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