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\Session;
  38 use Friendica\Core\System;
  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 (!Session::isAuthenticated()) {
  61                 throw new HTTPException\ForbiddenException();
  62         }
  63
  64         $uid = local_user();
  65
  66         if (!empty($_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         $api_source = $_REQUEST['api_source'] ?? false;
  81
  82         $return_path = $_REQUEST['return'] ?? '';
  83         $preview = intval($_REQUEST['preview'] ?? 0);
  84
  85         /*
  86          * Check for doubly-submitted posts, and reject duplicates
  87          * Note that we have to ignore previews, otherwise nothing will post
  88          * after it's been previewed
  89          */
  90         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  91                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  92                         Logger::warning('duplicate post');
  93                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  94                 } else {
  95                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  96                 }
  97         }
  98
  99         // Is this a reply to something?
 100         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
 101         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 102
 103         $parent_item = null;
 104         $toplevel_item = null;
 105         $toplevel_item_id = 0;
 106         $toplevel_user_id = null;
 107
 108         $objecttype = null;
 109         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 110         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 111
 112         if ($parent_item_id || $thr_parent_uri) {
 113                 if ($parent_item_id) {
 114                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item_id]);
 115                 } elseif ($thr_parent_uri) {
 116                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 117                 }
 118
 119                 // if this isn't the top-level parent of the conversation, find it
 120                 if (DBA::isResult($parent_item)) {
 121                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 122                         $thr_parent_uri = $parent_item['uri'];
 123                         $toplevel_item = $parent_item;
 124
 125                         if ($parent_item['gravity'] != GRAVITY_PARENT) {
 126                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 127                         }
 128                 }
 129
 130                 if (!DBA::isResult($toplevel_item)) {
 131                         notice(DI::l10n()->t('Unable to locate original post.'));
 132                         if ($return_path) {
 133                                 DI::baseUrl()->redirect($return_path);
 134                         }
 135                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 136                 }
 137
 138                 // When commenting on a public post then store the post for the current user
 139                 // This enables interaction like starring and saving into folders
 140                 if ($toplevel_item['uid'] == 0) {
 141                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user(), ['post-reason' => Item::PR_ACTIVITY]);
 142                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 143                         if ($stored) {
 144                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $stored]);
 145                         }
 146                 }
 147
 148                 $toplevel_item_id = $toplevel_item['id'];
 149                 $toplevel_user_id = $toplevel_item['uid'];
 150
 151                 $objecttype = Activity\ObjectType::COMMENT;
 152         }
 153
 154         if ($toplevel_item_id) {
 155                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 156         }
 157
 158         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 159         $app         = strip_tags($_REQUEST['source'] ?? '');
 160         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 161         $object      = $_REQUEST['object'] ?? '';
 162
 163         // Don't use "defaults" here. It would turn 0 to 1
 164         if (!isset($_REQUEST['wall'])) {
 165                 $wall = 1;
 166         } else {
 167                 $wall = $_REQUEST['wall'];
 168         }
 169
 170         // Ensure that the user id in a thread always stay the same
 171         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [local_user(), 0])) {
 172                 $profile_uid = $toplevel_user_id;
 173         }
 174
 175         // Allow commenting if it is an answer to a public post
 176         $allow_comment = local_user() && $toplevel_item_id && in_array($toplevel_item['private'], [Item::PUBLIC, Item::UNLISTED]) && in_array($toplevel_item['network'], Protocol::FEDERATED);
 177
 178         // Now check that valid personal details have been provided
 179         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 180                 Logger::warning('Permission denied.', ['local' => local_user(), 'profile_uid' => $profile_uid, 'toplevel_item_id' => $toplevel_item_id, 'network' => $toplevel_item['network']]);
 181                 notice(DI::l10n()->t('Permission denied.'));
 182                 if ($return_path) {
 183                         DI::baseUrl()->redirect($return_path);
 184                 }
 185
 186                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 187         }
 188
 189         // Init post instance
 190         $orig_post = null;
 191
 192         // is this an edited post?
 193         if ($post_id > 0) {
 194                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 195         }
 196
 197         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 198         if (!DBA::isResult($user) && !$toplevel_item_id) {
 199                 return 0;
 200         }
 201
 202         $categories = '';
 203         $postopts = '';
 204         $emailcc = '';
 205         $body = $_REQUEST['body'] ?? '';
 206         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 207
 208         // If we have a speparate attachment, we need to add it to the body.
 209         if (!empty($has_attachment)) {
 210                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 211                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 212                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 213
 214                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 215                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 216
 217                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 218                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 219
 220                 // Fetch the basic attachment data
 221                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 222                 unset($attachment['keywords']);
 223
 224                 // Overwrite the basic data with possible changes from the frontend
 225                 $attachment['type'] = $attachment_type;
 226                 $attachment['title'] = $attachment_title;
 227                 $attachment['text'] = $attachment_text;
 228                 $attachment['url'] = $attachment_url;
 229
 230                 if (!empty($attachment_img_src)) {
 231                         $attachment['images'] = [
 232                                 0 => [
 233                                         'src'    => $attachment_img_src,
 234                                         'width'  => $attachment_img_width,
 235                                         'height' => $attachment_img_height
 236                                 ]
 237                         ];
 238                 } else {
 239                         unset($attachment['images']);
 240                 }
 241
 242                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 243                 $body .= $att_bbcode;
 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) && !$private;
 324
 325                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 326                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 327                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 328                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 329                         }
 330                 }
 331
 332                 if (!strlen($body)) {
 333                         if ($preview) {
 334                                 System::jsonExit(['preview' => '']);
 335                         }
 336
 337                         notice(DI::l10n()->t('Empty post discarded.'));
 338                         if ($return_path) {
 339                                 DI::baseUrl()->redirect($return_path);
 340                         }
 341
 342                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 343                 }
 344         }
 345
 346         if (!empty($categories)) {
 347                 // get the "fileas" tags for this post
 348                 $filedas = FileTag::fileToArray($categories);
 349         }
 350
 351         $list_array = explode(',', trim($_REQUEST['category'] ?? ''));
 352         $categories = FileTag::arrayToFile($list_array, 'category');
 353
 354         if (!empty($filedas) && is_array($filedas)) {
 355                 // append the fileas stuff to the new categories list
 356                 $categories .= FileTag::arrayToFile($filedas);
 357         }
 358
 359         // get contact info for poster
 360
 361         $author = null;
 362         $self   = false;
 363         $contact_id = 0;
 364
 365         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 366                 $self = true;
 367                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 368         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 369                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 370         }
 371
 372         if (DBA::isResult($author)) {
 373                 $contact_id = $author['id'];
 374         }
 375
 376         // get contact info for owner
 377         if ($profile_uid == local_user() || $allow_comment) {
 378                 $contact_record = $author ?: [];
 379         } else {
 380                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 381         }
 382
 383         // Personal notes must never be altered to a forum post.
 384         if ($posttype != Item::PT_PERSONAL_NOTE) {
 385                 // Look for any tags and linkify them
 386                 $item = [
 387                         'uid'       => local_user() ? local_user() : $profile_uid,
 388                         'gravity'   => $toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT,
 389                         'network'   => $network,
 390                         'body'      => $body,
 391                         'postopts'  => $postopts,
 392                         'private'   => $private,
 393                         'allow_cid' => $str_contact_allow,
 394                         'allow_gid' => $str_group_allow,
 395                         'deny_cid'  => $str_contact_deny,
 396                         'deny_gid'  => $str_group_deny,
 397                 ];
 398
 399                 $item = DI::contentItem()->expandTags($item);
 400
 401                 $body              = $item['body'];
 402                 $inform            = $item['inform'];
 403                 $postopts          = $item['postopts'];
 404                 $private           = $item['private'];
 405                 $str_contact_allow = $item['allow_cid'];
 406                 $str_group_allow   = $item['allow_gid'];
 407                 $str_contact_deny  = $item['deny_cid'];
 408                 $str_group_deny    = $item['deny_gid'];
 409         } else {
 410                 $inform   = '';
 411         }
 412
 413         /*
 414          * When a photo was uploaded into the message using the (profile wall) ajax
 415          * uploader, The permissions are initially set to disallow anybody but the
 416          * owner from seeing it. This is because the permissions may not yet have been
 417          * set for the post. If it's private, the photo permissions should be set
 418          * appropriately. But we didn't know the final permissions on the post until
 419          * now. So now we'll look for links of uploaded messages that are in the
 420          * post and set them to the same permissions as the post itself.
 421          */
 422
 423         $match = null;
 424
 425         if (!$preview && Photo::setPermissionFromBody($body, $uid, $contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 426                 $objecttype = Activity\ObjectType::IMAGE;
 427         }
 428
 429         /*
 430          * Next link in any attachment references we find in the post.
 431          */
 432         $match = [];
 433
 434         /// @todo these lines should be moved to Model/Attach (Once it exists)
 435         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 436                 $attaches = $match[1];
 437                 if (count($attaches)) {
 438                         foreach ($attaches as $attach) {
 439                                 // Ensure to only modify attachments that you own
 440                                 $srch = '<' . intval($contact_id) . '>';
 441
 442                                 $condition = [
 443                                         'allow_cid' => $srch,
 444                                         'allow_gid' => '',
 445                                         'deny_cid' => '',
 446                                         'deny_gid' => '',
 447                                         'id' => $attach,
 448                                 ];
 449                                 if (!Attach::exists($condition)) {
 450                                         continue;
 451                                 }
 452
 453                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 454                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 455                                 $condition = ['id' => $attach];
 456                                 Attach::update($fields, $condition);
 457                         }
 458                 }
 459         }
 460
 461         // embedded bookmark or attachment in post? set bookmark flag
 462
 463         $data = BBCode::getAttachmentData($body);
 464         $match = [];
 465         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 466                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 467                 $posttype = Item::PT_PAGE;
 468                 $objecttype =  Activity\ObjectType::BOOKMARK;
 469         }
 470
 471         $body = DI::bbCodeVideo()->transform($body);
 472
 473         $body = BBCode::scaleExternalImages($body);
 474
 475         // Setting the object type if not defined before
 476         if (!$objecttype) {
 477                 $objecttype = Activity\ObjectType::NOTE; // Default value
 478                 $objectdata = BBCode::getAttachedData($body);
 479
 480                 if ($objectdata["type"] == "link") {
 481                         $objecttype = Activity\ObjectType::BOOKMARK;
 482                 } elseif ($objectdata["type"] == "video") {
 483                         $objecttype = Activity\ObjectType::VIDEO;
 484                 } elseif ($objectdata["type"] == "photo") {
 485                         $objecttype = Activity\ObjectType::IMAGE;
 486                 }
 487
 488         }
 489
 490         $attachments = '';
 491         $match = [];
 492
 493         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 494                 foreach ($match[2] as $mtch) {
 495                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 496                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 497                         if ($attachment !== false) {
 498                                 if (strlen($attachments)) {
 499                                         $attachments .= ',';
 500                                 }
 501                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 502                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 503                         }
 504                         $body = str_replace($match[1],'',$body);
 505                 }
 506         }
 507
 508         if (!strlen($verb)) {
 509                 $verb = Activity::POST;
 510         }
 511
 512         if ($network == "") {
 513                 $network = Protocol::DFRN;
 514         }
 515
 516         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 517
 518         // even if the post arrived via API we are considering that it
 519         // originated on this site by default for determining relayability.
 520
 521         // Don't use "defaults" here. It would turn 0 to 1
 522         if (!isset($_REQUEST['origin'])) {
 523                 $origin = 1;
 524         } else {
 525                 $origin = $_REQUEST['origin'];
 526         }
 527
 528         $uri = Item::newURI($guid);
 529
 530         // Fallback so that we alway have a parent uri
 531         if (!$thr_parent_uri || !$toplevel_item_id) {
 532                 $thr_parent_uri = $uri;
 533         }
 534
 535         $datarray = [];
 536         $datarray['uid']           = $profile_uid;
 537         $datarray['wall']          = $wall;
 538         $datarray['gravity']       = $gravity;
 539         $datarray['network']       = $network;
 540         $datarray['contact-id']    = $contact_id;
 541         $datarray['owner-name']    = $contact_record['name'] ?? '';
 542         $datarray['owner-link']    = $contact_record['url'] ?? '';
 543         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 544         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 545         $datarray['author-name']   = $author['name'];
 546         $datarray['author-link']   = $author['url'];
 547         $datarray['author-avatar'] = $author['thumb'];
 548         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 549         $datarray['created']       = empty($_REQUEST['created_at']) ? DateTimeFormat::utcNow() : $_REQUEST['created_at'];
 550         $datarray['edited']        = $datarray['created'];
 551         $datarray['commented']     = $datarray['created'];
 552         $datarray['changed']       = $datarray['created'];
 553         $datarray['received']      = DateTimeFormat::utcNow();
 554         $datarray['extid']         = $extid;
 555         $datarray['guid']          = $guid;
 556         $datarray['uri']           = $uri;
 557         $datarray['title']         = $title;
 558         $datarray['body']          = $body;
 559         $datarray['app']           = $app;
 560         $datarray['location']      = $location;
 561         $datarray['coord']         = $coord;
 562         $datarray['file']          = $categories;
 563         $datarray['inform']        = $inform;
 564         $datarray['verb']          = $verb;
 565         $datarray['post-type']     = $posttype;
 566         $datarray['object-type']   = $objecttype;
 567         $datarray['allow_cid']     = $str_contact_allow;
 568         $datarray['allow_gid']     = $str_group_allow;
 569         $datarray['deny_cid']      = $str_contact_deny;
 570         $datarray['deny_gid']      = $str_group_deny;
 571         $datarray['private']       = $private;
 572         $datarray['pubmail']       = $pubmail_enabled;
 573         $datarray['attach']        = $attachments;
 574
 575         $datarray['thr-parent']    = $thr_parent_uri;
 576
 577         $datarray['postopts']      = $postopts;
 578         $datarray['origin']        = $origin;
 579         $datarray['object']        = $object;
 580
 581         $datarray['attachments']   = $_REQUEST['attachments'] ?? [];
 582
 583         /*
 584          * These fields are for the convenience of addons...
 585          * 'self' if true indicates the owner is posting on their own wall
 586          * If parent is 0 it is a top-level post.
 587          */
 588         $datarray['parent']        = $toplevel_item_id;
 589         $datarray['self']          = $self;
 590
 591         // This triggers posts via API and the mirror functions
 592         $datarray['api_source'] = $api_source;
 593
 594         // This field is for storing the raw conversation data
 595         $datarray['protocol'] = Conversation::PARCEL_DIRECT;
 596         $datarray['direction'] = Conversation::PUSH;
 597
 598         if ($orig_post) {
 599                 $datarray['edit'] = true;
 600         } else {
 601                 // If this was a share, add missing data here
 602                 $datarray = Item::addShareDataFromOriginal($datarray);
 603
 604                 $datarray['edit'] = false;
 605         }
 606
 607         // Check for hashtags in the body and repair or add hashtag links
 608         if ($preview || $orig_post) {
 609                 $datarray['body'] = Item::setHashtags($datarray['body']);
 610         }
 611
 612         // preview mode - prepare the body for display and send it via json
 613         if ($preview) {
 614                 // We set the datarray ID to -1 because in preview mode the dataray
 615                 // doesn't have an ID.
 616                 $datarray["id"] = -1;
 617                 $datarray["uri-id"] = -1;
 618                 $datarray["author-network"] = Protocol::DFRN;
 619                 $datarray["author-updated"] = '';
 620                 $datarray["author-gsid"] = 0;
 621                 $datarray["author-uri-id"] = ItemURI::getIdByURI($datarray["author-link"]);
 622                 $datarray["owner-updated"] = '';
 623                 $datarray["has-media"] = false;
 624                 $datarray['body'] = Item::improveSharedDataInBody($datarray);
 625
 626                 $o = DI::conversation()->create([array_merge($contact_record, $datarray)], 'search', false, true);
 627
 628                 System::jsonExit(['preview' => $o]);
 629         }
 630
 631         Hook::callAll('post_local',$datarray);
 632
 633         if (!empty($_REQUEST['scheduled_at'])) {
 634                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimeZone());
 635                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 636                         unset($datarray['created']);
 637                         unset($datarray['edited']);
 638                         unset($datarray['commented']);
 639                         unset($datarray['received']);
 640                         unset($datarray['changed']);
 641                         unset($datarray['edit']);
 642                         unset($datarray['self']);
 643                         unset($datarray['api_source']);
 644
 645                         Post\Delayed::add($datarray['uri'], $datarray, PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 646                         item_post_return(DI::baseUrl(), $api_source, $return_path);
 647                 }
 648         }
 649
 650         if (!empty($datarray['cancel'])) {
 651                 Logger::info('mod_item: post cancelled by addon.');
 652                 if ($return_path) {
 653                         DI::baseUrl()->redirect($return_path);
 654                 }
 655
 656                 $json = ['cancel' => 1];
 657                 if (!empty($_REQUEST['jsreload'])) {
 658                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 659                 }
 660
 661                 System::jsonExit($json);
 662         }
 663
 664         $datarray['uri-id'] = ItemURI::getIdByURI($datarray['uri']);
 665         $datarray['body']   = Item::improveSharedDataInBody($datarray);
 666
 667         if ($orig_post) {
 668                 $fields = [
 669                         'title' => $datarray['title'],
 670                         'body' => $datarray['body'],
 671                         'attach' => $datarray['attach'],
 672                         'file' => $datarray['file'],
 673                         'edited' => DateTimeFormat::utcNow(),
 674                         'changed' => DateTimeFormat::utcNow()
 675                 ];
 676
 677                 Item::update($fields, ['id' => $post_id]);
 678                 Item::updateDisplayCache($datarray['uri-id']);
 679
 680                 if ($return_path) {
 681                         DI::baseUrl()->redirect($return_path);
 682                 }
 683
 684                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 685         }
 686
 687         unset($datarray['edit']);
 688         unset($datarray['self']);
 689         unset($datarray['api_source']);
 690
 691         $post_id = Item::insert($datarray);
 692
 693         if (!$post_id) {
 694                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 695                 if ($return_path) {
 696                         DI::baseUrl()->redirect($return_path);
 697                 }
 698
 699                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 700         }
 701
 702         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 703
 704         if (!DBA::isResult($datarray)) {
 705                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 706                 if ($return_path) {
 707                         DI::baseUrl()->redirect($return_path);
 708                 }
 709
 710                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 711         }
 712
 713         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 714
 715         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 716                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 717         }
 718
 719         // These notifications are sent if someone else is commenting other your wall
 720         if ($contact_record != $author) {
 721                 if ($toplevel_item_id) {
 722                         DI::notify()->createFromArray([
 723                                 'type'  => Notification\Type::COMMENT,
 724                                 'otype' => Notification\ObjectType::ITEM,
 725                                 'verb'  => Activity::POST,
 726                                 'uid'   => $profile_uid,
 727                                 'cid'   => $datarray['author-id'],
 728                                 'item'  => $datarray,
 729                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 730                         ]);
 731                 } elseif (empty($forum_contact)) {
 732                         DI::notify()->createFromArray([
 733                                 'type'  => Notification\Type::WALL,
 734                                 'otype' => Notification\ObjectType::ITEM,
 735                                 'verb'  => Activity::POST,
 736                                 'uid'   => $profile_uid,
 737                                 'cid'   => $datarray['author-id'],
 738                                 'item'  => $datarray,
 739                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 740                         ]);
 741                 }
 742         }
 743
 744         Hook::callAll('post_local_end', $datarray);
 745
 746         if (strlen($emailcc) && $profile_uid == local_user()) {
 747                 $recipients = explode(',', $emailcc);
 748                 if (count($recipients)) {
 749                         foreach ($recipients as $recipient) {
 750                                 $address = trim($recipient);
 751                                 if (!strlen($address)) {
 752                                         continue;
 753                                 }
 754                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 755                                         $datarray, $address, $author['thumb'] ?? ''));
 756                         }
 757                 }
 758         }
 759
 760         Logger::debug('post_complete');
 761
 762         if ($api_source) {
 763                 return $post_id;
 764         }
 765
 766         item_post_return(DI::baseUrl(), $api_source, $return_path);
 767         // NOTREACHED
 768 }
 769
 770 function item_post_return($baseurl, $api_source, $return_path)
 771 {
 772         if ($api_source) {
 773                 return;
 774         }
 775
 776         if ($return_path) {
 777                 DI::baseUrl()->redirect($return_path);
 778         }
 779
 780         $json = ['success' => 1];
 781         if (!empty($_REQUEST['jsreload'])) {
 782                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 783         }
 784
 785         Logger::debug('post_json', ['json' => $json]);
 786
 787         System::jsonExit($json);
 788 }
 789
 790 function item_content(App $a)
 791 {
 792         if (!Session::isAuthenticated()) {
 793                 throw new HTTPException\UnauthorizedException();
 794         }
 795
 796         $args = DI::args();
 797
 798         if (!$args->has(3)) {
 799                 throw new HTTPException\BadRequestException();
 800         }
 801
 802         $o = '';
 803         switch ($args->get(1)) {
 804                 case 'drop':
 805                         if (DI::mode()->isAjax()) {
 806                                 Item::deleteForUser(['id' => $args->get(2)], local_user());
 807                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 808                                 System::jsonExit([intval($args->get(2)), local_user()]);
 809                         } else {
 810                                 if (!empty($args->get(3))) {
 811                                         $o = drop_item($args->get(2), $args->get(3));
 812                                 } else {
 813                                         $o = drop_item($args->get(2));
 814                                 }
 815                         }
 816                         break;
 817                 case 'block':
 818                         $item = Post::selectFirstForUser(local_user(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 819                         if (empty($item['author-id'])) {
 820                                 throw new HTTPException\NotFoundException('Item not found');
 821                         }
 822
 823                         Contact\User::setBlocked($item['author-id'], local_user(), true);
 824
 825                         if (DI::mode()->isAjax()) {
 826                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 827                                 System::jsonExit([intval($args->get(2)), local_user()]);
 828                         } else {
 829                                 item_redirect_after_action($item, $args->get(3));
 830                         }
 831                         break;
 832         }
 833
 834         return $o;
 835 }
 836
 837 /**
 838  * @param int    $id
 839  * @param string $return
 840  * @return string
 841  * @throws HTTPException\InternalServerErrorException
 842  */
 843 function drop_item(int $id, string $return = '')
 844 {
 845         // locate item to be deleted
 846         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 847         $item = Post::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 848
 849         if (!DBA::isResult($item)) {
 850                 notice(DI::l10n()->t('Item not found.'));
 851                 DI::baseUrl()->redirect('network');
 852         }
 853
 854         if ($item['deleted']) {
 855                 return '';
 856         }
 857
 858         $contact_id = 0;
 859
 860         // check if logged in user is either the author or owner of this item
 861         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 862                 $contact_id = $item['contact-id'];
 863         }
 864
 865         if ((local_user() == $item['uid']) || $contact_id) {
 866                 // delete the item
 867                 Item::deleteForUser(['id' => $item['id']], local_user());
 868
 869                 item_redirect_after_action($item, $return);
 870         } else {
 871                 Logger::warning('Permission denied.', ['local' => local_user(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 872                 notice(DI::l10n()->t('Permission denied.'));
 873                 DI::baseUrl()->redirect('display/' . $item['guid']);
 874                 //NOTREACHED
 875         }
 876
 877         return '';
 878 }
 879
 880 function item_redirect_after_action($item, $returnUrlHex)
 881 {
 882         $return_url = hex2bin($returnUrlHex);
 883
 884         // removes update_* from return_url to ignore Ajax refresh
 885         $return_url = str_replace("update_", "", $return_url);
 886
 887         // Check if delete a comment
 888         if ($item['gravity'] == GRAVITY_COMMENT) {
 889                 if (!empty($item['parent'])) {
 890                         $parentitem = Post::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 891                 }
 892
 893                 // Return to parent guid
 894                 if (!empty($parentitem)) {
 895                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 896                         //NOTREACHED
 897                 } // In case something goes wrong
 898                 else {
 899                         DI::baseUrl()->redirect('network');
 900                         //NOTREACHED
 901                 }
 902         } else {
 903                 // if unknown location or deleting top level post called from display
 904                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 905                         DI::baseUrl()->redirect('network');
 906                         //NOTREACHED
 907                 } else {
 908                         DI::baseUrl()->redirect($return_url);
 909                         //NOTREACHED
 910                 }
 911         }
 912 }