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\Notify\Type;
  35 use Friendica\Model\Photo;
  36 use Friendica\Model\Term;
  37 use Friendica\Network\HTTPException;
  38 use Friendica\Object\EMail\ItemCCEMail;
  39 use Friendica\Protocol\Activity;
  40 use Friendica\Protocol\Diaspora;
  41 use Friendica\Util\DateTimeFormat;
  42 use Friendica\Util\Security;
  43 use Friendica\Util\Strings;
  44 use Friendica\Worker\Delivery;
  45
  46 require_once __DIR__ . '/../include/items.php';
  47
  48 function item_post(App $a) {
  49         if (!Session::isAuthenticated()) {
  50                 throw new HTTPException\ForbiddenException();
  51         }
  52
  53         $uid = local_user();
  54
  55         if (!empty($_REQUEST['dropitems'])) {
  56                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  57                 drop_items($arr_drop);
  58                 $json = ['success' => 1];
  59                 System::jsonExit($json);
  60         }
  61
  62         Hook::callAll('post_local_start', $_REQUEST);
  63
  64         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  65
  66         $api_source = $_REQUEST['api_source'] ?? false;
  67
  68         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  69
  70         $return_path = $_REQUEST['return'] ?? '';
  71         $preview = intval($_REQUEST['preview'] ?? 0);
  72
  73         /*
  74          * Check for doubly-submitted posts, and reject duplicates
  75          * Note that we have to ignore previews, otherwise nothing will post
  76          * after it's been previewed
  77          */
  78         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  79                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  80                         Logger::info('item post: duplicate post');
  81                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  82                 } else {
  83                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  84                 }
  85         }
  86
  87         // Is this a reply to something?
  88         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
  89         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
  90
  91         $thread_parent_id = 0;
  92         $thread_parent_contact = null;
  93
  94         $toplevel_item = null;
  95         $parent_user = null;
  96
  97         $parent_contact = null;
  98
  99         $objecttype = null;
 100         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 101         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 102
 103         if ($toplevel_item_id || $thr_parent_uri) {
 104                 if ($toplevel_item_id) {
 105                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 106                 } elseif ($thr_parent_uri) {
 107                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 108                 }
 109
 110                 // if this isn't the top-level parent of the conversation, find it
 111                 if (DBA::isResult($toplevel_item)) {
 112                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 113                         $thread_parent_id = $toplevel_item['id'];
 114                         $thr_parent_uri = $toplevel_item['uri'];
 115                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 116
 117                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 118                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 119                         }
 120                 }
 121
 122                 if (!DBA::isResult($toplevel_item)) {
 123                         notice(DI::l10n()->t('Unable to locate original post.'));
 124                         if ($return_path) {
 125                                 DI::baseUrl()->redirect($return_path);
 126                         }
 127                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 128                 }
 129
 130                 $toplevel_item_id = $toplevel_item['id'];
 131                 $parent_user = $toplevel_item['uid'];
 132
 133                 $objecttype = Activity\ObjectType::COMMENT;
 134         }
 135
 136         if ($toplevel_item_id) {
 137                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 138         }
 139
 140         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 141         $app         = strip_tags($_REQUEST['source'] ?? '');
 142         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 143         $object      = $_REQUEST['object'] ?? '';
 144
 145         // Don't use "defaults" here. It would turn 0 to 1
 146         if (!isset($_REQUEST['wall'])) {
 147                 $wall = 1;
 148         } else {
 149                 $wall = $_REQUEST['wall'];
 150         }
 151
 152         // Ensure that the user id in a thread always stay the same
 153         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 154                 $profile_uid = $parent_user;
 155         }
 156
 157         // Check for multiple posts with the same message id (when the post was created via API)
 158         if (($message_id != '') && ($profile_uid != 0)) {
 159                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 160                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 161                         return 0;
 162                 }
 163         }
 164
 165         // Allow commenting if it is an answer to a public post
 166         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 167
 168         // Now check that valid personal details have been provided
 169         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 170                 notice(DI::l10n()->t('Permission denied.'));
 171                 if ($return_path) {
 172                         DI::baseUrl()->redirect($return_path);
 173                 }
 174
 175                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 176         }
 177
 178         // Init post instance
 179         $orig_post = null;
 180
 181         // is this an edited post?
 182         if ($post_id > 0) {
 183                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 184         }
 185
 186         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 187
 188         if (!DBA::isResult($user) && !$toplevel_item_id) {
 189                 return 0;
 190         }
 191
 192         $categories = '';
 193         $postopts = '';
 194         $emailcc = '';
 195         $body = $_REQUEST['body'] ?? '';
 196         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 197
 198         // If we have a speparate attachment, we need to add it to the body.
 199         if (!empty($has_attachment)) {
 200                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 201                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 202                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 203
 204                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 205                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 206
 207                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 208                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 209                 $attachment = [
 210                         'type'   => $attachment_type,
 211                         'title'  => $attachment_title,
 212                         'text'   => $attachment_text,
 213                         'url'    => $attachment_url,
 214                 ];
 215
 216                 if (!empty($attachment_img_src)) {
 217                         $attachment['images'] = [
 218                                 0 => [
 219                                         'src'    => $attachment_img_src,
 220                                         'width'  => $attachment_img_width,
 221                                         'height' => $attachment_img_height
 222                                 ]
 223                         ];
 224                 }
 225
 226                 $att_bbcode = add_page_info_data($attachment);
 227                 $body .= $att_bbcode;
 228         }
 229
 230         // Convert links with empty descriptions to links without an explicit description
 231         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 232
 233         if (!empty($orig_post)) {
 234                 $str_group_allow   = $orig_post['allow_gid'];
 235                 $str_contact_allow = $orig_post['allow_cid'];
 236                 $str_group_deny    = $orig_post['deny_gid'];
 237                 $str_contact_deny  = $orig_post['deny_cid'];
 238                 $location          = $orig_post['location'];
 239                 $coord             = $orig_post['coord'];
 240                 $verb              = $orig_post['verb'];
 241                 $objecttype        = $orig_post['object-type'];
 242                 $app               = $orig_post['app'];
 243                 $categories        = $orig_post['file'];
 244                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 245                 $body              = trim($body);
 246                 $private           = $orig_post['private'];
 247                 $pubmail_enabled   = $orig_post['pubmail'];
 248                 $network           = $orig_post['network'];
 249                 $guid              = $orig_post['guid'];
 250                 $extid             = $orig_post['extid'];
 251
 252         } else {
 253
 254                 /*
 255                  * if coming from the API and no privacy settings are set,
 256                  * use the user default permissions - as they won't have
 257                  * been supplied via a form.
 258                  */
 259                 if ($api_source
 260                         && !array_key_exists('contact_allow', $_REQUEST)
 261                         && !array_key_exists('group_allow', $_REQUEST)
 262                         && !array_key_exists('contact_deny', $_REQUEST)
 263                         && !array_key_exists('group_deny', $_REQUEST)) {
 264                         $str_group_allow   = $user['allow_gid'];
 265                         $str_contact_allow = $user['allow_cid'];
 266                         $str_group_deny    = $user['deny_gid'];
 267                         $str_contact_deny  = $user['deny_cid'];
 268                 } else {
 269                         // use the posted permissions
 270
 271                         $aclFormatter = DI::aclFormatter();
 272
 273                         $str_group_allow   = $aclFormatter->toString($_REQUEST['group_allow'] ?? '');
 274                         $str_contact_allow = $aclFormatter->toString($_REQUEST['contact_allow'] ?? '');
 275                         $str_group_deny    = $aclFormatter->toString($_REQUEST['group_deny'] ?? '');
 276                         $str_contact_deny  = $aclFormatter->toString($_REQUEST['contact_deny'] ?? '');
 277                 }
 278
 279                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 280                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 281                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 282                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 283                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 284                 $body              = trim($body);
 285                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 286                 $guid              = System::createUUID();
 287
 288                 $postopts = $_REQUEST['postopts'] ?? '';
 289
 290                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 291
 292                 // If this is a comment, set the permissions from the parent.
 293
 294                 if ($toplevel_item) {
 295                         // for non native networks use the network of the original post as network of the item
 296                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 297                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 298                                 && ($network == "")) {
 299                                 $network = $toplevel_item['network'];
 300                         }
 301
 302                         $str_contact_allow = $toplevel_item['allow_cid'];
 303                         $str_group_allow   = $toplevel_item['allow_gid'];
 304                         $str_contact_deny  = $toplevel_item['deny_cid'];
 305                         $str_group_deny    = $toplevel_item['deny_gid'];
 306                         $private           = $toplevel_item['private'];
 307
 308                         $wall              = $toplevel_item['wall'];
 309                 }
 310
 311                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 312
 313                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 314                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 315                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 316                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 317                         }
 318                 }
 319
 320                 if (!strlen($body)) {
 321                         if ($preview) {
 322                                 System::jsonExit(['preview' => '']);
 323                         }
 324
 325                         info(DI::l10n()->t('Empty post discarded.'));
 326                         if ($return_path) {
 327                                 DI::baseUrl()->redirect($return_path);
 328                         }
 329
 330                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 331                 }
 332         }
 333
 334         if (!empty($categories)) {
 335                 // get the "fileas" tags for this post
 336                 $filedas = FileTag::fileToArray($categories);
 337         }
 338
 339         // save old and new categories, so we can determine what needs to be deleted from pconfig
 340         $categories_old = $categories;
 341         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 342         $categories_new = $categories;
 343
 344         if (!empty($filedas) && is_array($filedas)) {
 345                 // append the fileas stuff to the new categories list
 346                 $categories .= FileTag::arrayToFile($filedas);
 347         }
 348
 349         // get contact info for poster
 350
 351         $author = null;
 352         $self   = false;
 353         $contact_id = 0;
 354
 355         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 356                 $self = true;
 357                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 358         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 359                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 360         }
 361
 362         if (DBA::isResult($author)) {
 363                 $contact_id = $author['id'];
 364         }
 365
 366         // get contact info for owner
 367         if ($profile_uid == local_user() || $allow_comment) {
 368                 $contact_record = $author;
 369         } else {
 370                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 371         }
 372
 373         // Look for any tags and linkify them
 374         $str_tags = '';
 375         $inform   = '';
 376
 377         $tags = BBCode::getTags($body);
 378
 379         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 380                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 381         }
 382
 383         $tagged = [];
 384
 385         $private_forum = false;
 386         $only_to_forum = false;
 387         $forum_contact = [];
 388
 389         if (count($tags)) {
 390                 foreach ($tags as $tag) {
 391                         $tag_type = substr($tag, 0, 1);
 392
 393                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 394                                 continue;
 395                         }
 396
 397                         /*
 398                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 399                          * Robert Johnson should be first in the $tags array
 400                          */
 401                         $fullnametagged = false;
 402                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 403                         foreach ($tagged as $nextTag) {
 404                                 if (stristr($nextTag, $tag . ' ')) {
 405                                         $fullnametagged = true;
 406                                         break;
 407                                 }
 408                         }
 409                         if ($fullnametagged) {
 410                                 continue;
 411                         }
 412
 413                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 414                         if ($success['replaced']) {
 415                                 $tagged[] = $tag;
 416                         }
 417                         // When the forum is private or the forum is addressed with a "!" make the post private
 418                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 419                                 $private_forum = $success['contact']['prv'];
 420                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 421                                 $private_id = $success['contact']['id'];
 422                                 $forum_contact = $success['contact'];
 423                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 424                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 425                                 $private_forum = false;
 426                                 $only_to_forum = true;
 427                                 $private_id = $success['contact']['id'];
 428                                 $forum_contact = $success['contact'];
 429                         }
 430                 }
 431         }
 432
 433         $original_contact_id = $contact_id;
 434
 435         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 436                 // we tagged a forum in a top level post. Now we change the post
 437                 $private = $private_forum;
 438
 439                 $str_group_allow = '';
 440                 $str_contact_deny = '';
 441                 $str_group_deny = '';
 442                 if ($private_forum) {
 443                         $str_contact_allow = '<' . $private_id . '>';
 444                 } else {
 445                         $str_contact_allow = '';
 446                 }
 447                 $contact_id = $private_id;
 448                 $contact_record = $forum_contact;
 449                 $_REQUEST['origin'] = false;
 450                 $wall = 0;
 451         }
 452
 453         /*
 454          * When a photo was uploaded into the message using the (profile wall) ajax
 455          * uploader, The permissions are initially set to disallow anybody but the
 456          * owner from seeing it. This is because the permissions may not yet have been
 457          * set for the post. If it's private, the photo permissions should be set
 458          * appropriately. But we didn't know the final permissions on the post until
 459          * now. So now we'll look for links of uploaded messages that are in the
 460          * post and set them to the same permissions as the post itself.
 461          */
 462
 463         $match = null;
 464
 465         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 466                 $objecttype = Activity\ObjectType::IMAGE;
 467         }
 468
 469         /*
 470          * Next link in any attachment references we find in the post.
 471          */
 472         $match = false;
 473
 474         /// @todo these lines should be moved to Model/Attach (Once it exists)
 475         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 476                 $attaches = $match[1];
 477                 if (count($attaches)) {
 478                         foreach ($attaches as $attach) {
 479                                 // Ensure to only modify attachments that you own
 480                                 $srch = '<' . intval($original_contact_id) . '>';
 481
 482                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 483                                                 'id' => $attach];
 484                                 if (!Attach::exists($condition)) {
 485                                         continue;
 486                                 }
 487
 488                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 489                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 490                                 $condition = ['id' => $attach];
 491                                 Attach::update($fields, $condition);
 492                         }
 493                 }
 494         }
 495
 496         // embedded bookmark or attachment in post? set bookmark flag
 497
 498         $data = BBCode::getAttachmentData($body);
 499         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 500                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 501                 $posttype = Item::PT_PAGE;
 502                 $objecttype =  Activity\ObjectType::BOOKMARK;
 503         }
 504
 505         $body = DI::bbCodeVideo()->transform($body);
 506
 507         $body = BBCode::scaleExternalImages($body);
 508
 509         // Setting the object type if not defined before
 510         if (!$objecttype) {
 511                 $objecttype = Activity\ObjectType::NOTE; // Default value
 512                 $objectdata = BBCode::getAttachedData($body);
 513
 514                 if ($objectdata["type"] == "link") {
 515                         $objecttype = Activity\ObjectType::BOOKMARK;
 516                 } elseif ($objectdata["type"] == "video") {
 517                         $objecttype = Activity\ObjectType::VIDEO;
 518                 } elseif ($objectdata["type"] == "photo") {
 519                         $objecttype = Activity\ObjectType::IMAGE;
 520                 }
 521
 522         }
 523
 524         $attachments = '';
 525         $match = false;
 526
 527         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 528                 foreach ($match[2] as $mtch) {
 529                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 530                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 531                         if ($attachment !== false) {
 532                                 if (strlen($attachments)) {
 533                                         $attachments .= ',';
 534                                 }
 535                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 536                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 537                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 538                         }
 539                         $body = str_replace($match[1],'',$body);
 540                 }
 541         }
 542
 543         if (!strlen($verb)) {
 544                 $verb = Activity::POST;
 545         }
 546
 547         if ($network == "") {
 548                 $network = Protocol::DFRN;
 549         }
 550
 551         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 552
 553         // even if the post arrived via API we are considering that it
 554         // originated on this site by default for determining relayability.
 555
 556         // Don't use "defaults" here. It would turn 0 to 1
 557         if (!isset($_REQUEST['origin'])) {
 558                 $origin = 1;
 559         } else {
 560                 $origin = $_REQUEST['origin'];
 561         }
 562
 563         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 564
 565         // Fallback so that we alway have a parent uri
 566         if (!$thr_parent_uri || !$toplevel_item_id) {
 567                 $thr_parent_uri = $uri;
 568         }
 569
 570         $datarray = [];
 571         $datarray['uid']           = $profile_uid;
 572         $datarray['wall']          = $wall;
 573         $datarray['gravity']       = $gravity;
 574         $datarray['network']       = $network;
 575         $datarray['contact-id']    = $contact_id;
 576         $datarray['owner-name']    = $contact_record['name'];
 577         $datarray['owner-link']    = $contact_record['url'];
 578         $datarray['owner-avatar']  = $contact_record['thumb'];
 579         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 580         $datarray['author-name']   = $author['name'];
 581         $datarray['author-link']   = $author['url'];
 582         $datarray['author-avatar'] = $author['thumb'];
 583         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 584         $datarray['created']       = DateTimeFormat::utcNow();
 585         $datarray['edited']        = DateTimeFormat::utcNow();
 586         $datarray['commented']     = DateTimeFormat::utcNow();
 587         $datarray['received']      = DateTimeFormat::utcNow();
 588         $datarray['changed']       = DateTimeFormat::utcNow();
 589         $datarray['extid']         = $extid;
 590         $datarray['guid']          = $guid;
 591         $datarray['uri']           = $uri;
 592         $datarray['title']         = $title;
 593         $datarray['body']          = $body;
 594         $datarray['app']           = $app;
 595         $datarray['location']      = $location;
 596         $datarray['coord']         = $coord;
 597         $datarray['tag']           = $str_tags;
 598         $datarray['file']          = $categories;
 599         $datarray['inform']        = $inform;
 600         $datarray['verb']          = $verb;
 601         $datarray['post-type']     = $posttype;
 602         $datarray['object-type']   = $objecttype;
 603         $datarray['allow_cid']     = $str_contact_allow;
 604         $datarray['allow_gid']     = $str_group_allow;
 605         $datarray['deny_cid']      = $str_contact_deny;
 606         $datarray['deny_gid']      = $str_group_deny;
 607         $datarray['private']       = $private;
 608         $datarray['pubmail']       = $pubmail_enabled;
 609         $datarray['attach']        = $attachments;
 610
 611         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 612         $datarray['parent-uri']    = $thr_parent_uri;
 613
 614         $datarray['postopts']      = $postopts;
 615         $datarray['origin']        = $origin;
 616         $datarray['moderated']     = false;
 617         $datarray['object']        = $object;
 618
 619         /*
 620          * These fields are for the convenience of addons...
 621          * 'self' if true indicates the owner is posting on their own wall
 622          * If parent is 0 it is a top-level post.
 623          */
 624         $datarray['parent']        = $toplevel_item_id;
 625         $datarray['self']          = $self;
 626
 627         // This triggers posts via API and the mirror functions
 628         $datarray['api_source'] = $api_source;
 629
 630         // This field is for storing the raw conversation data
 631         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 632
 633         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 634         if (DBA::isResult($conversation)) {
 635                 if ($conversation['conversation-uri'] != '') {
 636                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 637                 }
 638                 if ($conversation['conversation-href'] != '') {
 639                         $datarray['conversation-href'] = $conversation['conversation-href'];
 640                 }
 641         }
 642
 643         if ($orig_post) {
 644                 $datarray['edit'] = true;
 645         } else {
 646                 // If this was a share, add missing data here
 647                 $datarray = Item::addShareDataFromOriginal($datarray);
 648
 649                 $datarray['edit'] = false;
 650         }
 651
 652         // Check for hashtags in the body and repair or add hashtag links
 653         if ($preview || $orig_post) {
 654                 Item::setHashtags($datarray);
 655         }
 656
 657         // preview mode - prepare the body for display and send it via json
 658         if ($preview) {
 659                 // We set the datarray ID to -1 because in preview mode the dataray
 660                 // doesn't have an ID.
 661                 $datarray["id"] = -1;
 662                 $datarray["item_id"] = -1;
 663                 $datarray["author-network"] = Protocol::DFRN;
 664
 665                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager(DI::args()->getQueryString()), 'search', false, true);
 666
 667                 System::jsonExit(['preview' => $o]);
 668         }
 669
 670         Hook::callAll('post_local',$datarray);
 671
 672         if (!empty($datarray['cancel'])) {
 673                 Logger::info('mod_item: post cancelled by addon.');
 674                 if ($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, $categories_new, 'category');
 706
 707                 info(DI::l10n()->t('Post updated.'));
 708                 if ($return_path) {
 709                         DI::baseUrl()->redirect($return_path);
 710                 }
 711
 712                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 713         }
 714
 715         unset($datarray['edit']);
 716         unset($datarray['self']);
 717         unset($datarray['api_source']);
 718
 719         if ($origin) {
 720                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 721                 if (!empty($signed)) {
 722                         $datarray['diaspora_signed_text'] = json_encode($signed);
 723                 }
 724         }
 725
 726         $post_id = Item::insert($datarray);
 727
 728         if (!$post_id) {
 729                 info(DI::l10n()->t('Item wasn\'t stored.'));
 730                 if ($return_path) {
 731                         DI::baseUrl()->redirect($return_path);
 732                 }
 733
 734                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 735         }
 736
 737         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 738
 739         if (!DBA::isResult($datarray)) {
 740                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 741                 if ($return_path) {
 742                         DI::baseUrl()->redirect($return_path);
 743                 }
 744
 745                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 746         }
 747
 748         // update filetags in pconfig
 749         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 750
 751         // These notifications are sent if someone else is commenting other your wall
 752         if ($toplevel_item_id) {
 753                 if ($contact_record != $author) {
 754                         notification([
 755                                 'type'         => Type::COMMENT,
 756                                 'notify_flags' => $user['notify-flags'],
 757                                 'language'     => $user['language'],
 758                                 'to_name'      => $user['username'],
 759                                 'to_email'     => $user['email'],
 760                                 'uid'          => $user['uid'],
 761                                 'item'         => $datarray,
 762                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 763                                 'source_name'  => $datarray['author-name'],
 764                                 'source_link'  => $datarray['author-link'],
 765                                 'source_photo' => $datarray['author-avatar'],
 766                                 'verb'         => Activity::POST,
 767                                 'otype'        => 'item',
 768                                 'parent'       => $toplevel_item_id,
 769                                 'parent_uri'   => $toplevel_item['uri']
 770                         ]);
 771                 }
 772         } else {
 773                 if (($contact_record != $author) && !count($forum_contact)) {
 774                         notification([
 775                                 'type'         => Type::WALL,
 776                                 'notify_flags' => $user['notify-flags'],
 777                                 'language'     => $user['language'],
 778                                 'to_name'      => $user['username'],
 779                                 'to_email'     => $user['email'],
 780                                 'uid'          => $user['uid'],
 781                                 'item'         => $datarray,
 782                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 783                                 'source_name'  => $datarray['author-name'],
 784                                 'source_link'  => $datarray['author-link'],
 785                                 'source_photo' => $datarray['author-avatar'],
 786                                 'verb'         => Activity::POST,
 787                                 'otype'        => 'item'
 788                         ]);
 789                 }
 790         }
 791
 792         Hook::callAll('post_local_end', $datarray);
 793
 794         if (strlen($emailcc) && $profile_uid == local_user()) {
 795                 $recipients = explode(',', $emailcc);
 796                 if (count($recipients)) {
 797                         foreach ($recipients as $recipient) {
 798                                 $address = trim($recipient);
 799                                 if (!strlen($address)) {
 800                                         continue;
 801                                 }
 802                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 803                                         $datarray, $address, $author['thumb'] ?? ''));
 804                         }
 805                 }
 806         }
 807
 808         // Insert an item entry for UID=0 for global entries.
 809         // We now do it in the background to save some time.
 810         // This is important in interactive environments like the frontend or the API.
 811         // We don't fork a new process since this is done anyway with the following command
 812         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 813
 814         // When we are doing some forum posting via ! we have to start the notifier manually.
 815         // These kind of posts don't initiate the notifier call in the item class.
 816         if ($only_to_forum) {
 817                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 818         }
 819
 820         Logger::info('post_complete');
 821
 822         if ($api_source) {
 823                 return $post_id;
 824         }
 825
 826         info(DI::l10n()->t('Post published.'));
 827         item_post_return(DI::baseUrl(), $api_source, $return_path);
 828         // NOTREACHED
 829 }
 830
 831 function item_post_return($baseurl, $api_source, $return_path)
 832 {
 833         if ($api_source) {
 834                 return;
 835         }
 836
 837         if ($return_path) {
 838                 DI::baseUrl()->redirect($return_path);
 839         }
 840
 841         $json = ['success' => 1];
 842         if (!empty($_REQUEST['jsreload'])) {
 843                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 844         }
 845
 846         Logger::info('post_json', ['json' => $json]);
 847
 848         System::jsonExit($json);
 849 }
 850
 851 function item_content(App $a)
 852 {
 853         if (!Session::isAuthenticated()) {
 854                 return;
 855         }
 856
 857         $o = '';
 858
 859         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 860                 if (DI::mode()->isAjax()) {
 861                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 862                 } else {
 863                         if (!empty($a->argv[3])) {
 864                                 $o = drop_item($a->argv[2], $a->argv[3]);
 865                         }
 866                         else {
 867                                 $o = drop_item($a->argv[2]);
 868                         }
 869                 }
 870
 871                 if (DI::mode()->isAjax()) {
 872                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 873                         System::jsonExit([intval($a->argv[2]), intval($o)]);
 874                 }
 875         }
 876
 877         return $o;
 878 }
 879
 880 /**
 881  * This function removes the tag $tag from the text $body and replaces it with
 882  * the appropriate link.
 883  *
 884  * @param App     $a
 885  * @param string  $body     the text to replace the tag in
 886  * @param string  $inform   a comma-seperated string containing everybody to inform
 887  * @param string  $str_tags string to add the tag to
 888  * @param integer $profile_uid
 889  * @param string  $tag      the tag to replace
 890  * @param string  $network  The network of the post
 891  *
 892  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 893  * @throws ImagickException
 894  * @throws HTTPException\InternalServerErrorException
 895  */
 896 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 897 {
 898         $replaced = false;
 899         $r = null;
 900
 901         //is it a person tag?
 902         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 903                 $tag_type = substr($tag, 0, 1);
 904                 //is it already replaced?
 905                 if (strpos($tag, '[url=')) {
 906                         //append tag to str_tags
 907                         if (!stristr($str_tags, $tag)) {
 908                                 if (strlen($str_tags)) {
 909                                         $str_tags .= ',';
 910                                 }
 911                                 $str_tags .= $tag;
 912                         }
 913
 914                         // Checking for the alias that is used for OStatus
 915                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 916                         if (preg_match($pattern, $tag, $matches)) {
 917                                 $data = Contact::getDetailsByURL($matches[1]);
 918
 919                                 if ($data["alias"] != "") {
 920                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 921
 922                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 923                                                 if (strlen($str_tags)) {
 924                                                         $str_tags .= ',';
 925                                                 }
 926
 927                                                 $str_tags .= $newtag;
 928                                         }
 929                                 }
 930                         }
 931
 932                         return $replaced;
 933                 }
 934
 935                 //get the person's name
 936                 $name = substr($tag, 1);
 937
 938                 // Sometimes the tag detection doesn't seem to work right
 939                 // This is some workaround
 940                 $nameparts = explode(" ", $name);
 941                 $name = $nameparts[0];
 942
 943                 // Try to detect the contact in various ways
 944                 if (strpos($name, 'http://')) {
 945                         // At first we have to ensure that the contact exists
 946                         Contact::getIdForURL($name);
 947
 948                         // Now we should have something
 949                         $contact = Contact::getDetailsByURL($name);
 950                 } elseif (strpos($name, '@')) {
 951                         // This function automatically probes when no entry was found
 952                         $contact = Contact::getDetailsByAddr($name);
 953                 } else {
 954                         $contact = false;
 955                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 956
 957                         if (strrpos($name, '+')) {
 958                                 // Is it in format @nick+number?
 959                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 960                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 961                         }
 962
 963                         // select someone by nick or attag in the current network
 964                         if (!DBA::isResult($contact) && ($network != "")) {
 965                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 966                                                 $name, $name, $network, $profile_uid];
 967                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 968                         }
 969
 970                         //select someone by name in the current network
 971                         if (!DBA::isResult($contact) && ($network != "")) {
 972                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 973                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 974                         }
 975
 976                         // select someone by nick or attag in any network
 977                         if (!DBA::isResult($contact)) {
 978                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 979                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 980                         }
 981
 982                         // select someone by name in any network
 983                         if (!DBA::isResult($contact)) {
 984                                 $condition = ['name' => $name, 'uid' => $profile_uid];
 985                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 986                         }
 987                 }
 988
 989                 // Check if $contact has been successfully loaded
 990                 if (DBA::isResult($contact)) {
 991                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
 992                                 $inform .= ',';
 993                         }
 994
 995                         if (isset($contact["id"])) {
 996                                 $inform .= 'cid:' . $contact["id"];
 997                         } elseif (isset($contact["notify"])) {
 998                                 $inform  .= $contact["notify"];
 999                         }
1000
1001                         $profile = $contact["url"];
1002                         $alias   = $contact["alias"];
1003                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1004                 }
1005
1006                 //if there is an url for this persons profile
1007                 if (isset($profile) && ($newname != "")) {
1008                         $replaced = true;
1009                         // create profile link
1010                         $profile = str_replace(',', '%2c', $profile);
1011                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1012                         $body = str_replace($tag_type . $name, $newtag, $body);
1013                         // append tag to str_tags
1014                         if (!stristr($str_tags, $newtag)) {
1015                                 if (strlen($str_tags)) {
1016                                         $str_tags .= ',';
1017                                 }
1018                                 $str_tags .= $newtag;
1019                         }
1020
1021                         /*
1022                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1023                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1024                          */
1025                         if (!empty($alias)) {
1026                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1027                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1028                                         if (strlen($str_tags)) {
1029                                                 $str_tags .= ',';
1030                                         }
1031                                         $str_tags .= $newtag;
1032                                 }
1033                         }
1034                 }
1035         }
1036
1037         return ['replaced' => $replaced, 'contact' => $contact];
1038 }
1039
1040 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1041 {
1042         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1043                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1044                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1045                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1046                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1047                                 $tags[] = $contact;
1048                         }
1049                 }
1050         } else {
1051                 $implicit_mentions = [
1052                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1053                 ];
1054
1055                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1056
1057                 foreach ($parent_terms as $parent_term) {
1058                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1059                 }
1060
1061                 foreach ($implicit_mentions as $url => $label) {
1062                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1063                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1064                         }
1065                 }
1066         }
1067
1068         return $tags;
1069 }