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\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         Logger::debug('post_complete');
 225
 226         item_post_return(DI::baseUrl(), $return_path);
 227         // NOTREACHED
 228 }
 229
 230 function item_process(array $post, array $request, bool $preview, string $return_path): array
 231 {
 232         $post['self']       = true;
 233         $post['api_source'] = false;
 234         $post['attach']     = '';
 235         $post['title']      = trim($request['title'] ?? '');
 236         $post['body']       = $request['body'] ?? '';
 237         $post['location']   = trim($request['location'] ?? '');
 238         $post['coord']      = trim($request['coord'] ?? '');
 239
 240         $post = DI::contentItem()->addCategories($post, $request['category'] ?? '');
 241
 242         // Add the attachment to the body.
 243         if (!empty($request['has_attachment'])) {
 244                 $post['body'] .= DI::contentItem()->storeAttachmentFromRequest($request);
 245         }
 246
 247         $post = DI::contentItem()->finalizePost($post);
 248
 249         if (!strlen($post['body'])) {
 250                 if ($preview) {
 251                         System::jsonExit(['preview' => '']);
 252                 }
 253
 254                 if ($return_path) {
 255                         DI::sysmsg()->addNotice(DI::l10n()->t('Empty post discarded.'));
 256                         DI::baseUrl()->redirect($return_path);
 257                 }
 258
 259                 throw new HTTPException\BadRequestException(DI::l10n()->t('Empty post discarded.'));
 260         }
 261
 262         // preview mode - prepare the body for display and send it via json
 263         if ($preview) {
 264                 // We have to preset some fields, so that the conversation can be displayed
 265                 $post['id']             = -1;
 266                 $post['uri-id']         = -1;
 267                 $post['author-network'] = Protocol::DFRN;
 268                 $post['author-updated'] = '';
 269                 $post['author-gsid']    = 0;
 270                 $post['author-uri-id']  = ItemURI::getIdByURI($post['author-link']);
 271                 $post['owner-updated']  = '';
 272                 $post['has-media']      = false;
 273                 $post['quote-uri-id']   = Item::getQuoteUriId($post['body'], $post['uid']);
 274                 $post['body']           = BBCode::removeSharedData(Item::setHashtags($post['body']));
 275                 $post['writable']       = true;
 276
 277                 $o = DI::conversation()->create([$post], Conversation::MODE_SEARCH, false, true);
 278
 279                 System::jsonExit(['preview' => $o]);
 280         }
 281
 282         Hook::callAll('post_local',$post);
 283
 284         unset($post['edit']);
 285         unset($post['self']);
 286         unset($post['api_source']);
 287
 288         if (!empty($request['scheduled_at'])) {
 289                 $scheduled_at = DateTimeFormat::convert($request['scheduled_at'], 'UTC', DI::app()->getTimeZone());
 290                 if ($scheduled_at > DateTimeFormat::utcNow()) {
 291                         unset($post['created']);
 292                         unset($post['edited']);
 293                         unset($post['commented']);
 294                         unset($post['received']);
 295                         unset($post['changed']);
 296
 297                         Post\Delayed::add($post['uri'], $post, Worker::PRIORITY_HIGH, Post\Delayed::PREPARED_NO_HOOK, $scheduled_at);
 298                         item_post_return(DI::baseUrl(), $return_path);
 299                 }
 300         }
 301
 302         if (!empty($post['cancel'])) {
 303                 Logger::info('mod_item: post cancelled by addon.');
 304                 if ($return_path) {
 305                         DI::baseUrl()->redirect($return_path);
 306                 }
 307
 308                 $json = ['cancel' => 1];
 309                 if (!empty($request['jsreload'])) {
 310                         $json['reload'] = DI::baseUrl() . '/' . $request['jsreload'];
 311                 }
 312
 313                 System::jsonExit($json);
 314         }
 315
 316         return $post;
 317 }
 318
 319 function item_post_return($baseurl, $return_path)
 320 {
 321         if ($return_path) {
 322                 DI::baseUrl()->redirect($return_path);
 323         }
 324
 325         $json = ['success' => 1];
 326         if (!empty($_REQUEST['jsreload'])) {
 327                 $json['reload'] = $baseurl . '/' . $_REQUEST['jsreload'];
 328         }
 329
 330         Logger::debug('post_json', ['json' => $json]);
 331
 332         System::jsonExit($json);
 333 }
 334
 335 function item_content(App $a)
 336 {
 337         if (!DI::userSession()->isAuthenticated()) {
 338                 throw new HTTPException\UnauthorizedException();
 339         }
 340
 341         $args = DI::args();
 342
 343         if (!$args->has(3)) {
 344                 throw new HTTPException\BadRequestException();
 345         }
 346
 347         $o = '';
 348         switch ($args->get(1)) {
 349                 case 'drop':
 350                         if (DI::mode()->isAjax()) {
 351                                 Item::deleteForUser(['id' => $args->get(2)], DI::userSession()->getLocalUserId());
 352                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 353                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 354                         } else {
 355                                 if (!empty($args->get(3))) {
 356                                         $o = drop_item($args->get(2), $args->get(3));
 357                                 } else {
 358                                         $o = drop_item($args->get(2));
 359                                 }
 360                         }
 361                         break;
 362
 363                 case 'block':
 364                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 365                         if (empty($item['author-id'])) {
 366                                 throw new HTTPException\NotFoundException('Item not found');
 367                         }
 368
 369                         Contact\User::setBlocked($item['author-id'], DI::userSession()->getLocalUserId(), true);
 370
 371                         if (DI::mode()->isAjax()) {
 372                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 373                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 374                         } else {
 375                                 item_redirect_after_action($item, $args->get(3));
 376                         }
 377                         break;
 378
 379                 case 'ignore':
 380                         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid', 'author-id', 'parent', 'gravity'], ['id' => $args->get(2)]);
 381                         if (empty($item['author-id'])) {
 382                                 throw new HTTPException\NotFoundException('Item not found');
 383                         }
 384
 385                         Contact\User::setIgnored($item['author-id'], DI::userSession()->getLocalUserId(), true);
 386
 387                         if (DI::mode()->isAjax()) {
 388                                 // ajax return: [<item id>, 0 (no perm) | <owner id>]
 389                                 System::jsonExit([intval($args->get(2)), DI::userSession()->getLocalUserId()]);
 390                         } else {
 391                                 item_redirect_after_action($item, $args->get(3));
 392                         }
 393                         break;
 394         }
 395
 396         return $o;
 397 }
 398
 399 /**
 400  * @param int    $id
 401  * @param string $return
 402  * @return string
 403  * @throws HTTPException\InternalServerErrorException
 404  */
 405 function drop_item(int $id, string $return = ''): string
 406 {
 407         // Locate item to be deleted
 408         $item = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['id', 'uid', 'guid', 'contact-id', 'deleted', 'gravity', 'parent'], ['id' => $id]);
 409
 410         if (!DBA::isResult($item)) {
 411                 DI::sysmsg()->addNotice(DI::l10n()->t('Item not found.'));
 412                 DI::baseUrl()->redirect('network');
 413                 //NOTREACHED
 414         }
 415
 416         if ($item['deleted']) {
 417                 return '';
 418         }
 419
 420         $contact_id = 0;
 421
 422         // check if logged in user is either the author or owner of this item
 423         if (DI::userSession()->getRemoteContactID($item['uid']) == $item['contact-id']) {
 424                 $contact_id = $item['contact-id'];
 425         }
 426
 427         if ((DI::userSession()->getLocalUserId() == $item['uid']) || $contact_id) {
 428                 // delete the item
 429                 Item::deleteForUser(['id' => $item['id']], DI::userSession()->getLocalUserId());
 430
 431                 item_redirect_after_action($item, $return);
 432                 //NOTREACHED
 433         } else {
 434                 Logger::warning('Permission denied.', ['local' => DI::userSession()->getLocalUserId(), 'uid' => $item['uid'], 'cid' => $contact_id]);
 435                 DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
 436                 DI::baseUrl()->redirect('display/' . $item['guid']);
 437                 //NOTREACHED
 438         }
 439
 440         return '';
 441 }
 442
 443 function item_redirect_after_action(array $item, string $returnUrlHex)
 444 {
 445         $return_url = hex2bin($returnUrlHex);
 446
 447         // removes update_* from return_url to ignore Ajax refresh
 448         $return_url = str_replace('update_', '', $return_url);
 449
 450         // Check if delete a comment
 451         if ($item['gravity'] == Item::GRAVITY_COMMENT) {
 452                 if (!empty($item['parent'])) {
 453                         $parentitem = Post::selectFirstForUser(DI::userSession()->getLocalUserId(), ['guid'], ['id' => $item['parent']]);
 454                 }
 455
 456                 // Return to parent guid
 457                 if (!empty($parentitem)) {
 458                         DI::baseUrl()->redirect('display/' . $parentitem['guid']);
 459                         //NOTREACHED
 460                 } // In case something goes wrong
 461                 else {
 462                         DI::baseUrl()->redirect('network');
 463                         //NOTREACHED
 464                 }
 465         } else {
 466                 // if unknown location or deleting top level post called from display
 467                 if (empty($return_url) || strpos($return_url, 'display') !== false) {
 468                         DI::baseUrl()->redirect('network');
 469                         //NOTREACHED
 470                 } else {
 471                         DI::baseUrl()->redirect($return_url);
 472                         //NOTREACHED
 473                 }
 474         }
 475 }