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\BaseObject;
  20 use Friendica\Content\Pager;
  21 use Friendica\Content\Text\BBCode;
  22 use Friendica\Content\Text\HTML;
  23 use Friendica\Core\Config;
  24 use Friendica\Core\Hook;
  25 use Friendica\Core\L10n;
  26 use Friendica\Core\Logger;
  27 use Friendica\Core\Protocol;
  28 use Friendica\Core\Session;
  29 use Friendica\Core\System;
  30 use Friendica\Core\Worker;
  31 use Friendica\Database\DBA;
  32 use Friendica\Model\Attach;
  33 use Friendica\Model\Contact;
  34 use Friendica\Model\Conversation;
  35 use Friendica\Model\FileTag;
  36 use Friendica\Model\Item;
  37 use Friendica\Model\Photo;
  38 use Friendica\Model\Term;
  39 use Friendica\Protocol\Diaspora;
  40 use Friendica\Protocol\Email;
  41 use Friendica\Util\ACLFormatter;
  42 use Friendica\Util\DateTimeFormat;
  43 use Friendica\Util\Emailer;
  44 use Friendica\Util\Security;
  45 use Friendica\Util\Strings;
  46 use Friendica\Worker\Delivery;
  47
  48 require_once __DIR__ . '/../include/items.php';
  49
  50 function item_post(App $a) {
  51         if (!Session::isAuthenticated()) {
  52                 return 0;
  53         }
  54
  55         $uid = local_user();
  56
  57         if (!empty($_REQUEST['dropitems'])) {
  58                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  59                 drop_items($arr_drop);
  60                 $json = ['success' => 1];
  61                 echo json_encode($json);
  62                 exit();
  63         }
  64
  65         Hook::callAll('post_local_start', $_REQUEST);
  66
  67         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  68
  69         $api_source = $_REQUEST['api_source'] ?? false;
  70
  71         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  72
  73         $return_path = $_REQUEST['return'] ?? '';
  74         $preview = intval($_REQUEST['preview'] ?? 0);
  75
  76         /*
  77          * Check for doubly-submitted posts, and reject duplicates
  78          * Note that we have to ignore previews, otherwise nothing will post
  79          * after it's been previewed
  80          */
  81         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  82                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  83                         Logger::log("item post: duplicate post", Logger::DEBUG);
  84                         item_post_return(System::baseUrl(), $api_source, $return_path);
  85                 } else {
  86                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  87                 }
  88         }
  89
  90         // Is this a reply to something?
  91         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
  92         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
  93
  94         $thread_parent_id = 0;
  95         $thread_parent_contact = null;
  96
  97         $toplevel_item = null;
  98         $parent_user = null;
  99
 100         $parent_contact = null;
 101
 102         $objecttype = null;
 103         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 104         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 105
 106         if ($toplevel_item_id || $thr_parent_uri) {
 107                 if ($toplevel_item_id) {
 108                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 109                 } elseif ($thr_parent_uri) {
 110                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 111                 }
 112
 113                 // if this isn't the top-level parent of the conversation, find it
 114                 if (DBA::isResult($toplevel_item)) {
 115                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 116                         $thread_parent_id = $toplevel_item['id'];
 117                         $thr_parent_uri = $toplevel_item['uri'];
 118                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 119
 120                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 121                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 122                         }
 123                 }
 124
 125                 if (!DBA::isResult($toplevel_item)) {
 126                         notice(L10n::t('Unable to locate original post.') . EOL);
 127                         if (!empty($_REQUEST['return'])) {
 128                                 $a->internalRedirect($return_path);
 129                         }
 130                         exit();
 131                 }
 132
 133                 $toplevel_item_id = $toplevel_item['id'];
 134                 $parent_user = $toplevel_item['uid'];
 135
 136                 $objecttype = ACTIVITY_OBJ_COMMENT;
 137         }
 138
 139         if ($toplevel_item_id) {
 140                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 141         }
 142
 143         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 144         $app         = strip_tags($_REQUEST['source'] ?? '');
 145         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 146         $object      = $_REQUEST['object'] ?? '';
 147
 148         // Don't use "defaults" here. It would turn 0 to 1
 149         if (!isset($_REQUEST['wall'])) {
 150                 $wall = 1;
 151         } else {
 152                 $wall = $_REQUEST['wall'];
 153         }
 154
 155         // Ensure that the user id in a thread always stay the same
 156         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 157                 $profile_uid = $parent_user;
 158         }
 159
 160         // Check for multiple posts with the same message id (when the post was created via API)
 161         if (($message_id != '') && ($profile_uid != 0)) {
 162                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 163                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 164                         return 0;
 165                 }
 166         }
 167
 168         // Allow commenting if it is an answer to a public post
 169         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 170
 171         // Now check that valid personal details have been provided
 172         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 173                 notice(L10n::t('Permission denied.') . EOL);
 174
 175                 if (!empty($_REQUEST['return'])) {
 176                         $a->internalRedirect($return_path);
 177                 }
 178
 179                 exit();
 180         }
 181
 182         // Init post instance
 183         $orig_post = null;
 184
 185         // is this an edited post?
 186         if ($post_id > 0) {
 187                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 188         }
 189
 190         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 191
 192         if (!DBA::isResult($user) && !$toplevel_item_id) {
 193                 return 0;
 194         }
 195
 196         $categories = '';
 197         $postopts = '';
 198         $emailcc = '';
 199         $body = $_REQUEST['body'] ?? '';
 200         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 201
 202         // If we have a speparate attachment, we need to add it to the body.
 203         if (!empty($has_attachment)) {
 204                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 205                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 206                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 207
 208                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 209                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 210
 211                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 212                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 213                 $attachment = [
 214                         'type'   => $attachment_type,
 215                         'title'  => $attachment_title,
 216                         'text'   => $attachment_text,
 217                         'url'    => $attachment_url,
 218                 ];
 219
 220                 if (!empty($attachment_img_src)) {
 221                         $attachment['images'] = [
 222                                 0 => [
 223                                         'src'    => $attachment_img_src,
 224                                         'width'  => $attachment_img_width,
 225                                         'height' => $attachment_img_height
 226                                 ]
 227                         ];
 228                 }
 229
 230                 $att_bbcode = add_page_info_data($attachment);
 231                 $body .= $att_bbcode;
 232         }
 233
 234         // Convert links with empty descriptions to links without an explicit description
 235         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 236
 237         if (!empty($orig_post)) {
 238                 $str_group_allow   = $orig_post['allow_gid'];
 239                 $str_contact_allow = $orig_post['allow_cid'];
 240                 $str_group_deny    = $orig_post['deny_gid'];
 241                 $str_contact_deny  = $orig_post['deny_cid'];
 242                 $location          = $orig_post['location'];
 243                 $coord             = $orig_post['coord'];
 244                 $verb              = $orig_post['verb'];
 245                 $objecttype        = $orig_post['object-type'];
 246                 $app               = $orig_post['app'];
 247                 $categories        = $orig_post['file'];
 248                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 249                 $body              = Strings::escapeHtml(trim($body));
 250                 $private           = $orig_post['private'];
 251                 $pubmail_enabled   = $orig_post['pubmail'];
 252                 $network           = $orig_post['network'];
 253                 $guid              = $orig_post['guid'];
 254                 $extid             = $orig_post['extid'];
 255
 256         } else {
 257
 258                 /*
 259                  * if coming from the API and no privacy settings are set,
 260                  * use the user default permissions - as they won't have
 261                  * been supplied via a form.
 262                  */
 263                 if ($api_source
 264                         && !array_key_exists('contact_allow', $_REQUEST)
 265                         && !array_key_exists('group_allow', $_REQUEST)
 266                         && !array_key_exists('contact_deny', $_REQUEST)
 267                         && !array_key_exists('group_deny', $_REQUEST)) {
 268                         $str_group_allow   = $user['allow_gid'];
 269                         $str_contact_allow = $user['allow_cid'];
 270                         $str_group_deny    = $user['deny_gid'];
 271                         $str_contact_deny  = $user['deny_cid'];
 272                 } else {
 273                         // use the posted permissions
 274
 275                         /** @var ACLFormatter $aclFormatter */
 276                         $aclFormatter = BaseObject::getClass(ACLFormatter::class);
 277
 278                         $str_group_allow   = $aclFormatter->toString($_REQUEST['group_allow'] ?? '');
 279                         $str_contact_allow = $aclFormatter->toString($_REQUEST['contact_allow'] ?? '');
 280                         $str_group_deny    = $aclFormatter->toString($_REQUEST['group_deny'] ?? '');
 281                         $str_contact_deny  = $aclFormatter->toString($_REQUEST['contact_deny'] ?? '');
 282                 }
 283
 284                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 285                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 286                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 287                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 288                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 289                 $body              = Strings::escapeHtml(trim($body));
 290                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 291                 $guid              = System::createUUID();
 292
 293                 $postopts = $_REQUEST['postopts'] ?? '';
 294
 295                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 296
 297                 // If this is a comment, set the permissions from the parent.
 298
 299                 if ($toplevel_item) {
 300                         // for non native networks use the network of the original post as network of the item
 301                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 302                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 303                                 && ($network == "")) {
 304                                 $network = $toplevel_item['network'];
 305                         }
 306
 307                         $str_contact_allow = $toplevel_item['allow_cid'];
 308                         $str_group_allow   = $toplevel_item['allow_gid'];
 309                         $str_contact_deny  = $toplevel_item['deny_cid'];
 310                         $str_group_deny    = $toplevel_item['deny_gid'];
 311                         $private           = $toplevel_item['private'];
 312
 313                         $wall              = $toplevel_item['wall'];
 314                 }
 315
 316                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 317
 318                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 319                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 320                         if (function_exists('imap_open') && !Config::get('system', 'imap_disabled')) {
 321                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 322                         }
 323                 }
 324
 325                 if (!strlen($body)) {
 326                         if ($preview) {
 327                                 exit();
 328                         }
 329                         info(L10n::t('Empty post discarded.') . EOL);
 330                         if (!empty($_REQUEST['return'])) {
 331                                 $a->internalRedirect($return_path);
 332                         }
 333                         exit();
 334                 }
 335         }
 336
 337         if (!empty($categories)) {
 338                 // get the "fileas" tags for this post
 339                 $filedas = FileTag::fileToArray($categories);
 340         }
 341
 342         // save old and new categories, so we can determine what needs to be deleted from pconfig
 343         $categories_old = $categories;
 344         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 345         $categories_new = $categories;
 346
 347         if (!empty($filedas) && is_array($filedas)) {
 348                 // append the fileas stuff to the new categories list
 349                 $categories .= FileTag::arrayToFile($filedas);
 350         }
 351
 352         // get contact info for poster
 353
 354         $author = null;
 355         $self   = false;
 356         $contact_id = 0;
 357
 358         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 359                 $self = true;
 360                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 361         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 362                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 363         }
 364
 365         if (DBA::isResult($author)) {
 366                 $contact_id = $author['id'];
 367         }
 368
 369         // get contact info for owner
 370         if ($profile_uid == local_user() || $allow_comment) {
 371                 $contact_record = $author;
 372         } else {
 373                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 374         }
 375
 376         // Look for any tags and linkify them
 377         $str_tags = '';
 378         $inform   = '';
 379
 380         $tags = BBCode::getTags($body);
 381
 382         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 383                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 384         }
 385
 386         $tagged = [];
 387
 388         $private_forum = false;
 389         $only_to_forum = false;
 390         $forum_contact = [];
 391
 392         if (count($tags)) {
 393                 foreach ($tags as $tag) {
 394                         $tag_type = substr($tag, 0, 1);
 395
 396                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 397                                 continue;
 398                         }
 399
 400                         /*
 401                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 402                          * Robert Johnson should be first in the $tags array
 403                          */
 404                         $fullnametagged = false;
 405                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 406                         foreach ($tagged as $nextTag) {
 407                                 if (stristr($nextTag, $tag . ' ')) {
 408                                         $fullnametagged = true;
 409                                         break;
 410                                 }
 411                         }
 412                         if ($fullnametagged) {
 413                                 continue;
 414                         }
 415
 416                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 417                         if ($success['replaced']) {
 418                                 $tagged[] = $tag;
 419                         }
 420                         // When the forum is private or the forum is addressed with a "!" make the post private
 421                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 422                                 $private_forum = $success['contact']['prv'];
 423                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 424                                 $private_id = $success['contact']['id'];
 425                                 $forum_contact = $success['contact'];
 426                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 427                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 428                                 $private_forum = false;
 429                                 $only_to_forum = true;
 430                                 $private_id = $success['contact']['id'];
 431                                 $forum_contact = $success['contact'];
 432                         }
 433                 }
 434         }
 435
 436         $original_contact_id = $contact_id;
 437
 438         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 439                 // we tagged a forum in a top level post. Now we change the post
 440                 $private = $private_forum;
 441
 442                 $str_group_allow = '';
 443                 $str_contact_deny = '';
 444                 $str_group_deny = '';
 445                 if ($private_forum) {
 446                         $str_contact_allow = '<' . $private_id . '>';
 447                 } else {
 448                         $str_contact_allow = '';
 449                 }
 450                 $contact_id = $private_id;
 451                 $contact_record = $forum_contact;
 452                 $_REQUEST['origin'] = false;
 453                 $wall = 0;
 454         }
 455
 456         /*
 457          * When a photo was uploaded into the message using the (profile wall) ajax
 458          * uploader, The permissions are initially set to disallow anybody but the
 459          * owner from seeing it. This is because the permissions may not yet have been
 460          * set for the post. If it's private, the photo permissions should be set
 461          * appropriately. But we didn't know the final permissions on the post until
 462          * now. So now we'll look for links of uploaded messages that are in the
 463          * post and set them to the same permissions as the post itself.
 464          */
 465
 466         $match = null;
 467
 468         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 469                 $objecttype = ACTIVITY_OBJ_IMAGE;
 470         }
 471
 472         /*
 473          * Next link in any attachment references we find in the post.
 474          */
 475         $match = false;
 476
 477         /// @todo these lines should be moved to Model/Attach (Once it exists)
 478         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 479                 $attaches = $match[1];
 480                 if (count($attaches)) {
 481                         foreach ($attaches as $attach) {
 482                                 // Ensure to only modify attachments that you own
 483                                 $srch = '<' . intval($original_contact_id) . '>';
 484
 485                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 486                                                 'id' => $attach];
 487                                 if (!Attach::exists($condition)) {
 488                                         continue;
 489                                 }
 490
 491                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 492                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 493                                 $condition = ['id' => $attach];
 494                                 Attach::update($fields, $condition);
 495                         }
 496                 }
 497         }
 498
 499         // embedded bookmark or attachment in post? set bookmark flag
 500
 501         $data = BBCode::getAttachmentData($body);
 502         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 503                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 504                 $posttype = Item::PT_PAGE;
 505                 $objecttype = ACTIVITY_OBJ_BOOKMARK;
 506         }
 507
 508         /** @var BBCode\Video $bbCodeVideo */
 509         $bbCodeVideo = BaseObject::getClass(BBCode\Video::class);
 510         $body =  $bbCodeVideo->transform($body);
 511
 512         // Fold multi-line [code] sequences
 513         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 514
 515         $body = BBCode::scaleExternalImages($body, false);
 516
 517         // Setting the object type if not defined before
 518         if (!$objecttype) {
 519                 $objecttype = ACTIVITY_OBJ_NOTE; // Default value
 520                 $objectdata = BBCode::getAttachedData($body);
 521
 522                 if ($objectdata["type"] == "link") {
 523                         $objecttype = ACTIVITY_OBJ_BOOKMARK;
 524                 } elseif ($objectdata["type"] == "video") {
 525                         $objecttype = ACTIVITY_OBJ_VIDEO;
 526                 } elseif ($objectdata["type"] == "photo") {
 527                         $objecttype = ACTIVITY_OBJ_IMAGE;
 528                 }
 529
 530         }
 531
 532         $attachments = '';
 533         $match = false;
 534
 535         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 536                 foreach ($match[2] as $mtch) {
 537                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 538                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 539                         if ($attachment !== false) {
 540                                 if (strlen($attachments)) {
 541                                         $attachments .= ',';
 542                                 }
 543                                 $attachments .= '[attach]href="' . System::baseUrl() . '/attach/' . $attachment['id'] .
 544                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 545                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 546                         }
 547                         $body = str_replace($match[1],'',$body);
 548                 }
 549         }
 550
 551         if (!strlen($verb)) {
 552                 $verb = ACTIVITY_POST;
 553         }
 554
 555         if ($network == "") {
 556                 $network = Protocol::DFRN;
 557         }
 558
 559         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 560
 561         // even if the post arrived via API we are considering that it
 562         // originated on this site by default for determining relayability.
 563
 564         // Don't use "defaults" here. It would turn 0 to 1
 565         if (!isset($_REQUEST['origin'])) {
 566                 $origin = 1;
 567         } else {
 568                 $origin = $_REQUEST['origin'];
 569         }
 570
 571         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 572
 573         // Fallback so that we alway have a parent uri
 574         if (!$thr_parent_uri || !$toplevel_item_id) {
 575                 $thr_parent_uri = $uri;
 576         }
 577
 578         $datarray = [];
 579         $datarray['uid']           = $profile_uid;
 580         $datarray['wall']          = $wall;
 581         $datarray['gravity']       = $gravity;
 582         $datarray['network']       = $network;
 583         $datarray['contact-id']    = $contact_id;
 584         $datarray['owner-name']    = $contact_record['name'];
 585         $datarray['owner-link']    = $contact_record['url'];
 586         $datarray['owner-avatar']  = $contact_record['thumb'];
 587         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 588         $datarray['author-name']   = $author['name'];
 589         $datarray['author-link']   = $author['url'];
 590         $datarray['author-avatar'] = $author['thumb'];
 591         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 592         $datarray['created']       = DateTimeFormat::utcNow();
 593         $datarray['edited']        = DateTimeFormat::utcNow();
 594         $datarray['commented']     = DateTimeFormat::utcNow();
 595         $datarray['received']      = DateTimeFormat::utcNow();
 596         $datarray['changed']       = DateTimeFormat::utcNow();
 597         $datarray['extid']         = $extid;
 598         $datarray['guid']          = $guid;
 599         $datarray['uri']           = $uri;
 600         $datarray['title']         = $title;
 601         $datarray['body']          = $body;
 602         $datarray['app']           = $app;
 603         $datarray['location']      = $location;
 604         $datarray['coord']         = $coord;
 605         $datarray['tag']           = $str_tags;
 606         $datarray['file']          = $categories;
 607         $datarray['inform']        = $inform;
 608         $datarray['verb']          = $verb;
 609         $datarray['post-type']     = $posttype;
 610         $datarray['object-type']   = $objecttype;
 611         $datarray['allow_cid']     = $str_contact_allow;
 612         $datarray['allow_gid']     = $str_group_allow;
 613         $datarray['deny_cid']      = $str_contact_deny;
 614         $datarray['deny_gid']      = $str_group_deny;
 615         $datarray['private']       = $private;
 616         $datarray['pubmail']       = $pubmail_enabled;
 617         $datarray['attach']        = $attachments;
 618
 619         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 620         $datarray['parent-uri']    = $thr_parent_uri;
 621
 622         $datarray['postopts']      = $postopts;
 623         $datarray['origin']        = $origin;
 624         $datarray['moderated']     = false;
 625         $datarray['object']        = $object;
 626
 627         /*
 628          * These fields are for the convenience of addons...
 629          * 'self' if true indicates the owner is posting on their own wall
 630          * If parent is 0 it is a top-level post.
 631          */
 632         $datarray['parent']        = $toplevel_item_id;
 633         $datarray['self']          = $self;
 634
 635         // This triggers posts via API and the mirror functions
 636         $datarray['api_source'] = $api_source;
 637
 638         // This field is for storing the raw conversation data
 639         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 640
 641         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 642         if (DBA::isResult($conversation)) {
 643                 if ($conversation['conversation-uri'] != '') {
 644                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 645                 }
 646                 if ($conversation['conversation-href'] != '') {
 647                         $datarray['conversation-href'] = $conversation['conversation-href'];
 648                 }
 649         }
 650
 651         if ($orig_post) {
 652                 $datarray['edit'] = true;
 653         } else {
 654                 $datarray['edit'] = false;
 655         }
 656
 657         // Check for hashtags in the body and repair or add hashtag links
 658         if ($preview || $orig_post) {
 659                 Item::setHashtags($datarray);
 660         }
 661
 662         // preview mode - prepare the body for display and send it via json
 663         if ($preview) {
 664                 // We set the datarray ID to -1 because in preview mode the dataray
 665                 // doesn't have an ID.
 666                 $datarray["id"] = -1;
 667                 $datarray["item_id"] = -1;
 668                 $datarray["author-network"] = Protocol::DFRN;
 669
 670                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager($a->query_string), 'search', false, true);
 671                 Logger::log('preview: ' . $o);
 672                 echo json_encode(['preview' => $o]);
 673                 exit();
 674         }
 675
 676         Hook::callAll('post_local',$datarray);
 677
 678         if (!empty($datarray['cancel'])) {
 679                 Logger::log('mod_item: post cancelled by addon.');
 680                 if ($return_path) {
 681                         $a->internalRedirect($return_path);
 682                 }
 683
 684                 $json = ['cancel' => 1];
 685                 if (!empty($_REQUEST['jsreload'])) {
 686                         $json['reload'] = System::baseUrl() . '/' . $_REQUEST['jsreload'];
 687                 }
 688
 689                 echo json_encode($json);
 690                 exit();
 691         }
 692
 693         if ($orig_post) {
 694                 // Fill the cache field
 695                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 696                 Item::putInCache($datarray);
 697
 698                 $fields = [
 699                         'title' => $datarray['title'],
 700                         'body' => $datarray['body'],
 701                         'tag' => $datarray['tag'],
 702                         'attach' => $datarray['attach'],
 703                         'file' => $datarray['file'],
 704                         'rendered-html' => $datarray['rendered-html'],
 705                         'rendered-hash' => $datarray['rendered-hash'],
 706                         'edited' => DateTimeFormat::utcNow(),
 707                         'changed' => DateTimeFormat::utcNow()];
 708
 709                 Item::update($fields, ['id' => $post_id]);
 710
 711                 // update filetags in pconfig
 712                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 713
 714                 if (!empty($_REQUEST['return']) && strlen($return_path)) {
 715                         Logger::log('return: ' . $return_path);
 716                         $a->internalRedirect($return_path);
 717                 }
 718                 exit();
 719         }
 720
 721         unset($datarray['edit']);
 722         unset($datarray['self']);
 723         unset($datarray['api_source']);
 724
 725         if ($origin) {
 726                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 727                 if (!empty($signed)) {
 728                         $datarray['diaspora_signed_text'] = json_encode($signed);
 729                 }
 730         }
 731
 732         $post_id = Item::insert($datarray);
 733
 734         if (!$post_id) {
 735                 Logger::log("Item wasn't stored.");
 736                 $a->internalRedirect($return_path);
 737         }
 738
 739         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 740
 741         if (!DBA::isResult($datarray)) {
 742                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 743                 $a->internalRedirect($return_path);
 744         }
 745
 746         // update filetags in pconfig
 747         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 748
 749         // These notifications are sent if someone else is commenting other your wall
 750         if ($toplevel_item_id) {
 751                 if ($contact_record != $author) {
 752                         notification([
 753                                 'type'         => NOTIFY_COMMENT,
 754                                 'notify_flags' => $user['notify-flags'],
 755                                 'language'     => $user['language'],
 756                                 'to_name'      => $user['username'],
 757                                 'to_email'     => $user['email'],
 758                                 'uid'          => $user['uid'],
 759                                 'item'         => $datarray,
 760                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 761                                 'source_name'  => $datarray['author-name'],
 762                                 'source_link'  => $datarray['author-link'],
 763                                 'source_photo' => $datarray['author-avatar'],
 764                                 'verb'         => ACTIVITY_POST,
 765                                 'otype'        => 'item',
 766                                 'parent'       => $toplevel_item_id,
 767                                 'parent_uri'   => $toplevel_item['uri']
 768                         ]);
 769                 }
 770         } else {
 771                 if (($contact_record != $author) && !count($forum_contact)) {
 772                         notification([
 773                                 'type'         => NOTIFY_WALL,
 774                                 'notify_flags' => $user['notify-flags'],
 775                                 'language'     => $user['language'],
 776                                 'to_name'      => $user['username'],
 777                                 'to_email'     => $user['email'],
 778                                 'uid'          => $user['uid'],
 779                                 'item'         => $datarray,
 780                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 781                                 'source_name'  => $datarray['author-name'],
 782                                 'source_link'  => $datarray['author-link'],
 783                                 'source_photo' => $datarray['author-avatar'],
 784                                 'verb'         => ACTIVITY_POST,
 785                                 'otype'        => 'item'
 786                         ]);
 787                 }
 788         }
 789
 790         Hook::callAll('post_local_end', $datarray);
 791
 792         if (strlen($emailcc) && $profile_uid == local_user()) {
 793                 $erecips = explode(',', $emailcc);
 794                 if (count($erecips)) {
 795                         foreach ($erecips as $recip) {
 796                                 $addr = trim($recip);
 797                                 if (!strlen($addr)) {
 798                                         continue;
 799                                 }
 800                                 $disclaimer = '<hr />' . L10n::t('This message was sent to you by %s, a member of the Friendica social network.', $a->user['username'])
 801                                         . '<br />';
 802                                 $disclaimer .= L10n::t('You may visit them online at %s', System::baseUrl() . '/profile/' . $a->user['nickname']) . EOL;
 803                                 $disclaimer .= L10n::t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 804                                 if (!$datarray['title']=='') {
 805                                         $subject = Email::encodeHeader($datarray['title'], 'UTF-8');
 806                                 } else {
 807                                         $subject = Email::encodeHeader('[Friendica]' . ' ' . L10n::t('%s posted an update.', $a->user['username']), 'UTF-8');
 808                                 }
 809                                 $link = '<a href="' . System::baseUrl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 810                                 $html    = Item::prepareBody($datarray);
 811                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 812                                 $params =  [
 813                                         'fromName' => $a->user['username'],
 814                                         'fromEmail' => $a->user['email'],
 815                                         'toEmail' => $addr,
 816                                         'replyTo' => $a->user['email'],
 817                                         'messageSubject' => $subject,
 818                                         'htmlVersion' => $message,
 819                                         'textVersion' => HTML::toPlaintext($html.$disclaimer)
 820                                 ];
 821                                 Emailer::send($params);
 822                         }
 823                 }
 824         }
 825
 826         // Insert an item entry for UID=0 for global entries.
 827         // We now do it in the background to save some time.
 828         // This is important in interactive environments like the frontend or the API.
 829         // We don't fork a new process since this is done anyway with the following command
 830         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 831
 832         // When we are doing some forum posting via ! we have to start the notifier manually.
 833         // These kind of posts don't initiate the notifier call in the item class.
 834         if ($only_to_forum) {
 835                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 836         }
 837
 838         Logger::log('post_complete');
 839
 840         if ($api_source) {
 841                 return $post_id;
 842         }
 843
 844         item_post_return(System::baseUrl(), $api_source, $return_path);
 845         // NOTREACHED
 846 }
 847
 848 function item_post_return($baseurl, $api_source, $return_path)
 849 {
 850         // figure out how to return, depending on from whence we came
 851     $a = \get_app();
 852
 853         if ($api_source) {
 854                 return;
 855         }
 856
 857         if ($return_path) {
 858                 $a->internalRedirect($return_path);
 859         }
 860
 861         $json = ['success' => 1];
 862         if (!empty($_REQUEST['jsreload'])) {
 863                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 864         }
 865
 866         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 867
 868         echo json_encode($json);
 869         exit();
 870 }
 871
 872 function item_content(App $a)
 873 {
 874         if (!Session::isAuthenticated()) {
 875                 return;
 876         }
 877
 878         $o = '';
 879
 880         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 881                 if ($a->isAjax()) {
 882                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 883                 } else {
 884                         if (!empty($a->argv[3])) {
 885                                 $o = drop_item($a->argv[2], $a->argv[3]);
 886                         }
 887                         else {
 888                                 $o = drop_item($a->argv[2]);
 889                         }
 890                 }
 891
 892                 if ($a->isAjax()) {
 893                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 894                         echo json_encode([intval($a->argv[2]), intval($o)]);
 895                         exit();
 896                 }
 897         }
 898
 899         return $o;
 900 }
 901
 902 /**
 903  * This function removes the tag $tag from the text $body and replaces it with
 904  * the appropriate link.
 905  *
 906  * @param App     $a
 907  * @param string  $body     the text to replace the tag in
 908  * @param string  $inform   a comma-seperated string containing everybody to inform
 909  * @param string  $str_tags string to add the tag to
 910  * @param integer $profile_uid
 911  * @param string  $tag      the tag to replace
 912  * @param string  $network  The network of the post
 913  *
 914  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 915  * @throws ImagickException
 916  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 917  */
 918 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 919 {
 920         $replaced = false;
 921         $r = null;
 922
 923         //is it a person tag?
 924         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 925                 $tag_type = substr($tag, 0, 1);
 926                 //is it already replaced?
 927                 if (strpos($tag, '[url=')) {
 928                         //append tag to str_tags
 929                         if (!stristr($str_tags, $tag)) {
 930                                 if (strlen($str_tags)) {
 931                                         $str_tags .= ',';
 932                                 }
 933                                 $str_tags .= $tag;
 934                         }
 935
 936                         // Checking for the alias that is used for OStatus
 937                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 938                         if (preg_match($pattern, $tag, $matches)) {
 939                                 $data = Contact::getDetailsByURL($matches[1]);
 940
 941                                 if ($data["alias"] != "") {
 942                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 943
 944                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 945                                                 if (strlen($str_tags)) {
 946                                                         $str_tags .= ',';
 947                                                 }
 948
 949                                                 $str_tags .= $newtag;
 950                                         }
 951                                 }
 952                         }
 953
 954                         return $replaced;
 955                 }
 956
 957                 //get the person's name
 958                 $name = substr($tag, 1);
 959
 960                 // Sometimes the tag detection doesn't seem to work right
 961                 // This is some workaround
 962                 $nameparts = explode(" ", $name);
 963                 $name = $nameparts[0];
 964
 965                 // Try to detect the contact in various ways
 966                 if (strpos($name, 'http://')) {
 967                         // At first we have to ensure that the contact exists
 968                         Contact::getIdForURL($name);
 969
 970                         // Now we should have something
 971                         $contact = Contact::getDetailsByURL($name);
 972                 } elseif (strpos($name, '@')) {
 973                         // This function automatically probes when no entry was found
 974                         $contact = Contact::getDetailsByAddr($name);
 975                 } else {
 976                         $contact = false;
 977                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 978
 979                         if (strrpos($name, '+')) {
 980                                 // Is it in format @nick+number?
 981                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 982                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 983                         }
 984
 985                         // select someone by nick or attag in the current network
 986                         if (!DBA::isResult($contact) && ($network != "")) {
 987                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 988                                                 $name, $name, $network, $profile_uid];
 989                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 990                         }
 991
 992                         //select someone by name in the current network
 993                         if (!DBA::isResult($contact) && ($network != "")) {
 994                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 995                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 996                         }
 997
 998                         // select someone by nick or attag in any network
 999                         if (!DBA::isResult($contact)) {
1000                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
1001                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1002                         }
1003
1004                         // select someone by name in any network
1005                         if (!DBA::isResult($contact)) {
1006                                 $condition = ['name' => $name, 'uid' => $profile_uid];
1007                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1008                         }
1009                 }
1010
1011                 // Check if $contact has been successfully loaded
1012                 if (DBA::isResult($contact)) {
1013                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
1014                                 $inform .= ',';
1015                         }
1016
1017                         if (isset($contact["id"])) {
1018                                 $inform .= 'cid:' . $contact["id"];
1019                         } elseif (isset($contact["notify"])) {
1020                                 $inform  .= $contact["notify"];
1021                         }
1022
1023                         $profile = $contact["url"];
1024                         $alias   = $contact["alias"];
1025                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1026                 }
1027
1028                 //if there is an url for this persons profile
1029                 if (isset($profile) && ($newname != "")) {
1030                         $replaced = true;
1031                         // create profile link
1032                         $profile = str_replace(',', '%2c', $profile);
1033                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1034                         $body = str_replace($tag_type . $name, $newtag, $body);
1035                         // append tag to str_tags
1036                         if (!stristr($str_tags, $newtag)) {
1037                                 if (strlen($str_tags)) {
1038                                         $str_tags .= ',';
1039                                 }
1040                                 $str_tags .= $newtag;
1041                         }
1042
1043                         /*
1044                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1045                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1046                          */
1047                         if (!empty($alias)) {
1048                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1049                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1050                                         if (strlen($str_tags)) {
1051                                                 $str_tags .= ',';
1052                                         }
1053                                         $str_tags .= $newtag;
1054                                 }
1055                         }
1056                 }
1057         }
1058
1059         return ['replaced' => $replaced, 'contact' => $contact];
1060 }
1061
1062 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1063 {
1064         if (Config::get('system', 'disable_implicit_mentions')) {
1065                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1066                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1067                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1068                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1069                                 $tags[] = $contact;
1070                         }
1071                 }
1072         } else {
1073                 $implicit_mentions = [
1074                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1075                 ];
1076
1077                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1078
1079                 foreach ($parent_terms as $parent_term) {
1080                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1081                 }
1082
1083                 foreach ($implicit_mentions as $url => $label) {
1084                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1085                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1086                         }
1087                 }
1088         }
1089
1090         return $tags;
1091 }