private static void ShowFile(string filename,ref HTTPResponseStruct response)
{
if (File.Exists(Path.Combine(Resources.ApplicationDirectory, filename)))
{
List<byte> responseData = new List<byte>();
using (FileStream fs = new FileStream(Path.Combine(Resources.ApplicationDirectory, filename), FileMode.Open, FileAccess.Read))
{
byte[] buffer = new byte[255];
int bytesRead = fs.Read(buffer, 0, 255);
while (bytesRead > 0)
{
byte[] tempBuffer = new byte[bytesRead];
Array.Copy(buffer, tempBuffer, bytesRead);
responseData.AddRange(tempBuffer);
bytesRead = fs.Read(buffer, 0, 255);
}
}
response.BodyData = responseData.ToArray();
}
else
{
response.status = 404;
}
}
public override void OnResponse(ref HTTPRequestStruct request, ref HTTPResponseStruct response)
{
if (request.Method=="GET")
{
if (Authenticated(ref request,ref response))
{
if (request.URL.Equals("/favicon.ico", StringComparison.InvariantCultureIgnoreCase))
{
response.Headers.Add("Content-Type", "image/x-icon");
ShowFile("favicon.ico", ref response);
}
else if (request.URL.Equals("/style.css", StringComparison.InvariantCultureIgnoreCase))
{
response.Headers.Add("Content-Type", "text/css; charset=utf-8");
ShowFile("style.css", ref response);
}
else if (request.URL.Equals("/mobile-style.css", StringComparison.InvariantCultureIgnoreCase))
{
response.Headers.Add("Content-Type", "text/css; charset=utf-8");
ShowFile("mobile-style.css", ref response);
}
else if (request.URL.Equals("/apple-touch-icon.png", StringComparison.InvariantCultureIgnoreCase))
{
response.Headers.Add("Content-Type", "image/png");
ShowFile("apple-touch-icon.png", ref response);
}
else if (request.URL.Equals("/"))
{
if (!string.IsNullOrEmpty(request.QueryString) && request.QueryString.StartsWith("?taskid=", StringComparison.InvariantCultureIgnoreCase))
{
Guid id = new Guid(request.QueryString.ToLowerInvariant().Replace("?taskid=", string.Empty));
RunTask(id, ref response);
}
else
{
ShowAllTasks(ref response);
}
}
}
}
}
public abstract void OnResponse(ref HTTPRequestStruct request, ref HTTPResponseStruct response);
private void ShowAllTasks(ref HTTPResponseStruct response)
{
response.Headers.Add("Content-Type", "text/html; charset=utf-8");
StringBuilder sb = new StringBuilder();
sb.Append(
@"<!DOCTYPE html PUBLIC ""-//W3C//DTD XHTML 1.0 Transitional//EN"" ""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"">
<html xmlns=""http://www.w3.org/1999/xhtml"" lang=""en"" xml:lang=""en"">
<head>
<meta http-equiv=""Content-Type"" content=""text/html;charset=utf-8"" />
<title>Automaton</title>
<link href=""/style.css"" type=""text/css"" rel=""stylesheet"" />
<link media=""only screen and (max-device-width: 480px)"" href=""/mobile-style.css"" type=""text/css"" rel=""stylesheet"" />
<meta name=""viewport"" content=""width = 320"" />
</head>
<body>
<h1>Automaton Server</h1>
");
bool alt = false;
foreach (Agent agent in AgentManager.Current.GetAgents())
{
sb.Append(@"<div class=""agent"">");
sb.Append("<p>" + agent.Name + "</p>");
sb.Append(@"</div>");
foreach (Task task in agent.Tasks)
{
sb.Append(@"<div class=""task" + (alt ? " alt" : string.Empty) + @""">");
sb.Append(@"<a href=""/?taskid=" + task.Id + @""">" + task.Name + @"</a>");
sb.Append("<p>" + task.Description + "</p>");
sb.Append(@"</div>");
alt = !alt;
}
}
sb.Append(
@"</body>
</html>");
response.status = 200;
response.BodyData = Encoding.UTF8.GetBytes(sb.ToString());
response.BodySize = response.BodyData.Length;
}
private void RunTask(Guid id, ref HTTPResponseStruct response)
{
AgentManager.Current.RunTask(id);
response.status = 302;
response.Headers.Add("Location","/");
response.Headers.Add("Content-Type", "text/html; charset=utf-8");
StringBuilder sb = new StringBuilder();
sb.Append(
@"<html>
<head>
<title>Moved</title>
</head>
<body>
<h1>Moved</h1>
<p>This page has moved to <a href=""/"">here</a>.</p>
</body>
</html>");
response.BodyData = Encoding.UTF8.GetBytes(sb.ToString());
response.BodySize = response.BodyData.Length;
}
private bool Authenticated(ref HTTPRequestStruct request, ref HTTPResponseStruct response)
{
bool stale;
if (!DigestAuthenticationHelper.CheckAuthentication(request,out stale))
{
response.status = 401;
response.Headers.Add("WWW-Authenticate", DigestAuthenticationHelper.GenerateAuthenticateChallenge(request,false));
return false;
}
else if (stale)//auth passed, but the nonce is stale
{
response.status = 401;
response.Headers.Add("WWW-Authenticate", DigestAuthenticationHelper.GenerateAuthenticateChallenge(request, true));
return false;
}
else
{
return true;
}
}
