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\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\APContact;
  44 use Friendica\Model\Attach;
  45 use Friendica\Model\Contact;
  46 use Friendica\Model\Conversation;
  47 use Friendica\Model\FileTag;
  48 use Friendica\Model\Item;
  49 use Friendica\Model\ItemURI;
  50 use Friendica\Model\Notification;
  51 use Friendica\Model\Photo;
  52 use Friendica\Model\Post;
  53 use Friendica\Model\Tag;
  54 use Friendica\Model\User;
  55 use Friendica\Network\HTTPException;
  56 use Friendica\Object\EMail\ItemCCEMail;
  57 use Friendica\Protocol\Activity;
  58 use Friendica\Security\Security;
  59 use Friendica\Util\DateTimeFormat;
  60 use Friendica\Util\ParseUrl;
  61 use Friendica\Worker\Delivery;
  62
  63 function item_post(App $a) {
  64         if (!Session::isAuthenticated()) {
  65                 throw new HTTPException\ForbiddenException();
  66         }
  67
  68         $uid = local_user();
  69
  70         if (!empty($_REQUEST['dropitems'])) {
  71                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  72                 foreach ($arr_drop as $item) {
  73                         Item::deleteForUser(['id' => $item], $uid);
  74                 }
  75
  76                 $json = ['success' => 1];
  77                 System::jsonExit($json);
  78         }
  79
  80         Hook::callAll('post_local_start', $_REQUEST);
  81
  82         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  83
  84         $api_source = $_REQUEST['api_source'] ?? false;
  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 = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item_id]);
 119                 } elseif ($thr_parent_uri) {
 120                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['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 = Post::selectFirst(Item::ITEM_FIELDLIST, ['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 = Post::selectFirst(Item::ITEM_FIELDLIST, ['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         // Allow commenting if it is an answer to a public post
 180         $allow_comment = local_user() && $toplevel_item_id && in_array($toplevel_item['private'], [Item::PUBLIC, Item::UNLISTED]) && in_array($toplevel_item['network'], Protocol::FEDERATED);
 181
 182         // Now check that valid personal details have been provided
 183         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 184                 Logger::notice('Permission denied.', ['local' => local_user(), 'profile_uid' => $profile_uid, 'toplevel_item_id' => $toplevel_item_id, 'network' => $toplevel_item['network']]);
 185                 notice(DI::l10n()->t('Permission denied.'));
 186                 if ($return_path) {
 187                         DI::baseUrl()->redirect($return_path);
 188                 }
 189
 190                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 191         }
 192
 193         // Init post instance
 194         $orig_post = null;
 195
 196         // is this an edited post?
 197         if ($post_id > 0) {
 198                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 199         }
 200
 201         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 202         if (!DBA::isResult($user) && !$toplevel_item_id) {
 203                 return 0;
 204         }
 205
 206         $categories = '';
 207         $postopts = '';
 208         $emailcc = '';
 209         $body = $_REQUEST['body'] ?? '';
 210         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 211
 212         // If we have a speparate attachment, we need to add it to the body.
 213         if (!empty($has_attachment)) {
 214                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 215                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 216                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 217
 218                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 219                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 220
 221                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 222                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 223
 224                 // Fetch the basic attachment data
 225                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 226                 unset($attachment['keywords']);
 227
 228                 // Overwrite the basic data with possible changes from the frontend
 229                 $attachment['type'] = $attachment_type;
 230                 $attachment['title'] = $attachment_title;
 231                 $attachment['text'] = $attachment_text;
 232                 $attachment['url'] = $attachment_url;
 233
 234                 if (!empty($attachment_img_src)) {
 235                         $attachment['images'] = [
 236                                 0 => [
 237                                         'src'    => $attachment_img_src,
 238                                         'width'  => $attachment_img_width,
 239                                         'height' => $attachment_img_height
 240                                 ]
 241                         ];
 242                 } else {
 243                         unset($attachment['images']);
 244                 }
 245
 246                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 247                 $body .= $att_bbcode;
 248         }
 249
 250         // Convert links with empty descriptions to links without an explicit description
 251         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 252
 253         if (!empty($orig_post)) {
 254                 $str_group_allow   = $orig_post['allow_gid'];
 255                 $str_contact_allow = $orig_post['allow_cid'];
 256                 $str_group_deny    = $orig_post['deny_gid'];
 257                 $str_contact_deny  = $orig_post['deny_cid'];
 258                 $location          = $orig_post['location'];
 259                 $coord             = $orig_post['coord'];
 260                 $verb              = $orig_post['verb'];
 261                 $objecttype        = $orig_post['object-type'];
 262                 $app               = $orig_post['app'];
 263                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 264                 $title             = trim($_REQUEST['title'] ?? '');
 265                 $body              = trim($body);
 266                 $private           = $orig_post['private'];
 267                 $pubmail_enabled   = $orig_post['pubmail'];
 268                 $network           = $orig_post['network'];
 269                 $guid              = $orig_post['guid'];
 270                 $extid             = $orig_post['extid'];
 271         } else {
 272                 $aclFormatter = DI::aclFormatter();
 273                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 274                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 275                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 276                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 277
 278                 $visibility = $_REQUEST['visibility'] ?? '';
 279                 if ($visibility === 'public') {
 280                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 281                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 282                 } else if ($visibility === 'custom') {
 283                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 284                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 285                         // See https://github.com/friendica/friendica/issues/9672
 286                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 287                 }
 288
 289                 $title             = trim($_REQUEST['title']    ?? '');
 290                 $location          = trim($_REQUEST['location'] ?? '');
 291                 $coord             = trim($_REQUEST['coord']    ?? '');
 292                 $verb              = trim($_REQUEST['verb']     ?? '');
 293                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 294                 $body              = trim($body);
 295                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 296                 $guid              = System::createUUID();
 297
 298                 $postopts = $_REQUEST['postopts'] ?? '';
 299
 300                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 301                         $private = Item::PRIVATE;
 302                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 303                         $private = Item::UNLISTED;
 304                 } else {
 305                         $private = Item::PUBLIC;
 306                 }
 307
 308                 // If this is a comment, set the permissions from the parent.
 309
 310                 if ($toplevel_item) {
 311                         // for non native networks use the network of the original post as network of the item
 312                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 313                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 314                                 && ($network == "")) {
 315                                 $network = $toplevel_item['network'];
 316                         }
 317
 318                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 319                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 320                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 321                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 322                         $private           = $toplevel_item['private'];
 323
 324                         $wall              = $toplevel_item['wall'];
 325                 }
 326
 327                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 328
 329                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 330                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 331                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 332                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 333                         }
 334                 }
 335
 336                 if (!strlen($body)) {
 337                         if ($preview) {
 338                                 System::jsonExit(['preview' => '']);
 339                         }
 340
 341                         notice(DI::l10n()->t('Empty post discarded.'));
 342                         if ($return_path) {
 343                                 DI::baseUrl()->redirect($return_path);
 344                         }
 345
 346                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 347                 }
 348         }
 349
 350         if (!empty($categories)) {
 351                 // get the "fileas" tags for this post
 352                 $filedas = FileTag::fileToArray($categories);
 353         }
 354
 355         $list_array = explode(',', trim($_REQUEST['category'] ?? ''));
 356         $categories = FileTag::arrayToFile($list_array, 'category');
 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         $forum_contact = [];
 393
 394         // Personal notes must never be altered to a forum post.
 395         if ($posttype != Item::PT_PERSONAL_NOTE) {
 396                 // Convert mentions in the body to a unified format
 397                 $body = BBCode::setMentions($body, local_user() ? local_user() : $profile_uid, $network);
 398
 399                 // Search for forum mentions
 400                 foreach (Tag::getFromBody($body, Tag::TAG_CHARACTER[Tag::MENTION] . Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]) as $tag) {
 401                         $contact = Contact::getByURLForUser($tag[2], $profile_uid);
 402                         if (!empty($inform)) {
 403                                 $inform .= ',';
 404                         }
 405                         $inform .= 'cid:' . $contact['id'];
 406
 407                         if (!$toplevel_item_id || empty($contact['cid']) || ($contact['contact-type'] != Contact::TYPE_COMMUNITY)) {
 408                                 continue;
 409                         }
 410
 411                         if (!empty($contact['prv']) || ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 412                                 $private_forum = $contact['prv'];
 413                                 $only_to_forum = ($tag[1] == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 414                                 $private_id = $contact['id'];
 415                                 $forum_contact = $contact;
 416                                 Logger::info('Private forum or exclusive mention', ['url' => $tag[2], 'mention' => $tag[1]]);
 417                         } elseif ($str_contact_allow == '<' . $contact['id'] . '>') {
 418                                 $private_forum = false;
 419                                 $only_to_forum = true;
 420                                 $private_id = $contact['id'];
 421                                 $forum_contact = $contact;
 422                                 Logger::info('Public forum', ['url' => $tag[2], 'mention' => $tag[1]]);
 423                         } else {
 424                                 Logger::info('Post with forum mention will not be converted to a forum post', ['url' => $tag[2], 'mention' => $tag[1]]);
 425                         }
 426                 }
 427                 Logger::info('Got inform', ['inform' => $inform]);
 428         }
 429
 430         $original_contact_id = $contact_id;
 431
 432         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 433                 // we tagged a forum in a top level post. Now we change the post
 434                 $private = $private_forum ? Item::PRIVATE : Item::UNLISTED;
 435
 436                 if ($only_to_forum) {
 437                         $postopts = '';
 438                 }
 439
 440                 if (!$private_forum) {
 441                         $str_contact_allow = '';
 442                         $str_group_allow   = '';
 443                         $str_contact_deny  = '';
 444                         $str_group_deny    = '';
 445                 }
 446
 447                 if ($private_forum || !APContact::getByURL($forum_contact['url'])) {
 448                         $str_group_allow = '';
 449                         $str_contact_deny = '';
 450                         $str_group_deny = '';
 451                         if ($private_forum) {
 452                                 $str_contact_allow = '<' . $private_id . '>';
 453                         } else {
 454                                 $str_contact_allow = '';
 455                         }
 456                         $contact_id = $private_id;
 457                         $contact_record = $forum_contact;
 458                         $_REQUEST['origin'] = false;
 459                         $wall = 0;
 460                 }
 461         }
 462
 463         /*
 464          * When a photo was uploaded into the message using the (profile wall) ajax
 465          * uploader, The permissions are initially set to disallow anybody but the
 466          * owner from seeing it. This is because the permissions may not yet have been
 467          * set for the post. If it's private, the photo permissions should be set
 468          * appropriately. But we didn't know the final permissions on the post until
 469          * now. So now we'll look for links of uploaded messages that are in the
 470          * post and set them to the same permissions as the post itself.
 471          */
 472
 473         $match = null;
 474
 475         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 476                 $objecttype = Activity\ObjectType::IMAGE;
 477         }
 478
 479         /*
 480          * Next link in any attachment references we find in the post.
 481          */
 482         $match = [];
 483
 484         /// @todo these lines should be moved to Model/Attach (Once it exists)
 485         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 486                 $attaches = $match[1];
 487                 if (count($attaches)) {
 488                         foreach ($attaches as $attach) {
 489                                 // Ensure to only modify attachments that you own
 490                                 $srch = '<' . intval($original_contact_id) . '>';
 491
 492                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 493                                                 'id' => $attach];
 494                                 if (!Attach::exists($condition)) {
 495                                         continue;
 496                                 }
 497
 498                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 499                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 500                                 $condition = ['id' => $attach];
 501                                 Attach::update($fields, $condition);
 502                         }
 503                 }
 504         }
 505
 506         // embedded bookmark or attachment in post? set bookmark flag
 507
 508         $data = BBCode::getAttachmentData($body);
 509         $match = [];
 510         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 511                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 512                 $posttype = Item::PT_PAGE;
 513                 $objecttype =  Activity\ObjectType::BOOKMARK;
 514         }
 515
 516         $body = DI::bbCodeVideo()->transform($body);
 517
 518         $body = BBCode::scaleExternalImages($body);
 519
 520         // Setting the object type if not defined before
 521         if (!$objecttype) {
 522                 $objecttype = Activity\ObjectType::NOTE; // Default value
 523                 $objectdata = BBCode::getAttachedData($body);
 524
 525                 if ($objectdata["type"] == "link") {
 526                         $objecttype = Activity\ObjectType::BOOKMARK;
 527                 } elseif ($objectdata["type"] == "video") {
 528                         $objecttype = Activity\ObjectType::VIDEO;
 529                 } elseif ($objectdata["type"] == "photo") {
 530                         $objecttype = Activity\ObjectType::IMAGE;
 531                 }
 532
 533         }
 534
 535         $attachments = '';
 536         $match = [];
 537
 538         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 539                 foreach ($match[2] as $mtch) {
 540                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 541                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 542                         if ($attachment !== false) {
 543                                 if (strlen($attachments)) {
 544                                         $attachments .= ',';
 545                                 }
 546                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 547                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 548                         }
 549                         $body = str_replace($match[1],'',$body);
 550                 }
 551         }
 552
 553         if (!strlen($verb)) {
 554                 $verb = Activity::POST;
 555         }
 556
 557         if ($network == "") {
 558                 $network = Protocol::DFRN;
 559         }
 560
 561         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 562
 563         // even if the post arrived via API we are considering that it
 564         // originated on this site by default for determining relayability.
 565
 566         // Don't use "defaults" here. It would turn 0 to 1
 567         if (!isset($_REQUEST['origin'])) {
 568                 $origin = 1;
 569         } else {
 570                 $origin = $_REQUEST['origin'];
 571         }
 572
 573         $uri = Item::newURI($api_source ? $profile_uid : $uid, $guid);
 574
 575         // Fallback so that we alway have a parent uri
 576         if (!$thr_parent_uri || !$toplevel_item_id) {
 577                 $thr_parent_uri = $uri;
 578         }
 579
 580         $datarray = [];
 581         $datarray['uid']           = $profile_uid;
 582         $datarray['wall']          = $wall;
 583         $datarray['gravity']       = $gravity;
 584         $datarray['network']       = $network;
 585         $datarray['contact-id']    = $contact_id;
 586         $datarray['owner-name']    = $contact_record['name'] ?? '';
 587         $datarray['owner-link']    = $contact_record['url'] ?? '';
 588         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 589         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 590         $datarray['author-name']   = $author['name'];
 591         $datarray['author-link']   = $author['url'];
 592         $datarray['author-avatar'] = $author['thumb'];
 593         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 594         $datarray['created']       = DateTimeFormat::utcNow();
 595         $datarray['edited']        = DateTimeFormat::utcNow();
 596         $datarray['commented']     = DateTimeFormat::utcNow();
 597         $datarray['received']      = DateTimeFormat::utcNow();
 598         $datarray['changed']       = DateTimeFormat::utcNow();
 599         $datarray['extid']         = $extid;
 600         $datarray['guid']          = $guid;
 601         $datarray['uri']           = $uri;
 602         $datarray['title']         = $title;
 603         $datarray['body']          = $body;
 604         $datarray['app']           = $app;
 605         $datarray['location']      = $location;
 606         $datarray['coord']         = $coord;
 607         $datarray['file']          = $categories;
 608         $datarray['inform']        = $inform;
 609         $datarray['verb']          = $verb;
 610         $datarray['post-type']     = $posttype;
 611         $datarray['object-type']   = $objecttype;
 612         $datarray['allow_cid']     = $str_contact_allow;
 613         $datarray['allow_gid']     = $str_group_allow;
 614         $datarray['deny_cid']      = $str_contact_deny;
 615         $datarray['deny_gid']      = $str_group_deny;
 616         $datarray['private']       = $private;
 617         $datarray['pubmail']       = $pubmail_enabled;
 618         $datarray['attach']        = $attachments;
 619
 620         $datarray['thr-parent']    = $thr_parent_uri;
 621
 622         $datarray['postopts']      = $postopts;
 623         $datarray['origin']        = $origin;
 624         $datarray['object']        = $object;
 625
 626         $datarray['attachments']   = $_REQUEST['attachments'] ?? [];
 627
 628         /*
 629          * These fields are for the convenience of addons...
 630          * 'self' if true indicates the owner is posting on their own wall
 631          * If parent is 0 it is a top-level post.
 632          */
 633         $datarray['parent']        = $toplevel_item_id;
 634         $datarray['self']          = $self;
 635
 636         // This triggers posts via API and the mirror functions
 637         $datarray['api_source'] = $api_source;
 638
 639         // This field is for storing the raw conversation data
 640         $datarray['protocol'] = Conversation::PARCEL_DIRECT;
 641         $datarray['direction'] = Conversation::PUSH;
 642
 643         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 644         if (DBA::isResult($conversation)) {
 645                 if ($conversation['conversation-uri'] != '') {
 646                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 647                 }
 648                 if ($conversation['conversation-href'] != '') {
 649                         $datarray['conversation-href'] = $conversation['conversation-href'];
 650                 }
 651         }
 652
 653         if ($orig_post) {
 654                 $datarray['edit'] = true;
 655         } else {
 656                 // If this was a share, add missing data here
 657                 $datarray = Item::addShareDataFromOriginal($datarray);
 658
 659                 $datarray['edit'] = false;
 660         }
 661
 662         // Check for hashtags in the body and repair or add hashtag links
 663         if ($preview || $orig_post) {
 664                 $datarray['body'] = Item::setHashtags($datarray['body']);
 665         }
 666
 667         // preview mode - prepare the body for display and send it via json
 668         if ($preview) {
 669                 // We set the datarray ID to -1 because in preview mode the dataray
 670                 // doesn't have an ID.
 671                 $datarray["id"] = -1;
 672                 $datarray["uri-id"] = -1;
 673                 $datarray["author-network"] = Protocol::DFRN;
 674
 675                 $o = DI::conversation()->create([array_merge($contact_record, $datarray)], 'search', false, true);
 676
 677                 System::jsonExit(['preview' => $o]);
 678         }
 679
 680         Hook::callAll('post_local',$datarray);
 681
 682         if (!empty($_REQUEST['scheduled_at'])) {
 683                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimeZone());
 684                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 685                         unset($datarray['created']);
 686                         unset($datarray['edited']);
 687                         unset($datarray['commented']);
 688                         unset($datarray['received']);
 689                         unset($datarray['changed']);
 690                         unset($datarray['edit']);
 691                         unset($datarray['self']);
 692                         unset($datarray['api_source']);
 693
 694                         Post\Delayed::add($datarray['uri'], $datarray, PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 695                         item_post_return(DI::baseUrl(), $api_source, $return_path);
 696                 }
 697         }
 698
 699         if (!empty($datarray['cancel'])) {
 700                 Logger::info('mod_item: post cancelled by addon.');
 701                 if ($return_path) {
 702                         DI::baseUrl()->redirect($return_path);
 703                 }
 704
 705                 $json = ['cancel' => 1];
 706                 if (!empty($_REQUEST['jsreload'])) {
 707                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 708                 }
 709
 710                 System::jsonExit($json);
 711         }
 712
 713         $datarray['uri-id'] = ItemURI::getIdByURI($datarray['uri']);
 714
 715         if ($orig_post) {
 716                 // Fill the cache field
 717                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 718                 Item::putInCache($datarray);
 719
 720                 $fields = [
 721                         'title' => $datarray['title'],
 722                         'body' => $datarray['body'],
 723                         'attach' => $datarray['attach'],
 724                         'file' => $datarray['file'],
 725                         'rendered-html' => $datarray['rendered-html'],
 726                         'rendered-hash' => $datarray['rendered-hash'],
 727                         'edited' => DateTimeFormat::utcNow(),
 728                         'changed' => DateTimeFormat::utcNow()];
 729
 730                 Item::update($fields, ['id' => $post_id]);
 731
 732                 if ($return_path) {
 733                         DI::baseUrl()->redirect($return_path);
 734                 }
 735
 736                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 737         }
 738
 739         unset($datarray['edit']);
 740         unset($datarray['self']);
 741         unset($datarray['api_source']);
 742
 743         $post_id = Item::insert($datarray);
 744
 745         if (!$post_id) {
 746                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 747                 if ($return_path) {
 748                         DI::baseUrl()->redirect($return_path);
 749                 }
 750
 751                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 752         }
 753
 754         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 755
 756         if (!DBA::isResult($datarray)) {
 757                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 758                 if ($return_path) {
 759                         DI::baseUrl()->redirect($return_path);
 760                 }
 761
 762                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 763         }
 764
 765         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 766
 767         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 768                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 769         }
 770
 771         // These notifications are sent if someone else is commenting other your wall
 772         if ($contact_record != $author) {
 773                 if ($toplevel_item_id) {
 774                         DI::notify()->createFromArray([
 775                                 'type'  => Notification\Type::COMMENT,
 776                                 'otype' => Notification\ObjectType::ITEM,
 777                                 'verb'  => Activity::POST,
 778                                 'uid'   => $profile_uid,
 779                                 'cid'   => $datarray['author-id'],
 780                                 'item'  => $datarray,
 781                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 782                         ]);
 783                 } elseif (empty($forum_contact)) {
 784                         DI::notify()->createFromArray([
 785                                 'type'  => Notification\Type::WALL,
 786                                 'otype' => Notification\ObjectType::ITEM,
 787                                 'verb'  => Activity::POST,
 788                                 'uid'   => $profile_uid,
 789                                 'cid'   => $datarray['author-id'],
 790                                 'item'  => $datarray,
 791                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 792                         ]);
 793                 }
 794         }
 795
 796         Hook::callAll('post_local_end', $datarray);
 797
 798         if (strlen($emailcc) && $profile_uid == local_user()) {
 799                 $recipients = explode(',', $emailcc);
 800                 if (count($recipients)) {
 801                         foreach ($recipients as $recipient) {
 802                                 $address = trim($recipient);
 803                                 if (!strlen($address)) {
 804                                         continue;
 805                                 }
 806                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 807                                         $datarray, $address, $author['thumb'] ?? ''));
 808                         }
 809                 }
 810         }
 811
 812         // When we are doing some forum posting via ! we have to start the notifier manually.
 813         // These kind of posts don't initiate the notifier call in the item class.
 814         if ($only_to_forum) {
 815                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, (int)$datarray['uri-id'], (int)$datarray['uid']);
 816         }
 817
 818         Logger::info('post_complete');
 819
 820         if ($api_source) {
 821                 return $post_id;
 822         }
 823
 824         item_post_return(DI::baseUrl(), $api_source, $return_path);
 825         // NOTREACHED
 826 }
 827
 828 function item_post_return($baseurl, $api_source, $return_path)
 829 {
 830         if ($api_source) {
 831                 return;
 832         }
 833
 834         if ($return_path) {
 835                 DI::baseUrl()->redirect($return_path);
 836         }
 837
 838         $json = ['success' => 1];
 839         if (!empty($_REQUEST['jsreload'])) {
 840                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 841         }
 842
 843         Logger::info('post_json', ['json' => $json]);
 844
 845         System::jsonExit($json);
 846 }
 847
 848 function item_content(App $a)
 849 {
 850         if (!Session::isAuthenticated()) {
 851                 throw new HTTPException\UnauthorizedException();
 852         }
 853
 854         $args = DI::args();
 855
 856         if (!$args->has(3)) {
 857                 throw new HTTPException\BadRequestException();
 858         }
 859
 860         $o = '';
 861         switch ($args->get(1)) {
 862                 case 'drop':
 863                         if (DI::mode()->isAjax()) {
 864                                 Item::deleteForUser(['id' => $args->get(2)], local_user());
 865                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 866                                 System::jsonExit([intval($args->get(2)), local_user()]);
 867                         } else {
 868                                 if (!empty($args->get(3))) {
 869                                         $o = drop_item($args->get(2), $args->get(3));
 870                                 } else {
 871                                         $o = drop_item($args->get(2));
 872                                 }
 873                         }
 874                         break;
 875                 case 'block':
 876                         $item = Post::selectFirstForUser(local_user(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 877                         if (empty($item['author-id'])) {
 878                                 throw new HTTPException\NotFoundException('Item not found');
 879                         }
 880
 881                         Contact\User::setBlocked($item['author-id'], local_user(), true);
 882
 883                         if (DI::mode()->isAjax()) {
 884                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 885                                 System::jsonExit([intval($args->get(2)), local_user()]);
 886                         } else {
 887                                 item_redirect_after_action($item, $args->get(3));
 888                         }
 889                         break;
 890         }
 891
 892         return $o;
 893 }
 894
 895 /**
 896  * @param int    $id
 897  * @param string $return
 898  * @return string
 899  * @throws HTTPException\InternalServerErrorException
 900  */
 901 function drop_item(int $id, string $return = '')
 902 {
 903         // locate item to be deleted
 904         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 905         $item = Post::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 906
 907         if (!DBA::isResult($item)) {
 908                 notice(DI::l10n()->t('Item not found.'));
 909                 DI::baseUrl()->redirect('network');
 910         }
 911
 912         if ($item['deleted']) {
 913                 return '';
 914         }
 915
 916         $contact_id = 0;
 917
 918         // check if logged in user is either the author or owner of this item
 919         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 920                 $contact_id = $item['contact-id'];
 921         }
 922
 923         if ((local_user() == $item['uid']) || $contact_id) {
 924                 // delete the item
 925                 Item::deleteForUser(['id' => $item['id']], local_user());
 926
 927                 item_redirect_after_action($item, $return);
 928         } else {
 929                 Logger::notice('Permission denied.', ['local' => local_user(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 930                 notice(DI::l10n()->t('Permission denied.'));
 931                 DI::baseUrl()->redirect('display/' . $item['guid']);
 932                 //NOTREACHED
 933         }
 934
 935         return '';
 936 }
 937
 938 function item_redirect_after_action($item, $returnUrlHex)
 939 {
 940         $return_url = hex2bin($returnUrlHex);
 941
 942         // removes update_* from return_url to ignore Ajax refresh
 943         $return_url = str_replace("update_", "", $return_url);
 944
 945         // Check if delete a comment
 946         if ($item['gravity'] == GRAVITY_COMMENT) {
 947                 if (!empty($item['parent'])) {
 948                         $parentitem = Post::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 949                 }
 950
 951                 // Return to parent guid
 952                 if (!empty($parentitem)) {
 953                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 954                         //NOTREACHED
 955                 } // In case something goes wrong
 956                 else {
 957                         DI::baseUrl()->redirect('network');
 958                         //NOTREACHED
 959                 }
 960         } else {
 961                 // if unknown location or deleting top level post called from display
 962                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 963                         DI::baseUrl()->redirect('network');
 964                         //NOTREACHED
 965                 } else {
 966                         DI::baseUrl()->redirect($return_url);
 967                         //NOTREACHED
 968                 }
 969         }
 970 }