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<?php
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/**
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* Controller to handle user actions.
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*/
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class FreshRSS_user_Controller extends Minz_ActionController {
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// Will also have to be computed client side on mobile devices,
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// so do not use a too high cost
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const BCRYPT_COST = 9;
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/**
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* This action is called before every other action in that class. It is
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* the common boiler plate for every action. It is triggered by the
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* underlying framework.
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*
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* @todo clean up the access condition.
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*/
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public function firstAction() {
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if (!FreshRSS_Auth::hasAccess() && !(
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Minz_Request::actionName() === 'create' &&
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!max_registrations_reached()
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)) {
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Minz_Error::error(403);
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}
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}
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public static function hashPassword($passwordPlain) {
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if (!function_exists('password_hash')) {
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include_once(LIB_PATH . '/password_compat.php');
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}
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$passwordHash = password_hash($passwordPlain, PASSWORD_BCRYPT, array('cost' => self::BCRYPT_COST));
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$passwordPlain = '';
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$passwordHash = preg_replace('/^\$2[xy]\$/', '\$2a\$', $passwordHash); //Compatibility with bcrypt.js
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return $passwordHash == '' ? '' : $passwordHash;
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}
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/**
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* The username is also used as folder name, file name, and part of SQL table name.
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* '_' is a reserved internal username.
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*/
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const USERNAME_PATTERN = '[0-9a-zA-Z_][0-9a-zA-Z_.]{1,38}|[0-9a-zA-Z]';
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public static function checkUsername($username) {
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return preg_match('/^' . self::USERNAME_PATTERN . '$/', $username) === 1;
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}
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public static function deleteFeverKey($username) {
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$userConfig = get_user_configuration($username);
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if ($userConfig !== null && ctype_xdigit($userConfig->feverKey)) {
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return @unlink(DATA_PATH . '/fever/.key-' . sha1(FreshRSS_Context::$system_conf->salt) . '-' . $userConfig->feverKey . '.txt');
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}
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return false;
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}
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public static function updateUser($user, $passwordPlain, $apiPasswordPlain, $userConfigUpdated = array()) {
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$userConfig = get_user_configuration($user);
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if ($userConfig === null) {
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return false;
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}
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if ($passwordPlain != '') {
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$passwordHash = self::hashPassword($passwordPlain);
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$userConfig->passwordHash = $passwordHash;
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}
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if ($apiPasswordPlain != '') {
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$apiPasswordHash = self::hashPassword($apiPasswordPlain);
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$userConfig->apiPasswordHash = $apiPasswordHash;
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@mkdir(DATA_PATH . '/fever/', 0770, true);
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self::deleteFeverKey($user);
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$userConfig->feverKey = strtolower(md5($user . ':' . $apiPasswordPlain));
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$ok = file_put_contents(DATA_PATH . '/fever/.key-' . sha1(FreshRSS_Context::$system_conf->salt) . '-' . $userConfig->feverKey . '.txt', $user) !== false;
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if (!$ok) {
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Minz_Log::warning('Could not save API credentials for fever API', ADMIN_LOG);
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return $ok;
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}
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}
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if (is_array($userConfigUpdated)) {
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foreach ($userConfigUpdated as $configName => $configValue) {
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if ($configValue !== null) {
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$userConfig->_param($configName, $configValue);
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}
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}
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}
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$ok = $userConfig->save();
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return $ok;
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}
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public function updateAction() {
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if (!FreshRSS_Auth::hasAccess('admin')) {
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Minz_Error::error(403);
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}
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if (Minz_Request::isPost()) {
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$passwordPlain = Minz_Request::param('newPasswordPlain', '', true);
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Minz_Request::_param('newPasswordPlain'); //Discard plain-text password ASAP
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$_POST['newPasswordPlain'] = '';
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$apiPasswordPlain = Minz_Request::param('apiPasswordPlain', '', true);
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$username = Minz_Request::param('username');
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$ok = self::updateUser($username, $passwordPlain, $apiPasswordPlain, array(
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'token' => Minz_Request::param('token', null),
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));
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if ($ok) {
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$isSelfUpdate = Minz_Session::param('currentUser', '_') === $username;
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if ($passwordPlain == '' || !$isSelfUpdate) {
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Minz_Request::good(_t('feedback.user.updated', $username), array('c' => 'user', 'a' => 'manage'));
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} else {
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Minz_Request::good(_t('feedback.profile.updated'), array('c' => 'index', 'a' => 'index'));
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}
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} else {
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Minz_Request::bad(_t('feedback.user.updated.error', $username),
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array('c' => 'user', 'a' => 'manage'));
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}
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}
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}
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/**
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* This action displays the user profile page.
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*/
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public function profileAction() {
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Minz_View::prependTitle(_t('conf.profile.title') . ' · ');
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Minz_View::appendScript(Minz_Url::display(
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'/scripts/bcrypt.min.js?' . @filemtime(PUBLIC_PATH . '/scripts/bcrypt.min.js')
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));
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if (Minz_Request::isPost()) {
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$passwordPlain = Minz_Request::param('newPasswordPlain', '', true);
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Minz_Request::_param('newPasswordPlain'); //Discard plain-text password ASAP
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$_POST['newPasswordPlain'] = '';
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$apiPasswordPlain = Minz_Request::param('apiPasswordPlain', '', true);
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$ok = self::updateUser(Minz_Session::param('currentUser'), $passwordPlain, $apiPasswordPlain, array(
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'token' => Minz_Request::param('token', null),
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));
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Minz_Session::_param('passwordHash', FreshRSS_Context::$user_conf->passwordHash);
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if ($ok) {
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if ($passwordPlain == '') {
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Minz_Request::good(_t('feedback.profile.updated'), array('c' => 'user', 'a' => 'profile'));
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} else {
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Minz_Request::good(_t('feedback.profile.updated'), array('c' => 'index', 'a' => 'index'));
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}
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} else {
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Minz_Request::bad(_t('feedback.profile.error'),
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array('c' => 'user', 'a' => 'profile'));
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}
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}
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}
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/**
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* This action displays the user management page.
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*/
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public function manageAction() {
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if (!FreshRSS_Auth::hasAccess('admin')) {
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Minz_Error::error(403);
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}
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Minz_View::prependTitle(_t('admin.user.title') . ' · ');
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$this->view->current_user = Minz_Request::param('u');
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$this->view->nb_articles = 0;
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$this->view->size_user = 0;
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if ($this->view->current_user) {
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// Get information about the current user.
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$entryDAO = FreshRSS_Factory::createEntryDao($this->view->current_user);
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$this->view->nb_articles = $entryDAO->count();
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$databaseDAO = FreshRSS_Factory::createDatabaseDAO($this->view->current_user);
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$this->view->size_user = $databaseDAO->size();
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}
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}
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public static function createUser($new_user_name, $passwordPlain, $apiPasswordPlain, $userConfig = array(), $insertDefaultFeeds = true) {
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if (!is_array($userConfig)) {
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$userConfig = array();
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}
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$ok = self::checkUsername($new_user_name);
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$homeDir = join_path(DATA_PATH, 'users', $new_user_name);
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if ($ok) {
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$languages = Minz_Translate::availableLanguages();
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if (empty($userConfig['language']) || !in_array($userConfig['language'], $languages)) {
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$userConfig['language'] = 'en';
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}
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$ok &= !in_array(strtoupper($new_user_name), array_map('strtoupper', listUsers())); //Not an existing user, case-insensitive
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$configPath = join_path($homeDir, 'config.php');
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$ok &= !file_exists($configPath);
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}
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if ($ok) {
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if (!is_dir($homeDir)) {
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mkdir($homeDir);
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}
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$ok &= (file_put_contents($configPath, "<?php\n return " . var_export($userConfig, true) . ';') !== false);
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}
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if ($ok) {
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$userDAO = new FreshRSS_UserDAO();
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$ok &= $userDAO->createUser($new_user_name, $userConfig['language'], $insertDefaultFeeds);
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$ok &= self::updateUser($new_user_name, $passwordPlain, $apiPasswordPlain);
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}
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return $ok;
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}
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/**
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* This action creates a new user.
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*
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* Request parameters are:
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* - new_user_language
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* - new_user_name
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* - new_user_passwordPlain
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* - r (i.e. a redirection url, optional)
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*
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* @todo clean up this method. Idea: write a method to init a user with basic information.
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* @todo handle r redirection in Minz_Request::forward directly?
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*/
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public function createAction() {
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if (Minz_Request::isPost() && (
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FreshRSS_Auth::hasAccess('admin') ||
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!max_registrations_reached()
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)) {
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$new_user_name = Minz_Request::param('new_user_name');
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$passwordPlain = Minz_Request::param('new_user_passwordPlain', '', true);
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$new_user_language = Minz_Request::param('new_user_language', FreshRSS_Context::$user_conf->language);
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$ok = self::createUser($new_user_name, $passwordPlain, '', array('language' => $new_user_language));
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Minz_Request::_param('new_user_passwordPlain'); //Discard plain-text password ASAP
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$_POST['new_user_passwordPlain'] = '';
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invalidateHttpCache();
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// If the user has admin access, it means he's already logged in
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// and we don't want to login with the new account. Otherwise, the
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// user just created its account himself so he probably wants to
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// get started immediately.
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if ($ok && !FreshRSS_Auth::hasAccess('admin')) {
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$user_conf = get_user_configuration($new_user_name);
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Minz_Session::_param('currentUser', $new_user_name);
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Minz_Session::_param('passwordHash', $user_conf->passwordHash);
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FreshRSS_Auth::giveAccess();
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}
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$notif = array(
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'type' => $ok ? 'good' : 'bad',
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'content' => _t('feedback.user.created' . (!$ok ? '.error' : ''), $new_user_name)
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);
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Minz_Session::_param('notification', $notif);
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}
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$redirect_url = urldecode(Minz_Request::param('r', false, true));
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if (!$redirect_url) {
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$redirect_url = array('c' => 'user', 'a' => 'manage');
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}
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Minz_Request::forward($redirect_url, true);
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}
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public static function deleteUser($username) {
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$db = FreshRSS_Context::$system_conf->db;
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require_once(APP_PATH . '/SQL/install.sql.' . $db['type'] . '.php');
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$ok = self::checkUsername($username);
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if ($ok) {
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$default_user = FreshRSS_Context::$system_conf->default_user;
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$ok &= (strcasecmp($username, $default_user) !== 0); //It is forbidden to delete the default user
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}
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$user_data = join_path(DATA_PATH, 'users', $username);
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$ok &= is_dir($user_data);
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if ($ok) {
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self::deleteFeverKey($username);
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$userDAO = new FreshRSS_UserDAO();
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$ok &= $userDAO->deleteUser($username);
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$ok &= recursive_unlink($user_data);
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array_map('unlink', glob(PSHB_PATH . '/feeds/*/' . $username . '.txt'));
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}
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return $ok;
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}
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/**
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* This action delete an existing user.
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*
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* Request parameter is:
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* - username
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*
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* @todo clean up this method. Idea: create a User->clean() method.
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*/
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public function deleteAction() {
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$username = Minz_Request::param('username');
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$redirect_url = urldecode(Minz_Request::param('r', false, true));
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if (!$redirect_url) {
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$redirect_url = array('c' => 'user', 'a' => 'manage');
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}
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$self_deletion = Minz_Session::param('currentUser', '_') === $username;
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if (Minz_Request::isPost() && (
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FreshRSS_Auth::hasAccess('admin') ||
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$self_deletion
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)) {
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$ok = true;
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if ($ok && $self_deletion) {
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// We check the password if it's a self-destruction
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$nonce = Minz_Session::param('nonce');
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$challenge = Minz_Request::param('challenge', '');
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$ok &= FreshRSS_FormAuth::checkCredentials(
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$username, FreshRSS_Context::$user_conf->passwordHash,
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$nonce, $challenge
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);
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}
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if ($ok) {
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$ok &= self::deleteUser($username);
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}
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if ($ok && $self_deletion) {
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FreshRSS_Auth::removeAccess();
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$redirect_url = array('c' => 'index', 'a' => 'index');
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}
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invalidateHttpCache();
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$notif = array(
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'type' => $ok ? 'good' : 'bad',
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'content' => _t('feedback.user.deleted' . (!$ok ? '.error' : ''), $username)
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);
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Minz_Session::_param('notification', $notif);
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}
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Minz_Request::forward($redirect_url, true);
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}
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}
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