X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2Fui-server%2FAbstractUIServer.ts;h=596ddb598d78bfb10dca5c076b395e059289ba87;hb=27782dbc3512349e7ff5e9fab9180dd31bf68ffa;hp=65847d85d4f313a92880c99fc6bfcb2f98a3cfbf;hpb=db2336d96424096d5570606680824af180e33c3a;p=e-mobility-charging-stations-simulator.git

diff --git a/src/charging-station/ui-server/AbstractUIServer.ts b/src/charging-station/ui-server/AbstractUIServer.ts
index 65847d85..596ddb59 100644
--- a/src/charging-station/ui-server/AbstractUIServer.ts
+++ b/src/charging-station/ui-server/AbstractUIServer.ts
@@ -1,24 +1,98 @@
-import { Server as HttpServer } from 'http';
+import { type IncomingMessage, Server, type ServerResponse } from 'http';
 
-import WebSocket from 'ws';
+import type { WebSocket } from 'ws';
 
-import { ChargingStationData } from '../../types/ChargingStationWorker';
-import { ProtocolVersion } from '../../types/UIProtocol';
+import type { ChargingStationData } from '../../types/ChargingStationWorker';
+import type { UIServerConfiguration } from '../../types/ConfigurationData';
+import {
+  AuthenticationType,
+  ProcedureName,
+  ProtocolRequest,
+  ProtocolResponse,
+  ProtocolVersion,
+  RequestPayload,
+  ResponsePayload,
+} from '../../types/UIProtocol';
 import type AbstractUIService from './ui-services/AbstractUIService';
+import UIServiceFactory from './ui-services/UIServiceFactory';
 
 export abstract class AbstractUIServer {
   public readonly chargingStations: Map<string, ChargingStationData>;
+  protected readonly httpServer: Server;
+  protected readonly responseHandlers: Map<string, ServerResponse | WebSocket>;
   protected readonly uiServices: Map<ProtocolVersion, AbstractUIService>;
-  protected server: WebSocket.Server | HttpServer;
 
-  public constructor() {
+  public constructor(protected readonly uiServerConfiguration: UIServerConfiguration) {
     this.chargingStations = new Map<string, ChargingStationData>();
+    this.httpServer = new Server();
+    this.responseHandlers = new Map<string, ServerResponse | WebSocket>();
     this.uiServices = new Map<ProtocolVersion, AbstractUIService>();
   }
 
+  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.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 authenticate(req: IncomingMessage, next: (err?: Error) => void): void {
+    if (this.isBasicAuthEnabled() === true) {
+      if (this.isValidBasicAuth(req) === false) {
+        next(new Error('Unauthorized'));
+      }
+      next();
+    }
+    next();
+  }
+
+  private isBasicAuthEnabled(): boolean {
+    return (
+      this.uiServerConfiguration.authentication?.enabled === true &&
+      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 stop(): void;
-  public abstract sendRequest(request: string): void;
-  public abstract sendResponse(response: string): void;
-  public abstract logPrefix(modName?: string, methodName?: string): string;
+  public abstract sendRequest(request: ProtocolRequest): void;
+  public abstract sendResponse(response: ProtocolResponse): void;
+  public abstract logPrefix(
+    moduleName?: string,
+    methodName?: string,
+    prefixSuffix?: string
+  ): string;
 }