mod/item.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, 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\Text\BBCode;
  33 use Friendica\Core\Hook;
  34 use Friendica\Core\Logger;
  35 use Friendica\Core\Protocol;
  36 use Friendica\Core\System;
  37 use Friendica\Core\Worker;
  38 use Friendica\Database\DBA;
  39 use Friendica\DI;
  40 use Friendica\Model\Contact;
  41 use Friendica\Model\Item;
  42 use Friendica\Model\ItemURI;
  43 use Friendica\Model\Photo;
  44 use Friendica\Model\Post;
  45 use Friendica\Network\HTTPException;
  46 use Friendica\Protocol\Activity;
  47 use Friendica\Util\DateTimeFormat;
  48
  49 function item_post(App $a) {
  50         $uid = DI::userSession()->getLocalUserId();
  51
  52         if (!DI::userSession()->isAuthenticated() || !$uid) {
  53                 throw new HTTPException\ForbiddenException();
  54         }
  55
  56         if (!empty($_REQUEST['dropitems'])) {
  57                 $arr_drop = explode(',', $_REQUEST['dropitems']);
  58                 foreach ($arr_drop as $item) {
  59                         Item::deleteForUser(['id' => $item], $uid);
  60                 }
  61
  62                 $json = ['success' => 1];
  63                 System::jsonExit($json);
  64         }
  65
  66         Hook::callAll('post_local_start', $_REQUEST);
  67
  68         $return_path = $_REQUEST['return'] ?? '';
  69         $preview     = intval($_REQUEST['preview'] ?? 0);
  70
  71         /*
  72          * Check for doubly-submitted posts, and reject duplicates
  73          * Note that we have to ignore previews, otherwise nothing will post
  74          * after it's been previewed
  75          */
  76         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  77                 if (!empty($_SESSION['post-random']) && $_SESSION['post-random'] == $_REQUEST['post_id_random']) {
  78                         Logger::warning('duplicate post');
  79                         item_post_return(DI::baseUrl(), $return_path);
  80                 } else {
  81                         $_SESSION['post-random'] = $_REQUEST['post_id_random'];
  82                 }
  83         }
  84
  85         $post_id = intval($_REQUEST['post_id'] ?? 0);
  86
  87         // is this an edited post?
  88         if ($post_id > 0) {
  89                 $orig_post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
  90         } else {
  91                 $orig_post = null;
  92         }
  93
  94         $emailcc = trim($_REQUEST['emailcc']  ?? '');
  95
  96         $post = ['uid' => $uid];
  97
  98         $post = DI::contentItem()->initializePost($post);
  99
 100         $post['edit']       = $orig_post;
 101         $post['self']       = true;
 102         $post['api_source'] = false;
 103         $post['file']       = '';
 104         $post['attach']     = '';
 105         $post['inform']     = '';
 106         $post['postopts']   = '';
 107         $post['wall']       = $_REQUEST['wall'] ?? true;
 108         $post['post-type']  = $_REQUEST['post_type'] ?? '';
 109         $post['title']      = trim($_REQUEST['title'] ?? '');
 110         $post['body']       = $_REQUEST['body'] ?? '';
 111         $post['location']   = trim($_REQUEST['location'] ?? '');
 112         $post['coord']      = trim($_REQUEST['coord'] ?? '');
 113         $post['parent']     = intval($_REQUEST['parent'] ?? 0);
 114         $post['pubmail']    = $_REQUEST['pubmail_enable'] ?? false;
 115         $post['created']    = $_REQUEST['created_at'] ?? DateTimeFormat::utcNow();
 116         $post['edited']     = $post['changed'] = $post['commented'] = $post['created'];
 117         $post['app']        = '';
 118
 119         if ($post['parent']) {
 120                 if ($post['parent']) {
 121                         $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post['parent']]);
 122                 }
 123
 124                 // if this isn't the top-level parent of the conversation, find it
 125                 if (DBA::isResult($parent_item)) {
 126                         // The URI and the contact is taken from the direct parent which needn't to be the top parent
 127                         $post['thr-parent'] = $parent_item['uri'];
 128                         $toplevel_item = $parent_item;
 129
 130                         if ($parent_item['gravity'] != Item::GRAVITY_PARENT) {
 131                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $toplevel_item['parent']]);
 132                         }
 133                 }
 134
 135                 if (!DBA::isResult($toplevel_item)) {
 136                         DI::sysmsg()->addNotice(DI::l10n()->t('Unable to locate original post.'));
 137                         if ($return_path) {
 138                                 DI::baseUrl()->redirect($return_path);
 139                         }
 140                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 141                 }
 142
 143                 // When commenting on a public post then store the post for the current user
 144                 // This enables interaction like starring and saving into folders
 145                 if ($toplevel_item['uid'] == 0) {
 146                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], $post['uid'], ['post-reason' => Item::PR_ACTIVITY]);
 147                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $post['uid'], 'stored' => $stored]);
 148                         if ($stored) {
 149                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $stored]);
 150                         }
 151                 }
 152
 153                 $post['parent']      = $toplevel_item['id'];
 154                 $post['gravity']     = Item::GRAVITY_COMMENT;
 155                 $post['wall']        = $toplevel_item['wall'];
 156         } else {
 157                 $parent_item         = [];
 158                 $post['parent']      = 0;
 159                 $post['gravity']     = Item::GRAVITY_PARENT;
 160                 $post['thr-parent']  = $post['uri'];
 161         }
 162
 163         $post = DI::contentItem()->getACL($post, $parent_item, $_REQUEST);
 164
 165         $post['pubmail'] = $post['pubmail'] && !$post['private'];
 166
 167         if (!empty($orig_post)) {
 168                 $post['file'] = Post\Category::getTextByURIId($orig_post['uri-id'], $orig_post['uid']);
 169         }
 170
 171         $post = DI::contentItem()->addCategories($post, $_REQUEST['category'] ?? '');
 172
 173         if (!$preview) {
 174                 if (Photo::setPermissionFromBody($post['body'], $post['uid'], $post['contact-id'], $post['allow_cid'], $post['allow_gid'], $post['deny_cid'], $post['deny_gid'])) {
 175                         $post['object-type'] = Activity\ObjectType::IMAGE;
 176                 }
 177
 178                 $post = DI::contentItem()->moveAttachmentsFromBodyToAttach($post);
 179         }
 180
 181         // Add the attachment to the body.
 182         if (!empty($_REQUEST['has_attachment'])) {
 183                 $post['body'] .= DI::contentItem()->storeAttachmentFromRequest($_REQUEST);
 184         }
 185
 186         $post = DI::contentItem()->finalizePost($post);
 187
 188         if (!strlen($post['body'])) {
 189                 if ($preview) {
 190                         System::jsonExit(['preview' => '']);
 191                 }
 192
 193                 DI::sysmsg()->addNotice(DI::l10n()->t('Empty post discarded.'));
 194                 if ($return_path) {
 195                         DI::baseUrl()->redirect($return_path);
 196                 }
 197
 198                 throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 199         }
 200
 201         // preview mode - prepare the body for display and send it via json
 202         if ($preview) {
 203                 // We have to preset some fields, so that the conversation can be displayed
 204                 $post['id']             = -1;
 205                 $post['uri-id']         = -1;
 206                 $post['author-network'] = Protocol::DFRN;
 207                 $post['author-updated'] = '';
 208                 $post['author-gsid']    = 0;
 209                 $post['author-uri-id']  = ItemURI::getIdByURI($post['author-link']);
 210                 $post['owner-updated']  = '';
 211                 $post['has-media']      = false;
 212                 $post['quote-uri-id']   = Item::getQuoteUriId($post['body'], $post['uid']);
 213                 $post['body']           = BBCode::removeSharedData(Item::setHashtags($post['body']));
 214                 $post['writable']       = true;
 215
 216                 $o = DI::conversation()->create([$post], 'search', false, true);
 217
 218                 System::jsonExit(['preview' => $o]);
 219         }
 220
 221         Hook::callAll('post_local',$post);
 222
 223         unset($post['edit']);
 224         unset($post['self']);
 225         unset($post['api_source']);
 226
 227         if (!empty($_REQUEST['scheduled_at'])) {
 228                 $scheduled_at = DateTimeFormat::convert($_REQUEST['scheduled_at'], 'UTC', $a->getTimeZone());
 229                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 230                         unset($post['created']);
 231                         unset($post['edited']);
 232                         unset($post['commented']);
 233                         unset($post['received']);
 234                         unset($post['changed']);
 235
 236                         Post\Delayed::add($post['uri'], $post, Worker::PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 237                         item_post_return(DI::baseUrl(), $return_path);
 238                 }
 239         }
 240
 241         if (!empty($post['cancel'])) {
 242                 Logger::info('mod_item: post cancelled by addon.');
 243                 if ($return_path) {
 244                         DI::baseUrl()->redirect($return_path);
 245                 }
 246
 247                 $json = ['cancel' => 1];
 248                 if (!empty($_REQUEST['jsreload'])) {
 249                         $json['reload'] = DI::baseUrl() . '/' . $_REQUEST['jsreload'];
 250                 }
 251
 252                 System::jsonExit($json);
 253         }
 254
 255         if ($orig_post) {
 256                 $fields = [
 257                         'title'        => $post['title'],
 258                         'body'         => $post['body'],
 259                         'attach'       => $post['attach'],
 260                         'file'         => $post['file'],
 261                         'edited'       => DateTimeFormat::utcNow(),
 262                         'changed'      => DateTimeFormat::utcNow()
 263                 ];
 264
 265                 $fields['body'] = Item::setHashtags($fields['body']);
 266
 267                 $quote_uri_id = Item::getQuoteUriId($fields['body'], $post['uid']);
 268                 if (!empty($quote_uri_id)) {
 269                         $fields['quote-uri-id'] = $quote_uri_id;
 270                         $fields['body']         = BBCode::removeSharedData($post['body']);
 271                 }
 272
 273                 Item::update($fields, ['id' => $post_id]);
 274                 Item::updateDisplayCache($orig_post['uri-id']);
 275
 276                 if ($return_path) {
 277                         DI::baseUrl()->redirect($return_path);
 278                 }
 279
 280                 throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 281         }
 282
 283         $post_id = Item::insert($post);
 284         if (!$post_id) {
 285                 DI::sysmsg()->addNotice(DI::l10n()->t('Item wasn\'t stored.'));
 286                 if ($return_path) {
 287                         DI::baseUrl()->redirect($return_path);
 288                 }
 289
 290                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 291         }
 292
 293         $post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 294         if (!DBA::isResult($post)) {
 295                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 296                 if ($return_path) {
 297                         DI::baseUrl()->redirect($return_path);
 298                 }
 299
 300                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 301         }
 302
 303         $recipients = explode(',', $emailcc);
 304
 305         DI::contentItem()->postProcessPost($post, $recipients);
 306
 307         Logger::debug('post_complete');
 308
 309         item_post_return(DI::baseUrl(), $return_path);
 310         // NOTREACHED
 311 }
 312
 313 function item_post_return($baseurl, $return_path)
 314 {
 315         if ($return_path) {
 316                 DI::baseUrl()->redirect($return_path);
 317         }
 318
 319         $json = ['success' => 1];
 320         if (!empty($_REQUEST['jsreload'])) {
 321                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 322         }
 323
 324         Logger::debug('post_json', ['json' => $json]);
 325
 326         System::jsonExit($json);
 327 }
 328
 329 function item_content(App $a)
 330 {
 331         if (!DI::userSession()->isAuthenticated()) {
 332                 throw new HTTPException\UnauthorizedException();
 333         }
 334
 335         $args = DI::args();
 336
 337         if (!$args->has(3)) {
 338                 throw new HTTPException\BadRequestException();
 339         }
 340
 341         $o = '';
 342         switch ($args->get(1)) {
 343                 case 'drop':
 344                         if (DI::mode()->isAjax()) {
 345                                 Item::deleteForUser(['id' => $args->get(2)], DI::userSession()->getLocalUserId());
 346                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 347                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 348                         } else {
 349                                 if (!empty($args->get(3))) {
 350                                         $o = drop_item($args->get(2), $args->get(3));
 351                                 } else {
 352                                         $o = drop_item($args->get(2));
 353                                 }
 354                         }
 355                         break;
 356
 357                 case 'block':
 358                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 359                         if (empty($item['author-id'])) {
 360                                 throw new HTTPException\NotFoundException('Item not found');
 361                         }
 362
 363                         Contact\User::setBlocked($item['author-id'], DI::userSession()->getLocalUserId(), true);
 364
 365                         if (DI::mode()->isAjax()) {
 366                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 367                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 368                         } else {
 369                                 item_redirect_after_action($item, $args->get(3));
 370                         }
 371                         break;
 372         }
 373
 374         return $o;
 375 }
 376
 377 /**
 378  * @param int    $id
 379  * @param string $return
 380  * @return string
 381  * @throws HTTPException\InternalServerErrorException
 382  */
 383 function drop_item(int $id, string $return = ''): string
 384 {
 385         // Locate item to be deleted
 386         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'], ['id' => $id]);
 387
 388         if (!DBA::isResult($item)) {
 389                 DI::sysmsg()->addNotice(DI::l10n()->t('Item not found.'));
 390                 DI::baseUrl()->redirect('network');
 391                 //NOTREACHED
 392         }
 393
 394         if ($item['deleted']) {
 395                 return '';
 396         }
 397
 398         $contact_id = 0;
 399
 400         // check if logged in user is either the author or owner of this item
 401         if (DI::userSession()->getRemoteContactID($item['uid']) == $item['contact-id']) {
 402                 $contact_id = $item['contact-id'];
 403         }
 404
 405         if ((DI::userSession()->getLocalUserId() == $item['uid']) || $contact_id) {
 406                 // delete the item
 407                 Item::deleteForUser(['id' => $item['id']], DI::userSession()->getLocalUserId());
 408
 409                 item_redirect_after_action($item, $return);
 410                 //NOTREACHED
 411         } else {
 412                 Logger::warning('Permission denied.', ['local' => DI::userSession()->getLocalUserId(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 413                 DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
 414                 DI::baseUrl()->redirect('display/' . $item['guid']);
 415                 //NOTREACHED
 416         }
 417
 418         return '';
 419 }
 420
 421 function item_redirect_after_action(array $item, string $returnUrlHex)
 422 {
 423         $return_url = hex2bin($returnUrlHex);
 424
 425         // removes update_* from return_url to ignore Ajax refresh
 426         $return_url = str_replace('update_', '', $return_url);
 427
 428         // Check if delete a comment
 429         if ($item['gravity'] == Item::GRAVITY_COMMENT) {
 430                 if (!empty($item['parent'])) {
 431                         $parentitem = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid'], ['id' => $item['parent']]);
 432                 }
 433
 434                 // Return to parent guid
 435                 if (!empty($parentitem)) {
 436                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 437                         //NOTREACHED
 438                 } // In case something goes wrong
 439                 else {
 440                         DI::baseUrl()->redirect('network');
 441                         //NOTREACHED
 442                 }
 443         } else {
 444                 // if unknown location or deleting top level post called from display
 445                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 446                         DI::baseUrl()->redirect('network');
 447                         //NOTREACHED
 448                 } else {
 449                         DI::baseUrl()->redirect($return_url);
 450                         //NOTREACHED
 451                 }
 452         }
 453 }