public void process()
{
// we can't use a StreamReader for input, because it buffers up extra data on us inside it's
// "processed" view of the world, and we want the data raw after the headers
inputStream = new BufferedStream(socket.GetStream());
// we probably shouldn't be using a streamwriter for all output from handlers either
outputStream = new StreamWriter(new BufferedStream(socket.GetStream()));
try
{
parseRequest();
readHeaders();
if (http_method.Equals("GET"))
{
handleGETRequest();
}
else if (http_method.Equals("POST"))
{
handlePOSTRequest();
}
}
catch (Exception e)
{
MoaLog.Debug(String.Format("Exception: {0}", e.ToString()));
writeFailure();
}
}
public void readHeaders()
{
MoaLog.Debug(String.Format("readHeaders()"));
String line;
while ((line = streamReadLine(inputStream)) != null)
{
if (line.Equals(""))
{
MoaLog.Debug(String.Format("got headers"));
return;
}
int separator = line.IndexOf(':');
if (separator == -1)
{
throw new Exception("invalid http header line: " + line);
}
String name = line.Substring(0, separator);
int pos = separator + 1;
while ((pos < line.Length) && (line[pos] == ' '))
{
pos++; // strip any spaces
}
string value = line.Substring(pos, line.Length - pos);
MoaLog.Debug(String.Format("header: {0}:{1}", name, value));
http_req_headers[name] = value;
}
}
public override void handlePOSTRequest(HttpProcessor p, StreamReader inputData)
{
MoaLog.Debug(String.Format("POST request: {0}", p.http_url));
string data = inputData.ReadToEnd();
p.writeSuccess();
p.outputStream.WriteLine("<html><body><h1>test server</h1>");
p.outputStream.WriteLine("<a href=/test>return</a><p>");
p.outputStream.WriteLine("postbody: <pre>{0}</pre>", data);
}
public void parseRequest()
{
String request = streamReadLine(inputStream);
string[] tokens = request.Split(' ');
if (tokens.Length != 3)
{
throw new Exception("invalid http request line");
}
http_method = tokens[0].ToUpper();
http_url = tokens[1];
http_protocol_versionstring = tokens[2];
MoaLog.Debug(String.Format("starting: {0}", request));
}
public void handlePOSTRequest()
{
// this post data processing just reads everything into a memory stream.
// this is fine for smallish things, but for large stuff we should really
// hand an input stream to the request processor. However, the input stream
// we hand him needs to let him see the "end of the stream" at this content
// length, because otherwise he won't know when he's seen it all!
MoaLog.Debug(String.Format("get post data start"));
int content_len = 0;
MemoryStream ms = new MemoryStream();
if (this.http_req_headers.ContainsKey("Content-Length"))
{
content_len = Convert.ToInt32(this.http_req_headers["Content-Length"]);
if (content_len > MAX_POST_SIZE)
{
throw new Exception(
String.Format("POST Content-Length({0}) too big for this simple server",
content_len));
}
byte[] buf = new byte[BUF_SIZE];
int to_read = content_len;
while (to_read > 0)
{
MoaLog.Debug(String.Format("starting Read, to_read={0}", to_read));
int numread = this.inputStream.Read(buf, 0, Math.Min(BUF_SIZE, to_read));
MoaLog.Debug(String.Format("read finished, numread={0}", numread));
if (numread == 0)
{
if (to_read == 0)
{
break;
}
else
{
throw new Exception("client disconnected during post");
}
}
to_read -= numread;
ms.Write(buf, 0, numread);
}
ms.Seek(0, SeekOrigin.Begin);
}
MoaLog.Debug(String.Format("get post data end"));
srv.handlePOSTRequest(this, new StreamReader(ms));
}
public override void handleGETRequest(HttpProcessor p)
{
if (p.http_url.Equals("/Test.png"))
{
Stream fs = File.Open("../../Test.png", FileMode.Open);
p.writeSuccess("image/png");
fs.CopyTo(p.outputStream.BaseStream);
p.outputStream.BaseStream.Flush();
}
MoaLog.Debug(String.Format("request: {0}", p.http_url));
p.writeSuccess();
p.outputStream.WriteLine("<html><body><h1>test server</h1>");
p.outputStream.WriteLine("Current Time: " + DateTime.Now.ToString());
p.outputStream.WriteLine("url : {0}", p.http_url);
p.outputStream.WriteLine("<form method=post action=/form>");
p.outputStream.WriteLine("<input type=text name=foo value=foovalue>");
p.outputStream.WriteLine("<input type=submit name=bar value=barvalue>");
p.outputStream.WriteLine("</form>");
}
