How use SocialAuth with JSF to redirect?

问题

I'm trying to use SocialAuth, the idea is very simple, click in log in with facebook then redirect the user to my website signed in. The log in part I get it, which is below :

1) /index.xhtml

<h:form id="login-facebook">
    <h:commandButton id="login" action="#{socialFacebook.login}" value="Login"/>
</h:form>

2) socialFacebook bean

package controller;


@ManagedBean(name="socialFacebook")
@RequestScoped
public class SocialFacebook implements Serializable{
    private static final long serialVersionUID = -4787254243136316495L;

    private String code;

    @PostConstruct
    public void init(){
        try {
            HttpServletRequest request=(HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
            SocialAuthManager manager = (SocialAuthManager)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("authManager");
            Map<String, String> paramsMap = SocialAuthUtil.getRequestParametersMap(request);
            AuthProvider provider = manager.connect(paramsMap);

            // get profile
            Profile p = provider.getUserProfile();
            System.out.println(p.getFullName());
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public void login(){
        try {
            HttpServletRequest request=(HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

            //Create an instance of SocialAuthConfig object
            SocialAuthConfig config  = SocialAuthConfig.getDefault();

            //load configuration. By default load the configuration from oauth_consumer.properties. 
            //You can also pass input stream, properties object or properties file name.
            config.load(); 

            //Create an instance of SocialAuthManager and set config
            SocialAuthManager manager = new SocialAuthManager();
            manager.setSocialAuthConfig(config);

            //URL of YOUR application which will be called after authentication
            //String successUrl = "http://localhost:8080/cc/pages/system/login_facebook.xhtml" + ";jsessionid=" + req.getSession().getId();
            String successUrl = "http://localhost:8080/cc/pages/system/index.xhtml" + ";jsessionid=" + request.getSession().getId();

            // get Provider URL to which you should redirect for authentication.
            // id can have values "facebook", "twitter", "yahoo" etc. or the OpenID URL
            String url = manager.getAuthenticationUrl("facebook", successUrl);

            // Store in session
            FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("authManager", manager);                
            //redirect to the successful login page
            FacesContext.getCurrentInstance().responseComplete();
            FacesContext.getCurrentInstance().getExternalContext().redirect(url);

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }


    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    }

3) Facebook returned the following URL:

http://localhost:8080/cc/pages/system/home_facebook.xhtml;jsessionid=e143aa975fa3f313c677fbcb03e3?code=AQAmJXdQX0B__zJHXnRyPfgaG1CfNUEEEEEEEEEEEEEEEZJLEpsT5s1spd3KtWGWI2HYaIOZKLkrn8axKs4iKwJVQJwJQB_WSs2iWkp2DDDDDDDDDDDDtdRPLPG7psp6r2PYmn7CTm2QNNha7f1QlgmoZtBsIEF0SSSSSSSSSSSSSSSSSSSSSSS8RutAU8dqI2KDE57f#_=_

4) It pass by my init method as BalusC suggest but always prints nope :( :

@ManagedBean(name="redirectFacebook")
@RequestScoped
public class RedirectFacebook implements Serializable{
    private static final long serialVersionUID = -566276017320074630L;

    private String code;
    private Profile profile;


    @PostConstruct
    public void init(){
        try {
            HttpServletRequest request=(HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
            HttpSession session = (HttpSession) request.getAttribute("jsessionid");

            if (request.getAttribute("code") != null)
                System.out.println("code");
            else
                System.out.println("nope :(");

            if (session != null){
                SocialAuthManager manager = (SocialAuthManager)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("authManager");
                Map<String, String> paramsMap = SocialAuthUtil.getRequestParametersMap(request);
                AuthProvider provider = manager.connect(paramsMap);

                // get profile
                profile = provider.getUserProfile();
                System.out.println(profile.getFullName());
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

5) And it prints nope :( too in my home_facebook page:

<h:form id="redirect-facebook-form">
    <f:metadata>
        <f:viewParam name="code" value="#{redirectFacebook.code}" />
    </f:metadata>
    <h:panelGroup rendered="#{not empty redirectFacebook.profile}"> 
        Hello, you're successfully associated as #{socialFacebook.profile.firstName} on Facebook
    </h:panelGroup>
    <h:panelGroup rendered="#{empty redirectFacebook.profile}"> 
        Nope :(
    </h:panelGroup>
</h:form>

But, I'm a bit confuse how to get the result in my bean and do some verifications as if the user is registered or not for instance. I know, looking some code in Google, that I have to do this, but how can I redirect to my bean and do this and redirect the user to the proper page ?

    SocialAuthManager manager = (SocialAuthManager)FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("authManager");
    Map<String, String> paramsMap = SocialAuthUtil.getRequestParametersMap(request);
    AuthProvider provider = manager.connect(paramsMap);

    // get profile
    Profile p;
    p = provider.getUserProfile();

This is really taking some nights to figure it out. Any idea is very appreaciated, thanks.

回答1:

I don't see any code level issue except you are using localhost in URL. Here is a wiki link which describes how to run application with localhost.

Please let me know if this does not work.

来源：https://stackoverflow.com/questions/15125452/how-use-socialauth-with-jsf-to-redirect