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