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 $language_names = array(
  27       'cs_CZ.utf8' => 'čeština',
  28       'de_DE.utf8' => 'German',
  29       'en_EN.utf8' => 'English',
  30       'es_ES.utf8' => 'Español',
  31       'fa_IR.utf8' => 'فارسی',
  32       'fr_FR.utf8' => 'Français',
  33       'it_IT.utf8' => 'Italiano',
  34       'pl_PL.utf8' => 'Polski',
  35       'ru_RU.utf8' => 'Pусский',
  36       'sl_SI.utf8' => 'Slovenščina',
  37       'uk_UA.utf8' => 'Українська',
  38     );
  39     public function __construct()
  40     {
  41         if ($this->configFileIsAvailable()) {
  42             $this->init();
  43         }
  44
  45         if ($this->themeIsInstalled()) {
  46             $this->initTpl();
  47         }
  48
  49         if ($this->systemIsInstalled()) {
  50             $this->store = new Database();
  51             $this->messages = new Messages();
  52             # installation
  53             if (! $this->store->isInstalled()) {
  54                 $this->install();
  55             }
  56             $this->store->checkTags();
  57         }
  58     }
  59
  60     private function init()
  61     {
  62         Tools::initPhp();
  63         Session::$sessionName = 'poche';
  64         Session::init();
  65
  66         if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
  67             $this->user = $_SESSION['poche_user'];
  68         } else {
  69             # fake user, just for install & login screens
  70             $this->user = new User();
  71             $this->user->setConfig($this->getDefaultConfig());
  72         }
  73
  74         # l10n
  75         $language = $this->user->getConfigValue('language');
  76         putenv('LC_ALL=' . $language);
  77         setlocale(LC_ALL, $language);
  78         bindtextdomain($language, LOCALE);
  79         textdomain($language);
  80
  81         # Pagination
  82         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
  83
  84         # Set up theme
  85         $themeDirectory = $this->user->getConfigValue('theme');
  86
  87         if ($themeDirectory === false) {
  88             $themeDirectory = DEFAULT_THEME;
  89         }
  90
  91         $this->currentTheme = $themeDirectory;
  92
  93         # Set up language
  94         $languageDirectory = $this->user->getConfigValue('language');
  95
  96         if ($languageDirectory === false) {
  97             $languageDirectory = DEFAULT_THEME;
  98         }
  99
 100         $this->currentLanguage = $languageDirectory;
 101     }
 102
 103     public function configFileIsAvailable() {
 104         if (! self::$configFileAvailable) {
 105             $this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.';
 106
 107             return false;
 108         }
 109
 110         return true;
 111     }
 112
 113     public function themeIsInstalled() {
 114         $passTheme = TRUE;
 115         # Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet
 116         if (! self::$canRenderTemplates) {
 117             $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.';
 118             $passTheme = FALSE;
 119         }
 120
 121         if (! is_writable(CACHE)) {
 122             $this->notInstalledMessage[] = 'You don\'t have write access on cache directory.';
 123
 124             self::$canRenderTemplates = false;
 125
 126             $passTheme = FALSE;
 127         }
 128
 129         # Check if the selected theme and its requirements are present
 130         $theme = $this->getTheme();
 131
 132         if ($theme != '' && ! is_dir(THEME . '/' . $theme)) {
 133             $this->notInstalledMessage[] = 'The currently selected theme (' . $theme . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $theme . ')';
 134
 135             self::$canRenderTemplates = false;
 136
 137             $passTheme = FALSE;
 138         }
 139
 140         $themeInfo = $this->getThemeInfo($theme);
 141         if (isset($themeInfo['requirements']) && is_array($themeInfo['requirements'])) {
 142             foreach ($themeInfo['requirements'] as $requiredTheme) {
 143                 if (! is_dir(THEME . '/' . $requiredTheme)) {
 144                     $this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $theme . ')';
 145
 146                     self::$canRenderTemplates = false;
 147
 148                     $passTheme = FALSE;
 149                 }
 150             }
 151         }
 152
 153         if (!$passTheme) {
 154             return FALSE;
 155         }
 156
 157
 158         return true;
 159     }
 160
 161     /**
 162      * all checks before installation.
 163      * @todo move HTML to template
 164      * @return boolean
 165      */
 166     public function systemIsInstalled()
 167     {
 168         $msg = TRUE;
 169
 170         $configSalt = defined('SALT') ? constant('SALT') : '';
 171
 172         if (empty($configSalt)) {
 173             $this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.';
 174             $msg = FALSE;
 175         }
 176         if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) {
 177             Tools::logm('sqlite file doesn\'t exist');
 178             $this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.';
 179             $msg = FALSE;
 180         }
 181         if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) {
 182             $this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.';
 183             $msg = FALSE;
 184         }
 185         if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) {
 186             Tools::logm('you don\'t have write access on sqlite file');
 187             $this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.';
 188             $msg = FALSE;
 189         }
 190
 191         if (! $msg) {
 192             return false;
 193         }
 194
 195         return true;
 196     }
 197
 198     public function getNotInstalledMessage() {
 199         return $this->notInstalledMessage;
 200     }
 201
 202     private function initTpl()
 203     {
 204         $loaderChain = new Twig_Loader_Chain();
 205         $theme = $this->getTheme();
 206
 207         # add the current theme as first to the loader chain so Twig will look there first for overridden template files
 208         try {
 209             $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $theme));
 210         } catch (Twig_Error_Loader $e) {
 211             # @todo isInstalled() should catch this, inject Twig later
 212             die('The currently selected theme (' . $theme . ') does not seem to be properly installed (' . THEME . '/' . $theme .' is missing)');
 213         }
 214
 215         # add all required themes to the loader chain
 216         $themeInfo = $this->getThemeInfo($theme);
 217         if (isset($themeInfo['requirements']) && is_array($themeInfo['requirements'])) {
 218             foreach ($themeInfo['requirements'] as $requiredTheme) {
 219                 try {
 220                     $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $requiredTheme));
 221                 } catch (Twig_Error_Loader $e) {
 222                     # @todo isInstalled() should catch this, inject Twig later
 223                     die('The required "' . $requiredTheme . '" theme is missing for the current theme (' . $theme . ')');
 224                 }
 225             }
 226         }
 227
 228         if (DEBUG_POCHE) {
 229             $twigParams = array();
 230         } else {
 231             $twigParams = array('cache' => CACHE);
 232         }
 233
 234         $this->tpl = new Twig_Environment($loaderChain, $twigParams);
 235         $this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
 236
 237         # filter to display domain name of an url
 238         $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
 239         $this->tpl->addFilter($filter);
 240
 241         # filter for reading time
 242         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
 243         $this->tpl->addFilter($filter);
 244     }
 245
 246     private function install()
 247     {
 248         Tools::logm('poche still not installed');
 249         echo $this->tpl->render('install.twig', array(
 250             'token' => Session::getToken(),
 251             'theme' => $this->getTheme(),
 252             'poche_url' => Tools::getPocheUrl()
 253         ));
 254         if (isset($_GET['install'])) {
 255             if (($_POST['password'] == $_POST['password_repeat'])
 256                 && $_POST['password'] != "" && $_POST['login'] != "") {
 257                 # let's rock, install poche baby !
 258                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 259                 {
 260                     Session::logout();
 261                     Tools::logm('poche is now installed');
 262                     Tools::redirect();
 263                 }
 264             }
 265             else {
 266                 Tools::logm('error during installation');
 267                 Tools::redirect();
 268             }
 269         }
 270         exit();
 271     }
 272
 273     public function getTheme() {
 274         return $this->currentTheme;
 275     }
 276
 277     /**
 278      * Provides theme information by parsing theme.ini file if present in the theme's root directory.
 279      * In all cases, the following data will be returned:
 280      * - name: theme's name, or key if the theme is unnamed,
 281      * - current: boolean informing if the theme is the current user theme.
 282      *
 283      * @param string $theme Theme key (directory name)
 284      * @return array|boolean Theme information, or false if the theme doesn't exist.
 285      */
 286     public function getThemeInfo($theme) {
 287         if (!is_dir(THEME . '/' . $theme)) {
 288             return false;
 289         }
 290
 291         $themeIniFile = THEME . '/' . $theme . '/theme.ini';
 292         $themeInfo = array();
 293
 294         if (is_file($themeIniFile) && is_readable($themeIniFile)) {
 295             $themeInfo = parse_ini_file($themeIniFile);
 296         }
 297
 298         if ($themeInfo === false) {
 299             $themeInfo = array();
 300         }
 301         if (!isset($themeInfo['name'])) {
 302             $themeInfo['name'] = $theme;
 303         }
 304         $themeInfo['current'] = ($theme === $this->getTheme());
 305
 306         return $themeInfo;
 307     }
 308
 309     public function getInstalledThemes() {
 310         $handle = opendir(THEME);
 311         $themes = array();
 312
 313         while (($theme = readdir($handle)) !== false) {
 314             # Themes are stored in a directory, so all directory names are themes
 315             # @todo move theme installation data to database
 316             if (!is_dir(THEME . '/' . $theme) || in_array($theme, array('.', '..'))) {
 317                 continue;
 318             }
 319
 320             $themes[$theme] = $this->getThemeInfo($theme);
 321         }
 322
 323         ksort($themes);
 324
 325         return $themes;
 326     }
 327
 328     public function getLanguage() {
 329         return $this->currentLanguage;
 330     }
 331
 332     public function getInstalledLanguages() {
 333         $handle = opendir(LOCALE);
 334         $languages = array();
 335
 336         while (($language = readdir($handle)) !== false) {
 337             # Languages are stored in a directory, so all directory names are languages
 338             # @todo move language installation data to database
 339             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.', 'tools'))) {
 340                 continue;
 341             }
 342
 343             $current = false;
 344
 345             if ($language === $this->getLanguage()) {
 346                 $current = true;
 347             }
 348
 349             $languages[] = array('name' => (isset($this->language_names[$language]) ? $this->language_names[$language] : $language), 'value' => $language, 'current' => $current);
 350         }
 351
 352         return $languages;
 353     }
 354
 355     public function getDefaultConfig()
 356     {
 357         return array(
 358             'pager' => PAGINATION,
 359             'language' => LANG,
 360             'theme' => DEFAULT_THEME
 361         );
 362     }
 363
 364     protected function getPageContent(Url $url)
 365     {
 366         // Saving and clearing context
 367         $REAL = array();
 368         foreach( $GLOBALS as $key => $value ) {
 369             if( $key != 'GLOBALS' && $key != '_SESSION' && $key != 'HTTP_SESSION_VARS' ) {
 370                 $GLOBALS[$key] = array();
 371                 $REAL[$key] = $value;
 372             }
 373         }
 374         // Saving and clearing session
 375         $REAL_SESSION = array();
 376         foreach( $_SESSION as $key => $value ) {
 377             $REAL_SESSION[$key] = $value;
 378             unset($_SESSION[$key]);
 379         }
 380
 381         // Running code in different context
 382         $scope = function() {
 383             extract( func_get_arg(1) );
 384             $_GET = $_REQUEST = array(
 385                         "url" => $url->getUrl(),
 386                         "max" => 5,
 387                         "links" => "preserve",
 388                         "exc" => "",
 389                         "format" => "json",
 390                         "submit" => "Create Feed"
 391             );
 392             ob_start();
 393             require func_get_arg(0);
 394             $json = ob_get_flush();
 395             return $json;
 396         };
 397         $json = $scope( "inc/3rdparty/makefulltextfeed.php", array("url" => $url) );
 398
 399         // Clearing and restoring context
 400         foreach( $GLOBALS as $key => $value ) {
 401             if( $key != "GLOBALS" && $key != "_SESSION" ) {
 402                 unset($GLOBALS[$key]);
 403             }
 404         }
 405         foreach( $REAL as $key => $value ) {
 406             $GLOBALS[$key] = $value;
 407         }
 408         // Clearing and restoring session
 409         foreach( $_SESSION as $key => $value ) {
 410             unset($_SESSION[$key]);
 411         }
 412         foreach( $REAL_SESSION as $key => $value ) {
 413             $_SESSION[$key] = $value;
 414         }
 415         return json_decode($json, true);
 416     }
 417
 418     /**
 419      * Call action (mark as fav, archive, delete, etc.)
 420      */
 421     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 422     {
 423         switch ($action)
 424         {
 425             case 'add':
 426                 $content = $this->getPageContent($url);
 427                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 428                 $body = $content['rss']['channel']['item']['description'];
 429
 430                 // clean content from prevent xss attack
 431                 $config = HTMLPurifier_Config::createDefault();
 432                 $purifier = new HTMLPurifier($config);
 433                 $title = $purifier->purify($title);
 434                 $body = $purifier->purify($body);
 435
 436                 //search for possible duplicate if not in import mode
 437                 if (!$import) {
 438                     $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 439                 }
 440
 441                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 442                     Tools::logm('add link ' . $url->getUrl());
 443                     $sequence = '';
 444                     if (STORAGE == 'postgres') {
 445                         $sequence = 'entries_id_seq';
 446                     }
 447                     $last_id = $this->store->getLastId($sequence);
 448                     if (DOWNLOAD_PICTURES) {
 449                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 450                         Tools::logm('updating content article');
 451                         $this->store->updateContent($last_id, $content, $this->user->getId());
 452                     }
 453
 454                     if ($duplicate != NULL) {
 455                         // 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
 456                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 457                         // 1) - preserve tags and favorite, then drop old entry
 458                         $this->store->reassignTags($duplicate['id'], $last_id);
 459                         if ($duplicate['is_fav']) {
 460                           $this->store->favoriteById($last_id, $this->user->getId());
 461                         }
 462                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 463                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 464                         }
 465                     }
 466
 467                     if (!$import) {
 468                         $this->messages->add('s', _('the link has been added successfully'));
 469                     }
 470                 }
 471                 else {
 472                     if (!$import) {
 473                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 474                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 475                     }
 476                 }
 477
 478                 if (!$import) {
 479                     if ($autoclose == TRUE) {
 480                       Tools::redirect('?view=home');
 481                     } else {
 482                       Tools::redirect('?view=home&closewin=true');
 483                     }
 484                 }
 485                 break;
 486             case 'delete':
 487                 $msg = 'delete link #' . $id;
 488                 if ($this->store->deleteById($id, $this->user->getId())) {
 489                     if (DOWNLOAD_PICTURES) {
 490                         remove_directory(ABS_PATH . $id);
 491                     }
 492                     $this->messages->add('s', _('the link has been deleted successfully'));
 493                 }
 494                 else {
 495                     $this->messages->add('e', _('the link wasn\'t deleted'));
 496                     $msg = 'error : can\'t delete link #' . $id;
 497                 }
 498                 Tools::logm($msg);
 499                 Tools::redirect('?');
 500                 break;
 501             case 'toggle_fav' :
 502                 $this->store->favoriteById($id, $this->user->getId());
 503                 Tools::logm('mark as favorite link #' . $id);
 504                 if (!$import) {
 505                     Tools::redirect();
 506                 }
 507                 break;
 508             case 'toggle_archive' :
 509                 $this->store->archiveById($id, $this->user->getId());
 510                 Tools::logm('archive link #' . $id);
 511                 if (!$import) {
 512                     Tools::redirect();
 513                 }
 514                 break;
 515             case 'archive_all' :
 516                 $this->store->archiveAll($this->user->getId());
 517                 Tools::logm('archive all links');
 518                 if (!$import) {
 519                     Tools::redirect();
 520                 }
 521                 break;
 522             case 'add_tag' :
 523                 if($import){
 524                     $entry_id = $id;
 525                     $tags = explode(',', $tags);
 526                 }
 527                 else{
 528                     $tags = explode(',', $_POST['value']);
 529                     $entry_id = $_POST['entry_id'];
 530                 }
 531                 $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 532                 if (!$entry) {
 533                     $this->messages->add('e', _('Article not found!'));
 534                     Tools::logm('error : article not found');
 535                     Tools::redirect();
 536                 }
 537                 foreach($tags as $key => $tag_value) {
 538                     $value = trim($tag_value);
 539                     $tag = $this->store->retrieveTagByValue($value);
 540
 541                     if (is_null($tag)) {
 542                         # we create the tag
 543                         $tag = $this->store->createTag($value);
 544                         $sequence = '';
 545                         if (STORAGE == 'postgres') {
 546                             $sequence = 'tags_id_seq';
 547                         }
 548                         $tag_id = $this->store->getLastId($sequence);
 549                     }
 550                     else {
 551                         $tag_id = $tag['id'];
 552                     }
 553
 554                     # we assign the tag to the article
 555                     $this->store->setTagToEntry($tag_id, $entry_id);
 556                 }
 557                 if(!$import) {
 558                     Tools::redirect();
 559                 }
 560                 break;
 561             case 'remove_tag' :
 562                 $tag_id = $_GET['tag_id'];
 563                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 564                 if (!$entry) {
 565                     $this->messages->add('e', _('Article not found!'));
 566                     Tools::logm('error : article not found');
 567                     Tools::redirect();
 568                 }
 569                 $this->store->removeTagForEntry($id, $tag_id);
 570                 Tools::redirect();
 571                 break;
 572             default:
 573                 break;
 574         }
 575     }
 576
 577     function displayView($view, $id = 0)
 578     {
 579         $tpl_vars = array();
 580
 581         switch ($view)
 582         {
 583             case 'config':
 584                 $dev = trim($this->getPocheVersion('dev'));
 585                 $prod = trim($this->getPocheVersion('prod'));
 586                 $compare_dev = version_compare(POCHE, $dev);
 587                 $compare_prod = version_compare(POCHE, $prod);
 588                 $themes = $this->getInstalledThemes();
 589                 $languages = $this->getInstalledLanguages();
 590                 $token = $this->user->getConfigValue('token');
 591                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 592                 $tpl_vars = array(
 593                     'themes' => $themes,
 594                     'languages' => $languages,
 595                     'dev' => $dev,
 596                     'prod' => $prod,
 597                     'compare_dev' => $compare_dev,
 598                     'compare_prod' => $compare_prod,
 599                     'token' => $token,
 600                     'user_id' => $this->user->getId(),
 601                     'http_auth' => $http_auth,
 602                 );
 603                 Tools::logm('config view');
 604                 break;
 605             case 'edit-tags':
 606                 # tags
 607                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 608                 if (!$entry) {
 609                     $this->messages->add('e', _('Article not found!'));
 610                     Tools::logm('error : article not found');
 611                     Tools::redirect();
 612                 }
 613                 $tags = $this->store->retrieveTagsByEntry($id);
 614                 $tpl_vars = array(
 615                     'entry_id' => $id,
 616                     'tags' => $tags,
 617                     'entry' => $entry,
 618                 );
 619                 break;
 620             case 'tags':
 621                 $token = $this->user->getConfigValue('token');
 622                 $tags = $this->store->retrieveAllTags($this->user->getId());
 623                 $tpl_vars = array(
 624                     'token' => $token,
 625                     'user_id' => $this->user->getId(),
 626                     'tags' => $tags,
 627                 );
 628                 break;
 629             case 'view':
 630                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 631                 if ($entry != NULL) {
 632                     Tools::logm('view link #' . $id);
 633                     $content = $entry['content'];
 634                     if (function_exists('tidy_parse_string')) {
 635                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 636                         $tidy->cleanRepair();
 637                         $content = $tidy->value;
 638                     }
 639
 640                     # flattr checking
 641                     $flattr = new FlattrItem();
 642                     $flattr->checkItem($entry['url'], $entry['id']);
 643
 644                     # tags
 645                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 646
 647                     $tpl_vars = array(
 648                         'entry' => $entry,
 649                         'content' => $content,
 650                         'flattr' => $flattr,
 651                         'tags' => $tags
 652                     );
 653                 }
 654                 else {
 655                     Tools::logm('error in view call : entry is null');
 656                 }
 657                 break;
 658             default: # home, favorites, archive and tag views
 659                 $tpl_vars = array(
 660                     'entries' => '',
 661                     'page_links' => '',
 662                     'nb_results' => '',
 663                 );
 664
 665                 //if id is given - we retrive entries by tag: id is tag id
 666                 if ($id) {
 667                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 668                   $tpl_vars['id'] = intval($id);
 669                 }
 670
 671                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 672
 673                 if ($count > 0) {
 674                     $this->pagination->set_total($count);
 675                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 676                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 677                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 678                     $tpl_vars['page_links'] = $page_links;
 679                     $tpl_vars['nb_results'] = $count;
 680                 }
 681                 Tools::logm('display ' . $view . ' view');
 682                 break;
 683         }
 684
 685         return $tpl_vars;
 686     }
 687
 688     /**
 689      * update the password of the current user.
 690      * if MODE_DEMO is TRUE, the password can't be updated.
 691      * @todo add the return value
 692      * @todo set the new password in function header like this updatePassword($newPassword)
 693      * @return boolean
 694      */
 695     public function updatePassword()
 696     {
 697         if (MODE_DEMO) {
 698             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 699             Tools::logm('in demo mode, you can\'t do this');
 700             Tools::redirect('?view=config');
 701         }
 702         else {
 703             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 704                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 705                     $this->messages->add('s', _('your password has been updated'));
 706                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 707                     Session::logout();
 708                     Tools::logm('password updated');
 709                     Tools::redirect();
 710                 }
 711                 else {
 712                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 713                     Tools::redirect('?view=config');
 714                 }
 715             }
 716         }
 717     }
 718
 719     public function updateTheme()
 720     {
 721         # no data
 722         if (empty($_POST['theme'])) {
 723         }
 724
 725         # we are not going to change it to the current theme...
 726         if ($_POST['theme'] == $this->getTheme()) {
 727             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 728             Tools::redirect('?view=config');
 729         }
 730
 731         $themes = $this->getInstalledThemes();
 732         $actualTheme = false;
 733
 734         foreach (array_keys($themes) as $theme) {
 735             if ($theme == $_POST['theme']) {
 736                 $actualTheme = true;
 737                 break;
 738             }
 739         }
 740
 741         if (! $actualTheme) {
 742             $this->messages->add('e', _('that theme does not seem to be installed'));
 743             Tools::redirect('?view=config');
 744         }
 745
 746         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 747         $this->messages->add('s', _('you have changed your theme preferences'));
 748
 749         $currentConfig = $_SESSION['poche_user']->config;
 750         $currentConfig['theme'] = $_POST['theme'];
 751
 752         $_SESSION['poche_user']->setConfig($currentConfig);
 753
 754         $this->emptyCache();
 755
 756         Tools::redirect('?view=config');
 757     }
 758
 759     public function updateLanguage()
 760     {
 761         # no data
 762         if (empty($_POST['language'])) {
 763         }
 764
 765         # we are not going to change it to the current language...
 766         if ($_POST['language'] == $this->getLanguage()) {
 767             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 768             Tools::redirect('?view=config');
 769         }
 770
 771         $languages = $this->getInstalledLanguages();
 772         $actualLanguage = false;
 773
 774         foreach ($languages as $language) {
 775             if ($language['value'] == $_POST['language']) {
 776                 $actualLanguage = true;
 777                 break;
 778             }
 779         }
 780
 781         if (! $actualLanguage) {
 782             $this->messages->add('e', _('that language does not seem to be installed'));
 783             Tools::redirect('?view=config');
 784         }
 785
 786         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 787         $this->messages->add('s', _('you have changed your language preferences'));
 788
 789         $currentConfig = $_SESSION['poche_user']->config;
 790         $currentConfig['language'] = $_POST['language'];
 791
 792         $_SESSION['poche_user']->setConfig($currentConfig);
 793
 794         $this->emptyCache();
 795
 796         Tools::redirect('?view=config');
 797     }
 798
 799     /**
 800      * get credentials from differents sources
 801      * it redirects the user to the $referer link
 802      * @return array
 803      */
 804     private function credentials() {
 805         if(isset($_SERVER['PHP_AUTH_USER'])) {
 806             return array($_SERVER['PHP_AUTH_USER'],'php_auth',true);
 807         }
 808         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 809             return array($_POST['login'],$_POST['password'],false);
 810         }
 811         if(isset($_SERVER['REMOTE_USER'])) {
 812             return array($_SERVER['REMOTE_USER'],'http_auth',true);
 813         }
 814
 815         return array(false,false,false);
 816     }
 817
 818     /**
 819      * checks if login & password are correct and save the user in session.
 820      * it redirects the user to the $referer link
 821      * @param  string $referer the url to redirect after login
 822      * @todo add the return value
 823      * @return boolean
 824      */
 825     public function login($referer)
 826     {
 827         list($login,$password,$isauthenticated)=$this->credentials();
 828         if($login === false || $password === false) {
 829             $this->messages->add('e', _('login failed: you have to fill all fields'));
 830             Tools::logm('login failed');
 831             Tools::redirect();
 832         }
 833         if (!empty($login) && !empty($password)) {
 834             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 835             if ($user != array()) {
 836                 # Save login into Session
 837                 $longlastingsession = isset($_POST['longlastingsession']);
 838                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 839                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 840                 $this->messages->add('s', _('welcome to your wallabag'));
 841                 Tools::logm('login successful');
 842                 Tools::redirect($referer);
 843             }
 844             $this->messages->add('e', _('login failed: bad login or password'));
 845             Tools::logm('login failed');
 846             Tools::redirect();
 847         }
 848     }
 849
 850     /**
 851      * log out the poche user. It cleans the session.
 852      * @todo add the return value
 853      * @return boolean
 854      */
 855     public function logout()
 856     {
 857         $this->user = array();
 858         Session::logout();
 859         Tools::logm('logout');
 860         Tools::redirect();
 861     }
 862
 863     /**
 864      * import from Instapaper. poche needs a ./instapaper-export.html file
 865      * @todo add the return value
 866      * @param string $targetFile the file used for importing
 867      * @return boolean
 868      */
 869     private function importFromInstapaper($targetFile)
 870     {
 871         # TODO gestion des articles favs
 872         $html = new simple_html_dom();
 873         $html->load_file($targetFile);
 874         Tools::logm('starting import from instapaper');
 875
 876         $read = 0;
 877         $errors = array();
 878         foreach($html->find('ol') as $ul)
 879         {
 880             foreach($ul->find('li') as $li)
 881             {
 882                 $a = $li->find('a');
 883                 $url = new Url(base64_encode($a[0]->href));
 884                 $this->action('add', $url, 0, TRUE);
 885                 if ($read == '1') {
 886                     $sequence = '';
 887                     if (STORAGE == 'postgres') {
 888                         $sequence = 'entries_id_seq';
 889                     }
 890                     $last_id = $this->store->getLastId($sequence);
 891                     $this->action('toggle_archive', $url, $last_id, TRUE);
 892                 }
 893             }
 894
 895             # the second <ol> is for read links
 896             $read = 1;
 897         }
 898         $this->messages->add('s', _('import from instapaper completed'));
 899         Tools::logm('import from instapaper completed');
 900         Tools::redirect();
 901     }
 902
 903     /**
 904      * import from Pocket. poche needs a ./ril_export.html file
 905      * @todo add the return value
 906      * @param string $targetFile the file used for importing
 907      * @return boolean
 908      */
 909     private function importFromPocket($targetFile)
 910     {
 911         # TODO gestion des articles favs
 912         $html = new simple_html_dom();
 913         $html->load_file($targetFile);
 914         Tools::logm('starting import from pocket');
 915
 916         $read = 0;
 917         $errors = array();
 918         foreach($html->find('ul') as $ul)
 919         {
 920             foreach($ul->find('li') as $li)
 921             {
 922                 $a = $li->find('a');
 923                 $url = new Url(base64_encode($a[0]->href));
 924                 $this->action('add', $url, 0, TRUE);
 925                 $sequence = '';
 926                 if (STORAGE == 'postgres') {
 927                     $sequence = 'entries_id_seq';
 928                 }
 929                 $last_id = $this->store->getLastId($sequence);
 930                 if ($read == '1') {
 931                     $this->action('toggle_archive', $url, $last_id, TRUE);
 932                 }
 933                 $tags = $a[0]->tags;
 934                 if(!empty($tags)) {
 935                     $this->action('add_tag',$url,$last_id,true,false,$tags);
 936                 }
 937             }
 938
 939             # the second <ul> is for read links
 940             $read = 1;
 941         }
 942         $this->messages->add('s', _('import from pocket completed'));
 943         Tools::logm('import from pocket completed');
 944         Tools::redirect();
 945     }
 946
 947     /**
 948      * import from Readability. poche needs a ./readability file
 949      * @todo add the return value
 950      * @param string $targetFile the file used for importing
 951      * @return boolean
 952      */
 953     private function importFromReadability($targetFile)
 954     {
 955         # TODO gestion des articles lus / favs
 956         $str_data = file_get_contents($targetFile);
 957         $data = json_decode($str_data,true);
 958         Tools::logm('starting import from Readability');
 959         $count = 0;
 960         foreach ($data as $key => $value) {
 961             $url = NULL;
 962             $favorite = FALSE;
 963             $archive = FALSE;
 964             foreach ($value as $item) {
 965                 foreach ($item as $attr => $value) {
 966                     if ($attr == 'article__url') {
 967                         $url = new Url(base64_encode($value));
 968                     }
 969                     $sequence = '';
 970                     if (STORAGE == 'postgres') {
 971                         $sequence = 'entries_id_seq';
 972                     }
 973                     if ($value == 'true') {
 974                         if ($attr == 'favorite') {
 975                             $favorite = TRUE;
 976                         }
 977                         if ($attr == 'archive') {
 978                             $archive = TRUE;
 979                         }
 980                     }
 981                 }
 982
 983                 # we can add the url
 984                 if (!is_null($url) && $url->isCorrect()) {
 985                     $this->action('add', $url, 0, TRUE);
 986                     $count++;
 987                     if ($favorite) {
 988                         $last_id = $this->store->getLastId($sequence);
 989                         $this->action('toggle_fav', $url, $last_id, TRUE);
 990                     }
 991                     if ($archive) {
 992                         $last_id = $this->store->getLastId($sequence);
 993                         $this->action('toggle_archive', $url, $last_id, TRUE);
 994                     }
 995                 }
 996             }
 997         }
 998         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 999         Tools::logm('import from Readability completed');
1000         Tools::redirect();
1001     }
1002
1003     /**
1004      * import from Poche exported file
1005      * @param string $targetFile the file used for importing
1006      * @return boolean
1007      */
1008     private function importFromPoche($targetFile)
1009     {
1010         $str_data = file_get_contents($targetFile);
1011         $data = json_decode($str_data,true);
1012         Tools::logm('starting import from Poche');
1013
1014
1015         $sequence = '';
1016         if (STORAGE == 'postgres') {
1017             $sequence = 'entries_id_seq';
1018         }
1019
1020         $count = 0;
1021         foreach ($data as $value) {
1022
1023             $url = new Url(base64_encode($value['url']));
1024             $favorite = ($value['is_fav'] == -1);
1025             $archive = ($value['is_read'] == -1);
1026
1027             # we can add the url
1028             if (!is_null($url) && $url->isCorrect()) {
1029
1030                 $this->action('add', $url, 0, TRUE);
1031
1032                 $count++;
1033                 if ($favorite) {
1034                     $last_id = $this->store->getLastId($sequence);
1035                     $this->action('toggle_fav', $url, $last_id, TRUE);
1036                 }
1037                 if ($archive) {
1038                     $last_id = $this->store->getLastId($sequence);
1039                     $this->action('toggle_archive', $url, $last_id, TRUE);
1040                 }
1041             }
1042
1043         }
1044         $this->messages->add('s', _('import from Poche completed. ' . $count . ' new links.'));
1045         Tools::logm('import from Poche completed');
1046         Tools::redirect();
1047     }
1048
1049     /**
1050      * import datas into your poche
1051      * @param  string $from name of the service to import : pocket, instapaper or readability
1052      * @todo add the return value
1053      * @return boolean
1054      */
1055     public function import($from)
1056     {
1057         $providers = array(
1058             'pocket' => 'importFromPocket',
1059             'readability' => 'importFromReadability',
1060             'instapaper' => 'importFromInstapaper',
1061             'poche' => 'importFromPoche',
1062         );
1063
1064         if (! isset($providers[$from])) {
1065             $this->messages->add('e', _('Unknown import provider.'));
1066             Tools::redirect();
1067         }
1068
1069         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
1070         $targetFile = constant($targetDefinition);
1071
1072         if (! defined($targetDefinition)) {
1073             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
1074             Tools::redirect();
1075         }
1076
1077         if (! file_exists($targetFile)) {
1078             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
1079             Tools::redirect();
1080         }
1081
1082         $this->$providers[$from]($targetFile);
1083     }
1084
1085     /**
1086      * export poche entries in json
1087      * @return json all poche entries
1088      */
1089     public function export()
1090     {
1091         $entries = $this->store->retrieveAll($this->user->getId());
1092         echo $this->tpl->render('export.twig', array(
1093             'export' => Tools::renderJson($entries),
1094         ));
1095         Tools::logm('export view');
1096     }
1097
1098     /**
1099      * Checks online the latest version of poche and cache it
1100      * @param  string $which 'prod' or 'dev'
1101      * @return string        latest $which version
1102      */
1103     private function getPocheVersion($which = 'prod')
1104     {
1105         $cache_file = CACHE . '/' . $which;
1106
1107         # checks if the cached version file exists
1108         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
1109            $version = file_get_contents($cache_file);
1110         } else {
1111            $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
1112            file_put_contents($cache_file, $version, LOCK_EX);
1113         }
1114         return $version;
1115     }
1116
1117     public function generateToken()
1118     {
1119         if (ini_get('open_basedir') === '') {
1120             $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
1121         }
1122         else {
1123             $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
1124         }
1125
1126         $token = str_replace('+', '', $token);
1127         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
1128         $currentConfig = $_SESSION['poche_user']->config;
1129         $currentConfig['token'] = $token;
1130         $_SESSION['poche_user']->setConfig($currentConfig);
1131         Tools::redirect();
1132     }
1133
1134     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
1135     {
1136         $allowed_types = array('home', 'fav', 'archive', 'tag');
1137         $config = $this->store->getConfigUser($user_id);
1138
1139         if (!in_array($type, $allowed_types) ||
1140             $token != $config['token']) {
1141             die(_('Uh, there is a problem while generating feeds.'));
1142         }
1143         // Check the token
1144
1145         $feed = new FeedWriter(RSS2);
1146         $feed->setTitle('wallabag — ' . $type . ' feed');
1147         $feed->setLink(Tools::getPocheUrl());
1148         $feed->setChannelElement('updated', date(DATE_RSS , time()));
1149         $feed->setChannelElement('author', 'wallabag');
1150
1151         if ($type == 'tag') {
1152             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
1153         }
1154         else {
1155             $entries = $this->store->getEntriesByView($type, $user_id);
1156         }
1157
1158         if (count($entries) > 0) {
1159             foreach ($entries as $entry) {
1160                 $newItem = $feed->createNewItem();
1161                 $newItem->setTitle($entry['title']);
1162                 $newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1163                 $newItem->setDate(time());
1164                 $newItem->setDescription($entry['content']);
1165                 $feed->addItem($newItem);
1166             }
1167         }
1168
1169         $feed->genarateFeed();
1170         exit;
1171     }
1172
1173     public function emptyCache() {
1174         $files = new RecursiveIteratorIterator(
1175             new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
1176             RecursiveIteratorIterator::CHILD_FIRST
1177         );
1178
1179         foreach ($files as $fileinfo) {
1180             $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
1181             $todo($fileinfo->getRealPath());
1182         }
1183
1184         Tools::logm('empty cache');
1185         $this->messages->add('s', _('Cache deleted.'));
1186         Tools::redirect();
1187     }
1188 }