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\Core\Worker;
  40 use Friendica\Database\DBA;
  41 use Friendica\DI;
  42 use Friendica\Model\Attach;
  43 use Friendica\Model\Contact;
  44 use Friendica\Model\Conversation;
  45 use Friendica\Model\FileTag;
  46 use Friendica\Model\Group;
  47 use Friendica\Model\Item;
  48 use Friendica\Model\ItemURI;
  49 use Friendica\Model\Notification;
  50 use Friendica\Model\Photo;
  51 use Friendica\Model\Post;
  52 use Friendica\Model\Tag;
  53 use Friendica\Model\User;
  54 use Friendica\Network\HTTPException;
  55 use Friendica\Object\EMail\ItemCCEMail;
  56 use Friendica\Protocol\Activity;
  57 use Friendica\Security\Security;
  58 use Friendica\Util\DateTimeFormat;
  59 use Friendica\Util\ParseUrl;
  60 use Friendica\Worker\Delivery;
  61
  62 function item_post(App $a) {
  63         if (!Session::isAuthenticated()) {
  64                 throw new HTTPException\ForbiddenException();
  65         }
  66
  67         $uid = local_user();
  68
  69         if (!empty($_REQUEST['dropitems'])) {
  70                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  71                 foreach ($arr_drop as $item) {
  72                         Item::deleteForUser(['id' => $item], $uid);
  73                 }
  74
  75                 $json = ['success' => 1];
  76                 System::jsonExit($json);
  77         }
  78
  79         Hook::callAll('post_local_start', $_REQUEST);
  80
  81         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  82
  83         $api_source = $_REQUEST['api_source'] ?? false;
  84
  85         $return_path = $_REQUEST['return'] ?? '';
  86         $preview = intval($_REQUEST['preview'] ?? 0);
  87
  88         /*
  89          * Check for doubly-submitted posts, and reject duplicates
  90          * Note that we have to ignore previews, otherwise nothing will post
  91          * after it's been previewed
  92          */
  93         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  94                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  95                         Logger::info('item post: duplicate post');
  96                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  97                 } else {
  98                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  99                 }
 100         }
 101
 102         // Is this a reply to something?
 103         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
 104         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 105
 106         $parent_item = null;
 107         $toplevel_item = null;
 108         $toplevel_item_id = 0;
 109         $toplevel_user_id = null;
 110
 111         $objecttype = null;
 112         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 113         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 114
 115         if ($parent_item_id || $thr_parent_uri) {
 116                 if ($parent_item_id) {
 117                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item_id]);
 118                 } elseif ($thr_parent_uri) {
 119                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 120                 }
 121
 122                 // if this isn't the top-level parent of the conversation, find it
 123                 if (DBA::isResult($parent_item)) {
 124                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 125                         $thr_parent_uri = $parent_item['uri'];
 126                         $toplevel_item = $parent_item;
 127
 128                         if ($parent_item['gravity'] != GRAVITY_PARENT) {
 129                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 130                         }
 131                 }
 132
 133                 if (!DBA::isResult($toplevel_item)) {
 134                         notice(DI::l10n()->t('Unable to locate original post.'));
 135                         if ($return_path) {
 136                                 DI::baseUrl()->redirect($return_path);
 137                         }
 138                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 139                 }
 140
 141                 // When commenting on a public post then store the post for the current user
 142                 // This enables interaction like starring and saving into folders
 143                 if ($toplevel_item['uid'] == 0) {
 144                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user());
 145                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 146                         if ($stored) {
 147                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $stored]);
 148                         }
 149                 }
 150
 151                 $toplevel_item_id = $toplevel_item['id'];
 152                 $toplevel_user_id = $toplevel_item['uid'];
 153
 154                 $objecttype = Activity\ObjectType::COMMENT;
 155         }
 156
 157         if ($toplevel_item_id) {
 158                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 159         }
 160
 161         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 162         $app         = strip_tags($_REQUEST['source'] ?? '');
 163         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 164         $object      = $_REQUEST['object'] ?? '';
 165
 166         // Don't use "defaults" here. It would turn 0 to 1
 167         if (!isset($_REQUEST['wall'])) {
 168                 $wall = 1;
 169         } else {
 170                 $wall = $_REQUEST['wall'];
 171         }
 172
 173         // Ensure that the user id in a thread always stay the same
 174         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [local_user(), 0])) {
 175                 $profile_uid = $toplevel_user_id;
 176         }
 177
 178         // Allow commenting if it is an answer to a public post
 179         $allow_comment = local_user() && $toplevel_item_id && in_array($toplevel_item['private'], [Item::PUBLIC, Item::UNLISTED]) && in_array($toplevel_item['network'], Protocol::FEDERATED);
 180
 181         // Now check that valid personal details have been provided
 182         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 183                 Logger::notice('Permission denied.', ['local' => local_user(), 'profile_uid' => $profile_uid, 'toplevel_item_id' => $toplevel_item_id, 'network' => $toplevel_item['network']]);
 184                 notice(DI::l10n()->t('Permission denied.'));
 185                 if ($return_path) {
 186                         DI::baseUrl()->redirect($return_path);
 187                 }
 188
 189                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 190         }
 191
 192         // Init post instance
 193         $orig_post = null;
 194
 195         // is this an edited post?
 196         if ($post_id > 0) {
 197                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 198         }
 199
 200         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 201         if (!DBA::isResult($user) && !$toplevel_item_id) {
 202                 return 0;
 203         }
 204
 205         $categories = '';
 206         $postopts = '';
 207         $emailcc = '';
 208         $body = $_REQUEST['body'] ?? '';
 209         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 210
 211         // If we have a speparate attachment, we need to add it to the body.
 212         if (!empty($has_attachment)) {
 213                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 214                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 215                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 216
 217                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 218                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 219
 220                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 221                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 222
 223                 // Fetch the basic attachment data
 224                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 225                 unset($attachment['keywords']);
 226
 227                 // Overwrite the basic data with possible changes from the frontend
 228                 $attachment['type'] = $attachment_type;
 229                 $attachment['title'] = $attachment_title;
 230                 $attachment['text'] = $attachment_text;
 231                 $attachment['url'] = $attachment_url;
 232
 233                 if (!empty($attachment_img_src)) {
 234                         $attachment['images'] = [
 235                                 0 => [
 236                                         'src'    => $attachment_img_src,
 237                                         'width'  => $attachment_img_width,
 238                                         'height' => $attachment_img_height
 239                                 ]
 240                         ];
 241                 } else {
 242                         unset($attachment['images']);
 243                 }
 244
 245                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 246                 $body .= $att_bbcode;
 247         }
 248
 249         // Convert links with empty descriptions to links without an explicit description
 250         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 251
 252         if (!empty($orig_post)) {
 253                 $str_group_allow   = $orig_post['allow_gid'];
 254                 $str_contact_allow = $orig_post['allow_cid'];
 255                 $str_group_deny    = $orig_post['deny_gid'];
 256                 $str_contact_deny  = $orig_post['deny_cid'];
 257                 $location          = $orig_post['location'];
 258                 $coord             = $orig_post['coord'];
 259                 $verb              = $orig_post['verb'];
 260                 $objecttype        = $orig_post['object-type'];
 261                 $app               = $orig_post['app'];
 262                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 263                 $title             = trim($_REQUEST['title'] ?? '');
 264                 $body              = trim($body);
 265                 $private           = $orig_post['private'];
 266                 $pubmail_enabled   = $orig_post['pubmail'];
 267                 $network           = $orig_post['network'];
 268                 $guid              = $orig_post['guid'];
 269                 $extid             = $orig_post['extid'];
 270         } else {
 271                 $aclFormatter = DI::aclFormatter();
 272                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 273                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 274                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 275                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 276
 277                 $visibility = $_REQUEST['visibility'] ?? '';
 278                 if ($visibility === 'public') {
 279                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 280                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 281                 } else if ($visibility === 'custom') {
 282                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 283                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 284                         // See https://github.com/friendica/friendica/issues/9672
 285                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 286                 }
 287
 288                 $title             = trim($_REQUEST['title']    ?? '');
 289                 $location          = trim($_REQUEST['location'] ?? '');
 290                 $coord             = trim($_REQUEST['coord']    ?? '');
 291                 $verb              = trim($_REQUEST['verb']     ?? '');
 292                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 293                 $body              = trim($body);
 294                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 295                 $guid              = System::createUUID();
 296
 297                 $postopts = $_REQUEST['postopts'] ?? '';
 298
 299                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 300                         $private = Item::PRIVATE;
 301                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 302                         $private = Item::UNLISTED;
 303                 } else {
 304                         $private = Item::PUBLIC;
 305                 }
 306
 307                 // If this is a comment, set the permissions from the parent.
 308
 309                 if ($toplevel_item) {
 310                         // for non native networks use the network of the original post as network of the item
 311                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 312                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 313                                 && ($network == "")) {
 314                                 $network = $toplevel_item['network'];
 315                         }
 316
 317                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 318                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 319                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 320                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 321                         $private           = $toplevel_item['private'];
 322
 323                         $wall              = $toplevel_item['wall'];
 324                 }
 325
 326                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 327
 328                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 329                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 330                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 331                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 332                         }
 333                 }
 334
 335                 if (!strlen($body)) {
 336                         if ($preview) {
 337                                 System::jsonExit(['preview' => '']);
 338                         }
 339
 340                         notice(DI::l10n()->t('Empty post discarded.'));
 341                         if ($return_path) {
 342                                 DI::baseUrl()->redirect($return_path);
 343                         }
 344
 345                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 346                 }
 347         }
 348
 349         if (!empty($categories)) {
 350                 // get the "fileas" tags for this post
 351                 $filedas = FileTag::fileToArray($categories);
 352         }
 353
 354         $list_array = explode(',', trim($_REQUEST['category'] ?? ''));
 355         $categories = FileTag::arrayToFile($list_array, 'category');
 356
 357         if (!empty($filedas) && is_array($filedas)) {
 358                 // append the fileas stuff to the new categories list
 359                 $categories .= FileTag::arrayToFile($filedas);
 360         }
 361
 362         // get contact info for poster
 363
 364         $author = null;
 365         $self   = false;
 366         $contact_id = 0;
 367
 368         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 369                 $self = true;
 370                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 371         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 372                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 373         }
 374
 375         if (DBA::isResult($author)) {
 376                 $contact_id = $author['id'];
 377         }
 378
 379         // get contact info for owner
 380         if ($profile_uid == local_user() || $allow_comment) {
 381                 $contact_record = $author ?: [];
 382         } else {
 383                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 384         }
 385
 386         // Personal notes must never be altered to a forum post.
 387         if ($posttype != Item::PT_PERSONAL_NOTE) {
 388                 // Look for any tags and linkify them
 389                 $item = [
 390                         'uid'       => local_user() ? local_user() : $profile_uid,
 391                         'gravity'   => $toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT,
 392                         'network'   => $network,
 393                         'body'      => $body,
 394                         'postopts'  => $postopts,
 395                         'private'   => $private,
 396                         'allow_cid' => $str_contact_allow,
 397                         'allow_gid' => $str_group_allow,
 398                         'deny_cid'  => $str_contact_deny,
 399                         'deny_gid'  => $str_group_deny,
 400                 ];
 401
 402                 $item = DI::contentItem()->expandTags($item);
 403
 404                 $body              = $item['body'];
 405                 $inform            = $item['inform'];
 406                 $postopts          = $item['postopts'];
 407                 $private           = $item['private'];
 408                 $str_contact_allow = $item['allow_cid'];
 409                 $str_group_allow   = $item['allow_gid'];
 410                 $str_contact_deny  = $item['deny_cid'];
 411                 $str_group_deny    = $item['deny_gid'];
 412         } else {
 413                 $inform   = '';
 414         }
 415
 416         /*
 417          * When a photo was uploaded into the message using the (profile wall) ajax
 418          * uploader, The permissions are initially set to disallow anybody but the
 419          * owner from seeing it. This is because the permissions may not yet have been
 420          * set for the post. If it's private, the photo permissions should be set
 421          * appropriately. But we didn't know the final permissions on the post until
 422          * now. So now we'll look for links of uploaded messages that are in the
 423          * post and set them to the same permissions as the post itself.
 424          */
 425
 426         $match = null;
 427
 428         if (!$preview && Photo::setPermissionFromBody($body, $uid, $contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 429                 $objecttype = Activity\ObjectType::IMAGE;
 430         }
 431
 432         /*
 433          * Next link in any attachment references we find in the post.
 434          */
 435         $match = [];
 436
 437         /// @todo these lines should be moved to Model/Attach (Once it exists)
 438         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 439                 $attaches = $match[1];
 440                 if (count($attaches)) {
 441                         foreach ($attaches as $attach) {
 442                                 // Ensure to only modify attachments that you own
 443                                 $srch = '<' . intval($contact_id) . '>';
 444
 445                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 446                                                 'id' => $attach];
 447                                 if (!Attach::exists($condition)) {
 448                                         continue;
 449                                 }
 450
 451                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 452                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 453                                 $condition = ['id' => $attach];
 454                                 Attach::update($fields, $condition);
 455                         }
 456                 }
 457         }
 458
 459         // embedded bookmark or attachment in post? set bookmark flag
 460
 461         $data = BBCode::getAttachmentData($body);
 462         $match = [];
 463         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 464                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 465                 $posttype = Item::PT_PAGE;
 466                 $objecttype =  Activity\ObjectType::BOOKMARK;
 467         }
 468
 469         $body = DI::bbCodeVideo()->transform($body);
 470
 471         $body = BBCode::scaleExternalImages($body);
 472
 473         // Setting the object type if not defined before
 474         if (!$objecttype) {
 475                 $objecttype = Activity\ObjectType::NOTE; // Default value
 476                 $objectdata = BBCode::getAttachedData($body);
 477
 478                 if ($objectdata["type"] == "link") {
 479                         $objecttype = Activity\ObjectType::BOOKMARK;
 480                 } elseif ($objectdata["type"] == "video") {
 481                         $objecttype = Activity\ObjectType::VIDEO;
 482                 } elseif ($objectdata["type"] == "photo") {
 483                         $objecttype = Activity\ObjectType::IMAGE;
 484                 }
 485
 486         }
 487
 488         $attachments = '';
 489         $match = [];
 490
 491         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 492                 foreach ($match[2] as $mtch) {
 493                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 494                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 495                         if ($attachment !== false) {
 496                                 if (strlen($attachments)) {
 497                                         $attachments .= ',';
 498                                 }
 499                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 500                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 501                         }
 502                         $body = str_replace($match[1],'',$body);
 503                 }
 504         }
 505
 506         if (!strlen($verb)) {
 507                 $verb = Activity::POST;
 508         }
 509
 510         if ($network == "") {
 511                 $network = Protocol::DFRN;
 512         }
 513
 514         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 515
 516         // even if the post arrived via API we are considering that it
 517         // originated on this site by default for determining relayability.
 518
 519         // Don't use "defaults" here. It would turn 0 to 1
 520         if (!isset($_REQUEST['origin'])) {
 521                 $origin = 1;
 522         } else {
 523                 $origin = $_REQUEST['origin'];
 524         }
 525
 526         $uri = Item::newURI($api_source ? $profile_uid : $uid, $guid);
 527
 528         // Fallback so that we alway have a parent uri
 529         if (!$thr_parent_uri || !$toplevel_item_id) {
 530                 $thr_parent_uri = $uri;
 531         }
 532
 533         $datarray = [];
 534         $datarray['uid']           = $profile_uid;
 535         $datarray['wall']          = $wall;
 536         $datarray['gravity']       = $gravity;
 537         $datarray['network']       = $network;
 538         $datarray['contact-id']    = $contact_id;
 539         $datarray['owner-name']    = $contact_record['name'] ?? '';
 540         $datarray['owner-link']    = $contact_record['url'] ?? '';
 541         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 542         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 543         $datarray['author-name']   = $author['name'];
 544         $datarray['author-link']   = $author['url'];
 545         $datarray['author-avatar'] = $author['thumb'];
 546         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 547         $datarray['created']       = DateTimeFormat::utcNow();
 548         $datarray['edited']        = DateTimeFormat::utcNow();
 549         $datarray['commented']     = DateTimeFormat::utcNow();
 550         $datarray['received']      = DateTimeFormat::utcNow();
 551         $datarray['changed']       = DateTimeFormat::utcNow();
 552         $datarray['extid']         = $extid;
 553         $datarray['guid']          = $guid;
 554         $datarray['uri']           = $uri;
 555         $datarray['title']         = $title;
 556         $datarray['body']          = $body;
 557         $datarray['app']           = $app;
 558         $datarray['location']      = $location;
 559         $datarray['coord']         = $coord;
 560         $datarray['file']          = $categories;
 561         $datarray['inform']        = $inform;
 562         $datarray['verb']          = $verb;
 563         $datarray['post-type']     = $posttype;
 564         $datarray['object-type']   = $objecttype;
 565         $datarray['allow_cid']     = $str_contact_allow;
 566         $datarray['allow_gid']     = $str_group_allow;
 567         $datarray['deny_cid']      = $str_contact_deny;
 568         $datarray['deny_gid']      = $str_group_deny;
 569         $datarray['private']       = $private;
 570         $datarray['pubmail']       = $pubmail_enabled;
 571         $datarray['attach']        = $attachments;
 572
 573         $datarray['thr-parent']    = $thr_parent_uri;
 574
 575         $datarray['postopts']      = $postopts;
 576         $datarray['origin']        = $origin;
 577         $datarray['object']        = $object;
 578
 579         $datarray['attachments']   = $_REQUEST['attachments'] ?? [];
 580
 581         /*
 582          * These fields are for the convenience of addons...
 583          * 'self' if true indicates the owner is posting on their own wall
 584          * If parent is 0 it is a top-level post.
 585          */
 586         $datarray['parent']        = $toplevel_item_id;
 587         $datarray['self']          = $self;
 588
 589         // This triggers posts via API and the mirror functions
 590         $datarray['api_source'] = $api_source;
 591
 592         // This field is for storing the raw conversation data
 593         $datarray['protocol'] = Conversation::PARCEL_DIRECT;
 594         $datarray['direction'] = Conversation::PUSH;
 595
 596         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 597         if (DBA::isResult($conversation)) {
 598                 if ($conversation['conversation-uri'] != '') {
 599                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 600                 }
 601                 if ($conversation['conversation-href'] != '') {
 602                         $datarray['conversation-href'] = $conversation['conversation-href'];
 603                 }
 604         }
 605
 606         if ($orig_post) {
 607                 $datarray['edit'] = true;
 608         } else {
 609                 // If this was a share, add missing data here
 610                 $datarray = Item::addShareDataFromOriginal($datarray);
 611
 612                 $datarray['edit'] = false;
 613         }
 614
 615         // Check for hashtags in the body and repair or add hashtag links
 616         if ($preview || $orig_post) {
 617                 $datarray['body'] = Item::setHashtags($datarray['body']);
 618         }
 619
 620         // preview mode - prepare the body for display and send it via json
 621         if ($preview) {
 622                 // We set the datarray ID to -1 because in preview mode the dataray
 623                 // doesn't have an ID.
 624                 $datarray["id"] = -1;
 625                 $datarray["uri-id"] = -1;
 626                 $datarray["author-network"] = Protocol::DFRN;
 627
 628                 $o = DI::conversation()->create([array_merge($contact_record, $datarray)], 'search', false, true);
 629
 630                 System::jsonExit(['preview' => $o]);
 631         }
 632
 633         Hook::callAll('post_local',$datarray);
 634
 635         if (!empty($_REQUEST['scheduled_at'])) {
 636                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimeZone());
 637                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 638                         unset($datarray['created']);
 639                         unset($datarray['edited']);
 640                         unset($datarray['commented']);
 641                         unset($datarray['received']);
 642                         unset($datarray['changed']);
 643                         unset($datarray['edit']);
 644                         unset($datarray['self']);
 645                         unset($datarray['api_source']);
 646
 647                         Post\Delayed::add($datarray['uri'], $datarray, PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 648                         item_post_return(DI::baseUrl(), $api_source, $return_path);
 649                 }
 650         }
 651
 652         if (!empty($datarray['cancel'])) {
 653                 Logger::info('mod_item: post cancelled by addon.');
 654                 if ($return_path) {
 655                         DI::baseUrl()->redirect($return_path);
 656                 }
 657
 658                 $json = ['cancel' => 1];
 659                 if (!empty($_REQUEST['jsreload'])) {
 660                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 661                 }
 662
 663                 System::jsonExit($json);
 664         }
 665
 666         $datarray['uri-id'] = ItemURI::getIdByURI($datarray['uri']);
 667
 668         if ($orig_post) {
 669                 // Fill the cache field
 670                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 671                 Item::putInCache($datarray);
 672
 673                 $fields = [
 674                         'title' => $datarray['title'],
 675                         'body' => $datarray['body'],
 676                         'attach' => $datarray['attach'],
 677                         'file' => $datarray['file'],
 678                         'rendered-html' => $datarray['rendered-html'],
 679                         'rendered-hash' => $datarray['rendered-hash'],
 680                         'edited' => DateTimeFormat::utcNow(),
 681                         'changed' => DateTimeFormat::utcNow()];
 682
 683                 Item::update($fields, ['id' => $post_id]);
 684
 685                 if ($return_path) {
 686                         DI::baseUrl()->redirect($return_path);
 687                 }
 688
 689                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 690         }
 691
 692         unset($datarray['edit']);
 693         unset($datarray['self']);
 694         unset($datarray['api_source']);
 695
 696         $post_id = Item::insert($datarray);
 697
 698         if (!$post_id) {
 699                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 700                 if ($return_path) {
 701                         DI::baseUrl()->redirect($return_path);
 702                 }
 703
 704                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 705         }
 706
 707         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 708
 709         if (!DBA::isResult($datarray)) {
 710                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 711                 if ($return_path) {
 712                         DI::baseUrl()->redirect($return_path);
 713                 }
 714
 715                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 716         }
 717
 718         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 719
 720         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 721                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 722         }
 723
 724         // These notifications are sent if someone else is commenting other your wall
 725         if ($contact_record != $author) {
 726                 if ($toplevel_item_id) {
 727                         DI::notify()->createFromArray([
 728                                 'type'  => Notification\Type::COMMENT,
 729                                 'otype' => Notification\ObjectType::ITEM,
 730                                 'verb'  => Activity::POST,
 731                                 'uid'   => $profile_uid,
 732                                 'cid'   => $datarray['author-id'],
 733                                 'item'  => $datarray,
 734                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 735                         ]);
 736                 } elseif (empty($forum_contact)) {
 737                         DI::notify()->createFromArray([
 738                                 'type'  => Notification\Type::WALL,
 739                                 'otype' => Notification\ObjectType::ITEM,
 740                                 'verb'  => Activity::POST,
 741                                 'uid'   => $profile_uid,
 742                                 'cid'   => $datarray['author-id'],
 743                                 'item'  => $datarray,
 744                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 745                         ]);
 746                 }
 747         }
 748
 749         Hook::callAll('post_local_end', $datarray);
 750
 751         if (strlen($emailcc) && $profile_uid == local_user()) {
 752                 $recipients = explode(',', $emailcc);
 753                 if (count($recipients)) {
 754                         foreach ($recipients as $recipient) {
 755                                 $address = trim($recipient);
 756                                 if (!strlen($address)) {
 757                                         continue;
 758                                 }
 759                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 760                                         $datarray, $address, $author['thumb'] ?? ''));
 761                         }
 762                 }
 763         }
 764
 765         Logger::info('post_complete');
 766
 767         if ($api_source) {
 768                 return $post_id;
 769         }
 770
 771         item_post_return(DI::baseUrl(), $api_source, $return_path);
 772         // NOTREACHED
 773 }
 774
 775 function item_post_return($baseurl, $api_source, $return_path)
 776 {
 777         if ($api_source) {
 778                 return;
 779         }
 780
 781         if ($return_path) {
 782                 DI::baseUrl()->redirect($return_path);
 783         }
 784
 785         $json = ['success' => 1];
 786         if (!empty($_REQUEST['jsreload'])) {
 787                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 788         }
 789
 790         Logger::info('post_json', ['json' => $json]);
 791
 792         System::jsonExit($json);
 793 }
 794
 795 function item_content(App $a)
 796 {
 797         if (!Session::isAuthenticated()) {
 798                 throw new HTTPException\UnauthorizedException();
 799         }
 800
 801         $args = DI::args();
 802
 803         if (!$args->has(3)) {
 804                 throw new HTTPException\BadRequestException();
 805         }
 806
 807         $o = '';
 808         switch ($args->get(1)) {
 809                 case 'drop':
 810                         if (DI::mode()->isAjax()) {
 811                                 Item::deleteForUser(['id' => $args->get(2)], local_user());
 812                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 813                                 System::jsonExit([intval($args->get(2)), local_user()]);
 814                         } else {
 815                                 if (!empty($args->get(3))) {
 816                                         $o = drop_item($args->get(2), $args->get(3));
 817                                 } else {
 818                                         $o = drop_item($args->get(2));
 819                                 }
 820                         }
 821                         break;
 822                 case 'block':
 823                         $item = Post::selectFirstForUser(local_user(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 824                         if (empty($item['author-id'])) {
 825                                 throw new HTTPException\NotFoundException('Item not found');
 826                         }
 827
 828                         Contact\User::setBlocked($item['author-id'], local_user(), true);
 829
 830                         if (DI::mode()->isAjax()) {
 831                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 832                                 System::jsonExit([intval($args->get(2)), local_user()]);
 833                         } else {
 834                                 item_redirect_after_action($item, $args->get(3));
 835                         }
 836                         break;
 837         }
 838
 839         return $o;
 840 }
 841
 842 /**
 843  * @param int    $id
 844  * @param string $return
 845  * @return string
 846  * @throws HTTPException\InternalServerErrorException
 847  */
 848 function drop_item(int $id, string $return = '')
 849 {
 850         // locate item to be deleted
 851         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 852         $item = Post::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 853
 854         if (!DBA::isResult($item)) {
 855                 notice(DI::l10n()->t('Item not found.'));
 856                 DI::baseUrl()->redirect('network');
 857         }
 858
 859         if ($item['deleted']) {
 860                 return '';
 861         }
 862
 863         $contact_id = 0;
 864
 865         // check if logged in user is either the author or owner of this item
 866         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 867                 $contact_id = $item['contact-id'];
 868         }
 869
 870         if ((local_user() == $item['uid']) || $contact_id) {
 871                 // delete the item
 872                 Item::deleteForUser(['id' => $item['id']], local_user());
 873
 874                 item_redirect_after_action($item, $return);
 875         } else {
 876                 Logger::notice('Permission denied.', ['local' => local_user(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 877                 notice(DI::l10n()->t('Permission denied.'));
 878                 DI::baseUrl()->redirect('display/' . $item['guid']);
 879                 //NOTREACHED
 880         }
 881
 882         return '';
 883 }
 884
 885 function item_redirect_after_action($item, $returnUrlHex)
 886 {
 887         $return_url = hex2bin($returnUrlHex);
 888
 889         // removes update_* from return_url to ignore Ajax refresh
 890         $return_url = str_replace("update_", "", $return_url);
 891
 892         // Check if delete a comment
 893         if ($item['gravity'] == GRAVITY_COMMENT) {
 894                 if (!empty($item['parent'])) {
 895                         $parentitem = Post::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 896                 }
 897
 898                 // Return to parent guid
 899                 if (!empty($parentitem)) {
 900                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 901                         //NOTREACHED
 902                 } // In case something goes wrong
 903                 else {
 904                         DI::baseUrl()->redirect('network');
 905                         //NOTREACHED
 906                 }
 907         } else {
 908                 // if unknown location or deleting top level post called from display
 909                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 910                         DI::baseUrl()->redirect('network');
 911                         //NOTREACHED
 912                 } else {
 913                         DI::baseUrl()->redirect($return_url);
 914                         //NOTREACHED
 915                 }
 916         }
 917 }