managerights.java

java 写的一个新闻发布系统

//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//

package org.jahia.engines.rights;

import java.util.*;

import javax.servlet.http.HttpSession;

import org.jahia.engines.JahiaEngine;
import org.jahia.engines.users.SelectUG_Engine;
import org.jahia.exceptions.JahiaException;
import org.jahia.exceptions.JahiaSessionExpirationException;
import org.jahia.params.ParamBean;
import org.jahia.registries.ServicesRegistry;
import org.jahia.services.acl.*;
import org.jahia.services.usermanager.*;
import org.jahia.utils.JahiaConsole;
import org.jahia.utils.JahiaString;
import org.jahia.utils.JahiaTools;

/**
 *
 * <p>Title: Jahia</p>
 * <p>Description: CMS Enterprise Portal</p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: Jahia SA</p>
 * @author map
 * @version 1.0
 */
public class ManageRights {

    private static ManageRights theObject = null;
    private static final String JSP_FILE = "/jsp/jahia/engines/rights/manage_rights.jsp";
    private static final String CLASS_NAME = ManageRights.class.getName();

    /**
     * @return a single instance of the object
     */
    public static synchronized ManageRights getInstance()
    {
        if (theObject == null) {
            theObject = new ManageRights();
        }
        return theObject;
    }

    /**
     *
     * @param jParams   a ParamBean object
     * @param mode      the mode, according to JahiaEngine
     * @param engineMap the engine parameters stored in a HashMap
     * @param aclID     the ACL DB identifier from "jahia_acl" table
     * @return true     if action was executed whithout problem
     * @throws JahiaException
     * @throws JahiaSessionExpirationException
     * @see    org.jahia.engines.JahiaEngine
     */
    public boolean handleActions (ParamBean jParams, int mode, HashMap engineMap, int aclID)
    throws  JahiaException, JahiaSessionExpirationException
    {
        JahiaBaseACL theACL = null;
        try {
            theACL = new JahiaBaseACL (aclID);
        }
        catch (ACLNotFoundException ex) {
            return false;
        }
        catch (JahiaException ex) {
            return false;
        }
        HttpSession session = jParams.getSession();
        session.setAttribute ("jahia_session_acl", theACL);
        switch (mode) {
            case (JahiaEngine.LOAD_MODE) :
                return loadACLEntries(jParams, engineMap, theACL);
            case (JahiaEngine.UPDATE_MODE) :
                return update( jParams, engineMap, theACL );
            case (JahiaEngine.SAVE_MODE) :
                return saveACLEntries( jParams, engineMap, theACL );
        }
        return false;
    }

    /**
     * Load all the ACL entries and inherited ACL from parent object. Format the
     * output to the following string sequence :<br>
     *      [usr/grptype permStr provider usr/grpname properties]<br><br>
     * Where :
     *      <li>usr/grptype, indicate if the entry is a user or a group<br>
     *      <li>permStr, is the permissions sequence : Admin, write, rights accesses<br>
     *      <li>provider, is the source where the user and the group are coming from<br>
     *      <li>usr/grpname, is the username or the groupname<br>
     *      <li>properties, is the user firstname following by the user lastname or
     *          the user e-mail. Is the group member name for the group.<br><br>
     * Example :<br>
     *      u jahia  -wr  gdupont      G閞ard Dupont<br>
     * @param jParams   a Parambean object
     * @param engineMap the engine parameters stored in a HashMap
     * @param acl       the ACL DB identifier from "jahia_acl" table
     * @return  true if the entries are loaded successfully
     * @throws JahiaException when acl "getID" failed or when renderLink to
     *  select user popup failed.
     */
    private boolean loadACLEntries(ParamBean jParams, HashMap engineMap, JahiaBaseACL acl)
    throws JahiaException
    {
        JahiaConsole.println(CLASS_NAME + ".loadACLEntries", "Load ACL entries in ManageRights - AclID: " + acl.getID());
        JahiaConsole.println(CLASS_NAME + ".loadACLEntries", acl.toString());
        ArrayList aclEntries = new ArrayList();
        // Lookup for USER ACL entries and inherited ACL
        Vector userList = acl.getUsernameList(null);
        Enumeration userListEnum = userList.elements();
        while (userListEnum.hasMoreElements()) {
            String userKey = (String)userListEnum.nextElement();
            JahiaConsole.println(CLASS_NAME + ".loadACLEntries", userKey);
            JahiaUser user = ServicesRegistry.getInstance().getJahiaUserManagerService().lookupUser(userKey);
            if (user != null) {
                // Construct permissions string
                String permStr = getPermissionsAsString(user, acl, jParams);
                // Where does the user coming from ?
                String provider = JahiaString.adjustStringSize(user.
                    getProviderName(), 6) + " ";

                // Construct a displayable username
                String usrname = JahiaString.adjustStringSize(user.getUsername(),
                    10);
                // Find a displayable user property
                String properties = "";
                String firstname = user.getProperty("firstname");
                String lastname = user.getProperty("lastname");
                if (firstname != null) {
                    properties += firstname;
                    if (firstname.length() < 20)
                        properties += " ";
                }
                if (lastname != null)
                    properties += lastname;
                if ("".equals(properties)) {
                    String email = user.getProperty("email");
                    if (email != null)
                        properties += email;
                }
                properties = JahiaString.adjustStringSize(properties, 20);
                // Construct select option text
                String aclEntryStr = "u " + permStr + " " + provider + usrname +
                    " " + properties;
                // Construct select option value
                String value = "00000000" + permStr + usrname + "u" + userKey;
                aclEntries.add(JahiaTools.replacePattern(value, " ", "&nbsp;"));
                aclEntries.add(JahiaTools.replacePattern(aclEntryStr, " ",
                    "&nbsp;"));
            } else {
                JahiaConsole.println(CLASS_NAME + ".loadACLEntries",
                                     "Ignoring ACL entry for userKey " +
                                     userKey +
                                     " as the user could not be found !");
            }
        }

        // Look up group
        Vector groupList = acl.getGroupnameListNoAdmin(null);
        Enumeration groupListEnum = groupList.elements();
        while (groupListEnum.hasMoreElements()) {
            String groupKey = (String)groupListEnum.nextElement();
            JahiaConsole.println(CLASS_NAME + ".loadACLEntries", groupKey);
            JahiaGroup group = ServicesRegistry.getInstance().getJahiaGroupManagerService().lookupGroup(groupKey);
            // Construct permissions string
            String permStr = getPermissionsAsString(group, acl, jParams);
            // Where does the group coming from ?
            String provider = JahiaString.adjustStringSize(group.getProviderName(), 6) + " ";

            // Construct a displayable groupname
            String grpname = JahiaString.adjustStringSize(group.getGroupname(), 10);
            // Find some group members for properties
            Enumeration grpMembers = group.members();
            String members = "(";
            while (grpMembers.hasMoreElements()) {
                Object obj = (Object)grpMembers.nextElement();
                if (obj instanceof JahiaUser) {
                    JahiaUser tmpUser = (JahiaUser)obj;
                    members += tmpUser.getUsername();