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 = '<h1>setup</h1><p><strong>It\'s your first time here?</strong> Please copy /install/poche.sqlite in db folder. Then, delete install folder.<br /><strong>If you have already installed poche</strong>, an update is needed <a href="install/update.php">by clicking here</a>.</p>';
  51             $allIsGood = FALSE;
  52         }
  53         else if (file_exists('./install') && !DEBUG_POCHE) {
  54             $msg = '<h1>setup</h1><p><strong>If you want to update your poche</strong>, you just have to delete /install folder. <br /><strong>To install your poche with sqlite</strong>, copy /install/poche.sqlite in /db and delete the folder /install. you have to delete the /install folder before using poche.</p>';
  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 = '<h1>error</h1><p>You don\'t have write access on sqlite file.</p>';
  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                 $content = $url->extract();
 160
 161                 if ($this->store->add($url->getUrl(), $content['title'], $content['body'], $this->user->getId())) {
 162                     Tools::logm('add link ' . $url->getUrl());
 163                     $sequence = '';
 164                     if (STORAGE == 'postgres') {
 165                         $sequence = 'entries_id_seq';
 166                     }
 167                     $last_id = $this->store->getLastId($sequence);
 168                     if (DOWNLOAD_PICTURES) {
 169                         $content = filtre_picture($content['body'], $url->getUrl(), $last_id);
 170                         Tools::logm('updating content article');
 171                         $this->store->updateContent($last_id, $content, $this->user->getId());
 172                     }
 173                     if (!$import) {
 174                         $this->messages->add('s', _('the link has been added successfully'));
 175                     }
 176                 }
 177                 else {
 178                     if (!$import) {
 179                         $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 180                         Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
 181                     }
 182                 }
 183
 184                 if (!$import) {
 185                     Tools::redirect('?view=home');
 186                 }
 187                 break;
 188             case 'delete':
 189                 $msg = 'delete link #' . $id;
 190                 if ($this->store->deleteById($id, $this->user->getId())) {
 191                     if (DOWNLOAD_PICTURES) {
 192                         remove_directory(ABS_PATH . $id);
 193                     }
 194                     $this->messages->add('s', _('the link has been deleted successfully'));
 195                 }
 196                 else {
 197                     $this->messages->add('e', _('the link wasn\'t deleted'));
 198                     $msg = 'error : can\'t delete link #' . $id;
 199                 }
 200                 Tools::logm($msg);
 201                 Tools::redirect('?');
 202                 break;
 203             case 'toggle_fav' :
 204                 $this->store->favoriteById($id, $this->user->getId());
 205                 Tools::logm('mark as favorite link #' . $id);
 206                 if (!$import) {
 207                     Tools::redirect();
 208                 }
 209                 break;
 210             case 'toggle_archive' :
 211                 $this->store->archiveById($id, $this->user->getId());
 212                 Tools::logm('archive link #' . $id);
 213                 if (!$import) {
 214                     Tools::redirect();
 215                 }
 216                 break;
 217             default:
 218                 break;
 219         }
 220     }
 221
 222     function displayView($view, $id = 0)
 223     {
 224         $tpl_vars = array();
 225
 226         switch ($view)
 227         {
 228             case 'config':
 229                 $dev = $this->getPocheVersion('dev');
 230                 $prod = $this->getPocheVersion('prod');
 231                 $compare_dev = version_compare(POCHE_VERSION, $dev);
 232                 $compare_prod = version_compare(POCHE_VERSION, $prod);
 233                 $tpl_vars = array(
 234                     'dev' => $dev,
 235                     'prod' => $prod,
 236                     'compare_dev' => $compare_dev,
 237                     'compare_prod' => $compare_prod,
 238                 );
 239                 Tools::logm('config view');
 240                 break;
 241             case 'view':
 242                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 243                 if ($entry != NULL) {
 244                     Tools::logm('view link #' . $id);
 245                     $content = $entry['content'];
 246                     if (function_exists('tidy_parse_string')) {
 247                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 248                         $tidy->cleanRepair();
 249                         $content = $tidy->value;
 250                     }
 251                     $tpl_vars = array(
 252                         'entry' => $entry,
 253                         'content' => $content,
 254                     );
 255                 }
 256                 else {
 257                     Tools::logm('error in view call : entry is null');
 258                 }
 259                 break;
 260             default: # home, favorites and archive views
 261                 $entries = $this->store->getEntriesByView($view, $this->user->getId());
 262                 $tpl_vars = array(
 263                     'entries' => '',
 264                     'page_links' => '',
 265                 );
 266                 if (count($entries) > 0) {
 267                     $this->pagination->set_total(count($entries));
 268                     $page_links = $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . '&');
 269                     $datas = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit());
 270                     $tpl_vars['entries'] = $datas;
 271                     $tpl_vars['page_links'] = $page_links;
 272                 }
 273                 Tools::logm('display ' . $view . ' view');
 274                 break;
 275         }
 276
 277         return $tpl_vars;
 278     }
 279
 280     /**
 281      * update the password of the current user.
 282      * if MODE_DEMO is TRUE, the password can't be updated.
 283      * @todo add the return value
 284      * @todo set the new password in function header like this updatePassword($newPassword)
 285      * @return boolean
 286      */
 287     public function updatePassword()
 288     {
 289         if (MODE_DEMO) {
 290             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 291             Tools::logm('in demo mode, you can\'t do this');
 292             Tools::redirect('?view=config');
 293         }
 294         else {
 295             if (isset($_POST['password']) && isset($_POST['password_repeat'])) {
 296                 if ($_POST['password'] == $_POST['password_repeat'] && $_POST['password'] != "") {
 297                     $this->messages->add('s', _('your password has been updated'));
 298                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($_POST['password'] . $this->user->getUsername()));
 299                     Session::logout();
 300                     Tools::logm('password updated');
 301                     Tools::redirect();
 302                 }
 303                 else {
 304                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 305                     Tools::redirect('?view=config');
 306                 }
 307             }
 308         }
 309     }
 310
 311     /**
 312      * checks if login & password are correct and save the user in session.
 313      * it redirects the user to the $referer link
 314      * @param  string $referer the url to redirect after login
 315      * @todo add the return value
 316      * @return boolean
 317      */
 318     public function login($referer)
 319     {
 320         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 321             $user = $this->store->login($_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login']));
 322             if ($user != array()) {
 323                 # Save login into Session
 324                 Session::login($user['username'], $user['password'], $_POST['login'], Tools::encodeString($_POST['password'] . $_POST['login']), array('poche_user' => new User($user)));
 325
 326                 $this->messages->add('s', _('welcome to your poche'));
 327                 if (!empty($_POST['longlastingsession'])) {
 328                     $_SESSION['longlastingsession'] = 31536000;
 329                     $_SESSION['expires_on'] = time() + $_SESSION['longlastingsession'];
 330                     session_set_cookie_params($_SESSION['longlastingsession']);
 331                 } else {
 332                     session_set_cookie_params(0);
 333                 }
 334                 session_regenerate_id(true);
 335                 Tools::logm('login successful');
 336                 Tools::redirect($referer);
 337             }
 338             $this->messages->add('e', _('login failed: bad login or password'));
 339             Tools::logm('login failed');
 340             Tools::redirect();
 341         } else {
 342             $this->messages->add('e', _('login failed: you have to fill all fields'));
 343             Tools::logm('login failed');
 344             Tools::redirect();
 345         }
 346     }
 347
 348     /**
 349      * log out the poche user. It cleans the session.
 350      * @todo add the return value
 351      * @return boolean
 352      */
 353     public function logout()
 354     {
 355         $this->user = array();
 356         Session::logout();
 357         $this->messages->add('s', _('see you soon!'));
 358         Tools::logm('logout');
 359         Tools::redirect();
 360     }
 361
 362     /**
 363      * import from Instapaper. poche needs a ./instapaper-export.html file
 364      * @todo add the return value
 365      * @param string $targetFile the file used for importing
 366      * @return boolean
 367      */
 368     private function importFromInstapaper($targetFile)
 369     {
 370         # TODO gestion des articles favs
 371         $html = new simple_html_dom();
 372         $html->load_file($targetFile);
 373         Tools::logm('starting import from instapaper');
 374
 375         $read = 0;
 376         $errors = array();
 377         foreach($html->find('ol') as $ul)
 378         {
 379             foreach($ul->find('li') as $li)
 380             {
 381                 $a = $li->find('a');
 382                 $url = new Url(base64_encode($a[0]->href));
 383                 $this->action('add', $url, 0, TRUE);
 384                 if ($read == '1') {
 385                     $sequence = '';
 386                     if (STORAGE == 'postgres') {
 387                         $sequence = 'entries_id_seq';
 388                     }
 389                     $last_id = $this->store->getLastId($sequence);
 390                     $this->action('toggle_archive', $url, $last_id, TRUE);
 391                 }
 392             }
 393
 394             # the second <ol> is for read links
 395             $read = 1;
 396         }
 397         $this->messages->add('s', _('import from instapaper completed'));
 398         Tools::logm('import from instapaper completed');
 399         Tools::redirect();
 400     }
 401
 402     /**
 403      * import from Pocket. poche needs a ./ril_export.html file
 404      * @todo add the return value
 405      * @param string $targetFile the file used for importing
 406      * @return boolean
 407      */
 408     private function importFromPocket($targetFile)
 409     {
 410         # TODO gestion des articles favs
 411         $html = new simple_html_dom();
 412         $html->load_file($targetFile);
 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      * @param string $targetFile the file used for importing
 446      * @return boolean
 447      */
 448     private function importFromReadability($targetFile)
 449     {
 450         # TODO gestion des articles lus / favs
 451         $str_data = file_get_contents($targetFile);
 452         $data = json_decode($str_data,true);
 453         Tools::logm('starting import from Readability');
 454         $count = 0;
 455         foreach ($data as $key => $value) {
 456             $url = NULL;
 457             $favorite = FALSE;
 458             $archive = FALSE;
 459             foreach ($value as $attr => $attr_value) {
 460                 if ($attr == 'article__url') {
 461                     $url = new Url(base64_encode($attr_value));
 462                 }
 463                 $sequence = '';
 464                 if (STORAGE == 'postgres') {
 465                     $sequence = 'entries_id_seq';
 466                 }
 467                 if ($attr_value == 'true') {
 468                     if ($attr == 'favorite') {
 469                         $favorite = TRUE;
 470                     }
 471                     if ($attr == 'archive') {
 472                         $archive = TRUE;
 473                     }
 474                 }
 475             }
 476             # we can add the url
 477             if (!is_null($url) && $url->isCorrect()) {
 478                 $this->action('add', $url, 0, TRUE);
 479                 $count++;
 480                 if ($favorite) {
 481                     $last_id = $this->store->getLastId($sequence);
 482                     $this->action('toggle_fav', $url, $last_id, TRUE);
 483                 }
 484                 if ($archive) {
 485                     $last_id = $this->store->getLastId($sequence);
 486                     $this->action('toggle_archive', $url, $last_id, TRUE);
 487                 }
 488             }
 489         }
 490         $this->messages->add('s', _('import from Readability completed. ' . $count . ' new links.'));
 491         Tools::logm('import from Readability completed');
 492         Tools::redirect();
 493     }
 494
 495     /**
 496      * import datas into your poche
 497      * @param  string $from name of the service to import : pocket, instapaper or readability
 498      * @todo add the return value
 499      * @return boolean
 500      */
 501     public function import($from)
 502     {
 503         $providers = array(
 504             'pocket' => 'importFromPocket',
 505             'readability' => 'importFromReadability',
 506             'instapaper' => 'importFromInstapaper'
 507         );
 508
 509         if (! isset($providers[$from])) {
 510             $this->messages->add('e', _('Unknown import provider.'));
 511             Tools::redirect();
 512         }
 513
 514         $targetDefinition = 'IMPORT_' . strtoupper($from) . '_FILE';
 515         $targetFile = constant($targetDefinition);
 516
 517         if (! defined($targetDefinition)) {
 518             $this->messages->add('e', _('Incomplete inc/poche/define.inc.php file, please define "' . $targetDefinition . '".'));
 519             Tools::redirect();
 520         }
 521
 522         if (! file_exists($targetFile)) {
 523             $this->messages->add('e', _('Could not find required "' . $targetFile . '" import file.'));
 524             Tools::redirect();
 525         }
 526
 527         $this->$providers[$from]($targetFile);
 528     }
 529
 530     /**
 531      * export poche entries in json
 532      * @return json all poche entries
 533      */
 534     public function export()
 535     {
 536         $entries = $this->store->retrieveAll($this->user->getId());
 537         echo $this->tpl->render('export.twig', array(
 538             'export' => Tools::renderJson($entries),
 539         ));
 540         Tools::logm('export view');
 541     }
 542
 543     /**
 544      * Checks online the latest version of poche and cache it
 545      * @param  string $which 'prod' or 'dev'
 546      * @return string        latest $which version
 547      */
 548     private function getPocheVersion($which = 'prod')
 549     {
 550         $cache_file = CACHE . '/' . $which;
 551
 552         # checks if the cached version file exists
 553         if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 554            $version = file_get_contents($cache_file);
 555         } else {
 556            $version = file_get_contents('http://static.inthepoche.com/versions/' . $which);
 557            file_put_contents($cache_file, $version, LOCK_EX);
 558         }
 559         return $version;
 560     }
 561 }