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https://github.com/EGroupware/egroupware.git
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* SAML: support joining a SAML account to an existing one, if configured in setup
notification of user does not yet work, as redirect on login page looses Api\Framework::message() :(
This commit is contained in:
Ralf Becker
parent
a993938134
commit
b7ed148371
@ -654,7 +654,7 @@ class Accounts
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}
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// Include previous contact information to avoid blank history rows
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$contact = array_merge((array)$GLOBALS['egw']->contacts->read($data['person_id']), array(
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$contact = array_merge((array)$GLOBALS['egw']->contacts->read($data['person_id'], true), array(
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'n_given' => $data['account_firstname'],
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'n_family' => $data['account_lastname'],
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'email' => $data['account_email'],
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@ -76,10 +76,11 @@ class Auth
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*
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* Type will be stored in session, to automatic use the same type eg. for conditional use of SAML.
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*
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* @param Backend $type =null default is type from session / auth or login, or if not set config
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* @param string $type =null default is type from session / auth or login, or if not set config
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* @param bool $save_in_session default true, false: do not store backend
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* @return Auth\Backend|Auth\BackendSSO
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*/
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static function backend($type=null)
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static function backend($type=null, $save_in_session=true)
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{
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if (is_null($type))
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{
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@ -106,7 +107,7 @@ class Auth
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{
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throw new Exception\AssertionFailed("Auth backend class $backend_class is NO EGroupware\\Api\Auth\\Backend!");
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}
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Cache::setSession(__CLASS__, 'backend', $type);
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if ($save_in_session) Cache::setSession(__CLASS__, 'backend', $type);
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return $backend;
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}
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@ -127,21 +127,153 @@ class Saml implements BackendSSO
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// check if user already exists
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if (!$GLOBALS['egw']->accounts->name2id($username, 'account_lid', 'u'))
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{
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// fail if auto-creation of authenticated users is NOT configured
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if (empty($GLOBALS['egw_info']['server']['auto_create_acct']))
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if (($existing = $this->checkJoin($_GET['login'], $_GET['passwd'], $username)) ||
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($existing = $this->checkReplaceUsername($username)))
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{
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return null;
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$username = $this->updateJoinedAccount($existing, $attrs);
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}
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else
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{
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// fail if auto-creation of authenticated users is NOT configured
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if (empty($GLOBALS['egw_info']['server']['auto_create_acct']))
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{
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return null;
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}
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$GLOBALS['auto_create_acct'] = [
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'firstname' => $attrs[self::firstName][0],
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'lastname' => $attrs[self::lastName][0],
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'email' => $attrs[self::emailAddress][0],
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];
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}
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$GLOBALS['auto_create_acct'] = [
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'firstname' => $attrs[self::firstName][0],
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'lastname' => $attrs[self::lastName][0],
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'email' => $attrs[self::emailAddress][0],
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];
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}
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// return user session
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return $GLOBALS['egw']->session->create($username, null, null, false, false);
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}
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/**
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* Check if joining a SAML account with an existing accounts is enabled and user specified correct credentials
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*
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* @param string $login login-name entered by user
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* @param string $password password entered by user
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* @param string $username SAML username
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* @return string|null|false existing user-name to join or
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* null if no joining configured or missing credentials or user does not exist or
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* false if authentication with given credentials failed
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*/
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private function checkJoin($login, $password, $username)
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{
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// check SAML username is stored in account_description and we have a matching account
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if ($GLOBALS['egw_info']['server']['saml_join'] === 'description' &&
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($account_id = $GLOBALS['egw']->accounts->name2id($username, 'account_description', 'u')))
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{
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return Api\Accounts::id2name($account_id);
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}
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// check join configuration and if user specified credentials
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if (empty($GLOBALS['egw_info']['server']['saml_join']) || empty($login) || empty($password))
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{
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return null;
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}
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$backend = Api\Auth::backend($GLOBALS['egw_info']['server']['auth_type'] ?: 'sql', false);
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if (!$backend->authenticate($login, $password))
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{
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return false;
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}
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return $login;
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}
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/**
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* Update joined account, if configured
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*
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* @param $account_lid existing account_lid
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* @param array $attrs saml attributes incl. SAML username
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* @return string username to use
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*/
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private function updateJoinedAccount($account_lid, array $attrs)
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{
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if (empty($GLOBALS['egw_info']['server']['saml_join']))
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{
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return $account_lid;
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}
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$account = $update = $GLOBALS['egw']->accounts->read($account_lid);
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switch($GLOBALS['egw_info']['server']['saml_join'])
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{
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case 'usernameemail':
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if (!empty($attrs[self::emailAddress]))
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{
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unset($update['account_email']); // force email update
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}
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// fall through
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case 'username':
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$update['account_lid'] = $attrs[self::usernameOid()][0];
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break;
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case 'description':
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$update['account_description'] = $attrs[self::usernameOid()][0];
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break;
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}
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// update other attributes
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foreach([
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'account_email' => self::emailAddress,
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'account_firstname' => self::firstName,
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'account_lastname' => self::lastName,
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] as $name => $oid)
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{
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if (!empty($attrs[$oid]) && ($name !== 'account_email' || empty($update['account_email'])))
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{
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$update[$name] = $attrs[$oid][0];
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}
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}
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// update account if necessary
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if ($account != $update)
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{
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// notify user about successful update of existing account and evtl. updated account-name
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if ($GLOBALS['egw']->accounts->save($update))
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{
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$msg = lang('Your account has been updated with new data from your identity provider.');
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if ($account['account_lid'] !== $update['account_lid'])
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{
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$msg .= "\n".lang("Please remember to use '%1' as username for local login's from now on!", $update['account_lid']);
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// rename home directory
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Api\Vfs::$is_root = true;
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Api\Vfs::rename('/home/'.$account['account_lid'], '/home/'.$update['account_lid']);
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Api\Vfs::$is_root = false;
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}
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Api\Framework::message($msg, 'notice');
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}
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else
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{
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Api\Framework::message(lang('Updating your account with new data from your identity provider failed!'), 'error');
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}
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}
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return $update['account_lid'];
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}
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/**
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* Check if some replacement is configured to match SAML usernames to existing ones
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*
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* @param string $username SAML username
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* @return string|null existing username or null if not found
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*/
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private function checkReplaceUsername($username)
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{
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if (empty($GLOBALS['egw_info']['server']['saml_replace']))
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{
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return null;
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}
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$replace = $GLOBALS['egw_info']['server']['saml_replace'];
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$with = $GLOBALS['egw_info']['server']['saml_replace_with'] ?? '';
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$replaced = $replace[0] === '/' ? preg_replace($replaced, $with, $username) : str_replace($replace, $with, $username);
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if (empty($replaced) || !$GLOBALS['egw']->accounts->name2id($replaced, 'account_lid', 'u'))
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{
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return null;
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}
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return $replaced;
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}
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/**
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* Logout SSO system
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*/
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32
login.php
32
login.php
@ -51,6 +51,22 @@ if(isset($GLOBALS['sitemgr_info']) && $GLOBALS['egw_info']['user']['userid'] ==
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}
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}
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$forward = isset($_GET['phpgw_forward']) ? urldecode($_GET['phpgw_forward']) : @$_POST['phpgw_forward'];
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if (!$forward)
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{
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$extra_vars['cd'] = 'yes';
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$forward = '/index.php';
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}
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else
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{
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list($forward,$extra_vars) = explode('?',$forward,2);
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// only append cd=yes, if there is not already a cd value!
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if (strpos($extra_vars, 'cd=') === false)
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{
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$extra_vars .= ($extra_vars ? '&' : '').'cd=yes';
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}
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}
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// SSO login: CAS, SAML, ...
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if (($GLOBALS['sessionid'] = Api\Auth::login()))
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{
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@ -241,22 +257,6 @@ else
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// check if new translations are available
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Api\Translation::check_invalidate_cache();
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$forward = isset($_GET['phpgw_forward']) ? urldecode($_GET['phpgw_forward']) : @$_POST['phpgw_forward'];
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if (!$forward)
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{
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$extra_vars['cd'] = 'yes';
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$forward = '/index.php';
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}
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else
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{
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list($forward,$extra_vars) = explode('?',$forward,2);
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// only append cd=yes, if there is not already a cd value!
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if (strpos($extra_vars, 'cd=') === false)
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{
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$extra_vars .= ($extra_vars ? '&' : '').'cd=yes';
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}
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}
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if(strpos($_SERVER['HTTP_REFERER'], $_SERVER['REQUEST_URI']) === false) {
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// login requuest does not come from login.php
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// redirect to referer on logout
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@ -521,6 +521,26 @@
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</td>
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</tr>
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<tr class="row_on">
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<td>{lang_Allow_SAML_logins_to_join_existing_accounts}:<br/>({lang_Requires_SAML_optional_on_login_page_and_user_to_specify_username_and_password})</td>
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<td>
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<select name="newsettings[saml_join]">
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<option value="">{lang_No}</option>
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<option value="usernameemail"{selected_saml_join_usernameemail}>{lang_Replace_username_and_email}</option>
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<option value="username"{selected_saml_join_username}>{lang_Replace_username_and_keep_email}</option>
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<option value="description"{selected_saml_join_description}>{lang_Use_account_description_to_store_SAML_username}</option>
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</select>
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</td>
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</tr>
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<tr class="row_off">
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<td>{lang_Match_SAML_usernames_to_existing_ones_(use_strings_or_regular_expression)}:</td>
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<td>
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<input name="newsettings[saml_replace]" placeholder="{lang_replace}: '@uni-kl.de' {lang_or} '/@(uni-kl\.de)$/'" value="{value_saml_replace}" size="40"/>
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<input name="newsettings[saml_replace_with]" placeholder="{lang_with}: '@rhrk.uni-kl.de' {lang_or} '@rhrk.$1'" value="{value_saml_replace_with}" size="35"/>
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</td>
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</tr>
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<tr class="row_on" height="25">
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<td>{lang_Some_information_for_the_own_Service_Provider_metadata}:</td>
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<td><a href="{value_webserver_url}/saml/module.php/saml/sp/metadata.php/default-sp">{lang_Metadata_URL}</a></td>
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