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Current File : //home/deltalab/PMS/sms-connector/node_modules/mongodb/src/cmap/auth/plain.ts

import { Binary } from '../../bson';
import { AuthProvider, AuthContext } from './auth_provider';
import { MongoMissingCredentialsError } from '../../error';
import { Callback, ns } from '../../utils';

export class Plain extends AuthProvider {
  auth(authContext: AuthContext, callback: Callback): void {
    const { connection, credentials } = authContext;
    if (!credentials) {
      return callback(new MongoMissingCredentialsError('AuthContext must provide credentials.'));
    }
    const username = credentials.username;
    const password = credentials.password;

    const payload = new Binary(Buffer.from(`\x00${username}\x00${password}`));
    const command = {
      saslStart: 1,
      mechanism: 'PLAIN',
      payload: payload,
      autoAuthorize: 1
    };

    connection.command(ns('$external.$cmd'), command, undefined, callback);
  }
}