use the filter for saml_metadata

Author: jazzsequence

onelogin-saml-sso/onelogin_saml.php

@@ -39,7 +39,7 @@ function disable_password_reset() { return false; }
 $action = isset($_REQUEST['action']) ? $_REQUEST['action'] : 'login';
 
 // Handle SLO
-if (isset($_COOKIE['saml_login']) && get_option('onelogin_saml_slo')) { 
+if (isset($_COOKIE['saml_login']) && get_option('onelogin_saml_slo')) {
 	add_action('init', 'saml_slo', 1);
 }
 
@@ -48,7 +48,8 @@ function disable_password_reset() { return false; }
 	add_action('init', 'saml_sso', 1);
 } else {
 	$execute_sso = false;
-	$saml_actions = isset($_GET['saml_metadata']) || (strpos($_SERVER['SCRIPT_NAME'], 'alternative_acs.php') !== FALSE);
+	$saml_metadata = apply_filters( 'onelogin_saml_metadata', 'saml_metadata' );
+	$saml_actions = isset($_GET[ $saml_metadata ]) || (strpos($_SERVER['SCRIPT_NAME'], 'alternative_acs.php') !== FALSE);
 
 	$wp_login_page = (strpos($_SERVER['SCRIPT_NAME'], 'wp-login.php') !== FALSE) && $action == 'login' && !isset($_GET['loggedout']);
 
@@ -69,7 +70,7 @@ function disable_password_reset() { return false; }
 	} else if ($local_wp_actions) {
 		$prevent_local_login = get_option('onelogin_saml_customize_action_prevent_local_login', false);
 
-		if (($want_to_local_login && $prevent_local_login) || ($want_to_reset && $prevent_reset_password)) {		
+		if (($want_to_local_login && $prevent_local_login) || ($want_to_reset && $prevent_reset_password)) {
 			$execute_sso = True;
 		}
 	}

onelogin-saml-sso/php/configuration.php

@@ -13,14 +13,15 @@
 
 	function onelogin_saml_configuration_render() {
 		$title = __("SSO/SAML Settings", 'onelogin-saml-sso');
+		$saml_metadata = apply_filters( 'onelogin_saml_metadata', 'saml_metadata' );
 		?>
 			<div class="wrap">
 				<?php screen_icon(); ?>
 				<div class="alignleft">
 					<a href="http://www.onelogin.com"><img src="<?php echo plugins_url('onelogin.png', dirname(__FILE__));?>"></a>
 				</div>
 				<div class="alignright">
-					<a href="<?php echo get_site_url().'/wp-login.php?saml_metadata'; ?>" target="blank"><?php echo __("Go to the metadata of this SP", 'onelogin-saml-sso');?></a><br>
+					<a href="<?php echo get_site_url( null, '/wp-login.php?' . $saml_metadata ); ?>" target="blank"><?php echo __("Go to the metadata of this SP", 'onelogin-saml-sso');?></a><br>
 					<a href="<?php echo get_site_url().'/wp-login.php?saml_validate_config'; ?>" target="blank"><?php echo __("Once configured, validate here your OneLogin SSO/SAML Settings", 'onelogin-saml-sso');?></a>
 				</div>
 				<div style="clear:both"></div>