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\Model\Term;
  50 use Friendica\Network\HTTPException;
  51 use Friendica\Object\EMail\ItemCCEMail;
  52 use Friendica\Protocol\Activity;
  53 use Friendica\Protocol\Diaspora;
  54 use Friendica\Util\DateTimeFormat;
  55 use Friendica\Util\Security;
  56 use Friendica\Util\Strings;
  57 use Friendica\Worker\Delivery;
  58
  59 require_once __DIR__ . '/../include/items.php';
  60
  61 function item_post(App $a) {
  62         if (!Session::isAuthenticated()) {
  63                 throw new HTTPException\ForbiddenException();
  64         }
  65
  66         $uid = local_user();
  67
  68         if (!empty($_REQUEST['dropitems'])) {
  69                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  70                 drop_items($arr_drop);
  71                 $json = ['success' => 1];
  72                 System::jsonExit($json);
  73         }
  74
  75         Hook::callAll('post_local_start', $_REQUEST);
  76
  77         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  78
  79         $api_source = $_REQUEST['api_source'] ?? false;
  80
  81         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  82
  83         $return_path = $_REQUEST['return'] ?? '';
  84         $preview = intval($_REQUEST['preview'] ?? 0);
  85
  86         /*
  87          * Check for doubly-submitted posts, and reject duplicates
  88          * Note that we have to ignore previews, otherwise nothing will post
  89          * after it's been previewed
  90          */
  91         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  92                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  93                         Logger::info('item post: duplicate post');
  94                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  95                 } else {
  96                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  97                 }
  98         }
  99
 100         // Is this a reply to something?
 101         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
 102         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 103
 104         $thread_parent_id = 0;
 105         $thread_parent_contact = null;
 106
 107         $toplevel_item = null;
 108         $parent_user = null;
 109
 110         $parent_contact = null;
 111
 112         $objecttype = null;
 113         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 114         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 115
 116         if ($toplevel_item_id || $thr_parent_uri) {
 117                 if ($toplevel_item_id) {
 118                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 119                 } elseif ($thr_parent_uri) {
 120                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 121                 }
 122
 123                 // if this isn't the top-level parent of the conversation, find it
 124                 if (DBA::isResult($toplevel_item)) {
 125                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 126                         $thread_parent_id = $toplevel_item['id'];
 127                         $thr_parent_uri = $toplevel_item['uri'];
 128                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 129
 130                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 131                                 $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item['parent']]);
 132                         }
 133                 }
 134
 135                 if (!DBA::isResult($toplevel_item)) {
 136                         notice(DI::l10n()->t('Unable to locate original post.'));
 137                         if ($return_path) {
 138                                 DI::baseUrl()->redirect($return_path);
 139                         }
 140                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 141                 }
 142
 143                 $toplevel_item_id = $toplevel_item['id'];
 144                 $parent_user = $toplevel_item['uid'];
 145
 146                 $objecttype = Activity\ObjectType::COMMENT;
 147         }
 148
 149         if ($toplevel_item_id) {
 150                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 151         }
 152
 153         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 154         $app         = strip_tags($_REQUEST['source'] ?? '');
 155         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 156         $object      = $_REQUEST['object'] ?? '';
 157
 158         // Don't use "defaults" here. It would turn 0 to 1
 159         if (!isset($_REQUEST['wall'])) {
 160                 $wall = 1;
 161         } else {
 162                 $wall = $_REQUEST['wall'];
 163         }
 164
 165         // Ensure that the user id in a thread always stay the same
 166         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 167                 $profile_uid = $parent_user;
 168         }
 169
 170         // Check for multiple posts with the same message id (when the post was created via API)
 171         if (($message_id != '') && ($profile_uid != 0)) {
 172                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 173                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 174                         return 0;
 175                 }
 176         }
 177
 178         // Allow commenting if it is an answer to a public post
 179         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 180
 181         // Now check that valid personal details have been provided
 182         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 183                 notice(DI::l10n()->t('Permission denied.'));
 184                 if ($return_path) {
 185                         DI::baseUrl()->redirect($return_path);
 186                 }
 187
 188                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 189         }
 190
 191         // Init post instance
 192         $orig_post = null;
 193
 194         // is this an edited post?
 195         if ($post_id > 0) {
 196                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 197         }
 198
 199         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 200
 201         if (!DBA::isResult($user) && !$toplevel_item_id) {
 202                 return 0;
 203         }
 204
 205         $categories = '';
 206         $postopts = '';
 207         $emailcc = '';
 208         $body = $_REQUEST['body'] ?? '';
 209         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 210
 211         // If we have a speparate attachment, we need to add it to the body.
 212         if (!empty($has_attachment)) {
 213                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 214                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 215                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 216
 217                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 218                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 219
 220                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 221                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 222                 $attachment = [
 223                         'type'   => $attachment_type,
 224                         'title'  => $attachment_title,
 225                         'text'   => $attachment_text,
 226                         'url'    => $attachment_url,
 227                 ];
 228
 229                 if (!empty($attachment_img_src)) {
 230                         $attachment['images'] = [
 231                                 0 => [
 232                                         'src'    => $attachment_img_src,
 233                                         'width'  => $attachment_img_width,
 234                                         'height' => $attachment_img_height
 235                                 ]
 236                         ];
 237                 }
 238
 239                 $att_bbcode = add_page_info_data($attachment);
 240                 $body .= $att_bbcode;
 241         }
 242
 243         // Convert links with empty descriptions to links without an explicit description
 244         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 245
 246         if (!empty($orig_post)) {
 247                 $str_group_allow   = $orig_post['allow_gid'];
 248                 $str_contact_allow = $orig_post['allow_cid'];
 249                 $str_group_deny    = $orig_post['deny_gid'];
 250                 $str_contact_deny  = $orig_post['deny_cid'];
 251                 $location          = $orig_post['location'];
 252                 $coord             = $orig_post['coord'];
 253                 $verb              = $orig_post['verb'];
 254                 $objecttype        = $orig_post['object-type'];
 255                 $app               = $orig_post['app'];
 256                 $categories        = $orig_post['file'];
 257                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 258                 $body              = trim($body);
 259                 $private           = $orig_post['private'];
 260                 $pubmail_enabled   = $orig_post['pubmail'];
 261                 $network           = $orig_post['network'];
 262                 $guid              = $orig_post['guid'];
 263                 $extid             = $orig_post['extid'];
 264         } else {
 265                 $str_contact_allow = '';
 266                 $str_group_allow   = '';
 267                 $str_contact_deny  = '';
 268                 $str_group_deny    = '';
 269
 270                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 271                         $aclFormatter = DI::aclFormatter();
 272                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 273                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 274                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 275                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 276                 }
 277
 278                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 279                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 280                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 281                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 282                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 283                 $body              = trim($body);
 284                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 285                 $guid              = System::createUUID();
 286
 287                 $postopts = $_REQUEST['postopts'] ?? '';
 288
 289                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 290                         $private = Item::PRIVATE;
 291                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 292                         $private = Item::UNLISTED;
 293                 } else {
 294                         $private = Item::PUBLIC;
 295                 }
 296
 297                 // If this is a comment, set the permissions from the parent.
 298
 299                 if ($toplevel_item) {
 300                         // for non native networks use the network of the original post as network of the item
 301                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 302                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 303                                 && ($network == "")) {
 304                                 $network = $toplevel_item['network'];
 305                         }
 306
 307                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 308                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 309                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 310                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 311                         $private           = $toplevel_item['private'];
 312
 313                         $wall              = $toplevel_item['wall'];
 314                 }
 315
 316                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 317
 318                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 319                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 320                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 321                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 322                         }
 323                 }
 324
 325                 if (!strlen($body)) {
 326                         if ($preview) {
 327                                 System::jsonExit(['preview' => '']);
 328                         }
 329
 330                         info(DI::l10n()->t('Empty post discarded.'));
 331                         if ($return_path) {
 332                                 DI::baseUrl()->redirect($return_path);
 333                         }
 334
 335                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 336                 }
 337         }
 338
 339         if (!empty($categories)) {
 340                 // get the "fileas" tags for this post
 341                 $filedas = FileTag::fileToArray($categories);
 342         }
 343
 344         // save old and new categories, so we can determine what needs to be deleted from pconfig
 345         $categories_old = $categories;
 346         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 347         $categories_new = $categories;
 348
 349         if (!empty($filedas) && is_array($filedas)) {
 350                 // append the fileas stuff to the new categories list
 351                 $categories .= FileTag::arrayToFile($filedas);
 352         }
 353
 354         // get contact info for poster
 355
 356         $author = null;
 357         $self   = false;
 358         $contact_id = 0;
 359
 360         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 361                 $self = true;
 362                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 363         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 364                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 365         }
 366
 367         if (DBA::isResult($author)) {
 368                 $contact_id = $author['id'];
 369         }
 370
 371         // get contact info for owner
 372         if ($profile_uid == local_user() || $allow_comment) {
 373                 $contact_record = $author;
 374         } else {
 375                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 376         }
 377
 378         // Look for any tags and linkify them
 379         $str_tags = '';
 380         $inform   = '';
 381
 382         $tags = BBCode::getTags($body);
 383
 384         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 385                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 386         }
 387
 388         $tagged = [];
 389
 390         $private_forum = false;
 391         $only_to_forum = false;
 392         $forum_contact = [];
 393
 394         if (count($tags)) {
 395                 foreach ($tags as $tag) {
 396                         $tag_type = substr($tag, 0, 1);
 397
 398                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 399                                 continue;
 400                         }
 401
 402                         /*
 403                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 404                          * Robert Johnson should be first in the $tags array
 405                          */
 406                         $fullnametagged = false;
 407                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 408                         foreach ($tagged as $nextTag) {
 409                                 if (stristr($nextTag, $tag . ' ')) {
 410                                         $fullnametagged = true;
 411                                         break;
 412                                 }
 413                         }
 414                         if ($fullnametagged) {
 415                                 continue;
 416                         }
 417
 418                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 419                         if ($success['replaced']) {
 420                                 $tagged[] = $tag;
 421                         }
 422                         // When the forum is private or the forum is addressed with a "!" make the post private
 423                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]))) {
 424                                 $private_forum = $success['contact']['prv'];
 425                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 426                                 $private_id = $success['contact']['id'];
 427                                 $forum_contact = $success['contact'];
 428                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 429                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 430                                 $private_forum = false;
 431                                 $only_to_forum = true;
 432                                 $private_id = $success['contact']['id'];
 433                                 $forum_contact = $success['contact'];
 434                         }
 435                 }
 436         }
 437
 438         $original_contact_id = $contact_id;
 439
 440         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 441                 // we tagged a forum in a top level post. Now we change the post
 442                 $private = $private_forum;
 443
 444                 $str_group_allow = '';
 445                 $str_contact_deny = '';
 446                 $str_group_deny = '';
 447                 if ($private_forum) {
 448                         $str_contact_allow = '<' . $private_id . '>';
 449                 } else {
 450                         $str_contact_allow = '';
 451                 }
 452                 $contact_id = $private_id;
 453                 $contact_record = $forum_contact;
 454                 $_REQUEST['origin'] = false;
 455                 $wall = 0;
 456         }
 457
 458         /*
 459          * When a photo was uploaded into the message using the (profile wall) ajax
 460          * uploader, The permissions are initially set to disallow anybody but the
 461          * owner from seeing it. This is because the permissions may not yet have been
 462          * set for the post. If it's private, the photo permissions should be set
 463          * appropriately. But we didn't know the final permissions on the post until
 464          * now. So now we'll look for links of uploaded messages that are in the
 465          * post and set them to the same permissions as the post itself.
 466          */
 467
 468         $match = null;
 469
 470         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 471                 $objecttype = Activity\ObjectType::IMAGE;
 472         }
 473
 474         /*
 475          * Next link in any attachment references we find in the post.
 476          */
 477         $match = false;
 478
 479         /// @todo these lines should be moved to Model/Attach (Once it exists)
 480         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 481                 $attaches = $match[1];
 482                 if (count($attaches)) {
 483                         foreach ($attaches as $attach) {
 484                                 // Ensure to only modify attachments that you own
 485                                 $srch = '<' . intval($original_contact_id) . '>';
 486
 487                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 488                                                 'id' => $attach];
 489                                 if (!Attach::exists($condition)) {
 490                                         continue;
 491                                 }
 492
 493                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 494                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 495                                 $condition = ['id' => $attach];
 496                                 Attach::update($fields, $condition);
 497                         }
 498                 }
 499         }
 500
 501         // embedded bookmark or attachment in post? set bookmark flag
 502
 503         $data = BBCode::getAttachmentData($body);
 504         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 505                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 506                 $posttype = Item::PT_PAGE;
 507                 $objecttype =  Activity\ObjectType::BOOKMARK;
 508         }
 509
 510         $body = DI::bbCodeVideo()->transform($body);
 511
 512         $body = BBCode::scaleExternalImages($body);
 513
 514         // Setting the object type if not defined before
 515         if (!$objecttype) {
 516                 $objecttype = Activity\ObjectType::NOTE; // Default value
 517                 $objectdata = BBCode::getAttachedData($body);
 518
 519                 if ($objectdata["type"] == "link") {
 520                         $objecttype = Activity\ObjectType::BOOKMARK;
 521                 } elseif ($objectdata["type"] == "video") {
 522                         $objecttype = Activity\ObjectType::VIDEO;
 523                 } elseif ($objectdata["type"] == "photo") {
 524                         $objecttype = Activity\ObjectType::IMAGE;
 525                 }
 526
 527         }
 528
 529         $attachments = '';
 530         $match = false;
 531
 532         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 533                 foreach ($match[2] as $mtch) {
 534                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 535                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 536                         if ($attachment !== false) {
 537                                 if (strlen($attachments)) {
 538                                         $attachments .= ',';
 539                                 }
 540                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 541                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 542                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 543                         }
 544                         $body = str_replace($match[1],'',$body);
 545                 }
 546         }
 547
 548         if (!strlen($verb)) {
 549                 $verb = Activity::POST;
 550         }
 551
 552         if ($network == "") {
 553                 $network = Protocol::DFRN;
 554         }
 555
 556         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 557
 558         // even if the post arrived via API we are considering that it
 559         // originated on this site by default for determining relayability.
 560
 561         // Don't use "defaults" here. It would turn 0 to 1
 562         if (!isset($_REQUEST['origin'])) {
 563                 $origin = 1;
 564         } else {
 565                 $origin = $_REQUEST['origin'];
 566         }
 567
 568         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 569
 570         // Fallback so that we alway have a parent uri
 571         if (!$thr_parent_uri || !$toplevel_item_id) {
 572                 $thr_parent_uri = $uri;
 573         }
 574
 575         $datarray = [];
 576         $datarray['uid']           = $profile_uid;
 577         $datarray['wall']          = $wall;
 578         $datarray['gravity']       = $gravity;
 579         $datarray['network']       = $network;
 580         $datarray['contact-id']    = $contact_id;
 581         $datarray['owner-name']    = $contact_record['name'];
 582         $datarray['owner-link']    = $contact_record['url'];
 583         $datarray['owner-avatar']  = $contact_record['thumb'];
 584         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 585         $datarray['author-name']   = $author['name'];
 586         $datarray['author-link']   = $author['url'];
 587         $datarray['author-avatar'] = $author['thumb'];
 588         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 589         $datarray['created']       = DateTimeFormat::utcNow();
 590         $datarray['edited']        = DateTimeFormat::utcNow();
 591         $datarray['commented']     = DateTimeFormat::utcNow();
 592         $datarray['received']      = DateTimeFormat::utcNow();
 593         $datarray['changed']       = DateTimeFormat::utcNow();
 594         $datarray['extid']         = $extid;
 595         $datarray['guid']          = $guid;
 596         $datarray['uri']           = $uri;
 597         $datarray['title']         = $title;
 598         $datarray['body']          = $body;
 599         $datarray['app']           = $app;
 600         $datarray['location']      = $location;
 601         $datarray['coord']         = $coord;
 602         $datarray['tag']           = $str_tags;
 603         $datarray['file']          = $categories;
 604         $datarray['inform']        = $inform;
 605         $datarray['verb']          = $verb;
 606         $datarray['post-type']     = $posttype;
 607         $datarray['object-type']   = $objecttype;
 608         $datarray['allow_cid']     = $str_contact_allow;
 609         $datarray['allow_gid']     = $str_group_allow;
 610         $datarray['deny_cid']      = $str_contact_deny;
 611         $datarray['deny_gid']      = $str_group_deny;
 612         $datarray['private']       = $private;
 613         $datarray['pubmail']       = $pubmail_enabled;
 614         $datarray['attach']        = $attachments;
 615
 616         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 617         $datarray['parent-uri']    = $thr_parent_uri;
 618
 619         $datarray['postopts']      = $postopts;
 620         $datarray['origin']        = $origin;
 621         $datarray['moderated']     = false;
 622         $datarray['object']        = $object;
 623
 624         /*
 625          * These fields are for the convenience of addons...
 626          * 'self' if true indicates the owner is posting on their own wall
 627          * If parent is 0 it is a top-level post.
 628          */
 629         $datarray['parent']        = $toplevel_item_id;
 630         $datarray['self']          = $self;
 631
 632         // This triggers posts via API and the mirror functions
 633         $datarray['api_source'] = $api_source;
 634
 635         // This field is for storing the raw conversation data
 636         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 637
 638         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 639         if (DBA::isResult($conversation)) {
 640                 if ($conversation['conversation-uri'] != '') {
 641                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 642                 }
 643                 if ($conversation['conversation-href'] != '') {
 644                         $datarray['conversation-href'] = $conversation['conversation-href'];
 645                 }
 646         }
 647
 648         if ($orig_post) {
 649                 $datarray['edit'] = true;
 650         } else {
 651                 // If this was a share, add missing data here
 652                 $datarray = Item::addShareDataFromOriginal($datarray);
 653
 654                 $datarray['edit'] = false;
 655         }
 656
 657         // Check for hashtags in the body and repair or add hashtag links
 658         if ($preview || $orig_post) {
 659                 Item::setHashtags($datarray);
 660         }
 661
 662         // preview mode - prepare the body for display and send it via json
 663         if ($preview) {
 664                 // We set the datarray ID to -1 because in preview mode the dataray
 665                 // doesn't have an ID.
 666                 $datarray["id"] = -1;
 667                 $datarray["item_id"] = -1;
 668                 $datarray["author-network"] = Protocol::DFRN;
 669
 670                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 671
 672                 System::jsonExit(['preview' => $o]);
 673         }
 674
 675         Hook::callAll('post_local',$datarray);
 676
 677         if (!empty($datarray['cancel'])) {
 678                 Logger::info('mod_item: post cancelled by addon.');
 679                 if ($return_path) {
 680                         DI::baseUrl()->redirect($return_path);
 681                 }
 682
 683                 $json = ['cancel' => 1];
 684                 if (!empty($_REQUEST['jsreload'])) {
 685                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 686                 }
 687
 688                 System::jsonExit($json);
 689         }
 690
 691         if ($orig_post) {
 692                 // Fill the cache field
 693                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 694                 Item::putInCache($datarray);
 695
 696                 $fields = [
 697                         'title' => $datarray['title'],
 698                         'body' => $datarray['body'],
 699                         'tag' => $datarray['tag'],
 700                         'attach' => $datarray['attach'],
 701                         'file' => $datarray['file'],
 702                         'rendered-html' => $datarray['rendered-html'],
 703                         'rendered-hash' => $datarray['rendered-hash'],
 704                         'edited' => DateTimeFormat::utcNow(),
 705                         'changed' => DateTimeFormat::utcNow()];
 706
 707                 Item::update($fields, ['id' => $post_id]);
 708
 709                 // update filetags in pconfig
 710                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 711
 712                 info(DI::l10n()->t('Post updated.'));
 713                 if ($return_path) {
 714                         DI::baseUrl()->redirect($return_path);
 715                 }
 716
 717                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 718         }
 719
 720         unset($datarray['edit']);
 721         unset($datarray['self']);
 722         unset($datarray['api_source']);
 723
 724         if ($origin) {
 725                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 726                 if (!empty($signed)) {
 727                         $datarray['diaspora_signed_text'] = json_encode($signed);
 728                 }
 729         }
 730
 731         $post_id = Item::insert($datarray);
 732
 733         if (!$post_id) {
 734                 info(DI::l10n()->t('Item wasn\'t stored.'));
 735                 if ($return_path) {
 736                         DI::baseUrl()->redirect($return_path);
 737                 }
 738
 739                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 740         }
 741
 742         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 743
 744         if (!DBA::isResult($datarray)) {
 745                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 746                 if ($return_path) {
 747                         DI::baseUrl()->redirect($return_path);
 748                 }
 749
 750                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 751         }
 752
 753         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 754
 755         // update filetags in pconfig
 756         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 757
 758         // These notifications are sent if someone else is commenting other your wall
 759         if ($toplevel_item_id) {
 760                 if ($contact_record != $author) {
 761                         notification([
 762                                 'type'         => Type::COMMENT,
 763                                 'notify_flags' => $user['notify-flags'],
 764                                 'language'     => $user['language'],
 765                                 'to_name'      => $user['username'],
 766                                 'to_email'     => $user['email'],
 767                                 'uid'          => $user['uid'],
 768                                 'item'         => $datarray,
 769                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 770                                 'source_name'  => $datarray['author-name'],
 771                                 'source_link'  => $datarray['author-link'],
 772                                 'source_photo' => $datarray['author-avatar'],
 773                                 'verb'         => Activity::POST,
 774                                 'otype'        => 'item',
 775                                 'parent'       => $toplevel_item_id,
 776                                 'parent_uri'   => $toplevel_item['uri']
 777                         ]);
 778                 }
 779         } else {
 780                 if (($contact_record != $author) && !count($forum_contact)) {
 781                         notification([
 782                                 'type'         => Type::WALL,
 783                                 'notify_flags' => $user['notify-flags'],
 784                                 'language'     => $user['language'],
 785                                 'to_name'      => $user['username'],
 786                                 'to_email'     => $user['email'],
 787                                 'uid'          => $user['uid'],
 788                                 'item'         => $datarray,
 789                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 790                                 'source_name'  => $datarray['author-name'],
 791                                 'source_link'  => $datarray['author-link'],
 792                                 'source_photo' => $datarray['author-avatar'],
 793                                 'verb'         => Activity::POST,
 794                                 'otype'        => 'item'
 795                         ]);
 796                 }
 797         }
 798
 799         Hook::callAll('post_local_end', $datarray);
 800
 801         if (strlen($emailcc) && $profile_uid == local_user()) {
 802                 $recipients = explode(',', $emailcc);
 803                 if (count($recipients)) {
 804                         foreach ($recipients as $recipient) {
 805                                 $address = trim($recipient);
 806                                 if (!strlen($address)) {
 807                                         continue;
 808                                 }
 809                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 810                                         $datarray, $address, $author['thumb'] ?? ''));
 811                         }
 812                 }
 813         }
 814
 815         // Insert an item entry for UID=0 for global entries.
 816         // We now do it in the background to save some time.
 817         // This is important in interactive environments like the frontend or the API.
 818         // We don't fork a new process since this is done anyway with the following command
 819         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 820
 821         // When we are doing some forum posting via ! we have to start the notifier manually.
 822         // These kind of posts don't initiate the notifier call in the item class.
 823         if ($only_to_forum) {
 824                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 825         }
 826
 827         Logger::info('post_complete');
 828
 829         if ($api_source) {
 830                 return $post_id;
 831         }
 832
 833         info(DI::l10n()->t('Post published.'));
 834         item_post_return(DI::baseUrl(), $api_source, $return_path);
 835         // NOTREACHED
 836 }
 837
 838 function item_post_return($baseurl, $api_source, $return_path)
 839 {
 840         if ($api_source) {
 841                 return;
 842         }
 843
 844         if ($return_path) {
 845                 DI::baseUrl()->redirect($return_path);
 846         }
 847
 848         $json = ['success' => 1];
 849         if (!empty($_REQUEST['jsreload'])) {
 850                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 851         }
 852
 853         Logger::info('post_json', ['json' => $json]);
 854
 855         System::jsonExit($json);
 856 }
 857
 858 function item_content(App $a)
 859 {
 860         if (!Session::isAuthenticated()) {
 861                 return;
 862         }
 863
 864         $o = '';
 865
 866         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 867                 if (DI::mode()->isAjax()) {
 868                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 869                 } else {
 870                         if (!empty($a->argv[3])) {
 871                                 $o = drop_item($a->argv[2], $a->argv[3]);
 872                         }
 873                         else {
 874                                 $o = drop_item($a->argv[2]);
 875                         }
 876                 }
 877
 878                 if (DI::mode()->isAjax()) {
 879                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 880                         System::jsonExit([intval($a->argv[2]), intval($o)]);
 881                 }
 882         }
 883
 884         return $o;
 885 }
 886
 887 /**
 888  * This function removes the tag $tag from the text $body and replaces it with
 889  * the appropriate link.
 890  *
 891  * @param App     $a
 892  * @param string  $body     the text to replace the tag in
 893  * @param string  $inform   a comma-seperated string containing everybody to inform
 894  * @param string  $str_tags string to add the tag to
 895  * @param integer $profile_uid
 896  * @param string  $tag      the tag to replace
 897  * @param string  $network  The network of the post
 898  *
 899  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 900  * @throws ImagickException
 901  * @throws HTTPException\InternalServerErrorException
 902  */
 903 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 904 {
 905         $replaced = false;
 906         $r = null;
 907
 908         //is it a person tag?
 909         if (Term::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 910                 $tag_type = substr($tag, 0, 1);
 911                 //is it already replaced?
 912                 if (strpos($tag, '[url=')) {
 913                         //append tag to str_tags
 914                         if (!stristr($str_tags, $tag)) {
 915                                 if (strlen($str_tags)) {
 916                                         $str_tags .= ',';
 917                                 }
 918                                 $str_tags .= $tag;
 919                         }
 920
 921                         // Checking for the alias that is used for OStatus
 922                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 923                         if (preg_match($pattern, $tag, $matches)) {
 924                                 $data = Contact::getDetailsByURL($matches[1]);
 925
 926                                 if ($data["alias"] != "") {
 927                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 928
 929                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 930                                                 if (strlen($str_tags)) {
 931                                                         $str_tags .= ',';
 932                                                 }
 933
 934                                                 $str_tags .= $newtag;
 935                                         }
 936                                 }
 937                         }
 938
 939                         return $replaced;
 940                 }
 941
 942                 //get the person's name
 943                 $name = substr($tag, 1);
 944
 945                 // Sometimes the tag detection doesn't seem to work right
 946                 // This is some workaround
 947                 $nameparts = explode(" ", $name);
 948                 $name = $nameparts[0];
 949
 950                 // Try to detect the contact in various ways
 951                 if (strpos($name, 'http://')) {
 952                         // At first we have to ensure that the contact exists
 953                         Contact::getIdForURL($name);
 954
 955                         // Now we should have something
 956                         $contact = Contact::getDetailsByURL($name);
 957                 } elseif (strpos($name, '@')) {
 958                         // This function automatically probes when no entry was found
 959                         $contact = Contact::getDetailsByAddr($name);
 960                 } else {
 961                         $contact = false;
 962                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 963
 964                         if (strrpos($name, '+')) {
 965                                 // Is it in format @nick+number?
 966                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 967                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 968                         }
 969
 970                         // select someone by nick or attag in the current network
 971                         if (!DBA::isResult($contact) && ($network != "")) {
 972                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 973                                                 $name, $name, $network, $profile_uid];
 974                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 975                         }
 976
 977                         //select someone by name in the current network
 978                         if (!DBA::isResult($contact) && ($network != "")) {
 979                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 980                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 981                         }
 982
 983                         // select someone by nick or attag in any network
 984                         if (!DBA::isResult($contact)) {
 985                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 986                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 987                         }
 988
 989                         // select someone by name in any network
 990                         if (!DBA::isResult($contact)) {
 991                                 $condition = ['name' => $name, 'uid' => $profile_uid];
 992                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 993                         }
 994                 }
 995
 996                 // Check if $contact has been successfully loaded
 997                 if (DBA::isResult($contact)) {
 998                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
 999                                 $inform .= ',';
1000                         }
1001
1002                         if (isset($contact["id"])) {
1003                                 $inform .= 'cid:' . $contact["id"];
1004                         } elseif (isset($contact["notify"])) {
1005                                 $inform  .= $contact["notify"];
1006                         }
1007
1008                         $profile = $contact["url"];
1009                         $alias   = $contact["alias"];
1010                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1011                 }
1012
1013                 //if there is an url for this persons profile
1014                 if (isset($profile) && ($newname != "")) {
1015                         $replaced = true;
1016                         // create profile link
1017                         $profile = str_replace(',', '%2c', $profile);
1018                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1019                         $body = str_replace($tag_type . $name, $newtag, $body);
1020                         // append tag to str_tags
1021                         if (!stristr($str_tags, $newtag)) {
1022                                 if (strlen($str_tags)) {
1023                                         $str_tags .= ',';
1024                                 }
1025                                 $str_tags .= $newtag;
1026                         }
1027
1028                         /*
1029                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1030                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1031                          */
1032                         if (!empty($alias)) {
1033                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1034                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1035                                         if (strlen($str_tags)) {
1036                                                 $str_tags .= ',';
1037                                         }
1038                                         $str_tags .= $newtag;
1039                                 }
1040                         }
1041                 }
1042         }
1043
1044         return ['replaced' => $replaced, 'contact' => $contact];
1045 }
1046
1047 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1048 {
1049         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1050                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1051                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1052                         $contact = Tag::TAG_CHARACTER[Tag::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1053                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1054                                 $tags[] = $contact;
1055                         }
1056                 }
1057         } else {
1058                 $implicit_mentions = [
1059                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1060                 ];
1061
1062                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Tag::MENTION, Tag::IMPLICIT_MENTION]);
1063
1064                 foreach ($parent_terms as $parent_term) {
1065                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1066                 }
1067
1068                 foreach ($implicit_mentions as $url => $label) {
1069                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1070                                 $tags[] = Tag::TAG_CHARACTER[Tag::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1071                         }
1072                 }
1073         }
1074
1075         return $tags;
1076 }