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 = "", $internalRegistration = false)
  78     {
  79         Tools::logm('Trying to create a new user...');
  80         if (!empty($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), $email)) {
  85                     if ($email != "") { // if email is filled
  86                         if (SEND_CONFIRMATION_EMAIL && function_exists('mail')) {
  87
  88                             // if internal registration from config screen
  89                             $body_internal = _('Hi,') . "\r\n\r\n" . sprintf(_('Someone just created a wallabag account for you on %1$s.'), Tools::getPocheUrl()) .
  90                             "\r\n\r\n" . sprintf(_('Your login is %1$s.'), $newUsername) ."\r\n\r\n" .
  91                             _('Note : The password has been chosen by the person who created your account. Get in touch with that person to know your password and change it as soon as possible') . "\r\n\r\n" .
  92                             _('Have fun with it !') . "\r\n\r\n" .
  93                             _('This is an automatically generated message, no one will answer if you respond to it.');
  94
  95                             // if external (public) registration
  96                             $body = sprintf(_('Hi, %1$s'), $newUsername) . "\r\n\r\n" .
  97                             sprintf(_('You\'ve just created a wallabag account on %1$s.'), Tools::getPocheUrl()) .
  98                             "\r\n\r\n" . _("Have fun with it !");
  99
 100                             $body = $internalRegistration ? $body_internal : $body;
 101
 102                             $body = wordwrap($body, 70, "\r\n"); // cut lines with more than 70 caracters (MIME standard)
 103                             if (mail($email, sprintf(_('Your new wallabag account on %1$s'), Tools::getPocheUrl()), $body,
 104                                 'X-Mailer: PHP/' . phpversion() .  "\r\n" .
 105                                 'Content-type: text/plain; charset=UTF-8' . "\r\n" .
 106                                 "From: " . $newUsername . "@" . gethostname() . "\r\n")) {
 107                                 Tools::logm('The user ' . $newUsername . ' has been emailed');
 108                                 $this->messages->add('i', sprintf(_('The new user %1$s has been sent an email at %2$s. You may have to check spam folder.'), $newUsername, $email));
 109                                 Tools::redirect('?');
 110
 111                             } else {
 112                                 Tools::logm('A problem has been encountered while sending an email');
 113                                 $this->messages->add('e', _('A problem has been encountered while sending an email'));
 114                             }
 115                         } else {
 116                             Tools::logm('The user has been created, but the server did not authorize sending emails');
 117                             $this->messages->add('i', _('The server did not authorize sending a confirmation email, but the user was created.'));
 118                         }
 119                 } else {
 120                     Tools::logm('The user has been created, but no email was saved, so no confimation email was sent');
 121                     $this->messages->add('i', _('The user was created, but no email was sent because email was not filled in'));
 122                 }
 123                 Tools::logm('The new user ' . $newUsername . ' has been installed');
 124                 if (\Session::isLogged()) {
 125                     $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'), $newUsername));
 126                 }
 127                 Tools::redirect();
 128                 }
 129                 else {
 130                     Tools::logm('error during adding new user');
 131                     Tools::redirect();
 132                 }
 133             }
 134             else {
 135                 $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'), $newUsername));
 136                 Tools::logm('An user with the name ' . $newUsername . ' already exists !');
 137                 Tools::redirect();
 138             }
 139         }
 140         else {
 141             Tools::logm('Password or username were empty');
 142         }
 143     }
 144
 145     /**
 146      * Delete an existing user
 147      */
 148     public function deleteUser($password)
 149     {
 150         if ($this->store->listUsers() > 1) {
 151             if (Tools::encodeString($password . $this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
 152                 $username = $this->user->getUsername();
 153                 $this->store->deleteUserConfig($this->user->getId());
 154                 Tools::logm('The configuration for user '. $username .' has been deleted !');
 155                 $this->store->deleteTagsEntriesAndEntries($this->user->getId());
 156                 Tools::logm('The entries for user '. $username .' has been deleted !');
 157                 $this->store->deleteUser($this->user->getId());
 158                 Tools::logm('User '. $username .' has been completely deleted !');
 159                 Session::logout();
 160                 Tools::logm('logout');
 161                 Tools::redirect();
 162                 $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'), $username));
 163             }
 164             else {
 165                 Tools::logm('Bad password !');
 166                 $this->messages->add('e', _('Error : The password is wrong !'));
 167             }
 168         }
 169         else {
 170             Tools::logm('Only user !');
 171             $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
 172         }
 173     }
 174
 175     public function getDefaultConfig()
 176     {
 177         return array(
 178             'pager' => PAGINATION,
 179             'language' => LANG,
 180             'theme' => DEFAULT_THEME
 181         );
 182     }
 183
 184     /**
 185      * Call action (mark as fav, archive, delete, etc.)
 186      */
 187     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 188     {
 189         switch ($action)
 190         {
 191             case 'add':
 192                 $content = Tools::getPageContent($url);
 193                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 194                 $body = $content['rss']['channel']['item']['description'];
 195
 196                 // clean content from prevent xss attack
 197                 $purifier = $this->_getPurifier();
 198                 $title = $purifier->purify($title);
 199                 $body = $purifier->purify($body);
 200
 201                 //search for possible duplicate
 202                 $duplicate = NULL;
 203                 $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 204
 205                 $last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
 206                 if ( $last_id ) {
 207                     Tools::logm('add link ' . $url->getUrl());
 208                     if (DOWNLOAD_PICTURES) {
 209                         $content = Picture::filterPicture($body, $url->getUrl(), $last_id);
 210                         Tools::logm('updating content article');
 211                         $this->store->updateContent($last_id, $content, $this->user->getId());
 212                     }
 213
 214                     if ($duplicate != NULL) {
 215                         // 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
 216                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 217                         // 1) - preserve tags and favorite, then drop old entry
 218                         $this->store->reassignTags($duplicate['id'], $last_id);
 219                         if ($duplicate['is_fav']) {
 220                           $this->store->favoriteById($last_id, $this->user->getId());
 221                         }
 222                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 223                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 224                         }
 225                     }
 226
 227                     // if there are tags, add them to the new article
 228                     if (isset($_GET['tags'])) {
 229                         $_POST['value'] = $_GET['tags'];
 230                         $_POST['entry_id'] = $last_id;
 231                         $this->action('add_tag', $url);
 232                     }
 233
 234                     $this->messages->add('s', _('the link has been added successfully'));
 235                 }
 236                 else {
 237                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 238                     Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 239                 }
 240
 241                 if ($autoclose == TRUE) {
 242                     Tools::redirect('?view=home&closewin=true');
 243                 } else {
 244                     Tools::redirect('?view=home');
 245                 }
 246                 return $last_id;
 247                 break;
 248             case 'delete':
 249                 if (isset($_GET['search'])) {
 250                     //when we want to apply a delete to a search
 251                     $tags = array($_GET['search']);
 252                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 253                     $entry_ids = array();
 254                     foreach ($allentry_ids as $eachentry) {
 255                         $entry_ids[] = $eachentry[0];
 256                     }
 257                 } else { // delete a single article
 258                     $entry_ids = array($id);
 259                 }
 260                 foreach($entry_ids as $id) {
 261                     $msg = 'delete link #' . $id;
 262                     if ($this->store->deleteById($id, $this->user->getId())) {
 263                         if (DOWNLOAD_PICTURES) {
 264                             Picture::removeDirectory(ABS_PATH . $id);
 265                         }
 266                         $this->messages->add('s', _('the link has been deleted successfully'));
 267                     }
 268                     else {
 269                         $this->messages->add('e', _('the link wasn\'t deleted'));
 270                         $msg = 'error : can\'t delete link #' . $id;
 271                     }
 272                     Tools::logm($msg);
 273                 }
 274                 Tools::redirect('?');
 275                 break;
 276             case 'toggle_fav' :
 277                 $this->store->favoriteById($id, $this->user->getId());
 278                 Tools::logm('mark as favorite link #' . $id);
 279                 if ( Tools::isAjaxRequest() ) {
 280                   echo 1;
 281                   exit;
 282                 }
 283                 else {
 284                   Tools::redirect();
 285                 }
 286                 break;
 287             case 'toggle_archive' :
 288                 if (isset($_GET['tag_id'])) {
 289                     //when we want to archive a whole tag
 290                     $tag_id = $_GET['tag_id'];
 291                     $allentry_ids = $this->store->retrieveEntriesByTag($tag_id, $this->user->getId());
 292                     $entry_ids = array();
 293                     foreach ($allentry_ids as $eachentry) {
 294                         $entry_ids[] = $eachentry[0];
 295                     }
 296                 } else { //archive a single article
 297                     $entry_ids = array($id);
 298                 }
 299                 foreach($entry_ids as $id) {
 300                     $this->store->archiveById($id, $this->user->getId());
 301                     Tools::logm('archive link #' . $id);
 302                 }
 303                 if ( Tools::isAjaxRequest() ) {
 304                   echo 1;
 305                   exit;
 306                 }
 307                 else {
 308                   Tools::redirect();
 309                 }
 310                 break;
 311             case 'archive_all' :
 312                 $this->store->archiveAll($this->user->getId());
 313                 Tools::logm('archive all links');
 314                 Tools::redirect();
 315                 break;
 316             case 'add_tag' :
 317                 if (isset($_GET['search'])) {
 318                     //when we want to apply a tag to a search
 319                     $tags = array($_GET['search']);
 320                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 321                     $entry_ids = array();
 322                     foreach ($allentry_ids as $eachentry) {
 323                         $entry_ids[] = $eachentry[0];
 324                     }
 325                 } else { //add a tag to a single article
 326                     $tags = explode(',', $_POST['value']);
 327                     $entry_ids = array($_POST['entry_id']);
 328                 }
 329                 foreach($entry_ids as $entry_id) {
 330                     $entry = $this->store->retrieveOneById($entry_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                     //get all already set tags to preven duplicates
 337                     $already_set_tags = array();
 338                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 339                     foreach ($entry_tags as $tag) {
 340                       $already_set_tags[] = $tag['value'];
 341                     }
 342                     foreach($tags as $key => $tag_value) {
 343                         $value = trim($tag_value);
 344                         if ($value && !in_array($value, $already_set_tags)) {
 345                           $tag = $this->store->retrieveTagByValue($value);
 346                           if (is_null($tag)) {
 347                               # we create the tag
 348                               $tag = $this->store->createTag($value);
 349                               $sequence = '';
 350                               if (STORAGE == 'postgres') {
 351                                   $sequence = 'tags_id_seq';
 352                               }
 353                               $tag_id = $this->store->getLastId($sequence);
 354                           }
 355                           else {
 356                               $tag_id = $tag['id'];
 357                           }
 358
 359                           # we assign the tag to the article
 360                           $this->store->setTagToEntry($tag_id, $entry_id);
 361                         }
 362                     }
 363                 }
 364                 $this->messages->add('s', _('The tag has been applied successfully'));
 365                 Tools::logm('The tag has been applied successfully');
 366                 Tools::redirect();
 367                 break;
 368             case 'remove_tag' :
 369                 $tag_id = $_GET['tag_id'];
 370                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 371                 if (!$entry) {
 372                     $this->messages->add('e', _('Article not found!'));
 373                     Tools::logm('error : article not found');
 374                     Tools::redirect();
 375                 }
 376                 $this->store->removeTagForEntry($id, $tag_id);
 377                 Tools::logm('tag entry deleted');
 378                 if ($this->store->cleanUnusedTag($tag_id)) {
 379                     Tools::logm('tag deleted');
 380                 }
 381                 $this->messages->add('s', _('The tag has been successfully deleted'));
 382                 Tools::redirect();
 383                 break;
 384
 385             case 'reload_article' :
 386                 Tools::logm('reload article');
 387                 $id = $_GET['id'];
 388                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 389                 Tools::logm('reload url ' . $entry['url']);
 390                 $url = new Url(base64_encode($entry['url']));
 391                 $this->action('add', $url);
 392                 break;
 393
 394             /* For some unknown reason I can't get displayView() to work here (it redirects to home view afterwards). So here's a dirty fix which redirects directly to URL */
 395             case 'random':
 396                 $id = 0;
 397                 while ($this->store->retrieveOneById($id,$this->user->getId()) == null) {
 398                     $count = $this->store->getEntriesByViewCount($view, $this->user->getId());
 399                     $id = rand(1,$count);
 400                 }
 401                 Tools::logm('get a random article');
 402                 Tools::redirect('?view=view&id=' . $id);
 403                 //$this->displayView('view', $id);
 404                 break;
 405             default:
 406                 break;
 407         }
 408     }
 409
 410     function displayView($view, $id = 0)
 411     {
 412         $tpl_vars = array();
 413
 414         switch ($view)
 415         {
 416             case 'about':
 417                 break;
 418             case 'config':
 419                 $dev_infos = $this->_getPocheVersion('dev');
 420                 $dev = trim($dev_infos[0]);
 421                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 422                 $prod_infos = $this->_getPocheVersion('prod');
 423                 $prod = trim($prod_infos[0]);
 424                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 425                 $compare_dev = version_compare(POCHE, $dev);
 426                 $compare_prod = version_compare(POCHE, $prod);
 427                 $themes = $this->tpl->getInstalledThemes();
 428                 $languages = $this->language->getInstalledLanguages();
 429                 $token = $this->user->getConfigValue('token');
 430                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 431                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 432                 $tpl_vars = array(
 433                     'themes' => $themes,
 434                     'languages' => $languages,
 435                     'dev' => $dev,
 436                     'prod' => $prod,
 437                     'check_time_dev' => $check_time_dev,
 438                     'check_time_prod' => $check_time_prod,
 439                     'compare_dev' => $compare_dev,
 440                     'compare_prod' => $compare_prod,
 441                     'token' => $token,
 442                     'user_id' => $this->user->getId(),
 443                     'http_auth' => $http_auth,
 444                     'only_user' => $only_user
 445                 );
 446                 Tools::logm('config view');
 447                 break;
 448             case 'edit-tags':
 449                 # tags
 450                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 451                 if (!$entry) {
 452                     $this->messages->add('e', _('Article not found!'));
 453                     Tools::logm('error : article not found');
 454                     Tools::redirect();
 455                 }
 456                 $tags = $this->store->retrieveTagsByEntry($id);
 457                 $tpl_vars = array(
 458                     'entry_id' => $id,
 459                     'tags' => $tags,
 460                     'entry' => $entry,
 461                 );
 462                 break;
 463             case 'tags':
 464                 $token = $this->user->getConfigValue('token');
 465                 //if term is set - search tags for this term
 466                 $term = Tools::checkVar('term');
 467                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 468                 if (Tools::isAjaxRequest()) {
 469                   $result = array();
 470                   foreach ($tags as $tag) {
 471                     $result[] = $tag['value'];
 472                   }
 473                   echo json_encode($result);
 474                   exit;
 475                 }
 476                 $tpl_vars = array(
 477                     'token' => $token,
 478                     'user_id' => $this->user->getId(),
 479                     'tags' => $tags,
 480                 );
 481                 break;
 482             case 'search':
 483                 if (isset($_GET['search'])) {
 484                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 485                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 486                    $count = count($tpl_vars['entries']);
 487                    $this->pagination->set_total($count);
 488                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 489                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 490                    $tpl_vars['page_links'] = $page_links;
 491                    $tpl_vars['nb_results'] = $count;
 492                    $tpl_vars['searchterm'] = $search;
 493                 }
 494                 break;
 495             case 'view':
 496                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 497                 if ($entry != NULL) {
 498                     Tools::logm('view link #' . $id);
 499                     $content = $entry['content'];
 500                     if (function_exists('tidy_parse_string')) {
 501                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 502                         $tidy->cleanRepair();
 503                         $content = $tidy->value;
 504                     }
 505
 506                     # flattr checking
 507                     $flattr = NULL;
 508                     if (FLATTR) {
 509                         $flattr = new FlattrItem();
 510                         $flattr->checkItem($entry['url'], $entry['id']);
 511                     }
 512
 513                     # tags
 514                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 515
 516                     $tpl_vars = array(
 517                         'entry' => $entry,
 518                         'content' => $content,
 519                         'flattr' => $flattr,
 520                         'tags' => $tags
 521                     );
 522                 }
 523                 else {
 524                     Tools::logm('error in view call : entry is null');
 525                 }
 526                 break;
 527             default: # home, favorites, archive and tag views
 528                 $tpl_vars = array(
 529                     'entries' => '',
 530                     'page_links' => '',
 531                     'nb_results' => '',
 532                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 533                 );
 534
 535                 //if id is given - we retrieve entries by tag: id is tag id
 536                 if ($id) {
 537                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 538                   $tpl_vars['id'] = intval($id);
 539                 }
 540
 541                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 542
 543                 if ($count > 0) {
 544                     $this->pagination->set_total($count);
 545                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 546                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 547                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 548                     $tpl_vars['page_links'] = $page_links;
 549                     $tpl_vars['nb_results'] = $count;
 550                 }
 551                 Tools::logm('display ' . $view . ' view');
 552                 break;
 553         }
 554
 555         return $tpl_vars;
 556     }
 557
 558     /**
 559      * update the password of the current user.
 560      * if MODE_DEMO is TRUE, the password can't be updated.
 561      * @todo add the return value
 562      * @todo set the new password in function header like this updatePassword($newPassword)
 563      * @return boolean
 564      */
 565     public function updatePassword($password, $confirmPassword)
 566     {
 567         if (MODE_DEMO) {
 568             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 569             Tools::logm('in demo mode, you can\'t do this');
 570             Tools::redirect('?view=config');
 571         }
 572         else {
 573             if (isset($password) && isset($confirmPassword)) {
 574                 if ($password == $confirmPassword && !empty($password)) {
 575                     $this->messages->add('s', _('your password has been updated'));
 576                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 577                     Session::logout();
 578                     Tools::logm('password updated');
 579                     Tools::redirect();
 580                 }
 581                 else {
 582                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 583                     Tools::redirect('?view=config');
 584                 }
 585             }
 586         }
 587     }
 588
 589     /**
 590      * Get credentials from differents sources
 591      * It redirects the user to the $referer link
 592      *
 593      * @return array
 594      */
 595     private function credentials()
 596     {
 597         if (isset($_SERVER['PHP_AUTH_USER'])) {
 598             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 599         }
 600         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 601             return array($_POST['login'], $_POST['password'], false);
 602         }
 603         if (isset($_SERVER['REMOTE_USER'])) {
 604             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 605         }
 606
 607         return array(false, false, false);
 608     }
 609
 610     /**
 611      * checks if login & password are correct and save the user in session.
 612      * it redirects the user to the $referer link
 613      * @param  string $referer the url to redirect after login
 614      * @todo add the return value
 615      * @return boolean
 616      */
 617     public function login($referer)
 618     {
 619         list($login,$password,$isauthenticated)=$this->credentials();
 620         if($login === false || $password === false) {
 621             $this->messages->add('e', _('login failed: you have to fill all fields'));
 622             Tools::logm('login failed');
 623             Tools::redirect();
 624         }
 625         if (!empty($login) && !empty($password)) {
 626             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 627             if ($user != array()) {
 628                 # Save login into Session
 629                 $longlastingsession = isset($_POST['longlastingsession']);
 630                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 631                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 632
 633                 # reload l10n
 634                 $language = $user['config']['language'];
 635                 @putenv('LC_ALL=' . $language);
 636                 setlocale(LC_ALL, $language);
 637                 bindtextdomain($language, LOCALE);
 638                 textdomain($language);
 639
 640                 $this->messages->add('s', _('welcome to your wallabag'));
 641                 Tools::logm('login successful');
 642                 Tools::redirect($referer);
 643             }
 644             $this->messages->add('e', _('login failed: bad login or password'));
 645             // log login failure in web server log to allow fail2ban usage
 646             error_log('user '.$login.' authentication failure');
 647             Tools::logm('login failed');
 648             Tools::redirect();
 649         }
 650     }
 651
 652     /**
 653      * log out the poche user. It cleans the session.
 654      * @todo add the return value
 655      * @return boolean
 656      */
 657     public function logout()
 658     {
 659         $this->user = array();
 660         Session::logout();
 661         Tools::logm('logout');
 662         Tools::redirect();
 663     }
 664
 665     /**
 666      * import datas into your wallabag
 667      * @return boolean
 668      */
 669
 670     public function import() {
 671
 672       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 673         Tools::logm('Import stated: parsing file');
 674
 675         // assume, that file is in json format
 676         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 677         $data = json_decode($str_data, true);
 678
 679         if ( $data === null ) {
 680           //not json - assume html
 681           $html = new simple_html_dom();
 682           $html->load_file($_FILES['file']['tmp_name']);
 683           $data = array();
 684           $read = 0;
 685           foreach (array('ol','ul') as $list) {
 686             foreach ($html->find($list) as $ul) {
 687               foreach ($ul->find('li') as $li) {
 688                 $tmpEntry = array();
 689                   $a = $li->find('a');
 690                   $tmpEntry['url'] = $a[0]->href;
 691                   $tmpEntry['tags'] = $a[0]->tags;
 692                   $tmpEntry['is_read'] = $read;
 693                   if ($tmpEntry['url']) {
 694                     $data[] = $tmpEntry;
 695                   }
 696               }
 697               # the second <ol/ul> is for read links
 698               $read = ((sizeof($data) && $read)?0:1);
 699             }
 700           }
 701         }
 702
 703             // for readability structure
 704
 705             foreach($data as $record) {
 706                 if (is_array($record)) {
 707                     $data[] = $record;
 708                     foreach($record as $record2) {
 709                         if (is_array($record2)) {
 710                             $data[] = $record2;
 711                         }
 712                     }
 713                 }
 714             }
 715
 716             $urlsInserted = array(); //urls of articles inserted
 717             foreach($data as $record) {
 718                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 719                 if ($url and !in_array($url, $urlsInserted)) {
 720                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 721                     $body = (isset($record['content']) ? $record['content'] : '');
 722                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 723                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 724
 725                     // insert new record
 726
 727                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 728                     if ($id) {
 729                         $urlsInserted[] = $url; //add
 730                         if (isset($record['tags']) && trim($record['tags'])) {
 731
 732                             $tags = explode(',', $record['tags']);
 733                                                         foreach($tags as $tag) {
 734                                                                 $entry_id = $id;
 735                                                                 $tag_id = $this->store->retrieveTagByValue($tag);
 736                                                                 if ($tag_id) {
 737                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 738                                                                 } else {
 739                                                                         $this->store->createTag($tag);
 740                                                                         $tag_id = $this->store->retrieveTagByValue($tag);
 741                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 742                                                                 }
 743                                                         }
 744
 745                         }
 746                     }
 747                 }
 748             }
 749
 750             $i = sizeof($urlsInserted);
 751             if ($i > 0) {
 752                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 753             }
 754
 755         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 756       }
 757       else {
 758         $this->messages->add('s', _('Did you forget to select a file?'));
 759       }
 760         // file parsing finished here
 761         // now download article contents if any
 762         // check if we need to download any content
 763
 764         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 765
 766         if ($recordsDownloadRequired == 0) {
 767
 768             // nothing to download
 769
 770             $this->messages->add('s', _('Import finished.'));
 771             Tools::logm('Import finished completely');
 772             Tools::redirect();
 773         }
 774         else {
 775
 776             // if just inserted - don't download anything, download will start in next reload
 777
 778             if (!isset($_FILES['file'])) {
 779
 780                 // download next batch
 781
 782                 Tools::logm('Fetching next batch of articles...');
 783                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 784                 $purifier = $this->_getPurifier();
 785                 foreach($items as $item) {
 786                     $url = new Url(base64_encode($item['url']));
 787                     if( $url->isCorrect() )
 788                     {
 789                         Tools::logm('Fetching article ' . $item['id']);
 790                         $content = Tools::getPageContent($url);
 791                         $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 792                         $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 793
 794                         // clean content to prevent xss attack
 795
 796                         $title = $purifier->purify($title);
 797                         $body = $purifier->purify($body);
 798                         $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 799                         Tools::logm('Article ' . $item['id'] . ' updated.');
 800                     } else
 801                     {
 802                         Tools::logm('Unvalid URL (' . $item['url'] .')  to fetch for article ' . $item['id']);
 803                     }
 804                 }
 805             }
 806         }
 807
 808         return array(
 809             'includeImport' => true,
 810             'import' => array(
 811                 'recordsDownloadRequired' => $recordsDownloadRequired,
 812                 'recordsUnderDownload' => IMPORT_LIMIT,
 813                 'delay' => IMPORT_DELAY * 1000
 814             )
 815         );
 816     }
 817
 818     /**
 819      * export poche entries in json
 820      * @return json all poche entries
 821      */
 822     public function export()
 823     {
 824       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 825       header('Content-Disposition: attachment; filename='.$filename);
 826
 827       $entries = $this->store->retrieveAll($this->user->getId());
 828       echo $this->tpl->render('export.twig', array(
 829           'export' => Tools::renderJson($entries),
 830       ));
 831       Tools::logm('export view');
 832     }
 833
 834     /**
 835      * Checks online the latest version of poche and cache it
 836      * @param  string $which 'prod' or 'dev'
 837      * @return string        latest $which version
 838      */
 839     private function _getPocheVersion($which = 'prod') {
 840       $cache_file = CACHE . '/' . $which;
 841       $check_time = time();
 842
 843       # checks if the cached version file exists
 844       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 845          $version = file_get_contents($cache_file);
 846          $check_time = filemtime($cache_file);
 847       } else {
 848          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 849          file_put_contents($cache_file, $version, LOCK_EX);
 850       }
 851       return array($version, $check_time);
 852     }
 853
 854     /**
 855      * Update token for current user
 856      */
 857     public function updateToken()
 858     {
 859         $token = Tools::generateToken();
 860         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 861         $currentConfig = $_SESSION['poche_user']->config;
 862         $currentConfig['token'] = $token;
 863         $_SESSION['poche_user']->setConfig($currentConfig);
 864         Tools::redirect();
 865     }
 866
 867     /**
 868      * Generate RSS feeds for current user
 869      *
 870      * @param $token
 871      * @param $user_id
 872      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 873      * @param string $type the type of feed to generate
 874      * @param int $limit the maximum number of items (0 means all)
 875      */
 876     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 877     {
 878         $allowed_types = array('home', 'fav', 'archive', 'tag');
 879         $config = $this->store->getConfigUser($user_id);
 880
 881         if ($config == null) {
 882             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 883         }
 884
 885         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 886             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 887         }
 888
 889         $feed = new FeedWriter(RSS2);
 890         $feed->setTitle('wallabag — ' . $type . ' feed');
 891         $feed->setLink(Tools::getPocheUrl());
 892         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 893         $feed->setChannelElement('generator', 'wallabag');
 894         $feed->setDescription('wallabag ' . $type . ' elements');
 895
 896         if ($type == 'tag') {
 897             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 898         }
 899         else {
 900             $entries = $this->store->getEntriesByView($type, $user_id);
 901         }
 902
 903         // if $limit is set to zero, use all entries
 904         if (0 == $limit) {
 905             $limit = count($entries);
 906         }
 907         if (count($entries) > 0) {
 908             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 909                 $entry = $entries[$i];
 910                 $newItem = $feed->createNewItem();
 911                 $newItem->setTitle($entry['title']);
 912                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 913                 $newItem->setLink($entry['url']);
 914                 $newItem->setDate(time());
 915                 $newItem->setDescription($entry['content']);
 916                 $feed->addItem($newItem);
 917             }
 918         }
 919
 920         $feed->genarateFeed();
 921         exit;
 922     }
 923
 924
 925
 926     /**
 927      * Returns new purifier object with actual config
 928      */
 929     private function _getPurifier()
 930     {
 931         $config = HTMLPurifier_Config::createDefault();
 932         $config->set('Cache.SerializerPath', CACHE);
 933         $config->set('HTML.SafeIframe', true);
 934
 935         //allow YouTube, Vimeo and dailymotion videos
 936         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 937
 938         return new HTMLPurifier($config);
 939     }
 940
 941
 942 }