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', $url);
 392                 break;
 393
 394             /* For some unknown reason I can't get displayView() to work here (it redirects to home view afterwards). So here's a dirty fix which redirects directly to URL */
 395             case 'random':
 396                 Tools::logm('get a random article');
 397                 if ($this->store->getRandomId($this->user->getId())) {
 398                     $id = $this->store->getRandomId($this->user->getId())[0];
 399                     Tools::redirect('?view=view&id=' . $id[0]);
 400                     Tools::logm('got the article with id ' . $id[0]);
 401                 }
 402                 break;
 403             default:
 404                 break;
 405         }
 406     }
 407
 408     function displayView($view, $id = 0)
 409     {
 410         $tpl_vars = array();
 411
 412         switch ($view)
 413         {
 414             case 'about':
 415                 break;
 416             case 'config':
 417                 $dev_infos = $this->_getPocheVersion('dev');
 418                 $dev = trim($dev_infos[0]);
 419                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 420                 $prod_infos = $this->_getPocheVersion('prod');
 421                 $prod = trim($prod_infos[0]);
 422                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 423                 $compare_dev = version_compare(POCHE, $dev);
 424                 $compare_prod = version_compare(POCHE, $prod);
 425                 $themes = $this->tpl->getInstalledThemes();
 426                 $languages = $this->language->getInstalledLanguages();
 427                 $token = $this->user->getConfigValue('token');
 428                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 429                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 430                 $tpl_vars = array(
 431                     'themes' => $themes,
 432                     'languages' => $languages,
 433                     'dev' => $dev,
 434                     'prod' => $prod,
 435                     'check_time_dev' => $check_time_dev,
 436                     'check_time_prod' => $check_time_prod,
 437                     'compare_dev' => $compare_dev,
 438                     'compare_prod' => $compare_prod,
 439                     'token' => $token,
 440                     'user_id' => $this->user->getId(),
 441                     'http_auth' => $http_auth,
 442                     'only_user' => $only_user
 443                 );
 444                 Tools::logm('config view');
 445                 break;
 446             case 'edit-tags':
 447                 # tags
 448                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 449                 if (!$entry) {
 450                     $this->messages->add('e', _('Article not found!'));
 451                     Tools::logm('error : article not found');
 452                     Tools::redirect();
 453                 }
 454                 $tags = $this->store->retrieveTagsByEntry($id);
 455                 $tpl_vars = array(
 456                     'entry_id' => $id,
 457                     'tags' => $tags,
 458                     'entry' => $entry,
 459                 );
 460                 break;
 461             case 'tags':
 462                 $token = $this->user->getConfigValue('token');
 463                 //if term is set - search tags for this term
 464                 $term = Tools::checkVar('term');
 465                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 466                 if (Tools::isAjaxRequest()) {
 467                   $result = array();
 468                   foreach ($tags as $tag) {
 469                     $result[] = $tag['value'];
 470                   }
 471                   echo json_encode($result);
 472                   exit;
 473                 }
 474                 $tpl_vars = array(
 475                     'token' => $token,
 476                     'user_id' => $this->user->getId(),
 477                     'tags' => $tags,
 478                 );
 479                 break;
 480             case 'search':
 481                 if (isset($_GET['search'])) {
 482                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 483                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 484                    $count = count($tpl_vars['entries']);
 485                    $this->pagination->set_total($count);
 486                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 487                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 488                    $tpl_vars['page_links'] = $page_links;
 489                    $tpl_vars['nb_results'] = $count;
 490                    $tpl_vars['searchterm'] = $search;
 491                 }
 492                 break;
 493             case 'view':
 494                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 495                 if ($entry != NULL) {
 496                     Tools::logm('view link #' . $id);
 497                     $content = $entry['content'];
 498                     if (function_exists('tidy_parse_string')) {
 499                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 500                         $tidy->cleanRepair();
 501                         $content = $tidy->value;
 502                     }
 503
 504                     # flattr checking
 505                     $flattr = NULL;
 506                     if (FLATTR) {
 507                         $flattr = new FlattrItem();
 508                         $flattr->checkItem($entry['url'], $entry['id']);
 509                     }
 510
 511                     # tags
 512                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 513
 514                     $tpl_vars = array(
 515                         'entry' => $entry,
 516                         'content' => $content,
 517                         'flattr' => $flattr,
 518                         'tags' => $tags
 519                     );
 520                 }
 521                 else {
 522                     Tools::logm('error in view call : entry is null');
 523                 }
 524                 break;
 525             default: # home, favorites, archive and tag views
 526                 $tpl_vars = array(
 527                     'entries' => '',
 528                     'page_links' => '',
 529                     'nb_results' => '',
 530                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 531                 );
 532
 533                 //if id is given - we retrieve entries by tag: id is tag id
 534                 if ($id) {
 535                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 536                   $tpl_vars['id'] = intval($id);
 537                 }
 538
 539                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 540
 541                 if ($count > 0) {
 542                     $this->pagination->set_total($count);
 543                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 544                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 545                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 546                     $tpl_vars['page_links'] = $page_links;
 547                     $tpl_vars['nb_results'] = $count;
 548                 }
 549                 Tools::logm('display ' . $view . ' view');
 550                 break;
 551         }
 552
 553         return $tpl_vars;
 554     }
 555
 556     /**
 557      * update the password of the current user.
 558      * if MODE_DEMO is TRUE, the password can't be updated.
 559      * @todo add the return value
 560      * @todo set the new password in function header like this updatePassword($newPassword)
 561      * @return boolean
 562      */
 563     public function updatePassword($password, $confirmPassword)
 564     {
 565         if (MODE_DEMO) {
 566             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 567             Tools::logm('in demo mode, you can\'t do this');
 568             Tools::redirect('?view=config');
 569         }
 570         else {
 571             if (isset($password) && isset($confirmPassword)) {
 572                 if ($password == $confirmPassword && !empty($password)) {
 573                     $this->messages->add('s', _('your password has been updated'));
 574                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 575                     Session::logout();
 576                     Tools::logm('password updated');
 577                     Tools::redirect();
 578                 }
 579                 else {
 580                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 581                     Tools::redirect('?view=config');
 582                 }
 583             }
 584         }
 585     }
 586
 587     /**
 588      * Get credentials from differents sources
 589      * It redirects the user to the $referer link
 590      *
 591      * @return array
 592      */
 593     private function credentials()
 594     {
 595         if (isset($_SERVER['PHP_AUTH_USER'])) {
 596             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 597         }
 598         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 599             return array($_POST['login'], $_POST['password'], false);
 600         }
 601         if (isset($_SERVER['REMOTE_USER'])) {
 602             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 603         }
 604
 605         return array(false, false, false);
 606     }
 607
 608     /**
 609      * checks if login & password are correct and save the user in session.
 610      * it redirects the user to the $referer link
 611      * @param  string $referer the url to redirect after login
 612      * @todo add the return value
 613      * @return boolean
 614      */
 615     public function login($referer)
 616     {
 617         list($login,$password,$isauthenticated)=$this->credentials();
 618         if($login === false || $password === false) {
 619             $this->messages->add('e', _('login failed: you have to fill all fields'));
 620             Tools::logm('login failed');
 621             Tools::redirect();
 622         }
 623         if (!empty($login) && !empty($password)) {
 624             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 625             if ($user != array()) {
 626                 # Save login into Session
 627                 $longlastingsession = isset($_POST['longlastingsession']);
 628                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 629                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 630
 631                 # reload l10n
 632                 $language = $user['config']['language'];
 633                 @putenv('LC_ALL=' . $language);
 634                 setlocale(LC_ALL, $language);
 635                 bindtextdomain($language, LOCALE);
 636                 textdomain($language);
 637
 638                 $this->messages->add('s', _('welcome to your wallabag'));
 639                 Tools::logm('login successful');
 640                 Tools::redirect($referer);
 641             }
 642             $this->messages->add('e', _('login failed: bad login or password'));
 643             // log login failure in web server log to allow fail2ban usage
 644             error_log('user '.$login.' authentication failure');
 645             Tools::logm('login failed');
 646             Tools::redirect();
 647         }
 648     }
 649
 650     /**
 651      * log out the poche user. It cleans the session.
 652      * @todo add the return value
 653      * @return boolean
 654      */
 655     public function logout()
 656     {
 657         $this->user = array();
 658         Session::logout();
 659         Tools::logm('logout');
 660         Tools::redirect();
 661     }
 662
 663     /**
 664      * import datas into your wallabag
 665      * @return boolean
 666      */
 667
 668     public function import() {
 669
 670       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 671         Tools::logm('Import stated: parsing file');
 672
 673         // assume, that file is in json format
 674         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 675         $data = json_decode($str_data, true);
 676
 677         if ( $data === null ) {
 678           //not json - assume html
 679           $html = new simple_html_dom();
 680           $html->load_file($_FILES['file']['tmp_name']);
 681           $data = array();
 682           $read = 0;
 683           foreach (array('ol','ul') as $list) {
 684             foreach ($html->find($list) as $ul) {
 685               foreach ($ul->find('li') as $li) {
 686                 $tmpEntry = array();
 687                   $a = $li->find('a');
 688                   $tmpEntry['url'] = $a[0]->href;
 689                   $tmpEntry['tags'] = $a[0]->tags;
 690                   $tmpEntry['is_read'] = $read;
 691                   if ($tmpEntry['url']) {
 692                     $data[] = $tmpEntry;
 693                   }
 694               }
 695               # the second <ol/ul> is for read links
 696               $read = ((sizeof($data) && $read)?0:1);
 697             }
 698           }
 699         }
 700
 701             // for readability structure
 702
 703             foreach($data as $record) {
 704                 if (is_array($record)) {
 705                     $data[] = $record;
 706                     foreach($record as $record2) {
 707                         if (is_array($record2)) {
 708                             $data[] = $record2;
 709                         }
 710                     }
 711                 }
 712             }
 713
 714             $urlsInserted = array(); //urls of articles inserted
 715             foreach($data as $record) {
 716                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 717                 if ($url and !in_array($url, $urlsInserted)) {
 718                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 719                     $body = (isset($record['content']) ? $record['content'] : '');
 720                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 721                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 722
 723                     // insert new record
 724
 725                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 726                     if ($id) {
 727                         $urlsInserted[] = $url; //add
 728                         if (isset($record['tags']) && trim($record['tags'])) {
 729
 730                             $tags = explode(',', $record['tags']);
 731                                                         foreach($tags as $tag) {
 732                                                                 $entry_id = $id;
 733                                                                 $tag_id = $this->store->retrieveTagByValue($tag);
 734                                                                 if ($tag_id) {
 735                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 736                                                                 } else {
 737                                                                         $this->store->createTag($tag);
 738                                                                         $tag_id = $this->store->retrieveTagByValue($tag);
 739                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 740                                                                 }
 741                                                         }
 742
 743                         }
 744                     }
 745                 }
 746             }
 747
 748             $i = sizeof($urlsInserted);
 749             if ($i > 0) {
 750                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 751             }
 752
 753         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 754       }
 755       else {
 756         $this->messages->add('s', _('Did you forget to select a file?'));
 757       }
 758         // file parsing finished here
 759         // now download article contents if any
 760         // check if we need to download any content
 761
 762         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 763
 764         if ($recordsDownloadRequired == 0) {
 765
 766             // nothing to download
 767
 768             $this->messages->add('s', _('Import finished.'));
 769             Tools::logm('Import finished completely');
 770             Tools::redirect();
 771         }
 772         else {
 773
 774             // if just inserted - don't download anything, download will start in next reload
 775
 776             if (!isset($_FILES['file'])) {
 777
 778                 // download next batch
 779
 780                 Tools::logm('Fetching next batch of articles...');
 781                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 782                 $purifier = $this->_getPurifier();
 783                 foreach($items as $item) {
 784                     $url = new Url(base64_encode($item['url']));
 785                     if( $url->isCorrect() )
 786                     {
 787                         Tools::logm('Fetching article ' . $item['id']);
 788                         $content = Tools::getPageContent($url);
 789                         $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 790                         $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 791
 792                         // clean content to prevent xss attack
 793
 794                         $title = $purifier->purify($title);
 795                         $body = $purifier->purify($body);
 796                         $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 797                         Tools::logm('Article ' . $item['id'] . ' updated.');
 798                     } else
 799                     {
 800                         Tools::logm('Unvalid URL (' . $item['url'] .')  to fetch for article ' . $item['id']);
 801                     }
 802                 }
 803             }
 804         }
 805
 806         return array(
 807             'includeImport' => true,
 808             'import' => array(
 809                 'recordsDownloadRequired' => $recordsDownloadRequired,
 810                 'recordsUnderDownload' => IMPORT_LIMIT,
 811                 'delay' => IMPORT_DELAY * 1000
 812             )
 813         );
 814     }
 815
 816     /**
 817      * export poche entries in json
 818      * @return json all poche entries
 819      */
 820     public function export()
 821     {
 822       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 823       header('Content-Disposition: attachment; filename='.$filename);
 824
 825       $entries = $this->store->retrieveAll($this->user->getId());
 826       echo $this->tpl->render('export.twig', array(
 827           'export' => Tools::renderJson($entries),
 828       ));
 829       Tools::logm('export view');
 830     }
 831
 832     /**
 833      * Checks online the latest version of poche and cache it
 834      * @param  string $which 'prod' or 'dev'
 835      * @return string        latest $which version
 836      */
 837     private function _getPocheVersion($which = 'prod') {
 838       $cache_file = CACHE . '/' . $which;
 839       $check_time = time();
 840
 841       # checks if the cached version file exists
 842       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 843          $version = file_get_contents($cache_file);
 844          $check_time = filemtime($cache_file);
 845       } else {
 846          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 847          file_put_contents($cache_file, $version, LOCK_EX);
 848       }
 849       return array($version, $check_time);
 850     }
 851
 852     /**
 853      * Update token for current user
 854      */
 855     public function updateToken()
 856     {
 857         $token = Tools::generateToken();
 858         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 859         $currentConfig = $_SESSION['poche_user']->config;
 860         $currentConfig['token'] = $token;
 861         $_SESSION['poche_user']->setConfig($currentConfig);
 862         Tools::redirect();
 863     }
 864
 865     /**
 866      * Generate RSS feeds for current user
 867      *
 868      * @param $token
 869      * @param $user_id
 870      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 871      * @param string $type the type of feed to generate
 872      * @param int $limit the maximum number of items (0 means all)
 873      */
 874     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 875     {
 876         $allowed_types = array('home', 'fav', 'archive', 'tag');
 877         $config = $this->store->getConfigUser($user_id);
 878
 879         if ($config == null) {
 880             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 881         }
 882
 883         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 884             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 885         }
 886
 887         $feed = new FeedWriter(RSS2);
 888         $feed->setTitle('wallabag — ' . $type . ' feed');
 889         $feed->setLink(Tools::getPocheUrl());
 890         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 891         $feed->setChannelElement('generator', 'wallabag');
 892         $feed->setDescription('wallabag ' . $type . ' elements');
 893
 894         if ($type == 'tag') {
 895             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 896         }
 897         else {
 898             $entries = $this->store->getEntriesByView($type, $user_id);
 899         }
 900
 901         // if $limit is set to zero, use all entries
 902         if (0 == $limit) {
 903             $limit = count($entries);
 904         }
 905         if (count($entries) > 0) {
 906             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 907                 $entry = $entries[$i];
 908                 $newItem = $feed->createNewItem();
 909                 $newItem->setTitle($entry['title']);
 910                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 911                 $newItem->setLink($entry['url']);
 912                 $newItem->setDate(time());
 913                 $newItem->setDescription($entry['content']);
 914                 $feed->addItem($newItem);
 915             }
 916         }
 917
 918         $feed->genarateFeed();
 919         exit;
 920     }
 921
 922
 923
 924     /**
 925      * Returns new purifier object with actual config
 926      */
 927     private function _getPurifier()
 928     {
 929         $config = HTMLPurifier_Config::createDefault();
 930         $config->set('Cache.SerializerPath', CACHE);
 931         $config->set('HTML.SafeIframe', true);
 932
 933         //allow YouTube, Vimeo and dailymotion videos
 934         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 935
 936         return new HTMLPurifier($config);
 937     }
 938
 939
 940 }