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                 $clean_url = $url->getUrl();
 204
 205                 // Clean URL to remove parameters from feedburner and all this stuff. Taken from Shaarli.
 206                 $i=strpos($clean_url,'&utm_source='); if ($i!==false) $clean_url=substr($clean_url,0,$i);
 207                 $i=strpos($clean_url,'?utm_source='); if ($i!==false) $clean_url=substr($clean_url,0,$i);
 208                 $i=strpos($clean_url,'#xtor=RSS-'); if ($i!==false) $clean_url=substr($clean_url,0,$i);
 209
 210                 $duplicate = $this->store->retrieveOneByURL($clean_url, $this->user->getId());
 211
 212                 $last_id = $this->store->add($clean_url, $title, $body, $this->user->getId());
 213                 if ( $last_id ) {
 214                     Tools::logm('add link ' . $clean_url);
 215                     if (DOWNLOAD_PICTURES) {
 216                         $content = Picture::filterPicture($body, $clean_url, $last_id);
 217                         Tools::logm('updating content article');
 218                         $this->store->updateContent($last_id, $content, $this->user->getId());
 219                     }
 220
 221                     if ($duplicate != NULL) {
 222                         // 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
 223                         Tools::logm('link ' . $clean_url . ' is a duplicate');
 224                         // 1) - preserve tags and favorite, then drop old entry
 225                         $this->store->reassignTags($duplicate['id'], $last_id);
 226                         if ($duplicate['is_fav']) {
 227                           $this->store->favoriteById($last_id, $this->user->getId());
 228                         }
 229                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 230                           Tools::logm('previous link ' . $clean_url .' entry deleted');
 231                         }
 232                     }
 233
 234                     // if there are tags, add them to the new article
 235                     if (isset($_GET['tags'])) {
 236                         $_POST['value'] = $_GET['tags'];
 237                         $_POST['entry_id'] = $last_id;
 238                         $this->action('add_tag', $url);
 239                     }
 240
 241                     $this->messages->add('s', _('the link has been added successfully'));
 242                 }
 243                 else {
 244                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 245                     Tools::logm('error during insertion : the link wasn\'t added ' . $clean_url);
 246                 }
 247
 248                 if ($autoclose == TRUE) {
 249                     Tools::redirect('?view=home&closewin=true');
 250                 } else {
 251                     Tools::redirect('?view=home');
 252                 }
 253                 return $last_id;
 254                 break;
 255             case 'delete':
 256                 if (isset($_GET['search'])) {
 257                     //when we want to apply a delete to a search
 258                     $tags = array($_GET['search']);
 259                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 260                     $entry_ids = array();
 261                     foreach ($allentry_ids as $eachentry) {
 262                         $entry_ids[] = $eachentry[0];
 263                     }
 264                 } else { // delete a single article
 265                     $entry_ids = array($id);
 266                 }
 267                 foreach($entry_ids as $id) {
 268                     $msg = 'delete link #' . $id;
 269                     if ($this->store->deleteById($id, $this->user->getId())) {
 270                         if (DOWNLOAD_PICTURES) {
 271                             Picture::removeDirectory(ABS_PATH . $id);
 272                         }
 273                         $this->messages->add('s', _('the link has been deleted successfully'));
 274                     }
 275                     else {
 276                         $this->messages->add('e', _('the link wasn\'t deleted'));
 277                         $msg = 'error : can\'t delete link #' . $id;
 278                     }
 279                     Tools::logm($msg);
 280                 }
 281                 Tools::redirect('?');
 282                 break;
 283             case 'toggle_fav' :
 284                 $this->store->favoriteById($id, $this->user->getId());
 285                 Tools::logm('mark as favorite link #' . $id);
 286                 if ( Tools::isAjaxRequest() ) {
 287                   echo 1;
 288                   exit;
 289                 }
 290                 else {
 291                   Tools::redirect();
 292                 }
 293                 break;
 294             case 'toggle_archive' :
 295                 if (isset($_GET['tag_id'])) {
 296                     //when we want to archive a whole tag
 297                     $tag_id = $_GET['tag_id'];
 298                     $allentry_ids = $this->store->retrieveEntriesByTag($tag_id, $this->user->getId());
 299                     $entry_ids = array();
 300                     foreach ($allentry_ids as $eachentry) {
 301                         $entry_ids[] = $eachentry[0];
 302                     }
 303                 } else { //archive a single article
 304                     $entry_ids = array($id);
 305                 }
 306                 foreach($entry_ids as $id) {
 307                     $this->store->archiveById($id, $this->user->getId());
 308                     Tools::logm('archive link #' . $id);
 309                 }
 310                 if ( Tools::isAjaxRequest() ) {
 311                   echo 1;
 312                   exit;
 313                 } else {
 314                   Tools::redirect();
 315                 }
 316                 break;
 317             case 'archive_and_next' :
 318                 $nextid = $this->store->getPreviousArticle($id, $this->user->getId());
 319                 $this->store->archiveById($id, $this->user->getId());
 320                 Tools::logm('archive link #' . $id);
 321                 Tools::redirect('?view=view&id=' . $nextid);
 322                 break;
 323             case 'archive_all' :
 324                 $this->store->archiveAll($this->user->getId());
 325                 Tools::logm('archive all links');
 326                 Tools::redirect();
 327                 break;
 328             case 'add_tag' :
 329                 if (isset($_GET['search'])) {
 330                     //when we want to apply a tag to a search
 331                     $tags = array($_GET['search']);
 332                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 333                     $entry_ids = array();
 334                     foreach ($allentry_ids as $eachentry) {
 335                         $entry_ids[] = $eachentry[0];
 336                     }
 337                 } else { //add a tag to a single article
 338                     $tags = explode(',', $_POST['value']);
 339                     $entry_ids = array($_POST['entry_id']);
 340                 }
 341                 foreach($entry_ids as $entry_id) {
 342                     $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 343                     if (!$entry) {
 344                         $this->messages->add('e', _('Article not found!'));
 345                         Tools::logm('error : article not found');
 346                         Tools::redirect();
 347                     }
 348                     //get all already set tags to preven duplicates
 349                     $already_set_tags = array();
 350                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 351                     foreach ($entry_tags as $tag) {
 352                       $already_set_tags[] = $tag['value'];
 353                     }
 354                     foreach($tags as $key => $tag_value) {
 355                         $value = trim($tag_value);
 356                         if ($value && !in_array($value, $already_set_tags)) {
 357                           $tag = $this->store->retrieveTagByValue($value);
 358                           if (is_null($tag)) {
 359                               # we create the tag
 360                               $tag = $this->store->createTag($value);
 361                               $sequence = '';
 362                               if (STORAGE == 'postgres') {
 363                                   $sequence = 'tags_id_seq';
 364                               }
 365                               $tag_id = $this->store->getLastId($sequence);
 366                           }
 367                           else {
 368                               $tag_id = $tag['id'];
 369                           }
 370
 371                           # we assign the tag to the article
 372                           $this->store->setTagToEntry($tag_id, $entry_id);
 373                         }
 374                     }
 375                 }
 376                 $this->messages->add('s', _('The tag has been applied successfully'));
 377                 Tools::logm('The tag has been applied successfully');
 378                 Tools::redirect();
 379                 break;
 380             case 'remove_tag' :
 381                 $tag_id = $_GET['tag_id'];
 382                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 383                 if (!$entry) {
 384                     $this->messages->add('e', _('Article not found!'));
 385                     Tools::logm('error : article not found');
 386                     Tools::redirect();
 387                 }
 388                 $this->store->removeTagForEntry($id, $tag_id);
 389                 Tools::logm('tag entry deleted');
 390                 if ($this->store->cleanUnusedTag($tag_id)) {
 391                     Tools::logm('tag deleted');
 392                 }
 393                 $this->messages->add('s', _('The tag has been successfully deleted'));
 394                 Tools::redirect();
 395                 break;
 396
 397             case 'reload_article' :
 398                 Tools::logm('reload article');
 399                 $id = $_GET['id'];
 400                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 401                 Tools::logm('reload url ' . $entry['url']);
 402                 $url = new Url(base64_encode($entry['url']));
 403                 $this->action('add', $url);
 404                 break;
 405
 406             /* For some unknown reason I can't get displayView() to work here (it redirects to home view afterwards). So here's a dirty fix which redirects directly to URL */
 407             case 'random':
 408                 Tools::logm('get a random article');
 409                 if ($this->store->getRandomId($this->user->getId())) {
 410                     $id_array = $this->store->getRandomId($this->user->getId());
 411                     $id = $id_array[0];
 412                     Tools::redirect('?view=view&id=' . $id[0]);
 413                     Tools::logm('got the article with id ' . $id[0]);
 414                 }
 415                 break;
 416             default:
 417                 break;
 418         }
 419     }
 420
 421     function displayView($view, $id = 0)
 422     {
 423         $tpl_vars = array();
 424
 425         switch ($view)
 426         {
 427             case 'about':
 428                 break;
 429             case 'config':
 430                 $dev_infos = $this->_getPocheVersion('dev');
 431                 $dev = trim($dev_infos[0]);
 432                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 433                 $prod_infos = $this->_getPocheVersion('prod');
 434                 $prod = trim($prod_infos[0]);
 435                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 436                 $compare_dev = version_compare(POCHE, $dev);
 437                 $compare_prod = version_compare(POCHE, $prod);
 438                 $themes = $this->tpl->getInstalledThemes();
 439                 $languages = $this->language->getInstalledLanguages();
 440                 $token = $this->user->getConfigValue('token');
 441                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 442                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 443                 $tpl_vars = array(
 444                     'themes' => $themes,
 445                     'languages' => $languages,
 446                     'dev' => $dev,
 447                     'prod' => $prod,
 448                     'check_time_dev' => $check_time_dev,
 449                     'check_time_prod' => $check_time_prod,
 450                     'compare_dev' => $compare_dev,
 451                     'compare_prod' => $compare_prod,
 452                     'token' => $token,
 453                     'user_id' => $this->user->getId(),
 454                     'http_auth' => $http_auth,
 455                     'only_user' => $only_user
 456                 );
 457                 Tools::logm('config view');
 458                 break;
 459             case 'edit-tags':
 460                 # tags
 461                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 462                 if (!$entry) {
 463                     $this->messages->add('e', _('Article not found!'));
 464                     Tools::logm('error : article not found');
 465                     Tools::redirect();
 466                 }
 467                 $tags = $this->store->retrieveTagsByEntry($id);
 468                 $all_tags = $this->store->retrieveAllTags($this->user->getId());
 469                 $tpl_vars = array(
 470                     'entry_id' => $id,
 471                     'tags' => $tags,
 472                     'alltags' => $all_tags,
 473                     'entry' => $entry,
 474                 );
 475                 break;
 476             case 'tags':
 477                 $token = $this->user->getConfigValue('token');
 478                 //if term is set - search tags for this term
 479                 $term = Tools::checkVar('term');
 480                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 481                 if (Tools::isAjaxRequest()) {
 482                   $result = array();
 483                   foreach ($tags as $tag) {
 484                     $result[] = $tag['value'];
 485                   }
 486                   echo json_encode($result);
 487                   exit;
 488                 }
 489                 $tpl_vars = array(
 490                     'token' => $token,
 491                     'user_id' => $this->user->getId(),
 492                     'tags' => $tags,
 493                 );
 494                 break;
 495             case 'search':
 496                 if (isset($_GET['search'])) {
 497                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 498                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 499                    $count = count($tpl_vars['entries']);
 500                    $this->pagination->set_total($count);
 501                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 502                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 503                    $tpl_vars['page_links'] = $page_links;
 504                    $tpl_vars['nb_results'] = $count;
 505                    $tpl_vars['searchterm'] = $search;
 506                 }
 507                 break;
 508             case 'view':
 509                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 510                 if ($entry != NULL) {
 511                     Tools::logm('view link #' . $id);
 512                     $content = $entry['content'];
 513                     if (function_exists('tidy_parse_string')) {
 514                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 515                         $tidy->cleanRepair();
 516                         $content = $tidy->value;
 517                     }
 518
 519                     # flattr checking
 520                     $flattr = NULL;
 521                     if (FLATTR) {
 522                         $flattr = new FlattrItem();
 523                         $flattr->checkItem($entry['url'], $entry['id']);
 524                     }
 525
 526                     # previous and next
 527                     $previous = FALSE;
 528                     $previous_id = $this->store->getPreviousArticle($id, $this->user->getId());
 529                     $next = FALSE;
 530                     $next_id = $this->store->getNextArticle($id, $this->user->getId());
 531
 532                     if ($this->store->retrieveOneById($previous_id, $this->user->getId())) {
 533                         $previous = TRUE;
 534                     }
 535                     if ($this->store->retrieveOneById($next_id, $this->user->getId())) {
 536                         $next = TRUE;
 537                     }
 538                     $navigate = $arrayName = array('previous' => $previous, 'previousid' => $previous_id, 'next' => $next, 'nextid' => $next_id);
 539
 540                     # tags
 541                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 542
 543                     $tpl_vars = array(
 544                         'entry' => $entry,
 545                         'content' => $content,
 546                         'flattr' => $flattr,
 547                         'tags' => $tags,
 548                         'navigate' => $navigate
 549                     );
 550                 }
 551                 else {
 552                     Tools::logm('error in view call : entry is null');
 553                 }
 554                 break;
 555             default: # home, favorites, archive and tag views
 556                 $tpl_vars = array(
 557                     'entries' => '',
 558                     'page_links' => '',
 559                     'nb_results' => '',
 560                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 561                 );
 562
 563                 //if id is given - we retrieve entries by tag: id is tag id
 564                 if ($id) {
 565                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 566                   $tpl_vars['id'] = intval($id);
 567                 }
 568
 569                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 570
 571                 if ($count > 0) {
 572                     $this->pagination->set_total($count);
 573                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 574                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 575                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 576                     $tpl_vars['page_links'] = $page_links;
 577                     $tpl_vars['nb_results'] = $count;
 578                 }
 579                 Tools::logm('display ' . $view . ' view');
 580                 break;
 581         }
 582
 583         return $tpl_vars;
 584     }
 585
 586     /**
 587      * update the password of the current user.
 588      * if MODE_DEMO is TRUE, the password can't be updated.
 589      * @todo add the return value
 590      * @todo set the new password in function header like this updatePassword($newPassword)
 591      * @return boolean
 592      */
 593     public function updatePassword($password, $confirmPassword)
 594     {
 595         if (MODE_DEMO) {
 596             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 597             Tools::logm('in demo mode, you can\'t do this');
 598             Tools::redirect('?view=config');
 599         }
 600         else {
 601             if (isset($password) && isset($confirmPassword)) {
 602                 if ($password == $confirmPassword && !empty($password)) {
 603                     $this->messages->add('s', _('your password has been updated'));
 604                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 605                     Session::logout();
 606                     Tools::logm('password updated');
 607                     Tools::redirect();
 608                 }
 609                 else {
 610                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 611                     Tools::redirect('?view=config');
 612                 }
 613             }
 614         }
 615     }
 616
 617     /**
 618      * Get credentials from differents sources
 619      * It redirects the user to the $referer link
 620      *
 621      * @return array
 622      */
 623     private function credentials()
 624     {
 625         if (isset($_SERVER['PHP_AUTH_USER'])) {
 626             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 627         }
 628         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 629             return array($_POST['login'], $_POST['password'], false);
 630         }
 631         if (isset($_SERVER['REMOTE_USER'])) {
 632             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 633         }
 634
 635         return array(false, false, false);
 636     }
 637
 638     /**
 639      * checks if login & password are correct and save the user in session.
 640      * it redirects the user to the $referer link
 641      * @param  string $referer the url to redirect after login
 642      * @todo add the return value
 643      * @return boolean
 644      */
 645     public function login($referer)
 646     {
 647         list($login,$password,$isauthenticated)=$this->credentials();
 648         if($login === false || $password === false) {
 649             $this->messages->add('e', _('login failed: you have to fill all fields'));
 650             Tools::logm('login failed');
 651             Tools::redirect();
 652         }
 653         if (!empty($login) && !empty($password)) {
 654             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 655             if ($user != array()) {
 656                 # Save login into Session
 657                 $longlastingsession = isset($_POST['longlastingsession']);
 658                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 659                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 660
 661                 # reload l10n
 662                 $language = $user['config']['language'];
 663                 @putenv('LC_ALL=' . $language);
 664                 setlocale(LC_ALL, $language);
 665                 bindtextdomain($language, LOCALE);
 666                 textdomain($language);
 667
 668                 $this->messages->add('s', _('welcome to your wallabag'));
 669                 Tools::logm('login successful');
 670                 Tools::redirect($referer);
 671             }
 672             $this->messages->add('e', _('login failed: bad login or password'));
 673             // log login failure in web server log to allow fail2ban usage
 674             error_log('user '.$login.' authentication failure');
 675             Tools::logm('login failed');
 676             Tools::redirect();
 677         }
 678     }
 679
 680     /**
 681      * log out the poche user. It cleans the session.
 682      * @todo add the return value
 683      * @return boolean
 684      */
 685     public function logout()
 686     {
 687         $this->user = array();
 688         Session::logout();
 689         Tools::logm('logout');
 690         Tools::redirect();
 691     }
 692
 693     /**
 694      * import datas into your wallabag
 695      * @return boolean
 696      */
 697
 698     public function import() {
 699
 700       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 701         Tools::logm('Import stated: parsing file');
 702
 703         // assume, that file is in json format
 704         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 705         $data = json_decode($str_data, true);
 706
 707         if ( $data === null ) {
 708           //not json - assume html
 709           $html = new simple_html_dom();
 710           $html->load_file($_FILES['file']['tmp_name']);
 711           $data = array();
 712           $read = 0;
 713           foreach (array('ol','ul') as $list) {
 714             foreach ($html->find($list) as $ul) {
 715               foreach ($ul->find('li') as $li) {
 716                 $tmpEntry = array();
 717                   $a = $li->find('a');
 718                   $tmpEntry['url'] = $a[0]->href;
 719                   $tmpEntry['tags'] = $a[0]->tags;
 720                   $tmpEntry['is_read'] = $read;
 721                   if ($tmpEntry['url']) {
 722                     $data[] = $tmpEntry;
 723                   }
 724               }
 725               # the second <ol/ul> is for read links
 726               $read = ((sizeof($data) && $read)?0:1);
 727             }
 728           }
 729         }
 730
 731             // for readability structure
 732
 733             foreach($data as $record) {
 734                 if (is_array($record)) {
 735                     $data[] = $record;
 736                     foreach($record as $record2) {
 737                         if (is_array($record2)) {
 738                             $data[] = $record2;
 739                         }
 740                     }
 741                 }
 742             }
 743
 744             $urlsInserted = array(); //urls of articles inserted
 745             foreach($data as $record) {
 746                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 747                 if ($url and !in_array($url, $urlsInserted)) {
 748                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 749                     $body = (isset($record['content']) ? $record['content'] : '');
 750                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 751                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 752
 753                     // insert new record
 754
 755                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 756                     if ($id) {
 757                         $urlsInserted[] = $url; //add
 758                         if (isset($record['tags']) && trim($record['tags'])) {
 759
 760                             $tags = explode(',', $record['tags']);
 761                                                         foreach($tags as $tag) {
 762                                                                 $entry_id = $id;
 763                                                                 $tag_id = $this->store->retrieveTagByValue($tag);
 764                                                                 if ($tag_id) {
 765                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 766                                                                 } else {
 767                                                                         $this->store->createTag($tag);
 768                                                                         $tag_id = $this->store->retrieveTagByValue($tag);
 769                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 770                                                                 }
 771                                                         }
 772
 773                         }
 774                     }
 775                 }
 776             }
 777
 778             $i = sizeof($urlsInserted);
 779             if ($i > 0) {
 780                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 781             }
 782
 783         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 784       }
 785       else {
 786         $this->messages->add('e', _('Did you forget to select a file?'));
 787       }
 788         // file parsing finished here
 789         // now download article contents if any
 790         // check if we need to download any content
 791
 792         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 793
 794         if ($recordsDownloadRequired == 0) {
 795
 796             // nothing to download
 797
 798             $this->messages->add('s', _('Import finished.'));
 799             Tools::logm('Import finished completely');
 800             Tools::redirect();
 801         }
 802         else {
 803
 804             // if just inserted - don't download anything, download will start in next reload
 805
 806             if (!isset($_FILES['file'])) {
 807
 808                 // download next batch
 809
 810                 Tools::logm('Fetching next batch of articles...');
 811                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 812                 $purifier = $this->_getPurifier();
 813                 foreach($items as $item) {
 814                     $url = new Url(base64_encode($item['url']));
 815                     if( $url->isCorrect() )
 816                     {
 817                         Tools::logm('Fetching article ' . $item['id']);
 818                         $content = Tools::getPageContent($url);
 819                         $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 820                         $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 821
 822                         // clean content to prevent xss attack
 823
 824                         $title = $purifier->purify($title);
 825                         $body = $purifier->purify($body);
 826                         $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 827                         Tools::logm('Article ' . $item['id'] . ' updated.');
 828                     } else
 829                     {
 830                         Tools::logm('Unvalid URL (' . $item['url'] .')  to fetch for article ' . $item['id']);
 831                     }
 832                 }
 833             }
 834         }
 835
 836         return array(
 837             'includeImport' => true,
 838             'import' => array(
 839                 'recordsDownloadRequired' => $recordsDownloadRequired,
 840                 'recordsUnderDownload' => IMPORT_LIMIT,
 841                 'delay' => IMPORT_DELAY * 1000
 842             )
 843         );
 844     }
 845
 846     /**
 847      * export poche entries in json
 848      * @return json all poche entries
 849      */
 850     public function export()
 851     {
 852       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 853       header('Content-Disposition: attachment; filename='.$filename);
 854
 855       $entries = $this->store->retrieveAll($this->user->getId());
 856       echo $this->tpl->render('export.twig', array(
 857           'export' => Tools::renderJson($entries),
 858       ));
 859       Tools::logm('export view');
 860     }
 861
 862     /**
 863      * Checks online the latest version of poche and cache it
 864      * @param  string $which 'prod' or 'dev'
 865      * @return string        latest $which version
 866      */
 867     private function _getPocheVersion($which = 'prod') {
 868       $cache_file = CACHE . '/' . $which;
 869       $check_time = time();
 870
 871       # checks if the cached version file exists
 872       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 873          $version = file_get_contents($cache_file);
 874          $check_time = filemtime($cache_file);
 875       } else {
 876          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 877          file_put_contents($cache_file, $version, LOCK_EX);
 878       }
 879       return array($version, $check_time);
 880     }
 881
 882     /**
 883      * Update token for current user
 884      */
 885     public function updateToken()
 886     {
 887         $token = Tools::generateToken();
 888         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 889         $currentConfig = $_SESSION['poche_user']->config;
 890         $currentConfig['token'] = $token;
 891         $_SESSION['poche_user']->setConfig($currentConfig);
 892         Tools::redirect();
 893     }
 894
 895     /**
 896      * Generate RSS feeds for current user
 897      *
 898      * @param $token
 899      * @param $user_id
 900      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 901      * @param string $type the type of feed to generate
 902      * @param int $limit the maximum number of items (0 means all)
 903      */
 904     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 905     {
 906         $allowed_types = array('home', 'fav', 'archive', 'tag');
 907         $config = $this->store->getConfigUser($user_id);
 908
 909         if ($config == null) {
 910             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 911         }
 912
 913         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 914             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 915         }
 916
 917         $feed = new FeedWriter(RSS2);
 918         $feed->setTitle('wallabag — ' . $type . ' feed');
 919         $feed->setLink(Tools::getPocheUrl());
 920         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 921         $feed->setChannelElement('generator', 'wallabag');
 922         $feed->setDescription('wallabag ' . $type . ' elements');
 923
 924         if ($type == 'tag') {
 925             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 926         }
 927         else {
 928             $entries = $this->store->getEntriesByView($type, $user_id);
 929         }
 930
 931         // if $limit is set to zero, use all entries
 932         if (0 == $limit) {
 933             $limit = count($entries);
 934         }
 935         if (count($entries) > 0) {
 936             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 937                 $entry = $entries[$i];
 938                 $newItem = $feed->createNewItem();
 939                 $newItem->setTitle($entry['title']);
 940                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 941                 $newItem->setLink($entry['url']);
 942                 $newItem->setDate(time());
 943                 $newItem->setDescription($entry['content']);
 944                 $feed->addItem($newItem);
 945             }
 946         }
 947
 948         $feed->genarateFeed();
 949         exit;
 950     }
 951
 952
 953
 954     /**
 955      * Returns new purifier object with actual config
 956      */
 957     private function _getPurifier()
 958     {
 959         $config = HTMLPurifier_Config::createDefault();
 960         $config->set('Cache.SerializerPath', CACHE);
 961         $config->set('HTML.SafeIframe', true);
 962
 963         //allow YouTube, Vimeo and dailymotion videos
 964         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 965
 966         return new HTMLPurifier($config);
 967     }
 968
 969
 970 }