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