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, $email = "")
  78     {
  79         Tools::logm('Trying to create a new user...');
  80         if (!empty($username) && !empty($password)){
  81             $newUsername = filter_var($username, FILTER_SANITIZE_STRING);
  82             $email = filter_var($email, FILTER_SANITIZE_STRING);
  83             if (!$this->store->userExists($newUsername)){
  84                 if ($this->store->install($newUsername, Tools::encodeString($password . $newUsername), $email)) {
  85                     Tools::logm('The new user ' . $newUsername . ' has been installed');
  86                     $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'), $newUsername));
  87                     Tools::redirect();
  88                 }
  89                 else {
  90                     Tools::logm('error during adding new user');
  91                     Tools::redirect();
  92                 }
  93             }
  94             else {
  95                 $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'), $newUsername));
  96                 Tools::logm('An user with the name ' . $newUsername . ' already exists !');
  97                 Tools::redirect();
  98             }
  99         }
 100         else {
 101             Tools::logm('Password or username were empty');
 102         }
 103     }
 104
 105     /**
 106      * Delete an existing user
 107      */
 108     public function deleteUser($password)
 109     {
 110         if ($this->store->listUsers() > 1) {
 111             if (Tools::encodeString($password . $this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
 112                 $username = $this->user->getUsername();
 113                 $this->store->deleteUserConfig($this->user->getId());
 114                 Tools::logm('The configuration for user '. $username .' has been deleted !');
 115                 $this->store->deleteTagsEntriesAndEntries($this->user->getId());
 116                 Tools::logm('The entries for user '. $username .' has been deleted !');
 117                 $this->store->deleteUser($this->user->getId());
 118                 Tools::logm('User '. $username .' has been completely deleted !');
 119                 Session::logout();
 120                 Tools::logm('logout');
 121                 Tools::redirect();
 122                 $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'), $username));
 123             }
 124             else {
 125                 Tools::logm('Bad password !');
 126                 $this->messages->add('e', _('Error : The password is wrong !'));
 127             }
 128         }
 129         else {
 130             Tools::logm('Only user !');
 131             $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
 132         }
 133     }
 134
 135     public function getDefaultConfig()
 136     {
 137         return array(
 138             'pager' => PAGINATION,
 139             'language' => LANG,
 140             'theme' => DEFAULT_THEME
 141         );
 142     }
 143
 144     /**
 145      * Call action (mark as fav, archive, delete, etc.)
 146      */
 147     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 148     {
 149         switch ($action)
 150         {
 151             case 'add':
 152                 $content = Tools::getPageContent($url);
 153                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 154                 $body = $content['rss']['channel']['item']['description'];
 155
 156                 // clean content from prevent xss attack
 157                 $purifier = $this->_getPurifier();
 158                 $title = $purifier->purify($title);
 159                 $body = $purifier->purify($body);
 160
 161                 //search for possible duplicate
 162                 $duplicate = NULL;
 163                 $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 164
 165                 $last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
 166                 if ( $last_id ) {
 167                     Tools::logm('add link ' . $url->getUrl());
 168                     if (DOWNLOAD_PICTURES) {
 169                         $content = Picture::filterPicture($body, $url->getUrl(), $last_id);
 170                         Tools::logm('updating content article');
 171                         $this->store->updateContent($last_id, $content, $this->user->getId());
 172                     }
 173
 174                     if ($duplicate != NULL) {
 175                         // 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
 176                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 177                         // 1) - preserve tags and favorite, then drop old entry
 178                         $this->store->reassignTags($duplicate['id'], $last_id);
 179                         if ($duplicate['is_fav']) {
 180                           $this->store->favoriteById($last_id, $this->user->getId());
 181                         }
 182                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 183                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 184                         }
 185                     }
 186
 187                     // if there are tags, add them to the new article
 188                     if (isset($_GET['tags'])) {
 189                         $_POST['value'] = $_GET['tags'];
 190                         $_POST['entry_id'] = $last_id;
 191                         $this->action('add_tag', $url);
 192                     }
 193
 194                     $this->messages->add('s', _('the link has been added successfully'));
 195                 }
 196                 else {
 197                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 198                     Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 199                 }
 200
 201                 if ($autoclose == TRUE) {
 202                   Tools::redirect('?view=home');
 203                 } else {
 204                   Tools::redirect('?view=home&closewin=true');
 205                 }
 206                 return $last_id;
 207                 break;
 208             case 'delete':
 209                 if (isset($_GET['search'])) {
 210                     //when we want to apply a delete to a search
 211                     $tags = array($_GET['search']);
 212                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 213                     $entry_ids = array();
 214                     foreach ($allentry_ids as $eachentry) {
 215                         $entry_ids[] = $eachentry[0];
 216                     }
 217                 } else { // delete a single article
 218                     $entry_ids = array($id);
 219                 }
 220                 foreach($entry_ids as $id) {
 221                     $msg = 'delete link #' . $id;
 222                     if ($this->store->deleteById($id, $this->user->getId())) {
 223                         if (DOWNLOAD_PICTURES) {
 224                             Picture::removeDirectory(ABS_PATH . $id);
 225                         }
 226                         $this->messages->add('s', _('the link has been deleted successfully'));
 227                     }
 228                     else {
 229                         $this->messages->add('e', _('the link wasn\'t deleted'));
 230                         $msg = 'error : can\'t delete link #' . $id;
 231                     }
 232                     Tools::logm($msg);
 233                 }
 234                 Tools::redirect('?');
 235                 break;
 236             case 'toggle_fav' :
 237                 $this->store->favoriteById($id, $this->user->getId());
 238                 Tools::logm('mark as favorite link #' . $id);
 239                 if ( Tools::isAjaxRequest() ) {
 240                   echo 1;
 241                   exit;
 242                 }
 243                 else {
 244                   Tools::redirect();
 245                 }
 246                 break;
 247             case 'toggle_archive' :
 248                 if (isset($_GET['tag_id'])) {
 249                     //when we want to archive a whole tag
 250                     $tag_id = $_GET['tag_id'];
 251                     $allentry_ids = $this->store->retrieveEntriesByTag($tag_id, $this->user->getId());
 252                     $entry_ids = array();
 253                     foreach ($allentry_ids as $eachentry) {
 254                         $entry_ids[] = $eachentry[0];
 255                     }
 256                 } else { //archive a single article
 257                     $entry_ids = array($id);
 258                 }
 259                 foreach($entry_ids as $id) {
 260                     $this->store->archiveById($id, $this->user->getId());
 261                     Tools::logm('archive link #' . $id);
 262                 }
 263                 if ( Tools::isAjaxRequest() ) {
 264                   echo 1;
 265                   exit;
 266                 }
 267                 else {
 268                   Tools::redirect();
 269                 }
 270                 break;
 271             case 'archive_all' :
 272                 $this->store->archiveAll($this->user->getId());
 273                 Tools::logm('archive all links');
 274                 Tools::redirect();
 275                 break;
 276             case 'add_tag' :
 277                 if (isset($_GET['search'])) {
 278                     //when we want to apply a tag to a search
 279                     $tags = array($_GET['search']);
 280                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 281                     $entry_ids = array();
 282                     foreach ($allentry_ids as $eachentry) {
 283                         $entry_ids[] = $eachentry[0];
 284                     }
 285                 } else { //add a tag to a single article
 286                     $tags = explode(',', $_POST['value']);
 287                     $entry_ids = array($_POST['entry_id']);
 288                 }
 289                 foreach($entry_ids as $entry_id) {
 290                     $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 291                     if (!$entry) {
 292                         $this->messages->add('e', _('Article not found!'));
 293                         Tools::logm('error : article not found');
 294                         Tools::redirect();
 295                     }
 296                     //get all already set tags to preven duplicates
 297                     $already_set_tags = array();
 298                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 299                     foreach ($entry_tags as $tag) {
 300                       $already_set_tags[] = $tag['value'];
 301                     }
 302                     foreach($tags as $key => $tag_value) {
 303                         $value = trim($tag_value);
 304                         if ($value && !in_array($value, $already_set_tags)) {
 305                           $tag = $this->store->retrieveTagByValue($value);
 306                           if (is_null($tag)) {
 307                               # we create the tag
 308                               $tag = $this->store->createTag($value);
 309                               $sequence = '';
 310                               if (STORAGE == 'postgres') {
 311                                   $sequence = 'tags_id_seq';
 312                               }
 313                               $tag_id = $this->store->getLastId($sequence);
 314                           }
 315                           else {
 316                               $tag_id = $tag['id'];
 317                           }
 318
 319                           # we assign the tag to the article
 320                           $this->store->setTagToEntry($tag_id, $entry_id);
 321                         }
 322                     }
 323                 }
 324                 $this->messages->add('s', _('The tag has been applied successfully'));
 325                 Tools::logm('The tag has been applied successfully');
 326                 Tools::redirect();
 327                 break;
 328             case 'remove_tag' :
 329                 $tag_id = $_GET['tag_id'];
 330                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 331                 if (!$entry) {
 332                     $this->messages->add('e', _('Article not found!'));
 333                     Tools::logm('error : article not found');
 334                     Tools::redirect();
 335                 }
 336                 $this->store->removeTagForEntry($id, $tag_id);
 337                 Tools::logm('tag entry deleted');
 338                 if ($this->store->cleanUnusedTag($tag_id)) {
 339                     Tools::logm('tag deleted');
 340                 }
 341                 $this->messages->add('s', _('The tag has been successfully deleted'));
 342                 Tools::redirect();
 343                 break;
 344             default:
 345                 break;
 346         }
 347     }
 348
 349     function displayView($view, $id = 0)
 350     {
 351         $tpl_vars = array();
 352
 353         switch ($view)
 354         {
 355             case 'about':
 356                 break;
 357             case 'config':
 358                 $dev_infos = $this->_getPocheVersion('dev');
 359                 $dev = trim($dev_infos[0]);
 360                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 361                 $prod_infos = $this->_getPocheVersion('prod');
 362                 $prod = trim($prod_infos[0]);
 363                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 364                 $compare_dev = version_compare(POCHE, $dev);
 365                 $compare_prod = version_compare(POCHE, $prod);
 366                 $themes = $this->tpl->getInstalledThemes();
 367                 $languages = $this->language->getInstalledLanguages();
 368                 $token = $this->user->getConfigValue('token');
 369                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 370                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 371                 $tpl_vars = array(
 372                     'themes' => $themes,
 373                     'languages' => $languages,
 374                     'dev' => $dev,
 375                     'prod' => $prod,
 376                     'check_time_dev' => $check_time_dev,
 377                     'check_time_prod' => $check_time_prod,
 378                     'compare_dev' => $compare_dev,
 379                     'compare_prod' => $compare_prod,
 380                     'token' => $token,
 381                     'user_id' => $this->user->getId(),
 382                     'http_auth' => $http_auth,
 383                     'only_user' => $only_user
 384                 );
 385                 Tools::logm('config view');
 386                 break;
 387             case 'edit-tags':
 388                 # tags
 389                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 390                 if (!$entry) {
 391                     $this->messages->add('e', _('Article not found!'));
 392                     Tools::logm('error : article not found');
 393                     Tools::redirect();
 394                 }
 395                 $tags = $this->store->retrieveTagsByEntry($id);
 396                 $tpl_vars = array(
 397                     'entry_id' => $id,
 398                     'tags' => $tags,
 399                     'entry' => $entry,
 400                 );
 401                 break;
 402             case 'tags':
 403                 $token = $this->user->getConfigValue('token');
 404                 //if term is set - search tags for this term
 405                 $term = Tools::checkVar('term');
 406                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 407                 if (Tools::isAjaxRequest()) {
 408                   $result = array();
 409                   foreach ($tags as $tag) {
 410                     $result[] = $tag['value'];
 411                   }
 412                   echo json_encode($result);
 413                   exit;
 414                 }
 415                 $tpl_vars = array(
 416                     'token' => $token,
 417                     'user_id' => $this->user->getId(),
 418                     'tags' => $tags,
 419                 );
 420                 break;
 421             case 'search':
 422                 if (isset($_GET['search'])) {
 423                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 424                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 425                    $count = count($tpl_vars['entries']);
 426                    $this->pagination->set_total($count);
 427                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 428                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 429                    $tpl_vars['page_links'] = $page_links;
 430                    $tpl_vars['nb_results'] = $count;
 431                    $tpl_vars['searchterm'] = $search;
 432                 }
 433                 break;
 434             case 'view':
 435                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 436                 if ($entry != NULL) {
 437                     Tools::logm('view link #' . $id);
 438                     $content = $entry['content'];
 439                     if (function_exists('tidy_parse_string')) {
 440                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 441                         $tidy->cleanRepair();
 442                         $content = $tidy->value;
 443                     }
 444
 445                     # flattr checking
 446                     $flattr = NULL;
 447                     if (FLATTR) {
 448                         $flattr = new FlattrItem();
 449                         $flattr->checkItem($entry['url'], $entry['id']);
 450                     }
 451
 452                     # tags
 453                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 454
 455                     $tpl_vars = array(
 456                         'entry' => $entry,
 457                         'content' => $content,
 458                         'flattr' => $flattr,
 459                         'tags' => $tags
 460                     );
 461                 }
 462                 else {
 463                     Tools::logm('error in view call : entry is null');
 464                 }
 465                 break;
 466             default: # home, favorites, archive and tag views
 467                 $tpl_vars = array(
 468                     'entries' => '',
 469                     'page_links' => '',
 470                     'nb_results' => '',
 471                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 472                 );
 473
 474                 //if id is given - we retrieve entries by tag: id is tag id
 475                 if ($id) {
 476                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 477                   $tpl_vars['id'] = intval($id);
 478                 }
 479
 480                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 481
 482                 if ($count > 0) {
 483                     $this->pagination->set_total($count);
 484                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 485                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 486                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 487                     $tpl_vars['page_links'] = $page_links;
 488                     $tpl_vars['nb_results'] = $count;
 489                 }
 490                 Tools::logm('display ' . $view . ' view');
 491                 break;
 492         }
 493
 494         return $tpl_vars;
 495     }
 496
 497     /**
 498      * update the password of the current user.
 499      * if MODE_DEMO is TRUE, the password can't be updated.
 500      * @todo add the return value
 501      * @todo set the new password in function header like this updatePassword($newPassword)
 502      * @return boolean
 503      */
 504     public function updatePassword($password, $confirmPassword)
 505     {
 506         if (MODE_DEMO) {
 507             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 508             Tools::logm('in demo mode, you can\'t do this');
 509             Tools::redirect('?view=config');
 510         }
 511         else {
 512             if (isset($password) && isset($confirmPassword)) {
 513                 if ($password == $confirmPassword && !empty($password)) {
 514                     $this->messages->add('s', _('your password has been updated'));
 515                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 516                     Session::logout();
 517                     Tools::logm('password updated');
 518                     Tools::redirect();
 519                 }
 520                 else {
 521                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 522                     Tools::redirect('?view=config');
 523                 }
 524             }
 525         }
 526     }
 527
 528     /**
 529      * Get credentials from differents sources
 530      * It redirects the user to the $referer link
 531      *
 532      * @return array
 533      */
 534     private function credentials()
 535     {
 536         if (isset($_SERVER['PHP_AUTH_USER'])) {
 537             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 538         }
 539         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 540             return array($_POST['login'], $_POST['password'], false);
 541         }
 542         if (isset($_SERVER['REMOTE_USER'])) {
 543             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 544         }
 545
 546         return array(false, false, false);
 547     }
 548
 549     /**
 550      * checks if login & password are correct and save the user in session.
 551      * it redirects the user to the $referer link
 552      * @param  string $referer the url to redirect after login
 553      * @todo add the return value
 554      * @return boolean
 555      */
 556     public function login($referer)
 557     {
 558         list($login,$password,$isauthenticated)=$this->credentials();
 559         if($login === false || $password === false) {
 560             $this->messages->add('e', _('login failed: you have to fill all fields'));
 561             Tools::logm('login failed');
 562             Tools::redirect();
 563         }
 564         if (!empty($login) && !empty($password)) {
 565             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 566             if ($user != array()) {
 567                 # Save login into Session
 568                 $longlastingsession = isset($_POST['longlastingsession']);
 569                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 570                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 571
 572                 # reload l10n
 573                 $language = $user['config']['language'];
 574                 @putenv('LC_ALL=' . $language);
 575                 setlocale(LC_ALL, $language);
 576                 bindtextdomain($language, LOCALE);
 577                 textdomain($language);
 578
 579                 $this->messages->add('s', _('welcome to your wallabag'));
 580                 Tools::logm('login successful');
 581                 Tools::redirect($referer);
 582             }
 583             $this->messages->add('e', _('login failed: bad login or password'));
 584             // log login failure in web server log to allow fail2ban usage
 585             error_log('user '.$login.' authentication failure');
 586             Tools::logm('login failed');
 587             Tools::redirect();
 588         }
 589     }
 590
 591     /**
 592      * log out the poche user. It cleans the session.
 593      * @todo add the return value
 594      * @return boolean
 595      */
 596     public function logout()
 597     {
 598         $this->user = array();
 599         Session::logout();
 600         Tools::logm('logout');
 601         Tools::redirect();
 602     }
 603
 604     /**
 605      * import datas into your wallabag
 606      * @return boolean
 607      */
 608
 609     public function import() {
 610
 611       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 612         Tools::logm('Import stated: parsing file');
 613
 614         // assume, that file is in json format
 615         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 616         $data = json_decode($str_data, true);
 617
 618         if ( $data === null ) {
 619           //not json - assume html
 620           $html = new simple_html_dom();
 621           $html->load_file($_FILES['file']['tmp_name']);
 622           $data = array();
 623           $read = 0;
 624           foreach (array('ol','ul') as $list) {
 625             foreach ($html->find($list) as $ul) {
 626               foreach ($ul->find('li') as $li) {
 627                 $tmpEntry = array();
 628                   $a = $li->find('a');
 629                   $tmpEntry['url'] = $a[0]->href;
 630                   $tmpEntry['tags'] = $a[0]->tags;
 631                   $tmpEntry['is_read'] = $read;
 632                   if ($tmpEntry['url']) {
 633                     $data[] = $tmpEntry;
 634                   }
 635               }
 636               # the second <ol/ul> is for read links
 637               $read = ((sizeof($data) && $read)?0:1);
 638             }
 639           }
 640         }
 641
 642             // for readability structure
 643
 644             foreach($data as $record) {
 645                 if (is_array($record)) {
 646                     $data[] = $record;
 647                     foreach($record as $record2) {
 648                         if (is_array($record2)) {
 649                             $data[] = $record2;
 650                         }
 651                     }
 652                 }
 653             }
 654
 655             $urlsInserted = array(); //urls of articles inserted
 656             foreach($data as $record) {
 657                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 658                 if ($url and !in_array($url, $urlsInserted)) {
 659                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 660                     $body = (isset($record['content']) ? $record['content'] : '');
 661                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 662                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 663
 664                     // insert new record
 665
 666                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 667                     if ($id) {
 668                         $urlsInserted[] = $url; //add
 669                         if (isset($record['tags']) && trim($record['tags'])) {
 670
 671                             $tags = explode(',', $record['tags']);
 672                                                         foreach($tags as $tag) {
 673                                                                 $entry_id = $id;
 674                                                                 $tag_id = $this->store->retrieveTagByValue($tag);
 675                                                                 if ($tag_id) {
 676                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 677                                                                 } else {
 678                                                                         $this->store->createTag($tag);
 679                                                                         $tag_id = $this->store->retrieveTagByValue($tag);
 680                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 681                                                                 }
 682                                                         }
 683
 684                         }
 685                     }
 686                 }
 687             }
 688
 689             $i = sizeof($urlsInserted);
 690             if ($i > 0) {
 691                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 692             }
 693
 694         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 695       }
 696       else {
 697         $this->messages->add('s', _('Did you forget to select a file?'));
 698       }
 699         // file parsing finished here
 700         // now download article contents if any
 701         // check if we need to download any content
 702
 703         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 704
 705         if ($recordsDownloadRequired == 0) {
 706
 707             // nothing to download
 708
 709             $this->messages->add('s', _('Import finished.'));
 710             Tools::logm('Import finished completely');
 711             Tools::redirect();
 712         }
 713         else {
 714
 715             // if just inserted - don't download anything, download will start in next reload
 716
 717             if (!isset($_FILES['file'])) {
 718
 719                 // download next batch
 720
 721                 Tools::logm('Fetching next batch of articles...');
 722                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 723                 $purifier = $this->_getPurifier();
 724                 foreach($items as $item) {
 725                     $url = new Url(base64_encode($item['url']));
 726                     Tools::logm('Fetching article ' . $item['id']);
 727                     $content = Tools::getPageContent($url);
 728                     $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 729                     $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 730
 731                     // clean content to prevent xss attack
 732
 733                     $title = $purifier->purify($title);
 734                     $body = $purifier->purify($body);
 735                     $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 736                     Tools::logm('Article ' . $item['id'] . ' updated.');
 737                 }
 738             }
 739         }
 740
 741         return array(
 742             'includeImport' => true,
 743             'import' => array(
 744                 'recordsDownloadRequired' => $recordsDownloadRequired,
 745                 'recordsUnderDownload' => IMPORT_LIMIT,
 746                 'delay' => IMPORT_DELAY * 1000
 747             )
 748         );
 749     }
 750
 751     /**
 752      * export poche entries in json
 753      * @return json all poche entries
 754      */
 755     public function export()
 756     {
 757       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 758       header('Content-Disposition: attachment; filename='.$filename);
 759
 760       $entries = $this->store->retrieveAll($this->user->getId());
 761       echo $this->tpl->render('export.twig', array(
 762           'export' => Tools::renderJson($entries),
 763       ));
 764       Tools::logm('export view');
 765     }
 766
 767     /**
 768      * Checks online the latest version of poche and cache it
 769      * @param  string $which 'prod' or 'dev'
 770      * @return string        latest $which version
 771      */
 772     private function _getPocheVersion($which = 'prod') {
 773       $cache_file = CACHE . '/' . $which;
 774       $check_time = time();
 775
 776       # checks if the cached version file exists
 777       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 778          $version = file_get_contents($cache_file);
 779          $check_time = filemtime($cache_file);
 780       } else {
 781          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 782          file_put_contents($cache_file, $version, LOCK_EX);
 783       }
 784       return array($version, $check_time);
 785     }
 786
 787     /**
 788      * Update token for current user
 789      */
 790     public function updateToken()
 791     {
 792         $token = Tools::generateToken();
 793         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 794         $currentConfig = $_SESSION['poche_user']->config;
 795         $currentConfig['token'] = $token;
 796         $_SESSION['poche_user']->setConfig($currentConfig);
 797         Tools::redirect();
 798     }
 799
 800     /**
 801      * Generate RSS feeds for current user
 802      *
 803      * @param $token
 804      * @param $user_id
 805      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 806      * @param string $type the type of feed to generate
 807      * @param int $limit the maximum number of items (0 means all)
 808      */
 809     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 810     {
 811         $allowed_types = array('home', 'fav', 'archive', 'tag');
 812         $config = $this->store->getConfigUser($user_id);
 813
 814         if ($config == null) {
 815             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 816         }
 817
 818         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 819             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 820         }
 821
 822         $feed = new FeedWriter(RSS2);
 823         $feed->setTitle('wallabag — ' . $type . ' feed');
 824         $feed->setLink(Tools::getPocheUrl());
 825         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 826         $feed->setChannelElement('generator', 'wallabag');
 827         $feed->setDescription('wallabag ' . $type . ' elements');
 828
 829         if ($type == 'tag') {
 830             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 831         }
 832         else {
 833             $entries = $this->store->getEntriesByView($type, $user_id);
 834         }
 835
 836         // if $limit is set to zero, use all entries
 837         if (0 == $limit) {
 838             $limit = count($entries);
 839         }
 840         if (count($entries) > 0) {
 841             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 842                 $entry = $entries[$i];
 843                 $newItem = $feed->createNewItem();
 844                 $newItem->setTitle($entry['title']);
 845                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 846                 $newItem->setLink($entry['url']);
 847                 $newItem->setDate(time());
 848                 $newItem->setDescription($entry['content']);
 849                 $feed->addItem($newItem);
 850             }
 851         }
 852
 853         $feed->genarateFeed();
 854         exit;
 855     }
 856
 857
 858
 859     /**
 860      * Returns new purifier object with actual config
 861      */
 862     private function _getPurifier()
 863     {
 864         $config = HTMLPurifier_Config::createDefault();
 865         $config->set('Cache.SerializerPath', CACHE);
 866         $config->set('HTML.SafeIframe', true);
 867
 868         //allow YouTube, Vimeo and dailymotion videos
 869         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 870
 871         return new HTMLPurifier($config);
 872     }
 873
 874
 875 }