X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2Fui-server%2FAbstractUIServer.ts;h=133389d60b3cf18e01ad04922332121bbf0d37da;hb=b3d7d65476a4ab586b3ccd188f0bfbe8452aba0e;hp=9a19d39d9a6d29550c614b937f14fd18bcb514e3;hpb=5e3cb7281de2b6fa8b61a453f964c2f213fefa80;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 9a19d39d..133389d6 100644
--- a/src/charging-station/ui-server/AbstractUIServer.ts
+++ b/src/charging-station/ui-server/AbstractUIServer.ts
@@ -1,32 +1,52 @@
-import type { Server as HttpServer } from 'http';
+import { type IncomingMessage, Server, type ServerResponse } from 'node:http';
+import { type Http2Server, createServer } from 'node:http2';
 
-import type WebSocket from 'ws';
+import type { WebSocket } from 'ws';
 
-import type { ChargingStationData } from '../../types/ChargingStationWorker';
-import type {
-  ProcedureName,
-  ProtocolRequest,
-  ProtocolResponse,
+import type { AbstractUIService } from './ui-services/AbstractUIService';
+import { UIServiceFactory } from './ui-services/UIServiceFactory';
+import { BaseError } from '../../exception';
+import {
+  ApplicationProtocolVersion,
+  AuthenticationType,
+  type ChargingStationData,
+  type ProcedureName,
+  type ProtocolRequest,
+  type ProtocolResponse,
   ProtocolVersion,
-  RequestPayload,
-  ResponsePayload,
-} from '../../types/UIProtocol';
-import type AbstractUIService from './ui-services/AbstractUIService';
+  type RequestPayload,
+  type ResponsePayload,
+  type UIServerConfiguration,
+} from '../../types';
 
 export abstract class AbstractUIServer {
   public readonly chargingStations: Map<string, ChargingStationData>;
-  protected server: WebSocket.Server | HttpServer;
+  protected readonly httpServer: Server | Http2Server;
+  protected readonly responseHandlers: Map<string, ServerResponse | WebSocket>;
   protected readonly uiServices: Map<ProtocolVersion, AbstractUIService>;
 
-  public constructor() {
+  public constructor(protected readonly uiServerConfiguration: UIServerConfiguration) {
     this.chargingStations = new Map<string, ChargingStationData>();
+    switch (this.uiServerConfiguration.version) {
+      case ApplicationProtocolVersion.VERSION_11:
+        this.httpServer = new Server();
+        break;
+      case ApplicationProtocolVersion.VERSION_20:
+        this.httpServer = createServer();
+        break;
+      default:
+        throw new BaseError(
+          `Unsupported application protocol version ${this.uiServerConfiguration.version}`,
+        );
+    }
+    this.responseHandlers = new Map<string, ServerResponse | WebSocket>();
     this.uiServices = new Map<ProtocolVersion, AbstractUIService>();
   }
 
   public buildProtocolRequest(
     id: string,
     procedureName: ProcedureName,
-    requestPayload: RequestPayload
+    requestPayload: RequestPayload,
   ): ProtocolRequest {
     return [id, procedureName, requestPayload];
   }
@@ -35,13 +55,70 @@ export abstract class AbstractUIServer {
     return [id, responsePayload];
   }
 
+  public stop(): void {
+    this.chargingStations.clear();
+  }
+
+  public async sendInternalRequest(request: ProtocolRequest): Promise<ProtocolResponse> {
+    const protocolVersion = ProtocolVersion['0.0.1'];
+    this.registerProtocolVersionUIService(protocolVersion);
+    return 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 === 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 BaseError('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: ProtocolRequest): void;
   public abstract sendResponse(response: ProtocolResponse): void;
   public abstract logPrefix(
     moduleName?: string,
     methodName?: string,
-    prefixSuffix?: string
+    prefixSuffix?: string,
   ): string;
 }