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     private function install()
 246     {
 247         Tools::logm('poche still not installed');
 248         echo $this->tpl->render('install.twig', array(
 249             'token' => Session::getToken(),
 250             'theme' => $this->getTheme(),
 251             'poche_url' => Tools::getPocheUrl()
 252         ));
 253         if (isset($_GET['install'])) {
 254             if (($_POST['password'] == $_POST['password_repeat'])
 255                 && $_POST['password'] != "" && $_POST['login'] != "") {
 256                 # let's rock, install poche baby !
 257                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 258                 {
 259                     Session::logout();
 260                     Tools::logm('poche is now installed');
 261                     Tools::redirect();
 262                 }
 263             }
 264             else {
 265                 Tools::logm('error during installation');
 266                 Tools::redirect();
 267             }
 268         }
 269         exit();
 270     }
 271
 272     public function getTheme() {
 273         return $this->currentTheme;
 274     }
 275
 276     /**
 277      * Provides theme information by parsing theme.ini file if present in the theme's root directory.
 278      * In all cases, the following data will be returned:
 279      * - name: theme's name, or key if the theme is unnamed,
 280      * - current: boolean informing if the theme is the current user theme.
 281      *
 282      * @param string $theme Theme key (directory name)
 283      * @return array|boolean Theme information, or false if the theme doesn't exist.
 284      */
 285     public function getThemeInfo($theme) {
 286         if (!is_dir(THEME . '/' . $theme)) {
 287             return false;
 288         }
 289
 290         $themeIniFile = THEME . '/' . $theme . '/theme.ini';
 291         $themeInfo = array();
 292
 293         if (is_file($themeIniFile) && is_readable($themeIniFile)) {
 294             $themeInfo = parse_ini_file($themeIniFile);
 295         }
 296
 297         if ($themeInfo === false) {
 298             $themeInfo = array();
 299         }
 300         if (!isset($themeInfo['name'])) {
 301             $themeInfo['name'] = $theme;
 302         }
 303         $themeInfo['current'] = ($theme === $this->getTheme());
 304
 305         return $themeInfo;
 306     }
 307
 308     public function getInstalledThemes() {
 309         $handle = opendir(THEME);
 310         $themes = array();
 311
 312         while (($theme = readdir($handle)) !== false) {
 313             # Themes are stored in a directory, so all directory names are themes
 314             # @todo move theme installation data to database
 315             if (!is_dir(THEME . '/' . $theme) || in_array($theme, array('.', '..'))) {
 316                 continue;
 317             }
 318
 319             $themes[$theme] = $this->getThemeInfo($theme);
 320         }
 321
 322         ksort($themes);
 323
 324         return $themes;
 325     }
 326
 327     public function getLanguage() {
 328         return $this->currentLanguage;
 329     }
 330
 331     public function getInstalledLanguages() {
 332         $handle = opendir(LOCALE);
 333         $languages = array();
 334
 335         while (($language = readdir($handle)) !== false) {
 336             # Languages are stored in a directory, so all directory names are languages
 337             # @todo move language installation data to database
 338             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.', 'tools'))) {
 339                 continue;
 340             }
 341
 342             $current = false;
 343
 344             if ($language === $this->getLanguage()) {
 345                 $current = true;
 346             }
 347
 348             $languages[] = array('name' => (isset($this->language_names[$language]) ? $this->language_names[$language] : $language), 'value' => $language, 'current' => $current);
 349         }
 350
 351         return $languages;
 352     }
 353
 354     public function getDefaultConfig()
 355     {
 356         return array(
 357             'pager' => PAGINATION,
 358             'language' => LANG,
 359             'theme' => DEFAULT_THEME
 360         );
 361     }
 362
 363     /**
 364      * Call action (mark as fav, archive, delete, etc.)
 365      */
 366     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 367     {
 368         switch ($action)
 369         {
 370             case 'add':
 371                 if (!$import) {
 372                     $content = Tools::getPageContent($url);
 373                     $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 374                     $body = $content['rss']['channel']['item']['description'];
 375
 376                     // clean content from prevent xss attack
 377                     $config = HTMLPurifier_Config::createDefault();
 378                     $config->set('Cache.SerializerPath', CACHE);
 379                     $purifier = new HTMLPurifier($config);
 380                     $title = $purifier->purify($title);
 381                     $body = $purifier->purify($body);
 382                 }
 383                 else {
 384                     $title = '';
 385                     $body = '';
 386                 }
 387
 388                 //search for possible duplicate if not in import mode
 389                 $duplicate = NULL;
 390                 if (!$import) {
 391                     $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 392                 }
 393
 394                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 395                     Tools::logm('add link ' . $url->getUrl());
 396                     $sequence = '';
 397                     if (STORAGE == 'postgres') {
 398                         $sequence = 'entries_id_seq';
 399                     }
 400                     $last_id = $this->store->getLastId($sequence);
 401                     if (DOWNLOAD_PICTURES) {
 402                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 403                         Tools::logm('updating content article');
 404                         $this->store->updateContent($last_id, $content, $this->user->getId());
 405                     }
 406
 407                     if ($duplicate != NULL) {
 408                         // 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
 409                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 410                         // 1) - preserve tags and favorite, then drop old entry
 411                         $this->store->reassignTags($duplicate['id'], $last_id);
 412                         if ($duplicate['is_fav']) {
 413                           $this->store->favoriteById($last_id, $this->user->getId());
 414                         }
 415                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 416                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 417                         }
 418                     }
 419
 420                     if (!$import) {
 421                         $this->messages->add('s', _('the link has been added successfully'));
 422                     }
 423                 }
 424                 else {
 425                     if (!$import) {
 426                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 427                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 428                     }
 429                 }
 430
 431                 if (!$import) {
 432                     if ($autoclose == TRUE) {
 433                       Tools::redirect('?view=home');
 434                     } else {
 435                       Tools::redirect('?view=home&closewin=true');
 436                     }
 437                 }
 438                 break;
 439             case 'delete':
 440                 $msg = 'delete link #' . $id;
 441                 if ($this->store->deleteById($id, $this->user->getId())) {
 442                     if (DOWNLOAD_PICTURES) {
 443                         remove_directory(ABS_PATH . $id);
 444                     }
 445                     $this->messages->add('s', _('the link has been deleted successfully'));
 446                 }
 447                 else {
 448                     $this->messages->add('e', _('the link wasn\'t deleted'));
 449                     $msg = 'error : can\'t delete link #' . $id;
 450                 }
 451                 Tools::logm($msg);
 452                 Tools::redirect('?');
 453                 break;
 454             case 'toggle_fav' :
 455                 $this->store->favoriteById($id, $this->user->getId());
 456                 Tools::logm('mark as favorite link #' . $id);
 457                 if (!$import) {
 458                     Tools::redirect();
 459                 }
 460                 break;
 461             case 'toggle_archive' :
 462                 $this->store->archiveById($id, $this->user->getId());
 463                 Tools::logm('archive link #' . $id);
 464                 if (!$import) {
 465                     Tools::redirect();
 466                 }
 467                 break;
 468             case 'archive_all' :
 469                 $this->store->archiveAll($this->user->getId());
 470                 Tools::logm('archive all links');
 471                 if (!$import) {
 472                     Tools::redirect();
 473                 }
 474                 break;
 475             case 'add_tag' :
 476                 if($import){
 477                     $entry_id = $id;
 478                     $tags = explode(',', $tags);
 479                 }
 480                 else{
 481                     $tags = explode(',', $_POST['value']);
 482                     $entry_id = $_POST['entry_id'];
 483                 }
 484                 $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 485                 if (!$entry) {
 486                     $this->messages->add('e', _('Article not found!'));
 487                     Tools::logm('error : article not found');
 488                     Tools::redirect();
 489                 }
 490                 //get all already set tags to preven duplicates
 491                 $already_set_tags = array();
 492                 $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 493                 foreach ($entry_tags as $tag) {
 494                   $already_set_tags[] = $tag['value'];
 495                 }
 496                 foreach($tags as $key => $tag_value) {
 497                     $value = trim($tag_value);
 498                     if ($value && !in_array($value, $already_set_tags)) {
 499                       $tag = $this->store->retrieveTagByValue($value);
 500
 501                       if (is_null($tag)) {
 502                           # we create the tag
 503                           $tag = $this->store->createTag($value);
 504                           $sequence = '';
 505                           if (STORAGE == 'postgres') {
 506                               $sequence = 'tags_id_seq';
 507                           }
 508                           $tag_id = $this->store->getLastId($sequence);
 509                       }
 510                       else {
 511                           $tag_id = $tag['id'];
 512                       }
 513
 514                       # we assign the tag to the article
 515                       $this->store->setTagToEntry($tag_id, $entry_id);
 516                     }
 517                 }
 518                 if(!$import) {
 519                     Tools::redirect();
 520                 }
 521                 break;
 522             case 'remove_tag' :
 523                 $tag_id = $_GET['tag_id'];
 524                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 525                 if (!$entry) {
 526                     $this->messages->add('e', _('Article not found!'));
 527                     Tools::logm('error : article not found');
 528                     Tools::redirect();
 529                 }
 530                 $this->store->removeTagForEntry($id, $tag_id);
 531                 Tools::redirect();
 532                 break;
 533             default:
 534                 break;
 535         }
 536     }
 537
 538     function displayView($view, $id = 0)
 539     {
 540         $tpl_vars = array();
 541
 542         switch ($view)
 543         {
 544             case 'config':
 545                 $dev_infos = $this->getPocheVersion('dev');
 546                 $dev = trim($dev_infos[0]);
 547                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 548                 $prod_infos = $this->getPocheVersion('prod');
 549                 $prod = trim($prod_infos[0]);
 550                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 551                 $compare_dev = version_compare(POCHE, $dev);
 552                 $compare_prod = version_compare(POCHE, $prod);
 553                 $themes = $this->getInstalledThemes();
 554                 $languages = $this->getInstalledLanguages();
 555                 $token = $this->user->getConfigValue('token');
 556                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 557                 $tpl_vars = array(
 558                     'themes' => $themes,
 559                     'languages' => $languages,
 560                     'dev' => $dev,
 561                     'prod' => $prod,
 562                     'check_time_dev' => $check_time_dev,
 563                     'check_time_prod' => $check_time_prod,
 564                     'compare_dev' => $compare_dev,
 565                     'compare_prod' => $compare_prod,
 566                     'token' => $token,
 567                     'user_id' => $this->user->getId(),
 568                     'http_auth' => $http_auth,
 569                 );
 570                 Tools::logm('config view');
 571                 break;
 572             case 'edit-tags':
 573                 # tags
 574                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 575                 if (!$entry) {
 576                     $this->messages->add('e', _('Article not found!'));
 577                     Tools::logm('error : article not found');
 578                     Tools::redirect();
 579                 }
 580                 $tags = $this->store->retrieveTagsByEntry($id);
 581                 $tpl_vars = array(
 582                     'entry_id' => $id,
 583                     'tags' => $tags,
 584                     'entry' => $entry,
 585                 );
 586                 break;
 587             case 'tags':
 588                 $token = $this->user->getConfigValue('token');
 589                 //if term is set - search tags for this term
 590                 $term = Tools::checkVar('term');
 591                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 592                 if (Tools::isAjaxRequest()) {
 593                   $result = array();
 594                   foreach ($tags as $tag) {
 595                     $result[] = $tag['value'];
 596                   }
 597                   echo json_encode($result);
 598                   exit;
 599                 }
 600                 $tpl_vars = array(
 601                     'token' => $token,
 602                     'user_id' => $this->user->getId(),
 603                     'tags' => $tags,
 604                 );
 605                 break;
 606
 607          case 'search':
 608             if (isset($_GET['search'])){
 609                $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 610                $tpl_vars['entries'] = $this->store->search($search,$this->user->getId());
 611                $count = count($tpl_vars['entries']);
 612                $this->pagination->set_total($count);
 613                $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 614                         $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 615                $tpl_vars['page_links'] = $page_links;
 616                $tpl_vars['nb_results'] = $count;
 617                $tpl_vars['search_term'] = $search;
 618             }
 619                                 break;
 620             case 'view':
 621                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 622                 if ($entry != NULL) {
 623                     Tools::logm('view link #' . $id);
 624                     $content = $entry['content'];
 625                     if (function_exists('tidy_parse_string')) {
 626                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 627                         $tidy->cleanRepair();
 628                         $content = $tidy->value;
 629                     }
 630
 631                     # flattr checking
 632                     $flattr = new FlattrItem();
 633                     $flattr->checkItem($entry['url'], $entry['id']);
 634
 635                     # tags
 636                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 637
 638                     $tpl_vars = array(
 639                         'entry' => $entry,
 640                         'content' => $content,
 641                         'flattr' => $flattr,
 642                         'tags' => $tags
 643                     );
 644                 }
 645                 else {
 646                     Tools::logm('error in view call : entry is null');
 647                 }
 648                 break;
 649             default: # home, favorites, archive and tag views
 650                 $tpl_vars = array(
 651                     'entries' => '',
 652                     'page_links' => '',
 653                     'nb_results' => '',
 654                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 655                 );
 656
 657                 //if id is given - we retrive entries by tag: id is tag id
 658                 if ($id) {
 659                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 660                   $tpl_vars['id'] = intval($id);
 661                 }
 662
 663                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 664
 665                 if ($count > 0) {
 666                     $this->pagination->set_total($count);
 667                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 668                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 669                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 670                     $tpl_vars['page_links'] = $page_links;
 671                     $tpl_vars['nb_results'] = $count;
 672                 }
 673                 Tools::logm('display ' . $view . ' view');
 674                 break;
 675         }
 676
 677         return $tpl_vars;
 678     }
 679
 680     /**
 681      * update the password of the current user.
 682      * if MODE_DEMO is TRUE, the password can't be updated.
 683      * @todo add the return value
 684      * @todo set the new password in function header like this updatePassword($newPassword)
 685      * @return boolean
 686      */
 687     public function updatePassword()
 688     {
 689         if (MODE_DEMO) {
 690             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 691             Tools::logm('in demo mode, you can\'t do this');
 692             Tools::redirect('?view=config');
 693         }
 694         else {
 695             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 696                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 697                     $this->messages->add('s', _('your password has been updated'));
 698                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 699                     Session::logout();
 700                     Tools::logm('password updated');
 701                     Tools::redirect();
 702                 }
 703                 else {
 704                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 705                     Tools::redirect('?view=config');
 706                 }
 707             }
 708         }
 709     }
 710
 711     public function updateTheme()
 712     {
 713         # no data
 714         if (empty($_POST['theme'])) {
 715         }
 716
 717         # we are not going to change it to the current theme...
 718         if ($_POST['theme'] == $this->getTheme()) {
 719             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 720             Tools::redirect('?view=config');
 721         }
 722
 723         $themes = $this->getInstalledThemes();
 724         $actualTheme = false;
 725
 726         foreach (array_keys($themes) as $theme) {
 727             if ($theme == $_POST['theme']) {
 728                 $actualTheme = true;
 729                 break;
 730             }
 731         }
 732
 733         if (! $actualTheme) {
 734             $this->messages->add('e', _('that theme does not seem to be installed'));
 735             Tools::redirect('?view=config');
 736         }
 737
 738         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 739         $this->messages->add('s', _('you have changed your theme preferences'));
 740
 741         $currentConfig = $_SESSION['poche_user']->config;
 742         $currentConfig['theme'] = $_POST['theme'];
 743
 744         $_SESSION['poche_user']->setConfig($currentConfig);
 745
 746         $this->emptyCache();
 747
 748         Tools::redirect('?view=config');
 749     }
 750
 751     public function updateLanguage()
 752     {
 753         # no data
 754         if (empty($_POST['language'])) {
 755         }
 756
 757         # we are not going to change it to the current language...
 758         if ($_POST['language'] == $this->getLanguage()) {
 759             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 760             Tools::redirect('?view=config');
 761         }
 762
 763         $languages = $this->getInstalledLanguages();
 764         $actualLanguage = false;
 765
 766         foreach ($languages as $language) {
 767             if ($language['value'] == $_POST['language']) {
 768                 $actualLanguage = true;
 769                 break;
 770             }
 771         }
 772
 773         if (! $actualLanguage) {
 774             $this->messages->add('e', _('that language does not seem to be installed'));
 775             Tools::redirect('?view=config');
 776         }
 777
 778         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 779         $this->messages->add('s', _('you have changed your language preferences'));
 780
 781         $currentConfig = $_SESSION['poche_user']->config;
 782         $currentConfig['language'] = $_POST['language'];
 783
 784         $_SESSION['poche_user']->setConfig($currentConfig);
 785
 786         $this->emptyCache();
 787
 788         Tools::redirect('?view=config');
 789     }
 790     /**
 791      * get credentials from differents sources
 792      * it redirects the user to the $referer link
 793      * @return array
 794      */
 795     private function credentials() {
 796         if(isset($_SERVER['PHP_AUTH_USER'])) {
 797             return array($_SERVER['PHP_AUTH_USER'],'php_auth',true);
 798         }
 799         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 800             return array($_POST['login'],$_POST['password'],false);
 801         }
 802         if(isset($_SERVER['REMOTE_USER'])) {
 803             return array($_SERVER['REMOTE_USER'],'http_auth',true);
 804         }
 805
 806         return array(false,false,false);
 807     }
 808
 809     /**
 810      * checks if login & password are correct and save the user in session.
 811      * it redirects the user to the $referer link
 812      * @param  string $referer the url to redirect after login
 813      * @todo add the return value
 814      * @return boolean
 815      */
 816     public function login($referer)
 817     {
 818         list($login,$password,$isauthenticated)=$this->credentials();
 819         if($login === false || $password === false) {
 820             $this->messages->add('e', _('login failed: you have to fill all fields'));
 821             Tools::logm('login failed');
 822             Tools::redirect();
 823         }
 824         if (!empty($login) && !empty($password)) {
 825             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 826             if ($user != array()) {
 827                 # Save login into Session
 828                 $longlastingsession = isset($_POST['longlastingsession']);
 829                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 830                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 831                 $this->messages->add('s', _('welcome to your wallabag'));
 832                 Tools::logm('login successful');
 833                 Tools::redirect($referer);
 834             }
 835             $this->messages->add('e', _('login failed: bad login or password'));
 836             Tools::logm('login failed');
 837             Tools::redirect();
 838         }
 839     }
 840
 841     /**
 842      * log out the poche user. It cleans the session.
 843      * @todo add the return value
 844      * @return boolean
 845      */
 846     public function logout()
 847     {
 848         $this->user = array();
 849         Session::logout();
 850         Tools::logm('logout');
 851         Tools::redirect();
 852     }
 853
 854     /**
 855      * import from Instapaper. poche needs a ./instapaper-export.html file
 856      * @todo add the return value
 857      * @param string $targetFile the file used for importing
 858      * @return boolean
 859      */
 860     private function importFromInstapaper($targetFile)
 861     {
 862         # TODO gestion des articles favs
 863         $html = new simple_html_dom();
 864         $html->load_file($targetFile);
 865         Tools::logm('starting import from instapaper');
 866
 867         $read = 0;
 868         $errors = array();
 869         foreach($html->find('ol') as $ul)
 870         {
 871             foreach($ul->find('li') as $li)
 872             {
 873                 $a = $li->find('a');
 874                 $url = new Url(base64_encode($a[0]->href));
 875                 $this->action('add', $url, 0, TRUE);
 876                 if ($read == '1') {
 877                     $sequence = '';
 878                     if (STORAGE == 'postgres') {
 879                         $sequence = 'entries_id_seq';
 880                     }
 881                     $last_id = $this->store->getLastId($sequence);
 882                     $this->action('toggle_archive', $url, $last_id, TRUE);
 883                 }
 884             }
 885
 886             # the second <ol> is for read links
 887             $read = 1;
 888         }
 889
 890         $unlink = unlink($targetFile);
 891         $this->messages->add('s', _('import from instapaper completed. You have to execute the cron to fetch content.'));
 892         Tools::logm('import from instapaper completed');
 893         Tools::redirect();
 894     }
 895
 896     /**
 897      * import from Pocket. poche needs a ./ril_export.html file
 898      * @todo add the return value
 899      * @param string $targetFile the file used for importing
 900      * @return boolean
 901      */
 902     private function importFromPocket($targetFile)
 903     {
 904         # TODO gestion des articles favs
 905         $html = new simple_html_dom();
 906         $html->load_file($targetFile);
 907         Tools::logm('starting import from pocket');
 908
 909         $read = 0;
 910         $errors = array();
 911         foreach($html->find('ul') as $ul)
 912         {
 913             foreach($ul->find('li') as $li)
 914             {
 915                 $a = $li->find('a');
 916                 $url = new Url(base64_encode($a[0]->href));
 917                 $this->action('add', $url, 0, TRUE);
 918                 $sequence = '';
 919                 if (STORAGE == 'postgres') {
 920                     $sequence = 'entries_id_seq';
 921                 }
 922                 $last_id = $this->store->getLastId($sequence);
 923                 if ($read == '1') {
 924                     $this->action('toggle_archive', $url, $last_id, TRUE);
 925                 }
 926                 $tags = $a[0]->tags;
 927                 if(!empty($tags)) {
 928                     $this->action('add_tag',$url,$last_id,true,false,$tags);
 929                 }
 930             }
 931
 932             # the second <ul> is for read links
 933             $read = 1;
 934         }
 935
 936         $unlink = unlink($targetFile);
 937         $this->messages->add('s', _('import from pocket completed. You have to execute the cron to fetch content.'));
 938         Tools::logm('import from pocket completed');
 939         Tools::redirect();
 940     }
 941
 942     /**
 943      * import from Readability. poche needs a ./readability file
 944      * @todo add the return value
 945      * @param string $targetFile the file used for importing
 946      * @return boolean
 947      */
 948     private function importFromReadability($targetFile)
 949     {
 950         # TODO gestion des articles lus / favs
 951         $str_data = file_get_contents($targetFile);
 952         $data = json_decode($str_data,true);
 953         Tools::logm('starting import from Readability');
 954         $count = 0;
 955         foreach ($data as $key => $value) {
 956             $url = NULL;
 957             $favorite = FALSE;
 958             $archive = FALSE;
 959             foreach ($value as $item) {
 960                 foreach ($item as $attr => $value) {
 961                     if ($attr == 'article__url') {
 962                         $url = new Url(base64_encode($value));
 963                     }
 964                     $sequence = '';
 965                     if (STORAGE == 'postgres') {
 966                         $sequence = 'entries_id_seq';
 967                     }
 968                     if ($value == 'true') {
 969                         if ($attr == 'favorite') {
 970                             $favorite = TRUE;
 971                         }
 972                         if ($attr == 'archive') {
 973                             $archive = TRUE;
 974                         }
 975                     }
 976                 }
 977
 978                 # we can add the url
 979                 if (!is_null($url) && $url->isCorrect()) {
 980                     $this->action('add', $url, 0, TRUE);
 981                     $count++;
 982                     if ($favorite) {
 983                         $last_id = $this->store->getLastId($sequence);
 984                         $this->action('toggle_fav', $url, $last_id, TRUE);
 985                     }
 986                     if ($archive) {
 987                         $last_id = $this->store->getLastId($sequence);
 988                         $this->action('toggle_archive', $url, $last_id, TRUE);
 989                     }
 990                 }
 991             }
 992         }
 993
 994         unlink($targetFile);
 995         $this->messages->add('s', _('import from Readability completed. You have to execute the cron to fetch content.'));
 996         Tools::logm('import from Readability completed');
 997         Tools::redirect();
 998     }
 999
1000     /**
1001      * import from Poche exported file
1002      * @param string $targetFile the file used for importing
1003      * @return boolean
1004      */
1005     private function importFromPoche($targetFile)
1006     {
1007         $str_data = file_get_contents($targetFile);
1008         $data = json_decode($str_data,true);
1009         Tools::logm('starting import from Poche');
1010
1011
1012         $sequence = '';
1013         if (STORAGE == 'postgres') {
1014             $sequence = 'entries_id_seq';
1015         }
1016
1017         $count = 0;
1018         foreach ($data as $value) {
1019
1020             $url = new Url(base64_encode($value['url']));
1021             $favorite = ($value['is_fav'] == -1);
1022             $archive = ($value['is_read'] == -1);
1023
1024             # we can add the url
1025             if (!is_null($url) && $url->isCorrect()) {
1026
1027                 $this->action('add', $url, 0, TRUE);
1028
1029                 $count++;
1030                 if ($favorite) {
1031                     $last_id = $this->store->getLastId($sequence);
1032                     $this->action('toggle_fav', $url, $last_id, TRUE);
1033                 }
1034                 if ($archive) {
1035                     $last_id = $this->store->getLastId($sequence);
1036                     $this->action('toggle_archive', $url, $last_id, TRUE);
1037                 }
1038             }
1039
1040         }
1041
1042         unlink($targetFile);
1043         $this->messages->add('s', _('import from Poche completed. You have to execute the cron to fetch content.'));
1044         Tools::logm('import from Poche completed');
1045         Tools::redirect();
1046     }
1047
1048     /**
1049      * import datas into your poche
1050      * @param  string $from name of the service to import : pocket, instapaper or readability
1051      * @todo add the return value
1052      * @return boolean
1053      */
1054     public function import($from)
1055     {
1056         $providers = array(
1057             'pocket' => 'importFromPocket',
1058             'readability' => 'importFromReadability',
1059             'instapaper' => 'importFromInstapaper',
1060             'poche' => 'importFromPoche',
1061         );
1062
1063         if (! isset($providers[$from])) {
1064             $this->messages->add('e', _('Unknown import provider.'));
1065             Tools::redirect();
1066         }
1067
1068         $targetFile = CACHE . '/' . constant(strtoupper($from) . '_FILE');
1069
1070         if (! file_exists($targetFile)) {
1071             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
1072             Tools::redirect();
1073         }
1074
1075         $this->$providers[$from]($targetFile);
1076     }
1077
1078     public function uploadFile() {
1079         if(isset($_FILES['file']))
1080         {
1081             $dir = CACHE . '/';
1082             $file = basename($_FILES['file']['name']);
1083             if(move_uploaded_file($_FILES['file']['tmp_name'], $dir . $file)) {
1084                 $this->messages->add('s', _('File uploaded. You can now execute import.'));
1085             }
1086             else {
1087                 $this->messages->add('e', _('Error while importing file. Do you have access to upload it?'));
1088             }
1089         }
1090
1091         Tools::redirect('?view=config');
1092     }
1093
1094     /**
1095      * export poche entries in json
1096      * @return json all poche entries
1097      */
1098     public function export()
1099     {
1100                 $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
1101                 header('Content-Disposition: attachment; filename='.$filename);
1102
1103         $entries = $this->store->retrieveAll($this->user->getId());
1104         echo $this->tpl->render('export.twig', array(
1105             'export' => Tools::renderJson($entries),
1106         ));
1107         Tools::logm('export view');
1108     }
1109
1110     /**
1111      * Checks online the latest version of poche and cache it
1112      * @param  string $which 'prod' or 'dev'
1113      * @return string        latest $which version
1114      */
1115     private function getPocheVersion($which = 'prod')
1116     {
1117         $cache_file = CACHE . '/' . $which;
1118         $check_time = time();
1119
1120         # checks if the cached version file exists
1121         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
1122            $version = file_get_contents($cache_file);
1123            $check_time = filemtime($cache_file);
1124         } else {
1125            $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
1126            file_put_contents($cache_file, $version, LOCK_EX);
1127         }
1128         return array($version, $check_time);
1129     }
1130
1131     public function generateToken()
1132     {
1133         if (ini_get('open_basedir') === '') {
1134                         if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1135                         echo 'This is a server using Windows!';
1136                         // alternative to /dev/urandom for Windows
1137                         $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
1138                         } else {
1139                         $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
1140                         }
1141         }
1142         else {
1143             $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
1144         }
1145
1146         $token = str_replace('+', '', $token);
1147         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
1148         $currentConfig = $_SESSION['poche_user']->config;
1149         $currentConfig['token'] = $token;
1150         $_SESSION['poche_user']->setConfig($currentConfig);
1151         Tools::redirect();
1152     }
1153
1154     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
1155     {
1156         $allowed_types = array('home', 'fav', 'archive', 'tag');
1157         $config = $this->store->getConfigUser($user_id);
1158
1159         if ($config == null) {
1160             die(_('User with this id (' . $user_id . ') does not exist.'));
1161         }
1162
1163         if (!in_array($type, $allowed_types) ||
1164             $token != $config['token']) {
1165             die(_('Uh, there is a problem while generating feeds.'));
1166         }
1167         // Check the token
1168
1169         $feed = new FeedWriter(RSS2);
1170         $feed->setTitle('wallabag — ' . $type . ' feed');
1171         $feed->setLink(Tools::getPocheUrl());
1172         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
1173         $feed->setChannelElement('generator', 'wallabag');
1174         $feed->setDescription('wallabag ' . $type . ' elements');
1175
1176         if ($type == 'tag') {
1177             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
1178         }
1179         else {
1180             $entries = $this->store->getEntriesByView($type, $user_id);
1181         }
1182
1183         if (count($entries) > 0) {
1184             foreach ($entries as $entry) {
1185                 $newItem = $feed->createNewItem();
1186                 $newItem->setTitle($entry['title']);
1187                 $newItem->setLink($entry['url']);
1188                 $newItem->setDate(time());
1189                 $newItem->setDescription($entry['content']);
1190                 $feed->addItem($newItem);
1191             }
1192         }
1193
1194         $feed->genarateFeed();
1195         exit;
1196     }
1197
1198     public function emptyCache() {
1199         $files = new RecursiveIteratorIterator(
1200             new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
1201             RecursiveIteratorIterator::CHILD_FIRST
1202         );
1203
1204         foreach ($files as $fileinfo) {
1205             $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
1206             $todo($fileinfo->getRealPath());
1207         }
1208
1209         Tools::logm('empty cache');
1210         $this->messages->add('s', _('Cache deleted.'));
1211         Tools::redirect();
1212     }
1213 }