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Commit 8554b74b authored by Elmar Ludwig's avatar Elmar Ludwig
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fix redirect on shib login, fixes #3220 

Closes #3220

Merge request !2207
parent abe91c4f
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lib/classes/auth_plugins/StudipAuthShib.class.php
+ 4
− 31
View file @ 8554b74b
......@@ -14,7 +14,7 @@
class StudipAuthShib extends StudipAuthSSO
{
public $env_remote_user = 'HTTP_REMOTE_USER';
public $env_remote_user = 'REMOTE_USER';
public $local_domain;
public $session_initiator;
public $validate_url;
......@@ -59,29 +59,6 @@ class StudipAuthShib extends StudipAuthSSO
return $this->userdata['username'];
}
/**
* Return the current URL (including parameters).
*/
function getURL()
{
$url = $_SERVER['HTTPS'] == 'on' ? 'https' : 'http';
$url .= '://';
if (empty($_SERVER['SERVER_NAME'])) {
$url .= $_SERVER['HTTP_HOST'];
} else {
$url .= $_SERVER['SERVER_NAME'];
}
if ($_SERVER['HTTPS'] == 'on' && $_SERVER['SERVER_PORT'] != 443 ||
$_SERVER['HTTPS'] != 'on' && $_SERVER['SERVER_PORT'] != 80) {
$url .= ':' . $_SERVER['SERVER_PORT'];
}
$url .= $_SERVER['REQUEST_URI'];
return $url;
}
/**
* Validate the username passed to the auth plugin.
* Note: This triggers authentication if needed.
......@@ -93,24 +70,20 @@ class StudipAuthShib extends StudipAuthSSO
return $this->getUser();
}
$remote_user = $_SERVER[$this->env_remote_user] ?? $_SERVER['REMOTE_USER'] ?? '';
$remote_user = $_SERVER[$this->env_remote_user] ?? null;
if (empty($remote_user) || isset($this->validate_url)) {
if (Request::get('sso') === $this->plugin_name) {
// force Shibboleth authentication (lazy session)
$shib_url = URLHelper::getURL(
$this->session_initiator,
['target' => $this->getURL()],
['target' => Request::url()],
true
);
// break redirection loop in case of misconfiguration
if (
isset($_SERVER['HTTP_REFERER'])
&& !str_contains($_SERVER['HTTP_REFERER'], 'target=')
) {
if (strpos($_SERVER['HTTP_REFERER'] ?? '', 'target=') === false) {
header('Location: ' . $shib_url);
echo '<html></html>';
exit();
}
}
......
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