D-Net

package eu.dnetlib.repo.manager.config;

import com.google.gson.Gson;

import com.google.gson.JsonObject;

import com.google.gson.JsonParser;

import org.apache.log4j.Logger;

import org.mitre.openid.connect.model.OIDCAuthenticationToken;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.security.core.Authentication;

import org.springframework.security.web.authentication.AuthenticationSuccessHandler;

import org.springframework.session.FindByIndexNameSessionRepository;

import javax.servlet.ServletException;

import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

import java.net.URLEncoder;

import java.util.Base64;

import java.util.Date;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class FrontEndLinkURIAuthenticationSuccessHandler implements AuthenticationSuccessHandler {

    private String frontEndURI;

    private static final Logger LOGGER = Logger

            .getLogger(FrontEndLinkURIAuthenticationSuccessHandler.class);

    public void init() {

        LOGGER.debug("Front end uri : " + frontEndURI);

    }

    @Value("${aai.mode}")

    private String aai_mode;

    @Override

    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {

        OIDCAuthenticationToken authOIDC = (OIDCAuthenticationToken) authentication;

        request.getSession().setAttribute(FindByIndexNameSessionRepository.PRINCIPAL_NAME_INDEX_NAME, authOIDC.getUserInfo().getEmail());

        JsonObject userInfo = new JsonObject();

        if (authOIDC.getUserInfo().getSub() == null)

            userInfo.addProperty("sub", "");

        else

            userInfo.addProperty("sub", URLEncoder.encode(authOIDC.getUserInfo().getSub(), "UTF-8"));

        if (authOIDC.getUserInfo().getName() != null)

            userInfo.addProperty("fullname", URLEncoder.encode(authOIDC.getUserInfo().getName(), "UTF-8"));

        if (authOIDC.getUserInfo().getGivenName() == null)

            userInfo.addProperty("firstname", "");

        else

            userInfo.addProperty("firstname", URLEncoder.encode(authOIDC.getUserInfo().getGivenName(), "UTF-8") + "");

        if (authOIDC.getUserInfo().getFamilyName() == null)

            userInfo.addProperty("lastname", "");

        else

            userInfo.addProperty("lastname", URLEncoder.encode(authOIDC.getUserInfo().getFamilyName(), "UTF-8") + "");

        userInfo.addProperty("email", authOIDC.getUserInfo().getEmail() + "");

//        if (authOIDC.getUserInfo().getSource().getAsJsonArray("edu_person_entitlements") == null)

//            userInfo.addProperty("role", "");

//        else

//            userInfo.addProperty("role", URLEncoder.encode(authOIDC.getUserInfo()

//                    .getSource().getAsJsonArray("edu_person_entitlements").toString(), "UTF-8") + "");

        Cookie accessToken = new Cookie("AccessToken", authOIDC.getAccessTokenValue());

        String regex = "^([A-Za-z0-9-_=]+)\\.([A-Za-z0-9-_=]+)\\.?([A-Za-z0-9-_.+=]*)$";

        Matcher matcher = Pattern.compile(regex).matcher(authOIDC.getAccessTokenValue());

        if (matcher.find()) {

            long exp = new JsonParser().parse(new String(Base64.getDecoder().decode(matcher.group(2)))).getAsJsonObject().get("exp").getAsLong();

            accessToken.setMaxAge((int) (exp - (new Date().getTime() / 1000)));

        } else {

            accessToken.setMaxAge(3600);

        }

        if (aai_mode.equalsIgnoreCase("production") || aai_mode.equalsIgnoreCase("beta"))

            accessToken.setDomain(".openaire.eu");

        accessToken.setPath("/");

        Cookie openAIREUser = new Cookie("openAIREUser", URLEncoder.encode(new Gson().toJson(userInfo), "UTF-8"));

        openAIREUser.setMaxAge(accessToken.getMaxAge());

        openAIREUser.setPath("/");

        if (aai_mode.equalsIgnoreCase("production") || aai_mode.equalsIgnoreCase("beta"))

            openAIREUser.setDomain(".openaire.eu");

//        if (frontDomain!=null) {

//            accessToken.setDomain(frontDomain);

//            // openAIREUser.setDomain(frontDomain);

//        }

        response.addCookie(openAIREUser);

        response.addCookie(accessToken);

        response.sendRedirect(frontEndURI);

    }

    public String getFrontEndURI() {

        return frontEndURI;

    }

    public void setFrontEndURI(String frontEndURI) {

        this.frontEndURI = frontEndURI;

    }

}