MaharaAuthPlugin: Making sql queries more database friendly

Also setting the strict() calls to return true, and correcting some whitespace issues.

MaharaAuthPlugin.php

@@ -33,7 +33,7 @@ class MaharaAuthPlugin extends AuthPlugin {
 	/**
 	 * Check whether there exists a user account with the given name.
 	 * The name will be normalized to MediaWiki's requirements, so
-	 * you might need to munge it (for instance, for lowercase initial
+     * you might need to munge it (for instance, for lowercase initial
 	 * letters).
 	 *
 	 * @param $username String: username.
@@ -51,7 +51,7 @@ class MaharaAuthPlugin extends AuthPlugin {
         $this->dbname = $dbname;
         $this->host = $host;
         $this->prefix = $prefix;
-	$this->dbtype = $dbtype;
+	    $this->dbtype = $dbtype;
         $this->dbuser = $user;
         $this->dbpass = $password;
     }
@@ -59,7 +59,7 @@ class MaharaAuthPlugin extends AuthPlugin {
 	public function userExists( $username ) {
 	$username = strtolower($username);
         $db = $this->getDatabase();
-	$sql = "SELECT username FROM ".$this->prefix."usr where username = '".$username."'";
+	$sql = "SELECT username FROM ".$this->prefix."usr where LOWER(username) = '".$username."'";
         $res = $db->query($sql);
         $val = $db->fetchObject($res);
         $db->close();
@@ -82,7 +82,7 @@ class MaharaAuthPlugin extends AuthPlugin {
 	public function authenticate( $username, $password ) {
 	$username = strtolower($username);
         $db = $this->getDatabase();
-	$sql = "SELECT username, password, salt FROM ".$this->prefix."usr where username = '".$username."'";
+	$sql = "SELECT username, password, salt FROM ".$this->prefix."usr where LOWER(username) = '".$username."'";
         $res = $db->query($sql);
         $val = $db->fetchObject($res);
         $db->close();
@@ -136,8 +136,9 @@ class MaharaAuthPlugin extends AuthPlugin {
 	 * @param User $user
 	 */
 	public function updateUser( &$user ) {
+        
         $db = $this->getDatabase();
-	$sql = "SELECT * FROM ".$this->prefix."usr where username = '".$username."'";
+	    $sql = "SELECT * FROM ".$this->prefix."usr where LOWER(username) = LOWER('".$user->username."')";
         $res = $db->query($sql);
         $val = $db->fetchRow($res);
         $db->close();
@@ -234,7 +235,7 @@ class MaharaAuthPlugin extends AuthPlugin {
 	 * @return bool
 	 */
 	public function strict() {
-		return false;
+		return true;
 	}
 
 	/**
@@ -245,7 +246,7 @@ class MaharaAuthPlugin extends AuthPlugin {
 	 * @return bool
 	 */
 	public function strictUserAuth( $username ) {
-		return false;
+		return true;
 	}
 
 	/**
@@ -260,8 +261,9 @@ class MaharaAuthPlugin extends AuthPlugin {
 	 * @param $autocreate bool True if user is being autocreated on login
 	 */
 	public function initUser( &$user, $autocreate=false ) {
+        $username = strtolower($username);
         $db = $this->getDatabase();
-	$sql = "SELECT * FROM ".$this->prefix."usr where username = '".$username."'";
+	    $sql = "SELECT * FROM ".$this->prefix."usr where LOWER(username) = '".$username."'";
         $res = $db->query($sql);
         $val = $db->fetchRow($res);
         $db->close();
@@ -295,17 +297,9 @@ class MaharaAuthPlugin extends AuthPlugin {
 		switch ($this->dbtype) {
 			case 'mysql':
 				return new DatabaseMysql($this->host,$this->dbuser,$this->dbpass,$this->dbname);
-				break;
-			case 'mssql':
-				return new DatabaseMssql($this->host,$this->dbuser,$this->dbpass,$this->dbname);
-				break;
-			case 'oracle':
-				return new DatabaseOracle($this->host,$this->dbuser,$this->dbpass,$this->dbname);
-				break;
 			case 'postgres':
 			default:
 				return new DatabasePostgres($this->host,$this->dbuser,$this->dbpass,$this->dbname);
-				break;
 		}
 		return false;
 	}