wallabag/inc/poche/Poche.class.php

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<?php
/**
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* wallabag, self hostable application allowing you to not miss any content anymore
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*
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* @category wallabag
* @author Nicolas Lœuillet <nicolas@loeuillet.org>
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* @copyright 2013
* @license http://opensource.org/licenses/MIT see COPYING file
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*/
class Poche
{
/**
* @var User
*/
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public $user;
/**
* @var Database
*/
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public $store;
/**
* @var Template
*/
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public $tpl;
/**
* @var Language
*/
public $language;
/**
* @var Routing
*/
public $routing;
/**
* @var Messages
*/
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public $messages;
/**
* @var Paginator
*/
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public $pagination;
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public function __construct()
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{
$this->init();
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}
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private function init()
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{
Tools::initPhp();
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$pocheUser = Session::getParam('poche_user');
if ($pocheUser && $pocheUser != array()) {
$this->user = $pocheUser;
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} else {
// fake user, just for install & login screens
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$this->user = new User();
$this->user->setConfig($this->getDefaultConfig());
}
$this->pagination = new Paginator($this->user->getConfigValue('pager'), 'p');
$this->language = new Language($this);
$this->tpl = new Template($this);
$this->store = new Database();
$this->messages = new Messages();
$this->routing = new Routing($this);
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}
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public function run()
{
$this->routing->run();
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}
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/**
* Creates a new user
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*/
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public function createNewUser($username, $password)
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{
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if (!empty($username) && !empty($password)){
$newUsername = filter_var($username, FILTER_SANITIZE_STRING);
if (!$this->store->userExists($newUsername)){
if ($this->store->install($newUsername, Tools::encodeString($password . $newUsername))) {
Tools::logm('The new user ' . $newUsername . ' has been installed');
$this->messages->add('s', sprintf(_('The new user %s has been installed. Do you want to <a href="?logout">logout ?</a>'), $newUsername));
Tools::redirect();
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}
else {
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Tools::logm('error during adding new user');
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Tools::redirect();
}
}
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else {
$this->messages->add('e', sprintf(_('Error : An user with the name %s already exists !'), $newUsername));
Tools::logm('An user with the name ' . $newUsername . ' already exists !');
Tools::redirect();
}
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}
}
/**
* Delete an existing user
*/
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public function deleteUser($password)
{
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if ($this->store->listUsers() > 1) {
if (Tools::encodeString($password . $this->user->getUsername()) == $this->store->getUserPassword($this->user->getId())) {
$username = $this->user->getUsername();
$this->store->deleteUserConfig($this->user->getId());
Tools::logm('The configuration for user '. $username .' has been deleted !');
$this->store->deleteTagsEntriesAndEntries($this->user->getId());
Tools::logm('The entries for user '. $username .' has been deleted !');
$this->store->deleteUser($this->user->getId());
Tools::logm('User '. $username .' has been completely deleted !');
Session::logout();
Tools::logm('logout');
Tools::redirect();
$this->messages->add('s', sprintf(_('User %s has been successfully deleted !'), $username));
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}
else {
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Tools::logm('Bad password !');
$this->messages->add('e', _('Error : The password is wrong !'));
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}
}
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else {
Tools::logm('Only user !');
$this->messages->add('e', _('Error : You are the only user, you cannot delete your account !'));
}
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}
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public function getDefaultConfig()
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{
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return array(
'pager' => PAGINATION,
'language' => LANG,
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'theme' => DEFAULT_THEME
);
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}
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/**
* Call action (mark as fav, archive, delete, etc.)
*/
public function action($action, Url $url, $id = 0, $import = FALSE, $autoclose = FALSE, $tags = null)
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{
switch ($action)
{
case 'add':
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$content = Tools::getPageContent($url);
$title = ($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled');
$body = $content['rss']['channel']['item']['description'];
// clean content from prevent xss attack
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$purifier = $this->_getPurifier();
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$title = $purifier->purify($title);
$body = $purifier->purify($body);
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//search for possible duplicate
$duplicate = NULL;
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$duplicate = $this->store->retrieveOneByURL($url->getUrl(), $this->user->getId());
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$last_id = $this->store->add($url->getUrl(), $title, $body, $this->user->getId());
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if ( $last_id ) {
Tools::logm('add link ' . $url->getUrl());
if (DOWNLOAD_PICTURES) {
$content = Picture::filterPicture($body, $url->getUrl(), $last_id);
Tools::logm('updating content article');
$this->store->updateContent($last_id, $content, $this->user->getId());
}
if ($duplicate != NULL) {
// 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
Tools::logm('link ' . $url->getUrl() . ' is a duplicate');
// 1) - preserve tags and favorite, then drop old entry
$this->store->reassignTags($duplicate['id'], $last_id);
if ($duplicate['is_fav']) {
$this->store->favoriteById($last_id, $this->user->getId());
}
if ($this->store->deleteById($duplicate['id'], $this->user->getId())) {
Tools::logm('previous link ' . $url->getUrl() .' entry deleted');
}
}
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$this->messages->add('s', _('the link has been added successfully'));
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}
else {
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$this->messages->add('e', _('error during insertion : the link wasn\'t added'));
Tools::logm('error during insertion : the link wasn\'t added ' . $url->getUrl());
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}
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if ($autoclose == TRUE) {
Tools::redirect('?view=home');
} else {
Tools::redirect('?view=home&closewin=true');
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}
break;
case 'delete':
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$msg = 'delete link #' . $id;
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if ($this->store->deleteById($id, $this->user->getId())) {
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if (DOWNLOAD_PICTURES) {
Picture::removeDirectory(ABS_PATH . $id);
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}
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$this->messages->add('s', _('the link has been deleted successfully'));
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}
else {
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$this->messages->add('e', _('the link wasn\'t deleted'));
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$msg = 'error : can\'t delete link #' . $id;
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}
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Tools::logm($msg);
Tools::redirect('?');
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break;
case 'toggle_fav' :
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$this->store->favoriteById($id, $this->user->getId());
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Tools::logm('mark as favorite link #' . $id);
if ( Tools::isAjaxRequest() ) {
echo 1;
exit;
}
else {
Tools::redirect();
}
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break;
case 'toggle_archive' :
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$this->store->archiveById($id, $this->user->getId());
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Tools::logm('archive link #' . $id);
if ( Tools::isAjaxRequest() ) {
echo 1;
exit;
}
else {
Tools::redirect();
}
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break;
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case 'archive_all' :
$this->store->archiveAll($this->user->getId());
Tools::logm('archive all links');
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Tools::redirect();
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break;
case 'add_tag' :
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if (isset($_GET['search'])) {
//when we want to apply a tag to a search
$tags = array($_GET['search']);
$allentry_ids = $this->store->search($tags[0], $this->user->getId());
$entry_ids = array();
foreach ($allentry_ids as $eachentry) {
$entry_ids[] = $eachentry[0];
}
} else { //add a tag to a single article
$tags = explode(',', $_POST['value']);
$entry_ids = array($_POST['entry_id']);
}
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foreach($entry_ids as $entry_id) {
$entry = $this->store->retrieveOneById($entry_id, $this->user->getId());
if (!$entry) {
$this->messages->add('e', _('Article not found!'));
Tools::logm('error : article not found');
Tools::redirect();
}
//get all already set tags to preven duplicates
$already_set_tags = array();
$entry_tags = $this->store->retrieveTagsByEntry($entry_id);
foreach ($entry_tags as $tag) {
$already_set_tags[] = $tag['value'];
}
foreach($tags as $key => $tag_value) {
$value = trim($tag_value);
if ($value && !in_array($value, $already_set_tags)) {
$tag = $this->store->retrieveTagByValue($value);
if (is_null($tag)) {
# we create the tag
$tag = $this->store->createTag($value);
$sequence = '';
if (STORAGE == 'postgres') {
$sequence = 'tags_id_seq';
}
$tag_id = $this->store->getLastId($sequence);
}
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else {
$tag_id = $tag['id'];
}
# we assign the tag to the article
$this->store->setTagToEntry($tag_id, $entry_id);
}
}
}
$this->messages->add('s', _('The tag has been applied successfully'));
Tools::logm('The tag has been applied successfully');
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Tools::redirect();
break;
case 'remove_tag' :
$tag_id = $_GET['tag_id'];
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$entry = $this->store->retrieveOneById($id, $this->user->getId());
if (!$entry) {
$this->messages->add('e', _('Article not found!'));
Tools::logm('error : article not found');
Tools::redirect();
}
$this->store->removeTagForEntry($id, $tag_id);
Tools::logm('tag entry deleted');
if ($this->store->cleanUnusedTag($tag_id)) {
Tools::logm('tag deleted');
}
$this->messages->add('s', _('The tag has been successfully deleted'));
Tools::redirect();
break;
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default:
break;
}
}
function displayView($view, $id = 0)
{
$tpl_vars = array();
switch ($view)
{
case 'config':
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$dev_infos = $this->_getPocheVersion('dev');
$dev = trim($dev_infos[0]);
$check_time_dev = date('d-M-Y H:i', $dev_infos[1]);
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$prod_infos = $this->_getPocheVersion('prod');
$prod = trim($prod_infos[0]);
$check_time_prod = date('d-M-Y H:i', $prod_infos[1]);
$compare_dev = version_compare(POCHE, $dev);
$compare_prod = version_compare(POCHE, $prod);
$themes = $this->tpl->getInstalledThemes();
$languages = $this->language->getInstalledLanguages();
$token = $this->user->getConfigValue('token');
$http_auth = (isset($_SERVER['PHP_AUTH_USER']) || isset($_SERVER['REMOTE_USER'])) ? true : false;
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$only_user = ($this->store->listUsers() > 1) ? false : true;
$tpl_vars = array(
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'themes' => $themes,
'languages' => $languages,
'dev' => $dev,
'prod' => $prod,
'check_time_dev' => $check_time_dev,
'check_time_prod' => $check_time_prod,
'compare_dev' => $compare_dev,
'compare_prod' => $compare_prod,
'token' => $token,
'user_id' => $this->user->getId(),
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'http_auth' => $http_auth,
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'only_user' => $only_user
);
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Tools::logm('config view');
break;
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case 'edit-tags':
# tags
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$entry = $this->store->retrieveOneById($id, $this->user->getId());
if (!$entry) {
$this->messages->add('e', _('Article not found!'));
Tools::logm('error : article not found');
Tools::redirect();
}
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$tags = $this->store->retrieveTagsByEntry($id);
$tpl_vars = array(
'entry_id' => $id,
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'tags' => $tags,
'entry' => $entry,
);
break;
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case 'tags':
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$token = $this->user->getConfigValue('token');
//if term is set - search tags for this term
$term = Tools::checkVar('term');
$tags = $this->store->retrieveAllTags($this->user->getId(), $term);
if (Tools::isAjaxRequest()) {
$result = array();
foreach ($tags as $tag) {
$result[] = $tag['value'];
}
echo json_encode($result);
exit;
}
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$tpl_vars = array(
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'token' => $token,
'user_id' => $this->user->getId(),
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'tags' => $tags,
);
break;
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case 'search':
if (isset($_GET['search'])) {
$search = filter_var($_GET['search'], FILTER_SANITIZE_STRING);
$tpl_vars['entries'] = $this->store->search($search, $this->user->getId());
$count = count($tpl_vars['entries']);
$this->pagination->set_total($count);
$page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
$this->pagination->page_links('?view=' . $view . '?search=' . $search . '&sort=' . $_SESSION['sort'] . '&' ));
$tpl_vars['page_links'] = $page_links;
$tpl_vars['nb_results'] = $count;
$tpl_vars['search_term'] = $search;
}
break;
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case 'view':
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$entry = $this->store->retrieveOneById($id, $this->user->getId());
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if ($entry != NULL) {
Tools::logm('view link #' . $id);
$content = $entry['content'];
if (function_exists('tidy_parse_string')) {
$tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
$tidy->cleanRepair();
$content = $tidy->value;
}
# flattr checking
$flattr = new FlattrItem();
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$flattr->checkItem($entry['url'], $entry['id']);
# tags
$tags = $this->store->retrieveTagsByEntry($entry['id']);
$tpl_vars = array(
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'entry' => $entry,
'content' => $content,
'flattr' => $flattr,
'tags' => $tags
);
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}
else {
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Tools::logm('error in view call : entry is null');
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}
break;
default: # home, favorites, archive and tag views
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$tpl_vars = array(
'entries' => '',
'page_links' => '',
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'nb_results' => '',
'listmode' => (isset($_COOKIE['listmode']) ? true : false),
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);
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//if id is given - we retrieve entries by tag: id is tag id
if ($id) {
$tpl_vars['tag'] = $this->store->retrieveTag($id, $this->user->getId());
$tpl_vars['id'] = intval($id);
}
$count = $this->store->getEntriesByViewCount($view, $this->user->getId(), $id);
if ($count > 0) {
$this->pagination->set_total($count);
$page_links = str_replace(array('previous', 'next'), array(_('previous'), _('next')),
$this->pagination->page_links('?view=' . $view . '&sort=' . $_SESSION['sort'] . (($id)?'&id='.$id:'') . '&' ));
$tpl_vars['entries'] = $this->store->getEntriesByView($view, $this->user->getId(), $this->pagination->get_limit(), $id);
$tpl_vars['page_links'] = $page_links;
$tpl_vars['nb_results'] = $count;
}
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Tools::logm('display ' . $view . ' view');
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break;
}
return $tpl_vars;
}
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/**
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* update the password of the current user.
* if MODE_DEMO is TRUE, the password can't be updated.
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* @todo add the return value
* @todo set the new password in function header like this updatePassword($newPassword)
* @return boolean
*/
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public function updatePassword($password, $confirmPassword)
{
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if (MODE_DEMO) {
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$this->messages->add('i', _('in demo mode, you can\'t update your password'));
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Tools::logm('in demo mode, you can\'t do this');
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Tools::redirect('?view=config');
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}
else {
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if (isset($password) && isset($confirmPassword)) {
if ($password == $confirmPassword && !empty($password)) {
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$this->messages->add('s', _('your password has been updated'));
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$this->store->updatePassword($this->user->getId(), Tools::encodeString($password . $this->user->getUsername()));
Session::logout();
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Tools::logm('password updated');
Tools::redirect();
}
else {
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$this->messages->add('e', _('the two fields have to be filled & the password must be the same in the two fields'));
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Tools::redirect('?view=config');
}
}
}
}
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/**
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* Get credentials from differents sources
* It redirects the user to the $referer link
*
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* @return array
*/
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private function credentials()
{
if (isset($_SERVER['PHP_AUTH_USER'])) {
return array($_SERVER['PHP_AUTH_USER'], 'php_auth', true);
}
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if (!empty($_POST['login']) && !empty($_POST['password'])) {
return array($_POST['login'], $_POST['password'], false);
}
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if (isset($_SERVER['REMOTE_USER'])) {
return array($_SERVER['REMOTE_USER'], 'http_auth', true);
}
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return array(false, false, false);
}
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/**
* checks if login & password are correct and save the user in session.
* it redirects the user to the $referer link
* @param string $referer the url to redirect after login
* @todo add the return value
* @return boolean
*/
public function login($referer)
{
list($login,$password,$isauthenticated)=$this->credentials();
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if($login === false || $password === false) {
$this->messages->add('e', _('login failed: you have to fill all fields'));
Tools::logm('login failed');
Tools::redirect();
}
if (!empty($login) && !empty($password)) {
$user = $this->store->login($login, Tools::encodeString($password . $login), $isauthenticated);
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if ($user != array()) {
# Save login into Session
$longlastingsession = isset($_POST['longlastingsession']);
$passwordTest = ($isauthenticated) ? $user['password'] : Tools::encodeString($password . $login);
Session::login($user['username'], $user['password'], $login, $passwordTest, $longlastingsession, array('poche_user' => new User($user)));
$this->messages->add('s', _('welcome to your wallabag'));
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Tools::logm('login successful');
Tools::redirect($referer);
}
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$this->messages->add('e', _('login failed: bad login or password'));
Tools::logm('login failed');
Tools::redirect();
}
}
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/**
* log out the poche user. It cleans the session.
* @todo add the return value
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* @return boolean
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*/
public function logout()
{
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$this->user = array();
Session::logout();
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Tools::logm('logout');
Tools::redirect();
}
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/**
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* import datas into your wallabag
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* @return boolean
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*/
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public function import()
{
if (isset($_FILES['file'])) {
Tools::logm('Import stated: parsing file');
// assume, that file is in json format
$str_data = file_get_contents($_FILES['file']['tmp_name']);
$data = json_decode($str_data, true);
if ($data === null) {
// not json - assume html
$html = new simple_html_dom();
$html->load_file($_FILES['file']['tmp_name']);
$data = array();
$read = 0;
foreach(array('ol','ul') as $list) {
foreach($html->find($list) as $ul) {
foreach($ul->find('li') as $li) {
$tmpEntry = array();
$a = $li->find('a');
$tmpEntry['url'] = $a[0]->href;
$tmpEntry['tags'] = $a[0]->tags;
$tmpEntry['is_read'] = $read;
if ($tmpEntry['url']) {
$data[] = $tmpEntry;
}
}
// the second <ol/ul> is for read links
$read = ((sizeof($data) && $read) ? 0 : 1);
}
}
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}
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// for readability structure
foreach($data as $record) {
if (is_array($record)) {
$data[] = $record;
foreach($record as $record2) {
if (is_array($record2)) {
$data[] = $record2;
}
}
}
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}
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$urlsInserted = array(); //urls of articles inserted
foreach($data as $record) {
$url = trim(isset($record['article__url']) ? $record['article__url'] : (isset($record['url']) ? $record['url'] : ''));
if ($url and !in_array($url, $urlsInserted)) {
$title = (isset($record['title']) ? $record['title'] : _('Untitled - Import - ') . '</a> <a href="./?import">' . _('click to finish import') . '</a><a>');
$body = (isset($record['content']) ? $record['content'] : '');
$isRead = (isset($record['is_read']) ? intval($record['is_read']) : (isset($record['archive']) ? intval($record['archive']) : 0));
$isFavorite = (isset($record['is_fav']) ? intval($record['is_fav']) : (isset($record['favorite']) ? intval($record['favorite']) : 0));
// insert new record
$id = $this->store->add($url, $title, $body, $this->user->getId() , $isFavorite, $isRead);
if ($id) {
$urlsInserted[] = $url; //add
if (isset($record['tags']) && trim($record['tags'])) {
// @TODO: set tags
}
}
}
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}
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$i = sizeof($urlsInserted);
if ($i > 0) {
$this->messages->add('s', _('Articles inserted: ') . $i . _('. Please note, that some may be marked as "read".'));
}
Tools::logm('Import of articles finished: ' . $i . ' articles added (w/o content if not provided).');
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}
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// file parsing finished here
// now download article contents if any
// check if we need to download any content
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$recordsDownloadRequired = $this->store->retrieveUnfetchedEntriesCount($this->user->getId());
if ($recordsDownloadRequired == 0) {
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// nothing to download
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$this->messages->add('s', _('Import finished.'));
Tools::logm('Import finished completely');
Tools::redirect();
}
else {
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// if just inserted - don't download anything, download will start in next reload
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if (!isset($_FILES['file'])) {
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// download next batch
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Tools::logm('Fetching next batch of articles...');
$items = $this->store->retrieveUnfetchedEntries($this->user->getId() , IMPORT_LIMIT);
$purifier = $this->_getPurifier();
foreach($items as $item) {
$url = new Url(base64_encode($item['url']));
Tools::logm('Fetching article ' . $item['id']);
$content = Tools::getPageContent($url);
$title = (($content['rss']['channel']['item']['title'] != '') ? $content['rss']['channel']['item']['title'] : _('Untitled'));
$body = (($content['rss']['channel']['item']['description'] != '') ? $content['rss']['channel']['item']['description'] : _('Undefined'));
// clean content to prevent xss attack
$title = $purifier->purify($title);
$body = $purifier->purify($body);
$this->store->updateContentAndTitle($item['id'], $title, $body, $this->user->getId());
Tools::logm('Article ' . $item['id'] . ' updated.');
}
}
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}
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return array(
'includeImport' => true,
'import' => array(
'recordsDownloadRequired' => $recordsDownloadRequired,
'recordsUnderDownload' => IMPORT_LIMIT,
'delay' => IMPORT_DELAY * 1000
)
);
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}
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/**
* export poche entries in json
* @return json all poche entries
*/
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public function export()
{
$filename = "wallabag-export-".$this->user->getId()."-".date("Y-m-d").".json";
header('Content-Disposition: attachment; filename='.$filename);
$entries = $this->store->retrieveAll($this->user->getId());
echo $this->tpl->render('export.twig', array(
'export' => Tools::renderJson($entries),
));
Tools::logm('export view');
}
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/**
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* Checks online the latest version of poche and cache it
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* @param string $which 'prod' or 'dev'
* @return string latest $which version
*/
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private function _getPocheVersion($which = 'prod') {
$cache_file = CACHE . '/' . $which;
$check_time = time();
# checks if the cached version file exists
if (file_exists($cache_file) && (filemtime($cache_file) > (time() - 86400 ))) {
$version = file_get_contents($cache_file);
$check_time = filemtime($cache_file);
} else {
$version = file_get_contents('http://static.wallabag.org/versions/' . $which);
file_put_contents($cache_file, $version, LOCK_EX);
}
return array($version, $check_time);
}
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/**
* Update token for current user
*/
public function updateToken()
{
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$token = Tools::generateToken();
$this->store->updateUserConfig($this->user->getId(), 'token', $token);
$currentConfig = $_SESSION['poche_user']->config;
$currentConfig['token'] = $token;
$_SESSION['poche_user']->setConfig($currentConfig);
Tools::redirect();
}
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/**
* Generate RSS feeds for current user
*
* @param $token
* @param $user_id
* @param $tag_id
* @param string $type
*/
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public function generateFeeds($token, $user_id, $tag_id, $type = 'home')
{
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$allowed_types = array('home', 'fav', 'archive', 'tag');
$config = $this->store->getConfigUser($user_id);
if ($config == null) {
die(sprintf(_('User with this id (%d) does not exist.'), $user_id));
}
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if (!in_array($type, $allowed_types) || !isset($config['token']) || $token != $config['token']) {
die(_('Uh, there is a problem while generating feed. Wrong token used?'));
}
$feed = new FeedWriter(RSS2);
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$feed->setTitle('wallabag — ' . $type . ' feed');
$feed->setLink(Tools::getPocheUrl());
$feed->setChannelElement('pubDate', date(DATE_RSS , time()));
$feed->setChannelElement('generator', 'wallabag');
$feed->setDescription('wallabag ' . $type . ' elements');
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if ($type == 'tag') {
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$entries = $this->store->retrieveEntriesByTag($tag_id, $user_id);
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}
else {
$entries = $this->store->getEntriesByView($type, $user_id);
}
if (count($entries) > 0) {
foreach ($entries as $entry) {
$newItem = $feed->createNewItem();
$newItem->setTitle($entry['title']);
$newItem->setSource(Tools::getPocheUrl() . '?view=view&amp;id=' . $entry['id']);
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$newItem->setLink($entry['url']);
$newItem->setDate(time());
$newItem->setDescription($entry['content']);
$feed->addItem($newItem);
}
}
$feed->genarateFeed();
exit;
}
/**
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* Returns new purifier object with actual config
*/
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private function _getPurifier()
{
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.SerializerPath', CACHE);
$config->set('HTML.SafeIframe', true);
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//allow YouTube, Vimeo and dailymotion videos
$config->set('URI.SafeIframeRegexp', '%^(https?:)?//(www\.youtube(?:-nocookie)?\.com/embed/|player\.vimeo\.com/video/|www\.dailymotion\.com/embed/video/)%');
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return new HTMLPurifier($config);
}
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}