Question

您好我正在使用scribe库与LInkedIn进行OAuth通信。

我有一个登录类和一个查询类。

登录类创建一个服务来获取我的请求令牌和秘密，并创建我的访问令牌。然后将访问令牌保存到首选项文件中。这似乎工作正常，我可以在创建所有令牌后成功进行api调用。

在我的OAuth查询类中，我检索访问令牌，创建另一个服务并尝试进行API调用，但是当我加载一个调用此类的活动时，它会导致我的应用程序崩溃。我已经过测试，以确保访问令牌已保存，并且它们是。

这是我的登录类

public class Login_LinkedIn extends Activity 
{
SharedPreferences settings;
OAuthService service;
Token requestToken;

Button home;

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.webauth);

    initControls();

    service = new ServiceBuilder()
    .provider(LinkedInApi.class)
    .apiKey( getString(R.string.apiKey) )
    .apiSecret( getString(R.string.secKey) )
    .callback( getString(R.string.callBack) )
    .build();

    requestToken = service.getRequestToken();
    final String authURL = service.getAuthorizationUrl(requestToken);

    final WebView webview = (WebView) findViewById(R.id.webView);

    //attach WebViewClient to intercept the callback url
    webview.setWebViewClient(new WebViewClient()
    {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url)
        {

            //check for our custom callback protocol
            //otherwise use default behavior
            if(url.startsWith( getString(R.string.callBack) ))
            {
                //authorization complete hide webview for now.
                webview.setVisibility(View.GONE);
                Uri uri = Uri.parse(url);
                String verifier = uri.getQueryParameter("oauth_verifier");
                Verifier v = new Verifier(verifier);

                //save this token for practical use.
                Token accessToken = service.getAccessToken(requestToken, v);

                OAuthRequest request = new OAuthRequest(Verb.GET, "http://api.linkedin.com/v1/people/~:(first-name,last-name)");
                service.signRequest(accessToken, request);
                Response response = request.send();

                xmlHandler xh = new xmlHandler(response.getBody());

                settings = getSharedPreferences("preferences", 0);
                SharedPreferences.Editor editor = settings.edit();

                editor.putString("accessToken", accessToken.getToken());

                // The requestToken is saved for use later on to verify the OAuth request.
                // See onResume() below
                editor.putString("requestToken", requestToken.getToken());
                editor.putString("requestSecret", requestToken.getSecret());

                editor.putString("first-name", xh.getValue("first-name"));
                editor.putString("last-name", xh.getValue("last-name"));

                editor.commit();

                return true;
            }
            return super.shouldOverrideUrlLoading(view, url);
        }
   });

   //send user to authorization page
   webview.loadUrl(authURL); 
}

@Override
protected void onResume()
{
    super.onResume();

    Intent i = getIntent();

    if(i != null) 
    {
        Uri uri = i.getData();
        if(uri != null)
        {
            String oauthVerifier = uri.getQueryParameter("oauth_verifier");

            Verifier verifier = new Verifier(oauthVerifier);

            requestToken = new Token(settings.getString("requestToken", null), settings.getString("requestSecret", null));

            Token accessToken = service.getAccessToken(requestToken, verifier);

            // Save the access token.
            SharedPreferences.Editor editor = settings.edit();
            editor.remove("requestToken");
            editor.remove("requestSecret");
            editor.putString("accessToken", accessToken.getToken());
            editor.putString("accessSecret", accessToken.getSecret());
            editor.commit();

            // Start the film list activity.
            final Intent intent = new Intent(this,ProConnect.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(intent);
        }
    }
} 

private void initControls()
{
    home = (Button)findViewById(R.id.home);

    final Intent intent = new Intent(this,ProConnect.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    home.setOnClickListener(new Button.OnClickListener() 
    {
        public void onClick (View v) 
        {
            startActivity(intent);
        }
    });


}

}

和我的查询类

public class oAuthQuery extends Activity
{
OAuthService service;
Token accessToken;
SharedPreferences settings;

public oAuthQuery()
{
    service= new ServiceBuilder()
    .provider(LinkedInApi.class)
    .apiKey( getString(R.string.apiKey) )
    .apiSecret( getString(R.string.secKey) )
    .callback( getString(R.string.callBack) )
    .build();

    settings = getSharedPreferences("preferences", 0);

    accessToken = new Token(settings.getString("accessToken", null), settings.getString("accessSecret", null));

}

public String query(String s)
{
    OAuthRequest request = new OAuthRequest(Verb.GET, s);
    service.signRequest(accessToken, request);
    Response response = request.send();

    return response.getBody();
}

public OAuthService getService()
{
    return service;
}

}

感谢您的帮助杰夫

Answer 1

我解决了这个问题，最终它是愚蠢的。我编辑了我的代码以保存访问密钥和访问令牌但在我的手机上测试我的应用时忘记重新登录。这导致了未保存部分令牌的代码。

我仍然在使用LinkedIn API中的邀请调用时遇到问题

invite.setOnClickListener(new Button.OnClickListener() 
        {
            public void onClick (View v) 
            {
                inviteXml = inviteCreator.inviteString(to, subj, body, authName, authValue);
                nameField.setText(inviteXml);
                titleField.setText("");


                call = "http://api.linkedin.com/v1/people/~/mailbox";
                request = new OAuthRequest(Verb.GET, call);
                request.addPayload(inviteXml);
                service.signRequest(accessToken, request);
                response = request.send();

                invite.setVisibility(View.GONE);
            }
        });

我不确定这是否是将XML字符串添加到调用的正确方法。 LinkedIn API没有指定如何添加它。有没有人有这方面的经验？

在Android上使用OAuth和Scribe一起使用

1 个答案: