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\Text\BBCode;
  33 use Friendica\Core\Hook;
  34 use Friendica\Core\Logger;
  35 use Friendica\Core\Protocol;
  36 use Friendica\Core\Session;
  37 use Friendica\Core\System;
  38 use Friendica\Core\Worker;
  39 use Friendica\Database\DBA;
  40 use Friendica\DI;
  41 use Friendica\Model\Attach;
  42 use Friendica\Model\Contact;
  43 use Friendica\Model\Conversation;
  44 use Friendica\Model\FileTag;
  45 use Friendica\Model\Item;
  46 use Friendica\Model\Notify\Type;
  47 use Friendica\Model\Photo;
  48 use Friendica\Model\Tag;
  49 use Friendica\Network\HTTPException;
  50 use Friendica\Object\EMail\ItemCCEMail;
  51 use Friendica\Protocol\Activity;
  52 use Friendica\Protocol\Diaspora;
  53 use Friendica\Util\DateTimeFormat;
  54 use Friendica\Util\Security;
  55 use Friendica\Util\Strings;
  56 use Friendica\Worker\Delivery;
  57
  58 require_once __DIR__ . '/../include/items.php';
  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(',', $_REQUEST['dropitems']);
  69                 drop_items($arr_drop);
  70                 $json = ['success' => 1];
  71                 System::jsonExit($json);
  72         }
  73
  74         Hook::callAll('post_local_start', $_REQUEST);
  75
  76         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  77
  78         $api_source = $_REQUEST['api_source'] ?? false;
  79
  80         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  81
  82         $return_path = $_REQUEST['return'] ?? '';
  83         $preview = intval($_REQUEST['preview'] ?? 0);
  84
  85         /*
  86          * Check for doubly-submitted posts, and reject duplicates
  87          * Note that we have to ignore previews, otherwise nothing will post
  88          * after it's been previewed
  89          */
  90         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  91                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  92                         Logger::info('item post: duplicate post');
  93                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  94                 } else {
  95                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  96                 }
  97         }
  98
  99         // Is this a reply to something?
 100         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
 101         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 102
 103         $thread_parent_uriid = 0;
 104         $thread_parent_contact = null;
 105
 106         $toplevel_item = null;
 107         $parent_user = null;
 108
 109         $parent_contact = 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 ($toplevel_item_id || $thr_parent_uri) {
 116                 if ($toplevel_item_id) {
 117                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 118                 } elseif ($thr_parent_uri) {
 119                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 120                 }
 121
 122                 // if this isn't the top-level parent of the conversation, find it
 123                 if (DBA::isResult($toplevel_item)) {
 124                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 125                         $thread_parent_uriid = $toplevel_item['uri-id'];
 126                         $thr_parent_uri = $toplevel_item['uri'];
 127                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 128
 129                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 130                                 $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item['parent']]);
 131                         }
 132                 }
 133
 134                 if (!DBA::isResult($toplevel_item)) {
 135                         notice(DI::l10n()->t('Unable to locate original post.'));
 136                         if ($return_path) {
 137                                 DI::baseUrl()->redirect($return_path);
 138                         }
 139                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 140                 }
 141
 142                 $toplevel_item_id = $toplevel_item['id'];
 143                 $parent_user = $toplevel_item['uid'];
 144
 145                 $objecttype = Activity\ObjectType::COMMENT;
 146         }
 147
 148         if ($toplevel_item_id) {
 149                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 150         }
 151
 152         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 153         $app         = strip_tags($_REQUEST['source'] ?? '');
 154         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 155         $object      = $_REQUEST['object'] ?? '';
 156
 157         // Don't use "defaults" here. It would turn 0 to 1
 158         if (!isset($_REQUEST['wall'])) {
 159                 $wall = 1;
 160         } else {
 161                 $wall = $_REQUEST['wall'];
 162         }
 163
 164         // Ensure that the user id in a thread always stay the same
 165         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 166                 $profile_uid = $parent_user;
 167         }
 168
 169         // Check for multiple posts with the same message id (when the post was created via API)
 170         if (($message_id != '') && ($profile_uid != 0)) {
 171                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 172                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 173                         return 0;
 174                 }
 175         }
 176
 177         // Allow commenting if it is an answer to a public post
 178         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 179
 180         // Now check that valid personal details have been provided
 181         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 182                 notice(DI::l10n()->t('Permission denied.'));
 183                 if ($return_path) {
 184                         DI::baseUrl()->redirect($return_path);
 185                 }
 186
 187                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 188         }
 189
 190         // Init post instance
 191         $orig_post = null;
 192
 193         // is this an edited post?
 194         if ($post_id > 0) {
 195                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 196         }
 197
 198         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 199
 200         if (!DBA::isResult($user) && !$toplevel_item_id) {
 201                 return 0;
 202         }
 203
 204         $categories = '';
 205         $postopts = '';
 206         $emailcc = '';
 207         $body = $_REQUEST['body'] ?? '';
 208         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 209
 210         // If we have a speparate attachment, we need to add it to the body.
 211         if (!empty($has_attachment)) {
 212                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 213                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 214                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 215
 216                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 217                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 218
 219                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 220                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 221                 $attachment = [
 222                         'type'   => $attachment_type,
 223                         'title'  => $attachment_title,
 224                         'text'   => $attachment_text,
 225                         'url'    => $attachment_url,
 226                 ];
 227
 228                 if (!empty($attachment_img_src)) {
 229                         $attachment['images'] = [
 230                                 0 => [
 231                                         'src'    => $attachment_img_src,
 232                                         'width'  => $attachment_img_width,
 233                                         'height' => $attachment_img_height
 234                                 ]
 235                         ];
 236                 }
 237
 238                 $att_bbcode = add_page_info_data($attachment);
 239                 $body .= $att_bbcode;
 240         }
 241
 242         // Convert links with empty descriptions to links without an explicit description
 243         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 244
 245         if (!empty($orig_post)) {
 246                 $str_group_allow   = $orig_post['allow_gid'];
 247                 $str_contact_allow = $orig_post['allow_cid'];
 248                 $str_group_deny    = $orig_post['deny_gid'];
 249                 $str_contact_deny  = $orig_post['deny_cid'];
 250                 $location          = $orig_post['location'];
 251                 $coord             = $orig_post['coord'];
 252                 $verb              = $orig_post['verb'];
 253                 $objecttype        = $orig_post['object-type'];
 254                 $app               = $orig_post['app'];
 255                 $categories        = $orig_post['file'];
 256                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 257                 $body              = trim($body);
 258                 $private           = $orig_post['private'];
 259                 $pubmail_enabled   = $orig_post['pubmail'];
 260                 $network           = $orig_post['network'];
 261                 $guid              = $orig_post['guid'];
 262                 $extid             = $orig_post['extid'];
 263         } else {
 264                 $str_contact_allow = '';
 265                 $str_group_allow   = '';
 266                 $str_contact_deny  = '';
 267                 $str_group_deny    = '';
 268
 269                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 270                         $aclFormatter = DI::aclFormatter();
 271                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 272                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 273                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 274                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 275                 }
 276
 277                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 278                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 279                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 280                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 281                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 282                 $body              = trim($body);
 283                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 284                 $guid              = System::createUUID();
 285
 286                 $postopts = $_REQUEST['postopts'] ?? '';
 287
 288                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 289                         $private = Item::PRIVATE;
 290                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 291                         $private = Item::UNLISTED;
 292                 } else {
 293                         $private = Item::PUBLIC;
 294                 }
 295
 296                 // If this is a comment, set the permissions from the parent.
 297
 298                 if ($toplevel_item) {
 299                         // for non native networks use the network of the original post as network of the item
 300                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 301                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 302                                 && ($network == "")) {
 303                                 $network = $toplevel_item['network'];
 304                         }
 305
 306                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 307                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 308                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 309                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 310                         $private           = $toplevel_item['private'];
 311
 312                         $wall              = $toplevel_item['wall'];
 313                 }
 314
 315                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 316
 317                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 318                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 319                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 320                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 321                         }
 322                 }
 323
 324                 if (!strlen($body)) {
 325                         if ($preview) {
 326                                 System::jsonExit(['preview' => '']);
 327                         }
 328
 329                         info(DI::l10n()->t('Empty post discarded.'));
 330                         if ($return_path) {
 331                                 DI::baseUrl()->redirect($return_path);
 332                         }
 333
 334                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 335                 }
 336         }
 337
 338         if (!empty($categories)) {
 339                 // get the "fileas" tags for this post
 340                 $filedas = FileTag::fileToArray($categories);
 341         }
 342
 343         // save old and new categories, so we can determine what needs to be deleted from pconfig
 344         $categories_old = $categories;
 345         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 346         $categories_new = $categories;
 347
 348         if (!empty($filedas) && is_array($filedas)) {
 349                 // append the fileas stuff to the new categories list
 350                 $categories .= FileTag::arrayToFile($filedas);
 351         }
 352
 353         // get contact info for poster
 354
 355         $author = null;
 356         $self   = false;
 357         $contact_id = 0;
 358
 359         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 360                 $self = true;
 361                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 362         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 363                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 364         }
 365
 366         if (DBA::isResult($author)) {
 367                 $contact_id = $author['id'];
 368         }
 369
 370         // get contact info for owner
 371         if ($profile_uid == local_user() || $allow_comment) {
 372                 $contact_record = $author;
 373         } else {
 374                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 375         }
 376
 377         // Look for any tags and linkify them
 378         $str_tags = '';
 379         $inform   = '';
 380
 381         $tags = BBCode::getTags($body);
 382
 383         if ($thread_parent_uriid && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 384                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_uriid);
 385         }
 386
 387         $tagged = [];
 388
 389         $private_forum = false;
 390         $only_to_forum = false;
 391         $forum_contact = [];
 392
 393         if (count($tags)) {
 394                 foreach ($tags as $tag) {
 395                         $tag_type = substr($tag, 0, 1);
 396
 397                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 398                                 continue;
 399                         }
 400
 401                         /*
 402                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 403                          * Robert Johnson should be first in the $tags array
 404                          */
 405                         $fullnametagged = false;
 406                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 407                         foreach ($tagged as $nextTag) {
 408                                 if (stristr($nextTag, $tag . ' ')) {
 409                                         $fullnametagged = true;
 410                                         break;
 411                                 }
 412                         }
 413                         if ($fullnametagged) {
 414                                 continue;
 415                         }
 416
 417                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 418                         if ($success['replaced']) {
 419                                 $tagged[] = $tag;
 420                         }
 421                         // When the forum is private or the forum is addressed with a "!" make the post private
 422                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]))) {
 423                                 $private_forum = $success['contact']['prv'];
 424                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 425                                 $private_id = $success['contact']['id'];
 426                                 $forum_contact = $success['contact'];
 427                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 428                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 429                                 $private_forum = false;
 430                                 $only_to_forum = true;
 431                                 $private_id = $success['contact']['id'];
 432                                 $forum_contact = $success['contact'];
 433                         }
 434                 }
 435         }
 436
 437         $original_contact_id = $contact_id;
 438
 439         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 440                 // we tagged a forum in a top level post. Now we change the post
 441                 $private = $private_forum;
 442
 443                 $str_group_allow = '';
 444                 $str_contact_deny = '';
 445                 $str_group_deny = '';
 446                 if ($private_forum) {
 447                         $str_contact_allow = '<' . $private_id . '>';
 448                 } else {
 449                         $str_contact_allow = '';
 450                 }
 451                 $contact_id = $private_id;
 452                 $contact_record = $forum_contact;
 453                 $_REQUEST['origin'] = false;
 454                 $wall = 0;
 455         }
 456
 457         /*
 458          * When a photo was uploaded into the message using the (profile wall) ajax
 459          * uploader, The permissions are initially set to disallow anybody but the
 460          * owner from seeing it. This is because the permissions may not yet have been
 461          * set for the post. If it's private, the photo permissions should be set
 462          * appropriately. But we didn't know the final permissions on the post until
 463          * now. So now we'll look for links of uploaded messages that are in the
 464          * post and set them to the same permissions as the post itself.
 465          */
 466
 467         $match = null;
 468
 469         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 470                 $objecttype = Activity\ObjectType::IMAGE;
 471         }
 472
 473         /*
 474          * Next link in any attachment references we find in the post.
 475          */
 476         $match = false;
 477
 478         /// @todo these lines should be moved to Model/Attach (Once it exists)
 479         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 480                 $attaches = $match[1];
 481                 if (count($attaches)) {
 482                         foreach ($attaches as $attach) {
 483                                 // Ensure to only modify attachments that you own
 484                                 $srch = '<' . intval($original_contact_id) . '>';
 485
 486                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 487                                                 'id' => $attach];
 488                                 if (!Attach::exists($condition)) {
 489                                         continue;
 490                                 }
 491
 492                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 493                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 494                                 $condition = ['id' => $attach];
 495                                 Attach::update($fields, $condition);
 496                         }
 497                 }
 498         }
 499
 500         // embedded bookmark or attachment in post? set bookmark flag
 501
 502         $data = BBCode::getAttachmentData($body);
 503         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 504                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 505                 $posttype = Item::PT_PAGE;
 506                 $objecttype =  Activity\ObjectType::BOOKMARK;
 507         }
 508
 509         $body = DI::bbCodeVideo()->transform($body);
 510
 511         $body = BBCode::scaleExternalImages($body);
 512
 513         // Setting the object type if not defined before
 514         if (!$objecttype) {
 515                 $objecttype = Activity\ObjectType::NOTE; // Default value
 516                 $objectdata = BBCode::getAttachedData($body);
 517
 518                 if ($objectdata["type"] == "link") {
 519                         $objecttype = Activity\ObjectType::BOOKMARK;
 520                 } elseif ($objectdata["type"] == "video") {
 521                         $objecttype = Activity\ObjectType::VIDEO;
 522                 } elseif ($objectdata["type"] == "photo") {
 523                         $objecttype = Activity\ObjectType::IMAGE;
 524                 }
 525
 526         }
 527
 528         $attachments = '';
 529         $match = false;
 530
 531         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 532                 foreach ($match[2] as $mtch) {
 533                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 534                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 535                         if ($attachment !== false) {
 536                                 if (strlen($attachments)) {
 537                                         $attachments .= ',';
 538                                 }
 539                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 540                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 541                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 542                         }
 543                         $body = str_replace($match[1],'',$body);
 544                 }
 545         }
 546
 547         if (!strlen($verb)) {
 548                 $verb = Activity::POST;
 549         }
 550
 551         if ($network == "") {
 552                 $network = Protocol::DFRN;
 553         }
 554
 555         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 556
 557         // even if the post arrived via API we are considering that it
 558         // originated on this site by default for determining relayability.
 559
 560         // Don't use "defaults" here. It would turn 0 to 1
 561         if (!isset($_REQUEST['origin'])) {
 562                 $origin = 1;
 563         } else {
 564                 $origin = $_REQUEST['origin'];
 565         }
 566
 567         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 568
 569         // Fallback so that we alway have a parent uri
 570         if (!$thr_parent_uri || !$toplevel_item_id) {
 571                 $thr_parent_uri = $uri;
 572         }
 573
 574         $datarray = [];
 575         $datarray['uid']           = $profile_uid;
 576         $datarray['wall']          = $wall;
 577         $datarray['gravity']       = $gravity;
 578         $datarray['network']       = $network;
 579         $datarray['contact-id']    = $contact_id;
 580         $datarray['owner-name']    = $contact_record['name'];
 581         $datarray['owner-link']    = $contact_record['url'];
 582         $datarray['owner-avatar']  = $contact_record['thumb'];
 583         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 584         $datarray['author-name']   = $author['name'];
 585         $datarray['author-link']   = $author['url'];
 586         $datarray['author-avatar'] = $author['thumb'];
 587         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 588         $datarray['created']       = DateTimeFormat::utcNow();
 589         $datarray['edited']        = DateTimeFormat::utcNow();
 590         $datarray['commented']     = DateTimeFormat::utcNow();
 591         $datarray['received']      = DateTimeFormat::utcNow();
 592         $datarray['changed']       = DateTimeFormat::utcNow();
 593         $datarray['extid']         = $extid;
 594         $datarray['guid']          = $guid;
 595         $datarray['uri']           = $uri;
 596         $datarray['title']         = $title;
 597         $datarray['body']          = $body;
 598         $datarray['app']           = $app;
 599         $datarray['location']      = $location;
 600         $datarray['coord']         = $coord;
 601         $datarray['tag']           = $str_tags;
 602         $datarray['file']          = $categories;
 603         $datarray['inform']        = $inform;
 604         $datarray['verb']          = $verb;
 605         $datarray['post-type']     = $posttype;
 606         $datarray['object-type']   = $objecttype;
 607         $datarray['allow_cid']     = $str_contact_allow;
 608         $datarray['allow_gid']     = $str_group_allow;
 609         $datarray['deny_cid']      = $str_contact_deny;
 610         $datarray['deny_gid']      = $str_group_deny;
 611         $datarray['private']       = $private;
 612         $datarray['pubmail']       = $pubmail_enabled;
 613         $datarray['attach']        = $attachments;
 614
 615         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 616         $datarray['parent-uri']    = $thr_parent_uri;
 617
 618         $datarray['postopts']      = $postopts;
 619         $datarray['origin']        = $origin;
 620         $datarray['moderated']     = false;
 621         $datarray['object']        = $object;
 622
 623         /*
 624          * These fields are for the convenience of addons...
 625          * 'self' if true indicates the owner is posting on their own wall
 626          * If parent is 0 it is a top-level post.
 627          */
 628         $datarray['parent']        = $toplevel_item_id;
 629         $datarray['self']          = $self;
 630
 631         // This triggers posts via API and the mirror functions
 632         $datarray['api_source'] = $api_source;
 633
 634         // This field is for storing the raw conversation data
 635         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 636
 637         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 638         if (DBA::isResult($conversation)) {
 639                 if ($conversation['conversation-uri'] != '') {
 640                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 641                 }
 642                 if ($conversation['conversation-href'] != '') {
 643                         $datarray['conversation-href'] = $conversation['conversation-href'];
 644                 }
 645         }
 646
 647         if ($orig_post) {
 648                 $datarray['edit'] = true;
 649         } else {
 650                 // If this was a share, add missing data here
 651                 $datarray = Item::addShareDataFromOriginal($datarray);
 652
 653                 $datarray['edit'] = false;
 654         }
 655
 656         // Check for hashtags in the body and repair or add hashtag links
 657         if ($preview || $orig_post) {
 658                 Item::setHashtags($datarray);
 659         }
 660
 661         // preview mode - prepare the body for display and send it via json
 662         if ($preview) {
 663                 // We set the datarray ID to -1 because in preview mode the dataray
 664                 // doesn't have an ID.
 665                 $datarray["id"] = -1;
 666                 $datarray["item_id"] = -1;
 667                 $datarray["author-network"] = Protocol::DFRN;
 668
 669                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 670
 671                 System::jsonExit(['preview' => $o]);
 672         }
 673
 674         Hook::callAll('post_local',$datarray);
 675
 676         if (!empty($datarray['cancel'])) {
 677                 Logger::info('mod_item: post cancelled by addon.');
 678                 if ($return_path) {
 679                         DI::baseUrl()->redirect($return_path);
 680                 }
 681
 682                 $json = ['cancel' => 1];
 683                 if (!empty($_REQUEST['jsreload'])) {
 684                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 685                 }
 686
 687                 System::jsonExit($json);
 688         }
 689
 690         if ($orig_post) {
 691                 // Fill the cache field
 692                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 693                 Item::putInCache($datarray);
 694
 695                 $fields = [
 696                         'title' => $datarray['title'],
 697                         'body' => $datarray['body'],
 698                         'tag' => $datarray['tag'],
 699                         'attach' => $datarray['attach'],
 700                         'file' => $datarray['file'],
 701                         'rendered-html' => $datarray['rendered-html'],
 702                         'rendered-hash' => $datarray['rendered-hash'],
 703                         'edited' => DateTimeFormat::utcNow(),
 704                         'changed' => DateTimeFormat::utcNow()];
 705
 706                 Item::update($fields, ['id' => $post_id]);
 707
 708                 // update filetags in pconfig
 709                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 710
 711                 info(DI::l10n()->t('Post updated.'));
 712                 if ($return_path) {
 713                         DI::baseUrl()->redirect($return_path);
 714                 }
 715
 716                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 717         }
 718
 719         unset($datarray['edit']);
 720         unset($datarray['self']);
 721         unset($datarray['api_source']);
 722
 723         if ($origin) {
 724                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 725                 if (!empty($signed)) {
 726                         $datarray['diaspora_signed_text'] = json_encode($signed);
 727                 }
 728         }
 729
 730         $post_id = Item::insert($datarray);
 731
 732         if (!$post_id) {
 733                 info(DI::l10n()->t('Item wasn\'t stored.'));
 734                 if ($return_path) {
 735                         DI::baseUrl()->redirect($return_path);
 736                 }
 737
 738                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 739         }
 740
 741         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 742
 743         if (!DBA::isResult($datarray)) {
 744                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 745                 if ($return_path) {
 746                         DI::baseUrl()->redirect($return_path);
 747                 }
 748
 749                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 750         }
 751
 752         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 753
 754         // update filetags in pconfig
 755         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 756
 757         // These notifications are sent if someone else is commenting other your wall
 758         if ($toplevel_item_id) {
 759                 if ($contact_record != $author) {
 760                         notification([
 761                                 'type'         => Type::COMMENT,
 762                                 'notify_flags' => $user['notify-flags'],
 763                                 'language'     => $user['language'],
 764                                 'to_name'      => $user['username'],
 765                                 'to_email'     => $user['email'],
 766                                 'uid'          => $user['uid'],
 767                                 'item'         => $datarray,
 768                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 769                                 'source_name'  => $datarray['author-name'],
 770                                 'source_link'  => $datarray['author-link'],
 771                                 'source_photo' => $datarray['author-avatar'],
 772                                 'verb'         => Activity::POST,
 773                                 'otype'        => 'item',
 774                                 'parent'       => $toplevel_item_id,
 775                                 'parent_uri'   => $toplevel_item['uri']
 776                         ]);
 777                 }
 778         } else {
 779                 if (($contact_record != $author) && !count($forum_contact)) {
 780                         notification([
 781                                 'type'         => Type::WALL,
 782                                 'notify_flags' => $user['notify-flags'],
 783                                 'language'     => $user['language'],
 784                                 'to_name'      => $user['username'],
 785                                 'to_email'     => $user['email'],
 786                                 'uid'          => $user['uid'],
 787                                 'item'         => $datarray,
 788                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 789                                 'source_name'  => $datarray['author-name'],
 790                                 'source_link'  => $datarray['author-link'],
 791                                 'source_photo' => $datarray['author-avatar'],
 792                                 'verb'         => Activity::POST,
 793                                 'otype'        => 'item'
 794                         ]);
 795                 }
 796         }
 797
 798         Hook::callAll('post_local_end', $datarray);
 799
 800         if (strlen($emailcc) && $profile_uid == local_user()) {
 801                 $recipients = explode(',', $emailcc);
 802                 if (count($recipients)) {
 803                         foreach ($recipients as $recipient) {
 804                                 $address = trim($recipient);
 805                                 if (!strlen($address)) {
 806                                         continue;
 807                                 }
 808                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 809                                         $datarray, $address, $author['thumb'] ?? ''));
 810                         }
 811                 }
 812         }
 813
 814         // Insert an item entry for UID=0 for global entries.
 815         // We now do it in the background to save some time.
 816         // This is important in interactive environments like the frontend or the API.
 817         // We don't fork a new process since this is done anyway with the following command
 818         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 819
 820         // When we are doing some forum posting via ! we have to start the notifier manually.
 821         // These kind of posts don't initiate the notifier call in the item class.
 822         if ($only_to_forum) {
 823                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 824         }
 825
 826         Logger::info('post_complete');
 827
 828         if ($api_source) {
 829                 return $post_id;
 830         }
 831
 832         info(DI::l10n()->t('Post published.'));
 833         item_post_return(DI::baseUrl(), $api_source, $return_path);
 834         // NOTREACHED
 835 }
 836
 837 function item_post_return($baseurl, $api_source, $return_path)
 838 {
 839         if ($api_source) {
 840                 return;
 841         }
 842
 843         if ($return_path) {
 844                 DI::baseUrl()->redirect($return_path);
 845         }
 846
 847         $json = ['success' => 1];
 848         if (!empty($_REQUEST['jsreload'])) {
 849                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 850         }
 851
 852         Logger::info('post_json', ['json' => $json]);
 853
 854         System::jsonExit($json);
 855 }
 856
 857 function item_content(App $a)
 858 {
 859         if (!Session::isAuthenticated()) {
 860                 return;
 861         }
 862
 863         $o = '';
 864
 865         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 866                 if (DI::mode()->isAjax()) {
 867                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 868                 } else {
 869                         if (!empty($a->argv[3])) {
 870                                 $o = drop_item($a->argv[2], $a->argv[3]);
 871                         }
 872                         else {
 873                                 $o = drop_item($a->argv[2]);
 874                         }
 875                 }
 876
 877                 if (DI::mode()->isAjax()) {
 878                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 879                         System::jsonExit([intval($a->argv[2]), intval($o)]);
 880                 }
 881         }
 882
 883         return $o;
 884 }
 885
 886 /**
 887  * This function removes the tag $tag from the text $body and replaces it with
 888  * the appropriate link.
 889  *
 890  * @param App     $a
 891  * @param string  $body     the text to replace the tag in
 892  * @param string  $inform   a comma-seperated string containing everybody to inform
 893  * @param string  $str_tags string to add the tag to
 894  * @param integer $profile_uid
 895  * @param string  $tag      the tag to replace
 896  * @param string  $network  The network of the post
 897  *
 898  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 899  * @throws ImagickException
 900  * @throws HTTPException\InternalServerErrorException
 901  */
 902 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 903 {
 904         $replaced = false;
 905         $r = null;
 906
 907         //is it a person tag?
 908         if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 909                 $tag_type = substr($tag, 0, 1);
 910                 //is it already replaced?
 911                 if (strpos($tag, '[url=')) {
 912                         //append tag to str_tags
 913                         if (!stristr($str_tags, $tag)) {
 914                                 if (strlen($str_tags)) {
 915                                         $str_tags .= ',';
 916                                 }
 917                                 $str_tags .= $tag;
 918                         }
 919
 920                         // Checking for the alias that is used for OStatus
 921                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 922                         if (preg_match($pattern, $tag, $matches)) {
 923                                 $data = Contact::getDetailsByURL($matches[1]);
 924
 925                                 if ($data["alias"] != "") {
 926                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 927
 928                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 929                                                 if (strlen($str_tags)) {
 930                                                         $str_tags .= ',';
 931                                                 }
 932
 933                                                 $str_tags .= $newtag;
 934                                         }
 935                                 }
 936                         }
 937
 938                         return $replaced;
 939                 }
 940
 941                 //get the person's name
 942                 $name = substr($tag, 1);
 943
 944                 // Sometimes the tag detection doesn't seem to work right
 945                 // This is some workaround
 946                 $nameparts = explode(" ", $name);
 947                 $name = $nameparts[0];
 948
 949                 // Try to detect the contact in various ways
 950                 if (strpos($name, 'http://')) {
 951                         // At first we have to ensure that the contact exists
 952                         Contact::getIdForURL($name);
 953
 954                         // Now we should have something
 955                         $contact = Contact::getDetailsByURL($name);
 956                 } elseif (strpos($name, '@')) {
 957                         // This function automatically probes when no entry was found
 958                         $contact = Contact::getDetailsByAddr($name);
 959                 } else {
 960                         $contact = false;
 961                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 962
 963                         if (strrpos($name, '+')) {
 964                                 // Is it in format @nick+number?
 965                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 966                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 967                         }
 968
 969                         // select someone by nick or attag in the current network
 970                         if (!DBA::isResult($contact) && ($network != "")) {
 971                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 972                                                 $name, $name, $network, $profile_uid];
 973                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 974                         }
 975
 976                         //select someone by name in the current network
 977                         if (!DBA::isResult($contact) && ($network != "")) {
 978                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 979                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 980                         }
 981
 982                         // select someone by nick or attag in any network
 983                         if (!DBA::isResult($contact)) {
 984                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 985                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 986                         }
 987
 988                         // select someone by name in any network
 989                         if (!DBA::isResult($contact)) {
 990                                 $condition = ['name' => $name, 'uid' => $profile_uid];
 991                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 992                         }
 993                 }
 994
 995                 // Check if $contact has been successfully loaded
 996                 if (DBA::isResult($contact)) {
 997                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
 998                                 $inform .= ',';
 999                         }
1000
1001                         if (isset($contact["id"])) {
1002                                 $inform .= 'cid:' . $contact["id"];
1003                         } elseif (isset($contact["notify"])) {
1004                                 $inform  .= $contact["notify"];
1005                         }
1006
1007                         $profile = $contact["url"];
1008                         $alias   = $contact["alias"];
1009                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1010                 }
1011
1012                 //if there is an url for this persons profile
1013                 if (isset($profile) && ($newname != "")) {
1014                         $replaced = true;
1015                         // create profile link
1016                         $profile = str_replace(',', '%2c', $profile);
1017                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1018                         $body = str_replace($tag_type . $name, $newtag, $body);
1019                         // append tag to str_tags
1020                         if (!stristr($str_tags, $newtag)) {
1021                                 if (strlen($str_tags)) {
1022                                         $str_tags .= ',';
1023                                 }
1024                                 $str_tags .= $newtag;
1025                         }
1026
1027                         /*
1028                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1029                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1030                          */
1031                         if (!empty($alias)) {
1032                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1033                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1034                                         if (strlen($str_tags)) {
1035                                                 $str_tags .= ',';
1036                                         }
1037                                         $str_tags .= $newtag;
1038                                 }
1039                         }
1040                 }
1041         }
1042
1043         return ['replaced' => $replaced, 'contact' => $contact];
1044 }
1045
1046 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_uriid)
1047 {
1048         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1049                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1050                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1051                         $contact = Tag::TAG_CHARACTER[Tag::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1052                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1053                                 $tags[] = $contact;
1054                         }
1055                 }
1056         } else {
1057                 $implicit_mentions = [
1058                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1059                 ];
1060
1061                 $parent_terms = Tag::getByURIId($thread_parent_uriid, [Tag::MENTION, Tag::IMPLICIT_MENTION]);
1062
1063                 foreach ($parent_terms as $parent_term) {
1064                         $implicit_mentions[$parent_term['url']] = $parent_term['name'];
1065                 }
1066
1067                 foreach ($implicit_mentions as $url => $label) {
1068                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1069                                 $tags[] = Tag::TAG_CHARACTER[Tag::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1070                         }
1071                 }
1072         }
1073
1074         return $tags;
1075 }