mod/item.php

   1 <?php
   2 /**
   3  * @file mod/item.php
   4  */
   5
   6 /*
   7  * This is the POST destination for most all locally posted
   8  * text stuff. This function handles status, wall-to-wall status,
   9  * local comments, and remote coments that are posted on this site
  10  * (as opposed to being delivered in a feed).
  11  * Also processed here are posts and comments coming through the
  12  * statusnet/twitter API.
  13  *
  14  * All of these become an "item" which is our basic unit of
  15  * information.
  16  */
  17
  18 use Friendica\App;
  19 use Friendica\Content\Pager;
  20 use Friendica\Content\Text\BBCode;
  21 use Friendica\Content\Text\HTML;
  22 use Friendica\Core\Config;
  23 use Friendica\Core\Hook;
  24 use Friendica\Core\L10n;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\Protocol;
  27 use Friendica\Core\System;
  28 use Friendica\Core\Session;
  29 use Friendica\Core\Worker;
  30 use Friendica\Database\DBA;
  31 use Friendica\Model\Attach;
  32 use Friendica\Model\Contact;
  33 use Friendica\Model\Conversation;
  34 use Friendica\Model\FileTag;
  35 use Friendica\Model\Item;
  36 use Friendica\Model\Photo;
  37 use Friendica\Model\Term;
  38 use Friendica\Protocol\Diaspora;
  39 use Friendica\Protocol\Email;
  40 use Friendica\Util\DateTimeFormat;
  41 use Friendica\Util\Emailer;
  42 use Friendica\Util\Security;
  43 use Friendica\Util\Strings;
  44 use Friendica\Worker\Delivery;
  45
  46 require_once __DIR__ . '/../include/items.php';
  47
  48 function item_post(App $a) {
  49         if (!Session::isAuthenticated()) {
  50                 return 0;
  51         }
  52
  53         $uid = local_user();
  54
  55         if (!empty($_REQUEST['dropitems'])) {
  56                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  57                 drop_items($arr_drop);
  58                 $json = ['success' => 1];
  59                 echo json_encode($json);
  60                 exit();
  61         }
  62
  63         Hook::callAll('post_local_start', $_REQUEST);
  64
  65         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  66
  67         $api_source = $_REQUEST['api_source'] ?? false;
  68
  69         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  70
  71         $return_path = $_REQUEST['return'] ?? '';
  72         $preview = intval($_REQUEST['preview'] ?? 0);
  73
  74         /*
  75          * Check for doubly-submitted posts, and reject duplicates
  76          * Note that we have to ignore previews, otherwise nothing will post
  77          * after it's been previewed
  78          */
  79         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  80                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  81                         Logger::log("item post: duplicate post", Logger::DEBUG);
  82                         item_post_return(System::baseUrl(), $api_source, $return_path);
  83                 } else {
  84                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  85                 }
  86         }
  87
  88         // Is this a reply to something?
  89         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
  90         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
  91
  92         $thread_parent_id = 0;
  93         $thread_parent_contact = null;
  94
  95         $toplevel_item = null;
  96         $parent_user = null;
  97
  98         $parent_contact = null;
  99
 100         $objecttype = null;
 101         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 102         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 103
 104         if ($toplevel_item_id || $thr_parent_uri) {
 105                 if ($toplevel_item_id) {
 106                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 107                 } elseif ($thr_parent_uri) {
 108                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 109                 }
 110
 111                 // if this isn't the top-level parent of the conversation, find it
 112                 if (DBA::isResult($toplevel_item)) {
 113                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 114                         $thread_parent_id = $toplevel_item['id'];
 115                         $thr_parent_uri = $toplevel_item['uri'];
 116                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 117
 118                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 119                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 120                         }
 121                 }
 122
 123                 if (!DBA::isResult($toplevel_item)) {
 124                         notice(L10n::t('Unable to locate original post.') . EOL);
 125                         if (!empty($_REQUEST['return'])) {
 126                                 $a->internalRedirect($return_path);
 127                         }
 128                         exit();
 129                 }
 130
 131                 $toplevel_item_id = $toplevel_item['id'];
 132                 $parent_user = $toplevel_item['uid'];
 133
 134                 $objecttype = ACTIVITY_OBJ_COMMENT;
 135         }
 136
 137         if ($toplevel_item_id) {
 138                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 139         }
 140
 141         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 142         $app         = strip_tags($_REQUEST['source'] ?? '');
 143         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 144         $object      = $_REQUEST['object'] ?? '';
 145
 146         // Don't use "defaults" here. It would turn 0 to 1
 147         if (!isset($_REQUEST['wall'])) {
 148                 $wall = 1;
 149         } else {
 150                 $wall = $_REQUEST['wall'];
 151         }
 152
 153         // Ensure that the user id in a thread always stay the same
 154         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 155                 $profile_uid = $parent_user;
 156         }
 157
 158         // Check for multiple posts with the same message id (when the post was created via API)
 159         if (($message_id != '') && ($profile_uid != 0)) {
 160                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 161                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 162                         return 0;
 163                 }
 164         }
 165
 166         // Allow commenting if it is an answer to a public post
 167         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 168
 169         // Now check that valid personal details have been provided
 170         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 171                 notice(L10n::t('Permission denied.') . EOL);
 172
 173                 if (!empty($_REQUEST['return'])) {
 174                         $a->internalRedirect($return_path);
 175                 }
 176
 177                 exit();
 178         }
 179
 180         // Init post instance
 181         $orig_post = null;
 182
 183         // is this an edited post?
 184         if ($post_id > 0) {
 185                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 186         }
 187
 188         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 189
 190         if (!DBA::isResult($user) && !$toplevel_item_id) {
 191                 return 0;
 192         }
 193
 194         $categories = '';
 195         $postopts = '';
 196         $emailcc = '';
 197         $body = $_REQUEST['body'] ?? '';
 198         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 199
 200         // If we have a speparate attachment, we need to add it to the body.
 201         if (!empty($has_attachment)) {
 202                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 203                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 204                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 205
 206                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 207                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 208
 209                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 210                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 211                 $attachment = [
 212                         'type'   => $attachment_type,
 213                         'title'  => $attachment_title,
 214                         'text'   => $attachment_text,
 215                         'url'    => $attachment_url,
 216                 ];
 217
 218                 if (!empty($attachment_img_src)) {
 219                         $attachment['images'] = [
 220                                 0 => [
 221                                         'src'    => $attachment_img_src,
 222                                         'width'  => $attachment_img_width,
 223                                         'height' => $attachment_img_height
 224                                 ]
 225                         ];
 226                 }
 227
 228                 $att_bbcode = add_page_info_data($attachment);
 229                 $body .= $att_bbcode;
 230         }
 231
 232         // Convert links with empty descriptions to links without an explicit description
 233         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 234
 235         if (!empty($orig_post)) {
 236                 $str_group_allow   = $orig_post['allow_gid'];
 237                 $str_contact_allow = $orig_post['allow_cid'];
 238                 $str_group_deny    = $orig_post['deny_gid'];
 239                 $str_contact_deny  = $orig_post['deny_cid'];
 240                 $location          = $orig_post['location'];
 241                 $coord             = $orig_post['coord'];
 242                 $verb              = $orig_post['verb'];
 243                 $objecttype        = $orig_post['object-type'];
 244                 $app               = $orig_post['app'];
 245                 $categories        = $orig_post['file'];
 246                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 247                 $body              = Strings::escapeHtml(trim($body));
 248                 $private           = $orig_post['private'];
 249                 $pubmail_enabled   = $orig_post['pubmail'];
 250                 $network           = $orig_post['network'];
 251                 $guid              = $orig_post['guid'];
 252                 $extid             = $orig_post['extid'];
 253
 254         } else {
 255
 256                 /*
 257                  * if coming from the API and no privacy settings are set,
 258                  * use the user default permissions - as they won't have
 259                  * been supplied via a form.
 260                  */
 261                 if ($api_source
 262                         && !array_key_exists('contact_allow', $_REQUEST)
 263                         && !array_key_exists('group_allow', $_REQUEST)
 264                         && !array_key_exists('contact_deny', $_REQUEST)
 265                         && !array_key_exists('group_deny', $_REQUEST)) {
 266                         $str_group_allow   = $user['allow_gid'];
 267                         $str_contact_allow = $user['allow_cid'];
 268                         $str_group_deny    = $user['deny_gid'];
 269                         $str_contact_deny  = $user['deny_cid'];
 270                 } else {
 271                         // use the posted permissions
 272                         $str_group_allow   = perms2str($_REQUEST['group_allow'] ?? '');
 273                         $str_contact_allow = perms2str($_REQUEST['contact_allow'] ?? '');
 274                         $str_group_deny    = perms2str($_REQUEST['group_deny'] ?? '');
 275                         $str_contact_deny  = perms2str($_REQUEST['contact_deny'] ?? '');
 276                 }
 277
 278                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 279                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 280                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 281                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 282                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 283                 $body              = Strings::escapeHtml(trim($body));
 284                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 285                 $guid              = System::createUUID();
 286
 287                 $postopts = $_REQUEST['postopts'] ?? '';
 288
 289                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 290
 291                 // If this is a comment, set the permissions from the parent.
 292
 293                 if ($toplevel_item) {
 294                         // for non native networks use the network of the original post as network of the item
 295                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 296                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 297                                 && ($network == "")) {
 298                                 $network = $toplevel_item['network'];
 299                         }
 300
 301                         $str_contact_allow = $toplevel_item['allow_cid'];
 302                         $str_group_allow   = $toplevel_item['allow_gid'];
 303                         $str_contact_deny  = $toplevel_item['deny_cid'];
 304                         $str_group_deny    = $toplevel_item['deny_gid'];
 305                         $private           = $toplevel_item['private'];
 306
 307                         $wall              = $toplevel_item['wall'];
 308                 }
 309
 310                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 311
 312                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 313                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 314                         if (function_exists('imap_open') && !Config::get('system', 'imap_disabled')) {
 315                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 316                         }
 317                 }
 318
 319                 if (!strlen($body)) {
 320                         if ($preview) {
 321                                 exit();
 322                         }
 323                         info(L10n::t('Empty post discarded.') . EOL);
 324                         if (!empty($_REQUEST['return'])) {
 325                                 $a->internalRedirect($return_path);
 326                         }
 327                         exit();
 328                 }
 329         }
 330
 331         if (!empty($categories)) {
 332                 // get the "fileas" tags for this post
 333                 $filedas = FileTag::fileToArray($categories);
 334         }
 335
 336         // save old and new categories, so we can determine what needs to be deleted from pconfig
 337         $categories_old = $categories;
 338         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 339         $categories_new = $categories;
 340
 341         if (!empty($filedas) && is_array($filedas)) {
 342                 // append the fileas stuff to the new categories list
 343                 $categories .= FileTag::arrayToFile($filedas);
 344         }
 345
 346         // get contact info for poster
 347
 348         $author = null;
 349         $self   = false;
 350         $contact_id = 0;
 351
 352         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 353                 $self = true;
 354                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 355         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 356                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 357         }
 358
 359         if (DBA::isResult($author)) {
 360                 $contact_id = $author['id'];
 361         }
 362
 363         // get contact info for owner
 364         if ($profile_uid == local_user() || $allow_comment) {
 365                 $contact_record = $author;
 366         } else {
 367                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 368         }
 369
 370         // Look for any tags and linkify them
 371         $str_tags = '';
 372         $inform   = '';
 373
 374         $tags = BBCode::getTags($body);
 375
 376         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 377                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 378         }
 379
 380         $tagged = [];
 381
 382         $private_forum = false;
 383         $only_to_forum = false;
 384         $forum_contact = [];
 385
 386         if (count($tags)) {
 387                 foreach ($tags as $tag) {
 388                         $tag_type = substr($tag, 0, 1);
 389
 390                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 391                                 continue;
 392                         }
 393
 394                         /*
 395                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 396                          * Robert Johnson should be first in the $tags array
 397                          */
 398                         $fullnametagged = false;
 399                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 400                         foreach ($tagged as $nextTag) {
 401                                 if (stristr($nextTag, $tag . ' ')) {
 402                                         $fullnametagged = true;
 403                                         break;
 404                                 }
 405                         }
 406                         if ($fullnametagged) {
 407                                 continue;
 408                         }
 409
 410                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 411                         if ($success['replaced']) {
 412                                 $tagged[] = $tag;
 413                         }
 414                         // When the forum is private or the forum is addressed with a "!" make the post private
 415                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 416                                 $private_forum = $success['contact']['prv'];
 417                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 418                                 $private_id = $success['contact']['id'];
 419                                 $forum_contact = $success['contact'];
 420                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 421                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 422                                 $private_forum = false;
 423                                 $only_to_forum = true;
 424                                 $private_id = $success['contact']['id'];
 425                                 $forum_contact = $success['contact'];
 426                         }
 427                 }
 428         }
 429
 430         $original_contact_id = $contact_id;
 431
 432         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 433                 // we tagged a forum in a top level post. Now we change the post
 434                 $private = $private_forum;
 435
 436                 $str_group_allow = '';
 437                 $str_contact_deny = '';
 438                 $str_group_deny = '';
 439                 if ($private_forum) {
 440                         $str_contact_allow = '<' . $private_id . '>';
 441                 } else {
 442                         $str_contact_allow = '';
 443                 }
 444                 $contact_id = $private_id;
 445                 $contact_record = $forum_contact;
 446                 $_REQUEST['origin'] = false;
 447                 $wall = 0;
 448         }
 449
 450         /*
 451          * When a photo was uploaded into the message using the (profile wall) ajax
 452          * uploader, The permissions are initially set to disallow anybody but the
 453          * owner from seeing it. This is because the permissions may not yet have been
 454          * set for the post. If it's private, the photo permissions should be set
 455          * appropriately. But we didn't know the final permissions on the post until
 456          * now. So now we'll look for links of uploaded messages that are in the
 457          * post and set them to the same permissions as the post itself.
 458          */
 459
 460         $match = null;
 461
 462         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 463                 $objecttype = ACTIVITY_OBJ_IMAGE;
 464         }
 465
 466         /*
 467          * Next link in any attachment references we find in the post.
 468          */
 469         $match = false;
 470
 471         /// @todo these lines should be moved to Model/Attach (Once it exists)
 472         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 473                 $attaches = $match[1];
 474                 if (count($attaches)) {
 475                         foreach ($attaches as $attach) {
 476                                 // Ensure to only modify attachments that you own
 477                                 $srch = '<' . intval($original_contact_id) . '>';
 478
 479                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 480                                                 'id' => $attach];
 481                                 if (!Attach::exists($condition)) {
 482                                         continue;
 483                                 }
 484
 485                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 486                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 487                                 $condition = ['id' => $attach];
 488                                 Attach::update($fields, $condition);
 489                         }
 490                 }
 491         }
 492
 493         // embedded bookmark or attachment in post? set bookmark flag
 494
 495         $data = BBCode::getAttachmentData($body);
 496         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 497                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 498                 $posttype = Item::PT_PAGE;
 499                 $objecttype = ACTIVITY_OBJ_BOOKMARK;
 500         }
 501
 502         $body = bb_translate_video($body);
 503
 504
 505         // Fold multi-line [code] sequences
 506         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 507
 508         $body = BBCode::scaleExternalImages($body, false);
 509
 510         // Setting the object type if not defined before
 511         if (!$objecttype) {
 512                 $objecttype = ACTIVITY_OBJ_NOTE; // Default value
 513                 $objectdata = BBCode::getAttachedData($body);
 514
 515                 if ($objectdata["type"] == "link") {
 516                         $objecttype = ACTIVITY_OBJ_BOOKMARK;
 517                 } elseif ($objectdata["type"] == "video") {
 518                         $objecttype = ACTIVITY_OBJ_VIDEO;
 519                 } elseif ($objectdata["type"] == "photo") {
 520                         $objecttype = ACTIVITY_OBJ_IMAGE;
 521                 }
 522
 523         }
 524
 525         $attachments = '';
 526         $match = false;
 527
 528         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 529                 foreach ($match[2] as $mtch) {
 530                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 531                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 532                         if ($attachment !== false) {
 533                                 if (strlen($attachments)) {
 534                                         $attachments .= ',';
 535                                 }
 536                                 $attachments .= '[attach]href="' . System::baseUrl() . '/attach/' . $attachment['id'] .
 537                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 538                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 539                         }
 540                         $body = str_replace($match[1],'',$body);
 541                 }
 542         }
 543
 544         if (!strlen($verb)) {
 545                 $verb = ACTIVITY_POST;
 546         }
 547
 548         if ($network == "") {
 549                 $network = Protocol::DFRN;
 550         }
 551
 552         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 553
 554         // even if the post arrived via API we are considering that it
 555         // originated on this site by default for determining relayability.
 556
 557         // Don't use "defaults" here. It would turn 0 to 1
 558         if (!isset($_REQUEST['origin'])) {
 559                 $origin = 1;
 560         } else {
 561                 $origin = $_REQUEST['origin'];
 562         }
 563
 564         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 565
 566         // Fallback so that we alway have a parent uri
 567         if (!$thr_parent_uri || !$toplevel_item_id) {
 568                 $thr_parent_uri = $uri;
 569         }
 570
 571         $datarray = [];
 572         $datarray['uid']           = $profile_uid;
 573         $datarray['wall']          = $wall;
 574         $datarray['gravity']       = $gravity;
 575         $datarray['network']       = $network;
 576         $datarray['contact-id']    = $contact_id;
 577         $datarray['owner-name']    = $contact_record['name'];
 578         $datarray['owner-link']    = $contact_record['url'];
 579         $datarray['owner-avatar']  = $contact_record['thumb'];
 580         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 581         $datarray['author-name']   = $author['name'];
 582         $datarray['author-link']   = $author['url'];
 583         $datarray['author-avatar'] = $author['thumb'];
 584         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 585         $datarray['created']       = DateTimeFormat::utcNow();
 586         $datarray['edited']        = DateTimeFormat::utcNow();
 587         $datarray['commented']     = DateTimeFormat::utcNow();
 588         $datarray['received']      = DateTimeFormat::utcNow();
 589         $datarray['changed']       = DateTimeFormat::utcNow();
 590         $datarray['extid']         = $extid;
 591         $datarray['guid']          = $guid;
 592         $datarray['uri']           = $uri;
 593         $datarray['title']         = $title;
 594         $datarray['body']          = $body;
 595         $datarray['app']           = $app;
 596         $datarray['location']      = $location;
 597         $datarray['coord']         = $coord;
 598         $datarray['tag']           = $str_tags;
 599         $datarray['file']          = $categories;
 600         $datarray['inform']        = $inform;
 601         $datarray['verb']          = $verb;
 602         $datarray['post-type']     = $posttype;
 603         $datarray['object-type']   = $objecttype;
 604         $datarray['allow_cid']     = $str_contact_allow;
 605         $datarray['allow_gid']     = $str_group_allow;
 606         $datarray['deny_cid']      = $str_contact_deny;
 607         $datarray['deny_gid']      = $str_group_deny;
 608         $datarray['private']       = $private;
 609         $datarray['pubmail']       = $pubmail_enabled;
 610         $datarray['attach']        = $attachments;
 611
 612         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 613         $datarray['parent-uri']    = $thr_parent_uri;
 614
 615         $datarray['postopts']      = $postopts;
 616         $datarray['origin']        = $origin;
 617         $datarray['moderated']     = false;
 618         $datarray['object']        = $object;
 619
 620         /*
 621          * These fields are for the convenience of addons...
 622          * 'self' if true indicates the owner is posting on their own wall
 623          * If parent is 0 it is a top-level post.
 624          */
 625         $datarray['parent']        = $toplevel_item_id;
 626         $datarray['self']          = $self;
 627
 628         // This triggers posts via API and the mirror functions
 629         $datarray['api_source'] = $api_source;
 630
 631         // This field is for storing the raw conversation data
 632         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 633
 634         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 635         if (DBA::isResult($conversation)) {
 636                 if ($conversation['conversation-uri'] != '') {
 637                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 638                 }
 639                 if ($conversation['conversation-href'] != '') {
 640                         $datarray['conversation-href'] = $conversation['conversation-href'];
 641                 }
 642         }
 643
 644         if ($orig_post) {
 645                 $datarray['edit'] = true;
 646         } else {
 647                 $datarray['edit'] = false;
 648         }
 649
 650         // Check for hashtags in the body and repair or add hashtag links
 651         if ($preview || $orig_post) {
 652                 Item::setHashtags($datarray);
 653         }
 654
 655         // preview mode - prepare the body for display and send it via json
 656         if ($preview) {
 657                 // We set the datarray ID to -1 because in preview mode the dataray
 658                 // doesn't have an ID.
 659                 $datarray["id"] = -1;
 660                 $datarray["item_id"] = -1;
 661                 $datarray["author-network"] = Protocol::DFRN;
 662
 663                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager($a->query_string), 'search', false, true);
 664                 Logger::log('preview: ' . $o);
 665                 echo json_encode(['preview' => $o]);
 666                 exit();
 667         }
 668
 669         Hook::callAll('post_local',$datarray);
 670
 671         if (!empty($datarray['cancel'])) {
 672                 Logger::log('mod_item: post cancelled by addon.');
 673                 if ($return_path) {
 674                         $a->internalRedirect($return_path);
 675                 }
 676
 677                 $json = ['cancel' => 1];
 678                 if (!empty($_REQUEST['jsreload'])) {
 679                         $json['reload'] = System::baseUrl() . '/' . $_REQUEST['jsreload'];
 680                 }
 681
 682                 echo json_encode($json);
 683                 exit();
 684         }
 685
 686         if ($orig_post) {
 687                 // Fill the cache field
 688                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 689                 Item::putInCache($datarray);
 690
 691                 $fields = [
 692                         'title' => $datarray['title'],
 693                         'body' => $datarray['body'],
 694                         'tag' => $datarray['tag'],
 695                         'attach' => $datarray['attach'],
 696                         'file' => $datarray['file'],
 697                         'rendered-html' => $datarray['rendered-html'],
 698                         'rendered-hash' => $datarray['rendered-hash'],
 699                         'edited' => DateTimeFormat::utcNow(),
 700                         'changed' => DateTimeFormat::utcNow()];
 701
 702                 Item::update($fields, ['id' => $post_id]);
 703
 704                 // update filetags in pconfig
 705                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 706
 707                 if (!empty($_REQUEST['return']) && strlen($return_path)) {
 708                         Logger::log('return: ' . $return_path);
 709                         $a->internalRedirect($return_path);
 710                 }
 711                 exit();
 712         }
 713
 714         unset($datarray['edit']);
 715         unset($datarray['self']);
 716         unset($datarray['api_source']);
 717
 718         if ($origin) {
 719                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 720                 if (!empty($signed)) {
 721                         $datarray['diaspora_signed_text'] = json_encode($signed);
 722                 }
 723         }
 724
 725         $post_id = Item::insert($datarray);
 726
 727         if (!$post_id) {
 728                 Logger::log("Item wasn't stored.");
 729                 $a->internalRedirect($return_path);
 730         }
 731
 732         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 733
 734         if (!DBA::isResult($datarray)) {
 735                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 736                 $a->internalRedirect($return_path);
 737         }
 738
 739         // update filetags in pconfig
 740         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 741
 742         // These notifications are sent if someone else is commenting other your wall
 743         if ($toplevel_item_id) {
 744                 if ($contact_record != $author) {
 745                         notification([
 746                                 'type'         => NOTIFY_COMMENT,
 747                                 'notify_flags' => $user['notify-flags'],
 748                                 'language'     => $user['language'],
 749                                 'to_name'      => $user['username'],
 750                                 'to_email'     => $user['email'],
 751                                 'uid'          => $user['uid'],
 752                                 'item'         => $datarray,
 753                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 754                                 'source_name'  => $datarray['author-name'],
 755                                 'source_link'  => $datarray['author-link'],
 756                                 'source_photo' => $datarray['author-avatar'],
 757                                 'verb'         => ACTIVITY_POST,
 758                                 'otype'        => 'item',
 759                                 'parent'       => $toplevel_item_id,
 760                                 'parent_uri'   => $toplevel_item['uri']
 761                         ]);
 762                 }
 763         } else {
 764                 if (($contact_record != $author) && !count($forum_contact)) {
 765                         notification([
 766                                 'type'         => NOTIFY_WALL,
 767                                 'notify_flags' => $user['notify-flags'],
 768                                 'language'     => $user['language'],
 769                                 'to_name'      => $user['username'],
 770                                 'to_email'     => $user['email'],
 771                                 'uid'          => $user['uid'],
 772                                 'item'         => $datarray,
 773                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 774                                 'source_name'  => $datarray['author-name'],
 775                                 'source_link'  => $datarray['author-link'],
 776                                 'source_photo' => $datarray['author-avatar'],
 777                                 'verb'         => ACTIVITY_POST,
 778                                 'otype'        => 'item'
 779                         ]);
 780                 }
 781         }
 782
 783         Hook::callAll('post_local_end', $datarray);
 784
 785         if (strlen($emailcc) && $profile_uid == local_user()) {
 786                 $erecips = explode(',', $emailcc);
 787                 if (count($erecips)) {
 788                         foreach ($erecips as $recip) {
 789                                 $addr = trim($recip);
 790                                 if (!strlen($addr)) {
 791                                         continue;
 792                                 }
 793                                 $disclaimer = '<hr />' . L10n::t('This message was sent to you by %s, a member of the Friendica social network.', $a->user['username'])
 794                                         . '<br />';
 795                                 $disclaimer .= L10n::t('You may visit them online at %s', System::baseUrl() . '/profile/' . $a->user['nickname']) . EOL;
 796                                 $disclaimer .= L10n::t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 797                                 if (!$datarray['title']=='') {
 798                                         $subject = Email::encodeHeader($datarray['title'], 'UTF-8');
 799                                 } else {
 800                                         $subject = Email::encodeHeader('[Friendica]' . ' ' . L10n::t('%s posted an update.', $a->user['username']), 'UTF-8');
 801                                 }
 802                                 $link = '<a href="' . System::baseUrl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 803                                 $html    = Item::prepareBody($datarray);
 804                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 805                                 $params =  [
 806                                         'fromName' => $a->user['username'],
 807                                         'fromEmail' => $a->user['email'],
 808                                         'toEmail' => $addr,
 809                                         'replyTo' => $a->user['email'],
 810                                         'messageSubject' => $subject,
 811                                         'htmlVersion' => $message,
 812                                         'textVersion' => HTML::toPlaintext($html.$disclaimer)
 813                                 ];
 814                                 Emailer::send($params);
 815                         }
 816                 }
 817         }
 818
 819         // Insert an item entry for UID=0 for global entries.
 820         // We now do it in the background to save some time.
 821         // This is important in interactive environments like the frontend or the API.
 822         // We don't fork a new process since this is done anyway with the following command
 823         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 824
 825         // When we are doing some forum posting via ! we have to start the notifier manually.
 826         // These kind of posts don't initiate the notifier call in the item class.
 827         if ($only_to_forum) {
 828                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 829         }
 830
 831         Logger::log('post_complete');
 832
 833         if ($api_source) {
 834                 return $post_id;
 835         }
 836
 837         item_post_return(System::baseUrl(), $api_source, $return_path);
 838         // NOTREACHED
 839 }
 840
 841 function item_post_return($baseurl, $api_source, $return_path)
 842 {
 843         // figure out how to return, depending on from whence we came
 844     $a = \get_app();
 845
 846         if ($api_source) {
 847                 return;
 848         }
 849
 850         if ($return_path) {
 851                 $a->internalRedirect($return_path);
 852         }
 853
 854         $json = ['success' => 1];
 855         if (!empty($_REQUEST['jsreload'])) {
 856                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 857         }
 858
 859         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 860
 861         echo json_encode($json);
 862         exit();
 863 }
 864
 865 function item_content(App $a)
 866 {
 867         if (!Session::isAuthenticated()) {
 868                 return;
 869         }
 870
 871         $o = '';
 872
 873         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 874                 if ($a->isAjax()) {
 875                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 876                 } else {
 877                         if (!empty($a->argv[3])) {
 878                                 $o = drop_item($a->argv[2], $a->argv[3]);
 879                         }
 880                         else {
 881                                 $o = drop_item($a->argv[2]);
 882                         }
 883                 }
 884
 885                 if ($a->isAjax()) {
 886                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 887                         echo json_encode([intval($a->argv[2]), intval($o)]);
 888                         exit();
 889                 }
 890         }
 891
 892         return $o;
 893 }
 894
 895 /**
 896  * This function removes the tag $tag from the text $body and replaces it with
 897  * the appropriate link.
 898  *
 899  * @param App     $a
 900  * @param string  $body     the text to replace the tag in
 901  * @param string  $inform   a comma-seperated string containing everybody to inform
 902  * @param string  $str_tags string to add the tag to
 903  * @param integer $profile_uid
 904  * @param string  $tag      the tag to replace
 905  * @param string  $network  The network of the post
 906  *
 907  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 908  * @throws ImagickException
 909  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 910  */
 911 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 912 {
 913         $replaced = false;
 914         $r = null;
 915
 916         //is it a person tag?
 917         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 918                 $tag_type = substr($tag, 0, 1);
 919                 //is it already replaced?
 920                 if (strpos($tag, '[url=')) {
 921                         //append tag to str_tags
 922                         if (!stristr($str_tags, $tag)) {
 923                                 if (strlen($str_tags)) {
 924                                         $str_tags .= ',';
 925                                 }
 926                                 $str_tags .= $tag;
 927                         }
 928
 929                         // Checking for the alias that is used for OStatus
 930                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 931                         if (preg_match($pattern, $tag, $matches)) {
 932                                 $data = Contact::getDetailsByURL($matches[1]);
 933
 934                                 if ($data["alias"] != "") {
 935                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 936
 937                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 938                                                 if (strlen($str_tags)) {
 939                                                         $str_tags .= ',';
 940                                                 }
 941
 942                                                 $str_tags .= $newtag;
 943                                         }
 944                                 }
 945                         }
 946
 947                         return $replaced;
 948                 }
 949
 950                 //get the person's name
 951                 $name = substr($tag, 1);
 952
 953                 // Sometimes the tag detection doesn't seem to work right
 954                 // This is some workaround
 955                 $nameparts = explode(" ", $name);
 956                 $name = $nameparts[0];
 957
 958                 // Try to detect the contact in various ways
 959                 if (strpos($name, 'http://')) {
 960                         // At first we have to ensure that the contact exists
 961                         Contact::getIdForURL($name);
 962
 963                         // Now we should have something
 964                         $contact = Contact::getDetailsByURL($name);
 965                 } elseif (strpos($name, '@')) {
 966                         // This function automatically probes when no entry was found
 967                         $contact = Contact::getDetailsByAddr($name);
 968                 } else {
 969                         $contact = false;
 970                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 971
 972                         if (strrpos($name, '+')) {
 973                                 // Is it in format @nick+number?
 974                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 975                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 976                         }
 977
 978                         // select someone by nick or attag in the current network
 979                         if (!DBA::isResult($contact) && ($network != "")) {
 980                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 981                                                 $name, $name, $network, $profile_uid];
 982                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 983                         }
 984
 985                         //select someone by name in the current network
 986                         if (!DBA::isResult($contact) && ($network != "")) {
 987                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 988                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 989                         }
 990
 991                         // select someone by nick or attag in any network
 992                         if (!DBA::isResult($contact)) {
 993                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 994                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 995                         }
 996
 997                         // select someone by name in any network
 998                         if (!DBA::isResult($contact)) {
 999                                 $condition = ['name' => $name, 'uid' => $profile_uid];
1000                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1001                         }
1002                 }
1003
1004                 // Check if $contact has been successfully loaded
1005                 if (DBA::isResult($contact)) {
1006                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
1007                                 $inform .= ',';
1008                         }
1009
1010                         if (isset($contact["id"])) {
1011                                 $inform .= 'cid:' . $contact["id"];
1012                         } elseif (isset($contact["notify"])) {
1013                                 $inform  .= $contact["notify"];
1014                         }
1015
1016                         $profile = $contact["url"];
1017                         $alias   = $contact["alias"];
1018                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
1019                 }
1020
1021                 //if there is an url for this persons profile
1022                 if (isset($profile) && ($newname != "")) {
1023                         $replaced = true;
1024                         // create profile link
1025                         $profile = str_replace(',', '%2c', $profile);
1026                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1027                         $body = str_replace($tag_type . $name, $newtag, $body);
1028                         // append tag to str_tags
1029                         if (!stristr($str_tags, $newtag)) {
1030                                 if (strlen($str_tags)) {
1031                                         $str_tags .= ',';
1032                                 }
1033                                 $str_tags .= $newtag;
1034                         }
1035
1036                         /*
1037                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1038                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1039                          */
1040                         if (!empty($alias)) {
1041                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1042                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1043                                         if (strlen($str_tags)) {
1044                                                 $str_tags .= ',';
1045                                         }
1046                                         $str_tags .= $newtag;
1047                                 }
1048                         }
1049                 }
1050         }
1051
1052         return ['replaced' => $replaced, 'contact' => $contact];
1053 }
1054
1055 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1056 {
1057         if (Config::get('system', 'disable_implicit_mentions')) {
1058                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1059                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1060                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1061                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1062                                 $tags[] = $contact;
1063                         }
1064                 }
1065         } else {
1066                 $implicit_mentions = [
1067                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1068                 ];
1069
1070                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1071
1072                 foreach ($parent_terms as $parent_term) {
1073                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1074                 }
1075
1076                 foreach ($implicit_mentions as $url => $label) {
1077                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1078                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1079                         }
1080                 }
1081         }
1082
1083         return $tags;
1084 }