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\Notification;
  49 use Friendica\Model\Photo;
  50 use Friendica\Model\Post;
  51 use Friendica\Model\Tag;
  52 use Friendica\Model\User;
  53 use Friendica\Network\HTTPException;
  54 use Friendica\Object\EMail\ItemCCEMail;
  55 use Friendica\Protocol\Activity;
  56 use Friendica\Protocol\Diaspora;
  57 use Friendica\Security\Security;
  58 use Friendica\Util\DateTimeFormat;
  59 use Friendica\Util\ParseUrl;
  60 use Friendica\Worker\Delivery;
  61
  62 function item_post(App $a) {
  63         if (!Session::isAuthenticated()) {
  64                 throw new HTTPException\ForbiddenException();
  65         }
  66
  67         $uid = local_user();
  68
  69         if (!empty($_REQUEST['dropitems'])) {
  70                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  71                 foreach ($arr_drop as $item) {
  72                         Item::deleteForUser(['id' => $item], $uid);
  73                 }
  74
  75                 $json = ['success' => 1];
  76                 System::jsonExit($json);
  77         }
  78
  79         Hook::callAll('post_local_start', $_REQUEST);
  80
  81         Logger::debug('postvars', ['_REQUEST' => $_REQUEST]);
  82
  83         $api_source = $_REQUEST['api_source'] ?? false;
  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         $parent_item_id = intval($_REQUEST['parent'] ?? 0);
 104         $thr_parent_uri = trim($_REQUEST['parent_uri'] ?? '');
 105
 106         $parent_item = null;
 107         $toplevel_item = null;
 108         $toplevel_item_id = 0;
 109         $toplevel_user_id = null;
 110
 111         $objecttype = null;
 112         $profile_uid = ($_REQUEST['profile_uid'] ?? 0) ?: local_user();
 113         $posttype = ($_REQUEST['post_type'] ?? '') ?: Item::PT_ARTICLE;
 114
 115         if ($parent_item_id || $thr_parent_uri) {
 116                 if ($parent_item_id) {
 117                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item_id]);
 118                 } elseif ($thr_parent_uri) {
 119                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['uri' => $thr_parent_uri, 'uid' => $profile_uid]);
 120                 }
 121
 122                 // if this isn't the top-level parent of the conversation, find it
 123                 if (DBA::isResult($parent_item)) {
 124                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 125                         $thr_parent_uri = $parent_item['uri'];
 126                         $toplevel_item = $parent_item;
 127
 128                         if ($parent_item['gravity'] != GRAVITY_PARENT) {
 129                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 130                         }
 131                 }
 132
 133                 if (!DBA::isResult($toplevel_item)) {
 134                         notice(DI::l10n()->t('Unable to locate original post.'));
 135                         if ($return_path) {
 136                                 DI::baseUrl()->redirect($return_path);
 137                         }
 138                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 139                 }
 140
 141                 // When commenting on a public post then store the post for the current user
 142                 // This enables interaction like starring and saving into folders
 143                 if ($toplevel_item['uid'] == 0) {
 144                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], local_user());
 145                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
 146                         if ($stored) {
 147                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $stored]);
 148                         }
 149                 }
 150
 151                 $toplevel_item_id = $toplevel_item['id'];
 152                 $toplevel_user_id = $toplevel_item['uid'];
 153
 154                 $objecttype = Activity\ObjectType::COMMENT;
 155         }
 156
 157         if ($toplevel_item_id) {
 158                 Logger::info('mod_item: item_post', ['parent' => $toplevel_item_id]);
 159         }
 160
 161         $post_id     = intval($_REQUEST['post_id'] ?? 0);
 162         $app         = strip_tags($_REQUEST['source'] ?? '');
 163         $extid       = strip_tags($_REQUEST['extid'] ?? '');
 164         $object      = $_REQUEST['object'] ?? '';
 165
 166         // Don't use "defaults" here. It would turn 0 to 1
 167         if (!isset($_REQUEST['wall'])) {
 168                 $wall = 1;
 169         } else {
 170                 $wall = $_REQUEST['wall'];
 171         }
 172
 173         // Ensure that the user id in a thread always stay the same
 174         if (!is_null($toplevel_user_id) && in_array($toplevel_user_id, [local_user(), 0])) {
 175                 $profile_uid = $toplevel_user_id;
 176         }
 177
 178         // Allow commenting if it is an answer to a public post
 179         $allow_comment = local_user() && ($profile_uid == 0) && $toplevel_item_id && in_array($toplevel_item['network'], Protocol::FEDERATED);
 180
 181         // Now check that valid personal details have been provided
 182         if (!Security::canWriteToUserWall($profile_uid) && !$allow_comment) {
 183                 notice(DI::l10n()->t('Permission denied.'));
 184                 if ($return_path) {
 185                         DI::baseUrl()->redirect($return_path);
 186                 }
 187
 188                 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 189         }
 190
 191         // Init post instance
 192         $orig_post = null;
 193
 194         // is this an edited post?
 195         if ($post_id > 0) {
 196                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 197         }
 198
 199         $user = User::getById($profile_uid, ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid']);
 200         if (!DBA::isResult($user) && !$toplevel_item_id) {
 201                 return 0;
 202         }
 203
 204         $categories = '';
 205         $postopts = '';
 206         $emailcc = '';
 207         $body = $_REQUEST['body'] ?? '';
 208         $has_attachment = $_REQUEST['has_attachment'] ?? 0;
 209
 210         // If we have a speparate attachment, we need to add it to the body.
 211         if (!empty($has_attachment)) {
 212                 $attachment_type  = $_REQUEST['attachment_type'] ??  '';
 213                 $attachment_title = $_REQUEST['attachment_title'] ?? '';
 214                 $attachment_text  = $_REQUEST['attachment_text'] ??  '';
 215
 216                 $attachment_url     = hex2bin($_REQUEST['attachment_url'] ??     '');
 217                 $attachment_img_src = hex2bin($_REQUEST['attachment_img_src'] ?? '');
 218
 219                 $attachment_img_width  = $_REQUEST['attachment_img_width'] ??  0;
 220                 $attachment_img_height = $_REQUEST['attachment_img_height'] ?? 0;
 221
 222                 // Fetch the basic attachment data
 223                 $attachment = ParseUrl::getSiteinfoCached($attachment_url);
 224                 unset($attachment['keywords']);
 225
 226                 // Overwrite the basic data with possible changes from the frontend
 227                 $attachment['type'] = $attachment_type;
 228                 $attachment['title'] = $attachment_title;
 229                 $attachment['text'] = $attachment_text;
 230                 $attachment['url'] = $attachment_url;
 231
 232                 if (!empty($attachment_img_src)) {
 233                         $attachment['images'] = [
 234                                 0 => [
 235                                         'src'    => $attachment_img_src,
 236                                         'width'  => $attachment_img_width,
 237                                         'height' => $attachment_img_height
 238                                 ]
 239                         ];
 240                 } else {
 241                         unset($attachment['images']);
 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                 $categories        = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 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                 $aclFormatter = DI::aclFormatter();
 271                 $str_contact_allow = isset($_REQUEST['contact_allow']) ? $aclFormatter->toString($_REQUEST['contact_allow']) : $user['allow_cid'] ?? '';
 272                 $str_group_allow   = isset($_REQUEST['group_allow'])   ? $aclFormatter->toString($_REQUEST['group_allow'])   : $user['allow_gid'] ?? '';
 273                 $str_contact_deny  = isset($_REQUEST['contact_deny'])  ? $aclFormatter->toString($_REQUEST['contact_deny'])  : $user['deny_cid']  ?? '';
 274                 $str_group_deny    = isset($_REQUEST['group_deny'])    ? $aclFormatter->toString($_REQUEST['group_deny'])    : $user['deny_gid']  ?? '';
 275
 276                 $visibility = $_REQUEST['visibility'] ?? '';
 277                 if ($visibility === 'public') {
 278                         // The ACL selector introduced in version 2019.12 sends ACL input data even when the Public visibility is selected
 279                         $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = '';
 280                 } else if ($visibility === 'custom') {
 281                         // Since we know from the visibility parameter the item should be private, we have to prevent the empty ACL
 282                         // case that would make it public. So we always append the author's contact id to the allowed contacts.
 283                         // See https://github.com/friendica/friendica/issues/9672
 284                         $str_contact_allow .= $aclFormatter->toString(Contact::getPublicIdByUserId($uid));
 285                 }
 286
 287                 $title             = trim($_REQUEST['title']    ?? '');
 288                 $location          = trim($_REQUEST['location'] ?? '');
 289                 $coord             = trim($_REQUEST['coord']    ?? '');
 290                 $verb              = trim($_REQUEST['verb']     ?? '');
 291                 $emailcc           = trim($_REQUEST['emailcc']  ?? '');
 292                 $body              = trim($body);
 293                 $network           = trim(($_REQUEST['network']  ?? '') ?: Protocol::DFRN);
 294                 $guid              = System::createUUID();
 295
 296                 $postopts = $_REQUEST['postopts'] ?? '';
 297
 298                 if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 299                         $private = Item::PRIVATE;
 300                 } elseif (DI::pConfig()->get($profile_uid, 'system', 'unlisted')) {
 301                         $private = Item::UNLISTED;
 302                 } else {
 303                         $private = Item::PUBLIC;
 304                 }
 305
 306                 // If this is a comment, set the permissions from the parent.
 307
 308                 if ($toplevel_item) {
 309                         // for non native networks use the network of the original post as network of the item
 310                         if (($toplevel_item['network'] != Protocol::DIASPORA)
 311                                 && ($toplevel_item['network'] != Protocol::OSTATUS)
 312                                 && ($network == "")) {
 313                                 $network = $toplevel_item['network'];
 314                         }
 315
 316                         $str_contact_allow = $toplevel_item['allow_cid'] ?? '';
 317                         $str_group_allow   = $toplevel_item['allow_gid'] ?? '';
 318                         $str_contact_deny  = $toplevel_item['deny_cid'] ?? '';
 319                         $str_group_deny    = $toplevel_item['deny_gid'] ?? '';
 320                         $private           = $toplevel_item['private'];
 321
 322                         $wall              = $toplevel_item['wall'];
 323                 }
 324
 325                 $pubmail_enabled = ($_REQUEST['pubmail_enable'] ?? false) && !$private;
 326
 327                 // if using the API, we won't see pubmail_enable - figure out if it should be set
 328                 if ($api_source && $profile_uid && $profile_uid == local_user() && !$private) {
 329                         if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
 330                                 $pubmail_enabled = DBA::exists('mailacct', ["`uid` = ? AND `server` != ? AND `pubmail`", local_user(), '']);
 331                         }
 332                 }
 333
 334                 if (!strlen($body)) {
 335                         if ($preview) {
 336                                 System::jsonExit(['preview' => '']);
 337                         }
 338
 339                         notice(DI::l10n()->t('Empty post discarded.'));
 340                         if ($return_path) {
 341                                 DI::baseUrl()->redirect($return_path);
 342                         }
 343
 344                         throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 345                 }
 346         }
 347
 348         if (!empty($categories)) {
 349                 // get the "fileas" tags for this post
 350                 $filedas = FileTag::fileToArray($categories);
 351         }
 352
 353         $categories = FileTag::listToFile(trim($_REQUEST['category'] ?? ''), 'category');
 354
 355         if (!empty($filedas) && is_array($filedas)) {
 356                 // append the fileas stuff to the new categories list
 357                 $categories .= FileTag::arrayToFile($filedas);
 358         }
 359
 360         // get contact info for poster
 361
 362         $author = null;
 363         $self   = false;
 364         $contact_id = 0;
 365
 366         if (local_user() && ((local_user() == $profile_uid) || $allow_comment)) {
 367                 $self = true;
 368                 $author = DBA::selectFirst('contact', [], ['uid' => local_user(), 'self' => true]);
 369         } elseif (!empty(Session::getRemoteContactID($profile_uid))) {
 370                 $author = DBA::selectFirst('contact', [], ['id' => Session::getRemoteContactID($profile_uid)]);
 371         }
 372
 373         if (DBA::isResult($author)) {
 374                 $contact_id = $author['id'];
 375         }
 376
 377         // get contact info for owner
 378         if ($profile_uid == local_user() || $allow_comment) {
 379                 $contact_record = $author ?: [];
 380         } else {
 381                 $contact_record = DBA::selectFirst('contact', [], ['uid' => $profile_uid, 'self' => true]) ?: [];
 382         }
 383
 384         // Look for any tags and linkify them
 385         $inform   = '';
 386         $private_forum = false;
 387         $private_id = null;
 388         $only_to_forum = false;
 389         $forum_contact = [];
 390
 391         $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network, $str_contact_allow, &$inform, &$private_forum, &$private_id, &$only_to_forum, &$forum_contact) {
 392                 $tags = BBCode::getTags($body);
 393
 394                 $tagged = [];
 395
 396                 foreach ($tags as $tag) {
 397                         $tag_type = substr($tag, 0, 1);
 398
 399                         if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
 400                                 continue;
 401                         }
 402
 403                         /* If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
 404                          * Robert Johnson should be first in the $tags array
 405                          */
 406                         foreach ($tagged as $nextTag) {
 407                                 if (stristr($nextTag, $tag . ' ')) {
 408                                         continue 2;
 409                                 }
 410                         }
 411
 412                         $success = ItemHelper::replaceTag($body, $inform, local_user() ? local_user() : $profile_uid, $tag, $network);
 413                         if ($success['replaced']) {
 414                                 $tagged[] = $tag;
 415                         }
 416                         // When the forum is private or the forum is addressed with a "!" make the post private
 417                         if (!empty($success['contact']['prv']) || ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION])) {
 418                                 $private_forum = $success['contact']['prv'];
 419                                 $only_to_forum = ($tag_type == Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION]);
 420                                 $private_id = $success['contact']['id'];
 421                                 $forum_contact = $success['contact'];
 422                         } elseif (!empty($success['contact']['forum']) && ($str_contact_allow == '<' . $success['contact']['id'] . '>')) {
 423                                 $private_forum = false;
 424                                 $only_to_forum = true;
 425                                 $private_id = $success['contact']['id'];
 426                                 $forum_contact = $success['contact'];
 427                         }
 428                 }
 429
 430                 return $body;
 431         });
 432
 433         $original_contact_id = $contact_id;
 434
 435         if (!$toplevel_item_id && !empty($forum_contact) && ($private_forum || $only_to_forum)) {
 436                 // we tagged a forum in a top level post. Now we change the post
 437                 $private = $private_forum;
 438
 439                 $str_group_allow = '';
 440                 $str_contact_deny = '';
 441                 $str_group_deny = '';
 442                 if ($private_forum) {
 443                         $str_contact_allow = '<' . $private_id . '>';
 444                 } else {
 445                         $str_contact_allow = '';
 446                 }
 447                 $contact_id = $private_id;
 448                 $contact_record = $forum_contact;
 449                 $_REQUEST['origin'] = false;
 450                 $wall = 0;
 451         }
 452
 453         /*
 454          * When a photo was uploaded into the message using the (profile wall) ajax
 455          * uploader, The permissions are initially set to disallow anybody but the
 456          * owner from seeing it. This is because the permissions may not yet have been
 457          * set for the post. If it's private, the photo permissions should be set
 458          * appropriately. But we didn't know the final permissions on the post until
 459          * now. So now we'll look for links of uploaded messages that are in the
 460          * post and set them to the same permissions as the post itself.
 461          */
 462
 463         $match = null;
 464
 465         if (!$preview && Photo::setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
 466                 $objecttype = Activity\ObjectType::IMAGE;
 467         }
 468
 469         /*
 470          * Next link in any attachment references we find in the post.
 471          */
 472         $match = [];
 473
 474         /// @todo these lines should be moved to Model/Attach (Once it exists)
 475         if (!$preview && preg_match_all("/\[attachment\](.*?)\[\/attachment\]/", $body, $match)) {
 476                 $attaches = $match[1];
 477                 if (count($attaches)) {
 478                         foreach ($attaches as $attach) {
 479                                 // Ensure to only modify attachments that you own
 480                                 $srch = '<' . intval($original_contact_id) . '>';
 481
 482                                 $condition = ['allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
 483                                                 'id' => $attach];
 484                                 if (!Attach::exists($condition)) {
 485                                         continue;
 486                                 }
 487
 488                                 $fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
 489                                                 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
 490                                 $condition = ['id' => $attach];
 491                                 Attach::update($fields, $condition);
 492                         }
 493                 }
 494         }
 495
 496         // embedded bookmark or attachment in post? set bookmark flag
 497
 498         $data = BBCode::getAttachmentData($body);
 499         $match = [];
 500         if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $body, $match, PREG_SET_ORDER) || isset($data["type"]))
 501                 && ($posttype != Item::PT_PERSONAL_NOTE)) {
 502                 $posttype = Item::PT_PAGE;
 503                 $objecttype =  Activity\ObjectType::BOOKMARK;
 504         }
 505
 506         $body = DI::bbCodeVideo()->transform($body);
 507
 508         $body = BBCode::scaleExternalImages($body);
 509
 510         // Setting the object type if not defined before
 511         if (!$objecttype) {
 512                 $objecttype = Activity\ObjectType::NOTE; // Default value
 513                 $objectdata = BBCode::getAttachedData($body);
 514
 515                 if ($objectdata["type"] == "link") {
 516                         $objecttype = Activity\ObjectType::BOOKMARK;
 517                 } elseif ($objectdata["type"] == "video") {
 518                         $objecttype = Activity\ObjectType::VIDEO;
 519                 } elseif ($objectdata["type"] == "photo") {
 520                         $objecttype = Activity\ObjectType::IMAGE;
 521                 }
 522
 523         }
 524
 525         $attachments = '';
 526         $match = [];
 527
 528         if (preg_match_all('/(\[attachment\]([0-9]+)\[\/attachment\])/',$body,$match)) {
 529                 foreach ($match[2] as $mtch) {
 530                         $fields = ['id', 'filename', 'filesize', 'filetype'];
 531                         $attachment = Attach::selectFirst($fields, ['id' => $mtch]);
 532                         if ($attachment !== false) {
 533                                 if (strlen($attachments)) {
 534                                         $attachments .= ',';
 535                                 }
 536                                 $attachments .= Post\Media::getAttachElement(DI::baseUrl() . '/attach/' . $attachment['id'],
 537                                         $attachment['filesize'], $attachment['filetype'], $attachment['filename'] ?? '');
 538                         }
 539                         $body = str_replace($match[1],'',$body);
 540                 }
 541         }
 542
 543         if (!strlen($verb)) {
 544                 $verb = Activity::POST;
 545         }
 546
 547         if ($network == "") {
 548                 $network = Protocol::DFRN;
 549         }
 550
 551         $gravity = ($toplevel_item_id ? GRAVITY_COMMENT : GRAVITY_PARENT);
 552
 553         // even if the post arrived via API we are considering that it
 554         // originated on this site by default for determining relayability.
 555
 556         // Don't use "defaults" here. It would turn 0 to 1
 557         if (!isset($_REQUEST['origin'])) {
 558                 $origin = 1;
 559         } else {
 560                 $origin = $_REQUEST['origin'];
 561         }
 562
 563         $uri = Item::newURI($api_source ? $profile_uid : $uid, $guid);
 564
 565         // Fallback so that we alway have a parent uri
 566         if (!$thr_parent_uri || !$toplevel_item_id) {
 567                 $thr_parent_uri = $uri;
 568         }
 569
 570         $datarray = [];
 571         $datarray['uid']           = $profile_uid;
 572         $datarray['wall']          = $wall;
 573         $datarray['gravity']       = $gravity;
 574         $datarray['network']       = $network;
 575         $datarray['contact-id']    = $contact_id;
 576         $datarray['owner-name']    = $contact_record['name'] ?? '';
 577         $datarray['owner-link']    = $contact_record['url'] ?? '';
 578         $datarray['owner-avatar']  = $contact_record['thumb'] ?? '';
 579         $datarray['owner-id']      = Contact::getIdForURL($datarray['owner-link']);
 580         $datarray['author-name']   = $author['name'];
 581         $datarray['author-link']   = $author['url'];
 582         $datarray['author-avatar'] = $author['thumb'];
 583         $datarray['author-id']     = Contact::getIdForURL($datarray['author-link']);
 584         $datarray['created']       = DateTimeFormat::utcNow();
 585         $datarray['edited']        = DateTimeFormat::utcNow();
 586         $datarray['commented']     = DateTimeFormat::utcNow();
 587         $datarray['received']      = DateTimeFormat::utcNow();
 588         $datarray['changed']       = DateTimeFormat::utcNow();
 589         $datarray['extid']         = $extid;
 590         $datarray['guid']          = $guid;
 591         $datarray['uri']           = $uri;
 592         $datarray['title']         = $title;
 593         $datarray['body']          = $body;
 594         $datarray['app']           = $app;
 595         $datarray['location']      = $location;
 596         $datarray['coord']         = $coord;
 597         $datarray['file']          = $categories;
 598         $datarray['inform']        = $inform;
 599         $datarray['verb']          = $verb;
 600         $datarray['post-type']     = $posttype;
 601         $datarray['object-type']   = $objecttype;
 602         $datarray['allow_cid']     = $str_contact_allow;
 603         $datarray['allow_gid']     = $str_group_allow;
 604         $datarray['deny_cid']      = $str_contact_deny;
 605         $datarray['deny_gid']      = $str_group_deny;
 606         $datarray['private']       = $private;
 607         $datarray['pubmail']       = $pubmail_enabled;
 608         $datarray['attach']        = $attachments;
 609
 610         $datarray['thr-parent']    = $thr_parent_uri;
 611
 612         $datarray['postopts']      = $postopts;
 613         $datarray['origin']        = $origin;
 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_DIRECT;
 629         $datarray['direction'] = Conversation::PUSH;
 630
 631         $conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $datarray['thr-parent']]);
 632         if (DBA::isResult($conversation)) {
 633                 if ($conversation['conversation-uri'] != '') {
 634                         $datarray['conversation-uri'] = $conversation['conversation-uri'];
 635                 }
 636                 if ($conversation['conversation-href'] != '') {
 637                         $datarray['conversation-href'] = $conversation['conversation-href'];
 638                 }
 639         }
 640
 641         if ($orig_post) {
 642                 $datarray['edit'] = true;
 643         } else {
 644                 // If this was a share, add missing data here
 645                 $datarray = Item::addShareDataFromOriginal($datarray);
 646
 647                 $datarray['edit'] = false;
 648         }
 649
 650         // Check for hashtags in the body and repair or add hashtag links
 651         if ($preview || $orig_post) {
 652                 $datarray['body'] = Item::setHashtags($datarray['body']);
 653         }
 654
 655         // preview mode - prepare the body for display and send it via json
 656         if ($preview) {
 657                 // We set the datarray ID to -1 because in preview mode the dataray
 658                 // doesn't have an ID.
 659                 $datarray["id"] = -1;
 660                 $datarray["uri-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' => $post_id]);
 700
 701                 if ($return_path) {
 702                         DI::baseUrl()->redirect($return_path);
 703                 }
 704
 705                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 706         }
 707
 708         unset($datarray['edit']);
 709         unset($datarray['self']);
 710         unset($datarray['api_source']);
 711
 712         if ($origin) {
 713                 $signed = Diaspora::createCommentSignature($uid, $datarray);
 714                 if (!empty($signed)) {
 715                         $datarray['diaspora_signed_text'] = json_encode($signed);
 716                 }
 717         }
 718
 719         $post_id = Item::insert($datarray);
 720
 721         if (!$post_id) {
 722                 notice(DI::l10n()->t('Item wasn\'t stored.'));
 723                 if ($return_path) {
 724                         DI::baseUrl()->redirect($return_path);
 725                 }
 726
 727                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 728         }
 729
 730         $datarray = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 731
 732         if (!DBA::isResult($datarray)) {
 733                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 734                 if ($return_path) {
 735                         DI::baseUrl()->redirect($return_path);
 736                 }
 737
 738                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 739         }
 740
 741         Tag::storeFromBody($datarray['uri-id'], $datarray['body']);
 742
 743         if (!\Friendica\Content\Feature::isEnabled($uid, 'explicit_mentions') && ($datarray['gravity'] == GRAVITY_COMMENT)) {
 744                 Tag::createImplicitMentions($datarray['uri-id'], $datarray['thr-parent-id']);
 745         }
 746
 747         // These notifications are sent if someone else is commenting other your wall
 748         if ($contact_record != $author) {
 749                 if ($toplevel_item_id) {
 750                         notification([
 751                                 'type'  => Notification\Type::COMMENT,
 752                                 'otype' => Notification\ObjectType::ITEM,
 753                                 'verb'  => Activity::POST,
 754                                 'uid'   => $profile_uid,
 755                                 'cid'   => $datarray['author-id'],
 756                                 'item'  => $datarray,
 757                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 758                         ]);
 759                 } elseif (empty($forum_contact)) {
 760                         notification([
 761                                 'type'  => Notification\Type::WALL,
 762                                 'otype' => Notification\ObjectType::ITEM,
 763                                 'verb'  => Activity::POST,
 764                                 'uid'   => $profile_uid,
 765                                 'cid'   => $datarray['author-id'],
 766                                 'item'  => $datarray,
 767                                 'link'  => DI::baseUrl() . '/display/' . urlencode($datarray['guid']),
 768                         ]);
 769                 }
 770         }
 771
 772         Hook::callAll('post_local_end', $datarray);
 773
 774         if (strlen($emailcc) && $profile_uid == local_user()) {
 775                 $recipients = explode(',', $emailcc);
 776                 if (count($recipients)) {
 777                         foreach ($recipients as $recipient) {
 778                                 $address = trim($recipient);
 779                                 if (!strlen($address)) {
 780                                         continue;
 781                                 }
 782                                 DI::emailer()->send(new ItemCCEMail(DI::app(), DI::l10n(), DI::baseUrl(),
 783                                         $datarray, $address, $author['thumb'] ?? ''));
 784                         }
 785                 }
 786         }
 787
 788         // When we are doing some forum posting via ! we have to start the notifier manually.
 789         // These kind of posts don't initiate the notifier call in the item class.
 790         if ($only_to_forum) {
 791                 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => false], "Notifier", Delivery::POST, (int)$datarray['uri-id'], (int)$datarray['uid']);
 792         }
 793
 794         Logger::info('post_complete');
 795
 796         if ($api_source) {
 797                 return $post_id;
 798         }
 799
 800         item_post_return(DI::baseUrl(), $api_source, $return_path);
 801         // NOTREACHED
 802 }
 803
 804 function item_post_return($baseurl, $api_source, $return_path)
 805 {
 806         if ($api_source) {
 807                 return;
 808         }
 809
 810         if ($return_path) {
 811                 DI::baseUrl()->redirect($return_path);
 812         }
 813
 814         $json = ['success' => 1];
 815         if (!empty($_REQUEST['jsreload'])) {
 816                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 817         }
 818
 819         Logger::info('post_json', ['json' => $json]);
 820
 821         System::jsonExit($json);
 822 }
 823
 824 function item_content(App $a)
 825 {
 826         if (!Session::isAuthenticated()) {
 827                 throw new HTTPException\UnauthorizedException();
 828         }
 829
 830         $args = DI::args();
 831
 832         if (!$args->has(3)) {
 833                 throw new HTTPException\BadRequestException();
 834         }
 835
 836         $o = '';
 837         switch ($args->get(1)) {
 838                 case 'drop':
 839                         if (DI::mode()->isAjax()) {
 840                                 Item::deleteForUser(['id' => $args->get(2)], local_user());
 841                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 842                                 System::jsonExit([intval($args->get(2)), local_user()]);
 843                         } else {
 844                                 if (!empty($args->get(3))) {
 845                                         $o = drop_item($args->get(2), $args->get(3));
 846                                 } else {
 847                                         $o = drop_item($args->get(2));
 848                                 }
 849                         }
 850                         break;
 851                 case 'block':
 852                         $item = Post::selectFirstForUser(local_user(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 853                         if (empty($item['author-id'])) {
 854                                 throw new HTTPException\NotFoundException('Item not found');
 855                         }
 856
 857                         Contact\User::setBlocked($item['author-id'], local_user(), true);
 858
 859                         if (DI::mode()->isAjax()) {
 860                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 861                                 System::jsonExit([intval($args->get(2)), local_user()]);
 862                         } else {
 863                                 item_redirect_after_action($item, $args->get(3));
 864                         }
 865                         break;
 866         }
 867
 868         return $o;
 869 }
 870
 871 /**
 872  * @param int    $id
 873  * @param string $return
 874  * @return string
 875  * @throws HTTPException\InternalServerErrorException
 876  */
 877 function drop_item(int $id, string $return = '')
 878 {
 879         // locate item to be deleted
 880         $fields = ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'];
 881         $item = Post::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 882
 883         if (!DBA::isResult($item)) {
 884                 notice(DI::l10n()->t('Item not found.'));
 885                 DI::baseUrl()->redirect('network');
 886         }
 887
 888         if ($item['deleted']) {
 889                 return '';
 890         }
 891
 892         $contact_id = 0;
 893
 894         // check if logged in user is either the author or owner of this item
 895         if (Session::getRemoteContactID($item['uid']) == $item['contact-id']) {
 896                 $contact_id = $item['contact-id'];
 897         }
 898
 899         if ((local_user() == $item['uid']) || $contact_id) {
 900                 // delete the item
 901                 Item::deleteForUser(['id' => $item['id']], local_user());
 902
 903                 item_redirect_after_action($item, $return);
 904         } else {
 905                 notice(DI::l10n()->t('Permission denied.'));
 906                 DI::baseUrl()->redirect('display/' . $item['guid']);
 907                 //NOTREACHED
 908         }
 909
 910         return '';
 911 }
 912
 913 function item_redirect_after_action($item, $returnUrlHex)
 914 {
 915         $return_url = hex2bin($returnUrlHex);
 916
 917         // removes update_* from return_url to ignore Ajax refresh
 918         $return_url = str_replace("update_", "", $return_url);
 919
 920         // Check if delete a comment
 921         if ($item['gravity'] == GRAVITY_COMMENT) {
 922                 if (!empty($item['parent'])) {
 923                         $parentitem = Post::selectFirstForUser(local_user(), ['guid'], ['id' => $item['parent']]);
 924                 }
 925
 926                 // Return to parent guid
 927                 if (!empty($parentitem)) {
 928                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 929                         //NOTREACHED
 930                 } // In case something goes wrong
 931                 else {
 932                         DI::baseUrl()->redirect('network');
 933                         //NOTREACHED
 934                 }
 935         } else {
 936                 // if unknown location or deleting top level post called from display
 937                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 938                         DI::baseUrl()->redirect('network');
 939                         //NOTREACHED
 940                 } else {
 941                         DI::baseUrl()->redirect($return_url);
 942                         //NOTREACHED
 943                 }
 944         }
 945 }