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                 $content = $url->extract();
 336
 337                 if ($this->store->add($url->getUrl(), $content['title'], $content['body'], $this->user->getId())) {
 338                     Tools::logm('add link ' . $url->getUrl());
 339                     $sequence = '';
 340                     if (STORAGE == 'postgres') {
 341                         $sequence = 'entries_id_seq';
 342                     }
 343                     $last_id = $this->store->getLastId($sequence);
 344                     if (DOWNLOAD_PICTURES) {
 345                         $content = filtre_picture($content['body'], $url->getUrl(), $last_id);
 346                         Tools::logm('updating content article');
 347                         $this->store->updateContent($last_id, $content, $this->user->getId());
 348                     }
 349                     if (!$import) {
 350                         $this->messages->add('s', _('the link has been added successfully'));
 351                     }
 352                 }
 353                 else {
 354                     if (!$import) {
 355                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 356                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 357                     }
 358                 }
 359
 360                 if (!$import) {
 361                     if ($autoclose == TRUE) {
 362                       Tools::redirect('?view=home');
 363                     } else {
 364                       Tools::redirect('?view=home&closewin=true');
 365                     }
 366                 }
 367                 break;
 368             case 'delete':
 369                 $msg = 'delete link #' . $id;
 370                 if ($this->store->deleteById($id, $this->user->getId())) {
 371                     if (DOWNLOAD_PICTURES) {
 372                         remove_directory(ABS_PATH . $id);
 373                     }
 374                     $this->messages->add('s', _('the link has been deleted successfully'));
 375                 }
 376                 else {
 377                     $this->messages->add('e', _('the link wasn\'t deleted'));
 378                     $msg = 'error : can\'t delete link #' . $id;
 379                 }
 380                 Tools::logm($msg);
 381                 Tools::redirect('?');
 382                 break;
 383             case 'toggle_fav' :
 384                 $this->store->favoriteById($id, $this->user->getId());
 385                 Tools::logm('mark as favorite link #' . $id);
 386                 if (!$import) {
 387                     Tools::redirect();
 388                 }
 389                 break;
 390             case 'toggle_archive' :
 391                 $this->store->archiveById($id, $this->user->getId());
 392                 Tools::logm('archive link #' . $id);
 393                 if (!$import) {
 394                     Tools::redirect();
 395                 }
 396                 break;
 397             default:
 398                 break;
 399         }
 400     }
 401
 402     function displayView($view, $id = 0)
 403     {
 404         $tpl_vars = array();
 405
 406         switch ($view)
 407         {
 408             case 'config':
 409                 $dev = $this->getPocheVersion('dev');
 410                 $prod = $this->getPocheVersion('prod');
 411                 $compare_dev = version_compare(POCHE, $dev);
 412                 $compare_prod = version_compare(POCHE, $prod);
 413                 $themes = $this->getInstalledThemes();
 414                 $languages = $this->getInstalledLanguages();
 415                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']))?true:false;
 416                 $tpl_vars = array(
 417                     'themes' => $themes,
 418                     'languages' => $languages,
 419                     'dev' => $dev,
 420                     'prod' => $prod,
 421                     'compare_dev' => $compare_dev,
 422                     'compare_prod' => $compare_prod,
 423                     'http_auth' => $http_auth,
 424                 );
 425                 Tools::logm('config view');
 426                 break;
 427             case 'view':
 428                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 429                 if ($entry != NULL) {
 430                     Tools::logm('view link #' . $id);
 431                     $content = $entry['content'];
 432                     if (function_exists('tidy_parse_string')) {
 433                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 434                         $tidy->cleanRepair();
 435                         $content = $tidy->value;
 436                     }
 437
 438                     # flattr checking
 439                     $flattr = new FlattrItem();
 440                     $flattr->checkItem($entry['url'],$entry['id']);
 441
 442                     $tpl_vars = array(
 443                     'entry' => $entry,
 444                     'content' => $content,
 445                     'flattr' => $flattr
 446                     );
 447                 }
 448                 else {
 449                     Tools::logm('error in view call : entry is null');
 450                 }
 451                 break;
 452             default: # home, favorites and archive views
 453                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 454                 $tpl_vars = array(
 455                     'entries' => '',
 456                     'page_links' => '',
 457                     'nb_results' => '',
 458                 );
 459
 460                 if (count($entries) > 0) {
 461                     $this->pagination->set_total(count($entries));
 462                     $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
 463                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 464                     $tpl_vars['entries'] = $datas;
 465                     $tpl_vars['page_links'] = $page_links;
 466                     $tpl_vars['nb_results'] = count($entries);
 467                 }
 468                 Tools::logm('display ' . $view . ' view');
 469                 break;
 470         }
 471
 472         return $tpl_vars;
 473     }
 474
 475     /**
 476      * update the password of the current user.
 477      * if MODE_DEMO is TRUE, the password can't be updated.
 478      * @todo add the return value
 479      * @todo set the new password in function header like this updatePassword($newPassword)
 480      * @return boolean
 481      */
 482     public function updatePassword()
 483     {
 484         if (MODE_DEMO) {
 485             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 486             Tools::logm('in demo mode, you can\'t do this');
 487             Tools::redirect('?view=config');
 488         }
 489         else {
 490             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 491                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 492                     $this->messages->add('s', _('your password has been updated'));
 493                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 494                     Session::logout();
 495                     Tools::logm('password updated');
 496                     Tools::redirect();
 497                 }
 498                 else {
 499                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 500                     Tools::redirect('?view=config');
 501                 }
 502             }
 503         }
 504     }
 505
 506     public function updateTheme()
 507     {
 508         # no data
 509         if (empty($_POST['theme'])) {
 510         }
 511
 512         # we are not going to change it to the current theme...
 513         if ($_POST['theme'] == $this->getTheme()) {
 514             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 515             Tools::redirect('?view=config');
 516         }
 517
 518         $themes = $this->getInstalledThemes();
 519         $actualTheme = false;
 520
 521         foreach ($themes as $theme) {
 522             if ($theme['name'] == $_POST['theme']) {
 523                 $actualTheme = true;
 524                 break;
 525             }
 526         }
 527
 528         if (! $actualTheme) {
 529             $this->messages->add('e', _('that theme does not seem to be installed'));
 530             Tools::redirect('?view=config');
 531         }
 532
 533         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 534         $this->messages->add('s', _('you have changed your theme preferences'));
 535
 536         $currentConfig = $_SESSION['poche_user']->config;
 537         $currentConfig['theme'] = $_POST['theme'];
 538
 539         $_SESSION['poche_user']->setConfig($currentConfig);
 540
 541         Tools::redirect('?view=config');
 542     }
 543
 544     public function updateLanguage()
 545     {
 546         # no data
 547         if (empty($_POST['language'])) {
 548         }
 549
 550         # we are not going to change it to the current language...
 551         if ($_POST['language'] == $this->getLanguage()) {
 552             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 553             Tools::redirect('?view=config');
 554         }
 555
 556         $languages = $this->getInstalledLanguages();
 557         $actualLanguage = false;
 558
 559         foreach ($languages as $language) {
 560             if ($language['name'] == $_POST['language']) {
 561                 $actualLanguage = true;
 562                 break;
 563             }
 564         }
 565
 566         if (! $actualLanguage) {
 567             $this->messages->add('e', _('that language does not seem to be installed'));
 568             Tools::redirect('?view=config');
 569         }
 570
 571         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 572         $this->messages->add('s', _('you have changed your language preferences'));
 573
 574         $currentConfig = $_SESSION['poche_user']->config;
 575         $currentConfig['language'] = $_POST['language'];
 576
 577         $_SESSION['poche_user']->setConfig($currentConfig);
 578
 579         Tools::redirect('?view=config');
 580     }
 581
 582     /**
 583      * get credentials from differents sources
 584      * it redirects the user to the $referer link
 585      * @return array
 586      */
 587      private function credentials() {
 588          if(isset($_SERVER['PHP_AUTH_USER'])) {
 589              return array($_SERVER['PHP_AUTH_USER'],'php_auth');
 590          }
 591          if(!empty($_POST['login']) && !empty($_POST['password'])) {
 592              return array($_POST['login'],$_POST['password']);
 593          }
 594          return array(false,false);
 595      }
 596
 597     /**
 598      * checks if login & password are correct and save the user in session.
 599      * it redirects the user to the $referer link
 600      * @param  string $referer the url to redirect after login
 601      * @todo add the return value
 602      * @return boolean
 603      */
 604     public function login($referer)
 605     {
 606         list($login,$password)=$this->credentials();
 607         if($login === false || $password === false) {
 608             $this->messages->add('e', _('login failed: you have to fill all fields'));
 609             Tools::logm('login failed');
 610             Tools::redirect();
 611         }
 612         if (!empty($login) && !empty($password)) {
 613             $user = $this->store->login($login, Tools::encodeString($password . $login));
 614             if ($user != array()) {
 615                 # Save login into Session
 616                 Session::login($user['username'], $user['password'], $login, Tools::encodeString($password . $login), array('poche_user' => new User($user)));
 617                 $this->messages->add('s', _('welcome to your poche'));
 618                 Tools::logm('login successful');
 619                 Tools::redirect($referer);
 620             }
 621             $this->messages->add('e', _('login failed: bad login or password'));
 622             Tools::logm('login failed');
 623             Tools::redirect();
 624         }
 625     }
 626
 627     /**
 628      * log out the poche user. It cleans the session.
 629      * @todo add the return value
 630      * @return boolean
 631      */
 632     public function logout()
 633     {
 634         $this->user = array();
 635         Session::logout();
 636         $this->messages->add('s', _('see you soon!'));
 637         Tools::logm('logout');
 638         Tools::redirect();
 639     }
 640
 641     /**
 642      * import from Instapaper. poche needs a ./instapaper-export.html file
 643      * @todo add the return value
 644      * @param string $targetFile the file used for importing
 645      * @return boolean
 646      */
 647     private function importFromInstapaper($targetFile)
 648     {
 649         # TODO gestion des articles favs
 650         $html = new simple_html_dom();
 651         $html->load_file($targetFile);
 652         Tools::logm('starting import from instapaper');
 653
 654         $read = 0;
 655         $errors = array();
 656         foreach($html->find('ol') as $ul)
 657         {
 658             foreach($ul->find('li') as $li)
 659             {
 660                 $a = $li->find('a');
 661                 $url = new Url(base64_encode($a[0]->href));
 662                 $this->action('add', $url, 0, TRUE);
 663                 if ($read == '1') {
 664                     $sequence = '';
 665                     if (STORAGE == 'postgres') {
 666                         $sequence = 'entries_id_seq';
 667                     }
 668                     $last_id = $this->store->getLastId($sequence);
 669                     $this->action('toggle_archive', $url, $last_id, TRUE);
 670                 }
 671             }
 672
 673             # the second <ol> is for read links
 674             $read = 1;
 675         }
 676         $this->messages->add('s', _('import from instapaper completed'));
 677         Tools::logm('import from instapaper completed');
 678         Tools::redirect();
 679     }
 680
 681     /**
 682      * import from Pocket. poche needs a ./ril_export.html file
 683      * @todo add the return value
 684      * @param string $targetFile the file used for importing
 685      * @return boolean
 686      */
 687     private function importFromPocket($targetFile)
 688     {
 689         # TODO gestion des articles favs
 690         $html = new simple_html_dom();
 691         $html->load_file($targetFile);
 692         Tools::logm('starting import from pocket');
 693
 694         $read = 0;
 695         $errors = array();
 696         foreach($html->find('ul') as $ul)
 697         {
 698             foreach($ul->find('li') as $li)
 699             {
 700                 $a = $li->find('a');
 701                 $url = new Url(base64_encode($a[0]->href));
 702                 $this->action('add', $url, 0, TRUE);
 703                 if ($read == '1') {
 704                         $sequence = '';
 705                         if (STORAGE == 'postgres') {
 706                             $sequence = 'entries_id_seq';
 707                         }
 708                     $last_id = $this->store->getLastId($sequence);
 709                     $this->action('toggle_archive', $url, $last_id, TRUE);
 710                 }
 711             }
 712
 713             # the second <ul> is for read links
 714             $read = 1;
 715         }
 716         $this->messages->add('s', _('import from pocket completed'));
 717         Tools::logm('import from pocket completed');
 718         Tools::redirect();
 719     }
 720
 721     /**
 722      * import from Readability. poche needs a ./readability file
 723      * @todo add the return value
 724      * @param string $targetFile the file used for importing
 725      * @return boolean
 726      */
 727     private function importFromReadability($targetFile)
 728     {
 729         # TODO gestion des articles lus / favs
 730         $str_data = file_get_contents($targetFile);
 731         $data = json_decode($str_data,true);
 732         Tools::logm('starting import from Readability');
 733         $count = 0;
 734         foreach ($data as $key => $value) {
 735             $url = NULL;
 736             $favorite = FALSE;
 737             $archive = FALSE;
 738             foreach ($value as $attr => $attr_value) {
 739                 if ($attr == 'article__url') {
 740                     $url = new Url(base64_encode($attr_value));
 741                 }
 742                 $sequence = '';
 743                 if (STORAGE == 'postgres') {
 744                     $sequence = 'entries_id_seq';
 745                 }
 746                 if ($attr_value == 'true') {
 747                     if ($attr == 'favorite') {
 748                         $favorite = TRUE;
 749                     }
 750                     if ($attr == 'archive') {
 751                         $archive = TRUE;
 752                     }
 753                 }
 754             }
 755             # we can add the url
 756             if (!is_null($url) && $url->isCorrect()) {
 757                 $this->action('add', $url, 0, TRUE);
 758                 $count++;
 759                 if ($favorite) {
 760                     $last_id = $this->store->getLastId($sequence);
 761                     $this->action('toggle_fav', $url, $last_id, TRUE);
 762                 }
 763                 if ($archive) {
 764                     $last_id = $this->store->getLastId($sequence);
 765                     $this->action('toggle_archive', $url, $last_id, TRUE);
 766                 }
 767             }
 768         }
 769         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 770         Tools::logm('import from Readability completed');
 771         Tools::redirect();
 772     }
 773
 774     /**
 775      * import datas into your poche
 776      * @param  string $from name of the service to import : pocket, instapaper or readability
 777      * @todo add the return value
 778      * @return boolean
 779      */
 780     public function import($from)
 781     {
 782         $providers = array(
 783             'pocket' => 'importFromPocket',
 784             'readability' => 'importFromReadability',
 785             'instapaper' => 'importFromInstapaper'
 786         );
 787
 788         if (! isset($providers[$from])) {
 789             $this->messages->add('e', _('Unknown import provider.'));
 790             Tools::redirect();
 791         }
 792
 793         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
 794         $targetFile = constant($targetDefinition);
 795
 796         if (! defined($targetDefinition)) {
 797             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
 798             Tools::redirect();
 799         }
 800
 801         if (! file_exists($targetFile)) {
 802             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
 803             Tools::redirect();
 804         }
 805
 806         $this->$providers[$from]($targetFile);
 807     }
 808
 809     /**
 810      * export poche entries in json
 811      * @return json all poche entries
 812      */
 813     public function export()
 814     {
 815         $entries = $this->store->retrieveAll($this->user->getId());
 816         echo $this->tpl->render('export.twig', array(
 817             'export' => Tools::renderJson($entries),
 818         ));
 819         Tools::logm('export view');
 820     }
 821
 822     /**
 823      * Checks online the latest version of poche and cache it
 824      * @param  string $which 'prod' or 'dev'
 825      * @return string        latest $which version
 826      */
 827     private function getPocheVersion($which = 'prod')
 828     {
 829         $cache_file = CACHE . '/' . $which;
 830
 831         # checks if the cached version file exists
 832         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 833            $version = file_get_contents($cache_file);
 834         } else {
 835            $version = file_get_contents('http://static.inthepoche.com/versions/' . $which);
 836            file_put_contents($cache_file, $version, LOCK_EX);
 837         }
 838         return $version;
 839     }
 840 }