src/Content/Item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Content;
  23
  24 use Friendica\Content\Text\BBCode;
  25 use Friendica\Core\Hook;
  26 use Friendica\Core\L10n;
  27 use Friendica\Core\Logger;
  28 use Friendica\Core\Protocol;
  29 use Friendica\Core\Session;
  30 use Friendica\Database\DBA;
  31 use Friendica\Model\Contact;
  32 use Friendica\Model\Group;
  33 use Friendica\Model\Item as ModelItem;
  34 use Friendica\Model\Tag;
  35 use Friendica\Model\Post;
  36 use Friendica\Protocol\Activity;
  37 use Friendica\Util\Profiler;
  38 use Friendica\Util\Strings;
  39 use Friendica\Util\XML;
  40
  41 /**
  42  * A content helper class for displaying items
  43  */
  44 class Item
  45 {
  46         /** @var Activity */
  47         private $activity;
  48         /** @var L10n */
  49         private $l10n;
  50         /** @var Profiler */
  51         private $profiler;
  52
  53         public function __construct(Profiler $profiler, Activity $activity, L10n $l10n)
  54         {
  55                 $this->profiler = $profiler;
  56                 $this->activity = $activity;
  57                 $this->l10n   = $l10n;
  58         }
  59
  60         /**
  61          * Return array with details for categories and folders for an item
  62          *
  63          * @param array $item
  64          * @param int   $uid
  65          * @return [array, array]
  66          *
  67          * [
  68          *      [ // categories array
  69          *          {
  70          *               'name': 'category name',
  71          *               'removeurl': 'url to remove this category',
  72          *               'first': 'is the first in this array? true/false',
  73          *               'last': 'is the last in this array? true/false',
  74          *           } ,
  75          *           ....
  76          *       ],
  77          *       [ //folders array
  78          *                      {
  79          *               'name': 'folder name',
  80          *               'removeurl': 'url to remove this folder',
  81          *               'first': 'is the first in this array? true/false',
  82          *               'last': 'is the last in this array? true/false',
  83          *           } ,
  84          *           ....
  85          *       ]
  86          *  ]
  87          */
  88         public function determineCategoriesTerms(array $item, int $uid = 0)
  89         {
  90                 $categories = [];
  91                 $folders = [];
  92                 $first = true;
  93
  94                 $uid = $item['uid'] ?: $uid;
  95
  96                 foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::CATEGORY) as $savedFolderName) {
  97                         if (!empty($item['author-link'])) {
  98                                 $url = $item['author-link'] . "?category=" . rawurlencode($savedFolderName);
  99                         } else {
 100                                 $url = '#';
 101                         }
 102                         $categories[] = [
 103                                 'name' => $savedFolderName,
 104                                 'url' => $url,
 105                                 'removeurl' => local_user() == $uid ? 'filerm/' . $item['id'] . '?cat=' . rawurlencode($savedFolderName) : '',
 106                                 'first' => $first,
 107                                 'last' => false
 108                         ];
 109                         $first = false;
 110                 }
 111
 112                 if (count($categories)) {
 113                         $categories[count($categories) - 1]['last'] = true;
 114                 }
 115
 116                 if (local_user() == $uid) {
 117                         foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::FILE) as $savedFolderName) {
 118                                 $folders[] = [
 119                                         'name' => $savedFolderName,
 120                                         'url' => "#",
 121                                         'removeurl' => local_user() == $uid ? 'filerm/' . $item['id'] . '?term=' . rawurlencode($savedFolderName) : '',
 122                                         'first' => $first,
 123                                         'last' => false
 124                                 ];
 125                                 $first = false;
 126                         }
 127                 }
 128
 129                 if (count($folders)) {
 130                         $folders[count($folders) - 1]['last'] = true;
 131                 }
 132
 133                 return [$categories, $folders];
 134         }
 135
 136         /**
 137          * This function removes the tag $tag from the text $body and replaces it with
 138          * the appropriate link.
 139          *
 140          * @param string  $body        the text to replace the tag in
 141          * @param integer $profile_uid the user id to replace the tag for (0 = anyone)
 142          * @param string  $tag         the tag to replace
 143          * @param string  $network     The network of the post
 144          *
 145          * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 146          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 147          * @throws \ImagickException
 148          */
 149         public static function replaceTag(&$body, $profile_uid, $tag, $network = '')
 150         {
 151                 $replaced = false;
 152
 153                 //is it a person tag?
 154                 if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 155                         $tag_type = substr($tag, 0, 1);
 156                         //is it already replaced?
 157                         if (strpos($tag, '[url=')) {
 158                                 return $replaced;
 159                         }
 160
 161                         //get the person's name
 162                         $name = substr($tag, 1);
 163
 164                         // Sometimes the tag detection doesn't seem to work right
 165                         // This is some workaround
 166                         $nameparts = explode(' ', $name);
 167                         $name = $nameparts[0];
 168
 169                         // Try to detect the contact in various ways
 170                         if (strpos($name, 'http://') || strpos($name, '@')) {
 171                                 $contact = Contact::getByURLForUser($name, $profile_uid);
 172                         } else {
 173                                 $contact = false;
 174                                 $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 175
 176                                 if (strrpos($name, '+')) {
 177                                         // Is it in format @nick+number?
 178                                         $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 179                                         $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 180                                 }
 181
 182                                 // select someone by nick in the current network
 183                                 if (!DBA::isResult($contact) && ($network != '')) {
 184                                         $condition = ["`nick` = ? AND `network` = ? AND `uid` = ?",
 185                                                 $name, $network, $profile_uid];
 186                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 187                                 }
 188
 189                                 // select someone by attag in the current network
 190                                 if (!DBA::isResult($contact) && ($network != '')) {
 191                                         $condition = ["`attag` = ? AND `network` = ? AND `uid` = ?",
 192                                                 $name, $network, $profile_uid];
 193                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 194                                 }
 195
 196                                 //select someone by name in the current network
 197                                 if (!DBA::isResult($contact) && ($network != '')) {
 198                                         $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 199                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 200                                 }
 201
 202                                 // select someone by nick in any network
 203                                 if (!DBA::isResult($contact)) {
 204                                         $condition = ["`nick` = ? AND `uid` = ?", $name, $profile_uid];
 205                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 206                                 }
 207
 208                                 // select someone by attag in any network
 209                                 if (!DBA::isResult($contact)) {
 210                                         $condition = ["`attag` = ? AND `uid` = ?", $name, $profile_uid];
 211                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 212                                 }
 213
 214                                 // select someone by name in any network
 215                                 if (!DBA::isResult($contact)) {
 216                                         $condition = ['name' => $name, 'uid' => $profile_uid];
 217                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 218                                 }
 219                         }
 220
 221                         // Check if $contact has been successfully loaded
 222                         if (DBA::isResult($contact)) {
 223                                 $profile = $contact['url'];
 224                                 $newname = ($contact['name'] ?? '') ?: $contact['nick'];
 225                         }
 226
 227                         //if there is an url for this persons profile
 228                         if (isset($profile) && ($newname != '')) {
 229                                 $replaced = true;
 230                                 // create profile link
 231                                 $profile = str_replace(',', '%2c', $profile);
 232                                 $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
 233                                 $body = str_replace($tag_type . $name, $newtag, $body);
 234                         }
 235                 }
 236
 237                 return ['replaced' => $replaced, 'contact' => $contact];
 238         }
 239
 240         /**
 241          * Render actions localized
 242          *
 243          * @param $item
 244          * @throws ImagickException
 245          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 246          */
 247         public function localize(&$item)
 248         {
 249                 $this->profiler->startRecording('rendering');
 250                 /// @todo The following functionality needs to be cleaned up.
 251                 if (!empty($item['verb'])) {
 252                         $xmlhead = "<" . "?xml version='1.0' encoding='UTF-8' ?" . ">";
 253
 254                         if (stristr($item['verb'], Activity::POKE)) {
 255                                 $verb = urldecode(substr($item['verb'], strpos($item['verb'],'#') + 1));
 256                                 if (!$verb) {
 257                                         $this->profiler->stopRecording();
 258                                         return;
 259                                 }
 260                                 if ($item['object-type'] == "" || $item['object-type'] !== Activity\ObjectType::PERSON) {
 261                                         $this->profiler->stopRecording();
 262                                         return;
 263                                 }
 264
 265                                 $obj = XML::parseString($xmlhead . $item['object']);
 266
 267                                 $Bname = $obj->title;
 268                                 $Blink = $obj->id;
 269                                 $Bphoto = "";
 270
 271                                 foreach ($obj->link as $l) {
 272                                         $atts = $l->attributes();
 273                                         switch ($atts['rel']) {
 274                                                 case "alternate": $Blink = $atts['href'];
 275                                                 case "photo": $Bphoto = $atts['href'];
 276                                         }
 277                                 }
 278
 279                                 $author = ['uid' => 0, 'id' => $item['author-id'],
 280                                         'network' => $item['author-network'], 'url' => $item['author-link']];
 281                                 $A = '[url=' . Contact::magicLinkByContact($author) . ']' . $item['author-name'] . '[/url]';
 282
 283                                 if (!empty($Blink)) {
 284                                         $B = '[url=' . Contact::magicLink($Blink) . ']' . $Bname . '[/url]';
 285                                 } else {
 286                                         $B = '';
 287                                 }
 288
 289                                 if ($Bphoto != "" && !empty($Blink)) {
 290                                         $Bphoto = '[url=' . Contact::magicLink($Blink) . '][img=80x80]' . $Bphoto . '[/img][/url]';
 291                                 }
 292
 293                                 /*
 294                                 * we can't have a translation string with three positions but no distinguishable text
 295                                 * So here is the translate string.
 296                                 */
 297                                 $txt = $this->l10n->t('%1$s poked %2$s');
 298
 299                                 // now translate the verb
 300                                 $poked_t = trim(sprintf($txt, '', ''));
 301                                 $txt = str_replace($poked_t, $this->l10n->t($verb), $txt);
 302
 303                                 // then do the sprintf on the translation string
 304
 305                                 $item['body'] = sprintf($txt, $A, $B) . "\n\n\n" . $Bphoto;
 306
 307                         }
 308
 309                         if ($this->activity->match($item['verb'], Activity::TAG)) {
 310                                 $fields = ['author-id', 'author-link', 'author-name', 'author-network',
 311                                         'verb', 'object-type', 'resource-id', 'body', 'plink'];
 312                                 $obj = Post::selectFirst($fields, ['uri' => $item['parent-uri']]);
 313                                 if (!DBA::isResult($obj)) {
 314                                         $this->profiler->stopRecording();
 315                                         return;
 316                                 }
 317
 318                                 $author_arr = ['uid' => 0, 'id' => $item['author-id'],
 319                                         'network' => $item['author-network'], 'url' => $item['author-link']];
 320                                 $author  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $item['author-name'] . '[/url]';
 321
 322                                 $author_arr = ['uid' => 0, 'id' => $obj['author-id'],
 323                                         'network' => $obj['author-network'], 'url' => $obj['author-link']];
 324                                 $objauthor  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $obj['author-name'] . '[/url]';
 325
 326                                 switch ($obj['verb']) {
 327                                         case Activity::POST:
 328                                                 switch ($obj['object-type']) {
 329                                                         case Activity\ObjectType::EVENT:
 330                                                                 $post_type = $this->l10n->t('event');
 331                                                                 break;
 332                                                         default:
 333                                                                 $post_type = $this->l10n->t('status');
 334                                                 }
 335                                                 break;
 336                                         default:
 337                                                 if ($obj['resource-id']) {
 338                                                         $post_type = $this->l10n->t('photo');
 339                                                         $m=[]; preg_match("/\[url=([^]]*)\]/", $obj['body'], $m);
 340                                                         $rr['plink'] = $m[1];
 341                                                 } else {
 342                                                         $post_type = $this->l10n->t('status');
 343                                                 }
 344                                                 // Let's break everthing ... ;-)
 345                                                 break;
 346                                 }
 347                                 $plink = '[url=' . $obj['plink'] . ']' . $post_type . '[/url]';
 348
 349                                 $parsedobj = XML::parseString($xmlhead . $item['object']);
 350
 351                                 $tag = sprintf('#[url=%s]%s[/url]', $parsedobj->id, $parsedobj->content);
 352                                 $item['body'] = $this->l10n->t('%1$s tagged %2$s\'s %3$s with %4$s', $author, $objauthor, $plink, $tag);
 353                         }
 354                 }
 355
 356                 $matches = null;
 357                 if (preg_match_all('/@\[url=(.*?)\]/is', $item['body'], $matches, PREG_SET_ORDER)) {
 358                         foreach ($matches as $mtch) {
 359                                 if (!strpos($mtch[1], 'zrl=')) {
 360                                         $item['body'] = str_replace($mtch[0], '@[url=' . Contact::magicLink($mtch[1]) . ']', $item['body']);
 361                                 }
 362                         }
 363                 }
 364
 365                 // add sparkle links to appropriate permalinks
 366                 // Only create a redirection to a magic link when logged in
 367                 if (!empty($item['plink']) && Session::isAuthenticated() && $item['private'] == ModelItem::PRIVATE) {
 368                         $author = ['uid' => 0, 'id' => $item['author-id'],
 369                                 'network' => $item['author-network'], 'url' => $item['author-link']];
 370                         $item['plink'] = Contact::magicLinkByContact($author, $item['plink']);
 371                 }
 372                 $this->profiler->stopRecording();
 373         }
 374
 375         public function photoMenu($item, string $formSecurityToken)
 376         {
 377                 $this->profiler->startRecording('rendering');
 378                 $sub_link = '';
 379                 $poke_link = '';
 380                 $contact_url = '';
 381                 $pm_url = '';
 382                 $status_link = '';
 383                 $photos_link = '';
 384                 $posts_link = '';
 385                 $block_link = '';
 386                 $ignore_link = '';
 387
 388                 if (local_user() && local_user() == $item['uid'] && $item['gravity'] == GRAVITY_PARENT && !$item['self'] && !$item['mention']) {
 389                         $sub_link = 'javascript:doFollowThread(' . $item['id'] . '); return false;';
 390                 }
 391
 392                 $author = ['uid' => 0, 'id' => $item['author-id'],
 393                         'network' => $item['author-network'], 'url' => $item['author-link']];
 394                 $profile_link = Contact::magicLinkByContact($author, $item['author-link']);
 395                 $sparkle = (strpos($profile_link, 'redir/') === 0);
 396
 397                 $cid = 0;
 398                 $pcid = $item['author-id'];
 399                 $network = '';
 400                 $rel = 0;
 401                 $condition = ['uid' => local_user(), 'nurl' => Strings::normaliseLink($item['author-link'])];
 402                 $contact = DBA::selectFirst('contact', ['id', 'network', 'rel'], $condition);
 403                 if (DBA::isResult($contact)) {
 404                         $cid = $contact['id'];
 405                         $network = $contact['network'];
 406                         $rel = $contact['rel'];
 407                 }
 408
 409                 if ($sparkle) {
 410                         $status_link = $profile_link . '/status';
 411                         $photos_link = str_replace('/profile/', '/photos/', $profile_link);
 412                         $profile_link = $profile_link . '/profile';
 413                 }
 414
 415                 if (!empty($pcid)) {
 416                         $contact_url = 'contact/' . $pcid;
 417                         $posts_link  = $contact_url . '/posts';
 418                         $block_link  = $item['self'] ? '' : $contact_url . '/block?t=' . $formSecurityToken;
 419                         $ignore_link = $item['self'] ? '' : $contact_url . '/ignore?t=' . $formSecurityToken;
 420                 }
 421
 422                 if ($cid && !$item['self']) {
 423                         $contact_url = 'contact/' . $cid;
 424                         $poke_link   = $contact_url . '/poke';
 425                         $posts_link  = $contact_url . '/posts';
 426
 427                         if (in_array($network, [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
 428                                 $pm_url = 'message/new/' . $cid;
 429                         }
 430                 }
 431
 432                 if (local_user()) {
 433                         $menu = [
 434                                 $this->l10n->t('Follow Thread') => $sub_link,
 435                                 $this->l10n->t('View Status') => $status_link,
 436                                 $this->l10n->t('View Profile') => $profile_link,
 437                                 $this->l10n->t('View Photos') => $photos_link,
 438                                 $this->l10n->t('Network Posts') => $posts_link,
 439                                 $this->l10n->t('View Contact') => $contact_url,
 440                                 $this->l10n->t('Send PM') => $pm_url,
 441                                 $this->l10n->t('Block') => $block_link,
 442                                 $this->l10n->t('Ignore') => $ignore_link
 443                         ];
 444
 445                         if (!empty($item['language'])) {
 446                                 $menu[$this->l10n->t('Languages')] = 'javascript:alert(\'' . ModelItem::getLanguageMessage($item) . '\');';
 447                         }
 448
 449                         if ($network == Protocol::DFRN) {
 450                                 $menu[$this->l10n->t("Poke")] = $poke_link;
 451                         }
 452
 453                         if ((($cid == 0) || ($rel == Contact::FOLLOWER)) &&
 454                                 in_array($item['network'], Protocol::FEDERATED)) {
 455                                 $menu[$this->l10n->t('Connect/Follow')] = 'follow?url=' . urlencode($item['author-link']) . '&auto=1';
 456                         }
 457                 } else {
 458                         $menu = [$this->l10n->t('View Profile') => $item['author-link']];
 459                 }
 460
 461                 $args = ['item' => $item, 'menu' => $menu];
 462
 463                 Hook::callAll('item_photo_menu', $args);
 464
 465                 $menu = $args['menu'];
 466
 467                 $o = '';
 468                 foreach ($menu as $k => $v) {
 469                         if (strpos($v, 'javascript:') === 0) {
 470                                 $v = substr($v, 11);
 471                                 $o .= '<li role="menuitem"><a onclick="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 472                         } elseif ($v) {
 473                                 $o .= '<li role="menuitem"><a href="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 474                         }
 475                 }
 476                 $this->profiler->stopRecording();
 477                 return $o;
 478         }
 479
 480         public function visibleActivity($item) {
 481
 482                 if (empty($item['verb']) || $this->activity->isHidden($item['verb'])) {
 483                         return false;
 484                 }
 485
 486                 // @TODO below if() block can be rewritten to a single line: $isVisible = allConditionsHere;
 487                 if ($this->activity->match($item['verb'], Activity::FOLLOW) &&
 488                         $item['object-type'] === Activity\ObjectType::NOTE &&
 489                         empty($item['self']) &&
 490                         $item['uid'] == local_user()) {
 491                         return false;
 492                 }
 493
 494                 return true;
 495         }
 496
 497         public function expandTags(array $item, bool $setPermissions = false)
 498         {
 499                 // Look for any tags and linkify them
 500                 $item['inform'] = '';
 501                 $private_forum  = false;
 502                 $private_id     = null;
 503                 $only_to_forum  = false;
 504                 $forum_contact  = [];
 505                 $receivers      = [];
 506
 507                 // Convert mentions in the body to a unified format
 508                 $item['body'] = BBCode::setMentions($item['body'], $item['uid'], $item['network']);
 509
 510                 // Search for forum mentions
 511                 foreach (Tag::getFromBody($item['body'], Tag::TAG_CHARACTER[Tag::MENTION] . Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]) as $tag) {
 512                         $contact = Contact::getByURLForUser($tag[2], $item['uid']);
 513
 514                         $receivers[] = $contact['id'];
 515
 516                         if (!empty($item['inform'])) {
 517                                 $item['inform'] .= ',';
 518                         }
 519                         $item['inform'] .= 'cid:' . $contact['id'];
 520
 521                         if (($item['gravity'] == GRAVITY_COMMENT) || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
 522                                 continue;
 523                         }
 524
 525                         if (!empty($contact['prv']) || ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 526                                 $private_forum = $contact['prv'];
 527                                 $only_to_forum = ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 528                                 $private_id = $contact['id'];
 529                                 $forum_contact = $contact;
 530                                 Logger::info('Private forum or exclusive mention', ['url' => $tag[2], 'mention' => $tag[1]]);
 531                         } elseif ($item['allow_cid'] == '<' . $contact['id'] . '>') {
 532                                 $private_forum = false;
 533                                 $only_to_forum = true;
 534                                 $private_id = $contact['id'];
 535                                 $forum_contact = $contact;
 536                                 Logger::info('Public forum', ['url' => $tag[2], 'mention' => $tag[1]]);
 537                         } else {
 538                                 Logger::info('Post with forum mention will not be converted to a forum post', ['url' => $tag[2], 'mention' => $tag[1]]);
 539                         }
 540                 }
 541                 Logger::info('Got inform', ['inform' => $item['inform']]);
 542
 543                 if (($item['gravity'] == GRAVITY_PARENT) && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 544                         // we tagged a forum in a top level post. Now we change the post
 545                         $item['private'] = $private_forum ? ModelItem::PRIVATE : ModelItem::UNLISTED;
 546
 547                         if ($only_to_forum) {
 548                                 $item['postopts'] = '';
 549                         }
 550
 551                         $item['deny_cid'] = '';
 552                         $item['deny_gid'] = '';
 553
 554                         if ($private_forum) {
 555                                 $item['allow_cid'] = '<' . $private_id . '>';
 556                                 $item['allow_gid'] = '<' . Group::getIdForForum($forum_contact['id']) . '>';
 557                         } else {
 558                                 $item['allow_cid'] = '';
 559                                 $item['allow_gid'] = '';
 560                         }
 561                 } elseif ($setPermissions && ($item['gravity'] == GRAVITY_PARENT)) {
 562                         if (empty($receivers)) {
 563                                 // For security reasons direct posts without any receiver will be posts to yourself
 564                                 $self = Contact::selectFirst(['id'], ['uid' => $item['uid'], 'self' => true]);
 565                                 $receivers[] = $self['id'];
 566                         }
 567
 568                         $item['private']   = ModelItem::PRIVATE;
 569                         $item['allow_cid'] = '';
 570                         $item['allow_gid'] = '';
 571                         $item['deny_cid']  = '';
 572                         $item['deny_gid']  = '';
 573
 574                         foreach ($receivers as $receiver) {
 575                                 $item['allow_cid'] .= '<' . $receiver . '>';
 576                         }
 577                 }
 578                 return $item;
 579         }
 580 }