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