mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  * This is the POST destination for most all locally posted
  21  * text stuff. This function handles status, wall-to-wall status,
  22  * local comments, and remote coments that are posted on this site
  23  * (as opposed to being delivered in a feed).
  24  * Also processed here are posts and comments coming through the
  25  * statusnet/twitter API.
  26  *
  27  * All of these become an "item" which is our basic unit of
  28  * information.
  29  */
  30
  31 use Friendica\App;
  32 use Friendica\Content\Text\BBCode;
  33 use Friendica\Core\Hook;
  34 use Friendica\Core\Logger;
  35 use Friendica\Core\Protocol;
  36 use Friendica\Core\Session;
  37 use Friendica\Core\System;
  38 use Friendica\Core\Worker;
  39 use Friendica\Database\DBA;
  40 use Friendica\DI;
  41 use Friendica\Model\Attach;
  42 use Friendica\Model\Contact;
  43 use Friendica\Model\Conversation;
  44 use Friendica\Model\FileTag;
  45 use Friendica\Model\Item;
  46 use Friendica\Model\Notify\Type;
  47 use Friendica\Model\Photo;
  48 use Friendica\Model\Tag;
  49 use Friendica\Network\HTTPException;
  50 use Friendica\Object\EMail\ItemCCEMail;
  51 use Friendica\Protocol\Activity;
  52 use Friendica\Protocol\Diaspora;
  53 use Friendica\Util\DateTimeFormat;
  54 use Friendica\Util\Security;
  55 use Friendica\Util\Strings;
  56 use Friendica\Worker\Delivery;
  57
  58 require_once __DIR__ . '/../include/items.php';
  59
  60 function item_post(App $a) {
  61         if (!Session::isAuthenticated()) {
  62                 throw new HTTPException\ForbiddenException();
  63         }
  64
  65         $uid = local_user();
  66
  67         if (!empty($_REQUEST['dropitems'])) {
  68                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  69                 drop_items($arr_drop);
  70                 $json = ['success' => 1];
  71                 System::jsonExit($json);
  72         }
  73
  74         Hook::callAll('post_local_start', $_REQUEST);
  75
  76         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  77
  78         $api_source = $_REQUEST['api_source'] ?? false;
  79
  80         $message_id = ((!empty($_REQUEST['message_id']) && $api_source) ? strip_tags($_REQUEST['message_id']) : '');
  81
  82         $return_path = $_REQUEST['return'] ?? '';
  83         $preview = intval($_REQUEST['preview'] ?? 0);
  84
  85         /*
  86          * Check for doubly-submitted posts, and reject duplicates
  87          * Note that we have to ignore previews, otherwise nothing will post
  88          * after it's been previewed
  89          */
  90         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  91                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  92                         Logger::info('item post: duplicate post');
  93                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  94                 } else {
  95                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  96                 }
  97         }
  98
  99         // Is this a reply to something?
 100         $toplevel_item_id = intval($_REQUEST['parent'] ?? 0);
 101         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 102
 103         $thread_parent_uriid = 0;
 104         $thread_parent_contact = null;
 105
 106         $toplevel_item = null;
 107         $parent_user = null;
 108
 109         $parent_contact = null;
 110
 111         $objecttype = null;
 112         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 113         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 114
 115         if ($toplevel_item_id || $thr_parent_uri) {
 116                 if ($toplevel_item_id) {
 117                         $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item_id]);
 118                 } elseif ($thr_parent_uri) {
 119                         $toplevel_item = Item::selectFirst([], ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 120                 }
 121
 122                 // if this isn't the top-level parent of the conversation, find it
 123                 if (DBA::isResult($toplevel_item)) {
 124                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 125                         $thread_parent_uriid = $toplevel_item['uri-id'];
 126                         $thr_parent_uri = $toplevel_item['uri'];
 127                         $thread_parent_contact = Contact::getDetailsByURL($toplevel_item["author-link"]);
 128
 129                         if ($toplevel_item['id'] != $toplevel_item['parent']) {
 130                                 $toplevel_item = Item::selectFirst([], ['id' => $toplevel_item['parent']]);
 131                         }
 132                 }
 133
 134                 if (!DBA::isResult($toplevel_item)) {
 135                         notice(DI::l10n()->t('Unable to locate original post.'));
 136                         if ($return_path) {
 137                                 DI::baseUrl()->redirect($return_path);
 138                         }
 139                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 140                 }
 141
 142                 $toplevel_item_id = $toplevel_item['id'];
 143                 $parent_user = $toplevel_item['uid'];
 144
 145                 $objecttype = Activity\ObjectType::COMMENT;
 146         }
 147
 148         if ($toplevel_item_id) {
 149                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 150         }
 151
 152         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 153         $app         = strip_tags($_REQUEST['source'] ?? '');
 154         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 155         $object      = $_REQUEST['object'] ?? '';
 156
 157         // Don't use "defaults" here. It would turn 0 to 1
 158         if (!isset($_REQUEST['wall'])) {
 159                 $wall = 1;
 160         } else {
 161                 $wall = $_REQUEST['wall'];
 162         }
 163
 164         // Ensure that the user id in a thread always stay the same
 165         if (!is_null($parent_user) && in_array($parent_user, [local_user(), 0])) {
 166                 $profile_uid = $parent_user;
 167         }
 168
 169         // Check for multiple posts with the same message id (when the post was created via API)
 170         if (($message_id != '') && ($profile_uid != 0)) {
 171                 if (Item::exists(['uri' => $message_id, 'uid' => $profile_uid])) {
 172                         Logger::info('Message already exists for user', ['uri' => $message_id, 'uid' => $profile_uid]);
 173                         return 0;
 174                 }
 175         }
 176
 177         // Allow commenting if it is an answer to a public post
 178         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 179
 180         // Now check that valid personal details have been provided
 181         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 182                 notice(DI::l10n()->t('Permission denied.'));
 183                 if ($return_path) {
 184                         DI::baseUrl()->redirect($return_path);
 185                 }
 186
 187                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 188         }
 189
 190         // Init post instance
 191         $orig_post = null;
 192
 193         // is this an edited post?
 194         if ($post_id > 0) {
 195                 $orig_post = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 196         }
 197
 198         $user = DBA::selectFirst('user', [], ['uid' => $profile_uid]);
 199
 200         if (!DBA::isResult($user) && !$toplevel_item_id) {
 201                 return 0;
 202         }
 203
 204         $categories = '';
 205         $postopts = '';
 206         $emailcc = '';
 207         $body = $_REQUEST['body'] ?? '';
 208         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 209
 210         // If we have a speparate attachment, we need to add it to the body.
 211         if (!empty($has_attachment)) {
 212                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 213                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 214                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 215
 216                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 217                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 218
 219                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 220                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 221                 $attachment = [
 222                         'type'   => $attachment_type,
 223                         'title'  => $attachment_title,
 224                         'text'   => $attachment_text,
 225                         'url'    => $attachment_url,
 226                 ];
 227
 228                 if (!empty($attachment_img_src)) {
 229                         $attachment['images'] = [
 230                                 0 => [
 231                                         'src'    => $attachment_img_src,
 232                                         'width'  => $attachment_img_width,
 233                                         'height' => $attachment_img_height
 234                                 ]
 235                         ];
 236                 }
 237
 238                 $att_bbcode = add_page_info_data($attachment);
 239                 $body .= $att_bbcode;
 240         }
 241
 242         // Convert links with empty descriptions to links without an explicit description
 243         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 244
 245         if (!empty($orig_post)) {
 246                 $str_group_allow   = $orig_post['allow_gid'];
 247                 $str_contact_allow = $orig_post['allow_cid'];
 248                 $str_group_deny    = $orig_post['deny_gid'];
 249                 $str_contact_deny  = $orig_post['deny_cid'];
 250                 $location          = $orig_post['location'];
 251                 $coord             = $orig_post['coord'];
 252                 $verb              = $orig_post['verb'];
 253                 $objecttype        = $orig_post['object-type'];
 254                 $app               = $orig_post['app'];
 255                 $categories        = $orig_post['file'];
 256                 $title             = Strings::escapeTags(trim($_REQUEST['title']));
 257                 $body              = trim($body);
 258                 $private           = $orig_post['private'];
 259                 $pubmail_enabled   = $orig_post['pubmail'];
 260                 $network           = $orig_post['network'];
 261                 $guid              = $orig_post['guid'];
 262                 $extid             = $orig_post['extid'];
 263         } else {
 264                 $str_contact_allow = '';
 265                 $str_group_allow   = '';
 266                 $str_contact_deny  = '';
 267                 $str_group_deny    = '';
 268
 269                 if (($_REQUEST['visibility'] ?? '') !== 'public') {
 270                         $aclFormatter = DI::aclFormatter();
 271                         $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 272                         $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 273                         $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 274                         $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 275                 }
 276
 277                 $title             = Strings::escapeTags(trim($_REQUEST['title']    ?? ''));
 278                 $location          = Strings::escapeTags(trim($_REQUEST['location'] ?? ''));
 279                 $coord             = Strings::escapeTags(trim($_REQUEST['coord']    ?? ''));
 280                 $verb              = Strings::escapeTags(trim($_REQUEST['verb']     ?? ''));
 281                 $emailcc           = Strings::escapeTags(trim($_REQUEST['emailcc']  ?? ''));
 282                 $body              = trim($body);
 283                 $network           = Strings::escapeTags(trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN));
 284                 $guid              = System::createUUID();
 285
 286                 $postopts = $_REQUEST['postopts'] ?? '';
 287
 288                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 289                         $private = Item::PRIVATE;
 290                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 291                         $private = Item::UNLISTED;
 292                 } else {
 293                         $private = Item::PUBLIC;
 294                 }
 295
 296                 // If this is a comment, set the permissions from the parent.
 297
 298                 if ($toplevel_item) {
 299                         // for non native networks use the network of the original post as network of the item
 300                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 301                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 302                                 && ($network == "")) {
 303                                 $network = $toplevel_item['network'];
 304                         }
 305
 306                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 307                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 308                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 309                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 310                         $private           = $toplevel_item['private'];
 311
 312                         $wall              = $toplevel_item['wall'];
 313                 }
 314
 315                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 316
 317                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 318                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 319                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 320                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 321                         }
 322                 }
 323
 324                 if (!strlen($body)) {
 325                         if ($preview) {
 326                                 System::jsonExit(['preview' => '']);
 327                         }
 328
 329                         info(DI::l10n()->t('Empty post discarded.'));
 330                         if ($return_path) {
 331                                 DI::baseUrl()->redirect($return_path);
 332                         }
 333
 334                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 335                 }
 336         }
 337
 338         if (!empty($categories)) {
 339                 // get the "fileas" tags for this post
 340                 $filedas = FileTag::fileToArray($categories);
 341         }
 342
 343         // save old and new categories, so we can determine what needs to be deleted from pconfig
 344         $categories_old = $categories;
 345         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 346         $categories_new = $categories;
 347
 348         if (!empty($filedas) && is_array($filedas)) {
 349                 // append the fileas stuff to the new categories list
 350                 $categories .= FileTag::arrayToFile($filedas);
 351         }
 352
 353         // get contact info for poster
 354
 355         $author = null;
 356         $self   = false;
 357         $contact_id = 0;
 358
 359         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 360                 $self = true;
 361                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 362         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 363                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 364         }
 365
 366         if (DBA::isResult($author)) {
 367                 $contact_id = $author['id'];
 368         }
 369
 370         // get contact info for owner
 371         if ($profile_uid == local_user() || $allow_comment) {
 372                 $contact_record = $author;
 373         } else {
 374                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]);
 375         }
 376
 377         // Look for any tags and linkify them
 378         $inform   = '';
 379
 380         $tags = BBCode::getTags($body);
 381
 382         if ($thread_parent_uriid && !\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions')) {
 383                 $tags = item_add_implicit_mentions($tags, $thread_parent_contact, $thread_parent_uriid);
 384         }
 385
 386         $tagged = [];
 387
 388         $private_forum = false;
 389         $only_to_forum = false;
 390         $forum_contact = [];
 391
 392         if (count($tags)) {
 393                 foreach ($tags as $tag) {
 394                         $tag_type = substr($tag, 0, 1);
 395
 396                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 397                                 continue;
 398                         }
 399
 400                         /*
 401                          * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 402                          * Robert Johnson should be first in the $tags array
 403                          */
 404                         $fullnametagged = false;
 405                         /// @TODO $tagged is initialized above if () block and is not filled, maybe old-lost code?
 406                         foreach ($tagged as $nextTag) {
 407                                 if (stristr($nextTag, $tag . ' ')) {
 408                                         $fullnametagged = true;
 409                                         break;
 410                                 }
 411                         }
 412                         if ($fullnametagged) {
 413                                 continue;
 414                         }
 415
 416                         $success = handle_tag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 417                         if ($success['replaced']) {
 418                                 $tagged[] = $tag;
 419                         }
 420                         // When the forum is private or the forum is addressed with a "!" make the post private
 421                         if (is_array($success['contact']) && (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]))) {
 422                                 $private_forum = $success['contact']['prv'];
 423                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 424                                 $private_id = $success['contact']['id'];
 425                                 $forum_contact = $success['contact'];
 426                         } elseif (is_array($success['contact']) && !empty($success['contact']['forum']) &&
 427                                 ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 428                                 $private_forum = false;
 429                                 $only_to_forum = true;
 430                                 $private_id = $success['contact']['id'];
 431                                 $forum_contact = $success['contact'];
 432                         }
 433                 }
 434         }
 435
 436         $original_contact_id = $contact_id;
 437
 438         if (!$toplevel_item_id && count($forum_contact) && ($private_forum || $only_to_forum)) {
 439                 // we tagged a forum in a top level post. Now we change the post
 440                 $private = $private_forum;
 441
 442                 $str_group_allow = '';
 443                 $str_contact_deny = '';
 444                 $str_group_deny = '';
 445                 if ($private_forum) {
 446                         $str_contact_allow = '<' . $private_id . '>';
 447                 } else {
 448                         $str_contact_allow = '';
 449                 }
 450                 $contact_id = $private_id;
 451                 $contact_record = $forum_contact;
 452                 $_REQUEST['origin'] = false;
 453                 $wall = 0;
 454         }
 455
 456         /*
 457          * When a photo was uploaded into the message using the (profile wall) ajax
 458          * uploader, The permissions are initially set to disallow anybody but the
 459          * owner from seeing it. This is because the permissions may not yet have been
 460          * set for the post. If it's private, the photo permissions should be set
 461          * appropriately. But we didn't know the final permissions on the post until
 462          * now. So now we'll look for links of uploaded messages that are in the
 463          * post and set them to the same permissions as the post itself.
 464          */
 465
 466         $match = null;
 467
 468         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 469                 $objecttype = Activity\ObjectType::IMAGE;
 470         }
 471
 472         /*
 473          * Next link in any attachment references we find in the post.
 474          */
 475         $match = false;
 476
 477         /// @todo these lines should be moved to Model/Attach (Once it exists)
 478         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 479                 $attaches = $match[1];
 480                 if (count($attaches)) {
 481                         foreach ($attaches as $attach) {
 482                                 // Ensure to only modify attachments that you own
 483                                 $srch = '<' . intval($original_contact_id) . '>';
 484
 485                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 486                                                 'id' => $attach];
 487                                 if (!Attach::exists($condition)) {
 488                                         continue;
 489                                 }
 490
 491                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 492                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 493                                 $condition = ['id' => $attach];
 494                                 Attach::update($fields, $condition);
 495                         }
 496                 }
 497         }
 498
 499         // embedded bookmark or attachment in post? set bookmark flag
 500
 501         $data = BBCode::getAttachmentData($body);
 502         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 503                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 504                 $posttype = Item::PT_PAGE;
 505                 $objecttype =  Activity\ObjectType::BOOKMARK;
 506         }
 507
 508         $body = DI::bbCodeVideo()->transform($body);
 509
 510         $body = BBCode::scaleExternalImages($body);
 511
 512         // Setting the object type if not defined before
 513         if (!$objecttype) {
 514                 $objecttype = Activity\ObjectType::NOTE; // Default value
 515                 $objectdata = BBCode::getAttachedData($body);
 516
 517                 if ($objectdata["type"] == "link") {
 518                         $objecttype = Activity\ObjectType::BOOKMARK;
 519                 } elseif ($objectdata["type"] == "video") {
 520                         $objecttype = Activity\ObjectType::VIDEO;
 521                 } elseif ($objectdata["type"] == "photo") {
 522                         $objecttype = Activity\ObjectType::IMAGE;
 523                 }
 524
 525         }
 526
 527         $attachments = '';
 528         $match = false;
 529
 530         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 531                 foreach ($match[2] as $mtch) {
 532                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 533                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 534                         if ($attachment !== false) {
 535                                 if (strlen($attachments)) {
 536                                         $attachments .= ',';
 537                                 }
 538                                 $attachments .= '[attach]href="' . DI::baseUrl() . '/attach/' . $attachment['id'] .
 539                                                 '" length="' . $attachment['filesize'] . '" type="' . $attachment['filetype'] .
 540                                                 '" title="' . ($attachment['filename'] ? $attachment['filename'] : '') . '"[/attach]';
 541                         }
 542                         $body = str_replace($match[1],'',$body);
 543                 }
 544         }
 545
 546         if (!strlen($verb)) {
 547                 $verb = Activity::POST;
 548         }
 549
 550         if ($network == "") {
 551                 $network = Protocol::DFRN;
 552         }
 553
 554         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 555
 556         // even if the post arrived via API we are considering that it
 557         // originated on this site by default for determining relayability.
 558
 559         // Don't use "defaults" here. It would turn 0 to 1
 560         if (!isset($_REQUEST['origin'])) {
 561                 $origin = 1;
 562         } else {
 563                 $origin = $_REQUEST['origin'];
 564         }
 565
 566         $uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 567
 568         // Fallback so that we alway have a parent uri
 569         if (!$thr_parent_uri || !$toplevel_item_id) {
 570                 $thr_parent_uri = $uri;
 571         }
 572
 573         $datarray = [];
 574         $datarray['uid']           = $profile_uid;
 575         $datarray['wall']          = $wall;
 576         $datarray['gravity']       = $gravity;
 577         $datarray['network']       = $network;
 578         $datarray['contact-id']    = $contact_id;
 579         $datarray['owner-name']    = $contact_record['name'];
 580         $datarray['owner-link']    = $contact_record['url'];
 581         $datarray['owner-avatar']  = $contact_record['thumb'];
 582         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 583         $datarray['author-name']   = $author['name'];
 584         $datarray['author-link']   = $author['url'];
 585         $datarray['author-avatar'] = $author['thumb'];
 586         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 587         $datarray['created']       = DateTimeFormat::utcNow();
 588         $datarray['edited']        = DateTimeFormat::utcNow();
 589         $datarray['commented']     = DateTimeFormat::utcNow();
 590         $datarray['received']      = DateTimeFormat::utcNow();
 591         $datarray['changed']       = DateTimeFormat::utcNow();
 592         $datarray['extid']         = $extid;
 593         $datarray['guid']          = $guid;
 594         $datarray['uri']           = $uri;
 595         $datarray['title']         = $title;
 596         $datarray['body']          = $body;
 597         $datarray['app']           = $app;
 598         $datarray['location']      = $location;
 599         $datarray['coord']         = $coord;
 600         $datarray['file']          = $categories;
 601         $datarray['inform']        = $inform;
 602         $datarray['verb']          = $verb;
 603         $datarray['post-type']     = $posttype;
 604         $datarray['object-type']   = $objecttype;
 605         $datarray['allow_cid']     = $str_contact_allow;
 606         $datarray['allow_gid']     = $str_group_allow;
 607         $datarray['deny_cid']      = $str_contact_deny;
 608         $datarray['deny_gid']      = $str_group_deny;
 609         $datarray['private']       = $private;
 610         $datarray['pubmail']       = $pubmail_enabled;
 611         $datarray['attach']        = $attachments;
 612
 613         // This is not a bug. The item store function changes 'parent-uri' to 'thr-parent' and fetches 'parent-uri' new. (We should change this)
 614         $datarray['parent-uri']    = $thr_parent_uri;
 615
 616         $datarray['postopts']      = $postopts;
 617         $datarray['origin']        = $origin;
 618         $datarray['moderated']     = false;
 619         $datarray['object']        = $object;
 620
 621         /*
 622          * These fields are for the convenience of addons...
 623          * 'self' if true indicates the owner is posting on their own wall
 624          * If parent is 0 it is a top-level post.
 625          */
 626         $datarray['parent']        = $toplevel_item_id;
 627         $datarray['self']          = $self;
 628
 629         // This triggers posts via API and the mirror functions
 630         $datarray['api_source'] = $api_source;
 631
 632         // This field is for storing the raw conversation data
 633         $datarray['protocol'] = Conversation::PARCEL_DFRN;
 634
 635         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['parent-uri']]);
 636         if (DBA::isResult($conversation)) {
 637                 if ($conversation['conversation-uri'] != '') {
 638                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 639                 }
 640                 if ($conversation['conversation-href'] != '') {
 641                         $datarray['conversation-href'] = $conversation['conversation-href'];
 642                 }
 643         }
 644
 645         if ($orig_post) {
 646                 $datarray['edit'] = true;
 647         } else {
 648                 // If this was a share, add missing data here
 649                 $datarray = Item::addShareDataFromOriginal($datarray);
 650
 651                 $datarray['edit'] = false;
 652         }
 653
 654         // Check for hashtags in the body and repair or add hashtag links
 655         if ($preview || $orig_post) {
 656                 Item::setHashtags($datarray);
 657         }
 658
 659         // preview mode - prepare the body for display and send it via json
 660         if ($preview) {
 661                 // We set the datarray ID to -1 because in preview mode the dataray
 662                 // doesn't have an ID.
 663                 $datarray["id"] = -1;
 664                 $datarray["item_id"] = -1;
 665                 $datarray["author-network"] = Protocol::DFRN;
 666
 667                 $o = conversation($a, [array_merge($contact_record, $datarray)], 'search', false, true);
 668
 669                 System::jsonExit(['preview' => $o]);
 670         }
 671
 672         Hook::callAll('post_local',$datarray);
 673
 674         if (!empty($datarray['cancel'])) {
 675                 Logger::info('mod_item: post cancelled by addon.');
 676                 if ($return_path) {
 677                         DI::baseUrl()->redirect($return_path);
 678                 }
 679
 680                 $json = ['cancel' => 1];
 681                 if (!empty($_REQUEST['jsreload'])) {
 682                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 683                 }
 684
 685                 System::jsonExit($json);
 686         }
 687
 688         if ($orig_post) {
 689                 // Fill the cache field
 690                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 691                 Item::putInCache($datarray);
 692
 693                 $fields = [
 694                         'title' => $datarray['title'],
 695                         'body' => $datarray['body'],
 696                         'attach' => $datarray['attach'],
 697                         'file' => $datarray['file'],
 698                         'rendered-html' => $datarray['rendered-html'],
 699                         'rendered-hash' => $datarray['rendered-hash'],
 700                         'edited' => DateTimeFormat::utcNow(),
 701                         'changed' => DateTimeFormat::utcNow()];
 702
 703                 Item::update($fields, ['id' => $post_id]);
 704
 705                 // update filetags in pconfig
 706                 FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 707
 708                 info(DI::l10n()->t('Post updated.'));
 709                 if ($return_path) {
 710                         DI::baseUrl()->redirect($return_path);
 711                 }
 712
 713                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 714         }
 715
 716         unset($datarray['edit']);
 717         unset($datarray['self']);
 718         unset($datarray['api_source']);
 719
 720         if ($origin) {
 721                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 722                 if (!empty($signed)) {
 723                         $datarray['diaspora_signed_text'] = json_encode($signed);
 724                 }
 725         }
 726
 727         $post_id = Item::insert($datarray);
 728
 729         if (!$post_id) {
 730                 info(DI::l10n()->t('Item wasn\'t stored.'));
 731                 if ($return_path) {
 732                         DI::baseUrl()->redirect($return_path);
 733                 }
 734
 735                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 736         }
 737
 738         $datarray = Item::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 739
 740         if (!DBA::isResult($datarray)) {
 741                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 742                 if ($return_path) {
 743                         DI::baseUrl()->redirect($return_path);
 744                 }
 745
 746                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 747         }
 748
 749         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 750
 751         // update filetags in pconfig
 752         FileTag::updatePconfig($uid, $categories_old, $categories_new, 'category');
 753
 754         // These notifications are sent if someone else is commenting other your wall
 755         if ($toplevel_item_id) {
 756                 if ($contact_record != $author) {
 757                         notification([
 758                                 'type'         => Type::COMMENT,
 759                                 'notify_flags' => $user['notify-flags'],
 760                                 'language'     => $user['language'],
 761                                 'to_name'      => $user['username'],
 762                                 'to_email'     => $user['email'],
 763                                 'uid'          => $user['uid'],
 764                                 'item'         => $datarray,
 765                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 766                                 'source_name'  => $datarray['author-name'],
 767                                 'source_link'  => $datarray['author-link'],
 768                                 'source_photo' => $datarray['author-avatar'],
 769                                 'verb'         => Activity::POST,
 770                                 'otype'        => 'item',
 771                                 'parent'       => $toplevel_item_id,
 772                                 'parent_uri'   => $toplevel_item['uri']
 773                         ]);
 774                 }
 775         } else {
 776                 if (($contact_record != $author) && !count($forum_contact)) {
 777                         notification([
 778                                 'type'         => Type::WALL,
 779                                 'notify_flags' => $user['notify-flags'],
 780                                 'language'     => $user['language'],
 781                                 'to_name'      => $user['username'],
 782                                 'to_email'     => $user['email'],
 783                                 'uid'          => $user['uid'],
 784                                 'item'         => $datarray,
 785                                 'link'         => DI::baseUrl().'/display/'.urlencode($datarray['guid']),
 786                                 'source_name'  => $datarray['author-name'],
 787                                 'source_link'  => $datarray['author-link'],
 788                                 'source_photo' => $datarray['author-avatar'],
 789                                 'verb'         => Activity::POST,
 790                                 'otype'        => 'item'
 791                         ]);
 792                 }
 793         }
 794
 795         Hook::callAll('post_local_end', $datarray);
 796
 797         if (strlen($emailcc) && $profile_uid == local_user()) {
 798                 $recipients = explode(',', $emailcc);
 799                 if (count($recipients)) {
 800                         foreach ($recipients as $recipient) {
 801                                 $address = trim($recipient);
 802                                 if (!strlen($address)) {
 803                                         continue;
 804                                 }
 805                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 806                                         $datarray, $address, $author['thumb'] ?? ''));
 807                         }
 808                 }
 809         }
 810
 811         // Insert an item entry for UID=0 for global entries.
 812         // We now do it in the background to save some time.
 813         // This is important in interactive environments like the frontend or the API.
 814         // We don't fork a new process since this is done anyway with the following command
 815         Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "CreateShadowEntry", $post_id);
 816
 817         // When we are doing some forum posting via ! we have to start the notifier manually.
 818         // These kind of posts don't initiate the notifier call in the item class.
 819         if ($only_to_forum) {
 820                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, $post_id);
 821         }
 822
 823         Logger::info('post_complete');
 824
 825         if ($api_source) {
 826                 return $post_id;
 827         }
 828
 829         info(DI::l10n()->t('Post published.'));
 830         item_post_return(DI::baseUrl(), $api_source, $return_path);
 831         // NOTREACHED
 832 }
 833
 834 function item_post_return($baseurl, $api_source, $return_path)
 835 {
 836         if ($api_source) {
 837                 return;
 838         }
 839
 840         if ($return_path) {
 841                 DI::baseUrl()->redirect($return_path);
 842         }
 843
 844         $json = ['success' => 1];
 845         if (!empty($_REQUEST['jsreload'])) {
 846                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 847         }
 848
 849         Logger::info('post_json', ['json' => $json]);
 850
 851         System::jsonExit($json);
 852 }
 853
 854 function item_content(App $a)
 855 {
 856         if (!Session::isAuthenticated()) {
 857                 return;
 858         }
 859
 860         $o = '';
 861
 862         if (($a->argc >= 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
 863                 if (DI::mode()->isAjax()) {
 864                         $o = Item::deleteForUser(['id' => $a->argv[2]], local_user());
 865                 } else {
 866                         if (!empty($a->argv[3])) {
 867                                 $o = drop_item($a->argv[2], $a->argv[3]);
 868                         }
 869                         else {
 870                                 $o = drop_item($a->argv[2]);
 871                         }
 872                 }
 873
 874                 if (DI::mode()->isAjax()) {
 875                         // ajax return: [<item id>, 0 (no perm) | <owner id>]
 876                         System::jsonExit([intval($a->argv[2]), intval($o)]);
 877                 }
 878         }
 879
 880         return $o;
 881 }
 882
 883 /**
 884  * This function removes the tag $tag from the text $body and replaces it with
 885  * the appropriate link.
 886  *
 887  * @param App     $a
 888  * @param string  $body     the text to replace the tag in
 889  * @param string  $inform   a comma-seperated string containing everybody to inform
 890  * @param integer $profile_uid
 891  * @param string  $tag      the tag to replace
 892  * @param string  $network  The network of the post
 893  *
 894  * @return array|bool ['replaced' => $replaced, 'contact' => $contact];
 895  * @throws ImagickException
 896  * @throws HTTPException\InternalServerErrorException
 897  */
 898 function handle_tag(&$body, &$inform, $profile_uid, $tag, $network = "")
 899 {
 900         $replaced = false;
 901
 902         //is it a person tag?
 903         if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
 904                 $tag_type = substr($tag, 0, 1);
 905                 //is it already replaced?
 906                 if (strpos($tag, '[url=')) {
 907                         // Checking for the alias that is used for OStatus
 908                         $pattern = "/[@!]\[url\=(.*?)\](.*?)\[\/url\]/ism";
 909                         if (preg_match($pattern, $tag, $matches)) {
 910                                 $data = Contact::getDetailsByURL($matches[1]);
 911
 912                                 if ($data["alias"] != "") {
 913                                         $newtag = '@[url=' . $data["alias"] . ']' . $data["nick"] . '[/url]';
 914                                 }
 915                         }
 916
 917                         return $replaced;
 918                 }
 919
 920                 //get the person's name
 921                 $name = substr($tag, 1);
 922
 923                 // Sometimes the tag detection doesn't seem to work right
 924                 // This is some workaround
 925                 $nameparts = explode(" ", $name);
 926                 $name = $nameparts[0];
 927
 928                 // Try to detect the contact in various ways
 929                 if (strpos($name, 'http://')) {
 930                         // At first we have to ensure that the contact exists
 931                         Contact::getIdForURL($name);
 932
 933                         // Now we should have something
 934                         $contact = Contact::getDetailsByURL($name);
 935                 } elseif (strpos($name, '@')) {
 936                         // This function automatically probes when no entry was found
 937                         $contact = Contact::getDetailsByAddr($name);
 938                 } else {
 939                         $contact = false;
 940                         $fields = ['id', 'url', 'nick', 'name', 'alias', 'network', 'forum', 'prv'];
 941
 942                         if (strrpos($name, '+')) {
 943                                 // Is it in format @nick+number?
 944                                 $tagcid = intval(substr($name, strrpos($name, '+') + 1));
 945                                 $contact = DBA::selectFirst('contact', $fields, ['id' => $tagcid, 'uid' => $profile_uid]);
 946                         }
 947
 948                         // select someone by nick or attag in the current network
 949                         if (!DBA::isResult($contact) && ($network != "")) {
 950                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `network` = ? AND `uid` = ?",
 951                                                 $name, $name, $network, $profile_uid];
 952                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 953                         }
 954
 955                         //select someone by name in the current network
 956                         if (!DBA::isResult($contact) && ($network != "")) {
 957                                 $condition = ['name' => $name, 'network' => $network, 'uid' => $profile_uid];
 958                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 959                         }
 960
 961                         // select someone by nick or attag in any network
 962                         if (!DBA::isResult($contact)) {
 963                                 $condition = ["(`nick` = ? OR `attag` = ?) AND `uid` = ?", $name, $name, $profile_uid];
 964                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 965                         }
 966
 967                         // select someone by name in any network
 968                         if (!DBA::isResult($contact)) {
 969                                 $condition = ['name' => $name, 'uid' => $profile_uid];
 970                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 971                         }
 972                 }
 973
 974                 // Check if $contact has been successfully loaded
 975                 if (DBA::isResult($contact)) {
 976                         if (strlen($inform) && (isset($contact["notify"]) || isset($contact["id"]))) {
 977                                 $inform .= ',';
 978                         }
 979
 980                         if (isset($contact["id"])) {
 981                                 $inform .= 'cid:' . $contact["id"];
 982                         } elseif (isset($contact["notify"])) {
 983                                 $inform  .= $contact["notify"];
 984                         }
 985
 986                         $profile = $contact["url"];
 987                         $newname = ($contact["name"] ?? '') ?: $contact["nick"];
 988                 }
 989
 990                 //if there is an url for this persons profile
 991                 if (isset($profile) && ($newname != "")) {
 992                         $replaced = true;
 993                         // create profile link
 994                         $profile = str_replace(',', '%2c', $profile);
 995                         $newtag = $tag_type.'[url=' . $profile . ']' . $newname . '[/url]';
 996                         $body = str_replace($tag_type . $name, $newtag, $body);
 997                 }
 998         }
 999
1000         return ['replaced' => $replaced, 'contact' => $contact];
1001 }
1002
1003 function item_add_implicit_mentions(array $tags, array $thread_parent_contact, $thread_parent_uriid)
1004 {
1005         if (DI::config()->get('system', 'disable_implicit_mentions')) {
1006                 // Add a tag if the parent contact is from ActivityPub or OStatus (This will notify them)
1007                 if (in_array($thread_parent_contact['network'], [Protocol::OSTATUS, Protocol::ACTIVITYPUB])) {
1008                         $contact = Tag::TAG_CHARACTER[Tag::MENTION] . '[url=' . $thread_parent_contact['url'] . ']' . $thread_parent_contact['nick'] . '[/url]';
1009                         if (!stripos(implode($tags), '[url=' . $thread_parent_contact['url'] . ']')) {
1010                                 $tags[] = $contact;
1011                         }
1012                 }
1013         } else {
1014                 $implicit_mentions = [
1015                         $thread_parent_contact['url'] => $thread_parent_contact['nick']
1016                 ];
1017
1018                 $parent_terms = Tag::getByURIId($thread_parent_uriid, [Tag::MENTION, Tag::IMPLICIT_MENTION]);
1019
1020                 foreach ($parent_terms as $parent_term) {
1021                         $implicit_mentions[$parent_term['url']] = $parent_term['name'];
1022                 }
1023
1024                 foreach ($implicit_mentions as $url => $label) {
1025                         if ($url != \Friendica\Model\Profile::getMyURL() && !stripos(implode($tags), '[url=' . $url . ']')) {
1026                                 $tags[] = Tag::TAG_CHARACTER[Tag::IMPLICIT_MENTION] . '[url=' . $url . ']' . $label . '[/url]';
1027                         }
1028                 }
1029         }
1030
1031         return $tags;
1032 }