Move SimpleSAML_Utilities::getServerHosst(), getServerHTTPS() and getServerPort() to SimpleSAML\Utils\HTTP.

1 files changed, 90 insertions, 0 deletions

diff --git a/lib/SimpleSAML/Utils/HTTP.php b/lib/SimpleSAML/Utils/HTTP.php
new file mode 100644
index 0000000..01a6209
--- /dev/null
+++ b/lib/SimpleSAML/Utils/HTTP.php
@@ -0,0 +1,90 @@
+<?php
+namespace SimpleSAML\Utils;
+
+
+/**
+ * HTTP-related utility methods.
+ *
+ * @package SimpleSAMLphp
+ */
+class HTTP
+{
+
+    /**
+     * Retrieve Host value from $_SERVER environment variables.
+     *
+     * @return string The current host name, including the port if needed. It will use localhost when unable to
+     *     determine the current host.
+     *
+     * @author Olav Morken, UNINETT AS <olav.morken@uninett.no>
+     */
+    private static function getServerHost()
+    {
+        if (array_key_exists('HTTP_HOST', $_SERVER)) {
+            $current = $_SERVER['HTTP_HOST'];
+        } elseif (array_key_exists('SERVER_NAME', $_SERVER)) {
+            $current = $_SERVER['SERVER_NAME'];
+        } else {
+            // almost certainly not what you want, but...
+            $current = 'localhost';
+        }
+
+        if (strstr($current, ":")) {
+            $decomposed = explode(":", $current);
+            $port = array_pop($decomposed);
+            if (!is_numeric($port)) {
+                array_push($decomposed, $port);
+            }
+            $current = implode($decomposed, ":");
+        }
+        return $current;
+    }
+
+
+    /**
+     * Retrieve HTTPS status from $_SERVER environment variables.
+     *
+     * @return boolean True if the request was performed through HTTPS, false otherwise.
+     *
+     * @author Olav Morken, UNINETT AS <olav.morken@uninett.no>
+     */
+    private static function getServerHTTPS()
+    {
+        if (!array_key_exists('HTTPS', $_SERVER)) {
+            // not an https-request
+            return false;
+        }
+
+        if ($_SERVER['HTTPS'] === 'off') {
+            // IIS with HTTPS off
+            return false;
+        }
+
+        // otherwise, HTTPS will be a non-empty string
+        return $_SERVER['HTTPS'] !== '';
+    }
+
+
+    /**
+     * Retrieve the port number from $_SERVER environment variables.
+     *
+     * @return string The port number prepended by a colon, if it is different than the default port for the protocol
+     *     (80 for HTTP, 443 for HTTPS), or an empty string otherwise.
+     *
+     * @author Olav Morken, UNINETT AS <olav.morken@uninett.no>
+     */
+    private static function getServerPort()
+    {
+        $port = (isset($_SERVER['SERVER_PORT'])) ? $_SERVER['SERVER_PORT'] : '80';
+        if (self::getServerHTTPS()) {
+            if ($port !== '443') {
+                $port = ':'.$port;
+            }
+        } else {
+            if ($port !== '80') {
+                $port = ':'.$port;
+            }
+        }
+        return $port;
+    }
+}
\ No newline at end of file