From 0b50907763979db50e24304d60bb507e3c2df790 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Roland=20H=C3=A4der?= <roland@mxchange.org>
Date: Tue, 27 May 2008 21:22:00 +0000
Subject: [PATCH] Username filter begun with basic checks

---
 .../class_UserNameValidatorFilter.php         | 43 ++++++++++++++++++-
 .../main/request/class_HttpRequest.php        |  9 ++++
 2 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/inc/classes/main/filter/validator/class_UserNameValidatorFilter.php b/inc/classes/main/filter/validator/class_UserNameValidatorFilter.php
index efc3fec..9ec2251 100644
--- a/inc/classes/main/filter/validator/class_UserNameValidatorFilter.php
+++ b/inc/classes/main/filter/validator/class_UserNameValidatorFilter.php
@@ -66,8 +66,47 @@ class UserNameValidatorFilter extends BaseFrameworkSystem implements Filterable
 	 * @return	void
 	 */
 	public function execute (Requestable $requestInstance, Responseable $responseInstance) {
-		// Implement this!
-		$this->partialStub("Please implement this method.");
+		// Get username from request
+		$userName = $requestInstance->getRequestElement("username");
+
+		// Is the username set?
+		if (is_null($userName)) {
+			// Not found in form so stop the filtering process
+			$requestInstance->requestIsValid(false);
+
+			// Set a message for the response
+			$responseInstance->addFatalMessage('username_unset');
+
+			// Abort here
+			return false;
+		} elseif (empty($userName)) {
+			// Empty field!
+			$requestInstance->requestIsValid(false);
+
+			// Set a message for the response
+			$responseInstance->addFatalMessage('username_empty');
+
+			// Abort here
+			return false;
+		} elseif (!$this->ifUserNameIsValid($userName)) {
+			// Regular expression check failed!
+			$requestInstance->requestIsValid(false);
+
+			// Set a message for the response
+			$responseInstance->addFatalMessage('username_invalid');
+
+			// Abort here
+			return false;
+		} elseif (!$this->ifUserNameIsTaken($userName)) {
+			// Username is already taken
+			$requestInstance->requestIsValid(false);
+
+			// Set a message for the response
+			$responseInstance->addFatalMessage('username_taken');
+
+			// Abort here
+			return false;
+		}
 	}
 }
 
diff --git a/inc/classes/main/request/class_HttpRequest.php b/inc/classes/main/request/class_HttpRequest.php
index 6826d76..133f08a 100644
--- a/inc/classes/main/request/class_HttpRequest.php
+++ b/inc/classes/main/request/class_HttpRequest.php
@@ -145,6 +145,15 @@ class HttpRequest extends BaseFrameworkSystem implements Requestable {
 		// Return the value
 		return $headerValue;
 	}
+
+	/**
+	 * Getter for request method. This getter might be useful for security filters
+	 *
+	 * @return	$requestMethod	Used request method
+	 */
+	public final function getRequestMethod () {
+		return $_SERVER['REQUEST_METHOD'];
+	}
 }
 
 // [EOF]
-- 
2.39.5