public async void nonEmptyRefererIsValid()
{
var rule = new RefererRule()
{
EmptyRefererIsInvalid = true,
ValidHost = "booksweb.org"
};
var httpContext = new DefaultHttpContext();
//by default context Stream (where we write using Response or read using request)
// is set to Stream.Empty
// this stream fails silently for all read write.
// do nothing dont complain.
//if we need to capture the response.writeline
//we must supply for our stream to HttpContext
Stream mem = new MemoryStream();
//TODO: Fix the Memory Stram to httpContext
httpContext.Response.Body = mem; //when some one writes to body, write to memeory stream
//provide a delegate which immediately finishes
//without doing anything
RequestDelegate next = async context =>
{
var status = context.Request.Headers["invalid_referer"].FirstOrDefault();
await context.Response.WriteAsync($"invalid_refer : {status}");
};
var middleware = new InvalidRefererIdentifier(next, rule);
httpContext.Request.Headers["Referer"] = "http://booksweb.org/authors";
await middleware.Invoke(httpContext);
//var invalidRefererHeader = httpContext.Request.Headers["invalid_referer"].FirstOrDefault();
//Assert.Equal(false.ToString(), invalidRefererHeader);
//Step1: we need to read the memory stream from the begining So let us rewind it beging
mem.Seek(0, SeekOrigin.Begin);
var reader = new StreamReader(mem);
var text = reader.ReadToEnd();
Assert.Equal("invalid_refer : False", text);
}
public async void emptyRefererIsInvalid()
{
var rule = new RefererRule()
{
EmptyRefererIsInvalid = true
};
//provide a delegate which immediately finishes
//without doing anything
RequestDelegate next = context => Task.CompletedTask;
var middleware = new InvalidRefererIdentifier(next, rule);
var httpContext = new DefaultHttpContext();
await middleware.Invoke(httpContext);
var invalidRefererHeader = httpContext.Request.Headers["invalid_referer"].FirstOrDefault();
Assert.Equal(true.ToString(), invalidRefererHeader);
}