401检索谷歌日历时出现未知授权错误

当我执行CalendarService.setOAuthCredentials（oauthParameters，new OAuthHmacSha1Signer（））时；我得到一个OAuthException 401错误未知的授权标头。

我使用的是GWT+GAE，我不知道为什么会收到这个错误，oauthParameters似乎还可以。

我让用户登录登录服务。登录
我检查我是否有身份验证已打开oauthService.checkOauthTokenSecret
如果没有，我会重定向到谷歌GCalendar的评估页面许可
我得到querystring谷歌返回，我获得访问权限令牌和访问令牌秘密和将其设置为稍后使用的用户实体在oauthService.upgradeLogin上使用
尝试打开日历oauthService.get公共日历

我在mvp4g框架中使用MVP模式，很抱歉有点混淆0:-）

知道我为什么会收到401错误吗？我认为这是关于我要上升的东西；向下浏览客户端、服务器和外部页面。。。缺少了一些东西：-（但所有参数似乎都已正确填充。

客户端

public void onStart(){
    GWT.log("onStart");
    loginService.login(GWT.getHostPageBaseURL(), new AsyncCallback<LoginInfo>() {
        @Override
        public void onSuccess(LoginInfo result) {
            Common.loginInfo = result;
            if(Common.loginInfo.isLoggedIn()) { 
                oauthService.checkOauthTokenSecret(new AsyncCallback<String>() {
                    @Override
                    public void onSuccess(String result) {
                        if (result == null){
                            eventBus.OauthLogin();
                        }else{
                            oauthService.upgradeLogin(Window.Location.getQueryString(),Common.loginInfo, new AsyncCallback<LoginInfo>() {
                                @Override
                                public void onSuccess(LoginInfo result) {
                                    Common.loginInfo = result;
                                    getCitas();
                                }
                                @Override public void onFailure(Throwable caught) {
                                    Common.handleError(caught);                         
                                }
                            });
                        }
                    }
                    @Override public void onFailure(Throwable caught) {
                        Common.handleError(caught);                         
                    }
                });
            }else{
                eventBus.LoadLogin();
            }
        }
        @Override public void onFailure(Throwable caught) {
            Common.handleError(caught);
        }
    });
}

服务器端

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletContext;
import com.google.gdata.client.authn.oauth.GoogleOAuthHelper;
import com.google.gdata.client.authn.oauth.GoogleOAuthParameters;
import com.google.gdata.client.authn.oauth.OAuthException;
import com.google.gdata.client.authn.oauth.OAuthHmacSha1Signer;
import com.google.gdata.client.authn.oauth.OAuthParameters;
import com.google.gdata.client.calendar.CalendarService;
import com.google.gdata.data.calendar.CalendarEntry;
import com.google.gdata.data.calendar.CalendarFeed;
import com.google.gdata.util.ServiceException;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import com.rdt.citas.client.OAuthoritzationService;
import com.rdt.citas.client.shared.LoginInfo;
public class OAuthoritzationServiceImpl extends RemoteServiceServlet 
implements OAuthoritzationService {
/**
 * 
 */
private static final long serialVersionUID = 1L;
private static final Logger log = Logger.getLogger(OAuthoritzationServiceImpl.class.getName());
private static String KEY_PARAM = "oauth_consumer_key";
private static String SECRET_PARAM = "oauth_consumer_secret";
private static String SCOPE_PARAM = "scope_calendars";
private static String CALLBACK_PARAM = "oauth_callback";

public String checkOauthTokenSecret(){
    ServletContext context = this.getServletContext();
    getOauthParams(context);
    return (String) this.getThreadLocalRequest().getSession().getAttribute("oauthTokenSecret");;
}
public String getApprovalOAuthPageURL() throws IOException{
    ServletContext context = this.getServletContext();
    getOauthParams(context);
    GoogleOAuthParameters oauthParameters = new GoogleOAuthParameters();
    oauthParameters.setOAuthConsumerKey(getFromSession(KEY_PARAM));
    oauthParameters.setOAuthConsumerSecret(getFromSession(SECRET_PARAM));
    oauthParameters.setScope(getFromSession(SCOPE_PARAM));
    oauthParameters.setOAuthCallback(getFromSession(CALLBACK_PARAM));
    GoogleOAuthHelper oauthHelper = new GoogleOAuthHelper(new OAuthHmacSha1Signer());
    try {                       
        oauthHelper.getUnauthorizedRequestToken(oauthParameters);
        String approvalPageUrl = oauthHelper.createUserAuthorizationUrl(oauthParameters);
        String oauthTokenSecret = oauthParameters.getOAuthTokenSecret();
        this.getThreadLocalRequest().getSession().setAttribute("oauthTokenSecret", oauthTokenSecret);
        return approvalPageUrl;
    } catch (OAuthException e) {
        log.log(Level.WARNING,e.toString());
        return "";
    } finally{
    }
}
public LoginInfo upgradeLogin(String queryString, LoginInfo login){
    // receiving '?key1=value1&key2=value2
    queryString = queryString.substring(1, queryString.length());
    String k = getFromSession(KEY_PARAM);
    String s = getFromSession(SECRET_PARAM);
    GoogleOAuthParameters oauthParameters = new GoogleOAuthParameters();
    oauthParameters.setOAuthConsumerKey(k);
    oauthParameters.setOAuthConsumerSecret(s);
    String oauthTS = (String) this.getThreadLocalRequest().getSession().getAttribute("oauthTokenSecret");//oauthParameters.getOAuthTokenSecret();
    oauthParameters.setOAuthTokenSecret(oauthTS);
    GoogleOAuthHelper oauthHelper = new GoogleOAuthHelper(new OAuthHmacSha1Signer());
    oauthHelper.getOAuthParametersFromCallback(queryString,oauthParameters);
    login.setQueryStringTokens(queryString);
    login.setAccessTokenSecret(oauthTS);
    try {
        String accesToken = oauthHelper.getAccessToken(oauthParameters);
        login.setTokenSecret(accesToken);
    } catch (OAuthException e) {
        log.log(Level.WARNING,e.toString());
    }
    return login;
} 
public ArrayList<String> getPublicCalendars(String accessToken, String accessTokenSecret){
    ArrayList<String> result = new ArrayList<String>();
    CalendarFeed calendarResultFeed = null;
    GoogleOAuthParameters oauthParameters = new GoogleOAuthParameters();
    oauthParameters.setOAuthConsumerKey(getFromSession(KEY_PARAM));
    oauthParameters.setOAuthConsumerSecret(getFromSession(SECRET_PARAM));
    oauthParameters.setOAuthToken(accessToken);
    oauthParameters.setOAuthTokenSecret(accessTokenSecret);            
    oauthParameters.setOAuthType(OAuthParameters.OAuthType.THREE_LEGGED_OAUTH);
    oauthParameters.setScope(getFromSession(SCOPE_PARAM));
    CalendarService myService = new CalendarService("exampleCo-exampleApp-1");                  
    try {
        myService.setOAuthCredentials(oauthParameters, new OAuthHmacSha1Signer());
        URL calendarFeedUrl = new URL("https://www.google.com/calendar/feeds/default/owncalendars/full");
        calendarResultFeed = myService.getFeed(calendarFeedUrl, CalendarFeed.class);
    } catch (OAuthException e) {
        log.info("OAuthException");
        log.log(Level.WARNING,e.toString());
        e.printStackTrace();
    } catch (MalformedURLException e) {
        log.info("MalformedURLException");
        log.log(Level.WARNING,e.toString());
        e.printStackTrace();
    } catch (IOException e) {
        log.info("IOException");
        log.log(Level.WARNING,e.toString());
        e.printStackTrace();
    } catch (ServiceException e) {
        log.info("ServiceException");
        log.log(Level.WARNING,e.toString());
        e.printStackTrace();
    }
    if (calendarResultFeed != null && calendarResultFeed.getEntries() != null) {
        for (int i = 0; i < calendarResultFeed.getEntries().size(); i++) {
            CalendarEntry entry = calendarResultFeed.getEntries().get(i);
            result.add(entry.getTitle().getPlainText());              
        } 
    }
    return result;
}

private void getOauthParams(ServletContext context) {
    this.getThreadLocalRequest().getSession()
        .setAttribute(KEY_PARAM, context.getInitParameter(KEY_PARAM));
    this.getThreadLocalRequest().getSession()
        .setAttribute(SECRET_PARAM, context.getInitParameter(SECRET_PARAM));
    this.getThreadLocalRequest().getSession()
        .setAttribute(SCOPE_PARAM, context.getInitParameter(SCOPE_PARAM));
    this.getThreadLocalRequest().getSession()
        .setAttribute(CALLBACK_PARAM, context.getInitParameter(CALLBACK_PARAM));
}
private String getFromSession(String param){
    return (String) this.getThreadLocalRequest().getSession().getAttribute(param);
}
}

我最近一直在使用oAuth。内部upgradeLogin（…）当您升级到访问令牌时，您不会获取相应的访问令牌机密。

getAccessToken（）请求之后的访问令牌秘密与请求之前的访问令牌机密不同。您当前正在设置访问令牌机密（通过login.setAccessTokenSecret（oauthTS）），它是您正在使用的预先更新的访问令牌机密值。您需要将其设置为更新请求后返回的访问令牌机密值：

String accesToken = oauthHelper.getAccessToken(oauthParameters);
String accesTokenSecret = oauthParameters.getOAuthTokenSecret();                
login.setTokenSecret(accesToken);
login.setAccessTokenSecret(accesTokenSecret);

您可能还想将此更新的令牌/密钥对存储在某个位置。这是访问令牌secret的值，然后应该在以下行的getPublicCalendar（…）中使用：

oauthParameters.setOAuthTokenSecret(accessTokenSecret);

更新后访问令牌/密钥对是长寿命的，因此可以重复使用（无需再次更新），直到它被撤销为止。

顺便说一句，我发现oAuth游乐场工具在诊断我的问题时很有用。

我希望这能有所帮助，

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