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
  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 = "Hi, " . $newUsername . "\r\n\r\nYou've just created a wallabag account on " . Tools::getPocheUrl() . ".\r\nHave fun with it !";
  97                             $body = $internalRegistration ? $body_internal : $body;
  98
  99                             $body = wordwrap($body, 70, "\r\n"); // cut lines with more than 70 caracters (MIME standard)
 100                             if (mail($email, sprintf(_('Your new wallabag account on %1$s'), Tools::getPocheUrl()), $body,
 101                                 'X-Mailer: PHP/' . phpversion() .  "\r\n" .
 102                                 'Content-type: text/plain; charset=UTF-8' . "\r\n" .
 103                                 "From: " . $newUsername . "@" . gethostname() . "\r\n")) {
 104                                 Tools::logm('The user ' . $newUsername . ' has been emailed');
 105                                 $this->messages->add('i', sprintf(_('The new user %1$s has been sent an email at %2$s. You may have to check spam folder.'), $newUsername, $email));
 106
 107                             } else {
 108                                 Tools::logm('A problem has been encountered while sending an email');
 109                                 $this->messages->add('e', _('A problem has been encountered while sending an email'));
 110                             }
 111                         } else {
 112                             Tools::logm('The user has been created, but the server did not authorize sending emails');
 113                             $this->messages->add('i', _('The server did not authorize sending a confirmation email'));
 114                         }
 115                 } else {
 116                     Tools::logm('The user has been created, but no email was saved, so no confimation email was sent');
 117                     $this->messages->add('i', _('The user was created, but no email was sent because email was not filled in'));
 118                 }
 119                 Tools::logm('The new user ' . $newUsername . ' has been installed');
 120                 $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'), $newUsername));
 121                 Tools::redirect();
 122                 }
 123                 else {
 124                     Tools::logm('error during adding new user');
 125                     Tools::redirect();
 126                 }
 127             }
 128             else {
 129                 $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'), $newUsername));
 130                 Tools::logm('An user with the name ' . $newUsername . ' already exists !');
 131                 Tools::redirect();
 132             }
 133         }
 134         else {
 135             Tools::logm('Password or username were empty');
 136         }
 137     }
 138
 139     /**
 140      * Delete an existing user
 141      */
 142     public function deleteUser($password)
 143     {
 144         if ($this->store->listUsers() > 1) {
 145             if (Tools::encodeString($password . $this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
 146                 $username = $this->user->getUsername();
 147                 $this->store->deleteUserConfig($this->user->getId());
 148                 Tools::logm('The configuration for user '. $username .' has been deleted !');
 149                 $this->store->deleteTagsEntriesAndEntries($this->user->getId());
 150                 Tools::logm('The entries for user '. $username .' has been deleted !');
 151                 $this->store->deleteUser($this->user->getId());
 152                 Tools::logm('User '. $username .' has been completely deleted !');
 153                 Session::logout();
 154                 Tools::logm('logout');
 155                 Tools::redirect();
 156                 $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'), $username));
 157             }
 158             else {
 159                 Tools::logm('Bad password !');
 160                 $this->messages->add('e', _('Error : The password is wrong !'));
 161             }
 162         }
 163         else {
 164             Tools::logm('Only user !');
 165             $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
 166         }
 167     }
 168
 169     public function getDefaultConfig()
 170     {
 171         return array(
 172             'pager' => PAGINATION,
 173             'language' => LANG,
 174             'theme' => DEFAULT_THEME
 175         );
 176     }
 177
 178     /**
 179      * Call action (mark as fav, archive, delete, etc.)
 180      */
 181     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 182     {
 183         switch ($action)
 184         {
 185             case 'add':
 186                 $content = Tools::getPageContent($url);
 187                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 188                 $body = $content['rss']['channel']['item']['description'];
 189
 190                 // clean content from prevent xss attack
 191                 $purifier = $this->_getPurifier();
 192                 $title = $purifier->purify($title);
 193                 $body = $purifier->purify($body);
 194
 195                 //search for possible duplicate
 196                 $duplicate = NULL;
 197                 $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 198
 199                 $last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
 200                 if ( $last_id ) {
 201                     Tools::logm('add link ' . $url->getUrl());
 202                     if (DOWNLOAD_PICTURES) {
 203                         $content = Picture::filterPicture($body, $url->getUrl(), $last_id);
 204                         Tools::logm('updating content article');
 205                         $this->store->updateContent($last_id, $content, $this->user->getId());
 206                     }
 207
 208                     if ($duplicate != NULL) {
 209                         // 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
 210                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 211                         // 1) - preserve tags and favorite, then drop old entry
 212                         $this->store->reassignTags($duplicate['id'], $last_id);
 213                         if ($duplicate['is_fav']) {
 214                           $this->store->favoriteById($last_id, $this->user->getId());
 215                         }
 216                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 217                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 218                         }
 219                     }
 220
 221                     // if there are tags, add them to the new article
 222                     if (isset($_GET['tags'])) {
 223                         $_POST['value'] = $_GET['tags'];
 224                         $_POST['entry_id'] = $last_id;
 225                         $this->action('add_tag', $url);
 226                     }
 227
 228                     $this->messages->add('s', _('the link has been added successfully'));
 229                 }
 230                 else {
 231                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 232                     Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 233                 }
 234
 235                 if ($autoclose == TRUE) {
 236                     Tools::redirect('?view=home&closewin=true');
 237                 } else {
 238                     Tools::redirect('?view=home');
 239                 }
 240                 return $last_id;
 241                 break;
 242             case 'delete':
 243                 if (isset($_GET['search'])) {
 244                     //when we want to apply a delete to a search
 245                     $tags = array($_GET['search']);
 246                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 247                     $entry_ids = array();
 248                     foreach ($allentry_ids as $eachentry) {
 249                         $entry_ids[] = $eachentry[0];
 250                     }
 251                 } else { // delete a single article
 252                     $entry_ids = array($id);
 253                 }
 254                 foreach($entry_ids as $id) {
 255                     $msg = 'delete link #' . $id;
 256                     if ($this->store->deleteById($id, $this->user->getId())) {
 257                         if (DOWNLOAD_PICTURES) {
 258                             Picture::removeDirectory(ABS_PATH . $id);
 259                         }
 260                         $this->messages->add('s', _('the link has been deleted successfully'));
 261                     }
 262                     else {
 263                         $this->messages->add('e', _('the link wasn\'t deleted'));
 264                         $msg = 'error : can\'t delete link #' . $id;
 265                     }
 266                     Tools::logm($msg);
 267                 }
 268                 Tools::redirect('?');
 269                 break;
 270             case 'toggle_fav' :
 271                 $this->store->favoriteById($id, $this->user->getId());
 272                 Tools::logm('mark as favorite link #' . $id);
 273                 if ( Tools::isAjaxRequest() ) {
 274                   echo 1;
 275                   exit;
 276                 }
 277                 else {
 278                   Tools::redirect();
 279                 }
 280                 break;
 281             case 'toggle_archive' :
 282                 if (isset($_GET['tag_id'])) {
 283                     //when we want to archive a whole tag
 284                     $tag_id = $_GET['tag_id'];
 285                     $allentry_ids = $this->store->retrieveEntriesByTag($tag_id, $this->user->getId());
 286                     $entry_ids = array();
 287                     foreach ($allentry_ids as $eachentry) {
 288                         $entry_ids[] = $eachentry[0];
 289                     }
 290                 } else { //archive a single article
 291                     $entry_ids = array($id);
 292                 }
 293                 foreach($entry_ids as $id) {
 294                     $this->store->archiveById($id, $this->user->getId());
 295                     Tools::logm('archive link #' . $id);
 296                 }
 297                 if ( Tools::isAjaxRequest() ) {
 298                   echo 1;
 299                   exit;
 300                 }
 301                 else {
 302                   Tools::redirect();
 303                 }
 304                 break;
 305             case 'archive_all' :
 306                 $this->store->archiveAll($this->user->getId());
 307                 Tools::logm('archive all links');
 308                 Tools::redirect();
 309                 break;
 310             case 'add_tag' :
 311                 if (isset($_GET['search'])) {
 312                     //when we want to apply a tag to a search
 313                     $tags = array($_GET['search']);
 314                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 315                     $entry_ids = array();
 316                     foreach ($allentry_ids as $eachentry) {
 317                         $entry_ids[] = $eachentry[0];
 318                     }
 319                 } else { //add a tag to a single article
 320                     $tags = explode(',', $_POST['value']);
 321                     $entry_ids = array($_POST['entry_id']);
 322                 }
 323                 foreach($entry_ids as $entry_id) {
 324                     $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 325                     if (!$entry) {
 326                         $this->messages->add('e', _('Article not found!'));
 327                         Tools::logm('error : article not found');
 328                         Tools::redirect();
 329                     }
 330                     //get all already set tags to preven duplicates
 331                     $already_set_tags = array();
 332                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 333                     foreach ($entry_tags as $tag) {
 334                       $already_set_tags[] = $tag['value'];
 335                     }
 336                     foreach($tags as $key => $tag_value) {
 337                         $value = trim($tag_value);
 338                         if ($value && !in_array($value, $already_set_tags)) {
 339                           $tag = $this->store->retrieveTagByValue($value);
 340                           if (is_null($tag)) {
 341                               # we create the tag
 342                               $tag = $this->store->createTag($value);
 343                               $sequence = '';
 344                               if (STORAGE == 'postgres') {
 345                                   $sequence = 'tags_id_seq';
 346                               }
 347                               $tag_id = $this->store->getLastId($sequence);
 348                           }
 349                           else {
 350                               $tag_id = $tag['id'];
 351                           }
 352
 353                           # we assign the tag to the article
 354                           $this->store->setTagToEntry($tag_id, $entry_id);
 355                         }
 356                     }
 357                 }
 358                 $this->messages->add('s', _('The tag has been applied successfully'));
 359                 Tools::logm('The tag has been applied successfully');
 360                 Tools::redirect();
 361                 break;
 362             case 'remove_tag' :
 363                 $tag_id = $_GET['tag_id'];
 364                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 365                 if (!$entry) {
 366                     $this->messages->add('e', _('Article not found!'));
 367                     Tools::logm('error : article not found');
 368                     Tools::redirect();
 369                 }
 370                 $this->store->removeTagForEntry($id, $tag_id);
 371                 Tools::logm('tag entry deleted');
 372                 if ($this->store->cleanUnusedTag($tag_id)) {
 373                     Tools::logm('tag deleted');
 374                 }
 375                 $this->messages->add('s', _('The tag has been successfully deleted'));
 376                 Tools::redirect();
 377                 break;
 378
 379             case 'reload_article' :
 380                 Tools::logm('reload article');
 381                 $id = $_GET['id'];
 382                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 383                 Tools::logm('reload url ' . $entry['url']);
 384                 $url = new Url(base64_encode($entry['url']));
 385                 $this->action('add', $url);
 386                 break;
 387
 388             /* 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 */
 389             case 'random':
 390                 $id = 0;
 391                 while ($this->store->retrieveOneById($id,$this->user->getId()) == null) {
 392                     $count = $this->store->getEntriesByViewCount($view, $this->user->getId());
 393                     $id = rand(1,$count);
 394                 }
 395                 Tools::logm('get a random article');
 396                 Tools::redirect('?view=view&id=' . $id);
 397                 //$this->displayView('view', $id);
 398                 break;
 399             default:
 400                 break;
 401         }
 402     }
 403
 404     function displayView($view, $id = 0)
 405     {
 406         $tpl_vars = array();
 407
 408         switch ($view)
 409         {
 410             case 'about':
 411                 break;
 412             case 'config':
 413                 $dev_infos = $this->_getPocheVersion('dev');
 414                 $dev = trim($dev_infos[0]);
 415                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 416                 $prod_infos = $this->_getPocheVersion('prod');
 417                 $prod = trim($prod_infos[0]);
 418                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 419                 $compare_dev = version_compare(POCHE, $dev);
 420                 $compare_prod = version_compare(POCHE, $prod);
 421                 $themes = $this->tpl->getInstalledThemes();
 422                 $languages = $this->language->getInstalledLanguages();
 423                 $token = $this->user->getConfigValue('token');
 424                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 425                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 426                 $tpl_vars = array(
 427                     'themes' => $themes,
 428                     'languages' => $languages,
 429                     'dev' => $dev,
 430                     'prod' => $prod,
 431                     'check_time_dev' => $check_time_dev,
 432                     'check_time_prod' => $check_time_prod,
 433                     'compare_dev' => $compare_dev,
 434                     'compare_prod' => $compare_prod,
 435                     'token' => $token,
 436                     'user_id' => $this->user->getId(),
 437                     'http_auth' => $http_auth,
 438                     'only_user' => $only_user
 439                 );
 440                 Tools::logm('config view');
 441                 break;
 442             case 'edit-tags':
 443                 # tags
 444                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 445                 if (!$entry) {
 446                     $this->messages->add('e', _('Article not found!'));
 447                     Tools::logm('error : article not found');
 448                     Tools::redirect();
 449                 }
 450                 $tags = $this->store->retrieveTagsByEntry($id);
 451                 $tpl_vars = array(
 452                     'entry_id' => $id,
 453                     'tags' => $tags,
 454                     'entry' => $entry,
 455                 );
 456                 break;
 457             case 'tags':
 458                 $token = $this->user->getConfigValue('token');
 459                 //if term is set - search tags for this term
 460                 $term = Tools::checkVar('term');
 461                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 462                 if (Tools::isAjaxRequest()) {
 463                   $result = array();
 464                   foreach ($tags as $tag) {
 465                     $result[] = $tag['value'];
 466                   }
 467                   echo json_encode($result);
 468                   exit;
 469                 }
 470                 $tpl_vars = array(
 471                     'token' => $token,
 472                     'user_id' => $this->user->getId(),
 473                     'tags' => $tags,
 474                 );
 475                 break;
 476             case 'search':
 477                 if (isset($_GET['search'])) {
 478                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 479                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 480                    $count = count($tpl_vars['entries']);
 481                    $this->pagination->set_total($count);
 482                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 483                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 484                    $tpl_vars['page_links'] = $page_links;
 485                    $tpl_vars['nb_results'] = $count;
 486                    $tpl_vars['searchterm'] = $search;
 487                 }
 488                 break;
 489             case 'view':
 490                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 491                 if ($entry != NULL) {
 492                     Tools::logm('view link #' . $id);
 493                     $content = $entry['content'];
 494                     if (function_exists('tidy_parse_string')) {
 495                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 496                         $tidy->cleanRepair();
 497                         $content = $tidy->value;
 498                     }
 499
 500                     # flattr checking
 501                     $flattr = NULL;
 502                     if (FLATTR) {
 503                         $flattr = new FlattrItem();
 504                         $flattr->checkItem($entry['url'], $entry['id']);
 505                     }
 506
 507                     # tags
 508                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 509
 510                     $tpl_vars = array(
 511                         'entry' => $entry,
 512                         'content' => $content,
 513                         'flattr' => $flattr,
 514                         'tags' => $tags
 515                     );
 516                 }
 517                 else {
 518                     Tools::logm('error in view call : entry is null');
 519                 }
 520                 break;
 521             default: # home, favorites, archive and tag views
 522                 $tpl_vars = array(
 523                     'entries' => '',
 524                     'page_links' => '',
 525                     'nb_results' => '',
 526                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 527                 );
 528
 529                 //if id is given - we retrieve entries by tag: id is tag id
 530                 if ($id) {
 531                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 532                   $tpl_vars['id'] = intval($id);
 533                 }
 534
 535                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 536
 537                 if ($count > 0) {
 538                     $this->pagination->set_total($count);
 539                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 540                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 541                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 542                     $tpl_vars['page_links'] = $page_links;
 543                     $tpl_vars['nb_results'] = $count;
 544                 }
 545                 Tools::logm('display ' . $view . ' view');
 546                 break;
 547         }
 548
 549         return $tpl_vars;
 550     }
 551
 552     /**
 553      * update the password of the current user.
 554      * if MODE_DEMO is TRUE, the password can't be updated.
 555      * @todo add the return value
 556      * @todo set the new password in function header like this updatePassword($newPassword)
 557      * @return boolean
 558      */
 559     public function updatePassword($password, $confirmPassword)
 560     {
 561         if (MODE_DEMO) {
 562             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 563             Tools::logm('in demo mode, you can\'t do this');
 564             Tools::redirect('?view=config');
 565         }
 566         else {
 567             if (isset($password) && isset($confirmPassword)) {
 568                 if ($password == $confirmPassword && !empty($password)) {
 569                     $this->messages->add('s', _('your password has been updated'));
 570                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 571                     Session::logout();
 572                     Tools::logm('password updated');
 573                     Tools::redirect();
 574                 }
 575                 else {
 576                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 577                     Tools::redirect('?view=config');
 578                 }
 579             }
 580         }
 581     }
 582
 583     /**
 584      * Get credentials from differents sources
 585      * It redirects the user to the $referer link
 586      *
 587      * @return array
 588      */
 589     private function credentials()
 590     {
 591         if (isset($_SERVER['PHP_AUTH_USER'])) {
 592             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 593         }
 594         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 595             return array($_POST['login'], $_POST['password'], false);
 596         }
 597         if (isset($_SERVER['REMOTE_USER'])) {
 598             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 599         }
 600
 601         return array(false, false, false);
 602     }
 603
 604     /**
 605      * checks if login & password are correct and save the user in session.
 606      * it redirects the user to the $referer link
 607      * @param  string $referer the url to redirect after login
 608      * @todo add the return value
 609      * @return boolean
 610      */
 611     public function login($referer)
 612     {
 613         list($login,$password,$isauthenticated)=$this->credentials();
 614         if($login === false || $password === false) {
 615             $this->messages->add('e', _('login failed: you have to fill all fields'));
 616             Tools::logm('login failed');
 617             Tools::redirect();
 618         }
 619         if (!empty($login) && !empty($password)) {
 620             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 621             if ($user != array()) {
 622                 # Save login into Session
 623                 $longlastingsession = isset($_POST['longlastingsession']);
 624                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 625                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 626
 627                 # reload l10n
 628                 $language = $user['config']['language'];
 629                 @putenv('LC_ALL=' . $language);
 630                 setlocale(LC_ALL, $language);
 631                 bindtextdomain($language, LOCALE);
 632                 textdomain($language);
 633
 634                 $this->messages->add('s', _('welcome to your wallabag'));
 635                 Tools::logm('login successful');
 636                 Tools::redirect($referer);
 637             }
 638             $this->messages->add('e', _('login failed: bad login or password'));
 639             // log login failure in web server log to allow fail2ban usage
 640             error_log('user '.$login.' authentication failure');
 641             Tools::logm('login failed');
 642             Tools::redirect();
 643         }
 644     }
 645
 646     /**
 647      * log out the poche user. It cleans the session.
 648      * @todo add the return value
 649      * @return boolean
 650      */
 651     public function logout()
 652     {
 653         $this->user = array();
 654         Session::logout();
 655         Tools::logm('logout');
 656         Tools::redirect();
 657     }
 658
 659     /**
 660      * import datas into your wallabag
 661      * @return boolean
 662      */
 663
 664     public function import() {
 665
 666       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 667         Tools::logm('Import stated: parsing file');
 668
 669         // assume, that file is in json format
 670         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 671         $data = json_decode($str_data, true);
 672
 673         if ( $data === null ) {
 674           //not json - assume html
 675           $html = new simple_html_dom();
 676           $html->load_file($_FILES['file']['tmp_name']);
 677           $data = array();
 678           $read = 0;
 679           foreach (array('ol','ul') as $list) {
 680             foreach ($html->find($list) as $ul) {
 681               foreach ($ul->find('li') as $li) {
 682                 $tmpEntry = array();
 683                   $a = $li->find('a');
 684                   $tmpEntry['url'] = $a[0]->href;
 685                   $tmpEntry['tags'] = $a[0]->tags;
 686                   $tmpEntry['is_read'] = $read;
 687                   if ($tmpEntry['url']) {
 688                     $data[] = $tmpEntry;
 689                   }
 690               }
 691               # the second <ol/ul> is for read links
 692               $read = ((sizeof($data) && $read)?0:1);
 693             }
 694           }
 695         }
 696
 697             // for readability structure
 698
 699             foreach($data as $record) {
 700                 if (is_array($record)) {
 701                     $data[] = $record;
 702                     foreach($record as $record2) {
 703                         if (is_array($record2)) {
 704                             $data[] = $record2;
 705                         }
 706                     }
 707                 }
 708             }
 709
 710             $urlsInserted = array(); //urls of articles inserted
 711             foreach($data as $record) {
 712                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 713                 if ($url and !in_array($url, $urlsInserted)) {
 714                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 715                     $body = (isset($record['content']) ? $record['content'] : '');
 716                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 717                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 718
 719                     // insert new record
 720
 721                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 722                     if ($id) {
 723                         $urlsInserted[] = $url; //add
 724                         if (isset($record['tags']) && trim($record['tags'])) {
 725
 726                             $tags = explode(',', $record['tags']);
 727                                                         foreach($tags as $tag) {
 728                                                                 $entry_id = $id;
 729                                                                 $tag_id = $this->store->retrieveTagByValue($tag);
 730                                                                 if ($tag_id) {
 731                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 732                                                                 } else {
 733                                                                         $this->store->createTag($tag);
 734                                                                         $tag_id = $this->store->retrieveTagByValue($tag);
 735                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 736                                                                 }
 737                                                         }
 738
 739                         }
 740                     }
 741                 }
 742             }
 743
 744             $i = sizeof($urlsInserted);
 745             if ($i > 0) {
 746                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 747             }
 748
 749         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 750       }
 751       else {
 752         $this->messages->add('s', _('Did you forget to select a file?'));
 753       }
 754         // file parsing finished here
 755         // now download article contents if any
 756         // check if we need to download any content
 757
 758         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 759
 760         if ($recordsDownloadRequired == 0) {
 761
 762             // nothing to download
 763
 764             $this->messages->add('s', _('Import finished.'));
 765             Tools::logm('Import finished completely');
 766             Tools::redirect();
 767         }
 768         else {
 769
 770             // if just inserted - don't download anything, download will start in next reload
 771
 772             if (!isset($_FILES['file'])) {
 773
 774                 // download next batch
 775
 776                 Tools::logm('Fetching next batch of articles...');
 777                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 778                 $purifier = $this->_getPurifier();
 779                 foreach($items as $item) {
 780                     $url = new Url(base64_encode($item['url']));
 781                     if( $url->isCorrect() )
 782                     {
 783                         Tools::logm('Fetching article ' . $item['id']);
 784                         $content = Tools::getPageContent($url);
 785                         $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 786                         $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 787
 788                         // clean content to prevent xss attack
 789
 790                         $title = $purifier->purify($title);
 791                         $body = $purifier->purify($body);
 792                         $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 793                         Tools::logm('Article ' . $item['id'] . ' updated.');
 794                     } else
 795                     {
 796                         Tools::logm('Unvalid URL (' . $item['url'] .')  to fetch for article ' . $item['id']);
 797                     }
 798                 }
 799             }
 800         }
 801
 802         return array(
 803             'includeImport' => true,
 804             'import' => array(
 805                 'recordsDownloadRequired' => $recordsDownloadRequired,
 806                 'recordsUnderDownload' => IMPORT_LIMIT,
 807                 'delay' => IMPORT_DELAY * 1000
 808             )
 809         );
 810     }
 811
 812     /**
 813      * export poche entries in json
 814      * @return json all poche entries
 815      */
 816     public function export()
 817     {
 818       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 819       header('Content-Disposition: attachment; filename='.$filename);
 820
 821       $entries = $this->store->retrieveAll($this->user->getId());
 822       echo $this->tpl->render('export.twig', array(
 823           'export' => Tools::renderJson($entries),
 824       ));
 825       Tools::logm('export view');
 826     }
 827
 828     /**
 829      * Checks online the latest version of poche and cache it
 830      * @param  string $which 'prod' or 'dev'
 831      * @return string        latest $which version
 832      */
 833     private function _getPocheVersion($which = 'prod') {
 834       $cache_file = CACHE . '/' . $which;
 835       $check_time = time();
 836
 837       # checks if the cached version file exists
 838       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 839          $version = file_get_contents($cache_file);
 840          $check_time = filemtime($cache_file);
 841       } else {
 842          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 843          file_put_contents($cache_file, $version, LOCK_EX);
 844       }
 845       return array($version, $check_time);
 846     }
 847
 848     /**
 849      * Update token for current user
 850      */
 851     public function updateToken()
 852     {
 853         $token = Tools::generateToken();
 854         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 855         $currentConfig = $_SESSION['poche_user']->config;
 856         $currentConfig['token'] = $token;
 857         $_SESSION['poche_user']->setConfig($currentConfig);
 858         Tools::redirect();
 859     }
 860
 861     /**
 862      * Generate RSS feeds for current user
 863      *
 864      * @param $token
 865      * @param $user_id
 866      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 867      * @param string $type the type of feed to generate
 868      * @param int $limit the maximum number of items (0 means all)
 869      */
 870     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 871     {
 872         $allowed_types = array('home', 'fav', 'archive', 'tag');
 873         $config = $this->store->getConfigUser($user_id);
 874
 875         if ($config == null) {
 876             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 877         }
 878
 879         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 880             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 881         }
 882
 883         $feed = new FeedWriter(RSS2);
 884         $feed->setTitle('wallabag — ' . $type . ' feed');
 885         $feed->setLink(Tools::getPocheUrl());
 886         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 887         $feed->setChannelElement('generator', 'wallabag');
 888         $feed->setDescription('wallabag ' . $type . ' elements');
 889
 890         if ($type == 'tag') {
 891             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 892         }
 893         else {
 894             $entries = $this->store->getEntriesByView($type, $user_id);
 895         }
 896
 897         // if $limit is set to zero, use all entries
 898         if (0 == $limit) {
 899             $limit = count($entries);
 900         }
 901         if (count($entries) > 0) {
 902             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 903                 $entry = $entries[$i];
 904                 $newItem = $feed->createNewItem();
 905                 $newItem->setTitle($entry['title']);
 906                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 907                 $newItem->setLink($entry['url']);
 908                 $newItem->setDate(time());
 909                 $newItem->setDescription($entry['content']);
 910                 $feed->addItem($newItem);
 911             }
 912         }
 913
 914         $feed->genarateFeed();
 915         exit;
 916     }
 917
 918
 919
 920     /**
 921      * Returns new purifier object with actual config
 922      */
 923     private function _getPurifier()
 924     {
 925         $config = HTMLPurifier_Config::createDefault();
 926         $config->set('Cache.SerializerPath', CACHE);
 927         $config->set('HTML.SafeIframe', true);
 928
 929         //allow YouTube, Vimeo and dailymotion videos
 930         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
 931
 932         return new HTMLPurifier($config);
 933     }
 934
 935
 936 }