From 80d860a0463acb77faf6edc082e5d1ddb2379c0c Mon Sep 17 00:00:00 2001
From: Olav Morken <olav.morken@uninett.no>
Date: Mon, 9 Jun 2008 08:04:38 +0000
Subject: [PATCH] Utilities: add resolvePath function.
git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@617 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 cec167f7c..17a344591 100644
--- a/lib/SimpleSAML/Utilities.php
+++ b/lib/SimpleSAML/Utilities.php
@@ -932,6 +932,48 @@ class SimpleSAML_Utilities {
return $ret;
}
+
+ /**
+ * Resolve a (possibly) relative path from the given base path.
+ *
+ * A path which starts with a '/' is assumed to be absolute, all others are assumed to be
+ * relative. The default base path is the root of the simpleSAMPphp installation.
+ *
+ * @param $path The path we should resolve.
+ * @param $base The base path, where we should search for $path from. Default value is the root
+ * of the simpleSAMLphp installation.
+ * @return An absolute path referring to $path.
+ */
+ public static function resolvePath($path, $base = NULL) {
+ if($base === NULL) {
+ $config = SimpleSAML_Configuration::getInstance();
+ $base = $config->getBaseDir();
+ }
+
+ /* Remove trailing slashes from $base. */
+ while(substr($base, -1) === '/') {
+ $base = substr($base, 0, -1);
+ }
+
+ $ret = $base;
+
+ $path = explode('/', $path);
+ foreach($path as $d) {
+ if($d === '.') {
+ continue;
+ } elseif($d === '..') {
+ $ret = dirname($ret);
+ } else {
+ if(substr($ret, -1) !== '/') {
+ $ret .= '/';
+ }
+ $ret .= $d;
+ }
+ }
+
+ return $ret;
+ }
+
}
?>
\ No newline at end of file
--
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