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 $notInstalledMessage = array();
  25
  26     public function __construct()
  27     {
  28         if ($this->configFileIsAvailable()) {
  29             $this->init();
  30         }
  31
  32         if ($this->themeIsInstalled()) {
  33             $this->initTpl();
  34         }
  35
  36         if ($this->systemIsInstalled()) {
  37             $this->store = new Database();
  38             $this->messages = new Messages();
  39             # installation
  40             if (! $this->store->isInstalled()) {
  41                 $this->install();
  42             }
  43             $this->store->checkTags();
  44         }
  45     }
  46
  47     private function init()
  48     {
  49         Tools::initPhp();
  50         Session::$sessionName = 'poche';
  51         Session::init();
  52
  53         if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
  54             $this->user = $_SESSION['poche_user'];
  55         } else {
  56             # fake user, just for install & login screens
  57             $this->user = new User();
  58             $this->user->setConfig($this->getDefaultConfig());
  59         }
  60
  61         # l10n
  62         $language = $this->user->getConfigValue('language');
  63         putenv('LC_ALL=' . $language);
  64         setlocale(LC_ALL, $language);
  65         bindtextdomain($language, LOCALE);
  66         textdomain($language);
  67
  68         # Pagination
  69         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
  70
  71         # Set up theme
  72         $themeDirectory = $this->user->getConfigValue('theme');
  73
  74         if ($themeDirectory === false) {
  75             $themeDirectory = DEFAULT_THEME;
  76         }
  77
  78         $this->currentTheme = $themeDirectory;
  79
  80         # Set up language
  81         $languageDirectory = $this->user->getConfigValue('language');
  82
  83         if ($languageDirectory === false) {
  84             $languageDirectory = DEFAULT_THEME;
  85         }
  86
  87         $this->currentLanguage = $languageDirectory;
  88     }
  89
  90     public function configFileIsAvailable() {
  91         if (! self::$configFileAvailable) {
  92             $this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.';
  93
  94             return false;
  95         }
  96
  97         return true;
  98     }
  99
 100     public function themeIsInstalled() {
 101         $passTheme = TRUE;
 102         # Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet
 103         if (! self::$canRenderTemplates) {
 104             $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.';
 105             $passTheme = FALSE;
 106         }
 107
 108         if (! is_writable(CACHE)) {
 109             $this->notInstalledMessage[] = 'You don\'t have write access on cache directory.';
 110
 111             self::$canRenderTemplates = false;
 112
 113             $passTheme = FALSE;
 114         }
 115
 116         # Check if the selected theme and its requirements are present
 117         $theme = $this->getTheme();
 118
 119         if ($theme != '' && ! is_dir(THEME . '/' . $theme)) {
 120             $this->notInstalledMessage[] = 'The currently selected theme (' . $theme . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $theme . ')';
 121
 122             self::$canRenderTemplates = false;
 123
 124             $passTheme = FALSE;
 125         }
 126
 127         $themeInfo = $this->getThemeInfo($theme);
 128         if (isset($themeInfo['requirements']) && is_array($themeInfo['requirements'])) {
 129             foreach ($themeInfo['requirements'] as $requiredTheme) {
 130                 if (! is_dir(THEME . '/' . $requiredTheme)) {
 131                     $this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $theme . ')';
 132
 133                     self::$canRenderTemplates = false;
 134
 135                     $passTheme = FALSE;
 136                 }
 137             }
 138         }
 139
 140         if (!$passTheme) {
 141             return FALSE;
 142         }
 143
 144
 145         return true;
 146     }
 147
 148     /**
 149      * all checks before installation.
 150      * @todo move HTML to template
 151      * @return boolean
 152      */
 153     public function systemIsInstalled()
 154     {
 155         $msg = TRUE;
 156
 157         $configSalt = defined('SALT') ? constant('SALT') : '';
 158
 159         if (empty($configSalt)) {
 160             $this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.';
 161             $msg = FALSE;
 162         }
 163         if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) {
 164             Tools::logm('sqlite file doesn\'t exist');
 165             $this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.';
 166             $msg = FALSE;
 167         }
 168         if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) {
 169             $this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.';
 170             $msg = FALSE;
 171         }
 172         if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) {
 173             Tools::logm('you don\'t have write access on sqlite file');
 174             $this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.';
 175             $msg = FALSE;
 176         }
 177
 178         if (! $msg) {
 179             return false;
 180         }
 181
 182         return true;
 183     }
 184
 185     public function getNotInstalledMessage() {
 186         return $this->notInstalledMessage;
 187     }
 188
 189     private function initTpl()
 190     {
 191         $loaderChain = new Twig_Loader_Chain();
 192         $theme = $this->getTheme();
 193
 194         # add the current theme as first to the loader chain so Twig will look there first for overridden template files
 195         try {
 196             $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $theme));
 197         } catch (Twig_Error_Loader $e) {
 198             # @todo isInstalled() should catch this, inject Twig later
 199             die('The currently selected theme (' . $theme . ') does not seem to be properly installed (' . THEME . '/' . $theme .' is missing)');
 200         }
 201
 202         # add all required themes to the loader chain
 203         $themeInfo = $this->getThemeInfo($theme);
 204         if (isset($themeInfo['requirements']) && is_array($themeInfo['requirements'])) {
 205             foreach ($themeInfo['requirements'] as $requiredTheme) {
 206                 try {
 207                     $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $requiredTheme));
 208                 } catch (Twig_Error_Loader $e) {
 209                     # @todo isInstalled() should catch this, inject Twig later
 210                     die('The required "' . $requiredTheme . '" theme is missing for the current theme (' . $theme . ')');
 211                 }
 212             }
 213         }
 214
 215         if (DEBUG_POCHE) {
 216             $twigParams = array();
 217         } else {
 218             $twigParams = array('cache' => CACHE);
 219         }
 220
 221         $this->tpl = new Twig_Environment($loaderChain, $twigParams);
 222         $this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
 223
 224         # filter to display domain name of an url
 225         $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
 226         $this->tpl->addFilter($filter);
 227
 228         # filter for reading time
 229         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
 230         $this->tpl->addFilter($filter);
 231     }
 232
 233     private function install()
 234     {
 235         Tools::logm('poche still not installed');
 236         echo $this->tpl->render('install.twig', array(
 237             'token' => Session::getToken(),
 238             'theme' => $this->getTheme(),
 239             'poche_url' => Tools::getPocheUrl()
 240         ));
 241         if (isset($_GET['install'])) {
 242             if (($_POST['password'] == $_POST['password_repeat'])
 243                 && $_POST['password'] != "" && $_POST['login'] != "") {
 244                 # let's rock, install poche baby !
 245                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 246                 {
 247                     Session::logout();
 248                     Tools::logm('poche is now installed');
 249                     Tools::redirect();
 250                 }
 251             }
 252             else {
 253                 Tools::logm('error during installation');
 254                 Tools::redirect();
 255             }
 256         }
 257         exit();
 258     }
 259
 260     public function getTheme() {
 261         return $this->currentTheme;
 262     }
 263
 264     /**
 265      * Provides theme information by parsing theme.ini file if present in the theme's root directory.
 266      * In all cases, the following data will be returned:
 267      * - name: theme's name, or key if the theme is unnamed,
 268      * - current: boolean informing if the theme is the current user theme.
 269      *
 270      * @param string $theme Theme key (directory name)
 271      * @return array|boolean Theme information, or false if the theme doesn't exist.
 272      */
 273     public function getThemeInfo($theme) {
 274         if (!is_dir(THEME . '/' . $theme)) {
 275             return false;
 276         }
 277
 278         $themeIniFile = THEME . '/' . $theme . '/theme.ini';
 279         $themeInfo = array();
 280
 281         if (is_file($themeIniFile) && is_readable($themeIniFile)) {
 282             $themeInfo = parse_ini_file($themeIniFile);
 283         }
 284
 285         if ($themeInfo === false) {
 286             $themeInfo = array();
 287         }
 288         if (!isset($themeInfo['name'])) {
 289             $themeInfo['name'] = $theme;
 290         }
 291         $themeInfo['current'] = ($theme === $this->getTheme());
 292
 293         return $themeInfo;
 294     }
 295
 296     public function getInstalledThemes() {
 297         $handle = opendir(THEME);
 298         $themes = array();
 299
 300         while (($theme = readdir($handle)) !== false) {
 301             # Themes are stored in a directory, so all directory names are themes
 302             # @todo move theme installation data to database
 303             if (!is_dir(THEME . '/' . $theme) || in_array($theme, array('.', '..'))) {
 304                 continue;
 305             }
 306
 307             $themes[$theme] = $this->getThemeInfo($theme);
 308         }
 309
 310         ksort($themes);
 311
 312         return $themes;
 313     }
 314
 315     public function getLanguage() {
 316         return $this->currentLanguage;
 317     }
 318
 319     public function getInstalledLanguages() {
 320         $handle = opendir(LOCALE);
 321         $languages = array();
 322
 323         while (($language = readdir($handle)) !== false) {
 324             # Languages are stored in a directory, so all directory names are languages
 325             # @todo move language installation data to database
 326             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.'))) {
 327                 continue;
 328             }
 329
 330             $current = false;
 331
 332             if ($language === $this->getLanguage()) {
 333                 $current = true;
 334             }
 335
 336             $languages[] = array('name' => $language, 'current' => $current);
 337         }
 338
 339         return $languages;
 340     }
 341
 342     public function getDefaultConfig()
 343     {
 344         return array(
 345             'pager' => PAGINATION,
 346             'language' => LANG,
 347             'theme' => DEFAULT_THEME
 348         );
 349     }
 350
 351     protected function getPageContent(Url $url)
 352     {
 353         // Saving and clearing context
 354         $REAL = array();
 355         foreach( $GLOBALS as $key => $value ) {
 356             if( $key != "GLOBALS" && $key != "_SESSION" ) {
 357                 $GLOBALS[$key] = array();
 358                 $REAL[$key] = $value;
 359             }
 360         }
 361         // Saving and clearing session
 362         $REAL_SESSION = array();
 363         foreach( $_SESSION as $key => $value ) {
 364             $REAL_SESSION[$key] = $value;
 365             unset($_SESSION[$key]);
 366         }
 367
 368         // Running code in different context
 369         $scope = function() {
 370             extract( func_get_arg(1) );
 371             $_GET = $_REQUEST = array(
 372                         "url" => $url->getUrl(),
 373                         "max" => 5,
 374                         "links" => "preserve",
 375                         "exc" => "",
 376                         "format" => "json",
 377                         "submit" => "Create Feed"
 378             );
 379             ob_start();
 380             require func_get_arg(0);
 381             $json = ob_get_flush();
 382             return $json;
 383         };
 384         $json = $scope( "inc/3rdparty/makefulltextfeed.php", array("url" => $url) );
 385
 386         // Clearing and restoring context
 387         foreach( $GLOBALS as $key => $value ) {
 388             if( $key != "GLOBALS" && $key != "_SESSION" ) {
 389                 unset($GLOBALS[$key]);
 390             }
 391         }
 392         foreach( $REAL as $key => $value ) {
 393             $GLOBALS[$key] = $value;
 394         }
 395         // Clearing and restoring session
 396         foreach( $_SESSION as $key => $value ) {
 397             unset($_SESSION[$key]);
 398         }
 399         foreach( $REAL_SESSION as $key => $value ) {
 400             $_SESSION[$key] = $value;
 401         }
 402         return json_decode($json, true);
 403     }
 404
 405     /**
 406      * Call action (mark as fav, archive, delete, etc.)
 407      */
 408     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 409     {
 410         switch ($action)
 411         {
 412             case 'add':
 413                 $content = $this->getPageContent($url);
 414                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 415                 $body = $content['rss']['channel']['item']['description'];
 416
 417                 //search for possible duplicate if not in import mode
 418                 if (!$import) {
 419                     $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 420                 }
 421
 422                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 423                     Tools::logm('add link ' . $url->getUrl());
 424                     $sequence = '';
 425                     if (STORAGE == 'postgres') {
 426                         $sequence = 'entries_id_seq';
 427                     }
 428                     $last_id = $this->store->getLastId($sequence);
 429                     if (DOWNLOAD_PICTURES) {
 430                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 431                         Tools::logm('updating content article');
 432                         $this->store->updateContent($last_id, $content, $this->user->getId());
 433                     }
 434
 435                     if ($duplicate != NULL) {
 436                         // 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
 437                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 438                         // 1) - preserve tags and favorite, then drop old entry
 439                         $this->store->reassignTags($duplicate['id'], $last_id);
 440                         if ($duplicate['is_fav']) {
 441                           $this->store->favoriteById($last_id, $this->user->getId());
 442                         }
 443                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 444                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 445                         }
 446                     }
 447
 448                     if (!$import) {
 449                         $this->messages->add('s', _('the link has been added successfully'));
 450                     }
 451                 }
 452                 else {
 453                     if (!$import) {
 454                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 455                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 456                     }
 457                 }
 458
 459                 if (!$import) {
 460                     if ($autoclose == TRUE) {
 461                       Tools::redirect('?view=home');
 462                     } else {
 463                       Tools::redirect('?view=home&closewin=true');
 464                     }
 465                 }
 466                 break;
 467             case 'delete':
 468                 $msg = 'delete link #' . $id;
 469                 if ($this->store->deleteById($id, $this->user->getId())) {
 470                     if (DOWNLOAD_PICTURES) {
 471                         remove_directory(ABS_PATH . $id);
 472                     }
 473                     $this->messages->add('s', _('the link has been deleted successfully'));
 474                 }
 475                 else {
 476                     $this->messages->add('e', _('the link wasn\'t deleted'));
 477                     $msg = 'error : can\'t delete link #' . $id;
 478                 }
 479                 Tools::logm($msg);
 480                 Tools::redirect('?');
 481                 break;
 482             case 'toggle_fav' :
 483                 $this->store->favoriteById($id, $this->user->getId());
 484                 Tools::logm('mark as favorite link #' . $id);
 485                 if (!$import) {
 486                     Tools::redirect();
 487                 }
 488                 break;
 489             case 'toggle_archive' :
 490                 $this->store->archiveById($id, $this->user->getId());
 491                 Tools::logm('archive link #' . $id);
 492                 if (!$import) {
 493                     Tools::redirect();
 494                 }
 495                 break;
 496             case 'archive_all' :
 497                 $this->store->archiveAll($this->user->getId());
 498                 Tools::logm('archive all links');
 499                 if (!$import) {
 500                     Tools::redirect();
 501                 }
 502                 break;
 503             case 'add_tag' :
 504                 if($import){
 505                     $entry_id = $id;
 506                     $tags = explode(',', $tags);
 507                 }
 508                 else{
 509                     $tags = explode(',', $_POST['value']);
 510                     $entry_id = $_POST['entry_id'];
 511                 }
 512                 $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 513                 if (!$entry) {
 514                     $this->messages->add('e', _('Article not found!'));
 515                     Tools::logm('error : article not found');
 516                     Tools::redirect();
 517                 }
 518                 foreach($tags as $key => $tag_value) {
 519                     $value = trim($tag_value);
 520                     $tag = $this->store->retrieveTagByValue($value);
 521
 522                     if (is_null($tag)) {
 523                         # we create the tag
 524                         $tag = $this->store->createTag($value);
 525                         $sequence = '';
 526                         if (STORAGE == 'postgres') {
 527                             $sequence = 'tags_id_seq';
 528                         }
 529                         $tag_id = $this->store->getLastId($sequence);
 530                     }
 531                     else {
 532                         $tag_id = $tag['id'];
 533                     }
 534
 535                     # we assign the tag to the article
 536                     $this->store->setTagToEntry($tag_id, $entry_id);
 537                 }
 538                 if(!$import) {
 539                     Tools::redirect();
 540                 }
 541                 break;
 542             case 'remove_tag' :
 543                 $tag_id = $_GET['tag_id'];
 544                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 545                 if (!$entry) {
 546                     $this->messages->add('e', _('Article not found!'));
 547                     Tools::logm('error : article not found');
 548                     Tools::redirect();
 549                 }
 550                 $this->store->removeTagForEntry($id, $tag_id);
 551                 Tools::redirect();
 552                 break;
 553             default:
 554                 break;
 555         }
 556     }
 557
 558     function displayView($view, $id = 0)
 559     {
 560         $tpl_vars = array();
 561
 562         switch ($view)
 563         {
 564             case 'config':
 565                 $dev = trim($this->getPocheVersion('dev'));
 566                 $prod = trim($this->getPocheVersion('prod'));
 567                 $compare_dev = version_compare(POCHE, $dev);
 568                 $compare_prod = version_compare(POCHE, $prod);
 569                 $themes = $this->getInstalledThemes();
 570                 $languages = $this->getInstalledLanguages();
 571                 $token = $this->user->getConfigValue('token');
 572                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 573                 $tpl_vars = array(
 574                     'themes' => $themes,
 575                     'languages' => $languages,
 576                     'dev' => $dev,
 577                     'prod' => $prod,
 578                     'compare_dev' => $compare_dev,
 579                     'compare_prod' => $compare_prod,
 580                     'token' => $token,
 581                     'user_id' => $this->user->getId(),
 582                     'http_auth' => $http_auth,
 583                 );
 584                 Tools::logm('config view');
 585                 break;
 586             case 'edit-tags':
 587                 # tags
 588                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 589                 if (!$entry) {
 590                     $this->messages->add('e', _('Article not found!'));
 591                     Tools::logm('error : article not found');
 592                     Tools::redirect();
 593                 }
 594                 $tags = $this->store->retrieveTagsByEntry($id);
 595                 $tpl_vars = array(
 596                     'entry_id' => $id,
 597                     'tags' => $tags,
 598                 );
 599                 break;
 600             case 'tag':
 601                 $entries = $this->store->retrieveEntriesByTag($id, $this->user->getId());
 602                 $tag = $this->store->retrieveTag($id, $this->user->getId());
 603                 $tpl_vars = array(
 604                     'tag' => $tag,
 605                     'entries' => $entries,
 606                 );
 607                 break;
 608             case 'tags':
 609                 $token = $this->user->getConfigValue('token');
 610                 $tags = $this->store->retrieveAllTags($this->user->getId());
 611                 $tpl_vars = array(
 612                     'token' => $token,
 613                     'user_id' => $this->user->getId(),
 614                     'tags' => $tags,
 615                 );
 616                 break;
 617             case 'view':
 618                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 619                 if ($entry != NULL) {
 620                     Tools::logm('view link #' . $id);
 621                     $content = $entry['content'];
 622                     if (function_exists('tidy_parse_string')) {
 623                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 624                         $tidy->cleanRepair();
 625                         $content = $tidy->value;
 626                     }
 627
 628                     # flattr checking
 629                     $flattr = new FlattrItem();
 630                     $flattr->checkItem($entry['url'], $entry['id']);
 631
 632                     # tags
 633                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 634
 635                     $tpl_vars = array(
 636                         'entry' => $entry,
 637                         'content' => $content,
 638                         'flattr' => $flattr,
 639                         'tags' => $tags
 640                     );
 641                 }
 642                 else {
 643                     Tools::logm('error in view call : entry is null');
 644                 }
 645                 break;
 646             default: # home, favorites and archive views
 647                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 648                 $tpl_vars = array(
 649                     'entries' => '',
 650                     'page_links' => '',
 651                     'nb_results' => '',
 652                 );
 653
 654                 if (count($entries) > 0) {
 655                     $this->pagination->set_total(count($entries));
 656                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 657                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&'));
 658                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 659                     $tpl_vars['entries'] = $datas;
 660                     $tpl_vars['page_links'] = $page_links;
 661                     $tpl_vars['nb_results'] = count($entries);
 662                 }
 663                 Tools::logm('display ' . $view . ' view');
 664                 break;
 665         }
 666
 667         return $tpl_vars;
 668     }
 669
 670     /**
 671      * update the password of the current user.
 672      * if MODE_DEMO is TRUE, the password can't be updated.
 673      * @todo add the return value
 674      * @todo set the new password in function header like this updatePassword($newPassword)
 675      * @return boolean
 676      */
 677     public function updatePassword()
 678     {
 679         if (MODE_DEMO) {
 680             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 681             Tools::logm('in demo mode, you can\'t do this');
 682             Tools::redirect('?view=config');
 683         }
 684         else {
 685             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 686                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 687                     $this->messages->add('s', _('your password has been updated'));
 688                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 689                     Session::logout();
 690                     Tools::logm('password updated');
 691                     Tools::redirect();
 692                 }
 693                 else {
 694                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 695                     Tools::redirect('?view=config');
 696                 }
 697             }
 698         }
 699     }
 700
 701     public function updateTheme()
 702     {
 703         # no data
 704         if (empty($_POST['theme'])) {
 705         }
 706
 707         # we are not going to change it to the current theme...
 708         if ($_POST['theme'] == $this->getTheme()) {
 709             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 710             Tools::redirect('?view=config');
 711         }
 712
 713         $themes = $this->getInstalledThemes();
 714         $actualTheme = false;
 715
 716         foreach (array_keys($themes) as $theme) {
 717             if ($theme == $_POST['theme']) {
 718                 $actualTheme = true;
 719                 break;
 720             }
 721         }
 722
 723         if (! $actualTheme) {
 724             $this->messages->add('e', _('that theme does not seem to be installed'));
 725             Tools::redirect('?view=config');
 726         }
 727
 728         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 729         $this->messages->add('s', _('you have changed your theme preferences'));
 730
 731         $currentConfig = $_SESSION['poche_user']->config;
 732         $currentConfig['theme'] = $_POST['theme'];
 733
 734         $_SESSION['poche_user']->setConfig($currentConfig);
 735
 736         Tools::redirect('?view=config');
 737     }
 738
 739     public function updateLanguage()
 740     {
 741         # no data
 742         if (empty($_POST['language'])) {
 743         }
 744
 745         # we are not going to change it to the current language...
 746         if ($_POST['language'] == $this->getLanguage()) {
 747             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 748             Tools::redirect('?view=config');
 749         }
 750
 751         $languages = $this->getInstalledLanguages();
 752         $actualLanguage = false;
 753
 754         foreach ($languages as $language) {
 755             if ($language['name'] == $_POST['language']) {
 756                 $actualLanguage = true;
 757                 break;
 758             }
 759         }
 760
 761         if (! $actualLanguage) {
 762             $this->messages->add('e', _('that language does not seem to be installed'));
 763             Tools::redirect('?view=config');
 764         }
 765
 766         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 767         $this->messages->add('s', _('you have changed your language preferences'));
 768
 769         $currentConfig = $_SESSION['poche_user']->config;
 770         $currentConfig['language'] = $_POST['language'];
 771
 772         $_SESSION['poche_user']->setConfig($currentConfig);
 773
 774         Tools::redirect('?view=config');
 775     }
 776
 777     /**
 778      * get credentials from differents sources
 779      * it redirects the user to the $referer link
 780      * @return array
 781      */
 782     private function credentials() {
 783         if(isset($_SERVER['PHP_AUTH_USER'])) {
 784             return array($_SERVER['PHP_AUTH_USER'],'php_auth',true);
 785         }
 786         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 787             return array($_POST['login'],$_POST['password'],false);
 788         }
 789         if(isset($_SERVER['REMOTE_USER'])) {
 790             return array($_SERVER['REMOTE_USER'],'http_auth',true);
 791         }
 792
 793         return array(false,false,false);
 794     }
 795
 796     /**
 797      * checks if login & password are correct and save the user in session.
 798      * it redirects the user to the $referer link
 799      * @param  string $referer the url to redirect after login
 800      * @todo add the return value
 801      * @return boolean
 802      */
 803     public function login($referer)
 804     {
 805         list($login,$password,$isauthenticated)=$this->credentials();
 806         if($login === false || $password === false) {
 807             $this->messages->add('e', _('login failed: you have to fill all fields'));
 808             Tools::logm('login failed');
 809             Tools::redirect();
 810         }
 811         if (!empty($login) && !empty($password)) {
 812             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 813             if ($user != array()) {
 814                 # Save login into Session
 815                 $longlastingsession = isset($_POST['longlastingsession']);
 816                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 817                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 818                 $this->messages->add('s', _('welcome to your wallabag'));
 819                 Tools::logm('login successful');
 820                 Tools::redirect($referer);
 821             }
 822             $this->messages->add('e', _('login failed: bad login or password'));
 823             Tools::logm('login failed');
 824             Tools::redirect();
 825         }
 826     }
 827
 828     /**
 829      * log out the poche user. It cleans the session.
 830      * @todo add the return value
 831      * @return boolean
 832      */
 833     public function logout()
 834     {
 835         $this->user = array();
 836         Session::logout();
 837         Tools::logm('logout');
 838         Tools::redirect();
 839     }
 840
 841     /**
 842      * import from Instapaper. poche needs a ./instapaper-export.html file
 843      * @todo add the return value
 844      * @param string $targetFile the file used for importing
 845      * @return boolean
 846      */
 847     private function importFromInstapaper($targetFile)
 848     {
 849         # TODO gestion des articles favs
 850         $html = new simple_html_dom();
 851         $html->load_file($targetFile);
 852         Tools::logm('starting import from instapaper');
 853
 854         $read = 0;
 855         $errors = array();
 856         foreach($html->find('ol') as $ul)
 857         {
 858             foreach($ul->find('li') as $li)
 859             {
 860                 $a = $li->find('a');
 861                 $url = new Url(base64_encode($a[0]->href));
 862                 $this->action('add', $url, 0, TRUE);
 863                 if ($read == '1') {
 864                     $sequence = '';
 865                     if (STORAGE == 'postgres') {
 866                         $sequence = 'entries_id_seq';
 867                     }
 868                     $last_id = $this->store->getLastId($sequence);
 869                     $this->action('toggle_archive', $url, $last_id, TRUE);
 870                 }
 871             }
 872
 873             # the second <ol> is for read links
 874             $read = 1;
 875         }
 876         $this->messages->add('s', _('import from instapaper completed'));
 877         Tools::logm('import from instapaper completed');
 878         Tools::redirect();
 879     }
 880
 881     /**
 882      * import from Pocket. poche needs a ./ril_export.html file
 883      * @todo add the return value
 884      * @param string $targetFile the file used for importing
 885      * @return boolean
 886      */
 887     private function importFromPocket($targetFile)
 888     {
 889         # TODO gestion des articles favs
 890         $html = new simple_html_dom();
 891         $html->load_file($targetFile);
 892         Tools::logm('starting import from pocket');
 893
 894         $read = 0;
 895         $errors = array();
 896         foreach($html->find('ul') as $ul)
 897         {
 898             foreach($ul->find('li') as $li)
 899             {
 900                 $a = $li->find('a');
 901                 $url = new Url(base64_encode($a[0]->href));
 902                 $this->action('add', $url, 0, TRUE);
 903                 $sequence = '';
 904                 if (STORAGE == 'postgres') {
 905                     $sequence = 'entries_id_seq';
 906                 }
 907                 $last_id = $this->store->getLastId($sequence);
 908                 if ($read == '1') {
 909                     $this->action('toggle_archive', $url, $last_id, TRUE);
 910                 }
 911                 $tags = $a[0]->tags;
 912                 if(!empty($tags)) {
 913                     $this->action('add_tag',$url,$last_id,true,false,$tags);
 914                 }
 915             }
 916
 917             # the second <ul> is for read links
 918             $read = 1;
 919         }
 920         $this->messages->add('s', _('import from pocket completed'));
 921         Tools::logm('import from pocket completed');
 922         Tools::redirect();
 923     }
 924
 925     /**
 926      * import from Readability. poche needs a ./readability file
 927      * @todo add the return value
 928      * @param string $targetFile the file used for importing
 929      * @return boolean
 930      */
 931     private function importFromReadability($targetFile)
 932     {
 933         # TODO gestion des articles lus / favs
 934         $str_data = file_get_contents($targetFile);
 935         $data = json_decode($str_data,true);
 936         Tools::logm('starting import from Readability');
 937         $count = 0;
 938         foreach ($data as $key => $value) {
 939             $url = NULL;
 940             $favorite = FALSE;
 941             $archive = FALSE;
 942             foreach ($value as $item) {
 943                 foreach ($item as $attr => $value) {
 944                     if ($attr == 'article__url') {
 945                         $url = new Url(base64_encode($value));
 946                     }
 947                     $sequence = '';
 948                     if (STORAGE == 'postgres') {
 949                         $sequence = 'entries_id_seq';
 950                     }
 951                     if ($value == 'true') {
 952                         if ($attr == 'favorite') {
 953                             $favorite = TRUE;
 954                         }
 955                         if ($attr == 'archive') {
 956                             $archive = TRUE;
 957                         }
 958                     }
 959                 }
 960
 961                 # we can add the url
 962                 if (!is_null($url) && $url->isCorrect()) {
 963                     $this->action('add', $url, 0, TRUE);
 964                     $count++;
 965                     if ($favorite) {
 966                         $last_id = $this->store->getLastId($sequence);
 967                         $this->action('toggle_fav', $url, $last_id, TRUE);
 968                     }
 969                     if ($archive) {
 970                         $last_id = $this->store->getLastId($sequence);
 971                         $this->action('toggle_archive', $url, $last_id, TRUE);
 972                     }
 973                 }
 974             }
 975         }
 976         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 977         Tools::logm('import from Readability completed');
 978         Tools::redirect();
 979     }
 980
 981     /**
 982      * import from Poche exported file
 983      * @param string $targetFile the file used for importing
 984      * @return boolean
 985      */
 986     private function importFromPoche($targetFile)
 987     {
 988         $str_data = file_get_contents($targetFile);
 989         $data = json_decode($str_data,true);
 990         Tools::logm('starting import from Poche');
 991
 992
 993         $sequence = '';
 994         if (STORAGE == 'postgres') {
 995             $sequence = 'entries_id_seq';
 996         }
 997
 998         $count = 0;
 999         foreach ($data as $value) {
1000
1001             $url = new Url(base64_encode($value['url']));
1002             $favorite = ($value['is_fav'] == -1);
1003             $archive = ($value['is_read'] == -1);
1004
1005             # we can add the url
1006             if (!is_null($url) && $url->isCorrect()) {
1007
1008                 $this->action('add', $url, 0, TRUE);
1009
1010                 $count++;
1011                 if ($favorite) {
1012                     $last_id = $this->store->getLastId($sequence);
1013                     $this->action('toggle_fav', $url, $last_id, TRUE);
1014                 }
1015                 if ($archive) {
1016                     $last_id = $this->store->getLastId($sequence);
1017                     $this->action('toggle_archive', $url, $last_id, TRUE);
1018                 }
1019             }
1020
1021         }
1022         $this->messages->add('s', _('import from Poche completed. ' . $count . ' new links.'));
1023         Tools::logm('import from Poche completed');
1024         Tools::redirect();
1025     }
1026
1027     /**
1028      * import datas into your poche
1029      * @param  string $from name of the service to import : pocket, instapaper or readability
1030      * @todo add the return value
1031      * @return boolean
1032      */
1033     public function import($from)
1034     {
1035         $providers = array(
1036             'pocket' => 'importFromPocket',
1037             'readability' => 'importFromReadability',
1038             'instapaper' => 'importFromInstapaper',
1039             'poche' => 'importFromPoche',
1040         );
1041
1042         if (! isset($providers[$from])) {
1043             $this->messages->add('e', _('Unknown import provider.'));
1044             Tools::redirect();
1045         }
1046
1047         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
1048         $targetFile = constant($targetDefinition);
1049
1050         if (! defined($targetDefinition)) {
1051             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
1052             Tools::redirect();
1053         }
1054
1055         if (! file_exists($targetFile)) {
1056             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
1057             Tools::redirect();
1058         }
1059
1060         $this->$providers[$from]($targetFile);
1061     }
1062
1063     /**
1064      * export poche entries in json
1065      * @return json all poche entries
1066      */
1067     public function export()
1068     {
1069         $entries = $this->store->retrieveAll($this->user->getId());
1070         echo $this->tpl->render('export.twig', array(
1071             'export' => Tools::renderJson($entries),
1072         ));
1073         Tools::logm('export view');
1074     }
1075
1076     /**
1077      * Checks online the latest version of poche and cache it
1078      * @param  string $which 'prod' or 'dev'
1079      * @return string        latest $which version
1080      */
1081     private function getPocheVersion($which = 'prod')
1082     {
1083         $cache_file = CACHE . '/' . $which;
1084
1085         # checks if the cached version file exists
1086         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
1087            $version = file_get_contents($cache_file);
1088         } else {
1089            $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
1090            file_put_contents($cache_file, $version, LOCK_EX);
1091         }
1092         return $version;
1093     }
1094
1095     public function generateToken()
1096     {
1097         if (ini_get('open_basedir') === '') {
1098             $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
1099         }
1100         else {
1101             $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
1102         }
1103
1104         $token = str_replace('+', '', $token);
1105         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
1106         $currentConfig = $_SESSION['poche_user']->config;
1107         $currentConfig['token'] = $token;
1108         $_SESSION['poche_user']->setConfig($currentConfig);
1109     }
1110
1111     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
1112     {
1113         $allowed_types = array('home', 'fav', 'archive', 'tag');
1114         $config = $this->store->getConfigUser($user_id);
1115
1116         if (!in_array($type, $allowed_types) ||
1117             $token != $config['token']) {
1118             die(_('Uh, there is a problem while generating feeds.'));
1119         }
1120         // Check the token
1121
1122         $feed = new FeedWriter(RSS2);
1123         $feed->setTitle('wallabag — ' . $type . ' feed');
1124         $feed->setLink(Tools::getPocheUrl());
1125         $feed->setChannelElement('updated', date(DATE_RSS , time()));
1126         $feed->setChannelElement('author', 'wallabag');
1127
1128         if ($type == 'tag') {
1129             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
1130         }
1131         else {
1132             $entries = $this->store->getEntriesByView($type, $user_id);
1133         }
1134
1135         if (count($entries) > 0) {
1136             foreach ($entries as $entry) {
1137                 $newItem = $feed->createNewItem();
1138                 $newItem->setTitle($entry['title']);
1139                 $newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1140                 $newItem->setDate(time());
1141                 $newItem->setDescription($entry['content']);
1142                 $feed->addItem($newItem);
1143             }
1144         }
1145
1146         $feed->genarateFeed();
1147         exit;
1148     }
1149
1150     public function emptyCache() {
1151         $files = new RecursiveIteratorIterator(
1152             new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
1153             RecursiveIteratorIterator::CHILD_FIRST
1154         );
1155
1156         foreach ($files as $fileinfo) {
1157             $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
1158             $todo($fileinfo->getRealPath());
1159         }
1160
1161         Tools::logm('empty cache');
1162         $this->messages->add('s', _('Cache deleted.'));
1163         Tools::redirect();
1164     }
1165 }