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 comments 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\Conversation;
  33 use Friendica\Content\Text\BBCode;
  34 use Friendica\Core\Hook;
  35 use Friendica\Core\Logger;
  36 use Friendica\Core\Protocol;
  37 use Friendica\Core\System;
  38 use Friendica\Core\Worker;
  39 use Friendica\Database\DBA;
  40 use Friendica\DI;
  41 use Friendica\Model\Contact;
  42 use Friendica\Model\Item;
  43 use Friendica\Model\ItemURI;
  44 use Friendica\Model\Post;
  45 use Friendica\Network\HTTPException;
  46 use Friendica\Util\DateTimeFormat;
  47
  48 function item_post(App $a) {
  49         $uid = DI::userSession()->getLocalUserId();
  50
  51         if (!$uid) {
  52                 throw new HTTPException\ForbiddenException();
  53         }
  54
  55         if (!empty($_REQUEST['dropitems'])) {
  56                 item_drop($uid, $_REQUEST['dropitems']);
  57         }
  58
  59         Hook::callAll('post_local_start', $_REQUEST);
  60
  61         $return_path = $_REQUEST['return'] ?? '';
  62         $preview     = intval($_REQUEST['preview'] ?? 0);
  63
  64         /*
  65          * Check for doubly-submitted posts, and reject duplicates
  66          * Note that we have to ignore previews, otherwise nothing will post
  67          * after it's been previewed
  68          */
  69         if (!$preview && !empty($_REQUEST['post_id_random'])) {
  70                 if (DI::session()->get('post-random') == $_REQUEST['post_id_random']) {
  71                         Logger::warning('duplicate post');
  72                         item_post_return(DI::baseUrl(), $return_path);
  73                 } else {
  74                         DI::session()->set('post-random', $_REQUEST['post_id_random']);
  75                 }
  76         }
  77
  78         if (empty($_REQUEST['post_id'])) {
  79                 item_insert($uid, $_REQUEST, $preview, $return_path);
  80         } else {
  81                 item_edit($uid, $_REQUEST, $preview, $return_path);
  82         }
  83 }
  84
  85 function item_drop(int $uid, string $dropitems)
  86 {
  87         $arr_drop = explode(',', $dropitems);
  88         foreach ($arr_drop as $item) {
  89                 Item::deleteForUser(['id' => $item], $uid);
  90         }
  91
  92         System::jsonExit(['success' => 1]);
  93 }
  94
  95 function item_edit(int $uid, array $request, bool $preview, string $return_path)
  96 {
  97         $post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $request['post_id'], 'uid' => $uid]);
  98         if (!DBA::isResult($post)) {
  99                 if ($return_path) {
 100                         DI::sysmsg()->addNotice(DI::l10n()->t('Unable to locate original post.'));
 101                         DI::baseUrl()->redirect($return_path);
 102                 }
 103                 throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 104         }
 105
 106         $post['edit'] = $post;
 107         $post['file'] = Post\Category::getTextByURIId($post['uri-id'], $post['uid']);
 108
 109         Post\Media::deleteByURIId($post['uri-id'], [Post\Media::AUDIO, Post\Media::VIDEO, Post\Media::IMAGE, Post\Media::HTML]);
 110         $post = item_process($post, $request, $preview, $return_path);
 111
 112         $fields = [
 113                 'title'    => $post['title'],
 114                 'body'     => $post['body'],
 115                 'attach'   => $post['attach'],
 116                 'file'     => $post['file'],
 117                 'location' => $post['location'],
 118                 'coord'    => $post['coord'],
 119                 'edited'   => DateTimeFormat::utcNow(),
 120                 'changed'  => DateTimeFormat::utcNow()
 121         ];
 122
 123         $fields['body'] = Item::setHashtags($fields['body']);
 124
 125         $quote_uri_id = Item::getQuoteUriId($fields['body'], $post['uid']);
 126         if (!empty($quote_uri_id)) {
 127                 $fields['quote-uri-id'] = $quote_uri_id;
 128                 $fields['body']         = BBCode::removeSharedData($post['body']);
 129         }
 130
 131         Item::update($fields, ['id' => $post['id']]);
 132         Item::updateDisplayCache($post['uri-id']);
 133
 134         if ($return_path) {
 135                 DI::baseUrl()->redirect($return_path);
 136         }
 137
 138         throw new HTTPException\OKException(DI::l10n()->t('Post updated.'));
 139 }
 140
 141 function item_insert(int $uid, array $request, bool $preview, string $return_path)
 142 {
 143         $post = ['uid' => $uid];
 144         $post = DI::contentItem()->initializePost($post);
 145
 146         $post['edit']      = null;
 147         $post['post-type'] = $request['post_type'] ?? '';
 148         $post['wall']      = $request['wall'] ?? true;
 149         $post['pubmail']   = $request['pubmail_enable'] ?? false;
 150         $post['created']   = $request['created_at'] ?? DateTimeFormat::utcNow();
 151         $post['edited']    = $post['changed'] = $post['commented'] = $post['created'];
 152         $post['app']       = '';
 153         $post['inform']    = '';
 154         $post['postopts']  = '';
 155         $post['file']      = '';
 156
 157         if (!empty($request['parent'])) {
 158                 $parent_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $request['parent']]);
 159                 if ($parent_item) {
 160                         // if this isn't the top-level parent of the conversation, find it
 161                         if ($parent_item['gravity'] != Item::GRAVITY_PARENT) {
 162                                 $toplevel_item = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $parent_item['parent']]);
 163                         } else {
 164                                 $toplevel_item = $parent_item;
 165                         }
 166                 }
 167
 168                 if (empty($toplevel_item)) {
 169                         if ($return_path) {
 170                                 DI::sysmsg()->addNotice(DI::l10n()->t('Unable to locate original post.'));
 171                                 DI::baseUrl()->redirect($return_path);
 172                         }
 173                         throw new HTTPException\NotFoundException(DI::l10n()->t('Unable to locate original post.'));
 174                 }
 175
 176                 // When commenting on a public post then store the post for the current user
 177                 // This enables interaction like starring and saving into folders
 178                 if ($toplevel_item['uid'] == 0) {
 179                         $stored = Item::storeForUserByUriId($toplevel_item['uri-id'], $post['uid'], ['post-reason' => Item::PR_ACTIVITY]);
 180                         Logger::info('Public item stored for user', ['uri-id' => $toplevel_item['uri-id'], 'uid' => $post['uid'], 'stored' => $stored]);
 181                 }
 182
 183                 $post['parent']      = $toplevel_item['id'];
 184                 $post['gravity']     = Item::GRAVITY_COMMENT;
 185                 $post['thr-parent']  = $parent_item['uri'];
 186                 $post['wall']        = $toplevel_item['wall'];
 187         } else {
 188                 $parent_item         = [];
 189                 $post['parent']      = 0;
 190                 $post['gravity']     = Item::GRAVITY_PARENT;
 191                 $post['thr-parent']  = $post['uri'];
 192         }
 193
 194         $post = DI::contentItem()->getACL($post, $parent_item, $request);
 195
 196         $post['pubmail'] = $post['pubmail'] && !$post['private'];
 197
 198         $post = item_process($post, $request, $preview, $return_path);
 199
 200         $post_id = Item::insert($post);
 201         if (!$post_id) {
 202                 if ($return_path) {
 203                         DI::sysmsg()->addNotice(DI::l10n()->t('Item wasn\'t stored.'));
 204                         DI::baseUrl()->redirect($return_path);
 205                 }
 206
 207                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item wasn\'t stored.'));
 208         }
 209
 210         $post = Post::selectFirst(Item::ITEM_FIELDLIST, ['id' => $post_id]);
 211         if (!$post) {
 212                 Logger::error('Item couldn\'t be fetched.', ['post_id' => $post_id]);
 213                 if ($return_path) {
 214                         DI::baseUrl()->redirect($return_path);
 215                 }
 216
 217                 throw new HTTPException\InternalServerErrorException(DI::l10n()->t('Item couldn\'t be fetched.'));
 218         }
 219
 220         $recipients = explode(',', $request['emailcc'] ?? '');
 221
 222         DI::contentItem()->postProcessPost($post, $recipients);
 223
 224         if (($post['private'] == Item::PRIVATE) && ($post['thr-parent-id'] != $post['uri-id'])) {
 225                 DI::contentItem()->copyPermissions($post['thr-parent-id'], $post['uri-id']);
 226         }
 227
 228         Logger::debug('post_complete');
 229
 230         item_post_return(DI::baseUrl(), $return_path);
 231         // NOTREACHED
 232 }
 233
 234 function item_process(array $post, array $request, bool $preview, string $return_path): array
 235 {
 236         $post['self']       = true;
 237         $post['api_source'] = false;
 238         $post['attach']     = '';
 239         $post['title']      = trim($request['title'] ?? '');
 240         $post['body']       = $request['body'] ?? '';
 241         $post['location']   = trim($request['location'] ?? '');
 242         $post['coord']      = trim($request['coord'] ?? '');
 243
 244         $post = DI::contentItem()->addCategories($post, $request['category'] ?? '');
 245
 246         // Add the attachment to the body.
 247         if (!empty($request['has_attachment'])) {
 248                 $post['body'] .= DI::contentItem()->storeAttachmentFromRequest($request);
 249         }
 250
 251         $post = DI::contentItem()->finalizePost($post);
 252
 253         if (!strlen($post['body'])) {
 254                 if ($preview) {
 255                         System::jsonExit(['preview' => '']);
 256                 }
 257
 258                 if ($return_path) {
 259                         DI::sysmsg()->addNotice(DI::l10n()->t('Empty post discarded.'));
 260                         DI::baseUrl()->redirect($return_path);
 261                 }
 262
 263                 throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 264         }
 265
 266         // preview mode - prepare the body for display and send it via json
 267         if ($preview) {
 268                 // We have to preset some fields, so that the conversation can be displayed
 269                 $post['id']             = -1;
 270                 $post['uri-id']         = -1;
 271                 $post['author-network'] = Protocol::DFRN;
 272                 $post['author-updated'] = '';
 273                 $post['author-alias']   = '';
 274                 $post['author-gsid']    = 0;
 275                 $post['author-uri-id']  = ItemURI::getIdByURI($post['author-link']);
 276                 $post['owner-updated']  = '';
 277                 $post['has-media']      = false;
 278                 $post['quote-uri-id']   = Item::getQuoteUriId($post['body'], $post['uid']);
 279                 $post['body']           = BBCode::removeSharedData(Item::setHashtags($post['body']));
 280                 $post['writable']       = true;
 281
 282                 $o = DI::conversation()->render([$post], Conversation::MODE_SEARCH, false, true);
 283
 284                 System::jsonExit(['preview' => $o]);
 285         }
 286
 287         Hook::callAll('post_local',$post);
 288
 289         unset($post['edit']);
 290         unset($post['self']);
 291         unset($post['api_source']);
 292
 293         if (!empty($request['scheduled_at'])) {
 294                 $scheduled_at = DateTimeFormat::convert($request['scheduled_at'], 'UTC', DI::app()->getTimeZone());
 295                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 296                         unset($post['created']);
 297                         unset($post['edited']);
 298                         unset($post['commented']);
 299                         unset($post['received']);
 300                         unset($post['changed']);
 301
 302                         Post\Delayed::add($post['uri'], $post, Worker::PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 303                         item_post_return(DI::baseUrl(), $return_path);
 304                 }
 305         }
 306
 307         if (!empty($post['cancel'])) {
 308                 Logger::info('mod_item: post cancelled by addon.');
 309                 if ($return_path) {
 310                         DI::baseUrl()->redirect($return_path);
 311                 }
 312
 313                 $json = ['cancel' => 1];
 314                 if (!empty($request['jsreload'])) {
 315                         $json['reload'] = DI::baseUrl() . '/' . $request['jsreload'];
 316                 }
 317
 318                 System::jsonExit($json);
 319         }
 320
 321         return $post;
 322 }
 323
 324 function item_post_return($baseurl, $return_path)
 325 {
 326         if ($return_path) {
 327                 DI::baseUrl()->redirect($return_path);
 328         }
 329
 330         $json = ['success' => 1];
 331         if (!empty($_REQUEST['jsreload'])) {
 332                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 333         }
 334
 335         Logger::debug('post_json', ['json' => $json]);
 336
 337         System::jsonExit($json);
 338 }
 339
 340 function item_content(App $a)
 341 {
 342         if (!DI::userSession()->isAuthenticated()) {
 343                 throw new HTTPException\UnauthorizedException();
 344         }
 345
 346         $args = DI::args();
 347
 348         if (!$args->has(2)) {
 349                 throw new HTTPException\BadRequestException();
 350         }
 351
 352         $o = '';
 353         switch ($args->get(1)) {
 354                 case 'drop':
 355                         if (DI::mode()->isAjax()) {
 356                                 Item::deleteForUser(['id' => $args->get(2)], DI::userSession()->getLocalUserId());
 357                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 358                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 359                         } else {
 360                                 if (!empty($args->get(3))) {
 361                                         $o = drop_item($args->get(2), $args->get(3));
 362                                 } else {
 363                                         $o = drop_item($args->get(2));
 364                                 }
 365                         }
 366                         break;
 367
 368                 case 'block':
 369                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 370                         if (empty($item['author-id'])) {
 371                                 throw new HTTPException\NotFoundException('Item not found');
 372                         }
 373
 374                         Contact\User::setBlocked($item['author-id'], DI::userSession()->getLocalUserId(), true);
 375
 376                         if (DI::mode()->isAjax()) {
 377                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 378                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 379                         } else {
 380                                 item_redirect_after_action($item, $args->get(3));
 381                         }
 382                         break;
 383
 384                 case 'ignore':
 385                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 386                         if (empty($item['author-id'])) {
 387                                 throw new HTTPException\NotFoundException('Item not found');
 388                         }
 389
 390                         Contact\User::setIgnored($item['author-id'], DI::userSession()->getLocalUserId(), true);
 391
 392                         if (DI::mode()->isAjax()) {
 393                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 394                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 395                         } else {
 396                                 item_redirect_after_action($item, $args->get(3));
 397                         }
 398                         break;
 399
 400                 case 'collapse':
 401                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 402                         if (empty($item['author-id'])) {
 403                                 throw new HTTPException\NotFoundException('Item not found');
 404                         }
 405
 406                         Contact\User::setCollapsed($item['author-id'], DI::userSession()->getLocalUserId(), true);
 407
 408                         if (DI::mode()->isAjax()) {
 409                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 410                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 411                         } else {
 412                                 item_redirect_after_action($item, $args->get(3));
 413                         }
 414                         break;
 415         }
 416
 417         return $o;
 418 }
 419
 420 /**
 421  * @param int    $id
 422  * @param string $return
 423  * @return string
 424  * @throws HTTPException\InternalServerErrorException
 425  */
 426 function drop_item(int $id, string $return = ''): string
 427 {
 428         // Locate item to be deleted
 429         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'], ['id' => $id]);
 430
 431         if (!DBA::isResult($item)) {
 432                 DI::sysmsg()->addNotice(DI::l10n()->t('Item not found.'));
 433                 DI::baseUrl()->redirect('network');
 434                 //NOTREACHED
 435         }
 436
 437         if ($item['deleted']) {
 438                 return '';
 439         }
 440
 441         $contact_id = 0;
 442
 443         // check if logged in user is either the author or owner of this item
 444         if (DI::userSession()->getRemoteContactID($item['uid']) == $item['contact-id']) {
 445                 $contact_id = $item['contact-id'];
 446         }
 447
 448         if ((DI::userSession()->getLocalUserId() == $item['uid']) || $contact_id) {
 449                 // delete the item
 450                 Item::deleteForUser(['id' => $item['id']], DI::userSession()->getLocalUserId());
 451
 452                 item_redirect_after_action($item, $return);
 453                 //NOTREACHED
 454         } else {
 455                 Logger::warning('Permission denied.', ['local' => DI::userSession()->getLocalUserId(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 456                 DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
 457                 DI::baseUrl()->redirect('display/' . $item['guid']);
 458                 //NOTREACHED
 459         }
 460
 461         return '';
 462 }
 463
 464 function item_redirect_after_action(array $item, string $returnUrlHex)
 465 {
 466         $return_url = hex2bin($returnUrlHex);
 467
 468         // removes update_* from return_url to ignore Ajax refresh
 469         $return_url = str_replace('update_', '', $return_url);
 470
 471         // Check if delete a comment
 472         if ($item['gravity'] == Item::GRAVITY_COMMENT) {
 473                 if (!empty($item['parent'])) {
 474                         $parentitem = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid'], ['id' => $item['parent']]);
 475                 }
 476
 477                 // Return to parent guid
 478                 if (!empty($parentitem)) {
 479                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 480                         //NOTREACHED
 481                 } // In case something goes wrong
 482                 else {
 483                         DI::baseUrl()->redirect('network');
 484                         //NOTREACHED
 485                 }
 486         } else {
 487                 // if unknown location or deleting top level post called from display
 488                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 489                         DI::baseUrl()->redirect('network');
 490                         //NOTREACHED
 491                 } else {
 492                         DI::baseUrl()->redirect($return_url);
 493                         //NOTREACHED
 494                 }
 495         }
 496 }