Beispiel #1
0
        public void TestArray()
        {
            var tests = new[]
            {
                (float)0,
                (float)50505,
                Single.NaN,
                Single.MaxValue,
                Single.MinValue,
                Single.PositiveInfinity,
                Single.NegativeInfinity,
                Single.Epsilon,
            }.Select(f => MPack.From(f))
            .ToArray();

            var arr   = new MPackArray(tests);
            var bytes = arr.EncodeToBytes();
            var round = MPack.ParseFromBytes(bytes) as MPackArray;

            Assert.IsTrue(round != null);
            Assert.IsTrue(arr.Count == round.Count);
            for (int i = 0; i < arr.Count; i++)
            {
                Assert.AreEqual(arr[i], round[i]);
            }
            Assert.AreEqual(arr, round);
        }
Beispiel #2
0
        public void TestArray()
        {
            var tests = new[]
            {
                (float) 0,
                (float) 50505,
                Single.NaN,
                Single.MaxValue,
                Single.MinValue,
                Single.PositiveInfinity,
                Single.NegativeInfinity,
                Single.Epsilon,
            }.Select(f => MPack.From(f))
            .ToArray();

            var arr = new MPackArray(tests);
            var bytes = arr.EncodeToBytes();
            var round = MPack.ParseFromBytes(bytes) as MPackArray;

            Assert.IsTrue(round != null);
            Assert.IsTrue(arr.Count == round.Count);
            for (int i = 0; i < arr.Count; i++)
            {
                Assert.AreEqual(arr[i], round[i]);
            }
            Assert.AreEqual(arr, round);
        }
Beispiel #3
0
        private MPack Execute(MPack p)
        {
            var map = (MPackMap)p;
            //var responseBody = new RResponseBody();
            RSession sesh = null;
            DateTime start = DateTime.Now;
            string method = null;
            MPackMap result = new MPackMap();
            if (map.ContainsKey(CONST.HDR_ID))
                result[CONST.HDR_ID] = map[CONST.HDR_ID];
            try
            {
                // parse client input packet
                var token = map[CONST.HDR_TOKEN].To<string>();
                var sig = map[CONST.HDR_METHOD].To<string>();
                var parsedSig = RemoteCallHelper.ParseMethodName(sig);
                method = parsedSig.Name;

                sesh = _parent.Sessions.Get(token);
                if (sesh == null)
                    throw new ArgumentException("Specified token is invalid");

                result[CONST.HDR_TOKEN] = MPack.From(token);

                // get method details, parameters, return type, etc
                //sesh = _parent._sessions[token];
                var methodInfo = sesh.Endpoint.Methods.Single(mth => mth.Name == method);
                var methodParams = methodInfo.Parameters;
                var serverArgTypes = methodParams
                    .Select(x => x.ParameterType)
                    .ToArray();
                var serverRetType = methodInfo.ReturnType;

                if (!RemoteCallHelper.CheckMethodSignature(methodInfo.Method, parsedSig))
                    throw new InvalidOperationException("Method signature does not match that of the server's implementation");

                // check if user is authorized to execute this method
                //if (methodInfo.Attributes.FirstOrDefault(a => a is RRequireAuth) != null)
                //    if (!_authenticated && _parent.CredentialValidator != null)
                //        throw new MethodAccessException("This method requires authentication");

                //var role = methodInfo.Attributes.FirstOrDefault(a => a is RRequireRole) as RRequireRole;
                //if (role != null && _parent.CredentialValidator != null)
                //{
                //    if (!_authenticated || !_parent.CredentialValidator.IsInRole(_user, role.RequiredRole))
                //        throw new MethodAccessException(
                //            $"User must be in {role.RequiredRole} role to access this method.");
                //}

                // deserialize the request body
                //var requestBody = ClassifyJson.Deserialize<RRequestBody>(JsonValue.Parse(p.Payload));
                var mpackArgs = map[CONST.HDR_ARGS];
                object[] reconArgs = new object[serverArgTypes.Length];
                List<int> refParams = new List<int>();
                for (int i = 0; i < reconArgs.Length; i++)
                {
                    var mpk = mpackArgs[i];
                    var type = serverArgTypes[i];
                    var byref = methodParams[i].IsOut || type.IsByRef;
                    var streamed = serverArgTypes[i].IsAssignableFrom(typeof(Stream));
                    if (streamed)
                    {
                        reconArgs[i] = new MessageConsumerStream(mpk.To<string>(), _protocol.Buffer, _cancelSource.Token, WritePacket);
                    }
                    else
                    {
                        if (byref)
                            refParams.Add(i);
                        reconArgs[i] = RemoteCallHelper.ParamaterToObject(type, mpk);
                    }
                }

                // validate that we have all the required parameters
                for (int i = 0; i < reconArgs.Length; i++)
                {
                    //if (reconArgs[i] == null && !methodParams[i].IsOptional && !methodParams[i].IsOut)
                    //    throw new ArgumentException("A required method parameter is missing.");
                    if (reconArgs[i] == null && methodParams[i].IsOptional)
                        reconArgs[i] = Type.Missing;
                }

                //var returnValue = methodInfo.Delegate(sesh.Instance, reconArgs);
                var returnValue = methodInfo.Method.Invoke(sesh.Instance, reconArgs);

                if (returnValue != null && !serverRetType.IsInstanceOfType(returnValue))
                    throw new InvalidOperationException("Return value type mismatch");

                // populate ref / out parameters to the response body
                if (refParams.Any())
                {
                    var refoutParams = new MPackArray(Enumerable.Range(0, reconArgs.Length).Select(v => MPack.Null()));
                    for (int i = 0; i < refParams.Count; i++)
                    {
                        var paramIndex = refParams[i];
                        refoutParams[paramIndex] = RemoteCallHelper.ObjectToParamater(reconArgs[paramIndex]);
                    }
                    result[CONST.HDR_ARGS] = refoutParams;
                }

                // set the return value of response body
                if (typeof(Stream).IsAssignableFrom(serverRetType))
                {
                    bool writable = methodInfo.Method.ReturnParameter.GetCustomAttributes(typeof(RWritable)).Any();
                    string tkn = Guid.NewGuid().ToString();
                    var wrappedStream = new MessageProviderStream(tkn, (Stream)returnValue, _protocol.Buffer,
                        WritePacket, _cancelSource.Token, writable);

                    result[CONST.HDR_STATUS] = MPack.From(CONST.STA_STREAM);
                    result[CONST.HDR_VALUE] = MPack.From(tkn);
                }
                else if (serverRetType == typeof(void))
                {
                    result[CONST.HDR_STATUS] = MPack.From(CONST.STA_VOID);
                }
                else if (Attribute.IsDefined(serverRetType ?? typeof(object), typeof(RContractProvider)))
                {
                    result[CONST.HDR_STATUS] = MPack.From(CONST.STA_SERVICE);
                    REndpoint endpoint = _parent.Endpoints.SingleOrDefault(ed => ed.Interface == serverRetType);
                    if (endpoint == null)
                        endpoint = new REndpoint(RandomEx.GetString(20), serverRetType, context => null);
                    // create new session
                    var ses = new RSession(endpoint, returnValue);
                    var policy = new CacheItemPolicy() { SlidingExpiration = _parent.SessionTimeout };
                    _parent.Sessions.Add(ses.Token, ses, policy);
                    if (returnValue is IDisposable)
                    {
                        policy.RemovedCallback = args => ((IDisposable)args.CacheItem.Value).Dispose();
                    }
                    result[CONST.HDR_VALUE] = MPack.From(ses.Token);
                }
                else
                {
                    result[CONST.HDR_STATUS] = MPack.From(CONST.STA_NORMAL);
                    result[CONST.HDR_VALUE] = RemoteCallHelper.ObjectToParamater(returnValue);
                }
            }
            catch (Exception ex)
            {
                string message;
                string type;
                if (ex is TargetInvocationException || ex is AggregateException)
                {
                    type = ex.InnerException.GetType().Name;
                    message = ex.InnerException.Message;
                }
                else
                {
                    type = ex.GetType().Name;
                    message = ex.Message;
                }

                result[CONST.HDR_STATUS] = MPack.From(CONST.STA_ERROR);
                result[CONST.HDR_VALUE] = MPack.From($"({type}){message}");
                result[CONST.HDR_LOCATION] = MPack.From($"{sesh?.Endpoint.Path ?? "[invalid]"}/{method ?? "[invalid]"}()");
            }
            DateTime end = DateTime.Now;
            var time = end - start;
            result[CONST.HDR_TIME] = MPack.From(time.TotalMilliseconds);
            return result;
        }