refactor(simulator): factor out data transfer response

[e-mobility-charging-stations-simulator.git] / src / charging-station / ui-server / AbstractUIServer.ts

diff --git a/src/charging-station/ui-server/AbstractUIServer.ts b/src/charging-station/ui-server/AbstractUIServer.ts
index 75f6e8a89c0e2dcd90438e4ba56070dd1165ba47..643b18831f2010c525844ccd5085f1a1a3a20ca8 100644 (file)
--- a/src/charging-station/ui-server/AbstractUIServer.ts
+++ b/src/charging-station/ui-server/AbstractUIServer.ts
@@ -1,25 +1,26 @@
-import { type IncomingMessage, Server, type ServerResponse } from 'http';
+import { type IncomingMessage, Server, type ServerResponse } from 'node:http';
 
 import type { WebSocket } from 'ws';
 
-import type { ChargingStationData } from '../../types/ChargingStationWorker';
-import type { UIServerConfiguration } from '../../types/ConfigurationData';
+import type { AbstractUIService } from './ui-services/AbstractUIService';
+import { UIServiceFactory } from './ui-services/UIServiceFactory';
+import { BaseError } from '../../exception';
 import {
   AuthenticationType,
-  ProcedureName,
-  ProtocolRequest,
-  ProtocolResponse,
-  ProtocolVersion,
-  RequestPayload,
-  ResponsePayload,
-} from '../../types/UIProtocol';
-import type AbstractUIService from './ui-services/AbstractUIService';
-import UIServiceFactory from './ui-services/UIServiceFactory';
+  type ChargingStationData,
+  type ProcedureName,
+  type ProtocolRequest,
+  type ProtocolResponse,
+  type ProtocolVersion,
+  type RequestPayload,
+  type ResponsePayload,
+  type UIServerConfiguration,
+} from '../../types';
 
 export abstract class AbstractUIServer {
   public readonly chargingStations: Map<string, ChargingStationData>;
-  protected httpServer: Server;
-  protected responseHandlers: Map<string, ServerResponse | WebSocket>;
+  protected readonly httpServer: Server;
+  protected readonly responseHandlers: Map<string, ServerResponse | WebSocket>;
   protected readonly uiServices: Map<ProtocolVersion, AbstractUIService>;
 
   public constructor(protected readonly uiServerConfiguration: UIServerConfiguration) {
@@ -45,20 +46,36 @@ export abstract class AbstractUIServer {
     this.chargingStations.clear();
   }
 
+  protected startHttpServer(): void {
+    if (this.httpServer.listening === false) {
+      this.httpServer.listen(this.uiServerConfiguration.options);
+    }
+  }
+
   protected registerProtocolVersionUIService(version: ProtocolVersion): void {
     if (this.uiServices.has(version) === false) {
       this.uiServices.set(version, UIServiceFactory.getUIServiceImplementation(version, this));
     }
   }
 
-  protected isBasicAuthEnabled(): boolean {
+  protected authenticate(req: IncomingMessage, next: (err?: Error) => void): void {
+    if (this.isBasicAuthEnabled() === true) {
+      if (this.isValidBasicAuth(req) === false) {
+        next(new BaseError('Unauthorized'));
+      }
+      next();
+    }
+    next();
+  }
+
+  private isBasicAuthEnabled(): boolean {
     return (
       this.uiServerConfiguration.authentication?.enabled === true &&
       this.uiServerConfiguration.authentication?.type === AuthenticationType.BASIC_AUTH
     );
   }
 
-  protected isValidBasicAuth(req: IncomingMessage): boolean {
+  private isValidBasicAuth(req: IncomingMessage): boolean {
     const authorizationHeader = req.headers.authorization ?? '';
     const authorizationToken = authorizationHeader.split(/\s+/).pop() ?? '';
     const authentication = Buffer.from(authorizationToken, 'base64').toString();