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