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\Content\Text\HTML;
  26 use Friendica\Core\Hook;
  27 use Friendica\Core\L10n;
  28 use Friendica\Core\Logger;
  29 use Friendica\Core\Protocol;
  30 use Friendica\Core\Session;
  31 use Friendica\Core\System;
  32 use Friendica\Database\DBA;
  33 use Friendica\Model\Contact;
  34 use Friendica\Model\Group;
  35 use Friendica\Model\Item as ItemModel;
  36 use Friendica\Model\Photo;
  37 use Friendica\Model\Tag;
  38 use Friendica\Model\Post;
  39 use Friendica\Protocol\Activity;
  40 use Friendica\Protocol\Diaspora;
  41 use Friendica\Util\Profiler;
  42 use Friendica\Util\Proxy;
  43 use Friendica\Util\XML;
  44
  45 /**
  46  * A content helper class for displaying items
  47  */
  48 class Item
  49 {
  50         /** @var Activity */
  51         private $activity;
  52         /** @var L10n */
  53         private $l10n;
  54         /** @var Profiler */
  55         private $profiler;
  56
  57         public function __construct(Profiler $profiler, Activity $activity, L10n $l10n)
  58         {
  59                 $this->profiler = $profiler;
  60                 $this->activity = $activity;
  61                 $this->l10n   = $l10n;
  62         }
  63
  64         /**
  65          * Return array with details for categories and folders for an item
  66          *
  67          * @param array $item
  68          * @param int   $uid
  69          * @return [array, array]
  70          *
  71          * [
  72          *      [ // categories array
  73          *          {
  74          *               'name': 'category name',
  75          *               'removeurl': 'url to remove this category',
  76          *               'first': 'is the first in this array? true/false',
  77          *               'last': 'is the last in this array? true/false',
  78          *           } ,
  79          *           ....
  80          *       ],
  81          *       [ //folders array
  82          *                      {
  83          *               'name': 'folder name',
  84          *               'removeurl': 'url to remove this folder',
  85          *               'first': 'is the first in this array? true/false',
  86          *               'last': 'is the last in this array? true/false',
  87          *           } ,
  88          *           ....
  89          *       ]
  90          *  ]
  91          */
  92         public function determineCategoriesTerms(array $item, int $uid = 0): array
  93         {
  94                 $categories = [];
  95                 $folders = [];
  96                 $first = true;
  97
  98                 $uid = $item['uid'] ?: $uid;
  99
 100                 if (empty($item['has-categories'])) {
 101                         return [$categories, $folders];
 102                 }
 103
 104                 foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::CATEGORY) as $savedFolderName) {
 105                         if (!empty($item['author-link'])) {
 106                                 $url = $item['author-link'] . "?category=" . rawurlencode($savedFolderName);
 107                         } else {
 108                                 $url = '#';
 109                         }
 110                         $categories[] = [
 111                                 'name' => $savedFolderName,
 112                                 'url' => $url,
 113                                 'removeurl' => Session::getLocalUser() == $uid ? 'filerm/' . $item['id'] . '?cat=' . rawurlencode($savedFolderName) : '',
 114                                 'first' => $first,
 115                                 'last' => false
 116                         ];
 117                         $first = false;
 118                 }
 119
 120                 if (count($categories)) {
 121                         $categories[count($categories) - 1]['last'] = true;
 122                 }
 123
 124                 if (Session::getLocalUser() == $uid) {
 125                         foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::FILE) as $savedFolderName) {
 126                                 $folders[] = [
 127                                         'name' => $savedFolderName,
 128                                         'url' => "#",
 129                                         'removeurl' => Session::getLocalUser() == $uid ? 'filerm/' . $item['id'] . '?term=' . rawurlencode($savedFolderName) : '',
 130                                         'first' => $first,
 131                                         'last' => false
 132                                 ];
 133                                 $first = false;
 134                         }
 135                 }
 136
 137                 if (count($folders)) {
 138                         $folders[count($folders) - 1]['last'] = true;
 139                 }
 140
 141                 return [$categories, $folders];
 142         }
 143
 144         /**
 145          * This function removes the tag $tag from the text $body and replaces it with
 146          * the appropriate link.
 147          *
 148          * @param string $body        the text to replace the tag in
 149          * @param int    $profile_uid the user id to replace the tag for (0 = anyone)
 150          * @param string $tag         the tag to replace
 151          * @param string $network     The network of the post
 152          *
 153          * @return array|bool ['replaced' => $replaced, 'contact' => $contact] or "false" on if already replaced
 154          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 155          * @throws \ImagickException
 156          */
 157         public static function replaceTag(string &$body, int $profile_uid, string $tag, string $network = '')
 158         {
 159                 $replaced = false;
 160
 161                 //is it a person tag?
 162                 if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 163                         $tag_type = substr($tag, 0, 1);
 164                         //is it already replaced?
 165                         if (strpos($tag, '[url=')) {
 166                                 return $replaced;
 167                         }
 168
 169                         //get the person's name
 170                         $name = substr($tag, 1);
 171
 172                         // Sometimes the tag detection doesn't seem to work right
 173                         // This is some workaround
 174                         $nameparts = explode(' ', $name);
 175                         $name = $nameparts[0];
 176
 177                         // Try to detect the contact in various ways
 178                         if (strpos($name, 'http://') || strpos($name, '@')) {
 179                                 $contact = Contact::getByURLForUser($name, $profile_uid);
 180                         } else {
 181                                 $contact = false;
 182                                 $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 183
 184                                 if (strrpos($name, '+')) {
 185                                         // Is it in format @nick+number?
 186                                         $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 187                                         $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 188                                 }
 189
 190                                 // select someone by nick in the current network
 191                                 if (!DBA::isResult($contact) && ($network != '')) {
 192                                         $condition = ["`nick` = ? AND `network` = ? AND `uid` = ?",
 193                                                 $name, $network, $profile_uid];
 194                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 195                                 }
 196
 197                                 // select someone by attag in the current network
 198                                 if (!DBA::isResult($contact) && ($network != '')) {
 199                                         $condition = ["`attag` = ? AND `network` = ? AND `uid` = ?",
 200                                                 $name, $network, $profile_uid];
 201                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 202                                 }
 203
 204                                 //select someone by name in the current network
 205                                 if (!DBA::isResult($contact) && ($network != '')) {
 206                                         $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 207                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 208                                 }
 209
 210                                 // select someone by nick in any network
 211                                 if (!DBA::isResult($contact)) {
 212                                         $condition = ["`nick` = ? AND `uid` = ?", $name, $profile_uid];
 213                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 214                                 }
 215
 216                                 // select someone by attag in any network
 217                                 if (!DBA::isResult($contact)) {
 218                                         $condition = ["`attag` = ? AND `uid` = ?", $name, $profile_uid];
 219                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 220                                 }
 221
 222                                 // select someone by name in any network
 223                                 if (!DBA::isResult($contact)) {
 224                                         $condition = ['name' => $name, 'uid' => $profile_uid];
 225                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 226                                 }
 227                         }
 228
 229                         // Check if $contact has been successfully loaded
 230                         if (DBA::isResult($contact)) {
 231                                 $profile = $contact['url'];
 232                                 $newname = ($contact['name'] ?? '') ?: $contact['nick'];
 233                         }
 234
 235                         //if there is an url for this persons profile
 236                         if (isset($profile) && ($newname != '')) {
 237                                 $replaced = true;
 238                                 // create profile link
 239                                 $profile = str_replace(',', '%2c', $profile);
 240                                 $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
 241                                 $body = str_replace($tag_type . $name, $newtag, $body);
 242                         }
 243                 }
 244
 245                 return ['replaced' => $replaced, 'contact' => $contact];
 246         }
 247
 248         /**
 249          * Render actions localized
 250          *
 251          * @param array $item
 252          * @return void
 253          * @throws ImagickException
 254          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 255          */
 256         public function localize(array &$item)
 257         {
 258                 $this->profiler->startRecording('rendering');
 259                 /// @todo The following functionality needs to be cleaned up.
 260                 if (!empty($item['verb'])) {
 261                         $xmlhead = '<?xml version="1.0" encoding="UTF-8" ?>';
 262
 263                         if ($this->activity->match($item['verb'], Activity::TAG)) {
 264                                 $fields = ['author-id', 'author-link', 'author-name', 'author-network',
 265                                         'verb', 'object-type', 'resource-id', 'body', 'plink'];
 266                                 $obj = Post::selectFirst($fields, ['uri' => $item['parent-uri']]);
 267                                 if (!DBA::isResult($obj)) {
 268                                         $this->profiler->stopRecording();
 269                                         return;
 270                                 }
 271
 272                                 $author_arr = [
 273                                         'uid' => 0,
 274                                         'id' => $item['author-id'],
 275                                         'network' => $item['author-network'],
 276                                         'url' => $item['author-link'],
 277                                 ];
 278                                 $author  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $item['author-name'] . '[/url]';
 279
 280                                 $author_arr = [
 281                                         'uid' => 0,
 282                                         'id' => $obj['author-id'],
 283                                         'network' => $obj['author-network'],
 284                                         'url' => $obj['author-link'],
 285                                 ];
 286                                 $objauthor  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $obj['author-name'] . '[/url]';
 287
 288                                 switch ($obj['verb']) {
 289                                         case Activity::POST:
 290                                                 switch ($obj['object-type']) {
 291                                                         case Activity\ObjectType::EVENT:
 292                                                                 $post_type = $this->l10n->t('event');
 293                                                                 break;
 294                                                         default:
 295                                                                 $post_type = $this->l10n->t('status');
 296                                                 }
 297                                                 break;
 298
 299                                         default:
 300                                                 if ($obj['resource-id']) {
 301                                                         $post_type = $this->l10n->t('photo');
 302                                                         $m=[]; preg_match("/\[url=([^]]*)\]/", $obj['body'], $m);
 303                                                         $rr['plink'] = $m[1];
 304                                                 } else {
 305                                                         $post_type = $this->l10n->t('status');
 306                                                 }
 307                                                 // Let's break everthing ... ;-)
 308                                                 break;
 309                                 }
 310                                 $plink = '[url=' . $obj['plink'] . ']' . $post_type . '[/url]';
 311
 312                                 $parsedobj = XML::parseString($xmlhead . $item['object']);
 313
 314                                 $tag = sprintf('#[url=%s]%s[/url]', $parsedobj->id, $parsedobj->content);
 315                                 $item['body'] = $this->l10n->t('%1$s tagged %2$s\'s %3$s with %4$s', $author, $objauthor, $plink, $tag);
 316                         }
 317                 }
 318
 319                 $this->profiler->stopRecording();
 320         }
 321
 322         /**
 323          * Renders photo menu based on item
 324          *
 325          * @param array $item
 326          * @param string $formSecurityToken
 327          * @return string
 328          */
 329         public function photoMenu(array $item, string $formSecurityToken): string
 330         {
 331                 $this->profiler->startRecording('rendering');
 332                 $sub_link = $contact_url = $pm_url = $status_link = '';
 333                 $photos_link = $posts_link = $block_link = $ignore_link = '';
 334
 335                 if (Session::getLocalUser() && Session::getLocalUser() == $item['uid'] && $item['gravity'] == ItemModel::GRAVITY_PARENT && !$item['self'] && !$item['mention']) {
 336                         $sub_link = 'javascript:doFollowThread(' . $item['id'] . '); return false;';
 337                 }
 338
 339                 $author = [
 340                         'uid' => 0,
 341                         'id' => $item['author-id'],
 342                         'network' => $item['author-network'],
 343                         'url' => $item['author-link'],
 344                 ];
 345                 $profile_link = Contact::magicLinkByContact($author, $item['author-link']);
 346                 $sparkle = (strpos($profile_link, 'redir/') === 0);
 347
 348                 $cid = 0;
 349                 $pcid = $item['author-id'];
 350                 $network = '';
 351                 $rel = 0;
 352                 $condition = ['uid' => Session::getLocalUser(), 'uri-id' => $item['author-uri-id']];
 353                 $contact = DBA::selectFirst('contact', ['id', 'network', 'rel'], $condition);
 354                 if (DBA::isResult($contact)) {
 355                         $cid = $contact['id'];
 356                         $network = $contact['network'];
 357                         $rel = $contact['rel'];
 358                 }
 359
 360                 if ($sparkle) {
 361                         $status_link = $profile_link . '/status';
 362                         $photos_link = str_replace('/profile/', '/photos/', $profile_link);
 363                         $profile_link = $profile_link . '/profile';
 364                 }
 365
 366                 if (!empty($pcid)) {
 367                         $contact_url = 'contact/' . $pcid;
 368                         $posts_link  = $contact_url . '/posts';
 369                         $block_link  = $item['self'] ? '' : $contact_url . '/block?t=' . $formSecurityToken;
 370                         $ignore_link = $item['self'] ? '' : $contact_url . '/ignore?t=' . $formSecurityToken;
 371                 }
 372
 373                 if ($cid && !$item['self']) {
 374                         $contact_url = 'contact/' . $cid;
 375                         $posts_link  = $contact_url . '/posts';
 376
 377                         if (in_array($network, [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
 378                                 $pm_url = 'message/new/' . $cid;
 379                         }
 380                 }
 381
 382                 if (Session::getLocalUser()) {
 383                         $menu = [
 384                                 $this->l10n->t('Follow Thread') => $sub_link,
 385                                 $this->l10n->t('View Status') => $status_link,
 386                                 $this->l10n->t('View Profile') => $profile_link,
 387                                 $this->l10n->t('View Photos') => $photos_link,
 388                                 $this->l10n->t('Network Posts') => $posts_link,
 389                                 $this->l10n->t('View Contact') => $contact_url,
 390                                 $this->l10n->t('Send PM') => $pm_url,
 391                                 $this->l10n->t('Block') => $block_link,
 392                                 $this->l10n->t('Ignore') => $ignore_link
 393                         ];
 394
 395                         if (!empty($item['language'])) {
 396                                 $menu[$this->l10n->t('Languages')] = 'javascript:alert(\'' . ItemModel::getLanguageMessage($item) . '\');';
 397                         }
 398
 399                         if ((($cid == 0) || ($rel == Contact::FOLLOWER)) &&
 400                                 in_array($item['network'], Protocol::FEDERATED)) {
 401                                 $menu[$this->l10n->t('Connect/Follow')] = 'follow?url=' . urlencode($item['author-link']) . '&auto=1';
 402                         }
 403                 } else {
 404                         $menu = [$this->l10n->t('View Profile') => $item['author-link']];
 405                 }
 406
 407                 $args = ['item' => $item, 'menu' => $menu];
 408
 409                 Hook::callAll('item_photo_menu', $args);
 410
 411                 $menu = $args['menu'];
 412
 413                 $o = '';
 414                 foreach ($menu as $k => $v) {
 415                         if (strpos($v, 'javascript:') === 0) {
 416                                 $v = substr($v, 11);
 417                                 $o .= '<li role="menuitem"><a onclick="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 418                         } elseif ($v) {
 419                                 $o .= '<li role="menuitem"><a href="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 420                         }
 421                 }
 422                 $this->profiler->stopRecording();
 423                 return $o;
 424         }
 425
 426         /**
 427          * Checks if the activity is visible to current user
 428          *
 429          * @param array $item Activity item
 430          * @return bool Whether the item is visible to the user
 431          */
 432         public function isVisibleActivity(array $item): bool
 433         {
 434                 // Empty verb or hidden?
 435                 if (empty($item['verb']) || $this->activity->isHidden($item['verb'])) {
 436                         return false;
 437                 }
 438
 439                 // Check conditions
 440                 return (!($this->activity->match($item['verb'], Activity::FOLLOW) &&
 441                         $item['object-type'] === Activity\ObjectType::NOTE &&
 442                         empty($item['self']) &&
 443                         $item['uid'] == Session::getLocalUser())
 444                 );
 445         }
 446
 447         public function expandTags(array $item, bool $setPermissions = false): array
 448         {
 449                 // Look for any tags and linkify them
 450                 $item['inform'] = '';
 451                 $private_forum  = false;
 452                 $private_id     = null;
 453                 $only_to_forum  = false;
 454                 $forum_contact  = [];
 455                 $receivers      = [];
 456
 457                 // Convert mentions in the body to a unified format
 458                 $item['body'] = BBCode::setMentions($item['body'], $item['uid'], $item['network']);
 459
 460                 // Search for forum mentions
 461                 foreach (Tag::getFromBody($item['body'], Tag::TAG_CHARACTER[Tag::MENTION] . Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]) as $tag) {
 462                         $contact = Contact::getByURLForUser($tag[2], $item['uid']);
 463                         if (empty($contact)) {
 464                                 continue;
 465                         }
 466
 467                         $receivers[] = $contact['id'];
 468
 469                         if (!empty($item['inform'])) {
 470                                 $item['inform'] .= ',';
 471                         }
 472                         $item['inform'] .= 'cid:' . $contact['id'];
 473
 474                         if (($item['gravity'] == ItemModel::GRAVITY_COMMENT) || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
 475                                 continue;
 476                         }
 477
 478                         if (!empty($contact['prv']) || ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 479                                 $private_forum = $contact['prv'];
 480                                 $only_to_forum = ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 481                                 $private_id = $contact['id'];
 482                                 $forum_contact = $contact;
 483                                 Logger::info('Private forum or exclusive mention', ['url' => $tag[2], 'mention' => $tag[1]]);
 484                         } elseif ($item['allow_cid'] == '<' . $contact['id'] . '>') {
 485                                 $private_forum = false;
 486                                 $only_to_forum = true;
 487                                 $private_id = $contact['id'];
 488                                 $forum_contact = $contact;
 489                                 Logger::info('Public forum', ['url' => $tag[2], 'mention' => $tag[1]]);
 490                         } else {
 491                                 Logger::info('Post with forum mention will not be converted to a forum post', ['url' => $tag[2], 'mention' => $tag[1]]);
 492                         }
 493                 }
 494                 Logger::info('Got inform', ['inform' => $item['inform']]);
 495
 496                 if (($item['gravity'] == ItemModel::GRAVITY_PARENT) && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 497                         // we tagged a forum in a top level post. Now we change the post
 498                         $item['private'] = $private_forum ? ItemModel::PRIVATE : ItemModel::UNLISTED;
 499
 500                         if ($only_to_forum) {
 501                                 $item['postopts'] = '';
 502                         }
 503
 504                         $item['deny_cid'] = '';
 505                         $item['deny_gid'] = '';
 506
 507                         if ($private_forum) {
 508                                 $item['allow_cid'] = '<' . $private_id . '>';
 509                                 $item['allow_gid'] = '<' . Group::getIdForForum($forum_contact['id']) . '>';
 510                         } else {
 511                                 $item['allow_cid'] = '';
 512                                 $item['allow_gid'] = '';
 513                         }
 514                 } elseif ($setPermissions && ($item['gravity'] == ItemModel::GRAVITY_PARENT)) {
 515                         if (empty($receivers)) {
 516                                 // For security reasons direct posts without any receiver will be posts to yourself
 517                                 $self = Contact::selectFirst(['id'], ['uid' => $item['uid'], 'self' => true]);
 518                                 $receivers[] = $self['id'];
 519                         }
 520
 521                         $item['private']   = ItemModel::PRIVATE;
 522                         $item['allow_cid'] = '';
 523                         $item['allow_gid'] = '';
 524                         $item['deny_cid']  = '';
 525                         $item['deny_gid']  = '';
 526
 527                         foreach ($receivers as $receiver) {
 528                                 $item['allow_cid'] .= '<' . $receiver . '>';
 529                         }
 530                 }
 531                 return $item;
 532         }
 533
 534         public function getAuthorAvatar(array $item): string
 535         {
 536                 if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 537                         $author_avatar  = $item['contact-id'];
 538                         $author_updated = '';
 539                         $author_thumb   = $item['contact-avatar'];
 540                 } else {
 541                         $author_avatar  = $item['author-id'];
 542                         $author_updated = $item['author-updated'];
 543                         $author_thumb   = $item['author-avatar'];
 544                 }
 545
 546
 547                 if (empty($author_thumb) || Photo::isPhotoURI($author_thumb)) {
 548                         $author_thumb = Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated);
 549                 }
 550
 551                 return $author_thumb;
 552         }
 553
 554         public function getOwnerAvatar(array $item): string
 555         {
 556                 if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 557                         $owner_avatar  = $item['contact-id'];
 558                         $owner_updated = '';
 559                         $owner_thumb   = $item['contact-avatar'];
 560                 } else {
 561                         $owner_avatar   = $item['owner-id'];
 562                         $owner_updated  = $item['owner-updated'];
 563                         $owner_thumb    = $item['owner-avatar'];
 564                 }
 565
 566                 if (empty($owner_thumb) || Photo::isPhotoURI($owner_thumb)) {
 567                         $owner_thumb = Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated);
 568                 }
 569
 570                 return $owner_thumb;
 571         }
 572
 573         /**
 574          * Add a share block for the given url
 575          *
 576          * @param string $url
 577          * @param integer $uid
 578          * @param bool $add_media
 579          * @return string
 580          */
 581         public function createSharedPostByUrl(string $url, int $uid = 0, bool $add_media = false): string
 582         {
 583                 if (!empty($uid)) {
 584                         $id = ItemModel::searchByLink($url, $uid);
 585                 }
 586
 587                 if (empty($id)) {
 588                         $id = ItemModel::fetchByLink($url);
 589                 }
 590
 591                 if (!$id) {
 592                         Logger::notice('Post could not be fetched.', ['url' => $url, 'uid' => $uid, 'callstack' => System::callstack()]);
 593                         return '';
 594                 }
 595
 596                 Logger::debug('Fetched shared post', ['id' => $id, 'url' => $url, 'uid' => $uid, 'callstack' => System::callstack()]);
 597
 598                 $shared_item = Post::selectFirst(['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'], ['id' => $id]);
 599                 if (!DBA::isResult($shared_item)) {
 600                         Logger::warning('Post does not exist.', ['id' => $id, 'url' => $url, 'uid' => $uid]);
 601                         return '';
 602                 }
 603
 604                 return $this->createSharedBlockByArray($shared_item, $add_media);
 605         }
 606
 607         /**
 608          * Add a share block for the given uri-id
 609          *
 610          * @param integer $UriId
 611          * @param integer $uid
 612          * @param bool $add_media
 613          * @return string
 614          */
 615         public function createSharedPostByUriId(int $UriId, int $uid = 0, bool $add_media = false): string
 616         {
 617                 $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
 618                 $shared_item = Post::selectFirst($fields, ['uri-id' => $UriId, 'uid' => [$uid, 0], 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 619                 if (!DBA::isResult($shared_item)) {
 620                         Logger::notice('Post does not exist.', ['uri-id' => $UriId, 'uid' => $uid]);
 621                         return '';
 622                 }
 623
 624                 return $this->createSharedBlockByArray($shared_item, $add_media);
 625         }
 626
 627         /**
 628          * Add a share block for the given guid
 629          *
 630          * @param string $guid
 631          * @param integer $uid
 632          * @param bool $add_media
 633          * @return string
 634          */
 635         public function createSharedPostByGuid(string $guid, int $uid = 0, string $host = '', bool $add_media = false): string
 636         {
 637                 $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
 638                 $shared_item = Post::selectFirst($fields, ['guid' => $guid, 'uid' => [$uid, 0], 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 639
 640                 if (!DBA::isResult($shared_item) && !empty($host) && Diaspora::storeByGuid($guid, $host, true)) {
 641                         Logger::debug('Fetched post', ['guid' => $guid, 'host' => $host, 'uid' => $uid]);
 642                         $shared_item = Post::selectFirst($fields, ['guid' => $guid, 'uid' => [$uid, 0], 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 643                 } elseif (DBA::isResult($shared_item)) {
 644                         Logger::debug('Found existing post', ['guid' => $guid, 'host' => $host, 'uid' => $uid]);
 645                 }
 646
 647                 if (!DBA::isResult($shared_item)) {
 648                         Logger::notice('Post does not exist.', ['guid' => $guid, 'host' => $host, 'uid' => $uid]);
 649                         return '';
 650                 }
 651
 652                 return $this->createSharedBlockByArray($shared_item, $add_media);
 653         }
 654
 655         /**
 656          * Add a share block for the given item array
 657          *
 658          * @param array $item
 659          * @param bool $add_media
 660          * @return string
 661          */
 662         public function createSharedBlockByArray(array $item, bool $add_media = false): string
 663         {
 664                 if ($item['network'] == Protocol::FEED) {
 665                         return PageInfo::getFooterFromUrl($item['plink']);
 666                 } elseif (!in_array($item['network'] ?? '', Protocol::FEDERATED)) {
 667                         $item['guid'] = '';
 668                         $item['uri']  = '';
 669                         $item['body'] = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
 670                 } elseif ($add_media) {
 671                         $item['body'] = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
 672                 }
 673
 674                 $shared_content = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'], $item['plink'], $item['created'], $item['guid'], $item['uri']);
 675
 676                 if (!empty($item['title'])) {
 677                         $shared_content .= '[h3]' . $item['title'] . "[/h3]\n";
 678                 }
 679
 680                 $shared = ItemModel::getShareArray($item);
 681
 682                 // If it is a reshared post then reformat it to avoid display problems with two share elements
 683                 if (!empty($shared)) {
 684                         if (!empty($shared['guid']) && ($encaspulated_share = self::createSharedPostByGuid($shared['guid'], 0, '', $add_media))) {
 685                                 $item['body'] = preg_replace("/\[share.*?\](.*)\[\/share\]/ism", $encaspulated_share, $item['body']);
 686                         }
 687
 688                         $item['body'] = HTML::toBBCode(BBCode::convertForUriId($item['uri-id'], $item['body'], BBCode::ACTIVITYPUB));
 689                 }
 690
 691                 $shared_content .= $item['body'] . '[/share]';
 692
 693                 return $shared_content;
 694         }
 695 }