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