mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   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\Item as ItemHelper;
  33 use Friendica\Content\PageInfo;
  34 use Friendica\Content\Text\BBCode;
  35 use Friendica\Core\Hook;
  36 use Friendica\Core\Logger;
  37 use Friendica\Core\Protocol;
  38 use Friendica\Core\Session;
  39 use Friendica\Core\System;
  40 use Friendica\Core\Worker;
  41 use Friendica\Database\DBA;
  42 use Friendica\DI;
  43 use Friendica\Model\Attach;
  44 use Friendica\Model\Contact;
  45 use Friendica\Model\Conversation;
  46 use Friendica\Model\FileTag;
  47 use Friendica\Model\Item;
  48 use Friendica\Model\Notify;
  49 use Friendica\Model\Notify\Type;
  50 use Friendica\Model\Photo;
  51 use Friendica\Model\Post;
  52 use Friendica\Model\Tag;
  53 use Friendica\Network\HTTPException;
  54 use Friendica\Object\EMail\ItemCCEMail;
  55 use Friendica\Protocol\Activity;
  56 use Friendica\Protocol\Diaspora;
  57 use Friendica\Util\DateTimeFormat;
  58 use Friendica\Security\Security;
  59 use Friendica\Worker\Delivery;
  60
  61 function item_post(App $a) {
  62         if (!Session::isAuthenticated()) {
  63                 throw new HTTPException\ForbiddenException();
  64         }
  65
  66         $uid = local_user();
  67
  68         if (!empty($_REQUEST['dropitems'])) {
  69                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  70                 foreach ($arr_drop as $item) {
  71                         Item::deleteForUser(['id' => $item], $uid);
  72                 }
  73
  74                 $json = ['success' => 1];
  75                 System::jsonExit($json);
  76         }
  77
  78         Hook::callAll('post_local_start', $_REQUEST);
  79
  80         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  81
  82         $api_source = $_REQUEST['api_source'] ?? false;
  83
  84         $return_path = $_REQUEST['return'] ?? '';
  85         $preview = intval($_REQUEST['preview'] ?? 0);
  86
  87         /*
  88          * Check for doubly-submitted posts, and reject duplicates
  89          * Note that we have to ignore previews, otherwise nothing will post
  90          * after it's been previewed
  91          */
  92         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  93                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  94                         Logger::info('item post: duplicate post');
  95                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  96                 } else {
  97                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  98                 }
  99         }
 100
 101         // Is this a reply to something?
 102         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
 103         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 104
 105         $parent_item = null;
 106         $toplevel_item = null;
 107         $toplevel_item_id = 0;
 108         $toplevel_user_id = null;
 109
 110         $objecttype = null;
 111         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 112         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 113
 114         if ($parent_item_id || $thr_parent_uri) {
 115                 if ($parent_item_id) {
 116                         $parent_item = Item::selectFirst([], ['id' => $parent_item_id]);
 117                 } elseif ($thr_parent_uri) {
 118                         $parent_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 119                 }
 120
 121                 // if this isn't the top-level parent of the conversation, find it
 122                 if (DBA::isResult($parent_item)) {
 123                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 124                         $thr_parent_uri = $parent_item['uri'];
 125                         $toplevel_item = $parent_item;
 126
 127                         if ($parent_item['gravity'] != GRAVITY_PARENT) {
 128                                 $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item['parent']]);
 129                         }
 130                 }
 131
 132                 if (!DBA::isResult($toplevel_item)) {
 133                         notice(DI::l10n()->t('Unable to locate original post.'));
 134                         if ($return_path) {
 135                                 DI::baseUrl()->redirect($return_path);
 136                         }
 137                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 138                 }
 139
 140                 // When commenting on a public post then store the post for the current user
 141                 // This enables interaction like starring and saving into folders
 142                 if ($toplevel_item['uid'] == 0) {
 143                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user());
 144                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 145                         if ($stored) {
 146                                 $toplevel_item = Item::selectFirst([], ['id' => $stored]);
 147                         }
 148                 }
 149
 150                 $toplevel_item_id = $toplevel_item['id'];
 151                 $toplevel_user_id = $toplevel_item['uid'];
 152
 153                 $objecttype = Activity\ObjectType::COMMENT;
 154         }
 155
 156         if ($toplevel_item_id) {
 157                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 158         }
 159
 160         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 161         $app         = strip_tags($_REQUEST['source'] ?? '');
 162         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 163         $object      = $_REQUEST['object'] ?? '';
 164
 165         // Don't use "defaults" here. It would turn 0 to 1
 166         if (!isset($_REQUEST['wall'])) {
 167                 $wall = 1;
 168         } else {
 169                 $wall = $_REQUEST['wall'];
 170         }
 171
 172         // Ensure that the user id in a thread always stay the same
 173         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [local_user(), 0])) {
 174                 $profile_uid = $toplevel_user_id;
 175         }
 176
 177         // Allow commenting if it is an answer to a public post
 178         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 179
 180         // Now check that valid personal details have been provided
 181         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 182                 notice(DI::l10n()->t('Permission denied.'));
 183                 if ($return_path) {
 184                         DI::baseUrl()->redirect($return_path);
 185                 }
 186
 187                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 188         }
 189
 190         // Init post instance
 191         $orig_post = null;
 192
 193         // is this an edited post?
 194         if ($post_id > 0) {
 195                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 196         }
 197
 198         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 199
 200         if (!DBA::isResult($user) && !$toplevel_item_id) {
 201                 return 0;
 202         }
 203
 204         $categories = '';
 205         $postopts = '';
 206         $emailcc = '';
 207         $body = $_REQUEST['body'] ?? '';
 208         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 209
 210         // If we have a speparate attachment, we need to add it to the body.
 211         if (!empty($has_attachment)) {
 212                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 213                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 214                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 215
 216                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 217                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 218
 219                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 220                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 221                 $attachment = [
 222                         'type'   => $attachment_type,
 223                         'title'  => $attachment_title,
 224                         'text'   => $attachment_text,
 225                         'url'    => $attachment_url,
 226                 ];
 227
 228                 if (!empty($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                 }
 237
 238                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 239                 $body .= $att_bbcode;
 240         }
 241
 242         // Convert links with empty descriptions to links without an explicit description
 243         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 244
 245         if (!empty($orig_post)) {
 246                 $str_group_allow   = $orig_post['allow_gid'];
 247                 $str_contact_allow = $orig_post['allow_cid'];
 248                 $str_group_deny    = $orig_post['deny_gid'];
 249                 $str_contact_deny  = $orig_post['deny_cid'];
 250                 $location          = $orig_post['location'];
 251                 $coord             = $orig_post['coord'];
 252                 $verb              = $orig_post['verb'];
 253                 $objecttype        = $orig_post['object-type'];
 254                 $app               = $orig_post['app'];
 255                 $categories        = $orig_post['file'] ?? '';
 256                 $title             = trim($_REQUEST['title'] ?? '');
 257                 $body              = trim($body);
 258                 $private           = $orig_post['private'];
 259                 $pubmail_enabled   = $orig_post['pubmail'];
 260                 $network           = $orig_post['network'];
 261                 $guid              = $orig_post['guid'];
 262                 $extid             = $orig_post['extid'];
 263         } else {
 264                 $str_contact_allow = '';
 265                 $str_group_allow   = '';
 266                 $str_contact_deny  = '';
 267                 $str_group_deny    = '';
 268
 269                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 270                         $aclFormatter = DI::aclFormatter();
 271                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 272                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 273                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 274                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 275                 }
 276
 277                 $title             = trim($_REQUEST['title']    ?? '');
 278                 $location          = trim($_REQUEST['location'] ?? '');
 279                 $coord             = trim($_REQUEST['coord']    ?? '');
 280                 $verb              = trim($_REQUEST['verb']     ?? '');
 281                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 282                 $body              = trim($body);
 283                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 284                 $guid              = System::createUUID();
 285
 286                 $postopts = $_REQUEST['postopts'] ?? '';
 287
 288                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 289                         $private = Item::PRIVATE;
 290                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 291                         $private = Item::UNLISTED;
 292                 } else {
 293                         $private = Item::PUBLIC;
 294                 }
 295
 296                 // If this is a comment, set the permissions from the parent.
 297
 298                 if ($toplevel_item) {
 299                         // for non native networks use the network of the original post as network of the item
 300                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 301                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 302                                 && ($network == "")) {
 303                                 $network = $toplevel_item['network'];
 304                         }
 305
 306                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 307                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 308                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 309                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 310                         $private           = $toplevel_item['private'];
 311
 312                         $wall              = $toplevel_item['wall'];
 313                 }
 314
 315                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 316
 317                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 318                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 319                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 320                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 321                         }
 322                 }
 323
 324                 if (!strlen($body)) {
 325                         if ($preview) {
 326                                 System::jsonExit(['preview' => '']);
 327                         }
 328
 329                         notice(DI::l10n()->t('Empty post discarded.'));
 330                         if ($return_path) {
 331                                 DI::baseUrl()->redirect($return_path);
 332                         }
 333
 334                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 335                 }
 336         }
 337
 338         if (!empty($categories)) {
 339                 // get the "fileas" tags for this post
 340                 $filedas = FileTag::fileToArray($categories);
 341         }
 342
 343         // save old and new categories, so we can determine what needs to be deleted from pconfig
 344         $categories_old = $categories;
 345         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 346         $categories_new = $categories;
 347
 348         if (!empty($filedas) && is_array($filedas)) {
 349                 // append the fileas stuff to the new categories list
 350                 $categories .= FileTag::arrayToFile($filedas);
 351         }
 352
 353         // get contact info for poster
 354
 355         $author = null;
 356         $self   = false;
 357         $contact_id = 0;
 358
 359         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 360                 $self = true;
 361                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 362         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 363                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 364         }
 365
 366         if (DBA::isResult($author)) {
 367                 $contact_id = $author['id'];
 368         }
 369
 370         // get contact info for owner
 371         if ($profile_uid == local_user() || $allow_comment) {
 372                 $contact_record = $author ?: [];
 373         } else {
 374                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 375         }
 376
 377         // Look for any tags and linkify them
 378         $inform   = '';
 379         $private_forum = false;
 380         $private_id = null;
 381         $only_to_forum = false;
 382         $forum_contact = [];
 383
 384         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 385                 $tags = BBCode::getTags($body);
 386
 387                 $tagged = [];
 388
 389                 foreach ($tags as $tag) {
 390                         $tag_type = substr($tag, 0, 1);
 391
 392                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 393                                 continue;
 394                         }
 395
 396                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 397                          * Robert Johnson should be first in the $tags array
 398                          */
 399                         foreach ($tagged as $nextTag) {
 400                                 if (stristr($nextTag, $tag . ' ')) {
 401                                         continue 2;
 402                                 }
 403                         }
 404
 405                         $success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 406                         if ($success['replaced']) {
 407                                 $tagged[] = $tag;
 408                         }
 409                         // When the forum is private or the forum is addressed with a "!" make the post private
 410                         if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 411                                 $private_forum = $success['contact']['prv'];
 412                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 413                                 $private_id = $success['contact']['id'];
 414                                 $forum_contact = $success['contact'];
 415                         } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 416                                 $private_forum = false;
 417                                 $only_to_forum = true;
 418                                 $private_id = $success['contact']['id'];
 419                                 $forum_contact = $success['contact'];
 420                         }
 421                 }
 422
 423                 return $body;
 424         });
 425
 426         $original_contact_id = $contact_id;
 427
 428         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 429                 // we tagged a forum in a top level post. Now we change the post
 430                 $private = $private_forum;
 431
 432                 $str_group_allow = '';
 433                 $str_contact_deny = '';
 434                 $str_group_deny = '';
 435                 if ($private_forum) {
 436                         $str_contact_allow = '<' . $private_id . '>';
 437                 } else {
 438                         $str_contact_allow = '';
 439                 }
 440                 $contact_id = $private_id;
 441                 $contact_record = $forum_contact;
 442                 $_REQUEST['origin'] = false;
 443                 $wall = 0;
 444         }
 445
 446         /*
 447          * When a photo was uploaded into the message using the (profile wall) ajax
 448          * uploader, The permissions are initially set to disallow anybody but the
 449          * owner from seeing it. This is because the permissions may not yet have been
 450          * set for the post. If it's private, the photo permissions should be set
 451          * appropriately. But we didn't know the final permissions on the post until
 452          * now. So now we'll look for links of uploaded messages that are in the
 453          * post and set them to the same permissions as the post itself.
 454          */
 455
 456         $match = null;
 457
 458         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 459                 $objecttype = Activity\ObjectType::IMAGE;
 460         }
 461
 462         /*
 463          * Next link in any attachment references we find in the post.
 464          */
 465         $match = false;
 466
 467         /// @todo these lines should be moved to Model/Attach (Once it exists)
 468         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 469                 $attaches = $match[1];
 470                 if (count($attaches)) {
 471                         foreach ($attaches as $attach) {
 472                                 // Ensure to only modify attachments that you own
 473                                 $srch = '<' . intval($original_contact_id) . '>';
 474
 475                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 476                                                 'id' => $attach];
 477                                 if (!Attach::exists($condition)) {
 478                                         continue;
 479                                 }
 480
 481                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 482                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 483                                 $condition = ['id' => $attach];
 484                                 Attach::update($fields, $condition);
 485                         }
 486                 }
 487         }
 488
 489         // embedded bookmark or attachment in post? set bookmark flag
 490
 491         $data = BBCode::getAttachmentData($body);
 492         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 493                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 494                 $posttype = Item::PT_PAGE;
 495                 $objecttype =  Activity\ObjectType::BOOKMARK;
 496         }
 497
 498         $body = DI::bbCodeVideo()->transform($body);
 499
 500         $body = BBCode::scaleExternalImages($body);
 501
 502         // Setting the object type if not defined before
 503         if (!$objecttype) {
 504                 $objecttype = Activity\ObjectType::NOTE; // Default value
 505                 $objectdata = BBCode::getAttachedData($body);
 506
 507                 if ($objectdata["type"] == "link") {
 508                         $objecttype = Activity\ObjectType::BOOKMARK;
 509                 } elseif ($objectdata["type"] == "video") {
 510                         $objecttype = Activity\ObjectType::VIDEO;
 511                 } elseif ($objectdata["type"] == "photo") {
 512                         $objecttype = Activity\ObjectType::IMAGE;
 513                 }
 514
 515         }
 516
 517         $attachments = '';
 518         $match = false;
 519
 520         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 521                 foreach ($match[2] as $mtch) {
 522                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 523                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 524                         if ($attachment !== false) {
 525                                 if (strlen($attachments)) {
 526                                         $attachments .= ',';
 527                                 }
 528                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 529                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 530                         }
 531                         $body = str_replace($match[1],'',$body);
 532                 }
 533         }
 534
 535         if (!strlen($verb)) {
 536                 $verb = Activity::POST;
 537         }
 538
 539         if ($network == "") {
 540                 $network = Protocol::DFRN;
 541         }
 542
 543         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 544
 545         // even if the post arrived via API we are considering that it
 546         // originated on this site by default for determining relayability.
 547
 548         // Don't use "defaults" here. It would turn 0 to 1
 549         if (!isset($_REQUEST['origin'])) {
 550                 $origin = 1;
 551         } else {
 552                 $origin = $_REQUEST['origin'];
 553         }
 554
 555         $uri = Item::newURI($api_source ? $profile_uid : $uid, $guid);
 556
 557         // Fallback so that we alway have a parent uri
 558         if (!$thr_parent_uri || !$toplevel_item_id) {
 559                 $thr_parent_uri = $uri;
 560         }
 561
 562         $datarray = [];
 563         $datarray['uid']           = $profile_uid;
 564         $datarray['wall']          = $wall;
 565         $datarray['gravity']       = $gravity;
 566         $datarray['network']       = $network;
 567         $datarray['contact-id']    = $contact_id;
 568         $datarray['owner-name']    = $contact_record['name'] ?? '';
 569         $datarray['owner-link']    = $contact_record['url'] ?? '';
 570         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 571         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 572         $datarray['author-name']   = $author['name'];
 573         $datarray['author-link']   = $author['url'];
 574         $datarray['author-avatar'] = $author['thumb'];
 575         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 576         $datarray['created']       = DateTimeFormat::utcNow();
 577         $datarray['edited']        = DateTimeFormat::utcNow();
 578         $datarray['commented']     = DateTimeFormat::utcNow();
 579         $datarray['received']      = DateTimeFormat::utcNow();
 580         $datarray['changed']       = DateTimeFormat::utcNow();
 581         $datarray['extid']         = $extid;
 582         $datarray['guid']          = $guid;
 583         $datarray['uri']           = $uri;
 584         $datarray['title']         = $title;
 585         $datarray['body']          = $body;
 586         $datarray['app']           = $app;
 587         $datarray['location']      = $location;
 588         $datarray['coord']         = $coord;
 589         $datarray['file']          = $categories;
 590         $datarray['inform']        = $inform;
 591         $datarray['verb']          = $verb;
 592         $datarray['post-type']     = $posttype;
 593         $datarray['object-type']   = $objecttype;
 594         $datarray['allow_cid']     = $str_contact_allow;
 595         $datarray['allow_gid']     = $str_group_allow;
 596         $datarray['deny_cid']      = $str_contact_deny;
 597         $datarray['deny_gid']      = $str_group_deny;
 598         $datarray['private']       = $private;
 599         $datarray['pubmail']       = $pubmail_enabled;
 600         $datarray['attach']        = $attachments;
 601
 602         $datarray['thr-parent']    = $thr_parent_uri;
 603
 604         $datarray['postopts']      = $postopts;
 605         $datarray['origin']        = $origin;
 606         $datarray['moderated']     = false;
 607         $datarray['object']        = $object;
 608
 609         /*
 610          * These fields are for the convenience of addons...
 611          * 'self' if true indicates the owner is posting on their own wall
 612          * If parent is 0 it is a top-level post.
 613          */
 614         $datarray['parent']        = $toplevel_item_id;
 615         $datarray['self']          = $self;
 616
 617         // This triggers posts via API and the mirror functions
 618         $datarray['api_source'] = $api_source;
 619
 620         // This field is for storing the raw conversation data
 621         $datarray['protocol'] = Conversation::PARCEL_DIRECT;
 622
 623         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 624         if (DBA::isResult($conversation)) {
 625                 if ($conversation['conversation-uri'] != '') {
 626                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 627                 }
 628                 if ($conversation['conversation-href'] != '') {
 629                         $datarray['conversation-href'] = $conversation['conversation-href'];
 630                 }
 631         }
 632
 633         if ($orig_post) {
 634                 $datarray['edit'] = true;
 635         } else {
 636                 // If this was a share, add missing data here
 637                 $datarray = Item::addShareDataFromOriginal($datarray);
 638
 639                 $datarray['edit'] = false;
 640         }
 641
 642         // Check for hashtags in the body and repair or add hashtag links
 643         if ($preview || $orig_post) {
 644                 $datarray['body'] = Item::setHashtags($datarray['body']);
 645         }
 646
 647         // preview mode - prepare the body for display and send it via json
 648         if ($preview) {
 649                 // We set the datarray ID to -1 because in preview mode the dataray
 650                 // doesn't have an ID.
 651                 $datarray["id"] = -1;
 652                 $datarray["uri-id"] = -1;
 653                 $datarray["item_id"] = -1;
 654                 $datarray["author-network"] = Protocol::DFRN;
 655
 656                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 657
 658                 System::jsonExit(['preview' => $o]);
 659         }
 660
 661         Hook::callAll('post_local',$datarray);
 662
 663         if (!empty($datarray['cancel'])) {
 664                 Logger::info('mod_item: post cancelled by addon.');
 665                 if ($return_path) {
 666                         DI::baseUrl()->redirect($return_path);
 667                 }
 668
 669                 $json = ['cancel' => 1];
 670                 if (!empty($_REQUEST['jsreload'])) {
 671                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 672                 }
 673
 674                 System::jsonExit($json);
 675         }
 676
 677         if ($orig_post) {
 678                 // Fill the cache field
 679                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 680                 Item::putInCache($datarray);
 681
 682                 $fields = [
 683                         'title' => $datarray['title'],
 684                         'body' => $datarray['body'],
 685                         'attach' => $datarray['attach'],
 686                         'file' => $datarray['file'],
 687                         'rendered-html' => $datarray['rendered-html'],
 688                         'rendered-hash' => $datarray['rendered-hash'],
 689                         'edited' => DateTimeFormat::utcNow(),
 690                         'changed' => DateTimeFormat::utcNow()];
 691
 692                 Item::update($fields, ['id' => $post_id]);
 693
 694                 // update filetags in pconfig
 695                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 696
 697                 if ($return_path) {
 698                         DI::baseUrl()->redirect($return_path);
 699                 }
 700
 701                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 702         }
 703
 704         unset($datarray['edit']);
 705         unset($datarray['self']);
 706         unset($datarray['api_source']);
 707
 708         if ($origin) {
 709                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 710                 if (!empty($signed)) {
 711                         $datarray['diaspora_signed_text'] = json_encode($signed);
 712                 }
 713         }
 714
 715         $post_id = Item::insert($datarray);
 716
 717         if (!$post_id) {
 718                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 719                 if ($return_path) {
 720                         DI::baseUrl()->redirect($return_path);
 721                 }
 722
 723                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 724         }
 725
 726         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 727
 728         if (!DBA::isResult($datarray)) {
 729                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 730                 if ($return_path) {
 731                         DI::baseUrl()->redirect($return_path);
 732                 }
 733
 734                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 735         }
 736
 737         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 738
 739         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 740                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 741         }
 742
 743         // update filetags in pconfig
 744         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 745
 746         // These notifications are sent if someone else is commenting other your wall
 747         if ($contact_record != $author) {
 748                 if ($toplevel_item_id) {
 749                         notification([
 750                                 'type'  => Type::COMMENT,
 751                                 'otype' => Notify\ObjectType::ITEM,
 752                                 'verb'  => Activity::POST,
 753                                 'uid'   => $user['uid'],
 754                                 'cid'   => $datarray['author-id'],
 755                                 'item'  => $datarray,
 756                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 757                         ]);
 758                 } elseif (empty($forum_contact)) {
 759                         notification([
 760                                 'type'  => Type::WALL,
 761                                 'otype' => Notify\ObjectType::ITEM,
 762                                 'verb'  => Activity::POST,
 763                                 'uid'   => $user['uid'],
 764                                 'cid'   => $datarray['author-id'],
 765                                 'item'  => $datarray,
 766                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 767                         ]);
 768                 }
 769         }
 770
 771         Hook::callAll('post_local_end', $datarray);
 772
 773         if (strlen($emailcc) && $profile_uid == local_user()) {
 774                 $recipients = explode(',', $emailcc);
 775                 if (count($recipients)) {
 776                         foreach ($recipients as $recipient) {
 777                                 $address = trim($recipient);
 778                                 if (!strlen($address)) {
 779                                         continue;
 780                                 }
 781                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 782                                         $datarray, $address, $author['thumb'] ?? ''));
 783                         }
 784                 }
 785         }
 786
 787         // When we are doing some forum posting via ! we have to start the notifier manually.
 788         // These kind of posts don't initiate the notifier call in the item class.
 789         if ($only_to_forum) {
 790                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 791         }
 792
 793         Logger::info('post_complete');
 794
 795         if ($api_source) {
 796                 return $post_id;
 797         }
 798
 799         item_post_return(DI::baseUrl(), $api_source, $return_path);
 800         // NOTREACHED
 801 }
 802
 803 function item_post_return($baseurl, $api_source, $return_path)
 804 {
 805         if ($api_source) {
 806                 return;
 807         }
 808
 809         if ($return_path) {
 810                 DI::baseUrl()->redirect($return_path);
 811         }
 812
 813         $json = ['success' => 1];
 814         if (!empty($_REQUEST['jsreload'])) {
 815                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 816         }
 817
 818         Logger::info('post_json', ['json' => $json]);
 819
 820         System::jsonExit($json);
 821 }
 822
 823 function item_content(App $a)
 824 {
 825         if (!Session::isAuthenticated()) {
 826                 return;
 827         }
 828
 829         $o = '';
 830
 831         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 832                 if (DI::mode()->isAjax()) {
 833                         Item::deleteForUser(['id' => $a->argv[2]], local_user());
 834                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 835                         System::jsonExit([intval($a->argv[2]), local_user()]);
 836                 } else {
 837                         if (!empty($a->argv[3])) {
 838                                 $o = drop_item($a->argv[2], $a->argv[3]);
 839                         }
 840                         else {
 841                                 $o = drop_item($a->argv[2]);
 842                         }
 843                 }
 844         }
 845
 846         return $o;
 847 }
 848
 849 /**
 850  * @param int    $id
 851  * @param string $return
 852  * @return string
 853  * @throws HTTPException\InternalServerErrorException
 854  */
 855 function drop_item(int $id, string $return = '')
 856 {
 857         // locate item to be deleted
 858         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 859         $item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 860
 861         if (!DBA::isResult($item)) {
 862                 notice(DI::l10n()->t('Item not found.'));
 863                 DI::baseUrl()->redirect('network');
 864         }
 865
 866         if ($item['deleted']) {
 867                 return '';
 868         }
 869
 870         $contact_id = 0;
 871
 872         // check if logged in user is either the author or owner of this item
 873         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 874                 $contact_id = $item['contact-id'];
 875         }
 876
 877         if ((local_user() == $item['uid']) || $contact_id) {
 878                 if (!empty($item['parent'])) {
 879                         $parentitem = Item::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 880                 }
 881
 882                 // delete the item
 883                 Item::deleteForUser(['id' => $item['id']], local_user());
 884
 885                 $return_url = hex2bin($return);
 886
 887                 // removes update_* from return_url to ignore Ajax refresh
 888                 $return_url = str_replace("update_", "", $return_url);
 889
 890                 // Check if delete a comment
 891                 if ($item['gravity'] == GRAVITY_COMMENT) {
 892                         // Return to parent guid
 893                         if (!empty($parentitem)) {
 894                                 DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 895                                 //NOTREACHED
 896                         } // In case something goes wrong
 897                         else {
 898                                 DI::baseUrl()->redirect('network');
 899                                 //NOTREACHED
 900                         }
 901                 } else {
 902                         // if unknown location or deleting top level post called from display
 903                         if (empty($return_url) || strpos($return_url, 'display') !== false) {
 904                                 DI::baseUrl()->redirect('network');
 905                                 //NOTREACHED
 906                         } else {
 907                                 DI::baseUrl()->redirect($return_url);
 908                                 //NOTREACHED
 909                         }
 910                 }
 911         } else {
 912                 notice(DI::l10n()->t('Permission denied.'));
 913                 DI::baseUrl()->redirect('display/' . $item['guid']);
 914                 //NOTREACHED
 915         }
 916
 917         return '';
 918 }