private void CreateServer()
{
CoAPEndPoint endpoint = new CoAPEndPoint(0);
_server = new CoapServer();
// _resource = new StorageResource(TARGET, CONTENT_1);
// _server.Add(_resource);
Resource r2 = new EchoLocation("abc");
_server.Add(r2);
r2.Add(new EchoLocation("def"));
_server.AddEndPoint(endpoint);
_server.Start();
_serverPort = ((System.Net.IPEndPoint)endpoint.LocalEndPoint).Port;
Console.WriteLine($"Server port = {_serverPort}");
SecurityContextSet oscoapContexts = new SecurityContextSet();
_server.SecurityContexts.Add(SecurityContext.DeriveContext(secret, null, serverId, clientId));
_server.SecurityContexts.OscoreEvents += ServerEventHandler;
}
private static SecurityContextSet LoadContextSet(string fileName)
{
if (fileName == null)
{
fileName = "ServerKeys.cbor";
}
KeySet keys = new KeySet();
SecurityContextSet newSet = new SecurityContextSet();
FileStream fs = new FileStream(fileName, FileMode.Open);
using (BinaryReader reader = new BinaryReader(fs)) {
byte[] data = reader.ReadBytes((int)fs.Length);
CBORObject obj = CBORObject.DecodeFromBytes(data);
for (int i = 0; i < obj.Count; i++)
{
OneKey key = new OneKey(obj[i]);
string[] usages = key[_UsageKey].AsString().Split(' ');
foreach (String usage in usages)
{
if (usage == "oscoap")
{
SecurityContext ctx = SecurityContext.DeriveContext(
key[CoseKeyParameterKeys.Octet_k].GetByteString(),
null,
key[CBORObject.FromObject("RecipID")].GetByteString(),
key[CBORObject.FromObject("SenderID")].GetByteString(), null,
key[CoseKeyKeys.Algorithm]);
newSet.Add(ctx);
break;
}
else if (usage == "oscoap-group")
{
SecurityContext ctx = SecurityContext.DeriveGroupContext(
key[CoseKeyParameterKeys.Octet_k].GetByteString(), key[CBORObject.FromObject(2)].GetByteString(), key[CBORObject.FromObject("SenderID")].GetByteString(),
null, null,
null, null, null, key[CoseKeyKeys.Algorithm]);
foreach (CBORObject recipient in key[CBORObject.FromObject("recipients")].Values)
{
ctx.AddRecipient(recipient[CBORObject.FromObject("RecipID")].GetByteString(), new OneKey(recipient[CBORObject.FromObject("sign")]));
}
newSet.Add(ctx);
}
}
if ((usages.Length != 1) || (usages[0] != "oscoap"))
{
keys.AddKey(key);
}
}
reader.Close();
}
//
return(newSet);
}
private void CreateServer()
{
CoAPEndPoint endpoint = new CoAPEndPoint(0);
_server = new CoapServer();
// _resource = new StorageResource(TARGET, CONTENT_1);
// _server.Add(_resource);
Resource r2 = new EchoLocation("abc");
_server.Add(r2);
r2.Add(new EchoLocation("def"));
_server.AddEndPoint(endpoint);
_server.Start();
_serverPort = ((System.Net.IPEndPoint)endpoint.LocalEndPoint).Port;
SecurityContextSet oscoapContexts = new SecurityContextSet();
SecurityContextSet.AllContexts.Add(SecurityContext.DeriveContext(_Secret, _ServerId, _ClientId));
}
public static void Main(String[] args)
{
String method = null;
Uri uri = null;
String payload = null;
Boolean loop = false;
Boolean byEvent = false;
OneKey authKey = null;
SecurityContext oscoap = null;
SecurityContextSet contextSet = null;
if (args.Length == 0)
{
PrintUsage();
}
Int32 index = 0;
foreach (String arg in args)
{
if (arg[0] == '-')
{
if (arg.Equals("-l"))
{
loop = true;
}
else if (arg.Equals("-e"))
{
byEvent = true;
}
else if (arg.StartsWith("-psk="))
{
if (authKey == null)
{
authKey = new OneKey();
authKey.Add(COSE.CoseKeyKeys.KeyType, COSE.GeneralValues.KeyType_Octet);
}
authKey.Add(CoseKeyParameterKeys.Octet_k, CBORObject.FromObject(Encoding.UTF8.GetBytes(arg.Substring(5))));
}
else if (arg.StartsWith("-psk-id="))
{
if (authKey == null)
{
authKey = new OneKey();
authKey.Add(COSE.CoseKeyKeys.KeyType, COSE.GeneralValues.KeyType_Octet);
}
authKey.Add(COSE.CoseKeyKeys.KeyIdentifier, CBORObject.FromObject(Encoding.UTF8.GetBytes(arg.Substring(8))));
}
else if (arg.StartsWith("-oscoap="))
{
if (contextSet == null)
{
Console.WriteLine("Must have -oscoap-data before -oscoap");
Environment.Exit(1);
}
byte[] id = Encoding.UTF8.GetBytes(arg.Substring(8));
oscoap = contextSet.FindByGroupId(id).First();
}
else if (arg.StartsWith("-oscoap-data="))
{
contextSet = LoadContextSet(arg.Substring(13));
}
else
{
Console.WriteLine("Unknown option: " + arg);
}
}
else
{
switch (index)
{
case 0:
method = arg.ToUpper();
break;
case 1:
try
{
uri = new Uri(arg);
}
catch (Exception ex)
{
Console.WriteLine("Failed parsing URI: " + ex.Message);
Environment.Exit(1);
}
break;
case 2:
payload = arg;
break;
default:
Console.WriteLine("Unexpected argument: " + arg);
break;
}
index++;
}
}
if (method == null || uri == null)
{
PrintUsage();
}
Request request = NewRequest(method);
if (request == null)
{
Console.WriteLine("Unknown method: " + method);
Environment.Exit(1);
}
if ("OBSERVE".Equals(method))
{
request.MarkObserve();
loop = true;
}
else if ("DISCOVER".Equals(method) &&
(String.IsNullOrEmpty(uri.AbsolutePath) || uri.AbsolutePath.Equals("/")))
{
uri = new Uri(uri, "/.well-known/core");
}
CoAPEndPoint ep = null;
if (uri.Scheme == "coaps")
{
if (authKey == null)
{
Console.WriteLine("Must use the -psk option to provide an authentication key");
return;
}
ep = new DTLSClientEndPoint(authKey);
ep.Start();
request.EndPoint = ep;
}
request.URI = uri;
if (payload != null)
{
request.SetPayload(payload, MediaType.TextPlain);
}
if (oscoap != null)
{
request.OscoapContext = oscoap;
}
// uncomment the next line if you want to specify a draft to use
// request.EndPoint = CoAP.Net.EndPointManager.Draft13;
Console.WriteLine(Utils.ToString(request));
try
{
if (byEvent)
{
request.Respond += delegate(Object sender, ResponseEventArgs e)
{
Response response = e.Response;
if (response == null)
{
Console.WriteLine("Request timeout");
}
else
{
Console.WriteLine(Utils.ToString(response));
Console.WriteLine("Time (ms): " + response.RTT);
}
if (!loop)
{
if (ep != null)
{
ep.Stop();
}
Environment.Exit(0);
}
};
request.Send();
while (true)
{
Console.ReadKey();
}
}
else
{
// uncomment the next line if you need retransmission disabled.
// request.AckTimeout = -1;
request.Send();
do
{
Console.WriteLine("Receiving response...");
Response response = null;
response = request.WaitForResponse();
if (response == null)
{
Console.WriteLine("Request timeout");
break;
}
else
{
Console.WriteLine(Utils.ToString(response));
Console.WriteLine("Time elapsed (ms): " + response.RTT);
if (response.ContentType == MediaType.ApplicationLinkFormat)
{
IEnumerable <WebLink> links = LinkFormat.Parse(response.PayloadString);
if (links == null)
{
Console.WriteLine("Failed parsing link format");
Environment.Exit(1);
}
else
{
Console.WriteLine("Discovered resources:");
foreach (var link in links)
{
Console.WriteLine(link);
}
}
}
}
} while (loop);
}
}
catch (Exception ex)
{
Console.WriteLine("Failed executing request: " + ex.Message);
Console.WriteLine(ex);
if (ep != null)
{
ep.Stop();
}
Environment.Exit(1);
}
}
static CoapServer SetupServer(ICoapConfig config, EndPoint endPoint, int port, KeySet dtlsSignKeys,
KeySet dtlsValidateKeys)
{
//
//
CoapServer server = new CoapServer(config, endPoint, port);
DTLSEndPoint ep2 = new DTLSEndPoint(dtlsSignKeys, dtlsValidateKeys, port + 1);
server.AddEndPoint(ep2);
IResource root = new HelloWorldResource("hello", true);
server.Add(root);
IResource x = new OscoapTest("coap");
root.Add(x);
x = new OscoapTest("1");
root.Add(x);
root.Add(new OscoapTest("2"));
root.Add(new OscoapTest("3"));
root.Add(new OscoapTest("6"));
root.Add(new OscoapTest("7"));
server.Add(new OscoapTest("test"));
server.Add(new TimeResource("observe"));
server.Add(new LargeResource("LargeResource"));
#if DEV_VERSION
AceTest.Setup(server, "RS1");
#if false
server.Add(new Com.AugustCellars.CoAP.EDHOC.EdhocResource(edhocKeys, edhocSign));
#endif
// Setup the ACE resources
string UseAsServer = "coaps://localhost:5689/token";
// UseAsServer = "coaps://31.133.142.90/token";
// UseAsServer = "coaps://31.133.134.176/token";
KeySet myDecryptKeySet = new KeySet();
OneKey key = new OneKey();
key.Add(CoseKeyKeys.KeyType, GeneralValues.KeyType_Octet);
key.Add(CoseKeyParameterKeys.Octet_k, CBORObject.FromObject(new byte[] { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 }));
key.Add(CoseKeyKeys.KeyIdentifier, CBORObject.FromObject(Encoding.UTF8.GetBytes("SERVER_KID")));
key.Add(CoseKeyKeys.Algorithm, AlgorithmValues.AES_CCM_64_128_128);
myDecryptKeySet.AddKey(key);
key = new OneKey();
key.Add(CoseKeyKeys.KeyType, GeneralValues.KeyType_Octet);
key.Add(CoseKeyParameterKeys.Octet_k, CBORObject.FromObject(new byte[] { (byte)'a', (byte)'b', (byte)'c', 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32 }));
key.Add(CoseKeyKeys.KeyIdentifier, CBORObject.FromObject(new byte[] { 0x70, 0x63, 0x6F, 0x61, 0x70, 0x3A, 0x2F, 0x2F, 0x6C, 0x6F, 0x63, 0x61, 0x6C, 0x68, 0x6F, 0x73, 0x74 }));
key.Add(CoseKeyKeys.Algorithm, CBORObject.FromObject(5));
myDecryptKeySet.AddKey(key);
AuthZ authZ = new AuthZ(myDecryptKeySet, null);
server.Add(authZ);
AceOAuthTest r = new AceOAuthTest("ace-echo", true, true, UseAsServer);
r.AuthTokenProcessor = authZ;
server.Add(r);
OscoapContexts = SecurityContextSet.AllContexts;
#endif
// ep2.Add(new AceOAuthTest("ace/echo", true, true, null));
#if INCLUDE_RD
ResourceDirectoryResource.CreateResources(server);
#endif
#if DEV_VERSION
// server = new CoapServer(config);
CoAPEndPoint tcp = new TcpEndPoint(port);
tcp.Start();
server.AddEndPoint(tcp);
// server.Add(new HelloWorldResource("hello", false));
// server.Add(new LargeResource("LargeResource"));
server.Add(new LargeResource("ExtraLargeResource", 20 * 1024));
server.Add(new StorageResource("StorageHere"));
server.Start();
// server = new CoapServer(config);
tcp = new TLSEndPoint(dtlsSignKeys, dtlsValidateKeys, port + 1);
tcp.Start();
server.AddEndPoint(tcp);
AceTest.Setup(server, "RS2");
//server.Add(new HelloWorldResource("hello", false));
#endif
server.Start();
return(server);
}
