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         return $themes;
 311     }
 312
 313     public function getLanguage() {
 314         return $this->currentLanguage;
 315     }
 316
 317     public function getInstalledLanguages() {
 318         $handle = opendir(LOCALE);
 319         $languages = array();
 320
 321         while (($language = readdir($handle)) !== false) {
 322             # Languages are stored in a directory, so all directory names are languages
 323             # @todo move language installation data to database
 324             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.'))) {
 325                 continue;
 326             }
 327
 328             $current = false;
 329
 330             if ($language === $this->getLanguage()) {
 331                 $current = true;
 332             }
 333
 334             $languages[] = array('name' => $language, 'current' => $current);
 335         }
 336
 337         return $languages;
 338     }
 339
 340     public function getDefaultConfig()
 341     {
 342         return array(
 343             'pager' => PAGINATION,
 344             'language' => LANG,
 345             'theme' => DEFAULT_THEME
 346         );
 347     }
 348
 349     protected function getPageContent(Url $url)
 350     {
 351         // Saving and clearing context
 352         $REAL = array();
 353         foreach( $GLOBALS as $key => $value ) {
 354             if( $key != "GLOBALS" && $key != "_SESSION" ) {
 355                 $GLOBALS[$key] = array();
 356                 $REAL[$key] = $value;
 357             }
 358         }
 359         // Saving and clearing session
 360         $REAL_SESSION = array();
 361         foreach( $_SESSION as $key => $value ) {
 362             $REAL_SESSION[$key] = $value;
 363             unset($_SESSION[$key]);
 364         }
 365
 366         // Running code in different context
 367         $scope = function() {
 368             extract( func_get_arg(1) );
 369             $_GET = $_REQUEST = array(
 370                         "url" => $url->getUrl(),
 371                         "max" => 5,
 372                         "links" => "preserve",
 373                         "exc" => "",
 374                         "format" => "json",
 375                         "submit" => "Create Feed"
 376             );
 377             ob_start();
 378             require func_get_arg(0);
 379             $json = ob_get_flush();
 380             return $json;
 381         };
 382         $json = $scope( "inc/3rdparty/makefulltextfeed.php", array("url" => $url) );
 383
 384         // Clearing and restoring context
 385         foreach( $GLOBALS as $key => $value ) {
 386             if( $key != "GLOBALS" && $key != "_SESSION" ) {
 387                 unset($GLOBALS[$key]);
 388             }
 389         }
 390         foreach( $REAL as $key => $value ) {
 391             $GLOBALS[$key] = $value;
 392         }
 393         // Clearing and restoring session
 394         foreach( $_SESSION as $key => $value ) {
 395             unset($_SESSION[$key]);
 396         }
 397         foreach( $REAL_SESSION as $key => $value ) {
 398             $_SESSION[$key] = $value;
 399         }
 400         return json_decode($json, true);
 401     }
 402
 403     /**
 404      * Call action (mark as fav, archive, delete, etc.)
 405      */
 406     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE)
 407     {
 408         switch ($action)
 409         {
 410             case 'add':
 411                 $content = $this->getPageContent($url);
 412                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 413                 $body = $content['rss']['channel']['item']['description'];
 414
 415                 //search for possible duplicate if not in import mode
 416                 if (!$import) {
 417                     $duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
 418                 }
 419
 420                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 421                     Tools::logm('add link ' . $url->getUrl());
 422                     $sequence = '';
 423                     if (STORAGE == 'postgres') {
 424                         $sequence = 'entries_id_seq';
 425                     }
 426                     $last_id = $this->store->getLastId($sequence);
 427                     if (DOWNLOAD_PICTURES) {
 428                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 429                         Tools::logm('updating content article');
 430                         $this->store->updateContent($last_id, $content, $this->user->getId());
 431                     }
 432
 433                     if ($duplicate != NULL) {
 434                         // 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
 435                         Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
 436                         // 1) - preserve tags and favorite, then drop old entry
 437                         $this->store->reassignTags($duplicate['id'], $last_id);
 438                         if ($duplicate['is_fav']) {
 439                           $this->store->favoriteById($last_id, $this->user->getId());
 440                         }
 441                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 442                           Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
 443                         }
 444                     }
 445
 446                     if (!$import) {
 447                         $this->messages->add('s', _('the link has been added successfully'));
 448                     }
 449                 }
 450                 else {
 451                     if (!$import) {
 452                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 453                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 454                     }
 455                 }
 456
 457                 if (!$import) {
 458                     if ($autoclose == TRUE) {
 459                       Tools::redirect('?view=home');
 460                     } else {
 461                       Tools::redirect('?view=home&closewin=true');
 462                     }
 463                 }
 464                 break;
 465             case 'delete':
 466                 $msg = 'delete link #' . $id;
 467                 if ($this->store->deleteById($id, $this->user->getId())) {
 468                     if (DOWNLOAD_PICTURES) {
 469                         remove_directory(ABS_PATH . $id);
 470                     }
 471                     $this->messages->add('s', _('the link has been deleted successfully'));
 472                 }
 473                 else {
 474                     $this->messages->add('e', _('the link wasn\'t deleted'));
 475                     $msg = 'error : can\'t delete link #' . $id;
 476                 }
 477                 Tools::logm($msg);
 478                 Tools::redirect('?');
 479                 break;
 480             case 'toggle_fav' :
 481                 $this->store->favoriteById($id, $this->user->getId());
 482                 Tools::logm('mark as favorite link #' . $id);
 483                 if (!$import) {
 484                     Tools::redirect();
 485                 }
 486                 break;
 487             case 'toggle_archive' :
 488                 $this->store->archiveById($id, $this->user->getId());
 489                 Tools::logm('archive link #' . $id);
 490                 if (!$import) {
 491                     Tools::redirect();
 492                 }
 493                 break;
 494             case 'archive_all' :
 495                 $this->store->archiveAll($this->user->getId());
 496                 Tools::logm('archive all links');
 497                 if (!$import) {
 498                     Tools::redirect();
 499                 }
 500                 break;
 501             case 'add_tag' :
 502                 $tags = explode(',', $_POST['value']);
 503                 $entry_id = $_POST['entry_id'];
 504                 $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 505                 if (!$entry) {
 506                     $this->messages->add('e', _('Article not found!'));
 507                     Tools::logm('error : article not found');
 508                     Tools::redirect();
 509                 }
 510                 foreach($tags as $key => $tag_value) {
 511                     $value = trim($tag_value);
 512                     $tag = $this->store->retrieveTagByValue($value);
 513
 514                     if (is_null($tag)) {
 515                         # we create the tag
 516                         $tag = $this->store->createTag($value);
 517                         $sequence = '';
 518                         if (STORAGE == 'postgres') {
 519                             $sequence = 'tags_id_seq';
 520                         }
 521                         $tag_id = $this->store->getLastId($sequence);
 522                     }
 523                     else {
 524                         $tag_id = $tag['id'];
 525                     }
 526
 527                     # we assign the tag to the article
 528                     $this->store->setTagToEntry($tag_id, $entry_id);
 529                 }
 530                 Tools::redirect();
 531                 break;
 532             case 'remove_tag' :
 533                 $tag_id = $_GET['tag_id'];
 534                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 535                 if (!$entry) {
 536                     $this->messages->add('e', _('Article not found!'));
 537                     Tools::logm('error : article not found');
 538                     Tools::redirect();
 539                 }
 540                 $this->store->removeTagForEntry($id, $tag_id);
 541                 Tools::redirect();
 542                 break;
 543             default:
 544                 break;
 545         }
 546     }
 547
 548     function displayView($view, $id = 0)
 549     {
 550         $tpl_vars = array();
 551
 552         switch ($view)
 553         {
 554             case 'config':
 555                 $dev = trim($this->getPocheVersion('dev'));
 556                 $prod = trim($this->getPocheVersion('prod'));
 557                 $compare_dev = version_compare(POCHE, $dev);
 558                 $compare_prod = version_compare(POCHE, $prod);
 559                 $themes = $this->getInstalledThemes();
 560                 $languages = $this->getInstalledLanguages();
 561                 $token = $this->user->getConfigValue('token');
 562                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 563                 $tpl_vars = array(
 564                     'themes' => $themes,
 565                     'languages' => $languages,
 566                     'dev' => $dev,
 567                     'prod' => $prod,
 568                     'compare_dev' => $compare_dev,
 569                     'compare_prod' => $compare_prod,
 570                     'token' => $token,
 571                     'user_id' => $this->user->getId(),
 572                     'http_auth' => $http_auth,
 573                 );
 574                 Tools::logm('config view');
 575                 break;
 576             case 'edit-tags':
 577                 # tags
 578                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 579                 if (!$entry) {
 580                     $this->messages->add('e', _('Article not found!'));
 581                     Tools::logm('error : article not found');
 582                     Tools::redirect();
 583                 }
 584                 $tags = $this->store->retrieveTagsByEntry($id);
 585                 $tpl_vars = array(
 586                     'entry_id' => $id,
 587                     'tags' => $tags,
 588                 );
 589                 break;
 590             case 'tag':
 591                 $entries = $this->store->retrieveEntriesByTag($id, $this->user->getId());
 592                 $tag = $this->store->retrieveTag($id, $this->user->getId());
 593                 $tpl_vars = array(
 594                     'tag' => $tag,
 595                     'entries' => $entries,
 596                 );
 597                 break;
 598             case 'tags':
 599                 $token = $this->user->getConfigValue('token');
 600                 $tags = $this->store->retrieveAllTags($this->user->getId());
 601                 $tpl_vars = array(
 602                     'token' => $token,
 603                     'user_id' => $this->user->getId(),
 604                     'tags' => $tags,
 605                 );
 606                 break;
 607             case 'view':
 608                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 609                 if ($entry != NULL) {
 610                     Tools::logm('view link #' . $id);
 611                     $content = $entry['content'];
 612                     if (function_exists('tidy_parse_string')) {
 613                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 614                         $tidy->cleanRepair();
 615                         $content = $tidy->value;
 616                     }
 617
 618                     # flattr checking
 619                     $flattr = new FlattrItem();
 620                     $flattr->checkItem($entry['url'], $entry['id']);
 621
 622                     # tags
 623                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 624
 625                     $tpl_vars = array(
 626                         'entry' => $entry,
 627                         'content' => $content,
 628                         'flattr' => $flattr,
 629                         'tags' => $tags
 630                     );
 631                 }
 632                 else {
 633                     Tools::logm('error in view call : entry is null');
 634                 }
 635                 break;
 636             default: # home, favorites and archive views
 637                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 638                 $tpl_vars = array(
 639                     'entries' => '',
 640                     'page_links' => '',
 641                     'nb_results' => '',
 642                 );
 643
 644                 if (count($entries) > 0) {
 645                     $this->pagination->set_total(count($entries));
 646                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 647                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&'));
 648                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 649                     $tpl_vars['entries'] = $datas;
 650                     $tpl_vars['page_links'] = $page_links;
 651                     $tpl_vars['nb_results'] = count($entries);
 652                 }
 653                 Tools::logm('display ' . $view . ' view');
 654                 break;
 655         }
 656
 657         return $tpl_vars;
 658     }
 659
 660     /**
 661      * update the password of the current user.
 662      * if MODE_DEMO is TRUE, the password can't be updated.
 663      * @todo add the return value
 664      * @todo set the new password in function header like this updatePassword($newPassword)
 665      * @return boolean
 666      */
 667     public function updatePassword()
 668     {
 669         if (MODE_DEMO) {
 670             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 671             Tools::logm('in demo mode, you can\'t do this');
 672             Tools::redirect('?view=config');
 673         }
 674         else {
 675             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 676                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 677                     $this->messages->add('s', _('your password has been updated'));
 678                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 679                     Session::logout();
 680                     Tools::logm('password updated');
 681                     Tools::redirect();
 682                 }
 683                 else {
 684                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 685                     Tools::redirect('?view=config');
 686                 }
 687             }
 688         }
 689     }
 690
 691     public function updateTheme()
 692     {
 693         # no data
 694         if (empty($_POST['theme'])) {
 695         }
 696
 697         # we are not going to change it to the current theme...
 698         if ($_POST['theme'] == $this->getTheme()) {
 699             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 700             Tools::redirect('?view=config');
 701         }
 702
 703         $themes = $this->getInstalledThemes();
 704         $actualTheme = false;
 705
 706         foreach (array_keys($themes) as $theme) {
 707             if ($theme == $_POST['theme']) {
 708                 $actualTheme = true;
 709                 break;
 710             }
 711         }
 712
 713         if (! $actualTheme) {
 714             $this->messages->add('e', _('that theme does not seem to be installed'));
 715             Tools::redirect('?view=config');
 716         }
 717
 718         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 719         $this->messages->add('s', _('you have changed your theme preferences'));
 720
 721         $currentConfig = $_SESSION['poche_user']->config;
 722         $currentConfig['theme'] = $_POST['theme'];
 723
 724         $_SESSION['poche_user']->setConfig($currentConfig);
 725
 726         Tools::redirect('?view=config');
 727     }
 728
 729     public function updateLanguage()
 730     {
 731         # no data
 732         if (empty($_POST['language'])) {
 733         }
 734
 735         # we are not going to change it to the current language...
 736         if ($_POST['language'] == $this->getLanguage()) {
 737             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 738             Tools::redirect('?view=config');
 739         }
 740
 741         $languages = $this->getInstalledLanguages();
 742         $actualLanguage = false;
 743
 744         foreach ($languages as $language) {
 745             if ($language['name'] == $_POST['language']) {
 746                 $actualLanguage = true;
 747                 break;
 748             }
 749         }
 750
 751         if (! $actualLanguage) {
 752             $this->messages->add('e', _('that language does not seem to be installed'));
 753             Tools::redirect('?view=config');
 754         }
 755
 756         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 757         $this->messages->add('s', _('you have changed your language preferences'));
 758
 759         $currentConfig = $_SESSION['poche_user']->config;
 760         $currentConfig['language'] = $_POST['language'];
 761
 762         $_SESSION['poche_user']->setConfig($currentConfig);
 763
 764         Tools::redirect('?view=config');
 765     }
 766
 767     /**
 768      * get credentials from differents sources
 769      * it redirects the user to the $referer link
 770      * @return array
 771      */
 772     private function credentials() {
 773         if(isset($_SERVER['PHP_AUTH_USER'])) {
 774             return array($_SERVER['PHP_AUTH_USER'],'php_auth',true);
 775         }
 776         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 777             return array($_POST['login'],$_POST['password'],false);
 778         }
 779         if(isset($_SERVER['REMOTE_USER'])) {
 780             return array($_SERVER['REMOTE_USER'],'http_auth',true);
 781         }
 782
 783         return array(false,false,false);
 784     }
 785
 786     /**
 787      * checks if login & password are correct and save the user in session.
 788      * it redirects the user to the $referer link
 789      * @param  string $referer the url to redirect after login
 790      * @todo add the return value
 791      * @return boolean
 792      */
 793     public function login($referer)
 794     {
 795         list($login,$password,$isauthenticated)=$this->credentials();
 796         if($login === false || $password === false) {
 797             $this->messages->add('e', _('login failed: you have to fill all fields'));
 798             Tools::logm('login failed');
 799             Tools::redirect();
 800         }
 801         if (!empty($login) && !empty($password)) {
 802             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 803             if ($user != array()) {
 804                 # Save login into Session
 805                 $longlastingsession = isset($_POST['longlastingsession']);
 806                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 807                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 808                 $this->messages->add('s', _('welcome to your wallabag'));
 809                 Tools::logm('login successful');
 810                 Tools::redirect($referer);
 811             }
 812             $this->messages->add('e', _('login failed: bad login or password'));
 813             Tools::logm('login failed');
 814             Tools::redirect();
 815         }
 816     }
 817
 818     /**
 819      * log out the poche user. It cleans the session.
 820      * @todo add the return value
 821      * @return boolean
 822      */
 823     public function logout()
 824     {
 825         $this->user = array();
 826         Session::logout();
 827         Tools::logm('logout');
 828         Tools::redirect();
 829     }
 830
 831     /**
 832      * import from Instapaper. poche needs a ./instapaper-export.html file
 833      * @todo add the return value
 834      * @param string $targetFile the file used for importing
 835      * @return boolean
 836      */
 837     private function importFromInstapaper($targetFile)
 838     {
 839         # TODO gestion des articles favs
 840         $html = new simple_html_dom();
 841         $html->load_file($targetFile);
 842         Tools::logm('starting import from instapaper');
 843
 844         $read = 0;
 845         $errors = array();
 846         foreach($html->find('ol') as $ul)
 847         {
 848             foreach($ul->find('li') as $li)
 849             {
 850                 $a = $li->find('a');
 851                 $url = new Url(base64_encode($a[0]->href));
 852                 $this->action('add', $url, 0, TRUE);
 853                 if ($read == '1') {
 854                     $sequence = '';
 855                     if (STORAGE == 'postgres') {
 856                         $sequence = 'entries_id_seq';
 857                     }
 858                     $last_id = $this->store->getLastId($sequence);
 859                     $this->action('toggle_archive', $url, $last_id, TRUE);
 860                 }
 861             }
 862
 863             # the second <ol> is for read links
 864             $read = 1;
 865         }
 866         $this->messages->add('s', _('import from instapaper completed'));
 867         Tools::logm('import from instapaper completed');
 868         Tools::redirect();
 869     }
 870
 871     /**
 872      * import from Pocket. poche needs a ./ril_export.html file
 873      * @todo add the return value
 874      * @param string $targetFile the file used for importing
 875      * @return boolean
 876      */
 877     private function importFromPocket($targetFile)
 878     {
 879         # TODO gestion des articles favs
 880         $html = new simple_html_dom();
 881         $html->load_file($targetFile);
 882         Tools::logm('starting import from pocket');
 883
 884         $read = 0;
 885         $errors = array();
 886         foreach($html->find('ul') as $ul)
 887         {
 888             foreach($ul->find('li') as $li)
 889             {
 890                 $a = $li->find('a');
 891                 $url = new Url(base64_encode($a[0]->href));
 892                 $this->action('add', $url, 0, TRUE);
 893                 if ($read == '1') {
 894                         $sequence = '';
 895                         if (STORAGE == 'postgres') {
 896                             $sequence = 'entries_id_seq';
 897                         }
 898                     $last_id = $this->store->getLastId($sequence);
 899                     $this->action('toggle_archive', $url, $last_id, TRUE);
 900                 }
 901             }
 902
 903             # the second <ul> is for read links
 904             $read = 1;
 905         }
 906         $this->messages->add('s', _('import from pocket completed'));
 907         Tools::logm('import from pocket completed');
 908         Tools::redirect();
 909     }
 910
 911     /**
 912      * import from Readability. poche needs a ./readability file
 913      * @todo add the return value
 914      * @param string $targetFile the file used for importing
 915      * @return boolean
 916      */
 917     private function importFromReadability($targetFile)
 918     {
 919         # TODO gestion des articles lus / favs
 920         $str_data = file_get_contents($targetFile);
 921         $data = json_decode($str_data,true);
 922         Tools::logm('starting import from Readability');
 923         $count = 0;
 924         foreach ($data as $key => $value) {
 925             $url = NULL;
 926             $favorite = FALSE;
 927             $archive = FALSE;
 928             foreach ($value as $item) {
 929                 foreach ($item as $attr => $value) {
 930                     if ($attr == 'article__url') {
 931                         $url = new Url(base64_encode($value));
 932                     }
 933                     $sequence = '';
 934                     if (STORAGE == 'postgres') {
 935                         $sequence = 'entries_id_seq';
 936                     }
 937                     if ($value == 'true') {
 938                         if ($attr == 'favorite') {
 939                             $favorite = TRUE;
 940                         }
 941                         if ($attr == 'archive') {
 942                             $archive = TRUE;
 943                         }
 944                     }
 945                 }
 946
 947                 # we can add the url
 948                 if (!is_null($url) && $url->isCorrect()) {
 949                     $this->action('add', $url, 0, TRUE);
 950                     $count++;
 951                     if ($favorite) {
 952                         $last_id = $this->store->getLastId($sequence);
 953                         $this->action('toggle_fav', $url, $last_id, TRUE);
 954                     }
 955                     if ($archive) {
 956                         $last_id = $this->store->getLastId($sequence);
 957                         $this->action('toggle_archive', $url, $last_id, TRUE);
 958                     }
 959                 }
 960             }
 961         }
 962         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 963         Tools::logm('import from Readability completed');
 964         Tools::redirect();
 965     }
 966
 967     /**
 968      * import from Poche exported file
 969      * @param string $targetFile the file used for importing
 970      * @return boolean
 971      */
 972     private function importFromPoche($targetFile)
 973     {
 974         $str_data = file_get_contents($targetFile);
 975         $data = json_decode($str_data,true);
 976         Tools::logm('starting import from Poche');
 977
 978
 979         $sequence = '';
 980         if (STORAGE == 'postgres') {
 981             $sequence = 'entries_id_seq';
 982         }
 983
 984         $count = 0;
 985         foreach ($data as $value) {
 986
 987             $url = new Url(base64_encode($value['url']));
 988             $favorite = ($value['is_fav'] == -1);
 989             $archive = ($value['is_read'] == -1);
 990
 991             # we can add the url
 992             if (!is_null($url) && $url->isCorrect()) {
 993
 994                 $this->action('add', $url, 0, TRUE);
 995
 996                 $count++;
 997                 if ($favorite) {
 998                     $last_id = $this->store->getLastId($sequence);
 999                     $this->action('toggle_fav', $url, $last_id, TRUE);
1000                 }
1001                 if ($archive) {
1002                     $last_id = $this->store->getLastId($sequence);
1003                     $this->action('toggle_archive', $url, $last_id, TRUE);
1004                 }
1005             }
1006
1007         }
1008         $this->messages->add('s', _('import from Poche completed. ' . $count . ' new links.'));
1009         Tools::logm('import from Poche completed');
1010         Tools::redirect();
1011     }
1012
1013     /**
1014      * import datas into your poche
1015      * @param  string $from name of the service to import : pocket, instapaper or readability
1016      * @todo add the return value
1017      * @return boolean
1018      */
1019     public function import($from)
1020     {
1021         $providers = array(
1022             'pocket' => 'importFromPocket',
1023             'readability' => 'importFromReadability',
1024             'instapaper' => 'importFromInstapaper',
1025             'poche' => 'importFromPoche',
1026         );
1027
1028         if (! isset($providers[$from])) {
1029             $this->messages->add('e', _('Unknown import provider.'));
1030             Tools::redirect();
1031         }
1032
1033         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
1034         $targetFile = constant($targetDefinition);
1035
1036         if (! defined($targetDefinition)) {
1037             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
1038             Tools::redirect();
1039         }
1040
1041         if (! file_exists($targetFile)) {
1042             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
1043             Tools::redirect();
1044         }
1045
1046         $this->$providers[$from]($targetFile);
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     }
1096
1097     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
1098     {
1099         $allowed_types = array('home', 'fav', 'archive', 'tag');
1100         $config = $this->store->getConfigUser($user_id);
1101
1102         if (!in_array($type, $allowed_types) ||
1103             $token != $config['token']) {
1104             die(_('Uh, there is a problem while generating feeds.'));
1105         }
1106         // Check the token
1107
1108         $feed = new FeedWriter(RSS2);
1109         $feed->setTitle('wallabag — ' . $type . ' feed');
1110         $feed->setLink(Tools::getPocheUrl());
1111         $feed->setChannelElement('updated', date(DATE_RSS , time()));
1112         $feed->setChannelElement('author', 'wallabag');
1113
1114         if ($type == 'tag') {
1115             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
1116         }
1117         else {
1118             $entries = $this->store->getEntriesByView($type, $user_id);
1119         }
1120
1121         if (count($entries) > 0) {
1122             foreach ($entries as $entry) {
1123                 $newItem = $feed->createNewItem();
1124                 $newItem->setTitle($entry['title']);
1125                 $newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1126                 $newItem->setDate(time());
1127                 $newItem->setDescription($entry['content']);
1128                 $feed->addItem($newItem);
1129             }
1130         }
1131
1132         $feed->genarateFeed();
1133         exit;
1134     }
1135
1136     public function emptyCache() {
1137         $files = new RecursiveIteratorIterator(
1138             new RecursiveDirectoryIterator(CACHE, RecursiveDirectoryIterator::SKIP_DOTS),
1139             RecursiveIteratorIterator::CHILD_FIRST
1140         );
1141
1142         foreach ($files as $fileinfo) {
1143             $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
1144             $todo($fileinfo->getRealPath());
1145         }
1146
1147         Tools::logm('empty cache');
1148         $this->messages->add('s', _('Cache deleted.'));
1149         Tools::redirect();
1150     }
1151 }