public void MutiTierTest()
{
CoapClient client = new CoapClient(new Uri($"coap://localhost:{_port}/ps"));
Response resp = client.Get();
Assert.AreEqual(StatusCode.Content, resp.StatusCode);
Assert.AreEqual(MediaType.ApplicationLinkFormat, resp.ContentType);
List <WebLink> links = LinkFormat.Parse(resp.PayloadString).ToList();
Assert.AreEqual(0, links.Count);
resp = client.Post($"<middle>;ct={MediaType.ApplicationLinkFormat}", MediaType.ApplicationLinkFormat);
Assert.AreEqual(StatusCode.Created, resp.StatusCode);
Assert.AreEqual("ps/middle", resp.LocationPath);
client.UriPath = "/ps/middle";
resp = client.Post($"<topic1>;ct={MediaType.TextPlain}", MediaType.ApplicationLinkFormat);
Assert.AreEqual(StatusCode.Created, resp.StatusCode);
Assert.AreEqual("ps/middle/topic1", resp.LocationPath);
resp = client.Post($"<topic2>;ct={MediaType.ApplicationCbor}", MediaType.ApplicationLinkFormat);
Assert.AreEqual(StatusCode.Created, resp.StatusCode);
Assert.AreEqual("ps/middle/topic2", resp.LocationPath);
client.UriPath = "";
resp = client.Get();
Assert.AreEqual(StatusCode.Content, resp.StatusCode);
Assert.AreEqual(MediaType.ApplicationLinkFormat, resp.ContentType);
links = LinkFormat.Parse(resp.PayloadString).ToList();
Assert.AreEqual(3, links.Count);
string[] linkStrings = resp.PayloadString.Split(',');
Assert.Contains("</ps/middle/topic2>;ct=60;obs", linkStrings);
Assert.Contains("</ps/middle/topic1>;ct=0;obs", linkStrings);;
}
public void PostTo()
{
CoapClient c = new CoapClient(Program.Host)
{
UriPath = "/.well-known/core",
UriQuery = "ep=node1",
Timeout = 5000,
EndPoint = EndPoints.First()
};
Response r = c.Post(new byte[] { }, MediaType.ApplicationLinkFormat);
if (r == null)
{
Console.WriteLine("No response received");
}
else
{
if (r.StatusCode != StatusCode.Changed)
{
Console.WriteLine("Incorrect response");
}
Console.WriteLine(Utils.ToString(r));
}
}
static void RunTest5_4_1()
{
CoapClient request = new CoapClient(Program.Host + "/oscore/hello/1")
{
Timeout = 2000
};
Response response = request.Post(new byte[] { 0x4a }, MediaType.TextPlain);
if (response == null)
{
Console.WriteLine("Failed to receive response");
return;
}
if (response.StatusCode != StatusCode.Changed)
{
Console.WriteLine($"Content type should be 2.04 not {response.StatusCode}");
}
if (response.PayloadSize != 1 || response.Payload[0] != 0x4a)
{
Console.WriteLine("Payload for the package is wrong - should be 0x4a");
}
Console.WriteLine($"Response Message:\n{Utils.ToString(response)}");
}
static void RunTest4(string[] cmds)
{
// Do it as a third party.
CoapClient cl = new CoapClient(Program.Host)
{
UriPath = ResourceRegister,
UriQuery = "ep=node2",
Timeout = 20 * 1000
};
Response r1 = cl.Post(
"</temp>;rt=\"temperature\";ct=0," +
"</light>;rt=\"light-lux\";ct=0," +
"</t>;anchor=\"sensors/temp\";rel=\"alternate\"," +
"<http://www.example.com/sensors/t123>;anchor=\"sensors/temp\";rel=\"describedby\"",
MediaType.ApplicationLinkFormat);
if (r1 == null)
{
Console.WriteLine("No response message retrieved");
return;
}
Test4Location = r1.LocationPath;
return;
}
static void ProductCall()
{
// Create a new client
var client = new CoapClient();
// Set the Uri to visit
client.Uri = new Uri("coap://127.0.0.1:5683/products");
// Build the data
MemoryStream stream = new MemoryStream();
// Example product
dynamic product = new JObject();
product.name = "Example Product";
product.price = 120.35;
// Get JSON object from example product
var response = client.Post(product.ToString(), MediaType.ApplicationJson);
Console.WriteLine("Wrote product: {0}", product.ToString());
// Get the response
Console.WriteLine("Response from GET: {0}", response.PayloadString);
Console.ReadLine();
}
static void Main(string[] args)
{
Thread.Sleep(1000);
CoapClient client = new CoapClient()
{
Uri = new Uri("coap://localhost"),
UriPath = "/ps"
};
Response resp = client.Get();
Console.WriteLine($"Discover ==> {resp.ToString()}");
resp = client.Post("<topic1>;ct=40", MediaType.ApplicationLinkFormat);
Console.WriteLine($"Create topic1 ==> {resp.ToString()}");
client.UriPath = "/ps/topic1";
resp = client.Post("<subtopic1>;ct=0;rt=temperature;obs", MediaType.ApplicationLinkFormat);
Console.WriteLine($"Create subtopic1 ==> {resp.ToString()}");
client.UriPath = "/ps";
resp = client.Get();
Console.WriteLine($"Discover ==> {resp.PayloadString}");
client.UriPath = "/ps/topic1/subtopic1";
resp = client.Post("Payload #1", MediaType.TextPlain);
Console.WriteLine($"Post #1 ==> {resp.ToString()}");
resp = client.Post("Payload #2", MediaType.TextPlain);
Console.WriteLine($"Post #2 ==> {resp.ToString()}");
resp = client.Post("Payload #3", MediaType.TextXml);
Console.WriteLine($"Post #2 ==> {resp.ToString()}");
}
private static void TestPostMessage_ApiCoap()
{
var cliente = new CoapClient();
cliente.Uri = uri;
var files = Directory.EnumerateFiles(path, "*.txt");
foreach (string file in files)
{
var fileName = new FileInfo(file).Name;
var peticion = ObtenerMetricas(fileName);
var response = cliente.Post(peticion);
Console.WriteLine(fileName + " response: " + response.StatusCode.ToString());
}
}
private static async Task TestPost_ApiCoap()
{
var client = new CoapClient();
client.Uri = new Uri("coap://localhost:5683/helloworld");
var json = JsonConvert.SerializeObject(new EntidadSensor()
{
FK_IdEstacionBase = 1,
Id = 11,
Nombre = "EB01SE11",
Latitud = 0.00.ToString(),
Longitud = 0.00.ToString()
});
var res = client.Post(json);
Console.WriteLine(res.ResponseText);
}
private static async Task PeticionPost()
{
var cliente = new CoapClient();
cliente.Uri = uri;
var files = Directory.EnumerateFiles(path, "*.txt");
foreach (string file in files)
{
var fileName = new FileInfo(file).Name;
string peticion = ObtenerMetricas(fileName);
var response = cliente.Post(peticion);
if (response.StatusCode.ToString() == "Changed")
{
File.Delete(file); //elimina el fichero
}
}
}
static void RunTest6(string[] cmds)
{
// Do it as a third party.
CoapClient cl = new CoapClient(Program.Host)
{
UriPath = GroupRegister,
UriQuery = "gp=lights&base=coap://[ff35:30:2001:db8::1]/",
Timeout = 20 * 1000
};
Response r1 = cl.Post(
$"<{Test3Location}>,<{Test4Location}>",
MediaType.ApplicationLinkFormat);
if (r1 == null)
{
Console.WriteLine("No response message retrieved");
return;
}
Test6Location = r1.LocationPath;
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
while (!stoppingToken.IsCancellationRequested)
{
try
{
var files = Directory.EnumerateFiles(directorioSensores, "*.txt");
foreach (string file in files)
{
var fileName = new FileInfo(file).Name;
string payload = GetData(fileName);
if (!string.IsNullOrEmpty(payload))
{
var result = client.Post(payload);
if (result.StatusCode.ToString() == "Changed")
{
_logger.Information($"WORKER (ExecuteAsync) - La informacion del fichero {fileName} se ha insertado correctamente");
File.Delete(file); //elimina el fichero
}
else
{
_logger.Error($"ERR. WORKER (ExecuteAsync) - No se ha podido insertar la información del fichero {fileName}");
File.Delete(file); //elimina el fichero
}
}
}
}
catch (Exception ex)
{
_logger.Error($"ERR WORKER (ExecuteAsync) - {ex.Message}");
}
await Task.Delay(tiempoEnvio * 1000, stoppingToken);
}
}
static void RunTest5(string[] cmds)
{
// Do it as a third party.
CoapClient cl = new CoapClient(Program.Host)
{
UriPath = ResourceRegister,
UriQuery = "ep=node3",
Timeout = 20 * 1000
};
Response r1 = cl.Post(
"</light/left>;rt=\"light\";ct=0," +
"</light/middle>;rt=\"light\";ct=0," +
"</light/right>;rt=\"light\";ct=0",
MediaType.ApplicationLinkFormat);
if (r1 == null)
{
Console.WriteLine("No response message retrieved");
return;
}
Test5Location = r1.LocationPath;
}
static void RunTest53()
{
CoapClient request = new CoapClient(Program.Host + "/oscore/hello/1")
{
Timeout = 2000,
OscoreContext = _oscoreContext
};
byte[] saveKey = _oscoreContext.Recipient.Key;
byte[] newKey = (byte[])saveKey.Clone();
_oscoreContext.Sender.Key = newKey;
newKey[0] += 1;
Response response = request.Post(new byte[] { 0x4a }, MediaType.TextPlain);
if (response == null)
{
Console.WriteLine("Failed to receive response");
return;
}
if (response.StatusCode != StatusCode.Changed)
{
Console.WriteLine($"Content type should be 2.04 not {response.StatusCode}");
}
if (response.PayloadSize != 1 || response.Payload[0] != 0x4a)
{
Console.WriteLine("Payload for the package is wrong - should be 0x4a");
}
Console.WriteLine($"Response Message:\n{Utils.ToString(response)}");
_oscoreContext.Recipient.Key = saveKey;
}
static void RunTest6()
{
CoapClient request = new CoapClient(Program.Host + "/hello/6")
{
Timeout = 2000,
OscoapContext = _oscoap_context
};
Response response = request.Post(new byte[] { 0x4a }, MediaType.TextPlain);
if (response == null)
{
Console.WriteLine("Failed to receive response");
return;
}
if (response.StatusCode != StatusCode.Changed)
{
Console.WriteLine($"Content type should be 2.04 not {response.StatusCode}");
}
Console.WriteLine($"Response Message:\n{Utils.ToString(response)}");
}
static void RunTest13(string[] cmds)
{
// Do it as a third party.
CoapClient cl = new CoapClient(Program.Host)
{
UriPath = Test4Location,
UriQuery = "base=coaps://new.example.com:5684",
Timeout = 20 * 1000
};
Response r1 = cl.Post((byte[])null, MediaType.Undefined);
if (r1 == null)
{
Console.WriteLine("No response message retrieved");
return;
}
if (r1.StatusCode != StatusCode.Changed)
{
Console.WriteLine("Incorrect return code");
}
Console.WriteLine(Utils.ToString(r1));
}
public static Response SetValues(this CoapClient _client, TradFriRequest request)
{
_client.UriPath = request.UriPath;
return(_client.Post(request.Payload));
}
static void RunTest2X(string[] cmds)
{
int useContentFormat = MediaType.ApplicationLinkFormat;
if (cmds.Length > 2)
{
switch (cmds[2].ToLower())
{
#if false // Dead code?
case "cbor":
useContentFormat = MediaType.ApplicationLinkFormatCbor;
break;
case "json":
useContentFormat = MediaType.ApplicationLinkFormatJson;
break;
#endif
default:
Console.WriteLine("Unrecognized content type");
return;
}
}
CoapClient c = new CoapClient(Program.Host);
IEnumerable <WebLink> d = c.Discover("rt=core.r*", MediaType.ApplicationLinkFormat);
string endpointRegister = null;
string endpointLookup = null;
string groupRegister = null;
string groupLookup = null;
string resourceLookup = null;
foreach (WebLink w in d)
{
foreach (string s in w.Attributes.GetResourceTypes())
{
switch (s)
{
case "core.rd":
endpointRegister = w.Uri;
break;
case "core.rd-lookup-res":
resourceLookup = w.Uri;
break;
case "core.rd-group":
groupRegister = w.Uri;
break;
case "core.rd-lookup-gp":
groupLookup = w.Uri;
break;
case "core.rd-lookup-ep":
endpointLookup = w.Uri;
break;
}
}
}
if (endpointRegister == null)
{
Console.WriteLine("No endpoint registration resource found");
return;
}
// Register three endpoints and get their locations
Uri uri1 = new Uri(Program.Host, endpointRegister);
c = new CoapClient(uri1);
c.UriQuery = "ep=endpoint1&con=coap://sensor1<=240";
Response r =
c.Post(EncodeResources(
"</sensors/temp>;ct=41;rt=\"temperature-c\";if=sensor,</sensors/light>;ct=41;rt=\"light-lux\";if=sensor;obs",
useContentFormat),
useContentFormat);
string endpoint1Location = r.Location;
c.UriQuery = "ep=endpoint2&d=floor3&con=coap://sensor2<=120";
r = c.Post(EncodeResources(
"</sensors/temp>;ct=41;rt=\"temperature-c\";if=sensor,</sensors/light>;ct=41;rt=\"light-lux\";if=sensor",
useContentFormat), useContentFormat);
string endpoint2Location = r.Location;
c.UriQuery = "ep=endpoint3&con=coaps://door1&even=yes<=120";
r = c.Post(EncodeResources(
"</door/state>;ct=41;rt=doorx;if=senseor,</door/lock>,</door/desc>;ct=0;anchor=\"https://doorcomany/locks?locktype=1\";rt=description",
useContentFormat), useContentFormat);
string endpoint3Location = r.Location;
// do end point queries
if (endpointLookup == null)
{
Console.WriteLine("No endpoint lookup resource found");
}
else
{
uri1 = new Uri(Program.Host, endpointLookup);
c = new CoapClient(uri1);
d = c.Discover(endpointLookup, null, useContentFormat);
Console.WriteLine("Query Endpoint all - expect 3");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
d = c.Discover(endpointLookup, "if=sensor", useContentFormat);
Console.WriteLine("Query for if=sensor");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
d = c.Discover(endpointLookup, "even=yes", useContentFormat);
Console.WriteLine("Query for even=yes");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
}
if (resourceLookup == null)
{
Console.WriteLine("No resource lookup resource found");
}
else
{
uri1 = new Uri(Program.Host, resourceLookup);
c = new CoapClient(uri1);
d = c.Discover(resourceLookup, null, useContentFormat);
Console.WriteLine("Query resources all");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
d = c.Discover(resourceLookup, "if=sensor", useContentFormat);
Console.WriteLine("Query resource - if=sensor");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
d = c.Discover(resourceLookup, "ep=endpoint1", useContentFormat);
Console.WriteLine("Query resource - endpoint1");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
}
if (groupRegister != null)
{
uri1 = new Uri(Program.Host, groupRegister);
c = new CoapClient(uri1);
c.UriQuery = "gp=lights";
r = c.Post($"<{endpoint1Location}>,<{endpoint2Location}>", MediaType.ApplicationLinkFormat);
string group1Location = r.Location;
c.UriQuery = "gp=all&con=coap://[MD1]:8080&odd=no";
r = c.Post($"<{endpoint1Location}>,<{endpoint2Location}>,<{endpoint3Location}>",
MediaType.ApplicationLinkFormat);
if (groupLookup != null)
{
uri1 = new Uri(Program.Host, groupLookup);
c = new CoapClient(uri1);
// Get all of the groups
d = c.Discover(groupLookup, null, useContentFormat);
Console.WriteLine("Retrieve all groups - expect 3");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
// Get all groups w/ doors
d = c.Discover(groupLookup, "rt=doorx", useContentFormat);
Console.WriteLine("Retrieve groups w/ rt=doors - expect 1");
foreach (WebLink w in d)
{
Console.WriteLine(" " + w.ToString());
}
}
}
}
private static void RunTest3(string[] cmds)
{
// Simple registration -
RdServer server = new RdServer();
server.Start();
server.PostTo();
Thread.Sleep(20 * 1000);
server.Stop();
CoapClient cl = new CoapClient(Program.Host)
{
UriPath = EndpointLookup,
UriQuery = "ep=node1",
Timeout = 20 * 1000
};
Response r1 = cl.Get(MediaType.ApplicationLinkFormat);
if (r1 != null && r1.StatusCode == StatusCode.Content)
{
string ss = r1.PayloadString.Substring(1);
int i = ss.IndexOf('>');
Test3Location = ss.Substring(0, i);
}
Console.WriteLine("Test 3 done");
#if false
if (cmds.Length == 2)
{
// Do it as a third party.
CoapClient cl = new CoapClient(Program.Host)
{
UriPath = "/rd",
Timeout = 20 * 1000,
UriQuery = "lt=6000&ep=node1"
};
Response r1 = cl.Post(
"</sensors/temp>;ct=41;rt=\"temperature-c\";if=sensor;anchor=\"coap://spurious.example.com:5683\"," +
"</sensors/light>;ct=41;rt=\"light-lux\";if=sensor",
MediaType.ApplicationLinkFormat);
if (r1 == null)
{
Console.WriteLine("No response message retrieved");
return;
}
Test3Location = r1.LocationPath;
return;
}
if (cmds.Length != 4)
{
Console.WriteLine("Should be 'rd_test 1 <server to do Simple Registration> <endpoint name>'");
return;
}
CoapClient client = new CoapClient(cmds[2])
{
UriPath = "/rd/post2",
Timeout = 20 * 1000
};
Response r = client.Post(Program.Host.ToString() + " " + cmds[3]);
if (r == null)
{
Console.WriteLine("No response message retrieved");
return;
}
else if (r.Code != (int)StatusCode.Changed)
{
Console.WriteLine("Unexpected status code {0}.{1} returned", r.Code / 32, r.Code % 32);
return;
}
#endif
}
public void Process(Request request, Response response)
{
// Is this processable?
if (response.StatusCode != StatusCode.Unauthorized ||
response.ContentFormat != 65008)
{
return;
}
try {
// Init from the response data
Oauth.AsInfo info = new Oauth.AsInfo(response.Payload);
// Missage this as needed.
string aSServer = info.ASServer;
// Need to build one from scratch
if (!authServers.ContainsKey(info.ASServer))
{
Console.WriteLine($"No security association is setup for {info.ASServer}");
return;
}
AuthServerInfo asi = authServers[info.ASServer];
if (asi.ClientLink == null)
{
asi.ClientLink = new CoapClient(new Uri(info.ASServer));
if (asi.UseDTLS)
{
asi.ClientLink.EndPoint = new DTLSClientEndPoint(asi.TlsKey);
asi.ClientLink.EndPoint.Start();
}
}
// M00BUG - need to make sure that this will pickup a port number if given.
string audience = $"{request.URI.Scheme}://{request.URI.Authority}";
Oauth.Request myRequest = new Oauth.Request("client_credentials")
{
Audience = audience,
Scope = CBORObject.FromObject(request.UriPath)
};
myRequest.Profile = Profile;
byte[] payload = myRequest.EncodeToBytes();
asi.ClientLink.Timeout = 2 * 60 * 1000;
Response asResponse = asi.ClientLink.Post(payload, MediaType.ApplicationCbor);
if (asResponse == null)
{
asi.ClientLink.EndPoint.Stop();
asi.ClientLink = null;
Console.WriteLine($"Timed out requesting token from {info.ASServer}");
return;
}
if (asResponse.StatusCode != StatusCode.Created)
{
// We had an error condition appear
if (asResponse.Payload != null)
{
CBORObject obj = CBORObject.DecodeFromBytes(asResponse.Payload);
int error = obj["error"].AsInt32();
string errorText = "";
if (obj.ContainsKey("error_description"))
{
errorText = obj["error_description"].AsString();
}
Console.WriteLine(
$"Recieved an error {asResponse.StatusCode} with error no = {error} and description '{errorText}'");
}
else
{
Console.WriteLine($"Received and error {asResponse.StatusCode} from the AS but no text");
}
return;
}
Oauth.Response myResponse = new Oauth.Response(asResponse.Payload);
// default profile for client -
#if false
if (Profile != null && myResponse.Profile != Profile)
{
Console.WriteLine("AS Server returned an unexpected profile {0}", myResponse.Profile);
return;
}
#endif
myResponse.Profile = Oauth.ProfileIds.Coap_Dtls;
// Post token to resource server
CoapClient client = new CoapClient();
client.Uri = new Uri($"coap://{request.URI.Authority}/authz-info");
client.Timeout = 10000; // 1 second
Response tknResponse = client.Post(myResponse.Token, MediaType.ApplicationCbor);
if (tknResponse == null)
{
Console.WriteLine("Post of token failed w/ no response");
return;
}
if (tknResponse.StatusCode != StatusCode.Created)
{
Console.WriteLine($"Post of token failed with error {tknResponse.StatusCode}");
return;
}
Confirmation cnf = myResponse.Confirmation;
Request newRequest = new Request(request.Method);
newRequest.Payload = request.Payload;
newRequest.SetOptions(request.GetOptions());
DTLSClientEndPoint endPoint = null;
switch (myResponse.Profile)
{
case Oauth.ProfileIds.Coap_Dtls: {
OneKey key = cnf.Key;
endPoint = new DTLSClientEndPoint(cnf.Key);
endPoint.Start();
newRequest.EndPoint = endPoint;
newRequest.URI = new Uri($"coaps://{request.URI.Authority}/{request.URI.AbsolutePath}");
}
break;
case Oauth.ProfileIds.Coap_Oscore: {
OneKey oneKey = cnf.Key;
byte[] salt = null;
if (oneKey.ContainsName("slt"))
{
salt = oneKey[CBORObject.FromObject("slt")].GetByteString();
}
CBORObject alg = null;
if (oneKey.ContainsName(CoseKeyKeys.Algorithm))
{
alg = oneKey[CoseKeyKeys.Algorithm];
}
CBORObject kdf = null;
if (oneKey.ContainsName(CBORObject.FromObject("kdf")))
{
kdf = oneKey[CBORObject.FromObject("kdf")];
}
SecurityContext oscoapContext = SecurityContext.DeriveContext(
oneKey[CoseKeyParameterKeys.Octet_k].GetByteString(),
oneKey[CBORObject.FromObject("sid")].GetByteString(),
oneKey[CBORObject.FromObject("rid")].GetByteString(),
salt, alg, kdf);
newRequest.OscoapContext = oscoapContext;
}
break;
default:
Console.WriteLine("Cannot rewrite as we don't recognize the profile");
return;
}
newRequest.Respond += delegate(Object sender, ResponseEventArgs e)
{
Response responseN = e.Response;
if (responseN == null)
{
Console.WriteLine("Request timeout");
}
else
{
Console.WriteLine(Utils.ToString(responseN));
Console.WriteLine("Time (ms): " + responseN.RTT);
}
if (endPoint != null)
{
endPoint.Stop();
}
};
newRequest.Send();
}
catch (Exception e) {
Console.WriteLine("Error processing AceAuthz - " + e.ToString());
}
}
public void Process(Request request, Response response)
{
// Is this processable?
if (response.StatusCode != StatusCode.Unauthorized /* ||
* !(response.ContentFormat == 65008 || response.ContentFormat == MediaType.ApplicationCbor)*/)
{
return;
}
try {
// Init from the response data
Oauth.AsInfo info = new Oauth.AsInfo(response.Payload);
// Massage this as needed.
string aSServer = info.ASServer;
// Need to build one from scratch
if (!authServers.ContainsKey(info.ASServer))
{
Console.WriteLine($"No security association is setup for {info.ASServer}");
return;
}
AuthServerInfo asi = authServers[info.ASServer];
if (asi.ClientLink == null)
{
asi.ClientLink = new CoapClient(new Uri(info.ASServer));
if (asi.UseDTLS)
{
asi.ClientLink.EndPoint = new DTLSClientEndPoint(asi.TlsKey);
asi.ClientLink.EndPoint.Start();
}
else
{
if (asi.ClientLink.Uri.Scheme == "coaps")
{
asi.ClientLink.Uri = new Uri($"coap://{asi.ClientLink.Uri.Authority}/{asi.ClientLink.UriPath}");
}
asi.ClientLink.OscoreContext = asi.OscoreKey;
}
}
// M00BUG - need to make sure that this will pickup a port number if given.
string audience = $"{request.URI.Scheme}://{request.URI.Authority}";
if (UseAudience != null)
{
audience = UseAudience;
}
Oauth.Request myRequest = new Oauth.Request("client_credentials")
{
Audience = audience,
Scope = (UseScopeValue == null) ? CBORObject.FromObject(request.UriPath) : UseScopeValue
};
if (ClientKey != null)
{
myRequest.Cnf = new Confirmation();
switch (ClientKeyType)
{
case 1: // kid
myRequest.Cnf.Kid = ClientKey.PrivateKey[CoseKeyKeys.KeyIdentifier].GetByteString();
break;
case 2: // key
myRequest.Cnf.Key = ClientKey.PrivateKey;
break;
}
}
Response asResponse;
if (asi.UseJSON)
{
string jsonPayload = myRequest.EncodeToString();
asi.ClientLink.Timeout = 2 * 60 * 1000;
asResponse = asi.ClientLink.Post(jsonPayload, MediaType.ApplicationJson);
}
else
{
byte[] payload = myRequest.EncodeToBytes();
asi.ClientLink.Timeout = 2 * 60 * 1000;
asResponse = asi.ClientLink.Post(payload, MediaType.ApplicationCbor);
}
if (asResponse == null)
{
asi.ClientLink.EndPoint.Stop();
asi.ClientLink = null;
Console.WriteLine($"Timed out requesting token from {info.ASServer}");
return;
}
if (asResponse.StatusCode != StatusCode.Created)
{
// We had an error condition appear
if (asResponse.Payload != null)
{
CBORObject obj = CBORObject.DecodeFromBytes(asResponse.Payload);
int error = obj[/*"error"*/ CBORObject.FromObject(15)].AsInt32();
string errorText = "";
if (obj.ContainsKey(/*"error_description")*/ CBORObject.FromObject(16)))
{
errorText = obj[CBORObject.FromObject(16)].AsString();
}
Console.WriteLine(
$"Received an error {asResponse.StatusCode} with error no = {error} and description '{errorText}'");
}
else
{
Console.WriteLine($"Received and error {asResponse.StatusCode} from the AS but no text");
}
return;
}
Oauth.Response myResponse = Oauth.Response.FromCBOR(asResponse.Payload);
// default profile for client -
#if false
if (Profile != null && myResponse.Profile != Profile)
{
Console.WriteLine("AS Server returned an unexpected profile {0}", myResponse.Profile);
return;
}
#endif
if (!myResponse.ContainsKey(Oauth.Oauth_Parameter.Profile))
{
myResponse.Profile = Oauth.ProfileIds.Coap_Dtls;
}
// Post token to resource server
byte[][] OscoreSalts = null;
if (!SendTokenAsPsk)
{
CoapClient client = new CoapClient();
client.Uri = new Uri($"coap://{request.URI.Authority}/authz-info");
client.Timeout = 10000; // 1 second
Response tknResponse = null;
if (myResponse.Profile == Oauth.ProfileIds.Coap_Oscore)
{
byte[] mySalt = new byte[] { 32, 33, 34, 35, 36, 37, 38 };
CBORObject post = CBORObject.NewMap();
post.Add((CBORObject)Oauth.Oauth_Parameter.Access_Token, myResponse.Token);
post.Add((CBORObject)Oauth.Oauth_Parameter.CNonce, mySalt);
tknResponse = client.Post(post.EncodeToBytes(), MediaType.ApplicationAceCbor);
OscoreSalts = new byte[][] { mySalt, null };
}
else
{
tknResponse = client.Post(myResponse.Token, MediaType.ApplicationOctetStream);
}
if (tknResponse == null)
{
Console.WriteLine("Post of token failed w/ no response");
return;
}
if (tknResponse.StatusCode != StatusCode.Created)
{
Console.WriteLine($"Post of token failed with error {tknResponse.StatusCode}");
return;
}
if (tknResponse.ContentType == MediaType.ApplicationAceCbor)
{
CBORObject post = CBORObject.DecodeFromBytes(tknResponse.Payload);
if (post.ContainsKey((CBORObject)Oauth.Oauth_Parameter.Client_id))
{
// Retrieve
}
if (post.ContainsKey((CBORObject)Oauth.Oauth_Parameter.CNonce))
{
if (OscoreSalts == null)
{
throw new Exception("Internal Error - salts");
}
OscoreSalts[1] = post[(CBORObject)Oauth.Oauth_Parameter.CNonce].GetByteString();
}
}
}
Confirmation cnf = myResponse.Confirmation;
if (cnf == null)
{
if (ClientKey == null)
{
Console.WriteLine("Returned a token but I don't know what key I should be using");
return;
}
cnf = new Confirmation(ClientKey.PrivateKey);
}
if (cnf.Kid != null)
{
Console.WriteLine("Missing code - how do we map a kid to a real key?");
return;
}
Request newRequest = new Request(request.Method);
newRequest.Payload = request.Payload;
newRequest.SetOptions(request.GetOptions());
DTLSClientEndPoint endPoint = null;
switch (myResponse.Profile)
{
case Oauth.ProfileIds.Coap_Dtls: {
OneKey key = cnf.Key;
LastKeyFound = cnf.Key;
if (SendTokenAsPsk)
{
cnf.Key.AsCBOR().Set(CoseKeyKeys.KeyIdentifier, CBORObject.FromObject(myResponse.Token));
}
endPoint = new DTLSClientEndPoint(cnf.Key);
endPoint.Start();
if (myResponse.RsConfirmation != null)
{
ResourceInfo rsInfo = new ResourceInfo(myResponse.RsConfirmation.Key);
endPoint.TlsEventHandler += rsInfo.CheckRPK;
}
newRequest.EndPoint = endPoint;
newRequest.URI = new Uri($"coaps://{request.URI.Authority}/{request.URI.AbsolutePath}");
}
break;
case Oauth.ProfileIds.Coap_Oscore: {
CBORObject oscoreContext = cnf.AsCBOR[CBORObject.FromObject(Confirmation.ConfirmationIds.COSE_OSCORE)];
byte[] salt = new byte[0];
if (oscoreContext.ContainsKey(CBORObject.FromObject(6)))
{
salt = oscoreContext[CBORObject.FromObject(CBORObject.FromObject(6))].GetByteString();
}
CBORObject alg = null;
if (oscoreContext.ContainsKey(CBORObject.FromObject(5)))
{
alg = oscoreContext[CBORObject.FromObject(5)];
}
CBORObject kdf = null;
if (oscoreContext.ContainsKey(CBORObject.FromObject(4)))
{
kdf = oscoreContext[CBORObject.FromObject(4)];
}
byte[] keyContext = null;
if (oscoreContext.ContainsKey(CBORObject.FromObject(7)))
{
keyContext = oscoreContext[CBORObject.FromObject(7)].GetByteString();
}
if (OscoreSalts == null)
{
throw new Exception("Internal Error");
}
byte[] newSalt = new byte[salt.Length + OscoreSalts[0].Length + OscoreSalts[1].Length];
Array.Copy(salt, newSalt, salt.Length);
Array.Copy(OscoreSalts[0], 0, newSalt, salt.Length, OscoreSalts[0].Length);
Array.Copy(OscoreSalts[1], 0, newSalt, salt.Length + OscoreSalts[0].Length, OscoreSalts[1].Length);
SecurityContext oscoapContext = SecurityContext.DeriveContext(
oscoreContext[CBORObject.FromObject(1)].GetByteString(), keyContext,
oscoreContext[CBORObject.FromObject(2)].GetByteString(),
oscoreContext[CBORObject.FromObject(3)].GetByteString(),
newSalt, alg, kdf);
newRequest.OscoreContext = oscoapContext;
newRequest.URI = new Uri($"coap://{request.URI.Authority}/{request.URI.AbsolutePath}");
}
break;
default:
Console.WriteLine("Cannot rewrite as we don't recognize the profile");
return;
}
newRequest.Respond += delegate(object sender, ResponseEventArgs e)
{
Response responseN = e.Response;
if (responseN == null)
{
Console.WriteLine("Request timeout");
}
else
{
Console.WriteLine(Utils.ToString(responseN));
Console.WriteLine("Time (ms): " + responseN.RTT);
}
if (endPoint != null)
{
endPoint.Stop();
}
};
newRequest.Send();
}
catch (Exception e) {
Console.WriteLine("Error processing AceAuthz - " + e.ToString());
}
}
