CoapResponse ExecuteCoapRequest(CoapRequest coapRequest, PythonDictionary parameters)
{
var clientUid = Convert.ToString(parameters.get("client_uid", null));
var timeout = Convert.ToInt32(parameters.get("timeout", 1000));
if (!string.IsNullOrEmpty(clientUid))
{
ICoapClient coapClient;
lock (_clients)
{
if (!_clients.TryGetValue(clientUid, out coapClient))
{
coapClient = CreateClient(parameters).GetAwaiter().GetResult();
_clients[clientUid] = coapClient;
}
}
try
{
using (var cancellationTokenSource = new CancellationTokenSource(timeout))
{
lock (coapClient)
{
Console.WriteLine("SENDING COAP REQUEST");
return(coapClient.RequestAsync(coapRequest, cancellationTokenSource.Token).GetAwaiter().GetResult());
}
}
}
catch
{
Console.WriteLine("CLOSING EXISTING COAP CLIENT");
coapClient.Dispose();
lock (_clients)
{
_clients.Remove(clientUid);
}
throw;
}
}
CoapResponse coapResponse;
using (var coapClient = CreateClient(parameters).GetAwaiter().GetResult())
{
using (var cancellationTokenSource = new CancellationTokenSource(timeout))
{
Console.WriteLine("SENDING COAP REQUEST");
coapResponse = coapClient.RequestAsync(coapRequest, cancellationTokenSource.Token).GetAwaiter().GetResult();
}
Console.WriteLine("CLOSING COAP CLIENT");
}
return(coapResponse);
}
CoapRequest CreateRequest(PythonDictionary parameters)
{
var method = Convert.ToString(parameters.get("method", "get"));
var path = Convert.ToString(parameters.get("path", string.Empty));
var payload = parameters.get("payload", Array.Empty <byte>());
return(new CoapRequestBuilder()
.WithMethod((CoapRequestMethod)Enum.Parse(typeof(CoapRequestMethod), method, true))
.WithPath(path)
.WithPayload(PythonConvert.ToPayload(payload))
.Build());
}
public RegisterArgument(PythonBoss pyBoss, Context context, PythonDictionary spec, Process process, Arguments parent, string namePrefix)
{
NamePrefix = namePrefix;
this.process = process;
// Parse the spec for this argument
// regspec: [{"name": "socket",
// "register": "rcx",
// "type": None,
// "fuzz": NOFUZZ},]
Register = ((string)spec.get("register")).ToLower();
Fuzz = (bool)spec.get("fuzz");
Name = (string)spec.get("name");
_argumentType = (object)spec.get("type");
if (spec.ContainsKey("type_args"))
{
_typeArgs = spec.get("type_args");
}
// Validate required fields
if (Name == null)
{
throw new Exception("ERROR: Argument specification must include 'name' attribute. Failed when parsing name prefix '" + namePrefix + "'.");
}
else if (Fuzz == null)
{
throw new Exception("ERROR: Argument specification must include 'fuzz' attribute. Failed when parsing type '" + namePrefix + Name + "'.");
}
this.process = process;
_pyBoss = pyBoss;
_parent = parent;
// Read the data
var tmpData = context.GetMember(Register);
if (tmpData is UInt32)
{
Data = BitConverter.GetBytes((UInt32)tmpData);
}
else if (tmpData is UInt64)
{
Data = BitConverter.GetBytes((UInt64)tmpData);
}
else
{
throw new Exception("Register argument type definition problem. The register must be of type 'int' or 'long'. The is likely an engine bug. Argument name: " + Name + ". The unsupported register type is: " + tmpData.ToString());
}
Size = Data.Length;
PointerTarget = null;
}
public void register_panel(PythonDictionary panel_definition)
{
if (panel_definition is null)
{
throw new ArgumentNullException(nameof(panel_definition));
}
_appService.RegisterPanel(new AppPanelDefinition
{
Uid = panel_definition.get("uid", null) as string,
PositionIndex = (int)panel_definition.get("position_index", 0),
ViewSource = (string)panel_definition.get("view_source", null)
});
}
private bool ValidateUser(PythonDictionary context)
{
var handlerPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Web", "authorization_handler.py");
if (!File.Exists(handlerPath))
{
return(false);
}
var code = File.ReadAllText(handlerPath);
var scriptEngine = IronPython.Hosting.Python.CreateEngine();
//scriptEngine.Runtime.IO.SetOutput(new PythonIOStream(_logger.), Encoding.UTF8);
var scriptScope = scriptEngine.CreateScope();
var scriptSource = scriptScope.Engine.CreateScriptSourceFromString(code, SourceCodeKind.File);
var compiledCode = scriptSource.Compile();
compiledCode.Execute(scriptScope);
var function = scriptScope.Engine.Operations.GetMember <PythonFunction>(scriptScope, "handle_authenticate");
scriptScope.Engine.Operations.Invoke(function, context);
return(context.get("is_authenticated", false) as bool? == true);
}
public void publish(PythonDictionary parameters)
{
if (parameters == null) throw new ArgumentNullException(nameof(parameters));
var topic = Convert.ToString(parameters.get("topic"));
var payload = parameters.get("payload", new byte[0]);
var qos = Convert.ToInt32(parameters.get("qos", 0));
var retain = Convert.ToBoolean(parameters.get("retain", false));
_mqttService.Publish(new MqttPublishParameters
{
Topic = topic,
Payload = ConvertPayload(payload),
QualityOfServiceLevel = (MqttQualityOfServiceLevel)qos,
Retain = retain
});
}
private void Publish(PythonDictionary parameters)
{
try
{
var applicationMessageBuilder = new MqttApplicationMessageBuilder()
.WithTopic((string)parameters.get("topic", null))
.WithRetainFlag((bool)parameters.get("retain", false))
.WithQualityOfServiceLevel((MqttQualityOfServiceLevel)(int)parameters.get("qos", 0));
var payload = parameters.get("payload", null);
byte[] binaryPayload;
if (payload == null)
{
binaryPayload = new byte[0];
}
else if (payload is string stringPayload)
{
binaryPayload = Encoding.UTF8.GetBytes(stringPayload);
}
else if (payload is ByteArray byteArray)
{
binaryPayload = byteArray.ToArray();
}
else if (payload is IEnumerable <int> intArray)
{
binaryPayload = intArray.Select(Convert.ToByte).ToArray();
}
else
{
throw new NotSupportedException("Payload type not supported.");
}
applicationMessageBuilder = applicationMessageBuilder
.WithPayload(binaryPayload);
var applicationMessage = applicationMessageBuilder.Build();
_mqttServer.PublishAsync(applicationMessage).GetAwaiter().GetResult();
}
catch (Exception exception)
{
_logger.LogError(exception, "Error while publishing application message from server.");
}
}
async Task <ICoapClient> CreateClient(PythonDictionary parameters)
{
var host = Convert.ToString(parameters.get("host", string.Empty));
var port = Convert.ToInt32(parameters.get("port", 5684));
var protocol = Convert.ToString(parameters.get("protocol", "dtls"));
var identity = Convert.ToString(parameters.get("identity", string.Empty));
var key = Convert.ToString(parameters.get("key", string.Empty));
var timeout = Convert.ToInt32(parameters.get("timeout", 5000));
var connectOptionsBuilder = new CoapClientConnectOptionsBuilder()
.WithHost(host)
.WithPort(port);
if (protocol == "dtls")
{
connectOptionsBuilder.WithDtlsTransportLayer(o => o.WithPreSharedKey(identity, key));
}
var connectOptions = connectOptionsBuilder.Build();
var coapClient = new CoapFactory().CreateClient();
using (var cancellationTokenSource = new CancellationTokenSource(timeout))
{
await coapClient.ConnectAsync(connectOptions, cancellationTokenSource.Token).ConfigureAwait(false);
}
return(coapClient);
}
private static HttpRequestMessage CreateRequest(PythonDictionary parameters)
{
var uri = Convert.ToString(parameters.get("uri"));
var method = Convert.ToString(parameters.get("method", "get"));
var headers = (PythonDictionary)parameters.get("headers", new PythonDictionary());
var request = new HttpRequestMessage
{
Method = new HttpMethod(method),
RequestUri = new Uri(uri, UriKind.Absolute)
};
foreach (var header in headers)
{
var headerName = Convert.ToString(header.Key, CultureInfo.InvariantCulture);
var headerValue = Convert.ToString(header.Value, CultureInfo.InvariantCulture);
request.Headers.TryAddWithoutValidation(headerName, headerValue);
}
return(request);
}
private static LaunchParamters ParseLaunchParameters(PythonDictionary pythonDictionary)
{
var launchParameters = new LaunchParamters
{
FileName = Convert.ToString(pythonDictionary.get("file_name", null)),
Timeout = Convert.ToInt32(pythonDictionary.get("timeout", 60000))
};
var arguments = pythonDictionary.get("arguments", null);
if (arguments is string argumentsText)
{
launchParameters.Arguments.Add(argumentsText);
}
else if (arguments is List argumentsList)
{
foreach (var argument in argumentsList)
{
launchParameters.Arguments.Add(Convert.ToString(argument));
}
}
return(launchParameters);
}
public string start_topic_import(string uid, PythonDictionary parameters)
{
if (parameters == null) throw new ArgumentNullException(nameof(parameters));
var topicImportParameters = new MqttImportTopicParameters
{
Server = Convert.ToString(parameters.get("server")),
Port = Convert.ToInt32(parameters.get("port", 1883)),
UseTls = Convert.ToBoolean(parameters.get("tls", false)),
Username = Convert.ToString(parameters.get("username")),
Password = Convert.ToString(parameters.get("password")),
ClientId = Convert.ToString(parameters.get("client_id", Guid.NewGuid().ToString("N"))),
Topic = Convert.ToString(parameters.get("topic")),
QualityOfServiceLevel = (MqttQualityOfServiceLevel)Convert.ToInt32(parameters.get("qos"))
};
return _mqttService.StartTopicImport(uid, topicImportParameters);
}
public string call(string macroName, PythonDictionary parameters = null)
{
var macro = _context.Macros.FirstOrDefault(o => o.Name == macroName);
var script = macro.Script;
if (parameters != null)
{
var macroParameters = new MacroScriptParameters();
foreach (var k in parameters.keys())
{
macroParameters.SetParameter((string)k, (string)parameters.get((string)k));
}
script = macroParameters.ReplaceParameters(macro);
}
var result = _runner.RunScript(script, _ledger, _context);
return(result);
}
public PythonDictionary send(PythonDictionary parameters)
{
if (parameters == null)
{
throw new ArgumentNullException(nameof(parameters));
}
try
{
using (var httpClient = new HttpClient())
using (var request = CreateRequest(parameters))
{
var response = httpClient.SendAsync(request).GetAwaiter().GetResult();
var content = response.Content.ReadAsByteArrayAsync().GetAwaiter().GetResult();
var result = new PythonDictionary
{
["type"] = ControlType.Success,
["status_code"] = (int)response.StatusCode
};
var responseContentType = Convert.ToString(parameters.get("response_content_type", "text"));
if (responseContentType == "raw")
{
var rawContent = new List();
foreach (var contentByte in content)
{
rawContent.Add(contentByte);
}
result["content"] = rawContent;
}
else if (responseContentType == "text")
{
result["content"] = Encoding.UTF8.GetString(content);
}
else if (responseContentType == "json")
{
var jsonString = Encoding.UTF8.GetString(content);
if (!string.IsNullOrEmpty(jsonString))
{
try
{
var json = JObject.Parse(jsonString);
var convertedJson = PythonConvert.ToPython(json);
result["content"] = convertedJson;
}
catch (Exception exception)
{
return(new ExceptionPythonModel(exception).ConvertToPythonDictionary());
}
}
}
return(result);
}
}
catch (Exception exception)
{
return(new ExceptionPythonModel(exception).ConvertToPythonDictionary());
}
}
public Argument(PythonBoss pyBoss, long address, PythonDictionary spec, Process process, int depth, Arguments parent, string namePrefix)
{
Address = address;
this.process = process;
_pyBoss = pyBoss;
_parent = parent;
NamePrefix = namePrefix;
// Parse the spec for this argument
// stackspec: [{"name": "socket",
// "size": 4,
// "type": None,
// "fuzz": NOFUZZ,
// "type_args": None},]
Fuzz = (bool)spec.get("fuzz");
Name = (string)spec.get("name");
_argumentType = (object)spec.get("type");
if ( spec.ContainsKey("type_args") )
{
_typeArgs = spec.get("type_args");
}
// Validate required fields
if (Name == null)
throw new Exception("ERROR: Argument specification must include 'name' attribute. Failed when parsing name prefix '" + namePrefix + "'.");
else if (Fuzz == null)
throw new Exception("ERROR: Argument specification must include 'fuzz' attribute. Failed when parsing type '" + namePrefix + Name + "'.");
else if (spec.get("size") == null)
throw new Exception("ERROR: Argument specification must include 'size' attribute. Failed when parsing type '" + namePrefix + Name + "'.");
if (spec.get("size") is string)
{
object sizeArgument = null;
if (parent.TryGetMemberSearchUp((string)spec.get("size"), out sizeArgument))
Size = ((Argument)sizeArgument).ToInt();
else
throw new Exception("ERROR: Unable to load size for type '" + Name + "' from parent member named '" + (string)spec.get("size") + "'. Please make sure this field exists in the parent.");
}
else if (spec.get("size") is int)
{
Size = (int)spec.get("size");
}
else
{
throw new Exception("ERROR: Unable to load size for type '" + Name + "'. The size must be of type 'int' or type 'string'. Size is type: '" + spec.get("size").ToString() + "'" );
}
// Read the data
try
{
Data = MemoryFunctions.ReadMemory(process.ProcessDotNet, address, (uint)Size);
}
catch (Exception e)
{
Data = null;
}
PointerTarget = null;
}
public WirehomeDictionary publish_external(PythonDictionary parameters)
{
var server = Convert.ToString(parameters.get("server"));
var port = Convert.ToInt32(parameters.get("port", 1883));
var username = Convert.ToString(parameters.get("username"));
var password = Convert.ToString(parameters.get("password"));
var clientId = Convert.ToString(parameters.get("client_id", Guid.NewGuid().ToString("N")));
var topic = Convert.ToString(parameters.get("topic"));
var qos = Convert.ToInt32(parameters.get("qos", 0));
var retain = Convert.ToBoolean(parameters.get("retain", false));
var tls = Convert.ToBoolean(parameters.get("tls", false));
var timeout = Convert.ToInt32(parameters.get("timeout", 5000));
var payload = parameters.get("payload", null);
var mqttClient = new MqttFactory().CreateMqttClient();
try
{
var options = new MqttClientOptionsBuilder()
.WithTcpServer(server, port)
.WithCredentials(username, password)
.WithClientId(clientId)
.WithCommunicationTimeout(TimeSpan.FromMilliseconds(timeout))
.WithTls(new MqttClientOptionsBuilderTlsParameters
{
UseTls = tls
})
.Build();
mqttClient.ConnectAsync(options).GetAwaiter().GetResult();
var message = new MqttApplicationMessageBuilder()
.WithTopic(topic)
.WithPayload(ConvertPayload(payload))
.WithQualityOfServiceLevel((MqttQualityOfServiceLevel)qos)
.WithRetainFlag(retain)
.Build();
mqttClient.PublishAsync(message).GetAwaiter().GetResult();
return(new WirehomeDictionary().WithType("success"));
}
catch (MqttConnectingFailedException)
{
return(new WirehomeDictionary().WithType("exception.connecting_failed"));
}
catch (Exception exception)
{
return(new ExceptionPythonModel(exception).ConvertToPythonDictionary());
}
finally
{
mqttClient?.DisconnectAsync().GetAwaiter().GetResult();
mqttClient?.Dispose();
}
}
public Argument(PythonBoss pyBoss, long address, PythonDictionary spec, Process process, int depth, Arguments parent, string namePrefix)
{
Address = address;
this.process = process;
_pyBoss = pyBoss;
_parent = parent;
NamePrefix = namePrefix;
// Parse the spec for this argument
// stackspec: [{"name": "socket",
// "size": 4,
// "type": None,
// "fuzz": NOFUZZ,
// "type_args": None},]
Fuzz = (bool)spec.get("fuzz");
Name = (string)spec.get("name");
_argumentType = (object)spec.get("type");
if (spec.ContainsKey("type_args"))
{
_typeArgs = spec.get("type_args");
}
// Validate required fields
if (Name == null)
{
throw new Exception("ERROR: Argument specification must include 'name' attribute. Failed when parsing name prefix '" + namePrefix + "'.");
}
else if (Fuzz == null)
{
throw new Exception("ERROR: Argument specification must include 'fuzz' attribute. Failed when parsing type '" + namePrefix + Name + "'.");
}
else if (spec.get("size") == null)
{
throw new Exception("ERROR: Argument specification must include 'size' attribute. Failed when parsing type '" + namePrefix + Name + "'.");
}
if (spec.get("size") is string)
{
object sizeArgument = null;
if (parent.TryGetMemberSearchUp((string)spec.get("size"), out sizeArgument))
{
Size = ((Argument)sizeArgument).ToInt();
}
else
{
throw new Exception("ERROR: Unable to load size for type '" + Name + "' from parent member named '" + (string)spec.get("size") + "'. Please make sure this field exists in the parent.");
}
}
else if (spec.get("size") is int)
{
Size = (int)spec.get("size");
}
else
{
throw new Exception("ERROR: Unable to load size for type '" + Name + "'. The size must be of type 'int' or type 'string'. Size is type: '" + spec.get("size").ToString() + "'");
}
// Read the data
try
{
Data = MemoryFunctions.ReadMemory(process.ProcessDotNet, address, (uint)Size);
}
catch (Exception e)
{
Data = null;
}
PointerTarget = null;
}
protected override async Task <AuthenticateResult> HandleAuthenticateAsync()
{
if (!Request.Headers.ContainsKey(HeaderNames.Authorization))
{
return(AuthenticateResult.NoResult());
}
try
{
var headerValue = Request.Headers[HeaderNames.Authorization];
var parsedHeaderValue = AuthenticationHeaderValue.Parse(Request.Headers[HeaderNames.Authorization]);
var scheme = parsedHeaderValue.Scheme;
var parameter = parsedHeaderValue.Parameter;
string username = null;
string password = null;
if (scheme.Equals("Basic", StringComparison.OrdinalIgnoreCase))
{
var credentialBytes = Convert.FromBase64String(parsedHeaderValue.Parameter);
var credentials = Encoding.UTF8.GetString(credentialBytes).Split(':');
username = credentials[0];
password = credentials[1];
}
var context = new PythonDictionary
{
["header_value"] = headerValue,
["scheme"] = scheme,
["parameter"] = parameter,
["username"] = username,
["password"] = password,
["is_authenticated"] = false
};
if (!ValidateUser(context))
{
return(AuthenticateResult.Fail("Invalid credentials."));
}
var claims = new[]
{
new Claim(ClaimTypes.NameIdentifier, context.get("username") as string ?? string.Empty)
};
var identity = new ClaimsIdentity(claims, Scheme.Name);
var principal = new ClaimsPrincipal(identity);
var ticket = new AuthenticationTicket(principal, Scheme.Name);
return(AuthenticateResult.Success(ticket));
}
catch (Exception exception)
{
_logger.LogWarning("Error while authenticating user.", exception);
return(AuthenticateResult.Fail(exception));
}
finally
{
await Task.CompletedTask;
}
}
public PythonDictionary request(PythonDictionary parameters)
{
if (parameters is null)
{
throw new ArgumentNullException(nameof(parameters));
}
try
{
var clientUid = Convert.ToString(parameters.get("client_uid", string.Empty));
var timeout = Convert.ToInt32(parameters.get("timeout", 5000));
var request = CreateRequest(parameters);
CoapResponse response;
if (!string.IsNullOrEmpty(clientUid))
{
ICoapClient coapClient;
lock (_clients)
{
if (!_clients.TryGetValue(clientUid, out coapClient))
{
coapClient = CreateClient(parameters).GetAwaiter().GetResult();
_clients[clientUid] = coapClient;
}
}
try
{
using (var cancellationTokenSource = new CancellationTokenSource(timeout))
{
response = coapClient.RequestAsync(request, cancellationTokenSource.Token).GetAwaiter().GetResult();
}
}
catch
{
coapClient.Dispose();
lock (_clients)
{
_clients.Remove(clientUid);
}
throw;
}
}
else
{
using (var coapClient = CreateClient(parameters).GetAwaiter().GetResult())
{
using (var cancellationTokenSource = new CancellationTokenSource(timeout))
{
response = coapClient.RequestAsync(request, cancellationTokenSource.Token).GetAwaiter().GetResult();
}
}
}
return(new PythonDictionary
{
["type"] = WirehomeMessageType.Success,
["status"] = response.StatusCode.ToString(),
["status_code"] = (int)response.StatusCode,
["payload"] = new Bytes(response.Payload ?? Array.Empty <byte>())
});
}
catch (Exception exception)
{
return(new PythonDictionary
{
["type"] = WirehomeMessageType.Exception,
["message"] = exception.Message
});
}
}