src/Content/Item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, 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\Capability\IHandleUserSessions;
  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\Util\Profiler;
  41 use Friendica\Util\Proxy;
  42 use Friendica\Util\XML;
  43
  44 /**
  45  * A content helper class for displaying items
  46  */
  47 class Item
  48 {
  49         /** @var Activity */
  50         private $activity;
  51         /** @var L10n */
  52         private $l10n;
  53         /** @var Profiler */
  54         private $profiler;
  55         /** @var IHandleUserSessions */
  56         private $userSession;
  57
  58         public function __construct(Profiler $profiler, Activity $activity, L10n $l10n, IHandleUserSessions $userSession)
  59         {
  60                 $this->profiler    = $profiler;
  61                 $this->activity    = $activity;
  62                 $this->l10n        = $l10n;
  63                 $this->userSession = $userSession;
  64         }
  65
  66         /**
  67          * Return array with details for categories and folders for an item
  68          *
  69          * @param array $item
  70          * @param int   $uid
  71          * @return [array, array]
  72          *
  73          * [
  74          *      [ // categories array
  75          *          {
  76          *               'name': 'category name',
  77          *               'removeurl': 'url to remove this category',
  78          *               'first': 'is the first in this array? true/false',
  79          *               'last': 'is the last in this array? true/false',
  80          *           } ,
  81          *           ....
  82          *       ],
  83          *       [ //folders array
  84          *                      {
  85          *               'name': 'folder name',
  86          *               'removeurl': 'url to remove this folder',
  87          *               'first': 'is the first in this array? true/false',
  88          *               'last': 'is the last in this array? true/false',
  89          *           } ,
  90          *           ....
  91          *       ]
  92          *  ]
  93          */
  94         public function determineCategoriesTerms(array $item, int $uid = 0): array
  95         {
  96                 $categories = [];
  97                 $folders = [];
  98                 $first = true;
  99
 100                 $uid = $item['uid'] ?: $uid;
 101
 102                 if (empty($item['has-categories'])) {
 103                         return [$categories, $folders];
 104                 }
 105
 106                 foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::CATEGORY) as $savedFolderName) {
 107                         if (!empty($item['author-link'])) {
 108                                 $url = $item['author-link'] . "?category=" . rawurlencode($savedFolderName);
 109                         } else {
 110                                 $url = '#';
 111                         }
 112                         $categories[] = [
 113                                 'name' => $savedFolderName,
 114                                 'url' => $url,
 115                                 'removeurl' => $this->userSession->getLocalUserId() == $uid ? 'filerm/' . $item['id'] . '?cat=' . rawurlencode($savedFolderName) : '',
 116                                 'first' => $first,
 117                                 'last' => false
 118                         ];
 119                         $first = false;
 120                 }
 121
 122                 if (count($categories)) {
 123                         $categories[count($categories) - 1]['last'] = true;
 124                 }
 125
 126                 if ($this->userSession->getLocalUserId() == $uid) {
 127                         foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::FILE) as $savedFolderName) {
 128                                 $folders[] = [
 129                                         'name' => $savedFolderName,
 130                                         'url' => "#",
 131                                         'removeurl' => $this->userSession->getLocalUserId() == $uid ? 'filerm/' . $item['id'] . '?term=' . rawurlencode($savedFolderName) : '',
 132                                         'first' => $first,
 133                                         'last' => false
 134                                 ];
 135                                 $first = false;
 136                         }
 137                 }
 138
 139                 if (count($folders)) {
 140                         $folders[count($folders) - 1]['last'] = true;
 141                 }
 142
 143                 return [$categories, $folders];
 144         }
 145
 146         /**
 147          * This function removes the tag $tag from the text $body and replaces it with
 148          * the appropriate link.
 149          *
 150          * @param string $body        the text to replace the tag in
 151          * @param int    $profile_uid the user id to replace the tag for (0 = anyone)
 152          * @param string $tag         the tag to replace
 153          * @param string $network     The network of the post
 154          *
 155          * @return array|bool ['replaced' => $replaced, 'contact' => $contact] or "false" on if already replaced
 156          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 157          * @throws \ImagickException
 158          */
 159         public static function replaceTag(string &$body, int $profile_uid, string $tag, string $network = '')
 160         {
 161                 $replaced = false;
 162
 163                 //is it a person tag?
 164                 if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 165                         $tag_type = substr($tag, 0, 1);
 166                         //is it already replaced?
 167                         if (strpos($tag, '[url=')) {
 168                                 return $replaced;
 169                         }
 170
 171                         //get the person's name
 172                         $name = substr($tag, 1);
 173
 174                         // Sometimes the tag detection doesn't seem to work right
 175                         // This is some workaround
 176                         $nameparts = explode(' ', $name);
 177                         $name = $nameparts[0];
 178
 179                         // Try to detect the contact in various ways
 180                         if (strpos($name, 'http://') || strpos($name, '@')) {
 181                                 $contact = Contact::getByURLForUser($name, $profile_uid);
 182                         } else {
 183                                 $contact = false;
 184                                 $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 185
 186                                 if (strrpos($name, '+')) {
 187                                         // Is it in format @nick+number?
 188                                         $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 189                                         $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 190                                 }
 191
 192                                 // select someone by nick in the current network
 193                                 if (!DBA::isResult($contact) && ($network != '')) {
 194                                         $condition = ["`nick` = ? AND `network` = ? AND `uid` = ?",
 195                                                 $name, $network, $profile_uid];
 196                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 197                                 }
 198
 199                                 // select someone by attag in the current network
 200                                 if (!DBA::isResult($contact) && ($network != '')) {
 201                                         $condition = ["`attag` = ? AND `network` = ? AND `uid` = ?",
 202                                                 $name, $network, $profile_uid];
 203                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 204                                 }
 205
 206                                 //select someone by name in the current network
 207                                 if (!DBA::isResult($contact) && ($network != '')) {
 208                                         $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 209                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 210                                 }
 211
 212                                 // select someone by nick in any network
 213                                 if (!DBA::isResult($contact)) {
 214                                         $condition = ["`nick` = ? AND `uid` = ?", $name, $profile_uid];
 215                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 216                                 }
 217
 218                                 // select someone by attag in any network
 219                                 if (!DBA::isResult($contact)) {
 220                                         $condition = ["`attag` = ? AND `uid` = ?", $name, $profile_uid];
 221                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 222                                 }
 223
 224                                 // select someone by name in any network
 225                                 if (!DBA::isResult($contact)) {
 226                                         $condition = ['name' => $name, 'uid' => $profile_uid];
 227                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 228                                 }
 229                         }
 230
 231                         // Check if $contact has been successfully loaded
 232                         if (DBA::isResult($contact)) {
 233                                 $profile = $contact['url'];
 234                                 $newname = ($contact['name'] ?? '') ?: $contact['nick'];
 235                         }
 236
 237                         //if there is an url for this persons profile
 238                         if (isset($profile) && ($newname != '')) {
 239                                 $replaced = true;
 240                                 // create profile link
 241                                 $profile = str_replace(',', '%2c', $profile);
 242                                 $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
 243                                 $body = str_replace($tag_type . $name, $newtag, $body);
 244                         }
 245                 }
 246
 247                 return ['replaced' => $replaced, 'contact' => $contact];
 248         }
 249
 250         /**
 251          * Render actions localized
 252          *
 253          * @param array $item
 254          * @return void
 255          * @throws ImagickException
 256          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 257          */
 258         public function localize(array &$item)
 259         {
 260                 $this->profiler->startRecording('rendering');
 261                 /// @todo The following functionality needs to be cleaned up.
 262                 if (!empty($item['verb'])) {
 263                         $xmlhead = '<?xml version="1.0" encoding="UTF-8" ?>';
 264
 265                         if ($this->activity->match($item['verb'], Activity::TAG)) {
 266                                 $fields = ['author-id', 'author-link', 'author-name', 'author-network',
 267                                         'verb', 'object-type', 'resource-id', 'body', 'plink'];
 268                                 $obj = Post::selectFirst($fields, ['uri' => $item['parent-uri']]);
 269                                 if (!DBA::isResult($obj)) {
 270                                         $this->profiler->stopRecording();
 271                                         return;
 272                                 }
 273
 274                                 $author_arr = [
 275                                         'uid' => 0,
 276                                         'id' => $item['author-id'],
 277                                         'network' => $item['author-network'],
 278                                         'url' => $item['author-link'],
 279                                 ];
 280                                 $author  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $item['author-name'] . '[/url]';
 281
 282                                 $author_arr = [
 283                                         'uid' => 0,
 284                                         'id' => $obj['author-id'],
 285                                         'network' => $obj['author-network'],
 286                                         'url' => $obj['author-link'],
 287                                 ];
 288                                 $objauthor  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $obj['author-name'] . '[/url]';
 289
 290                                 switch ($obj['verb']) {
 291                                         case Activity::POST:
 292                                                 switch ($obj['object-type']) {
 293                                                         case Activity\ObjectType::EVENT:
 294                                                                 $post_type = $this->l10n->t('event');
 295                                                                 break;
 296                                                         default:
 297                                                                 $post_type = $this->l10n->t('status');
 298                                                 }
 299                                                 break;
 300
 301                                         default:
 302                                                 if ($obj['resource-id']) {
 303                                                         $post_type = $this->l10n->t('photo');
 304                                                         $m=[]; preg_match("/\[url=([^]]*)\]/", $obj['body'], $m);
 305                                                         $rr['plink'] = $m[1];
 306                                                 } else {
 307                                                         $post_type = $this->l10n->t('status');
 308                                                 }
 309                                                 // Let's break everthing ... ;-)
 310                                                 break;
 311                                 }
 312                                 $plink = '[url=' . $obj['plink'] . ']' . $post_type . '[/url]';
 313
 314                                 $parsedobj = XML::parseString($xmlhead . $item['object']);
 315
 316                                 $tag = sprintf('#[url=%s]%s[/url]', $parsedobj->id, $parsedobj->content);
 317                                 $item['body'] = $this->l10n->t('%1$s tagged %2$s\'s %3$s with %4$s', $author, $objauthor, $plink, $tag);
 318                         }
 319                 }
 320
 321                 $this->profiler->stopRecording();
 322         }
 323
 324         /**
 325          * Renders photo menu based on item
 326          *
 327          * @param array $item
 328          * @param string $formSecurityToken
 329          * @return string
 330          */
 331         public function photoMenu(array $item, string $formSecurityToken): string
 332         {
 333                 $this->profiler->startRecording('rendering');
 334                 $sub_link = $contact_url = $pm_url = $status_link = '';
 335                 $photos_link = $posts_link = $block_link = $ignore_link = '';
 336
 337                 if ($this->userSession->getLocalUserId() && $this->userSession->getLocalUserId() == $item['uid'] && $item['gravity'] == ItemModel::GRAVITY_PARENT && !$item['self'] && !$item['mention']) {
 338                         $sub_link = 'javascript:doFollowThread(' . $item['id'] . '); return false;';
 339                 }
 340
 341                 $author = [
 342                         'uid' => 0,
 343                         'id' => $item['author-id'],
 344                         'network' => $item['author-network'],
 345                         'url' => $item['author-link'],
 346                 ];
 347                 $profile_link = Contact::magicLinkByContact($author, $item['author-link']);
 348                 $sparkle = (strpos($profile_link, 'contact/redir/') === 0);
 349
 350                 $cid = 0;
 351                 $pcid = $item['author-id'];
 352                 $network = '';
 353                 $rel = 0;
 354                 $condition = ['uid' => $this->userSession->getLocalUserId(), 'uri-id' => $item['author-uri-id']];
 355                 $contact = DBA::selectFirst('contact', ['id', 'network', 'rel'], $condition);
 356                 if (DBA::isResult($contact)) {
 357                         $cid = $contact['id'];
 358                         $network = $contact['network'];
 359                         $rel = $contact['rel'];
 360                 }
 361
 362                 if ($sparkle) {
 363                         $status_link = $profile_link . '/status';
 364                         $photos_link = $profile_link . '/photos';
 365                         $profile_link = $profile_link . '/profile';
 366                 }
 367
 368                 if (!empty($pcid)) {
 369                         $contact_url = 'contact/' . $pcid;
 370                         $posts_link  = $contact_url . '/posts';
 371                         $block_link  = $item['self'] ? '' : $contact_url . '/block?t=' . $formSecurityToken;
 372                         $ignore_link = $item['self'] ? '' : $contact_url . '/ignore?t=' . $formSecurityToken;
 373                 }
 374
 375                 if ($cid && !$item['self']) {
 376                         $contact_url = 'contact/' . $cid;
 377                         $posts_link  = $contact_url . '/posts';
 378
 379                         if (in_array($network, [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
 380                                 $pm_url = 'message/new/' . $cid;
 381                         }
 382                 }
 383
 384                 if ($this->userSession->getLocalUserId()) {
 385                         $menu = [
 386                                 $this->l10n->t('Follow Thread') => $sub_link,
 387                                 $this->l10n->t('View Status') => $status_link,
 388                                 $this->l10n->t('View Profile') => $profile_link,
 389                                 $this->l10n->t('View Photos') => $photos_link,
 390                                 $this->l10n->t('Network Posts') => $posts_link,
 391                                 $this->l10n->t('View Contact') => $contact_url,
 392                                 $this->l10n->t('Send PM') => $pm_url,
 393                                 $this->l10n->t('Block') => $block_link,
 394                                 $this->l10n->t('Ignore') => $ignore_link
 395                         ];
 396
 397                         if (!empty($item['language'])) {
 398                                 $menu[$this->l10n->t('Languages')] = 'javascript:alert(\'' . ItemModel::getLanguageMessage($item) . '\');';
 399                         }
 400
 401                         if ((($cid == 0) || ($rel == Contact::FOLLOWER)) &&
 402                                 in_array($item['network'], Protocol::FEDERATED)) {
 403                                 $menu[$this->l10n->t('Connect/Follow')] = 'contact/follow?url=' . urlencode($item['author-link']) . '&auto=1';
 404                         }
 405                 } else {
 406                         $menu = [$this->l10n->t('View Profile') => $item['author-link']];
 407                 }
 408
 409                 $args = ['item' => $item, 'menu' => $menu];
 410
 411                 Hook::callAll('item_photo_menu', $args);
 412
 413                 $menu = $args['menu'];
 414
 415                 $o = '';
 416                 foreach ($menu as $k => $v) {
 417                         if (strpos($v, 'javascript:') === 0) {
 418                                 $v = substr($v, 11);
 419                                 $o .= '<li role="menuitem"><a onclick="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 420                         } elseif ($v) {
 421                                 $o .= '<li role="menuitem"><a href="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 422                         }
 423                 }
 424                 $this->profiler->stopRecording();
 425                 return $o;
 426         }
 427
 428         /**
 429          * Checks if the activity is visible to current user
 430          *
 431          * @param array $item Activity item
 432          * @return bool Whether the item is visible to the user
 433          */
 434         public function isVisibleActivity(array $item): bool
 435         {
 436                 // Empty verb or hidden?
 437                 if (empty($item['verb']) || $this->activity->isHidden($item['verb'])) {
 438                         return false;
 439                 }
 440
 441                 // Check conditions
 442                 return (!($this->activity->match($item['verb'], Activity::FOLLOW) &&
 443                         $item['object-type'] === Activity\ObjectType::NOTE &&
 444                         empty($item['self']) &&
 445                         $item['uid'] == $this->userSession->getLocalUserId())
 446                 );
 447         }
 448
 449         public function expandTags(array $item, bool $setPermissions = false): array
 450         {
 451                 // Look for any tags and linkify them
 452                 $item['inform'] = '';
 453                 $private_forum  = false;
 454                 $private_id     = null;
 455                 $only_to_forum  = false;
 456                 $forum_contact  = [];
 457                 $receivers      = [];
 458
 459                 // Convert mentions in the body to a unified format
 460                 $item['body'] = BBCode::setMentions($item['body'], $item['uid'], $item['network']);
 461
 462                 // Search for forum mentions
 463                 foreach (Tag::getFromBody($item['body'], Tag::TAG_CHARACTER[Tag::MENTION] . Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]) as $tag) {
 464                         $contact = Contact::getByURLForUser($tag[2], $item['uid']);
 465                         if (empty($contact)) {
 466                                 continue;
 467                         }
 468
 469                         $receivers[] = $contact['id'];
 470
 471                         if (!empty($item['inform'])) {
 472                                 $item['inform'] .= ',';
 473                         }
 474                         $item['inform'] .= 'cid:' . $contact['id'];
 475
 476                         if (($item['gravity'] == ItemModel::GRAVITY_COMMENT) || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
 477                                 continue;
 478                         }
 479
 480                         if (!empty($contact['prv']) || ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 481                                 $private_forum = $contact['prv'];
 482                                 $only_to_forum = ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 483                                 $private_id = $contact['id'];
 484                                 $forum_contact = $contact;
 485                                 Logger::info('Private forum or exclusive mention', ['url' => $tag[2], 'mention' => $tag[1]]);
 486                         } elseif ($item['allow_cid'] == '<' . $contact['id'] . '>') {
 487                                 $private_forum = false;
 488                                 $only_to_forum = true;
 489                                 $private_id = $contact['id'];
 490                                 $forum_contact = $contact;
 491                                 Logger::info('Public forum', ['url' => $tag[2], 'mention' => $tag[1]]);
 492                         } else {
 493                                 Logger::info('Post with forum mention will not be converted to a forum post', ['url' => $tag[2], 'mention' => $tag[1]]);
 494                         }
 495                 }
 496                 Logger::info('Got inform', ['inform' => $item['inform']]);
 497
 498                 if (($item['gravity'] == ItemModel::GRAVITY_PARENT) && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 499                         // we tagged a forum in a top level post. Now we change the post
 500                         $item['private'] = $private_forum ? ItemModel::PRIVATE : ItemModel::UNLISTED;
 501
 502                         if ($only_to_forum) {
 503                                 $item['postopts'] = '';
 504                         }
 505
 506                         $item['deny_cid'] = '';
 507                         $item['deny_gid'] = '';
 508
 509                         if ($private_forum) {
 510                                 $item['allow_cid'] = '<' . $private_id . '>';
 511                                 $item['allow_gid'] = '<' . Group::getIdForForum($forum_contact['id']) . '>';
 512                         } else {
 513                                 $item['allow_cid'] = '';
 514                                 $item['allow_gid'] = '';
 515                         }
 516                 } elseif ($setPermissions && ($item['gravity'] == ItemModel::GRAVITY_PARENT)) {
 517                         if (empty($receivers)) {
 518                                 // For security reasons direct posts without any receiver will be posts to yourself
 519                                 $self = Contact::selectFirst(['id'], ['uid' => $item['uid'], 'self' => true]);
 520                                 $receivers[] = $self['id'];
 521                         }
 522
 523                         $item['private']   = ItemModel::PRIVATE;
 524                         $item['allow_cid'] = '';
 525                         $item['allow_gid'] = '';
 526                         $item['deny_cid']  = '';
 527                         $item['deny_gid']  = '';
 528
 529                         foreach ($receivers as $receiver) {
 530                                 $item['allow_cid'] .= '<' . $receiver . '>';
 531                         }
 532                 }
 533                 return $item;
 534         }
 535
 536         public function getAuthorAvatar(array $item): string
 537         {
 538                 if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 539                         $author_avatar  = $item['contact-id'];
 540                         $author_updated = '';
 541                         $author_thumb   = $item['contact-avatar'];
 542                 } else {
 543                         $author_avatar  = $item['author-id'];
 544                         $author_updated = $item['author-updated'];
 545                         $author_thumb   = $item['author-avatar'];
 546                 }
 547
 548
 549                 if (empty($author_thumb) || Photo::isPhotoURI($author_thumb)) {
 550                         $author_thumb = Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated);
 551                 }
 552
 553                 return $author_thumb;
 554         }
 555
 556         public function getOwnerAvatar(array $item): string
 557         {
 558                 if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 559                         $owner_avatar  = $item['contact-id'];
 560                         $owner_updated = '';
 561                         $owner_thumb   = $item['contact-avatar'];
 562                 } else {
 563                         $owner_avatar   = $item['owner-id'];
 564                         $owner_updated  = $item['owner-updated'];
 565                         $owner_thumb    = $item['owner-avatar'];
 566                 }
 567
 568                 if (empty($owner_thumb) || Photo::isPhotoURI($owner_thumb)) {
 569                         $owner_thumb = Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated);
 570                 }
 571
 572                 return $owner_thumb;
 573         }
 574
 575         /**
 576          * Add a share block for the given uri-id
 577          *
 578          * @param array  $item
 579          * @param string $body
 580          * @return string
 581          */
 582         public function addSharedPost(array $item, string $body = ''): string
 583         {
 584                 if (empty($body)) {
 585                         $body = $item['body'];
 586                 }
 587
 588                 if (empty($item['quote-uri-id'])) {
 589                         return $body;
 590                 }
 591
 592                 $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network', 'quote-uri-id'];
 593                 $shared_item = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id'], 'uid' => [$item['uid'], 0], 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 594                 if (!DBA::isResult($shared_item)) {
 595                         Logger::notice('Post does not exist.', ['uri-id' => $item['quote-uri-id'], 'uid' => $item['uid']]);
 596                         return $body;
 597                 }
 598
 599                 return trim(BBCode::removeSharedData($body) . "\n" . $this->createSharedBlockByArray($shared_item, true));
 600         }
 601
 602         /**
 603          * Add a share block for the given guid
 604          *
 605          * @param string $guid
 606          * @param integer $uid
 607          * @param bool $add_media
 608          * @return string
 609          */
 610         private function createSharedPostByGuid(string $guid, bool $add_media): string
 611         {
 612                 $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
 613                 $shared_item = Post::selectFirst($fields, ['guid' => $guid, 'uid' => 0, 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 614
 615                 if (!DBA::isResult($shared_item)) {
 616                         Logger::notice('Post does not exist.', ['guid' => $guid]);
 617                         return '';
 618                 }
 619
 620                 return $this->createSharedBlockByArray($shared_item, $add_media);
 621         }
 622
 623         /**
 624          * Add a share block for the given item array
 625          *
 626          * @param array $item
 627          * @param bool $add_media
 628          * @return string
 629          */
 630         public function createSharedBlockByArray(array $item, bool $add_media = false): string
 631         {
 632                 if ($item['network'] == Protocol::FEED) {
 633                         return PageInfo::getFooterFromUrl($item['plink']);
 634                 } elseif (!in_array($item['network'] ?? '', Protocol::FEDERATED)) {
 635                         $item['guid'] = '';
 636                         $item['uri']  = '';
 637                 }
 638
 639                 if ($add_media) {
 640                         $item['body'] = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
 641                 }
 642
 643                 $shared_content = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'], $item['plink'], $item['created'], $item['guid'], $item['uri']);
 644
 645                 if (!empty($item['title'])) {
 646                         $shared_content .= '[h3]' . $item['title'] . "[/h3]\n";
 647                 }
 648
 649                 $shared = $this->getShareArray($item);
 650
 651                 // If it is a reshared post then reformat it to avoid display problems with two share elements
 652                 if (!empty($shared)) {
 653                         if (!empty($shared['guid']) && ($encaspulated_share = $this->createSharedPostByGuid($shared['guid'], true))) {
 654                                 if (!empty(BBCode::fetchShareAttributes($item['body']))) {
 655                                         $item['body'] = preg_replace("/\[share.*?\](.*)\[\/share\]/ism", $encaspulated_share, $item['body']);
 656                                 } else {
 657                                         $item['body'] .= $encaspulated_share;
 658                                 }
 659                         }
 660                         $item['body'] = HTML::toBBCode(BBCode::convertForUriId($item['uri-id'], $item['body'], BBCode::ACTIVITYPUB));
 661                 }
 662
 663                 $shared_content .= $item['body'] . '[/share]';
 664
 665                 return $shared_content;
 666         }
 667
 668         /**
 669          * Return the shared post from an item array (if the item is shared item)
 670          *
 671          * @param array $item
 672          * @param array $fields
 673          *
 674          * @return array with the shared post
 675          */
 676         public function getSharedPost(array $item, array $fields = []): array
 677         {
 678                 if (!empty($item['quote-uri-id'])) {
 679                         $shared = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id'], 'uid' => [0, $item['uid'] ?? 0]]);
 680                         if (is_array($shared)) {
 681                                 return [
 682                                         'comment' => BBCode::removeSharedData($item['body'] ?? ''),
 683                                         'post'    => $shared
 684                                 ];
 685                         }
 686                 }
 687
 688                 $attributes = BBCode::fetchShareAttributes($item['body'] ?? '');
 689                 if (!empty($attributes)) {
 690                         $shared = Post::selectFirst($fields, ['guid' => $attributes['guid'], 'uid' => [0, $item['uid'] ?? 0]]);
 691                         if (is_array($shared)) {
 692                                 return [
 693                                         'comment' => $attributes['comment'],
 694                                         'post'    => $shared
 695                                 ];
 696                         }
 697                 }
 698
 699                 return [];
 700         }
 701
 702         /**
 703          * Return share data from an item array (if the item is shared item)
 704          * We are providing the complete Item array, because at some time in the future
 705          * we hopefully will define these values not in the body anymore but in some item fields.
 706          * This function is meant to replace all similar functions in the system.
 707          *
 708          * @param array $item
 709          *
 710          * @return array with share information
 711          */
 712         private function getShareArray(array $item): array
 713         {
 714                 $attributes = BBCode::fetchShareAttributes($item['body'] ?? '');
 715                 if (!empty($attributes)) {
 716                         return $attributes;
 717                 }
 718
 719                 if (!empty($item['quote-uri-id'])) {
 720                         $shared = Post::selectFirst(['author-name', 'author-link', 'author-avatar', 'plink', 'created', 'guid', 'uri', 'body'], ['uri-id' => $item['quote-uri-id']]);
 721                         if (!empty($shared)) {
 722                                 return [
 723                                         'author'     => $shared['author-name'],
 724                                         'profile'    => $shared['author-link'],
 725                                         'avatar'     => $shared['author-avatar'],
 726                                         'link'       => $shared['plink'],
 727                                         'posted'     => $shared['created'],
 728                                         'guid'       => $shared['guid'],
 729                                         'message_id' => $shared['uri'],
 730                                         'comment'    => $item['body'],
 731                                         'shared'     => $shared['body'],
 732                                 ];
 733                         }
 734                 }
 735
 736                 return [];
 737         }
 738
 739         /**
 740          * Add a link to a shared post at the end of the post
 741          *
 742          * @param string  $body
 743          * @param integer $quote_uri_id
 744          * @return string
 745          */
 746         public function addShareLink(string $body, int $quote_uri_id): string
 747         {
 748                 $post = Post::selectFirstPost(['uri', 'plink'], ['uri-id' => $quote_uri_id]);
 749                 if (empty($post)) {
 750                         return $body;
 751                 }
 752
 753                 $body = BBCode::removeSharedData($body);
 754
 755                 $body .= "\n♲ " . ($post['plink'] ?: $post['uri']);
 756
 757                 return $body;
 758         }
 759 }