Android Oauth异常与SMTP传输连接，与Android版本2.3

Question

当我尝试在添加新的AUTH XOAUTH2命令后运行我的android项目时，我得到以下错误。我使用的是android设备，操作系统版本2.3，但相同的代码在android 4.0上运行良好

    public SMTPTransport connectToSmtp(String host, int port, String userEmail,String oauthToken, boolean debug) throws Exception 
{
    Properties props = new Properties();
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.starttls.required", "true");
    props.put("mail.smtp.sasl.enable", "false");
    session = Session.getInstance(props);
    session.setDebug(debug);

    final URLName unusedUrlName = null;
    SMTPTransport transport = new SMTPTransport(session, unusedUrlName);
    // If the password is non-null, SMTP tries to do AUTH LOGIN.
    final String emptyPassword = null;
    transport.connect(host, port, userEmail, emptyPassword);
    byte[] response = String.format("user=%s1auth=Bearer %s11", userEmail,oauthToken).getBytes();
    response = BASE64EncoderStream.encode(response);
    transport.issueCommand("AUTH XOAUTH2 " + new String(response),235);
    return transport;
}

请检查日志

03-21 10:05:08.679: W/System.err(987): javax.mail.MessagingException: 334 eyJzdGF0dXMiOiI0MDAiLCJzY2hlbWVzIjoiQmVhcmVyIiwic2NvcGUiOiJodHRwczovL21haWwuZ29vZ2xlLmNvbS8ifQ==
03-21 10:05:08.679: W/System.err(987):  at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:1481)
03-21 10:05:08.679: W/System.err(987):  at com.swapmeen.test.GMailOauthSender.connectToSmtp(GMailOauthSender.java:48)
03-21 10:05:08.679: W/System.err(987):  at com.swapmeen.test.GMailOauthSender.sendMail(GMailOauthSender.java:57)
03-21 10:05:08.679: W/System.err(987):  at com.swapmeen.test.MainActivity$1.run(MainActivity.java:64)

Answer 1

您收到的错误

eyJzdGF0dXMiOiI0MDAiLCJzY2hlbWVzIjoiQmVhcmVyIiwic2NvcGUiOiJodHRwczovL21haWwuZ29vZ2xlLmNvbS8ifQ==

使用Base64解码器

解码为以下内容

{"status":"400","schemes":"Bearer","scope":"https://mail.google.com/"}

最终的含义(与消息一样神秘)是您正在使用的身份验证令牌已经过期。您需要使其无效，然后获得一个新的令牌(只需再次请求令牌)。

您可以像这样使令牌无效:

mAccountManager.invalidateAuthToken("com.google", mAuthenticationToken);

我希望这是有帮助的:)