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Move checkSSO() from Context class to Session class

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This commit is contained in:
Kijin Sung 2017-02-07 23:26:43 +09:00
parent 483ac84796
commit af41f36bf7
3 changed files with 106 additions and 92 deletions
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92
classes/context/Context.class.php
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@ -670,97 +670,7 @@ class Context
*/
public function checkSSO()
{
// pass if it's not GET request or XE is not yet installed
if(!config('use_sso') || Rhymix\Framework\UA::isRobot())
{
return TRUE;
}
$checkActList = array('rss' => 1, 'atom' => 1);
if(self::getRequestMethod() != 'GET' || !self::isInstalled() || isset($checkActList[self::get('act')]))
{
return TRUE;
}
// pass if default URL is not set
$default_url = trim($this->db_info->default_url);
if(!$default_url)
{
return TRUE;
}
if(substr_compare($default_url, '/', -1) !== 0)
{
$default_url .= '/';
}
// Get current site information (only the base URL, not the full URL)
$current_site = self::getRequestUri();
// Step 1: if the current site is not the default site, send SSO validation request to the default site
if($default_url !== $current_site && !self::get('sso_response') && $_COOKIE['sso'] !== md5($current_site))
{
// Set sso cookie to prevent multiple simultaneous SSO validation requests
setcookie('sso', md5($current_site), 0, '/');
// Redirect to the default site
$sso_request = Rhymix\Framework\Security::encrypt(Rhymix\Framework\URL::getCurrentURL());
$redirect_url = $default_url . '?sso_request=' . urlencode($sso_request);
header('Location:' . $redirect_url);
return false;
}
// Step 2: receive and process SSO validation request at the default site
if($default_url === $current_site && self::get('sso_request'))
{
// Get the URL of the origin site
$sso_request = Rhymix\Framework\Security::decrypt(self::get('sso_request'));
if (!$sso_request || !preg_match('!^https?://!', $sso_request))
{
self::displayErrorPage('SSO Error', 'Invalid SSO Request', 400);
return false;
}
// Check that the origin site is a valid site in this XE installation (to prevent open redirect vuln)
if(!getModel('module')->getSiteInfoByDomain(rtrim($url, '/'))->site_srl)
{
self::displayErrorPage('SSO Error', 'Invalid SSO Request', 400);
return false;
}
// Redirect back to the origin site
$sso_response = Rhymix\Framework\Security::encrypt(session_id());
header('Location: ' . Rhymix\Framework\URL::modifyURL($sso_request, array('sso_response' => $sso_response)));
return false;
}
// Step 3: back at the origin site, set session ID to be the same as the default site
if($default_url !== $current_site && self::get('sso_response'))
{
// Check SSO response
$sso_response = Rhymix\Framework\Security::decrypt(self::get('sso_response'));
if ($sso_response === false)
{
self::displayErrorPage('SSO Error', 'Invalid SSO Response', 400);
return false;
}
// Check that the response was given by the default site (to prevent session fixation CSRF)
if(isset($_SERVER['HTTP_REFERER']) && strpos($_SERVER['HTTP_REFERER'], $default_url) !== 0)
{
self::displayErrorPage('SSO Error', 'Invalid SSO Response', 400);
return false;
}
// Set session ID
setcookie(session_name(), $sso_response);
// Finally, redirect to the originally requested URL
header('Location: ' . Rhymix\Framework\URL::getCurrentURL(array('sso_response' => null)));
return false;
}
// If none of the conditions above apply, proceed normally
return TRUE;
return !Rhymix\Framework\Session::checkSSO();
}
/**