mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   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\APContact;
  44 use Friendica\Model\Attach;
  45 use Friendica\Model\Contact;
  46 use Friendica\Model\Conversation;
  47 use Friendica\Model\FileTag;
  48 use Friendica\Model\Item;
  49 use Friendica\Model\ItemURI;
  50 use Friendica\Model\Notification;
  51 use Friendica\Model\Photo;
  52 use Friendica\Model\Post;
  53 use Friendica\Model\Tag;
  54 use Friendica\Model\User;
  55 use Friendica\Network\HTTPException;
  56 use Friendica\Object\EMail\ItemCCEMail;
  57 use Friendica\Protocol\Activity;
  58 use Friendica\Security\Security;
  59 use Friendica\Util\DateTimeFormat;
  60 use Friendica\Util\ParseUrl;
  61 use Friendica\Worker\Delivery;
  62
  63 function item_post(App $a) {
  64         if (!Session::isAuthenticated()) {
  65                 throw new HTTPException\ForbiddenException();
  66         }
  67
  68         $uid = local_user();
  69
  70         if (!empty($_REQUEST['dropitems'])) {
  71                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  72                 foreach ($arr_drop as $item) {
  73                         Item::deleteForUser(['id' => $item], $uid);
  74                 }
  75
  76                 $json = ['success' => 1];
  77                 System::jsonExit($json);
  78         }
  79
  80         Hook::callAll('post_local_start', $_REQUEST);
  81
  82         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  83
  84         $api_source = $_REQUEST['api_source'] ?? false;
  85
  86         $return_path = $_REQUEST['return'] ?? '';
  87         $preview = intval($_REQUEST['preview'] ?? 0);
  88
  89         /*
  90          * Check for doubly-submitted posts, and reject duplicates
  91          * Note that we have to ignore previews, otherwise nothing will post
  92          * after it's been previewed
  93          */
  94         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  95                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  96                         Logger::info('item post: duplicate post');
  97                         item_post_return(DI::baseUrl(), $api_source, $return_path);
  98                 } else {
  99                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
 100                 }
 101         }
 102
 103         // Is this a reply to something?
 104         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
 105         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 106
 107         $parent_item = null;
 108         $toplevel_item = null;
 109         $toplevel_item_id = 0;
 110         $toplevel_user_id = null;
 111
 112         $objecttype = null;
 113         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 114         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 115
 116         if ($parent_item_id || $thr_parent_uri) {
 117                 if ($parent_item_id) {
 118                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item_id]);
 119                 } elseif ($thr_parent_uri) {
 120                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 121                 }
 122
 123                 // if this isn't the top-level parent of the conversation, find it
 124                 if (DBA::isResult($parent_item)) {
 125                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 126                         $thr_parent_uri = $parent_item['uri'];
 127                         $toplevel_item = $parent_item;
 128
 129                         if ($parent_item['gravity'] != GRAVITY_PARENT) {
 130                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['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                 // When commenting on a public post then store the post for the current user
 143                 // This enables interaction like starring and saving into folders
 144                 if ($toplevel_item['uid'] == 0) {
 145                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user());
 146                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 147                         if ($stored) {
 148                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $stored]);
 149                         }
 150                 }
 151
 152                 $toplevel_item_id = $toplevel_item['id'];
 153                 $toplevel_user_id = $toplevel_item['uid'];
 154
 155                 $objecttype = Activity\ObjectType::COMMENT;
 156         }
 157
 158         if ($toplevel_item_id) {
 159                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 160         }
 161
 162         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 163         $app         = strip_tags($_REQUEST['source'] ?? '');
 164         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 165         $object      = $_REQUEST['object'] ?? '';
 166
 167         // Don't use "defaults" here. It would turn 0 to 1
 168         if (!isset($_REQUEST['wall'])) {
 169                 $wall = 1;
 170         } else {
 171                 $wall = $_REQUEST['wall'];
 172         }
 173
 174         // Ensure that the user id in a thread always stay the same
 175         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [local_user(), 0])) {
 176                 $profile_uid = $toplevel_user_id;
 177         }
 178
 179         // Allow commenting if it is an answer to a public post
 180         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 181
 182         // Now check that valid personal details have been provided
 183         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 184                 notice(DI::l10n()->t('Permission denied.'));
 185                 if ($return_path) {
 186                         DI::baseUrl()->redirect($return_path);
 187                 }
 188
 189                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 190         }
 191
 192         // Init post instance
 193         $orig_post = null;
 194
 195         // is this an edited post?
 196         if ($post_id > 0) {
 197                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 198         }
 199
 200         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 201         if (!DBA::isResult($user) && !$toplevel_item_id) {
 202                 return 0;
 203         }
 204
 205         $categories = '';
 206         $postopts = '';
 207         $emailcc = '';
 208         $body = $_REQUEST['body'] ?? '';
 209         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 210
 211         // If we have a speparate attachment, we need to add it to the body.
 212         if (!empty($has_attachment)) {
 213                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 214                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 215                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 216
 217                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 218                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 219
 220                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 221                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 222
 223                 // Fetch the basic attachment data
 224                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 225                 unset($attachment['keywords']);
 226
 227                 // Overwrite the basic data with possible changes from the frontend
 228                 $attachment['type'] = $attachment_type;
 229                 $attachment['title'] = $attachment_title;
 230                 $attachment['text'] = $attachment_text;
 231                 $attachment['url'] = $attachment_url;
 232
 233                 if (!empty($attachment_img_src)) {
 234                         $attachment['images'] = [
 235                                 0 => [
 236                                         'src'    => $attachment_img_src,
 237                                         'width'  => $attachment_img_width,
 238                                         'height' => $attachment_img_height
 239                                 ]
 240                         ];
 241                 } else {
 242                         unset($attachment['images']);
 243                 }
 244
 245                 $att_bbcode = "\n" . PageInfo::getFooterFromData($attachment);
 246                 $body .= $att_bbcode;
 247         }
 248
 249         // Convert links with empty descriptions to links without an explicit description
 250         $body = preg_replace('#\[url=([^\]]*?)\]\[/url\]#ism', '[url]$1[/url]', $body);
 251
 252         if (!empty($orig_post)) {
 253                 $str_group_allow   = $orig_post['allow_gid'];
 254                 $str_contact_allow = $orig_post['allow_cid'];
 255                 $str_group_deny    = $orig_post['deny_gid'];
 256                 $str_contact_deny  = $orig_post['deny_cid'];
 257                 $location          = $orig_post['location'];
 258                 $coord             = $orig_post['coord'];
 259                 $verb              = $orig_post['verb'];
 260                 $objecttype        = $orig_post['object-type'];
 261                 $app               = $orig_post['app'];
 262                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 263                 $title             = trim($_REQUEST['title'] ?? '');
 264                 $body              = trim($body);
 265                 $private           = $orig_post['private'];
 266                 $pubmail_enabled   = $orig_post['pubmail'];
 267                 $network           = $orig_post['network'];
 268                 $guid              = $orig_post['guid'];
 269                 $extid             = $orig_post['extid'];
 270         } else {
 271                 $aclFormatter = DI::aclFormatter();
 272                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 273                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 274                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 275                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 276
 277                 $visibility = $_REQUEST['visibility'] ?? '';
 278                 if ($visibility === 'public') {
 279                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 280                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 281                 } else if ($visibility === 'custom') {
 282                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 283                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 284                         // See https://github.com/friendica/friendica/issues/9672
 285                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 286                 }
 287
 288                 $title             = trim($_REQUEST['title']    ?? '');
 289                 $location          = trim($_REQUEST['location'] ?? '');
 290                 $coord             = trim($_REQUEST['coord']    ?? '');
 291                 $verb              = trim($_REQUEST['verb']     ?? '');
 292                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 293                 $body              = trim($body);
 294                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 295                 $guid              = System::createUUID();
 296
 297                 $postopts = $_REQUEST['postopts'] ?? '';
 298
 299                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 300                         $private = Item::PRIVATE;
 301                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 302                         $private = Item::UNLISTED;
 303                 } else {
 304                         $private = Item::PUBLIC;
 305                 }
 306
 307                 // If this is a comment, set the permissions from the parent.
 308
 309                 if ($toplevel_item) {
 310                         // for non native networks use the network of the original post as network of the item
 311                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 312                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 313                                 && ($network == "")) {
 314                                 $network = $toplevel_item['network'];
 315                         }
 316
 317                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 318                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 319                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 320                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 321                         $private           = $toplevel_item['private'];
 322
 323                         $wall              = $toplevel_item['wall'];
 324                 }
 325
 326                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 327
 328                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 329                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 330                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 331                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 332                         }
 333                 }
 334
 335                 if (!strlen($body)) {
 336                         if ($preview) {
 337                                 System::jsonExit(['preview' => '']);
 338                         }
 339
 340                         notice(DI::l10n()->t('Empty post discarded.'));
 341                         if ($return_path) {
 342                                 DI::baseUrl()->redirect($return_path);
 343                         }
 344
 345                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 346                 }
 347         }
 348
 349         if (!empty($categories)) {
 350                 // get the "fileas" tags for this post
 351                 $filedas = FileTag::fileToArray($categories);
 352         }
 353
 354         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 355
 356         if (!empty($filedas) && is_array($filedas)) {
 357                 // append the fileas stuff to the new categories list
 358                 $categories .= FileTag::arrayToFile($filedas);
 359         }
 360
 361         // get contact info for poster
 362
 363         $author = null;
 364         $self   = false;
 365         $contact_id = 0;
 366
 367         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 368                 $self = true;
 369                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 370         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 371                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 372         }
 373
 374         if (DBA::isResult($author)) {
 375                 $contact_id = $author['id'];
 376         }
 377
 378         // get contact info for owner
 379         if ($profile_uid == local_user() || $allow_comment) {
 380                 $contact_record = $author ?: [];
 381         } else {
 382                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 383         }
 384
 385         // Look for any tags and linkify them
 386         $inform   = '';
 387         $private_forum = false;
 388         $private_id = null;
 389         $only_to_forum = false;
 390         $forum_contact = [];
 391
 392         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 393                 $tags = BBCode::getTags($body);
 394
 395                 $tagged = [];
 396
 397                 foreach ($tags as $tag) {
 398                         $tag_type = substr($tag, 0, 1);
 399
 400                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 401                                 continue;
 402                         }
 403
 404                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 405                          * Robert Johnson should be first in the $tags array
 406                          */
 407                         foreach ($tagged as $nextTag) {
 408                                 if (stristr($nextTag, $tag . ' ')) {
 409                                         continue 2;
 410                                 }
 411                         }
 412
 413                         if ($success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network)) {
 414                                 if ($success['replaced']) {
 415                                         $tagged[] = $tag;
 416                                 }
 417                                 // When the forum is private or the forum is addressed with a "!" make the post private
 418                                 if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 419                                         $private_forum = $success['contact']['prv'];
 420                                         $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 421                                         $private_id = $success['contact']['id'];
 422                                         $forum_contact = $success['contact'];
 423                                 } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 424                                         $private_forum = false;
 425                                         $only_to_forum = true;
 426                                         $private_id = $success['contact']['id'];
 427                                         $forum_contact = $success['contact'];
 428                                 }
 429                         }
 430                 }
 431
 432                 return $body;
 433         });
 434
 435         $original_contact_id = $contact_id;
 436
 437         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 438                 // we tagged a forum in a top level post. Now we change the post
 439                 $private = $private_forum ? Item::PRIVATE : Item::UNLISTED;
 440
 441                 if ($only_to_forum) {
 442                         $postopts = '';
 443                 }
 444
 445                 if (!$private_forum) {
 446                         $str_contact_allow = '';
 447                         $str_group_allow   = '';
 448                         $str_contact_deny  = '';
 449                         $str_group_deny    = '';
 450                 }
 451
 452                 if ($private_forum || !APContact::getByURL($forum_contact['url'])) {
 453                         $str_group_allow = '';
 454                         $str_contact_deny = '';
 455                         $str_group_deny = '';
 456                         if ($private_forum) {
 457                                 $str_contact_allow = '<' . $private_id . '>';
 458                         } else {
 459                                 $str_contact_allow = '';
 460                         }
 461                         $contact_id = $private_id;
 462                         $contact_record = $forum_contact;
 463                         $_REQUEST['origin'] = false;
 464                         $wall = 0;
 465                 }
 466         }
 467
 468         /*
 469          * When a photo was uploaded into the message using the (profile wall) ajax
 470          * uploader, The permissions are initially set to disallow anybody but the
 471          * owner from seeing it. This is because the permissions may not yet have been
 472          * set for the post. If it's private, the photo permissions should be set
 473          * appropriately. But we didn't know the final permissions on the post until
 474          * now. So now we'll look for links of uploaded messages that are in the
 475          * post and set them to the same permissions as the post itself.
 476          */
 477
 478         $match = null;
 479
 480         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 481                 $objecttype = Activity\ObjectType::IMAGE;
 482         }
 483
 484         /*
 485          * Next link in any attachment references we find in the post.
 486          */
 487         $match = [];
 488
 489         /// @todo these lines should be moved to Model/Attach (Once it exists)
 490         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 491                 $attaches = $match[1];
 492                 if (count($attaches)) {
 493                         foreach ($attaches as $attach) {
 494                                 // Ensure to only modify attachments that you own
 495                                 $srch = '<' . intval($original_contact_id) . '>';
 496
 497                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 498                                                 'id' => $attach];
 499                                 if (!Attach::exists($condition)) {
 500                                         continue;
 501                                 }
 502
 503                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 504                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 505                                 $condition = ['id' => $attach];
 506                                 Attach::update($fields, $condition);
 507                         }
 508                 }
 509         }
 510
 511         // embedded bookmark or attachment in post? set bookmark flag
 512
 513         $data = BBCode::getAttachmentData($body);
 514         $match = [];
 515         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 516                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 517                 $posttype = Item::PT_PAGE;
 518                 $objecttype =  Activity\ObjectType::BOOKMARK;
 519         }
 520
 521         $body = DI::bbCodeVideo()->transform($body);
 522
 523         $body = BBCode::scaleExternalImages($body);
 524
 525         // Setting the object type if not defined before
 526         if (!$objecttype) {
 527                 $objecttype = Activity\ObjectType::NOTE; // Default value
 528                 $objectdata = BBCode::getAttachedData($body);
 529
 530                 if ($objectdata["type"] == "link") {
 531                         $objecttype = Activity\ObjectType::BOOKMARK;
 532                 } elseif ($objectdata["type"] == "video") {
 533                         $objecttype = Activity\ObjectType::VIDEO;
 534                 } elseif ($objectdata["type"] == "photo") {
 535                         $objecttype = Activity\ObjectType::IMAGE;
 536                 }
 537
 538         }
 539
 540         $attachments = '';
 541         $match = [];
 542
 543         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 544                 foreach ($match[2] as $mtch) {
 545                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 546                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 547                         if ($attachment !== false) {
 548                                 if (strlen($attachments)) {
 549                                         $attachments .= ',';
 550                                 }
 551                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 552                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 553                         }
 554                         $body = str_replace($match[1],'',$body);
 555                 }
 556         }
 557
 558         if (!strlen($verb)) {
 559                 $verb = Activity::POST;
 560         }
 561
 562         if ($network == "") {
 563                 $network = Protocol::DFRN;
 564         }
 565
 566         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 567
 568         // even if the post arrived via API we are considering that it
 569         // originated on this site by default for determining relayability.
 570
 571         // Don't use "defaults" here. It would turn 0 to 1
 572         if (!isset($_REQUEST['origin'])) {
 573                 $origin = 1;
 574         } else {
 575                 $origin = $_REQUEST['origin'];
 576         }
 577
 578         $uri = Item::newURI($api_source ? $profile_uid : $uid, $guid);
 579
 580         // Fallback so that we alway have a parent uri
 581         if (!$thr_parent_uri || !$toplevel_item_id) {
 582                 $thr_parent_uri = $uri;
 583         }
 584
 585         $datarray = [];
 586         $datarray['uid']           = $profile_uid;
 587         $datarray['wall']          = $wall;
 588         $datarray['gravity']       = $gravity;
 589         $datarray['network']       = $network;
 590         $datarray['contact-id']    = $contact_id;
 591         $datarray['owner-name']    = $contact_record['name'] ?? '';
 592         $datarray['owner-link']    = $contact_record['url'] ?? '';
 593         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 594         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 595         $datarray['author-name']   = $author['name'];
 596         $datarray['author-link']   = $author['url'];
 597         $datarray['author-avatar'] = $author['thumb'];
 598         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 599         $datarray['created']       = DateTimeFormat::utcNow();
 600         $datarray['edited']        = DateTimeFormat::utcNow();
 601         $datarray['commented']     = DateTimeFormat::utcNow();
 602         $datarray['received']      = DateTimeFormat::utcNow();
 603         $datarray['changed']       = DateTimeFormat::utcNow();
 604         $datarray['extid']         = $extid;
 605         $datarray['guid']          = $guid;
 606         $datarray['uri']           = $uri;
 607         $datarray['title']         = $title;
 608         $datarray['body']          = $body;
 609         $datarray['app']           = $app;
 610         $datarray['location']      = $location;
 611         $datarray['coord']         = $coord;
 612         $datarray['file']          = $categories;
 613         $datarray['inform']        = $inform;
 614         $datarray['verb']          = $verb;
 615         $datarray['post-type']     = $posttype;
 616         $datarray['object-type']   = $objecttype;
 617         $datarray['allow_cid']     = $str_contact_allow;
 618         $datarray['allow_gid']     = $str_group_allow;
 619         $datarray['deny_cid']      = $str_contact_deny;
 620         $datarray['deny_gid']      = $str_group_deny;
 621         $datarray['private']       = $private;
 622         $datarray['pubmail']       = $pubmail_enabled;
 623         $datarray['attach']        = $attachments;
 624
 625         $datarray['thr-parent']    = $thr_parent_uri;
 626
 627         $datarray['postopts']      = $postopts;
 628         $datarray['origin']        = $origin;
 629         $datarray['object']        = $object;
 630
 631         $datarray['attachments']   = $_REQUEST['attachments'] ?? [];
 632
 633         /*
 634          * These fields are for the convenience of addons...
 635          * 'self' if true indicates the owner is posting on their own wall
 636          * If parent is 0 it is a top-level post.
 637          */
 638         $datarray['parent']        = $toplevel_item_id;
 639         $datarray['self']          = $self;
 640
 641         // This triggers posts via API and the mirror functions
 642         $datarray['api_source'] = $api_source;
 643
 644         // This field is for storing the raw conversation data
 645         $datarray['protocol'] = Conversation::PARCEL_DIRECT;
 646         $datarray['direction'] = Conversation::PUSH;
 647
 648         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 649         if (DBA::isResult($conversation)) {
 650                 if ($conversation['conversation-uri'] != '') {
 651                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 652                 }
 653                 if ($conversation['conversation-href'] != '') {
 654                         $datarray['conversation-href'] = $conversation['conversation-href'];
 655                 }
 656         }
 657
 658         if ($orig_post) {
 659                 $datarray['edit'] = true;
 660         } else {
 661                 // If this was a share, add missing data here
 662                 $datarray = Item::addShareDataFromOriginal($datarray);
 663
 664                 $datarray['edit'] = false;
 665         }
 666
 667         // Check for hashtags in the body and repair or add hashtag links
 668         if ($preview || $orig_post) {
 669                 $datarray['body'] = Item::setHashtags($datarray['body']);
 670         }
 671
 672         // preview mode - prepare the body for display and send it via json
 673         if ($preview) {
 674                 // We set the datarray ID to -1 because in preview mode the dataray
 675                 // doesn't have an ID.
 676                 $datarray["id"] = -1;
 677                 $datarray["uri-id"] = -1;
 678                 $datarray["author-network"] = Protocol::DFRN;
 679
 680                 $o = DI::conversation()->create([array_merge($contact_record, $datarray)], 'search', false, true);
 681
 682                 System::jsonExit(['preview' => $o]);
 683         }
 684
 685         Hook::callAll('post_local',$datarray);
 686
 687         if (!empty($_REQUEST['scheduled_at'])) {
 688                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimezone());
 689                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 690                         unset($datarray['created']);
 691                         unset($datarray['edited']);
 692                         unset($datarray['commented']);
 693                         unset($datarray['received']);
 694                         unset($datarray['changed']);
 695                         unset($datarray['edit']);
 696                         unset($datarray['self']);
 697                         unset($datarray['api_source']);
 698
 699                         Post\Delayed::add($datarray['uri'], $datarray, PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 700                         item_post_return(DI::baseUrl(), $api_source, $return_path);
 701                 }
 702         }
 703
 704         if (!empty($datarray['cancel'])) {
 705                 Logger::info('mod_item: post cancelled by addon.');
 706                 if ($return_path) {
 707                         DI::baseUrl()->redirect($return_path);
 708                 }
 709
 710                 $json = ['cancel' => 1];
 711                 if (!empty($_REQUEST['jsreload'])) {
 712                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 713                 }
 714
 715                 System::jsonExit($json);
 716         }
 717
 718         $datarray['uri-id'] = ItemURI::getIdByURI($datarray['uri']);
 719
 720         if ($orig_post) {
 721                 // Fill the cache field
 722                 // This could be done in Item::update as well - but we have to check for the existance of some fields.
 723                 Item::putInCache($datarray);
 724
 725                 $fields = [
 726                         'title' => $datarray['title'],
 727                         'body' => $datarray['body'],
 728                         'attach' => $datarray['attach'],
 729                         'file' => $datarray['file'],
 730                         'rendered-html' => $datarray['rendered-html'],
 731                         'rendered-hash' => $datarray['rendered-hash'],
 732                         'edited' => DateTimeFormat::utcNow(),
 733                         'changed' => DateTimeFormat::utcNow()];
 734
 735                 Item::update($fields, ['id' => $post_id]);
 736
 737                 if ($return_path) {
 738                         DI::baseUrl()->redirect($return_path);
 739                 }
 740
 741                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 742         }
 743
 744         unset($datarray['edit']);
 745         unset($datarray['self']);
 746         unset($datarray['api_source']);
 747
 748         $post_id = Item::insert($datarray);
 749
 750         if (!$post_id) {
 751                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 752                 if ($return_path) {
 753                         DI::baseUrl()->redirect($return_path);
 754                 }
 755
 756                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 757         }
 758
 759         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 760
 761         if (!DBA::isResult($datarray)) {
 762                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 763                 if ($return_path) {
 764                         DI::baseUrl()->redirect($return_path);
 765                 }
 766
 767                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 768         }
 769
 770         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 771
 772         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 773                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 774         }
 775
 776         // These notifications are sent if someone else is commenting other your wall
 777         if ($contact_record != $author) {
 778                 if ($toplevel_item_id) {
 779                         notification([
 780                                 'type'  => Notification\Type::COMMENT,
 781                                 'otype' => Notification\ObjectType::ITEM,
 782                                 'verb'  => Activity::POST,
 783                                 'uid'   => $profile_uid,
 784                                 'cid'   => $datarray['author-id'],
 785                                 'item'  => $datarray,
 786                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 787                         ]);
 788                 } elseif (empty($forum_contact)) {
 789                         notification([
 790                                 'type'  => Notification\Type::WALL,
 791                                 'otype' => Notification\ObjectType::ITEM,
 792                                 'verb'  => Activity::POST,
 793                                 'uid'   => $profile_uid,
 794                                 'cid'   => $datarray['author-id'],
 795                                 'item'  => $datarray,
 796                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 797                         ]);
 798                 }
 799         }
 800
 801         Hook::callAll('post_local_end', $datarray);
 802
 803         if (strlen($emailcc) && $profile_uid == local_user()) {
 804                 $recipients = explode(',', $emailcc);
 805                 if (count($recipients)) {
 806                         foreach ($recipients as $recipient) {
 807                                 $address = trim($recipient);
 808                                 if (!strlen($address)) {
 809                                         continue;
 810                                 }
 811                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 812                                         $datarray, $address, $author['thumb'] ?? ''));
 813                         }
 814                 }
 815         }
 816
 817         // When we are doing some forum posting via ! we have to start the notifier manually.
 818         // These kind of posts don't initiate the notifier call in the item class.
 819         if ($only_to_forum) {
 820                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, (int)$datarray['uri-id'], (int)$datarray['uid']);
 821         }
 822
 823         Logger::info('post_complete');
 824
 825         if ($api_source) {
 826                 return $post_id;
 827         }
 828
 829         item_post_return(DI::baseUrl(), $api_source, $return_path);
 830         // NOTREACHED
 831 }
 832
 833 function item_post_return($baseurl, $api_source, $return_path)
 834 {
 835         if ($api_source) {
 836                 return;
 837         }
 838
 839         if ($return_path) {
 840                 DI::baseUrl()->redirect($return_path);
 841         }
 842
 843         $json = ['success' => 1];
 844         if (!empty($_REQUEST['jsreload'])) {
 845                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 846         }
 847
 848         Logger::info('post_json', ['json' => $json]);
 849
 850         System::jsonExit($json);
 851 }
 852
 853 function item_content(App $a)
 854 {
 855         if (!Session::isAuthenticated()) {
 856                 throw new HTTPException\UnauthorizedException();
 857         }
 858
 859         $args = DI::args();
 860
 861         if (!$args->has(3)) {
 862                 throw new HTTPException\BadRequestException();
 863         }
 864
 865         $o = '';
 866         switch ($args->get(1)) {
 867                 case 'drop':
 868                         if (DI::mode()->isAjax()) {
 869                                 Item::deleteForUser(['id' => $args->get(2)], local_user());
 870                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 871                                 System::jsonExit([intval($args->get(2)), local_user()]);
 872                         } else {
 873                                 if (!empty($args->get(3))) {
 874                                         $o = drop_item($args->get(2), $args->get(3));
 875                                 } else {
 876                                         $o = drop_item($args->get(2));
 877                                 }
 878                         }
 879                         break;
 880                 case 'block':
 881                         $item = Post::selectFirstForUser(local_user(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 882                         if (empty($item['author-id'])) {
 883                                 throw new HTTPException\NotFoundException('Item not found');
 884                         }
 885
 886                         Contact\User::setBlocked($item['author-id'], local_user(), true);
 887
 888                         if (DI::mode()->isAjax()) {
 889                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 890                                 System::jsonExit([intval($args->get(2)), local_user()]);
 891                         } else {
 892                                 item_redirect_after_action($item, $args->get(3));
 893                         }
 894                         break;
 895         }
 896
 897         return $o;
 898 }
 899
 900 /**
 901  * @param int    $id
 902  * @param string $return
 903  * @return string
 904  * @throws HTTPException\InternalServerErrorException
 905  */
 906 function drop_item(int $id, string $return = '')
 907 {
 908         // locate item to be deleted
 909         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 910         $item = Post::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 911
 912         if (!DBA::isResult($item)) {
 913                 notice(DI::l10n()->t('Item not found.'));
 914                 DI::baseUrl()->redirect('network');
 915         }
 916
 917         if ($item['deleted']) {
 918                 return '';
 919         }
 920
 921         $contact_id = 0;
 922
 923         // check if logged in user is either the author or owner of this item
 924         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 925                 $contact_id = $item['contact-id'];
 926         }
 927
 928         if ((local_user() == $item['uid']) || $contact_id) {
 929                 // delete the item
 930                 Item::deleteForUser(['id' => $item['id']], local_user());
 931
 932                 item_redirect_after_action($item, $return);
 933         } else {
 934                 notice(DI::l10n()->t('Permission denied.'));
 935                 DI::baseUrl()->redirect('display/' . $item['guid']);
 936                 //NOTREACHED
 937         }
 938
 939         return '';
 940 }
 941
 942 function item_redirect_after_action($item, $returnUrlHex)
 943 {
 944         $return_url = hex2bin($returnUrlHex);
 945
 946         // removes update_* from return_url to ignore Ajax refresh
 947         $return_url = str_replace("update_", "", $return_url);
 948
 949         // Check if delete a comment
 950         if ($item['gravity'] == GRAVITY_COMMENT) {
 951                 if (!empty($item['parent'])) {
 952                         $parentitem = Post::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 953                 }
 954
 955                 // Return to parent guid
 956                 if (!empty($parentitem)) {
 957                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 958                         //NOTREACHED
 959                 } // In case something goes wrong
 960                 else {
 961                         DI::baseUrl()->redirect('network');
 962                         //NOTREACHED
 963                 }
 964         } else {
 965                 // if unknown location or deleting top level post called from display
 966                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 967                         DI::baseUrl()->redirect('network');
 968                         //NOTREACHED
 969                 } else {
 970                         DI::baseUrl()->redirect($return_url);
 971                         //NOTREACHED
 972                 }
 973         }
 974 }