( FEZ Domino with ‘W5100’ )
Hello , I´m using the code ‘W5100_HttpServer’ I found in ‘Tinyclr Wiki’, but I´m getting an error in the RunServer procedure [ listener.start() ] -> An unhandled exception of type ‘System.NotSupportedException ocurred in System.dll’ .
The hardware is well configured.
Any body knows the cause for this problem ?
Thanks
Are you using the project as is? On what board are you trying it?
I´m using a Fez Domino with an Wiznet ethernet shield; the hardware is well initialized because I can run othrer applications that use comunications at socket level; I do not understand why the ‘listener.start’ method fails with the System.dll error,
Thanks
More info … in the output windows:
The thread ‘’ (0x2) has exited with code 0 (0x0).
Network settings:
IP Address: 192.168.0.200
Subnet Mask: 255.255.255.0
Default Getway: 192.168.0.1
DNS Server: 192.168.0.1
#### Exception System.NotSupportedException - CLR_E_NOT_SUPPORTED (5) ####
#### Message:
#### System.Net.Sockets.Socket::.ctor [IP: 001f] ####
#### System.Net.HttpListener::Start [IP: 0020] ####
#### HttpServerSample.MyHttpServer::RunServer [IP: 000b] ####
#### HttpServerSample.MyHttpServer+PrefixKeeper::RunServerDelegate [IP: 0008] ####
A first chance exception of type ‘System.NotSupportedException’ occurred in System.dll
An unhandled exception of type ‘System.NotSupportedException’ occurred in System.dll
I think you have the wrong assemblies included in your project. You are using NETMF standard ones those work on large devices) instead of using GHI’s (made for USBizi) http://wiki.tinyclr.com/index.php?title=Networking#USBizi_Network_Support
Yes, I also think that is the problem; the question is wich are the ones I need; I do not find any reference to the httplistener ( System.Htp.dll ) in the link you sent me.
Here is the code: (in bold the place where the error happens) … thanks for your help …
//
using Microsoft.SPOT;
using Microsoft.SPOT.IO;
using Microsoft.SPOT.Hardware;
using System;
using System.Resources;
using System.Reflection;
using System.Text;
using System.Threading;
using System.IO;
using System.Net;
using GHIElectronics.NETMF.IO;
using GHIElectronics.NETMF.Net;
using GHIElectronics.NETMF.Net.NetworkInformation;
using GHIElectronics.NETMF.FEZ;
namespace HttpServerSample
{
public static class MyHttpServer
{
const int BUFFER_SIZE = 1024;
static PersistentStorage ps;
const byte hostPort = 80;
public static void Main()
{
ps = new PersistentStorage("SD");
ps.MountFileSystem();
byte[] ip = { 192, 168, 0, 200 };
byte[] subnet = { 255, 255, 255, 0 };
byte[] gateway = { 192, 168, 0, 1 };
byte[] mac = { 43, 185, 44, 2, 206, 120 };
WIZnet_W5100.Enable(SPI.SPI_module.SPI1, (Cpu.Pin)FEZ_Pin.Digital.Di10, (Cpu.Pin)FEZ_Pin.Digital.Di9, true); // WIZnet interface on FEZ Connect
NetworkInterface.EnableStaticIP(ip, subnet, gateway, mac);
NetworkInterface.EnableStaticDns(new byte[] { 192, 168,0, 1 });
//Dhcp.EnableDhcp(mac);
Debug.Print("Network settings:");
Debug.Print("IP Address: " + new IPAddress(NetworkInterface.IPAddress).ToString());
Debug.Print("Subnet Mask: " + new IPAddress(NetworkInterface.SubnetMask).ToString());
Debug.Print("Default Getway: " + new IPAddress(NetworkInterface.GatewayAddress).ToString());
Debug.Print("DNS Server: " + new IPAddress(NetworkInterface.DnsServer).ToString());
// Starts http server in another thread.
Thread httpThread = new Thread((new PrefixKeeper("http")).RunServerDelegate);
httpThread.Start();
try
{
RunServer("http");
}
catch (Exception e)
{
Debug.Print(e.Message);
}
}
/// <summary>
/// All this class does is keeps the prefix and provides
/// RunServerDelegate to run in separate thread.
/// RunServerDelegate calls HttpServerApp.RunServer with saved prefix.
/// </summary>
class PrefixKeeper
{
/// <summary>
/// Keeps the prefix to start server.
/// </summary>
private string m_prefix;
/// <summary>
/// Saves the prefix
/// </summary>
/// <param name="prefix">Prefix</param>
internal PrefixKeeper(string prefix)
{
m_prefix = prefix;
}
/// <summary>
/// Delegate to run server in separate thread.
/// </summary>
internal void RunServerDelegate()
{
MyHttpServer.RunServer(m_prefix);
}
}
internal static void RunServer(string prefix)
{
HttpListener listener = new HttpListener(prefix, -1);
[b]listener.Start();
[/b]
while (true)
{
HttpListenerResponse response = null;
HttpListenerContext context = null;
try
{
context = listener.GetContext();
response = context.Response;
HttpListenerRequest request = context.Request;
switch (request.HttpMethod.ToUpper())
{
case "GET": ProcessClientGetRequest(context); break;
case "POST": ProcessClientPostRequest(context); break;
}
if (response != null)
{
response.Close();
}
if (context != null)
{
context.Close();
context = null;
}
}
catch
{
if (context != null)
{
context.Close();
context = null;
}
if (response != null)
{
response.Close();
}
}
}
}
private static void ProcessClientPostRequest(HttpListenerContext context)
{
// Retrieves request and response.
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
// Allocates buffer for reading of message body
byte[] postdata = new byte[BUFFER_SIZE];
// Now reads the posted data. The content length should be supplied.
// It is error not to have content length with post request.
if (request.ContentLength64 > 0)
{
Debug.Print("Request Headers:");
Debug.Print(request.Headers.ToString());
VolumeInfo []vis = VolumeInfo.GetVolumes();
bool fHasVolume = false;
if (vis.Length > 0)
{
for (int i = 0; i < vis.Length; i++)
{
if (vis[i].Name.ToLower() == "sd")
{
if (!vis[i].IsFormatted)
{
vis[i].Format(0);
}
fHasVolume = true;
break;
}
}
}
FileStream fs = null;
if (fHasVolume)
{
try
{
fs = new FileStream("\\SD\\Upload.txt", FileMode.Create);
}
catch
{
fHasVolume = false;
}
}
long totalBytesReceived = 0;
long contLen = request.ContentLength64;
while (totalBytesReceived < contLen)
{
int bytesToRead = (int)(contLen - totalBytesReceived);
// Limit to buffer size
bytesToRead = bytesToRead < BUFFER_SIZE ? bytesToRead : BUFFER_SIZE;
int dataRead = request.InputStream.Read(postdata, 0, bytesToRead);
if (dataRead == 0)
{
// Definitely some error. Means file incomplete.
break;
}
if (fHasVolume)
{
fs.Write(postdata, 0, dataRead);
}
totalBytesReceived += dataRead;
};
if (fHasVolume)
{
fs.Close();
}
// Sends response:
string strResp = "<HTML><BODY>.Net Micro Framework Example HTTP Server<p>";
// Print requested verb, URL and version.. Adds information from the request.
strResp += "HTTP Method: " + request.HttpMethod + "<br> Requested URL: \"" + request.RawUrl +
"<br> HTTP Version: " + request.ProtocolVersion + "\"<p>";
strResp += "Amount of data received in message body: " + totalBytesReceived + "<br>";
strResp += "Data of message body is discarded (if there is no filesystem). Please review HTTP Server sample code to add processing of data";
strResp += "</BODY></HTML>";
response.StatusCode = (int) HttpStatusCode.OK;
//response.RedirectLocation = "http://localhost/WINFS/DpwsDevice/";
byte[] messageBody = Encoding.UTF8.GetBytes(strResp);
response.ContentType = "text/html";
response.OutputStream.Write(messageBody, 0, messageBody.Length);
}
else // Content length is missing, send error back
{
// Sends response:
string strResp = "<HTML><BODY>Content length is missing in Post request</BODY></HTML>";
byte[] messageBody = Encoding.UTF8.GetBytes(strResp);
response.ContentType = "text/html";
response.OutputStream.Write(messageBody, 0, messageBody.Length);
}
}
static private string GetPathFromURL(string URL)
{
char[] szFilePath = URL.ToCharArray();
for( int i = 0, length = szFilePath.Length; i < length; i++ )
{
if (szFilePath[i] == '/')
{
szFilePath[i] = '\\';
}
}
// Return updated string with \SD in front
return new string( szFilePath );
}
private static Encoding encoder = Encoding.UTF8;
private static char[] fwdSlashDelim = { '\\' };
private static void ProcessClientGetRequest( HttpListenerContext context )
{
Debug.Print(Debug.GC(true).ToString());
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
string strFilePath = GetPathFromURL(request.RawUrl);
// There is one particular URL that we process differently
if (strFilePath == "\\PasswordProtected")
{
ProcessPasswordProtectedArea(request, response);
return;
}
response.StatusCode = (int)HttpStatusCode.OK;
// Find if file is present. If file exists - sends its context
if (File.Exists(strFilePath))
{
SendFileOverHTTP(response, strFilePath);
}
else // The path is directory or not present.
{
// Start HTML document
string strResp = "<HTML><BODY>.Net Micro Framework Example HTTP Server<p>";
// Print requested verb, URL and version.. Adds information from the request.
strResp += "HTTP Method: " + request.HttpMethod + "<br> Requested URL: \"" + request.RawUrl +
"<br> HTTP Version: " + request.ProtocolVersion + "\"<p>";
// Information about the path that we access.
strResp += "File to access " + strFilePath + "<p>";
// If directory present - iterate over it and
if (Directory.Exists(strFilePath))
{
strResp += FillDirectoryContext(strFilePath, request);
}
else // Neither File or directory exists
{
// Prints that directory is not found.
strResp += "Directory: \"" + strFilePath + "\" Does not exists";
}
// Closes HTML
strResp += "</BODY></HTML>";
// Sends it.
byte[] messageBody = encoder.GetBytes(strResp);
response.ContentType = "text/html";
response.OutputStream.Write(messageBody, 0, messageBody.Length);
}
Debug.Print(Debug.GC(true).ToString());
}
private static void ProcessPasswordProtectedArea(HttpListenerRequest request, HttpListenerResponse response)
{
string strResp = "<HTML><BODY>.Net MF Example HTTP Server. Secure Area<p>";
if (request.Credentials != null)
{ // Parse and Decode string.
Debug.Print("User Name : " + request.Credentials.UserName);
Debug.Print("Password : " + request.Credentials.Password);
if (request.Credentials.UserName != "Igor" || request.Credentials.Password != "MyPassword")
{
strResp += "Authentication failed. <br>You supplied <p>User Name: " + request.Credentials.UserName +
"<br>Password: " + request.Credentials.Password;
strResp += "<p>Please look at root page for required credentials";
response.StatusCode = (int)HttpStatusCode.Unauthorized;
response.Headers.Add("WWW-Authenticate: Basic realm=\".Net MF Example of Secure Area\"");
}
else
{
response.StatusCode = (int)HttpStatusCode.OK;
strResp += "Authentication Succeeded.";
}
}
else
{
strResp += "<p> Authentication Required<p> Please look at root page for required credentials";
response.StatusCode = (int)HttpStatusCode.Unauthorized;
response.Headers.Add("WWW-Authenticate: Basic realm=\".Net MF Example of Secure Area\"");
}
// Closes HTML
strResp += "</BODY></HTML>";
byte[] messageBody = encoder.GetBytes(strResp);
response.ContentType = "text/html";
response.OutputStream.Write(messageBody, 0, messageBody.Length);
}
static string FillDirectoryContext(string strFilePath, HttpListenerRequest request )
{
string strRet = "Context of directory: \"" + strFilePath + "\"<p>";
try
{
string[] dirs = Directory.GetDirectories(strFilePath);
foreach (string strDirPath in dirs)
{
// dirs keep full path. We need only relative path in directory.
// So we need to split by '\' and take the last directory,
string[] splitDir = strDirPath.Split(fwdSlashDelim);
string strDir = splitDir[splitDir.Length - 1];
string strUrl = request.RawUrl;
if (strUrl[strUrl.Length - 1] != '/')
{
strUrl += '/';
}
strRet += "Dir - " +
"<A HREF=\"" + strUrl + strDir + "\">" + strDir + "</A><br>";
}
string[] files = Directory.GetFiles(strFilePath);
foreach (string locFilePath in files)
{
string[] splitFile = locFilePath.Split(fwdSlashDelim);
string strFile = splitFile[splitFile.Length - 1];
string strUrl = request.RawUrl;
if (strUrl[strUrl.Length - 1] != '/')
{
strUrl += '/';
}
strRet += "File - " +
"<A HREF=\"" + strUrl + strFile + "\">" + strFile + "</A><br>";
}
}
catch
{
}
// Following line adds file post capabilities
strRet += "<p>Below is example of sending file data to HTTP server";
strRet += HttpServerSample.Resource1.GetString(HttpServerSample.Resource1.StringResources.PostForm);
// Next line shows link protected by password.
strRet += "<br>Below is example of protected link.";
strRet += "<br><A HREF=\"/PasswordProtected\">Password Protected Secure Area</A>";
strRet += "<br>Use following credentials to access it:<br> User Name: Igor<br> Password: MyPassword<br>";
return strRet;
}
static void SendFileOverHTTP(HttpListenerResponse response, string strFilePath )
{
if (strFilePath.IndexOf(".cs") != -1 ||
strFilePath.IndexOf(".txt") != -1 ||
strFilePath.IndexOf(".csproj") != -1
)
{
response.ContentType = "text/plain";
}
if (strFilePath.IndexOf(".jpg") != -1 ||
strFilePath.IndexOf(".bmp") != -1 ||
strFilePath.IndexOf(".jpeg") != -1
)
{
response.ContentType = "image";
}
if (strFilePath.IndexOf(".htm") != -1 ||
strFilePath.IndexOf(".html") != -1
)
{
response.ContentType = "text/html";
}
if (strFilePath.IndexOf(".mp3") != -1 ||
strFilePath.IndexOf(".MP3") != -1)
{
response.ContentType = "audio/mpeg";
}
Debug.EnableGCMessages(false);
FileStream fileToServe = null;
try
{
byte[] buf = new byte[4096];
fileToServe = new FileStream(strFilePath, FileMode.Open, FileAccess.Read);
long fileLength = fileToServe.Length;
// Once we know the file length, set the content length.
response.ContentLength64 = fileLength;
// Send HTTP headers. Content lenght is ser
Debug.Print("File length " + fileLength);
// Now loops sending all the data.
for (long bytesSent = 0; bytesSent < fileLength; )
{
// Determines amount of data left.
long bytesToRead = fileLength - bytesSent;
bytesToRead = bytesToRead < 4096 ? bytesToRead : 4096;
// Reads the data.
fileToServe.Read(buf, 0, (int)bytesToRead);
// Writes data to browser
response.OutputStream.Write(buf, 0, (int)bytesToRead);
System.Threading.Thread.Sleep(10);
// Updates bytes read.
bytesSent += bytesToRead;
// Debug.GC(true);
}
fileToServe.Close();
//GC.WaitForPendingFinalizers();
Debug.Print( Debug.GC(true).ToString());
}
catch (Exception e)
{
if (fileToServe != null)
{
fileToServe.Close();
}
throw e;
}
}
}
}
Please “code tag” the code so it is readable.
Can you please give us a list of what assemblies (DLLs) are included in your project?
You are using this, right?
I suggest that you use the project as is. You Probably will need to remove FEZ Panda II assembly and replace it with FEZ Domino’s
I think I found the cause.
I do not have the GHIElectronics.NETMF.W5100.Http.dll as in the original project, instead I have the System.http; the reason is I do not find the GHIElectronics.NETMF.W5100.Http.dll in my computer.
Do you know where can I find it ?
thanks for the support
if you do not have the W5100 bits then you don’t have an up-to-date GHI SDK. You need to install a more recent one, as W5100 support was only added in one of the last few releases.
Yes, I think this should be the problem.
I uninstalled the microsoft framework and the GHI sdk; I reinstalled again everything (1st the framework and after the sdk) and the dlls are now in the PC; but I got the following errors ; I checked the dll versions and they are ok … too bad to be true…
…
Assembly: GHIElectronics.NETMF.W5100.Http (4.1.5.0) needs assembly ‘GHIElectronics.NETMF.W5100’ (4.1.5.0)
Assembly: GHIElectronics.NETMF.IO (4.1.5.0) needs assembly ‘GHIElectronics.NETMF.System’ (4.1.5.0)
Assembly: FEZ Domino Application (1.0.0.0) needs assembly ‘GHIElectronics.NETMF.IO’ (4.1.5.0)
Assembly: FEZ Domino Application (1.0.0.0) needs assembly ‘GHIElectronics.NETMF.W5100.Http’ (4.1.5.0)
Assembly: FEZ Domino Application (1.0.0.0) needs assembly ‘GHIElectronics.NETMF.W5100’ (4.1.5.0)
Assembly: GHIElectronics.NETMF.Net (4.1.5.0) needs assembly ‘Microsoft.SPOT.Hardware.SerialPort’ (4.1.2821.0)
Assembly: GHIElectronics.NETMF.Net (4.1.5.0) needs assembly ‘GHIElectronics.NETMF.System’ (4.1.5.0)
…
Remove these references from your vs solution and re-add them.
Hello,
No result …
In the line " Assembly: GHIElectronics.NETMF.Net (4.1.5.0) needs assembly ‘Microsoft.SPOT.Hardware’ (4.1.2821.0)" I checked both versions and they are matching, so I do not know what is going on
thanks
I did an upgrade to the firmware and it seems ok
Thanks for all your support
To avoid frustration, All you you need in this page, specially the tutorials: 
[url]http://tinyclr.com/support[/url]
thanks once more
Thank you for using FEZ. 8)
We are looking forward to seeing your creative projects.