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             $this->store->checkTags();
  53         }
  54     }
  55
  56     private function init()
  57     {
  58         Tools::initPhp();
  59         Session::$sessionName = 'poche';
  60         Session::init();
  61
  62         if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
  63             $this->user = $_SESSION['poche_user'];
  64         } else {
  65             # fake user, just for install & login screens
  66             $this->user = new User();
  67             $this->user->setConfig($this->getDefaultConfig());
  68         }
  69
  70         # l10n
  71         $language = $this->user->getConfigValue('language');
  72         putenv('LC_ALL=' . $language);
  73         setlocale(LC_ALL, $language);
  74         bindtextdomain($language, LOCALE);
  75         textdomain($language);
  76
  77         # Pagination
  78         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
  79
  80         # Set up theme
  81         $themeDirectory = $this->user->getConfigValue('theme');
  82
  83         if ($themeDirectory === false) {
  84             $themeDirectory = DEFAULT_THEME;
  85         }
  86
  87         $this->currentTheme = $themeDirectory;
  88
  89         # Set up language
  90         $languageDirectory = $this->user->getConfigValue('language');
  91
  92         if ($languageDirectory === false) {
  93             $languageDirectory = DEFAULT_THEME;
  94         }
  95
  96         $this->currentLanguage = $languageDirectory;
  97     }
  98
  99     public function configFileIsAvailable() {
 100         if (! self::$configFileAvailable) {
 101             $this->notInstalledMessage[] = 'You have to rename inc/poche/config.inc.php.new to inc/poche/config.inc.php.';
 102
 103             return false;
 104         }
 105
 106         return true;
 107     }
 108
 109     public function themeIsInstalled() {
 110         $passTheme = TRUE;
 111         # Twig is an absolute requirement for Poche to function. Abort immediately if the Composer installer hasn't been run yet
 112         if (! self::$canRenderTemplates) {
 113             $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>';
 114             $passTheme = FALSE;
 115         }
 116
 117         if (! is_writable(CACHE)) {
 118             $this->notInstalledMessage[] = 'You don\'t have write access on cache directory.';
 119
 120             self::$canRenderTemplates = false;
 121
 122             $passTheme = FALSE;
 123         }
 124
 125         # Check if the selected theme and its requirements are present
 126         if ($this->getTheme() != '' && ! is_dir(THEME . '/' . $this->getTheme())) {
 127             $this->notInstalledMessage[] = 'The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (Missing directory: ' . THEME . '/' . $this->getTheme() . ')';
 128
 129             self::$canRenderTemplates = false;
 130
 131             $passTheme = FALSE;
 132         }
 133
 134         foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) {
 135             if (! is_dir(THEME . '/' . $requiredTheme)) {
 136                 $this->notInstalledMessage[] = 'The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')';
 137
 138                 self::$canRenderTemplates = false;
 139
 140                 $passTheme = FALSE;
 141             }
 142         }
 143
 144         if (!$passTheme) {
 145             return FALSE;
 146         }
 147
 148
 149         return true;
 150     }
 151
 152     /**
 153      * all checks before installation.
 154      * @todo move HTML to template
 155      * @return boolean
 156      */
 157     public function systemIsInstalled()
 158     {
 159         $msg = TRUE;
 160
 161         $configSalt = defined('SALT') ? constant('SALT') : '';
 162
 163         if (empty($configSalt)) {
 164             $this->notInstalledMessage[] = 'You have not yet filled in the SALT value in the config.inc.php file.';
 165             $msg = FALSE;
 166         }
 167         if (STORAGE == 'sqlite' && ! file_exists(STORAGE_SQLITE)) {
 168             Tools::logm('sqlite file doesn\'t exist');
 169             $this->notInstalledMessage[] = 'sqlite file doesn\'t exist, you can find it in install folder. Copy it in /db folder.';
 170             $msg = FALSE;
 171         }
 172         if (is_dir(ROOT . '/install') && ! DEBUG_POCHE) {
 173             $this->notInstalledMessage[] = 'you have to delete the /install folder before using poche.';
 174             $msg = FALSE;
 175         }
 176         if (STORAGE == 'sqlite' && ! is_writable(STORAGE_SQLITE)) {
 177             Tools::logm('you don\'t have write access on sqlite file');
 178             $this->notInstalledMessage[] = 'You don\'t have write access on sqlite file.';
 179             $msg = FALSE;
 180         }
 181
 182         if (! $msg) {
 183             return false;
 184         }
 185
 186         return true;
 187     }
 188
 189     public function getNotInstalledMessage() {
 190         return $this->notInstalledMessage;
 191     }
 192
 193     private function initTpl()
 194     {
 195         $loaderChain = new Twig_Loader_Chain();
 196
 197         # add the current theme as first to the loader chain so Twig will look there first for overridden template files
 198         try {
 199             $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . $this->getTheme()));
 200         } catch (Twig_Error_Loader $e) {
 201             # @todo isInstalled() should catch this, inject Twig later
 202             die('The currently selected theme (' . $this->getTheme() . ') does not seem to be properly installed (' . THEME . '/' . $this->getTheme() .' is missing)');
 203         }
 204
 205         # add all required themes to the loader chain
 206         foreach ($this->installedThemes[$this->getTheme()]['requires'] as $requiredTheme) {
 207             try {
 208                 $loaderChain->addLoader(new Twig_Loader_Filesystem(THEME . '/' . DEFAULT_THEME));
 209             } catch (Twig_Error_Loader $e) {
 210                 # @todo isInstalled() should catch this, inject Twig later
 211                 die('The required "' . $requiredTheme . '" theme is missing for the current theme (' . $this->getTheme() . ')');
 212             }
 213         }
 214
 215         if (DEBUG_POCHE) {
 216             $twig_params = array();
 217         } else {
 218             $twig_params = array('cache' => CACHE);
 219         }
 220
 221         $this->tpl = new Twig_Environment($loaderChain, $twig_params);
 222         $this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
 223
 224         # filter to display domain name of an url
 225         $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
 226         $this->tpl->addFilter($filter);
 227
 228         # filter for reading time
 229         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
 230         $this->tpl->addFilter($filter);
 231
 232         # filter for simple filenames in config view
 233         $filter = new Twig_SimpleFilter('getPrettyFilename', function($string) { return str_replace(ROOT, '', $string); });
 234         $this->tpl->addFilter($filter);
 235     }
 236
 237     private function install()
 238     {
 239         Tools::logm('poche still not installed');
 240         echo $this->tpl->render('install.twig', array(
 241             'token' => Session::getToken(),
 242             'theme' => $this->getTheme(),
 243             'poche_url' => Tools::getPocheUrl()
 244         ));
 245         if (isset($_GET['install'])) {
 246             if (($_POST['password'] == $_POST['password_repeat'])
 247                 && $_POST['password'] != "" && $_POST['login'] != "") {
 248                 # let's rock, install poche baby !
 249                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 250                 {
 251                     Session::logout();
 252                     Tools::logm('poche is now installed');
 253                     Tools::redirect();
 254                 }
 255             }
 256             else {
 257                 Tools::logm('error during installation');
 258                 Tools::redirect();
 259             }
 260         }
 261         exit();
 262     }
 263
 264     public function getTheme() {
 265         return $this->currentTheme;
 266     }
 267
 268     public function getLanguage() {
 269         return $this->currentLanguage;
 270     }
 271
 272     public function getInstalledThemes() {
 273         $handle = opendir(THEME);
 274         $themes = array();
 275
 276         while (($theme = readdir($handle)) !== false) {
 277             # Themes are stored in a directory, so all directory names are themes
 278             # @todo move theme installation data to database
 279             if (! is_dir(THEME . '/' . $theme) || in_array($theme, array('..', '.'))) {
 280                 continue;
 281             }
 282
 283             $current = false;
 284
 285             if ($theme === $this->getTheme()) {
 286                 $current = true;
 287             }
 288
 289             $themes[] = array('name' => $theme, 'current' => $current);
 290         }
 291
 292         sort($themes);
 293         return $themes;
 294     }
 295
 296     public function getInstalledLanguages() {
 297         $handle = opendir(LOCALE);
 298         $languages = array();
 299
 300         while (($language = readdir($handle)) !== false) {
 301             # Languages are stored in a directory, so all directory names are languages
 302             # @todo move language installation data to database
 303             if (! is_dir(LOCALE . '/' . $language) || in_array($language, array('..', '.'))) {
 304                 continue;
 305             }
 306
 307             $current = false;
 308
 309             if ($language === $this->getLanguage()) {
 310                 $current = true;
 311             }
 312
 313             $languages[] = array('name' => $language, 'current' => $current);
 314         }
 315
 316         return $languages;
 317     }
 318
 319     public function getDefaultConfig()
 320     {
 321         return array(
 322             'pager' => PAGINATION,
 323             'language' => LANG,
 324             'theme' => DEFAULT_THEME
 325         );
 326     }
 327
 328     protected function getPageContent(Url $url)
 329     {
 330         $options = array('http' => array('user_agent' => 'poche'));
 331         if (isset($_SERVER['AUTH_TYPE']) && "basic" === strtolower($_SERVER['AUTH_TYPE'])) {
 332             $options['http']['header'] = sprintf(
 333                 "Authorization: Basic %s",
 334                 base64_encode(
 335                     sprintf('%s:%s', $_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'])
 336                 )
 337             );
 338         }
 339         $context = stream_context_create($options);
 340         $json = file_get_contents(Tools::getPocheUrl() . '/inc/3rdparty/makefulltextfeed.php?url='.urlencode($url->getUrl()).'&max=5&links=preserve&exc=&format=json&submit=Create+Feed', false, $context);
 341         return json_decode($json, true);
 342     }
 343
 344     /**
 345      * Call action (mark as fav, archive, delete, etc.)
 346      */
 347     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE)
 348     {
 349         switch ($action)
 350         {
 351             case 'add':
 352                 $content = $this->getPageContent($url);
 353                 $title = $content['rss']['channel']['item']['title'];
 354                 $body = $content['rss']['channel']['item']['description'];
 355
 356                 if ($this->store->add($url->getUrl(), $title, $body, $this->user->getId())) {
 357                     Tools::logm('add link ' . $url->getUrl());
 358                     $sequence = '';
 359                     if (STORAGE == 'postgres') {
 360                         $sequence = 'entries_id_seq';
 361                     }
 362                     $last_id = $this->store->getLastId($sequence);
 363                     if (DOWNLOAD_PICTURES) {
 364                         $content = filtre_picture($body, $url->getUrl(), $last_id);
 365                         Tools::logm('updating content article');
 366                         $this->store->updateContent($last_id, $content, $this->user->getId());
 367                     }
 368                     if (!$import) {
 369                         $this->messages->add('s', _('the link has been added successfully'));
 370                     }
 371                 }
 372                 else {
 373                     if (!$import) {
 374                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 375                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 376                     }
 377                 }
 378
 379                 if (!$import) {
 380                     if ($autoclose == TRUE) {
 381                       Tools::redirect('?view=home');
 382                     } else {
 383                       Tools::redirect('?view=home&closewin=true');
 384                     }
 385                 }
 386                 break;
 387             case 'delete':
 388                 $msg = 'delete link #' . $id;
 389                 if ($this->store->deleteById($id, $this->user->getId())) {
 390                     if (DOWNLOAD_PICTURES) {
 391                         remove_directory(ABS_PATH . $id);
 392                     }
 393                     $this->messages->add('s', _('the link has been deleted successfully'));
 394                 }
 395                 else {
 396                     $this->messages->add('e', _('the link wasn\'t deleted'));
 397                     $msg = 'error : can\'t delete link #' . $id;
 398                 }
 399                 Tools::logm($msg);
 400                 Tools::redirect('?');
 401                 break;
 402             case 'toggle_fav' :
 403                 $this->store->favoriteById($id, $this->user->getId());
 404                 Tools::logm('mark as favorite link #' . $id);
 405                 if (!$import) {
 406                     Tools::redirect();
 407                 }
 408                 break;
 409             case 'toggle_archive' :
 410                 $this->store->archiveById($id, $this->user->getId());
 411                 Tools::logm('archive link #' . $id);
 412                 if (!$import) {
 413                     Tools::redirect();
 414                 }
 415                 break;
 416             case 'add_tag' :
 417                 $tags = explode(',', $_POST['value']);
 418                 $entry_id = $_POST['entry_id'];
 419                 foreach($tags as $key => $tag_value) {
 420                     $value = trim($tag_value);
 421                     $tag = $this->store->retrieveTagByValue($value);
 422
 423                     if (is_null($tag)) {
 424                         # we create the tag
 425                         $tag = $this->store->createTag($value);
 426                         $sequence = '';
 427                         if (STORAGE == 'postgres') {
 428                             $sequence = 'tags_id_seq';
 429                         }
 430                         $tag_id = $this->store->getLastId($sequence);
 431                     }
 432                     else {
 433                         $tag_id = $tag['id'];
 434                     }
 435
 436                     # we assign the tag to the article
 437                     $this->store->setTagToEntry($tag_id, $entry_id);
 438                 }
 439                 Tools::redirect();
 440                 break;
 441             case 'remove_tag' :
 442                 $tag_id = $_GET['tag_id'];
 443                 $this->store->removeTagForEntry($id, $tag_id);
 444                 Tools::redirect();
 445                 break;
 446             default:
 447                 break;
 448         }
 449     }
 450
 451     function displayView($view, $id = 0)
 452     {
 453         $tpl_vars = array();
 454
 455         switch ($view)
 456         {
 457             case 'config':
 458                 $dev = $this->getPocheVersion('dev');
 459                 $prod = $this->getPocheVersion('prod');
 460                 $compare_dev = version_compare(POCHE, $dev);
 461                 $compare_prod = version_compare(POCHE, $prod);
 462                 $themes = $this->getInstalledThemes();
 463                 $languages = $this->getInstalledLanguages();
 464                 $token = $this->user->getConfigValue('token');
 465                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 466                 $tpl_vars = array(
 467                     'themes' => $themes,
 468                     'languages' => $languages,
 469                     'dev' => $dev,
 470                     'prod' => $prod,
 471                     'compare_dev' => $compare_dev,
 472                     'compare_prod' => $compare_prod,
 473                     'token' => $token,
 474                     'user_id' => $this->user->getId(),
 475                     'http_auth' => $http_auth,
 476                 );
 477                 Tools::logm('config view');
 478                 break;
 479             case 'edit-tags':
 480                 # tags
 481                 $tags = $this->store->retrieveTagsByEntry($id);
 482                 $tpl_vars = array(
 483                     'entry_id' => $id,
 484                     'tags' => $tags,
 485                 );
 486                 break;
 487             case 'tag':
 488                 $entries = $this->store->retrieveEntriesByTag($id);
 489                 $tag = $this->store->retrieveTag($id);
 490                 $tpl_vars = array(
 491                     'tag' => $tag,
 492                     'entries' => $entries,
 493                 );
 494                 break;
 495             case 'tags':
 496                 $token = $this->user->getConfigValue('token');
 497                 $tags = $this->store->retrieveAllTags();
 498                 $tpl_vars = array(
 499                     'token' => $token,
 500                     'user_id' => $this->user->getId(),
 501                     'tags' => $tags,
 502                 );
 503                 break;
 504             case 'view':
 505                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 506                 if ($entry != NULL) {
 507                     Tools::logm('view link #' . $id);
 508                     $content = $entry['content'];
 509                     if (function_exists('tidy_parse_string')) {
 510                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 511                         $tidy->cleanRepair();
 512                         $content = $tidy->value;
 513                     }
 514
 515                     # flattr checking
 516                     $flattr = new FlattrItem();
 517                     $flattr->checkItem($entry['url'], $entry['id']);
 518
 519                     # tags
 520                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 521
 522                     $tpl_vars = array(
 523                         'entry' => $entry,
 524                         'content' => $content,
 525                         'flattr' => $flattr,
 526                         'tags' => $tags
 527                     );
 528                 }
 529                 else {
 530                     Tools::logm('error in view call : entry is null');
 531                 }
 532                 break;
 533             default: # home, favorites and archive views
 534                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 535                 $tpl_vars = array(
 536                     'entries' => '',
 537                     'page_links' => '',
 538                     'nb_results' => '',
 539                 );
 540
 541                 if (count($entries) > 0) {
 542                     $this->pagination->set_total(count($entries));
 543                     $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
 544                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 545                     $tpl_vars['entries'] = $datas;
 546                     $tpl_vars['page_links'] = $page_links;
 547                     $tpl_vars['nb_results'] = count($entries);
 548                 }
 549                 Tools::logm('display ' . $view . ' view');
 550                 break;
 551         }
 552
 553         return $tpl_vars;
 554     }
 555
 556     /**
 557      * update the password of the current user.
 558      * if MODE_DEMO is TRUE, the password can't be updated.
 559      * @todo add the return value
 560      * @todo set the new password in function header like this updatePassword($newPassword)
 561      * @return boolean
 562      */
 563     public function updatePassword()
 564     {
 565         if (MODE_DEMO) {
 566             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 567             Tools::logm('in demo mode, you can\'t do this');
 568             Tools::redirect('?view=config');
 569         }
 570         else {
 571             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 572                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 573                     $this->messages->add('s', _('your password has been updated'));
 574                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 575                     Session::logout();
 576                     Tools::logm('password updated');
 577                     Tools::redirect();
 578                 }
 579                 else {
 580                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 581                     Tools::redirect('?view=config');
 582                 }
 583             }
 584         }
 585     }
 586
 587     public function updateTheme()
 588     {
 589         # no data
 590         if (empty($_POST['theme'])) {
 591         }
 592
 593         # we are not going to change it to the current theme...
 594         if ($_POST['theme'] == $this->getTheme()) {
 595             $this->messages->add('w', _('still using the "' . $this->getTheme() . '" theme!'));
 596             Tools::redirect('?view=config');
 597         }
 598
 599         $themes = $this->getInstalledThemes();
 600         $actualTheme = false;
 601
 602         foreach ($themes as $theme) {
 603             if ($theme['name'] == $_POST['theme']) {
 604                 $actualTheme = true;
 605                 break;
 606             }
 607         }
 608
 609         if (! $actualTheme) {
 610             $this->messages->add('e', _('that theme does not seem to be installed'));
 611             Tools::redirect('?view=config');
 612         }
 613
 614         $this->store->updateUserConfig($this->user->getId(), 'theme', $_POST['theme']);
 615         $this->messages->add('s', _('you have changed your theme preferences'));
 616
 617         $currentConfig = $_SESSION['poche_user']->config;
 618         $currentConfig['theme'] = $_POST['theme'];
 619
 620         $_SESSION['poche_user']->setConfig($currentConfig);
 621
 622         Tools::redirect('?view=config');
 623     }
 624
 625     public function updateLanguage()
 626     {
 627         # no data
 628         if (empty($_POST['language'])) {
 629         }
 630
 631         # we are not going to change it to the current language...
 632         if ($_POST['language'] == $this->getLanguage()) {
 633             $this->messages->add('w', _('still using the "' . $this->getLanguage() . '" language!'));
 634             Tools::redirect('?view=config');
 635         }
 636
 637         $languages = $this->getInstalledLanguages();
 638         $actualLanguage = false;
 639
 640         foreach ($languages as $language) {
 641             if ($language['name'] == $_POST['language']) {
 642                 $actualLanguage = true;
 643                 break;
 644             }
 645         }
 646
 647         if (! $actualLanguage) {
 648             $this->messages->add('e', _('that language does not seem to be installed'));
 649             Tools::redirect('?view=config');
 650         }
 651
 652         $this->store->updateUserConfig($this->user->getId(), 'language', $_POST['language']);
 653         $this->messages->add('s', _('you have changed your language preferences'));
 654
 655         $currentConfig = $_SESSION['poche_user']->config;
 656         $currentConfig['language'] = $_POST['language'];
 657
 658         $_SESSION['poche_user']->setConfig($currentConfig);
 659
 660         Tools::redirect('?view=config');
 661     }
 662
 663     /**
 664      * get credentials from differents sources
 665      * it redirects the user to the $referer link
 666      * @return array
 667      */
 668     private function credentials() {
 669         if(isset($_SERVER['PHP_AUTH_USER'])) {
 670             return array($_SERVER['PHP_AUTH_USER'],'php_auth');
 671         }
 672         if(!empty($_POST['login']) && !empty($_POST['password'])) {
 673             return array($_POST['login'],$_POST['password']);
 674         }
 675         if(isset($_SERVER['REMOTE_USER'])) {
 676             return array($_SERVER['REMOTE_USER'],'http_auth');
 677         }
 678
 679         return array(false,false);
 680      }
 681
 682     /**
 683      * checks if login & password are correct and save the user in session.
 684      * it redirects the user to the $referer link
 685      * @param  string $referer the url to redirect after login
 686      * @todo add the return value
 687      * @return boolean
 688      */
 689     public function login($referer)
 690     {
 691         list($login,$password)=$this->credentials();
 692         if($login === false || $password === false) {
 693             $this->messages->add('e', _('login failed: you have to fill all fields'));
 694             Tools::logm('login failed');
 695             Tools::redirect();
 696         }
 697         if (!empty($login) && !empty($password)) {
 698             $user = $this->store->login($login, Tools::encodeString($password . $login));
 699             if ($user != array()) {
 700                 # Save login into Session
 701                 $longlastingsession = isset($_POST['longlastingsession']);
 702                 Session::login($user['username'], $user['password'], $login, Tools::encodeString($password . $login), $longlastingsession, array('poche_user' => new User($user)));
 703                 $this->messages->add('s', _('welcome to your poche'));
 704                 Tools::logm('login successful');
 705                 Tools::redirect($referer);
 706             }
 707             $this->messages->add('e', _('login failed: bad login or password'));
 708             Tools::logm('login failed');
 709             Tools::redirect();
 710         }
 711     }
 712
 713     /**
 714      * log out the poche user. It cleans the session.
 715      * @todo add the return value
 716      * @return boolean
 717      */
 718     public function logout()
 719     {
 720         $this->user = array();
 721         Session::logout();
 722         $this->messages->add('s', _('see you soon!'));
 723         Tools::logm('logout');
 724         Tools::redirect();
 725     }
 726
 727     /**
 728      * import from Instapaper. poche needs a ./instapaper-export.html file
 729      * @todo add the return value
 730      * @param string $targetFile the file used for importing
 731      * @return boolean
 732      */
 733     private function importFromInstapaper($targetFile)
 734     {
 735         # TODO gestion des articles favs
 736         $html = new simple_html_dom();
 737         $html->load_file($targetFile);
 738         Tools::logm('starting import from instapaper');
 739
 740         $read = 0;
 741         $errors = array();
 742         foreach($html->find('ol') as $ul)
 743         {
 744             foreach($ul->find('li') as $li)
 745             {
 746                 $a = $li->find('a');
 747                 $url = new Url(base64_encode($a[0]->href));
 748                 $this->action('add', $url, 0, TRUE);
 749                 if ($read == '1') {
 750                     $sequence = '';
 751                     if (STORAGE == 'postgres') {
 752                         $sequence = 'entries_id_seq';
 753                     }
 754                     $last_id = $this->store->getLastId($sequence);
 755                     $this->action('toggle_archive', $url, $last_id, TRUE);
 756                 }
 757             }
 758
 759             # the second <ol> is for read links
 760             $read = 1;
 761         }
 762         $this->messages->add('s', _('import from instapaper completed'));
 763         Tools::logm('import from instapaper completed');
 764         Tools::redirect();
 765     }
 766
 767     /**
 768      * import from Pocket. poche needs a ./ril_export.html file
 769      * @todo add the return value
 770      * @param string $targetFile the file used for importing
 771      * @return boolean
 772      */
 773     private function importFromPocket($targetFile)
 774     {
 775         # TODO gestion des articles favs
 776         $html = new simple_html_dom();
 777         $html->load_file($targetFile);
 778         Tools::logm('starting import from pocket');
 779
 780         $read = 0;
 781         $errors = array();
 782         foreach($html->find('ul') as $ul)
 783         {
 784             foreach($ul->find('li') as $li)
 785             {
 786                 $a = $li->find('a');
 787                 $url = new Url(base64_encode($a[0]->href));
 788                 $this->action('add', $url, 0, TRUE);
 789                 if ($read == '1') {
 790                         $sequence = '';
 791                         if (STORAGE == 'postgres') {
 792                             $sequence = 'entries_id_seq';
 793                         }
 794                     $last_id = $this->store->getLastId($sequence);
 795                     $this->action('toggle_archive', $url, $last_id, TRUE);
 796                 }
 797             }
 798
 799             # the second <ul> is for read links
 800             $read = 1;
 801         }
 802         $this->messages->add('s', _('import from pocket completed'));
 803         Tools::logm('import from pocket completed');
 804         Tools::redirect();
 805     }
 806
 807     /**
 808      * import from Readability. poche needs a ./readability file
 809      * @todo add the return value
 810      * @param string $targetFile the file used for importing
 811      * @return boolean
 812      */
 813     private function importFromReadability($targetFile)
 814     {
 815         # TODO gestion des articles lus / favs
 816         $str_data = file_get_contents($targetFile);
 817         $data = json_decode($str_data,true);
 818         Tools::logm('starting import from Readability');
 819         $count = 0;
 820         foreach ($data as $key => $value) {
 821             $url = NULL;
 822             $favorite = FALSE;
 823             $archive = FALSE;
 824             foreach ($value as $item) {
 825                 foreach ($item as $attr => $value) {
 826                     if ($attr == 'article__url') {
 827                         $url = new Url(base64_encode($value));
 828                     }
 829                     $sequence = '';
 830                     if (STORAGE == 'postgres') {
 831                         $sequence = 'entries_id_seq';
 832                     }
 833                     if ($value == 'true') {
 834                         if ($attr == 'favorite') {
 835                             $favorite = TRUE;
 836                         }
 837                         if ($attr == 'archive') {
 838                             $archive = TRUE;
 839                         }
 840                     }
 841                 }
 842
 843                 # we can add the url
 844                 if (!is_null($url) && $url->isCorrect()) {
 845                     $this->action('add', $url, 0, TRUE);
 846                     $count++;
 847                     if ($favorite) {
 848                         $last_id = $this->store->getLastId($sequence);
 849                         $this->action('toggle_fav', $url, $last_id, TRUE);
 850                     }
 851                     if ($archive) {
 852                         $last_id = $this->store->getLastId($sequence);
 853                         $this->action('toggle_archive', $url, $last_id, TRUE);
 854                     }
 855                 }
 856             }
 857         }
 858         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 859         Tools::logm('import from Readability completed');
 860         Tools::redirect();
 861     }
 862
 863     /**
 864      * import from Poche exported file
 865      * @param string $targetFile the file used for importing
 866      * @return boolean
 867      */
 868     private function importFromPoche($targetFile)
 869     {
 870         $str_data = file_get_contents($targetFile);
 871         $data = json_decode($str_data,true);
 872         Tools::logm('starting import from Poche');
 873
 874
 875         $sequence = '';
 876         if (STORAGE == 'postgres') {
 877             $sequence = 'entries_id_seq';
 878         }
 879
 880         $count = 0;
 881         foreach ($data as $value) {
 882
 883             $url = new Url(base64_encode($value['url']));
 884             $favorite = ($value['is_fav'] == -1);
 885             $archive = ($value['is_read'] == -1);
 886
 887             # we can add the url
 888             if (!is_null($url) && $url->isCorrect()) {
 889
 890                 $this->action('add', $url, 0, TRUE);
 891
 892                 $count++;
 893                 if ($favorite) {
 894                     $last_id = $this->store->getLastId($sequence);
 895                     $this->action('toggle_fav', $url, $last_id, TRUE);
 896                 }
 897                 if ($archive) {
 898                     $last_id = $this->store->getLastId($sequence);
 899                     $this->action('toggle_archive', $url, $last_id, TRUE);
 900                 }
 901             }
 902
 903         }
 904         $this->messages->add('s', _('import from Poche completed. ' . $count . ' new links.'));
 905         Tools::logm('import from Poche completed');
 906         Tools::redirect();
 907     }
 908
 909     /**
 910      * import datas into your poche
 911      * @param  string $from name of the service to import : pocket, instapaper or readability
 912      * @todo add the return value
 913      * @return boolean
 914      */
 915     public function import($from)
 916     {
 917         $providers = array(
 918             'pocket' => 'importFromPocket',
 919             'readability' => 'importFromReadability',
 920             'instapaper' => 'importFromInstapaper',
 921             'poche' => 'importFromPoche',
 922         );
 923
 924         if (! isset($providers[$from])) {
 925             $this->messages->add('e', _('Unknown import provider.'));
 926             Tools::redirect();
 927         }
 928
 929         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
 930         $targetFile = constant($targetDefinition);
 931
 932         if (! defined($targetDefinition)) {
 933             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
 934             Tools::redirect();
 935         }
 936
 937         if (! file_exists($targetFile)) {
 938             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
 939             Tools::redirect();
 940         }
 941
 942         $this->$providers[$from]($targetFile);
 943     }
 944
 945     /**
 946      * export poche entries in json
 947      * @return json all poche entries
 948      */
 949     public function export()
 950     {
 951         $entries = $this->store->retrieveAll($this->user->getId());
 952         echo $this->tpl->render('export.twig', array(
 953             'export' => Tools::renderJson($entries),
 954         ));
 955         Tools::logm('export view');
 956     }
 957
 958     /**
 959      * Checks online the latest version of poche and cache it
 960      * @param  string $which 'prod' or 'dev'
 961      * @return string        latest $which version
 962      */
 963     private function getPocheVersion($which = 'prod')
 964     {
 965         $cache_file = CACHE . '/' . $which;
 966
 967         # checks if the cached version file exists
 968         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 969            $version = file_get_contents($cache_file);
 970         } else {
 971            $version = file_get_contents('http://static.inthepoche.com/versions/' . $which);
 972            file_put_contents($cache_file, $version, LOCK_EX);
 973         }
 974         return $version;
 975     }
 976
 977     public function generateToken()
 978     {
 979         if (ini_get('open_basedir') === '') {
 980             $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15);
 981         }
 982         else {
 983             $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20);
 984         }
 985
 986         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 987         $currentConfig = $_SESSION['poche_user']->config;
 988         $currentConfig['token'] = $token;
 989         $_SESSION['poche_user']->setConfig($currentConfig);
 990     }
 991
 992     public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
 993     {
 994         $allowed_types = array('home', 'fav', 'archive', 'tag');
 995         $config = $this->store->getConfigUser($user_id);
 996
 997         if (!in_array($type, $allowed_types) ||
 998             $token != $config['token']) {
 999             die(_('Uh, there is a problem while generating feeds.'));
1000         }
1001         // Check the token
1002
1003         $feed = new FeedWriter(RSS2);
1004         $feed->setTitle('poche - ' . $type . ' feed');
1005         $feed->setLink(Tools::getPocheUrl());
1006         $feed->setChannelElement('updated', date(DATE_RSS , time()));
1007         $feed->setChannelElement('author', 'poche');
1008
1009         if ($type == 'tag') {
1010             $entries = $this->store->retrieveEntriesByTag($tag_id);
1011         }
1012         else {
1013             $entries = $this->store->getEntriesByView($type, $user_id);
1014         }
1015
1016         if (count($entries) > 0) {
1017             foreach ($entries as $entry) {
1018                 $newItem = $feed->createNewItem();
1019                 $newItem->setTitle($entry['title']);
1020                 $newItem->setLink(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
1021                 $newItem->setDate(time());
1022                 $newItem->setDescription($entry['content']);
1023                 $feed->addItem($newItem);
1024             }
1025         }
1026
1027         $feed->genarateFeed();
1028         exit;
1029     }
1030 }