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     protected function getPageContent(Url $url)
 330     {
 331         $options = array('http' => array('user_agent' => 'poche'));
 332         if (isset($_SERVER['AUTH_TYPE']) && "basic" === strtolower($_SERVER['AUTH_TYPE'])) {
 333             $options['http']['header'] = sprintf(
 334                 "Authorization: Basic %s",
 335                 base64_encode(
 336                     sprintf('%s:%s', $_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'])
 337                 )
 338             );
 339         }
 340         $context = stream_context_create($options);
 341         $json = file_get_contents(Tools::getPocheUrl() . '/inc/3rdparty/makefulltextfeed.php?url='.urlencode($url->getUrl()).'&max=5&links=preserve&exc=&format=json&submit=Create+Feed', false, $context);
 342         return json_decode($json, true);
 343     }
 344
 345     /**
 346      * Call action (mark as fav, archive, delete, etc.)
 347      */
 348     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE)
 349     {
 350         switch ($action)
 351         {
 352             case 'add':
 353                 $content = $this->getPageContent($url);
 354                 $title = $content['rss']['channel']['item']['title'];
 355                 $body = $content['rss']['channel']['item']['description'];
 356
 357                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 358                     Tools::logm('add link ' . $url->getUrl());
 359                     $sequence = '';
 360                     if (STORAGE == 'postgres') {
 361                         $sequence = 'entries_id_seq';
 362                     }
 363                     $last_id = $this->store->getLastId($sequence);
 364                     if (DOWNLOAD_PICTURES) {
 365                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 366                         Tools::logm('updating content article');
 367                         $this->store->updateContent($last_id, $content, $this->user->getId());
 368                     }
 369                     if (!$import) {
 370                         $this->messages->add('s', _('the link has been added successfully'));
 371                     }
 372                 }
 373                 else {
 374                     if (!$import) {
 375                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 376                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 377                     }
 378                 }
 379
 380                 if (!$import) {
 381                     if ($autoclose == TRUE) {
 382                       Tools::redirect('?view=home');
 383                     } else {
 384                       Tools::redirect('?view=home&closewin=true');
 385                     }
 386                 }
 387                 break;
 388             case 'delete':
 389                 $msg = 'delete link #' . $id;
 390                 if ($this->store->deleteById($id, $this->user->getId())) {
 391                     if (DOWNLOAD_PICTURES) {
 392                         remove_directory(ABS_PATH . $id);
 393                     }
 394                     $this->messages->add('s', _('the link has been deleted successfully'));
 395                 }
 396                 else {
 397                     $this->messages->add('e', _('the link wasn\'t deleted'));
 398                     $msg = 'error : can\'t delete link #' . $id;
 399                 }
 400                 Tools::logm($msg);
 401                 Tools::redirect('?');
 402                 break;
 403             case 'toggle_fav' :
 404                 $this->store->favoriteById($id, $this->user->getId());
 405                 Tools::logm('mark as favorite link #' . $id);
 406                 if (!$import) {
 407                     Tools::redirect();
 408                 }
 409                 break;
 410             case 'toggle_archive' :
 411                 $this->store->archiveById($id, $this->user->getId());
 412                 Tools::logm('archive link #' . $id);
 413                 if (!$import) {
 414                     Tools::redirect();
 415                 }
 416                 break;
 417             case 'add_tag' :
 418                 $tags = explode(',', $_POST['value']);
 419                 $entry_id = $_POST['entry_id'];
 420                 foreach($tags as $key => $tag_value) {
 421                     $value = trim($tag_value);
 422                     $tag = $this->store->retrieveTagByValue($value);
 423
 424                     if (is_null($tag)) {
 425                         # we create the tag
 426                         $tag = $this->store->createTag($value);
 427                         $sequence = '';
 428                         if (STORAGE == 'postgres') {
 429                             $sequence = 'tags_id_seq';
 430                         }
 431                         $tag_id = $this->store->getLastId($sequence);
 432                     }
 433                     else {
 434                         $tag_id = $tag['id'];
 435                     }
 436
 437                     # we assign the tag to the article
 438                     $this->store->setTagToEntry($tag_id, $entry_id);
 439                 }
 440                 Tools::redirect();
 441                 break;
 442             case 'remove_tag' :
 443                 $tag_id = $_GET['tag_id'];
 444                 $this->store->removeTagForEntry($id, $tag_id);
 445                 Tools::redirect();
 446                 break;
 447             default:
 448                 break;
 449         }
 450     }
 451
 452     function displayView($view, $id = 0)
 453     {
 454         $tpl_vars = array();
 455
 456         switch ($view)
 457         {
 458             case 'config':
 459                 $dev = $this->getPocheVersion('dev');
 460                 $prod = $this->getPocheVersion('prod');
 461                 $compare_dev = version_compare(POCHE, $dev);
 462                 $compare_prod = version_compare(POCHE, $prod);
 463                 $themes = $this->getInstalledThemes();
 464                 $languages = $this->getInstalledLanguages();
 465                 $token = $this->user->getConfigValue('token');
 466                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 467                 $tpl_vars = array(
 468                     'themes' => $themes,
 469                     'languages' => $languages,
 470                     'dev' => $dev,
 471                     'prod' => $prod,
 472                     'compare_dev' => $compare_dev,
 473                     'compare_prod' => $compare_prod,
 474                     'token' => $token,
 475                     'user_id' => $this->user->getId(),
 476                     'http_auth' => $http_auth,
 477                 );
 478                 Tools::logm('config view');
 479                 break;
 480             case 'edit-tags':
 481                 # tags
 482                 $tags = $this->store->retrieveTagsByEntry($id);
 483                 $tpl_vars = array(
 484                     'entry_id' => $id,
 485                     'tags' => $tags,
 486                 );
 487                 break;
 488             case 'tag':
 489                 $entries = $this->store->retrieveEntriesByTag($id);
 490                 $tag = $this->store->retrieveTag($id);
 491                 $tpl_vars = array(
 492                     'tag' => $tag,
 493                     'entries' => $entries,
 494                 );
 495                 break;
 496             case 'tags':
 497                 $token = $this->user->getConfigValue('token');
 498                 $tags = $this->store->retrieveAllTags();
 499                 $tpl_vars = array(
 500                     'token' => $token,
 501                     'user_id' => $this->user->getId(),
 502                     'tags' => $tags,
 503                 );
 504                 break;
 505             case 'view':
 506                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 507                 if ($entry != NULL) {
 508                     Tools::logm('view link #' . $id);
 509                     $content = $entry['content'];
 510                     if (function_exists('tidy_parse_string')) {
 511                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 512                         $tidy->cleanRepair();
 513                         $content = $tidy->value;
 514                     }
 515
 516                     # flattr checking
 517                     $flattr = new FlattrItem();
 518                     $flattr->checkItem($entry['url'], $entry['id']);
 519
 520                     # tags
 521                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 522
 523                     $tpl_vars = array(
 524                         'entry' => $entry,
 525                         'content' => $content,
 526                         'flattr' => $flattr,
 527                         'tags' => $tags
 528                     );
 529                 }
 530                 else {
 531                     Tools::logm('error in view call : entry is null');
 532                 }
 533                 break;
 534             default: # home, favorites and archive views
 535                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 536                 $tpl_vars = array(
 537                     'entries' => '',
 538                     'page_links' => '',
 539                     'nb_results' => '',
 540                 );
 541
 542                 if (count($entries) > 0) {
 543                     $this->pagination->set_total(count($entries));
 544                     $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
 545                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 546                     $tpl_vars['entries'] = $datas;
 547                     $tpl_vars['page_links'] = $page_links;
 548                     $tpl_vars['nb_results'] = count($entries);
 549                 }
 550                 Tools::logm('display ' . $view . ' view');
 551                 break;
 552         }
 553
 554         return $tpl_vars;
 555     }
 556
 557     /**
 558      * update the password of the current user.
 559      * if MODE_DEMO is TRUE, the password can't be updated.
 560      * @todo add the return value
 561      * @todo set the new password in function header like this updatePassword($newPassword)
 562      * @return boolean
 563      */
 564     public function updatePassword()
 565     {
 566         if (MODE_DEMO) {
 567             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 568             Tools::logm('in demo mode, you can\'t do this');
 569             Tools::redirect('?view=config');
 570         }
 571         else {
 572             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 573                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 574                     $this->messages->add('s', _('your password has been updated'));
 575                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 576                     Session::logout();
 577                     Tools::logm('password updated');
 578                     Tools::redirect();
 579                 }
 580                 else {
 581                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 582                     Tools::redirect('?view=config');
 583                 }
 584             }
 585         }
 586     }
 587
 588     public function updateTheme()
 589     {
 590         # no data
 591         if (empty($_POST['theme'])) {
 592         }
 593
 594         # we are not going to change it to the current theme...
 595         if ($_POST['theme'] == $this->getTheme()) {
 596             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 597             Tools::redirect('?view=config');
 598         }
 599
 600         $themes = $this->getInstalledThemes();
 601         $actualTheme = false;
 602
 603         foreach ($themes as $theme) {
 604             if ($theme['name'] == $_POST['theme']) {
 605                 $actualTheme = true;
 606                 break;
 607             }
 608         }
 609
 610         if (! $actualTheme) {
 611             $this->messages->add('e', _('that theme does not seem to be installed'));
 612             Tools::redirect('?view=config');
 613         }
 614
 615         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 616         $this->messages->add('s', _('you have changed your theme preferences'));
 617
 618         $currentConfig = $_SESSION['poche_user']->config;
 619         $currentConfig['theme'] = $_POST['theme'];
 620
 621         $_SESSION['poche_user']->setConfig($currentConfig);
 622
 623         Tools::redirect('?view=config');
 624     }
 625
 626     public function updateLanguage()
 627     {
 628         # no data
 629         if (empty($_POST['language'])) {
 630         }
 631
 632         # we are not going to change it to the current language...
 633         if ($_POST['language'] == $this->getLanguage()) {
 634             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 635             Tools::redirect('?view=config');
 636         }
 637
 638         $languages = $this->getInstalledLanguages();
 639         $actualLanguage = false;
 640
 641         foreach ($languages as $language) {
 642             if ($language['name'] == $_POST['language']) {
 643                 $actualLanguage = true;
 644                 break;
 645             }
 646         }
 647
 648         if (! $actualLanguage) {
 649             $this->messages->add('e', _('that language does not seem to be installed'));
 650             Tools::redirect('?view=config');
 651         }
 652
 653         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 654         $this->messages->add('s', _('you have changed your language preferences'));
 655
 656         $currentConfig = $_SESSION['poche_user']->config;
 657         $currentConfig['language'] = $_POST['language'];
 658
 659         $_SESSION['poche_user']->setConfig($currentConfig);
 660
 661         Tools::redirect('?view=config');
 662     }
 663
 664     /**
 665      * get credentials from differents sources
 666      * it redirects the user to the $referer link
 667      * @return array
 668      */
 669     private function credentials() {
 670         if(isset($_SERVER['PHP_AUTH_USER'])) {
 671             return array($_SERVER['PHP_AUTH_USER'],'php_auth');
 672         }
 673         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 674             return array($_POST['login'],$_POST['password']);
 675         }
 676         if(isset($_SERVER['REMOTE_USER'])) {
 677             return array($_SERVER['REMOTE_USER'],'http_auth');
 678         }
 679
 680         return array(false,false);
 681      }
 682
 683     /**
 684      * checks if login & password are correct and save the user in session.
 685      * it redirects the user to the $referer link
 686      * @param  string $referer the url to redirect after login
 687      * @todo add the return value
 688      * @return boolean
 689      */
 690     public function login($referer)
 691     {
 692         list($login,$password)=$this->credentials();
 693         if($login === false || $password === false) {
 694             $this->messages->add('e', _('login failed: you have to fill all fields'));
 695             Tools::logm('login failed');
 696             Tools::redirect();
 697         }
 698         if (!empty($login) && !empty($password)) {
 699             $user = $this->store->login($login, Tools::encodeString($password . $login));
 700             if ($user != array()) {
 701                 # Save login into Session
 702                 $longlastingsession = isset($_POST['longlastingsession']);
 703                 Session::login($user['username'], $user['password'], $login, Tools::encodeString($password . $login), $longlastingsession, array('poche_user' => new User($user)));
 704                 $this->messages->add('s', _('welcome to your poche'));
 705                 Tools::logm('login successful');
 706                 Tools::redirect($referer);
 707             }
 708             $this->messages->add('e', _('login failed: bad login or password'));
 709             Tools::logm('login failed');
 710             Tools::redirect();
 711         }
 712     }
 713
 714     /**
 715      * log out the poche user. It cleans the session.
 716      * @todo add the return value
 717      * @return boolean
 718      */
 719     public function logout()
 720     {
 721         $this->user = array();
 722         Session::logout();
 723         $this->messages->add('s', _('see you soon!'));
 724         Tools::logm('logout');
 725         Tools::redirect();
 726     }
 727
 728     /**
 729      * import from Instapaper. poche needs a ./instapaper-export.html file
 730      * @todo add the return value
 731      * @param string $targetFile the file used for importing
 732      * @return boolean
 733      */
 734     private function importFromInstapaper($targetFile)
 735     {
 736         # TODO gestion des articles favs
 737         $html = new simple_html_dom();
 738         $html->load_file($targetFile);
 739         Tools::logm('starting import from instapaper');
 740
 741         $read = 0;
 742         $errors = array();
 743         foreach($html->find('ol') as $ul)
 744         {
 745             foreach($ul->find('li') as $li)
 746             {
 747                 $a = $li->find('a');
 748                 $url = new Url(base64_encode($a[0]->href));
 749                 $this->action('add', $url, 0, TRUE);
 750                 if ($read == '1') {
 751                     $sequence = '';
 752                     if (STORAGE == 'postgres') {
 753                         $sequence = 'entries_id_seq';
 754                     }
 755                     $last_id = $this->store->getLastId($sequence);
 756                     $this->action('toggle_archive', $url, $last_id, TRUE);
 757                 }
 758             }
 759
 760             # the second <ol> is for read links
 761             $read = 1;
 762         }
 763         $this->messages->add('s', _('import from instapaper completed'));
 764         Tools::logm('import from instapaper completed');
 765         Tools::redirect();
 766     }
 767
 768     /**
 769      * import from Pocket. poche needs a ./ril_export.html file
 770      * @todo add the return value
 771      * @param string $targetFile the file used for importing
 772      * @return boolean
 773      */
 774     private function importFromPocket($targetFile)
 775     {
 776         # TODO gestion des articles favs
 777         $html = new simple_html_dom();
 778         $html->load_file($targetFile);
 779         Tools::logm('starting import from pocket');
 780
 781         $read = 0;
 782         $errors = array();
 783         foreach($html->find('ul') as $ul)
 784         {
 785             foreach($ul->find('li') as $li)
 786             {
 787                 $a = $li->find('a');
 788                 $url = new Url(base64_encode($a[0]->href));
 789                 $this->action('add', $url, 0, TRUE);
 790                 if ($read == '1') {
 791                         $sequence = '';
 792                         if (STORAGE == 'postgres') {
 793                             $sequence = 'entries_id_seq';
 794                         }
 795                     $last_id = $this->store->getLastId($sequence);
 796                     $this->action('toggle_archive', $url, $last_id, TRUE);
 797                 }
 798             }
 799
 800             # the second <ul> is for read links
 801             $read = 1;
 802         }
 803         $this->messages->add('s', _('import from pocket completed'));
 804         Tools::logm('import from pocket completed');
 805         Tools::redirect();
 806     }
 807
 808     /**
 809      * import from Readability. poche needs a ./readability file
 810      * @todo add the return value
 811      * @param string $targetFile the file used for importing
 812      * @return boolean
 813      */
 814     private function importFromReadability($targetFile)
 815     {
 816         # TODO gestion des articles lus / favs
 817         $str_data = file_get_contents($targetFile);
 818         $data = json_decode($str_data,true);
 819         Tools::logm('starting import from Readability');
 820         $count = 0;
 821         foreach ($data as $key => $value) {
 822             $url = NULL;
 823             $favorite = FALSE;
 824             $archive = FALSE;
 825             foreach ($value as $item) {
 826                 foreach ($item as $attr => $value) {
 827                     if ($attr == 'article__url') {
 828                         $url = new Url(base64_encode($value));
 829                     }
 830                     $sequence = '';
 831                     if (STORAGE == 'postgres') {
 832                         $sequence = 'entries_id_seq';
 833                     }
 834                     if ($value == 'true') {
 835                         if ($attr == 'favorite') {
 836                             $favorite = TRUE;
 837                         }
 838                         if ($attr == 'archive') {
 839                             $archive = TRUE;
 840                         }
 841                     }
 842                 }
 843
 844                 # we can add the url
 845                 if (!is_null($url) && $url->isCorrect()) {
 846                     $this->action('add', $url, 0, TRUE);
 847                     $count++;
 848                     if ($favorite) {
 849                         $last_id = $this->store->getLastId($sequence);
 850                         $this->action('toggle_fav', $url, $last_id, TRUE);
 851                     }
 852                     if ($archive) {
 853                         $last_id = $this->store->getLastId($sequence);
 854                         $this->action('toggle_archive', $url, $last_id, TRUE);
 855                     }
 856                 }
 857             }
 858         }
 859         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 860         Tools::logm('import from Readability completed');
 861         Tools::redirect();
 862     }
 863
 864     /**
 865      * import from Poche exported file
 866      * @param string $targetFile the file used for importing
 867      * @return boolean
 868      */
 869     private function importFromPoche($targetFile)
 870     {
 871         $str_data = file_get_contents($targetFile);
 872         $data = json_decode($str_data,true);
 873         Tools::logm('starting import from Poche');
 874
 875
 876         $sequence = '';
 877         if (STORAGE == 'postgres') {
 878             $sequence = 'entries_id_seq';
 879         }
 880
 881         $count = 0;
 882         foreach ($data as $value) {
 883
 884             $url = new Url(base64_encode($value['url']));
 885             $favorite = ($value['is_fav'] == -1);
 886             $archive = ($value['is_read'] == -1);
 887
 888             # we can add the url
 889             if (!is_null($url) && $url->isCorrect()) {
 890
 891                 $this->action('add', $url, 0, TRUE);
 892
 893                 $count++;
 894                 if ($favorite) {
 895                     $last_id = $this->store->getLastId($sequence);
 896                     $this->action('toggle_fav', $url, $last_id, TRUE);
 897                 }
 898                 if ($archive) {
 899                     $last_id = $this->store->getLastId($sequence);
 900                     $this->action('toggle_archive', $url, $last_id, TRUE);
 901                 }
 902             }
 903
 904         }
 905         $this->messages->add('s', _('import from Poche completed. ' . $count . ' new links.'));
 906         Tools::logm('import from Poche completed');
 907         Tools::redirect();
 908     }
 909
 910     /**
 911      * import datas into your poche
 912      * @param  string $from name of the service to import : pocket, instapaper or readability
 913      * @todo add the return value
 914      * @return boolean
 915      */
 916     public function import($from)
 917     {
 918         $providers = array(
 919             'pocket' => 'importFromPocket',
 920             'readability' => 'importFromReadability',
 921             'instapaper' => 'importFromInstapaper',
 922             'poche' => 'importFromPoche',
 923         );
 924
 925         if (! isset($providers[$from])) {
 926             $this->messages->add('e', _('Unknown import provider.'));
 927             Tools::redirect();
 928         }
 929
 930         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
 931         $targetFile = constant($targetDefinition);
 932
 933         if (! defined($targetDefinition)) {
 934             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
 935             Tools::redirect();
 936         }
 937
 938         if (! file_exists($targetFile)) {
 939             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
 940             Tools::redirect();
 941         }
 942
 943         $this->$providers[$from]($targetFile);
 944     }
 945
 946     /**
 947      * export poche entries in json
 948      * @return json all poche entries
 949      */
 950     public function export()
 951     {
 952         $entries = $this->store->retrieveAll($this->user->getId());
 953         echo $this->tpl->render('export.twig', array(
 954             'export' => Tools::renderJson($entries),
 955         ));
 956         Tools::logm('export view');
 957     }
 958
 959     /**
 960      * Checks online the latest version of poche and cache it
 961      * @param  string $which 'prod' or 'dev'
 962      * @return string        latest $which version
 963      */
 964     private function getPocheVersion($which = 'prod')
 965     {
 966         $cache_file = CACHE . '/' . $which;
 967
 968         # checks if the cached version file exists
 969         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 970            $version = file_get_contents($cache_file);
 971         } else {
 972            $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 973            file_put_contents($cache_file, $version, LOCK_EX);
 974         }
 975         return $version;
 976     }
 977
 978     public function generateToken()
 979     {
 980         if (ini_get('open_basedir') === '') {
 981             $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
 982         }
 983         else {
 984             $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
 985         }
 986
 987         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 988         $currentConfig = $_SESSION['poche_user']->config;
 989         $currentConfig['token'] = $token;
 990         $_SESSION['poche_user']->setConfig($currentConfig);
 991     }
 992
 993     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
 994     {
 995         $allowed_types = array('home', 'fav', 'archive', 'tag');
 996         $config = $this->store->getConfigUser($user_id);
 997
 998         if (!in_array($type, $allowed_types) ||
 999             $token != $config['token']) {
1000             die(_('Uh, there is a problem while generating feeds.'));
1001         }
1002         // Check the token
1003
1004         $feed = new FeedWriter(RSS2);
1005         $feed->setTitle('poche - ' . $type . ' feed');
1006         $feed->setLink(Tools::getPocheUrl());
1007         $feed->setChannelElement('updated', date(DATE_RSS , time()));
1008         $feed->setChannelElement('author', 'poche');
1009
1010         if ($type == 'tag') {
1011             $entries = $this->store->retrieveEntriesByTag($tag_id);
1012         }
1013         else {
1014             $entries = $this->store->getEntriesByView($type, $user_id);
1015         }
1016
1017         if (count($entries) > 0) {
1018             foreach ($entries as $entry) {
1019                 $newItem = $feed->createNewItem();
1020                 $newItem->setTitle($entry['title']);
1021                 $newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1022                 $newItem->setDate(time());
1023                 $newItem->setDescription($entry['content']);
1024                 $feed->addItem($newItem);
1025             }
1026         }
1027
1028         $feed->genarateFeed();
1029         exit;
1030     }
1031 }