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