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 use Friendica\App;
  18 use Friendica\Core\Addon;
  19 use Friendica\Core\Config;
  20 use Friendica\Core\System;
  21 use Friendica\Core\Worker;
  22 use Friendica\Database\DBM;
  23 use Friendica\Model\Contact;
  24 use Friendica\Model\GContact;
  25 use Friendica\Model\Item;
  26 use Friendica\Network\Probe;
  27 use Friendica\Protocol\Diaspora;
  28 use Friendica\Protocol\Email;
  29 use Friendica\Util\Emailer;
  30
  31 require_once 'include/enotify.php';
  32 require_once 'include/tags.php';
  33 require_once 'include/threads.php';
  34 require_once 'include/text.php';
  35 require_once 'include/items.php';
  36
  37 function item_post(App $a) {
  38         if (!local_user() && !remote_user()) {
  39                 return;
  40         }
  41
  42         require_once 'include/security.php';
  43
  44         $uid = local_user();
  45
  46         if (x($_REQUEST, 'dropitems')) {
  47                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  48                 drop_items($arr_drop);
  49                 $json = ['success' => 1];
  50                 echo json_encode($json);
  51                 killme();
  52         }
  53
  54         Addon::callHooks('post_local_start', $_REQUEST);
  55
  56         logger('postvars ' . print_r($_REQUEST,true), LOGGER_DATA);
  57
  58         $api_source = defaults($_REQUEST, 'api_source', false);
  59
  60         $message_id = ((x($_REQUEST, 'message_id') && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  61
  62         $return_path = defaults($_REQUEST, 'return', '');
  63         $preview = intval(defaults($_REQUEST, 'preview', 0));
  64
  65         /*
  66          * Check for doubly-submitted posts, and reject duplicates
  67          * Note that we have to ignore previews, otherwise nothing will post
  68          * after it's been previewed
  69          */
  70         if (!$preview && x($_REQUEST, 'post_id_random')) {
  71                 if (x($_SESSION, 'post-random') && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  72                         logger("item post: duplicate post", LOGGER_DEBUG);
  73                         item_post_return(System::baseUrl(), $api_source, $return_path);
  74                 } else {
  75                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  76                 }
  77         }
  78
  79         // Is this a reply to something?
  80         $thr_parent = intval(defaults($_REQUEST, 'parent', 0));
  81         $thr_parent_uri = trim(defaults($_REQUEST, 'parent_uri', ''));
  82
  83         $thr_parent_contact = null;
  84
  85         $parent = 0;
  86         $parent_item = null;
  87         $parent_user = null;
  88
  89         $parent_contact = null;
  90
  91         $objecttype = null;
  92         $profile_uid = defaults($_REQUEST, 'profile_uid', local_user());
  93
  94         if ($thr_parent || $thr_parent_uri) {
  95                 if ($thr_parent) {
  96                         $parent_item = dba::selectFirst('item', [], ['id' => $thr_parent]);
  97                 } elseif ($thr_parent_uri) {
  98                         $parent_item = dba::selectFirst('item', [], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
  99                 }
 100
 101                 // if this isn't the real parent of the conversation, find it
 102                 if (DBM::is_result($parent_item)) {
 103
 104                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 105                         $thr_parent_uri = $parent_item['uri'];
 106                         $thr_parent_contact = Contact::getDetailsByURL($parent_item["author-link"]);
 107
 108                         if ($parent_item['id'] != $parent_item['parent']) {
 109                                 $parent_item = dba::selectFirst('item', [], ['id' => $parent_item['parent']]);
 110                         }
 111                 }
 112
 113                 if (!DBM::is_result($parent_item)) {
 114                         notice(t('Unable to locate original post.') . EOL);
 115                         if (x($_REQUEST, 'return')) {
 116                                 goaway($return_path);
 117                         }
 118                         killme();
 119                 }
 120
 121                 $parent = $parent_item['id'];
 122                 $parent_user = $parent_item['uid'];
 123
 124                 $parent_contact = Contact::getDetailsByURL($parent_item["author-link"]);
 125
 126                 $objecttype = ACTIVITY_OBJ_COMMENT;
 127
 128                 if (!x($_REQUEST, 'type')) {
 129                         $_REQUEST['type'] = 'net-comment';
 130                 }
 131         }
 132
 133         if ($parent) {
 134                 logger('mod_item: item_post parent=' . $parent);
 135         }
 136
 137         $post_id     = intval(defaults($_REQUEST, 'post_id', 0));
 138         $app         = strip_tags(defaults($_REQUEST, 'source', ''));
 139         $extid       = strip_tags(defaults($_REQUEST, 'extid', ''));
 140         $object      = defaults($_REQUEST, 'object', '');
 141
 142         // Ensure that the user id in a thread always stay the same
 143         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 144                 $profile_uid = $parent_user;
 145         }
 146
 147         // Check for multiple posts with the same message id (when the post was created via API)
 148         if (($message_id != '') && ($profile_uid != 0)) {
 149                 if (dba::exists('item', ['uri' => $message_id, 'uid' => $profile_uid])) {
 150                         logger("Message with URI ".$message_id." already exists for user ".$profile_uid, LOGGER_DEBUG);
 151                         return;
 152                 }
 153         }
 154
 155         // Allow commenting if it is an answer to a public post
 156         $allow_comment = local_user() && ($profile_uid == 0) && $parent && in_array($parent_item['network'], [NETWORK_OSTATUS, NETWORK_DIASPORA, NETWORK_DFRN]);
 157
 158         // Now check that valid personal details have been provided
 159         if (!can_write_wall($profile_uid) && !$allow_comment) {
 160                 notice(t('Permission denied.') . EOL) ;
 161                 if (x($_REQUEST, 'return')) {
 162                         goaway($return_path);
 163                 }
 164                 killme();
 165         }
 166
 167
 168         // is this an edited post?
 169
 170         $orig_post = null;
 171
 172         if ($post_id) {
 173                 $orig_post = dba::selectFirst('item', [], ['id' => $post_id]);
 174         }
 175
 176         $user = dba::selectFirst('user', [], ['uid' => $profile_uid]);
 177         if (!DBM::is_result($user) && !$orig_post) {
 178                 return;
 179         }
 180
 181         if ($orig_post) {
 182                 $str_group_allow   = $orig_post['allow_gid'];
 183                 $str_contact_allow = $orig_post['allow_cid'];
 184                 $str_group_deny    = $orig_post['deny_gid'];
 185                 $str_contact_deny  = $orig_post['deny_cid'];
 186                 $location          = $orig_post['location'];
 187                 $coord             = $orig_post['coord'];
 188                 $verb              = $orig_post['verb'];
 189                 $objecttype        = $orig_post['object-type'];
 190                 $emailcc           = $orig_post['emailcc'];
 191                 $app               = $orig_post['app'];
 192                 $categories        = $orig_post['file'];
 193                 $title             = notags(trim($_REQUEST['title']));
 194                 $body              = escape_tags(trim($_REQUEST['body']));
 195                 $private           = $orig_post['private'];
 196                 $pubmail_enabled   = $orig_post['pubmail'];
 197                 $network           = $orig_post['network'];
 198                 $guid              = $orig_post['guid'];
 199                 $extid             = $orig_post['extid'];
 200
 201         } else {
 202
 203                 /*
 204                  * if coming from the API and no privacy settings are set,
 205                  * use the user default permissions - as they won't have
 206                  * been supplied via a form.
 207                  */
 208                 /// @TODO use x($_REQUEST, 'foo') here
 209                 if ($api_source
 210                         && !array_key_exists('contact_allow', $_REQUEST)
 211                         && !array_key_exists('group_allow', $_REQUEST)
 212                         && !array_key_exists('contact_deny', $_REQUEST)
 213                         && !array_key_exists('group_deny', $_REQUEST)) {
 214                         $str_group_allow   = $user['allow_gid'];
 215                         $str_contact_allow = $user['allow_cid'];
 216                         $str_group_deny    = $user['deny_gid'];
 217                         $str_contact_deny  = $user['deny_cid'];
 218                 } else {
 219                         // use the posted permissions
 220                         $str_group_allow   = perms2str($_REQUEST['group_allow']);
 221                         $str_contact_allow = perms2str($_REQUEST['contact_allow']);
 222                         $str_group_deny    = perms2str($_REQUEST['group_deny']);
 223                         $str_contact_deny  = perms2str($_REQUEST['contact_deny']);
 224                 }
 225
 226                 $title             = notags(trim($_REQUEST['title']));
 227                 $location          = notags(trim($_REQUEST['location']));
 228                 $coord             = notags(trim($_REQUEST['coord']));
 229                 $verb              = notags(trim($_REQUEST['verb']));
 230                 $emailcc           = notags(trim($_REQUEST['emailcc']));
 231                 $body              = escape_tags(trim($_REQUEST['body']));
 232                 $network           = notags(trim($_REQUEST['network']));
 233                 $guid              = get_guid(32);
 234
 235                 item_add_language_opt($_REQUEST);
 236                 $postopts = $_REQUEST['postopts'] ? $_REQUEST['postopts'] : "";
 237
 238                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 239
 240                 if ($user['hidewall']) {
 241                         $private = 2;
 242                 }
 243
 244                 // If this is a comment, set the permissions from the parent.
 245
 246                 if ($parent_item) {
 247
 248                         // for non native networks use the network of the original post as network of the item
 249                         if (($parent_item['network'] != NETWORK_DIASPORA)
 250                                 && ($parent_item['network'] != NETWORK_OSTATUS)
 251                                 && ($network == "")) {
 252                                 $network = $parent_item['network'];
 253                         }
 254
 255                         $str_contact_allow = $parent_item['allow_cid'];
 256                         $str_group_allow   = $parent_item['allow_gid'];
 257                         $str_contact_deny  = $parent_item['deny_cid'];
 258                         $str_group_deny    = $parent_item['deny_gid'];
 259                         $private           = $parent_item['private'];
 260                 }
 261
 262                 $pubmail_enabled = defaults($_REQUEST, 'pubmail_enable', false) && !$private;
 263
 264                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 265                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 266                         if (function_exists('imap_open') && !Config::get('system', 'imap_disabled')) {
 267                                 $pubmail_enabled = dba::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 268                         }
 269                 }
 270
 271                 if (!strlen($body)) {
 272                         if ($preview) {
 273                                 killme();
 274                         }
 275                         info(t('Empty post discarded.') . EOL);
 276                         if (x($_REQUEST, 'return')) {
 277                                 goaway($return_path);
 278                         }
 279                         killme();
 280                 }
 281         }
 282
 283         if (strlen($categories)) {
 284                 // get the "fileas" tags for this post
 285                 $filedas = file_tag_file_to_list($categories, 'file');
 286         }
 287         // save old and new categories, so we can determine what needs to be deleted from pconfig
 288         $categories_old = $categories;
 289         $categories = file_tag_list_to_file(trim($_REQUEST['category']), 'category');
 290         $categories_new = $categories;
 291         if (strlen($filedas)) {
 292                 // append the fileas stuff to the new categories list
 293                 $categories .= file_tag_list_to_file($filedas, 'file');
 294         }
 295
 296         // get contact info for poster
 297
 298         $author = null;
 299         $self   = false;
 300         $contact_id = 0;
 301
 302         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 303                 $self = true;
 304                 $author = dba::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 305         } elseif (remote_user()) {
 306                 if (x($_SESSION, 'remote') && is_array($_SESSION['remote'])) {
 307                         foreach ($_SESSION['remote'] as $v) {
 308                                 if ($v['uid'] == $profile_uid) {
 309                                         $contact_id = $v['cid'];
 310                                         break;
 311                                 }
 312                         }
 313                 }
 314                 if ($contact_id) {
 315                         $author = dba::selectFirst('contact', [], ['id' => $contact_id]);
 316                 }
 317         }
 318
 319         if (DBM::is_result($author)) {
 320                 $contact_id = $author['id'];
 321         }
 322
 323         // get contact info for owner
 324         if ($profile_uid == local_user() || $allow_comment) {
 325                 $contact_record = $author;
 326         } else {
 327                 $contact_record = dba::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 328         }
 329
 330         $post_type = notags(trim($_REQUEST['type']));
 331
 332         if ($post_type === 'net-comment' && $parent_item !== null) {
 333                 if ($parent_item['wall'] == 1) {
 334                         $post_type = 'wall-comment';
 335                 } else {
 336                         $post_type = 'remote-comment';
 337                 }
 338         }
 339
 340         // Look for any tags and linkify them
 341         $str_tags = '';
 342         $inform   = '';
 343
 344         $tags = get_tags($body);
 345
 346         // Add a tag if the parent contact is from OStatus (This will notify them during delivery)
 347         if ($parent) {
 348                 if ($thr_parent_contact['network'] == NETWORK_OSTATUS) {
 349                         $contact = '@[url=' . $thr_parent_contact['url'] . ']' . $thr_parent_contact['nick'] . '[/url]';
 350                         if (!in_array($contact, $tags)) {
 351                                 $tags[] = $contact;
 352                         }
 353                 }
 354
 355                 if ($parent_contact['network'] == NETWORK_OSTATUS) {
 356                         $contact = '@[url=' . $parent_contact['url'] . ']' . $parent_contact['nick'] . '[/url]';
 357                         if (!in_array($contact, $tags)) {
 358                                 $tags[] = $contact;
 359                         }
 360                 }
 361         }
 362
 363         $tagged = [];
 364
 365         $private_forum = false;
 366         $only_to_forum = false;
 367         $forum_contact = [];
 368
 369         if (count($tags)) {
 370                 foreach ($tags as $tag) {
 371
 372                         $tag_type = substr($tag, 0, 1);
 373
 374                         if ($tag_type == '#') {
 375                                 continue;
 376                         }
 377
 378                         /*
 379                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 380                          * Robert Johnson should be first in the $tags array
 381                          */
 382                         $fullnametagged = false;
 383                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 384                         foreach ($tagged as $nextTag) {
 385                                 if (stristr($nextTag, $tag . ' ')) {
 386                                         $fullnametagged = true;
 387                                         break;
 388                                 }
 389                         }
 390                         if ($fullnametagged) {
 391                                 continue;
 392                         }
 393
 394                         $success = handle_tag($a, $body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 395                         if ($success['replaced']) {
 396                                 $tagged[] = $tag;
 397                         }
 398                         // When the forum is private or the forum is addressed with a "!" make the post private
 399                         if (is_array($success['contact']) && ($success['contact']['prv'] || ($tag_type == '!'))) {
 400                                 $private_forum = $success['contact']['prv'];
 401                                 $only_to_forum = ($tag_type == '!');
 402                                 $private_id = $success['contact']['id'];
 403                                 $forum_contact = $success['contact'];
 404                         } elseif (is_array($success['contact']) && $success['contact']['forum'] &&
 405                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 406                                 $private_forum = false;
 407                                 $only_to_forum = true;
 408                                 $private_id = $success['contact']['id'];
 409                                 $forum_contact = $success['contact'];
 410                         }
 411                 }
 412         }
 413
 414         $original_contact_id = $contact_id;
 415
 416         if (!$parent && count($forum_contact) && ($private_forum || $only_to_forum)) {
 417                 // we tagged a forum in a top level post. Now we change the post
 418                 $private = $private_forum;
 419
 420                 $str_group_allow = '';
 421                 $str_contact_deny = '';
 422                 $str_group_deny = '';
 423                 if ($private_forum) {
 424                         $str_contact_allow = '<' . $private_id . '>';
 425                 } else {
 426                         $str_contact_allow = '';
 427                 }
 428                 $contact_id = $private_id;
 429                 $contact_record = $forum_contact;
 430                 $_REQUEST['origin'] = false;
 431         }
 432
 433         /*
 434          * When a photo was uploaded into the message using the (profile wall) ajax
 435          * uploader, The permissions are initially set to disallow anybody but the
 436          * owner from seeing it. This is because the permissions may not yet have been
 437          * set for the post. If it's private, the photo permissions should be set
 438          * appropriately. But we didn't know the final permissions on the post until
 439          * now. So now we'll look for links of uploaded messages that are in the
 440          * post and set them to the same permissions as the post itself.
 441          */
 442
 443         $match = null;
 444
 445         /// @todo these lines should be moved to Model/Photo
 446         if (!$preview && preg_match_all("/\[img([\=0-9x]*?)\](.*?)\[\/img\]/",$body,$match)) {
 447                 $images = $match[2];
 448                 if (count($images)) {
 449
 450                         $objecttype = ACTIVITY_OBJ_IMAGE;
 451
 452                         foreach ($images as $image) {
 453                                 if (!stristr($image, System::baseUrl() . '/photo/')) {
 454                                         continue;
 455                                 }
 456                                 $image_uri = substr($image,strrpos($image,'/') + 1);
 457                                 $image_uri = substr($image_uri,0, strpos($image_uri,'-'));
 458                                 if (!strlen($image_uri)) {
 459                                         continue;
 460                                 }
 461
 462                                 // Ensure to only modify photos that you own
 463                                 $srch = '<' . intval($original_contact_id) . '>';
 464
 465                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 466                                                 'resource-id' => $image_uri, 'uid' => $profile_uid];
 467                                 if (!dba::exists('photo', $condition)) {
 468                                         continue;
 469                                 }
 470
 471                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 472                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 473                                 $condition = ['resource-id' => $image_uri, 'uid' => $profile_uid, 'album' => t('Wall Photos')];
 474                                 dba::update('photo', $fields, $condition);
 475                         }
 476                 }
 477         }
 478
 479
 480         /*
 481          * Next link in any attachment references we find in the post.
 482          */
 483         $match = false;
 484
 485         /// @todo these lines should be moved to Model/Attach (Once it exists)
 486         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 487                 $attaches = $match[1];
 488                 if (count($attaches)) {
 489                         foreach ($attaches as $attach) {
 490                                 // Ensure to only modify attachments that you own
 491                                 $srch = '<' . intval($original_contact_id) . '>';
 492
 493                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 494                                                 'id' => $attach];
 495                                 if (!dba::exists('attach', $condition)) {
 496                                         continue;
 497                                 }
 498
 499                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 500                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 501                                 $condition = ['id' => $attach];
 502                                 dba::update('attach', $fields, $condition);
 503                         }
 504                 }
 505         }
 506
 507         // embedded bookmark or attachment in post? set bookmark flag
 508
 509         $bookmark = 0;
 510         $data = get_attachment_data($body);
 511         if (preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"])) {
 512                 $objecttype = ACTIVITY_OBJ_BOOKMARK;
 513                 $bookmark = 1;
 514         }
 515
 516         $body = bb_translate_video($body);
 517
 518
 519         // Fold multi-line [code] sequences
 520         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 521
 522         $body = scale_external_images($body, false);
 523
 524         // Setting the object type if not defined before
 525         if (!$objecttype) {
 526                 $objecttype = ACTIVITY_OBJ_NOTE; // Default value
 527                 require_once 'include/plaintext.php';
 528                 $objectdata = get_attached_data($body);
 529
 530                 if ($objectdata["type"] == "link") {
 531                         $objecttype = ACTIVITY_OBJ_BOOKMARK;
 532                 } elseif ($objectdata["type"] == "video") {
 533                         $objecttype = ACTIVITY_OBJ_VIDEO;
 534                 } elseif ($objectdata["type"] == "photo") {
 535                         $objecttype = ACTIVITY_OBJ_IMAGE;
 536                 }
 537
 538         }
 539
 540         $attachments = '';
 541         $match = false;
 542
 543         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 544                 foreach ($match[2] as $mtch) {
 545                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 546                         $attachment = dba::selectFirst('attach', $fields, ['id' => $mtch]);
 547                         if (DBM::is_result($attachment)) {
 548                                 if (strlen($attachments)) {
 549                                         $attachments .= ',';
 550                                 }
 551                                 $attachments .= '[attach]href="' . System::baseUrl() . '/attach/' . $attachment['id'] .
 552                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 553                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 554                         }
 555                         $body = str_replace($match[1],'',$body);
 556                 }
 557         }
 558
 559         $wall = 0;
 560
 561         if (($post_type === 'wall' || $post_type === 'wall-comment') && !count($forum_contact)) {
 562                 $wall = 1;
 563         }
 564
 565         if (!strlen($verb)) {
 566                 $verb = ACTIVITY_POST;
 567         }
 568
 569         if ($network == "") {
 570                 $network = NETWORK_DFRN;
 571         }
 572
 573         $gravity = ($parent ? 6 : 0);
 574
 575         // even if the post arrived via API we are considering that it
 576         // originated on this site by default for determining relayability.
 577
 578         $origin = intval(defaults($_REQUEST, 'origin', 1));
 579
 580         $notify_type = ($parent ? 'comment-new' : 'wall-new');
 581
 582         $uri = ($message_id ? $message_id : item_new_uri($a->get_hostname(), $profile_uid, $guid));
 583
 584         // Fallback so that we alway have a parent uri
 585         if (!$thr_parent_uri || !$parent) {
 586                 $thr_parent_uri = $uri;
 587         }
 588
 589         $datarray = [];
 590         $datarray['uid']           = $profile_uid;
 591         $datarray['type']          = $post_type;
 592         $datarray['wall']          = $wall;
 593         $datarray['gravity']       = $gravity;
 594         $datarray['network']       = $network;
 595         $datarray['contact-id']    = $contact_id;
 596         $datarray['owner-name']    = $contact_record['name'];
 597         $datarray['owner-link']    = $contact_record['url'];
 598         $datarray['owner-avatar']  = $contact_record['thumb'];
 599         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link'], 0);
 600         $datarray['author-name']   = $author['name'];
 601         $datarray['author-link']   = $author['url'];
 602         $datarray['author-avatar'] = $author['thumb'];
 603         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link'], 0);
 604         $datarray['created']       = datetime_convert();
 605         $datarray['edited']        = datetime_convert();
 606         $datarray['commented']     = datetime_convert();
 607         $datarray['received']      = datetime_convert();
 608         $datarray['changed']       = datetime_convert();
 609         $datarray['extid']         = $extid;
 610         $datarray['guid']          = $guid;
 611         $datarray['uri']           = $uri;
 612         $datarray['title']         = $title;
 613         $datarray['body']          = $body;
 614         $datarray['app']           = $app;
 615         $datarray['location']      = $location;
 616         $datarray['coord']         = $coord;
 617         $datarray['tag']           = $str_tags;
 618         $datarray['file']          = $categories;
 619         $datarray['inform']        = $inform;
 620         $datarray['verb']          = $verb;
 621         $datarray['object-type']   = $objecttype;
 622         $datarray['allow_cid']     = $str_contact_allow;
 623         $datarray['allow_gid']     = $str_group_allow;
 624         $datarray['deny_cid']      = $str_contact_deny;
 625         $datarray['deny_gid']      = $str_group_deny;
 626         $datarray['private']       = $private;
 627         $datarray['pubmail']       = $pubmail_enabled;
 628         $datarray['attach']        = $attachments;
 629         $datarray['bookmark']      = intval($bookmark);
 630
 631         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 632         $datarray['parent-uri']    = $thr_parent_uri;
 633
 634         $datarray['postopts']      = $postopts;
 635         $datarray['origin']        = $origin;
 636         $datarray['moderated']     = false;
 637         $datarray['gcontact-id']   = GContact::getId(["url" => $datarray['author-link'], "network" => $datarray['network'],
 638                                                         "photo" => $datarray['author-avatar'], "name" => $datarray['author-name']]);
 639         $datarray['object']        = $object;
 640
 641         /*
 642          * These fields are for the convenience of addons...
 643          * 'self' if true indicates the owner is posting on their own wall
 644          * If parent is 0 it is a top-level post.
 645          */
 646         $datarray['parent']        = $parent;
 647         $datarray['self']          = $self;
 648
 649         // This triggers posts via API and the mirror functions
 650         $datarray['api_source'] = $api_source;
 651
 652         // This field is for storing the raw conversation data
 653         $datarray['protocol'] = PROTOCOL_DFRN;
 654
 655         $r = dba::fetch_first("SELECT `conversation-uri`, `conversation-href` FROM `conversation` WHERE `item-uri` = ?", $datarray['parent-uri']);
 656         if (DBM::is_result($r)) {
 657                 if ($r['conversation-uri'] != '') {
 658                         $datarray['conversation-uri'] = $r['conversation-uri'];
 659                 }
 660                 if ($r['conversation-href'] != '') {
 661                         $datarray['conversation-href'] = $r['conversation-href'];
 662                 }
 663         }
 664
 665         if ($orig_post) {
 666                 $datarray['edit'] = true;
 667         }
 668
 669         // Search for hashtags
 670         item_body_set_hashtags($datarray);
 671
 672         // preview mode - prepare the body for display and send it via json
 673         if ($preview) {
 674                 require_once 'include/conversation.php';
 675                 // We set the datarray ID to -1 because in preview mode the dataray
 676                 // doesn't have an ID.
 677                 $datarray["id"] = -1;
 678                 $o = conversation($a,[array_merge($contact_record,$datarray)],'search', false, true);
 679                 logger('preview: ' . $o);
 680                 echo json_encode(['preview' => $o]);
 681                 killme();
 682         }
 683
 684         Addon::callHooks('post_local',$datarray);
 685
 686         if (x($datarray, 'cancel')) {
 687                 logger('mod_item: post cancelled by addon.');
 688                 if ($return_path) {
 689                         goaway($return_path);
 690                 }
 691
 692                 $json = ['cancel' => 1];
 693                 if (x($_REQUEST, 'jsreload') && strlen($_REQUEST['jsreload'])) {
 694                         $json['reload'] = System::baseUrl() . '/' . $_REQUEST['jsreload'];
 695                 }
 696
 697                 echo json_encode($json);
 698                 killme();
 699         }
 700
 701         if ($orig_post) {
 702
 703                 // Fill the cache field
 704                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 705                 put_item_in_cache($datarray);
 706
 707                 $fields = [
 708                         'title' => $datarray['title'],
 709                         'body' => $datarray['body'],
 710                         'tag' => $datarray['tag'],
 711                         'attach' => $datarray['attach'],
 712                         'file' => $datarray['file'],
 713                         'rendered-html' => $datarray['rendered-html'],
 714                         'rendered-hash' => $datarray['rendered-hash'],
 715                         'edited' => datetime_convert(),
 716                         'changed' => datetime_convert()];
 717
 718                 Item::update($fields, ['id' => $post_id]);
 719
 720                 // update filetags in pconfig
 721                 file_tag_update_pconfig($uid,$categories_old,$categories_new,'category');
 722
 723                 if (x($_REQUEST, 'return') && strlen($return_path)) {
 724                         logger('return: ' . $return_path);
 725                         goaway($return_path);
 726                 }
 727                 killme();
 728         } else {
 729                 $post_id = 0;
 730         }
 731
 732         unset($datarray['edit']);
 733         unset($datarray['self']);
 734         unset($datarray['api_source']);
 735
 736         $post_id = item_store($datarray);
 737
 738         if (!$post_id) {
 739                 logger("Item wasn't stored.");
 740                 goaway($return_path);
 741         }
 742
 743         $datarray = dba::selectFirst('item', [], ['id' => $post_id]);
 744
 745         if (!DBM::is_result($datarray)) {
 746                 logger("Item with id ".$post_id." couldn't be fetched.");
 747                 goaway($return_path);
 748         }
 749
 750         // update filetags in pconfig
 751         file_tag_update_pconfig($uid, $categories_old, $categories_new, 'category');
 752
 753         // These notifications are sent if someone else is commenting other your wall
 754         if ($parent) {
 755                 if ($contact_record != $author) {
 756                         notification([
 757                                 'type'         => NOTIFY_COMMENT,
 758                                 'notify_flags' => $user['notify-flags'],
 759                                 'language'     => $user['language'],
 760                                 'to_name'      => $user['username'],
 761                                 'to_email'     => $user['email'],
 762                                 'uid'          => $user['uid'],
 763                                 'item'         => $datarray,
 764                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 765                                 'source_name'  => $datarray['author-name'],
 766                                 'source_link'  => $datarray['author-link'],
 767                                 'source_photo' => $datarray['author-avatar'],
 768                                 'verb'         => ACTIVITY_POST,
 769                                 'otype'        => 'item',
 770                                 'parent'       => $parent,
 771                                 'parent_uri'   => $parent_item['uri']
 772                         ]);
 773                 }
 774
 775                 // Store the comment signature information in case we need to relay to Diaspora
 776                 Diaspora::storeCommentSignature($datarray, $author, ($self ? $user['prvkey'] : false), $post_id);
 777         } else {
 778                 if (($contact_record != $author) && !count($forum_contact)) {
 779                         notification([
 780                                 'type'         => NOTIFY_WALL,
 781                                 'notify_flags' => $user['notify-flags'],
 782                                 'language'     => $user['language'],
 783                                 'to_name'      => $user['username'],
 784                                 'to_email'     => $user['email'],
 785                                 'uid'          => $user['uid'],
 786                                 'item'         => $datarray,
 787                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 788                                 'source_name'  => $datarray['author-name'],
 789                                 'source_link'  => $datarray['author-link'],
 790                                 'source_photo' => $datarray['author-avatar'],
 791                                 'verb'         => ACTIVITY_POST,
 792                                 'otype'        => 'item'
 793                         ]);
 794                 }
 795         }
 796
 797         Addon::callHooks('post_local_end', $datarray);
 798
 799         if (strlen($emailcc) && $profile_uid == local_user()) {
 800                 $erecips = explode(',', $emailcc);
 801                 if (count($erecips)) {
 802                         foreach ($erecips as $recip) {
 803                                 $addr = trim($recip);
 804                                 if (!strlen($addr)) {
 805                                         continue;
 806                                 }
 807                                 $disclaimer = '<hr />' . sprintf(t('This message was sent to you by %s, a member of the Friendica social network.'), $a->user['username'])
 808                                         . '<br />';
 809                                 $disclaimer .= sprintf(t('You may visit them online at %s'), System::baseUrl() . '/profile/' . $a->user['nickname']) . EOL;
 810                                 $disclaimer .= t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 811                                 if (!$datarray['title']=='') {
 812                                         $subject = Email::encodeHeader($datarray['title'], 'UTF-8');
 813                                 } else {
 814                                         $subject = Email::encodeHeader('[Friendica]' . ' ' . sprintf(t('%s posted an update.'), $a->user['username']), 'UTF-8');
 815                                 }
 816                                 $link = '<a href="' . System::baseUrl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 817                                 $html    = prepare_body($datarray);
 818                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 819                                 include_once 'include/html2plain.php';
 820                                 $params =  [
 821                                         'fromName' => $a->user['username'],
 822                                         'fromEmail' => $a->user['email'],
 823                                         'toEmail' => $addr,
 824                                         'replyTo' => $a->user['email'],
 825                                         'messageSubject' => $subject,
 826                                         'htmlVersion' => $message,
 827                                         'textVersion' => html2plain($html.$disclaimer)
 828                                 ];
 829                                 Emailer::send($params);
 830                         }
 831                 }
 832         }
 833
 834         // Insert an item entry for UID=0 for global entries.
 835         // We now do it in the background to save some time.
 836         // This is important in interactive environments like the frontend or the API.
 837         // We don't fork a new process since this is done anyway with the following command
 838         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 839
 840         // Call the background process that is delivering the item to the receivers
 841         Worker::add(PRIORITY_HIGH, "Notifier", $notify_type, $post_id);
 842
 843         logger('post_complete');
 844
 845         item_post_return(System::baseUrl(), $api_source, $return_path);
 846         // NOTREACHED
 847 }
 848
 849 function item_post_return($baseurl, $api_source, $return_path) {
 850         // figure out how to return, depending on from whence we came
 851
 852         if ($api_source) {
 853                 return;
 854         }
 855
 856         if ($return_path) {
 857                 goaway($return_path);
 858         }
 859
 860         $json = ['success' => 1];
 861         if (x($_REQUEST, 'jsreload') && strlen($_REQUEST['jsreload'])) {
 862                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 863         }
 864
 865         logger('post_json: ' . print_r($json,true), LOGGER_DEBUG);
 866
 867         echo json_encode($json);
 868         killme();
 869 }
 870
 871
 872
 873 function item_content(App $a) {
 874
 875         if (!local_user() && !remote_user()) {
 876                 return;
 877         }
 878
 879         require_once 'include/security.php';
 880
 881         $o = '';
 882         if (($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 883                 if (is_ajax()) {
 884                         $o = Item::delete($a->argv[2]);
 885                 } else {
 886                         $o = drop_item($a->argv[2]);
 887                 }
 888                 if (is_ajax()) {
 889                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 890                         echo json_encode([intval($a->argv[2]), intval($o)]);
 891                         killme();
 892                 }
 893         }
 894         return $o;
 895 }
 896
 897 /**
 898  * This function removes the tag $tag from the text $body and replaces it with
 899  * the appropiate link.
 900  *
 901  * @param App $a Application instance @TODO is unused in this function's scope (excluding included files)
 902  * @param unknown_type $body the text to replace the tag in
 903  * @param string $inform a comma-seperated string containing everybody to inform
 904  * @param string $str_tags string to add the tag to
 905  * @param integer $profile_uid
 906  * @param string $tag the tag to replace
 907  * @param string $network The network of the post
 908  *
 909  * @return boolean true if replaced, false if not replaced
 910  */
 911 function handle_tag(App $a, &$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 912 {
 913         $replaced = false;
 914         $r = null;
 915         $tag_type = '@';
 916
 917         //is it a person tag?
 918         if ((strpos($tag, '@') === 0) || (strpos($tag, '!') === 0)) {
 919                 $tag_type = substr($tag, 0, 1);
 920                 //is it already replaced?
 921                 if (strpos($tag, '[url=')) {
 922                         //append tag to str_tags
 923                         if (!stristr($str_tags, $tag)) {
 924                                 if (strlen($str_tags)) {
 925                                         $str_tags .= ',';
 926                                 }
 927                                 $str_tags .= $tag;
 928                         }
 929
 930                         // Checking for the alias that is used for OStatus
 931                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 932                         if (preg_match($pattern, $tag, $matches)) {
 933
 934                                 $r = q("SELECT `alias`, `name` FROM `contact` WHERE `nurl` = '%s' AND `alias` != '' AND `uid` = 0",
 935                                         normalise_link($matches[1]));
 936                                 if (!DBM::is_result($r)) {
 937                                         $r = q("SELECT `alias`, `name` FROM `gcontact` WHERE `nurl` = '%s' AND `alias` != ''",
 938                                                 normalise_link($matches[1]));
 939                                 }
 940                                 if (DBM::is_result($r)) {
 941                                         $data = $r[0];
 942                                 } else {
 943                                         $data = Probe::uri($matches[1]);
 944                                 }
 945
 946                                 if ($data["alias"] != "") {
 947                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["name"] . '[/url]';
 948                                         if (!stristr($str_tags, $newtag)) {
 949                                                 if (strlen($str_tags)) {
 950                                                         $str_tags .= ',';
 951                                                 }
 952                                                 $str_tags .= $newtag;
 953                                         }
 954                                 }
 955                         }
 956
 957                         return $replaced;
 958                 }
 959                 $stat = false;
 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, '@')) || (strpos($name, 'http://'))) {
 970                         // Is it in format @user@domain.tld or @http://domain.tld/...?
 971
 972                         // First check the contact table for the address
 973                         $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network`, `notify`, `forum`, `prv` FROM `contact`
 974                                 WHERE `addr` = '%s' AND `uid` = %d AND
 975                                         (`network` != '%s' OR (`notify` != '' AND `alias` != ''))
 976                                 LIMIT 1",
 977                                         dbesc($name),
 978                                         intval($profile_uid),
 979                                         dbesc(NETWORK_OSTATUS)
 980                         );
 981
 982                         // Then check in the contact table for the url
 983                         if (!DBM::is_result($r)) {
 984                                 $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network`, `notify`, `forum`, `prv` FROM `contact`
 985                                         WHERE `nurl` = '%s' AND `uid` = %d AND
 986                                                 (`network` != '%s' OR (`notify` != '' AND `alias` != ''))
 987                                         LIMIT 1",
 988                                                 dbesc(normalise_link($name)),
 989                                                 intval($profile_uid),
 990                                                 dbesc(NETWORK_OSTATUS)
 991                                 );
 992                         }
 993
 994                         // Then check in the global contacts for the address
 995                         if (!DBM::is_result($r)) {
 996                                 $r = q("SELECT `url`, `nick`, `name`, `alias`, `network`, `notify` FROM `gcontact`
 997                                         WHERE `addr` = '%s' AND (`network` != '%s' OR (`notify` != '' AND `alias` != ''))
 998                                         LIMIT 1",
 999                                                 dbesc($name),
1000                                                 dbesc(NETWORK_OSTATUS)
1001                                 );
1002                         }
1003
1004                         // Then check in the global contacts for the url
1005                         if (!DBM::is_result($r)) {
1006                                 $r = q("SELECT `url`, `nick`, `name`, `alias`, `network`, `notify` FROM `gcontact`
1007                                         WHERE `nurl` = '%s' AND (`network` != '%s' OR (`notify` != '' AND `alias` != ''))
1008                                         LIMIT 1",
1009                                                 dbesc(normalise_link($name)),
1010                                                 dbesc(NETWORK_OSTATUS)
1011                                 );
1012                         }
1013
1014                         if (!DBM::is_result($r)) {
1015                                 $probed = Probe::uri($name);
1016                                 if ($result['network'] != NETWORK_PHANTOM) {
1017                                         GContact::update($probed);
1018                                         $r = q("SELECT `url`, `name`, `nick`, `network`, `alias`, `notify` FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1019                                                 dbesc(normalise_link($probed["url"])));
1020                                 }
1021                         }
1022                 } else {
1023                         $r = false;
1024                         if (strrpos($name, '+')) {
1025                                 // Is it in format @nick+number?
1026                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
1027
1028                                 $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network` FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1029                                                 intval($tagcid),
1030                                                 intval($profile_uid)
1031                                 );
1032                         }
1033
1034                         // select someone by attag or nick and the name passed in the current network
1035                         if (!DBM::is_result($r) && ($network != ""))
1036                                 $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network` FROM `contact` WHERE `attag` = '%s' OR `nick` = '%s' AND `network` = '%s' AND `uid` = %d ORDER BY `attag` DESC LIMIT 1",
1037                                                 dbesc($name),
1038                                                 dbesc($name),
1039                                                 dbesc($network),
1040                                                 intval($profile_uid)
1041                                 );
1042
1043                         //select someone from this user's contacts by name in the current network
1044                         if (!DBM::is_result($r) && ($network != "")) {
1045                                 $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network` FROM `contact` WHERE `name` = '%s' AND `network` = '%s' AND `uid` = %d LIMIT 1",
1046                                                 dbesc($name),
1047                                                 dbesc($network),
1048                                                 intval($profile_uid)
1049                                 );
1050                         }
1051
1052                         // select someone by attag or nick and the name passed in
1053                         if (!DBM::is_result($r)) {
1054                                 $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network` FROM `contact` WHERE `attag` = '%s' OR `nick` = '%s' AND `uid` = %d ORDER BY `attag` DESC LIMIT 1",
1055                                                 dbesc($name),
1056                                                 dbesc($name),
1057                                                 intval($profile_uid)
1058                                 );
1059                         }
1060
1061                         // select someone from this user's contacts by name
1062                         if (!DBM::is_result($r)) {
1063                                 $r = q("SELECT `id`, `url`, `nick`, `name`, `alias`, `network` FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
1064                                                 dbesc($name),
1065                                                 intval($profile_uid)
1066                                 );
1067                         }
1068                 }
1069
1070                 if (DBM::is_result($r)) {
1071                         if (strlen($inform) && (isset($r[0]["notify"]) || isset($r[0]["id"]))) {
1072                                 $inform .= ',';
1073                         }
1074
1075                         if (isset($r[0]["id"])) {
1076                                 $inform .= 'cid:' . $r[0]["id"];
1077                         } elseif (isset($r[0]["notify"])) {
1078                                 $inform  .= $r[0]["notify"];
1079                         }
1080
1081                         $profile = $r[0]["url"];
1082                         $alias   = $r[0]["alias"];
1083                         $newname = $r[0]["nick"];
1084                         if (($newname == "") || (($r[0]["network"] != NETWORK_OSTATUS) && ($r[0]["network"] != NETWORK_TWITTER)
1085                                 && ($r[0]["network"] != NETWORK_STATUSNET) && ($r[0]["network"] != NETWORK_APPNET))) {
1086                                 $newname = $r[0]["name"];
1087                         }
1088                 }
1089
1090                 //if there is an url for this persons profile
1091                 if (isset($profile) && ($newname != "")) {
1092                         $replaced = true;
1093                         // create profile link
1094                         $profile = str_replace(',', '%2c', $profile);
1095                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1096                         $body = str_replace($tag_type . $name, $newtag, $body);
1097                         // append tag to str_tags
1098                         if (!stristr($str_tags, $newtag)) {
1099                                 if (strlen($str_tags)) {
1100                                         $str_tags .= ',';
1101                                 }
1102                                 $str_tags .= $newtag;
1103                         }
1104
1105                         /*
1106                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1107                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1108                          */
1109                         if (strlen($alias)) {
1110                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1111                                 if (!stristr($str_tags, $newtag)) {
1112                                         if (strlen($str_tags)) {
1113                                                 $str_tags .= ',';
1114                                         }
1115                                         $str_tags .= $newtag;
1116                                 }
1117                         }
1118                 }
1119         }
1120
1121         return ['replaced' => $replaced, 'contact' => $r[0]];
1122 }