inc/poche/Poche.class.php

   1 <?php
   2 /**
   3  * poche, a read it later open source system
   4  *
   5  * @category   poche
   6  * @author     Nicolas Lœuillet <support@inthepoche.com>
   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 $installedThemes = array(
  28         'default' => array('requires' => array()),
  29         'dark' => array('requires' => array('default')),
  30         'dmagenta' => array('requires' => array('default')),
  31         'solarized' => array('requires' => array('default')),
  32         'solarized-dark' => array('requires' => array('default'))
  33     );
  34
  35     public function __construct()
  36     {
  37         if ($this->configFileIsAvailable()) {
  38             $this->init();
  39         }
  40
  41         if ($this->themeIsInstalled()) {
  42             $this->initTpl();
  43         }
  44
  45         if ($this->systemIsInstalled()) {
  46             $this->store = new Database();
  47             $this->messages = new Messages();
  48             # installation
  49             if (! $this->store->isInstalled()) {
  50                 $this->install();
  51             }
  52         }
  53     }
  54
  55     private function init()
  56     {
  57         Tools::initPhp();
  58         Session::$sessionName = 'poche';
  59         Session::init();
  60
  61         if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
  62             $this->user = $_SESSION['poche_user'];
  63         } else {
  64             # fake user, just for install & login screens
  65             $this->user = new User();
  66             $this->user->setConfig($this->getDefaultConfig());
  67         }
  68
  69         # l10n
  70         $language = $this->user->getConfigValue('language');
  71         putenv('LC_ALL=' . $language);
  72         setlocale(LC_ALL, $language);
  73         bindtextdomain($language, LOCALE);
  74         textdomain($language);
  75
  76         # Pagination
  77         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
  78
  79         # Set up theme
  80         $themeDirectory = $this->user->getConfigValue('theme');
  81
  82         if ($themeDirectory === false) {
  83             $themeDirectory = DEFAULT_THEME;
  84         }
  85
  86         $this->currentTheme = $themeDirectory;
  87
  88         # Set up language
  89         $languageDirectory = $this->user->getConfigValue('language');
  90
  91         if ($languageDirectory === false) {
  92             $languageDirectory = DEFAULT_THEME;
  93         }
  94
  95         $this->currentLanguage = $languageDirectory;
  96     }
  97
  98     public function configFileIsAvailable() {
  99         if (! self::$configFileAvailable) {
 100             $this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.';
 101
 102             return false;
 103         }
 104
 105         return true;
 106     }
 107
 108     public function themeIsInstalled() {
 109         $passTheme = TRUE;
 110         # Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet
 111         if (! self::$canRenderTemplates) {
 112             $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.inthepoche.com/doku.php?id=users:begin:install">the documentation.</a>';
 113             $passTheme = FALSE;
 114         }
 115
 116         if (! is_writable(CACHE)) {
 117             $this->notInstalledMessage[] = 'You don\'t have write access on cache directory.';
 118
 119             self::$canRenderTemplates = false;
 120
 121             $passTheme = FALSE;
 122         }
 123
 124         # Check if the selected theme and its requirements are present
 125         if ($this->getTheme() != '' && ! is_dir(THEME . '/' . $this->getTheme())) {
 126             $this->notInstalledMessage[] = 'The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $this->getTheme() . ')';
 127
 128             self::$canRenderTemplates = false;
 129
 130             $passTheme = FALSE;
 131         }
 132
 133         foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) {
 134             if (! is_dir(THEME . '/' . $requiredTheme)) {
 135                 $this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')';
 136
 137                 self::$canRenderTemplates = false;
 138
 139                 $passTheme = FALSE;
 140             }
 141         }
 142
 143         if (!$passTheme) {
 144             return FALSE;
 145         }
 146
 147
 148         return true;
 149     }
 150
 151     /**
 152      * all checks before installation.
 153      * @todo move HTML to template
 154      * @return boolean
 155      */
 156     public function systemIsInstalled()
 157     {
 158         $msg = TRUE;
 159
 160         $configSalt = defined('SALT') ? constant('SALT') : '';
 161
 162         if (empty($configSalt)) {
 163             $this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.';
 164             $msg = FALSE;
 165         }
 166         if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) {
 167             Tools::logm('sqlite file doesn\'t exist');
 168             $this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.';
 169             $msg = FALSE;
 170         }
 171         if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) {
 172             $this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.';
 173             $msg = FALSE;
 174         }
 175         if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) {
 176             Tools::logm('you don\'t have write access on sqlite file');
 177             $this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.';
 178             $msg = FALSE;
 179         }
 180
 181         if (! $msg) {
 182             return false;
 183         }
 184
 185         return true;
 186     }
 187
 188     public function getNotInstalledMessage() {
 189         return $this->notInstalledMessage;
 190     }
 191
 192     private function initTpl()
 193     {
 194         $loaderChain = new Twig_Loader_Chain();
 195
 196         # add the current theme as first to the loader chain so Twig will look there first for overridden template files
 197         try {
 198             $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $this->getTheme()));
 199         } catch (Twig_Error_Loader $e) {
 200             # @todo isInstalled() should catch this, inject Twig later
 201             die('The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (' . THEME . '/' . $this->getTheme() .' is missing)');
 202         }
 203
 204         # add all required themes to the loader chain
 205         foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) {
 206             try {
 207                 $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . DEFAULT_THEME));
 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 (' . $this->getTheme() . ')');
 211             }
 212         }
 213
 214         if (DEBUG_POCHE) {
 215             $twig_params = array();
 216         } else {
 217             $twig_params = array('cache' => CACHE);
 218         }
 219
 220         $this->tpl = new Twig_Environment($loaderChain, $twig_params);
 221         $this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
 222
 223         # filter to display domain name of an url
 224         $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
 225         $this->tpl->addFilter($filter);
 226
 227         # filter for reading time
 228         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
 229         $this->tpl->addFilter($filter);
 230
 231         # filter for simple filenames in config view
 232         $filter = new Twig_SimpleFilter('getPrettyFilename', function($string) { return str_replace(ROOT, '', $string); });
 233         $this->tpl->addFilter($filter);
 234     }
 235
 236     private function install()
 237     {
 238         Tools::logm('poche still not installed');
 239         echo $this->tpl->render('install.twig', array(
 240             'token' => Session::getToken(),
 241             'theme' => $this->getTheme(),
 242             'poche_url' => Tools::getPocheUrl()
 243         ));
 244         if (isset($_GET['install'])) {
 245             if (($_POST['password'] == $_POST['password_repeat'])
 246                 && $_POST['password'] != "" && $_POST['login'] != "") {
 247                 # let's rock, install poche baby !
 248                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 249                 {
 250                     Session::logout();
 251                     Tools::logm('poche is now installed');
 252                     Tools::redirect();
 253                 }
 254             }
 255             else {
 256                 Tools::logm('error during installation');
 257                 Tools::redirect();
 258             }
 259         }
 260         exit();
 261     }
 262
 263     public function getTheme() {
 264         return $this->currentTheme;
 265     }
 266
 267     public function getLanguage() {
 268         return $this->currentLanguage;
 269     }
 270
 271     public function getInstalledThemes() {
 272         $handle = opendir(THEME);
 273         $themes = array();
 274
 275         while (($theme = readdir($handle)) !== false) {
 276             # Themes are stored in a directory, so all directory names are themes
 277             # @todo move theme installation data to database
 278             if (! is_dir(THEME . '/' . $theme) || in_array($theme, array('..', '.'))) {
 279                 continue;
 280             }
 281
 282             $current = false;
 283
 284             if ($theme === $this->getTheme()) {
 285                 $current = true;
 286             }
 287
 288             $themes[] = array('name' => $theme, 'current' => $current);
 289         }
 290
 291         sort($themes);
 292         return $themes;
 293     }
 294
 295     public function getInstalledLanguages() {
 296         $handle = opendir(LOCALE);
 297         $languages = array();
 298
 299         while (($language = readdir($handle)) !== false) {
 300             # Languages are stored in a directory, so all directory names are languages
 301             # @todo move language installation data to database
 302             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.'))) {
 303                 continue;
 304             }
 305
 306             $current = false;
 307
 308             if ($language === $this->getLanguage()) {
 309                 $current = true;
 310             }
 311
 312             $languages[] = array('name' => $language, 'current' => $current);
 313         }
 314
 315         return $languages;
 316     }
 317
 318     public function getDefaultConfig()
 319     {
 320         return array(
 321             'pager' => PAGINATION,
 322             'language' => LANG,
 323             'theme' => DEFAULT_THEME
 324         );
 325     }
 326
 327     /**
 328      * Call action (mark as fav, archive, delete, etc.)
 329      */
 330     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE)
 331     {
 332         switch ($action)
 333         {
 334             case 'add':
 335                 $json = file_get_contents(Tools::getPocheUrl() . '/inc/3rdparty/makefulltextfeed.php?url='.urlencode($url->getUrl()).'&max=5&links=preserve&exc=&format=json&submit=Create+Feed');
 336                 $content = json_decode($json, true);
 337                 $title = $content['rss']['channel']['item']['title'];
 338                 $body = $content['rss']['channel']['item']['description'];
 339
 340                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 341                     Tools::logm('add link ' . $url->getUrl());
 342                     $sequence = '';
 343                     if (STORAGE == 'postgres') {
 344                         $sequence = 'entries_id_seq';
 345                     }
 346                     $last_id = $this->store->getLastId($sequence);
 347                     if (DOWNLOAD_PICTURES) {
 348                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 349                         Tools::logm('updating content article');
 350                         $this->store->updateContent($last_id, $content, $this->user->getId());
 351                     }
 352                     if (!$import) {
 353                         $this->messages->add('s', _('the link has been added successfully'));
 354                     }
 355                 }
 356                 else {
 357                     if (!$import) {
 358                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 359                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 360                     }
 361                 }
 362
 363                 if (!$import) {
 364                     if ($autoclose == TRUE) {
 365                       Tools::redirect('?view=home');
 366                     } else {
 367                       Tools::redirect('?view=home&closewin=true');
 368                     }
 369                 }
 370                 break;
 371             case 'delete':
 372                 $msg = 'delete link #' . $id;
 373                 if ($this->store->deleteById($id, $this->user->getId())) {
 374                     if (DOWNLOAD_PICTURES) {
 375                         remove_directory(ABS_PATH . $id);
 376                     }
 377                     $this->messages->add('s', _('the link has been deleted successfully'));
 378                 }
 379                 else {
 380                     $this->messages->add('e', _('the link wasn\'t deleted'));
 381                     $msg = 'error : can\'t delete link #' . $id;
 382                 }
 383                 Tools::logm($msg);
 384                 Tools::redirect('?');
 385                 break;
 386             case 'toggle_fav' :
 387                 $this->store->favoriteById($id, $this->user->getId());
 388                 Tools::logm('mark as favorite link #' . $id);
 389                 if (!$import) {
 390                     Tools::redirect();
 391                 }
 392                 break;
 393             case 'toggle_archive' :
 394                 $this->store->archiveById($id, $this->user->getId());
 395                 Tools::logm('archive link #' . $id);
 396                 if (!$import) {
 397                     Tools::redirect();
 398                 }
 399                 break;
 400             default:
 401                 break;
 402         }
 403     }
 404
 405     function displayView($view, $id = 0)
 406     {
 407         $tpl_vars = array();
 408
 409         switch ($view)
 410         {
 411             case 'config':
 412                 $dev = $this->getPocheVersion('dev');
 413                 $prod = $this->getPocheVersion('prod');
 414                 $compare_dev = version_compare(POCHE, $dev);
 415                 $compare_prod = version_compare(POCHE, $prod);
 416                 $themes = $this->getInstalledThemes();
 417                 $languages = $this->getInstalledLanguages();
 418                 $token = $this->user->getConfigValue('token');
 419                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']))?true:false;
 420                 $tpl_vars = array(
 421                     'themes' => $themes,
 422                     'languages' => $languages,
 423                     'dev' => $dev,
 424                     'prod' => $prod,
 425                     'compare_dev' => $compare_dev,
 426                     'compare_prod' => $compare_prod,
 427                     'token' => $token,
 428                     'user_id' => $this->user->getId(),
 429                     'http_auth' => $http_auth,
 430                 );
 431                 Tools::logm('config view');
 432                 break;
 433             case 'view':
 434                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 435                 if ($entry != NULL) {
 436                     Tools::logm('view link #' . $id);
 437                     $content = $entry['content'];
 438                     if (function_exists('tidy_parse_string')) {
 439                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 440                         $tidy->cleanRepair();
 441                         $content = $tidy->value;
 442                     }
 443
 444                     # flattr checking
 445                     $flattr = new FlattrItem();
 446                     $flattr->checkItem($entry['url'],$entry['id']);
 447
 448                     $tpl_vars = array(
 449                     'entry' => $entry,
 450                     'content' => $content,
 451                     'flattr' => $flattr
 452                     );
 453                 }
 454                 else {
 455                     Tools::logm('error in view call : entry is null');
 456                 }
 457                 break;
 458             default: # home, favorites and archive views
 459                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 460                 $tpl_vars = array(
 461                     'entries' => '',
 462                     'page_links' => '',
 463                     'nb_results' => '',
 464                 );
 465
 466                 if (count($entries) > 0) {
 467                     $this->pagination->set_total(count($entries));
 468                     $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
 469                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 470                     $tpl_vars['entries'] = $datas;
 471                     $tpl_vars['page_links'] = $page_links;
 472                     $tpl_vars['nb_results'] = count($entries);
 473                 }
 474                 Tools::logm('display ' . $view . ' view');
 475                 break;
 476         }
 477
 478         return $tpl_vars;
 479     }
 480
 481     /**
 482      * update the password of the current user.
 483      * if MODE_DEMO is TRUE, the password can't be updated.
 484      * @todo add the return value
 485      * @todo set the new password in function header like this updatePassword($newPassword)
 486      * @return boolean
 487      */
 488     public function updatePassword()
 489     {
 490         if (MODE_DEMO) {
 491             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 492             Tools::logm('in demo mode, you can\'t do this');
 493             Tools::redirect('?view=config');
 494         }
 495         else {
 496             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 497                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 498                     $this->messages->add('s', _('your password has been updated'));
 499                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 500                     Session::logout();
 501                     Tools::logm('password updated');
 502                     Tools::redirect();
 503                 }
 504                 else {
 505                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 506                     Tools::redirect('?view=config');
 507                 }
 508             }
 509         }
 510     }
 511
 512     public function updateTheme()
 513     {
 514         # no data
 515         if (empty($_POST['theme'])) {
 516         }
 517
 518         # we are not going to change it to the current theme...
 519         if ($_POST['theme'] == $this->getTheme()) {
 520             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 521             Tools::redirect('?view=config');
 522         }
 523
 524         $themes = $this->getInstalledThemes();
 525         $actualTheme = false;
 526
 527         foreach ($themes as $theme) {
 528             if ($theme['name'] == $_POST['theme']) {
 529                 $actualTheme = true;
 530                 break;
 531             }
 532         }
 533
 534         if (! $actualTheme) {
 535             $this->messages->add('e', _('that theme does not seem to be installed'));
 536             Tools::redirect('?view=config');
 537         }
 538
 539         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 540         $this->messages->add('s', _('you have changed your theme preferences'));
 541
 542         $currentConfig = $_SESSION['poche_user']->config;
 543         $currentConfig['theme'] = $_POST['theme'];
 544
 545         $_SESSION['poche_user']->setConfig($currentConfig);
 546
 547         Tools::redirect('?view=config');
 548     }
 549
 550     public function updateLanguage()
 551     {
 552         # no data
 553         if (empty($_POST['language'])) {
 554         }
 555
 556         # we are not going to change it to the current language...
 557         if ($_POST['language'] == $this->getLanguage()) {
 558             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 559             Tools::redirect('?view=config');
 560         }
 561
 562         $languages = $this->getInstalledLanguages();
 563         $actualLanguage = false;
 564
 565         foreach ($languages as $language) {
 566             if ($language['name'] == $_POST['language']) {
 567                 $actualLanguage = true;
 568                 break;
 569             }
 570         }
 571
 572         if (! $actualLanguage) {
 573             $this->messages->add('e', _('that language does not seem to be installed'));
 574             Tools::redirect('?view=config');
 575         }
 576
 577         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 578         $this->messages->add('s', _('you have changed your language preferences'));
 579
 580         $currentConfig = $_SESSION['poche_user']->config;
 581         $currentConfig['language'] = $_POST['language'];
 582
 583         $_SESSION['poche_user']->setConfig($currentConfig);
 584
 585         Tools::redirect('?view=config');
 586     }
 587
 588     /**
 589      * get credentials from differents sources
 590      * it redirects the user to the $referer link
 591      * @return array
 592      */
 593      private function credentials() {
 594          if(isset($_SERVER['PHP_AUTH_USER'])) {
 595              return array($_SERVER['PHP_AUTH_USER'],'php_auth');
 596          }
 597          if(!empty($_POST['login']) && !empty($_POST['password'])) {
 598              return array($_POST['login'],$_POST['password']);
 599          }
 600          return array(false,false);
 601      }
 602
 603     /**
 604      * checks if login & password are correct and save the user in session.
 605      * it redirects the user to the $referer link
 606      * @param  string $referer the url to redirect after login
 607      * @todo add the return value
 608      * @return boolean
 609      */
 610     public function login($referer)
 611     {
 612         list($login,$password)=$this->credentials();
 613         if($login === false || $password === false) {
 614             $this->messages->add('e', _('login failed: you have to fill all fields'));
 615             Tools::logm('login failed');
 616             Tools::redirect();
 617         }
 618         if (!empty($login) && !empty($password)) {
 619             $user = $this->store->login($login, Tools::encodeString($password . $login));
 620             if ($user != array()) {
 621                 # Save login into Session
 622                 Session::login($user['username'], $user['password'], $login, Tools::encodeString($password . $login), array('poche_user' => new User($user)));
 623                 $this->messages->add('s', _('welcome to your poche'));
 624                 Tools::logm('login successful');
 625                 Tools::redirect($referer);
 626             }
 627             $this->messages->add('e', _('login failed: bad login or password'));
 628             Tools::logm('login failed');
 629             Tools::redirect();
 630         }
 631     }
 632
 633     /**
 634      * log out the poche user. It cleans the session.
 635      * @todo add the return value
 636      * @return boolean
 637      */
 638     public function logout()
 639     {
 640         $this->user = array();
 641         Session::logout();
 642         $this->messages->add('s', _('see you soon!'));
 643         Tools::logm('logout');
 644         Tools::redirect();
 645     }
 646
 647     /**
 648      * import from Instapaper. poche needs a ./instapaper-export.html file
 649      * @todo add the return value
 650      * @param string $targetFile the file used for importing
 651      * @return boolean
 652      */
 653     private function importFromInstapaper($targetFile)
 654     {
 655         # TODO gestion des articles favs
 656         $html = new simple_html_dom();
 657         $html->load_file($targetFile);
 658         Tools::logm('starting import from instapaper');
 659
 660         $read = 0;
 661         $errors = array();
 662         foreach($html->find('ol') as $ul)
 663         {
 664             foreach($ul->find('li') as $li)
 665             {
 666                 $a = $li->find('a');
 667                 $url = new Url(base64_encode($a[0]->href));
 668                 $this->action('add', $url, 0, TRUE);
 669                 if ($read == '1') {
 670                     $sequence = '';
 671                     if (STORAGE == 'postgres') {
 672                         $sequence = 'entries_id_seq';
 673                     }
 674                     $last_id = $this->store->getLastId($sequence);
 675                     $this->action('toggle_archive', $url, $last_id, TRUE);
 676                 }
 677             }
 678
 679             # the second <ol> is for read links
 680             $read = 1;
 681         }
 682         $this->messages->add('s', _('import from instapaper completed'));
 683         Tools::logm('import from instapaper completed');
 684         Tools::redirect();
 685     }
 686
 687     /**
 688      * import from Pocket. poche needs a ./ril_export.html file
 689      * @todo add the return value
 690      * @param string $targetFile the file used for importing
 691      * @return boolean
 692      */
 693     private function importFromPocket($targetFile)
 694     {
 695         # TODO gestion des articles favs
 696         $html = new simple_html_dom();
 697         $html->load_file($targetFile);
 698         Tools::logm('starting import from pocket');
 699
 700         $read = 0;
 701         $errors = array();
 702         foreach($html->find('ul') as $ul)
 703         {
 704             foreach($ul->find('li') as $li)
 705             {
 706                 $a = $li->find('a');
 707                 $url = new Url(base64_encode($a[0]->href));
 708                 $this->action('add', $url, 0, TRUE);
 709                 if ($read == '1') {
 710                         $sequence = '';
 711                         if (STORAGE == 'postgres') {
 712                             $sequence = 'entries_id_seq';
 713                         }
 714                     $last_id = $this->store->getLastId($sequence);
 715                     $this->action('toggle_archive', $url, $last_id, TRUE);
 716                 }
 717             }
 718
 719             # the second <ul> is for read links
 720             $read = 1;
 721         }
 722         $this->messages->add('s', _('import from pocket completed'));
 723         Tools::logm('import from pocket completed');
 724         Tools::redirect();
 725     }
 726
 727     /**
 728      * import from Readability. poche needs a ./readability file
 729      * @todo add the return value
 730      * @param string $targetFile the file used for importing
 731      * @return boolean
 732      */
 733     private function importFromReadability($targetFile)
 734     {
 735         # TODO gestion des articles lus / favs
 736         $str_data = file_get_contents($targetFile);
 737         $data = json_decode($str_data,true);
 738         Tools::logm('starting import from Readability');
 739         $count = 0;
 740         foreach ($data as $key => $value) {
 741             $url = NULL;
 742             $favorite = FALSE;
 743             $archive = FALSE;
 744             foreach ($value as $attr => $attr_value) {
 745                 if ($attr == 'article__url') {
 746                     $url = new Url(base64_encode($attr_value));
 747                 }
 748                 $sequence = '';
 749                 if (STORAGE == 'postgres') {
 750                     $sequence = 'entries_id_seq';
 751                 }
 752                 if ($attr_value == 'true') {
 753                     if ($attr == 'favorite') {
 754                         $favorite = TRUE;
 755                     }
 756                     if ($attr == 'archive') {
 757                         $archive = TRUE;
 758                     }
 759                 }
 760             }
 761             # we can add the url
 762             if (!is_null($url) && $url->isCorrect()) {
 763                 $this->action('add', $url, 0, TRUE);
 764                 $count++;
 765                 if ($favorite) {
 766                     $last_id = $this->store->getLastId($sequence);
 767                     $this->action('toggle_fav', $url, $last_id, TRUE);
 768                 }
 769                 if ($archive) {
 770                     $last_id = $this->store->getLastId($sequence);
 771                     $this->action('toggle_archive', $url, $last_id, TRUE);
 772                 }
 773             }
 774         }
 775         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 776         Tools::logm('import from Readability completed');
 777         Tools::redirect();
 778     }
 779
 780     /**
 781      * import datas into your poche
 782      * @param  string $from name of the service to import : pocket, instapaper or readability
 783      * @todo add the return value
 784      * @return boolean
 785      */
 786     public function import($from)
 787     {
 788         $providers = array(
 789             'pocket' => 'importFromPocket',
 790             'readability' => 'importFromReadability',
 791             'instapaper' => 'importFromInstapaper'
 792         );
 793
 794         if (! isset($providers[$from])) {
 795             $this->messages->add('e', _('Unknown import provider.'));
 796             Tools::redirect();
 797         }
 798
 799         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
 800         $targetFile = constant($targetDefinition);
 801
 802         if (! defined($targetDefinition)) {
 803             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
 804             Tools::redirect();
 805         }
 806
 807         if (! file_exists($targetFile)) {
 808             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
 809             Tools::redirect();
 810         }
 811
 812         $this->$providers[$from]($targetFile);
 813     }
 814
 815     /**
 816      * export poche entries in json
 817      * @return json all poche entries
 818      */
 819     public function export()
 820     {
 821         $entries = $this->store->retrieveAll($this->user->getId());
 822         echo $this->tpl->render('export.twig', array(
 823             'export' => Tools::renderJson($entries),
 824         ));
 825         Tools::logm('export view');
 826     }
 827
 828     /**
 829      * Checks online the latest version of poche and cache it
 830      * @param  string $which 'prod' or 'dev'
 831      * @return string        latest $which version
 832      */
 833     private function getPocheVersion($which = 'prod')
 834     {
 835         $cache_file = CACHE . '/' . $which;
 836
 837         # checks if the cached version file exists
 838         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 839            $version = file_get_contents($cache_file);
 840         } else {
 841            $version = file_get_contents('http://static.inthepoche.com/versions/' . $which);
 842            file_put_contents($cache_file, $version, LOCK_EX);
 843         }
 844         return $version;
 845     }
 846
 847     public function generateToken()
 848     {
 849         if (ini_get('open_basedir') === '') {
 850             $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
 851         }
 852         else {
 853             $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
 854         }
 855
 856         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 857         $currentConfig = $_SESSION['poche_user']->config;
 858         $currentConfig['token'] = $token;
 859         $_SESSION['poche_user']->setConfig($currentConfig);
 860     }
 861
 862     public function generateFeeds($token, $user_id, $type = 'home')
 863     {
 864         $allowed_types = array('home', 'fav', 'archive');
 865         $config = $this->store->getConfigUser($user_id);
 866
 867         if (!in_array($type, $allowed_types) ||
 868             $token != $config['token']) {
 869             die(_('Uh, there is a problem while generating feeds.'));
 870         }
 871         // Check the token
 872
 873         $feed = new FeedWriter(ATOM);
 874         $feed->setTitle('poche - ' . $type . ' feed');
 875         $feed->setLink(Tools::getPocheUrl());
 876         $feed->setChannelElement('updated', date(DATE_ATOM , time()));
 877         $feed->setChannelElement('author', 'poche');
 878
 879         $entries = $this->store->getEntriesByView($type, $user_id);
 880         if (count($entries) > 0) {
 881             foreach ($entries as $entry) {
 882                 $newItem = $feed->createNewItem();
 883                 $newItem->setTitle(htmlentities($entry['title']));
 884                 $newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 885                 $newItem->setDate(time());
 886                 $newItem->setDescription($entry['content']);
 887                 $feed->addItem($newItem);
 888             }
 889         }
 890
 891         $feed->genarateFeed();
 892         exit;
 893     }
 894 }