+ public buildProtocolRequest (
+ id: string,
+ procedureName: ProcedureName,
+ requestPayload: RequestPayload
+ ): ProtocolRequest {
+ return [id, procedureName, requestPayload]
+ }
+
+ public buildProtocolResponse (id: string, responsePayload: ResponsePayload): ProtocolResponse {
+ return [id, responsePayload]
+ }
+
+ public stop (): void {
+ this.stopHttpServer()
+ this.chargingStations.clear()
+ }
+
+ public async sendInternalRequest (request: ProtocolRequest): Promise<ProtocolResponse> {
+ const protocolVersion = ProtocolVersion['0.0.1']
+ this.registerProtocolVersionUIService(protocolVersion)
+ return await (this.uiServices
+ .get(protocolVersion)
+ ?.requestHandler(request) as Promise<ProtocolResponse>)
+ }
+
+ public hasResponseHandler (id: string): boolean {
+ return this.responseHandlers.has(id)
+ }
+
+ protected startHttpServer (): void {
+ if (!this.httpServer.listening) {
+ this.httpServer.listen(this.uiServerConfiguration.options)
+ }
+ }
+
+ protected registerProtocolVersionUIService (version: ProtocolVersion): void {
+ if (!this.uiServices.has(version)) {
+ this.uiServices.set(version, UIServiceFactory.getUIServiceImplementation(version, this))
+ }
+ }
+
+ protected authenticate (req: IncomingMessage, next: (err?: Error) => void): void {
+ if (this.isBasicAuthEnabled()) {
+ if (!this.isValidBasicAuth(req)) {
+ next(new BaseError('Unauthorized'))
+ }
+ next()
+ }
+ next()
+ }
+
+ private stopHttpServer (): void {
+ if (this.httpServer.listening) {
+ this.httpServer.close()
+ }
+ }
+
+ private isBasicAuthEnabled (): boolean {
+ return (
+ this.uiServerConfiguration.authentication?.enabled === true &&
+ // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+ this.uiServerConfiguration.authentication.type === AuthenticationType.BASIC_AUTH
+ )
+ }
+
+ private isValidBasicAuth (req: IncomingMessage): boolean {
+ const authorizationHeader = req.headers.authorization ?? ''
+ const authorizationToken = authorizationHeader.split(/\s+/).pop() ?? ''
+ const authentication = Buffer.from(authorizationToken, 'base64').toString()
+ const authenticationParts = authentication.split(/:/)
+ const username = authenticationParts.shift()
+ const password = authenticationParts.join(':')
+ return (
+ this.uiServerConfiguration.authentication?.username === username &&
+ this.uiServerConfiguration.authentication?.password === password
+ )
+ }
+
+ public abstract start (): void
+ public abstract sendRequest (request: ProtocolRequest): void
+ public abstract sendResponse (response: ProtocolResponse): void
+ public abstract logPrefix (moduleName?: string, methodName?: string, prefixSuffix?: string): string