使用X- facebook -PLATFORM SASL身份验证的FACEBOOK聊天身份验证

Question

我正在使用X- facebook -PLATFORM SASL身份验证机制处理FACEBOOK聊天身份验证。

我按照facebook开发者论坛和stackoverflow问题中所解释的那样形成用户和密码。

关键是，如果我使用application_secret作为密码，我就可以登录，但根据堆栈溢出问题(下面的链接)，它应该是从旧的rest api方法auth.promoteSession生成的会话

我想使用旧的rest api方法，以避免在我们的桌面应用程序jars中分发application_secret。

所以问题是，你是如何用auth.promoteSession登录的？

我已经阅读了以下帖子，它们对我有很大的帮助：

http://community.igniterealtime.org/message/205739#205739

XMPP with Java Asmack library supporting X-FACEBOOK-PLATFORM

我使用的是SASLXFacebookPlatformMechanism.java类，它来自于igniterealtime帖子，并且注册正确。

我有xmpp_login和offline_access权限。而且我已经禁用了Remove Deprecated方法，所以我可以调用旧的rest api方法，在本例中: auth.promoteSession我也在使用客户端对facebook进行身份验证。

所以，使用application_secret作为我得到的密码：

<stream:features><mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><mechanism>X-FACEBOOK-PLATFORM</mechanism><mechanism>DIGEST-MD5</mechanism></mechanisms></stream:features>
<challenge xmlns="urn:ietf:params:xml:ns:xmpp-sasl">dmVyc2lvbj0xJm1ldGhvZD1hdXRoLnhtcHBfbG9naW4mbm9uY2U9NEIxRUQzNTA5MTQ5MDQxRTE4N0QyNTA0NTUzNjBDQjc=</challenge>
<success xmlns="urn:ietf:params:xml:ns:xmpp-sasl"/>

但是如果我使用由我得到的auth.promoteSession返回的值：

<stream:features><mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><mechanism>X-FACEBOOK-PLATFORM</mechanism><mechanism>DIGEST-MD5</mechanism></mechanisms></stream:features>
<challenge xmlns="urn:ietf:params:xml:ns:xmpp-sasl">dmVyc2lvbj0xJm1ldGhvZD1hdXRoLnhtcHBfbG9naW4mbm9uY2U9MzhFQkUxOTUxNENGRUU4ODc2NzRDREQ0RjhBMUQ0QjI=</challenge>
<failure xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><not-authorized/></failure>

Answer 1

我已经更改了Android的版本，它现在适用于我了

public class SASLXFacebookPlatformMechanism extends SASLMechanism {

    private static final String NAME              = "X-FACEBOOK-PLATFORM";

    private String              apiKey            = "";
    private String              accessToken        = "";

    /**
     * Constructor.
     */
    public SASLXFacebookPlatformMechanism(SASLAuthentication saslAuthentication) {
        super(saslAuthentication);
    }

    @Override
    protected void authenticate() throws IOException, XMPPException {
        getSASLAuthentication().send(new AuthMechanism(NAME, ""));
    }

    @Override
    public void authenticate(String apiKey, String host, String accessToken) throws IOException, XMPPException {
        if (apiKey == null || accessToken == null) {
            throw new IllegalArgumentException("Invalid parameters");
        }

        this.apiKey = apiKey;
        this.accessToken = accessToken;
        this.hostname = host;

        String[] mechanisms = { "DIGEST-MD5" };
        Map<String, String> props = new HashMap<String, String>();
        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<String, String> props = new HashMap<String, String>();
        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<String, String> parameters = getQueryMap(decodedChallenge);

            String version = "1.0";
            String nonce = parameters.get("nonce");
            String method = parameters.get("method");

            String composedResponse =
                "method=" + URLEncoder.encode(method, "utf-8") +
                        "&nonce=" + URLEncoder.encode(nonce, "utf-8") +
                        "&access_token=" + URLEncoder.encode(accessToken, "utf-8") +
                        "&api_key=" + URLEncoder.encode(apiKey, "utf-8") +
                        "&call_id=0" +
                        "&v=" + URLEncoder.encode(version, "utf-8");
            response = composedResponse.getBytes();
        }

        String authenticationText = "";

        if (response != null) {
            authenticationText = Base64.encodeBytes(response);
        }

        // Send the authentication to the server
        getSASLAuthentication().send(new Response(authenticationText));
    }

    private Map<String, String> getQueryMap(String query) {
        Map<String, String> map = new HashMap<String, String>();
        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;
    }
}

此版本仅需要应用程序id和访问令牌

ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com", 5222);
config.setSASLAuthenticationEnabled(true);
mFbConnection = new XMPPConnection(config);

try {
    SASLAuthentication.registerSASLMechanism("X-FACEBOOK-PLATFORM", SASLXFacebookPlatformMechanism.class);
    SASLAuthentication.supportSASLMechanism("X-FACEBOOK-PLATFORM", 0);
    mFbConnection.connect();
    mFbConnection.login(apiKey, accessToken, "Application");
} catch (XMPPException e) {
    mFbConnection.disconnect();
    e.printStackTrace();
}

我希望这能有所帮助。

Answer 2

是的，对我来说，你两者都需要。来自XMPP with Java Asmack library supporting X-FACEBOOK-PLATFORM的代码需要调整，以包括应用程序秘密以及会话秘密(作为密码)。

this.apiKey = keyArray[0];
    Log.d("API_KEY", apiKey);
    this.applicationSecret = "################################";
    Log.d("SECRET_KEY", applicationSecret);
    this.sessionKey = keyArray[1];
    Log.d("SESSION_KEY", sessionKey);

    this.authenticationId = sessionKey;
    this.password = applicationSecret;
    this.hostname = host;

为你的appSecret换出######################## (在你的开发区)

这一点在文档或IMO帖子中并不清楚。会话密钥是通过FB.getSession()获得的，但也可以使用其他选项。