From 104fd02cb0c597d828903ef77bf3806e57872684 Mon Sep 17 00:00:00 2001
From: Olav Morken <olav.morken@uninett.no>
Date: Tue, 10 Jan 2012 13:10:52 +0000
Subject: [PATCH] Utilities: Introduce normalizeURL().
This function normalizes the URL to an absolute URL, and makes sure
that it is a link to a http or https site.
git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3008 44740490-163a-0410-bde0-09ae8108e29a
---
lib/SimpleSAML/Utilities.php | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/lib/SimpleSAML/Utilities.php b/lib/SimpleSAML/Utilities.php
index f09580f94..56ae886f1 100644
--- a/lib/SimpleSAML/Utilities.php
+++ b/lib/SimpleSAML/Utilities.php
@@ -1186,6 +1186,29 @@ class SimpleSAML_Utilities {
}
+ /**
+ * Normalizes an URL to an absolute URL and validate it.
+ *
+ * In addition to resolving the URL, this function makes sure that it is
+ * a link to a http or https site.
+ *
+ * @param string $url The relative URL.
+ * @return string An absolute URL for the given relative URL.
+ */
+ public static function normalizeURL($url) {
+ assert('is_string($url)');
+
+ $url = SimpleSAML_Utilities::resolveURL($url, SimpleSAML_Utilities::selfURL());
+
+ /* Verify that the URL is to a http or https site. */
+ if (!preg_match('@^https?://@i', $url)) {
+ throw new SimpleSAML_Error_Exception('Invalid URL: ' . $url);
+ }
+
+ return $url;
+ }
+
+
/**
* Parse a query string into an array.
*
--
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