-import { Protocol, ProtocolVersion } from '../../types/UIProtocol';
+import type { IncomingMessage } from 'http';
-import { AbstractUIServer } from './AbstractUIServer';
-import Configuration from '../../utils/Configuration';
-import { IncomingMessage } from 'http';
-import { ServerOptions } from '../../types/ConfigurationData';
-import UIServiceFactory from './ui-services/UIServiceFactory';
-import Utils from '../../utils/Utils';
import WebSocket from 'ws';
+
+import type { ServerOptions } from '../../types/ConfigurationData';
+import { WebSocketCloseEventStatusCode } from '../../types/WebSocket';
+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';
+
+const moduleName = 'UIWebSocketServer';
export default class UIWebSocketServer extends AbstractUIServer {
public constructor(options?: ServerOptions) {
public start(): void {
this.server.on('connection', (socket: WebSocket, request: IncomingMessage): void => {
- const protocolIndex = socket.protocol.indexOf(Protocol.UI);
- const version = socket.protocol.substring(
- protocolIndex + Protocol.UI.length
- ) as ProtocolVersion;
+ const [protocol, version] = UIServiceUtils.getProtocolAndVersion(socket.protocol);
+ if (UIServiceUtils.isProtocolAndVersionSupported(protocol, version) === false) {
+ logger.error(
+ `${this.logPrefix(
+ moduleName,
+ 'start.server.onconnection'
+ )} Unsupported UI protocol version: '${protocol}${version}'`
+ );
+ socket.close(WebSocketCloseEventStatusCode.CLOSE_PROTOCOL_ERROR);
+ }
if (!this.uiServices.has(version)) {
this.uiServices.set(version, UIServiceFactory.getUIServiceImplementation(version, this));
}
// FIXME: check connection validity
- socket.on('message', (messageData) => {
+ socket.on('message', (rawData) => {
this.uiServices
.get(version)
- .messageHandler(messageData)
+ .requestHandler(rawData)
.catch(() => {
- logger.error(`${this.logPrefix()} Error while handling message data: %j`, messageData);
+ /* Error caught by AbstractUIService */
});
});
socket.on('error', (error) => {
- logger.error(`${this.logPrefix()} Error on WebSocket: %j`, error);
+ logger.error(
+ `${this.logPrefix(moduleName, 'start.socket.onerror')} Error on WebSocket:`,
+ error
+ );
});
});
}
public stop(): void {
- this.server.close();
+ this.chargingStations.clear();
+ }
+
+ public sendRequest(request: string): void {
+ this.broadcastToClients(request);
}
- public sendResponse(message: string): void {
- this.broadcastToClients(message);
+ public sendResponse(response: string): void {
+ // TODO: send response only to the client that sent the request
+ this.broadcastToClients(response);
}
- public logPrefix(): string {
- return Utils.logPrefix(' UI WebSocket Server:');
+ public logPrefix(modName?: string, methodName?: string, prefixSuffix?: string): string {
+ const logMsgPrefix = prefixSuffix
+ ? `UI WebSocket Server ${prefixSuffix}`
+ : 'UI WebSocket Server';
+ const logMsg =
+ modName && methodName ? ` ${logMsgPrefix} | ${modName}.${methodName}:` : ` ${logMsgPrefix} |`;
+ return Utils.logPrefix(logMsg);
}
private broadcastToClients(message: string): void {