inc/poche/Poche.class.php

   1 <?php
   2 /**
   3  * wallabag, self hostable application allowing you to not miss any content anymore
   4  *
   5  * @category   wallabag
   6  * @author     Nicolas Lœuillet <nicolas@loeuillet.org>
   7  * @copyright  2013
   8  * @license    http://opensource.org/licenses/MIT see COPYING file
   9  */
  10
  11 class Poche
  12 {
  13     /**
  14      * @var User
  15      */
  16     public $user;
  17     /**
  18      * @var Database
  19      */
  20     public $store;
  21     /**
  22      * @var Template
  23      */
  24     public $tpl;
  25     /**
  26      * @var Language
  27      */
  28     public $language;
  29     /**
  30      * @var Routing
  31      */
  32     public $routing;
  33     /**
  34      * @var Messages
  35      */
  36     public $messages;
  37     /**
  38      * @var Paginator
  39      */
  40     public $pagination;
  41
  42     public function __construct()
  43     {
  44         $this->init();
  45     }
  46
  47     private function init()
  48     {
  49         Tools::initPhp();
  50
  51         $pocheUser = Session::getParam('poche_user');
  52
  53         if ($pocheUser && $pocheUser != array()) {
  54             $this->user = $pocheUser;
  55         } else {
  56             // fake user, just for install & login screens
  57             $this->user = new User();
  58             $this->user->setConfig($this->getDefaultConfig());
  59         }
  60
  61         $this->pagination   = new Paginator($this->user->getConfigValue('pager'), 'p');
  62         $this->language     = new Language($this);
  63         $this->tpl          = new Template($this);
  64         $this->store        = new Database();
  65         $this->messages     = new Messages();
  66         $this->routing      = new Routing($this);
  67     }
  68
  69     public function run()
  70     {
  71         $this->routing->run();
  72     }
  73
  74     /**
  75      * Creates a new user
  76      */
  77     public function createNewUser($username, $password, $email = "")
  78     {
  79         if (!empty($username) && !empty($password)){
  80             $newUsername = filter_var($username, FILTER_SANITIZE_STRING);
  81             $email = filter_var($email, FILTER_SANITIZE_STRING);
  82             if (!$this->store->userExists($newUsername)){
  83                 if ($this->store->install($newUsername, Tools::encodeString($password . $newUsername), $email)) {
  84                     Tools::logm('The new user ' . $newUsername . ' has been installed');
  85                     $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'), $newUsername));
  86                     Tools::redirect();
  87                 }
  88                 else {
  89                     Tools::logm('error during adding new user');
  90                     Tools::redirect();
  91                 }
  92             }
  93             else {
  94                 $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'), $newUsername));
  95                 Tools::logm('An user with the name ' . $newUsername . ' already exists !');
  96                 Tools::redirect();
  97             }
  98         }
  99     }
 100
 101     /**
 102      * Delete an existing user
 103      */
 104     public function deleteUser($password)
 105     {
 106         if ($this->store->listUsers() > 1) {
 107             if (Tools::encodeString($password . $this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
 108                 $username = $this->user->getUsername();
 109                 $this->store->deleteUserConfig($this->user->getId());
 110                 Tools::logm('The configuration for user '. $username .' has been deleted !');
 111                 $this->store->deleteTagsEntriesAndEntries($this->user->getId());
 112                 Tools::logm('The entries for user '. $username .' has been deleted !');
 113                 $this->store->deleteUser($this->user->getId());
 114                 Tools::logm('User '. $username .' has been completely deleted !');
 115                 Session::logout();
 116                 Tools::logm('logout');
 117                 Tools::redirect();
 118                 $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'), $username));
 119             }
 120             else {
 121                 Tools::logm('Bad password !');
 122                 $this->messages->add('e', _('Error : The password is wrong !'));
 123             }
 124         }
 125         else {
 126             Tools::logm('Only user !');
 127             $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
 128         }
 129     }
 130
 131     public function getDefaultConfig()
 132     {
 133         return array(
 134             'pager' => PAGINATION,
 135             'language' => LANG,
 136             'theme' => DEFAULT_THEME
 137         );
 138     }
 139
 140     /**
 141      * Call action (mark as fav, archive, delete, etc.)
 142      */
 143     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 144     {
 145         switch ($action)
 146         {
 147             case 'add':
 148                 $content = Tools::getPageContent($url);
 149                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 150                 $body = $content['rss']['channel']['item']['description'];
 151
 152                 // clean content from prevent xss attack
 153                 $purifier = $this->_getPurifier();
 154                 $title = $purifier->purify($title);
 155                 $body = $purifier->purify($body);
 156
 157                 //search for possible duplicate
 158                 $duplicate = NULL;
 159                 $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 160
 161                 $last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
 162                 if ( $last_id ) {
 163                     Tools::logm('add link ' . $url->getUrl());
 164                     if (DOWNLOAD_PICTURES) {
 165                         $content = Picture::filterPicture($body, $url->getUrl(), $last_id);
 166                         Tools::logm('updating content article');
 167                         $this->store->updateContent($last_id, $content, $this->user->getId());
 168                     }
 169
 170                     if ($duplicate != NULL) {
 171                         // duplicate exists, so, older entry needs to be deleted (as new entry should go to the top of list), BUT favorite mark and tags should be preserved
 172                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 173                         // 1) - preserve tags and favorite, then drop old entry
 174                         $this->store->reassignTags($duplicate['id'], $last_id);
 175                         if ($duplicate['is_fav']) {
 176                           $this->store->favoriteById($last_id, $this->user->getId());
 177                         }
 178                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 179                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 180                         }
 181                     }
 182
 183                     // if there are tags, add them to the new article
 184                     if (isset($_GET['tags'])) {
 185                         $_POST['value'] = $_GET['tags'];
 186                         $_POST['entry_id'] = $last_id;
 187                         $this->action('add_tag', $url);
 188                     }
 189
 190                     $this->messages->add('s', _('the link has been added successfully'));
 191                 }
 192                 else {
 193                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 194                     Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 195                 }
 196
 197                 if ($autoclose == TRUE) {
 198                   Tools::redirect('?view=home');
 199                 } else {
 200                   Tools::redirect('?view=home&closewin=true');
 201                 }
 202                 break;
 203             case 'delete':
 204                 if (isset($_GET['search'])) {
 205                     //when we want to apply a delete to a search
 206                     $tags = array($_GET['search']);
 207                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 208                     $entry_ids = array();
 209                     foreach ($allentry_ids as $eachentry) {
 210                         $entry_ids[] = $eachentry[0];
 211                     }
 212                 } else { // delete a single article
 213                     $entry_ids = array($id);
 214                 }
 215                 foreach($entry_ids as $id) {
 216                     $msg = 'delete link #' . $id;
 217                     if ($this->store->deleteById($id, $this->user->getId())) {
 218                         if (DOWNLOAD_PICTURES) {
 219                             Picture::removeDirectory(ABS_PATH . $id);
 220                         }
 221                         $this->messages->add('s', _('the link has been deleted successfully'));
 222                     }
 223                     else {
 224                         $this->messages->add('e', _('the link wasn\'t deleted'));
 225                         $msg = 'error : can\'t delete link #' . $id;
 226                     }
 227                     Tools::logm($msg);
 228                 }
 229                 Tools::redirect('?');
 230                 break;
 231             case 'toggle_fav' :
 232                 $this->store->favoriteById($id, $this->user->getId());
 233                 Tools::logm('mark as favorite link #' . $id);
 234                 if ( Tools::isAjaxRequest() ) {
 235                   echo 1;
 236                   exit;
 237                 }
 238                 else {
 239                   Tools::redirect();
 240                 }
 241                 break;
 242             case 'toggle_archive' :
 243                 if (isset($_GET['tag_id'])) {
 244                     //when we want to archive a whole tag
 245                     $tag_id = $_GET['tag_id'];
 246                     $allentry_ids = $this->store->retrieveEntriesByTag($tag_id, $this->user->getId());
 247                     $entry_ids = array();
 248                     foreach ($allentry_ids as $eachentry) {
 249                         $entry_ids[] = $eachentry[0];
 250                     }
 251                 } else { //archive a single article
 252                     $entry_ids = array($id);
 253                 }
 254                 foreach($entry_ids as $id) {
 255                     $this->store->archiveById($id, $this->user->getId());
 256                     Tools::logm('archive link #' . $id);
 257                 }
 258                 if ( Tools::isAjaxRequest() ) {
 259                   echo 1;
 260                   exit;
 261                 }
 262                 else {
 263                   Tools::redirect();
 264                 }
 265                 break;
 266             case 'archive_all' :
 267                 $this->store->archiveAll($this->user->getId());
 268                 Tools::logm('archive all links');
 269                 Tools::redirect();
 270                 break;
 271             case 'add_tag' :
 272                 if (isset($_GET['search'])) {
 273                     //when we want to apply a tag to a search
 274                     $tags = array($_GET['search']);
 275                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 276                     $entry_ids = array();
 277                     foreach ($allentry_ids as $eachentry) {
 278                         $entry_ids[] = $eachentry[0];
 279                     }
 280                 } else { //add a tag to a single article
 281                     $tags = explode(',', $_POST['value']);
 282                     $entry_ids = array($_POST['entry_id']);
 283                 }
 284                 foreach($entry_ids as $entry_id) {
 285                     $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 286                     if (!$entry) {
 287                         $this->messages->add('e', _('Article not found!'));
 288                         Tools::logm('error : article not found');
 289                         Tools::redirect();
 290                     }
 291                     //get all already set tags to preven duplicates
 292                     $already_set_tags = array();
 293                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 294                     foreach ($entry_tags as $tag) {
 295                       $already_set_tags[] = $tag['value'];
 296                     }
 297                     foreach($tags as $key => $tag_value) {
 298                         $value = trim($tag_value);
 299                         if ($value && !in_array($value, $already_set_tags)) {
 300                           $tag = $this->store->retrieveTagByValue($value);
 301                           if (is_null($tag)) {
 302                               # we create the tag
 303                               $tag = $this->store->createTag($value);
 304                               $sequence = '';
 305                               if (STORAGE == 'postgres') {
 306                                   $sequence = 'tags_id_seq';
 307                               }
 308                               $tag_id = $this->store->getLastId($sequence);
 309                           }
 310                           else {
 311                               $tag_id = $tag['id'];
 312                           }
 313
 314                           # we assign the tag to the article
 315                           $this->store->setTagToEntry($tag_id, $entry_id);
 316                         }
 317                     }
 318                 }
 319                 $this->messages->add('s', _('The tag has been applied successfully'));
 320                 Tools::logm('The tag has been applied successfully');
 321                 Tools::redirect();
 322                 break;
 323             case 'remove_tag' :
 324                 $tag_id = $_GET['tag_id'];
 325                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 326                 if (!$entry) {
 327                     $this->messages->add('e', _('Article not found!'));
 328                     Tools::logm('error : article not found');
 329                     Tools::redirect();
 330                 }
 331                 $this->store->removeTagForEntry($id, $tag_id);
 332                 Tools::logm('tag entry deleted');
 333                 if ($this->store->cleanUnusedTag($tag_id)) {
 334                     Tools::logm('tag deleted');
 335                 }
 336                 $this->messages->add('s', _('The tag has been successfully deleted'));
 337                 Tools::redirect();
 338                 break;
 339             default:
 340                 break;
 341         }
 342     }
 343
 344     function displayView($view, $id = 0)
 345     {
 346         $tpl_vars = array();
 347
 348         switch ($view)
 349         {
 350             case 'about':
 351                 break;
 352             case 'config':
 353                 $dev_infos = $this->_getPocheVersion('dev');
 354                 $dev = trim($dev_infos[0]);
 355                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 356                 $prod_infos = $this->_getPocheVersion('prod');
 357                 $prod = trim($prod_infos[0]);
 358                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 359                 $compare_dev = version_compare(POCHE, $dev);
 360                 $compare_prod = version_compare(POCHE, $prod);
 361                 $themes = $this->tpl->getInstalledThemes();
 362                 $languages = $this->language->getInstalledLanguages();
 363                 $token = $this->user->getConfigValue('token');
 364                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 365                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 366                 $tpl_vars = array(
 367                     'themes' => $themes,
 368                     'languages' => $languages,
 369                     'dev' => $dev,
 370                     'prod' => $prod,
 371                     'check_time_dev' => $check_time_dev,
 372                     'check_time_prod' => $check_time_prod,
 373                     'compare_dev' => $compare_dev,
 374                     'compare_prod' => $compare_prod,
 375                     'token' => $token,
 376                     'user_id' => $this->user->getId(),
 377                     'http_auth' => $http_auth,
 378                     'only_user' => $only_user
 379                 );
 380                 Tools::logm('config view');
 381                 break;
 382             case 'edit-tags':
 383                 # tags
 384                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 385                 if (!$entry) {
 386                     $this->messages->add('e', _('Article not found!'));
 387                     Tools::logm('error : article not found');
 388                     Tools::redirect();
 389                 }
 390                 $tags = $this->store->retrieveTagsByEntry($id);
 391                 $tpl_vars = array(
 392                     'entry_id' => $id,
 393                     'tags' => $tags,
 394                     'entry' => $entry,
 395                 );
 396                 break;
 397             case 'tags':
 398                 $token = $this->user->getConfigValue('token');
 399                 //if term is set - search tags for this term
 400                 $term = Tools::checkVar('term');
 401                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 402                 if (Tools::isAjaxRequest()) {
 403                   $result = array();
 404                   foreach ($tags as $tag) {
 405                     $result[] = $tag['value'];
 406                   }
 407                   echo json_encode($result);
 408                   exit;
 409                 }
 410                 $tpl_vars = array(
 411                     'token' => $token,
 412                     'user_id' => $this->user->getId(),
 413                     'tags' => $tags,
 414                 );
 415                 break;
 416             case 'search':
 417                 if (isset($_GET['search'])) {
 418                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 419                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 420                    $count = count($tpl_vars['entries']);
 421                    $this->pagination->set_total($count);
 422                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 423                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 424                    $tpl_vars['page_links'] = $page_links;
 425                    $tpl_vars['nb_results'] = $count;
 426                    $tpl_vars['searchterm'] = $search;
 427                 }
 428                 break;
 429             case 'view':
 430                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 431                 if ($entry != NULL) {
 432                     Tools::logm('view link #' . $id);
 433                     $content = $entry['content'];
 434                     if (function_exists('tidy_parse_string')) {
 435                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 436                         $tidy->cleanRepair();
 437                         $content = $tidy->value;
 438                     }
 439
 440                     # flattr checking
 441                     $flattr = NULL;
 442                     if (FLATTR) {
 443                         $flattr = new FlattrItem();
 444                         $flattr->checkItem($entry['url'], $entry['id']);
 445                     }
 446
 447                     # tags
 448                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 449
 450                     $tpl_vars = array(
 451                         'entry' => $entry,
 452                         'content' => $content,
 453                         'flattr' => $flattr,
 454                         'tags' => $tags
 455                     );
 456                 }
 457                 else {
 458                     Tools::logm('error in view call : entry is null');
 459                 }
 460                 break;
 461             default: # home, favorites, archive and tag views
 462                 $tpl_vars = array(
 463                     'entries' => '',
 464                     'page_links' => '',
 465                     'nb_results' => '',
 466                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 467                 );
 468
 469                 //if id is given - we retrieve entries by tag: id is tag id
 470                 if ($id) {
 471                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 472                   $tpl_vars['id'] = intval($id);
 473                 }
 474
 475                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 476
 477                 if ($count > 0) {
 478                     $this->pagination->set_total($count);
 479                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 480                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 481                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 482                     $tpl_vars['page_links'] = $page_links;
 483                     $tpl_vars['nb_results'] = $count;
 484                 }
 485                 Tools::logm('display ' . $view . ' view');
 486                 break;
 487         }
 488
 489         return $tpl_vars;
 490     }
 491
 492     /**
 493      * update the password of the current user.
 494      * if MODE_DEMO is TRUE, the password can't be updated.
 495      * @todo add the return value
 496      * @todo set the new password in function header like this updatePassword($newPassword)
 497      * @return boolean
 498      */
 499     public function updatePassword($password, $confirmPassword)
 500     {
 501         if (MODE_DEMO) {
 502             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 503             Tools::logm('in demo mode, you can\'t do this');
 504             Tools::redirect('?view=config');
 505         }
 506         else {
 507             if (isset($password) && isset($confirmPassword)) {
 508                 if ($password == $confirmPassword && !empty($password)) {
 509                     $this->messages->add('s', _('your password has been updated'));
 510                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 511                     Session::logout();
 512                     Tools::logm('password updated');
 513                     Tools::redirect();
 514                 }
 515                 else {
 516                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 517                     Tools::redirect('?view=config');
 518                 }
 519             }
 520         }
 521     }
 522
 523     /**
 524      * Get credentials from differents sources
 525      * It redirects the user to the $referer link
 526      *
 527      * @return array
 528      */
 529     private function credentials()
 530     {
 531         if (isset($_SERVER['PHP_AUTH_USER'])) {
 532             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 533         }
 534         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 535             return array($_POST['login'], $_POST['password'], false);
 536         }
 537         if (isset($_SERVER['REMOTE_USER'])) {
 538             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 539         }
 540
 541         return array(false, false, false);
 542     }
 543
 544     /**
 545      * checks if login & password are correct and save the user in session.
 546      * it redirects the user to the $referer link
 547      * @param  string $referer the url to redirect after login
 548      * @todo add the return value
 549      * @return boolean
 550      */
 551     public function login($referer)
 552     {
 553         list($login,$password,$isauthenticated)=$this->credentials();
 554         if($login === false || $password === false) {
 555             $this->messages->add('e', _('login failed: you have to fill all fields'));
 556             Tools::logm('login failed');
 557             Tools::redirect();
 558         }
 559         if (!empty($login) && !empty($password)) {
 560             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 561             if ($user != array()) {
 562                 # Save login into Session
 563                 $longlastingsession = isset($_POST['longlastingsession']);
 564                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 565                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 566
 567                 # reload l10n
 568                 $language = $user['config']['language'];
 569                 @putenv('LC_ALL=' . $language);
 570                 setlocale(LC_ALL, $language);
 571                 bindtextdomain($language, LOCALE);
 572                 textdomain($language);
 573
 574                 $this->messages->add('s', _('welcome to your wallabag'));
 575                 Tools::logm('login successful');
 576                 Tools::redirect($referer);
 577             }
 578             $this->messages->add('e', _('login failed: bad login or password'));
 579             // log login failure in web server log to allow fail2ban usage
 580             error_log('user '.$login.' authentication failure');
 581             Tools::logm('login failed');
 582             Tools::redirect();
 583         }
 584     }
 585
 586     /**
 587      * log out the poche user. It cleans the session.
 588      * @todo add the return value
 589      * @return boolean
 590      */
 591     public function logout()
 592     {
 593         $this->user = array();
 594         Session::logout();
 595         Tools::logm('logout');
 596         Tools::redirect();
 597     }
 598
 599     /**
 600      * import datas into your wallabag
 601      * @return boolean
 602      */
 603
 604     public function import() {
 605
 606       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 607         Tools::logm('Import stated: parsing file');
 608
 609         // assume, that file is in json format
 610         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 611         $data = json_decode($str_data, true);
 612
 613         if ( $data === null ) {
 614           //not json - assume html
 615           $html = new simple_html_dom();
 616           $html->load_file($_FILES['file']['tmp_name']);
 617           $data = array();
 618           $read = 0;
 619           foreach (array('ol','ul') as $list) {
 620             foreach ($html->find($list) as $ul) {
 621               foreach ($ul->find('li') as $li) {
 622                 $tmpEntry = array();
 623                   $a = $li->find('a');
 624                   $tmpEntry['url'] = $a[0]->href;
 625                   $tmpEntry['tags'] = $a[0]->tags;
 626                   $tmpEntry['is_read'] = $read;
 627                   if ($tmpEntry['url']) {
 628                     $data[] = $tmpEntry;
 629                   }
 630               }
 631               # the second <ol/ul> is for read links
 632               $read = ((sizeof($data) && $read)?0:1);
 633             }
 634           }
 635         }
 636
 637             // for readability structure
 638
 639             foreach($data as $record) {
 640                 if (is_array($record)) {
 641                     $data[] = $record;
 642                     foreach($record as $record2) {
 643                         if (is_array($record2)) {
 644                             $data[] = $record2;
 645                         }
 646                     }
 647                 }
 648             }
 649
 650             $urlsInserted = array(); //urls of articles inserted
 651             foreach($data as $record) {
 652                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 653                 if ($url and !in_array($url, $urlsInserted)) {
 654                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 655                     $body = (isset($record['content']) ? $record['content'] : '');
 656                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 657                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 658
 659                     // insert new record
 660
 661                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 662                     if ($id) {
 663                         $urlsInserted[] = $url; //add
 664                         if (isset($record['tags']) && trim($record['tags'])) {
 665
 666                             // @TODO: set tags
 667
 668                         }
 669                     }
 670                 }
 671             }
 672
 673             $i = sizeof($urlsInserted);
 674             if ($i > 0) {
 675                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 676             }
 677
 678         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 679       }
 680       else {
 681         $this->messages->add('s', _('Did you forget to select a file?'));
 682       }
 683         // file parsing finished here
 684         // now download article contents if any
 685         // check if we need to download any content
 686
 687         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 688
 689         if ($recordsDownloadRequired == 0) {
 690
 691             // nothing to download
 692
 693             $this->messages->add('s', _('Import finished.'));
 694             Tools::logm('Import finished completely');
 695             Tools::redirect();
 696         }
 697         else {
 698
 699             // if just inserted - don't download anything, download will start in next reload
 700
 701             if (!isset($_FILES['file'])) {
 702
 703                 // download next batch
 704
 705                 Tools::logm('Fetching next batch of articles...');
 706                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 707                 $purifier = $this->_getPurifier();
 708                 foreach($items as $item) {
 709                     $url = new Url(base64_encode($item['url']));
 710                     Tools::logm('Fetching article ' . $item['id']);
 711                     $content = Tools::getPageContent($url);
 712                     $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 713                     $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 714
 715                     // clean content to prevent xss attack
 716
 717                     $title = $purifier->purify($title);
 718                     $body = $purifier->purify($body);
 719                     $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 720                     Tools::logm('Article ' . $item['id'] . ' updated.');
 721                 }
 722             }
 723         }
 724
 725         return array(
 726             'includeImport' => true,
 727             'import' => array(
 728                 'recordsDownloadRequired' => $recordsDownloadRequired,
 729                 'recordsUnderDownload' => IMPORT_LIMIT,
 730                 'delay' => IMPORT_DELAY * 1000
 731             )
 732         );
 733     }
 734
 735     /**
 736      * export poche entries in json
 737      * @return json all poche entries
 738      */
 739     public function export()
 740     {
 741       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 742       header('Content-Disposition: attachment; filename='.$filename);
 743
 744       $entries = $this->store->retrieveAll($this->user->getId());
 745       echo $this->tpl->render('export.twig', array(
 746           'export' => Tools::renderJson($entries),
 747       ));
 748       Tools::logm('export view');
 749     }
 750
 751     /**
 752      * Checks online the latest version of poche and cache it
 753      * @param  string $which 'prod' or 'dev'
 754      * @return string        latest $which version
 755      */
 756     private function _getPocheVersion($which = 'prod') {
 757       $cache_file = CACHE . '/' . $which;
 758       $check_time = time();
 759
 760       # checks if the cached version file exists
 761       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 762          $version = file_get_contents($cache_file);
 763          $check_time = filemtime($cache_file);
 764       } else {
 765          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 766          file_put_contents($cache_file, $version, LOCK_EX);
 767       }
 768       return array($version, $check_time);
 769     }
 770
 771     /**
 772      * Update token for current user
 773      */
 774     public function updateToken()
 775     {
 776         $token = Tools::generateToken();
 777         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 778         $currentConfig = $_SESSION['poche_user']->config;
 779         $currentConfig['token'] = $token;
 780         $_SESSION['poche_user']->setConfig($currentConfig);
 781         Tools::redirect();
 782     }
 783
 784     /**
 785      * Generate RSS feeds for current user
 786      *
 787      * @param $token
 788      * @param $user_id
 789      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 790      * @param string $type the type of feed to generate
 791      * @param int $limit the maximum number of items (0 means all)
 792      */
 793     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 794     {
 795         $allowed_types = array('home', 'fav', 'archive', 'tag');
 796         $config = $this->store->getConfigUser($user_id);
 797
 798         if ($config == null) {
 799             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 800         }
 801
 802         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 803             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 804         }
 805
 806         $feed = new FeedWriter(RSS2);
 807         $feed->setTitle('wallabag — ' . $type . ' feed');
 808         $feed->setLink(Tools::getPocheUrl());
 809         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 810         $feed->setChannelElement('generator', 'wallabag');
 811         $feed->setDescription('wallabag ' . $type . ' elements');
 812
 813         if ($type == 'tag') {
 814             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 815         }
 816         else {
 817             $entries = $this->store->getEntriesByView($type, $user_id);
 818         }
 819
 820         // if $limit is set to zero, use all entries
 821         if (0 == $limit) {
 822             $limit = count($entries);
 823         }
 824         if (count($entries) > 0) {
 825             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 826                 $entry = $entries[$i];
 827                 $newItem = $feed->createNewItem();
 828                 $newItem->setTitle($entry['title']);
 829                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 830                 $newItem->setLink($entry['url']);
 831                 $newItem->setDate(time());
 832                 $newItem->setDescription($entry['content']);
 833                 $feed->addItem($newItem);
 834             }
 835         }
 836
 837         $feed->genarateFeed();
 838         exit;
 839     }
 840
 841
 842
 843     /**
 844      * Returns new purifier object with actual config
 845      */
 846     private function _getPurifier()
 847     {
 848         $config = HTMLPurifier_Config::createDefault();
 849         $config->set('Cache.SerializerPath', CACHE);
 850         $config->set('HTML.SafeIframe', true);
 851
 852         //allow YouTube, Vimeo and dailymotion videos
 853         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 854
 855         return new HTMLPurifier($config);
 856     }
 857
 858
 859 }