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\Renderer;
  39 use Friendica\Core\Session;
  40 use Friendica\Core\System;
  41 use Friendica\Core\Worker;
  42 use Friendica\Database\DBA;
  43 use Friendica\DI;
  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\Notify\Type;
  50 use Friendica\Model\Photo;
  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\Util\Strings;
  59 use Friendica\Worker\Delivery;
  60
  61 function item_post(App $a) {
  62         if (!Session::isAuthenticated()) {
  63                 throw new HTTPException\ForbiddenException();
  64         }
  65
  66         $uid = local_user();
  67
  68         if (!empty($_REQUEST['dropitems'])) {
  69                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  70                 foreach ($arr_drop as $item) {
  71                         Item::deleteForUser(['id' => $item], $uid);
  72                 }
  73
  74                 $json = ['success' => 1];
  75                 System::jsonExit($json);
  76         }
  77
  78         Hook::callAll('post_local_start', $_REQUEST);
  79
  80         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  81
  82         $api_source = $_REQUEST['api_source'] ?? false;
  83
  84         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  85
  86         $return_path = $_REQUEST['return'] ?? '';
  87         $preview = intval($_REQUEST['preview'] ?? 0);
  88
  89         /*
  90          * Check for doubly-submitted posts, and reject duplicates
  91          * Note that we have to ignore previews, otherwise nothing will post
  92          * after it's been previewed
  93          */
  94         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  95                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  96                         Logger::info('item post: duplicate post');
  97                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  98                 } else {
  99                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
 100                 }
 101         }
 102
 103         // Is this a reply to something?
 104         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
 105         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 106
 107         $toplevel_item = null;
 108         $parent_user = null;
 109
 110         $objecttype = null;
 111         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 112         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 113
 114         if ($toplevel_item_id || $thr_parent_uri) {
 115                 if ($toplevel_item_id) {
 116                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 117                 } elseif ($thr_parent_uri) {
 118                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 119                 }
 120
 121                 // if this isn't the top-level parent of the conversation, find it
 122                 if (DBA::isResult($toplevel_item)) {
 123                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 124                         $thr_parent_uri = $toplevel_item['uri'];
 125
 126                         if ($toplevel_item['gravity'] != GRAVITY_PARENT) {
 127                                 $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item['parent']]);
 128                         }
 129                 }
 130
 131                 if (!DBA::isResult($toplevel_item)) {
 132                         notice(DI::l10n()->t('Unable to locate original post.'));
 133                         if ($return_path) {
 134                                 DI::baseUrl()->redirect($return_path);
 135                         }
 136                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 137                 }
 138
 139                 // When commenting on a public post then store the post for the current user
 140                 // This enables interaction like starring and saving into folders
 141                 if ($toplevel_item['uid'] == 0) {
 142                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user());
 143                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 144                         if ($stored) {
 145                                 $toplevel_item = Item::selectFirst([], ['id' => $stored]);
 146                         }
 147                 }
 148
 149                 $toplevel_item_id = $toplevel_item['id'];
 150                 $parent_user = $toplevel_item['uid'];
 151
 152                 $objecttype = Activity\ObjectType::COMMENT;
 153         }
 154
 155         if ($toplevel_item_id) {
 156                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 157         }
 158
 159         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 160         $app         = strip_tags($_REQUEST['source'] ?? '');
 161         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 162         $object      = $_REQUEST['object'] ?? '';
 163
 164         // Don't use "defaults" here. It would turn 0 to 1
 165         if (!isset($_REQUEST['wall'])) {
 166                 $wall = 1;
 167         } else {
 168                 $wall = $_REQUEST['wall'];
 169         }
 170
 171         // Ensure that the user id in a thread always stay the same
 172         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 173                 $profile_uid = $parent_user;
 174         }
 175
 176         // Check for multiple posts with the same message id (when the post was created via API)
 177         if (($message_id != '') && ($profile_uid != 0)) {
 178                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 179                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 180                         return 0;
 181                 }
 182         }
 183
 184         // Allow commenting if it is an answer to a public post
 185         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 186
 187         // Now check that valid personal details have been provided
 188         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 189                 notice(DI::l10n()->t('Permission denied.'));
 190                 if ($return_path) {
 191                         DI::baseUrl()->redirect($return_path);
 192                 }
 193
 194                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 195         }
 196
 197         // Init post instance
 198         $orig_post = null;
 199
 200         // is this an edited post?
 201         if ($post_id > 0) {
 202                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 203         }
 204
 205         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 206
 207         if (!DBA::isResult($user) && !$toplevel_item_id) {
 208                 return 0;
 209         }
 210
 211         $categories = '';
 212         $postopts = '';
 213         $emailcc = '';
 214         $body = $_REQUEST['body'] ?? '';
 215         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 216
 217         // If we have a speparate attachment, we need to add it to the body.
 218         if (!empty($has_attachment)) {
 219                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 220                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 221                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 222
 223                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 224                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 225
 226                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 227                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 228                 $attachment = [
 229                         'type'   => $attachment_type,
 230                         'title'  => $attachment_title,
 231                         'text'   => $attachment_text,
 232                         'url'    => $attachment_url,
 233                 ];
 234
 235                 if (!empty($attachment_img_src)) {
 236                         $attachment['images'] = [
 237                                 0 => [
 238                                         'src'    => $attachment_img_src,
 239                                         'width'  => $attachment_img_width,
 240                                         'height' => $attachment_img_height
 241                                 ]
 242                         ];
 243                 }
 244
 245                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 246                 $body .= $att_bbcode;
 247         }
 248
 249         // Convert links with empty descriptions to links without an explicit description
 250         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 251
 252         if (!empty($orig_post)) {
 253                 $str_group_allow   = $orig_post['allow_gid'];
 254                 $str_contact_allow = $orig_post['allow_cid'];
 255                 $str_group_deny    = $orig_post['deny_gid'];
 256                 $str_contact_deny  = $orig_post['deny_cid'];
 257                 $location          = $orig_post['location'];
 258                 $coord             = $orig_post['coord'];
 259                 $verb              = $orig_post['verb'];
 260                 $objecttype        = $orig_post['object-type'];
 261                 $app               = $orig_post['app'];
 262                 $categories        = $orig_post['file'] ?? '';
 263                 $title             = trim($_REQUEST['title'] ?? '');
 264                 $body              = trim($body);
 265                 $private           = $orig_post['private'];
 266                 $pubmail_enabled   = $orig_post['pubmail'];
 267                 $network           = $orig_post['network'];
 268                 $guid              = $orig_post['guid'];
 269                 $extid             = $orig_post['extid'];
 270         } else {
 271                 $str_contact_allow = '';
 272                 $str_group_allow   = '';
 273                 $str_contact_deny  = '';
 274                 $str_group_deny    = '';
 275
 276                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 277                         $aclFormatter = DI::aclFormatter();
 278                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 279                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 280                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 281                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 282                 }
 283
 284                 $title             = trim($_REQUEST['title']    ?? '');
 285                 $location          = trim($_REQUEST['location'] ?? '');
 286                 $coord             = trim($_REQUEST['coord']    ?? '');
 287                 $verb              = trim($_REQUEST['verb']     ?? '');
 288                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 289                 $body              = trim($body);
 290                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 291                 $guid              = System::createUUID();
 292
 293                 $postopts = $_REQUEST['postopts'] ?? '';
 294
 295                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 296                         $private = Item::PRIVATE;
 297                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 298                         $private = Item::UNLISTED;
 299                 } else {
 300                         $private = Item::PUBLIC;
 301                 }
 302
 303                 // If this is a comment, set the permissions from the parent.
 304
 305                 if ($toplevel_item) {
 306                         // for non native networks use the network of the original post as network of the item
 307                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 308                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 309                                 && ($network == "")) {
 310                                 $network = $toplevel_item['network'];
 311                         }
 312
 313                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 314                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 315                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 316                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 317                         $private           = $toplevel_item['private'];
 318
 319                         $wall              = $toplevel_item['wall'];
 320                 }
 321
 322                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 323
 324                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 325                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 326                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 327                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 328                         }
 329                 }
 330
 331                 if (!strlen($body)) {
 332                         if ($preview) {
 333                                 System::jsonExit(['preview' => '']);
 334                         }
 335
 336                         notice(DI::l10n()->t('Empty post discarded.'));
 337                         if ($return_path) {
 338                                 DI::baseUrl()->redirect($return_path);
 339                         }
 340
 341                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 342                 }
 343         }
 344
 345         if (!empty($categories)) {
 346                 // get the "fileas" tags for this post
 347                 $filedas = FileTag::fileToArray($categories);
 348         }
 349
 350         // save old and new categories, so we can determine what needs to be deleted from pconfig
 351         $categories_old = $categories;
 352         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 353         $categories_new = $categories;
 354
 355         if (!empty($filedas) && is_array($filedas)) {
 356                 // append the fileas stuff to the new categories list
 357                 $categories .= FileTag::arrayToFile($filedas);
 358         }
 359
 360         // get contact info for poster
 361
 362         $author = null;
 363         $self   = false;
 364         $contact_id = 0;
 365
 366         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 367                 $self = true;
 368                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 369         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 370                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 371         }
 372
 373         if (DBA::isResult($author)) {
 374                 $contact_id = $author['id'];
 375         }
 376
 377         // get contact info for owner
 378         if ($profile_uid == local_user() || $allow_comment) {
 379                 $contact_record = $author ?: [];
 380         } else {
 381                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 382         }
 383
 384         // Look for any tags and linkify them
 385         $inform   = '';
 386         $private_forum = false;
 387         $private_id = null;
 388         $only_to_forum = false;
 389         $forum_contact = [];
 390
 391         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 392                 $tags = BBCode::getTags($body);
 393
 394                 $tagged = [];
 395
 396                 foreach ($tags as $tag) {
 397                         $tag_type = substr($tag, 0, 1);
 398
 399                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 400                                 continue;
 401                         }
 402
 403                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 404                          * Robert Johnson should be first in the $tags array
 405                          */
 406                         foreach ($tagged as $nextTag) {
 407                                 if (stristr($nextTag, $tag . ' ')) {
 408                                         continue 2;
 409                                 }
 410                         }
 411
 412                         $success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 413                         if ($success['replaced']) {
 414                                 $tagged[] = $tag;
 415                         }
 416                         // When the forum is private or the forum is addressed with a "!" make the post private
 417                         if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 418                                 $private_forum = $success['contact']['prv'];
 419                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 420                                 $private_id = $success['contact']['id'];
 421                                 $forum_contact = $success['contact'];
 422                         } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 423                                 $private_forum = false;
 424                                 $only_to_forum = true;
 425                                 $private_id = $success['contact']['id'];
 426                                 $forum_contact = $success['contact'];
 427                         }
 428                 }
 429
 430                 return $body;
 431         });
 432
 433         $original_contact_id = $contact_id;
 434
 435         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 436                 // we tagged a forum in a top level post. Now we change the post
 437                 $private = $private_forum;
 438
 439                 $str_group_allow = '';
 440                 $str_contact_deny = '';
 441                 $str_group_deny = '';
 442                 if ($private_forum) {
 443                         $str_contact_allow = '<' . $private_id . '>';
 444                 } else {
 445                         $str_contact_allow = '';
 446                 }
 447                 $contact_id = $private_id;
 448                 $contact_record = $forum_contact;
 449                 $_REQUEST['origin'] = false;
 450                 $wall = 0;
 451         }
 452
 453         /*
 454          * When a photo was uploaded into the message using the (profile wall) ajax
 455          * uploader, The permissions are initially set to disallow anybody but the
 456          * owner from seeing it. This is because the permissions may not yet have been
 457          * set for the post. If it's private, the photo permissions should be set
 458          * appropriately. But we didn't know the final permissions on the post until
 459          * now. So now we'll look for links of uploaded messages that are in the
 460          * post and set them to the same permissions as the post itself.
 461          */
 462
 463         $match = null;
 464
 465         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 466                 $objecttype = Activity\ObjectType::IMAGE;
 467         }
 468
 469         /*
 470          * Next link in any attachment references we find in the post.
 471          */
 472         $match = false;
 473
 474         /// @todo these lines should be moved to Model/Attach (Once it exists)
 475         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 476                 $attaches = $match[1];
 477                 if (count($attaches)) {
 478                         foreach ($attaches as $attach) {
 479                                 // Ensure to only modify attachments that you own
 480                                 $srch = '<' . intval($original_contact_id) . '>';
 481
 482                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 483                                                 'id' => $attach];
 484                                 if (!Attach::exists($condition)) {
 485                                         continue;
 486                                 }
 487
 488                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 489                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 490                                 $condition = ['id' => $attach];
 491                                 Attach::update($fields, $condition);
 492                         }
 493                 }
 494         }
 495
 496         // embedded bookmark or attachment in post? set bookmark flag
 497
 498         $data = BBCode::getAttachmentData($body);
 499         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 500                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 501                 $posttype = Item::PT_PAGE;
 502                 $objecttype =  Activity\ObjectType::BOOKMARK;
 503         }
 504
 505         $body = DI::bbCodeVideo()->transform($body);
 506
 507         $body = BBCode::scaleExternalImages($body);
 508
 509         // Setting the object type if not defined before
 510         if (!$objecttype) {
 511                 $objecttype = Activity\ObjectType::NOTE; // Default value
 512                 $objectdata = BBCode::getAttachedData($body);
 513
 514                 if ($objectdata["type"] == "link") {
 515                         $objecttype = Activity\ObjectType::BOOKMARK;
 516                 } elseif ($objectdata["type"] == "video") {
 517                         $objecttype = Activity\ObjectType::VIDEO;
 518                 } elseif ($objectdata["type"] == "photo") {
 519                         $objecttype = Activity\ObjectType::IMAGE;
 520                 }
 521
 522         }
 523
 524         $attachments = '';
 525         $match = false;
 526
 527         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 528                 foreach ($match[2] as $mtch) {
 529                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 530                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 531                         if ($attachment !== false) {
 532                                 if (strlen($attachments)) {
 533                                         $attachments .= ',';
 534                                 }
 535                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 536                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 537                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 538                         }
 539                         $body = str_replace($match[1],'',$body);
 540                 }
 541         }
 542
 543         if (!strlen($verb)) {
 544                 $verb = Activity::POST;
 545         }
 546
 547         if ($network == "") {
 548                 $network = Protocol::DFRN;
 549         }
 550
 551         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 552
 553         // even if the post arrived via API we are considering that it
 554         // originated on this site by default for determining relayability.
 555
 556         // Don't use "defaults" here. It would turn 0 to 1
 557         if (!isset($_REQUEST['origin'])) {
 558                 $origin = 1;
 559         } else {
 560                 $origin = $_REQUEST['origin'];
 561         }
 562
 563         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 564
 565         // Fallback so that we alway have a parent uri
 566         if (!$thr_parent_uri || !$toplevel_item_id) {
 567                 $thr_parent_uri = $uri;
 568         }
 569
 570         $datarray = [];
 571         $datarray['uid']           = $profile_uid;
 572         $datarray['wall']          = $wall;
 573         $datarray['gravity']       = $gravity;
 574         $datarray['network']       = $network;
 575         $datarray['contact-id']    = $contact_id;
 576         $datarray['owner-name']    = $contact_record['name'] ?? '';
 577         $datarray['owner-link']    = $contact_record['url'] ?? '';
 578         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 579         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 580         $datarray['author-name']   = $author['name'];
 581         $datarray['author-link']   = $author['url'];
 582         $datarray['author-avatar'] = $author['thumb'];
 583         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 584         $datarray['created']       = DateTimeFormat::utcNow();
 585         $datarray['edited']        = DateTimeFormat::utcNow();
 586         $datarray['commented']     = DateTimeFormat::utcNow();
 587         $datarray['received']      = DateTimeFormat::utcNow();
 588         $datarray['changed']       = DateTimeFormat::utcNow();
 589         $datarray['extid']         = $extid;
 590         $datarray['guid']          = $guid;
 591         $datarray['uri']           = $uri;
 592         $datarray['title']         = $title;
 593         $datarray['body']          = $body;
 594         $datarray['app']           = $app;
 595         $datarray['location']      = $location;
 596         $datarray['coord']         = $coord;
 597         $datarray['file']          = $categories;
 598         $datarray['inform']        = $inform;
 599         $datarray['verb']          = $verb;
 600         $datarray['post-type']     = $posttype;
 601         $datarray['object-type']   = $objecttype;
 602         $datarray['allow_cid']     = $str_contact_allow;
 603         $datarray['allow_gid']     = $str_group_allow;
 604         $datarray['deny_cid']      = $str_contact_deny;
 605         $datarray['deny_gid']      = $str_group_deny;
 606         $datarray['private']       = $private;
 607         $datarray['pubmail']       = $pubmail_enabled;
 608         $datarray['attach']        = $attachments;
 609
 610         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 611         $datarray['parent-uri']    = $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' => $datarray['parent-uri']]);
 633         if (DBA::isResult($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         // Insert an item entry for UID=0 for global entries.
 811         // We now do it in the background to save some time.
 812         // This is important in interactive environments like the frontend or the API.
 813         // We don't fork a new process since this is done anyway with the following command
 814         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 815
 816         // When we are doing some forum posting via ! we have to start the notifier manually.
 817         // These kind of posts don't initiate the notifier call in the item class.
 818         if ($only_to_forum) {
 819                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 820         }
 821
 822         Logger::info('post_complete');
 823
 824         if ($api_source) {
 825                 return $post_id;
 826         }
 827
 828         item_post_return(DI::baseUrl(), $api_source, $return_path);
 829         // NOTREACHED
 830 }
 831
 832 function item_post_return($baseurl, $api_source, $return_path)
 833 {
 834         if ($api_source) {
 835                 return;
 836         }
 837
 838         if ($return_path) {
 839                 DI::baseUrl()->redirect($return_path);
 840         }
 841
 842         $json = ['success' => 1];
 843         if (!empty($_REQUEST['jsreload'])) {
 844                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 845         }
 846
 847         Logger::info('post_json', ['json' => $json]);
 848
 849         System::jsonExit($json);
 850 }
 851
 852 function item_content(App $a)
 853 {
 854         if (!Session::isAuthenticated()) {
 855                 return;
 856         }
 857
 858         $o = '';
 859
 860         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 861                 if (DI::mode()->isAjax()) {
 862                         Item::deleteForUser(['id' => $a->argv[2]], local_user());
 863                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 864                         System::jsonExit([intval($a->argv[2]), local_user()]);
 865                 } else {
 866                         if (!empty($a->argv[3])) {
 867                                 $o = drop_item($a->argv[2], $a->argv[3]);
 868                         }
 869                         else {
 870                                 $o = drop_item($a->argv[2]);
 871                         }
 872                 }
 873         }
 874
 875         return $o;
 876 }
 877
 878 /**
 879  * @param int    $id
 880  * @param string $return
 881  * @return string
 882  * @throws HTTPException\InternalServerErrorException
 883  */
 884 function drop_item(int $id, string $return = '')
 885 {
 886         // locate item to be deleted
 887         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 888         $item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 889
 890         if (!DBA::isResult($item)) {
 891                 notice(DI::l10n()->t('Item not found.'));
 892                 DI::baseUrl()->redirect('network');
 893         }
 894
 895         if ($item['deleted']) {
 896                 return '';
 897         }
 898
 899         $contact_id = 0;
 900
 901         // check if logged in user is either the author or owner of this item
 902         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 903                 $contact_id = $item['contact-id'];
 904         }
 905
 906         if ((local_user() == $item['uid']) || $contact_id) {
 907                 if (!empty($item['parent'])) {
 908                         $parentitem = Item::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 909                 }
 910
 911                 // delete the item
 912                 Item::deleteForUser(['id' => $item['id']], local_user());
 913
 914                 $return_url = hex2bin($return);
 915
 916                 // removes update_* from return_url to ignore Ajax refresh
 917                 $return_url = str_replace("update_", "", $return_url);
 918
 919                 // Check if delete a comment
 920                 if ($item['gravity'] == GRAVITY_COMMENT) {
 921                         // Return to parent guid
 922                         if (!empty($parentitem)) {
 923                                 DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 924                                 //NOTREACHED
 925                         } // In case something goes wrong
 926                         else {
 927                                 DI::baseUrl()->redirect('network');
 928                                 //NOTREACHED
 929                         }
 930                 } else {
 931                         // if unknown location or deleting top level post called from display
 932                         if (empty($return_url) || strpos($return_url, 'display') !== false) {
 933                                 DI::baseUrl()->redirect('network');
 934                                 //NOTREACHED
 935                         } else {
 936                                 DI::baseUrl()->redirect($return_url);
 937                                 //NOTREACHED
 938                         }
 939                 }
 940         } else {
 941                 notice(DI::l10n()->t('Permission denied.'));
 942                 DI::baseUrl()->redirect('display/' . $item['guid']);
 943                 //NOTREACHED
 944         }
 945
 946         return '';
 947 }