Method doNextAuth

lib/client.js:857–1068

(nextAuth)

    let hasSentAuth = false;
    const doNextAuth = (nextAuth) => {
      if (hasSentAuth)
        return;
      hasSentAuth = true;

      if (nextAuth === false) {
        const err = new Error('All configured authentication methods failed');
        err.level = 'client-authentication';
        this.emit('error', err);
        this.end();
        return;
      }

      if (typeof nextAuth === 'string') {
        // Remain backwards compatible with original `authHandler()` usage,
        // which only supported passing names of next method to try using data
        // from the `connect()` config object

        const type = nextAuth;
        if (authsAllowed.indexOf(type) === -1)
          return skipAuth(`Authentication method not allowed: ${type}`);

        const username = this.config.username;
        switch (type) {
          case 'password':
            nextAuth = { type, username, password: this.config.password };
            break;
          case 'publickey':
            nextAuth = { type, username, key: privateKey };
            break;
          case 'hostbased':
            nextAuth = {
              type,
              username,
              key: privateKey,
              localHostname: this.config.localHostname,
              localUsername: this.config.localUsername,
            };
            break;
          case 'agent':
            nextAuth = {
              type,
              username,
              agentCtx: new AgentContext(this._agent),
            };
            break;
          case 'keyboard-interactive':
            nextAuth = {
              type,
              username,
              prompt: (...args) => this.emit('keyboard-interactive', ...args),
            };
            break;
          case 'none':
            nextAuth = { type, username };
            break;
          default:
            return skipAuth(