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\Type;
  49 use Friendica\Model\Photo;
  50 use Friendica\Model\Post;
  51 use Friendica\Model\Tag;
  52 use Friendica\Network\HTTPException;
  53 use Friendica\Object\EMail\ItemCCEMail;
  54 use Friendica\Protocol\Activity;
  55 use Friendica\Protocol\Diaspora;
  56 use Friendica\Util\DateTimeFormat;
  57 use Friendica\Security\Security;
  58 use Friendica\Worker\Delivery;
  59
  60 function item_post(App $a) {
  61         if (!Session::isAuthenticated()) {
  62                 throw new HTTPException\ForbiddenException();
  63         }
  64
  65         $uid = local_user();
  66
  67         if (!empty($_REQUEST['dropitems'])) {
  68                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  69                 foreach ($arr_drop as $item) {
  70                         Item::deleteForUser(['id' => $item], $uid);
  71                 }
  72
  73                 $json = ['success' => 1];
  74                 System::jsonExit($json);
  75         }
  76
  77         Hook::callAll('post_local_start', $_REQUEST);
  78
  79         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  80
  81         $api_source = $_REQUEST['api_source'] ?? false;
  82
  83         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  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 = Item::selectFirst([], ['id' => $parent_item_id]);
 118                 } elseif ($thr_parent_uri) {
 119                         $parent_item = Item::selectFirst([], ['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 = Item::selectFirst([], ['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 = Item::selectFirst([], ['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 = $toplevel_user_id;
 176         }
 177
 178         // Check for multiple posts with the same message id (when the post was created via API)
 179         if (($message_id != '') && ($profile_uid != 0)) {
 180                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 181                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 182                         return 0;
 183                 }
 184         }
 185
 186         // Allow commenting if it is an answer to a public post
 187         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 188
 189         // Now check that valid personal details have been provided
 190         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 191                 notice(DI::l10n()->t('Permission denied.'));
 192                 if ($return_path) {
 193                         DI::baseUrl()->redirect($return_path);
 194                 }
 195
 196                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 197         }
 198
 199         // Init post instance
 200         $orig_post = null;
 201
 202         // is this an edited post?
 203         if ($post_id > 0) {
 204                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 205         }
 206
 207         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 208
 209         if (!DBA::isResult($user) && !$toplevel_item_id) {
 210                 return 0;
 211         }
 212
 213         $categories = '';
 214         $postopts = '';
 215         $emailcc = '';
 216         $body = $_REQUEST['body'] ?? '';
 217         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 218
 219         // If we have a speparate attachment, we need to add it to the body.
 220         if (!empty($has_attachment)) {
 221                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 222                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 223                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 224
 225                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 226                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 227
 228                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 229                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 230                 $attachment = [
 231                         'type'   => $attachment_type,
 232                         'title'  => $attachment_title,
 233                         'text'   => $attachment_text,
 234                         'url'    => $attachment_url,
 235                 ];
 236
 237                 if (!empty($attachment_img_src)) {
 238                         $attachment['images'] = [
 239                                 0 => [
 240                                         'src'    => $attachment_img_src,
 241                                         'width'  => $attachment_img_width,
 242                                         'height' => $attachment_img_height
 243                                 ]
 244                         ];
 245                 }
 246
 247                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 248                 $body .= $att_bbcode;
 249         }
 250
 251         // Convert links with empty descriptions to links without an explicit description
 252         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 253
 254         if (!empty($orig_post)) {
 255                 $str_group_allow   = $orig_post['allow_gid'];
 256                 $str_contact_allow = $orig_post['allow_cid'];
 257                 $str_group_deny    = $orig_post['deny_gid'];
 258                 $str_contact_deny  = $orig_post['deny_cid'];
 259                 $location          = $orig_post['location'];
 260                 $coord             = $orig_post['coord'];
 261                 $verb              = $orig_post['verb'];
 262                 $objecttype        = $orig_post['object-type'];
 263                 $app               = $orig_post['app'];
 264                 $categories        = $orig_post['file'] ?? '';
 265                 $title             = trim($_REQUEST['title'] ?? '');
 266                 $body              = trim($body);
 267                 $private           = $orig_post['private'];
 268                 $pubmail_enabled   = $orig_post['pubmail'];
 269                 $network           = $orig_post['network'];
 270                 $guid              = $orig_post['guid'];
 271                 $extid             = $orig_post['extid'];
 272         } else {
 273                 $str_contact_allow = '';
 274                 $str_group_allow   = '';
 275                 $str_contact_deny  = '';
 276                 $str_group_deny    = '';
 277
 278                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 279                         $aclFormatter = DI::aclFormatter();
 280                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 281                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 282                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 283                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 284                 }
 285
 286                 $title             = trim($_REQUEST['title']    ?? '');
 287                 $location          = trim($_REQUEST['location'] ?? '');
 288                 $coord             = trim($_REQUEST['coord']    ?? '');
 289                 $verb              = trim($_REQUEST['verb']     ?? '');
 290                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 291                 $body              = trim($body);
 292                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 293                 $guid              = System::createUUID();
 294
 295                 $postopts = $_REQUEST['postopts'] ?? '';
 296
 297                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 298                         $private = Item::PRIVATE;
 299                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 300                         $private = Item::UNLISTED;
 301                 } else {
 302                         $private = Item::PUBLIC;
 303                 }
 304
 305                 // If this is a comment, set the permissions from the parent.
 306
 307                 if ($toplevel_item) {
 308                         // for non native networks use the network of the original post as network of the item
 309                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 310                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 311                                 && ($network == "")) {
 312                                 $network = $toplevel_item['network'];
 313                         }
 314
 315                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 316                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 317                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 318                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 319                         $private           = $toplevel_item['private'];
 320
 321                         $wall              = $toplevel_item['wall'];
 322                 }
 323
 324                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 325
 326                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 327                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 328                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 329                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 330                         }
 331                 }
 332
 333                 if (!strlen($body)) {
 334                         if ($preview) {
 335                                 System::jsonExit(['preview' => '']);
 336                         }
 337
 338                         notice(DI::l10n()->t('Empty post discarded.'));
 339                         if ($return_path) {
 340                                 DI::baseUrl()->redirect($return_path);
 341                         }
 342
 343                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 344                 }
 345         }
 346
 347         if (!empty($categories)) {
 348                 // get the "fileas" tags for this post
 349                 $filedas = FileTag::fileToArray($categories);
 350         }
 351
 352         // save old and new categories, so we can determine what needs to be deleted from pconfig
 353         $categories_old = $categories;
 354         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 355         $categories_new = $categories;
 356
 357         if (!empty($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         // Look for any tags and linkify them
 387         $inform   = '';
 388         $private_forum = false;
 389         $private_id = null;
 390         $only_to_forum = false;
 391         $forum_contact = [];
 392
 393         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 394                 $tags = BBCode::getTags($body);
 395
 396                 $tagged = [];
 397
 398                 foreach ($tags as $tag) {
 399                         $tag_type = substr($tag, 0, 1);
 400
 401                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 402                                 continue;
 403                         }
 404
 405                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 406                          * Robert Johnson should be first in the $tags array
 407                          */
 408                         foreach ($tagged as $nextTag) {
 409                                 if (stristr($nextTag, $tag . ' ')) {
 410                                         continue 2;
 411                                 }
 412                         }
 413
 414                         $success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 415                         if ($success['replaced']) {
 416                                 $tagged[] = $tag;
 417                         }
 418                         // When the forum is private or the forum is addressed with a "!" make the post private
 419                         if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 420                                 $private_forum = $success['contact']['prv'];
 421                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 422                                 $private_id = $success['contact']['id'];
 423                                 $forum_contact = $success['contact'];
 424                         } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 425                                 $private_forum = false;
 426                                 $only_to_forum = true;
 427                                 $private_id = $success['contact']['id'];
 428                                 $forum_contact = $success['contact'];
 429                         }
 430                 }
 431
 432                 return $body;
 433         });
 434
 435         $original_contact_id = $contact_id;
 436
 437         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 438                 // we tagged a forum in a top level post. Now we change the post
 439                 $private = $private_forum;
 440
 441                 $str_group_allow = '';
 442                 $str_contact_deny = '';
 443                 $str_group_deny = '';
 444                 if ($private_forum) {
 445                         $str_contact_allow = '<' . $private_id . '>';
 446                 } else {
 447                         $str_contact_allow = '';
 448                 }
 449                 $contact_id = $private_id;
 450                 $contact_record = $forum_contact;
 451                 $_REQUEST['origin'] = false;
 452                 $wall = 0;
 453         }
 454
 455         /*
 456          * When a photo was uploaded into the message using the (profile wall) ajax
 457          * uploader, The permissions are initially set to disallow anybody but the
 458          * owner from seeing it. This is because the permissions may not yet have been
 459          * set for the post. If it's private, the photo permissions should be set
 460          * appropriately. But we didn't know the final permissions on the post until
 461          * now. So now we'll look for links of uploaded messages that are in the
 462          * post and set them to the same permissions as the post itself.
 463          */
 464
 465         $match = null;
 466
 467         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 468                 $objecttype = Activity\ObjectType::IMAGE;
 469         }
 470
 471         /*
 472          * Next link in any attachment references we find in the post.
 473          */
 474         $match = false;
 475
 476         /// @todo these lines should be moved to Model/Attach (Once it exists)
 477         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 478                 $attaches = $match[1];
 479                 if (count($attaches)) {
 480                         foreach ($attaches as $attach) {
 481                                 // Ensure to only modify attachments that you own
 482                                 $srch = '<' . intval($original_contact_id) . '>';
 483
 484                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 485                                                 'id' => $attach];
 486                                 if (!Attach::exists($condition)) {
 487                                         continue;
 488                                 }
 489
 490                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 491                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 492                                 $condition = ['id' => $attach];
 493                                 Attach::update($fields, $condition);
 494                         }
 495                 }
 496         }
 497
 498         // embedded bookmark or attachment in post? set bookmark flag
 499
 500         $data = BBCode::getAttachmentData($body);
 501         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 502                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 503                 $posttype = Item::PT_PAGE;
 504                 $objecttype =  Activity\ObjectType::BOOKMARK;
 505         }
 506
 507         $body = DI::bbCodeVideo()->transform($body);
 508
 509         $body = BBCode::scaleExternalImages($body);
 510
 511         // Setting the object type if not defined before
 512         if (!$objecttype) {
 513                 $objecttype = Activity\ObjectType::NOTE; // Default value
 514                 $objectdata = BBCode::getAttachedData($body);
 515
 516                 if ($objectdata["type"] == "link") {
 517                         $objecttype = Activity\ObjectType::BOOKMARK;
 518                 } elseif ($objectdata["type"] == "video") {
 519                         $objecttype = Activity\ObjectType::VIDEO;
 520                 } elseif ($objectdata["type"] == "photo") {
 521                         $objecttype = Activity\ObjectType::IMAGE;
 522                 }
 523
 524         }
 525
 526         $attachments = '';
 527         $match = false;
 528
 529         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 530                 foreach ($match[2] as $mtch) {
 531                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 532                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 533                         if ($attachment !== false) {
 534                                 if (strlen($attachments)) {
 535                                         $attachments .= ',';
 536                                 }
 537                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 538                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 539                         }
 540                         $body = str_replace($match[1],'',$body);
 541                 }
 542         }
 543
 544         if (!strlen($verb)) {
 545                 $verb = Activity::POST;
 546         }
 547
 548         if ($network == "") {
 549                 $network = Protocol::DFRN;
 550         }
 551
 552         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 553
 554         // even if the post arrived via API we are considering that it
 555         // originated on this site by default for determining relayability.
 556
 557         // Don't use "defaults" here. It would turn 0 to 1
 558         if (!isset($_REQUEST['origin'])) {
 559                 $origin = 1;
 560         } else {
 561                 $origin = $_REQUEST['origin'];
 562         }
 563
 564         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 565
 566         // Fallback so that we alway have a parent uri
 567         if (!$thr_parent_uri || !$toplevel_item_id) {
 568                 $thr_parent_uri = $uri;
 569         }
 570
 571         $datarray = [];
 572         $datarray['uid']           = $profile_uid;
 573         $datarray['wall']          = $wall;
 574         $datarray['gravity']       = $gravity;
 575         $datarray['network']       = $network;
 576         $datarray['contact-id']    = $contact_id;
 577         $datarray['owner-name']    = $contact_record['name'] ?? '';
 578         $datarray['owner-link']    = $contact_record['url'] ?? '';
 579         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 580         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 581         $datarray['author-name']   = $author['name'];
 582         $datarray['author-link']   = $author['url'];
 583         $datarray['author-avatar'] = $author['thumb'];
 584         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 585         $datarray['created']       = DateTimeFormat::utcNow();
 586         $datarray['edited']        = DateTimeFormat::utcNow();
 587         $datarray['commented']     = DateTimeFormat::utcNow();
 588         $datarray['received']      = DateTimeFormat::utcNow();
 589         $datarray['changed']       = DateTimeFormat::utcNow();
 590         $datarray['extid']         = $extid;
 591         $datarray['guid']          = $guid;
 592         $datarray['uri']           = $uri;
 593         $datarray['title']         = $title;
 594         $datarray['body']          = $body;
 595         $datarray['app']           = $app;
 596         $datarray['location']      = $location;
 597         $datarray['coord']         = $coord;
 598         $datarray['file']          = $categories;
 599         $datarray['inform']        = $inform;
 600         $datarray['verb']          = $verb;
 601         $datarray['post-type']     = $posttype;
 602         $datarray['object-type']   = $objecttype;
 603         $datarray['allow_cid']     = $str_contact_allow;
 604         $datarray['allow_gid']     = $str_group_allow;
 605         $datarray['deny_cid']      = $str_contact_deny;
 606         $datarray['deny_gid']      = $str_group_deny;
 607         $datarray['private']       = $private;
 608         $datarray['pubmail']       = $pubmail_enabled;
 609         $datarray['attach']        = $attachments;
 610
 611         $datarray['thr-parent']    = $thr_parent_uri;
 612
 613         $datarray['postopts']      = $postopts;
 614         $datarray['origin']        = $origin;
 615         $datarray['moderated']     = false;
 616         $datarray['object']        = $object;
 617
 618         /*
 619          * These fields are for the convenience of addons...
 620          * 'self' if true indicates the owner is posting on their own wall
 621          * If parent is 0 it is a top-level post.
 622          */
 623         $datarray['parent']        = $toplevel_item_id;
 624         $datarray['self']          = $self;
 625
 626         // This triggers posts via API and the mirror functions
 627         $datarray['api_source'] = $api_source;
 628
 629         // This field is for storing the raw conversation data
 630         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 631
 632         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 633         if (DBA::isResult($conversation)) {
 634                 if ($conversation['conversation-uri'] != '') {
 635                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 636                 }
 637                 if ($conversation['conversation-href'] != '') {
 638                         $datarray['conversation-href'] = $conversation['conversation-href'];
 639                 }
 640         }
 641
 642         if ($orig_post) {
 643                 $datarray['edit'] = true;
 644         } else {
 645                 // If this was a share, add missing data here
 646                 $datarray = Item::addShareDataFromOriginal($datarray);
 647
 648                 $datarray['edit'] = false;
 649         }
 650
 651         // Check for hashtags in the body and repair or add hashtag links
 652         if ($preview || $orig_post) {
 653                 $datarray['body'] = Item::setHashtags($datarray['body']);
 654         }
 655
 656         // preview mode - prepare the body for display and send it via json
 657         if ($preview) {
 658                 // We set the datarray ID to -1 because in preview mode the dataray
 659                 // doesn't have an ID.
 660                 $datarray["id"] = -1;
 661                 $datarray["uri-id"] = -1;
 662                 $datarray["item_id"] = -1;
 663                 $datarray["author-network"] = Protocol::DFRN;
 664
 665                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 666
 667                 System::jsonExit(['preview' => $o]);
 668         }
 669
 670         Hook::callAll('post_local',$datarray);
 671
 672         if (!empty($datarray['cancel'])) {
 673                 Logger::info('mod_item: post cancelled by addon.');
 674                 if ($return_path) {
 675                         DI::baseUrl()->redirect($return_path);
 676                 }
 677
 678                 $json = ['cancel' => 1];
 679                 if (!empty($_REQUEST['jsreload'])) {
 680                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 681                 }
 682
 683                 System::jsonExit($json);
 684         }
 685
 686         if ($orig_post) {
 687                 // Fill the cache field
 688                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 689                 Item::putInCache($datarray);
 690
 691                 $fields = [
 692                         'title' => $datarray['title'],
 693                         'body' => $datarray['body'],
 694                         'attach' => $datarray['attach'],
 695                         'file' => $datarray['file'],
 696                         'rendered-html' => $datarray['rendered-html'],
 697                         'rendered-hash' => $datarray['rendered-hash'],
 698                         'edited' => DateTimeFormat::utcNow(),
 699                         'changed' => DateTimeFormat::utcNow()];
 700
 701                 Item::update($fields, ['id' => $post_id]);
 702
 703                 // update filetags in pconfig
 704                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 705
 706                 if ($return_path) {
 707                         DI::baseUrl()->redirect($return_path);
 708                 }
 709
 710                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 711         }
 712
 713         unset($datarray['edit']);
 714         unset($datarray['self']);
 715         unset($datarray['api_source']);
 716
 717         if ($origin) {
 718                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 719                 if (!empty($signed)) {
 720                         $datarray['diaspora_signed_text'] = json_encode($signed);
 721                 }
 722         }
 723
 724         $post_id = Item::insert($datarray);
 725
 726         if (!$post_id) {
 727                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 728                 if ($return_path) {
 729                         DI::baseUrl()->redirect($return_path);
 730                 }
 731
 732                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 733         }
 734
 735         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 736
 737         if (!DBA::isResult($datarray)) {
 738                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 739                 if ($return_path) {
 740                         DI::baseUrl()->redirect($return_path);
 741                 }
 742
 743                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 744         }
 745
 746         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 747
 748         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 749                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 750         }
 751
 752         // update filetags in pconfig
 753         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 754
 755         // These notifications are sent if someone else is commenting other your wall
 756         if ($contact_record != $author) {
 757                 if ($toplevel_item_id) {
 758                         notification([
 759                                 'type'         => Type::COMMENT,
 760                                 'notify_flags' => $user['notify-flags'],
 761                                 'language'     => $user['language'],
 762                                 'to_name'      => $user['username'],
 763                                 'to_email'     => $user['email'],
 764                                 'uid'          => $user['uid'],
 765                                 'item'         => $datarray,
 766                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 767                                 'source_name'  => $datarray['author-name'],
 768                                 'source_link'  => $datarray['author-link'],
 769                                 'source_photo' => $datarray['author-avatar'],
 770                                 'verb'         => Activity::POST,
 771                                 'otype'        => 'item',
 772                                 'parent'       => $toplevel_item_id,
 773                                 'parent_uri'   => $toplevel_item['uri']
 774                         ]);
 775                 } elseif (empty($forum_contact)) {
 776                         notification([
 777                                 'type'         => Type::WALL,
 778                                 'notify_flags' => $user['notify-flags'],
 779                                 'language'     => $user['language'],
 780                                 'to_name'      => $user['username'],
 781                                 'to_email'     => $user['email'],
 782                                 'uid'          => $user['uid'],
 783                                 'item'         => $datarray,
 784                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 785                                 'source_name'  => $datarray['author-name'],
 786                                 'source_link'  => $datarray['author-link'],
 787                                 'source_photo' => $datarray['author-avatar'],
 788                                 'verb'         => Activity::POST,
 789                                 'otype'        => 'item'
 790                         ]);
 791                 }
 792         }
 793
 794         Hook::callAll('post_local_end', $datarray);
 795
 796         if (strlen($emailcc) && $profile_uid == local_user()) {
 797                 $recipients = explode(',', $emailcc);
 798                 if (count($recipients)) {
 799                         foreach ($recipients as $recipient) {
 800                                 $address = trim($recipient);
 801                                 if (!strlen($address)) {
 802                                         continue;
 803                                 }
 804                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 805                                         $datarray, $address, $author['thumb'] ?? ''));
 806                         }
 807                 }
 808         }
 809
 810         // When we are doing some forum posting via ! we have to start the notifier manually.
 811         // These kind of posts don't initiate the notifier call in the item class.
 812         if ($only_to_forum) {
 813                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 814         }
 815
 816         Logger::info('post_complete');
 817
 818         if ($api_source) {
 819                 return $post_id;
 820         }
 821
 822         item_post_return(DI::baseUrl(), $api_source, $return_path);
 823         // NOTREACHED
 824 }
 825
 826 function item_post_return($baseurl, $api_source, $return_path)
 827 {
 828         if ($api_source) {
 829                 return;
 830         }
 831
 832         if ($return_path) {
 833                 DI::baseUrl()->redirect($return_path);
 834         }
 835
 836         $json = ['success' => 1];
 837         if (!empty($_REQUEST['jsreload'])) {
 838                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 839         }
 840
 841         Logger::info('post_json', ['json' => $json]);
 842
 843         System::jsonExit($json);
 844 }
 845
 846 function item_content(App $a)
 847 {
 848         if (!Session::isAuthenticated()) {
 849                 return;
 850         }
 851
 852         $o = '';
 853
 854         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 855                 if (DI::mode()->isAjax()) {
 856                         Item::deleteForUser(['id' => $a->argv[2]], local_user());
 857                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 858                         System::jsonExit([intval($a->argv[2]), local_user()]);
 859                 } else {
 860                         if (!empty($a->argv[3])) {
 861                                 $o = drop_item($a->argv[2], $a->argv[3]);
 862                         }
 863                         else {
 864                                 $o = drop_item($a->argv[2]);
 865                         }
 866                 }
 867         }
 868
 869         return $o;
 870 }
 871
 872 /**
 873  * @param int    $id
 874  * @param string $return
 875  * @return string
 876  * @throws HTTPException\InternalServerErrorException
 877  */
 878 function drop_item(int $id, string $return = '')
 879 {
 880         // locate item to be deleted
 881         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 882         $item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 883
 884         if (!DBA::isResult($item)) {
 885                 notice(DI::l10n()->t('Item not found.'));
 886                 DI::baseUrl()->redirect('network');
 887         }
 888
 889         if ($item['deleted']) {
 890                 return '';
 891         }
 892
 893         $contact_id = 0;
 894
 895         // check if logged in user is either the author or owner of this item
 896         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 897                 $contact_id = $item['contact-id'];
 898         }
 899
 900         if ((local_user() == $item['uid']) || $contact_id) {
 901                 if (!empty($item['parent'])) {
 902                         $parentitem = Item::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 903                 }
 904
 905                 // delete the item
 906                 Item::deleteForUser(['id' => $item['id']], local_user());
 907
 908                 $return_url = hex2bin($return);
 909
 910                 // removes update_* from return_url to ignore Ajax refresh
 911                 $return_url = str_replace("update_", "", $return_url);
 912
 913                 // Check if delete a comment
 914                 if ($item['gravity'] == GRAVITY_COMMENT) {
 915                         // Return to parent guid
 916                         if (!empty($parentitem)) {
 917                                 DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 918                                 //NOTREACHED
 919                         } // In case something goes wrong
 920                         else {
 921                                 DI::baseUrl()->redirect('network');
 922                                 //NOTREACHED
 923                         }
 924                 } else {
 925                         // if unknown location or deleting top level post called from display
 926                         if (empty($return_url) || strpos($return_url, 'display') !== false) {
 927                                 DI::baseUrl()->redirect('network');
 928                                 //NOTREACHED
 929                         } else {
 930                                 DI::baseUrl()->redirect($return_url);
 931                                 //NOTREACHED
 932                         }
 933                 }
 934         } else {
 935                 notice(DI::l10n()->t('Permission denied.'));
 936                 DI::baseUrl()->redirect('display/' . $item['guid']);
 937                 //NOTREACHED
 938         }
 939
 940         return '';
 941 }