Fixed basic-auth middleware

Signed-off-by: Vishal Rana <vr@labstack.com>

Author: vishr

middleware/basic_auth.go

@@ -13,6 +13,7 @@ type (
 		Skipper Skipper
 
 		// Validator is a function to validate BasicAuth credentials.
+		// Required.
 		Validator BasicAuthValidator
 	}
 
@@ -46,6 +47,9 @@ func BasicAuth(fn BasicAuthValidator) echo.MiddlewareFunc {
 // See `BasicAuth()`.
 func BasicAuthWithConfig(config BasicAuthConfig) echo.MiddlewareFunc {
 	// Defaults
+	if config.Validator == nil {
+		panic("basic-auth middleware requires validator function")
+	}
 	if config.Skipper == nil {
 		config.Skipper = DefaultBasicAuthConfig.Skipper
 	}

middleware/redirect.go

@@ -135,7 +135,7 @@ func WWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
 	}
 }
 
-// NonWWWRedirect redirects WWW request to non WWW.
+// NonWWWRedirect redirects WWW requests to non WWW.
 // For example, http://www.labstack.com will be redirect to http://labstack.com.
 //
 // Usage `Echo#Pre(NonWWWRedirect())`