From f0d8ff740ef6c450dcf190b8fc5f1edd2fb6fd8d Mon Sep 17 00:00:00 2001
From: Olav Morken <olav.morken@uninett.no>
Date: Thu, 13 Dec 2007 07:26:44 +0000
Subject: [PATCH] Utilities: Added parseSAML2Time($time) which parses SAML2
timestamps int UNIX timestamps.
git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@91 44740490-163a-0410-bde0-09ae8108e29a
---
lib/SimpleSAML/Utilities.php | 42 ++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/lib/SimpleSAML/Utilities.php b/lib/SimpleSAML/Utilities.php
index c9c40a423..3cf6ee6e5 100644
--- a/lib/SimpleSAML/Utilities.php
+++ b/lib/SimpleSAML/Utilities.php
@@ -174,6 +174,48 @@ class SimpleSAML_Utilities {
$depth++;
}
}
+
+
+ /* This function converts a SAML2 timestamp on the form
+ * yyyy-mm-ddThh:mm:ssZ to a UNIX timestamp.
+ *
+ * Parameters:
+ * $time The time we should convert.
+ *
+ * Returns:
+ * $time converted to a unix timestamp.
+ */
+ public static function parseSAML2Time($time) {
+ $matches = array();
+
+
+ /* We use a very strict regex to parse the timestamp. */
+ if(preg_match('/^(\\d\\d\\d\\d)-(\\d\\d)-(\\d\\d)' .
+ 'T(\\d\\d):(\\d\\d):(\\d\\d)Z$/D',
+ $time, $matches) == 0) {
+ throw new Exception(
+ 'Invalid SAML2 timestamp passed to' .
+ ' parseSAML2Time: ' . $time);
+ }
+
+ /* Extract the different components of the time from the
+ * matches in the regex. intval will ignore leading zeroes
+ * in the string.
+ */
+ $year = intval($matches[1]);
+ $month = intval($matches[2]);
+ $day = intval($matches[3]);
+ $hour = intval($matches[4]);
+ $minute = intval($matches[5]);
+ $second = intval($matches[6]);
+
+ /* We use gmmktime because the timestamp will always be given
+ * in UTC.
+ */
+ $ts = gmmktime($hour, $minute, $second, $month, $day, $year);
+
+ return $ts;
+ }
}
?>
\ No newline at end of file
--
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