// ProxyHTTP: proxy a HTTP request
private void ProxyHTTP(Socket client)
{
NetworkStream netStream = new NetworkStream(client);
HandyNetReader reader = new HandyNetReader(netStream);
string line = null;
int reqNo;
int contentLength = 0;
string contentType = "";
Match match;
string uri;
string meth;
Dictionary<string, string> headers = new Dictionary<string, string>();
lock (this)
{
capsReqCount++; reqNo = capsReqCount;
}
byte[] byteLine = reader.ReadLine();
if(byteLine==null)
{
//This dirty hack is part of the LIBOMV-457 workaround
//The connecting libomv client being proxied can manage to trigger a null from the ReadLine()
//The happens just after the seed request and is not seen again. TODO find this bug in the library.
netStream.Close(); client.Close();
return;
}
if (byteLine != null) line = Encoding.UTF8.GetString(byteLine).Replace("\r", "");
if (line == null)
throw new Exception("EOF in client HTTP header");
match = new Regex(@"^(\S+)\s+(\S+)\s+(HTTP/\d\.\d)$").Match(line);
if (!match.Success)
{
OpenMetaverse.Logger.Log("[" + reqNo + "] Bad request!", Helpers.LogLevel.Warning);
byte[] wr = Encoding.ASCII.GetBytes("HTTP/1.0 400 Bad Request\r\nContent-Length: 0\r\n\r\n");
netStream.Write(wr, 0, wr.Length);
netStream.Close(); client.Close();
return;
}
meth = match.Groups[1].Captures[0].ToString();
uri = match.Groups[2].Captures[0].ToString();
OpenMetaverse.Logger.Log(String.Format("[{0}] {1}:{2}", reqNo, meth, uri), Helpers.LogLevel.Debug);
// read HTTP header
do
{
// read one line of the header
line = Encoding.UTF8.GetString(reader.ReadLine()).Replace("\r", "");
// check for premature EOF
if (line == null)
throw new Exception("EOF in client HTTP header");
if (line == "") break;
match = new Regex(@"^([^:]+):\s*(.*)$").Match(line);
if (!match.Success)
{
OpenMetaverse.Logger.Log(String.Format("[{0}] Bad Header: '{1}'", reqNo, line), Helpers.LogLevel.Warning);
byte[] wr = Encoding.ASCII.GetBytes("HTTP/1.0 400 Bad Request\r\nContent-Length: 0\r\n\r\n");
netStream.Write(wr, 0, wr.Length);
netStream.Close(); client.Close();
return;
}
string key = match.Groups[1].Captures[0].ToString();
string val = match.Groups[2].Captures[0].ToString();
headers[key.ToLower()] = val;
} while (line != "");
if (headers.ContainsKey("content-length"))
{
contentLength = Convert.ToInt32(headers["content-length"]);
}
if (headers.ContainsKey("content-type")) {
contentType = headers["content-type"];
}
// read the HTTP body into a buffer
byte[] content = new byte[contentLength];
reader.Read(content, 0, contentLength);
if (contentLength < 8192)
OpenMetaverse.Logger.Log(String.Format("[{0}] request length={1}:\n{2}", reqNo, contentLength, Utils.BytesToString(content)), Helpers.LogLevel.Debug);
if (uri == "/")
{
if (contentType == "application/xml+llsd" || contentType == "application/xml") {
ProxyLoginSD(netStream, content);
} else {
ProxyLogin(netStream, content);
}
}
else if (new Regex(@"^/https?://.*$").Match(uri).Success)
{
ProxyCaps(netStream, meth, uri.Substring(1), headers, content, reqNo);
}
else if (new Regex(@"^/https?:/.*$").Match(uri).Success)
{
//This is a libomv client and the proxy CAPS URI has been munged by the C# URI class
//Part of the LIBOMV-457 work around, TODO make this much nicer.
uri=uri.Replace(":/","://");
ProxyCaps(netStream, meth, uri.Substring(1), headers, content, reqNo);
}
else
{
OpenMetaverse.Logger.Log("404 not found: " + uri, Helpers.LogLevel.Error);
byte[] wr = Encoding.ASCII.GetBytes("HTTP/1.0 404 Not Found\r\nContent-Length: 0\r\n\r\n");
netStream.Write(wr, 0, wr.Length);
netStream.Close(); client.Close();
return;
}
netStream.Close();
client.Close();
}
// ProxyHTTP: proxy a HTTP request
private void ProxyHTTP(Socket client)
{
NetworkStream netStream = new NetworkStream(client);
HandyNetReader reader = new HandyNetReader(netStream);
string line = null;
int reqNo;
int contentLength = 0;
string contentType = "";
Match match;
string uri;
string meth;
Dictionary<string, string> headers = new Dictionary<string, string>();
lock (this)
{
capsReqCount++; reqNo = capsReqCount;
}
byte[] byteLine = reader.ReadLine();
if (byteLine != null) line = Encoding.UTF8.GetString(byteLine).Replace("\r", "");
if (line == null)
throw new Exception("EOF in client HTTP header");
match = new Regex(@"^(\S+)\s+(\S+)\s+(HTTP/\d\.\d)$").Match(line);
if (!match.Success)
{
Console.WriteLine("[" + reqNo + "] Bad request!");
byte[] wr = Encoding.ASCII.GetBytes("HTTP/1.0 400 Bad Request\r\nContent-Length: 0\r\n\r\n");
netStream.Write(wr, 0, wr.Length);
netStream.Close(); client.Close();
return;
}
meth = match.Groups[1].Captures[0].ToString();
uri = match.Groups[2].Captures[0].ToString();
#if DEBUG_CAPS
Console.WriteLine("[" + reqNo + "] " + meth + ": " + uri); // FIXME - for debugging only
#endif
// read HTTP header
do
{
// read one line of the header
line = Encoding.UTF8.GetString(reader.ReadLine()).Replace("\r", "");
// check for premature EOF
if (line == null)
throw new Exception("EOF in client HTTP header");
if (line == "") break;
match = new Regex(@"^([^:]+):\s*(.*)$").Match(line);
if (!match.Success)
{
Console.WriteLine("[" + reqNo + "] Bad header: '" + line + "'");
byte[] wr = Encoding.ASCII.GetBytes("HTTP/1.0 400 Bad Request\r\nContent-Length: 0\r\n\r\n");
netStream.Write(wr, 0, wr.Length);
netStream.Close(); client.Close();
return;
}
string key = match.Groups[1].Captures[0].ToString();
string val = match.Groups[2].Captures[0].ToString();
headers[key.ToLower()] = val;
} while (line != "");
if (headers.ContainsKey("content-length"))
{
contentLength = Convert.ToInt32(headers["content-length"]);
}
if (headers.ContainsKey("content-type")) {
contentType = headers["content-type"];
}
// read the HTTP body into a buffer
byte[] content = new byte[contentLength];
reader.Read(content, 0, contentLength);
#if DEBUG_CAPS
if (contentLength < 8192) Console.WriteLine("[" + reqNo + "] request length = " + contentLength + ":\n" + Utils.BytesToString(content) + "\n-------------");
#endif
if (uri == "/")
{
if (contentType == "application/xml+llsd" || contentType == "application/xml") {
ProxyLoginSD(netStream, content);
} else {
ProxyLogin(netStream, content);
}
}
else if (new Regex(@"^/https?://.*$").Match(uri).Success)
{
ProxyCaps(netStream, meth, uri.Substring(1), headers, content, reqNo);
}
else
{
Console.WriteLine("404 not found: " + uri);
byte[] wr = Encoding.ASCII.GetBytes("HTTP/1.0 404 Not Found\r\nContent-Length: 0\r\n\r\n");
netStream.Write(wr, 0, wr.Length);
netStream.Close(); client.Close();
return;
}
netStream.Close();
client.Close();
}
