109 lines
3.0 KiB
PHP
109 lines
3.0 KiB
PHP
<?php
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namespace OC\Connector\Sabre;
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class Auth extends \Sabre\DAV\Auth\Backend\AbstractBasic {
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const DAV_AUTHENTICATED = 'AUTHENTICATED_TO_DAV_BACKEND';
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/**
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* Whether the user has initially authenticated via DAV
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*
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* This is required for WebDAV clients that resent the cookies even when the
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* account was changed.
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*
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* @see https://github.com/owncloud/core/issues/13245
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*
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* @param string $username
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* @return bool
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*/
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protected function isDavAuthenticated($username) {
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return !is_null(\OC::$server->getSession()->get(self::DAV_AUTHENTICATED)) &&
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\OC::$server->getSession()->get(self::DAV_AUTHENTICATED) === $username;
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}
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/**
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* Validates a username and password
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*
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* This method should return true or false depending on if login
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* succeeded.
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*
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* @param string $username
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* @param string $password
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* @return bool
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*/
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protected function validateUserPass($username, $password) {
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if (\OC_User::isLoggedIn() &&
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$this->isDavAuthenticated(\OC_User::getUser())
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) {
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\OC_Util::setupFS(\OC_User::getUser());
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\OC::$server->getSession()->close();
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return true;
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} else {
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\OC_Util::setUpFS(); //login hooks may need early access to the filesystem
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if(\OC_User::login($username, $password)) {
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// make sure we use owncloud's internal username here
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// and not the HTTP auth supplied one, see issue #14048
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$ocUser = \OC_User::getUser();
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\OC_Util::setUpFS($ocUser);
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\OC::$server->getSession()->set(self::DAV_AUTHENTICATED, $ocUser);
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\OC::$server->getSession()->close();
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return true;
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} else {
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\OC::$server->getSession()->close();
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return false;
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}
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}
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}
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/**
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* Returns information about the currently logged in username.
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*
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* If nobody is currently logged in, this method should return null.
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*
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* @return string|null
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*/
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public function getCurrentUser() {
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$user = \OC_User::getUser();
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if($user && $this->isDavAuthenticated($user)) {
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return $user;
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}
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return null;
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}
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/**
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* Override function here. We want to cache authentication cookies
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* in the syncing client to avoid HTTP-401 roundtrips.
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* If the sync client supplies the cookies, then OC_User::isLoggedIn()
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* will return true and we can see this WebDAV request as already authenticated,
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* even if there are no HTTP Basic Auth headers.
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* In other case, just fallback to the parent implementation.
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*
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* @param \Sabre\DAV\Server $server
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* @param $realm
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* @return bool
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*/
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public function authenticate(\Sabre\DAV\Server $server, $realm) {
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$result = $this->auth($server, $realm);
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return $result;
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}
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/**
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* @param \Sabre\DAV\Server $server
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* @param $realm
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* @return bool
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*/
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private function auth(\Sabre\DAV\Server $server, $realm) {
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if (\OC_User::handleApacheAuth() ||
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(\OC_User::isLoggedIn() && is_null(\OC::$server->getSession()->get(self::DAV_AUTHENTICATED)))
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) {
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$user = \OC_User::getUser();
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\OC_Util::setupFS($user);
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$this->currentUser = $user;
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\OC::$server->getSession()->close();
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return true;
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}
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return parent::authenticate($server, $realm);
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}
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}
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