XOAuth2 for Gmail错误凭据无效

我使用passport.js作为我的身份验证服务从google获取oauth2访问令牌(https://github.com/jaredhanson/passport-google-oauth#usage-of-oauth-20),我可以获取访问令牌范围:https://mail.google.com/,https : //www.googleapis.com/auth/userinfo.email.但是,当我尝试连接到imap(使用https://github.com/mscdex/node-imap)时,我收到错误:"凭证无效".

以下是我使用的代码段代码:

var authData = [
"user=" + ('test@gmail.com' || ""),
"auth=Bearer " + 'ya29.LgBFSGtnPtfHLxkAAADjgeEFpUC9nD31kP5BqLKuH1MO3e_TRSdRTjEVKqQ-GQ',
"",
""];
var xoauth2_token = new Buffer(authData.join("\x01"), "utf-8").toString("base64");

var imap = new Imap({
            user: ‘test@gmail.com',
            xoauth2: xoauth2_token,
            host: 'imap.gmail.com',
            port: 993,
            tls: true,
            debug: console.log
        });
        imap.on('ready', function() {
            imap.openBox('INBOX', true, function() {
                var f = imap.seq.fetch(1);
                f.on('message', function(m) {
                    m.once('attributes', function(attrs) {
                        console.log(attrs);
                    });
                });
                f.on('end', function() {
                    imap.end();
                });
            });
        });
        imap.connect();

请求和响应的标头:

[connection] Connected to host
<= '* OK Gimap ready for requests from 212.143.212.222 ce43mb7026158web'
=> 'A0 CAPABILITY'
<= '* CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH AUTH=XOAUTH2 AUTH=PLAIN AUTH=PLAIN-CLIENTTOKEN'
<= 'A0 OK Thats all she wrote! ce43mb7026158web'
=> 'A1 AUTHENTICATE XOAUTH2     dXNlcj11YXBwZmFjdG9yeUBnbWFpbC5jb20BYXV0aD1CZWFyZXIgeWEyOS5MZ0JGU0d0blB0ZkhMeGtBQUFEamdlRUZwVUM5bkQzMWtQNUJxTEt1SDFNTzNlX0dMU2RSVGpFVktxUS1HUQEB'
<= '+ eyJzdGF0dXMiOiI0MDAiLCJzY2hlbWVzIjoiQmVhcmVyIiwic2NvcGUiOiJodHRwczovL21haWwuZ29vZ2xlLmNvbS8ifQ=='
=> '\r\n'
<= 'A1 NO [ALERT] Invalid credentials (Failure)'

我试着指定空密码,没有,用户或没有,注意似乎工作.

我还关注了google网站上的示例:https://developers.google.com/gmail/xoauth2_libraries

在我的Google帐户中,我可以看到我用来连接谷歌并获取令牌的应用程序,管理和查看电子邮件的授权,以及有关用户个人资料的基本详细信息.

我究竟做错了什么？