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                 $this->store->archiveById($id, $this->user->getId());
 244                 Tools::logm('archive link #' . $id);
 245                 if ( Tools::isAjaxRequest() ) {
 246                   echo 1;
 247                   exit;
 248                 }
 249                 else {
 250                   Tools::redirect();
 251                 }
 252                 break;
 253             case 'archive_all' :
 254                 $this->store->archiveAll($this->user->getId());
 255                 Tools::logm('archive all links');
 256                 Tools::redirect();
 257                 break;
 258             case 'add_tag' :
 259                 if (isset($_GET['search'])) {
 260                     //when we want to apply a tag to a search
 261                     $tags = array($_GET['search']);
 262                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 263                     $entry_ids = array();
 264                     foreach ($allentry_ids as $eachentry) {
 265                         $entry_ids[] = $eachentry[0];
 266                     }
 267                 } else { //add a tag to a single article
 268                     $tags = explode(',', $_POST['value']);
 269                     $entry_ids = array($_POST['entry_id']);
 270                 }
 271                 foreach($entry_ids as $entry_id) {
 272                     $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 273                     if (!$entry) {
 274                         $this->messages->add('e', _('Article not found!'));
 275                         Tools::logm('error : article not found');
 276                         Tools::redirect();
 277                     }
 278                     //get all already set tags to preven duplicates
 279                     $already_set_tags = array();
 280                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 281                     foreach ($entry_tags as $tag) {
 282                       $already_set_tags[] = $tag['value'];
 283                     }
 284                     foreach($tags as $key => $tag_value) {
 285                         $value = trim($tag_value);
 286                         if ($value && !in_array($value, $already_set_tags)) {
 287                           $tag = $this->store->retrieveTagByValue($value);
 288                           if (is_null($tag)) {
 289                               # we create the tag
 290                               $tag = $this->store->createTag($value);
 291                               $sequence = '';
 292                               if (STORAGE == 'postgres') {
 293                                   $sequence = 'tags_id_seq';
 294                               }
 295                               $tag_id = $this->store->getLastId($sequence);
 296                           }
 297                           else {
 298                               $tag_id = $tag['id'];
 299                           }
 300
 301                           # we assign the tag to the article
 302                           $this->store->setTagToEntry($tag_id, $entry_id);
 303                         }
 304                     }
 305                 }
 306                 $this->messages->add('s', _('The tag has been applied successfully'));
 307                 Tools::logm('The tag has been applied successfully');
 308                 Tools::redirect();
 309                 break;
 310             case 'remove_tag' :
 311                 $tag_id = $_GET['tag_id'];
 312                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 313                 if (!$entry) {
 314                     $this->messages->add('e', _('Article not found!'));
 315                     Tools::logm('error : article not found');
 316                     Tools::redirect();
 317                 }
 318                 $this->store->removeTagForEntry($id, $tag_id);
 319                 Tools::logm('tag entry deleted');
 320                 if ($this->store->cleanUnusedTag($tag_id)) {
 321                     Tools::logm('tag deleted');
 322                 }
 323                 $this->messages->add('s', _('The tag has been successfully deleted'));
 324                 Tools::redirect();
 325                 break;
 326             default:
 327                 break;
 328         }
 329     }
 330
 331     function displayView($view, $id = 0)
 332     {
 333         $tpl_vars = array();
 334
 335         switch ($view)
 336         {
 337             case 'about':
 338                 break;
 339             case 'config':
 340                 $dev_infos = $this->_getPocheVersion('dev');
 341                 $dev = trim($dev_infos[0]);
 342                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 343                 $prod_infos = $this->_getPocheVersion('prod');
 344                 $prod = trim($prod_infos[0]);
 345                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 346                 $compare_dev = version_compare(POCHE, $dev);
 347                 $compare_prod = version_compare(POCHE, $prod);
 348                 $themes = $this->tpl->getInstalledThemes();
 349                 $languages = $this->language->getInstalledLanguages();
 350                 $token = $this->user->getConfigValue('token');
 351                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 352                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 353                 $tpl_vars = array(
 354                     'themes' => $themes,
 355                     'languages' => $languages,
 356                     'dev' => $dev,
 357                     'prod' => $prod,
 358                     'check_time_dev' => $check_time_dev,
 359                     'check_time_prod' => $check_time_prod,
 360                     'compare_dev' => $compare_dev,
 361                     'compare_prod' => $compare_prod,
 362                     'token' => $token,
 363                     'user_id' => $this->user->getId(),
 364                     'http_auth' => $http_auth,
 365                     'only_user' => $only_user
 366                 );
 367                 Tools::logm('config view');
 368                 break;
 369             case 'edit-tags':
 370                 # tags
 371                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 372                 if (!$entry) {
 373                     $this->messages->add('e', _('Article not found!'));
 374                     Tools::logm('error : article not found');
 375                     Tools::redirect();
 376                 }
 377                 $tags = $this->store->retrieveTagsByEntry($id);
 378                 $tpl_vars = array(
 379                     'entry_id' => $id,
 380                     'tags' => $tags,
 381                     'entry' => $entry,
 382                 );
 383                 break;
 384             case 'tags':
 385                 $token = $this->user->getConfigValue('token');
 386                 //if term is set - search tags for this term
 387                 $term = Tools::checkVar('term');
 388                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 389                 if (Tools::isAjaxRequest()) {
 390                   $result = array();
 391                   foreach ($tags as $tag) {
 392                     $result[] = $tag['value'];
 393                   }
 394                   echo json_encode($result);
 395                   exit;
 396                 }
 397                 $tpl_vars = array(
 398                     'token' => $token,
 399                     'user_id' => $this->user->getId(),
 400                     'tags' => $tags,
 401                 );
 402                 break;
 403             case 'search':
 404                 if (isset($_GET['search'])) {
 405                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 406                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 407                    $count = count($tpl_vars['entries']);
 408                    $this->pagination->set_total($count);
 409                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 410                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 411                    $tpl_vars['page_links'] = $page_links;
 412                    $tpl_vars['nb_results'] = $count;
 413                    $tpl_vars['searchterm'] = $search;
 414                 }
 415                 break;
 416             case 'view':
 417                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 418                 if ($entry != NULL) {
 419                     Tools::logm('view link #' . $id);
 420                     $content = $entry['content'];
 421                     if (function_exists('tidy_parse_string')) {
 422                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 423                         $tidy->cleanRepair();
 424                         $content = $tidy->value;
 425                     }
 426
 427                     # flattr checking
 428                     $flattr = NULL;
 429                     if (FLATTR) {
 430                         $flattr = new FlattrItem();
 431                         $flattr->checkItem($entry['url'], $entry['id']);
 432                     }
 433
 434                     # tags
 435                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 436
 437                     $tpl_vars = array(
 438                         'entry' => $entry,
 439                         'content' => $content,
 440                         'flattr' => $flattr,
 441                         'tags' => $tags
 442                     );
 443                 }
 444                 else {
 445                     Tools::logm('error in view call : entry is null');
 446                 }
 447                 break;
 448             default: # home, favorites, archive and tag views
 449                 $tpl_vars = array(
 450                     'entries' => '',
 451                     'page_links' => '',
 452                     'nb_results' => '',
 453                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 454                 );
 455
 456                 //if id is given - we retrieve entries by tag: id is tag id
 457                 if ($id) {
 458                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 459                   $tpl_vars['id'] = intval($id);
 460                 }
 461
 462                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 463
 464                 if ($count > 0) {
 465                     $this->pagination->set_total($count);
 466                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 467                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 468                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 469                     $tpl_vars['page_links'] = $page_links;
 470                     $tpl_vars['nb_results'] = $count;
 471                 }
 472                 Tools::logm('display ' . $view . ' view');
 473                 break;
 474         }
 475
 476         return $tpl_vars;
 477     }
 478
 479     /**
 480      * update the password of the current user.
 481      * if MODE_DEMO is TRUE, the password can't be updated.
 482      * @todo add the return value
 483      * @todo set the new password in function header like this updatePassword($newPassword)
 484      * @return boolean
 485      */
 486     public function updatePassword($password, $confirmPassword)
 487     {
 488         if (MODE_DEMO) {
 489             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 490             Tools::logm('in demo mode, you can\'t do this');
 491             Tools::redirect('?view=config');
 492         }
 493         else {
 494             if (isset($password) && isset($confirmPassword)) {
 495                 if ($password == $confirmPassword && !empty($password)) {
 496                     $this->messages->add('s', _('your password has been updated'));
 497                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 498                     Session::logout();
 499                     Tools::logm('password updated');
 500                     Tools::redirect();
 501                 }
 502                 else {
 503                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 504                     Tools::redirect('?view=config');
 505                 }
 506             }
 507         }
 508     }
 509
 510     /**
 511      * Get credentials from differents sources
 512      * It redirects the user to the $referer link
 513      *
 514      * @return array
 515      */
 516     private function credentials()
 517     {
 518         if (isset($_SERVER['PHP_AUTH_USER'])) {
 519             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 520         }
 521         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 522             return array($_POST['login'], $_POST['password'], false);
 523         }
 524         if (isset($_SERVER['REMOTE_USER'])) {
 525             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 526         }
 527
 528         return array(false, false, false);
 529     }
 530
 531     /**
 532      * checks if login & password are correct and save the user in session.
 533      * it redirects the user to the $referer link
 534      * @param  string $referer the url to redirect after login
 535      * @todo add the return value
 536      * @return boolean
 537      */
 538     public function login($referer)
 539     {
 540         list($login,$password,$isauthenticated)=$this->credentials();
 541         if($login === false || $password === false) {
 542             $this->messages->add('e', _('login failed: you have to fill all fields'));
 543             Tools::logm('login failed');
 544             Tools::redirect();
 545         }
 546         if (!empty($login) && !empty($password)) {
 547             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 548             if ($user != array()) {
 549                 # Save login into Session
 550                 $longlastingsession = isset($_POST['longlastingsession']);
 551                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 552                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 553
 554                 # reload l10n
 555                 $language = $user['config']['language'];
 556                 @putenv('LC_ALL=' . $language);
 557                 setlocale(LC_ALL, $language);
 558                 bindtextdomain($language, LOCALE);
 559                 textdomain($language);
 560
 561                 $this->messages->add('s', _('welcome to your wallabag'));
 562                 Tools::logm('login successful');
 563                 Tools::redirect($referer);
 564             }
 565             $this->messages->add('e', _('login failed: bad login or password'));
 566             Tools::logm('login failed');
 567             Tools::redirect();
 568         }
 569     }
 570
 571     /**
 572      * log out the poche user. It cleans the session.
 573      * @todo add the return value
 574      * @return boolean
 575      */
 576     public function logout()
 577     {
 578         $this->user = array();
 579         Session::logout();
 580         Tools::logm('logout');
 581         Tools::redirect();
 582     }
 583
 584     /**
 585      * import datas into your wallabag
 586      * @return boolean
 587      */
 588
 589     public function import() {
 590
 591       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 592         Tools::logm('Import stated: parsing file');
 593
 594         // assume, that file is in json format
 595         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 596         $data = json_decode($str_data, true);
 597
 598         if ( $data === null ) {
 599           //not json - assume html
 600           $html = new simple_html_dom();
 601           $html->load_file($_FILES['file']['tmp_name']);
 602           $data = array();
 603           $read = 0;
 604           foreach (array('ol','ul') as $list) {
 605             foreach ($html->find($list) as $ul) {
 606               foreach ($ul->find('li') as $li) {
 607                 $tmpEntry = array();
 608                   $a = $li->find('a');
 609                   $tmpEntry['url'] = $a[0]->href;
 610                   $tmpEntry['tags'] = $a[0]->tags;
 611                   $tmpEntry['is_read'] = $read;
 612                   if ($tmpEntry['url']) {
 613                     $data[] = $tmpEntry;
 614                   }
 615               }
 616               # the second <ol/ul> is for read links
 617               $read = ((sizeof($data) && $read)?0:1);
 618             }
 619           }
 620         }
 621
 622             // for readability structure
 623
 624             foreach($data as $record) {
 625                 if (is_array($record)) {
 626                     $data[] = $record;
 627                     foreach($record as $record2) {
 628                         if (is_array($record2)) {
 629                             $data[] = $record2;
 630                         }
 631                     }
 632                 }
 633             }
 634
 635             $urlsInserted = array(); //urls of articles inserted
 636             foreach($data as $record) {
 637                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 638                 if ($url and !in_array($url, $urlsInserted)) {
 639                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 640                     $body = (isset($record['content']) ? $record['content'] : '');
 641                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 642                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 643
 644                     // insert new record
 645
 646                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 647                     if ($id) {
 648                         $urlsInserted[] = $url; //add
 649                         if (isset($record['tags']) && trim($record['tags'])) {
 650
 651                             // @TODO: set tags
 652
 653                         }
 654                     }
 655                 }
 656             }
 657
 658             $i = sizeof($urlsInserted);
 659             if ($i > 0) {
 660                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 661             }
 662
 663         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 664       }
 665       else {
 666         $this->messages->add('s', _('Did you forget to select a file?'));
 667       }
 668         // file parsing finished here
 669         // now download article contents if any
 670         // check if we need to download any content
 671
 672         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 673
 674         if ($recordsDownloadRequired == 0) {
 675
 676             // nothing to download
 677
 678             $this->messages->add('s', _('Import finished.'));
 679             Tools::logm('Import finished completely');
 680             Tools::redirect();
 681         }
 682         else {
 683
 684             // if just inserted - don't download anything, download will start in next reload
 685
 686             if (!isset($_FILES['file'])) {
 687
 688                 // download next batch
 689
 690                 Tools::logm('Fetching next batch of articles...');
 691                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 692                 $purifier = $this->_getPurifier();
 693                 foreach($items as $item) {
 694                     $url = new Url(base64_encode($item['url']));
 695                     Tools::logm('Fetching article ' . $item['id']);
 696                     $content = Tools::getPageContent($url);
 697                     $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 698                     $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 699
 700                     // clean content to prevent xss attack
 701
 702                     $title = $purifier->purify($title);
 703                     $body = $purifier->purify($body);
 704                     $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 705                     Tools::logm('Article ' . $item['id'] . ' updated.');
 706                 }
 707             }
 708         }
 709
 710         return array(
 711             'includeImport' => true,
 712             'import' => array(
 713                 'recordsDownloadRequired' => $recordsDownloadRequired,
 714                 'recordsUnderDownload' => IMPORT_LIMIT,
 715                 'delay' => IMPORT_DELAY * 1000
 716             )
 717         );
 718     }
 719
 720     /**
 721      * export poche entries in json
 722      * @return json all poche entries
 723      */
 724     public function export()
 725     {
 726       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 727       header('Content-Disposition: attachment; filename='.$filename);
 728
 729       $entries = $this->store->retrieveAll($this->user->getId());
 730       echo $this->tpl->render('export.twig', array(
 731           'export' => Tools::renderJson($entries),
 732       ));
 733       Tools::logm('export view');
 734     }
 735
 736     /**
 737      * Checks online the latest version of poche and cache it
 738      * @param  string $which 'prod' or 'dev'
 739      * @return string        latest $which version
 740      */
 741     private function _getPocheVersion($which = 'prod') {
 742       $cache_file = CACHE . '/' . $which;
 743       $check_time = time();
 744
 745       # checks if the cached version file exists
 746       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 747          $version = file_get_contents($cache_file);
 748          $check_time = filemtime($cache_file);
 749       } else {
 750          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 751          file_put_contents($cache_file, $version, LOCK_EX);
 752       }
 753       return array($version, $check_time);
 754     }
 755
 756     /**
 757      * Update token for current user
 758      */
 759     public function updateToken()
 760     {
 761         $token = Tools::generateToken();
 762         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 763         $currentConfig = $_SESSION['poche_user']->config;
 764         $currentConfig['token'] = $token;
 765         $_SESSION['poche_user']->setConfig($currentConfig);
 766         Tools::redirect();
 767     }
 768
 769     /**
 770      * Generate RSS feeds for current user
 771      *
 772      * @param $token
 773      * @param $user_id
 774      * @param $tag_id
 775      * @param string $type
 776      */
 777     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
 778     {
 779         $allowed_types = array('home', 'fav', 'archive', 'tag');
 780         $config = $this->store->getConfigUser($user_id);
 781
 782         if ($config == null) {
 783             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 784         }
 785
 786         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 787             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 788         }
 789
 790         $feed = new FeedWriter(RSS2);
 791         $feed->setTitle('wallabag — ' . $type . ' feed');
 792         $feed->setLink(Tools::getPocheUrl());
 793         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 794         $feed->setChannelElement('generator', 'wallabag');
 795         $feed->setDescription('wallabag ' . $type . ' elements');
 796
 797         if ($type == 'tag') {
 798             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 799         }
 800         else {
 801             $entries = $this->store->getEntriesByView($type, $user_id);
 802         }
 803
 804         if (count($entries) > 0) {
 805             foreach ($entries as $entry) {
 806                 $newItem = $feed->createNewItem();
 807                 $newItem->setTitle($entry['title']);
 808                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 809                 $newItem->setLink($entry['url']);
 810                 $newItem->setDate(time());
 811                 $newItem->setDescription($entry['content']);
 812                 $feed->addItem($newItem);
 813             }
 814         }
 815
 816         $feed->genarateFeed();
 817         exit;
 818     }
 819
 820
 821
 822     /**
 823      * Returns new purifier object with actual config
 824      */
 825     private function _getPurifier()
 826     {
 827         $config = HTMLPurifier_Config::createDefault();
 828         $config->set('Cache.SerializerPath', CACHE);
 829         $config->set('HTML.SafeIframe', true);
 830
 831         //allow YouTube, Vimeo and dailymotion videos
 832         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 833
 834         return new HTMLPurifier($config);
 835     }
 836
 837
 838 }