连接到Facebook XMMP MD5-DIGEST的问题
我已经尝试了将Facebook与XMPP连接起来的所有东西，但我一直只遇到一个错误，那就是：
使用DIGEST-MD5机制进行SASL身份validation失败
我正在实现以下方法来执行此任务：
public class MySASLDigestMD5Mechanism extends SASLMechanism { public MySASLDigestMD5Mechanism(SASLAuthentication saslAuthentication) { super(saslAuthentication); } protected void authenticate() throws IOException, XMPPException { String[] mechanisms = { getName() }; Map props = new HashMap(); sc = Sasl.createSaslClient(mechanisms, null, "xmpp", hostname, props, this); super.authenticate(); } public void authenticate(String username, String host, String password) throws IOException, XMPPException { this.authenticationId = username; this.password = password; this.hostname = host; String[] mechanisms = { getName() }; Map props = new HashMap(); sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, this); super.authenticate(); } public void authenticate(String username, String host, CallbackHandler cbh) throws IOException, XMPPException { String[] mechanisms = { getName() }; Map props = new HashMap(); sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, (org.apache.harmony.javax.security.auth.callback.CallbackHandler) cbh); super.authenticate(); } protected String getName() { return "DIGEST-MD5"; } /*public void challengeReceived1(String challenge) throws IOException { // Build the challenge response stanza encoding the response text StringBuilder stanza = new StringBuilder(); byte response[]; if (challenge != null) { response = sc.evaluateChallenge(Base64.decode(challenge)); } else { response = sc.evaluateChallenge(null); } String authenticationText=""; if (response != null) { // fix from 3.1.1 authenticationText = Base64.encodeBytes(response, Base64.DONT_BREAK_LINES); if (authenticationText.equals("")) { authenticationText = "="; } } stanza.append(""); stanza.append(authenticationText); stanza.append(""); // Send the authentication to the server getSASLAuthentication().send(stanza.toString()); }*/ public void challengeReceived(String challenge) throws IOException { byte response[]; if (challenge != null) { response = sc.evaluateChallenge(Base64.decode(challenge)); } else { response = sc.evaluateChallenge(new byte[0]); } Packet responseStanza; if (response == null) { responseStanza = new Response(); } else { responseStanza = new Response(Base64.encodeBytes(response, Base64.DONT_BREAK_LINES)); } getSASLAuthentication().send(responseStanza); } } 和连接function是：
try{ SASLAuthentication.registerSASLMechanism("DIGEST-MD5",MySASLDigestMD5Mechanism. class); ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com",5222); config.setSASLAuthenticationEnabled(true); config.setRosterLoadedAtLogin (true); connection = new XMPPConnection(config); connection.connect(); Log.d("Connect...", "Afetr Connect"); connection.login("username@chat.facebook.com", "password"); Log.d("done","XMPP client logged in"); } catch(XMPPException ex) { Log.d("not done","in catchhhhhhhhh"); System.out.println(ex.getMessage ()); connection.disconnect(); } } but "After connect" it gone to the ctach and give me error like : SASL authentication failed using mechanism DIGEST-MD5
我搜索了所有的博客并找到了相同的东西，但我不知道我在这里做错了什么..
如果有任何其他方式或解决方案连接Facebook XMPP，请尽快帮助我
最后，感谢no.good.at.coding代码和harism的建议，我已经能够连接到Facebook聊天。 此代码是Asmack库（Android的Smack端口）的机制。 对于Smack库，必须使用no.good.at.coding机制。
SASLXFacebookPlatformMechanism.java：
import java.io.IOException; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.GregorianCalendar; import java.util.HashMap; import java.util.Map; import org.apache.harmony.javax.security.auth.callback.CallbackHandler; import org.apache.harmony.javax.security.sasl.Sasl; import org.jivesoftware.smack.SASLAuthentication; import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.sasl.SASLMechanism; import org.jivesoftware.smack.util.Base64; public class SASLXFacebookPlatformMechanism extends SASLMechanism { private static final String NAME = "X-FACEBOOK-PLATFORM"; private String apiKey = ""; private String applicationSecret = ""; private String sessionKey = ""; /** * Constructor. */ public SASLXFacebookPlatformMechanism(SASLAuthentication saslAuthentication) { super(saslAuthentication); } @Override protected void authenticate() throws IOException, XMPPException { getSASLAuthentication().send(new AuthMechanism(NAME, "")); } @Override public void authenticate(String apiKeyAndSessionKey, String host, String applicationSecret) throws IOException, XMPPException { if (apiKeyAndSessionKey == null || applicationSecret == null) { throw new IllegalArgumentException("Invalid parameters"); } String[] keyArray = apiKeyAndSessionKey.split("\\|", 2); if (keyArray.length < 2) { throw new IllegalArgumentException( "API key or session key is not present"); } this.apiKey = keyArray[0]; this.applicationSecret = applicationSecret; this.sessionKey = keyArray[1]; this.authenticationId = sessionKey; this.password = applicationSecret; this.hostname = host; String[] mechanisms = { "DIGEST-MD5" }; Map props = new HashMap(); this.sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props,this); authenticate(); } @Override public void authenticate(String username, String host, CallbackHandler cbh)throws IOException, XMPPException { String[] mechanisms = { "DIGEST-MD5" }; Map props = new HashMap(); this.sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props,cbh); authenticate(); } @Override protected String getName() { return NAME; } @Override public void challengeReceived(String challenge) throws IOException { byte[] response = null; if (challenge != null) { String decodedChallenge = new String(Base64.decode(challenge)); Map parameters = getQueryMap(decodedChallenge); String version = "1.0"; String nonce = parameters.get("nonce"); String method = parameters.get("method"); long callId = new GregorianCalendar().getTimeInMillis(); String sig = "api_key=" + apiKey + "call_id=" + callId + "method=" + method + "nonce=" + nonce + "session_key=" + sessionKey + "v=" + version + applicationSecret; try { sig = md5(sig); } catch (NoSuchAlgorithmException e) { throw new IllegalStateException(e); } String composedResponse = "api_key=" + URLEncoder.encode(apiKey, "utf-8") + "&call_id=" + callId + "&method="+ URLEncoder.encode(method, "utf-8") + "&nonce="+ URLEncoder.encode(nonce, "utf-8")+ "&session_key="+ URLEncoder.encode(sessionKey, "utf-8") + "&v="+ URLEncoder.encode(version, "utf-8") + "&sig="+ URLEncoder.encode(sig, "utf-8");response = composedResponse.getBytes("utf-8"); } String authenticationText = ""; if (response != null) { authenticationText = Base64.encodeBytes(response, Base64.DONT_BREAK_LINES); } // Send the authentication to the server getSASLAuthentication().send(new Response(authenticationText)); } private Map getQueryMap(String query) { Map map = new HashMap(); String[] params = query.split("\\&"); for (String param : params) { String[] fields = param.split("=", 2); map.put(fields[0], (fields.length > 1 ? fields[1] : null)); } return map; } private String md5(String text) throws NoSuchAlgorithmException,UnsupportedEncodingException { MessageDigest md = MessageDigest.getInstance("MD5"); md.update(text.getBytes("utf-8"), 0, text.length()); return convertToHex(md.digest()); } private String convertToHex(byte[] data) { StringBuilder buf = new StringBuilder(); int len = data.length; for (int i = 0; i < len; i++) { int halfByte = (data[i] >>> 4) & 0xF; int twoHalfs = 0; do { if (0 <= halfByte && halfByte <= 9) { buf.append((char) ('0' + halfByte)); } else { buf.append((char) ('a' + halfByte - 10)); } halfByte = data[i] & 0xF; } while (twoHalfs++ < 1); } return buf.toString(); } }
要使用它：
ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com", 5222); config.setSASLAuthenticationEnabled(true); XMPPConnection xmpp = new XMPPConnection(config); try { SASLAuthentication.registerSASLMechanism("X-FACEBOOK-PLATFORM", SASLXFacebookPlatformMechanism.class); SASLAuthentication.supportSASLMechanism("X-FACEBOOK-PLATFORM", 0); xmpp.connect(); xmpp.login(apiKey + "|" + sessionKey, sessionSecret, "Application"); } catch (XMPPException e) { xmpp.disconnect(); e.printStackTrace(); }
apiKey是Facebook中应用程序设置页面中给出的API密钥。 sessionKey是访问令牌的第二部分。 如果令牌是这种forms，AAA | BBB | CCC，则BBB是会话密钥。 sessionSecret是使用旧的REST API和auth.promoteSession方法获得的。 要使用它，需要让Http获取此url：
https://api.facebook.com/method/auth.promoteSession?access_token=yourAccessToken
尽管Facebook Chat文档说它需要使用你的应用程序密钥，但只有当我使用返回该REST方法的密钥时我才能使它工作。 要使该方法有效，您必须在应用程序设置的“高级”选项卡中禁用“禁用不推荐使用的身份validation方法”选项。
我解决了这个问题。 我找到http://community.igniterealtime.org/thread/41080的解决方案
杰里马吉尔写了这个……
import java.io.IOException; import java.util.HashMap; import javax.security.auth.callback.CallbackHandler; import javax.security.sasl.Sasl; import org.jivesoftware.smack.SASLAuthentication; import org.jivesoftware.smack.XMPPException; import org.jivesoftware.smack.sasl.SASLMechanism; import org.jivesoftware.smack.packet.Packet; import org.jivesoftware.smack.util.Base64; public class MySASLDigestMD5Mechanism extends SASLMechanism { public MySASLDigestMD5Mechanism(SASLAuthentication saslAuthentication) { super(saslAuthentication); } protected void authenticate() throws IOException, XMPPException { String mechanisms[] = { getName() }; java.util.Map props = new HashMap(); sc = Sasl.createSaslClient(mechanisms, null, "xmpp", hostname, props, this); super.authenticate(); } public void authenticate(String username, String host, String password) throws IOException, XMPPException { authenticationId = username; this.password = password; hostname = host; String mechanisms[] = { getName() }; java.util.Map props = new HashMap(); sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, this); super.authenticate(); } public void authenticate(String username, String host, CallbackHandler cbh) throws IOException, XMPPException { String mechanisms[] = { getName() }; java.util.Map props = new HashMap(); sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, cbh); super.authenticate(); } protected String getName() { return "DIGEST-MD5"; } public void challengeReceived(String challenge) throws IOException { //StringBuilder stanza = new StringBuilder(); byte response[]; if(challenge != null) response = sc.evaluateChallenge(Base64.decode(challenge)); else //response = sc.evaluateChallenge(null); response = sc.evaluateChallenge(new byte[0]); //String authenticationText = ""; Packet responseStanza; //if(response != null) //{ //authenticationText = Base64.encodeBytes(response, 8); //if(authenticationText.equals("")) //authenticationText = "="; if (response == null){ responseStanza = new Response(); } else { responseStanza = new Response(Base64.encodeBytes(response,Base64.DONT_BREAK_LINES)); } //} //stanza.append(""); //stanza.append(authenticationText); //stanza.append(" "); //getSASLAuthentication().send(stanza.toString()); getSASLAuthentication().send(responseStanza); } }
然后从JabberSmackAPI调用它：
public void login(String userName, String password) throws XMPPException { SASLAuthentication.registerSASLMechanism("DIGEST-MD5",MySASLDigestMD5Mechanism. class); ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com",5222); config.setSASLAuthenticationEnabled(true); config.setRosterLoadedAtLogin (true); connection = new XMPPConnection(config); connection.connect(); connection.login(userName, password); }