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         }
 243
 244         // Convert links with empty descriptions to links without an explicit description
 245         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 246
 247         if (!empty($orig_post)) {
 248                 $str_group_allow   = $orig_post['allow_gid'];
 249                 $str_contact_allow = $orig_post['allow_cid'];
 250                 $str_group_deny    = $orig_post['deny_gid'];
 251                 $str_contact_deny  = $orig_post['deny_cid'];
 252                 $location          = $orig_post['location'];
 253                 $coord             = $orig_post['coord'];
 254                 $verb              = $orig_post['verb'];
 255                 $objecttype        = $orig_post['object-type'];
 256                 $app               = $orig_post['app'];
 257                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 258                 $title             = trim($_REQUEST['title'] ?? '');
 259                 $body              = trim($body);
 260                 $private           = $orig_post['private'];
 261                 $pubmail_enabled   = $orig_post['pubmail'];
 262                 $network           = $orig_post['network'];
 263                 $guid              = $orig_post['guid'];
 264                 $extid             = $orig_post['extid'];
 265         } else {
 266                 $aclFormatter = DI::aclFormatter();
 267                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 268                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 269                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 270                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 271
 272                 $visibility = $_REQUEST['visibility'] ?? '';
 273                 if ($visibility === 'public') {
 274                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 275                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 276                 } else if ($visibility === 'custom') {
 277                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 278                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 279                         // See https://github.com/friendica/friendica/issues/9672
 280                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 281                 }
 282
 283                 $title             = trim($_REQUEST['title']    ?? '');
 284                 $location          = trim($_REQUEST['location'] ?? '');
 285                 $coord             = trim($_REQUEST['coord']    ?? '');
 286                 $verb              = trim($_REQUEST['verb']     ?? '');
 287                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 288                 $body              = trim($body);
 289                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 290                 $guid              = System::createUUID();
 291
 292                 $postopts = $_REQUEST['postopts'] ?? '';
 293
 294                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 295                         $private = Item::PRIVATE;
 296                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 297                         $private = Item::UNLISTED;
 298                 } else {
 299                         $private = Item::PUBLIC;
 300                 }
 301
 302                 // If this is a comment, set the permissions from the parent.
 303
 304                 if ($toplevel_item) {
 305                         // for non native networks use the network of the original post as network of the item
 306                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 307                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 308                                 && ($network == '')) {
 309                                 $network = $toplevel_item['network'];
 310                         }
 311
 312                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 313                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 314                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 315                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 316                         $private           = $toplevel_item['private'];
 317
 318                         $wall              = $toplevel_item['wall'];
 319                 }
 320
 321                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 322
 323                 if (!strlen($body)) {
 324                         if ($preview) {
 325                                 System::jsonExit(['preview' => '']);
 326                         }
 327
 328                         DI::sysmsg()->addNotice(DI::l10n()->t('Empty post discarded.'));
 329                         if ($return_path) {
 330                                 DI::baseUrl()->redirect($return_path);
 331                         }
 332
 333                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 334                 }
 335         }
 336
 337         if (!empty($categories)) {
 338                 // get the "fileas" tags for this post
 339                 $filedas = FileTag::fileToArray($categories);
 340         }
 341
 342         $list_array = explode(',', trim($_REQUEST['category'] ?? ''));
 343         $categories = FileTag::arrayToFile($list_array, 'category');
 344
 345         if (!empty($filedas) && is_array($filedas)) {
 346                 // append the fileas stuff to the new categories list
 347                 $categories .= FileTag::arrayToFile($filedas);
 348         }
 349
 350         // get contact info for poster
 351
 352         $author = null;
 353         $self   = false;
 354         $contact_id = 0;
 355
 356         if (DI::userSession()->getLocalUserId() && ((DI::userSession()->getLocalUserId() == $profile_uid) || $allow_comment)) {
 357                 $self = true;
 358                 $author = DBA::selectFirst('contact', [], ['uid' => DI::userSession()->getLocalUserId(), 'self' => true]);
 359         } elseif (!empty(DI::userSession()->getRemoteContactID($profile_uid))) {
 360                 $author = DBA::selectFirst('contact', [], ['id' => DI::userSession()->getRemoteContactID($profile_uid)]);
 361         }
 362
 363         if (DBA::isResult($author)) {
 364                 $contact_id = $author['id'];
 365         }
 366
 367         // get contact info for owner
 368         if ($profile_uid == DI::userSession()->getLocalUserId() || $allow_comment) {
 369                 $contact_record = $author ?: [];
 370         } else {
 371                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 372         }
 373
 374         // Personal notes must never be altered to a forum post.
 375         if ($posttype != Item::PT_PERSONAL_NOTE) {
 376                 // Look for any tags and linkify them
 377                 $item = [
 378                         'uid'       => DI::userSession()->getLocalUserId() ? DI::userSession()->getLocalUserId() : $profile_uid,
 379                         'gravity'   => $toplevel_item_id ? Item::GRAVITY_COMMENT : Item::GRAVITY_PARENT,
 380                         'network'   => $network,
 381                         'body'      => $body,
 382                         'postopts'  => $postopts,
 383                         'private'   => $private,
 384                         'allow_cid' => $str_contact_allow,
 385                         'allow_gid' => $str_group_allow,
 386                         'deny_cid'  => $str_contact_deny,
 387                         'deny_gid'  => $str_group_deny,
 388                 ];
 389
 390                 $item = DI::contentItem()->expandTags($item);
 391
 392                 $body              = $item['body'];
 393                 $inform            = $item['inform'];
 394                 $postopts          = $item['postopts'];
 395                 $private           = $item['private'];
 396                 $str_contact_allow = $item['allow_cid'];
 397                 $str_group_allow   = $item['allow_gid'];
 398                 $str_contact_deny  = $item['deny_cid'];
 399                 $str_group_deny    = $item['deny_gid'];
 400         } else {
 401                 $inform   = '';
 402         }
 403
 404         /*
 405          * When a photo was uploaded into the message using the (profile wall) ajax
 406          * uploader, The permissions are initially set to disallow anybody but the
 407          * owner from seeing it. This is because the permissions may not yet have been
 408          * set for the post. If it's private, the photo permissions should be set
 409          * appropriately. But we didn't know the final permissions on the post until
 410          * now. So now we'll look for links of uploaded messages that are in the
 411          * post and set them to the same permissions as the post itself.
 412          */
 413
 414         $match = null;
 415
 416         if (!$preview && Photo::setPermissionFromBody($body, $uid, $contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 417                 $objecttype = Activity\ObjectType::IMAGE;
 418         }
 419
 420         /*
 421          * Next link in any attachment references we find in the post.
 422          */
 423         $match = [];
 424
 425         /// @todo these lines should be moved to Model/Attach (Once it exists)
 426         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 427                 $attaches = $match[1];
 428                 if (count($attaches)) {
 429                         foreach ($attaches as $attach) {
 430                                 // Ensure to only modify attachments that you own
 431                                 $srch = '<' . intval($contact_id) . '>';
 432
 433                                 $condition = [
 434                                         'allow_cid' => $srch,
 435                                         'allow_gid' => '',
 436                                         'deny_cid' => '',
 437                                         'deny_gid' => '',
 438                                         'id' => $attach,
 439                                 ];
 440                                 if (!Attach::exists($condition)) {
 441                                         continue;
 442                                 }
 443
 444                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 445                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 446                                 $condition = ['id' => $attach];
 447                                 Attach::update($fields, $condition);
 448                         }
 449                 }
 450         }
 451
 452         // embedded bookmark or attachment in post? set bookmark flag
 453
 454         $data = BBCode::getAttachmentData($body);
 455         $match = [];
 456         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data['type']))
 457                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 458                 $posttype = Item::PT_PAGE;
 459                 $objecttype =  Activity\ObjectType::BOOKMARK;
 460         }
 461
 462         $body = DI::bbCodeVideo()->transform($body);
 463
 464         $body = BBCode::scaleExternalImages($body);
 465
 466         // Setting the object type if not defined before
 467         if (!$objecttype) {
 468                 $objecttype = Activity\ObjectType::NOTE; // Default value
 469                 $objectdata = BBCode::getAttachedData($body);
 470
 471                 if ($objectdata['type'] == 'link') {
 472                         $objecttype = Activity\ObjectType::BOOKMARK;
 473                 } elseif ($objectdata['type'] == 'video') {
 474                         $objecttype = Activity\ObjectType::VIDEO;
 475                 } elseif ($objectdata['type'] == 'photo') {
 476                         $objecttype = Activity\ObjectType::IMAGE;
 477                 }
 478
 479         }
 480
 481         $attachments = '';
 482         $match = [];
 483
 484         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 485                 foreach ($match[2] as $mtch) {
 486                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 487                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 488                         if ($attachment !== false) {
 489                                 if (strlen($attachments)) {
 490                                         $attachments .= ',';
 491                                 }
 492                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 493                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 494                         }
 495                         $body = str_replace($match[1],'',$body);
 496                 }
 497         }
 498
 499         if (!strlen($verb)) {
 500                 $verb = Activity::POST;
 501         }
 502
 503         if ($network == '') {
 504                 $network = Protocol::DFRN;
 505         }
 506
 507         $gravity = ($toplevel_item_id ? Item::GRAVITY_COMMENT : Item::GRAVITY_PARENT);
 508
 509         // even if the post arrived via API we are considering that it
 510         // originated on this site by default for determining relayability.
 511
 512         // Don't use "defaults" here. It would turn 0 to 1
 513         if (!isset($_REQUEST['origin'])) {
 514                 $origin = 1;
 515         } else {
 516                 $origin = $_REQUEST['origin'];
 517         }
 518
 519         $uri = Item::newURI($guid);
 520
 521         // Fallback so that we alway have a parent uri
 522         if (!$thr_parent_uri || !$toplevel_item_id) {
 523                 $thr_parent_uri = $uri;
 524         }
 525
 526         $datarray = [
 527                 'uid'           => $profile_uid,
 528                 'wall'          => $wall,
 529                 'gravity'       => $gravity,
 530                 'network'       => $network,
 531                 'contact-id'    => $contact_id,
 532                 'owner-name'    => $contact_record['name'] ?? '',
 533                 'owner-link'    => $contact_record['url'] ?? '',
 534                 'owner-avatar'  => $contact_record['thumb'] ?? '',
 535                 'author-name'   => $author['name'],
 536                 'author-link'   => $author['url'],
 537                 'author-avatar' => $author['thumb'],
 538                 'created'       => empty($_REQUEST['created_at']) ? DateTimeFormat::utcNow() : $_REQUEST['created_at'],
 539                 'received'      => DateTimeFormat::utcNow(),
 540                 'extid'         => $extid,
 541                 'guid'          => $guid,
 542                 'uri'           => $uri,
 543                 'title'         => $title,
 544                 'body'          => $body,
 545                 'app'           => $app,
 546                 'location'      => $location,
 547                 'coord'         => $coord,
 548                 'file'          => $categories,
 549                 'inform'        => $inform,
 550                 'verb'          => $verb,
 551                 'post-type'     => $posttype,
 552                 'object-type'   => $objecttype,
 553                 'allow_cid'     => $str_contact_allow,
 554                 'allow_gid'     => $str_group_allow,
 555                 'deny_cid'      => $str_contact_deny,
 556                 'deny_gid'      => $str_group_deny,
 557                 'private'       => $private,
 558                 'pubmail'       => $pubmail_enabled,
 559                 'attach'        => $attachments,
 560                 'thr-parent'    => $thr_parent_uri,
 561                 'postopts'      => $postopts,
 562                 'origin'        => $origin,
 563                 'object'        => $object,
 564                 'attachments'   => $_REQUEST['attachments'] ?? [],
 565                 /*
 566                  * These fields are for the convenience of addons...
 567                  * 'self' if true indicates the owner is posting on their own wall
 568                  * If parent is 0 it is a top-level post.
 569                  */
 570                 'parent'        => $toplevel_item_id,
 571                 'self'          => $self,
 572                 // This triggers posts via API and the mirror functions
 573                 'api_source'    => false,
 574                 // This field is for storing the raw conversation data
 575                 'protocol'      => Conversation::PARCEL_DIRECT,
 576                 'direction'     => Conversation::PUSH,
 577         ];
 578
 579         // These cannot be part of above initialization ...
 580         $datarray['edited']    = $datarray['created'];
 581         $datarray['commented'] = $datarray['created'];
 582         $datarray['changed']   = $datarray['created'];
 583         $datarray['owner-id']  = Contact::getIdForURL($datarray['owner-link']);
 584         $datarray['author-id'] = Contact::getIdForURL($datarray['author-link']);
 585
 586         $datarray['edit'] = $orig_post;
 587
 588         // Check for hashtags in the body and repair or add hashtag links
 589         if ($preview || $orig_post) {
 590                 $datarray['body'] = Item::setHashtags($datarray['body']);
 591         }
 592
 593         // preview mode - prepare the body for display and send it via json
 594         if ($preview) {
 595                 // We set the datarray ID to -1 because in preview mode the dataray
 596                 // doesn't have an ID.
 597                 $datarray['id'] = -1;
 598                 $datarray['uri-id'] = -1;
 599                 $datarray['author-network'] = Protocol::DFRN;
 600                 $datarray['author-updated'] = '';
 601                 $datarray['author-gsid'] = 0;
 602                 $datarray['author-uri-id'] = ItemURI::getIdByURI($datarray['author-link']);
 603                 $datarray['owner-updated'] = '';
 604                 $datarray['has-media'] = false;
 605                 $datarray['quote-uri-id'] = Item::getQuoteUriId($datarray['body'], $datarray['uid']);
 606                 $datarray['body'] = BBCode::removeSharedData($datarray['body']);
 607
 608                 $o = DI::conversation()->create([array_merge($contact_record, $datarray)], 'search', false, true);
 609
 610                 System::jsonExit(['preview' => $o]);
 611         }
 612
 613         Hook::callAll('post_local',$datarray);
 614
 615         if (!empty($_REQUEST['scheduled_at'])) {
 616                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimeZone());
 617                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 618                         unset($datarray['created']);
 619                         unset($datarray['edited']);
 620                         unset($datarray['commented']);
 621                         unset($datarray['received']);
 622                         unset($datarray['changed']);
 623                         unset($datarray['edit']);
 624                         unset($datarray['self']);
 625                         unset($datarray['api_source']);
 626
 627                         Post\Delayed::add($datarray['uri'], $datarray, Worker::PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 628                         item_post_return(DI::baseUrl(), $return_path);
 629                 }
 630         }
 631
 632         if (!empty($datarray['cancel'])) {
 633                 Logger::info('mod_item: post cancelled by addon.');
 634                 if ($return_path) {
 635                         DI::baseUrl()->redirect($return_path);
 636                 }
 637
 638                 $json = ['cancel' => 1];
 639                 if (!empty($_REQUEST['jsreload'])) {
 640                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 641                 }
 642
 643                 System::jsonExit($json);
 644         }
 645
 646         $datarray['uri-id'] = ItemURI::getIdByURI($datarray['uri']);
 647
 648         $quote_uri_id = Item::getQuoteUriId($datarray['body'], $datarray['uid']);
 649         if (!empty($quote_uri_id)) {
 650                 $datarray['quote-uri-id'] = $quote_uri_id;
 651                 $datarray['body']         = BBCode::removeSharedData($datarray['body']);
 652         }
 653
 654         if ($orig_post) {
 655                 $fields = [
 656                         'title'   => $datarray['title'],
 657                         'body'    => $datarray['body'],
 658                         'attach'  => $datarray['attach'],
 659                         'file'    => $datarray['file'],
 660                         'edited'  => DateTimeFormat::utcNow(),
 661                         'changed' => DateTimeFormat::utcNow()
 662                 ];
 663
 664                 Item::update($fields, ['id' => $post_id]);
 665                 Item::updateDisplayCache($datarray['uri-id']);
 666
 667                 if ($return_path) {
 668                         DI::baseUrl()->redirect($return_path);
 669                 }
 670
 671                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 672         }
 673
 674         unset($datarray['edit']);
 675         unset($datarray['self']);
 676         unset($datarray['api_source']);
 677
 678         $post_id = Item::insert($datarray);
 679
 680         if (!$post_id) {
 681                 DI::sysmsg()->addNotice(DI::l10n()->t('Item wasn\'t stored.'));
 682                 if ($return_path) {
 683                         DI::baseUrl()->redirect($return_path);
 684                 }
 685
 686                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 687         }
 688
 689         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 690
 691         if (!DBA::isResult($datarray)) {
 692                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 693                 if ($return_path) {
 694                         DI::baseUrl()->redirect($return_path);
 695                 }
 696
 697                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 698         }
 699
 700         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 701
 702         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == Item::GRAVITY_COMMENT)) {
 703                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 704         }
 705
 706         // These notifications are sent if someone else is commenting other your wall
 707         if ($contact_record != $author) {
 708                 if ($toplevel_item_id) {
 709                         DI::notify()->createFromArray([
 710                                 'type'  => Notification\Type::COMMENT,
 711                                 'otype' => Notification\ObjectType::ITEM,
 712                                 'verb'  => Activity::POST,
 713                                 'uid'   => $profile_uid,
 714                                 'cid'   => $datarray['author-id'],
 715                                 'item'  => $datarray,
 716                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 717                         ]);
 718                 } elseif (empty($forum_contact)) {
 719                         DI::notify()->createFromArray([
 720                                 'type'  => Notification\Type::WALL,
 721                                 'otype' => Notification\ObjectType::ITEM,
 722                                 'verb'  => Activity::POST,
 723                                 'uid'   => $profile_uid,
 724                                 'cid'   => $datarray['author-id'],
 725                                 'item'  => $datarray,
 726                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 727                         ]);
 728                 }
 729         }
 730
 731         Hook::callAll('post_local_end', $datarray);
 732
 733         if (strlen($emailcc) && $profile_uid == DI::userSession()->getLocalUserId()) {
 734                 $recipients = explode(',', $emailcc);
 735                 if (count($recipients)) {
 736                         foreach ($recipients as $recipient) {
 737                                 $address = trim($recipient);
 738                                 if (!strlen($address)) {
 739                                         continue;
 740                                 }
 741                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 742                                         $datarray, $address, $author['thumb'] ?? ''));
 743                         }
 744                 }
 745         }
 746
 747         Logger::debug('post_complete');
 748
 749         item_post_return(DI::baseUrl(), $return_path);
 750         // NOTREACHED
 751 }
 752
 753 function item_post_return($baseurl, $return_path)
 754 {
 755         if ($return_path) {
 756                 DI::baseUrl()->redirect($return_path);
 757         }
 758
 759         $json = ['success' => 1];
 760         if (!empty($_REQUEST['jsreload'])) {
 761                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 762         }
 763
 764         Logger::debug('post_json', ['json' => $json]);
 765
 766         System::jsonExit($json);
 767 }
 768
 769 function item_content(App $a)
 770 {
 771         if (!DI::userSession()->isAuthenticated()) {
 772                 throw new HTTPException\UnauthorizedException();
 773         }
 774
 775         $args = DI::args();
 776
 777         if (!$args->has(3)) {
 778                 throw new HTTPException\BadRequestException();
 779         }
 780
 781         $o = '';
 782         switch ($args->get(1)) {
 783                 case 'drop':
 784                         if (DI::mode()->isAjax()) {
 785                                 Item::deleteForUser(['id' => $args->get(2)], DI::userSession()->getLocalUserId());
 786                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 787                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 788                         } else {
 789                                 if (!empty($args->get(3))) {
 790                                         $o = drop_item($args->get(2), $args->get(3));
 791                                 } else {
 792                                         $o = drop_item($args->get(2));
 793                                 }
 794                         }
 795                         break;
 796
 797                 case 'block':
 798                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 799                         if (empty($item['author-id'])) {
 800                                 throw new HTTPException\NotFoundException('Item not found');
 801                         }
 802
 803                         Contact\User::setBlocked($item['author-id'], DI::userSession()->getLocalUserId(), true);
 804
 805                         if (DI::mode()->isAjax()) {
 806                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 807                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 808                         } else {
 809                                 item_redirect_after_action($item, $args->get(3));
 810                         }
 811                         break;
 812         }
 813
 814         return $o;
 815 }
 816
 817 /**
 818  * @param int    $id
 819  * @param string $return
 820  * @return string
 821  * @throws HTTPException\InternalServerErrorException
 822  */
 823 function drop_item(int $id, string $return = ''): string
 824 {
 825         // Locate item to be deleted
 826         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'], ['id' => $id]);
 827
 828         if (!DBA::isResult($item)) {
 829                 DI::sysmsg()->addNotice(DI::l10n()->t('Item not found.'));
 830                 DI::baseUrl()->redirect('network');
 831                 //NOTREACHED
 832         }
 833
 834         if ($item['deleted']) {
 835                 return '';
 836         }
 837
 838         $contact_id = 0;
 839
 840         // check if logged in user is either the author or owner of this item
 841         if (DI::userSession()->getRemoteContactID($item['uid']) == $item['contact-id']) {
 842                 $contact_id = $item['contact-id'];
 843         }
 844
 845         if ((DI::userSession()->getLocalUserId() == $item['uid']) || $contact_id) {
 846                 // delete the item
 847                 Item::deleteForUser(['id' => $item['id']], DI::userSession()->getLocalUserId());
 848
 849                 item_redirect_after_action($item, $return);
 850                 //NOTREACHED
 851         } else {
 852                 Logger::warning('Permission denied.', ['local' => DI::userSession()->getLocalUserId(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 853                 DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
 854                 DI::baseUrl()->redirect('display/' . $item['guid']);
 855                 //NOTREACHED
 856         }
 857
 858         return '';
 859 }
 860
 861 function item_redirect_after_action(array $item, string $returnUrlHex)
 862 {
 863         $return_url = hex2bin($returnUrlHex);
 864
 865         // removes update_* from return_url to ignore Ajax refresh
 866         $return_url = str_replace('update_', '', $return_url);
 867
 868         // Check if delete a comment
 869         if ($item['gravity'] == Item::GRAVITY_COMMENT) {
 870                 if (!empty($item['parent'])) {
 871                         $parentitem = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid'], ['id' => $item['parent']]);
 872                 }
 873
 874                 // Return to parent guid
 875                 if (!empty($parentitem)) {
 876                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 877                         //NOTREACHED
 878                 } // In case something goes wrong
 879                 else {
 880                         DI::baseUrl()->redirect('network');
 881                         //NOTREACHED
 882                 }
 883         } else {
 884                 // if unknown location or deleting top level post called from display
 885                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 886                         DI::baseUrl()->redirect('network');
 887                         //NOTREACHED
 888                 } else {
 889                         DI::baseUrl()->redirect($return_url);
 890                         //NOTREACHED
 891                 }
 892         }
 893 }