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package eu.dnetlib.openaire.usermanagement;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import eu.dnetlib.openaire.user.pojos.RegisteredService;
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import eu.dnetlib.openaire.usermanagement.utils.RegisteredServicesUtils;
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import eu.dnetlib.openaire.usermanagement.utils.TokenUtils;
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import org.apache.http.HttpResponse;
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import org.apache.log4j.Logger;
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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.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.sql.SQLException;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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public class RegisteredServicesServlet extends HttpServlet {
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private Logger logger = Logger.getLogger(RegisteredServicesServlet.class);
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@Autowired
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private RegisteredServicesUtils registeredServicesUtils;
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@Autowired
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private TokenUtils tokenUtils;
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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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request.getSession().setAttribute("authenticated",
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!SecurityContextHolder.getContext().getAuthentication().getPrincipal().toString()
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.equals("anonymousUser"));
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OIDCAuthenticationToken authentication = (OIDCAuthenticationToken) SecurityContextHolder.
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getContext().getAuthentication();
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String userId = authentication.getSub();
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List<RegisteredService> registeredServices = null;
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try {
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registeredServices = registeredServicesUtils.
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getRegisteredServiceDao().fetchAllRegisteredServicesByOwner(userId);
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//System.out.println("LOAD REGISTERED SERVICES. " + registeredServices.size());
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if (registeredServices.isEmpty()) {
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request.getSession().setAttribute("showEmptyList", true);
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} else {
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Map<String, ServiceResponse> serviceResponses = new HashMap<>();
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Map<String, String> serviceKey = new HashMap<>();
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for (RegisteredService registeredService:registeredServices) {
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ServiceResponse serviceResponse = tokenUtils.getRegisteredService(registeredService.getClientId(),registeredService.getRegistrationAccessToken());
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serviceResponses.put(registeredService.getId(), serviceResponse);
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serviceKey.put(registeredService.getId(), extractPublicKeySet(serviceResponse));
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}
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boolean reachedLimit = reachedMaximumNumberOfServices(registeredServices);
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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("reachedLimit", reachedLimit);
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//System.out.println("REACHED LIMIT??? " + reachedLimit);
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request.getSession().setAttribute("services", serviceResponses);
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request.getSession().setAttribute("keys", serviceKey);
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}
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request.getSession().setAttribute("registeredServices", registeredServices);
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} catch (SQLException sqle) {
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logger.error("Error fetching registered services for user " + userId , sqle);
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request.getSession().setAttribute("message", "Error fetching registered services. " +
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"Please try again later.");
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request.getSession().setAttribute("showEmptyList", false);
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request.getRequestDispatcher("./registeredServices.jsp").include(request, response);
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}
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response.setContentType("text/html");
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request.getRequestDispatcher("./registeredServices.jsp").include(request, response);
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}
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private String extractPublicKeySet(ServiceResponse serviceResponse) {
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if (serviceResponse.getJwksUri()!=null && !serviceResponse.getJwksUri().isEmpty())
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return serviceResponse.getJwksUri();
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return extractJSONJwk(serviceResponse.getJwks());
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}
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private String extractJSONJwk(Jwks jwks) {
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Gson gson = new GsonBuilder().setPrettyPrinting().create();
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//System.out.println(gson.toJson(jwks));
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return gson.toJson(jwks);
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}
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@Override
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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OIDCAuthenticationToken authentication = (OIDCAuthenticationToken) SecurityContextHolder.
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getContext().getAuthentication();
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String id = request.getParameter("id");
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//System.out.println("POST " +id);
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if (id!=null && !id.isEmpty()) {
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try {
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RegisteredService registeredService = registeredServicesUtils.getRegisteredServiceDao().fetchRegisteredServiceById(Integer.parseInt(id));
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if (!registeredService.getOwner().equals(authentication.getSub())) {
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request.getSession().setAttribute("message", "You are not allowed to delete the service.");
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//System.out.println("BLOCKED " + registeredService.getOwner() + " >> " + authentication.getSub());
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response.sendRedirect("./registeredServices");
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return;
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}
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HttpResponse resp = tokenUtils.deleteService(registeredService.getClientId(), registeredService.getRegistrationAccessToken());
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int statusCode = resp.getStatusLine().getStatusCode();
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//System.out.println("STATUS CODE " + statusCode);
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if (statusCode != 204) {
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logger.error("Unable to delete the service. Status code was " + statusCode);
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request.getSession().setAttribute("message", "Fail to delete the service. Status " + statusCode);
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//System.out.println("AAI blocked");
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response.sendRedirect("./registeredServices");
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return;
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} else {
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registeredServicesUtils.getRegisteredServiceDao().delete(Integer.parseInt(id));
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request.getSession().setAttribute("success", "The service was successfully deleted.");
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//System.out.println("HERE HERE");
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}
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} catch (SQLException sqle) {
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logger.error("Unable to contact db.", sqle);
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request.getSession().setAttribute("message", "Fail to delete the service. Please try again later.");
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}
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} else {
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request.getSession().setAttribute("message", "Error selecting service to delete. Please try again.");
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}
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response.sendRedirect("./registeredServices");
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}
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private boolean reachedMaximumNumberOfServices(List<RegisteredService> registeredServices) {
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return registeredServices.size() >= 5;
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}
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}
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