src/charging-station/ui-websocket-services/UIServiceUtils.ts

   1 import { Protocol, ProtocolVersion } from '../../types/UiProtocol';
   2
   3 import { IncomingMessage } from 'http';
   4 import Utils from '../../utils/Utils';
   5 import logger from '../../utils/Logger';
   6
   7 export class UIServiceUtils {
   8   public static handleProtocols = (protocols: Set<string>, request: IncomingMessage): string | false => {
   9     let protocolIndex: number;
  10     let protocol: Protocol;
  11     let version: ProtocolVersion;
  12     for (const fullProtocol of protocols) {
  13       protocolIndex = fullProtocol.indexOf(Protocol.UI);
  14       protocol = fullProtocol.substring(protocolIndex, protocolIndex + Protocol.UI.length) as Protocol;
  15       version = fullProtocol.substring(protocolIndex + Protocol.UI.length) as ProtocolVersion;
  16       if (Object.values(Protocol).includes(protocol) && Object.values(ProtocolVersion).includes(version)) {
  17         return fullProtocol;
  18       }
  19     }
  20     logger.error(`${Utils.logPrefix(' UI WebSocket Server:')} Unsupported protocol: ${protocol} or protocol version: ${version}`);
  21     return false;
  22   };
  23 }