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\Pager;
  33 use Friendica\Content\Text\BBCode;
  34 use Friendica\Core\Hook;
  35 use Friendica\Core\Logger;
  36 use Friendica\Core\Protocol;
  37 use Friendica\Core\Session;
  38 use Friendica\Core\System;
  39 use Friendica\Core\Worker;
  40 use Friendica\Database\DBA;
  41 use Friendica\DI;
  42 use Friendica\Model\Attach;
  43 use Friendica\Model\Config\PConfig;
  44 use Friendica\Model\Contact;
  45 use Friendica\Model\Conversation;
  46 use Friendica\Model\FileTag;
  47 use Friendica\Model\Item;
  48 use Friendica\Model\Notify\Type;
  49 use Friendica\Model\Photo;
  50 use Friendica\Model\Term;
  51 use Friendica\Network\HTTPException;
  52 use Friendica\Object\EMail\ItemCCEMail;
  53 use Friendica\Protocol\Activity;
  54 use Friendica\Protocol\Diaspora;
  55 use Friendica\Util\DateTimeFormat;
  56 use Friendica\Util\Security;
  57 use Friendica\Util\Strings;
  58 use Friendica\Worker\Delivery;
  59
  60 require_once __DIR__ . '/../include/items.php';
  61
  62 function item_post(App $a) {
  63         if (!Session::isAuthenticated()) {
  64                 throw new HTTPException\ForbiddenException();
  65         }
  66
  67         $uid = local_user();
  68
  69         if (!empty($_REQUEST['dropitems'])) {
  70                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  71                 drop_items($arr_drop);
  72                 $json = ['success' => 1];
  73                 System::jsonExit($json);
  74         }
  75
  76         Hook::callAll('post_local_start', $_REQUEST);
  77
  78         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  79
  80         $api_source = $_REQUEST['api_source'] ?? false;
  81
  82         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  83
  84         $return_path = $_REQUEST['return'] ?? '';
  85         $preview = intval($_REQUEST['preview'] ?? 0);
  86
  87         /*
  88          * Check for doubly-submitted posts, and reject duplicates
  89          * Note that we have to ignore previews, otherwise nothing will post
  90          * after it's been previewed
  91          */
  92         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  93                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  94                         Logger::info('item post: duplicate post');
  95                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  96                 } else {
  97                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  98                 }
  99         }
 100
 101         // Is this a reply to something?
 102         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
 103         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 104
 105         $thread_parent_id = 0;
 106         $thread_parent_contact = null;
 107
 108         $toplevel_item = null;
 109         $parent_user = null;
 110
 111         $parent_contact = null;
 112
 113         $objecttype = null;
 114         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 115         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 116
 117         if ($toplevel_item_id || $thr_parent_uri) {
 118                 if ($toplevel_item_id) {
 119                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 120                 } elseif ($thr_parent_uri) {
 121                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 122                 }
 123
 124                 // if this isn't the top-level parent of the conversation, find it
 125                 if (DBA::isResult($toplevel_item)) {
 126                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 127                         $thread_parent_id = $toplevel_item['id'];
 128                         $thr_parent_uri = $toplevel_item['uri'];
 129                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 130
 131                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 132                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 133                         }
 134                 }
 135
 136                 if (!DBA::isResult($toplevel_item)) {
 137                         notice(DI::l10n()->t('Unable to locate original post.'));
 138                         if ($return_path) {
 139                                 DI::baseUrl()->redirect($return_path);
 140                         }
 141                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 142                 }
 143
 144                 $toplevel_item_id = $toplevel_item['id'];
 145                 $parent_user = $toplevel_item['uid'];
 146
 147                 $objecttype = Activity\ObjectType::COMMENT;
 148         }
 149
 150         if ($toplevel_item_id) {
 151                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 152         }
 153
 154         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 155         $app         = strip_tags($_REQUEST['source'] ?? '');
 156         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 157         $object      = $_REQUEST['object'] ?? '';
 158
 159         // Don't use "defaults" here. It would turn 0 to 1
 160         if (!isset($_REQUEST['wall'])) {
 161                 $wall = 1;
 162         } else {
 163                 $wall = $_REQUEST['wall'];
 164         }
 165
 166         // Ensure that the user id in a thread always stay the same
 167         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 168                 $profile_uid = $parent_user;
 169         }
 170
 171         // Check for multiple posts with the same message id (when the post was created via API)
 172         if (($message_id != '') && ($profile_uid != 0)) {
 173                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 174                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 175                         return 0;
 176                 }
 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 = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 198         }
 199
 200         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 201
 202         if (!DBA::isResult($user) && !$toplevel_item_id) {
 203                 return 0;
 204         }
 205
 206         $categories = '';
 207         $postopts = '';
 208         $emailcc = '';
 209         $body = $_REQUEST['body'] ?? '';
 210         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 211
 212         // If we have a speparate attachment, we need to add it to the body.
 213         if (!empty($has_attachment)) {
 214                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 215                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 216                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 217
 218                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 219                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 220
 221                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 222                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 223                 $attachment = [
 224                         'type'   => $attachment_type,
 225                         'title'  => $attachment_title,
 226                         'text'   => $attachment_text,
 227                         'url'    => $attachment_url,
 228                 ];
 229
 230                 if (!empty($attachment_img_src)) {
 231                         $attachment['images'] = [
 232                                 0 => [
 233                                         'src'    => $attachment_img_src,
 234                                         'width'  => $attachment_img_width,
 235                                         'height' => $attachment_img_height
 236                                 ]
 237                         ];
 238                 }
 239
 240                 $att_bbcode = add_page_info_data($attachment);
 241                 $body .= $att_bbcode;
 242         }
 243
 244         // Convert links with empty descriptions to links without an explicit description
 245         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 246
 247         if (!empty($orig_post)) {
 248                 $str_group_allow   = $orig_post['allow_gid'];
 249                 $str_contact_allow = $orig_post['allow_cid'];
 250                 $str_group_deny    = $orig_post['deny_gid'];
 251                 $str_contact_deny  = $orig_post['deny_cid'];
 252                 $location          = $orig_post['location'];
 253                 $coord             = $orig_post['coord'];
 254                 $verb              = $orig_post['verb'];
 255                 $objecttype        = $orig_post['object-type'];
 256                 $app               = $orig_post['app'];
 257                 $categories        = $orig_post['file'];
 258                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 259                 $body              = trim($body);
 260                 $private           = $orig_post['private'];
 261                 $pubmail_enabled   = $orig_post['pubmail'];
 262                 $network           = $orig_post['network'];
 263                 $guid              = $orig_post['guid'];
 264                 $extid             = $orig_post['extid'];
 265
 266         } else {
 267
 268                 /*
 269                  * if coming from the API and no privacy settings are set,
 270                  * use the user default permissions - as they won't have
 271                  * been supplied via a form.
 272                  */
 273                 if ($api_source
 274                         && !array_key_exists('contact_allow', $_REQUEST)
 275                         && !array_key_exists('group_allow', $_REQUEST)
 276                         && !array_key_exists('contact_deny', $_REQUEST)
 277                         && !array_key_exists('group_deny', $_REQUEST)) {
 278                         $str_group_allow   = $user['allow_gid'];
 279                         $str_contact_allow = $user['allow_cid'];
 280                         $str_group_deny    = $user['deny_gid'];
 281                         $str_contact_deny  = $user['deny_cid'];
 282                 } else {
 283                         // use the posted permissions
 284
 285                         $aclFormatter = DI::aclFormatter();
 286
 287                         $str_group_allow   = $aclFormatter->toString($_REQUEST['group_allow'] ?? '');
 288                         $str_contact_allow = $aclFormatter->toString($_REQUEST['contact_allow'] ?? '');
 289                         $str_group_deny    = $aclFormatter->toString($_REQUEST['group_deny'] ?? '');
 290                         $str_contact_deny  = $aclFormatter->toString($_REQUEST['contact_deny'] ?? '');
 291                 }
 292
 293                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 294                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 295                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 296                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 297                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 298                 $body              = trim($body);
 299                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 300                 $guid              = System::createUUID();
 301
 302                 $postopts = $_REQUEST['postopts'] ?? '';
 303
 304                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 305                         $private = Item::PRIVATE;
 306                 } elseif (PConfig::get($profile_uid, 'system', 'unlisted')) {
 307                         $private == Item::UNLISTED;
 308                 } else {
 309                         $private == Item::PUBLIC;
 310                 }
 311
 312                 // If this is a comment, set the permissions from the parent.
 313
 314                 if ($toplevel_item) {
 315                         // for non native networks use the network of the original post as network of the item
 316                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 317                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 318                                 && ($network == "")) {
 319                                 $network = $toplevel_item['network'];
 320                         }
 321
 322                         $str_contact_allow = $toplevel_item['allow_cid'];
 323                         $str_group_allow   = $toplevel_item['allow_gid'];
 324                         $str_contact_deny  = $toplevel_item['deny_cid'];
 325                         $str_group_deny    = $toplevel_item['deny_gid'];
 326                         $private           = $toplevel_item['private'];
 327
 328                         $wall              = $toplevel_item['wall'];
 329                 }
 330
 331                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 332
 333                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 334                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 335                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 336                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 337                         }
 338                 }
 339
 340                 if (!strlen($body)) {
 341                         if ($preview) {
 342                                 System::jsonExit(['preview' => '']);
 343                         }
 344
 345                         info(DI::l10n()->t('Empty post discarded.'));
 346                         if ($return_path) {
 347                                 DI::baseUrl()->redirect($return_path);
 348                         }
 349
 350                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 351                 }
 352         }
 353
 354         if (!empty($categories)) {
 355                 // get the "fileas" tags for this post
 356                 $filedas = FileTag::fileToArray($categories);
 357         }
 358
 359         // save old and new categories, so we can determine what needs to be deleted from pconfig
 360         $categories_old = $categories;
 361         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 362         $categories_new = $categories;
 363
 364         if (!empty($filedas) && is_array($filedas)) {
 365                 // append the fileas stuff to the new categories list
 366                 $categories .= FileTag::arrayToFile($filedas);
 367         }
 368
 369         // get contact info for poster
 370
 371         $author = null;
 372         $self   = false;
 373         $contact_id = 0;
 374
 375         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 376                 $self = true;
 377                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 378         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 379                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 380         }
 381
 382         if (DBA::isResult($author)) {
 383                 $contact_id = $author['id'];
 384         }
 385
 386         // get contact info for owner
 387         if ($profile_uid == local_user() || $allow_comment) {
 388                 $contact_record = $author;
 389         } else {
 390                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 391         }
 392
 393         // Look for any tags and linkify them
 394         $str_tags = '';
 395         $inform   = '';
 396
 397         $tags = BBCode::getTags($body);
 398
 399         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 400                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 401         }
 402
 403         $tagged = [];
 404
 405         $private_forum = false;
 406         $only_to_forum = false;
 407         $forum_contact = [];
 408
 409         if (count($tags)) {
 410                 foreach ($tags as $tag) {
 411                         $tag_type = substr($tag, 0, 1);
 412
 413                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 414                                 continue;
 415                         }
 416
 417                         /*
 418                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 419                          * Robert Johnson should be first in the $tags array
 420                          */
 421                         $fullnametagged = false;
 422                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 423                         foreach ($tagged as $nextTag) {
 424                                 if (stristr($nextTag, $tag . ' ')) {
 425                                         $fullnametagged = true;
 426                                         break;
 427                                 }
 428                         }
 429                         if ($fullnametagged) {
 430                                 continue;
 431                         }
 432
 433                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 434                         if ($success['replaced']) {
 435                                 $tagged[] = $tag;
 436                         }
 437                         // When the forum is private or the forum is addressed with a "!" make the post private
 438                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 439                                 $private_forum = $success['contact']['prv'];
 440                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 441                                 $private_id = $success['contact']['id'];
 442                                 $forum_contact = $success['contact'];
 443                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 444                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 445                                 $private_forum = false;
 446                                 $only_to_forum = true;
 447                                 $private_id = $success['contact']['id'];
 448                                 $forum_contact = $success['contact'];
 449                         }
 450                 }
 451         }
 452
 453         $original_contact_id = $contact_id;
 454
 455         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 456                 // we tagged a forum in a top level post. Now we change the post
 457                 $private = $private_forum;
 458
 459                 $str_group_allow = '';
 460                 $str_contact_deny = '';
 461                 $str_group_deny = '';
 462                 if ($private_forum) {
 463                         $str_contact_allow = '<' . $private_id . '>';
 464                 } else {
 465                         $str_contact_allow = '';
 466                 }
 467                 $contact_id = $private_id;
 468                 $contact_record = $forum_contact;
 469                 $_REQUEST['origin'] = false;
 470                 $wall = 0;
 471         }
 472
 473         /*
 474          * When a photo was uploaded into the message using the (profile wall) ajax
 475          * uploader, The permissions are initially set to disallow anybody but the
 476          * owner from seeing it. This is because the permissions may not yet have been
 477          * set for the post. If it's private, the photo permissions should be set
 478          * appropriately. But we didn't know the final permissions on the post until
 479          * now. So now we'll look for links of uploaded messages that are in the
 480          * post and set them to the same permissions as the post itself.
 481          */
 482
 483         $match = null;
 484
 485         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 486                 $objecttype = Activity\ObjectType::IMAGE;
 487         }
 488
 489         /*
 490          * Next link in any attachment references we find in the post.
 491          */
 492         $match = false;
 493
 494         /// @todo these lines should be moved to Model/Attach (Once it exists)
 495         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 496                 $attaches = $match[1];
 497                 if (count($attaches)) {
 498                         foreach ($attaches as $attach) {
 499                                 // Ensure to only modify attachments that you own
 500                                 $srch = '<' . intval($original_contact_id) . '>';
 501
 502                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 503                                                 'id' => $attach];
 504                                 if (!Attach::exists($condition)) {
 505                                         continue;
 506                                 }
 507
 508                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 509                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 510                                 $condition = ['id' => $attach];
 511                                 Attach::update($fields, $condition);
 512                         }
 513                 }
 514         }
 515
 516         // embedded bookmark or attachment in post? set bookmark flag
 517
 518         $data = BBCode::getAttachmentData($body);
 519         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 520                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 521                 $posttype = Item::PT_PAGE;
 522                 $objecttype =  Activity\ObjectType::BOOKMARK;
 523         }
 524
 525         $body = DI::bbCodeVideo()->transform($body);
 526
 527         $body = BBCode::scaleExternalImages($body);
 528
 529         // Setting the object type if not defined before
 530         if (!$objecttype) {
 531                 $objecttype = Activity\ObjectType::NOTE; // Default value
 532                 $objectdata = BBCode::getAttachedData($body);
 533
 534                 if ($objectdata["type"] == "link") {
 535                         $objecttype = Activity\ObjectType::BOOKMARK;
 536                 } elseif ($objectdata["type"] == "video") {
 537                         $objecttype = Activity\ObjectType::VIDEO;
 538                 } elseif ($objectdata["type"] == "photo") {
 539                         $objecttype = Activity\ObjectType::IMAGE;
 540                 }
 541
 542         }
 543
 544         $attachments = '';
 545         $match = false;
 546
 547         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 548                 foreach ($match[2] as $mtch) {
 549                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 550                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 551                         if ($attachment !== false) {
 552                                 if (strlen($attachments)) {
 553                                         $attachments .= ',';
 554                                 }
 555                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 556                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 557                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 558                         }
 559                         $body = str_replace($match[1],'',$body);
 560                 }
 561         }
 562
 563         if (!strlen($verb)) {
 564                 $verb = Activity::POST;
 565         }
 566
 567         if ($network == "") {
 568                 $network = Protocol::DFRN;
 569         }
 570
 571         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 572
 573         // even if the post arrived via API we are considering that it
 574         // originated on this site by default for determining relayability.
 575
 576         // Don't use "defaults" here. It would turn 0 to 1
 577         if (!isset($_REQUEST['origin'])) {
 578                 $origin = 1;
 579         } else {
 580                 $origin = $_REQUEST['origin'];
 581         }
 582
 583         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 584
 585         // Fallback so that we alway have a parent uri
 586         if (!$thr_parent_uri || !$toplevel_item_id) {
 587                 $thr_parent_uri = $uri;
 588         }
 589
 590         $datarray = [];
 591         $datarray['uid']           = $profile_uid;
 592         $datarray['wall']          = $wall;
 593         $datarray['gravity']       = $gravity;
 594         $datarray['network']       = $network;
 595         $datarray['contact-id']    = $contact_id;
 596         $datarray['owner-name']    = $contact_record['name'];
 597         $datarray['owner-link']    = $contact_record['url'];
 598         $datarray['owner-avatar']  = $contact_record['thumb'];
 599         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 600         $datarray['author-name']   = $author['name'];
 601         $datarray['author-link']   = $author['url'];
 602         $datarray['author-avatar'] = $author['thumb'];
 603         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 604         $datarray['created']       = DateTimeFormat::utcNow();
 605         $datarray['edited']        = DateTimeFormat::utcNow();
 606         $datarray['commented']     = DateTimeFormat::utcNow();
 607         $datarray['received']      = DateTimeFormat::utcNow();
 608         $datarray['changed']       = DateTimeFormat::utcNow();
 609         $datarray['extid']         = $extid;
 610         $datarray['guid']          = $guid;
 611         $datarray['uri']           = $uri;
 612         $datarray['title']         = $title;
 613         $datarray['body']          = $body;
 614         $datarray['app']           = $app;
 615         $datarray['location']      = $location;
 616         $datarray['coord']         = $coord;
 617         $datarray['tag']           = $str_tags;
 618         $datarray['file']          = $categories;
 619         $datarray['inform']        = $inform;
 620         $datarray['verb']          = $verb;
 621         $datarray['post-type']     = $posttype;
 622         $datarray['object-type']   = $objecttype;
 623         $datarray['allow_cid']     = $str_contact_allow;
 624         $datarray['allow_gid']     = $str_group_allow;
 625         $datarray['deny_cid']      = $str_contact_deny;
 626         $datarray['deny_gid']      = $str_group_deny;
 627         $datarray['private']       = $private;
 628         $datarray['pubmail']       = $pubmail_enabled;
 629         $datarray['attach']        = $attachments;
 630
 631         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 632         $datarray['parent-uri']    = $thr_parent_uri;
 633
 634         $datarray['postopts']      = $postopts;
 635         $datarray['origin']        = $origin;
 636         $datarray['moderated']     = false;
 637         $datarray['object']        = $object;
 638
 639         /*
 640          * These fields are for the convenience of addons...
 641          * 'self' if true indicates the owner is posting on their own wall
 642          * If parent is 0 it is a top-level post.
 643          */
 644         $datarray['parent']        = $toplevel_item_id;
 645         $datarray['self']          = $self;
 646
 647         // This triggers posts via API and the mirror functions
 648         $datarray['api_source'] = $api_source;
 649
 650         // This field is for storing the raw conversation data
 651         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 652
 653         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 654         if (DBA::isResult($conversation)) {
 655                 if ($conversation['conversation-uri'] != '') {
 656                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 657                 }
 658                 if ($conversation['conversation-href'] != '') {
 659                         $datarray['conversation-href'] = $conversation['conversation-href'];
 660                 }
 661         }
 662
 663         if ($orig_post) {
 664                 $datarray['edit'] = true;
 665         } else {
 666                 // If this was a share, add missing data here
 667                 $datarray = Item::addShareDataFromOriginal($datarray);
 668
 669                 $datarray['edit'] = false;
 670         }
 671
 672         // Check for hashtags in the body and repair or add hashtag links
 673         if ($preview || $orig_post) {
 674                 Item::setHashtags($datarray);
 675         }
 676
 677         // preview mode - prepare the body for display and send it via json
 678         if ($preview) {
 679                 // We set the datarray ID to -1 because in preview mode the dataray
 680                 // doesn't have an ID.
 681                 $datarray["id"] = -1;
 682                 $datarray["item_id"] = -1;
 683                 $datarray["author-network"] = Protocol::DFRN;
 684
 685                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 686
 687                 System::jsonExit(['preview' => $o]);
 688         }
 689
 690         Hook::callAll('post_local',$datarray);
 691
 692         if (!empty($datarray['cancel'])) {
 693                 Logger::info('mod_item: post cancelled by addon.');
 694                 if ($return_path) {
 695                         DI::baseUrl()->redirect($return_path);
 696                 }
 697
 698                 $json = ['cancel' => 1];
 699                 if (!empty($_REQUEST['jsreload'])) {
 700                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 701                 }
 702
 703                 System::jsonExit($json);
 704         }
 705
 706         if ($orig_post) {
 707                 // Fill the cache field
 708                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 709                 Item::putInCache($datarray);
 710
 711                 $fields = [
 712                         'title' => $datarray['title'],
 713                         'body' => $datarray['body'],
 714                         'tag' => $datarray['tag'],
 715                         'attach' => $datarray['attach'],
 716                         'file' => $datarray['file'],
 717                         'rendered-html' => $datarray['rendered-html'],
 718                         'rendered-hash' => $datarray['rendered-hash'],
 719                         'edited' => DateTimeFormat::utcNow(),
 720                         'changed' => DateTimeFormat::utcNow()];
 721
 722                 Item::update($fields, ['id' => $post_id]);
 723
 724                 // update filetags in pconfig
 725                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 726
 727                 info(DI::l10n()->t('Post updated.'));
 728                 if ($return_path) {
 729                         DI::baseUrl()->redirect($return_path);
 730                 }
 731
 732                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 733         }
 734
 735         unset($datarray['edit']);
 736         unset($datarray['self']);
 737         unset($datarray['api_source']);
 738
 739         if ($origin) {
 740                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 741                 if (!empty($signed)) {
 742                         $datarray['diaspora_signed_text'] = json_encode($signed);
 743                 }
 744         }
 745
 746         $post_id = Item::insert($datarray);
 747
 748         if (!$post_id) {
 749                 info(DI::l10n()->t('Item wasn\'t stored.'));
 750                 if ($return_path) {
 751                         DI::baseUrl()->redirect($return_path);
 752                 }
 753
 754                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 755         }
 756
 757         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 758
 759         if (!DBA::isResult($datarray)) {
 760                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 761                 if ($return_path) {
 762                         DI::baseUrl()->redirect($return_path);
 763                 }
 764
 765                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 766         }
 767
 768         // update filetags in pconfig
 769         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 770
 771         // These notifications are sent if someone else is commenting other your wall
 772         if ($toplevel_item_id) {
 773                 if ($contact_record != $author) {
 774                         notification([
 775                                 'type'         => Type::COMMENT,
 776                                 'notify_flags' => $user['notify-flags'],
 777                                 'language'     => $user['language'],
 778                                 'to_name'      => $user['username'],
 779                                 'to_email'     => $user['email'],
 780                                 'uid'          => $user['uid'],
 781                                 'item'         => $datarray,
 782                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 783                                 'source_name'  => $datarray['author-name'],
 784                                 'source_link'  => $datarray['author-link'],
 785                                 'source_photo' => $datarray['author-avatar'],
 786                                 'verb'         => Activity::POST,
 787                                 'otype'        => 'item',
 788                                 'parent'       => $toplevel_item_id,
 789                                 'parent_uri'   => $toplevel_item['uri']
 790                         ]);
 791                 }
 792         } else {
 793                 if (($contact_record != $author) && !count($forum_contact)) {
 794                         notification([
 795                                 'type'         => Type::WALL,
 796                                 'notify_flags' => $user['notify-flags'],
 797                                 'language'     => $user['language'],
 798                                 'to_name'      => $user['username'],
 799                                 'to_email'     => $user['email'],
 800                                 'uid'          => $user['uid'],
 801                                 'item'         => $datarray,
 802                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 803                                 'source_name'  => $datarray['author-name'],
 804                                 'source_link'  => $datarray['author-link'],
 805                                 'source_photo' => $datarray['author-avatar'],
 806                                 'verb'         => Activity::POST,
 807                                 'otype'        => 'item'
 808                         ]);
 809                 }
 810         }
 811
 812         Hook::callAll('post_local_end', $datarray);
 813
 814         if (strlen($emailcc) && $profile_uid == local_user()) {
 815                 $recipients = explode(',', $emailcc);
 816                 if (count($recipients)) {
 817                         foreach ($recipients as $recipient) {
 818                                 $address = trim($recipient);
 819                                 if (!strlen($address)) {
 820                                         continue;
 821                                 }
 822                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 823                                         $datarray, $address, $author['thumb'] ?? ''));
 824                         }
 825                 }
 826         }
 827
 828         // Insert an item entry for UID=0 for global entries.
 829         // We now do it in the background to save some time.
 830         // This is important in interactive environments like the frontend or the API.
 831         // We don't fork a new process since this is done anyway with the following command
 832         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 833
 834         // When we are doing some forum posting via ! we have to start the notifier manually.
 835         // These kind of posts don't initiate the notifier call in the item class.
 836         if ($only_to_forum) {
 837                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 838         }
 839
 840         Logger::info('post_complete');
 841
 842         if ($api_source) {
 843                 return $post_id;
 844         }
 845
 846         info(DI::l10n()->t('Post published.'));
 847         item_post_return(DI::baseUrl(), $api_source, $return_path);
 848         // NOTREACHED
 849 }
 850
 851 function item_post_return($baseurl, $api_source, $return_path)
 852 {
 853         if ($api_source) {
 854                 return;
 855         }
 856
 857         if ($return_path) {
 858                 DI::baseUrl()->redirect($return_path);
 859         }
 860
 861         $json = ['success' => 1];
 862         if (!empty($_REQUEST['jsreload'])) {
 863                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 864         }
 865
 866         Logger::info('post_json', ['json' => $json]);
 867
 868         System::jsonExit($json);
 869 }
 870
 871 function item_content(App $a)
 872 {
 873         if (!Session::isAuthenticated()) {
 874                 return;
 875         }
 876
 877         $o = '';
 878
 879         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 880                 if (DI::mode()->isAjax()) {
 881                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 882                 } else {
 883                         if (!empty($a->argv[3])) {
 884                                 $o = drop_item($a->argv[2], $a->argv[3]);
 885                         }
 886                         else {
 887                                 $o = drop_item($a->argv[2]);
 888                         }
 889                 }
 890
 891                 if (DI::mode()->isAjax()) {
 892                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 893                         System::jsonExit([intval($a->argv[2]), intval($o)]);
 894                 }
 895         }
 896
 897         return $o;
 898 }
 899
 900 /**
 901  * This function removes the tag $tag from the text $body and replaces it with
 902  * the appropriate link.
 903  *
 904  * @param App     $a
 905  * @param string  $body     the text to replace the tag in
 906  * @param string  $inform   a comma-seperated string containing everybody to inform
 907  * @param string  $str_tags string to add the tag to
 908  * @param integer $profile_uid
 909  * @param string  $tag      the tag to replace
 910  * @param string  $network  The network of the post
 911  *
 912  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 913  * @throws ImagickException
 914  * @throws HTTPException\InternalServerErrorException
 915  */
 916 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 917 {
 918         $replaced = false;
 919         $r = null;
 920
 921         //is it a person tag?
 922         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 923                 $tag_type = substr($tag, 0, 1);
 924                 //is it already replaced?
 925                 if (strpos($tag, '[url=')) {
 926                         //append tag to str_tags
 927                         if (!stristr($str_tags, $tag)) {
 928                                 if (strlen($str_tags)) {
 929                                         $str_tags .= ',';
 930                                 }
 931                                 $str_tags .= $tag;
 932                         }
 933
 934                         // Checking for the alias that is used for OStatus
 935                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 936                         if (preg_match($pattern, $tag, $matches)) {
 937                                 $data = Contact::getDetailsByURL($matches[1]);
 938
 939                                 if ($data["alias"] != "") {
 940                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 941
 942                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 943                                                 if (strlen($str_tags)) {
 944                                                         $str_tags .= ',';
 945                                                 }
 946
 947                                                 $str_tags .= $newtag;
 948                                         }
 949                                 }
 950                         }
 951
 952                         return $replaced;
 953                 }
 954
 955                 //get the person's name
 956                 $name = substr($tag, 1);
 957
 958                 // Sometimes the tag detection doesn't seem to work right
 959                 // This is some workaround
 960                 $nameparts = explode(" ", $name);
 961                 $name = $nameparts[0];
 962
 963                 // Try to detect the contact in various ways
 964                 if (strpos($name, 'http://')) {
 965                         // At first we have to ensure that the contact exists
 966                         Contact::getIdForURL($name);
 967
 968                         // Now we should have something
 969                         $contact = Contact::getDetailsByURL($name);
 970                 } elseif (strpos($name, '@')) {
 971                         // This function automatically probes when no entry was found
 972                         $contact = Contact::getDetailsByAddr($name);
 973                 } else {
 974                         $contact = false;
 975                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 976
 977                         if (strrpos($name, '+')) {
 978                                 // Is it in format @nick+number?
 979                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 980                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 981                         }
 982
 983                         // select someone by nick or attag in the current network
 984                         if (!DBA::isResult($contact) && ($network != "")) {
 985                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 986                                                 $name, $name, $network, $profile_uid];
 987                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 988                         }
 989
 990                         //select someone by name in the current network
 991                         if (!DBA::isResult($contact) && ($network != "")) {
 992                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 993                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 994                         }
 995
 996                         // select someone by nick or attag in any network
 997                         if (!DBA::isResult($contact)) {
 998                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 999                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1000                         }
1001
1002                         // select someone by name in any network
1003                         if (!DBA::isResult($contact)) {
1004                                 $condition = ['name' => $name, 'uid' => $profile_uid];
1005                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1006                         }
1007                 }
1008
1009                 // Check if $contact has been successfully loaded
1010                 if (DBA::isResult($contact)) {
1011                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
1012                                 $inform .= ',';
1013                         }
1014
1015                         if (isset($contact["id"])) {
1016                                 $inform .= 'cid:' . $contact["id"];
1017                         } elseif (isset($contact["notify"])) {
1018                                 $inform  .= $contact["notify"];
1019                         }
1020
1021                         $profile = $contact["url"];
1022                         $alias   = $contact["alias"];
1023                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1024                 }
1025
1026                 //if there is an url for this persons profile
1027                 if (isset($profile) && ($newname != "")) {
1028                         $replaced = true;
1029                         // create profile link
1030                         $profile = str_replace(',', '%2c', $profile);
1031                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1032                         $body = str_replace($tag_type . $name, $newtag, $body);
1033                         // append tag to str_tags
1034                         if (!stristr($str_tags, $newtag)) {
1035                                 if (strlen($str_tags)) {
1036                                         $str_tags .= ',';
1037                                 }
1038                                 $str_tags .= $newtag;
1039                         }
1040
1041                         /*
1042                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1043                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1044                          */
1045                         if (!empty($alias)) {
1046                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1047                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1048                                         if (strlen($str_tags)) {
1049                                                 $str_tags .= ',';
1050                                         }
1051                                         $str_tags .= $newtag;
1052                                 }
1053                         }
1054                 }
1055         }
1056
1057         return ['replaced' => $replaced, 'contact' => $contact];
1058 }
1059
1060 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1061 {
1062         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1063                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1064                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1065                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1066                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1067                                 $tags[] = $contact;
1068                         }
1069                 }
1070         } else {
1071                 $implicit_mentions = [
1072                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1073                 ];
1074
1075                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1076
1077                 foreach ($parent_terms as $parent_term) {
1078                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1079                 }
1080
1081                 foreach ($implicit_mentions as $url => $label) {
1082                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1083                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1084                         }
1085                 }
1086         }
1087
1088         return $tags;
1089 }