Utilities: Add generic post redirect function.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1546 44740490-163a-0410-bde0-09ae8108e29a

Utilities: Add generic post redirect function.
556b70f1 · Olav Morken · d5395774 · 556b70f1 · 556b70f1
Commit 556b70f1 authored 15 years ago by Olav Morken
--- a/lib/SimpleSAML/Utilities.php
+++ b/lib/SimpleSAML/Utilities.php
@@ -1742,6 +1742,28 @@ class SimpleSAML_Utilities {
 		}
 	}

+
+	/**
+	 * Do a POST redirect to a page.
+	 *
+	 * This function never returns.
+	 *
+	 * @param string $destination  The destination URL.
+	 * @param array $post  An array of name-value pairs which will be posted.
+	 */
+	public static function postRedirect($destination, $post) {
+		assert('is_string($destination)');
+		assert('is_array($post)');
+
+		$config = SimpleSAML_Configuration::getInstance();
+
+		$p = new SimpleSAML_XHTML_Template($config, 'post.php');
+		$p->data['destination'] = $destination;
+		$p->data['post'] = $post;
+		$p->show();
+		exit(0);
+	}
+
 }

 ?>
\ No newline at end of file
--- a/templates/post.php
+++ b/templates/post.php
@@ -3,7 +3,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 <head>
 	<meta http-equiv="content-type" content="text/html; charset=utf-8" />
-	<title>SAML 2.0 POST</title>
+	<title>POST data</title>
 </head>
 <body onload="document.forms[0].submit()">

@@ -12,11 +12,53 @@
 	</noscript> 
 	
 	<form method="post" action="<?php echo htmlspecialchars($this->data['destination']); ?>">
-		<input type="hidden" name="SAMLResponse" value="<?php echo htmlspecialchars($this->data['response']); ?>" />
-		<input type="hidden" name="<?php echo htmlspecialchars($this->data['RelayStateName']); ?>" value="<?php echo htmlspecialchars($this->data['RelayState']); ?>" />
-		
+<?php
+if (array_key_exists('post', $this->data)) {
+	$post = $this->data['post'];
+} else {
+	/* For backwards compatibility. */
+	assert('array_key_exists("response", $this->data)');
+	assert('array_key_exists("RelayStateName", $this->data)');
+	assert('array_key_exists("RelayState", $this->data)');
+
+	$post = array(
+		'SAMLResponse' => $this->data['response'],
+		$this->data['RelayStateName'] => $this->data['RelayState'],
+	);
+}
+
+/**
+ * Write out one or more INPUT elements for the given name-value pair.
+ *
+ * If the value is a string, this function will write a single INPUT element.
+ * If the value is an array, it will write multiple INPUT elements to
+ * recreate the array.
+ *
+ * @param string $name  The name of the element.
+ * @param string|array $value  The value of the element.
+ */
+function printItem($name, $value) {
+	assert('is_string($name)');
+	assert('is_string($value) || is_array($value)');
+
+	if (is_string($value)) {
+		echo '<input type="hidden" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" />';
+		return;
+	}
+
+	/* This is an array... */
+	foreach ($value as $index => $item) {
+		printItem($name . '[' . var_export($index, TRUE) . ']', $item);
+	}
+}
+
+foreach ($post as $name => $value) {
+	printItem($name, $value);
+}
+?>
+
 		<noscript>
-			<input type="submit" value="Submit the response to the service" />
+			<input type="submit" value="Submit" />
 		</noscript>
 	</form>