mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  * This is the POST destination for most all locally posted
  21  * text stuff. This function handles status, wall-to-wall status,
  22  * local comments, and remote coments that are posted on this site
  23  * (as opposed to being delivered in a feed).
  24  * Also processed here are posts and comments coming through the
  25  * statusnet/twitter API.
  26  *
  27  * All of these become an "item" which is our basic unit of
  28  * information.
  29  */
  30
  31 use Friendica\App;
  32 use Friendica\Content\Item as ItemHelper;
  33 use Friendica\Content\PageInfo;
  34 use Friendica\Content\Text\BBCode;
  35 use Friendica\Core\Hook;
  36 use Friendica\Core\Logger;
  37 use Friendica\Core\Protocol;
  38 use Friendica\Core\Session;
  39 use Friendica\Core\System;
  40 use Friendica\Core\Worker;
  41 use Friendica\Database\DBA;
  42 use Friendica\DI;
  43 use Friendica\Model\Attach;
  44 use Friendica\Model\Contact;
  45 use Friendica\Model\Conversation;
  46 use Friendica\Model\FileTag;
  47 use Friendica\Model\Item;
  48 use Friendica\Model\Notify;
  49 use Friendica\Model\Notify\Type;
  50 use Friendica\Model\Photo;
  51 use Friendica\Model\Post;
  52 use Friendica\Model\Tag;
  53 use Friendica\Network\HTTPException;
  54 use Friendica\Object\EMail\ItemCCEMail;
  55 use Friendica\Protocol\Activity;
  56 use Friendica\Protocol\Diaspora;
  57 use Friendica\Util\DateTimeFormat;
  58 use Friendica\Security\Security;
  59 use Friendica\Worker\Delivery;
  60
  61 function item_post(App $a) {
  62         if (!Session::isAuthenticated()) {
  63                 throw new HTTPException\ForbiddenException();
  64         }
  65
  66         $uid = local_user();
  67
  68         if (!empty($_REQUEST['dropitems'])) {
  69                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  70                 foreach ($arr_drop as $item) {
  71                         Item::deleteForUser(['id' => $item], $uid);
  72                 }
  73
  74                 $json = ['success' => 1];
  75                 System::jsonExit($json);
  76         }
  77
  78         Hook::callAll('post_local_start', $_REQUEST);
  79
  80         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  81
  82         $api_source = $_REQUEST['api_source'] ?? false;
  83
  84         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  85
  86         $return_path = $_REQUEST['return'] ?? '';
  87         $preview = intval($_REQUEST['preview'] ?? 0);
  88
  89         /*
  90          * Check for doubly-submitted posts, and reject duplicates
  91          * Note that we have to ignore previews, otherwise nothing will post
  92          * after it's been previewed
  93          */
  94         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  95                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  96                         Logger::info('item post: duplicate post');
  97                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  98                 } else {
  99                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
 100                 }
 101         }
 102
 103         // Is this a reply to something?
 104         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
 105         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 106
 107         $parent_item = null;
 108         $toplevel_item = null;
 109         $toplevel_item_id = 0;
 110         $toplevel_user_id = null;
 111
 112         $objecttype = null;
 113         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 114         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 115
 116         if ($parent_item_id || $thr_parent_uri) {
 117                 if ($parent_item_id) {
 118                         $parent_item = Item::selectFirst([], ['id' => $parent_item_id]);
 119                 } elseif ($thr_parent_uri) {
 120                         $parent_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 121                 }
 122
 123                 // if this isn't the top-level parent of the conversation, find it
 124                 if (DBA::isResult($parent_item)) {
 125                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 126                         $thr_parent_uri = $parent_item['uri'];
 127                         $toplevel_item = $parent_item;
 128
 129                         if ($parent_item['gravity'] != GRAVITY_PARENT) {
 130                                 $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item['parent']]);
 131                         }
 132                 }
 133
 134                 if (!DBA::isResult($toplevel_item)) {
 135                         notice(DI::l10n()->t('Unable to locate original post.'));
 136                         if ($return_path) {
 137                                 DI::baseUrl()->redirect($return_path);
 138                         }
 139                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 140                 }
 141
 142                 // When commenting on a public post then store the post for the current user
 143                 // This enables interaction like starring and saving into folders
 144                 if ($toplevel_item['uid'] == 0) {
 145                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user());
 146                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 147                         if ($stored) {
 148                                 $toplevel_item = Item::selectFirst([], ['id' => $stored]);
 149                         }
 150                 }
 151
 152                 $toplevel_item_id = $toplevel_item['id'];
 153                 $toplevel_user_id = $toplevel_item['uid'];
 154
 155                 $objecttype = Activity\ObjectType::COMMENT;
 156         }
 157
 158         if ($toplevel_item_id) {
 159                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 160         }
 161
 162         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 163         $app         = strip_tags($_REQUEST['source'] ?? '');
 164         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 165         $object      = $_REQUEST['object'] ?? '';
 166
 167         // Don't use "defaults" here. It would turn 0 to 1
 168         if (!isset($_REQUEST['wall'])) {
 169                 $wall = 1;
 170         } else {
 171                 $wall = $_REQUEST['wall'];
 172         }
 173
 174         // Ensure that the user id in a thread always stay the same
 175         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [local_user(), 0])) {
 176                 $profile_uid = $toplevel_user_id;
 177         }
 178
 179         // Check for multiple posts with the same message id (when the post was created via API)
 180         if (($message_id != '') && ($profile_uid != 0)) {
 181                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 182                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 183                         return 0;
 184                 }
 185         }
 186
 187         // Allow commenting if it is an answer to a public post
 188         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 189
 190         // Now check that valid personal details have been provided
 191         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 192                 notice(DI::l10n()->t('Permission denied.'));
 193                 if ($return_path) {
 194                         DI::baseUrl()->redirect($return_path);
 195                 }
 196
 197                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 198         }
 199
 200         // Init post instance
 201         $orig_post = null;
 202
 203         // is this an edited post?
 204         if ($post_id > 0) {
 205                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 206         }
 207
 208         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 209
 210         if (!DBA::isResult($user) && !$toplevel_item_id) {
 211                 return 0;
 212         }
 213
 214         $categories = '';
 215         $postopts = '';
 216         $emailcc = '';
 217         $body = $_REQUEST['body'] ?? '';
 218         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 219
 220         // If we have a speparate attachment, we need to add it to the body.
 221         if (!empty($has_attachment)) {
 222                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 223                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 224                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 225
 226                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 227                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 228
 229                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 230                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 231                 $attachment = [
 232                         'type'   => $attachment_type,
 233                         'title'  => $attachment_title,
 234                         'text'   => $attachment_text,
 235                         'url'    => $attachment_url,
 236                 ];
 237
 238                 if (!empty($attachment_img_src)) {
 239                         $attachment['images'] = [
 240                                 0 => [
 241                                         'src'    => $attachment_img_src,
 242                                         'width'  => $attachment_img_width,
 243                                         'height' => $attachment_img_height
 244                                 ]
 245                         ];
 246                 }
 247
 248                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 249                 $body .= $att_bbcode;
 250         }
 251
 252         // Convert links with empty descriptions to links without an explicit description
 253         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 254
 255         if (!empty($orig_post)) {
 256                 $str_group_allow   = $orig_post['allow_gid'];
 257                 $str_contact_allow = $orig_post['allow_cid'];
 258                 $str_group_deny    = $orig_post['deny_gid'];
 259                 $str_contact_deny  = $orig_post['deny_cid'];
 260                 $location          = $orig_post['location'];
 261                 $coord             = $orig_post['coord'];
 262                 $verb              = $orig_post['verb'];
 263                 $objecttype        = $orig_post['object-type'];
 264                 $app               = $orig_post['app'];
 265                 $categories        = $orig_post['file'] ?? '';
 266                 $title             = trim($_REQUEST['title'] ?? '');
 267                 $body              = trim($body);
 268                 $private           = $orig_post['private'];
 269                 $pubmail_enabled   = $orig_post['pubmail'];
 270                 $network           = $orig_post['network'];
 271                 $guid              = $orig_post['guid'];
 272                 $extid             = $orig_post['extid'];
 273         } else {
 274                 $str_contact_allow = '';
 275                 $str_group_allow   = '';
 276                 $str_contact_deny  = '';
 277                 $str_group_deny    = '';
 278
 279                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 280                         $aclFormatter = DI::aclFormatter();
 281                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 282                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 283                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 284                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 285                 }
 286
 287                 $title             = trim($_REQUEST['title']    ?? '');
 288                 $location          = trim($_REQUEST['location'] ?? '');
 289                 $coord             = trim($_REQUEST['coord']    ?? '');
 290                 $verb              = trim($_REQUEST['verb']     ?? '');
 291                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 292                 $body              = trim($body);
 293                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 294                 $guid              = System::createUUID();
 295
 296                 $postopts = $_REQUEST['postopts'] ?? '';
 297
 298                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 299                         $private = Item::PRIVATE;
 300                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 301                         $private = Item::UNLISTED;
 302                 } else {
 303                         $private = Item::PUBLIC;
 304                 }
 305
 306                 // If this is a comment, set the permissions from the parent.
 307
 308                 if ($toplevel_item) {
 309                         // for non native networks use the network of the original post as network of the item
 310                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 311                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 312                                 && ($network == "")) {
 313                                 $network = $toplevel_item['network'];
 314                         }
 315
 316                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 317                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 318                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 319                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 320                         $private           = $toplevel_item['private'];
 321
 322                         $wall              = $toplevel_item['wall'];
 323                 }
 324
 325                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 326
 327                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 328                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 329                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 330                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 331                         }
 332                 }
 333
 334                 if (!strlen($body)) {
 335                         if ($preview) {
 336                                 System::jsonExit(['preview' => '']);
 337                         }
 338
 339                         notice(DI::l10n()->t('Empty post discarded.'));
 340                         if ($return_path) {
 341                                 DI::baseUrl()->redirect($return_path);
 342                         }
 343
 344                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 345                 }
 346         }
 347
 348         if (!empty($categories)) {
 349                 // get the "fileas" tags for this post
 350                 $filedas = FileTag::fileToArray($categories);
 351         }
 352
 353         // save old and new categories, so we can determine what needs to be deleted from pconfig
 354         $categories_old = $categories;
 355         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 356         $categories_new = $categories;
 357
 358         if (!empty($filedas) && is_array($filedas)) {
 359                 // append the fileas stuff to the new categories list
 360                 $categories .= FileTag::arrayToFile($filedas);
 361         }
 362
 363         // get contact info for poster
 364
 365         $author = null;
 366         $self   = false;
 367         $contact_id = 0;
 368
 369         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 370                 $self = true;
 371                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 372         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 373                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 374         }
 375
 376         if (DBA::isResult($author)) {
 377                 $contact_id = $author['id'];
 378         }
 379
 380         // get contact info for owner
 381         if ($profile_uid == local_user() || $allow_comment) {
 382                 $contact_record = $author ?: [];
 383         } else {
 384                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 385         }
 386
 387         // Look for any tags and linkify them
 388         $inform   = '';
 389         $private_forum = false;
 390         $private_id = null;
 391         $only_to_forum = false;
 392         $forum_contact = [];
 393
 394         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 395                 $tags = BBCode::getTags($body);
 396
 397                 $tagged = [];
 398
 399                 foreach ($tags as $tag) {
 400                         $tag_type = substr($tag, 0, 1);
 401
 402                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 403                                 continue;
 404                         }
 405
 406                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 407                          * Robert Johnson should be first in the $tags array
 408                          */
 409                         foreach ($tagged as $nextTag) {
 410                                 if (stristr($nextTag, $tag . ' ')) {
 411                                         continue 2;
 412                                 }
 413                         }
 414
 415                         $success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 416                         if ($success['replaced']) {
 417                                 $tagged[] = $tag;
 418                         }
 419                         // When the forum is private or the forum is addressed with a "!" make the post private
 420                         if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 421                                 $private_forum = $success['contact']['prv'];
 422                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 423                                 $private_id = $success['contact']['id'];
 424                                 $forum_contact = $success['contact'];
 425                         } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 426                                 $private_forum = false;
 427                                 $only_to_forum = true;
 428                                 $private_id = $success['contact']['id'];
 429                                 $forum_contact = $success['contact'];
 430                         }
 431                 }
 432
 433                 return $body;
 434         });
 435
 436         $original_contact_id = $contact_id;
 437
 438         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 439                 // we tagged a forum in a top level post. Now we change the post
 440                 $private = $private_forum;
 441
 442                 $str_group_allow = '';
 443                 $str_contact_deny = '';
 444                 $str_group_deny = '';
 445                 if ($private_forum) {
 446                         $str_contact_allow = '<' . $private_id . '>';
 447                 } else {
 448                         $str_contact_allow = '';
 449                 }
 450                 $contact_id = $private_id;
 451                 $contact_record = $forum_contact;
 452                 $_REQUEST['origin'] = false;
 453                 $wall = 0;
 454         }
 455
 456         /*
 457          * When a photo was uploaded into the message using the (profile wall) ajax
 458          * uploader, The permissions are initially set to disallow anybody but the
 459          * owner from seeing it. This is because the permissions may not yet have been
 460          * set for the post. If it's private, the photo permissions should be set
 461          * appropriately. But we didn't know the final permissions on the post until
 462          * now. So now we'll look for links of uploaded messages that are in the
 463          * post and set them to the same permissions as the post itself.
 464          */
 465
 466         $match = null;
 467
 468         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 469                 $objecttype = Activity\ObjectType::IMAGE;
 470         }
 471
 472         /*
 473          * Next link in any attachment references we find in the post.
 474          */
 475         $match = false;
 476
 477         /// @todo these lines should be moved to Model/Attach (Once it exists)
 478         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 479                 $attaches = $match[1];
 480                 if (count($attaches)) {
 481                         foreach ($attaches as $attach) {
 482                                 // Ensure to only modify attachments that you own
 483                                 $srch = '<' . intval($original_contact_id) . '>';
 484
 485                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 486                                                 'id' => $attach];
 487                                 if (!Attach::exists($condition)) {
 488                                         continue;
 489                                 }
 490
 491                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 492                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 493                                 $condition = ['id' => $attach];
 494                                 Attach::update($fields, $condition);
 495                         }
 496                 }
 497         }
 498
 499         // embedded bookmark or attachment in post? set bookmark flag
 500
 501         $data = BBCode::getAttachmentData($body);
 502         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 503                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 504                 $posttype = Item::PT_PAGE;
 505                 $objecttype =  Activity\ObjectType::BOOKMARK;
 506         }
 507
 508         $body = DI::bbCodeVideo()->transform($body);
 509
 510         $body = BBCode::scaleExternalImages($body);
 511
 512         // Setting the object type if not defined before
 513         if (!$objecttype) {
 514                 $objecttype = Activity\ObjectType::NOTE; // Default value
 515                 $objectdata = BBCode::getAttachedData($body);
 516
 517                 if ($objectdata["type"] == "link") {
 518                         $objecttype = Activity\ObjectType::BOOKMARK;
 519                 } elseif ($objectdata["type"] == "video") {
 520                         $objecttype = Activity\ObjectType::VIDEO;
 521                 } elseif ($objectdata["type"] == "photo") {
 522                         $objecttype = Activity\ObjectType::IMAGE;
 523                 }
 524
 525         }
 526
 527         $attachments = '';
 528         $match = false;
 529
 530         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 531                 foreach ($match[2] as $mtch) {
 532                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 533                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 534                         if ($attachment !== false) {
 535                                 if (strlen($attachments)) {
 536                                         $attachments .= ',';
 537                                 }
 538                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 539                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 540                         }
 541                         $body = str_replace($match[1],'',$body);
 542                 }
 543         }
 544
 545         if (!strlen($verb)) {
 546                 $verb = Activity::POST;
 547         }
 548
 549         if ($network == "") {
 550                 $network = Protocol::DFRN;
 551         }
 552
 553         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 554
 555         // even if the post arrived via API we are considering that it
 556         // originated on this site by default for determining relayability.
 557
 558         // Don't use "defaults" here. It would turn 0 to 1
 559         if (!isset($_REQUEST['origin'])) {
 560                 $origin = 1;
 561         } else {
 562                 $origin = $_REQUEST['origin'];
 563         }
 564
 565         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 566
 567         // Fallback so that we alway have a parent uri
 568         if (!$thr_parent_uri || !$toplevel_item_id) {
 569                 $thr_parent_uri = $uri;
 570         }
 571
 572         $datarray = [];
 573         $datarray['uid']           = $profile_uid;
 574         $datarray['wall']          = $wall;
 575         $datarray['gravity']       = $gravity;
 576         $datarray['network']       = $network;
 577         $datarray['contact-id']    = $contact_id;
 578         $datarray['owner-name']    = $contact_record['name'] ?? '';
 579         $datarray['owner-link']    = $contact_record['url'] ?? '';
 580         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 581         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 582         $datarray['author-name']   = $author['name'];
 583         $datarray['author-link']   = $author['url'];
 584         $datarray['author-avatar'] = $author['thumb'];
 585         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 586         $datarray['created']       = DateTimeFormat::utcNow();
 587         $datarray['edited']        = DateTimeFormat::utcNow();
 588         $datarray['commented']     = DateTimeFormat::utcNow();
 589         $datarray['received']      = DateTimeFormat::utcNow();
 590         $datarray['changed']       = DateTimeFormat::utcNow();
 591         $datarray['extid']         = $extid;
 592         $datarray['guid']          = $guid;
 593         $datarray['uri']           = $uri;
 594         $datarray['title']         = $title;
 595         $datarray['body']          = $body;
 596         $datarray['app']           = $app;
 597         $datarray['location']      = $location;
 598         $datarray['coord']         = $coord;
 599         $datarray['file']          = $categories;
 600         $datarray['inform']        = $inform;
 601         $datarray['verb']          = $verb;
 602         $datarray['post-type']     = $posttype;
 603         $datarray['object-type']   = $objecttype;
 604         $datarray['allow_cid']     = $str_contact_allow;
 605         $datarray['allow_gid']     = $str_group_allow;
 606         $datarray['deny_cid']      = $str_contact_deny;
 607         $datarray['deny_gid']      = $str_group_deny;
 608         $datarray['private']       = $private;
 609         $datarray['pubmail']       = $pubmail_enabled;
 610         $datarray['attach']        = $attachments;
 611
 612         $datarray['thr-parent']    = $thr_parent_uri;
 613
 614         $datarray['postopts']      = $postopts;
 615         $datarray['origin']        = $origin;
 616         $datarray['moderated']     = false;
 617         $datarray['object']        = $object;
 618
 619         /*
 620          * These fields are for the convenience of addons...
 621          * 'self' if true indicates the owner is posting on their own wall
 622          * If parent is 0 it is a top-level post.
 623          */
 624         $datarray['parent']        = $toplevel_item_id;
 625         $datarray['self']          = $self;
 626
 627         // This triggers posts via API and the mirror functions
 628         $datarray['api_source'] = $api_source;
 629
 630         // This field is for storing the raw conversation data
 631         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 632
 633         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 634         if (DBA::isResult($conversation)) {
 635                 if ($conversation['conversation-uri'] != '') {
 636                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 637                 }
 638                 if ($conversation['conversation-href'] != '') {
 639                         $datarray['conversation-href'] = $conversation['conversation-href'];
 640                 }
 641         }
 642
 643         if ($orig_post) {
 644                 $datarray['edit'] = true;
 645         } else {
 646                 // If this was a share, add missing data here
 647                 $datarray = Item::addShareDataFromOriginal($datarray);
 648
 649                 $datarray['edit'] = false;
 650         }
 651
 652         // Check for hashtags in the body and repair or add hashtag links
 653         if ($preview || $orig_post) {
 654                 $datarray['body'] = Item::setHashtags($datarray['body']);
 655         }
 656
 657         // preview mode - prepare the body for display and send it via json
 658         if ($preview) {
 659                 // We set the datarray ID to -1 because in preview mode the dataray
 660                 // doesn't have an ID.
 661                 $datarray["id"] = -1;
 662                 $datarray["uri-id"] = -1;
 663                 $datarray["item_id"] = -1;
 664                 $datarray["author-network"] = Protocol::DFRN;
 665
 666                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 667
 668                 System::jsonExit(['preview' => $o]);
 669         }
 670
 671         Hook::callAll('post_local',$datarray);
 672
 673         if (!empty($datarray['cancel'])) {
 674                 Logger::info('mod_item: post cancelled by addon.');
 675                 if ($return_path) {
 676                         DI::baseUrl()->redirect($return_path);
 677                 }
 678
 679                 $json = ['cancel' => 1];
 680                 if (!empty($_REQUEST['jsreload'])) {
 681                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 682                 }
 683
 684                 System::jsonExit($json);
 685         }
 686
 687         if ($orig_post) {
 688                 // Fill the cache field
 689                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 690                 Item::putInCache($datarray);
 691
 692                 $fields = [
 693                         'title' => $datarray['title'],
 694                         'body' => $datarray['body'],
 695                         'attach' => $datarray['attach'],
 696                         'file' => $datarray['file'],
 697                         'rendered-html' => $datarray['rendered-html'],
 698                         'rendered-hash' => $datarray['rendered-hash'],
 699                         'edited' => DateTimeFormat::utcNow(),
 700                         'changed' => DateTimeFormat::utcNow()];
 701
 702                 Item::update($fields, ['id' => $post_id]);
 703
 704                 // update filetags in pconfig
 705                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 706
 707                 if ($return_path) {
 708                         DI::baseUrl()->redirect($return_path);
 709                 }
 710
 711                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 712         }
 713
 714         unset($datarray['edit']);
 715         unset($datarray['self']);
 716         unset($datarray['api_source']);
 717
 718         if ($origin) {
 719                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 720                 if (!empty($signed)) {
 721                         $datarray['diaspora_signed_text'] = json_encode($signed);
 722                 }
 723         }
 724
 725         $post_id = Item::insert($datarray);
 726
 727         if (!$post_id) {
 728                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 729                 if ($return_path) {
 730                         DI::baseUrl()->redirect($return_path);
 731                 }
 732
 733                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 734         }
 735
 736         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 737
 738         if (!DBA::isResult($datarray)) {
 739                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 740                 if ($return_path) {
 741                         DI::baseUrl()->redirect($return_path);
 742                 }
 743
 744                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 745         }
 746
 747         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 748
 749         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 750                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 751         }
 752
 753         // update filetags in pconfig
 754         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 755
 756         // These notifications are sent if someone else is commenting other your wall
 757         if ($contact_record != $author) {
 758                 if ($toplevel_item_id) {
 759                         notification([
 760                                 'type'  => Type::COMMENT,
 761                                 'otype' => Notify\ObjectType::ITEM,
 762                                 'verb'  => Activity::POST,
 763                                 'uid'   => $user['uid'],
 764                                 'cid'   => $datarray['author-id'],
 765                                 'item'  => $datarray,
 766                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 767                         ]);
 768                 } elseif (empty($forum_contact)) {
 769                         notification([
 770                                 'type'  => Type::WALL,
 771                                 'otype' => Notify\ObjectType::ITEM,
 772                                 'verb'  => Activity::POST,
 773                                 'uid'   => $user['uid'],
 774                                 'cid'   => $datarray['author-id'],
 775                                 'item'  => $datarray,
 776                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 777                         ]);
 778                 }
 779         }
 780
 781         Hook::callAll('post_local_end', $datarray);
 782
 783         if (strlen($emailcc) && $profile_uid == local_user()) {
 784                 $recipients = explode(',', $emailcc);
 785                 if (count($recipients)) {
 786                         foreach ($recipients as $recipient) {
 787                                 $address = trim($recipient);
 788                                 if (!strlen($address)) {
 789                                         continue;
 790                                 }
 791                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 792                                         $datarray, $address, $author['thumb'] ?? ''));
 793                         }
 794                 }
 795         }
 796
 797         // When we are doing some forum posting via ! we have to start the notifier manually.
 798         // These kind of posts don't initiate the notifier call in the item class.
 799         if ($only_to_forum) {
 800                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 801         }
 802
 803         Logger::info('post_complete');
 804
 805         if ($api_source) {
 806                 return $post_id;
 807         }
 808
 809         item_post_return(DI::baseUrl(), $api_source, $return_path);
 810         // NOTREACHED
 811 }
 812
 813 function item_post_return($baseurl, $api_source, $return_path)
 814 {
 815         if ($api_source) {
 816                 return;
 817         }
 818
 819         if ($return_path) {
 820                 DI::baseUrl()->redirect($return_path);
 821         }
 822
 823         $json = ['success' => 1];
 824         if (!empty($_REQUEST['jsreload'])) {
 825                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 826         }
 827
 828         Logger::info('post_json', ['json' => $json]);
 829
 830         System::jsonExit($json);
 831 }
 832
 833 function item_content(App $a)
 834 {
 835         if (!Session::isAuthenticated()) {
 836                 return;
 837         }
 838
 839         $o = '';
 840
 841         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 842                 if (DI::mode()->isAjax()) {
 843                         Item::deleteForUser(['id' => $a->argv[2]], local_user());
 844                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 845                         System::jsonExit([intval($a->argv[2]), local_user()]);
 846                 } else {
 847                         if (!empty($a->argv[3])) {
 848                                 $o = drop_item($a->argv[2], $a->argv[3]);
 849                         }
 850                         else {
 851                                 $o = drop_item($a->argv[2]);
 852                         }
 853                 }
 854         }
 855
 856         return $o;
 857 }
 858
 859 /**
 860  * @param int    $id
 861  * @param string $return
 862  * @return string
 863  * @throws HTTPException\InternalServerErrorException
 864  */
 865 function drop_item(int $id, string $return = '')
 866 {
 867         // locate item to be deleted
 868         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 869         $item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 870
 871         if (!DBA::isResult($item)) {
 872                 notice(DI::l10n()->t('Item not found.'));
 873                 DI::baseUrl()->redirect('network');
 874         }
 875
 876         if ($item['deleted']) {
 877                 return '';
 878         }
 879
 880         $contact_id = 0;
 881
 882         // check if logged in user is either the author or owner of this item
 883         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 884                 $contact_id = $item['contact-id'];
 885         }
 886
 887         if ((local_user() == $item['uid']) || $contact_id) {
 888                 if (!empty($item['parent'])) {
 889                         $parentitem = Item::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 890                 }
 891
 892                 // delete the item
 893                 Item::deleteForUser(['id' => $item['id']], local_user());
 894
 895                 $return_url = hex2bin($return);
 896
 897                 // removes update_* from return_url to ignore Ajax refresh
 898                 $return_url = str_replace("update_", "", $return_url);
 899
 900                 // Check if delete a comment
 901                 if ($item['gravity'] == GRAVITY_COMMENT) {
 902                         // Return to parent guid
 903                         if (!empty($parentitem)) {
 904                                 DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 905                                 //NOTREACHED
 906                         } // In case something goes wrong
 907                         else {
 908                                 DI::baseUrl()->redirect('network');
 909                                 //NOTREACHED
 910                         }
 911                 } else {
 912                         // if unknown location or deleting top level post called from display
 913                         if (empty($return_url) || strpos($return_url, 'display') !== false) {
 914                                 DI::baseUrl()->redirect('network');
 915                                 //NOTREACHED
 916                         } else {
 917                                 DI::baseUrl()->redirect($return_url);
 918                                 //NOTREACHED
 919                         }
 920                 }
 921         } else {
 922                 notice(DI::l10n()->t('Permission denied.'));
 923                 DI::baseUrl()->redirect('display/' . $item['guid']);
 924                 //NOTREACHED
 925         }
 926
 927         return '';
 928 }