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