mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, 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  * This is the POST destination for most all locally posted
  21  * text stuff. This function handles status, wall-to-wall status,
  22  * local comments, and remote coments that are posted on this site
  23  * (as opposed to being delivered in a feed).
  24  * Also processed here are posts and comments coming through the
  25  * statusnet/twitter API.
  26  *
  27  * All of these become an "item" which is our basic unit of
  28  * information.
  29  */
  30
  31 use Friendica\App;
  32 use Friendica\Content\PageInfo;
  33 use Friendica\Content\Text\BBCode;
  34 use Friendica\Core\Hook;
  35 use Friendica\Core\Logger;
  36 use Friendica\Core\Protocol;
  37 use Friendica\Core\System;
  38 use Friendica\Core\Worker;
  39 use Friendica\Database\DBA;
  40 use Friendica\DI;
  41 use Friendica\Model\Attach;
  42 use Friendica\Model\Contact;
  43 use Friendica\Model\Conversation;
  44 use Friendica\Model\FileTag;
  45 use Friendica\Model\Item;
  46 use Friendica\Model\ItemURI;
  47 use Friendica\Model\Notification;
  48 use Friendica\Model\Photo;
  49 use Friendica\Model\Post;
  50 use Friendica\Model\Tag;
  51 use Friendica\Model\User;
  52 use Friendica\Network\HTTPException;
  53 use Friendica\Object\EMail\ItemCCEMail;
  54 use Friendica\Protocol\Activity;
  55 use Friendica\Security\Security;
  56 use Friendica\Util\DateTimeFormat;
  57 use Friendica\Util\ParseUrl;
  58
  59 function item_post(App $a) {
  60         if (!DI::userSession()->isAuthenticated()) {
  61                 throw new HTTPException\ForbiddenException();
  62         }
  63
  64         $uid = DI::userSession()->getLocalUserId();
  65
  66         if (!empty($_REQUEST['dropitems'])) {
  67                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  68                 foreach ($arr_drop as $item) {
  69                         Item::deleteForUser(['id' => $item], $uid);
  70                 }
  71
  72                 $json = ['success' => 1];
  73                 System::jsonExit($json);
  74         }
  75
  76         Hook::callAll('post_local_start', $_REQUEST);
  77
  78         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  79
  80         $return_path = $_REQUEST['return'] ?? '';
  81         $preview = intval($_REQUEST['preview'] ?? 0);
  82
  83         /*
  84          * Check for doubly-submitted posts, and reject duplicates
  85          * Note that we have to ignore previews, otherwise nothing will post
  86          * after it's been previewed
  87          */
  88         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  89                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  90                         Logger::warning('duplicate post');
  91                         item_post_return(DI::baseUrl(), $return_path);
  92                 } else {
  93                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  94                 }
  95         }
  96
  97         // Is this a reply to something?
  98         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
  99         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 100
 101         $parent_item = null;
 102         $toplevel_item = null;
 103         $toplevel_item_id = 0;
 104         $toplevel_user_id = null;
 105
 106         $objecttype = null;
 107         $profile_uid = DI::userSession()->getLocalUserId();
 108         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 109
 110         if ($parent_item_id || $thr_parent_uri) {
 111                 if ($parent_item_id) {
 112                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item_id]);
 113                 } elseif ($thr_parent_uri) {
 114                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 115                 }
 116
 117                 // if this isn't the top-level parent of the conversation, find it
 118                 if (DBA::isResult($parent_item)) {
 119                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 120                         $thr_parent_uri = $parent_item['uri'];
 121                         $toplevel_item = $parent_item;
 122
 123                         if ($parent_item['gravity'] != Item::GRAVITY_PARENT) {
 124                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 125                         }
 126                 }
 127
 128                 if (!DBA::isResult($toplevel_item)) {
 129                         DI::sysmsg()->addNotice(DI::l10n()->t('Unable to locate original post.'));
 130                         if ($return_path) {
 131                                 DI::baseUrl()->redirect($return_path);
 132                         }
 133                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 134                 }
 135
 136                 // When commenting on a public post then store the post for the current user
 137                 // This enables interaction like starring and saving into folders
 138                 if ($toplevel_item['uid'] == 0) {
 139                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], DI::userSession()->getLocalUserId(), ['post-reason' => Item::PR_ACTIVITY]);
 140                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 141                         if ($stored) {
 142                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $stored]);
 143                         }
 144                 }
 145
 146                 $toplevel_item_id = $toplevel_item['id'];
 147                 $toplevel_user_id = $toplevel_item['uid'];
 148
 149                 $objecttype = Activity\ObjectType::COMMENT;
 150         }
 151
 152         if ($toplevel_item_id) {
 153                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 154         }
 155
 156         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 157         $app         = strip_tags($_REQUEST['source'] ?? '');
 158         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 159         $object      = $_REQUEST['object'] ?? '';
 160
 161         // Don't use "defaults" here. It would turn 0 to 1
 162         if (!isset($_REQUEST['wall'])) {
 163                 $wall = 1;
 164         } else {
 165                 $wall = $_REQUEST['wall'];
 166         }
 167
 168         // Ensure that the user id in a thread always stay the same
 169         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [DI::userSession()->getLocalUserId(), 0])) {
 170                 $profile_uid = $toplevel_user_id;
 171         }
 172
 173         // Allow commenting if it is an answer to a public post
 174         $allow_comment = DI::userSession()->getLocalUserId() && $toplevel_item_id && in_array($toplevel_item['private'], [Item::PUBLIC, Item::UNLISTED]) && in_array($toplevel_item['network'], Protocol::FEDERATED);
 175
 176         // Now check that valid personal details have been provided
 177         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 178                 Logger::warning('Permission denied.', ['local' => DI::userSession()->getLocalUserId(), 'toplevel_item_id' => $toplevel_item_id, 'network' => $toplevel_item['network']]);
 179                 DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
 180                 if ($return_path) {
 181                         DI::baseUrl()->redirect($return_path);
 182                 }
 183
 184                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 185         }
 186
 187         // Init post instance
 188         $orig_post = null;
 189
 190         // is this an edited post?
 191         if ($post_id > 0) {
 192                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 193         }
 194
 195         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 196         if (!DBA::isResult($user) && !$toplevel_item_id) {
 197                 return 0;
 198         }
 199
 200         $categories = '';
 201         $postopts = '';
 202         $emailcc = '';
 203         $body = $_REQUEST['body'] ?? '';
 204         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 205
 206         // If we have a speparate attachment, we need to add it to the body.
 207         if (!empty($has_attachment)) {
 208                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 209                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 210                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 211
 212                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 213                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 214
 215                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 216                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 217
 218                 // Fetch the basic attachment data
 219                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 220                 unset($attachment['keywords']);
 221
 222                 // Overwrite the basic data with possible changes from the frontend
 223                 $attachment['type'] = $attachment_type;
 224                 $attachment['title'] = $attachment_title;
 225                 $attachment['text'] = $attachment_text;
 226                 $attachment['url'] = $attachment_url;
 227
 228                 if (!empty($attachment_img_src)) {
 229                         $attachment['images'] = [
 230                                 0 => [
 231                                         'src'    => $attachment_img_src,
 232                                         'width'  => $attachment_img_width,
 233                                         'height' => $attachment_img_height
 234                                 ]
 235                         ];
 236                 } else {
 237                         unset($attachment['images']);
 238                 }
 239
 240                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 241                 $body .= $att_bbcode;
 242         } elseif (preg_match("/\[attachment\](.*?)\[\/attachment\]/ism", $body, $matches)) {
 243                 $body = preg_replace("/\[attachment].*?\[\/attachment\]/ism", PageInfo::getFooterFromUrl($matches[1]), $body);
 244         }
 245
 246         // Convert links with empty descriptions to links without an explicit description
 247         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 248
 249         if (!empty($orig_post)) {
 250                 $str_group_allow   = $orig_post['allow_gid'];
 251                 $str_contact_allow = $orig_post['allow_cid'];
 252                 $str_group_deny    = $orig_post['deny_gid'];
 253                 $str_contact_deny  = $orig_post['deny_cid'];
 254                 $location          = $orig_post['location'];
 255                 $coord             = $orig_post['coord'];
 256                 $verb              = $orig_post['verb'];
 257                 $objecttype        = $orig_post['object-type'];
 258                 $app               = $orig_post['app'];
 259                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 260                 $title             = trim($_REQUEST['title'] ?? '');
 261                 $body              = trim($body);
 262                 $private           = $orig_post['private'];
 263                 $pubmail_enabled   = $orig_post['pubmail'];
 264                 $network           = $orig_post['network'];
 265                 $guid              = $orig_post['guid'];
 266                 $extid             = $orig_post['extid'];
 267         } else {
 268                 $aclFormatter = DI::aclFormatter();
 269                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 270                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 271                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 272                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 273
 274                 $visibility = $_REQUEST['visibility'] ?? '';
 275                 if ($visibility === 'public') {
 276                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 277                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 278                 } else if ($visibility === 'custom') {
 279                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 280                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 281                         // See https://github.com/friendica/friendica/issues/9672
 282                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 283                 }
 284
 285                 $title             = trim($_REQUEST['title']    ?? '');
 286                 $location          = trim($_REQUEST['location'] ?? '');
 287                 $coord             = trim($_REQUEST['coord']    ?? '');
 288                 $verb              = trim($_REQUEST['verb']     ?? '');
 289                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 290                 $body              = trim($body);
 291                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 292                 $guid              = System::createUUID();
 293
 294                 $postopts = $_REQUEST['postopts'] ?? '';
 295
 296                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 297                         $private = Item::PRIVATE;
 298                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 299                         $private = Item::UNLISTED;
 300                 } else {
 301                         $private = Item::PUBLIC;
 302                 }
 303
 304                 // If this is a comment, set the permissions from the parent.
 305
 306                 if ($toplevel_item) {
 307                         // for non native networks use the network of the original post as network of the item
 308                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 309                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 310                                 && ($network == '')) {
 311                                 $network = $toplevel_item['network'];
 312                         }
 313
 314                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 315                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 316                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 317                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 318                         $private           = $toplevel_item['private'];
 319
 320                         $wall              = $toplevel_item['wall'];
 321                 }
 322
 323                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 324
 325                 if (!strlen($body)) {
 326                         if ($preview) {
 327                                 System::jsonExit(['preview' => '']);
 328                         }
 329
 330                         DI::sysmsg()->addNotice(DI::l10n()->t('Empty post discarded.'));
 331                         if ($return_path) {
 332                                 DI::baseUrl()->redirect($return_path);
 333                         }
 334
 335                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 336                 }
 337         }
 338
 339         if (!empty($categories)) {
 340                 // get the "fileas" tags for this post
 341                 $filedas = FileTag::fileToArray($categories);
 342         }
 343
 344         $list_array = explode(',', trim($_REQUEST['category'] ?? ''));
 345         $categories = FileTag::arrayToFile($list_array, 'category');
 346
 347         if (!empty($filedas) && is_array($filedas)) {
 348                 // append the fileas stuff to the new categories list
 349                 $categories .= FileTag::arrayToFile($filedas);
 350         }
 351
 352         // get contact info for poster
 353
 354         $author = null;
 355         $self   = false;
 356         $contact_id = 0;
 357
 358         if (DI::userSession()->getLocalUserId() && ((DI::userSession()->getLocalUserId() == $profile_uid) || $allow_comment)) {
 359                 $self = true;
 360                 $author = DBA::selectFirst('contact', [], ['uid' => DI::userSession()->getLocalUserId(), 'self' => true]);
 361         } elseif (!empty(DI::userSession()->getRemoteContactID($profile_uid))) {
 362                 $author = DBA::selectFirst('contact', [], ['id' => DI::userSession()->getRemoteContactID($profile_uid)]);
 363         }
 364
 365         if (DBA::isResult($author)) {
 366                 $contact_id = $author['id'];
 367         }
 368
 369         // get contact info for owner
 370         if ($profile_uid == DI::userSession()->getLocalUserId() || $allow_comment) {
 371                 $contact_record = $author ?: [];
 372         } else {
 373                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 374         }
 375
 376         // Personal notes must never be altered to a forum post.
 377         if ($posttype != Item::PT_PERSONAL_NOTE) {
 378                 // Look for any tags and linkify them
 379                 $item = [
 380                         'uid'       => DI::userSession()->getLocalUserId() ? DI::userSession()->getLocalUserId() : $profile_uid,
 381                         'gravity'   => $toplevel_item_id ? Item::GRAVITY_COMMENT : Item::GRAVITY_PARENT,
 382                         'network'   => $network,
 383                         'body'      => $body,
 384                         'postopts'  => $postopts,
 385                         'private'   => $private,
 386                         'allow_cid' => $str_contact_allow,
 387                         'allow_gid' => $str_group_allow,
 388                         'deny_cid'  => $str_contact_deny,
 389                         'deny_gid'  => $str_group_deny,
 390                 ];
 391
 392                 $item = DI::contentItem()->expandTags($item);
 393
 394                 $body              = $item['body'];
 395                 $inform            = $item['inform'];
 396                 $postopts          = $item['postopts'];
 397                 $private           = $item['private'];
 398                 $str_contact_allow = $item['allow_cid'];
 399                 $str_group_allow   = $item['allow_gid'];
 400                 $str_contact_deny  = $item['deny_cid'];
 401                 $str_group_deny    = $item['deny_gid'];
 402         } else {
 403                 $inform   = '';
 404         }
 405
 406         /*
 407          * When a photo was uploaded into the message using the (profile wall) ajax
 408          * uploader, The permissions are initially set to disallow anybody but the
 409          * owner from seeing it. This is because the permissions may not yet have been
 410          * set for the post. If it's private, the photo permissions should be set
 411          * appropriately. But we didn't know the final permissions on the post until
 412          * now. So now we'll look for links of uploaded messages that are in the
 413          * post and set them to the same permissions as the post itself.
 414          */
 415
 416         $match = null;
 417
 418         if (!$preview && Photo::setPermissionFromBody($body, $uid, $contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 419                 $objecttype = Activity\ObjectType::IMAGE;
 420         }
 421
 422         /*
 423          * Next link in any attachment references we find in the post.
 424          */
 425         $match = [];
 426
 427         /// @todo these lines should be moved to Model/Attach (Once it exists)
 428         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 429                 $attaches = $match[1];
 430                 if (count($attaches)) {
 431                         foreach ($attaches as $attach) {
 432                                 // Ensure to only modify attachments that you own
 433                                 $srch = '<' . intval($contact_id) . '>';
 434
 435                                 $condition = [
 436                                         'allow_cid' => $srch,
 437                                         'allow_gid' => '',
 438                                         'deny_cid' => '',
 439                                         'deny_gid' => '',
 440                                         'id' => $attach,
 441                                 ];
 442                                 if (!Attach::exists($condition)) {
 443                                         continue;
 444                                 }
 445
 446                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 447                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 448                                 $condition = ['id' => $attach];
 449                                 Attach::update($fields, $condition);
 450                         }
 451                 }
 452         }
 453
 454         // embedded bookmark or attachment in post? set bookmark flag
 455
 456         $data = BBCode::getAttachmentData($body);
 457         $match = [];
 458         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data['type']))
 459                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 460                 $posttype = Item::PT_PAGE;
 461                 $objecttype =  Activity\ObjectType::BOOKMARK;
 462         }
 463
 464         $body = DI::bbCodeVideo()->transform($body);
 465
 466         $body = BBCode::scaleExternalImages($body);
 467
 468         // Setting the object type if not defined before
 469         if (!$objecttype) {
 470                 $objecttype = Activity\ObjectType::NOTE; // Default value
 471                 $objectdata = BBCode::getAttachedData($body);
 472
 473                 if ($objectdata['type'] == 'link') {
 474                         $objecttype = Activity\ObjectType::BOOKMARK;
 475                 } elseif ($objectdata['type'] == 'video') {
 476                         $objecttype = Activity\ObjectType::VIDEO;
 477                 } elseif ($objectdata['type'] == 'photo') {
 478                         $objecttype = Activity\ObjectType::IMAGE;
 479                 }
 480
 481         }
 482
 483         $attachments = '';
 484         $match = [];
 485
 486         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 487                 foreach ($match[2] as $mtch) {
 488                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 489                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 490                         if ($attachment !== false) {
 491                                 if (strlen($attachments)) {
 492                                         $attachments .= ',';
 493                                 }
 494                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 495                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 496                         }
 497                         $body = str_replace($match[1],'',$body);
 498                 }
 499         }
 500
 501         if (!strlen($verb)) {
 502                 $verb = Activity::POST;
 503         }
 504
 505         if ($network == '') {
 506                 $network = Protocol::DFRN;
 507         }
 508
 509         $gravity = ($toplevel_item_id ? Item::GRAVITY_COMMENT : Item::GRAVITY_PARENT);
 510
 511         // even if the post arrived via API we are considering that it
 512         // originated on this site by default for determining relayability.
 513
 514         // Don't use "defaults" here. It would turn 0 to 1
 515         if (!isset($_REQUEST['origin'])) {
 516                 $origin = 1;
 517         } else {
 518                 $origin = $_REQUEST['origin'];
 519         }
 520
 521         $uri = Item::newURI($guid);
 522
 523         // Fallback so that we alway have a parent uri
 524         if (!$thr_parent_uri || !$toplevel_item_id) {
 525                 $thr_parent_uri = $uri;
 526         }
 527
 528         $datarray = [
 529                 'uid'           => $profile_uid,
 530                 'wall'          => $wall,
 531                 'gravity'       => $gravity,
 532                 'network'       => $network,
 533                 'contact-id'    => $contact_id,
 534                 'owner-name'    => $contact_record['name'] ?? '',
 535                 'owner-link'    => $contact_record['url'] ?? '',
 536                 'owner-avatar'  => $contact_record['thumb'] ?? '',
 537                 'author-name'   => $author['name'],
 538                 'author-link'   => $author['url'],
 539                 'author-avatar' => $author['thumb'],
 540                 'created'       => empty($_REQUEST['created_at']) ? DateTimeFormat::utcNow() : $_REQUEST['created_at'],
 541                 'received'      => DateTimeFormat::utcNow(),
 542                 'extid'         => $extid,
 543                 'guid'          => $guid,
 544                 'uri'           => $uri,
 545                 'title'         => $title,
 546                 'body'          => $body,
 547                 'app'           => $app,
 548                 'location'      => $location,
 549                 'coord'         => $coord,
 550                 'file'          => $categories,
 551                 'inform'        => $inform,
 552                 'verb'          => $verb,
 553                 'post-type'     => $posttype,
 554                 'object-type'   => $objecttype,
 555                 'allow_cid'     => $str_contact_allow,
 556                 'allow_gid'     => $str_group_allow,
 557                 'deny_cid'      => $str_contact_deny,
 558                 'deny_gid'      => $str_group_deny,
 559                 'private'       => $private,
 560                 'pubmail'       => $pubmail_enabled,
 561                 'attach'        => $attachments,
 562                 'thr-parent'    => $thr_parent_uri,
 563                 'postopts'      => $postopts,
 564                 'origin'        => $origin,
 565                 'object'        => $object,
 566                 'attachments'   => $_REQUEST['attachments'] ?? [],
 567                 /*
 568                  * These fields are for the convenience of addons...
 569                  * 'self' if true indicates the owner is posting on their own wall
 570                  * If parent is 0 it is a top-level post.
 571                  */
 572                 'parent'        => $toplevel_item_id,
 573                 'self'          => $self,
 574                 // This triggers posts via API and the mirror functions
 575                 'api_source'    => false,
 576                 // This field is for storing the raw conversation data
 577                 'protocol'      => Conversation::PARCEL_DIRECT,
 578                 'direction'     => Conversation::PUSH,
 579         ];
 580
 581         // These cannot be part of above initialization ...
 582         $datarray['edited']    = $datarray['created'];
 583         $datarray['commented'] = $datarray['created'];
 584         $datarray['changed']   = $datarray['created'];
 585         $datarray['owner-id']  = Contact::getIdForURL($datarray['owner-link']);
 586         $datarray['author-id'] = Contact::getIdForURL($datarray['author-link']);
 587
 588         $datarray['edit'] = $orig_post;
 589
 590         // Check for hashtags in the body and repair or add hashtag links
 591         if ($preview || $orig_post) {
 592                 $datarray['body'] = Item::setHashtags($datarray['body']);
 593         }
 594
 595         // preview mode - prepare the body for display and send it via json
 596         if ($preview) {
 597                 // We set the datarray ID to -1 because in preview mode the dataray
 598                 // doesn't have an ID.
 599                 $datarray['id'] = -1;
 600                 $datarray['uri-id'] = -1;
 601                 $datarray['author-network'] = Protocol::DFRN;
 602                 $datarray['author-updated'] = '';
 603                 $datarray['author-gsid'] = 0;
 604                 $datarray['author-uri-id'] = ItemURI::getIdByURI($datarray['author-link']);
 605                 $datarray['owner-updated'] = '';
 606                 $datarray['has-media'] = false;
 607                 $datarray['quote-uri-id'] = Item::getQuoteUriId($datarray['body'], $datarray['uid']);
 608                 $datarray['body'] = BBCode::removeSharedData($datarray['body']);
 609
 610                 $o = DI::conversation()->create([array_merge($contact_record, $datarray)], 'search', false, true);
 611
 612                 System::jsonExit(['preview' => $o]);
 613         }
 614
 615         Hook::callAll('post_local',$datarray);
 616
 617         if (!empty($_REQUEST['scheduled_at'])) {
 618                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimeZone());
 619                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 620                         unset($datarray['created']);
 621                         unset($datarray['edited']);
 622                         unset($datarray['commented']);
 623                         unset($datarray['received']);
 624                         unset($datarray['changed']);
 625                         unset($datarray['edit']);
 626                         unset($datarray['self']);
 627                         unset($datarray['api_source']);
 628
 629                         Post\Delayed::add($datarray['uri'], $datarray, Worker::PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 630                         item_post_return(DI::baseUrl(), $return_path);
 631                 }
 632         }
 633
 634         if (!empty($datarray['cancel'])) {
 635                 Logger::info('mod_item: post cancelled by addon.');
 636                 if ($return_path) {
 637                         DI::baseUrl()->redirect($return_path);
 638                 }
 639
 640                 $json = ['cancel' => 1];
 641                 if (!empty($_REQUEST['jsreload'])) {
 642                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 643                 }
 644
 645                 System::jsonExit($json);
 646         }
 647
 648         $datarray['uri-id'] = ItemURI::getIdByURI($datarray['uri']);
 649
 650         $quote_uri_id = Item::getQuoteUriId($datarray['body'], $datarray['uid']);
 651         if (!empty($quote_uri_id)) {
 652                 $datarray['quote-uri-id'] = $quote_uri_id;
 653                 $datarray['body']         = BBCode::removeSharedData($datarray['body']);
 654         }
 655
 656         if ($orig_post) {
 657                 $fields = [
 658                         'title'   => $datarray['title'],
 659                         'body'    => $datarray['body'],
 660                         'attach'  => $datarray['attach'],
 661                         'file'    => $datarray['file'],
 662                         'edited'  => DateTimeFormat::utcNow(),
 663                         'changed' => DateTimeFormat::utcNow()
 664                 ];
 665
 666                 Item::update($fields, ['id' => $post_id]);
 667                 Item::updateDisplayCache($datarray['uri-id']);
 668
 669                 if ($return_path) {
 670                         DI::baseUrl()->redirect($return_path);
 671                 }
 672
 673                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 674         }
 675
 676         unset($datarray['edit']);
 677         unset($datarray['self']);
 678         unset($datarray['api_source']);
 679
 680         $post_id = Item::insert($datarray);
 681
 682         if (!$post_id) {
 683                 DI::sysmsg()->addNotice(DI::l10n()->t('Item wasn\'t stored.'));
 684                 if ($return_path) {
 685                         DI::baseUrl()->redirect($return_path);
 686                 }
 687
 688                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 689         }
 690
 691         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 692
 693         if (!DBA::isResult($datarray)) {
 694                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 695                 if ($return_path) {
 696                         DI::baseUrl()->redirect($return_path);
 697                 }
 698
 699                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 700         }
 701
 702         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 703
 704         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == Item::GRAVITY_COMMENT)) {
 705                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 706         }
 707
 708         // These notifications are sent if someone else is commenting other your wall
 709         if ($contact_record != $author) {
 710                 if ($toplevel_item_id) {
 711                         DI::notify()->createFromArray([
 712                                 'type'  => Notification\Type::COMMENT,
 713                                 'otype' => Notification\ObjectType::ITEM,
 714                                 'verb'  => Activity::POST,
 715                                 'uid'   => $profile_uid,
 716                                 'cid'   => $datarray['author-id'],
 717                                 'item'  => $datarray,
 718                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 719                         ]);
 720                 } elseif (empty($forum_contact)) {
 721                         DI::notify()->createFromArray([
 722                                 'type'  => Notification\Type::WALL,
 723                                 'otype' => Notification\ObjectType::ITEM,
 724                                 'verb'  => Activity::POST,
 725                                 'uid'   => $profile_uid,
 726                                 'cid'   => $datarray['author-id'],
 727                                 'item'  => $datarray,
 728                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 729                         ]);
 730                 }
 731         }
 732
 733         Hook::callAll('post_local_end', $datarray);
 734
 735         if (strlen($emailcc) && $profile_uid == DI::userSession()->getLocalUserId()) {
 736                 $recipients = explode(',', $emailcc);
 737                 if (count($recipients)) {
 738                         foreach ($recipients as $recipient) {
 739                                 $address = trim($recipient);
 740                                 if (!strlen($address)) {
 741                                         continue;
 742                                 }
 743                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 744                                         $datarray, $address, $author['thumb'] ?? ''));
 745                         }
 746                 }
 747         }
 748
 749         Logger::debug('post_complete');
 750
 751         item_post_return(DI::baseUrl(), $return_path);
 752         // NOTREACHED
 753 }
 754
 755 function item_post_return($baseurl, $return_path)
 756 {
 757         if ($return_path) {
 758                 DI::baseUrl()->redirect($return_path);
 759         }
 760
 761         $json = ['success' => 1];
 762         if (!empty($_REQUEST['jsreload'])) {
 763                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 764         }
 765
 766         Logger::debug('post_json', ['json' => $json]);
 767
 768         System::jsonExit($json);
 769 }
 770
 771 function item_content(App $a)
 772 {
 773         if (!DI::userSession()->isAuthenticated()) {
 774                 throw new HTTPException\UnauthorizedException();
 775         }
 776
 777         $args = DI::args();
 778
 779         if (!$args->has(3)) {
 780                 throw new HTTPException\BadRequestException();
 781         }
 782
 783         $o = '';
 784         switch ($args->get(1)) {
 785                 case 'drop':
 786                         if (DI::mode()->isAjax()) {
 787                                 Item::deleteForUser(['id' => $args->get(2)], DI::userSession()->getLocalUserId());
 788                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 789                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 790                         } else {
 791                                 if (!empty($args->get(3))) {
 792                                         $o = drop_item($args->get(2), $args->get(3));
 793                                 } else {
 794                                         $o = drop_item($args->get(2));
 795                                 }
 796                         }
 797                         break;
 798
 799                 case 'block':
 800                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 801                         if (empty($item['author-id'])) {
 802                                 throw new HTTPException\NotFoundException('Item not found');
 803                         }
 804
 805                         Contact\User::setBlocked($item['author-id'], DI::userSession()->getLocalUserId(), true);
 806
 807                         if (DI::mode()->isAjax()) {
 808                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 809                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 810                         } else {
 811                                 item_redirect_after_action($item, $args->get(3));
 812                         }
 813                         break;
 814         }
 815
 816         return $o;
 817 }
 818
 819 /**
 820  * @param int    $id
 821  * @param string $return
 822  * @return string
 823  * @throws HTTPException\InternalServerErrorException
 824  */
 825 function drop_item(int $id, string $return = ''): string
 826 {
 827         // Locate item to be deleted
 828         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'], ['id' => $id]);
 829
 830         if (!DBA::isResult($item)) {
 831                 DI::sysmsg()->addNotice(DI::l10n()->t('Item not found.'));
 832                 DI::baseUrl()->redirect('network');
 833                 //NOTREACHED
 834         }
 835
 836         if ($item['deleted']) {
 837                 return '';
 838         }
 839
 840         $contact_id = 0;
 841
 842         // check if logged in user is either the author or owner of this item
 843         if (DI::userSession()->getRemoteContactID($item['uid']) == $item['contact-id']) {
 844                 $contact_id = $item['contact-id'];
 845         }
 846
 847         if ((DI::userSession()->getLocalUserId() == $item['uid']) || $contact_id) {
 848                 // delete the item
 849                 Item::deleteForUser(['id' => $item['id']], DI::userSession()->getLocalUserId());
 850
 851                 item_redirect_after_action($item, $return);
 852                 //NOTREACHED
 853         } else {
 854                 Logger::warning('Permission denied.', ['local' => DI::userSession()->getLocalUserId(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 855                 DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
 856                 DI::baseUrl()->redirect('display/' . $item['guid']);
 857                 //NOTREACHED
 858         }
 859
 860         return '';
 861 }
 862
 863 function item_redirect_after_action(array $item, string $returnUrlHex)
 864 {
 865         $return_url = hex2bin($returnUrlHex);
 866
 867         // removes update_* from return_url to ignore Ajax refresh
 868         $return_url = str_replace('update_', '', $return_url);
 869
 870         // Check if delete a comment
 871         if ($item['gravity'] == Item::GRAVITY_COMMENT) {
 872                 if (!empty($item['parent'])) {
 873                         $parentitem = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid'], ['id' => $item['parent']]);
 874                 }
 875
 876                 // Return to parent guid
 877                 if (!empty($parentitem)) {
 878                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 879                         //NOTREACHED
 880                 } // In case something goes wrong
 881                 else {
 882                         DI::baseUrl()->redirect('network');
 883                         //NOTREACHED
 884                 }
 885         } else {
 886                 // if unknown location or deleting top level post called from display
 887                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 888                         DI::baseUrl()->redirect('network');
 889                         //NOTREACHED
 890                 } else {
 891                         DI::baseUrl()->redirect($return_url);
 892                         //NOTREACHED
 893                 }
 894         }
 895 }