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\Activity;
  40 use Friendica\Protocol\Diaspora;
  41 use Friendica\Protocol\Email;
  42 use Friendica\Util\ACLFormatter;
  43 use Friendica\Util\DateTimeFormat;
  44 use Friendica\Util\Emailer;
  45 use Friendica\Util\Security;
  46 use Friendica\Util\Strings;
  47 use Friendica\Worker\Delivery;
  48
  49 require_once __DIR__ . '/../include/items.php';
  50
  51 function item_post(App $a) {
  52         if (!Session::isAuthenticated()) {
  53                 return 0;
  54         }
  55
  56         $uid = local_user();
  57
  58         if (!empty($_REQUEST['dropitems'])) {
  59                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  60                 drop_items($arr_drop);
  61                 $json = ['success' => 1];
  62                 echo json_encode($json);
  63                 exit();
  64         }
  65
  66         Hook::callAll('post_local_start', $_REQUEST);
  67
  68         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  69
  70         $api_source = $_REQUEST['api_source'] ?? false;
  71
  72         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  73
  74         $return_path = $_REQUEST['return'] ?? '';
  75         $preview = intval($_REQUEST['preview'] ?? 0);
  76
  77         /*
  78          * Check for doubly-submitted posts, and reject duplicates
  79          * Note that we have to ignore previews, otherwise nothing will post
  80          * after it's been previewed
  81          */
  82         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  83                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  84                         Logger::log("item post: duplicate post", Logger::DEBUG);
  85                         item_post_return(System::baseUrl(), $api_source, $return_path);
  86                 } else {
  87                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  88                 }
  89         }
  90
  91         // Is this a reply to something?
  92         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
  93         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
  94
  95         $thread_parent_id = 0;
  96         $thread_parent_contact = null;
  97
  98         $toplevel_item = null;
  99         $parent_user = null;
 100
 101         $parent_contact = null;
 102
 103         $objecttype = null;
 104         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 105         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 106
 107         if ($toplevel_item_id || $thr_parent_uri) {
 108                 if ($toplevel_item_id) {
 109                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 110                 } elseif ($thr_parent_uri) {
 111                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 112                 }
 113
 114                 // if this isn't the top-level parent of the conversation, find it
 115                 if (DBA::isResult($toplevel_item)) {
 116                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 117                         $thread_parent_id = $toplevel_item['id'];
 118                         $thr_parent_uri = $toplevel_item['uri'];
 119                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 120
 121                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 122                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 123                         }
 124                 }
 125
 126                 if (!DBA::isResult($toplevel_item)) {
 127                         notice(L10n::t('Unable to locate original post.') . EOL);
 128                         if (!empty($_REQUEST['return'])) {
 129                                 $a->internalRedirect($return_path);
 130                         }
 131                         exit();
 132                 }
 133
 134                 $toplevel_item_id = $toplevel_item['id'];
 135                 $parent_user = $toplevel_item['uid'];
 136
 137                 $objecttype = Activity\ObjectType::COMMENT;
 138         }
 139
 140         if ($toplevel_item_id) {
 141                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 142         }
 143
 144         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 145         $app         = strip_tags($_REQUEST['source'] ?? '');
 146         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 147         $object      = $_REQUEST['object'] ?? '';
 148
 149         // Don't use "defaults" here. It would turn 0 to 1
 150         if (!isset($_REQUEST['wall'])) {
 151                 $wall = 1;
 152         } else {
 153                 $wall = $_REQUEST['wall'];
 154         }
 155
 156         // Ensure that the user id in a thread always stay the same
 157         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 158                 $profile_uid = $parent_user;
 159         }
 160
 161         // Check for multiple posts with the same message id (when the post was created via API)
 162         if (($message_id != '') && ($profile_uid != 0)) {
 163                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 164                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 165                         return 0;
 166                 }
 167         }
 168
 169         // Allow commenting if it is an answer to a public post
 170         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 171
 172         // Now check that valid personal details have been provided
 173         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 174                 notice(L10n::t('Permission denied.') . EOL);
 175
 176                 if (!empty($_REQUEST['return'])) {
 177                         $a->internalRedirect($return_path);
 178                 }
 179
 180                 exit();
 181         }
 182
 183         // Init post instance
 184         $orig_post = null;
 185
 186         // is this an edited post?
 187         if ($post_id > 0) {
 188                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 189         }
 190
 191         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 192
 193         if (!DBA::isResult($user) && !$toplevel_item_id) {
 194                 return 0;
 195         }
 196
 197         $categories = '';
 198         $postopts = '';
 199         $emailcc = '';
 200         $body = $_REQUEST['body'] ?? '';
 201         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 202
 203         // If we have a speparate attachment, we need to add it to the body.
 204         if (!empty($has_attachment)) {
 205                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 206                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 207                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 208
 209                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 210                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 211
 212                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 213                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 214                 $attachment = [
 215                         'type'   => $attachment_type,
 216                         'title'  => $attachment_title,
 217                         'text'   => $attachment_text,
 218                         'url'    => $attachment_url,
 219                 ];
 220
 221                 if (!empty($attachment_img_src)) {
 222                         $attachment['images'] = [
 223                                 0 => [
 224                                         'src'    => $attachment_img_src,
 225                                         'width'  => $attachment_img_width,
 226                                         'height' => $attachment_img_height
 227                                 ]
 228                         ];
 229                 }
 230
 231                 $att_bbcode = add_page_info_data($attachment);
 232                 $body .= $att_bbcode;
 233         }
 234
 235         // Convert links with empty descriptions to links without an explicit description
 236         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 237
 238         if (!empty($orig_post)) {
 239                 $str_group_allow   = $orig_post['allow_gid'];
 240                 $str_contact_allow = $orig_post['allow_cid'];
 241                 $str_group_deny    = $orig_post['deny_gid'];
 242                 $str_contact_deny  = $orig_post['deny_cid'];
 243                 $location          = $orig_post['location'];
 244                 $coord             = $orig_post['coord'];
 245                 $verb              = $orig_post['verb'];
 246                 $objecttype        = $orig_post['object-type'];
 247                 $app               = $orig_post['app'];
 248                 $categories        = $orig_post['file'];
 249                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 250                 $body              = Strings::escapeHtml(trim($body));
 251                 $private           = $orig_post['private'];
 252                 $pubmail_enabled   = $orig_post['pubmail'];
 253                 $network           = $orig_post['network'];
 254                 $guid              = $orig_post['guid'];
 255                 $extid             = $orig_post['extid'];
 256
 257         } else {
 258
 259                 /*
 260                  * if coming from the API and no privacy settings are set,
 261                  * use the user default permissions - as they won't have
 262                  * been supplied via a form.
 263                  */
 264                 if ($api_source
 265                         && !array_key_exists('contact_allow', $_REQUEST)
 266                         && !array_key_exists('group_allow', $_REQUEST)
 267                         && !array_key_exists('contact_deny', $_REQUEST)
 268                         && !array_key_exists('group_deny', $_REQUEST)) {
 269                         $str_group_allow   = $user['allow_gid'];
 270                         $str_contact_allow = $user['allow_cid'];
 271                         $str_group_deny    = $user['deny_gid'];
 272                         $str_contact_deny  = $user['deny_cid'];
 273                 } else {
 274                         // use the posted permissions
 275
 276                         /** @var ACLFormatter $aclFormatter */
 277                         $aclFormatter = BaseObject::getClass(ACLFormatter::class);
 278
 279                         $str_group_allow   = $aclFormatter->toString($_REQUEST['group_allow'] ?? '');
 280                         $str_contact_allow = $aclFormatter->toString($_REQUEST['contact_allow'] ?? '');
 281                         $str_group_deny    = $aclFormatter->toString($_REQUEST['group_deny'] ?? '');
 282                         $str_contact_deny  = $aclFormatter->toString($_REQUEST['contact_deny'] ?? '');
 283                 }
 284
 285                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 286                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 287                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 288                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 289                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 290                 $body              = Strings::escapeHtml(trim($body));
 291                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 292                 $guid              = System::createUUID();
 293
 294                 $postopts = $_REQUEST['postopts'] ?? '';
 295
 296                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 297
 298                 // If this is a comment, set the permissions from the parent.
 299
 300                 if ($toplevel_item) {
 301                         // for non native networks use the network of the original post as network of the item
 302                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 303                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 304                                 && ($network == "")) {
 305                                 $network = $toplevel_item['network'];
 306                         }
 307
 308                         $str_contact_allow = $toplevel_item['allow_cid'];
 309                         $str_group_allow   = $toplevel_item['allow_gid'];
 310                         $str_contact_deny  = $toplevel_item['deny_cid'];
 311                         $str_group_deny    = $toplevel_item['deny_gid'];
 312                         $private           = $toplevel_item['private'];
 313
 314                         $wall              = $toplevel_item['wall'];
 315                 }
 316
 317                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 318
 319                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 320                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 321                         if (function_exists('imap_open') && !Config::get('system', 'imap_disabled')) {
 322                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 323                         }
 324                 }
 325
 326                 if (!strlen($body)) {
 327                         if ($preview) {
 328                                 exit();
 329                         }
 330                         info(L10n::t('Empty post discarded.') . EOL);
 331                         if (!empty($_REQUEST['return'])) {
 332                                 $a->internalRedirect($return_path);
 333                         }
 334                         exit();
 335                 }
 336         }
 337
 338         if (!empty($categories)) {
 339                 // get the "fileas" tags for this post
 340                 $filedas = FileTag::fileToArray($categories);
 341         }
 342
 343         // save old and new categories, so we can determine what needs to be deleted from pconfig
 344         $categories_old = $categories;
 345         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 346         $categories_new = $categories;
 347
 348         if (!empty($filedas) && is_array($filedas)) {
 349                 // append the fileas stuff to the new categories list
 350                 $categories .= FileTag::arrayToFile($filedas);
 351         }
 352
 353         // get contact info for poster
 354
 355         $author = null;
 356         $self   = false;
 357         $contact_id = 0;
 358
 359         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 360                 $self = true;
 361                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 362         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 363                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 364         }
 365
 366         if (DBA::isResult($author)) {
 367                 $contact_id = $author['id'];
 368         }
 369
 370         // get contact info for owner
 371         if ($profile_uid == local_user() || $allow_comment) {
 372                 $contact_record = $author;
 373         } else {
 374                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 375         }
 376
 377         // Look for any tags and linkify them
 378         $str_tags = '';
 379         $inform   = '';
 380
 381         $tags = BBCode::getTags($body);
 382
 383         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 384                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 385         }
 386
 387         $tagged = [];
 388
 389         $private_forum = false;
 390         $only_to_forum = false;
 391         $forum_contact = [];
 392
 393         if (count($tags)) {
 394                 foreach ($tags as $tag) {
 395                         $tag_type = substr($tag, 0, 1);
 396
 397                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 398                                 continue;
 399                         }
 400
 401                         /*
 402                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 403                          * Robert Johnson should be first in the $tags array
 404                          */
 405                         $fullnametagged = false;
 406                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 407                         foreach ($tagged as $nextTag) {
 408                                 if (stristr($nextTag, $tag . ' ')) {
 409                                         $fullnametagged = true;
 410                                         break;
 411                                 }
 412                         }
 413                         if ($fullnametagged) {
 414                                 continue;
 415                         }
 416
 417                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 418                         if ($success['replaced']) {
 419                                 $tagged[] = $tag;
 420                         }
 421                         // When the forum is private or the forum is addressed with a "!" make the post private
 422                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 423                                 $private_forum = $success['contact']['prv'];
 424                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 425                                 $private_id = $success['contact']['id'];
 426                                 $forum_contact = $success['contact'];
 427                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 428                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 429                                 $private_forum = false;
 430                                 $only_to_forum = true;
 431                                 $private_id = $success['contact']['id'];
 432                                 $forum_contact = $success['contact'];
 433                         }
 434                 }
 435         }
 436
 437         $original_contact_id = $contact_id;
 438
 439         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 440                 // we tagged a forum in a top level post. Now we change the post
 441                 $private = $private_forum;
 442
 443                 $str_group_allow = '';
 444                 $str_contact_deny = '';
 445                 $str_group_deny = '';
 446                 if ($private_forum) {
 447                         $str_contact_allow = '<' . $private_id . '>';
 448                 } else {
 449                         $str_contact_allow = '';
 450                 }
 451                 $contact_id = $private_id;
 452                 $contact_record = $forum_contact;
 453                 $_REQUEST['origin'] = false;
 454                 $wall = 0;
 455         }
 456
 457         /*
 458          * When a photo was uploaded into the message using the (profile wall) ajax
 459          * uploader, The permissions are initially set to disallow anybody but the
 460          * owner from seeing it. This is because the permissions may not yet have been
 461          * set for the post. If it's private, the photo permissions should be set
 462          * appropriately. But we didn't know the final permissions on the post until
 463          * now. So now we'll look for links of uploaded messages that are in the
 464          * post and set them to the same permissions as the post itself.
 465          */
 466
 467         $match = null;
 468
 469         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 470                 $objecttype = Activity\ObjectType::IMAGE;
 471         }
 472
 473         /*
 474          * Next link in any attachment references we find in the post.
 475          */
 476         $match = false;
 477
 478         /// @todo these lines should be moved to Model/Attach (Once it exists)
 479         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 480                 $attaches = $match[1];
 481                 if (count($attaches)) {
 482                         foreach ($attaches as $attach) {
 483                                 // Ensure to only modify attachments that you own
 484                                 $srch = '<' . intval($original_contact_id) . '>';
 485
 486                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 487                                                 'id' => $attach];
 488                                 if (!Attach::exists($condition)) {
 489                                         continue;
 490                                 }
 491
 492                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 493                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 494                                 $condition = ['id' => $attach];
 495                                 Attach::update($fields, $condition);
 496                         }
 497                 }
 498         }
 499
 500         // embedded bookmark or attachment in post? set bookmark flag
 501
 502         $data = BBCode::getAttachmentData($body);
 503         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 504                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 505                 $posttype = Item::PT_PAGE;
 506                 $objecttype =  Activity\ObjectType::BOOKMARK;
 507         }
 508
 509         /** @var BBCode\Video $bbCodeVideo */
 510         $bbCodeVideo = BaseObject::getClass(BBCode\Video::class);
 511         $body =  $bbCodeVideo->transform($body);
 512
 513         // Fold multi-line [code] sequences
 514         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 515
 516         $body = BBCode::scaleExternalImages($body, false);
 517
 518         // Setting the object type if not defined before
 519         if (!$objecttype) {
 520                 $objecttype = Activity\ObjectType::NOTE; // Default value
 521                 $objectdata = BBCode::getAttachedData($body);
 522
 523                 if ($objectdata["type"] == "link") {
 524                         $objecttype = Activity\ObjectType::BOOKMARK;
 525                 } elseif ($objectdata["type"] == "video") {
 526                         $objecttype = Activity\ObjectType::VIDEO;
 527                 } elseif ($objectdata["type"] == "photo") {
 528                         $objecttype = Activity\ObjectType::IMAGE;
 529                 }
 530
 531         }
 532
 533         $attachments = '';
 534         $match = false;
 535
 536         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 537                 foreach ($match[2] as $mtch) {
 538                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 539                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 540                         if ($attachment !== false) {
 541                                 if (strlen($attachments)) {
 542                                         $attachments .= ',';
 543                                 }
 544                                 $attachments .= '[attach]href="' . System::baseUrl() . '/attach/' . $attachment['id'] .
 545                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 546                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 547                         }
 548                         $body = str_replace($match[1],'',$body);
 549                 }
 550         }
 551
 552         if (!strlen($verb)) {
 553                 $verb = Activity::POST;
 554         }
 555
 556         if ($network == "") {
 557                 $network = Protocol::DFRN;
 558         }
 559
 560         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 561
 562         // even if the post arrived via API we are considering that it
 563         // originated on this site by default for determining relayability.
 564
 565         // Don't use "defaults" here. It would turn 0 to 1
 566         if (!isset($_REQUEST['origin'])) {
 567                 $origin = 1;
 568         } else {
 569                 $origin = $_REQUEST['origin'];
 570         }
 571
 572         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 573
 574         // Fallback so that we alway have a parent uri
 575         if (!$thr_parent_uri || !$toplevel_item_id) {
 576                 $thr_parent_uri = $uri;
 577         }
 578
 579         $datarray = [];
 580         $datarray['uid']           = $profile_uid;
 581         $datarray['wall']          = $wall;
 582         $datarray['gravity']       = $gravity;
 583         $datarray['network']       = $network;
 584         $datarray['contact-id']    = $contact_id;
 585         $datarray['owner-name']    = $contact_record['name'];
 586         $datarray['owner-link']    = $contact_record['url'];
 587         $datarray['owner-avatar']  = $contact_record['thumb'];
 588         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 589         $datarray['author-name']   = $author['name'];
 590         $datarray['author-link']   = $author['url'];
 591         $datarray['author-avatar'] = $author['thumb'];
 592         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 593         $datarray['created']       = DateTimeFormat::utcNow();
 594         $datarray['edited']        = DateTimeFormat::utcNow();
 595         $datarray['commented']     = DateTimeFormat::utcNow();
 596         $datarray['received']      = DateTimeFormat::utcNow();
 597         $datarray['changed']       = DateTimeFormat::utcNow();
 598         $datarray['extid']         = $extid;
 599         $datarray['guid']          = $guid;
 600         $datarray['uri']           = $uri;
 601         $datarray['title']         = $title;
 602         $datarray['body']          = $body;
 603         $datarray['app']           = $app;
 604         $datarray['location']      = $location;
 605         $datarray['coord']         = $coord;
 606         $datarray['tag']           = $str_tags;
 607         $datarray['file']          = $categories;
 608         $datarray['inform']        = $inform;
 609         $datarray['verb']          = $verb;
 610         $datarray['post-type']     = $posttype;
 611         $datarray['object-type']   = $objecttype;
 612         $datarray['allow_cid']     = $str_contact_allow;
 613         $datarray['allow_gid']     = $str_group_allow;
 614         $datarray['deny_cid']      = $str_contact_deny;
 615         $datarray['deny_gid']      = $str_group_deny;
 616         $datarray['private']       = $private;
 617         $datarray['pubmail']       = $pubmail_enabled;
 618         $datarray['attach']        = $attachments;
 619
 620         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 621         $datarray['parent-uri']    = $thr_parent_uri;
 622
 623         $datarray['postopts']      = $postopts;
 624         $datarray['origin']        = $origin;
 625         $datarray['moderated']     = false;
 626         $datarray['object']        = $object;
 627
 628         /*
 629          * These fields are for the convenience of addons...
 630          * 'self' if true indicates the owner is posting on their own wall
 631          * If parent is 0 it is a top-level post.
 632          */
 633         $datarray['parent']        = $toplevel_item_id;
 634         $datarray['self']          = $self;
 635
 636         // This triggers posts via API and the mirror functions
 637         $datarray['api_source'] = $api_source;
 638
 639         // This field is for storing the raw conversation data
 640         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 641
 642         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 643         if (DBA::isResult($conversation)) {
 644                 if ($conversation['conversation-uri'] != '') {
 645                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 646                 }
 647                 if ($conversation['conversation-href'] != '') {
 648                         $datarray['conversation-href'] = $conversation['conversation-href'];
 649                 }
 650         }
 651
 652         if ($orig_post) {
 653                 $datarray['edit'] = true;
 654         } else {
 655                 $datarray['edit'] = false;
 656         }
 657
 658         // Check for hashtags in the body and repair or add hashtag links
 659         if ($preview || $orig_post) {
 660                 Item::setHashtags($datarray);
 661         }
 662
 663         // preview mode - prepare the body for display and send it via json
 664         if ($preview) {
 665                 // We set the datarray ID to -1 because in preview mode the dataray
 666                 // doesn't have an ID.
 667                 $datarray["id"] = -1;
 668                 $datarray["item_id"] = -1;
 669                 $datarray["author-network"] = Protocol::DFRN;
 670
 671                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager($a->query_string), 'search', false, true);
 672                 Logger::log('preview: ' . $o);
 673                 echo json_encode(['preview' => $o]);
 674                 exit();
 675         }
 676
 677         Hook::callAll('post_local',$datarray);
 678
 679         if (!empty($datarray['cancel'])) {
 680                 Logger::log('mod_item: post cancelled by addon.');
 681                 if ($return_path) {
 682                         $a->internalRedirect($return_path);
 683                 }
 684
 685                 $json = ['cancel' => 1];
 686                 if (!empty($_REQUEST['jsreload'])) {
 687                         $json['reload'] = System::baseUrl() . '/' . $_REQUEST['jsreload'];
 688                 }
 689
 690                 echo json_encode($json);
 691                 exit();
 692         }
 693
 694         if ($orig_post) {
 695                 // Fill the cache field
 696                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 697                 Item::putInCache($datarray);
 698
 699                 $fields = [
 700                         'title' => $datarray['title'],
 701                         'body' => $datarray['body'],
 702                         'tag' => $datarray['tag'],
 703                         'attach' => $datarray['attach'],
 704                         'file' => $datarray['file'],
 705                         'rendered-html' => $datarray['rendered-html'],
 706                         'rendered-hash' => $datarray['rendered-hash'],
 707                         'edited' => DateTimeFormat::utcNow(),
 708                         'changed' => DateTimeFormat::utcNow()];
 709
 710                 Item::update($fields, ['id' => $post_id]);
 711
 712                 // update filetags in pconfig
 713                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 714
 715                 if (!empty($_REQUEST['return']) && strlen($return_path)) {
 716                         Logger::log('return: ' . $return_path);
 717                         $a->internalRedirect($return_path);
 718                 }
 719                 exit();
 720         }
 721
 722         unset($datarray['edit']);
 723         unset($datarray['self']);
 724         unset($datarray['api_source']);
 725
 726         if ($origin) {
 727                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 728                 if (!empty($signed)) {
 729                         $datarray['diaspora_signed_text'] = json_encode($signed);
 730                 }
 731         }
 732
 733         $post_id = Item::insert($datarray);
 734
 735         if (!$post_id) {
 736                 Logger::log("Item wasn't stored.");
 737                 $a->internalRedirect($return_path);
 738         }
 739
 740         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 741
 742         if (!DBA::isResult($datarray)) {
 743                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 744                 $a->internalRedirect($return_path);
 745         }
 746
 747         // update filetags in pconfig
 748         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 749
 750         // These notifications are sent if someone else is commenting other your wall
 751         if ($toplevel_item_id) {
 752                 if ($contact_record != $author) {
 753                         notification([
 754                                 'type'         => NOTIFY_COMMENT,
 755                                 'notify_flags' => $user['notify-flags'],
 756                                 'language'     => $user['language'],
 757                                 'to_name'      => $user['username'],
 758                                 'to_email'     => $user['email'],
 759                                 'uid'          => $user['uid'],
 760                                 'item'         => $datarray,
 761                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 762                                 'source_name'  => $datarray['author-name'],
 763                                 'source_link'  => $datarray['author-link'],
 764                                 'source_photo' => $datarray['author-avatar'],
 765                                 'verb'         => Activity::POST,
 766                                 'otype'        => 'item',
 767                                 'parent'       => $toplevel_item_id,
 768                                 'parent_uri'   => $toplevel_item['uri']
 769                         ]);
 770                 }
 771         } else {
 772                 if (($contact_record != $author) && !count($forum_contact)) {
 773                         notification([
 774                                 'type'         => NOTIFY_WALL,
 775                                 'notify_flags' => $user['notify-flags'],
 776                                 'language'     => $user['language'],
 777                                 'to_name'      => $user['username'],
 778                                 'to_email'     => $user['email'],
 779                                 'uid'          => $user['uid'],
 780                                 'item'         => $datarray,
 781                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 782                                 'source_name'  => $datarray['author-name'],
 783                                 'source_link'  => $datarray['author-link'],
 784                                 'source_photo' => $datarray['author-avatar'],
 785                                 'verb'         => Activity::POST,
 786                                 'otype'        => 'item'
 787                         ]);
 788                 }
 789         }
 790
 791         Hook::callAll('post_local_end', $datarray);
 792
 793         if (strlen($emailcc) && $profile_uid == local_user()) {
 794                 $erecips = explode(',', $emailcc);
 795                 if (count($erecips)) {
 796                         foreach ($erecips as $recip) {
 797                                 $addr = trim($recip);
 798                                 if (!strlen($addr)) {
 799                                         continue;
 800                                 }
 801                                 $disclaimer = '<hr />' . L10n::t('This message was sent to you by %s, a member of the Friendica social network.', $a->user['username'])
 802                                         . '<br />';
 803                                 $disclaimer .= L10n::t('You may visit them online at %s', System::baseUrl() . '/profile/' . $a->user['nickname']) . EOL;
 804                                 $disclaimer .= L10n::t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 805                                 if (!$datarray['title']=='') {
 806                                         $subject = Email::encodeHeader($datarray['title'], 'UTF-8');
 807                                 } else {
 808                                         $subject = Email::encodeHeader('[Friendica]' . ' ' . L10n::t('%s posted an update.', $a->user['username']), 'UTF-8');
 809                                 }
 810                                 $link = '<a href="' . System::baseUrl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 811                                 $html    = Item::prepareBody($datarray);
 812                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 813                                 $params =  [
 814                                         'fromName' => $a->user['username'],
 815                                         'fromEmail' => $a->user['email'],
 816                                         'toEmail' => $addr,
 817                                         'replyTo' => $a->user['email'],
 818                                         'messageSubject' => $subject,
 819                                         'htmlVersion' => $message,
 820                                         'textVersion' => HTML::toPlaintext($html.$disclaimer)
 821                                 ];
 822                                 Emailer::send($params);
 823                         }
 824                 }
 825         }
 826
 827         // Insert an item entry for UID=0 for global entries.
 828         // We now do it in the background to save some time.
 829         // This is important in interactive environments like the frontend or the API.
 830         // We don't fork a new process since this is done anyway with the following command
 831         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 832
 833         // When we are doing some forum posting via ! we have to start the notifier manually.
 834         // These kind of posts don't initiate the notifier call in the item class.
 835         if ($only_to_forum) {
 836                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 837         }
 838
 839         Logger::log('post_complete');
 840
 841         if ($api_source) {
 842                 return $post_id;
 843         }
 844
 845         item_post_return(System::baseUrl(), $api_source, $return_path);
 846         // NOTREACHED
 847 }
 848
 849 function item_post_return($baseurl, $api_source, $return_path)
 850 {
 851         // figure out how to return, depending on from whence we came
 852     $a = \get_app();
 853
 854         if ($api_source) {
 855                 return;
 856         }
 857
 858         if ($return_path) {
 859                 $a->internalRedirect($return_path);
 860         }
 861
 862         $json = ['success' => 1];
 863         if (!empty($_REQUEST['jsreload'])) {
 864                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 865         }
 866
 867         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 868
 869         echo json_encode($json);
 870         exit();
 871 }
 872
 873 function item_content(App $a)
 874 {
 875         if (!Session::isAuthenticated()) {
 876                 return;
 877         }
 878
 879         $o = '';
 880
 881         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 882                 if ($a->isAjax()) {
 883                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 884                 } else {
 885                         if (!empty($a->argv[3])) {
 886                                 $o = drop_item($a->argv[2], $a->argv[3]);
 887                         }
 888                         else {
 889                                 $o = drop_item($a->argv[2]);
 890                         }
 891                 }
 892
 893                 if ($a->isAjax()) {
 894                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 895                         echo json_encode([intval($a->argv[2]), intval($o)]);
 896                         exit();
 897                 }
 898         }
 899
 900         return $o;
 901 }
 902
 903 /**
 904  * This function removes the tag $tag from the text $body and replaces it with
 905  * the appropriate link.
 906  *
 907  * @param App     $a
 908  * @param string  $body     the text to replace the tag in
 909  * @param string  $inform   a comma-seperated string containing everybody to inform
 910  * @param string  $str_tags string to add the tag to
 911  * @param integer $profile_uid
 912  * @param string  $tag      the tag to replace
 913  * @param string  $network  The network of the post
 914  *
 915  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 916  * @throws ImagickException
 917  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 918  */
 919 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 920 {
 921         $replaced = false;
 922         $r = null;
 923
 924         //is it a person tag?
 925         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 926                 $tag_type = substr($tag, 0, 1);
 927                 //is it already replaced?
 928                 if (strpos($tag, '[url=')) {
 929                         //append tag to str_tags
 930                         if (!stristr($str_tags, $tag)) {
 931                                 if (strlen($str_tags)) {
 932                                         $str_tags .= ',';
 933                                 }
 934                                 $str_tags .= $tag;
 935                         }
 936
 937                         // Checking for the alias that is used for OStatus
 938                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 939                         if (preg_match($pattern, $tag, $matches)) {
 940                                 $data = Contact::getDetailsByURL($matches[1]);
 941
 942                                 if ($data["alias"] != "") {
 943                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 944
 945                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 946                                                 if (strlen($str_tags)) {
 947                                                         $str_tags .= ',';
 948                                                 }
 949
 950                                                 $str_tags .= $newtag;
 951                                         }
 952                                 }
 953                         }
 954
 955                         return $replaced;
 956                 }
 957
 958                 //get the person's name
 959                 $name = substr($tag, 1);
 960
 961                 // Sometimes the tag detection doesn't seem to work right
 962                 // This is some workaround
 963                 $nameparts = explode(" ", $name);
 964                 $name = $nameparts[0];
 965
 966                 // Try to detect the contact in various ways
 967                 if (strpos($name, 'http://')) {
 968                         // At first we have to ensure that the contact exists
 969                         Contact::getIdForURL($name);
 970
 971                         // Now we should have something
 972                         $contact = Contact::getDetailsByURL($name);
 973                 } elseif (strpos($name, '@')) {
 974                         // This function automatically probes when no entry was found
 975                         $contact = Contact::getDetailsByAddr($name);
 976                 } else {
 977                         $contact = false;
 978                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 979
 980                         if (strrpos($name, '+')) {
 981                                 // Is it in format @nick+number?
 982                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 983                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 984                         }
 985
 986                         // select someone by nick or attag in the current network
 987                         if (!DBA::isResult($contact) && ($network != "")) {
 988                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 989                                                 $name, $name, $network, $profile_uid];
 990                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 991                         }
 992
 993                         //select someone by name in the current network
 994                         if (!DBA::isResult($contact) && ($network != "")) {
 995                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 996                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 997                         }
 998
 999                         // select someone by nick or attag in any network
1000                         if (!DBA::isResult($contact)) {
1001                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
1002                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1003                         }
1004
1005                         // select someone by name in any network
1006                         if (!DBA::isResult($contact)) {
1007                                 $condition = ['name' => $name, 'uid' => $profile_uid];
1008                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1009                         }
1010                 }
1011
1012                 // Check if $contact has been successfully loaded
1013                 if (DBA::isResult($contact)) {
1014                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
1015                                 $inform .= ',';
1016                         }
1017
1018                         if (isset($contact["id"])) {
1019                                 $inform .= 'cid:' . $contact["id"];
1020                         } elseif (isset($contact["notify"])) {
1021                                 $inform  .= $contact["notify"];
1022                         }
1023
1024                         $profile = $contact["url"];
1025                         $alias   = $contact["alias"];
1026                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1027                 }
1028
1029                 //if there is an url for this persons profile
1030                 if (isset($profile) && ($newname != "")) {
1031                         $replaced = true;
1032                         // create profile link
1033                         $profile = str_replace(',', '%2c', $profile);
1034                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1035                         $body = str_replace($tag_type . $name, $newtag, $body);
1036                         // append tag to str_tags
1037                         if (!stristr($str_tags, $newtag)) {
1038                                 if (strlen($str_tags)) {
1039                                         $str_tags .= ',';
1040                                 }
1041                                 $str_tags .= $newtag;
1042                         }
1043
1044                         /*
1045                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1046                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1047                          */
1048                         if (!empty($alias)) {
1049                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1050                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1051                                         if (strlen($str_tags)) {
1052                                                 $str_tags .= ',';
1053                                         }
1054                                         $str_tags .= $newtag;
1055                                 }
1056                         }
1057                 }
1058         }
1059
1060         return ['replaced' => $replaced, 'contact' => $contact];
1061 }
1062
1063 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1064 {
1065         if (Config::get('system', 'disable_implicit_mentions')) {
1066                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1067                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1068                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1069                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1070                                 $tags[] = $contact;
1071                         }
1072                 }
1073         } else {
1074                 $implicit_mentions = [
1075                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1076                 ];
1077
1078                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1079
1080                 foreach ($parent_terms as $parent_term) {
1081                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1082                 }
1083
1084                 foreach ($implicit_mentions as $url => $label) {
1085                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1086                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1087                         }
1088                 }
1089         }
1090
1091         return $tags;
1092 }