Golang CoreInstruction.MakeErrAnswer方法代码示例

func ProcResultReturned(handler *coreprocessing.Handler, inIns *coreprocessing.CoreInstruction) *coreprocessing.CoreInstruction {
	var answer *transport.Answer
	var resultChanges *connectionsupport.StateChanges
	var errStr string
	insType := coreprocessing.TypeInstructionSkip
	errCode := 0

	if cmd, exists := inIns.GetCommand(); exists {
		// return status
		resultChanges = &(connectionsupport.StateChanges{
			ChangeType: connectionsupport.StateChangesTypeStatus,
			Status:     connectionsupport.ClientStatusActive})

		if len((*cmd).Params.Task) < 1 {
			errCode = transport.ErrorCodeMethodParamsFormatWrong
			errStr = "Task Id does not exist."
		}
	} else {
		errCode = transport.ErrorCodeCommandFormatWrong
		errStr = "Command is empty."
	}
	if errCode > 0 {
		insType = coreprocessing.TypeInstructionProblem
		answer = inIns.MakeErrAnswer(errCode, errStr)
	} else {
		answer = inIns.MakeOkAnswer(
			fmt.Sprintf("{\"ok\": true, \"status\": %d}", resultChanges.Status))
		insType = coreprocessing.TypeInstructionOk
	}
	result := coreprocessing.NewCoreInstruction(insType)
	result.SetAnswer(answer)
	result.StateChanges = resultChanges
	return result
}

func ProcUpdateStatus(handler *coreprocessing.Handler, inIns *coreprocessing.CoreInstruction) *coreprocessing.CoreInstruction {
	insType := coreprocessing.TypeInstructionSkip
	var answer *transport.Answer
	var result *coreprocessing.CoreInstruction
	var resultChanges *connectionsupport.StateChanges
	var errStr string
	errCode := 0
	if cmd, exists := inIns.GetCommand(); exists {
		// check params.data is number type
		if newStatus, err := strconv.ParseUint(cmd.Params.Data, 10, 16); err == nil {
			changes := connectionsupport.StateChanges{
				ChangeType: connectionsupport.StateChangesTypeStatus,
				Status:     uint16(newStatus)}
			resultChanges = &changes
			answer = inIns.MakeOkAnswer(
				fmt.Sprintf("{\"ok\": true, \"status\": %d}", newStatus))
			insType = coreprocessing.TypeInstructionOk
		} else {
			errCode = transport.ErrorCodeMethodParamsFormatWrong
			errStr = "Status has unexpected type."
		}
	} else {
		errCode = transport.ErrorCodeCommandFormatWrong
		errStr = "Command is empty."
	}
	if errCode > 0 {
		insType = coreprocessing.TypeInstructionProblem
		answer = inIns.MakeErrAnswer(errCode, errStr)
	}
	result = coreprocessing.NewCoreInstruction(insType)
	result.SetAnswer(answer)
	result.StateChanges = resultChanges
	return result
}

// main method for client routing to server methods
func ProcRouteRpc(handler *coreprocessing.Handler, inIns *coreprocessing.CoreInstruction) *coreprocessing.CoreInstruction {
	var answer *transport.Answer
	var errStr string
	var answerData string
	insType := coreprocessing.TypeInstructionSkip
	errCode := 0
	// check methods
	if cmd, exists := inIns.GetCommand(); exists {
		rpcManager := coreprocessing.NewRpcServerManager()
		variants := rpcManager.GetCidVariants((*cmd).Method)
		if len(variants) > 0 {
			var freeCid string
			for _, serverCid := range variants {
				if !handler.StateCheker.ClientBusy(serverCid) {
					freeCid = serverCid
					break
				}
			}
			if len(freeCid) > 0 {
				data := RpcAnswerData{
					Cid:  freeCid,
					Task: handler.TaskIdGenerator.CreateTaskId()}
				// TODO: to debug
				rllogger.Outputf(rllogger.LogInfo, "rpc call: '%s()' -> %s", (*cmd).Method, data)
				if strData, err := json.Marshal(data); err == nil {
					answerData = string(strData)
					rpcManager.ResultDirectionDict.Set(data.Task, (*inIns).Cid)
				} else {
					errCode = transport.ErrorCodeInternalProblem
					errStr = fmt.Sprintf("Error dump %T: '%s'", data, err)
				}
			} else {
				errCode = transport.ErrorCodeAllServerBusy
				errStr = fmt.Sprintf("All server busy for method '%s'.", (*cmd).Method)
			}
		} else {
			errCode = transport.ErrorCodeRemouteMethodNotExists
			errStr = fmt.Sprintf("Method '%s' unregistred or workers lost.", (*cmd).Method)
		}
	} else {
		errCode = transport.ErrorCodeCommandFormatWrong
		errStr = "Command is empty."
	}
	if errCode > 0 {
		insType = coreprocessing.TypeInstructionProblem
		answer = inIns.MakeErrAnswer(errCode, errStr)
	} else {
		insType = coreprocessing.TypeInstructionOk
		answer = inIns.MakeOkAnswer(answerData)
	}
	result := coreprocessing.NewCoreInstruction(insType)
	result.SetAnswer(answer)
	return result
}

// check token by client public key
func ProcAuth(handler *coreprocessing.Handler, inIns *coreprocessing.CoreInstruction) *coreprocessing.CoreInstruction {
	// client sends in params:
	//  - json: {"key": "<key name>"}
	//  - data: "<base64 token string, use JWT protocol (random data inside)>"
	// getting (search on option.KeyDir) client public key by name (in command params)
	handler.Stat.AddOneMsg("auth_request")
	changes := connectionsupport.StateChanges{
		ChangeType: connectionsupport.StateChangesTypeAuth}
	var result *coreprocessing.CoreInstruction
	var resultErr error
	var errCode int
	if cmd, exists := inIns.GetCommand(); exists {
		if authData, err := newAuthData(cmd.Params); err == nil {
			if err := authData.Check(handler.Option); err != nil {
				errCode = transport.ErrorCodeMethodAuthFailed
				resultErr = err
			}
		} else {
			resultErr = err
			errCode = transport.ErrorCodeMethodParamsFormatWrong
		}
	} else {
		errCode = transport.ErrorCodeCommandFormatWrong
		resultErr = errors.New("Not found command in instruction.")
	}
	var answer *transport.Answer
	var insType int
	if errCode > 0 {
		changes.Auth = false
		answer = inIns.MakeErrAnswer(errCode, fmt.Sprint(resultErr))
		insType = coreprocessing.TypeInstructionProblem
		rllogger.Outputf(rllogger.LogWarn, "Failed auth from %s with error: %s", inIns.Cid, resultErr)
	} else {
		changes.Auth = true
		handler.Stat.AddOneMsg("auth_successfull")
		answer = inIns.MakeOkAnswer("{\"auth\":true}")
		insType = coreprocessing.TypeInstructionOk
		rllogger.Outputf(rllogger.LogDebug, "Successfull auth from %s", inIns.Cid)
	}
	result = coreprocessing.NewCoreInstruction(insType)
	result.SetAnswer(answer)
	result.StateChanges = &changes
	return result
}

func ProcRegistration(handler *coreprocessing.Handler, inIns *coreprocessing.CoreInstruction) *coreprocessing.CoreInstruction {
	insType := coreprocessing.TypeInstructionSkip
	var answer *transport.Answer
	var result *coreprocessing.CoreInstruction
	var resultChanges *connectionsupport.StateChanges
	var errStr string
	errCode := 0
	if cmd, exists := inIns.GetCommand(); exists {
		info := ClientInfo{}
		if loadErr := json.Unmarshal([]byte((*cmd).Params.Json), &info); loadErr == nil {
			if (*handler).StateCheker.IsAuth(inIns.Cid) {
				// TODO: need implimentation for replace current cid to old
				switch info.Group {
				case connectionsupport.GroupConnectionClient:
					{
						changes := connectionsupport.StateChanges{
							ChangeType:            connectionsupport.StateChangesTypeGroup,
							ConnectionClientGroup: connectionsupport.GroupConnectionClient}
						resultChanges = &changes
						answer = inIns.MakeOkAnswer(
							fmt.Sprintf("{\"ok\": true, \"cid\": \"%s\"}", inIns.Cid))
					}
				case connectionsupport.GroupConnectionServer:
					{
						dict := coreprocessing.NewMethodInstructionDict()
						methodsCount := dict.RegisterClientMethods(info.Methods...)
						rpcManager := coreprocessing.NewRpcServerManager()
						rpcManager.Append(inIns.Cid, &(info.Methods))
						answer = inIns.MakeOkAnswer(
							fmt.Sprintf(
								"{\"methods_count\": %d, \"ok\": true, \"cid\": \"%s\"}",
								methodsCount, inIns.Cid))

						changes := connectionsupport.StateChanges{
							ChangeType:            connectionsupport.StateChangesTypeGroup,
							ConnectionClientGroup: connectionsupport.GroupConnectionServer}
						resultChanges = &changes
					}
				case connectionsupport.GroupConnectionWsClient:
					{
						// denied
						errCode = transport.ErrorCodeAccessDenied
						errStr = "Web-socket client don't accepted on simple TCP socket."
					}
				default:
					{
						errCode = transport.ErrorCodeUnexpectedValue
						errStr = "Unknown group, see the protocol specification."
					}
				}
			} else {
				errCode = transport.ErrorCodeAccessDenied
				errStr = "Access denied."
			}
		} else {
			errCode = transport.ErrorCodeMethodParamsFormatWrong
			errStr = fmt.Sprint(loadErr)
		}
	} else {
		errCode = transport.ErrorCodeCommandFormatWrong
		errStr = "Command is empty."
	}
	if errCode > 0 {
		insType = coreprocessing.TypeInstructionProblem
		answer = inIns.MakeErrAnswer(errCode, errStr)
	} else {
		insType = coreprocessing.TypeInstructionOk
	}
	result = coreprocessing.NewCoreInstruction(insType)
	result.SetAnswer(answer)
	result.StateChanges = resultChanges
	return result
}