我正在尝试使用从Android的AccountManager收到的令牌而不是使用用户名和密码来实现IMAP gmail客户端.
Google通过oauth2 http://code.google.com/p/google-mail-oauth2-tools/source/browse/#svn%2Ftrunk%2Fjava%2Fcom%2Fgoogle%2Fcode%2Fsamples%2Foauth2 http://code.google.com/p/google-mail-oauth2-tools/wiki/JavaSampleCode提供了此IMAP示例
public static IMAPStore connectToImap(String host,
int port,
String userEmail,
String oauthToken,
boolean debug) throws Exception {
Properties props = new Properties();
props.put("mail.imaps.sasl.enable", "true");
props.put("mail.imaps.sasl.mechanisms", "XOAUTH2");
props.put(OAuth2SaslClientFactory.OAUTH_TOKEN_PROP, oauthToken);
Session session = Session.getInstance(props);
session.setDebug(debug);
final URLName unusedUrlName = null;
IMAPSSLStore store = new IMAPSSLStore(session, unusedUrlName);
final String emptyPassword = "";
store.connect(host, port, userEmail, emptyPassword);
return store;
}
public static void main(String args[]) throws Exception {
if (args.length != 2) {
System.err.println(
"Usage: OAuth2Authenticator <email> <oauthToken>");
return;
}
String email = args[0];
String oauthToken = args[1];
initialize();
IMAPStore imapStore = connectToImap("imap.gmail.com",
993,
email,
oauthToken,
true);
System.out.println("Successfully authenticated to IMAP.\n");
}
但是,当我运行上面的代码时,我得到一个“空用户名或密码”的例外.有人可以告诉我如何使用带有xoauth2的imap访问gmail吗?谢谢.
更新2013/02/20,下面是调试日志
02-19 17:27:20.098 1905: 1905 I/System.out : setDebug: JavaMail version 1.4.1
02-19 17:27:20.098 1905: 1905 I/System.out : mail.imap.fetchsize: 16384
02-19 17:27:20.106 1905: 1905 I/System.out : enable SASL
02-19 17:27:20.106 1905: 1905 I/System.out : SASL mechanisms allowed: XOAUTH2
02-19 17:27:21.340 1905: 1905 I/System.out : * OK Gimap ready for requests from 36.224.98.49 z8if14713202igb.53
02-19 17:27:21.348 1905: 1905 I/System.out : A0 CAPABILITY
02-19 17:27:21.598 1905: 1905 I/System.out : * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH AUTH=XOAUTH2
02-19 17:27:21.598 1905: 1905 I/System.out : A0 OK Thats all she wrote! z8if14713202igb.53
02-19 17:27:21.614 1905: 1905 I/System.out : IMAP DEBUG: AUTH: XOAUTH
02-19 17:27:21.614 1905: 1905 I/System.out : IMAP DEBUG: AUTH: XOAUTH2
02-19 17:27:21.614 1905: 1905 I/System.out : DEBUG: protocolConnect login, host=imap.gmail.com, user=2104176@gmail.com, password=<non-null>
02-19 17:27:21.622 1905: 1905 I/System.out : IMAP SASL DEBUG: Mechanisms: XOAUTH2
02-19 17:27:21.817 1905: 1905 I/System.out : IMAP SASL DEBUG: Failed to create SASL client: myjavax.security.sasl.SaslException: Cannot instantiate class com.research.oauth.OAuth2SaslClientFactory [Caused by java.lang.InstantiationException: can't instantiate class com.research.oauth.OAuth2SaslClientFactory]
02-19 17:27:21.817 1905: 1905 I/System.out : A1 LOGIN 2104176@gmail.com ""
02-19 17:27:22.036 1905: 1905 I/System.out : A1 NO Empty username or password. z8if14713202igb.53
02-19 17:27:22.044 1905: 1905 D/test : javax.mail.AuthenticationFailedException: Empty username or password. z8if14713202igb.53
我使用yor mail.jar和我的应用程序无法创建SASL客户端:myjavax.security.sasl.SaslException:无法实例化类com.research.oauth.OAuth2SaslClientFactory,然后app使用空密码登录gmail.
请帮我弄清楚问题,谢谢!
解决方法:
您是否记得在OAuth2Provider中更改您的包名?当我使用该代码进行测试时,我忘了它.
public static final class OAuth2Provider extends Provider {
private static final long serialVersionUID = 1L;
public OAuth2Provider() {
super("Google OAuth2 Provider", 1.0,
"Provides the XOAUTH2 SASL Mechanism");
put("SaslClientFactory.XOAUTH2",
"com.example.testjavamail.OAuth2SaslClientFactory");
}
}
UPDATE
这是我使用的代码,它基本上是示例代码,它真正改变了Java Mail中SASL支持的移植.
public class OAuth2Authenticator {
private static final Logger logger = Logger
.getLogger(OAuth2Authenticator.class.getName());
private static Session mSession;
public static final class OAuth2Provider extends Provider {
private static final long serialVersionUID = 1L;
public OAuth2Provider() {
super("Google OAuth2 Provider", 1.0,
"Provides the XOAUTH2 SASL Mechanism");
put("SaslClientFactory.XOAUTH2",
"com.example.testjavamail.OAuth2SaslClientFactory");
}
}
public static void initialize() {
Security.addProvider(new OAuth2Provider());
}
public static IMAPStore connectToImap(String host, int port,
String userEmail, String oauthToken, boolean debug)
throws Exception {
Properties props = new Properties();
props.put("mail.imaps.sasl.enable", "true");
props.put("mail.imaps.sasl.mechanisms", "XOAUTH2");
props.put(OAuth2SaslClientFactory.OAUTH_TOKEN_PROP, oauthToken);
Session session = Session.getInstance(props);
session.setDebug(debug);
final URLName unusedUrlName = null;
IMAPSSLStore store = new IMAPSSLStore(session, unusedUrlName);
final String emptyPassword = "";
store.connect(host, port, userEmail, emptyPassword);
return store;
}
public static 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", "true");
props.put("mail.smtp.sasl.mechanisms", "XOAUTH2");
props.put(OAuth2SaslClientFactory.OAUTH_TOKEN_PROP, oauthToken);
mSession = Session.getInstance(props);
mSession.setDebug(debug);
final URLName unusedUrlName = null;
SMTPTransport transport = new SMTPTransport(mSession, unusedUrlName);
// If the password is non-null, SMTP tries to do AUTH LOGIN.
final String emptyPassword = null;
transport.connect(host, port, userEmail, emptyPassword);
return transport;
}
public synchronized void testImap(String user, String oauthToken) {
try {
initialize();
IMAPStore imapStore = connectToImap("imap.gmail.com", 993, user,
oauthToken, true);
} catch (Exception e) {
Log.d("test", e.toString());
}
}
public class ByteArrayDataSource implements DataSource {
private byte[] data;
private String type;
public ByteArrayDataSource(byte[] data, String type) {
super();
this.data = data;
this.type = type;
}
public ByteArrayDataSource(byte[] data) {
super();
this.data = data;
}
public void setType(String type) {
this.type = type;
}
public String getContentType() {
if (type == null)
return "application/octet-stream";
else
return type;
}
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(data);
}
public String getName() {
return "ByteArrayDataSource";
}
public OutputStream getoutputStream() throws IOException {
throw new IOException("Not Supported");
}
}
}
这是来自Java Mail的调试.顺便说一句,发布你的调试日志,它应该有助于解决出错的问题
02-06 10:18:11.805: I/System.out(7434): DEBUG: setDebug: JavaMail version 1.4.1
02-06 10:18:11.905: I/System.out(7434): DEBUG: mail.imap.fetchsize: 16384
02-06 10:18:12.025: I/System.out(7434): DEBUG: enable SASL
02-06 10:18:12.040: I/System.out(7434): DEBUG: SASL mechanisms allowed: XOAUTH2
02-06 10:18:12.600: I/System.out(7434): * OK Gimap ready for requests from 2.233.xxx.xxx 2if1471965eej.3
02-06 10:18:12.605: I/System.out(7434): A0 CAPABILITY
02-06 10:18:12.635: I/System.out(7434): * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH AUTH=XOAUTH2
02-06 10:18:12.635: I/System.out(7434): A0 OK Thats all she wrote! 2if1471965eej.3
02-06 10:18:12.645: I/System.out(7434): IMAP DEBUG: AUTH: XOAUTH
02-06 10:18:12.645: I/System.out(7434): IMAP DEBUG: AUTH: XOAUTH2
02-06 10:18:12.645: I/System.out(7434): DEBUG: protocolConnect login, host=imap.gmail.com, user=xxx@gmail.com, password=<non-null>
02-06 10:18:12.650: I/System.out(7434): IMAP SASL DEBUG: Mechanisms: XOAUTH2
02-06 10:18:12.695: I/System.out(7434): IMAP SASL DEBUG: SASL client XOAUTH2
02-06 10:18:12.695: I/System.out(7434): A1 AUTHENTICATE XOAUTH2
02-06 10:18:12.720: I/System.out(7434): +
02-06 10:18:12.720: I/System.out(7434): IMAP SASL DEBUG: challenge: :
02-06 10:18:12.730: I/System.out(7434): IMAP SASL DEBUG: callback length: 1
02-06 10:18:12.730: I/System.out(7434): IMAP SASL DEBUG: callback 0: myjavax.security.auth.callback.NameCallback@41760f78
02-06 10:18:12.730: I/System.out(7434): IMAP SASL DEBUG: response: user=xxx@gmail.comauth=Bearer ya29.... :
02-06 10:18:12.735: I/System.out(7434): dXNlcj1hbGVhbGVtYXp6b3R0aUBnbWFpbC5jb20BYXV0aD1CZWFyZXIgeWEyOS5BSEVTNlpRYklPeU8xU09sR01WSEO3X2tqVzlVdzNYY1RvODBtQ0hyWFVacjRsYlhIdwEB
02-06 10:18:12.870: I/System.out(7434): * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIdplUS COMPRESS=DEFLATE
02-06 10:18:12.870: I/System.out(7434): A1 OK xxx@gmail.com My NAME authenticated (Success)
02-06 10:18:12.870: I/System.out(7434): A2 CAPABILITY
02-06 10:18:13.160: I/System.out(7434): * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIdplUS COMPRESS=DEFLATE
02-06 10:18:13.160: I/System.out(7434): A2 OK Success
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