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://www.wtfpl.net/ see COPYING file
   9  */
  10
  11 class Poche
  12 {
  13     public static $canRenderTemplates = true;
  14     public static $configFileAvailable = true;
  15
  16     public $user;
  17     public $store;
  18     public $tpl;
  19     public $messages;
  20     public $pagination;
  21
  22     private $currentTheme = '';
  23     private $currentLanguage = '';
  24     private $notInstalledMessage = array();
  25
  26     private $language_names = array(
  27       'cs_CZ.utf8' => 'čeština',
  28       'de_DE.utf8' => 'German',
  29       'en_EN.utf8' => 'English',
  30       'es_ES.utf8' => 'Español',
  31       'fa_IR.utf8' => 'فارسی',
  32       'fr_FR.utf8' => 'Français',
  33       'it_IT.utf8' => 'Italiano',
  34       'pl_PL.utf8' => 'Polski',
  35       'pt_BR.utf8' => 'Português (Brasil)',
  36       'ru_RU.utf8' => 'Pусский',
  37       'sl_SI.utf8' => 'Slovenščina',
  38       'uk_UA.utf8' => 'Українська',
  39     );
  40     public function __construct()
  41     {
  42         if ($this->configFileIsAvailable()) {
  43             $this->init();
  44         }
  45
  46         if ($this->themeIsInstalled()) {
  47             $this->initTpl();
  48         }
  49
  50         if ($this->systemIsInstalled()) {
  51             $this->store = new Database();
  52             $this->messages = new Messages();
  53             # installation
  54             if (! $this->store->isInstalled()) {
  55                 $this->install();
  56             }
  57             $this->store->checkTags();
  58         }
  59     }
  60
  61     private function init()
  62     {
  63         Tools::initPhp();
  64
  65         if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
  66             $this->user = $_SESSION['poche_user'];
  67         } else {
  68             # fake user, just for install & login screens
  69             $this->user = new User();
  70             $this->user->setConfig($this->getDefaultConfig());
  71         }
  72
  73         # l10n
  74         $language = $this->user->getConfigValue('language');
  75         putenv('LC_ALL=' . $language);
  76         setlocale(LC_ALL, $language);
  77         bindtextdomain($language, LOCALE);
  78         textdomain($language);
  79
  80         # Pagination
  81         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
  82
  83         # Set up theme
  84         $themeDirectory = $this->user->getConfigValue('theme');
  85
  86         if ($themeDirectory === false) {
  87             $themeDirectory = DEFAULT_THEME;
  88         }
  89
  90         $this->currentTheme = $themeDirectory;
  91
  92         # Set up language
  93         $languageDirectory = $this->user->getConfigValue('language');
  94
  95         if ($languageDirectory === false) {
  96             $languageDirectory = DEFAULT_THEME;
  97         }
  98
  99         $this->currentLanguage = $languageDirectory;
 100     }
 101
 102     public function configFileIsAvailable() {
 103         if (! self::$configFileAvailable) {
 104             $this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.';
 105
 106             return false;
 107         }
 108
 109         return true;
 110     }
 111
 112     public function themeIsInstalled() {
 113         $passTheme = TRUE;
 114         # Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet
 115         if (! self::$canRenderTemplates) {
 116             $this->notInstalledMessage[] = 'Twig does not seem to be installed. Please initialize the Composer installation to automatically fetch dependencies. You can also download <a href="http://wllbg.org/vendor">vendor.zip</a> and extract it in your wallabag folder.';
 117             $passTheme = FALSE;
 118         }
 119
 120         if (! is_writable(CACHE)) {
 121             $this->notInstalledMessage[] = 'You don\'t have write access on cache directory.';
 122
 123             self::$canRenderTemplates = false;
 124
 125             $passTheme = FALSE;
 126         }
 127
 128         # Check if the selected theme and its requirements are present
 129         $theme = $this->getTheme();
 130
 131         if ($theme != '' && ! is_dir(THEME . '/' . $theme)) {
 132             $this->notInstalledMessage[] = 'The currently selected theme (' . $theme . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $theme . ')';
 133
 134             self::$canRenderTemplates = false;
 135
 136             $passTheme = FALSE;
 137         }
 138
 139         $themeInfo = $this->getThemeInfo($theme);
 140         if (isset($themeInfo['requirements']) && is_array($themeInfo['requirements'])) {
 141             foreach ($themeInfo['requirements'] as $requiredTheme) {
 142                 if (! is_dir(THEME . '/' . $requiredTheme)) {
 143                     $this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $theme . ')';
 144
 145                     self::$canRenderTemplates = false;
 146
 147                     $passTheme = FALSE;
 148                 }
 149             }
 150         }
 151
 152         if (!$passTheme) {
 153             return FALSE;
 154         }
 155
 156
 157         return true;
 158     }
 159
 160     /**
 161      * all checks before installation.
 162      * @todo move HTML to template
 163      * @return boolean
 164      */
 165     public function systemIsInstalled()
 166     {
 167         $msg = TRUE;
 168
 169         $configSalt = defined('SALT') ? constant('SALT') : '';
 170
 171         if (empty($configSalt)) {
 172             $this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.';
 173             $msg = FALSE;
 174         }
 175         if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) {
 176             Tools::logm('sqlite file doesn\'t exist');
 177             $this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.';
 178             $msg = FALSE;
 179         }
 180         if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) {
 181             $this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.';
 182             $msg = FALSE;
 183         }
 184         if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) {
 185             Tools::logm('you don\'t have write access on sqlite file');
 186             $this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.';
 187             $msg = FALSE;
 188         }
 189
 190         if (! $msg) {
 191             return false;
 192         }
 193
 194         return true;
 195     }
 196
 197     public function getNotInstalledMessage() {
 198         return $this->notInstalledMessage;
 199     }
 200
 201     private function initTpl()
 202     {
 203         $loaderChain = new Twig_Loader_Chain();
 204         $theme = $this->getTheme();
 205
 206         # add the current theme as first to the loader chain so Twig will look there first for overridden template files
 207         try {
 208             $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $theme));
 209         } catch (Twig_Error_Loader $e) {
 210             # @todo isInstalled() should catch this, inject Twig later
 211             die('The currently selected theme (' . $theme . ') does not seem to be properly installed (' . THEME . '/' . $theme .' is missing)');
 212         }
 213
 214         # add all required themes to the loader chain
 215         $themeInfo = $this->getThemeInfo($theme);
 216         if (isset($themeInfo['requirements']) && is_array($themeInfo['requirements'])) {
 217             foreach ($themeInfo['requirements'] as $requiredTheme) {
 218                 try {
 219                     $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $requiredTheme));
 220                 } catch (Twig_Error_Loader $e) {
 221                     # @todo isInstalled() should catch this, inject Twig later
 222                     die('The required "' . $requiredTheme . '" theme is missing for the current theme (' . $theme . ')');
 223                 }
 224             }
 225         }
 226
 227         if (DEBUG_POCHE) {
 228             $twigParams = array();
 229         } else {
 230             $twigParams = array('cache' => CACHE);
 231         }
 232
 233         $this->tpl = new Twig_Environment($loaderChain, $twigParams);
 234         $this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
 235
 236         # filter to display domain name of an url
 237         $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
 238         $this->tpl->addFilter($filter);
 239
 240         # filter for reading time
 241         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
 242         $this->tpl->addFilter($filter);
 243     }
 244
 245     public function createNewUser() {
 246         if (isset($_GET['newuser'])){
 247             if ($_POST['newusername'] != "" && $_POST['password4newuser'] != ""){
 248                 $newusername = filter_var($_POST['newusername'], FILTER_SANITIZE_STRING);
 249                 if (!$this->store->userExists($newusername)){
 250                     if ($this->store->install($newusername, Tools::encodeString($_POST['password4newuser'] . $newusername))) {
 251                         Tools::logm('The new user '.$newusername.' has been installed');
 252                         $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'),$newusername));
 253                         Tools::redirect();
 254                     }
 255                     else {
 256                         Tools::logm('error during adding new user');
 257                         Tools::redirect();
 258                     }
 259                 }
 260                 else {
 261                     $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'),$newusername));
 262                     Tools::logm('An user with the name '.$newusername.' already exists !');
 263                     Tools::redirect();
 264                 }
 265             }
 266         }
 267     }
 268
 269     public function deleteUser(){
 270         if (isset($_GET['deluser'])){
 271             if ($this->store->listUsers() > 1) {
 272                 if (Tools::encodeString($_POST['password4deletinguser'].$this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
 273                     $username = $this->user->getUsername();
 274                     $this->store->deleteUserConfig($this->user->getId());
 275                     Tools::logm('The configuration for user '. $username .' has been deleted !');
 276                     $this->store->deleteTagsEntriesAndEntries($this->user->getId());
 277                     Tools::logm('The entries for user '. $username .' has been deleted !');
 278                     $this->store->deleteUser($this->user->getId());
 279                     Tools::logm('User '. $username .' has been completely deleted !');
 280                     Session::logout();
 281                     Tools::logm('logout');
 282                     Tools::redirect();
 283                     $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'),$newusername));
 284                 }
 285                 else {
 286                     Tools::logm('Bad password !');
 287                     $this->messages->add('e', _('Error : The password is wrong !'));
 288                 }
 289             }
 290             else {
 291                 Tools::logm('Only user !');
 292                 $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
 293             }
 294         }
 295     }
 296
 297     private function install()
 298     {
 299         Tools::logm('poche still not installed');
 300         echo $this->tpl->render('install.twig', array(
 301             'token' => Session::getToken(),
 302             'theme' => $this->getTheme(),
 303             'poche_url' => Tools::getPocheUrl()
 304         ));
 305         if (isset($_GET['install'])) {
 306             if (($_POST['password'] == $_POST['password_repeat'])
 307                 && $_POST['password'] != "" && $_POST['login'] != "") {
 308                 # let's rock, install poche baby !
 309                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 310                 {
 311                     Session::logout();
 312                     Tools::logm('poche is now installed');
 313                     Tools::redirect();
 314                 }
 315             }
 316             else {
 317                 Tools::logm('error during installation');
 318                 Tools::redirect();
 319             }
 320         }
 321         exit();
 322     }
 323
 324     public function getTheme() {
 325         return $this->currentTheme;
 326     }
 327
 328     /**
 329      * Provides theme information by parsing theme.ini file if present in the theme's root directory.
 330      * In all cases, the following data will be returned:
 331      * - name: theme's name, or key if the theme is unnamed,
 332      * - current: boolean informing if the theme is the current user theme.
 333      *
 334      * @param string $theme Theme key (directory name)
 335      * @return array|boolean Theme information, or false if the theme doesn't exist.
 336      */
 337     public function getThemeInfo($theme) {
 338         if (!is_dir(THEME . '/' . $theme)) {
 339             return false;
 340         }
 341
 342         $themeIniFile = THEME . '/' . $theme . '/theme.ini';
 343         $themeInfo = array();
 344
 345         if (is_file($themeIniFile) && is_readable($themeIniFile)) {
 346             $themeInfo = parse_ini_file($themeIniFile);
 347         }
 348
 349         if ($themeInfo === false) {
 350             $themeInfo = array();
 351         }
 352         if (!isset($themeInfo['name'])) {
 353             $themeInfo['name'] = $theme;
 354         }
 355         $themeInfo['current'] = ($theme === $this->getTheme());
 356
 357         return $themeInfo;
 358     }
 359
 360     public function getInstalledThemes() {
 361         $handle = opendir(THEME);
 362         $themes = array();
 363
 364         while (($theme = readdir($handle)) !== false) {
 365             # Themes are stored in a directory, so all directory names are themes
 366             # @todo move theme installation data to database
 367             if (!is_dir(THEME . '/' . $theme) || in_array($theme, array('.', '..'))) {
 368                 continue;
 369             }
 370
 371             $themes[$theme] = $this->getThemeInfo($theme);
 372         }
 373
 374         ksort($themes);
 375
 376         return $themes;
 377     }
 378
 379     public function getLanguage() {
 380         return $this->currentLanguage;
 381     }
 382
 383     public function getInstalledLanguages() {
 384         $handle = opendir(LOCALE);
 385         $languages = array();
 386
 387         while (($language = readdir($handle)) !== false) {
 388             # Languages are stored in a directory, so all directory names are languages
 389             # @todo move language installation data to database
 390             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.', 'tools'))) {
 391                 continue;
 392             }
 393
 394             $current = false;
 395
 396             if ($language === $this->getLanguage()) {
 397                 $current = true;
 398             }
 399
 400             $languages[] = array('name' => (isset($this->language_names[$language]) ? $this->language_names[$language] : $language), 'value' => $language, 'current' => $current);
 401         }
 402
 403         return $languages;
 404     }
 405
 406     public function getDefaultConfig()
 407     {
 408         return array(
 409             'pager' => PAGINATION,
 410             'language' => LANG,
 411             'theme' => DEFAULT_THEME
 412         );
 413     }
 414
 415     /**
 416      * Call action (mark as fav, archive, delete, etc.)
 417      */
 418     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 419     {
 420         switch ($action)
 421         {
 422             case 'add':
 423                 $content = Tools::getPageContent($url);
 424                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 425                 $body = $content['rss']['channel']['item']['description'];
 426
 427                 // clean content from prevent xss attack
 428                 $purifier = $this->getPurifier();
 429                 $title = $purifier->purify($title);
 430                 $body = $purifier->purify($body);
 431
 432                 //search for possible duplicate
 433                 $duplicate = NULL;
 434                 $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 435
 436                 $last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
 437                 if ( $last_id ) {
 438                     Tools::logm('add link ' . $url->getUrl());
 439                     if (DOWNLOAD_PICTURES) {
 440                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 441                         Tools::logm('updating content article');
 442                         $this->store->updateContent($last_id, $content, $this->user->getId());
 443                     }
 444
 445                     if ($duplicate != NULL) {
 446                         // 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
 447                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 448                         // 1) - preserve tags and favorite, then drop old entry
 449                         $this->store->reassignTags($duplicate['id'], $last_id);
 450                         if ($duplicate['is_fav']) {
 451                           $this->store->favoriteById($last_id, $this->user->getId());
 452                         }
 453                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 454                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 455                         }
 456                     }
 457
 458                     $this->messages->add('s', _('the link has been added successfully'));
 459                 }
 460                 else {
 461                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 462                     Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 463                 }
 464
 465                 if ($autoclose == TRUE) {
 466                   Tools::redirect('?view=home');
 467                 } else {
 468                   Tools::redirect('?view=home&closewin=true');
 469                 }
 470                 break;
 471             case 'delete':
 472                 $msg = 'delete link #' . $id;
 473                 if ($this->store->deleteById($id, $this->user->getId())) {
 474                     if (DOWNLOAD_PICTURES) {
 475                         remove_directory(ABS_PATH . $id);
 476                     }
 477                     $this->messages->add('s', _('the link has been deleted successfully'));
 478                 }
 479                 else {
 480                     $this->messages->add('e', _('the link wasn\'t deleted'));
 481                     $msg = 'error : can\'t delete link #' . $id;
 482                 }
 483                 Tools::logm($msg);
 484                 Tools::redirect('?');
 485                 break;
 486             case 'toggle_fav' :
 487                 $this->store->favoriteById($id, $this->user->getId());
 488                 Tools::logm('mark as favorite link #' . $id);
 489                 Tools::redirect();
 490                 break;
 491             case 'toggle_archive' :
 492                 $this->store->archiveById($id, $this->user->getId());
 493                 Tools::logm('archive link #' . $id);
 494                 Tools::redirect();
 495                 break;
 496             case 'archive_all' :
 497                 $this->store->archiveAll($this->user->getId());
 498                 Tools::logm('archive all links');
 499                 Tools::redirect();
 500                 break;
 501             case 'add_tag' :
 502                 $tags = explode(',', $_POST['value']);
 503                 $entry_id = $_POST['entry_id'];
 504                 $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 505                 if (!$entry) {
 506                     $this->messages->add('e', _('Article not found!'));
 507                     Tools::logm('error : article not found');
 508                     Tools::redirect();
 509                 }
 510                 //get all already set tags to preven duplicates
 511                 $already_set_tags = array();
 512                 $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 513                 foreach ($entry_tags as $tag) {
 514                   $already_set_tags[] = $tag['value'];
 515                 }
 516                 foreach($tags as $key => $tag_value) {
 517                     $value = trim($tag_value);
 518                     if ($value && !in_array($value, $already_set_tags)) {
 519                       $tag = $this->store->retrieveTagByValue($value);
 520
 521                       if (is_null($tag)) {
 522                           # we create the tag
 523                           $tag = $this->store->createTag($value);
 524                           $sequence = '';
 525                           if (STORAGE == 'postgres') {
 526                               $sequence = 'tags_id_seq';
 527                           }
 528                           $tag_id = $this->store->getLastId($sequence);
 529                       }
 530                       else {
 531                           $tag_id = $tag['id'];
 532                       }
 533
 534                       # we assign the tag to the article
 535                       $this->store->setTagToEntry($tag_id, $entry_id);
 536                     }
 537                 }
 538                 Tools::redirect();
 539                 break;
 540             case 'remove_tag' :
 541                 $tag_id = $_GET['tag_id'];
 542                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 543                 if (!$entry) {
 544                     $this->messages->add('e', _('Article not found!'));
 545                     Tools::logm('error : article not found');
 546                     Tools::redirect();
 547                 }
 548                 $this->store->removeTagForEntry($id, $tag_id);
 549                 Tools::redirect();
 550                 break;
 551             default:
 552                 break;
 553         }
 554     }
 555
 556     function displayView($view, $id = 0)
 557     {
 558         $tpl_vars = array();
 559
 560         switch ($view)
 561         {
 562             case 'config':
 563                 $dev_infos = $this->getPocheVersion('dev');
 564                 $dev = trim($dev_infos[0]);
 565                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 566                 $prod_infos = $this->getPocheVersion('prod');
 567                 $prod = trim($prod_infos[0]);
 568                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 569                 $compare_dev = version_compare(POCHE, $dev);
 570                 $compare_prod = version_compare(POCHE, $prod);
 571                 $themes = $this->getInstalledThemes();
 572                 $languages = $this->getInstalledLanguages();
 573                 $token = $this->user->getConfigValue('token');
 574                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 575                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 576                 $tpl_vars = array(
 577                     'themes' => $themes,
 578                     'languages' => $languages,
 579                     'dev' => $dev,
 580                     'prod' => $prod,
 581                     'check_time_dev' => $check_time_dev,
 582                     'check_time_prod' => $check_time_prod,
 583                     'compare_dev' => $compare_dev,
 584                     'compare_prod' => $compare_prod,
 585                     'token' => $token,
 586                     'user_id' => $this->user->getId(),
 587                     'http_auth' => $http_auth,
 588                     'only_user' => $only_user
 589                 );
 590                 Tools::logm('config view');
 591                 break;
 592             case 'edit-tags':
 593                 # tags
 594                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 595                 if (!$entry) {
 596                     $this->messages->add('e', _('Article not found!'));
 597                     Tools::logm('error : article not found');
 598                     Tools::redirect();
 599                 }
 600                 $tags = $this->store->retrieveTagsByEntry($id);
 601                 $tpl_vars = array(
 602                     'entry_id' => $id,
 603                     'tags' => $tags,
 604                     'entry' => $entry,
 605                 );
 606                 break;
 607             case 'tags':
 608                 $token = $this->user->getConfigValue('token');
 609                 //if term is set - search tags for this term
 610                 $term = Tools::checkVar('term');
 611                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 612                 if (Tools::isAjaxRequest()) {
 613                   $result = array();
 614                   foreach ($tags as $tag) {
 615                     $result[] = $tag['value'];
 616                   }
 617                   echo json_encode($result);
 618                   exit;
 619                 }
 620                 $tpl_vars = array(
 621                     'token' => $token,
 622                     'user_id' => $this->user->getId(),
 623                     'tags' => $tags,
 624                 );
 625                 break;
 626             case 'search':
 627                 if (isset($_GET['search'])) {
 628                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 629                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 630                    $count = count($tpl_vars['entries']);
 631                    $this->pagination->set_total($count);
 632                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 633                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 634                    $tpl_vars['page_links'] = $page_links;
 635                    $tpl_vars['nb_results'] = $count;
 636                    $tpl_vars['search_term'] = $search;
 637                 }
 638                 break;
 639             case 'view':
 640                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 641                 if ($entry != NULL) {
 642                     Tools::logm('view link #' . $id);
 643                     $content = $entry['content'];
 644                     if (function_exists('tidy_parse_string')) {
 645                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 646                         $tidy->cleanRepair();
 647                         $content = $tidy->value;
 648                     }
 649
 650                     # flattr checking
 651                     $flattr = new FlattrItem();
 652                     $flattr->checkItem($entry['url'], $entry['id']);
 653
 654                     # tags
 655                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 656
 657                     $tpl_vars = array(
 658                         'entry' => $entry,
 659                         'content' => $content,
 660                         'flattr' => $flattr,
 661                         'tags' => $tags
 662                     );
 663                 }
 664                 else {
 665                     Tools::logm('error in view call : entry is null');
 666                 }
 667                 break;
 668             default: # home, favorites, archive and tag views
 669                 $tpl_vars = array(
 670                     'entries' => '',
 671                     'page_links' => '',
 672                     'nb_results' => '',
 673                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 674                 );
 675
 676                 //if id is given - we retrive entries by tag: id is tag id
 677                 if ($id) {
 678                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 679                   $tpl_vars['id'] = intval($id);
 680                 }
 681
 682                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 683
 684                 if ($count > 0) {
 685                     $this->pagination->set_total($count);
 686                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 687                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 688                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 689                     $tpl_vars['page_links'] = $page_links;
 690                     $tpl_vars['nb_results'] = $count;
 691                 }
 692                 Tools::logm('display ' . $view . ' view');
 693                 break;
 694         }
 695
 696         return $tpl_vars;
 697     }
 698
 699     /**
 700      * update the password of the current user.
 701      * if MODE_DEMO is TRUE, the password can't be updated.
 702      * @todo add the return value
 703      * @todo set the new password in function header like this updatePassword($newPassword)
 704      * @return boolean
 705      */
 706     public function updatePassword()
 707     {
 708         if (MODE_DEMO) {
 709             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 710             Tools::logm('in demo mode, you can\'t do this');
 711             Tools::redirect('?view=config');
 712         }
 713         else {
 714             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 715                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 716                     $this->messages->add('s', _('your password has been updated'));
 717                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 718                     Session::logout();
 719                     Tools::logm('password updated');
 720                     Tools::redirect();
 721                 }
 722                 else {
 723                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 724                     Tools::redirect('?view=config');
 725                 }
 726             }
 727         }
 728     }
 729
 730     public function updateTheme()
 731     {
 732         # no data
 733         if (empty($_POST['theme'])) {
 734         }
 735
 736         # we are not going to change it to the current theme...
 737         if ($_POST['theme'] == $this->getTheme()) {
 738             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 739             Tools::redirect('?view=config');
 740         }
 741
 742         $themes = $this->getInstalledThemes();
 743         $actualTheme = false;
 744
 745         foreach (array_keys($themes) as $theme) {
 746             if ($theme == $_POST['theme']) {
 747                 $actualTheme = true;
 748                 break;
 749             }
 750         }
 751
 752         if (! $actualTheme) {
 753             $this->messages->add('e', _('that theme does not seem to be installed'));
 754             Tools::redirect('?view=config');
 755         }
 756
 757         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 758         $this->messages->add('s', _('you have changed your theme preferences'));
 759
 760         $currentConfig = $_SESSION['poche_user']->config;
 761         $currentConfig['theme'] = $_POST['theme'];
 762
 763         $_SESSION['poche_user']->setConfig($currentConfig);
 764
 765         $this->emptyCache();
 766
 767         Tools::redirect('?view=config');
 768     }
 769
 770     public function updateLanguage()
 771     {
 772         # no data
 773         if (empty($_POST['language'])) {
 774         }
 775
 776         # we are not going to change it to the current language...
 777         if ($_POST['language'] == $this->getLanguage()) {
 778             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 779             Tools::redirect('?view=config');
 780         }
 781
 782         $languages = $this->getInstalledLanguages();
 783         $actualLanguage = false;
 784
 785         foreach ($languages as $language) {
 786             if ($language['value'] == $_POST['language']) {
 787                 $actualLanguage = true;
 788                 break;
 789             }
 790         }
 791
 792         if (! $actualLanguage) {
 793             $this->messages->add('e', _('that language does not seem to be installed'));
 794             Tools::redirect('?view=config');
 795         }
 796
 797         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 798         $this->messages->add('s', _('you have changed your language preferences'));
 799
 800         $currentConfig = $_SESSION['poche_user']->config;
 801         $currentConfig['language'] = $_POST['language'];
 802
 803         $_SESSION['poche_user']->setConfig($currentConfig);
 804
 805         $this->emptyCache();
 806
 807         Tools::redirect('?view=config');
 808     }
 809     /**
 810      * get credentials from differents sources
 811      * it redirects the user to the $referer link
 812      * @return array
 813      */
 814     private function credentials() {
 815         if(isset($_SERVER['PHP_AUTH_USER'])) {
 816             return array($_SERVER['PHP_AUTH_USER'],'php_auth',true);
 817         }
 818         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 819             return array($_POST['login'],$_POST['password'],false);
 820         }
 821         if(isset($_SERVER['REMOTE_USER'])) {
 822             return array($_SERVER['REMOTE_USER'],'http_auth',true);
 823         }
 824
 825         return array(false,false,false);
 826     }
 827
 828     /**
 829      * checks if login & password are correct and save the user in session.
 830      * it redirects the user to the $referer link
 831      * @param  string $referer the url to redirect after login
 832      * @todo add the return value
 833      * @return boolean
 834      */
 835     public function login($referer)
 836     {
 837         list($login,$password,$isauthenticated)=$this->credentials();
 838         if($login === false || $password === false) {
 839             $this->messages->add('e', _('login failed: you have to fill all fields'));
 840             Tools::logm('login failed');
 841             Tools::redirect();
 842         }
 843         if (!empty($login) && !empty($password)) {
 844             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 845             if ($user != array()) {
 846                 # Save login into Session
 847                 $longlastingsession = isset($_POST['longlastingsession']);
 848                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 849                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 850                 $this->messages->add('s', _('welcome to your wallabag'));
 851                 Tools::logm('login successful');
 852                 Tools::redirect($referer);
 853             }
 854             $this->messages->add('e', _('login failed: bad login or password'));
 855             Tools::logm('login failed');
 856             Tools::redirect();
 857         }
 858     }
 859
 860     /**
 861      * log out the poche user. It cleans the session.
 862      * @todo add the return value
 863      * @return boolean
 864      */
 865     public function logout()
 866     {
 867         $this->user = array();
 868         Session::logout();
 869         Tools::logm('logout');
 870         Tools::redirect();
 871     }
 872
 873     /**
 874      * import datas into your poche
 875      * @return boolean
 876      */
 877     public function import() {
 878
 879       if (!defined('IMPORT_LIMIT')) {
 880         define('IMPORT_LIMIT', 5);
 881       }
 882       if (!defined('IMPORT_DELAY')) {
 883         define('IMPORT_DELAY', 5);
 884       }
 885
 886       if ( isset($_FILES['file']) ) {
 887         Tools::logm('Import stated: parsing file');
 888
 889         // assume, that file is in json format
 890         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 891         $data = json_decode($str_data, true);
 892
 893         if ( $data === null ) {
 894           //not json - assume html
 895           $html = new simple_html_dom();
 896           $html->load_file($_FILES['file']['tmp_name']);
 897           $data = array();
 898           $read = 0;
 899           foreach (array('ol','ul') as $list) {
 900             foreach ($html->find($list) as $ul) {
 901               foreach ($ul->find('li') as $li) {
 902                 $tmpEntry = array();
 903                   $a = $li->find('a');
 904                   $tmpEntry['url'] = $a[0]->href;
 905                   $tmpEntry['tags'] = $a[0]->tags;
 906                   $tmpEntry['is_read'] = $read;
 907                   if ($tmpEntry['url']) {
 908                     $data[] = $tmpEntry;
 909                   }
 910               }
 911               # the second <ol/ul> is for read links
 912               $read = ((sizeof($data) && $read)?0:1);
 913             }
 914           }
 915         }
 916
 917         //for readability structure
 918         foreach ($data as $record) {
 919           if (is_array($record)) {
 920             $data[] = $record;
 921             foreach ($record as $record2) {
 922               if (is_array($record2)) {
 923                 $data[] = $record2;
 924               }
 925             }
 926           }
 927         }
 928
 929         $urlsInserted = array(); //urls of articles inserted
 930         foreach ($data as $record) {
 931           $url = trim( isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : '') );
 932           if ( $url and !in_array($url, $urlsInserted) ) {
 933             $title = (isset($record['title']) ? $record['title'] :  _('Untitled - Import - ').'</a> <a href="./?import">'._('click to finish import').'</a><a>');
 934             $body = (isset($record['content']) ? $record['content'] : '');
 935             $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive'])?intval($record['archive']):0));
 936             $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite'])?intval($record['favorite']):0) );
 937             //insert new record
 938             $id = $this->store->add($url, $title, $body, $this->user->getId(), $isFavorite, $isRead);
 939             if ( $id ) {
 940               $urlsInserted[] = $url; //add
 941
 942               if ( isset($record['tags']) && trim($record['tags']) ) {
 943                 //@TODO: set tags
 944
 945               }
 946             }
 947           }
 948         }
 949
 950         $i = sizeof($urlsInserted);
 951         if ( $i > 0 ) {
 952           $this->messages->add('s', _('Articles inserted: ').$i._('. Please note, that some may be marked as "read".'));
 953         }
 954         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 955       }
 956       //file parsing finished here
 957
 958       //now download article contents if any
 959
 960       //check if we need to download any content
 961       $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 962       if ( $recordsDownloadRequired == 0 ) {
 963         //nothing to download
 964         $this->messages->add('s', _('Import finished.'));
 965         Tools::logm('Import finished completely');
 966         Tools::redirect();
 967       }
 968       else {
 969         //if just inserted - don't download anything, download will start in next reload
 970         if ( !isset($_FILES['file']) ) {
 971           //download next batch
 972           Tools::logm('Fetching next batch of articles...');
 973           $items = $this->store->retrieveUnfetchedEntries($this->user->getId(), IMPORT_LIMIT);
 974
 975           $purifier = $this->getPurifier();
 976
 977           foreach ($items as $item) {
 978             $url = new Url(base64_encode($item['url']));
 979             Tools::logm('Fetching article '.$item['id']);
 980             $content = Tools::getPageContent($url);
 981
 982             $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 983             $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 984
 985             //clean content to prevent xss attack
 986             $title = $purifier->purify($title);
 987             $body = $purifier->purify($body);
 988
 989             $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 990             Tools::logm('Article '.$item['id'].' updated.');
 991           }
 992
 993         }
 994       }
 995
 996       return array('includeImport'=>true, 'import'=>array('recordsDownloadRequired'=>$recordsDownloadRequired, 'recordsUnderDownload'=> IMPORT_LIMIT, 'delay'=> IMPORT_DELAY * 1000) );
 997     }
 998
 999     /**
1000      * export poche entries in json
1001      * @return json all poche entries
1002      */
1003     public function export() {
1004       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
1005       header('Content-Disposition: attachment; filename='.$filename);
1006
1007       $entries = $this->store->retrieveAll($this->user->getId());
1008       echo $this->tpl->render('export.twig', array(
1009           'export' => Tools::renderJson($entries),
1010       ));
1011       Tools::logm('export view');
1012     }
1013
1014     /**
1015      * Checks online the latest version of poche and cache it
1016      * @param  string $which 'prod' or 'dev'
1017      * @return string        latest $which version
1018      */
1019     private function getPocheVersion($which = 'prod') {
1020       $cache_file = CACHE . '/' . $which;
1021       $check_time = time();
1022
1023       # checks if the cached version file exists
1024       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
1025          $version = file_get_contents($cache_file);
1026          $check_time = filemtime($cache_file);
1027       } else {
1028          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
1029          file_put_contents($cache_file, $version, LOCK_EX);
1030       }
1031       return array($version, $check_time);
1032     }
1033
1034     public function generateToken()
1035     {
1036       if (ini_get('open_basedir') === '') {
1037         if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1038           echo 'This is a server using Windows!';
1039           // alternative to /dev/urandom for Windows
1040           $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
1041         } else {
1042           $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
1043         }
1044       }
1045       else {
1046         $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
1047       }
1048
1049       $token = str_replace('+', '', $token);
1050       $this->store->updateUserConfig($this->user->getId(), 'token', $token);
1051       $currentConfig = $_SESSION['poche_user']->config;
1052       $currentConfig['token'] = $token;
1053       $_SESSION['poche_user']->setConfig($currentConfig);
1054       Tools::redirect();
1055     }
1056
1057     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
1058     {
1059         $allowed_types = array('home', 'fav', 'archive', 'tag');
1060         $config = $this->store->getConfigUser($user_id);
1061
1062         if ($config == null) {
1063             die(_('User with this id (' . $user_id . ') does not exist.'));
1064         }
1065
1066         if (!in_array($type, $allowed_types) ||
1067             $token != $config['token']) {
1068             die(_('Uh, there is a problem while generating feeds.'));
1069         }
1070         // Check the token
1071
1072         $feed = new FeedWriter(RSS2);
1073         $feed->setTitle('wallabag — ' . $type . ' feed');
1074         $feed->setLink(Tools::getPocheUrl());
1075         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
1076         $feed->setChannelElement('generator', 'wallabag');
1077         $feed->setDescription('wallabag ' . $type . ' elements');
1078
1079         if ($type == 'tag') {
1080             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
1081         }
1082         else {
1083             $entries = $this->store->getEntriesByView($type, $user_id);
1084         }
1085
1086         if (count($entries) > 0) {
1087             foreach ($entries as $entry) {
1088                 $newItem = $feed->createNewItem();
1089                 $newItem->setTitle($entry['title']);
1090                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1091                 $newItem->setLink($entry['url']);
1092                 $newItem->setDate(time());
1093                 $newItem->setDescription($entry['content']);
1094                 $feed->addItem($newItem);
1095             }
1096         }
1097
1098         $feed->genarateFeed();
1099         exit;
1100     }
1101
1102     public function emptyCache() {
1103         $files = new RecursiveIteratorIterator(
1104             new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
1105             RecursiveIteratorIterator::CHILD_FIRST
1106         );
1107
1108         foreach ($files as $fileinfo) {
1109             $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
1110             $todo($fileinfo->getRealPath());
1111         }
1112
1113         Tools::logm('empty cache');
1114         $this->messages->add('s', _('Cache deleted.'));
1115         Tools::redirect();
1116     }
1117
1118     /**
1119      * return new purifier object with actual config
1120      */
1121     protected function getPurifier() {
1122       $config = HTMLPurifier_Config::createDefault();
1123       $config->set('Cache.SerializerPath', CACHE);
1124       $config->set('HTML.SafeIframe', true);
1125       $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/)%'); //allow YouTube and Vimeo$purifier = new HTMLPurifier($config);
1126
1127       return new HTMLPurifier($config);
1128     }
1129 }