Subversion Repositories general

package ak.hostadmiral.core.action;

import java.util.List;

import java.util.Collection;

import java.util.Collections;

import java.util.ArrayList;

import java.util.HashSet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.DynaActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMessages;

import org.apache.struts.action.ActionErrors;

import org.apache.struts.action.ActionError;

import ak.strutsx.RequestUtilsX;

import ak.strutsx.ErrorHandlerX;

import ak.backpath.BackPath;

import ak.hostadmiral.util.StringConverter;

import ak.hostadmiral.util.UserException;

import ak.hostadmiral.util.CollectionInfo;

import ak.hostadmiral.core.CoreResources;

import ak.hostadmiral.core.model.User;

import ak.hostadmiral.core.model.UserManager;

public final class UserAction

	extends Action

	implements ErrorHandlerX

{

	public static final int PAGE_SIZE = 20;

	public void handleErrors(ActionMapping mapping, ActionForm form,

			 HttpServletRequest request, HttpServletResponse response)

		throws Exception

	{

		ActionUtils.prepare(request, response);

		if("submit".equals(mapping.getParameter())) {

			User user = (User)request.getSession().getAttribute("user");

			initUserList(request, user);

			DynaActionForm theForm = (DynaActionForm)form;

			Long           userId;

			User           u;

			try {

				userId = StringConverter.parseLong(theForm.get("id"));

			}

			catch(NumberFormatException ex) {

				userId = null;

			}

			if(userId == null)

				u = UserManager.getInstance().create(user);

			else

				u = UserManager.getInstance().get(user, userId);

			request.setAttribute("u", u);

		}

	}

	public ActionForward execute(ActionMapping mapping, ActionForm form,

			HttpServletRequest request, HttpServletResponse response)

		throws Exception

	{

		ActionUtils.prepare(request, response);

		User user = (User)request.getSession().getAttribute("user");

		if("list".equals(mapping.getParameter())) {

			DynaActionForm theForm  = (DynaActionForm)form;

			Long           page     = StringConverter.parseLong(theForm.get("pg"));

			CollectionInfo listInfo = new CollectionInfo();

			Collection     list     = UserManager.getInstance().listUsers(

				listInfo, PAGE_SIZE, (page == null) ? 0 : page.intValue(),

				new Integer[] { UserManager.SORT_LOGIN }, user);

			request.setAttribute("users",    list);

			request.setAttribute("listInfo", listInfo);

			request.setAttribute("allowedToCreate",

				Boolean.valueOf(UserManager.getInstance().allowedToCreate(user)));

			request.setAttribute("mayViewAllLogins", Boolean.valueOf(user.mayViewAllLogins()));

			return mapping.findForward("default");

		}

		else if("edit".equals(mapping.getParameter())) {

			DynaActionForm theForm  = (DynaActionForm)form;

			Long           userId   = StringConverter.parseLong(theForm.get("id"));

			User           u;

			DynaActionForm showForm = (DynaActionForm)RequestUtilsX.populateActionForm(

				this, request, "UserEditForm");

			if(userId == null) {

				u = UserManager.getInstance().create(user);

				showForm.set("enabled", Boolean.TRUE);

			}

			else {

				u = UserManager.getInstance().get(user, userId);

				showForm.set("login",     u.getLogin());

				if(u.getBoss() != null)

					showForm.set("boss", StringConverter.toString(u.getBoss().getId()));

				showForm.set("superuser", u.getSuperuser());

				showForm.set("locale",    u.getLocale().toString());

				showForm.set("enabled",   u.getEnabled());

				showForm.set("comment",   u.getComment());

			}

			initUserList(request, user);

			request.setAttribute("u", u);

			if(u.editableBy(user))

				return mapping.findForward("default");

			else

				return mapping.findForward("view");

		}

		else if("partedit".equals(mapping.getParameter())) {

			DynaActionForm theForm  = (DynaActionForm)form;

			Long           userId   = StringConverter.parseLong(theForm.get("id"));

			User           u        = UserManager.getInstance().get(user, userId);

			DynaActionForm showForm = (DynaActionForm)RequestUtilsX.populateActionForm(

				this, request, "UserPartEditForm");

			showForm.set("locale", u.getLocale().toString());

			initUserList(request, user);

			request.setAttribute("u", u);

			return mapping.findForward("default");

		}

		else if("deleting".equals(mapping.getParameter())) {

			DynaActionForm theForm  = (DynaActionForm)form;

			Long           userId   = StringConverter.parseLong(theForm.get("id"));

			User           u        = UserManager.getInstance().get(user, userId);

			request.setAttribute("action",  "/user/delete.do");

			request.setAttribute("object",  u);

			request.setAttribute("cascade",

				UserManager.getInstance().beforeDelete(user, u, new HashSet()));

			return mapping.findForward("default");

		}

		else if("delete".equals(mapping.getParameter())) {

			DynaActionForm theForm  = (DynaActionForm)form;

			Long           userId   = StringConverter.parseLong(theForm.get("id"));

			User           u        = UserManager.getInstance().get(user, userId);

			request.setAttribute("u", u);

			if(u.equals(user)) {

				handleErrors(mapping, form, request, response);

				throw new UserException(CoreResources.DELETE_ME_SELF);

            }

			// FIXME: invalidate session of deleted user if it is logged in

            // FIXME: if two admins delete each other at the same time

			UserManager.getInstance().delete(user, u);

			response.sendRedirect(BackPath.findBackPath(request).getBackwardUrl());

			return null;

		}

		else if("submit".equals(mapping.getParameter())) {

			DynaActionForm theForm  = (DynaActionForm)form;

			Long           userId   = StringConverter.parseLong(theForm.get("id"));

			User           u;

            String         password = (String)theForm.get("password");

			if(userId == null) {

	            if(password == null || password.equals("")) {

					handleErrors(mapping, form, request, response);

	            	throw new UserException(CoreResources.PASSWORD_REQUIRED);

    			}

				u = UserManager.getInstance().create(user);

			}

			else {

				u = UserManager.getInstance().get(user, userId);

			}

			request.setAttribute("u", u);

			String login = (String)theForm.get("login");

            if(UserManager.getInstance().loginExists(user, u, login)) {

				handleErrors(mapping, form, request, response);

            	throw new UserException(CoreResources.NONUNIQUE_USER_LOGIN);

            }

			u.setLogin(user, login);

			if(u.mayChangeBoss(user)) {

				Long bossId = StringConverter.parseLong(theForm.get("boss"));

				if(bossId == null)

					u.setBoss(user, null);

				else

					u.setBoss(user, UserManager.getInstance().get(user, bossId));

			}

			if(u.editableBy(user)) {

				u.setLocaleName(user, (String)theForm.get("locale"));

				u.setEnabled(user, (Boolean)theForm.get("enabled"));

				u.setComment(user, (String)theForm.get("comment"));

			}

			if(u.mayChangeSuperuser(user))

				u.setSuperuser(user, (Boolean)theForm.get("superuser"));

            if(password != null && !password.equals("")

            	&& u.editableBy(user)          // more strong condition, because normal

            	&& u.partEditableBy(user))     // user have to enter first the old password

            {

            	u.setPassword(user, password);

            }

			UserManager.getInstance().save(user, u);

			response.sendRedirect(BackPath.findBackPath(request).getBackwardUrl());

			return null;

		}

		else if("partsubmit".equals(mapping.getParameter())) {

			DynaActionForm theForm = (DynaActionForm)form;

			Long           userId  = StringConverter.parseLong(theForm.get("id"));

			User           u       = UserManager.getInstance().get(user, userId);

			u.setLocaleName(user, (String)theForm.get("locale"));

			UserManager.getInstance().save(user, u);

			response.sendRedirect(BackPath.findBackPath(request).getBackwardUrl());

			return null;

		}

		else {

			throw new Exception("unknown mapping parameter");

		}

	}

	private void initUserList(HttpServletRequest request, User user)

		throws Exception

	{

		List list = new ArrayList(UserManager.getInstance().listUsers(user));

		Collections.sort(list, UserManager.LOGIN_COMPARATOR);

		request.setAttribute("users", list);

	}

}