mod/item.php

   1 <?php
   2 /**
   3  * @file mod/item.php
   4  */
   5
   6 /*
   7  * This is the POST destination for most all locally posted
   8  * text stuff. This function handles status, wall-to-wall status,
   9  * local comments, and remote coments that are posted on this site
  10  * (as opposed to being delivered in a feed).
  11  * Also processed here are posts and comments coming through the
  12  * statusnet/twitter API.
  13  *
  14  * All of these become an "item" which is our basic unit of
  15  * information.
  16  */
  17
  18 use Friendica\App;
  19 use Friendica\Content\Pager;
  20 use Friendica\Content\Text\BBCode;
  21 use Friendica\Core\Hook;
  22 use Friendica\Core\Logger;
  23 use Friendica\Core\Protocol;
  24 use Friendica\Core\Session;
  25 use Friendica\Core\System;
  26 use Friendica\Core\Worker;
  27 use Friendica\Database\DBA;
  28 use Friendica\DI;
  29 use Friendica\Model\Attach;
  30 use Friendica\Model\Contact;
  31 use Friendica\Model\Conversation;
  32 use Friendica\Model\FileTag;
  33 use Friendica\Model\Item;
  34 use Friendica\Model\Photo;
  35 use Friendica\Model\Term;
  36 use Friendica\Object\EMail\ItemCCEMail;
  37 use Friendica\Protocol\Activity;
  38 use Friendica\Protocol\Diaspora;
  39 use Friendica\Util\DateTimeFormat;
  40 use Friendica\Util\Security;
  41 use Friendica\Util\Strings;
  42 use Friendica\Worker\Delivery;
  43
  44 require_once __DIR__ . '/../include/items.php';
  45
  46 function item_post(App $a) {
  47         if (!Session::isAuthenticated()) {
  48                 return 0;
  49         }
  50
  51         $uid = local_user();
  52
  53         if (!empty($_REQUEST['dropitems'])) {
  54                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  55                 drop_items($arr_drop);
  56                 $json = ['success' => 1];
  57                 System::jsonExit($json);
  58         }
  59
  60         Hook::callAll('post_local_start', $_REQUEST);
  61
  62         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  63
  64         $api_source = $_REQUEST['api_source'] ?? false;
  65
  66         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  67
  68         $return_path = $_REQUEST['return'] ?? '';
  69         $preview = intval($_REQUEST['preview'] ?? 0);
  70
  71         /*
  72          * Check for doubly-submitted posts, and reject duplicates
  73          * Note that we have to ignore previews, otherwise nothing will post
  74          * after it's been previewed
  75          */
  76         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  77                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  78                         Logger::log("item post: duplicate post", Logger::DEBUG);
  79                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  80                 } else {
  81                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  82                 }
  83         }
  84
  85         // Is this a reply to something?
  86         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
  87         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
  88
  89         $thread_parent_id = 0;
  90         $thread_parent_contact = null;
  91
  92         $toplevel_item = null;
  93         $parent_user = null;
  94
  95         $parent_contact = null;
  96
  97         $objecttype = null;
  98         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
  99         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 100
 101         if ($toplevel_item_id || $thr_parent_uri) {
 102                 if ($toplevel_item_id) {
 103                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 104                 } elseif ($thr_parent_uri) {
 105                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 106                 }
 107
 108                 // if this isn't the top-level parent of the conversation, find it
 109                 if (DBA::isResult($toplevel_item)) {
 110                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 111                         $thread_parent_id = $toplevel_item['id'];
 112                         $thr_parent_uri = $toplevel_item['uri'];
 113                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 114
 115                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 116                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 117                         }
 118                 }
 119
 120                 if (!DBA::isResult($toplevel_item)) {
 121                         notice(DI::l10n()->t('Unable to locate original post.') . EOL);
 122                         if ($return_path) {
 123                                 DI::baseUrl()->redirect($return_path);
 124                         }
 125                         exit();
 126                 }
 127
 128                 $toplevel_item_id = $toplevel_item['id'];
 129                 $parent_user = $toplevel_item['uid'];
 130
 131                 $objecttype = Activity\ObjectType::COMMENT;
 132         }
 133
 134         if ($toplevel_item_id) {
 135                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 136         }
 137
 138         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 139         $app         = strip_tags($_REQUEST['source'] ?? '');
 140         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 141         $object      = $_REQUEST['object'] ?? '';
 142
 143         // Don't use "defaults" here. It would turn 0 to 1
 144         if (!isset($_REQUEST['wall'])) {
 145                 $wall = 1;
 146         } else {
 147                 $wall = $_REQUEST['wall'];
 148         }
 149
 150         // Ensure that the user id in a thread always stay the same
 151         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 152                 $profile_uid = $parent_user;
 153         }
 154
 155         // Check for multiple posts with the same message id (when the post was created via API)
 156         if (($message_id != '') && ($profile_uid != 0)) {
 157                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 158                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 159                         return 0;
 160                 }
 161         }
 162
 163         // Allow commenting if it is an answer to a public post
 164         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 165
 166         // Now check that valid personal details have been provided
 167         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 168                 notice(DI::l10n()->t('Permission denied.') . EOL);
 169                 if ($return_path) {
 170                         DI::baseUrl()->redirect($return_path);
 171                 }
 172
 173                 exit();
 174         }
 175
 176         // Init post instance
 177         $orig_post = null;
 178
 179         // is this an edited post?
 180         if ($post_id > 0) {
 181                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 182         }
 183
 184         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 185
 186         if (!DBA::isResult($user) && !$toplevel_item_id) {
 187                 return 0;
 188         }
 189
 190         $categories = '';
 191         $postopts = '';
 192         $emailcc = '';
 193         $body = $_REQUEST['body'] ?? '';
 194         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 195
 196         // If we have a speparate attachment, we need to add it to the body.
 197         if (!empty($has_attachment)) {
 198                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 199                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 200                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 201
 202                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 203                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 204
 205                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 206                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 207                 $attachment = [
 208                         'type'   => $attachment_type,
 209                         'title'  => $attachment_title,
 210                         'text'   => $attachment_text,
 211                         'url'    => $attachment_url,
 212                 ];
 213
 214                 if (!empty($attachment_img_src)) {
 215                         $attachment['images'] = [
 216                                 0 => [
 217                                         'src'    => $attachment_img_src,
 218                                         'width'  => $attachment_img_width,
 219                                         'height' => $attachment_img_height
 220                                 ]
 221                         ];
 222                 }
 223
 224                 $att_bbcode = add_page_info_data($attachment);
 225                 $body .= $att_bbcode;
 226         }
 227
 228         // Convert links with empty descriptions to links without an explicit description
 229         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 230
 231         if (!empty($orig_post)) {
 232                 $str_group_allow   = $orig_post['allow_gid'];
 233                 $str_contact_allow = $orig_post['allow_cid'];
 234                 $str_group_deny    = $orig_post['deny_gid'];
 235                 $str_contact_deny  = $orig_post['deny_cid'];
 236                 $location          = $orig_post['location'];
 237                 $coord             = $orig_post['coord'];
 238                 $verb              = $orig_post['verb'];
 239                 $objecttype        = $orig_post['object-type'];
 240                 $app               = $orig_post['app'];
 241                 $categories        = $orig_post['file'];
 242                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 243                 $body              = trim($body);
 244                 $private           = $orig_post['private'];
 245                 $pubmail_enabled   = $orig_post['pubmail'];
 246                 $network           = $orig_post['network'];
 247                 $guid              = $orig_post['guid'];
 248                 $extid             = $orig_post['extid'];
 249
 250         } else {
 251
 252                 /*
 253                  * if coming from the API and no privacy settings are set,
 254                  * use the user default permissions - as they won't have
 255                  * been supplied via a form.
 256                  */
 257                 if ($api_source
 258                         && !array_key_exists('contact_allow', $_REQUEST)
 259                         && !array_key_exists('group_allow', $_REQUEST)
 260                         && !array_key_exists('contact_deny', $_REQUEST)
 261                         && !array_key_exists('group_deny', $_REQUEST)) {
 262                         $str_group_allow   = $user['allow_gid'];
 263                         $str_contact_allow = $user['allow_cid'];
 264                         $str_group_deny    = $user['deny_gid'];
 265                         $str_contact_deny  = $user['deny_cid'];
 266                 } else {
 267                         // use the posted permissions
 268
 269                         $aclFormatter = DI::aclFormatter();
 270
 271                         $str_group_allow   = $aclFormatter->toString($_REQUEST['group_allow'] ?? '');
 272                         $str_contact_allow = $aclFormatter->toString($_REQUEST['contact_allow'] ?? '');
 273                         $str_group_deny    = $aclFormatter->toString($_REQUEST['group_deny'] ?? '');
 274                         $str_contact_deny  = $aclFormatter->toString($_REQUEST['contact_deny'] ?? '');
 275                 }
 276
 277                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 278                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 279                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 280                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 281                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 282                 $body              = trim($body);
 283                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 284                 $guid              = System::createUUID();
 285
 286                 $postopts = $_REQUEST['postopts'] ?? '';
 287
 288                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 289
 290                 // If this is a comment, set the permissions from the parent.
 291
 292                 if ($toplevel_item) {
 293                         // for non native networks use the network of the original post as network of the item
 294                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 295                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 296                                 && ($network == "")) {
 297                                 $network = $toplevel_item['network'];
 298                         }
 299
 300                         $str_contact_allow = $toplevel_item['allow_cid'];
 301                         $str_group_allow   = $toplevel_item['allow_gid'];
 302                         $str_contact_deny  = $toplevel_item['deny_cid'];
 303                         $str_group_deny    = $toplevel_item['deny_gid'];
 304                         $private           = $toplevel_item['private'];
 305
 306                         $wall              = $toplevel_item['wall'];
 307                 }
 308
 309                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 310
 311                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 312                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 313                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 314                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 315                         }
 316                 }
 317
 318                 if (!strlen($body)) {
 319                         if ($preview) {
 320                                 System::jsonExit(['preview' => '']);
 321                         }
 322                         info(DI::l10n()->t('Empty post discarded.') . EOL);
 323                         if ($return_path) {
 324                                 DI::baseUrl()->redirect($return_path);
 325                         }
 326                         exit();
 327                 }
 328         }
 329
 330         if (!empty($categories)) {
 331                 // get the "fileas" tags for this post
 332                 $filedas = FileTag::fileToArray($categories);
 333         }
 334
 335         // save old and new categories, so we can determine what needs to be deleted from pconfig
 336         $categories_old = $categories;
 337         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 338         $categories_new = $categories;
 339
 340         if (!empty($filedas) && is_array($filedas)) {
 341                 // append the fileas stuff to the new categories list
 342                 $categories .= FileTag::arrayToFile($filedas);
 343         }
 344
 345         // get contact info for poster
 346
 347         $author = null;
 348         $self   = false;
 349         $contact_id = 0;
 350
 351         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 352                 $self = true;
 353                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 354         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 355                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 356         }
 357
 358         if (DBA::isResult($author)) {
 359                 $contact_id = $author['id'];
 360         }
 361
 362         // get contact info for owner
 363         if ($profile_uid == local_user() || $allow_comment) {
 364                 $contact_record = $author;
 365         } else {
 366                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 367         }
 368
 369         // Look for any tags and linkify them
 370         $str_tags = '';
 371         $inform   = '';
 372
 373         $tags = BBCode::getTags($body);
 374
 375         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 376                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 377         }
 378
 379         $tagged = [];
 380
 381         $private_forum = false;
 382         $only_to_forum = false;
 383         $forum_contact = [];
 384
 385         if (count($tags)) {
 386                 foreach ($tags as $tag) {
 387                         $tag_type = substr($tag, 0, 1);
 388
 389                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 390                                 continue;
 391                         }
 392
 393                         /*
 394                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 395                          * Robert Johnson should be first in the $tags array
 396                          */
 397                         $fullnametagged = false;
 398                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 399                         foreach ($tagged as $nextTag) {
 400                                 if (stristr($nextTag, $tag . ' ')) {
 401                                         $fullnametagged = true;
 402                                         break;
 403                                 }
 404                         }
 405                         if ($fullnametagged) {
 406                                 continue;
 407                         }
 408
 409                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 410                         if ($success['replaced']) {
 411                                 $tagged[] = $tag;
 412                         }
 413                         // When the forum is private or the forum is addressed with a "!" make the post private
 414                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 415                                 $private_forum = $success['contact']['prv'];
 416                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 417                                 $private_id = $success['contact']['id'];
 418                                 $forum_contact = $success['contact'];
 419                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 420                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 421                                 $private_forum = false;
 422                                 $only_to_forum = true;
 423                                 $private_id = $success['contact']['id'];
 424                                 $forum_contact = $success['contact'];
 425                         }
 426                 }
 427         }
 428
 429         $original_contact_id = $contact_id;
 430
 431         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 432                 // we tagged a forum in a top level post. Now we change the post
 433                 $private = $private_forum;
 434
 435                 $str_group_allow = '';
 436                 $str_contact_deny = '';
 437                 $str_group_deny = '';
 438                 if ($private_forum) {
 439                         $str_contact_allow = '<' . $private_id . '>';
 440                 } else {
 441                         $str_contact_allow = '';
 442                 }
 443                 $contact_id = $private_id;
 444                 $contact_record = $forum_contact;
 445                 $_REQUEST['origin'] = false;
 446                 $wall = 0;
 447         }
 448
 449         /*
 450          * When a photo was uploaded into the message using the (profile wall) ajax
 451          * uploader, The permissions are initially set to disallow anybody but the
 452          * owner from seeing it. This is because the permissions may not yet have been
 453          * set for the post. If it's private, the photo permissions should be set
 454          * appropriately. But we didn't know the final permissions on the post until
 455          * now. So now we'll look for links of uploaded messages that are in the
 456          * post and set them to the same permissions as the post itself.
 457          */
 458
 459         $match = null;
 460
 461         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 462                 $objecttype = Activity\ObjectType::IMAGE;
 463         }
 464
 465         /*
 466          * Next link in any attachment references we find in the post.
 467          */
 468         $match = false;
 469
 470         /// @todo these lines should be moved to Model/Attach (Once it exists)
 471         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 472                 $attaches = $match[1];
 473                 if (count($attaches)) {
 474                         foreach ($attaches as $attach) {
 475                                 // Ensure to only modify attachments that you own
 476                                 $srch = '<' . intval($original_contact_id) . '>';
 477
 478                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 479                                                 'id' => $attach];
 480                                 if (!Attach::exists($condition)) {
 481                                         continue;
 482                                 }
 483
 484                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 485                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 486                                 $condition = ['id' => $attach];
 487                                 Attach::update($fields, $condition);
 488                         }
 489                 }
 490         }
 491
 492         // embedded bookmark or attachment in post? set bookmark flag
 493
 494         $data = BBCode::getAttachmentData($body);
 495         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 496                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 497                 $posttype = Item::PT_PAGE;
 498                 $objecttype =  Activity\ObjectType::BOOKMARK;
 499         }
 500
 501         $body = DI::bbCodeVideo()->transform($body);
 502
 503         // Fold multi-line [code] sequences
 504         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 505
 506         $body = BBCode::scaleExternalImages($body);
 507
 508         // Setting the object type if not defined before
 509         if (!$objecttype) {
 510                 $objecttype = Activity\ObjectType::NOTE; // Default value
 511                 $objectdata = BBCode::getAttachedData($body);
 512
 513                 if ($objectdata["type"] == "link") {
 514                         $objecttype = Activity\ObjectType::BOOKMARK;
 515                 } elseif ($objectdata["type"] == "video") {
 516                         $objecttype = Activity\ObjectType::VIDEO;
 517                 } elseif ($objectdata["type"] == "photo") {
 518                         $objecttype = Activity\ObjectType::IMAGE;
 519                 }
 520
 521         }
 522
 523         $attachments = '';
 524         $match = false;
 525
 526         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 527                 foreach ($match[2] as $mtch) {
 528                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 529                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 530                         if ($attachment !== false) {
 531                                 if (strlen($attachments)) {
 532                                         $attachments .= ',';
 533                                 }
 534                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 535                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 536                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 537                         }
 538                         $body = str_replace($match[1],'',$body);
 539                 }
 540         }
 541
 542         if (!strlen($verb)) {
 543                 $verb = Activity::POST;
 544         }
 545
 546         if ($network == "") {
 547                 $network = Protocol::DFRN;
 548         }
 549
 550         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 551
 552         // even if the post arrived via API we are considering that it
 553         // originated on this site by default for determining relayability.
 554
 555         // Don't use "defaults" here. It would turn 0 to 1
 556         if (!isset($_REQUEST['origin'])) {
 557                 $origin = 1;
 558         } else {
 559                 $origin = $_REQUEST['origin'];
 560         }
 561
 562         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 563
 564         // Fallback so that we alway have a parent uri
 565         if (!$thr_parent_uri || !$toplevel_item_id) {
 566                 $thr_parent_uri = $uri;
 567         }
 568
 569         $datarray = [];
 570         $datarray['uid']           = $profile_uid;
 571         $datarray['wall']          = $wall;
 572         $datarray['gravity']       = $gravity;
 573         $datarray['network']       = $network;
 574         $datarray['contact-id']    = $contact_id;
 575         $datarray['owner-name']    = $contact_record['name'];
 576         $datarray['owner-link']    = $contact_record['url'];
 577         $datarray['owner-avatar']  = $contact_record['thumb'];
 578         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 579         $datarray['author-name']   = $author['name'];
 580         $datarray['author-link']   = $author['url'];
 581         $datarray['author-avatar'] = $author['thumb'];
 582         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 583         $datarray['created']       = DateTimeFormat::utcNow();
 584         $datarray['edited']        = DateTimeFormat::utcNow();
 585         $datarray['commented']     = DateTimeFormat::utcNow();
 586         $datarray['received']      = DateTimeFormat::utcNow();
 587         $datarray['changed']       = DateTimeFormat::utcNow();
 588         $datarray['extid']         = $extid;
 589         $datarray['guid']          = $guid;
 590         $datarray['uri']           = $uri;
 591         $datarray['title']         = $title;
 592         $datarray['body']          = $body;
 593         $datarray['app']           = $app;
 594         $datarray['location']      = $location;
 595         $datarray['coord']         = $coord;
 596         $datarray['tag']           = $str_tags;
 597         $datarray['file']          = $categories;
 598         $datarray['inform']        = $inform;
 599         $datarray['verb']          = $verb;
 600         $datarray['post-type']     = $posttype;
 601         $datarray['object-type']   = $objecttype;
 602         $datarray['allow_cid']     = $str_contact_allow;
 603         $datarray['allow_gid']     = $str_group_allow;
 604         $datarray['deny_cid']      = $str_contact_deny;
 605         $datarray['deny_gid']      = $str_group_deny;
 606         $datarray['private']       = $private;
 607         $datarray['pubmail']       = $pubmail_enabled;
 608         $datarray['attach']        = $attachments;
 609
 610         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 611         $datarray['parent-uri']    = $thr_parent_uri;
 612
 613         $datarray['postopts']      = $postopts;
 614         $datarray['origin']        = $origin;
 615         $datarray['moderated']     = false;
 616         $datarray['object']        = $object;
 617
 618         /*
 619          * These fields are for the convenience of addons...
 620          * 'self' if true indicates the owner is posting on their own wall
 621          * If parent is 0 it is a top-level post.
 622          */
 623         $datarray['parent']        = $toplevel_item_id;
 624         $datarray['self']          = $self;
 625
 626         // This triggers posts via API and the mirror functions
 627         $datarray['api_source'] = $api_source;
 628
 629         // This field is for storing the raw conversation data
 630         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 631
 632         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 633         if (DBA::isResult($conversation)) {
 634                 if ($conversation['conversation-uri'] != '') {
 635                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 636                 }
 637                 if ($conversation['conversation-href'] != '') {
 638                         $datarray['conversation-href'] = $conversation['conversation-href'];
 639                 }
 640         }
 641
 642         if ($orig_post) {
 643                 $datarray['edit'] = true;
 644         } else {
 645                 // If this was a share, add missing data here
 646                 $datarray = Item::addShareDataFromOriginal($datarray);
 647
 648                 $datarray['edit'] = false;
 649         }
 650
 651         // Check for hashtags in the body and repair or add hashtag links
 652         if ($preview || $orig_post) {
 653                 Item::setHashtags($datarray);
 654         }
 655
 656         // preview mode - prepare the body for display and send it via json
 657         if ($preview) {
 658                 // We set the datarray ID to -1 because in preview mode the dataray
 659                 // doesn't have an ID.
 660                 $datarray["id"] = -1;
 661                 $datarray["item_id"] = -1;
 662                 $datarray["author-network"] = Protocol::DFRN;
 663
 664                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager(DI::args()->getQueryString()), 'search', false, true);
 665                 Logger::log('preview: ' . $o);
 666
 667                 System::jsonExit(['preview' => $o]);
 668         }
 669
 670         Hook::callAll('post_local',$datarray);
 671
 672         if (!empty($datarray['cancel'])) {
 673                 Logger::log('mod_item: post cancelled by addon.');
 674                 if ($return_path) {
 675                         DI::baseUrl()->redirect($return_path);
 676                 }
 677
 678                 $json = ['cancel' => 1];
 679                 if (!empty($_REQUEST['jsreload'])) {
 680                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 681                 }
 682
 683                 System::jsonExit($json);
 684         }
 685
 686         if ($orig_post) {
 687                 // Fill the cache field
 688                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 689                 Item::putInCache($datarray);
 690
 691                 $fields = [
 692                         'title' => $datarray['title'],
 693                         'body' => $datarray['body'],
 694                         'tag' => $datarray['tag'],
 695                         'attach' => $datarray['attach'],
 696                         'file' => $datarray['file'],
 697                         'rendered-html' => $datarray['rendered-html'],
 698                         'rendered-hash' => $datarray['rendered-hash'],
 699                         'edited' => DateTimeFormat::utcNow(),
 700                         'changed' => DateTimeFormat::utcNow()];
 701
 702                 Item::update($fields, ['id' => $post_id]);
 703
 704                 // update filetags in pconfig
 705                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 706
 707                 if ($return_path) {
 708                         DI::baseUrl()->redirect($return_path);
 709                 }
 710                 exit();
 711         }
 712
 713         unset($datarray['edit']);
 714         unset($datarray['self']);
 715         unset($datarray['api_source']);
 716
 717         if ($origin) {
 718                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 719                 if (!empty($signed)) {
 720                         $datarray['diaspora_signed_text'] = json_encode($signed);
 721                 }
 722         }
 723
 724         $post_id = Item::insert($datarray);
 725
 726         if (!$post_id) {
 727                 Logger::log("Item wasn't stored.");
 728                 if ($return_path) {
 729                         DI::baseUrl()->redirect($return_path);
 730                 }
 731         }
 732
 733         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 734
 735         if (!DBA::isResult($datarray)) {
 736                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 737                 if ($return_path) {
 738                         DI::baseUrl()->redirect($return_path);
 739                 }
 740         }
 741
 742         // update filetags in pconfig
 743         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 744
 745         // These notifications are sent if someone else is commenting other your wall
 746         if ($toplevel_item_id) {
 747                 if ($contact_record != $author) {
 748                         notification([
 749                                 'type'         => NOTIFY_COMMENT,
 750                                 'notify_flags' => $user['notify-flags'],
 751                                 'language'     => $user['language'],
 752                                 'to_name'      => $user['username'],
 753                                 'to_email'     => $user['email'],
 754                                 'uid'          => $user['uid'],
 755                                 'item'         => $datarray,
 756                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 757                                 'source_name'  => $datarray['author-name'],
 758                                 'source_link'  => $datarray['author-link'],
 759                                 'source_photo' => $datarray['author-avatar'],
 760                                 'verb'         => Activity::POST,
 761                                 'otype'        => 'item',
 762                                 'parent'       => $toplevel_item_id,
 763                                 'parent_uri'   => $toplevel_item['uri']
 764                         ]);
 765                 }
 766         } else {
 767                 if (($contact_record != $author) && !count($forum_contact)) {
 768                         notification([
 769                                 'type'         => NOTIFY_WALL,
 770                                 'notify_flags' => $user['notify-flags'],
 771                                 'language'     => $user['language'],
 772                                 'to_name'      => $user['username'],
 773                                 'to_email'     => $user['email'],
 774                                 'uid'          => $user['uid'],
 775                                 'item'         => $datarray,
 776                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 777                                 'source_name'  => $datarray['author-name'],
 778                                 'source_link'  => $datarray['author-link'],
 779                                 'source_photo' => $datarray['author-avatar'],
 780                                 'verb'         => Activity::POST,
 781                                 'otype'        => 'item'
 782                         ]);
 783                 }
 784         }
 785
 786         Hook::callAll('post_local_end', $datarray);
 787
 788         if (strlen($emailcc) && $profile_uid == local_user()) {
 789                 $recipients = explode(',', $emailcc);
 790                 if (count($recipients)) {
 791                         foreach ($recipients as $recipient) {
 792                                 $address = trim($recipient);
 793                                 if (!strlen($address)) {
 794                                         continue;
 795                                 }
 796                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 797                                         $datarray, $address, $author['thumb'] ?? ''));
 798                         }
 799                 }
 800         }
 801
 802         // Insert an item entry for UID=0 for global entries.
 803         // We now do it in the background to save some time.
 804         // This is important in interactive environments like the frontend or the API.
 805         // We don't fork a new process since this is done anyway with the following command
 806         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 807
 808         // When we are doing some forum posting via ! we have to start the notifier manually.
 809         // These kind of posts don't initiate the notifier call in the item class.
 810         if ($only_to_forum) {
 811                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 812         }
 813
 814         Logger::log('post_complete');
 815
 816         if ($api_source) {
 817                 return $post_id;
 818         }
 819
 820         item_post_return(DI::baseUrl(), $api_source, $return_path);
 821         // NOTREACHED
 822 }
 823
 824 function item_post_return($baseurl, $api_source, $return_path)
 825 {
 826         // figure out how to return, depending on from whence we came
 827     $a = DI::app();
 828
 829         if ($api_source) {
 830                 return;
 831         }
 832
 833         if ($return_path) {
 834                 DI::baseUrl()->redirect($return_path);
 835         }
 836
 837         $json = ['success' => 1];
 838         if (!empty($_REQUEST['jsreload'])) {
 839                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 840         }
 841
 842         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 843
 844         System::jsonExit($json);
 845 }
 846
 847 function item_content(App $a)
 848 {
 849         if (!Session::isAuthenticated()) {
 850                 return;
 851         }
 852
 853         $o = '';
 854
 855         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 856                 if (DI::mode()->isAjax()) {
 857                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 858                 } else {
 859                         if (!empty($a->argv[3])) {
 860                                 $o = drop_item($a->argv[2], $a->argv[3]);
 861                         }
 862                         else {
 863                                 $o = drop_item($a->argv[2]);
 864                         }
 865                 }
 866
 867                 if (DI::mode()->isAjax()) {
 868                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 869                         System::jsonExit([intval($a->argv[2]), intval($o)]);
 870                 }
 871         }
 872
 873         return $o;
 874 }
 875
 876 /**
 877  * This function removes the tag $tag from the text $body and replaces it with
 878  * the appropriate link.
 879  *
 880  * @param App     $a
 881  * @param string  $body     the text to replace the tag in
 882  * @param string  $inform   a comma-seperated string containing everybody to inform
 883  * @param string  $str_tags string to add the tag to
 884  * @param integer $profile_uid
 885  * @param string  $tag      the tag to replace
 886  * @param string  $network  The network of the post
 887  *
 888  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 889  * @throws ImagickException
 890  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 891  */
 892 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 893 {
 894         $replaced = false;
 895         $r = null;
 896
 897         //is it a person tag?
 898         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 899                 $tag_type = substr($tag, 0, 1);
 900                 //is it already replaced?
 901                 if (strpos($tag, '[url=')) {
 902                         //append tag to str_tags
 903                         if (!stristr($str_tags, $tag)) {
 904                                 if (strlen($str_tags)) {
 905                                         $str_tags .= ',';
 906                                 }
 907                                 $str_tags .= $tag;
 908                         }
 909
 910                         // Checking for the alias that is used for OStatus
 911                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 912                         if (preg_match($pattern, $tag, $matches)) {
 913                                 $data = Contact::getDetailsByURL($matches[1]);
 914
 915                                 if ($data["alias"] != "") {
 916                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 917
 918                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 919                                                 if (strlen($str_tags)) {
 920                                                         $str_tags .= ',';
 921                                                 }
 922
 923                                                 $str_tags .= $newtag;
 924                                         }
 925                                 }
 926                         }
 927
 928                         return $replaced;
 929                 }
 930
 931                 //get the person's name
 932                 $name = substr($tag, 1);
 933
 934                 // Sometimes the tag detection doesn't seem to work right
 935                 // This is some workaround
 936                 $nameparts = explode(" ", $name);
 937                 $name = $nameparts[0];
 938
 939                 // Try to detect the contact in various ways
 940                 if (strpos($name, 'http://')) {
 941                         // At first we have to ensure that the contact exists
 942                         Contact::getIdForURL($name);
 943
 944                         // Now we should have something
 945                         $contact = Contact::getDetailsByURL($name);
 946                 } elseif (strpos($name, '@')) {
 947                         // This function automatically probes when no entry was found
 948                         $contact = Contact::getDetailsByAddr($name);
 949                 } else {
 950                         $contact = false;
 951                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 952
 953                         if (strrpos($name, '+')) {
 954                                 // Is it in format @nick+number?
 955                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 956                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 957                         }
 958
 959                         // select someone by nick or attag in the current network
 960                         if (!DBA::isResult($contact) && ($network != "")) {
 961                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 962                                                 $name, $name, $network, $profile_uid];
 963                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 964                         }
 965
 966                         //select someone by name in the current network
 967                         if (!DBA::isResult($contact) && ($network != "")) {
 968                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 969                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 970                         }
 971
 972                         // select someone by nick or attag in any network
 973                         if (!DBA::isResult($contact)) {
 974                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 975                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 976                         }
 977
 978                         // select someone by name in any network
 979                         if (!DBA::isResult($contact)) {
 980                                 $condition = ['name' => $name, 'uid' => $profile_uid];
 981                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 982                         }
 983                 }
 984
 985                 // Check if $contact has been successfully loaded
 986                 if (DBA::isResult($contact)) {
 987                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
 988                                 $inform .= ',';
 989                         }
 990
 991                         if (isset($contact["id"])) {
 992                                 $inform .= 'cid:' . $contact["id"];
 993                         } elseif (isset($contact["notify"])) {
 994                                 $inform  .= $contact["notify"];
 995                         }
 996
 997                         $profile = $contact["url"];
 998                         $alias   = $contact["alias"];
 999                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1000                 }
1001
1002                 //if there is an url for this persons profile
1003                 if (isset($profile) && ($newname != "")) {
1004                         $replaced = true;
1005                         // create profile link
1006                         $profile = str_replace(',', '%2c', $profile);
1007                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1008                         $body = str_replace($tag_type . $name, $newtag, $body);
1009                         // append tag to str_tags
1010                         if (!stristr($str_tags, $newtag)) {
1011                                 if (strlen($str_tags)) {
1012                                         $str_tags .= ',';
1013                                 }
1014                                 $str_tags .= $newtag;
1015                         }
1016
1017                         /*
1018                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1019                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1020                          */
1021                         if (!empty($alias)) {
1022                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1023                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1024                                         if (strlen($str_tags)) {
1025                                                 $str_tags .= ',';
1026                                         }
1027                                         $str_tags .= $newtag;
1028                                 }
1029                         }
1030                 }
1031         }
1032
1033         return ['replaced' => $replaced, 'contact' => $contact];
1034 }
1035
1036 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1037 {
1038         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1039                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1040                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1041                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1042                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1043                                 $tags[] = $contact;
1044                         }
1045                 }
1046         } else {
1047                 $implicit_mentions = [
1048                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1049                 ];
1050
1051                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1052
1053                 foreach ($parent_terms as $parent_term) {
1054                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1055                 }
1056
1057                 foreach ($implicit_mentions as $url => $label) {
1058                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1059                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1060                         }
1061                 }
1062         }
1063
1064         return $tags;
1065 }