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                 $content = Tools::getPageContent($url);
 372                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 373                 $body = $content['rss']['channel']['item']['description'];
 374
 375                 // clean content from prevent xss attack
 376                 $config = HTMLPurifier_Config::createDefault();
 377                 $config->set('Cache.SerializerPath', CACHE);
 378                 $purifier = new HTMLPurifier($config);
 379                 $title = $purifier->purify($title);
 380                 $body = $purifier->purify($body);
 381
 382                 //search for possible duplicate
 383                 $duplicate = NULL;
 384                 $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 385
 386                 $last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
 387                 if ( $last_id ) {
 388                     Tools::logm('add link ' . $url->getUrl());
 389                     if (DOWNLOAD_PICTURES) {
 390                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 391                         Tools::logm('updating content article');
 392                         $this->store->updateContent($last_id, $content, $this->user->getId());
 393                     }
 394
 395                     if ($duplicate != NULL) {
 396                         // 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
 397                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 398                         // 1) - preserve tags and favorite, then drop old entry
 399                         $this->store->reassignTags($duplicate['id'], $last_id);
 400                         if ($duplicate['is_fav']) {
 401                           $this->store->favoriteById($last_id, $this->user->getId());
 402                         }
 403                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 404                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 405                         }
 406                     }
 407
 408                     $this->messages->add('s', _('the link has been added successfully'));
 409                 }
 410                 else {
 411                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 412                     Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 413                 }
 414
 415                 if ($autoclose == TRUE) {
 416                   Tools::redirect('?view=home');
 417                 } else {
 418                   Tools::redirect('?view=home&closewin=true');
 419                 }
 420                 break;
 421             case 'delete':
 422                 $msg = 'delete link #' . $id;
 423                 if ($this->store->deleteById($id, $this->user->getId())) {
 424                     if (DOWNLOAD_PICTURES) {
 425                         remove_directory(ABS_PATH . $id);
 426                     }
 427                     $this->messages->add('s', _('the link has been deleted successfully'));
 428                 }
 429                 else {
 430                     $this->messages->add('e', _('the link wasn\'t deleted'));
 431                     $msg = 'error : can\'t delete link #' . $id;
 432                 }
 433                 Tools::logm($msg);
 434                 Tools::redirect('?');
 435                 break;
 436             case 'toggle_fav' :
 437                 $this->store->favoriteById($id, $this->user->getId());
 438                 Tools::logm('mark as favorite link #' . $id);
 439                 Tools::redirect();
 440                 break;
 441             case 'toggle_archive' :
 442                 $this->store->archiveById($id, $this->user->getId());
 443                 Tools::logm('archive link #' . $id);
 444                 Tools::redirect();
 445                 break;
 446             case 'archive_all' :
 447                 $this->store->archiveAll($this->user->getId());
 448                 Tools::logm('archive all links');
 449                 Tools::redirect();
 450                 break;
 451             case 'add_tag' :
 452                 $tags = explode(',', $_POST['value']);
 453                 $entry_id = $_POST['entry_id'];
 454                 $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 455                 if (!$entry) {
 456                     $this->messages->add('e', _('Article not found!'));
 457                     Tools::logm('error : article not found');
 458                     Tools::redirect();
 459                 }
 460                 //get all already set tags to preven duplicates
 461                 $already_set_tags = array();
 462                 $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 463                 foreach ($entry_tags as $tag) {
 464                   $already_set_tags[] = $tag['value'];
 465                 }
 466                 foreach($tags as $key => $tag_value) {
 467                     $value = trim($tag_value);
 468                     if ($value && !in_array($value, $already_set_tags)) {
 469                       $tag = $this->store->retrieveTagByValue($value);
 470
 471                       if (is_null($tag)) {
 472                           # we create the tag
 473                           $tag = $this->store->createTag($value);
 474                           $sequence = '';
 475                           if (STORAGE == 'postgres') {
 476                               $sequence = 'tags_id_seq';
 477                           }
 478                           $tag_id = $this->store->getLastId($sequence);
 479                       }
 480                       else {
 481                           $tag_id = $tag['id'];
 482                       }
 483
 484                       # we assign the tag to the article
 485                       $this->store->setTagToEntry($tag_id, $entry_id);
 486                     }
 487                 }
 488                 Tools::redirect();
 489                 break;
 490             case 'remove_tag' :
 491                 $tag_id = $_GET['tag_id'];
 492                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 493                 if (!$entry) {
 494                     $this->messages->add('e', _('Article not found!'));
 495                     Tools::logm('error : article not found');
 496                     Tools::redirect();
 497                 }
 498                 $this->store->removeTagForEntry($id, $tag_id);
 499                 Tools::redirect();
 500                 break;
 501             default:
 502                 break;
 503         }
 504     }
 505
 506     function displayView($view, $id = 0)
 507     {
 508         $tpl_vars = array();
 509
 510         switch ($view)
 511         {
 512             case 'config':
 513                 $dev_infos = $this->getPocheVersion('dev');
 514                 $dev = trim($dev_infos[0]);
 515                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 516                 $prod_infos = $this->getPocheVersion('prod');
 517                 $prod = trim($prod_infos[0]);
 518                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 519                 $compare_dev = version_compare(POCHE, $dev);
 520                 $compare_prod = version_compare(POCHE, $prod);
 521                 $themes = $this->getInstalledThemes();
 522                 $languages = $this->getInstalledLanguages();
 523                 $token = $this->user->getConfigValue('token');
 524                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 525                 $tpl_vars = array(
 526                     'themes' => $themes,
 527                     'languages' => $languages,
 528                     'dev' => $dev,
 529                     'prod' => $prod,
 530                     'check_time_dev' => $check_time_dev,
 531                     'check_time_prod' => $check_time_prod,
 532                     'compare_dev' => $compare_dev,
 533                     'compare_prod' => $compare_prod,
 534                     'token' => $token,
 535                     'user_id' => $this->user->getId(),
 536                     'http_auth' => $http_auth,
 537                 );
 538                 Tools::logm('config view');
 539                 break;
 540             case 'edit-tags':
 541                 # tags
 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                 $tags = $this->store->retrieveTagsByEntry($id);
 549                 $tpl_vars = array(
 550                     'entry_id' => $id,
 551                     'tags' => $tags,
 552                     'entry' => $entry,
 553                 );
 554                 break;
 555             case 'tags':
 556                 $token = $this->user->getConfigValue('token');
 557                 //if term is set - search tags for this term
 558                 $term = Tools::checkVar('term');
 559                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 560                 if (Tools::isAjaxRequest()) {
 561                   $result = array();
 562                   foreach ($tags as $tag) {
 563                     $result[] = $tag['value'];
 564                   }
 565                   echo json_encode($result);
 566                   exit;
 567                 }
 568                 $tpl_vars = array(
 569                     'token' => $token,
 570                     'user_id' => $this->user->getId(),
 571                     'tags' => $tags,
 572                 );
 573                 break;
 574             case 'search':
 575                 if (isset($_GET['search'])) {
 576                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 577                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 578                    $count = count($tpl_vars['entries']);
 579                    $this->pagination->set_total($count);
 580                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 581                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 582                    $tpl_vars['page_links'] = $page_links;
 583                    $tpl_vars['nb_results'] = $count;
 584                    $tpl_vars['search_term'] = $search;
 585                 }
 586                 break;
 587             case 'view':
 588                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 589                 if ($entry != NULL) {
 590                     Tools::logm('view link #' . $id);
 591                     $content = $entry['content'];
 592                     if (function_exists('tidy_parse_string')) {
 593                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 594                         $tidy->cleanRepair();
 595                         $content = $tidy->value;
 596                     }
 597
 598                     # flattr checking
 599                     $flattr = new FlattrItem();
 600                     $flattr->checkItem($entry['url'], $entry['id']);
 601
 602                     # tags
 603                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 604
 605                     $tpl_vars = array(
 606                         'entry' => $entry,
 607                         'content' => $content,
 608                         'flattr' => $flattr,
 609                         'tags' => $tags
 610                     );
 611                 }
 612                 else {
 613                     Tools::logm('error in view call : entry is null');
 614                 }
 615                 break;
 616             default: # home, favorites, archive and tag views
 617                 $tpl_vars = array(
 618                     'entries' => '',
 619                     'page_links' => '',
 620                     'nb_results' => '',
 621                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 622                 );
 623
 624                 //if id is given - we retrive entries by tag: id is tag id
 625                 if ($id) {
 626                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 627                   $tpl_vars['id'] = intval($id);
 628                 }
 629
 630                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 631
 632                 if ($count > 0) {
 633                     $this->pagination->set_total($count);
 634                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 635                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 636                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 637                     $tpl_vars['page_links'] = $page_links;
 638                     $tpl_vars['nb_results'] = $count;
 639                 }
 640                 Tools::logm('display ' . $view . ' view');
 641                 break;
 642         }
 643
 644         return $tpl_vars;
 645     }
 646
 647     /**
 648      * update the password of the current user.
 649      * if MODE_DEMO is TRUE, the password can't be updated.
 650      * @todo add the return value
 651      * @todo set the new password in function header like this updatePassword($newPassword)
 652      * @return boolean
 653      */
 654     public function updatePassword()
 655     {
 656         if (MODE_DEMO) {
 657             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 658             Tools::logm('in demo mode, you can\'t do this');
 659             Tools::redirect('?view=config');
 660         }
 661         else {
 662             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 663                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 664                     $this->messages->add('s', _('your password has been updated'));
 665                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 666                     Session::logout();
 667                     Tools::logm('password updated');
 668                     Tools::redirect();
 669                 }
 670                 else {
 671                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 672                     Tools::redirect('?view=config');
 673                 }
 674             }
 675         }
 676     }
 677
 678     public function updateTheme()
 679     {
 680         # no data
 681         if (empty($_POST['theme'])) {
 682         }
 683
 684         # we are not going to change it to the current theme...
 685         if ($_POST['theme'] == $this->getTheme()) {
 686             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 687             Tools::redirect('?view=config');
 688         }
 689
 690         $themes = $this->getInstalledThemes();
 691         $actualTheme = false;
 692
 693         foreach (array_keys($themes) as $theme) {
 694             if ($theme == $_POST['theme']) {
 695                 $actualTheme = true;
 696                 break;
 697             }
 698         }
 699
 700         if (! $actualTheme) {
 701             $this->messages->add('e', _('that theme does not seem to be installed'));
 702             Tools::redirect('?view=config');
 703         }
 704
 705         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 706         $this->messages->add('s', _('you have changed your theme preferences'));
 707
 708         $currentConfig = $_SESSION['poche_user']->config;
 709         $currentConfig['theme'] = $_POST['theme'];
 710
 711         $_SESSION['poche_user']->setConfig($currentConfig);
 712
 713         $this->emptyCache();
 714
 715         Tools::redirect('?view=config');
 716     }
 717
 718     public function updateLanguage()
 719     {
 720         # no data
 721         if (empty($_POST['language'])) {
 722         }
 723
 724         # we are not going to change it to the current language...
 725         if ($_POST['language'] == $this->getLanguage()) {
 726             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 727             Tools::redirect('?view=config');
 728         }
 729
 730         $languages = $this->getInstalledLanguages();
 731         $actualLanguage = false;
 732
 733         foreach ($languages as $language) {
 734             if ($language['value'] == $_POST['language']) {
 735                 $actualLanguage = true;
 736                 break;
 737             }
 738         }
 739
 740         if (! $actualLanguage) {
 741             $this->messages->add('e', _('that language does not seem to be installed'));
 742             Tools::redirect('?view=config');
 743         }
 744
 745         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 746         $this->messages->add('s', _('you have changed your language preferences'));
 747
 748         $currentConfig = $_SESSION['poche_user']->config;
 749         $currentConfig['language'] = $_POST['language'];
 750
 751         $_SESSION['poche_user']->setConfig($currentConfig);
 752
 753         $this->emptyCache();
 754
 755         Tools::redirect('?view=config');
 756     }
 757     /**
 758      * get credentials from differents sources
 759      * it redirects the user to the $referer link
 760      * @return array
 761      */
 762     private function credentials() {
 763         if(isset($_SERVER['PHP_AUTH_USER'])) {
 764             return array($_SERVER['PHP_AUTH_USER'],'php_auth',true);
 765         }
 766         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 767             return array($_POST['login'],$_POST['password'],false);
 768         }
 769         if(isset($_SERVER['REMOTE_USER'])) {
 770             return array($_SERVER['REMOTE_USER'],'http_auth',true);
 771         }
 772
 773         return array(false,false,false);
 774     }
 775
 776     /**
 777      * checks if login & password are correct and save the user in session.
 778      * it redirects the user to the $referer link
 779      * @param  string $referer the url to redirect after login
 780      * @todo add the return value
 781      * @return boolean
 782      */
 783     public function login($referer)
 784     {
 785         list($login,$password,$isauthenticated)=$this->credentials();
 786         if($login === false || $password === false) {
 787             $this->messages->add('e', _('login failed: you have to fill all fields'));
 788             Tools::logm('login failed');
 789             Tools::redirect();
 790         }
 791         if (!empty($login) && !empty($password)) {
 792             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 793             if ($user != array()) {
 794                 # Save login into Session
 795                 $longlastingsession = isset($_POST['longlastingsession']);
 796                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 797                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 798                 $this->messages->add('s', _('welcome to your wallabag'));
 799                 Tools::logm('login successful');
 800                 Tools::redirect($referer);
 801             }
 802             $this->messages->add('e', _('login failed: bad login or password'));
 803             Tools::logm('login failed');
 804             Tools::redirect();
 805         }
 806     }
 807
 808     /**
 809      * log out the poche user. It cleans the session.
 810      * @todo add the return value
 811      * @return boolean
 812      */
 813     public function logout()
 814     {
 815         $this->user = array();
 816         Session::logout();
 817         Tools::logm('logout');
 818         Tools::redirect();
 819     }
 820
 821     /**
 822      * import datas into your poche
 823      * @return boolean
 824      */
 825     public function import() {
 826
 827       if (!defined('IMPORT_LIMIT')) {
 828         define('IMPORT_LIMIT', 5);
 829       }
 830       if (!defined('IMPORT_DELAY')) {
 831         define('IMPORT_DELAY', 5);
 832       }
 833
 834       if ( isset($_FILES['file']) ) {
 835         // assume, that file is in json format
 836         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 837         $data = json_decode($str_data, true);
 838
 839         if ( $data === null ) {
 840           //not json - assume html
 841           $html = new simple_html_dom();
 842           $html->load_file($_FILES['file']['tmp_name']);
 843           $data = array();
 844           $read = 0;
 845           foreach (array('ol','ul') as $list) {
 846             foreach ($html->find($list) as $ul) {
 847               foreach ($ul->find('li') as $li) {
 848                 $tmpEntry = array();
 849                   $a = $li->find('a');
 850                   $tmpEntry['url'] = $a[0]->href;
 851                   $tmpEntry['tags'] = $a[0]->tags;
 852                   $tmpEntry['is_read'] = $read;
 853                   if ($tmpEntry['url']) {
 854                     $data[] = $tmpEntry;
 855                   }
 856               }
 857               # the second <ol/ul> is for read links
 858               $read = ((sizeof($data) && $read)?0:1);
 859             }
 860           }
 861         }
 862
 863         //for readability structure
 864         foreach ($data as $record) {
 865           if (is_array($record)) {
 866             $data[] = $record;
 867             foreach ($record as $record2) {
 868               if (is_array($record2)) {
 869                 $data[] = $record2;
 870               }
 871             }
 872           }
 873         }
 874
 875         $urlsInserted = array(); //urls of articles inserted
 876         foreach ($data as $record) {
 877           $url = trim( isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : '') );
 878           if ( $url and !in_array($url, $urlsInserted) ) {
 879             $title = (isset($record['title']) ? $record['title'] :  _('Untitled - Import - ').'</a> <a href="./?import">'._('click to finish import').'</a><a>');
 880             $body = (isset($record['content']) ? $record['content'] : '');
 881             $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive'])?intval($record['archive']):0));
 882             $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite'])?intval($record['favorite']):0) );
 883             //insert new record
 884             $id = $this->store->add($url, $title, $body, $this->user->getId(), $isFavorite, $isRead);
 885             if ( $id ) {
 886               $urlsInserted[] = $url; //add
 887
 888               if ( isset($record['tags']) && trim($record['tags']) ) {
 889                 //@TODO: set tags
 890
 891               }
 892             }
 893           }
 894         }
 895
 896         $i = sizeof($urlsInserted);
 897         if ( $i > 0 ) {
 898           $this->messages->add('s', _('Articles inserted: ').$i._('. Please note, that some may be marked as "read".'));
 899         }
 900       }
 901       //file parsing finished here
 902
 903       //now download article contents if any
 904
 905       //check if we need to download any content
 906       $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 907       if ( $recordsDownloadRequired == 0 ) {
 908         //nothing to download
 909         $this->messages->add('s', _('Import finished.'));
 910         Tools::redirect();
 911       }
 912       else {
 913         //if just inserted - don't download anything, download will start in next reload
 914         if ( !isset($_FILES['file']) ) {
 915           //download next batch
 916           $items = $this->store->retrieveUnfetchedEntries($this->user->getId(), IMPORT_LIMIT);
 917
 918           $config = HTMLPurifier_Config::createDefault();
 919           $config->set('Cache.SerializerPath', CACHE);
 920           $purifier = new HTMLPurifier($config);
 921
 922           foreach ($items as $item) {
 923             $url = new Url(base64_encode($item['url']));
 924             $content = Tools::getPageContent($url);
 925
 926             $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 927             $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 928
 929             //clean content to prevent xss attack
 930             $title = $purifier->purify($title);
 931             $body = $purifier->purify($body);
 932
 933             $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 934           }
 935
 936         }
 937       }
 938
 939       return array('includeImport'=>true, 'import'=>array('recordsDownloadRequired'=>$recordsDownloadRequired, 'recordsUnderDownload'=> IMPORT_LIMIT, 'delay'=> IMPORT_DELAY * 1000) );
 940     }
 941
 942     /**
 943      * export poche entries in json
 944      * @return json all poche entries
 945      */
 946     public function export() {
 947       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 948       header('Content-Disposition: attachment; filename='.$filename);
 949
 950       $entries = $this->store->retrieveAll($this->user->getId());
 951       echo $this->tpl->render('export.twig', array(
 952           'export' => Tools::renderJson($entries),
 953       ));
 954       Tools::logm('export view');
 955     }
 956
 957     /**
 958      * Checks online the latest version of poche and cache it
 959      * @param  string $which 'prod' or 'dev'
 960      * @return string        latest $which version
 961      */
 962     private function getPocheVersion($which = 'prod') {
 963       $cache_file = CACHE . '/' . $which;
 964       $check_time = time();
 965
 966       # checks if the cached version file exists
 967       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 968          $version = file_get_contents($cache_file);
 969          $check_time = filemtime($cache_file);
 970       } else {
 971          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 972          file_put_contents($cache_file, $version, LOCK_EX);
 973       }
 974       return array($version, $check_time);
 975     }
 976
 977     public function generateToken()
 978     {
 979       if (ini_get('open_basedir') === '') {
 980         if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
 981           echo 'This is a server using Windows!';
 982           // alternative to /dev/urandom for Windows
 983           $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
 984         } else {
 985           $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
 986         }
 987       }
 988       else {
 989         $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
 990       }
 991
 992       $token = str_replace('+', '', $token);
 993       $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 994       $currentConfig = $_SESSION['poche_user']->config;
 995       $currentConfig['token'] = $token;
 996       $_SESSION['poche_user']->setConfig($currentConfig);
 997       Tools::redirect();
 998     }
 999
1000     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
1001     {
1002         $allowed_types = array('home', 'fav', 'archive', 'tag');
1003         $config = $this->store->getConfigUser($user_id);
1004
1005         if ($config == null) {
1006             die(_('User with this id (' . $user_id . ') does not exist.'));
1007         }
1008
1009         if (!in_array($type, $allowed_types) ||
1010             $token != $config['token']) {
1011             die(_('Uh, there is a problem while generating feeds.'));
1012         }
1013         // Check the token
1014
1015         $feed = new FeedWriter(RSS2);
1016         $feed->setTitle('wallabag — ' . $type . ' feed');
1017         $feed->setLink(Tools::getPocheUrl());
1018         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
1019         $feed->setChannelElement('generator', 'wallabag');
1020         $feed->setDescription('wallabag ' . $type . ' elements');
1021
1022         if ($type == 'tag') {
1023             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
1024         }
1025         else {
1026             $entries = $this->store->getEntriesByView($type, $user_id);
1027         }
1028
1029         if (count($entries) > 0) {
1030             foreach ($entries as $entry) {
1031                 $newItem = $feed->createNewItem();
1032                 $newItem->setTitle($entry['title']);
1033                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1034                 $newItem->setLink($entry['url']);
1035                 $newItem->setDate(time());
1036                 $newItem->setDescription($entry['content']);
1037                 $feed->addItem($newItem);
1038             }
1039         }
1040
1041         $feed->genarateFeed();
1042         exit;
1043     }
1044
1045     public function emptyCache() {
1046         $files = new RecursiveIteratorIterator(
1047             new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
1048             RecursiveIteratorIterator::CHILD_FIRST
1049         );
1050
1051         foreach ($files as $fileinfo) {
1052             $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
1053             $todo($fileinfo->getRealPath());
1054         }
1055
1056         Tools::logm('empty cache');
1057         $this->messages->add('s', _('Cache deleted.'));
1058         Tools::redirect();
1059     }
1060 }