+ protected async sendMessage (
+ chargingStation: ChargingStation,
+ messageId: string,
+ messagePayload: JsonType,
+ commandName: RequestCommand,
+ params?: RequestParams
+ ): Promise<ResponseType> {
+ params = {
+ ...defaultRequestParams,
+ ...params
+ }
+ try {
+ return await this.internalSendMessage(
+ chargingStation,
+ messageId,
+ messagePayload,
+ MessageType.CALL_MESSAGE,
+ commandName,
+ params
+ )
+ } catch (error) {
+ handleSendMessageError(chargingStation, commandName, error as Error, {
+ throwError: params.throwError
+ })
+ return null
+ }
+ }
+
+ private validateRequestPayload<T extends JsonType>(
+ chargingStation: ChargingStation,
+ commandName: RequestCommand | IncomingRequestCommand,
+ payload: T
+ ): boolean {
+ if (chargingStation.stationInfo?.ocppStrictCompliance === false) {
+ return true
+ }
+ if (!this.payloadValidateFunctions.has(commandName as RequestCommand)) {
+ logger.warn(
+ `${chargingStation.logPrefix()} ${moduleName}.validateRequestPayload: No JSON schema found for command '${commandName}' PDU validation`
+ )
+ return true
+ }
+ const validate = this.payloadValidateFunctions.get(commandName as RequestCommand)
+ payload = clone<T>(payload)
+ OCPPServiceUtils.convertDateToISOString<T>(payload)
+ if (validate?.(payload) === true) {
+ return true
+ }
+ logger.error(
+ `${chargingStation.logPrefix()} ${moduleName}.validateRequestPayload: Command '${commandName}' request PDU is invalid: %j`,
+ validate?.errors
+ )
+ // OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError().
+ throw new OCPPError(
+ OCPPServiceUtils.ajvErrorsToErrorType(validate?.errors),
+ 'Request PDU is invalid',
+ commandName,
+ JSON.stringify(validate?.errors, undefined, 2)
+ )
+ }
+
+ private validateIncomingRequestResponsePayload<T extends JsonType>(
+ chargingStation: ChargingStation,
+ commandName: RequestCommand | IncomingRequestCommand,
+ payload: T
+ ): boolean {
+ if (chargingStation.stationInfo?.ocppStrictCompliance === false) {
+ return true
+ }
+ if (
+ !this.ocppResponseService.incomingRequestResponsePayloadValidateFunctions.has(
+ commandName as IncomingRequestCommand
+ )
+ ) {
+ logger.warn(
+ `${chargingStation.logPrefix()} ${moduleName}.validateIncomingRequestResponsePayload: No JSON schema validation function found for command '${commandName}' PDU validation`
+ )
+ return true
+ }
+ const validate = this.ocppResponseService.incomingRequestResponsePayloadValidateFunctions.get(
+ commandName as IncomingRequestCommand
+ )
+ payload = clone<T>(payload)
+ OCPPServiceUtils.convertDateToISOString<T>(payload)
+ if (validate?.(payload) === true) {
+ return true
+ }
+ logger.error(
+ `${chargingStation.logPrefix()} ${moduleName}.validateIncomingRequestResponsePayload: Command '${commandName}' response PDU is invalid: %j`,
+ validate?.errors
+ )
+ // OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError().
+ throw new OCPPError(
+ OCPPServiceUtils.ajvErrorsToErrorType(validate?.errors),
+ 'Response PDU is invalid',
+ commandName,
+ JSON.stringify(validate?.errors, undefined, 2)
+ )
+ }
+
+ private async internalSendMessage (
+ chargingStation: ChargingStation,
+ messageId: string,
+ messagePayload: JsonType | OCPPError,
+ messageType: MessageType,
+ commandName: RequestCommand | IncomingRequestCommand,
+ params?: RequestParams
+ ): Promise<ResponseType> {
+ params = {
+ ...defaultRequestParams,
+ ...params
+ }
+ if (
+ (chargingStation.inUnknownState() && commandName === RequestCommand.BOOT_NOTIFICATION) ||
+ (chargingStation.stationInfo?.ocppStrictCompliance === false &&
+ chargingStation.inUnknownState()) ||
+ chargingStation.inAcceptedState() ||
+ (chargingStation.inPendingState() &&
+ (params.triggerMessage === true || messageType === MessageType.CALL_RESULT_MESSAGE))
+ ) {