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\Contact;
  31 use Friendica\Model\Conversation;
  32 use Friendica\Model\FileTag;
  33 use Friendica\Model\Item;
  34 use Friendica\Model\Photo;
  35 use Friendica\Model\Attach;
  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
  44 require_once 'include/items.php';
  45
  46 function item_post(App $a) {
  47         if (!local_user() && !remote_user()) {
  48                 return 0;
  49         }
  50
  51         $uid = local_user();
  52
  53         if (!empty($_REQUEST['dropitems'])) {
  54                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  55                 drop_items($arr_drop);
  56                 $json = ['success' => 1];
  57                 echo json_encode($json);
  58                 exit();
  59         }
  60
  61         Hook::callAll('post_local_start', $_REQUEST);
  62
  63         Logger::log('postvars ' . print_r($_REQUEST, true), Logger::DATA);
  64
  65         $api_source = defaults($_REQUEST, 'api_source', false);
  66
  67         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  68
  69         $return_path = defaults($_REQUEST, 'return', '');
  70         $preview = intval(defaults($_REQUEST, 'preview', 0));
  71
  72         /*
  73          * Check for doubly-submitted posts, and reject duplicates
  74          * Note that we have to ignore previews, otherwise nothing will post
  75          * after it's been previewed
  76          */
  77         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  78                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  79                         Logger::log("item post: duplicate post", Logger::DEBUG);
  80                         item_post_return(System::baseUrl(), $api_source, $return_path);
  81                 } else {
  82                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  83                 }
  84         }
  85
  86         // Is this a reply to something?
  87         $toplevel_item_id = intval(defaults($_REQUEST, 'parent', 0));
  88         $thr_parent_uri = trim(defaults($_REQUEST, 'parent_uri', ''));
  89
  90         $thread_parent_id = 0;
  91         $thread_parent_contact = null;
  92
  93         $toplevel_item = null;
  94         $parent_user = null;
  95
  96         $parent_contact = null;
  97
  98         $objecttype = null;
  99         $profile_uid = defaults($_REQUEST, 'profile_uid', local_user());
 100         $posttype = defaults($_REQUEST, 'post_type', Item::PT_ARTICLE);
 101
 102         if ($toplevel_item_id || $thr_parent_uri) {
 103                 if ($toplevel_item_id) {
 104                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 105                 } elseif ($thr_parent_uri) {
 106                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 107                 }
 108
 109                 // if this isn't the top-level parent of the conversation, find it
 110                 if (DBA::isResult($toplevel_item)) {
 111                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 112                         $thread_parent_id = $toplevel_item['id'];
 113                         $thr_parent_uri = $toplevel_item['uri'];
 114                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 115
 116                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 117                                 $toplevel_item = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 118                         }
 119                 }
 120
 121                 if (!DBA::isResult($toplevel_item)) {
 122                         notice(L10n::t('Unable to locate original post.') . EOL);
 123                         if (!empty($_REQUEST['return'])) {
 124                                 $a->internalRedirect($return_path);
 125                         }
 126                         exit();
 127                 }
 128
 129                 $toplevel_item_id = $toplevel_item['id'];
 130                 $parent_user = $toplevel_item['uid'];
 131
 132                 $objecttype = ACTIVITY_OBJ_COMMENT;
 133         }
 134
 135         if ($toplevel_item_id) {
 136                 Logger::info('mod_item: item_post parent=' . $toplevel_item_id);
 137         }
 138
 139         $post_id     = intval(defaults($_REQUEST, 'post_id', 0));
 140         $app         = strip_tags(defaults($_REQUEST, 'source', ''));
 141         $extid       = strip_tags(defaults($_REQUEST, 'extid', ''));
 142         $object      = defaults($_REQUEST, 'object', '');
 143
 144         // Don't use "defaults" here. It would turn 0 to 1
 145         if (!isset($_REQUEST['wall'])) {
 146                 $wall = 1;
 147         } else {
 148                 $wall = $_REQUEST['wall'];
 149         }
 150
 151         // Ensure that the user id in a thread always stay the same
 152         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 153                 $profile_uid = $parent_user;
 154         }
 155
 156         // Check for multiple posts with the same message id (when the post was created via API)
 157         if (($message_id != '') && ($profile_uid != 0)) {
 158                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 159                         Logger::log("Message with URI ".$message_id." already exists for user ".$profile_uid, Logger::DEBUG);
 160                         return 0;
 161                 }
 162         }
 163
 164         // Allow commenting if it is an answer to a public post
 165         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], [Protocol::ACTIVITYPUB, Protocol::OSTATUS, Protocol::DIASPORA, Protocol::DFRN]);
 166
 167         // Now check that valid personal details have been provided
 168         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 169                 notice(L10n::t('Permission denied.') . EOL);
 170
 171                 if (!empty($_REQUEST['return'])) {
 172                         $a->internalRedirect($return_path);
 173                 }
 174
 175                 exit();
 176         }
 177
 178         // Init post instance
 179         $orig_post = null;
 180
 181         // is this an edited post?
 182         if ($post_id > 0) {
 183                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 184         }
 185
 186         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 187
 188         if (!DBA::isResult($user) && !$toplevel_item_id) {
 189                 return 0;
 190         }
 191
 192         $categories = '';
 193         $postopts = '';
 194         $emailcc = '';
 195         $body = defaults($_REQUEST, 'body', '');
 196         $has_attachment = defaults($_REQUEST, 'has_attachment', 0);
 197
 198         // If we have a speparate attachment, we need to add it to the body.
 199         if (!empty($has_attachment)) {
 200                 $attachment_type  = defaults($_REQUEST, 'attachment_type',  '');
 201                 $attachment_title = defaults($_REQUEST, 'attachment_title', '');
 202                 $attachment_text  = defaults($_REQUEST, 'attachment_text',  '');
 203
 204                 $attachment_url     = hex2bin(defaults($_REQUEST, 'attachment_url',     ''));
 205                 $attachment_img_src = hex2bin(defaults($_REQUEST, 'attachment_img_src', ''));
 206
 207                 $attachment_img_width  = defaults($_REQUEST, 'attachment_img_width',  0);
 208                 $attachment_img_height = defaults($_REQUEST, 'attachment_img_height', 0);
 209                 $attachment = [
 210                         'type'   => $attachment_type,
 211                         'title'  => $attachment_title,
 212                         'text'   => $attachment_text,
 213                         'url'    => $attachment_url,
 214                 ];
 215
 216                 if (!empty($attachment_img_src)) {
 217                         $attachment['images'] = [
 218                                 0 => [
 219                                         'src'    => $attachment_img_src,
 220                                         'width'  => $attachment_img_width,
 221                                         'height' => $attachment_img_height
 222                                 ]
 223                         ];
 224                 }
 225
 226                 $att_bbcode = add_page_info_data($attachment);
 227                 $body .= $att_bbcode;
 228         }
 229
 230         if (!empty($orig_post)) {
 231                 $str_group_allow   = $orig_post['allow_gid'];
 232                 $str_contact_allow = $orig_post['allow_cid'];
 233                 $str_group_deny    = $orig_post['deny_gid'];
 234                 $str_contact_deny  = $orig_post['deny_cid'];
 235                 $location          = $orig_post['location'];
 236                 $coord             = $orig_post['coord'];
 237                 $verb              = $orig_post['verb'];
 238                 $objecttype        = $orig_post['object-type'];
 239                 $app               = $orig_post['app'];
 240                 $categories        = $orig_post['file'];
 241                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 242                 $body              = Strings::escapeHtml(trim($body));
 243                 $private           = $orig_post['private'];
 244                 $pubmail_enabled   = $orig_post['pubmail'];
 245                 $network           = $orig_post['network'];
 246                 $guid              = $orig_post['guid'];
 247                 $extid             = $orig_post['extid'];
 248
 249         } else {
 250
 251                 /*
 252                  * if coming from the API and no privacy settings are set,
 253                  * use the user default permissions - as they won't have
 254                  * been supplied via a form.
 255                  */
 256                 if ($api_source
 257                         && !array_key_exists('contact_allow', $_REQUEST)
 258                         && !array_key_exists('group_allow', $_REQUEST)
 259                         && !array_key_exists('contact_deny', $_REQUEST)
 260                         && !array_key_exists('group_deny', $_REQUEST)) {
 261                         $str_group_allow   = $user['allow_gid'];
 262                         $str_contact_allow = $user['allow_cid'];
 263                         $str_group_deny    = $user['deny_gid'];
 264                         $str_contact_deny  = $user['deny_cid'];
 265                 } else {
 266                         // use the posted permissions
 267                         $str_group_allow   = perms2str(defaults($_REQUEST, 'group_allow', ''));
 268                         $str_contact_allow = perms2str(defaults($_REQUEST, 'contact_allow', ''));
 269                         $str_group_deny    = perms2str(defaults($_REQUEST, 'group_deny', ''));
 270                         $str_contact_deny  = perms2str(defaults($_REQUEST, 'contact_deny', ''));
 271                 }
 272
 273                 $title             = Strings::escapeTags(trim(defaults($_REQUEST, 'title'   , '')));
 274                 $location          = Strings::escapeTags(trim(defaults($_REQUEST, 'location', '')));
 275                 $coord             = Strings::escapeTags(trim(defaults($_REQUEST, 'coord'   , '')));
 276                 $verb              = Strings::escapeTags(trim(defaults($_REQUEST, 'verb'    , '')));
 277                 $emailcc           = Strings::escapeTags(trim(defaults($_REQUEST, 'emailcc' , '')));
 278                 $body              = Strings::escapeHtml(trim($body));
 279                 $network           = Strings::escapeTags(trim(defaults($_REQUEST, 'network' , Protocol::DFRN)));
 280                 $guid              = System::createUUID();
 281
 282                 $postopts = defaults($_REQUEST, 'postopts', '');
 283
 284                 $private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
 285
 286                 if ($user['hidewall']) {
 287                         $private = 2;
 288                 }
 289
 290                 // If this is a comment, set the permissions from the parent.
 291
 292                 if ($toplevel_item) {
 293                         // for non native networks use the network of the original post as network of the item
 294                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 295                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 296                                 && ($network == "")) {
 297                                 $network = $toplevel_item['network'];
 298                         }
 299
 300                         $str_contact_allow = $toplevel_item['allow_cid'];
 301                         $str_group_allow   = $toplevel_item['allow_gid'];
 302                         $str_contact_deny  = $toplevel_item['deny_cid'];
 303                         $str_group_deny    = $toplevel_item['deny_gid'];
 304                         $private           = $toplevel_item['private'];
 305
 306                         $wall              = $toplevel_item['wall'];
 307                 }
 308
 309                 $pubmail_enabled = defaults($_REQUEST, 'pubmail_enable', false) && !$private;
 310
 311                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 312                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 313                         if (function_exists('imap_open') && !Config::get('system', 'imap_disabled')) {
 314                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 315                         }
 316                 }
 317
 318                 if (!strlen($body)) {
 319                         if ($preview) {
 320                                 exit();
 321                         }
 322                         info(L10n::t('Empty post discarded.') . EOL);
 323                         if (!empty($_REQUEST['return'])) {
 324                                 $a->internalRedirect($return_path);
 325                         }
 326                         exit();
 327                 }
 328         }
 329
 330         if (!empty($categories))
 331         {
 332                 // get the "fileas" tags for this post
 333                 $filedas = FileTag::fileToList($categories, 'file');
 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))
 342         {
 343                 // append the fileas stuff to the new categories list
 344                 $categories .= FileTag::listToFile($filedas, 'file');
 345         }
 346
 347         // get contact info for poster
 348
 349         $author = null;
 350         $self   = false;
 351         $contact_id = 0;
 352
 353         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 354                 $self = true;
 355                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 356         } elseif (remote_user()) {
 357                 if (!empty($_SESSION['remote']) && is_array($_SESSION['remote'])) {
 358                         foreach ($_SESSION['remote'] as $v) {
 359                                 if ($v['uid'] == $profile_uid) {
 360                                         $contact_id = $v['cid'];
 361                                         break;
 362                                 }
 363                         }
 364                 }
 365                 if ($contact_id) {
 366                         $author = DBA::selectFirst('contact', [], ['id' => $contact_id]);
 367                 }
 368         }
 369
 370         if (DBA::isResult($author)) {
 371                 $contact_id = $author['id'];
 372         }
 373
 374         // get contact info for owner
 375         if ($profile_uid == local_user() || $allow_comment) {
 376                 $contact_record = $author;
 377         } else {
 378                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 379         }
 380
 381         // Look for any tags and linkify them
 382         $str_tags = '';
 383         $inform   = '';
 384
 385         $tags = BBCode::getTags($body);
 386
 387         if ($thread_parent_id && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 388                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_id);
 389         }
 390
 391         $tagged = [];
 392
 393         $private_forum = false;
 394         $only_to_forum = false;
 395         $forum_contact = [];
 396
 397         if (count($tags)) {
 398                 foreach ($tags as $tag) {
 399                         $tag_type = substr($tag, 0, 1);
 400
 401                         if ($tag_type == Term::TAG_CHARACTER[Term::HASHTAG]) {
 402                                 continue;
 403                         }
 404
 405                         /*
 406                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 407                          * Robert Johnson should be first in the $tags array
 408                          */
 409                         $fullnametagged = false;
 410                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 411                         foreach ($tagged as $nextTag) {
 412                                 if (stristr($nextTag, $tag . ' ')) {
 413                                         $fullnametagged = true;
 414                                         break;
 415                                 }
 416                         }
 417                         if ($fullnametagged) {
 418                                 continue;
 419                         }
 420
 421                         $success = handle_tag($body, $inform, $str_tags, local_user() ? local_user() : $profile_uid, $tag, $network);
 422                         if ($success['replaced']) {
 423                                 $tagged[] = $tag;
 424                         }
 425                         // When the forum is private or the forum is addressed with a "!" make the post private
 426                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]))) {
 427                                 $private_forum = $success['contact']['prv'];
 428                                 $only_to_forum = ($tag_type == Term::TAG_CHARACTER[Term::EXCLUSIVE_MENTION]);
 429                                 $private_id = $success['contact']['id'];
 430                                 $forum_contact = $success['contact'];
 431                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 432                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 433                                 $private_forum = false;
 434                                 $only_to_forum = true;
 435                                 $private_id = $success['contact']['id'];
 436                                 $forum_contact = $success['contact'];
 437                         }
 438                 }
 439         }
 440
 441         $original_contact_id = $contact_id;
 442
 443         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 444                 // we tagged a forum in a top level post. Now we change the post
 445                 $private = $private_forum;
 446
 447                 $str_group_allow = '';
 448                 $str_contact_deny = '';
 449                 $str_group_deny = '';
 450                 if ($private_forum) {
 451                         $str_contact_allow = '<' . $private_id . '>';
 452                 } else {
 453                         $str_contact_allow = '';
 454                 }
 455                 $contact_id = $private_id;
 456                 $contact_record = $forum_contact;
 457                 $_REQUEST['origin'] = false;
 458                 $wall = 0;
 459         }
 460
 461         /*
 462          * When a photo was uploaded into the message using the (profile wall) ajax
 463          * uploader, The permissions are initially set to disallow anybody but the
 464          * owner from seeing it. This is because the permissions may not yet have been
 465          * set for the post. If it's private, the photo permissions should be set
 466          * appropriately. But we didn't know the final permissions on the post until
 467          * now. So now we'll look for links of uploaded messages that are in the
 468          * post and set them to the same permissions as the post itself.
 469          */
 470
 471         $match = null;
 472
 473         /// @todo these lines should be moved to Model/Photo
 474         if (!$preview && preg_match_all("/\[img([\=0-9x]*?)\](.*?)\[\/img\]/",$body,$match)) {
 475                 $images = $match[2];
 476                 if (count($images)) {
 477
 478                         $objecttype = ACTIVITY_OBJ_IMAGE;
 479
 480                         foreach ($images as $image) {
 481                                 if (!stristr($image, System::baseUrl() . '/photo/')) {
 482                                         continue;
 483                                 }
 484                                 $image_uri = substr($image,strrpos($image,'/') + 1);
 485                                 $image_uri = substr($image_uri,0, strpos($image_uri,'-'));
 486                                 if (!strlen($image_uri)) {
 487                                         continue;
 488                                 }
 489
 490                                 // Ensure to only modify photos that you own
 491                                 $srch = '<' . intval($original_contact_id) . '>';
 492
 493                                 $condition = [
 494                                         'allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 495                                         'resource-id' => $image_uri, 'uid' => $profile_uid
 496                                 ];
 497                                 if (!Photo::exists($condition)) {
 498                                         continue;
 499                                 }
 500
 501                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 502                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 503                                 $condition = ['resource-id' => $image_uri, 'uid' => $profile_uid];
 504                                 Photo::update($fields, $condition);
 505                         }
 506                 }
 507         }
 508
 509
 510         /*
 511          * Next link in any attachment references we find in the post.
 512          */
 513         $match = false;
 514
 515         /// @todo these lines should be moved to Model/Attach (Once it exists)
 516         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 517                 $attaches = $match[1];
 518                 if (count($attaches)) {
 519                         foreach ($attaches as $attach) {
 520                                 // Ensure to only modify attachments that you own
 521                                 $srch = '<' . intval($original_contact_id) . '>';
 522
 523                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 524                                                 'id' => $attach];
 525                                 if (!Attach::exists($condition)) {
 526                                         continue;
 527                                 }
 528
 529                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 530                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 531                                 $condition = ['id' => $attach];
 532                                 Attach::update($fields, $condition);
 533                         }
 534                 }
 535         }
 536
 537         // embedded bookmark or attachment in post? set bookmark flag
 538
 539         $data = BBCode::getAttachmentData($body);
 540         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 541                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 542                 $posttype = Item::PT_PAGE;
 543                 $objecttype = ACTIVITY_OBJ_BOOKMARK;
 544         }
 545
 546         $body = bb_translate_video($body);
 547
 548
 549         // Fold multi-line [code] sequences
 550         $body = preg_replace('/\[\/code\]\s*\[code\]/ism', "\n", $body);
 551
 552         $body = BBCode::scaleExternalImages($body, false);
 553
 554         // Setting the object type if not defined before
 555         if (!$objecttype) {
 556                 $objecttype = ACTIVITY_OBJ_NOTE; // Default value
 557                 $objectdata = BBCode::getAttachedData($body);
 558
 559                 if ($objectdata["type"] == "link") {
 560                         $objecttype = ACTIVITY_OBJ_BOOKMARK;
 561                 } elseif ($objectdata["type"] == "video") {
 562                         $objecttype = ACTIVITY_OBJ_VIDEO;
 563                 } elseif ($objectdata["type"] == "photo") {
 564                         $objecttype = ACTIVITY_OBJ_IMAGE;
 565                 }
 566
 567         }
 568
 569         $attachments = '';
 570         $match = false;
 571
 572         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 573                 foreach ($match[2] as $mtch) {
 574                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 575                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 576                         if ($attachment !== false) {
 577                                 if (strlen($attachments)) {
 578                                         $attachments .= ',';
 579                                 }
 580                                 $attachments .= '[attach]href="' . System::baseUrl() . '/attach/' . $attachment['id'] .
 581                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 582                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 583                         }
 584                         $body = str_replace($match[1],'',$body);
 585                 }
 586         }
 587
 588         if (!strlen($verb)) {
 589                 $verb = ACTIVITY_POST;
 590         }
 591
 592         if ($network == "") {
 593                 $network = Protocol::DFRN;
 594         }
 595
 596         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 597
 598         // even if the post arrived via API we are considering that it
 599         // originated on this site by default for determining relayability.
 600
 601         // Don't use "defaults" here. It would turn 0 to 1
 602         if (!isset($_REQUEST['origin'])) {
 603                 $origin = 1;
 604         } else {
 605                 $origin = $_REQUEST['origin'];
 606         }
 607
 608         $notify_type = ($toplevel_item_id ? 'comment-new' : 'wall-new');
 609
 610         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 611
 612         // Fallback so that we alway have a parent uri
 613         if (!$thr_parent_uri || !$toplevel_item_id) {
 614                 $thr_parent_uri = $uri;
 615         }
 616
 617         $datarray = [];
 618         $datarray['uid']           = $profile_uid;
 619         $datarray['wall']          = $wall;
 620         $datarray['gravity']       = $gravity;
 621         $datarray['network']       = $network;
 622         $datarray['contact-id']    = $contact_id;
 623         $datarray['owner-name']    = $contact_record['name'];
 624         $datarray['owner-link']    = $contact_record['url'];
 625         $datarray['owner-avatar']  = $contact_record['thumb'];
 626         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 627         $datarray['author-name']   = $author['name'];
 628         $datarray['author-link']   = $author['url'];
 629         $datarray['author-avatar'] = $author['thumb'];
 630         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 631         $datarray['created']       = DateTimeFormat::utcNow();
 632         $datarray['edited']        = DateTimeFormat::utcNow();
 633         $datarray['commented']     = DateTimeFormat::utcNow();
 634         $datarray['received']      = DateTimeFormat::utcNow();
 635         $datarray['changed']       = DateTimeFormat::utcNow();
 636         $datarray['extid']         = $extid;
 637         $datarray['guid']          = $guid;
 638         $datarray['uri']           = $uri;
 639         $datarray['title']         = $title;
 640         $datarray['body']          = $body;
 641         $datarray['app']           = $app;
 642         $datarray['location']      = $location;
 643         $datarray['coord']         = $coord;
 644         $datarray['tag']           = $str_tags;
 645         $datarray['file']          = $categories;
 646         $datarray['inform']        = $inform;
 647         $datarray['verb']          = $verb;
 648         $datarray['post-type']     = $posttype;
 649         $datarray['object-type']   = $objecttype;
 650         $datarray['allow_cid']     = $str_contact_allow;
 651         $datarray['allow_gid']     = $str_group_allow;
 652         $datarray['deny_cid']      = $str_contact_deny;
 653         $datarray['deny_gid']      = $str_group_deny;
 654         $datarray['private']       = $private;
 655         $datarray['pubmail']       = $pubmail_enabled;
 656         $datarray['attach']        = $attachments;
 657
 658         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 659         $datarray['parent-uri']    = $thr_parent_uri;
 660
 661         $datarray['postopts']      = $postopts;
 662         $datarray['origin']        = $origin;
 663         $datarray['moderated']     = false;
 664         $datarray['object']        = $object;
 665
 666         /*
 667          * These fields are for the convenience of addons...
 668          * 'self' if true indicates the owner is posting on their own wall
 669          * If parent is 0 it is a top-level post.
 670          */
 671         $datarray['parent']        = $toplevel_item_id;
 672         $datarray['self']          = $self;
 673
 674         // This triggers posts via API and the mirror functions
 675         $datarray['api_source'] = $api_source;
 676
 677         // This field is for storing the raw conversation data
 678         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 679
 680         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 681         if (DBA::isResult($conversation)) {
 682                 if ($conversation['conversation-uri'] != '') {
 683                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 684                 }
 685                 if ($conversation['conversation-href'] != '') {
 686                         $datarray['conversation-href'] = $conversation['conversation-href'];
 687                 }
 688         }
 689
 690         if ($orig_post) {
 691                 $datarray['edit'] = true;
 692         } else {
 693                 $datarray['edit'] = false;
 694         }
 695
 696         // Check for hashtags in the body and repair or add hashtag links
 697         if ($preview || $orig_post) {
 698                 Item::setHashtags($datarray);
 699         }
 700
 701         // preview mode - prepare the body for display and send it via json
 702         if ($preview) {
 703                 // We set the datarray ID to -1 because in preview mode the dataray
 704                 // doesn't have an ID.
 705                 $datarray["id"] = -1;
 706                 $datarray["item_id"] = -1;
 707                 $datarray["author-network"] = Protocol::DFRN;
 708
 709                 $o = conversation($a, [array_merge($contact_record, $datarray)], new Pager($a->query_string), 'search', false, true);
 710                 Logger::log('preview: ' . $o);
 711                 echo json_encode(['preview' => $o]);
 712                 exit();
 713         }
 714
 715         Hook::callAll('post_local',$datarray);
 716
 717         if (!empty($datarray['cancel'])) {
 718                 Logger::log('mod_item: post cancelled by addon.');
 719                 if ($return_path) {
 720                         $a->internalRedirect($return_path);
 721                 }
 722
 723                 $json = ['cancel' => 1];
 724                 if (!empty($_REQUEST['jsreload'])) {
 725                         $json['reload'] = System::baseUrl() . '/' . $_REQUEST['jsreload'];
 726                 }
 727
 728                 echo json_encode($json);
 729                 exit();
 730         }
 731
 732         if ($orig_post) {
 733                 // Fill the cache field
 734                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 735                 Item::putInCache($datarray);
 736
 737                 $fields = [
 738                         'title' => $datarray['title'],
 739                         'body' => $datarray['body'],
 740                         'tag' => $datarray['tag'],
 741                         'attach' => $datarray['attach'],
 742                         'file' => $datarray['file'],
 743                         'rendered-html' => $datarray['rendered-html'],
 744                         'rendered-hash' => $datarray['rendered-hash'],
 745                         'edited' => DateTimeFormat::utcNow(),
 746                         'changed' => DateTimeFormat::utcNow()];
 747
 748                 Item::update($fields, ['id' => $post_id]);
 749
 750                 // update filetags in pconfig
 751                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 752
 753                 if (!empty($_REQUEST['return']) && strlen($return_path)) {
 754                         Logger::log('return: ' . $return_path);
 755                         $a->internalRedirect($return_path);
 756                 }
 757                 exit();
 758         }
 759
 760         unset($datarray['edit']);
 761         unset($datarray['self']);
 762         unset($datarray['api_source']);
 763
 764         if ($origin) {
 765                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 766                 if (!empty($signed)) {
 767                         $datarray['diaspora_signed_text'] = json_encode($signed);
 768                 }
 769         }
 770
 771         $post_id = Item::insert($datarray);
 772
 773         if (!$post_id) {
 774                 Logger::log("Item wasn't stored.");
 775                 $a->internalRedirect($return_path);
 776         }
 777
 778         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 779
 780         if (!DBA::isResult($datarray)) {
 781                 Logger::log("Item with id ".$post_id." couldn't be fetched.");
 782                 $a->internalRedirect($return_path);
 783         }
 784
 785         // update filetags in pconfig
 786         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 787
 788         // These notifications are sent if someone else is commenting other your wall
 789         if ($toplevel_item_id) {
 790                 if ($contact_record != $author) {
 791                         notification([
 792                                 'type'         => NOTIFY_COMMENT,
 793                                 'notify_flags' => $user['notify-flags'],
 794                                 'language'     => $user['language'],
 795                                 'to_name'      => $user['username'],
 796                                 'to_email'     => $user['email'],
 797                                 'uid'          => $user['uid'],
 798                                 'item'         => $datarray,
 799                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 800                                 'source_name'  => $datarray['author-name'],
 801                                 'source_link'  => $datarray['author-link'],
 802                                 'source_photo' => $datarray['author-avatar'],
 803                                 'verb'         => ACTIVITY_POST,
 804                                 'otype'        => 'item',
 805                                 'parent'       => $toplevel_item_id,
 806                                 'parent_uri'   => $toplevel_item['uri']
 807                         ]);
 808                 }
 809         } else {
 810                 if (($contact_record != $author) && !count($forum_contact)) {
 811                         notification([
 812                                 'type'         => NOTIFY_WALL,
 813                                 'notify_flags' => $user['notify-flags'],
 814                                 'language'     => $user['language'],
 815                                 'to_name'      => $user['username'],
 816                                 'to_email'     => $user['email'],
 817                                 'uid'          => $user['uid'],
 818                                 'item'         => $datarray,
 819                                 'link'         => System::baseUrl().'/display/'.urlencode($datarray['guid']),
 820                                 'source_name'  => $datarray['author-name'],
 821                                 'source_link'  => $datarray['author-link'],
 822                                 'source_photo' => $datarray['author-avatar'],
 823                                 'verb'         => ACTIVITY_POST,
 824                                 'otype'        => 'item'
 825                         ]);
 826                 }
 827         }
 828
 829         Hook::callAll('post_local_end', $datarray);
 830
 831         if (strlen($emailcc) && $profile_uid == local_user()) {
 832                 $erecips = explode(',', $emailcc);
 833                 if (count($erecips)) {
 834                         foreach ($erecips as $recip) {
 835                                 $addr = trim($recip);
 836                                 if (!strlen($addr)) {
 837                                         continue;
 838                                 }
 839                                 $disclaimer = '<hr />' . L10n::t('This message was sent to you by %s, a member of the Friendica social network.', $a->user['username'])
 840                                         . '<br />';
 841                                 $disclaimer .= L10n::t('You may visit them online at %s', System::baseUrl() . '/profile/' . $a->user['nickname']) . EOL;
 842                                 $disclaimer .= L10n::t('Please contact the sender by replying to this post if you do not wish to receive these messages.') . EOL;
 843                                 if (!$datarray['title']=='') {
 844                                         $subject = Email::encodeHeader($datarray['title'], 'UTF-8');
 845                                 } else {
 846                                         $subject = Email::encodeHeader('[Friendica]' . ' ' . L10n::t('%s posted an update.', $a->user['username']), 'UTF-8');
 847                                 }
 848                                 $link = '<a href="' . System::baseUrl() . '/profile/' . $a->user['nickname'] . '"><img src="' . $author['thumb'] . '" alt="' . $a->user['username'] . '" /></a><br /><br />';
 849                                 $html    = Item::prepareBody($datarray);
 850                                 $message = '<html><body>' . $link . $html . $disclaimer . '</body></html>';
 851                                 $params =  [
 852                                         'fromName' => $a->user['username'],
 853                                         'fromEmail' => $a->user['email'],
 854                                         'toEmail' => $addr,
 855                                         'replyTo' => $a->user['email'],
 856                                         'messageSubject' => $subject,
 857                                         'htmlVersion' => $message,
 858                                         'textVersion' => HTML::toPlaintext($html.$disclaimer)
 859                                 ];
 860                                 Emailer::send($params);
 861                         }
 862                 }
 863         }
 864
 865         // Insert an item entry for UID=0 for global entries.
 866         // We now do it in the background to save some time.
 867         // This is important in interactive environments like the frontend or the API.
 868         // We don't fork a new process since this is done anyway with the following command
 869         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 870
 871         // When we are doing some forum posting via ! we have to start the notifier manually.
 872         // These kind of posts don't initiate the notifier call in the item class.
 873         if ($only_to_forum) {
 874                 Worker::add(PRIORITY_HIGH, "Notifier", $notify_type, $post_id);
 875         }
 876
 877         Logger::log('post_complete');
 878
 879         if ($api_source) {
 880                 return $post_id;
 881         }
 882
 883         item_post_return(System::baseUrl(), $api_source, $return_path);
 884         // NOTREACHED
 885 }
 886
 887 function item_post_return($baseurl, $api_source, $return_path)
 888 {
 889         // figure out how to return, depending on from whence we came
 890     $a = \get_app();
 891
 892         if ($api_source) {
 893                 return;
 894         }
 895
 896         if ($return_path) {
 897                 $a->internalRedirect($return_path);
 898         }
 899
 900         $json = ['success' => 1];
 901         if (!empty($_REQUEST['jsreload'])) {
 902                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 903         }
 904
 905         Logger::log('post_json: ' . print_r($json, true), Logger::DEBUG);
 906
 907         echo json_encode($json);
 908         exit();
 909 }
 910
 911 function item_content(App $a)
 912 {
 913         if (!local_user() && !remote_user()) {
 914                 return;
 915         }
 916
 917         $o = '';
 918
 919         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 920                 if ($a->isAjax()) {
 921                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 922                 } else {
 923                         if (!empty($a->argv[3])) {
 924                                 $o = drop_item($a->argv[2], $a->argv[3]);
 925                         }
 926                         else {
 927                                 $o = drop_item($a->argv[2]);
 928                         }
 929                 }
 930
 931                 if ($a->isAjax()) {
 932                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 933                         echo json_encode([intval($a->argv[2]), intval($o)]);
 934                         exit();
 935                 }
 936         }
 937
 938         return $o;
 939 }
 940
 941 /**
 942  * This function removes the tag $tag from the text $body and replaces it with
 943  * the appropriate link.
 944  *
 945  * @param App     $a
 946  * @param string  $body     the text to replace the tag in
 947  * @param string  $inform   a comma-seperated string containing everybody to inform
 948  * @param string  $str_tags string to add the tag to
 949  * @param integer $profile_uid
 950  * @param string  $tag      the tag to replace
 951  * @param string  $network  The network of the post
 952  *
 953  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 954  * @throws ImagickException
 955  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 956  */
 957 function handle_tag(&$body, &$inform, &$str_tags, $profile_uid, $tag, $network = "")
 958 {
 959         $replaced = false;
 960         $r = null;
 961
 962         //is it a person tag?
 963         if (Term::isType($tag, Term::MENTION, Term::IMPLICIT_MENTION, Term::EXCLUSIVE_MENTION)) {
 964                 $tag_type = substr($tag, 0, 1);
 965                 //is it already replaced?
 966                 if (strpos($tag, '[url=')) {
 967                         //append tag to str_tags
 968                         if (!stristr($str_tags, $tag)) {
 969                                 if (strlen($str_tags)) {
 970                                         $str_tags .= ',';
 971                                 }
 972                                 $str_tags .= $tag;
 973                         }
 974
 975                         // Checking for the alias that is used for OStatus
 976                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 977                         if (preg_match($pattern, $tag, $matches)) {
 978                                 $data = Contact::getDetailsByURL($matches[1]);
 979
 980                                 if ($data["alias"] != "") {
 981                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 982
 983                                         if (!stripos($str_tags, '[url=' . $data["alias"] . ']')) {
 984                                                 if (strlen($str_tags)) {
 985                                                         $str_tags .= ',';
 986                                                 }
 987
 988                                                 $str_tags .= $newtag;
 989                                         }
 990                                 }
 991                         }
 992
 993                         return $replaced;
 994                 }
 995
 996                 //get the person's name
 997                 $name = substr($tag, 1);
 998
 999                 // Sometimes the tag detection doesn't seem to work right
1000                 // This is some workaround
1001                 $nameparts = explode(" ", $name);
1002                 $name = $nameparts[0];
1003
1004                 // Try to detect the contact in various ways
1005                 if (strpos($name, 'http://')) {
1006                         // At first we have to ensure that the contact exists
1007                         Contact::getIdForURL($name);
1008
1009                         // Now we should have something
1010                         $contact = Contact::getDetailsByURL($name);
1011                 } elseif (strpos($name, '@')) {
1012                         // This function automatically probes when no entry was found
1013                         $contact = Contact::getDetailsByAddr($name);
1014                 } else {
1015                         $contact = false;
1016                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
1017
1018                         if (strrpos($name, '+')) {
1019                                 // Is it in format @nick+number?
1020                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
1021                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
1022                         }
1023
1024                         // select someone by nick or attag in the current network
1025                         if (!DBA::isResult($contact) && ($network != "")) {
1026                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
1027                                                 $name, $name, $network, $profile_uid];
1028                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1029                         }
1030
1031                         //select someone by name in the current network
1032                         if (!DBA::isResult($contact) && ($network != "")) {
1033                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
1034                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1035                         }
1036
1037                         // select someone by nick or attag in any network
1038                         if (!DBA::isResult($contact)) {
1039                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
1040                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1041                         }
1042
1043                         // select someone by name in any network
1044                         if (!DBA::isResult($contact)) {
1045                                 $condition = ['name' => $name, 'uid' => $profile_uid];
1046                                 $contact = DBA::selectFirst('contact', $fields, $condition);
1047                         }
1048                 }
1049
1050                 // Check if $contact has been successfully loaded
1051                 if (DBA::isResult($contact)) {
1052                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
1053                                 $inform .= ',';
1054                         }
1055
1056                         if (isset($contact["id"])) {
1057                                 $inform .= 'cid:' . $contact["id"];
1058                         } elseif (isset($contact["notify"])) {
1059                                 $inform  .= $contact["notify"];
1060                         }
1061
1062                         $profile = $contact["url"];
1063                         $alias   = $contact["alias"];
1064                         $newname = defaults($contact, "name", $contact["nick"]);
1065                 }
1066
1067                 //if there is an url for this persons profile
1068                 if (isset($profile) && ($newname != "")) {
1069                         $replaced = true;
1070                         // create profile link
1071                         $profile = str_replace(',', '%2c', $profile);
1072                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
1073                         $body = str_replace($tag_type . $name, $newtag, $body);
1074                         // append tag to str_tags
1075                         if (!stristr($str_tags, $newtag)) {
1076                                 if (strlen($str_tags)) {
1077                                         $str_tags .= ',';
1078                                 }
1079                                 $str_tags .= $newtag;
1080                         }
1081
1082                         /*
1083                          * Status.Net seems to require the numeric ID URL in a mention if the person isn't
1084                          * subscribed to you. But the nickname URL is OK if they are. Grrr. We'll tag both.
1085                          */
1086                         if (!empty($alias)) {
1087                                 $newtag = '@[url=' . $alias . ']' . $newname . '[/url]';
1088                                 if (!stripos($str_tags, '[url=' . $alias . ']')) {
1089                                         if (strlen($str_tags)) {
1090                                                 $str_tags .= ',';
1091                                         }
1092                                         $str_tags .= $newtag;
1093                                 }
1094                         }
1095                 }
1096         }
1097
1098         return ['replaced' => $replaced, 'contact' => $contact];
1099 }
1100
1101 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_id)
1102 {
1103         if (Config::get('system', 'disable_implicit_mentions')) {
1104                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1105                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1106                         $contact = Term::TAG_CHARACTER[Term::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1107                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1108                                 $tags[] = $contact;
1109                         }
1110                 }
1111         } else {
1112                 $implicit_mentions = [
1113                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1114                 ];
1115
1116                 $parent_terms = Term::tagArrayFromItemId($thread_parent_id, [Term::MENTION, Term::IMPLICIT_MENTION]);
1117
1118                 foreach ($parent_terms as $parent_term) {
1119                         $implicit_mentions[$parent_term['url']] = $parent_term['term'];
1120                 }
1121
1122                 foreach ($implicit_mentions as $url => $label) {
1123                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1124                                 $tags[] = Term::TAG_CHARACTER[Term::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1125                         }
1126                 }
1127         }
1128
1129         return $tags;
1130 }