# CommunityWebRequestContext.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception.  You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "http://www.silverpeas.com/legal/licensing"
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     */
    package org.silverpeas.components.community.control;

    import org.silverpeas.components.community.CommunityWebManager;
    import org.silverpeas.components.community.model.CommunityOfUsers;
    import org.silverpeas.core.admin.user.model.SilverpeasRole;
    import org.silverpeas.core.util.MemoizedSupplier;
    import org.silverpeas.core.web.mvc.webcomponent.WebComponentRequestContext;

    import javax.ws.rs.WebApplicationException;
    import java.util.Collection;

    import static javax.ws.rs.core.Response.Status.NOT_FOUND;
    import static org.silverpeas.core.admin.user.model.SilverpeasRole.ADMIN;
    import static org.silverpeas.kernel.util.StringUtil.getBooleanValue;

    /**
     * The execution context of an incoming HTTP request in regard to the application.
     * Any specific treatment related to the incoming requests and to the outgoing responses should be
     * performed here. For example, if you wish to perform some actions before the processing of the
     * request by the Web Component Controller CommunityWebController.
     * Usually, either this class is empty or the WebComponentRequestContext is directly used with
     * the Web Component Controller CommunityWebController.
     */
    public class CommunityWebRequestContext extends
        WebComponentRequestContext<CommunityWebController> {

      private final MemoizedSupplier<CommunityOfUsers> community = new MemoizedSupplier<>(
          () -> CommunityOfUsers.getByComponentInstanceId(getComponentInstanceId())
              .orElseThrow(() -> new WebApplicationException(
                  String.format("Community about instance %s does not exist", getComponentInstanceId()),
                  NOT_FOUND)));

      public CommunityOfUsers getCommunity() {
        return community.get();
      }

      public boolean adminMustValidateNewMember() {
        return getBooleanValue(getInstanceParameterValue("validateNewMember"));
      }

      public boolean canValidateNewMember() {
        return isAdmin() && adminMustValidateNewMember();
      }

      public boolean isSpaceHomePage() {
        return getRequest().getParameterAsBoolean("FromSpaceHomepage") &&
            !getRequest().getParameterAsBoolean("FromSpaceHomepageProxy");
      }

      public boolean isAdmin() {
        return getHighestUserRole().isGreaterThanOrEquals(ADMIN);
      }

      public boolean isMember() {
        return CommunityWebManager.get().isMemberOf(getCommunity());
      }

      public boolean isMembershipPending() {
        return CommunityWebManager.get().isMembershipPendingFor(getCommunity());
      }

      @Override
      public Collection<SilverpeasRole> getUserRoles() {
        return CommunityWebManager.get().getUserRoleOn(getCommunity());
      }

      public boolean displayNbMembersForNonMembers() {
        return getBooleanValue(getInstanceParameterValue("displayNbMembersForNonMembers"));
      }

      public boolean displayCharterOnSpaceHomepage() {
        return getBooleanValue(getInstanceParameterValue("displayCharterOnSpaceHomepage"));
      }
    }