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 $user;
  14     public $store;
  15     public $tpl;
  16     public $messages;
  17     public $pagination;
  18
  19     function __construct()
  20     {
  21         $this->initTpl();
  22         if (!$this->checkBeforeInstall()) {
  23             exit;
  24         }
  25         $this->store = new Database();
  26         $this->init();
  27         $this->messages = new Messages();
  28
  29         # installation
  30         if(!$this->store->isInstalled())
  31         {
  32             $this->install();
  33         }
  34     }
  35
  36     /**
  37      * all checks before installation.
  38      * @return boolean
  39      */
  40     private function checkBeforeInstall()
  41     {
  42         $msg = '';
  43         $allIsGood = TRUE;
  44
  45         if (!is_writable(CACHE)) {
  46             Tools::logm('you don\'t have write access on cache directory');
  47             die('You don\'t have write access on cache directory.');
  48         }
  49         else if (file_exists('./install/update.php') && !DEBUG_POCHE) {
  50             $msg = 'A poche update is needed. Please execute this update <a href="install/update.php">by clicking here</a>. If you have already do the update, please delete /install folder.';
  51             $allIsGood = FALSE;
  52         }
  53         else if (file_exists('./install') && !DEBUG_POCHE) {
  54             $msg = 'If you want to update your poche, you just have to delete /install folder. <br />To install your poche with sqlite, copy /install/poche.sqlite in /db and delete the folder /install. you have to delete the /install folder before using poche.';
  55             $allIsGood = FALSE;
  56         }
  57         else if (STORAGE == 'sqlite' && !is_writable(STORAGE_SQLITE)) {
  58             Tools::logm('you don\'t have write access on sqlite file');
  59             $msg = 'You don\'t have write access on sqlite file.';
  60             $allIsGood = FALSE;
  61         }
  62
  63         if (!$allIsGood) {
  64             echo $this->tpl->render('error.twig', array(
  65                 'msg' => $msg
  66             ));
  67         }
  68
  69         return $allIsGood;
  70     }
  71
  72     private function initTpl()
  73     {
  74         # template engine
  75         $loader = new Twig_Loader_Filesystem(TPL);
  76         if (DEBUG_POCHE) {
  77             $twig_params = array();
  78         }
  79         else {
  80             $twig_params = array('cache' => CACHE);
  81         }
  82         $this->tpl = new Twig_Environment($loader, $twig_params);
  83         $this->tpl->addExtension(new Twig_Extensions_Extension_I18n());
  84         # filter to display domain name of an url
  85         $filter = new Twig_SimpleFilter('getDomain', 'Tools::getDomain');
  86         $this->tpl->addFilter($filter);
  87
  88         # filter for reading time
  89         $filter = new Twig_SimpleFilter('getReadingTime', 'Tools::getReadingTime');
  90         $this->tpl->addFilter($filter);
  91     }
  92
  93     private function init()
  94     {
  95         Tools::initPhp();
  96         Session::init();
  97
  98         if (isset($_SESSION['poche_user']) && $_SESSION['poche_user'] != array()) {
  99             $this->user = $_SESSION['poche_user'];
 100         }
 101         else {
 102             # fake user, just for install & login screens
 103             $this->user = new User();
 104             $this->user->setConfig($this->getDefaultConfig());
 105         }
 106
 107         # l10n
 108         $language = $this->user->getConfigValue('language');
 109         putenv('LC_ALL=' . $language);
 110         setlocale(LC_ALL, $language);
 111         bindtextdomain($language, LOCALE);
 112         textdomain($language);
 113
 114         # Pagination
 115         $this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
 116     }
 117
 118     private function install()
 119     {
 120         Tools::logm('poche still not installed');
 121         echo $this->tpl->render('install.twig', array(
 122             'token' => Session::getToken()
 123         ));
 124         if (isset($_GET['install'])) {
 125             if (($_POST['password'] == $_POST['password_repeat'])
 126                 && $_POST['password'] != "" && $_POST['login'] != "") {
 127                 # let's rock, install poche baby !
 128                 if ($this->store->install($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login'])))
 129                 {
 130                     Session::logout();
 131                     Tools::logm('poche is now installed');
 132                     Tools::redirect();
 133                 }
 134             }
 135             else {
 136                 Tools::logm('error during installation');
 137                 Tools::redirect();
 138             }
 139         }
 140         exit();
 141     }
 142
 143     public function getDefaultConfig()
 144     {
 145         return array(
 146             'pager' => PAGINATION,
 147             'language' => LANG,
 148             );
 149     }
 150
 151     /**
 152      * Call action (mark as fav, archive, delete, etc.)
 153      */
 154     public function action($action, Url $url, $id = 0, $import = FALSE)
 155     {
 156         switch ($action)
 157         {
 158             case 'add':
 159                 if($parametres_url = $url->fetchContent()) {
 160                     if ($this->store->add($url->getUrl(), $parametres_url['title'], $parametres_url['content'], $this->user->getId())) {
 161                         Tools::logm('add link ' . $url->getUrl());
 162                         $sequence = '';
 163                         if (STORAGE == 'postgres') {
 164                             $sequence = 'entries_id_seq';
 165                         }
 166                         $last_id = $this->store->getLastId($sequence);
 167                         if (DOWNLOAD_PICTURES) {
 168                             $content = filtre_picture($parametres_url['content'], $url->getUrl(), $last_id);
 169                             Tools::logm('updating content article');
 170                             $this->store->updateContent($last_id, $content, $this->user->getId());
 171                         }
 172                         if (!$import) {
 173                             $this->messages->add('s', _('the link has been added successfully'));
 174                         }
 175                     }
 176                     else {
 177                         if (!$import) {
 178                             $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 179                             Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 180                         }
 181                     }
 182                 }
 183                 else {
 184                     if (!$import) {
 185                         $this->messages->add('e', _('error during fetching content : the link wasn\'t added'));
 186                         Tools::logm('error during content fetch ' . $url->getUrl());
 187                     }
 188                 }
 189                 if (!$import) {
 190                     Tools::redirect();
 191                 }
 192                 break;
 193             case 'delete':
 194                 $msg = 'delete link #' . $id;
 195                 if ($this->store->deleteById($id, $this->user->getId())) {
 196                     if (DOWNLOAD_PICTURES) {
 197                         remove_directory(ABS_PATH . $id);
 198                     }
 199                     $this->messages->add('s', _('the link has been deleted successfully'));
 200                 }
 201                 else {
 202                     $this->messages->add('e', _('the link wasn\'t deleted'));
 203                     $msg = 'error : can\'t delete link #' . $id;
 204                 }
 205                 Tools::logm($msg);
 206                 Tools::redirect('?');
 207                 break;
 208             case 'toggle_fav' :
 209                 $this->store->favoriteById($id, $this->user->getId());
 210                 Tools::logm('mark as favorite link #' . $id);
 211                 if (!$import) {
 212                     Tools::redirect();
 213                 }
 214                 break;
 215             case 'toggle_archive' :
 216                 $this->store->archiveById($id, $this->user->getId());
 217                 Tools::logm('archive link #' . $id);
 218                 if (!$import) {
 219                     Tools::redirect();
 220                 }
 221                 break;
 222             default:
 223                 Tools::logm('action ' . $action . 'doesn\'t exist');
 224                 break;
 225         }
 226     }
 227
 228     function displayView($view, $id = 0)
 229     {
 230         $tpl_vars = array();
 231
 232         switch ($view)
 233         {
 234             case 'config':
 235                 $dev = $this->getPocheVersion('dev');
 236                 $prod = $this->getPocheVersion('prod');
 237                 $compare_dev = version_compare(POCHE_VERSION, $dev);
 238                 $compare_prod = version_compare(POCHE_VERSION, $prod);
 239                 $tpl_vars = array(
 240                     'dev' => $dev,
 241                     'prod' => $prod,
 242                     'compare_dev' => $compare_dev,
 243                     'compare_prod' => $compare_prod,
 244                 );
 245                 Tools::logm('config view');
 246                 break;
 247             case 'view':
 248                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 249                 if ($entry != NULL) {
 250                     Tools::logm('view link #' . $id);
 251                     $content = $entry['content'];
 252                     if (function_exists('tidy_parse_string')) {
 253                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 254                         $tidy->cleanRepair();
 255                         $content = $tidy->value;
 256                     }
 257                     $tpl_vars = array(
 258                         'entry' => $entry,
 259                         'content' => $content,
 260                     );
 261                 }
 262                 else {
 263                     Tools::logm('error in view call : entry is null');
 264                 }
 265                 break;
 266             default: # home view
 267                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 268                 $this->pagination->set_total(count($entries));
 269                 $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
 270                 $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 271                 $tpl_vars = array(
 272                     'entries' => $datas,
 273                     'page_links' => $page_links,
 274                 );
 275                 Tools::logm('display ' . $view . ' view');
 276                 break;
 277         }
 278
 279         return $tpl_vars;
 280     }
 281
 282     /**
 283      * update the password of the current user.
 284      * if MODE_DEMO is TRUE, the password can't be updated.
 285      * @todo add the return value
 286      * @todo set the new password in function header like this updatePassword($newPassword)
 287      * @return boolean
 288      */
 289     public function updatePassword()
 290     {
 291         if (MODE_DEMO) {
 292             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 293             Tools::logm('in demo mode, you can\'t do this');
 294             Tools::redirect('?view=config');
 295         }
 296         else {
 297             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 298                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 299                     $this->messages->add('s', _('your password has been updated'));
 300                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 301                     Session::logout();
 302                     Tools::logm('password updated');
 303                     Tools::redirect();
 304                 }
 305                 else {
 306                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 307                     Tools::redirect('?view=config');
 308                 }
 309             }
 310         }
 311     }
 312
 313     /**
 314      * checks if login & password are correct and save the user in session.
 315      * it redirects the user to the $referer link
 316      * @param  string $referer the url to redirect after login
 317      * @todo add the return value
 318      * @return boolean
 319      */
 320     public function login($referer)
 321     {
 322         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 323             $user = $this->store->login($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login']));
 324             if ($user != array()) {
 325                 # Save login into Session
 326                 Session::login($user['username'], $user['password'], $_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login']), array('poche_user' => new User($user)));
 327
 328                 $this->messages->add('s', _('welcome to your poche'));
 329                 if (!empty($_POST['longlastingsession'])) {
 330                     $_SESSION['longlastingsession'] = 31536000;
 331                     $_SESSION['expires_on'] = time() + $_SESSION['longlastingsession'];
 332                     session_set_cookie_params($_SESSION['longlastingsession']);
 333                 } else {
 334                     session_set_cookie_params(0);
 335                 }
 336                 session_regenerate_id(true);
 337                 Tools::logm('login successful');
 338                 Tools::redirect($referer);
 339             }
 340             $this->messages->add('e', _('login failed: bad login or password'));
 341             Tools::logm('login failed');
 342             Tools::redirect();
 343         } else {
 344             $this->messages->add('e', _('login failed: you have to fill all fields'));
 345             Tools::logm('login failed');
 346             Tools::redirect();
 347         }
 348     }
 349
 350     /**
 351      * log out the poche user. It cleans the session.
 352      * @todo add the return value
 353      * @return boolean
 354      */
 355     public function logout()
 356     {
 357         $this->user = array();
 358         Session::logout();
 359         $this->messages->add('s', _('see you soon!'));
 360         Tools::logm('logout');
 361         Tools::redirect();
 362     }
 363
 364     /**
 365      * import from Instapaper. poche needs a ./instapaper-export.html file
 366      * @todo add the return value
 367      * @return boolean
 368      */
 369     private function importFromInstapaper()
 370     {
 371         # TODO gestion des articles favs
 372         $html = new simple_html_dom();
 373         $html->load_file('./instapaper-export.html');
 374         Tools::logm('starting import from instapaper');
 375
 376         $read = 0;
 377         $errors = array();
 378         foreach($html->find('ol') as $ul)
 379         {
 380             foreach($ul->find('li') as $li)
 381             {
 382                 $a = $li->find('a');
 383                 $url = new Url(base64_encode($a[0]->href));
 384                 $this->action('add', $url, 0, TRUE);
 385                 if ($read == '1') {
 386                     $sequence = '';
 387                     if (STORAGE == 'postgres') {
 388                         $sequence = 'entries_id_seq';
 389                     }
 390                     $last_id = $this->store->getLastId($sequence);
 391                     $this->action('toggle_archive', $url, $last_id, TRUE);
 392                 }
 393             }
 394
 395             # the second <ol> is for read links
 396             $read = 1;
 397         }
 398         $this->messages->add('s', _('import from instapaper completed'));
 399         Tools::logm('import from instapaper completed');
 400         Tools::redirect();
 401     }
 402
 403     /**
 404      * import from Pocket. poche needs a ./ril_export.html file
 405      * @todo add the return value
 406      * @return boolean
 407      */
 408     private function importFromPocket()
 409     {
 410         # TODO gestion des articles favs
 411         $html = new simple_html_dom();
 412         $html->load_file('./ril_export.html');
 413         Tools::logm('starting import from pocket');
 414
 415         $read = 0;
 416         $errors = array();
 417         foreach($html->find('ul') as $ul)
 418         {
 419             foreach($ul->find('li') as $li)
 420             {
 421                 $a = $li->find('a');
 422                 $url = new Url(base64_encode($a[0]->href));
 423                 $this->action('add', $url, 0, TRUE);
 424                 if ($read == '1') {
 425                         $sequence = '';
 426                         if (STORAGE == 'postgres') {
 427                             $sequence = 'entries_id_seq';
 428                         }
 429                     $last_id = $this->store->getLastId($sequence);
 430                     $this->action('toggle_archive', $url, $last_id, TRUE);
 431                 }
 432             }
 433
 434             # the second <ul> is for read links
 435             $read = 1;
 436         }
 437         $this->messages->add('s', _('import from pocket completed'));
 438         Tools::logm('import from pocket completed');
 439         Tools::redirect();
 440     }
 441
 442     /**
 443      * import from Readability. poche needs a ./readability file
 444      * @todo add the return value
 445      * @return boolean
 446      */
 447     private function importFromReadability()
 448     {
 449         # TODO gestion des articles lus / favs
 450         $str_data = file_get_contents("./readability");
 451         $data = json_decode($str_data,true);
 452         Tools::logm('starting import from Readability');
 453         $count = 0;
 454         foreach ($data as $key => $value) {
 455             $url = NULL;
 456             $favorite = FALSE;
 457             $archive = FALSE;
 458             foreach ($value as $attr => $attr_value) {
 459                 if ($attr == 'article__url') {
 460                     $url = new Url(base64_encode($attr_value));
 461                 }
 462                 $sequence = '';
 463                 if (STORAGE == 'postgres') {
 464                     $sequence = 'entries_id_seq';
 465                 }
 466                 if ($attr_value == 'true') {
 467                     if ($attr == 'favorite') {
 468                         $favorite = TRUE;
 469                     }
 470                     if ($attr == 'archive') {
 471                         $archive = TRUE;
 472                     }
 473                 }
 474             }
 475             # we can add the url
 476             if (!is_null($url) && $url->isCorrect()) {
 477                 $this->action('add', $url, 0, TRUE);
 478                 $count++;
 479                 if ($favorite) {
 480                     $last_id = $this->store->getLastId($sequence);
 481                     $this->action('toggle_fav', $url, $last_id, TRUE);
 482                 }
 483                 if ($archive) {
 484                     $last_id = $this->store->getLastId($sequence);
 485                     $this->action('toggle_archive', $url, $last_id, TRUE);
 486                 }
 487             }
 488         }
 489         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 490         Tools::logm('import from Readability completed');
 491         Tools::redirect();
 492     }
 493
 494     /**
 495      * import datas into your poche
 496      * @param  string $from name of the service to import : pocket, instapaper or readability
 497      * @todo add the return value
 498      * @return boolean
 499      */
 500     public function import($from)
 501     {
 502         if ($from == 'pocket') {
 503             return $this->importFromPocket();
 504         }
 505         else if ($from == 'readability') {
 506             return $this->importFromReadability();
 507         }
 508         else if ($from == 'instapaper') {
 509             return $this->importFromInstapaper();
 510         }
 511     }
 512
 513     /**
 514      * export poche entries in json
 515      * @return json all poche entries
 516      */
 517     public function export()
 518     {
 519         $entries = $this->store->retrieveAll($this->user->getId());
 520         echo $this->tpl->render('export.twig', array(
 521             'export' => Tools::renderJson($entries),
 522         ));
 523         Tools::logm('export view');
 524     }
 525
 526     /**
 527      * Checks online the latest version of poche and cache it
 528      * @param  string $which 'prod' or 'dev'
 529      * @return string        latest $which version
 530      */
 531     private function getPocheVersion($which = 'prod')
 532     {
 533         $cache_file = CACHE . '/' . $which;
 534
 535         # checks if the cached version file exists
 536         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 537            $version = file_get_contents($cache_file);
 538         } else {
 539            $version = file_get_contents('http://static.inthepoche.com/versions/' . $which);
 540            file_put_contents($cache_file, $version, LOCK_EX);
 541         }
 542         return $version;
 543     }
 544 }