inc/poche/Poche.class.php

   1 <?php
   2 /**
   3  * wallabag, self hostable application allowing you to not miss any content anymore
   4  *
   5  * @category   wallabag
   6  * @author     Nicolas Lœuillet <nicolas@loeuillet.org>
   7  * @copyright  2013
   8  * @license    http://opensource.org/licenses/MIT see COPYING file
   9  */
  10
  11 class Poche
  12 {
  13     /**
  14      * @var User
  15      */
  16     public $user;
  17     /**
  18      * @var Database
  19      */
  20     public $store;
  21     /**
  22      * @var Template
  23      */
  24     public $tpl;
  25     /**
  26      * @var Language
  27      */
  28     public $language;
  29     /**
  30      * @var Routing
  31      */
  32     public $routing;
  33     /**
  34      * @var Messages
  35      */
  36     public $messages;
  37     /**
  38      * @var Paginator
  39      */
  40     public $pagination;
  41
  42     public function __construct()
  43     {
  44         $this->init();
  45     }
  46
  47     private function init()
  48     {
  49         Tools::initPhp();
  50
  51         $pocheUser = Session::getParam('poche_user');
  52
  53         if ($pocheUser && $pocheUser != array()) {
  54             $this->user = $pocheUser;
  55         } else {
  56             // fake user, just for install & login screens
  57             $this->user = new User();
  58             $this->user->setConfig($this->getDefaultConfig());
  59         }
  60
  61         $this->pagination   = new Paginator($this->user->getConfigValue('pager'), 'p');
  62         $this->language     = new Language($this);
  63         $this->tpl          = new Template($this);
  64         $this->store        = new Database();
  65         $this->messages     = new Messages();
  66         $this->routing      = new Routing($this);
  67     }
  68
  69     public function run()
  70     {
  71         $this->routing->run();
  72     }
  73
  74     /**
  75      * Creates a new user
  76      */
  77     public function createNewUser($username, $password, $email = "", $internalRegistration = false)
  78     {
  79         Tools::logm('Trying to create a new user...');
  80         if (!empty($username) && !empty($password)){
  81             $newUsername = filter_var($username, FILTER_SANITIZE_STRING);
  82             $email = filter_var($email, FILTER_SANITIZE_STRING);
  83             if (!$this->store->userExists($newUsername)){
  84                 if ($this->store->install($newUsername, Tools::encodeString($password . $newUsername), $email)) {
  85                     if ($email != "") { // if email is filled
  86                         if (SEND_CONFIRMATION_EMAIL && function_exists('mail')) {
  87
  88                             // if internal registration from config screen
  89                             $body_internal = _('Hi,') . "\r\n\r\n" . sprintf(_('Someone just created a wallabag account for you on %1$s.'), Tools::getPocheUrl()) .
  90                             "\r\n\r\n" . sprintf(_('Your login is %1$s.'), $newUsername) ."\r\n\r\n" .
  91                             _('Note : The password has been chosen by the person who created your account. Get in touch with that person to know your password and change it as soon as possible') . "\r\n\r\n" .
  92                             _('Have fun with it !') . "\r\n\r\n" .
  93                             _('This is an automatically generated message, no one will answer if you respond to it.');
  94
  95                             // if external (public) registration
  96                             $body = sprintf(_('Hi, %1$s'), $newUsername) . "\r\n\r\n" .
  97                             sprintf(_('You\'ve just created a wallabag account on %1$s.'), Tools::getPocheUrl()) .
  98                             "\r\n\r\n" . _("Have fun with it !");
  99
 100                             $body = $internalRegistration ? $body_internal : $body;
 101
 102                             $body = wordwrap($body, 70, "\r\n"); // cut lines with more than 70 caracters (MIME standard)
 103                             if (mail($email, sprintf(_('Your new wallabag account on %1$s'), Tools::getPocheUrl()), $body,
 104                                 'X-Mailer: PHP/' . phpversion() .  "\r\n" .
 105                                 'Content-type: text/plain; charset=UTF-8' . "\r\n" .
 106                                 "From: " . $newUsername . "@" . gethostname() . "\r\n")) {
 107                                 Tools::logm('The user ' . $newUsername . ' has been emailed');
 108                                 $this->messages->add('i', sprintf(_('The new user %1$s has been sent an email at %2$s. You may have to check spam folder.'), $newUsername, $email));
 109                                 Tools::redirect('?');
 110
 111                             } else {
 112                                 Tools::logm('A problem has been encountered while sending an email');
 113                                 $this->messages->add('e', _('A problem has been encountered while sending an email'));
 114                             }
 115                         } else {
 116                             Tools::logm('The user has been created, but the server did not authorize sending emails');
 117                             $this->messages->add('i', _('The server did not authorize sending a confirmation email, but the user was created.'));
 118                         }
 119                 } else {
 120                     Tools::logm('The user has been created, but no email was saved, so no confimation email was sent');
 121                     $this->messages->add('i', _('The user was created, but no email was sent because email was not filled in'));
 122                 }
 123                 Tools::logm('The new user ' . $newUsername . ' has been installed');
 124                 if (\Session::isLogged()) {
 125                     $this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'), $newUsername));
 126                 }
 127                 Tools::redirect();
 128                 }
 129                 else {
 130                     Tools::logm('error during adding new user');
 131                     Tools::redirect();
 132                 }
 133             }
 134             else {
 135                 $this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'), $newUsername));
 136                 Tools::logm('An user with the name ' . $newUsername . ' already exists !');
 137                 Tools::redirect();
 138             }
 139         }
 140         else {
 141             Tools::logm('Password or username were empty');
 142         }
 143     }
 144
 145     /**
 146      * Delete an existing user
 147      */
 148     public function deleteUser($password)
 149     {
 150         if ($this->store->listUsers() > 1) {
 151             if (Tools::encodeString($password . $this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
 152                 $username = $this->user->getUsername();
 153                 $this->store->deleteUserConfig($this->user->getId());
 154                 Tools::logm('The configuration for user '. $username .' has been deleted !');
 155                 $this->store->deleteTagsEntriesAndEntries($this->user->getId());
 156                 Tools::logm('The entries for user '. $username .' has been deleted !');
 157                 $this->store->deleteUser($this->user->getId());
 158                 Tools::logm('User '. $username .' has been completely deleted !');
 159                 Session::logout();
 160                 Tools::logm('logout');
 161                 Tools::redirect();
 162                 $this->messages->add('s', sprintf(_('User %s has been successfully deleted !'), $username));
 163             }
 164             else {
 165                 Tools::logm('Bad password !');
 166                 $this->messages->add('e', _('Error : The password is wrong !'));
 167             }
 168         }
 169         else {
 170             Tools::logm('Only user !');
 171             $this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
 172         }
 173     }
 174
 175     public function getDefaultConfig()
 176     {
 177         return array(
 178             'pager' => PAGINATION,
 179             'language' => LANG,
 180             'theme' => DEFAULT_THEME
 181         );
 182     }
 183
 184     /**
 185      * Call action (mark as fav, archive, delete, etc.)
 186      */
 187     public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
 188     {
 189         switch ($action)
 190         {
 191             case 'add':
 192                 $content = Tools::getPageContent($url);
 193                 $title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
 194                 $body = $content['rss']['channel']['item']['description'];
 195
 196                 // clean content from prevent xss attack
 197                 $purifier = $this->_getPurifier();
 198                 $title = $purifier->purify($title);
 199                 $body = $purifier->purify($body);
 200
 201                 //search for possible duplicate
 202                 $duplicate = NULL;
 203                 $clean_url = $url->getUrl();
 204
 205                 // Clean URL to remove parameters from feedburner and all this stuff. Taken from Shaarli.
 206                 $i=strpos($clean_url,'&utm_source='); if ($i!==false) $clean_url=substr($clean_url,0,$i);
 207                 $i=strpos($clean_url,'?utm_source='); if ($i!==false) $clean_url=substr($clean_url,0,$i);
 208                 $i=strpos($clean_url,'#xtor=RSS-'); if ($i!==false) $clean_url=substr($clean_url,0,$i);
 209
 210                 $duplicate = $this->store->retrieveOneByURL($clean_url, $this->user->getId());
 211
 212                 $last_id = $this->store->add($clean_url, $title, $body, $this->user->getId());
 213                 if ( $last_id ) {
 214                     Tools::logm('add link ' . $clean_url);
 215                     if (DOWNLOAD_PICTURES) {
 216                         $content = Picture::filterPicture($body, $clean_url, $last_id);
 217                         Tools::logm('updating content article');
 218                         $this->store->updateContent($last_id, $content, $this->user->getId());
 219                     }
 220
 221                     if ($duplicate != NULL) {
 222                         // duplicate exists, so, older entry needs to be deleted (as new entry should go to the top of list), BUT favorite mark and tags should be preserved
 223                         Tools::logm('link ' . $clean_url . ' is a duplicate');
 224                         // 1) - preserve tags and favorite, then drop old entry
 225                         $this->store->reassignTags($duplicate['id'], $last_id);
 226                         if ($duplicate['is_fav']) {
 227                           $this->store->favoriteById($last_id, $this->user->getId());
 228                         }
 229                         if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
 230                           Tools::logm('previous link ' . $clean_url .' entry deleted');
 231                         }
 232                     }
 233
 234                     // if there are tags, add them to the new article
 235                     if (isset($_GET['tags'])) {
 236                         $_POST['value'] = $_GET['tags'];
 237                         $_POST['entry_id'] = $last_id;
 238                         $this->action('add_tag', $url);
 239                     }
 240
 241                     $this->messages->add('s', _('the link has been added successfully'));
 242                 }
 243                 else {
 244                     $this->messages->add('e', _('error during insertion : the link wasn\'t added'));
 245                     Tools::logm('error during insertion : the link wasn\'t added ' . $clean_url);
 246                 }
 247
 248                 if ($autoclose == TRUE) {
 249                     Tools::redirect('?view=home&closewin=true');
 250                 } else {
 251                     Tools::redirect('?view=home');
 252                 }
 253                 return $last_id;
 254                 break;
 255             case 'delete':
 256                 if (isset($_GET['search'])) {
 257                     //when we want to apply a delete to a search
 258                     $tags = array($_GET['search']);
 259                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 260                     $entry_ids = array();
 261                     foreach ($allentry_ids as $eachentry) {
 262                         $entry_ids[] = $eachentry[0];
 263                     }
 264                 } else { // delete a single article
 265                     $entry_ids = array($id);
 266                 }
 267                 foreach($entry_ids as $id) {
 268                     $msg = 'delete link #' . $id;
 269                     if ($this->store->deleteById($id, $this->user->getId())) {
 270                         if (DOWNLOAD_PICTURES) {
 271                             Picture::removeDirectory(ABS_PATH . $id);
 272                         }
 273                         $this->messages->add('s', _('the link has been deleted successfully'));
 274                     }
 275                     else {
 276                         $this->messages->add('e', _('the link wasn\'t deleted'));
 277                         $msg = 'error : can\'t delete link #' . $id;
 278                     }
 279                     Tools::logm($msg);
 280                 }
 281                 Tools::redirect('?');
 282                 break;
 283             case 'toggle_fav' :
 284                 $this->store->favoriteById($id, $this->user->getId());
 285                 Tools::logm('mark as favorite link #' . $id);
 286                 if ( Tools::isAjaxRequest() ) {
 287                   echo 1;
 288                   exit;
 289                 }
 290                 else {
 291                   Tools::redirect();
 292                 }
 293                 break;
 294             case 'toggle_archive' :
 295                 if (isset($_GET['tag_id'])) {
 296                     //when we want to archive a whole tag
 297                     $tag_id = $_GET['tag_id'];
 298                     $allentry_ids = $this->store->retrieveEntriesByTag($tag_id, $this->user->getId());
 299                     $entry_ids = array();
 300                     foreach ($allentry_ids as $eachentry) {
 301                         $entry_ids[] = $eachentry[0];
 302                     }
 303                 } else { //archive a single article
 304                     $entry_ids = array($id);
 305                 }
 306                 foreach($entry_ids as $id) {
 307                     $this->store->archiveById($id, $this->user->getId());
 308                     Tools::logm('archive link #' . $id);
 309                 }
 310                 if ( Tools::isAjaxRequest() ) {
 311                   echo 1;
 312                   exit;
 313                 } else {
 314                   Tools::redirect();
 315                 }
 316                 break;
 317             case 'archive_and_next' :
 318                 $nextid = $this->store->getPreviousArticle($id, $this->user->getId());
 319                 $this->store->archiveById($id, $this->user->getId());
 320                 Tools::logm('archive link #' . $id);
 321                 Tools::redirect('?view=view&id=' . $nextid);
 322                 break;
 323             case 'archive_all' :
 324                 $this->store->archiveAll($this->user->getId());
 325                 Tools::logm('archive all links');
 326                 Tools::redirect();
 327                 break;
 328             case 'add_tag' :
 329                 if (isset($_GET['search'])) {
 330                     //when we want to apply a tag to a search
 331                     $tags = array($_GET['search']);
 332                     $allentry_ids = $this->store->search($tags[0], $this->user->getId());
 333                     $entry_ids = array();
 334                     foreach ($allentry_ids as $eachentry) {
 335                         $entry_ids[] = $eachentry[0];
 336                     }
 337                 } else { //add a tag to a single article
 338                     $tags = explode(',', $_POST['value']);
 339                     $entry_ids = array($_POST['entry_id']);
 340                 }
 341                 foreach($entry_ids as $entry_id) {
 342                     $entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
 343                     if (!$entry) {
 344                         $this->messages->add('e', _('Article not found!'));
 345                         Tools::logm('error : article not found');
 346                         Tools::redirect();
 347                     }
 348                     //get all already set tags to preven duplicates
 349                     $already_set_tags = array();
 350                     $entry_tags = $this->store->retrieveTagsByEntry($entry_id);
 351                     foreach ($entry_tags as $tag) {
 352                       $already_set_tags[] = $tag['value'];
 353                     }
 354                     foreach($tags as $key => $tag_value) {
 355                         $value = trim($tag_value);
 356                         if ($value && !in_array($value, $already_set_tags)) {
 357                           $tag = $this->store->retrieveTagByValue($value);
 358                           if (is_null($tag)) {
 359                               # we create the tag
 360                               $tag = $this->store->createTag($value);
 361                               $sequence = '';
 362                               if (STORAGE == 'postgres') {
 363                                   $sequence = 'tags_id_seq';
 364                               }
 365                               $tag_id = $this->store->getLastId($sequence);
 366                           }
 367                           else {
 368                               $tag_id = $tag['id'];
 369                           }
 370
 371                           # we assign the tag to the article
 372                           $this->store->setTagToEntry($tag_id, $entry_id);
 373                         }
 374                     }
 375                 }
 376                 $this->messages->add('s', _('The tag has been applied successfully'));
 377                 Tools::logm('The tag has been applied successfully');
 378                 Tools::redirect();
 379                 break;
 380             case 'remove_tag' :
 381                 $tag_id = $_GET['tag_id'];
 382                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 383                 if (!$entry) {
 384                     $this->messages->add('e', _('Article not found!'));
 385                     Tools::logm('error : article not found');
 386                     Tools::redirect();
 387                 }
 388                 $this->store->removeTagForEntry($id, $tag_id);
 389                 Tools::logm('tag entry deleted');
 390                 if ($this->store->cleanUnusedTag($tag_id)) {
 391                     Tools::logm('tag deleted');
 392                 }
 393                 $this->messages->add('s', _('The tag has been successfully deleted'));
 394                 Tools::redirect();
 395                 break;
 396
 397             case 'reload_article' :
 398                 Tools::logm('reload article');
 399                 $id = $_GET['id'];
 400                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 401                 Tools::logm('reload url ' . $entry['url']);
 402                 $url = new Url(base64_encode($entry['url']));
 403                 $this->action('add', $url);
 404                 break;
 405
 406             /* For some unknown reason I can't get displayView() to work here (it redirects to home view afterwards). So here's a dirty fix which redirects directly to URL */
 407             case 'random':
 408                 Tools::logm('get a random article');
 409                 $view = $_GET['view'];
 410                 if ($this->store->getRandomId($this->user->getId(),$view)) {
 411                     $id_array = $this->store->getRandomId($this->user->getId(),$view);
 412                     $id = $id_array[0];
 413                     Tools::redirect('?view=view&id=' . $id[0]);
 414                     Tools::logm('got the article with id ' . $id[0]);
 415                 }
 416                 break;
 417             default:
 418                 break;
 419         }
 420     }
 421
 422     function displayView($view, $id = 0)
 423     {
 424         $tpl_vars = array();
 425
 426         switch ($view)
 427         {
 428             case 'about':
 429                 break;
 430             case 'config':
 431                 $dev_infos = $this->_getPocheVersion('dev');
 432                 $dev = trim($dev_infos[0]);
 433                 $check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
 434                 $prod_infos = $this->_getPocheVersion('prod');
 435                 $prod = trim($prod_infos[0]);
 436                 $check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
 437                 $compare_dev = version_compare(POCHE, $dev);
 438                 $compare_prod = version_compare(POCHE, $prod);
 439                 $themes = $this->tpl->getInstalledThemes();
 440                 $languages = $this->language->getInstalledLanguages();
 441                 $token = $this->user->getConfigValue('token');
 442                 $http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
 443                 $only_user = ($this->store->listUsers() > 1) ? false : true;
 444                 $tpl_vars = array(
 445                     'themes' => $themes,
 446                     'languages' => $languages,
 447                     'dev' => $dev,
 448                     'prod' => $prod,
 449                     'check_time_dev' => $check_time_dev,
 450                     'check_time_prod' => $check_time_prod,
 451                     'compare_dev' => $compare_dev,
 452                     'compare_prod' => $compare_prod,
 453                     'token' => $token,
 454                     'user_id' => $this->user->getId(),
 455                     'http_auth' => $http_auth,
 456                     'only_user' => $only_user
 457                 );
 458                 Tools::logm('config view');
 459                 break;
 460             case 'edit-tags':
 461                 # tags
 462                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 463                 if (!$entry) {
 464                     $this->messages->add('e', _('Article not found!'));
 465                     Tools::logm('error : article not found');
 466                     Tools::redirect();
 467                 }
 468                 $tags = $this->store->retrieveTagsByEntry($id);
 469                 $all_tags = $this->store->retrieveAllTags($this->user->getId());
 470                 $maximus = 0;
 471                 foreach ($all_tags as $eachtag) { // search for the most times a tag is present
 472                     if ($eachtag["entriescount"] > $maximus) $maximus = $eachtag["entriescount"];
 473                 }
 474                 foreach ($all_tags as $key => $eachtag) { // get the percentage of presence of each tag
 475                     $percent = floor(($eachtag["entriescount"] / $maximus) * 100);
 476
 477                     if ($percent < 20): // assign a css class, depending on the number of entries count
 478                         $cssclass = 'smallesttag';
 479                     elseif ($percent >= 20 and $percent < 40):
 480                         $cssclass = 'smalltag';
 481                     elseif ($percent >= 40 and $percent < 60):
 482                         $cssclass = 'mediumtag';
 483                     elseif ($percent >= 60 and $percent < 80):
 484                         $cssclass = 'largetag';
 485                     else:
 486                         $cssclass = 'largesttag';
 487                     endif;
 488                     $all_tags[$key]['cssclass'] = $cssclass;
 489                 }
 490                 $tpl_vars = array(
 491                     'entry_id' => $id,
 492                     'tags' => $tags,
 493                     'alltags' => $all_tags,
 494                     'entry' => $entry,
 495                 );
 496                 break;
 497             case 'tags':
 498                 $token = $this->user->getConfigValue('token');
 499                 //if term is set - search tags for this term
 500                 $term = Tools::checkVar('term');
 501                 $tags = $this->store->retrieveAllTags($this->user->getId(), $term);
 502                 if (Tools::isAjaxRequest()) {
 503                   $result = array();
 504                   foreach ($tags as $tag) {
 505                     $result[] = $tag['value'];
 506                   }
 507                   echo json_encode($result);
 508                   exit;
 509                 }
 510                 $tpl_vars = array(
 511                     'token' => $token,
 512                     'user_id' => $this->user->getId(),
 513                     'tags' => $tags,
 514                 );
 515                 break;
 516             case 'search':
 517                 if (isset($_GET['search'])) {
 518                    $search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
 519                    $tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
 520                    $count = count($tpl_vars['entries']);
 521                    $this->pagination->set_total($count);
 522                    $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 523                             $this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
 524                    $tpl_vars['page_links'] = $page_links;
 525                    $tpl_vars['nb_results'] = $count;
 526                    $tpl_vars['searchterm'] = $search;
 527                 }
 528                 break;
 529             case 'view':
 530                 $entry = $this->store->retrieveOneById($id, $this->user->getId());
 531                 if ($entry != NULL) {
 532                     Tools::logm('view link #' . $id);
 533                     $content = $entry['content'];
 534                     if (function_exists('tidy_parse_string')) {
 535                         $tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
 536                         $tidy->cleanRepair();
 537                         $content = $tidy->value;
 538                     }
 539
 540                     # flattr checking
 541                     $flattr = NULL;
 542                     if (FLATTR) {
 543                         $flattr = new FlattrItem();
 544                         $flattr->checkItem($entry['url'], $entry['id']);
 545                     }
 546
 547                     # previous and next
 548                     $previous = FALSE;
 549                     $previous_id = $this->store->getPreviousArticle($id, $this->user->getId());
 550                     $next = FALSE;
 551                     $next_id = $this->store->getNextArticle($id, $this->user->getId());
 552
 553                     if ($this->store->retrieveOneById($previous_id, $this->user->getId())) {
 554                         $previous = TRUE;
 555                     }
 556                     if ($this->store->retrieveOneById($next_id, $this->user->getId())) {
 557                         $next = TRUE;
 558                     }
 559                     $navigate = array('previous' => $previous, 'previousid' => $previous_id, 'next' => $next, 'nextid' => $next_id);
 560
 561                     # tags
 562                     $tags = $this->store->retrieveTagsByEntry($entry['id']);
 563
 564                     $tpl_vars = array(
 565                         'entry' => $entry,
 566                         'content' => $content,
 567                         'flattr' => $flattr,
 568                         'tags' => $tags,
 569                         'navigate' => $navigate
 570                     );
 571                 }
 572                 else {
 573                     Tools::logm('error in view call : entry is null');
 574                 }
 575                 break;
 576             default: # home, favorites, archive and tag views
 577                 $tpl_vars = array(
 578                     'entries' => '',
 579                     'page_links' => '',
 580                     'nb_results' => '',
 581                     'listmode' => (isset($_COOKIE['listmode']) ? true : false),
 582                     'view' => $view,
 583                 );
 584
 585                 //if id is given - we retrieve entries by tag: id is tag id
 586                 if ($id) {
 587                   $tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
 588                   $tpl_vars['id'] = intval($id);
 589                 }
 590
 591                 $count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
 592
 593                 if ($count > 0) {
 594                     $this->pagination->set_total($count);
 595                     $page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
 596                         $this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
 597                     $tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
 598                     $tpl_vars['page_links'] = $page_links;
 599                     $tpl_vars['nb_results'] = $count;
 600                 }
 601                 Tools::logm('display ' . $view . ' view');
 602                 break;
 603         }
 604
 605         return $tpl_vars;
 606     }
 607
 608     /**
 609      * update the password of the current user.
 610      * if MODE_DEMO is TRUE, the password can't be updated.
 611      * @todo add the return value
 612      * @todo set the new password in function header like this updatePassword($newPassword)
 613      * @return boolean
 614      */
 615     public function updatePassword($password, $confirmPassword)
 616     {
 617         if (MODE_DEMO) {
 618             $this->messages->add('i', _('in demo mode, you can\'t update your password'));
 619             Tools::logm('in demo mode, you can\'t do this');
 620             Tools::redirect('?view=config');
 621         }
 622         else {
 623             if (isset($password) && isset($confirmPassword)) {
 624                 if ($password == $confirmPassword && !empty($password)) {
 625                     $this->messages->add('s', _('your password has been updated'));
 626                     $this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
 627                     Session::logout();
 628                     Tools::logm('password updated');
 629                     Tools::redirect();
 630                 }
 631                 else {
 632                     $this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
 633                     Tools::redirect('?view=config');
 634                 }
 635             }
 636         }
 637     }
 638
 639     /**
 640      * Get credentials from differents sources
 641      * It redirects the user to the $referer link
 642      *
 643      * @return array
 644      */
 645     private function credentials()
 646     {
 647         if (isset($_SERVER['PHP_AUTH_USER'])) {
 648             return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
 649         }
 650         if (!empty($_POST['login']) && !empty($_POST['password'])) {
 651             return array($_POST['login'], $_POST['password'], false);
 652         }
 653         if (isset($_SERVER['REMOTE_USER'])) {
 654             return array($_SERVER['REMOTE_USER'], 'http_auth', true);
 655         }
 656
 657         return array(false, false, false);
 658     }
 659
 660     /**
 661      * checks if login & password are correct and save the user in session.
 662      * it redirects the user to the $referer link
 663      * @param  string $referer the url to redirect after login
 664      * @todo add the return value
 665      * @return boolean
 666      */
 667     public function login($referer)
 668     {
 669         list($login,$password,$isauthenticated)=$this->credentials();
 670         if($login === false || $password === false) {
 671             $this->messages->add('e', _('login failed: you have to fill all fields'));
 672             Tools::logm('login failed');
 673             Tools::redirect();
 674         }
 675         if (!empty($login) && !empty($password)) {
 676             $user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
 677             if ($user != array()) {
 678                 # Save login into Session
 679                 $longlastingsession = isset($_POST['longlastingsession']);
 680                 $passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
 681                 Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
 682
 683                 # reload l10n
 684                 $language = $user['config']['language'];
 685                 @putenv('LC_ALL=' . $language);
 686                 setlocale(LC_ALL, $language);
 687                 bindtextdomain($language, LOCALE);
 688                 textdomain($language);
 689
 690                 $this->messages->add('s', _('welcome to your wallabag'));
 691                 Tools::logm('login successful');
 692                 Tools::redirect($referer);
 693             }
 694             $this->messages->add('e', _('login failed: bad login or password'));
 695             // log login failure in web server log to allow fail2ban usage
 696             error_log('user '.$login.' authentication failure');
 697             Tools::logm('login failed');
 698             Tools::redirect();
 699         }
 700     }
 701
 702     /**
 703      * log out the poche user. It cleans the session.
 704      * @todo add the return value
 705      * @return boolean
 706      */
 707     public function logout()
 708     {
 709         $this->user = array();
 710         Session::logout();
 711         Tools::logm('logout');
 712         Tools::redirect();
 713     }
 714
 715     /**
 716      * import datas into your wallabag
 717      * @return boolean
 718      */
 719
 720     public function import() {
 721
 722       if ( isset($_FILES['file']) && $_FILES['file']['tmp_name'] ) {
 723         Tools::logm('Import stated: parsing file');
 724
 725         // assume, that file is in json format
 726         $str_data = file_get_contents($_FILES['file']['tmp_name']);
 727         $data = json_decode($str_data, true);
 728
 729         if ( $data === null ) {
 730           //not json - assume html
 731           $html = new simple_html_dom();
 732           $html->load_file($_FILES['file']['tmp_name']);
 733           $data = array();
 734           $read = 0;
 735
 736           if (Tools:: get_doctype($html)) {
 737             // Firefox-bookmarks HTML
 738             foreach (array('DL','ul') as $list) {
 739                 foreach ($html->find($list) as $ul) {
 740                   foreach ($ul->find('DT') as $li) {
 741                     $tmpEntry = array();
 742                       $a = $li->find('A');
 743                       $tmpEntry['url'] = $a[0]->href;
 744                       $tmpEntry['tags'] = $a[0]->tags;
 745                       $tmpEntry['is_read'] = $read;
 746                       if ($tmpEntry['url']) {
 747                         $data[] = $tmpEntry;
 748                       }
 749                   }
 750                   # the second <ol/ul> is for read links
 751                   $read = ((sizeof($data) && $read)?0:1);
 752                 }
 753             }
 754           } else {
 755             // regular HTML
 756             foreach (array('ol','ul') as $list) {
 757                 foreach ($html->find($list) as $ul) {
 758                   foreach ($ul->find('li') as $li) {
 759                     $tmpEntry = array();
 760                       $a = $li->find('a');
 761                       $tmpEntry['url'] = $a[0]->href;
 762                       $tmpEntry['tags'] = $a[0]->tags;
 763                       $tmpEntry['is_read'] = $read;
 764                       if ($tmpEntry['url']) {
 765                         $data[] = $tmpEntry;
 766                       }
 767                   }
 768                   # the second <ol/ul> is for read links
 769                   $read = ((sizeof($data) && $read)?0:1);
 770                 }
 771               }
 772                 }
 773         }
 774
 775             // for readability structure
 776
 777             foreach($data as $record) {
 778                 if (is_array($record)) {
 779                     $data[] = $record;
 780                     foreach($record as $record2) {
 781                         if (is_array($record2)) {
 782                             $data[] = $record2;
 783                         }
 784                     }
 785                 }
 786             }
 787
 788             $urlsInserted = array(); //urls of articles inserted
 789             foreach($data as $record) {
 790                 $url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
 791                 if ($url and !in_array($url, $urlsInserted)) {
 792                     $title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
 793                     $body = (isset($record['content']) ? $record['content'] : '');
 794                     $isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
 795                     $isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
 796
 797                     // insert new record
 798
 799                     $id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
 800                     if ($id) {
 801                         $urlsInserted[] = $url; //add
 802                         if (isset($record['tags']) && trim($record['tags'])) {
 803
 804                             $tags = explode(',', $record['tags']);
 805                                                         foreach($tags as $tag) {
 806                                                                 $entry_id = $id;
 807                                                                 $tag_id = $this->store->retrieveTagByValue($tag);
 808                                                                 if ($tag_id) {
 809                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 810                                                                 } else {
 811                                                                         $this->store->createTag($tag);
 812                                                                         $tag_id = $this->store->retrieveTagByValue($tag);
 813                                                                         $this->store->setTagToEntry($tag_id['id'], $entry_id);
 814                                                                 }
 815                                                         }
 816
 817                         }
 818                     }
 819                 }
 820             }
 821
 822             $i = sizeof($urlsInserted);
 823             if ($i > 0) {
 824                 $this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
 825             }
 826
 827         Tools::logm('Import of articles finished: '.$i.' articles added (w/o content if not provided).');
 828       }
 829       else {
 830         $this->messages->add('e', _('Did you forget to select a file?'));
 831       }
 832         // file parsing finished here
 833         // now download article contents if any
 834         // check if we need to download any content
 835
 836         $recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
 837
 838         if ($recordsDownloadRequired == 0) {
 839
 840             // nothing to download
 841
 842             $this->messages->add('s', _('Import finished.'));
 843             Tools::logm('Import finished completely');
 844             Tools::redirect();
 845         }
 846         else {
 847
 848             // if just inserted - don't download anything, download will start in next reload
 849
 850             if (!isset($_FILES['file'])) {
 851
 852                 // download next batch
 853
 854                 Tools::logm('Fetching next batch of articles...');
 855                 $items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
 856                 $purifier = $this->_getPurifier();
 857                 foreach($items as $item) {
 858                     $url = new Url(base64_encode($item['url']));
 859                     if( $url->isCorrect() )
 860                     {
 861                         Tools::logm('Fetching article ' . $item['id']);
 862                         $content = Tools::getPageContent($url);
 863                         $title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
 864                         $body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
 865
 866                         // clean content to prevent xss attack
 867
 868                         $title = $purifier->purify($title);
 869                         $body = $purifier->purify($body);
 870                         $this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
 871                         Tools::logm('Article ' . $item['id'] . ' updated.');
 872                     } else
 873                     {
 874                         Tools::logm('Unvalid URL (' . $item['url'] .')  to fetch for article ' . $item['id']);
 875                     }
 876                 }
 877             }
 878         }
 879
 880         return array(
 881             'includeImport' => true,
 882             'import' => array(
 883                 'recordsDownloadRequired' => $recordsDownloadRequired,
 884                 'recordsUnderDownload' => IMPORT_LIMIT,
 885                 'delay' => IMPORT_DELAY * 1000
 886             )
 887         );
 888     }
 889
 890     /**
 891      * export poche entries in json
 892      * @return json all poche entries
 893      */
 894     public function export()
 895     {
 896       $filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
 897       header('Content-Disposition: attachment; filename='.$filename);
 898
 899       $entries = $this->store->retrieveAll($this->user->getId());
 900       echo $this->tpl->render('export.twig', array(
 901           'export' => Tools::renderJson($entries),
 902       ));
 903       Tools::logm('export view');
 904     }
 905
 906     /**
 907      * Checks online the latest version of poche and cache it
 908      * @param  string $which 'prod' or 'dev'
 909      * @return string        latest $which version
 910      */
 911     private function _getPocheVersion($which = 'prod') {
 912       $cache_file = CACHE . '/' . $which;
 913       $check_time = time();
 914
 915       # checks if the cached version file exists
 916       if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
 917          $version = file_get_contents($cache_file);
 918          $check_time = filemtime($cache_file);
 919       } else {
 920          $version = file_get_contents('http://static.wallabag.org/versions/' . $which);
 921          file_put_contents($cache_file, $version, LOCK_EX);
 922       }
 923       return array($version, $check_time);
 924     }
 925
 926     /**
 927      * Update token for current user
 928      */
 929     public function updateToken()
 930     {
 931         $token = Tools::generateToken();
 932         $this->store->updateUserConfig($this->user->getId(), 'token', $token);
 933         $currentConfig = $_SESSION['poche_user']->config;
 934         $currentConfig['token'] = $token;
 935         $_SESSION['poche_user']->setConfig($currentConfig);
 936         Tools::redirect();
 937     }
 938
 939     /**
 940      * Generate RSS feeds for current user
 941      *
 942      * @param $token
 943      * @param $user_id
 944      * @param $tag_id if $type is 'tag', the id of the tag to generate feed for
 945      * @param string $type the type of feed to generate
 946      * @param int $limit the maximum number of items (0 means all)
 947      */
 948     public function generateFeeds($token, $user_id, $tag_id, $type = 'home', $limit = 0)
 949     {
 950         $allowed_types = array('home', 'fav', 'archive', 'tag');
 951         $config = $this->store->getConfigUser($user_id);
 952
 953         if ($config == null) {
 954             die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
 955         }
 956
 957         if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
 958             die(_('Uh, there is a problem while generating feed. Wrong token used?'));
 959         }
 960
 961         $feed = new FeedWriter(RSS2);
 962         $feed->setTitle('wallabag — ' . $type . ' feed');
 963         $feed->setLink(Tools::getPocheUrl());
 964         $feed->setChannelElement('pubDate', date(DATE_RSS , time()));
 965         $feed->setChannelElement('generator', 'wallabag');
 966         $feed->setDescription('wallabag ' . $type . ' elements');
 967
 968         if ($type == 'tag') {
 969             $entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
 970         }
 971         else {
 972             $entries = $this->store->getEntriesByView($type, $user_id);
 973         }
 974
 975         // if $limit is set to zero, use all entries
 976         if (0 == $limit) {
 977             $limit = count($entries);
 978         }
 979         if (count($entries) > 0) {
 980             for ($i = 0; $i < min(count($entries), $limit); $i++) {
 981                 $entry = $entries[$i];
 982                 $newItem = $feed->createNewItem();
 983                 $newItem->setTitle($entry['title']);
 984                 $newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
 985                 $newItem->setLink($entry['url']);
 986                 $newItem->setDate(time());
 987                 $newItem->setDescription($entry['content']);
 988                 $feed->addItem($newItem);
 989             }
 990         }
 991
 992         $feed->genarateFeed();
 993         exit;
 994     }
 995
 996
 997
 998     /**
 999      * Returns new purifier object with actual config
1000      */
1001     private function _getPurifier()
1002     {
1003         $config = HTMLPurifier_Config::createDefault();
1004         $config->set('Cache.SerializerPath', CACHE);
1005         $config->set('HTML.SafeIframe', true);
1006
1007         //allow YouTube, Vimeo and dailymotion videos
1008         $config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
1009
1010         return new HTMLPurifier($config);
1011     }
1012
1013
1014 }