public static void UseCors(this IMiddlewareSupport middleware, Action <CorsOptions> setOptions = null)
{
middleware.Use(async(context, next) =>
{
context.Response.SetCorsHeaders(CorsOptions.GetCorsOptions(setOptions));
await next(context);
});
}
public static CorsOptions GetCorsOptions(Action <CorsOptions> setOptions)
{
if (setOptions == null)
{
return(Default());
}
var corsOptions = new CorsOptions();
setOptions(corsOptions);
return(corsOptions);
}
public static void EnableCorsOptionsRequestHandling(this IRouteConfigurator router,
Action <CorsOptions> setOptions = null)
{
router.Options("cors_preflight", "*", context =>
{
return(Task.Run(() =>
context.Response.SetCorsHeaders(CorsOptions.GetCorsOptions(setOptions))));
});
router.Options("cors_preflight", "/", context =>
{
return(Task.Run(() =>
context.Response.SetCorsHeaders(CorsOptions.GetCorsOptions(setOptions))));
});
}
public static void SetCorsHeaders(this IResponse response, CorsOptions corsOptions)
{
if (corsOptions.AllowOrigin.IsSet)
{
response.SetHeader("Access-Control-Allow-Origin", corsOptions.AllowOrigin.Values);
}
if (corsOptions.AllowCredentials.IsSet)
{
response.SetHeader("Access-Control-Allow-Credentials", corsOptions.AllowCredentials.Values);
}
if (corsOptions.AllowMethods.IsSet)
{
response.SetHeader("Access-Control-Allow-Methods", corsOptions.AllowMethods.Values);
}
if (corsOptions.AllowHeaders.IsSet)
{
response.SetHeader("Access-Control-Allow-Headers", corsOptions.AllowHeaders.Values);
}
}
