X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2Fui-server%2FUIHttpServer.ts;h=159559df1f4cacb6eebaa1f67b8e6cca66ac030a;hb=be245fdab36274873e0a9651589cebd097548076;hp=152529373d375f033985f571989ed8e31cc63dba;hpb=5e3cb7281de2b6fa8b61a453f964c2f213fefa80;p=e-mobility-charging-stations-simulator.git

diff --git a/src/charging-station/ui-server/UIHttpServer.ts b/src/charging-station/ui-server/UIHttpServer.ts
index 15252937..159559df 100644
--- a/src/charging-station/ui-server/UIHttpServer.ts
+++ b/src/charging-station/ui-server/UIHttpServer.ts
@@ -1,47 +1,39 @@
-import { IncomingMessage, RequestListener, Server, ServerResponse } from 'http';
+import type { IncomingMessage, RequestListener, ServerResponse } from 'node:http';
 
 import { StatusCodes } from 'http-status-codes';
 
-import BaseError from '../../exception/BaseError';
-import type { ServerOptions } from '../../types/ConfigurationData';
+import { AbstractUIServer } from './AbstractUIServer';
+import { UIServerUtils } from './UIServerUtils';
+import { BaseError } from '../../exception';
 import {
-  ProcedureName,
-  Protocol,
-  ProtocolRequest,
-  ProtocolResponse,
-  ProtocolVersion,
-  RequestPayload,
+  type ProcedureName,
+  type Protocol,
+  type ProtocolRequest,
+  type ProtocolResponse,
+  type ProtocolVersion,
+  type RequestPayload,
   ResponseStatus,
-} from '../../types/UIProtocol';
-import Configuration from '../../utils/Configuration';
-import logger from '../../utils/Logger';
-import Utils from '../../utils/Utils';
-import { AbstractUIServer } from './AbstractUIServer';
-import UIServiceFactory from './ui-services/UIServiceFactory';
-import { UIServiceUtils } from './ui-services/UIServiceUtils';
+  type UIServerConfiguration,
+} from '../../types';
+import { Constants, Utils, logger } from '../../utils';
 
 const moduleName = 'UIHttpServer';
 
-type responseHandler = { procedureName: ProcedureName; res: ServerResponse };
-
-export default class UIHttpServer extends AbstractUIServer {
-  private readonly responseHandlers: Map<string, responseHandler>;
+enum HttpMethods {
+  GET = 'GET',
+  PUT = 'PUT',
+  POST = 'POST',
+  PATCH = 'PATCH',
+}
 
-  public constructor(private options?: ServerOptions) {
-    super();
-    this.server = new Server(this.requestListener.bind(this) as RequestListener);
-    this.responseHandlers = new Map<string, responseHandler>();
+export class UIHttpServer extends AbstractUIServer {
+  public constructor(protected readonly uiServerConfiguration: UIServerConfiguration) {
+    super(uiServerConfiguration);
   }
 
   public start(): void {
-    if ((this.server as Server).listening === false) {
-      (this.server as Server).listen(this.options ?? Configuration.getUIServer().options);
-    }
-  }
-
-  public stop(): void {
-    this.chargingStations.clear();
-    this.responseHandlers.clear();
+    this.httpServer.on('request', this.requestListener.bind(this) as RequestListener);
+    this.startHttpServer();
   }
 
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
@@ -51,28 +43,51 @@ export default class UIHttpServer extends AbstractUIServer {
 
   public sendResponse(response: ProtocolResponse): void {
     const [uuid, payload] = response;
-    const statusCode = this.responseStatusToStatusCode(payload.status);
-    if (this.responseHandlers.has(uuid) === true) {
-      const { res } = this.responseHandlers.get(uuid);
-      res.writeHead(statusCode, { 'Content-Type': 'application/json' });
-      res.write(JSON.stringify(payload));
-      res.end();
-      this.responseHandlers.delete(uuid);
-    } else {
+    try {
+      if (this.hasResponseHandler(uuid) === true) {
+        const res = this.responseHandlers.get(uuid) as ServerResponse;
+        res
+          .writeHead(this.responseStatusToStatusCode(payload.status), {
+            'Content-Type': 'application/json',
+          })
+          .end(JSON.stringify(payload));
+      } else {
+        logger.error(
+          `${this.logPrefix(moduleName, 'sendResponse')} Response for unknown request id: ${uuid}`
+        );
+      }
+    } catch (error) {
       logger.error(
-        `${this.logPrefix(moduleName, 'sendResponse')} Response for unknown request id: ${uuid}`
+        `${this.logPrefix(moduleName, 'sendResponse')} Error at sending response id '${uuid}':`,
+        error
       );
+    } finally {
+      this.responseHandlers.delete(uuid);
     }
   }
 
-  public logPrefix(modName?: string, methodName?: string, prefixSuffix?: string): string {
+  public logPrefix = (modName?: string, methodName?: string, prefixSuffix?: string): string => {
     const logMsgPrefix = prefixSuffix ? `UI HTTP Server ${prefixSuffix}` : 'UI HTTP Server';
     const logMsg =
-      modName && methodName ? ` ${logMsgPrefix} | ${modName}.${methodName}:` : ` ${logMsgPrefix} |`;
+      Utils.isNotEmptyString(modName) && Utils.isNotEmptyString(methodName)
+        ? ` ${logMsgPrefix} | ${modName}.${methodName}:`
+        : ` ${logMsgPrefix} |`;
     return Utils.logPrefix(logMsg);
-  }
+  };
 
   private requestListener(req: IncomingMessage, res: ServerResponse): void {
+    this.authenticate(req, (err) => {
+      if (err) {
+        res
+          .writeHead(StatusCodes.UNAUTHORIZED, {
+            'Content-Type': 'text/plain',
+            'WWW-Authenticate': 'Basic realm=users',
+          })
+          .end(`${StatusCodes.UNAUTHORIZED} Unauthorized`)
+          .destroy();
+        req.destroy();
+      }
+    });
     // Expected request URL pathname: /ui/:version/:procedureName
     const [protocol, version, procedureName] = req.url?.split('/').slice(1) as [
       Protocol,
@@ -80,21 +95,20 @@ export default class UIHttpServer extends AbstractUIServer {
       ProcedureName
     ];
     const uuid = Utils.generateUUID();
-    this.responseHandlers.set(uuid, { procedureName, res });
+    this.responseHandlers.set(uuid, res);
     try {
-      if (UIServiceUtils.isProtocolAndVersionSupported(protocol, version) === false) {
-        throw new BaseError(`Unsupported UI protocol version: '/${protocol}/${version}'`);
+      const fullProtocol = `${protocol}${version}`;
+      if (UIServerUtils.isProtocolAndVersionSupported(fullProtocol) === false) {
+        throw new BaseError(`Unsupported UI protocol version: '${fullProtocol}'`);
       }
+      this.registerProtocolVersionUIService(version);
       req.on('error', (error) => {
         logger.error(
           `${this.logPrefix(moduleName, 'requestListener.req.onerror')} Error on HTTP request:`,
           error
         );
       });
-      if (!this.uiServices.has(version)) {
-        this.uiServices.set(version, UIServiceFactory.getUIServiceImplementation(version, this));
-      }
-      if (req.method === 'POST') {
+      if (req.method === HttpMethods.POST) {
         const bodyBuffer = [];
         req
           .on('data', (chunk) => {
@@ -104,12 +118,19 @@ export default class UIHttpServer extends AbstractUIServer {
             const body = JSON.parse(Buffer.concat(bodyBuffer).toString()) as RequestPayload;
             this.uiServices
               .get(version)
-              .requestHandler(this.buildProtocolRequest(uuid, procedureName, body ?? {}))
-              .catch(() => {
-                this.sendResponse(
-                  this.buildProtocolResponse(uuid, { status: ResponseStatus.FAILURE })
-                );
-              });
+              ?.requestHandler(
+                this.buildProtocolRequest(
+                  uuid,
+                  procedureName,
+                  body ?? Constants.EMPTY_FREEZED_OBJECT
+                )
+              )
+              .then((protocolResponse: ProtocolResponse) => {
+                if (!Utils.isNullOrUndefined(protocolResponse)) {
+                  this.sendResponse(protocolResponse);
+                }
+              })
+              .catch(Constants.EMPTY_FUNCTION);
           });
       } else {
         throw new BaseError(`Unsupported HTTP method: '${req.method}'`);