1373                         continue;
1374                 }
1375
1376                 $item_array[$item['uri']] = $item;
1377         }
1378
1379         // Extract the top level items
1380         foreach ($item_array as $item) {
1381                 if ($item['gravity'] == GRAVITY_PARENT) {
1382                         $parents[] = $item;
1383                 }
1384         }
1385
1386         if (stristr($order, 'pinned_received')) {
1387                 usort($parents, 'sort_thr_pinned_received');
1388         } elseif (stristr($order, 'received')) {
1389                 usort($parents, 'sort_thr_received');
1390         } elseif (stristr($order, 'commented')) {
1391                 usort($parents, 'sort_thr_commented');
1392         }
1393
1394         /*
1395          * Plucks children from the item_array, second pass collects eventual orphan
1396          * items and add them as children of their top-level post.
1397          */
1398         foreach ($parents as $i => $parent) {
1399                 $parents[$i]['children'] =
1400                         array_merge(get_item_children($item_array, $parent, true),
1401                                 get_item_children($item_array, $parent, false));
1402         }
1403
1404         foreach ($parents as $i => $parent) {
1405                 $parents[$i]['children'] = sort_item_children($parents[$i]['children']);
1406         }
1407
1408         if (!DI::pConfig()->get(local_user(), 'system', 'no_smart_threading', 0)) {
1409                 foreach ($parents as $i => $parent) {
1410                         $parents[$i] = smart_flatten_conversation($parent);
1411                 }
1412         }
1413
1414         /// @TODO: Stop recusrsively adding all children back to the top level (!!!)
1415         /// However, this apparently ensures responses (likes, attendance) display (?!)
1416         foreach ($parents as $parent) {
1417                 if (count($parent['children'])) {
1418                         add_children_to_list($parent['children'], $parents);
1419                 }
1420         }
1421
1422         return $parents;
1423 }
1424
1425 /**
1426  * usort() callback to sort item arrays by pinned and the received key
1427  *
1428  * @param array $a
1429  * @param array $b
1430  * @return int
1431  */
1432 function sort_thr_pinned_received(array $a, array $b)
1433 {
1434         if ($b['pinned'] && !$a['pinned']) {
1435                 return 1;
1436         } elseif (!$b['pinned'] && $a['pinned']) {
1437                 return -1;
1438         }
1439
1440         return strcmp($b['received'], $a['received']);
1441 }
1442
1443 /**
1444  * usort() callback to sort item arrays by the received key
1445  *
1446  * @param array $a
1447  * @param array $b
1448  * @return int
1449  */
1450 function sort_thr_received(array $a, array $b)
1451 {
1452         return strcmp($b['received'], $a['received']);
1453 }
1454
1455 /**
1456  * usort() callback to reverse sort item arrays by the received key
1457  *
1458  * @param array $a
1459  * @param array $b
1460  * @return int
1461  */
1462 function sort_thr_received_rev(array $a, array $b)
1463 {
1464         return strcmp($a['received'], $b['received']);
1465 }
1466
1467 /**
1468  * usort() callback to sort item arrays by the commented key
1469  *
1470  * @param array $a
1471  * @param array $b
1472  * @return int
1473  */
1474 function sort_thr_commented(array $a, array $b)
1475 {
1476         return strcmp($b['commented'], $a['commented']);
1477 }
1478
1479 function render_location_dummy(array $item) {
1480         if (!empty($item['location']) && !empty($item['location'])) {
1481                 return $item['location'];
1482         }
1483
1484         if (!empty($item['coord']) && !empty($item['coord'])) {
1485                 return $item['coord'];
1486         }
1487 }