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\App;
  25 use Friendica\App\BaseURL;
  26 use Friendica\Content\Text\BBCode;
  27 use Friendica\Content\Text\BBCode\Video;
  28 use Friendica\Content\Text\HTML;
  29 use Friendica\Core\Hook;
  30 use Friendica\Core\L10n;
  31 use Friendica\Core\Logger;
  32 use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
  33 use Friendica\Core\Protocol;
  34 use Friendica\Core\Session\Capability\IHandleUserSessions;
  35 use Friendica\Core\System;
  36 use Friendica\Database\DBA;
  37 use Friendica\DI;
  38 use Friendica\Model\Attach;
  39 use Friendica\Model\Circle;
  40 use Friendica\Model\Contact;
  41 use Friendica\Model\Conversation;
  42 use Friendica\Model\FileTag;
  43 use Friendica\Model\Item as ItemModel;
  44 use Friendica\Model\Photo;
  45 use Friendica\Model\Post;
  46 use Friendica\Model\Tag;
  47 use Friendica\Model\User;
  48 use Friendica\Network\HTTPException;
  49 use Friendica\Object\EMail\ItemCCEMail;
  50 use Friendica\Protocol\Activity;
  51 use Friendica\Protocol\ActivityPub;
  52 use Friendica\Util\ACLFormatter;
  53 use Friendica\Util\DateTimeFormat;
  54 use Friendica\Util\Emailer;
  55 use Friendica\Util\ParseUrl;
  56 use Friendica\Util\Profiler;
  57 use Friendica\Util\Proxy;
  58 use Friendica\Util\XML;
  59 use GuzzleHttp\Psr7\Uri;
  60
  61 /**
  62  * A content helper class for displaying items
  63  */
  64 class Item
  65 {
  66         /** @var Activity */
  67         private $activity;
  68         /** @var L10n */
  69         private $l10n;
  70         /** @var Profiler */
  71         private $profiler;
  72         /** @var IHandleUserSessions */
  73         private $userSession;
  74         /** @var Video */
  75         private $bbCodeVideo;
  76         /** @var ACLFormatter */
  77         private $aclFormatter;
  78         /** @var IManagePersonalConfigValues */
  79         private $pConfig;
  80         /** @var BaseURL */
  81         private $baseURL;
  82         /** @var Emailer */
  83         private $emailer;
  84         /** @var App */
  85         private $app;
  86
  87         public function __construct(Profiler $profiler, Activity $activity, L10n $l10n, IHandleUserSessions $userSession, Video $bbCodeVideo, ACLFormatter $aclFormatter, IManagePersonalConfigValues $pConfig, BaseURL $baseURL, Emailer $emailer, App $app)
  88         {
  89                 $this->profiler     = $profiler;
  90                 $this->activity     = $activity;
  91                 $this->l10n         = $l10n;
  92                 $this->userSession  = $userSession;
  93                 $this->bbCodeVideo  = $bbCodeVideo;
  94                 $this->aclFormatter = $aclFormatter;
  95                 $this->baseURL      = $baseURL;
  96                 $this->pConfig      = $pConfig;
  97                 $this->emailer      = $emailer;
  98                 $this->app          = $app;
  99         }
 100
 101         /**
 102          * Lists categories and folders for an item
 103          *
 104          * @param array $item
 105          * @param int   $uid
 106          * @return array
 107          * [
 108          *     [ // categories array
 109          *         {
 110          *             'name': 'category name',
 111          *             'removeurl': 'url to remove this category',
 112          *             'first': 'is the first in this array? true/false',
 113          *             'last': 'is the last in this array? true/false',
 114          *         },
 115          *         ...
 116          *     ],
 117          *     [ //folders array
 118          *         {
 119          *             'name': 'folder name',
 120          *             'removeurl': 'url to remove this folder',
 121          *             'first': 'is the first in this array? true/false',
 122          *             'last': 'is the last in this array? true/false',
 123          *         } ,
 124          *         ...
 125          *     ]
 126          * ]
 127          *
 128          * @throws \Exception
 129          */
 130         public function determineCategoriesTerms(array $item, int $uid = 0): array
 131         {
 132                 $categories = [];
 133                 $folders = [];
 134                 $first = true;
 135
 136                 $uid = $item['uid'] ?: $uid;
 137
 138                 if (empty($item['has-categories'])) {
 139                         return [$categories, $folders];
 140                 }
 141
 142                 foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid) as $savedFolderName) {
 143                         if (!empty($item['author-link'])) {
 144                                 $url = $item['author-link'] . '/conversations?category=' . rawurlencode($savedFolderName);
 145                         } else {
 146                                 $url = '#';
 147                         }
 148                         $categories[] = [
 149                                 'name' => $savedFolderName,
 150                                 'url' => $url,
 151                                 'removeurl' => $this->userSession->getLocalUserId() == $uid ? 'filerm/' . $item['id'] . '?cat=' . rawurlencode($savedFolderName) : '',
 152                                 'first' => $first,
 153                                 'last' => false
 154                         ];
 155                         $first = false;
 156                 }
 157
 158                 if (count($categories)) {
 159                         $categories[count($categories) - 1]['last'] = true;
 160                 }
 161
 162                 if ($this->userSession->getLocalUserId() == $uid) {
 163                         foreach (Post\Category::getArrayByURIId($item['uri-id'], $uid, Post\Category::FILE) as $savedFolderName) {
 164                                 $folders[] = [
 165                                         'name' => $savedFolderName,
 166                                         'url' => "#",
 167                                         'removeurl' => $this->userSession->getLocalUserId() == $uid ? 'filerm/' . $item['id'] . '?term=' . rawurlencode($savedFolderName) : '',
 168                                         'first' => $first,
 169                                         'last' => false
 170                                 ];
 171                                 $first = false;
 172                         }
 173                 }
 174
 175                 if (count($folders)) {
 176                         $folders[count($folders) - 1]['last'] = true;
 177                 }
 178
 179                 return [$categories, $folders];
 180         }
 181
 182         /**
 183          * This function removes the tag $tag from the text $body and replaces it with
 184          * the appropriate link.
 185          *
 186          * @param string $body        the text to replace the tag in
 187          * @param int    $profile_uid the user id to replace the tag for (0 = anyone)
 188          * @param string $tag         the tag to replace
 189          * @param string $network     The network of the post
 190          *
 191          * @return array|bool ['replaced' => $replaced, 'contact' => $contact] or "false" on if already replaced
 192          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 193          * @throws \ImagickException
 194          */
 195         public static function replaceTag(string &$body, int $profile_uid, string $tag, string $network = '')
 196         {
 197                 $replaced = false;
 198
 199                 //is it a person tag?
 200                 if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 201                         $tag_type = substr($tag, 0, 1);
 202                         //is it already replaced?
 203                         if (strpos($tag, '[url=')) {
 204                                 return $replaced;
 205                         }
 206
 207                         //get the person's name
 208                         $name = substr($tag, 1);
 209
 210                         // Sometimes the tag detection doesn't seem to work right
 211                         // This is some workaround
 212                         $nameparts = explode(' ', $name);
 213                         $name = $nameparts[0];
 214
 215                         // Try to detect the contact in various ways
 216                         if (strpos($name, 'http://') || strpos($name, '@')) {
 217                                 $contact = Contact::getByURLForUser($name, $profile_uid);
 218                         } else {
 219                                 $contact = false;
 220                                 $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 221
 222                                 if (strrpos($name, '+')) {
 223                                         // Is it in format @nick+number?
 224                                         $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 225                                         $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 226                                 }
 227
 228                                 // select someone by nick in the current network
 229                                 if (!DBA::isResult($contact) && ($network != '')) {
 230                                         $condition = ['nick' => $name, 'network' => $network, 'uid' => $profile_uid];
 231                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 232                                 }
 233
 234                                 // select someone by attag in the current network
 235                                 if (!DBA::isResult($contact) && ($network != '')) {
 236                                         $condition = ['attag' => $name, 'network' => $network, 'uid' => $profile_uid];
 237                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 238                                 }
 239
 240                                 //select someone by name in the current network
 241                                 if (!DBA::isResult($contact) && ($network != '')) {
 242                                         $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 243                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 244                                 }
 245
 246                                 // select someone by nick in any network
 247                                 if (!DBA::isResult($contact)) {
 248                                         $condition = ['nick' => $name, 'uid' => $profile_uid];
 249                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 250                                 }
 251
 252                                 // select someone by attag in any network
 253                                 if (!DBA::isResult($contact)) {
 254                                         $condition = ['attag' => $name, 'uid' => $profile_uid];
 255                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 256                                 }
 257
 258                                 // select someone by name in any network
 259                                 if (!DBA::isResult($contact)) {
 260                                         $condition = ['name' => $name, 'uid' => $profile_uid];
 261                                         $contact = DBA::selectFirst('contact', $fields, $condition);
 262                                 }
 263                         }
 264
 265                         // Check if $contact has been successfully loaded
 266                         if (DBA::isResult($contact)) {
 267                                 $profile = $contact['url'];
 268                                 $newname = ($contact['name'] ?? '') ?: $contact['nick'];
 269                         }
 270
 271                         //if there is an url for this persons profile
 272                         if (isset($profile) && ($newname != '')) {
 273                                 $replaced = true;
 274                                 // create profile link
 275                                 $profile = str_replace(',', '%2c', $profile);
 276                                 $newtag = $tag_type . '[url=' . $profile . ']' . $newname . '[/url]';
 277                                 $body = str_replace($tag_type . $name, $newtag, $body);
 278                         }
 279                 }
 280
 281                 return ['replaced' => $replaced, 'contact' => $contact];
 282         }
 283
 284         /**
 285          * Render actions localized
 286          *
 287          * @param array $item
 288          * @return void
 289          * @throws ImagickException
 290          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 291          */
 292         public function localize(array &$item)
 293         {
 294                 $this->profiler->startRecording('rendering');
 295                 /// @todo The following functionality needs to be cleaned up.
 296                 if (!empty($item['verb'])) {
 297                         $xmlhead = '<?xml version="1.0" encoding="UTF-8" ?>';
 298
 299                         if ($this->activity->match($item['verb'], Activity::TAG)) {
 300                                 $fields = [
 301                                         'author-id', 'author-link', 'author-name', 'author-network', 'author-link', 'author-alias',
 302                                         'verb', 'object-type', 'resource-id', 'body', 'plink'
 303                                 ];
 304                                 $obj = Post::selectFirst($fields, ['uri' => $item['parent-uri']]);
 305                                 if (!DBA::isResult($obj)) {
 306                                         $this->profiler->stopRecording();
 307                                         return;
 308                                 }
 309
 310                                 $author_arr = [
 311                                         'uid'     => 0,
 312                                         'id'      => $item['author-id'],
 313                                         'network' => $item['author-network'],
 314                                         'url'     => $item['author-link'],
 315                                         'alias'   => $item['author-alias'],
 316                                 ];
 317                                 $author  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $item['author-name'] . '[/url]';
 318
 319                                 $author_arr = [
 320                                         'uid'     => 0,
 321                                         'id'      => $obj['author-id'],
 322                                         'network' => $obj['author-network'],
 323                                         'url'     => $obj['author-link'],
 324                                         'alias'   => $obj['author-alias'],
 325                                 ];
 326                                 $objauthor  = '[url=' . Contact::magicLinkByContact($author_arr) . ']' . $obj['author-name'] . '[/url]';
 327
 328                                 switch ($obj['verb']) {
 329                                         case Activity::POST:
 330                                                 switch ($obj['object-type']) {
 331                                                         case Activity\ObjectType::EVENT:
 332                                                                 $post_type = $this->l10n->t('event');
 333                                                                 break;
 334                                                         default:
 335                                                                 $post_type = $this->l10n->t('status');
 336                                                 }
 337                                                 break;
 338
 339                                         default:
 340                                                 if ($obj['resource-id']) {
 341                                                         $post_type = $this->l10n->t('photo');
 342                                                         preg_match("/\[url=([^]]*)\]/", $obj['body'], $matches);
 343                                                         $rr['plink'] = $matches[1];
 344                                                 } else {
 345                                                         $post_type = $this->l10n->t('status');
 346                                                 }
 347                                                 // Let's break everything ... ;-)
 348                                                 break;
 349                                 }
 350                                 $plink = '[url=' . $obj['plink'] . ']' . $post_type . '[/url]';
 351
 352                                 $parsedobj = XML::parseString($xmlhead . $item['object']);
 353
 354                                 $tag = sprintf('#[url=%s]%s[/url]', $parsedobj->id, $parsedobj->content);
 355                                 $item['body'] = $this->l10n->t('%1$s tagged %2$s\'s %3$s with %4$s', $author, $objauthor, $plink, $tag);
 356                         }
 357                 }
 358
 359                 $this->profiler->stopRecording();
 360         }
 361
 362         /**
 363          * Renders photo menu based on item
 364          *
 365          * @param array $item
 366          * @param string $formSecurityToken
 367          * @return string
 368          */
 369         public function photoMenu(array $item, string $formSecurityToken): string
 370         {
 371                 $this->profiler->startRecording('rendering');
 372                 $sub_link = $contact_url = $pm_url = $status_link = '';
 373                 $photos_link = $posts_link = $block_link = $ignore_link = $collapse_link = $ignoreserver_link = '';
 374
 375                 if ($this->userSession->getLocalUserId() && $this->userSession->getLocalUserId() == $item['uid'] && $item['gravity'] == ItemModel::GRAVITY_PARENT && !$item['self'] && !$item['mention']) {
 376                         $sub_link = 'javascript:doFollowThread(' . $item['id'] . '); return false;';
 377                 }
 378
 379                 $author = [
 380                         'uid'     => 0,
 381                         'id'      => $item['author-id'],
 382                         'network' => $item['author-network'],
 383                         'url'     => $item['author-link'],
 384                         'alias'   => $item['author-alias'],
 385                 ];
 386                 $profile_link = Contact::magicLinkByContact($author, $item['author-link']);
 387                 if (strpos($profile_link, 'contact/redir/') === 0) {
 388                         $status_link  = $profile_link . '?' . http_build_query(['url' => $item['author-link'] . '/status']);
 389                         $photos_link  = $profile_link . '?' . http_build_query(['url' => $item['author-link'] . '/photos']);
 390                         $profile_link = $profile_link . '?' . http_build_query(['url' => $item['author-link'] . '/profile']);
 391                 }
 392
 393                 $cid = 0;
 394                 $pcid = $item['author-id'];
 395                 $network = '';
 396                 $rel = 0;
 397                 $condition = ['uid' => $this->userSession->getLocalUserId(), 'uri-id' => $item['author-uri-id']];
 398                 $contact = DBA::selectFirst('contact', ['id', 'network', 'rel'], $condition);
 399                 if (DBA::isResult($contact)) {
 400                         $cid = $contact['id'];
 401                         $network = $contact['network'];
 402                         $rel = $contact['rel'];
 403                 }
 404
 405                 if (!empty($pcid)) {
 406                         $contact_url   = 'contact/' . $pcid;
 407                         $posts_link    = $contact_url . '/posts';
 408                         $block_link    = $item['self'] ? '' : $contact_url . '/block?t=' . $formSecurityToken;
 409                         $ignore_link   = $item['self'] ? '' : $contact_url . '/ignore?t=' . $formSecurityToken;
 410                         $collapse_link = $item['self'] ? '' : $contact_url . '/collapse?t=' . $formSecurityToken;
 411                 }
 412
 413                 $authorBaseUri = new Uri($item['author-baseurl'] ?? '');
 414                 if (!empty($item['author-gsid']) && $authorBaseUri->getHost() && !DI::baseUrl()->isLocalUrl($authorBaseUri)) {
 415                         $ignoreserver_link = 'settings/server/' . $item['author-gsid'] . '/ignore';
 416                 }
 417
 418                 if ($cid && !$item['self']) {
 419                         $contact_url = 'contact/' . $cid;
 420                         $posts_link  = $contact_url . '/posts';
 421
 422                         if (in_array($network, [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA])) {
 423                                 $pm_url = 'message/new/' . $cid;
 424                         }
 425                 }
 426
 427                 if ($this->userSession->getLocalUserId()) {
 428                         $menu = [
 429                                 $this->l10n->t('Follow Thread') => $sub_link,
 430                                 $this->l10n->t('View Status') => $status_link,
 431                                 $this->l10n->t('View Profile') => $profile_link,
 432                                 $this->l10n->t('View Photos') => $photos_link,
 433                                 $this->l10n->t('Network Posts') => $posts_link,
 434                                 $this->l10n->t('View Contact') => $contact_url,
 435                                 $this->l10n->t('Send PM') => $pm_url,
 436                                 $this->l10n->t('Block') => $block_link,
 437                                 $this->l10n->t('Ignore') => $ignore_link,
 438                                 $this->l10n->t('Collapse') => $collapse_link,
 439                                 $this->l10n->t("Ignore %s server", $authorBaseUri->getHost()) => $ignoreserver_link,
 440                         ];
 441
 442                         if (!empty($item['language'])) {
 443                                 $menu[$this->l10n->t('Languages')] = 'javascript:alert(\'' . ItemModel::getLanguageMessage($item) . '\');';
 444                         }
 445
 446                         if ((($cid == 0) || ($rel == Contact::FOLLOWER)) &&
 447                                 in_array($item['network'], Protocol::FEDERATED)
 448                         ) {
 449                                 $menu[$this->l10n->t('Connect/Follow')] = 'contact/follow?url=' . urlencode($item['author-link']) . '&auto=1';
 450                         }
 451                 } else {
 452                         $menu = [$this->l10n->t('View Profile') => $item['author-link']];
 453                 }
 454
 455                 $args = ['item' => $item, 'menu' => $menu];
 456
 457                 Hook::callAll('item_photo_menu', $args);
 458
 459                 $menu = $args['menu'];
 460
 461                 $o = '';
 462                 foreach ($menu as $k => $v) {
 463                         if (strpos($v, 'javascript:') === 0) {
 464                                 $v = substr($v, 11);
 465                                 $o .= '<li role="menuitem"><a onclick="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 466                         } elseif ($v) {
 467                                 $o .= '<li role="menuitem"><a href="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 468                         }
 469                 }
 470                 $this->profiler->stopRecording();
 471                 return $o;
 472         }
 473
 474         /**
 475          * Checks if the activity is visible to current user
 476          *
 477          * @param array $item Activity item
 478          * @return bool Whether the item is visible to the user
 479          */
 480         public function isVisibleActivity(array $item): bool
 481         {
 482                 // Empty verb or hidden?
 483                 if (empty($item['verb']) || $this->activity->isHidden($item['verb'])) {
 484                         return false;
 485                 }
 486
 487                 // Check conditions
 488                 return (!($this->activity->match($item['verb'], Activity::FOLLOW) &&
 489                         $item['object-type'] === Activity\ObjectType::NOTE &&
 490                         empty($item['self']) &&
 491                         $item['uid'] == $this->userSession->getLocalUserId())
 492                 );
 493         }
 494
 495         public function expandTags(array $item, bool $setPermissions = false): array
 496         {
 497                 // Look for any tags and linkify them
 498                 $item['inform'] = '';
 499                 $private_group  = false;
 500                 $private_id     = null;
 501                 $only_to_group  = false;
 502                 $group_contact  = [];
 503                 $receivers      = [];
 504
 505                 // Convert mentions in the body to a unified format
 506                 $item['body'] = BBCode::setMentions($item['body'], $item['uid'], $item['network']);
 507
 508                 // Search for group mentions
 509                 foreach (Tag::getFromBody($item['body'], Tag::TAG_CHARACTER[Tag::MENTION] . Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]) as $tag) {
 510                         $contact = Contact::getByURLForUser($tag[2], $item['uid']);
 511                         if (empty($contact)) {
 512                                 continue;
 513                         }
 514
 515                         $receivers[] = $contact['id'];
 516
 517                         if (!empty($item['inform'])) {
 518                                 $item['inform'] .= ',';
 519                         }
 520                         $item['inform'] .= 'cid:' . $contact['id'];
 521
 522                         if (($item['gravity'] == ItemModel::GRAVITY_COMMENT) || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
 523                                 continue;
 524                         }
 525
 526                         if (!empty($contact['prv']) || ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 527                                 $private_group = $contact['prv'];
 528                                 $only_to_group = ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 529                                 $private_id = $contact['id'];
 530                                 $group_contact = $contact;
 531                                 Logger::info('Private group or exclusive mention', ['url' => $tag[2], 'mention' => $tag[1]]);
 532                         } elseif ($item['allow_cid'] == '<' . $contact['id'] . '>') {
 533                                 $private_group = false;
 534                                 $only_to_group = true;
 535                                 $private_id = $contact['id'];
 536                                 $group_contact = $contact;
 537                                 Logger::info('Public group', ['url' => $tag[2], 'mention' => $tag[1]]);
 538                         } else {
 539                                 Logger::info('Post with group mention will not be converted to a group post', ['url' => $tag[2], 'mention' => $tag[1]]);
 540                         }
 541                 }
 542                 Logger::info('Got inform', ['inform' => $item['inform']]);
 543
 544                 if (($item['gravity'] == ItemModel::GRAVITY_PARENT) && !empty($group_contact) && ($private_group || $only_to_group)) {
 545                         // we tagged a group in a top level post. Now we change the post
 546                         $item['private'] = $private_group ? ItemModel::PRIVATE : ItemModel::UNLISTED;
 547
 548                         if ($only_to_group) {
 549                                 $cdata = Contact::getPublicAndUserContactID($group_contact['id'], $item['uid']);
 550                                 if (!empty($cdata['user'])) {
 551                                         $item['owner-id'] = $cdata['user'];
 552                                         unset($item['owner-link']);
 553                                         unset($item['owner-name']);
 554                                         unset($item['owner-avatar']);
 555                                 }
 556
 557                                 $item['postopts'] = '';
 558                         }
 559
 560                         $item['deny_cid'] = '';
 561                         $item['deny_gid'] = '';
 562
 563                         if ($private_group) {
 564                                 $item['allow_cid'] = '<' . $private_id . '>';
 565                                 $item['allow_gid'] = '<' . Circle::getIdForGroup($group_contact['id']) . '>';
 566                         } else {
 567                                 $item['allow_cid'] = '';
 568                                 $item['allow_gid'] = '';
 569                         }
 570                 } elseif ($setPermissions) {
 571                         if (empty($receivers)) {
 572                                 // For security reasons direct posts without any receiver will be posts to yourself
 573                                 $self = Contact::selectFirst(['id'], ['uid' => $item['uid'], 'self' => true]);
 574                                 $receivers[] = $self['id'];
 575                         }
 576
 577                         $item['private']   = ItemModel::PRIVATE;
 578                         $item['allow_cid'] = '';
 579                         $item['allow_gid'] = '';
 580                         $item['deny_cid']  = '';
 581                         $item['deny_gid']  = '';
 582
 583                         foreach ($receivers as $receiver) {
 584                                 $item['allow_cid'] .= '<' . $receiver . '>';
 585                         }
 586                 }
 587                 return $item;
 588         }
 589
 590         public function getAuthorAvatar(array $item): string
 591         {
 592                 if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 593                         $author_avatar  = $item['contact-id'];
 594                         $author_updated = '';
 595                         $author_thumb   = $item['contact-avatar'];
 596                 } else {
 597                         $author_avatar  = $item['author-id'];
 598                         $author_updated = $item['author-updated'];
 599                         $author_thumb   = $item['author-avatar'];
 600                 }
 601
 602
 603                 if (empty($author_thumb) || Photo::isPhotoURI($author_thumb)) {
 604                         $author_thumb = Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated);
 605                 }
 606
 607                 return $author_thumb;
 608         }
 609
 610         public function getOwnerAvatar(array $item): string
 611         {
 612                 if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 613                         $owner_avatar  = $item['contact-id'];
 614                         $owner_updated = '';
 615                         $owner_thumb   = $item['contact-avatar'];
 616                 } else {
 617                         $owner_avatar   = $item['owner-id'];
 618                         $owner_updated  = $item['owner-updated'];
 619                         $owner_thumb    = $item['owner-avatar'];
 620                 }
 621
 622                 if (empty($owner_thumb) || Photo::isPhotoURI($owner_thumb)) {
 623                         $owner_thumb = Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated);
 624                 }
 625
 626                 return $owner_thumb;
 627         }
 628
 629         /**
 630          * Add a share block for the given uri-id
 631          *
 632          * @param array  $item
 633          * @param string $body
 634          * @return string
 635          */
 636         public function addSharedPost(array $item, string $body = ''): string
 637         {
 638                 if (empty($body)) {
 639                         $body = $item['body'] ?? '';
 640                 }
 641
 642                 if (empty($item['quote-uri-id']) || ($item['quote-uri-id'] == $item['uri-id'])) {
 643                         return $body;
 644                 }
 645
 646                 $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network', 'quote-uri-id'];
 647                 $shared_item = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id'], 'uid' => [$item['uid'], 0], 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 648                 if (!DBA::isResult($shared_item)) {
 649                         Logger::notice('Post does not exist.', ['uri-id' => $item['quote-uri-id'], 'uid' => $item['uid']]);
 650                         return $body;
 651                 }
 652
 653                 return trim(BBCode::removeSharedData($body) . "\n" . $this->createSharedBlockByArray($shared_item, true));
 654         }
 655
 656         /**
 657          * Add a share block for the given guid
 658          *
 659          * @param string $guid
 660          * @param integer $uid
 661          * @param bool $add_media
 662          * @return string
 663          */
 664         private function createSharedPostByGuid(string $guid, bool $add_media): string
 665         {
 666                 $fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
 667                 $shared_item = Post::selectFirst($fields, ['guid' => $guid, 'uid' => 0, 'private' => [ItemModel::PUBLIC, ItemModel::UNLISTED]]);
 668
 669                 if (!DBA::isResult($shared_item)) {
 670                         Logger::notice('Post does not exist.', ['guid' => $guid]);
 671                         return '';
 672                 }
 673
 674                 return $this->createSharedBlockByArray($shared_item, $add_media);
 675         }
 676
 677         /**
 678          * Add a share block for the given item array
 679          *
 680          * @param array $item
 681          * @param bool $add_media   true = Media is added to the body
 682          * @param bool $for_display true = The share block is used for display purposes, false = used for connectors, transport to other systems, ...
 683          * @return string
 684          */
 685         public function createSharedBlockByArray(array $item, bool $add_media = false, bool $for_display = false): string
 686         {
 687                 if ($item['network'] == Protocol::FEED) {
 688                         return PageInfo::getFooterFromUrl($item['plink']);
 689                 } elseif (!in_array($item['network'] ?? '', Protocol::FEDERATED) && !$for_display) {
 690                         $item['guid'] = '';
 691                         $item['uri']  = '';
 692                 }
 693
 694                 if ($add_media) {
 695                         $item['body'] = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
 696                 }
 697
 698                 $shared_content = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'], $item['plink'], $item['created'], $item['guid'], $item['uri']);
 699
 700                 if (!empty($item['title'])) {
 701                         $shared_content .= '[h3]' . $item['title'] . "[/h3]\n";
 702                 }
 703
 704                 $shared = $this->getShareArray($item);
 705
 706                 // If it is a reshared post then reformat it to avoid display problems with two share elements
 707                 if (!empty($shared)) {
 708                         if (($item['network'] != Protocol::BLUESKY) && !empty($shared['guid']) && ($encapsulated_share = $this->createSharedPostByGuid($shared['guid'], true))) {
 709                                 if (!empty(BBCode::fetchShareAttributes($item['body']))) {
 710                                         $item['body'] = preg_replace("/\[share.*?\](.*)\[\/share\]/ism", $encapsulated_share, $item['body']);
 711                                 } else {
 712                                         $item['body'] .= $encapsulated_share;
 713                                 }
 714                         }
 715                         $item['body'] = HTML::toBBCode(BBCode::convertForUriId($item['uri-id'], $item['body'], BBCode::ACTIVITYPUB));
 716                 }
 717
 718                 $shared_content .= $item['body'] . '[/share]';
 719
 720                 return $shared_content;
 721         }
 722
 723         /**
 724          * Return the shared post from an item array (if the item is shared item)
 725          *
 726          * @param array $item
 727          * @param array $fields
 728          *
 729          * @return array with the shared post
 730          */
 731         public function getSharedPost(array $item, array $fields = []): array
 732         {
 733                 if (!empty($item['quote-uri-id']) && ($item['quote-uri-id'] != $item['uri-id'])) {
 734                         $shared = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id'], 'uid' => [0, $item['uid'] ?? 0]]);
 735                         if (is_array($shared)) {
 736                                 return [
 737                                         'comment' => BBCode::removeSharedData($item['body'] ?? ''),
 738                                         'post'    => $shared
 739                                 ];
 740                         }
 741                 }
 742
 743                 $attributes = BBCode::fetchShareAttributes($item['body'] ?? '');
 744                 if (!empty($attributes)) {
 745                         $shared = Post::selectFirst($fields, ['guid' => $attributes['guid'], 'uid' => [0, $item['uid'] ?? 0]]);
 746                         if (is_array($shared)) {
 747                                 return [
 748                                         'comment' => $attributes['comment'],
 749                                         'post'    => $shared
 750                                 ];
 751                         }
 752                 }
 753
 754                 return [];
 755         }
 756
 757         /**
 758          * Return share data from an item array (if the item is shared item)
 759          * We are providing the complete Item array, because at some time in the future
 760          * we hopefully will define these values not in the body anymore but in some item fields.
 761          * This function is meant to replace all similar functions in the system.
 762          *
 763          * @param array $item
 764          *
 765          * @return array with share information
 766          */
 767         private function getShareArray(array $item): array
 768         {
 769                 $attributes = BBCode::fetchShareAttributes($item['body'] ?? '');
 770                 if (!empty($attributes)) {
 771                         return $attributes;
 772                 }
 773
 774                 if (!empty($item['quote-uri-id']) && ($item['quote-uri-id'] != $item['uri-id'])) {
 775                         $shared = Post::selectFirst(['author-name', 'author-link', 'author-avatar', 'plink', 'created', 'guid', 'uri', 'body'], ['uri-id' => $item['quote-uri-id']]);
 776                         if (!empty($shared)) {
 777                                 return [
 778                                         'author'     => $shared['author-name'],
 779                                         'profile'    => $shared['author-link'],
 780                                         'avatar'     => $shared['author-avatar'],
 781                                         'link'       => $shared['plink'],
 782                                         'posted'     => $shared['created'],
 783                                         'guid'       => $shared['guid'],
 784                                         'message_id' => $shared['uri'],
 785                                         'comment'    => $item['body'],
 786                                         'shared'     => $shared['body'],
 787                                 ];
 788                         }
 789                 }
 790
 791                 return [];
 792         }
 793
 794         /**
 795          * Add a link to a shared post at the end of the post
 796          *
 797          * @param string  $body
 798          * @param integer $quote_uri_id
 799          * @return string
 800          */
 801         public function addShareLink(string $body, int $quote_uri_id): string
 802         {
 803                 $post = Post::selectFirstPost(['uri', 'plink'], ['uri-id' => $quote_uri_id]);
 804                 if (empty($post)) {
 805                         return $body;
 806                 }
 807
 808                 $body = BBCode::removeSharedData($body);
 809
 810                 $body .= "\n♲ " . ($post['plink'] ?: $post['uri']);
 811
 812                 return $body;
 813         }
 814
 815         public function storeAttachmentFromRequest(array $request): string
 816         {
 817                 $attachment_type  = $request['attachment_type'] ??  '';
 818                 $attachment_title = $request['attachment_title'] ?? '';
 819                 $attachment_text  = $request['attachment_text'] ??  '';
 820
 821                 $attachment_url     = hex2bin($request['attachment_url'] ??     '');
 822                 $attachment_img_src = hex2bin($request['attachment_img_src'] ?? '');
 823
 824                 $attachment_img_width  = $request['attachment_img_width'] ??  0;
 825                 $attachment_img_height = $request['attachment_img_height'] ?? 0;
 826
 827                 // Fetch the basic attachment data
 828                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 829                 unset($attachment['keywords']);
 830
 831                 // Overwrite the basic data with possible changes from the frontend
 832                 $attachment['type'] = $attachment_type;
 833                 $attachment['title'] = $attachment_title;
 834                 $attachment['text'] = $attachment_text;
 835                 $attachment['url'] = $attachment_url;
 836
 837                 if (!empty($attachment_img_src)) {
 838                         $attachment['images'] = [
 839                                 0 => [
 840                                         'src'    => $attachment_img_src,
 841                                         'width'  => $attachment_img_width,
 842                                         'height' => $attachment_img_height
 843                                 ]
 844                         ];
 845                 } else {
 846                         unset($attachment['images']);
 847                 }
 848
 849                 return "\n" . PageInfo::getFooterFromData($attachment);
 850         }
 851
 852         public function addCategories(array $post, string $category): array
 853         {
 854                 if (!empty($post['file'])) {
 855                         // get the "fileas" tags for this post
 856                         $filedas = FileTag::fileToArray($post['file']);
 857                 }
 858
 859                 $list_array = explode(',', trim($category));
 860                 $post['file'] = FileTag::arrayToFile($list_array, 'category');
 861
 862                 if (!empty($filedas) && is_array($filedas)) {
 863                         // append the fileas stuff to the new categories list
 864                         $post['file'] .= FileTag::arrayToFile($filedas);
 865                 }
 866                 return $post;
 867         }
 868
 869         public function getACL(array $post, array $toplevel_item, array $request): array
 870         {
 871                 // If this is a comment, set the permissions from the parent.
 872                 if ($toplevel_item) {
 873                         $post['allow_cid'] = $toplevel_item['allow_cid'] ?? '';
 874                         $post['allow_gid'] = $toplevel_item['allow_gid'] ?? '';
 875                         $post['deny_cid']  = $toplevel_item['deny_cid'] ?? '';
 876                         $post['deny_gid']  = $toplevel_item['deny_gid'] ?? '';
 877                         $post['private']   = $toplevel_item['private'];
 878                         return $post;
 879                 }
 880
 881                 $user = User::getById($post['uid'], ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 882                 if (!$user) {
 883                         throw new HTTPException\NotFoundException($this->l10n->t('Unable to fetch user.'));
 884                 }
 885
 886                 $post['allow_cid'] = isset($request['contact_allow']) ? $this->aclFormatter->toString($request['contact_allow']) : $user['allow_cid'] ?? '';
 887                 $post['allow_gid'] = isset($request['circle_allow'])  ? $this->aclFormatter->toString($request['circle_allow'])  : $user['allow_gid'] ?? '';
 888                 $post['deny_cid']  = isset($request['contact_deny'])  ? $this->aclFormatter->toString($request['contact_deny'])  : $user['deny_cid']  ?? '';
 889                 $post['deny_gid']  = isset($request['circle_deny'])   ? $this->aclFormatter->toString($request['circle_deny'])   : $user['deny_gid']  ?? '';
 890
 891                 $visibility = $request['visibility'] ?? '';
 892                 if ($visibility === 'public') {
 893                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 894                         $post['allow_cid'] = $post['allow_gid'] = $post['deny_cid'] = $post['deny_gid'] = '';
 895                 } else if ($visibility === 'custom') {
 896                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 897                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 898                         // See https://github.com/friendica/friendica/issues/9672
 899                         $post['allow_cid'] .= $this->aclFormatter->toString(Contact::getPublicIdByUserId($post['uid']));
 900                 }
 901
 902                 if ($post['allow_gid'] || $post['allow_cid'] || $post['deny_gid'] || $post['deny_cid']) {
 903                         $post['private'] = ItemModel::PRIVATE;
 904                 } elseif ($this->pConfig->get($post['uid'], 'system', 'unlisted')) {
 905                         $post['private'] = ItemModel::UNLISTED;
 906                 } else {
 907                         $post['private'] = ItemModel::PUBLIC;
 908                 }
 909
 910                 return $post;
 911         }
 912
 913         public function moveAttachmentsFromBodyToAttach(array $post): array
 914         {
 915                 if (!preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/', $post['body'], $match)) {
 916                         return $post;
 917                 }
 918
 919                 foreach ($match[2] as $attachment_id) {
 920                         $attachment = Attach::selectFirst(['id', 'uid', 'filename', 'filesize', 'filetype'], ['id' => $attachment_id, 'uid' => $post['uid']]);
 921                         if (empty($attachment)) {
 922                                 continue;
 923                         }
 924                         if ($post['attach']) {
 925                                 $post['attach'] .= ',';
 926                         }
 927                         $post['attach'] .= Post\Media::getAttachElement(
 928                                 $this->baseURL . '/attach/' . $attachment['id'],
 929                                 $attachment['filesize'],
 930                                 $attachment['filetype'],
 931                                 $attachment['filename'] ?? ''
 932                         );
 933
 934                         $fields = [
 935                                 'allow_cid' => $post['allow_cid'], 'allow_gid' => $post['allow_gid'],
 936                                 'deny_cid' => $post['deny_cid'], 'deny_gid' => $post['deny_gid']
 937                         ];
 938                         $condition = ['id' => $attachment_id];
 939                         Attach::update($fields, $condition);
 940                 }
 941
 942                 $post['body'] = str_replace($match[1], '', $post['body']);
 943
 944                 return $post;
 945         }
 946
 947         private function setObjectType(array $post): array
 948         {
 949                 if (empty($post['post-type'])) {
 950                         $post['post-type'] = empty($post['title']) ? ItemModel::PT_NOTE : ItemModel::PT_ARTICLE;
 951                 }
 952
 953                 // embedded bookmark or attachment in post? set bookmark flag
 954                 $data = BBCode::getAttachmentData($post['body']);
 955                 if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $post['body'], $match, PREG_SET_ORDER) || !empty($data['type']))
 956                         && ($post['post-type'] != ItemModel::PT_PERSONAL_NOTE)
 957                 ) {
 958                         $post['post-type'] = ItemModel::PT_PAGE;
 959                         $post['object-type'] = Activity\ObjectType::BOOKMARK;
 960                 }
 961
 962                 // Setting the object type if not defined before
 963                 if (empty($post['object-type'])) {
 964                         $post['object-type'] = ($post['gravity'] == ItemModel::GRAVITY_PARENT) ? Activity\ObjectType::NOTE : Activity\ObjectType::COMMENT;
 965                 }
 966                 return $post;
 967         }
 968
 969         public function initializePost(array $post): array
 970         {
 971                 $post['network']    = Protocol::DFRN;
 972                 $post['protocol']   = Conversation::PARCEL_DIRECT;
 973                 $post['direction']  = Conversation::PUSH;
 974                 $post['received']   = DateTimeFormat::utcNow();
 975                 $post['origin']     = true;
 976                 $post['wall']       = $post['wall'] ?? true;
 977                 $post['guid']       = $post['guid'] ?? System::createUUID();
 978                 $post['verb']       = $post['verb'] ?? Activity::POST;
 979                 $post['uri']        = $post['uri'] ?? ItemModel::newURI($post['guid']);
 980                 $post['thr-parent'] = $post['thr-parent'] ?? $post['uri'];
 981
 982                 if (empty($post['gravity'])) {
 983                         $post['gravity'] = ($post['uri'] == $post['thr-parent']) ? ItemModel::GRAVITY_PARENT : ItemModel::GRAVITY_COMMENT;
 984                 }
 985
 986                 $owner = User::getOwnerDataById($post['uid']);
 987
 988                 if (!isset($post['allow_cid']) || !isset($post['allow_gid']) || !isset($post['deny_cid']) || !isset($post['deny_gid'])) {
 989                         $post['allow_cid'] = $owner['allow_cid'];
 990                         $post['allow_gid'] = $owner['allow_gid'];
 991                         $post['deny_cid']  = $owner['deny_cid'];
 992                         $post['deny_gid']  = $owner['deny_gid'];
 993                 }
 994
 995                 if (!isset($post['private'])) {
 996                         if ($post['allow_gid'] || $post['allow_cid'] || $post['deny_gid'] || $post['deny_cid']) {
 997                                 $post['private'] = ItemModel::PRIVATE;
 998                         } elseif ($this->pConfig->get($post['uid'], 'system', 'unlisted')) {
 999                                 $post['private'] = ItemModel::UNLISTED;
1000                         } else {
1001                                 $post['private'] = ItemModel::PUBLIC;
1002                         }
1003                 }
1004
1005                 if (empty($post['contact-id'])) {
1006                         $post['contact-id'] = $owner['id'];
1007                 }
1008
1009                 if (empty($post['author-link']) && empty($post['author-id'])) {
1010                         $post['author-link']   = $owner['url'];
1011                         $post['author-id']     = Contact::getIdForURL($post['author-link']);
1012                         $post['author-name']   = $owner['name'];
1013                         $post['author-avatar'] = $owner['thumb'];
1014                 }
1015
1016                 if (empty($post['owner-link']) && empty($post['owner-id'])) {
1017                         $post['owner-link']   = $post['author-link'];
1018                         $post['owner-id']     = Contact::getIdForURL($post['owner-link']);
1019                         $post['owner-name']   = $post['author-name'];
1020                         $post['owner-avatar'] = $post['author-avatar'];
1021                 }
1022
1023                 return $post;
1024         }
1025
1026         public function finalizePost(array $post): array
1027         {
1028                 if (preg_match("/\[attachment\](.*?)\[\/attachment\]/ism", $post['body'], $matches)) {
1029                         $post['body'] = preg_replace("/\[attachment].*?\[\/attachment\]/ism", PageInfo::getFooterFromUrl($matches[1]), $post['body']);
1030                 }
1031
1032                 // Convert links with empty descriptions to links without an explicit description
1033                 $post['body'] = trim(preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $post['body']));
1034                 $post['body'] = $this->bbCodeVideo->transform($post['body']);
1035                 $post = $this->setObjectType($post);
1036
1037                 // Personal notes must never be altered to a group post.
1038                 if ($post['post-type'] != ItemModel::PT_PERSONAL_NOTE) {
1039                         // Look for any tags and linkify them
1040                         $post = $this->expandTags($post);
1041                 }
1042
1043                 return $post;
1044         }
1045
1046         public function postProcessPost(array $post, array $recipients = [])
1047         {
1048                 if (!\Friendica\Content\Feature::isEnabled($post['uid'], 'explicit_mentions') && ($post['gravity'] == ItemModel::GRAVITY_COMMENT)) {
1049                         Tag::createImplicitMentions($post['uri-id'], $post['thr-parent-id']);
1050                 }
1051
1052                 Hook::callAll('post_local_end', $post);
1053
1054                 $author = DBA::selectFirst('contact', ['thumb'], ['uid' => $post['uid'], 'self' => true]);
1055
1056                 foreach ($recipients as $recipient) {
1057                         $address = trim($recipient);
1058                         if (!$address) {
1059                                 continue;
1060                         }
1061
1062                         $this->emailer->send(new ItemCCEMail(
1063                                 $this->app,
1064                                 $this->l10n,
1065                                 $this->baseURL,
1066                                 $post,
1067                                 $address,
1068                                 $author['thumb'] ?? ''
1069                         ));
1070                 }
1071         }
1072
1073         public function copyPermissions(int $fromUriId, int $toUriId)
1074         {
1075                 $from        = Post::selectFirstPost(['author-id'], ['uri-id' => $fromUriId]);
1076                 $from_author = DBA::selectFirst('account-view', ['ap-followers'], ['id' => $from['author-id']]);
1077                 $to          = Post::selectFirstPost(['author-id'], ['uri-id' => $toUriId]);
1078                 $to_author   = DBA::selectFirst('account-view', ['ap-followers'], ['id' => $to['author-id']]);
1079
1080                 $existing = array_column(Tag::getByURIId($toUriId, [Tag::TO, Tag::CC, Tag::BCC]), 'url');
1081
1082                 foreach (Tag::getByURIId($fromUriId, [Tag::TO, Tag::CC, Tag::BCC]) as $receiver) {
1083                         if ($receiver['url'] == $from_author['ap-followers']) {
1084                                 $receiver['url']  = $to_author['ap-followers'];
1085                                 $receiver['name'] = trim(parse_url($receiver['url'], PHP_URL_PATH), '/');
1086                         }
1087                         if (in_array($receiver['url'], $existing)) {
1088                                 continue;
1089                         }
1090                         Tag::store($toUriId, $receiver['type'], $receiver['name'], $receiver['url']);
1091                 }
1092         }
1093 }