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package eu.dnetlib.openaire.usermanagement;
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import com.google.gson.Gson;
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import org.apache.commons.io.IOUtils;
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import org.apache.http.HttpHeaders;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.methods.HttpDelete;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.log4j.Logger;
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import org.mitre.openid.connect.client.service.impl.StaticClientConfigurationService;
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import org.mitre.openid.connect.model.OIDCAuthenticationToken;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.web.context.support.SpringBeanAutowiringSupport;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.List;
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public class PersonalTokenServlet extends HttpServlet {
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@Value("${oidc.secret}")
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private String secret;
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@Value("${oidc.id}")
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private String id;
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@Value("${oidc.issuer}")
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private String issuer;
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@Autowired
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private StaticClientConfigurationService staticClientConfigurationService;
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private Logger logger = Logger.getLogger(PersonalTokenServlet.class);
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public void init(ServletConfig config) throws ServletException {
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super.init(config);
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SpringBeanAutowiringSupport.processInjectionBasedOnServletContext(this,
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config.getServletContext());
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}
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public void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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response.setContentType("text/html");
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OIDCAuthenticationToken authentication = (OIDCAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
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StringBuilder name = new StringBuilder().append(authentication.getUserInfo().getGivenName().charAt(0));
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name.append(authentication.getUserInfo().getFamilyName().charAt(0));
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request.getSession().setAttribute("name", name.toString());
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request.getSession().setAttribute("accessToken", authentication.getAccessTokenValue());
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request.getSession().setAttribute("refreshToken", authentication.getRefreshTokenValue());
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request.getRequestDispatcher("./personal.jsp").include(request, response);
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}
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public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
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OIDCAuthenticationToken authentication = (OIDCAuthenticationToken) SecurityContextHolder.getContext().getAuthentication();
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String refreshToken = authentication.getRefreshTokenValue();
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List<String> oldRefreshTokens = null;
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try {
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oldRefreshTokens = getOldRefreshTokens(authentication.getRefreshTokenValue(), authentication.getAccessTokenValue());
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deleteOldRefreshTokens(oldRefreshTokens, authentication.getAccessTokenValue());
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} catch (IOException e) {
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logger.error("Error deleting old refresh tokens.", e);
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//TODO should I let user know?
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}
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request.getSession().setAttribute("showRefreshToken", true);
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response.sendRedirect("./personalToken");
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}
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private void deleteOldRefreshTokens(List<String> oldRefreshTokens, String accessToken) throws IOException {
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HttpDelete httpDelete;
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CloseableHttpClient httpclient = HttpClients.createDefault();
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for (String refreshTokenId:oldRefreshTokens) {
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httpDelete = new HttpDelete(issuer + "/api/tokens/refresh/" + refreshTokenId);
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httpDelete.setHeader(HttpHeaders.AUTHORIZATION, "Bearer " + accessToken);
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HttpResponse response = httpclient.execute(httpDelete);
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if (response.getStatusLine().getStatusCode()!=200) {
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logger.warn("Could not delete old refresh tokens." + response.getStatusLine().getStatusCode());
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//System.out.println("Could not delete old refresh tokens." + response.getStatusLine().getStatusCode());//TODO should I throw exception?
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}
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}
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}
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private List<String> getOldRefreshTokens(String currentRefreshToken, String accessToken) throws IOException {
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HttpGet httpGet = new HttpGet(issuer + "/api/tokens/refresh");
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httpGet.setHeader(HttpHeaders.AUTHORIZATION, "Bearer " + accessToken);
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CloseableHttpClient httpclient = HttpClients.createDefault();
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String jsonResponse = IOUtils.toString(httpclient.execute(httpGet).getEntity().getContent(), StandardCharsets.UTF_8.name());
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Gson gson = new Gson();
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List<String> oldRefreshTokens = null;
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for(RefreshToken refreshToken:gson.fromJson(jsonResponse, RefreshToken[].class)){
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if (oldRefreshTokens == null) {
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oldRefreshTokens = new ArrayList<>();
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}
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if (!refreshToken.getValue().equals(currentRefreshToken)) {
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oldRefreshTokens.add(refreshToken.getId()+"");
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}
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}
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return oldRefreshTokens;
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}
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}
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