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