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\Worker;
  29 use Friendica\Database\DBA;
  30 use Friendica\Model\Attach;
  31 use Friendica\Model\Contact;
  32 use Friendica\Model\Conversation;
  33 use Friendica\Model\FileTag;
  34 use Friendica\Model\Item;
  35 use Friendica\Model\Photo;
  36 use Friendica\Model\Term;
  37 use Friendica\Protocol\Diaspora;
  38 use Friendica\Protocol\Email;
  39 use Friendica\Util\DateTimeFormat;
  40 use Friendica\Util\Emailer;
  41 use Friendica\Util\Security;
  42 use Friendica\Util\Strings;
  43 use Friendica\Worker\Delivery;
  44
  45 require_once 'include/items.php';
  46
  47 function item_post(App $a) {
  48         if (!local_user() && !remote_user()) {
  49                 return 0;
  50         }
  51
  52         $uid = local_user();
  53
  54         if (!empty($_REQUEST['dropitems'])) {
  55                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  56                 drop_items($arr_drop);
  57                 $json = ['success' => 1];
  58                 echo json_encode($json);
  59                 exit();
  60         }
  61
  62         Hook::callAll('post_local_start', $_REQUEST);
  63
  64         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  65
  66         $api_source = defaults($_REQUEST, 'api_source', false);
  67
  68         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  69
  70         $return_path = defaults($_REQUEST, 'return', '');
  71         $preview = intval(defaults($_REQUEST, 'preview', 0));
  72
  73         /*
  74          * Check for doubly-submitted posts, and reject duplicates
  75          * Note that we have to ignore previews, otherwise nothing will post
  76          * after it's been previewed
  77          */
  78         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  79                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  80                         Logger::log("item post: duplicate post", Logger::DEBUG);
  81                         item_post_return(System::baseUrl(), $api_source, $return_path);
  82                 } else {
  83                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  84                 }
  85         }
  86
  87         // Is this a reply to something?
  88         $toplevel_item_id = intval(defaults($_REQUEST, 'parent', 0));
  89         $thr_parent_uri = trim(defaults($_REQUEST, 'parent_uri', ''));
  90
  91         $thread_parent_id = 0;
  92         $thread_parent_contact = null;
  93
  94         $toplevel_item = null;
  95         $parent_user = null;
  96
  97         $parent_contact = null;
  98
  99         $objecttype = null;
 100         $profile_uid = defaults($_REQUEST, 'profile_uid', local_user());
 101         $posttype = defaults($_REQUEST, 'post_type', Item::PT_ARTICLE);
 102
 103         if ($toplevel_item_id || $thr_parent_uri) {
 104                 if ($toplevel_item_id) {
 105                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 106                 } elseif ($thr_parent_uri) {
 107                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 108                 }
 109
 110                 // if this isn't the top-level parent of the conversation, find it
 111                 if (DBA::isResult($toplevel_item)) {
 112                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 113                         $thread_parent_id = $toplevel_item['id'];
 114                         $thr_parent_uri = $toplevel_item['uri'];
 115                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 116
 117                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 118                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 119                         }
 120                 }
 121
 122                 if (!DBA::isResult($toplevel_item)) {
 123                         notice(L10n::t('Unable to locate original post.') . EOL);
 124                         if (!empty($_REQUEST['return'])) {
 125                                 $a->internalRedirect($return_path);
 126                         }
 127                         exit();
 128                 }
 129
 130                 $toplevel_item_id = $toplevel_item['id'];
 131                 $parent_user = $toplevel_item['uid'];
 132
 133                 $objecttype = ACTIVITY_OBJ_COMMENT;
 134         }
 135
 136         if ($toplevel_item_id) {
 137                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 138         }
 139
 140         $post_id     = intval(defaults($_REQUEST, 'post_id', 0));
 141         $app         = strip_tags(defaults($_REQUEST, 'source', ''));
 142         $extid       = strip_tags(defaults($_REQUEST, 'extid', ''));
 143         $object      = defaults($_REQUEST, 'object', '');
 144
 145         // Don't use "defaults" here. It would turn 0 to 1
 146         if (!isset($_REQUEST['wall'])) {
 147                 $wall = 1;
 148         } else {
 149                 $wall = $_REQUEST['wall'];
 150         }
 151
 152         // Ensure that the user id in a thread always stay the same
 153         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 154                 $profile_uid = $parent_user;
 155         }
 156
 157         // Check for multiple posts with the same message id (when the post was created via API)
 158         if (($message_id != '') && ($profile_uid != 0)) {
 159                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 160                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 161                         return 0;
 162                 }
 163         }
 164
 165         // Allow commenting if it is an answer to a public post
 166         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 167
 168         // Now check that valid personal details have been provided
 169         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 170                 notice(L10n::t('Permission denied.') . EOL);
 171
 172                 if (!empty($_REQUEST['return'])) {
 173                         $a->internalRedirect($return_path);
 174                 }
 175
 176                 exit();
 177         }
 178
 179         // Init post instance
 180         $orig_post = null;
 181
 182         // is this an edited post?
 183         if ($post_id > 0) {
 184                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 185         }
 186
 187         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 188
 189         if (!DBA::isResult($user) && !$toplevel_item_id) {
 190                 return 0;
 191         }
 192
 193         $categories = '';
 194         $postopts = '';
 195         $emailcc = '';
 196         $body = defaults($_REQUEST, 'body', '');
 197         $has_attachment = defaults($_REQUEST, 'has_attachment', 0);
 198
 199         // If we have a speparate attachment, we need to add it to the body.
 200         if (!empty($has_attachment)) {
 201                 $attachment_type  = defaults($_REQUEST, 'attachment_type',  '');
 202                 $attachment_title = defaults($_REQUEST, 'attachment_title', '');
 203                 $attachment_text  = defaults($_REQUEST, 'attachment_text',  '');
 204
 205                 $attachment_url     = hex2bin(defaults($_REQUEST, 'attachment_url',     ''));
 206                 $attachment_img_src = hex2bin(defaults($_REQUEST, 'attachment_img_src', ''));
 207
 208                 $attachment_img_width  = defaults($_REQUEST, 'attachment_img_width',  0);
 209                 $attachment_img_height = defaults($_REQUEST, 'attachment_img_height', 0);
 210                 $attachment = [
 211                         'type'   => $attachment_type,
 212                         'title'  => $attachment_title,
 213                         'text'   => $attachment_text,
 214                         'url'    => $attachment_url,
 215                 ];
 216
 217                 if (!empty($attachment_img_src)) {
 218                         $attachment['images'] = [
 219                                 0 => [
 220                                         'src'    => $attachment_img_src,
 221                                         'width'  => $attachment_img_width,
 222                                         'height' => $attachment_img_height
 223                                 ]
 224                         ];
 225                 }
 226
 227                 $att_bbcode = add_page_info_data($attachment);
 228                 $body .= $att_bbcode;
 229         }
 230
 231         if (!empty($orig_post)) {
 232                 $str_group_allow   = $orig_post['allow_gid'];
 233                 $str_contact_allow = $orig_post['allow_cid'];
 234                 $str_group_deny    = $orig_post['deny_gid'];
 235                 $str_contact_deny  = $orig_post['deny_cid'];
 236                 $location          = $orig_post['location'];
 237                 $coord             = $orig_post['coord'];
 238                 $verb              = $orig_post['verb'];
 239                 $objecttype        = $orig_post['object-type'];
 240                 $app               = $orig_post['app'];
 241                 $categories        = $orig_post['file'];
 242                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 243                 $body              = Strings::escapeHtml(trim($body));
 244                 $private           = $orig_post['private'];
 245                 $pubmail_enabled   = $orig_post['pubmail'];
 246                 $network           = $orig_post['network'];
 247                 $guid              = $orig_post['guid'];
 248                 $extid             = $orig_post['extid'];
 249
 250         } else {
 251
 252                 /*
 253                  * if coming from the API and no privacy settings are set,
 254                  * use the user default permissions - as they won't have
 255                  * been supplied via a form.
 256                  */
 257                 if ($api_source
 258                         && !array_key_exists('contact_allow', $_REQUEST)
 259                         && !array_key_exists('group_allow', $_REQUEST)
 260                         && !array_key_exists('contact_deny', $_REQUEST)
 261                         && !array_key_exists('group_deny', $_REQUEST)) {
 262                         $str_group_allow   = $user['allow_gid'];
 263                         $str_contact_allow = $user['allow_cid'];
 264                         $str_group_deny    = $user['deny_gid'];
 265                         $str_contact_deny  = $user['deny_cid'];
 266                 } else {
 267                         // use the posted permissions
 268                         $str_group_allow   = perms2str(defaults($_REQUEST, 'group_allow', ''));
 269                         $str_contact_allow = perms2str(defaults($_REQUEST, 'contact_allow', ''));
 270                         $str_group_deny    = perms2str(defaults($_REQUEST, 'group_deny', ''));
 271                         $str_contact_deny  = perms2str(defaults($_REQUEST, 'contact_deny', ''));
 272                 }
 273
 274                 $title             = Strings::escapeTags(trim(defaults($_REQUEST, 'title'   , '')));
 275                 $location          = Strings::escapeTags(trim(defaults($_REQUEST, 'location', '')));
 276                 $coord             = Strings::escapeTags(trim(defaults($_REQUEST, 'coord'   , '')));
 277                 $verb              = Strings::escapeTags(trim(defaults($_REQUEST, 'verb'    , '')));
 278                 $emailcc           = Strings::escapeTags(trim(defaults($_REQUEST, 'emailcc' , '')));
 279                 $body              = Strings::escapeHtml(trim($body));
 280                 $network           = Strings::escapeTags(trim(defaults($_REQUEST, 'network' , Protocol::DFRN)));
 281                 $guid              = System::createUUID();
 282
 283                 $postopts = defaults($_REQUEST, 'postopts', '');
 284
 285                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 286
 287                 if ($user['hidewall']) {
 288                         $private = 2;
 289                 }
 290
 291                 // If this is a comment, set the permissions from the parent.
 292
 293                 if ($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                 $pubmail_enabled = defaults($_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         $categories = FileTag::listToFile(trim(defaults($_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                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 355         } elseif (remote_user()) {
 356                 if (!empty($_SESSION['remote']) && is_array($_SESSION['remote'])) {
 357                         foreach ($_SESSION['remote'] as $v) {
 358                                 if ($v['uid'] == $profile_uid) {
 359                                         $contact_id = $v['cid'];
 360                                         break;
 361                                 }
 362                         }
 363                 }
 364                 if ($contact_id) {
 365                         $author = DBA::selectFirst('contact', [], ['id' => $contact_id]);
 366                 }
 367         }
 368
 369         if (DBA::isResult($author)) {
 370                 $contact_id = $author['id'];
 371         }
 372
 373         // get contact info for owner
 374         if ($profile_uid == local_user() || $allow_comment) {
 375                 $contact_record = $author;
 376         } else {
 377                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 378         }
 379
 380         // Look for any tags and linkify them
 381         $str_tags = '';
 382         $inform   = '';
 383
 384         $tags = BBCode::getTags($body);
 385
 386         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 387                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 388         }
 389
 390         $tagged = [];
 391
 392         $private_forum = false;
 393         $only_to_forum = false;
 394         $forum_contact = [];
 395
 396         if (count($tags)) {
 397                 foreach ($tags as $tag) {
 398                         $tag_type = substr($tag, 0, 1);
 399
 400                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 401                                 continue;
 402                         }
 403
 404                         /*
 405                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 406                          * Robert Johnson should be first in the $tags array
 407                          */
 408                         $fullnametagged = false;
 409                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 410                         foreach ($tagged as $nextTag) {
 411                                 if (stristr($nextTag, $tag . ' ')) {
 412                                         $fullnametagged = true;
 413                                         break;
 414                                 }
 415                         }
 416                         if ($fullnametagged) {
 417                                 continue;
 418                         }
 419
 420                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 421                         if ($success['replaced']) {
 422                                 $tagged[] = $tag;
 423                         }
 424                         // When the forum is private or the forum is addressed with a "!" make the post private
 425                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 426                                 $private_forum = $success['contact']['prv'];
 427                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 428                                 $private_id = $success['contact']['id'];
 429                                 $forum_contact = $success['contact'];
 430                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 431                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 432                                 $private_forum = false;
 433                                 $only_to_forum = true;
 434                                 $private_id = $success['contact']['id'];
 435                                 $forum_contact = $success['contact'];
 436                         }
 437                 }
 438         }
 439
 440         $original_contact_id = $contact_id;
 441
 442         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 443                 // we tagged a forum in a top level post. Now we change the post
 444                 $private = $private_forum;
 445
 446                 $str_group_allow = '';
 447                 $str_contact_deny = '';
 448                 $str_group_deny = '';
 449                 if ($private_forum) {
 450                         $str_contact_allow = '<' . $private_id . '>';
 451                 } else {
 452                         $str_contact_allow = '';
 453                 }
 454                 $contact_id = $private_id;
 455                 $contact_record = $forum_contact;
 456                 $_REQUEST['origin'] = false;
 457                 $wall = 0;
 458         }
 459
 460         /*
 461          * When a photo was uploaded into the message using the (profile wall) ajax
 462          * uploader, The permissions are initially set to disallow anybody but the
 463          * owner from seeing it. This is because the permissions may not yet have been
 464          * set for the post. If it's private, the photo permissions should be set
 465          * appropriately. But we didn't know the final permissions on the post until
 466          * now. So now we'll look for links of uploaded messages that are in the
 467          * post and set them to the same permissions as the post itself.
 468          */
 469
 470         $match = null;
 471
 472         if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 473                 $objecttype = ACTIVITY_OBJ_IMAGE;
 474         }
 475
 476         /*
 477          * Next link in any attachment references we find in the post.
 478          */
 479         $match = false;
 480
 481         /// @todo these lines should be moved to Model/Attach (Once it exists)
 482         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 483                 $attaches = $match[1];
 484                 if (count($attaches)) {
 485                         foreach ($attaches as $attach) {
 486                                 // Ensure to only modify attachments that you own
 487                                 $srch = '<' . intval($original_contact_id) . '>';
 488
 489                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 490                                                 'id' => $attach];
 491                                 if (!Attach::exists($condition)) {
 492                                         continue;
 493                                 }
 494
 495                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 496                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 497                                 $condition = ['id' => $attach];
 498                                 Attach::update($fields, $condition);
 499                         }
 500                 }
 501         }
 502
 503         // embedded bookmark or attachment in post? set bookmark flag
 504
 505         $data = BBCode::getAttachmentData($body);
 506         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 507                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 508                 $posttype = Item::PT_PAGE;
 509                 $objecttype = ACTIVITY_OBJ_BOOKMARK;
 510         }
 511
 512         $body = bb_translate_video($body);
 513
 514
 515         // Fold multi-line [code] sequences
 516         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 517
 518         $body = BBCode::scaleExternalImages($body, false);
 519
 520         // Setting the object type if not defined before
 521         if (!$objecttype) {
 522                 $objecttype = ACTIVITY_OBJ_NOTE; // Default value
 523                 $objectdata = BBCode::getAttachedData($body);
 524
 525                 if ($objectdata["type"] == "link") {
 526                         $objecttype = ACTIVITY_OBJ_BOOKMARK;
 527                 } elseif ($objectdata["type"] == "video") {
 528                         $objecttype = ACTIVITY_OBJ_VIDEO;
 529                 } elseif ($objectdata["type"] == "photo") {
 530                         $objecttype = ACTIVITY_OBJ_IMAGE;
 531                 }
 532
 533         }
 534
 535         $attachments = '';
 536         $match = false;
 537
 538         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 539                 foreach ($match[2] as $mtch) {
 540                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 541                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 542                         if ($attachment !== false) {
 543                                 if (strlen($attachments)) {
 544                                         $attachments .= ',';
 545                                 }
 546                                 $attachments .= '[attach]href="' . System::baseUrl() . '/attach/' . $attachment['id'] .
 547                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 548                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 549                         }
 550                         $body = str_replace($match[1],'',$body);
 551                 }
 552         }
 553
 554         if (!strlen($verb)) {
 555                 $verb = ACTIVITY_POST;
 556         }
 557
 558         if ($network == "") {
 559                 $network = Protocol::DFRN;
 560         }
 561
 562         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 563
 564         // even if the post arrived via API we are considering that it
 565         // originated on this site by default for determining relayability.
 566
 567         // Don't use "defaults" here. It would turn 0 to 1
 568         if (!isset($_REQUEST['origin'])) {
 569                 $origin = 1;
 570         } else {
 571                 $origin = $_REQUEST['origin'];
 572         }
 573
 574         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 575
 576         // Fallback so that we alway have a parent uri
 577         if (!$thr_parent_uri || !$toplevel_item_id) {
 578                 $thr_parent_uri = $uri;
 579         }
 580
 581         $datarray = [];
 582         $datarray['uid']           = $profile_uid;
 583         $datarray['wall']          = $wall;
 584         $datarray['gravity']       = $gravity;
 585         $datarray['network']       = $network;
 586         $datarray['contact-id']    = $contact_id;
 587         $datarray['owner-name']    = $contact_record['name'];
 588         $datarray['owner-link']    = $contact_record['url'];
 589         $datarray['owner-avatar']  = $contact_record['thumb'];
 590         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 591         $datarray['author-name']   = $author['name'];
 592         $datarray['author-link']   = $author['url'];
 593         $datarray['author-avatar'] = $author['thumb'];
 594         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 595         $datarray['created']       = DateTimeFormat::utcNow();
 596         $datarray['edited']        = DateTimeFormat::utcNow();
 597         $datarray['commented']     = DateTimeFormat::utcNow();
 598         $datarray['received']      = DateTimeFormat::utcNow();
 599         $datarray['changed']       = DateTimeFormat::utcNow();
 600         $datarray['extid']         = $extid;
 601         $datarray['guid']          = $guid;
 602         $datarray['uri']           = $uri;
 603         $datarray['title']         = $title;
 604         $datarray['body']          = $body;
 605         $datarray['app']           = $app;
 606         $datarray['location']      = $location;
 607         $datarray['coord']         = $coord;
 608         $datarray['tag']           = $str_tags;
 609         $datarray['file']          = $categories;
 610         $datarray['inform']        = $inform;
 611         $datarray['verb']          = $verb;
 612         $datarray['post-type']     = $posttype;
 613         $datarray['object-type']   = $objecttype;
 614         $datarray['allow_cid']     = $str_contact_allow;
 615         $datarray['allow_gid']     = $str_group_allow;
 616         $datarray['deny_cid']      = $str_contact_deny;
 617         $datarray['deny_gid']      = $str_group_deny;
 618         $datarray['private']       = $private;
 619         $datarray['pubmail']       = $pubmail_enabled;
 620         $datarray['attach']        = $attachments;
 621
 622         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 623         $datarray['parent-uri']    = $thr_parent_uri;
 624
 625         $datarray['postopts']      = $postopts;
 626         $datarray['origin']        = $origin;
 627         $datarray['moderated']     = false;
 628         $datarray['object']        = $object;
 629
 630         /*
 631          * These fields are for the convenience of addons...
 632          * 'self' if true indicates the owner is posting on their own wall
 633          * If parent is 0 it is a top-level post.
 634          */
 635         $datarray['parent']        = $toplevel_item_id;
 636         $datarray['self']          = $self;
 637
 638         // This triggers posts via API and the mirror functions
 639         $datarray['api_source'] = $api_source;
 640
 641         // This field is for storing the raw conversation data
 642         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 643
 644         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 645         if (DBA::isResult($conversation)) {
 646                 if ($conversation['conversation-uri'] != '') {
 647                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 648                 }
 649                 if ($conversation['conversation-href'] != '') {
 650                         $datarray['conversation-href'] = $conversation['conversation-href'];
 651                 }
 652         }
 653
 654         if ($orig_post) {
 655                 $datarray['edit'] = true;
 656         } else {
 657                 $datarray['edit'] = false;
 658         }
 659
 660         // Check for hashtags in the body and repair or add hashtag links
 661         if ($preview || $orig_post) {
 662                 Item::setHashtags($datarray);
 663         }
 664
 665         // preview mode - prepare the body for display and send it via json
 666         if ($preview) {
 667                 // We set the datarray ID to -1 because in preview mode the dataray
 668                 // doesn't have an ID.
 669                 $datarray["id"] = -1;
 670                 $datarray["item_id"] = -1;
 671                 $datarray["author-network"] = Protocol::DFRN;
 672
 673                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager($a->query_string), 'search', false, true);
 674                 Logger::log('preview: ' . $o);
 675                 echo json_encode(['preview' => $o]);
 676                 exit();
 677         }
 678
 679         Hook::callAll('post_local',$datarray);
 680
 681         if (!empty($datarray['cancel'])) {
 682                 Logger::log('mod_item: post cancelled by addon.');
 683                 if ($return_path) {
 684                         $a->internalRedirect($return_path);
 685                 }
 686
 687                 $json = ['cancel' => 1];
 688                 if (!empty($_REQUEST['jsreload'])) {
 689                         $json['reload'] = System::baseUrl() . '/' . $_REQUEST['jsreload'];
 690                 }
 691
 692                 echo json_encode($json);
 693                 exit();
 694         }
 695
 696         if ($orig_post) {
 697                 // Fill the cache field
 698                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 699                 Item::putInCache($datarray);
 700
 701                 $fields = [
 702                         'title' => $datarray['title'],
 703                         'body' => $datarray['body'],
 704                         'tag' => $datarray['tag'],
 705                         'attach' => $datarray['attach'],
 706                         'file' => $datarray['file'],
 707                         'rendered-html' => $datarray['rendered-html'],
 708                         'rendered-hash' => $datarray['rendered-hash'],
 709                         'edited' => DateTimeFormat::utcNow(),
 710                         'changed' => DateTimeFormat::utcNow()];
 711
 712                 Item::update($fields, ['id' => $post_id]);
 713
 714                 // update filetags in pconfig
 715                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 716
 717                 if (!empty($_REQUEST['return']) && strlen($return_path)) {
 718                         Logger::log('return: ' . $return_path);
 719                         $a->internalRedirect($return_path);
 720                 }
 721                 exit();
 722         }
 723
 724         unset($datarray['edit']);
 725         unset($datarray['self']);
 726         unset($datarray['api_source']);
 727
 728         if ($origin) {
 729                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 730                 if (!empty($signed)) {
 731                         $datarray['diaspora_signed_text'] = json_encode($signed);
 732                 }
 733         }
 734
 735         $post_id = Item::insert($datarray);
 736
 737         if (!$post_id) {
 738                 Logger::log("Item wasn't stored.");
 739                 $a->internalRedirect($return_path);
 740         }
 741
 742         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 743
 744         if (!DBA::isResult($datarray)) {
 745                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 746                 $a->internalRedirect($return_path);
 747         }
 748
 749         // update filetags in pconfig
 750         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 751
 752         // These notifications are sent if someone else is commenting other your wall
 753         if ($toplevel_item_id) {
 754                 if ($contact_record != $author) {
 755                         notification([
 756                                 'type'         => NOTIFY_COMMENT,
 757                                 'notify_flags' => $user['notify-flags'],
 758                                 'language'     => $user['language'],
 759                                 'to_name'      => $user['username'],
 760                                 'to_email'     => $user['email'],
 761                                 'uid'          => $user['uid'],
 762                                 'item'         => $datarray,
 763                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 764                                 'source_name'  => $datarray['author-name'],
 765                                 'source_link'  => $datarray['author-link'],
 766                                 'source_photo' => $datarray['author-avatar'],
 767                                 'verb'         => ACTIVITY_POST,
 768                                 'otype'        => 'item',
 769                                 'parent'       => $toplevel_item_id,
 770                                 'parent_uri'   => $toplevel_item['uri']
 771                         ]);
 772                 }
 773         } else {
 774                 if (($contact_record != $author) && !count($forum_contact)) {
 775                         notification([
 776                                 'type'         => NOTIFY_WALL,
 777                                 'notify_flags' => $user['notify-flags'],
 778                                 'language'     => $user['language'],
 779                                 'to_name'      => $user['username'],
 780                                 'to_email'     => $user['email'],
 781                                 'uid'          => $user['uid'],
 782                                 'item'         => $datarray,
 783                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 784                                 'source_name'  => $datarray['author-name'],
 785                                 'source_link'  => $datarray['author-link'],
 786                                 'source_photo' => $datarray['author-avatar'],
 787                                 'verb'         => ACTIVITY_POST,
 788                                 'otype'        => 'item'
 789                         ]);
 790                 }
 791         }
 792
 793         Hook::callAll('post_local_end', $datarray);
 794
 795         if (strlen($emailcc) && $profile_uid == local_user()) {
 796                 $erecips = explode(',', $emailcc);
 797                 if (count($erecips)) {
 798                         foreach ($erecips as $recip) {
 799                                 $addr = trim($recip);
 800                                 if (!strlen($addr)) {
 801                                         continue;
 802                                 }
 803                                 $disclaimer = '<hr />' . L10n::t('This message was sent to you by %s, a member of the Friendica social network.', $a->user['username'])
 804                                         . '<br />';
 805                                 $disclaimer .= L10n::t('You may visit them online at %s', System::baseUrl() . '/profile/' . $a->user['nickname']) . EOL;
 806                                 $disclaimer .= L10n::t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 807                                 if (!$datarray['title']=='') {
 808                                         $subject = Email::encodeHeader($datarray['title'], 'UTF-8');
 809                                 } else {
 810                                         $subject = Email::encodeHeader('[Friendica]' . ' ' . L10n::t('%s posted an update.', $a->user['username']), 'UTF-8');
 811                                 }
 812                                 $link = '<a href="' . System::baseUrl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 813                                 $html    = Item::prepareBody($datarray);
 814                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 815                                 $params =  [
 816                                         'fromName' => $a->user['username'],
 817                                         'fromEmail' => $a->user['email'],
 818                                         'toEmail' => $addr,
 819                                         'replyTo' => $a->user['email'],
 820                                         'messageSubject' => $subject,
 821                                         'htmlVersion' => $message,
 822                                         'textVersion' => HTML::toPlaintext($html.$disclaimer)
 823                                 ];
 824                                 Emailer::send($params);
 825                         }
 826                 }
 827         }
 828
 829         // Insert an item entry for UID=0 for global entries.
 830         // We now do it in the background to save some time.
 831         // This is important in interactive environments like the frontend or the API.
 832         // We don't fork a new process since this is done anyway with the following command
 833         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 834
 835         // When we are doing some forum posting via ! we have to start the notifier manually.
 836         // These kind of posts don't initiate the notifier call in the item class.
 837         if ($only_to_forum) {
 838                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 839         }
 840
 841         Logger::log('post_complete');
 842
 843         if ($api_source) {
 844                 return $post_id;
 845         }
 846
 847         item_post_return(System::baseUrl(), $api_source, $return_path);
 848         // NOTREACHED
 849 }
 850
 851 function item_post_return($baseurl, $api_source, $return_path)
 852 {
 853         // figure out how to return, depending on from whence we came
 854     $a = \get_app();
 855
 856         if ($api_source) {
 857                 return;
 858         }
 859
 860         if ($return_path) {
 861                 $a->internalRedirect($return_path);
 862         }
 863
 864         $json = ['success' => 1];
 865         if (!empty($_REQUEST['jsreload'])) {
 866                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 867         }
 868
 869         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 870
 871         echo json_encode($json);
 872         exit();
 873 }
 874
 875 function item_content(App $a)
 876 {
 877         if (!local_user() && !remote_user()) {
 878                 return;
 879         }
 880
 881         $o = '';
 882
 883         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 884                 if ($a->isAjax()) {
 885                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 886                 } else {
 887                         if (!empty($a->argv[3])) {
 888                                 $o = drop_item($a->argv[2], $a->argv[3]);
 889                         }
 890                         else {
 891                                 $o = drop_item($a->argv[2]);
 892                         }
 893                 }
 894
 895                 if ($a->isAjax()) {
 896                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 897                         echo json_encode([intval($a->argv[2]), intval($o)]);
 898                         exit();
 899                 }
 900         }
 901
 902         return $o;
 903 }
 904
 905 /**
 906  * This function removes the tag $tag from the text $body and replaces it with
 907  * the appropriate link.
 908  *
 909  * @param App     $a
 910  * @param string  $body     the text to replace the tag in
 911  * @param string  $inform   a comma-seperated string containing everybody to inform
 912  * @param string  $str_tags string to add the tag to
 913  * @param integer $profile_uid
 914  * @param string  $tag      the tag to replace
 915  * @param string  $network  The network of the post
 916  *
 917  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 918  * @throws ImagickException
 919  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 920  */
 921 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 922 {
 923         $replaced = false;
 924         $r = null;
 925
 926         //is it a person tag?
 927         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 928                 $tag_type = substr($tag, 0, 1);
 929                 //is it already replaced?
 930                 if (strpos($tag, '[url=')) {
 931                         //append tag to str_tags
 932                         if (!stristr($str_tags, $tag)) {
 933                                 if (strlen($str_tags)) {
 934                                         $str_tags .= ',';
 935                                 }
 936                                 $str_tags .= $tag;
 937                         }
 938
 939                         // Checking for the alias that is used for OStatus
 940                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 941                         if (preg_match($pattern, $tag, $matches)) {
 942                                 $data = Contact::getDetailsByURL($matches[1]);
 943
 944                                 if ($data["alias"] != "") {
 945                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 946
 947                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 948                                                 if (strlen($str_tags)) {
 949                                                         $str_tags .= ',';
 950                                                 }
 951
 952                                                 $str_tags .= $newtag;
 953                                         }
 954                                 }
 955                         }
 956
 957                         return $replaced;
 958                 }
 959
 960                 //get the person's name
 961                 $name = substr($tag, 1);
 962
 963                 // Sometimes the tag detection doesn't seem to work right
 964                 // This is some workaround
 965                 $nameparts = explode(" ", $name);
 966                 $name = $nameparts[0];
 967
 968                 // Try to detect the contact in various ways
 969                 if (strpos($name, 'http://')) {
 970                         // At first we have to ensure that the contact exists
 971                         Contact::getIdForURL($name);
 972
 973                         // Now we should have something
 974                         $contact = Contact::getDetailsByURL($name);
 975                 } elseif (strpos($name, '@')) {
 976                         // This function automatically probes when no entry was found
 977                         $contact = Contact::getDetailsByAddr($name);
 978                 } else {
 979                         $contact = false;
 980                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 981
 982                         if (strrpos($name, '+')) {
 983                                 // Is it in format @nick+number?
 984                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 985                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 986                         }
 987
 988                         // select someone by nick or attag in the current network
 989                         if (!DBA::isResult($contact) && ($network != "")) {
 990                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 991                                                 $name, $name, $network, $profile_uid];
 992                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 993                         }
 994
 995                         //select someone by name in the current network
 996                         if (!DBA::isResult($contact) && ($network != "")) {
 997                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 998                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 999                         }
1000
1001                         // select someone by nick or attag in any network
1002                         if (!DBA::isResult($contact)) {
1003                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
1004                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1005                         }
1006
1007                         // select someone by name in any network
1008                         if (!DBA::isResult($contact)) {
1009                                 $condition = ['name' => $name, 'uid' => $profile_uid];
1010                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1011                         }
1012                 }
1013
1014                 // Check if $contact has been successfully loaded
1015                 if (DBA::isResult($contact)) {
1016                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
1017                                 $inform .= ',';
1018                         }
1019
1020                         if (isset($contact["id"])) {
1021                                 $inform .= 'cid:' . $contact["id"];
1022                         } elseif (isset($contact["notify"])) {
1023                                 $inform  .= $contact["notify"];
1024                         }
1025
1026                         $profile = $contact["url"];
1027                         $alias   = $contact["alias"];
1028                         $newname = defaults($contact, "name", $contact["nick"]);
1029                 }
1030
1031                 //if there is an url for this persons profile
1032                 if (isset($profile) && ($newname != "")) {
1033                         $replaced = true;
1034                         // create profile link
1035                         $profile = str_replace(',', '%2c', $profile);
1036                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1037                         $body = str_replace($tag_type . $name, $newtag, $body);
1038                         // append tag to str_tags
1039                         if (!stristr($str_tags, $newtag)) {
1040                                 if (strlen($str_tags)) {
1041                                         $str_tags .= ',';
1042                                 }
1043                                 $str_tags .= $newtag;
1044                         }
1045
1046                         /*
1047                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1048                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1049                          */
1050                         if (!empty($alias)) {
1051                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1052                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1053                                         if (strlen($str_tags)) {
1054                                                 $str_tags .= ',';
1055                                         }
1056                                         $str_tags .= $newtag;
1057                                 }
1058                         }
1059                 }
1060         }
1061
1062         return ['replaced' => $replaced, 'contact' => $contact];
1063 }
1064
1065 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1066 {
1067         if (Config::get('system', 'disable_implicit_mentions')) {
1068                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1069                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1070                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1071                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1072                                 $tags[] = $contact;
1073                         }
1074                 }
1075         } else {
1076                 $implicit_mentions = [
1077                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1078                 ];
1079
1080                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1081
1082                 foreach ($parent_terms as $parent_term) {
1083                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1084                 }
1085
1086                 foreach ($implicit_mentions as $url => $label) {
1087                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1088                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1089                         }
1090                 }
1091         }
1092
1093         return $tags;
1094 }