mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, 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\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\ItemURI;
  49 use Friendica\Model\Notification;
  50 use Friendica\Model\Photo;
  51 use Friendica\Model\Post;
  52 use Friendica\Model\Tag;
  53 use Friendica\Model\User;
  54 use Friendica\Network\HTTPException;
  55 use Friendica\Object\EMail\ItemCCEMail;
  56 use Friendica\Protocol\Activity;
  57 use Friendica\Protocol\Diaspora;
  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         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($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                 notice(DI::l10n()->t('Permission denied.'));
 185                 if ($return_path) {
 186                         DI::baseUrl()->redirect($return_path);
 187                 }
 188
 189                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 190         }
 191
 192         // Init post instance
 193         $orig_post = null;
 194
 195         // is this an edited post?
 196         if ($post_id > 0) {
 197                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 198         }
 199
 200         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 201         if (!DBA::isResult($user) && !$toplevel_item_id) {
 202                 return 0;
 203         }
 204
 205         $categories = '';
 206         $postopts = '';
 207         $emailcc = '';
 208         $body = $_REQUEST['body'] ?? '';
 209         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 210
 211         // If we have a speparate attachment, we need to add it to the body.
 212         if (!empty($has_attachment)) {
 213                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 214                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 215                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 216
 217                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 218                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 219
 220                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 221                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 222
 223                 // Fetch the basic attachment data
 224                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 225                 unset($attachment['keywords']);
 226
 227                 // Overwrite the basic data with possible changes from the frontend
 228                 $attachment['type'] = $attachment_type;
 229                 $attachment['title'] = $attachment_title;
 230                 $attachment['text'] = $attachment_text;
 231                 $attachment['url'] = $attachment_url;
 232
 233                 if (!empty($attachment_img_src)) {
 234                         $attachment['images'] = [
 235                                 0 => [
 236                                         'src'    => $attachment_img_src,
 237                                         'width'  => $attachment_img_width,
 238                                         'height' => $attachment_img_height
 239                                 ]
 240                         ];
 241                 } else {
 242                         unset($attachment['images']);
 243                 }
 244
 245                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 246                 $body .= $att_bbcode;
 247         }
 248
 249         // Convert links with empty descriptions to links without an explicit description
 250         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 251
 252         if (!empty($orig_post)) {
 253                 $str_group_allow   = $orig_post['allow_gid'];
 254                 $str_contact_allow = $orig_post['allow_cid'];
 255                 $str_group_deny    = $orig_post['deny_gid'];
 256                 $str_contact_deny  = $orig_post['deny_cid'];
 257                 $location          = $orig_post['location'];
 258                 $coord             = $orig_post['coord'];
 259                 $verb              = $orig_post['verb'];
 260                 $objecttype        = $orig_post['object-type'];
 261                 $app               = $orig_post['app'];
 262                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 263                 $title             = trim($_REQUEST['title'] ?? '');
 264                 $body              = trim($body);
 265                 $private           = $orig_post['private'];
 266                 $pubmail_enabled   = $orig_post['pubmail'];
 267                 $network           = $orig_post['network'];
 268                 $guid              = $orig_post['guid'];
 269                 $extid             = $orig_post['extid'];
 270         } else {
 271                 $aclFormatter = DI::aclFormatter();
 272                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 273                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 274                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 275                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 276
 277                 $visibility = $_REQUEST['visibility'] ?? '';
 278                 if ($visibility === 'public') {
 279                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 280                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 281                 } else if ($visibility === 'custom') {
 282                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 283                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 284                         // See https://github.com/friendica/friendica/issues/9672
 285                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 286                 }
 287
 288                 $title             = trim($_REQUEST['title']    ?? '');
 289                 $location          = trim($_REQUEST['location'] ?? '');
 290                 $coord             = trim($_REQUEST['coord']    ?? '');
 291                 $verb              = trim($_REQUEST['verb']     ?? '');
 292                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 293                 $body              = trim($body);
 294                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 295                 $guid              = System::createUUID();
 296
 297                 $postopts = $_REQUEST['postopts'] ?? '';
 298
 299                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 300                         $private = Item::PRIVATE;
 301                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 302                         $private = Item::UNLISTED;
 303                 } else {
 304                         $private = Item::PUBLIC;
 305                 }
 306
 307                 // If this is a comment, set the permissions from the parent.
 308
 309                 if ($toplevel_item) {
 310                         // for non native networks use the network of the original post as network of the item
 311                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 312                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 313                                 && ($network == "")) {
 314                                 $network = $toplevel_item['network'];
 315                         }
 316
 317                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 318                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 319                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 320                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 321                         $private           = $toplevel_item['private'];
 322
 323                         $wall              = $toplevel_item['wall'];
 324                 }
 325
 326                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 327
 328                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 329                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 330                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 331                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 332                         }
 333                 }
 334
 335                 if (!strlen($body)) {
 336                         if ($preview) {
 337                                 System::jsonExit(['preview' => '']);
 338                         }
 339
 340                         notice(DI::l10n()->t('Empty post discarded.'));
 341                         if ($return_path) {
 342                                 DI::baseUrl()->redirect($return_path);
 343                         }
 344
 345                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 346                 }
 347         }
 348
 349         if (!empty($categories)) {
 350                 // get the "fileas" tags for this post
 351                 $filedas = FileTag::fileToArray($categories);
 352         }
 353
 354         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 355
 356         if (!empty($filedas) && is_array($filedas)) {
 357                 // append the fileas stuff to the new categories list
 358                 $categories .= FileTag::arrayToFile($filedas);
 359         }
 360
 361         // get contact info for poster
 362
 363         $author = null;
 364         $self   = false;
 365         $contact_id = 0;
 366
 367         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 368                 $self = true;
 369                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 370         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 371                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 372         }
 373
 374         if (DBA::isResult($author)) {
 375                 $contact_id = $author['id'];
 376         }
 377
 378         // get contact info for owner
 379         if ($profile_uid == local_user() || $allow_comment) {
 380                 $contact_record = $author ?: [];
 381         } else {
 382                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 383         }
 384
 385         // Look for any tags and linkify them
 386         $inform   = '';
 387         $private_forum = false;
 388         $private_id = null;
 389         $only_to_forum = false;
 390         $forum_contact = [];
 391
 392         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 393                 $tags = BBCode::getTags($body);
 394
 395                 $tagged = [];
 396
 397                 foreach ($tags as $tag) {
 398                         $tag_type = substr($tag, 0, 1);
 399
 400                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 401                                 continue;
 402                         }
 403
 404                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 405                          * Robert Johnson should be first in the $tags array
 406                          */
 407                         foreach ($tagged as $nextTag) {
 408                                 if (stristr($nextTag, $tag . ' ')) {
 409                                         continue 2;
 410                                 }
 411                         }
 412
 413                         $success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 414                         if ($success['replaced']) {
 415                                 $tagged[] = $tag;
 416                         }
 417                         // When the forum is private or the forum is addressed with a "!" make the post private
 418                         if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 419                                 $private_forum = $success['contact']['prv'];
 420                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 421                                 $private_id = $success['contact']['id'];
 422                                 $forum_contact = $success['contact'];
 423                         } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 424                                 $private_forum = false;
 425                                 $only_to_forum = true;
 426                                 $private_id = $success['contact']['id'];
 427                                 $forum_contact = $success['contact'];
 428                         }
 429                 }
 430
 431                 return $body;
 432         });
 433
 434         $original_contact_id = $contact_id;
 435
 436         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 437                 // we tagged a forum in a top level post. Now we change the post
 438                 $private = $private_forum;
 439
 440                 $str_group_allow = '';
 441                 $str_contact_deny = '';
 442                 $str_group_deny = '';
 443                 if ($private_forum) {
 444                         $str_contact_allow = '<' . $private_id . '>';
 445                 } else {
 446                         $str_contact_allow = '';
 447                 }
 448                 $contact_id = $private_id;
 449                 $contact_record = $forum_contact;
 450                 $_REQUEST['origin'] = false;
 451                 $wall = 0;
 452         }
 453
 454         /*
 455          * When a photo was uploaded into the message using the (profile wall) ajax
 456          * uploader, The permissions are initially set to disallow anybody but the
 457          * owner from seeing it. This is because the permissions may not yet have been
 458          * set for the post. If it's private, the photo permissions should be set
 459          * appropriately. But we didn't know the final permissions on the post until
 460          * now. So now we'll look for links of uploaded messages that are in the
 461          * post and set them to the same permissions as the post itself.
 462          */
 463
 464         $match = null;
 465
 466         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 467                 $objecttype = Activity\ObjectType::IMAGE;
 468         }
 469
 470         /*
 471          * Next link in any attachment references we find in the post.
 472          */
 473         $match = [];
 474
 475         /// @todo these lines should be moved to Model/Attach (Once it exists)
 476         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 477                 $attaches = $match[1];
 478                 if (count($attaches)) {
 479                         foreach ($attaches as $attach) {
 480                                 // Ensure to only modify attachments that you own
 481                                 $srch = '<' . intval($original_contact_id) . '>';
 482
 483                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 484                                                 'id' => $attach];
 485                                 if (!Attach::exists($condition)) {
 486                                         continue;
 487                                 }
 488
 489                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 490                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 491                                 $condition = ['id' => $attach];
 492                                 Attach::update($fields, $condition);
 493                         }
 494                 }
 495         }
 496
 497         // embedded bookmark or attachment in post? set bookmark flag
 498
 499         $data = BBCode::getAttachmentData($body);
 500         $match = [];
 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 = [];
 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         $uri = Item::newURI($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['object']        = $object;
 616
 617         $datarray["uri-id"]        = ItemURI::getIdByURI($datarray["uri"]);
 618
 619         /*
 620          * These fields are for the convenience of addons...
 621          * 'self' if true indicates the owner is posting on their own wall
 622          * If parent is 0 it is a top-level post.
 623          */
 624         $datarray['parent']        = $toplevel_item_id;
 625         $datarray['self']          = $self;
 626
 627         // This triggers posts via API and the mirror functions
 628         $datarray['api_source'] = $api_source;
 629
 630         // This field is for storing the raw conversation data
 631         $datarray['protocol'] = Conversation::PARCEL_DIRECT;
 632         $datarray['direction'] = Conversation::PUSH;
 633
 634         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 635         if (DBA::isResult($conversation)) {
 636                 if ($conversation['conversation-uri'] != '') {
 637                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 638                 }
 639                 if ($conversation['conversation-href'] != '') {
 640                         $datarray['conversation-href'] = $conversation['conversation-href'];
 641                 }
 642         }
 643
 644         if ($orig_post) {
 645                 $datarray['edit'] = true;
 646         } else {
 647                 // If this was a share, add missing data here
 648                 $datarray = Item::addShareDataFromOriginal($datarray);
 649
 650                 $datarray['edit'] = false;
 651         }
 652
 653         // Check for hashtags in the body and repair or add hashtag links
 654         if ($preview || $orig_post) {
 655                 $datarray['body'] = Item::setHashtags($datarray['body']);
 656         }
 657
 658         // preview mode - prepare the body for display and send it via json
 659         if ($preview) {
 660                 // We set the datarray ID to -1 because in preview mode the dataray
 661                 // doesn't have an ID.
 662                 $datarray["id"] = -1;
 663                 $datarray["uri-id"] = -1;
 664                 $datarray["author-network"] = Protocol::DFRN;
 665
 666                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 667
 668                 System::jsonExit(['preview' => $o]);
 669         }
 670
 671         Hook::callAll('post_local',$datarray);
 672
 673         if (!empty($datarray['cancel'])) {
 674                 Logger::info('mod_item: post cancelled by addon.');
 675                 if ($return_path) {
 676                         DI::baseUrl()->redirect($return_path);
 677                 }
 678
 679                 $json = ['cancel' => 1];
 680                 if (!empty($_REQUEST['jsreload'])) {
 681                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 682                 }
 683
 684                 System::jsonExit($json);
 685         }
 686
 687         if ($orig_post) {
 688                 // Fill the cache field
 689                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 690                 Item::putInCache($datarray);
 691
 692                 $fields = [
 693                         'title' => $datarray['title'],
 694                         'body' => $datarray['body'],
 695                         'attach' => $datarray['attach'],
 696                         'file' => $datarray['file'],
 697                         'rendered-html' => $datarray['rendered-html'],
 698                         'rendered-hash' => $datarray['rendered-hash'],
 699                         'edited' => DateTimeFormat::utcNow(),
 700                         'changed' => DateTimeFormat::utcNow()];
 701
 702                 Item::update($fields, ['id' => $post_id]);
 703
 704                 if ($return_path) {
 705                         DI::baseUrl()->redirect($return_path);
 706                 }
 707
 708                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 709         }
 710
 711         unset($datarray['edit']);
 712         unset($datarray['self']);
 713         unset($datarray['api_source']);
 714
 715         if ($origin) {
 716                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 717                 if (!empty($signed)) {
 718                         $datarray['diaspora_signed_text'] = json_encode($signed);
 719                 }
 720         }
 721
 722         $post_id = Item::insert($datarray);
 723
 724         if (!$post_id) {
 725                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 726                 if ($return_path) {
 727                         DI::baseUrl()->redirect($return_path);
 728                 }
 729
 730                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 731         }
 732
 733         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 734
 735         if (!DBA::isResult($datarray)) {
 736                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 737                 if ($return_path) {
 738                         DI::baseUrl()->redirect($return_path);
 739                 }
 740
 741                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 742         }
 743
 744         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 745
 746         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 747                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 748         }
 749
 750         // These notifications are sent if someone else is commenting other your wall
 751         if ($contact_record != $author) {
 752                 if ($toplevel_item_id) {
 753                         notification([
 754                                 'type'  => Notification\Type::COMMENT,
 755                                 'otype' => Notification\ObjectType::ITEM,
 756                                 'verb'  => Activity::POST,
 757                                 'uid'   => $profile_uid,
 758                                 'cid'   => $datarray['author-id'],
 759                                 'item'  => $datarray,
 760                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 761                         ]);
 762                 } elseif (empty($forum_contact)) {
 763                         notification([
 764                                 'type'  => Notification\Type::WALL,
 765                                 'otype' => Notification\ObjectType::ITEM,
 766                                 'verb'  => Activity::POST,
 767                                 'uid'   => $profile_uid,
 768                                 'cid'   => $datarray['author-id'],
 769                                 'item'  => $datarray,
 770                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 771                         ]);
 772                 }
 773         }
 774
 775         Hook::callAll('post_local_end', $datarray);
 776
 777         if (strlen($emailcc) && $profile_uid == local_user()) {
 778                 $recipients = explode(',', $emailcc);
 779                 if (count($recipients)) {
 780                         foreach ($recipients as $recipient) {
 781                                 $address = trim($recipient);
 782                                 if (!strlen($address)) {
 783                                         continue;
 784                                 }
 785                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 786                                         $datarray, $address, $author['thumb'] ?? ''));
 787                         }
 788                 }
 789         }
 790
 791         // When we are doing some forum posting via ! we have to start the notifier manually.
 792         // These kind of posts don't initiate the notifier call in the item class.
 793         if ($only_to_forum) {
 794                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, (int)$datarray['uri-id'], (int)$datarray['uid']);
 795         }
 796
 797         Logger::info('post_complete');
 798
 799         if ($api_source) {
 800                 return $post_id;
 801         }
 802
 803         item_post_return(DI::baseUrl(), $api_source, $return_path);
 804         // NOTREACHED
 805 }
 806
 807 function item_post_return($baseurl, $api_source, $return_path)
 808 {
 809         if ($api_source) {
 810                 return;
 811         }
 812
 813         if ($return_path) {
 814                 DI::baseUrl()->redirect($return_path);
 815         }
 816
 817         $json = ['success' => 1];
 818         if (!empty($_REQUEST['jsreload'])) {
 819                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 820         }
 821
 822         Logger::info('post_json', ['json' => $json]);
 823
 824         System::jsonExit($json);
 825 }
 826
 827 function item_content(App $a)
 828 {
 829         if (!Session::isAuthenticated()) {
 830                 throw new HTTPException\UnauthorizedException();
 831         }
 832
 833         $args = DI::args();
 834
 835         if (!$args->has(3)) {
 836                 throw new HTTPException\BadRequestException();
 837         }
 838
 839         $o = '';
 840         switch ($args->get(1)) {
 841                 case 'drop':
 842                         if (DI::mode()->isAjax()) {
 843                                 Item::deleteForUser(['id' => $args->get(2)], local_user());
 844                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 845                                 System::jsonExit([intval($args->get(2)), local_user()]);
 846                         } else {
 847                                 if (!empty($args->get(3))) {
 848                                         $o = drop_item($args->get(2), $args->get(3));
 849                                 } else {
 850                                         $o = drop_item($args->get(2));
 851                                 }
 852                         }
 853                         break;
 854                 case 'block':
 855                         $item = Post::selectFirstForUser(local_user(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 856                         if (empty($item['author-id'])) {
 857                                 throw new HTTPException\NotFoundException('Item not found');
 858                         }
 859
 860                         Contact\User::setBlocked($item['author-id'], local_user(), true);
 861
 862                         if (DI::mode()->isAjax()) {
 863                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 864                                 System::jsonExit([intval($args->get(2)), local_user()]);
 865                         } else {
 866                                 item_redirect_after_action($item, $args->get(3));
 867                         }
 868                         break;
 869         }
 870
 871         return $o;
 872 }
 873
 874 /**
 875  * @param int    $id
 876  * @param string $return
 877  * @return string
 878  * @throws HTTPException\InternalServerErrorException
 879  */
 880 function drop_item(int $id, string $return = '')
 881 {
 882         // locate item to be deleted
 883         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 884         $item = Post::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 885
 886         if (!DBA::isResult($item)) {
 887                 notice(DI::l10n()->t('Item not found.'));
 888                 DI::baseUrl()->redirect('network');
 889         }
 890
 891         if ($item['deleted']) {
 892                 return '';
 893         }
 894
 895         $contact_id = 0;
 896
 897         // check if logged in user is either the author or owner of this item
 898         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 899                 $contact_id = $item['contact-id'];
 900         }
 901
 902         if ((local_user() == $item['uid']) || $contact_id) {
 903                 // delete the item
 904                 Item::deleteForUser(['id' => $item['id']], local_user());
 905
 906                 item_redirect_after_action($item, $return);
 907         } else {
 908                 notice(DI::l10n()->t('Permission denied.'));
 909                 DI::baseUrl()->redirect('display/' . $item['guid']);
 910                 //NOTREACHED
 911         }
 912
 913         return '';
 914 }
 915
 916 function item_redirect_after_action($item, $returnUrlHex)
 917 {
 918         $return_url = hex2bin($returnUrlHex);
 919
 920         // removes update_* from return_url to ignore Ajax refresh
 921         $return_url = str_replace("update_", "", $return_url);
 922
 923         // Check if delete a comment
 924         if ($item['gravity'] == GRAVITY_COMMENT) {
 925                 if (!empty($item['parent'])) {
 926                         $parentitem = Post::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 927                 }
 928
 929                 // Return to parent guid
 930                 if (!empty($parentitem)) {
 931                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 932                         //NOTREACHED
 933                 } // In case something goes wrong
 934                 else {
 935                         DI::baseUrl()->redirect('network');
 936                         //NOTREACHED
 937                 }
 938         } else {
 939                 // if unknown location or deleting top level post called from display
 940                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 941                         DI::baseUrl()->redirect('network');
 942                         //NOTREACHED
 943                 } else {
 944                         DI::baseUrl()->redirect($return_url);
 945                         //NOTREACHED
 946                 }
 947         }
 948 }