/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.db;
import org.opencms.file.CmsGroup;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.CmsUser;
import org.opencms.file.history.I_CmsHistoryResource;
import org.opencms.main.CmsException;
import org.opencms.main.CmsRuntimeException;
import org.opencms.main.OpenCms;
import org.opencms.security.CmsPrincipal;
import org.opencms.security.CmsRole;
import org.opencms.security.CmsRoleViolationException;
import org.opencms.util.CmsStringUtil;
import java.util.List;
/**
* Manager that provides methods to subscribe resources to users, read subscribed or unvisited resources and more.<p>
*
* @since 8.0
*/
public class CmsSubscriptionManager {
/** The default maximum number of visited resources to store per user. */
private static final int DEFAULT_MAX_VISITEDCOUNT = 1000;
/** The security manager to access the cms. */
protected CmsSecurityManager m_securityManager;
/** Indicates if the subscription functionality is enabled. */
private boolean m_enabled;
/** Indicates if the configuration can be modified. */
private boolean m_frozen;
/** The maximum number of visited resources to store per user. */
private int m_maxVisitedCount;
/** The name of the database pool to use. */
private String m_poolName;
/**
* Initializes a new CmsSubscriptionManager, called from the configuration.<p>
*/
public CmsSubscriptionManager() {
m_frozen = false;
}
/**
* Returns the date when the resource was last visited by the user.<p>
*
* @param cms the current users context
* @param user the user to check the date
* @param resource the resource to check the date
*
* @return the date when the resource was last visited by the user
*
* @throws CmsException if something goes wrong
*/
public long getDateLastVisitedBy(CmsObject cms, CmsUser user, CmsResource resource) throws CmsException {
return m_securityManager.getDateLastVisitedBy(cms.getRequestContext(), getPoolName(), user, resource);
}
/**
* Returns the date when the resource was last visited by the user.<p>
*
* @param cms the current users context
* @param user the user to check the date
* @param resourcePath the name of the resource to check the date
*
* @return the date when the resource was last visited by the user
*
* @throws CmsException if something goes wrong
*/
public long getDateLastVisitedBy(CmsObject cms, CmsUser user, String resourcePath) throws CmsException {
CmsResource resource = cms.readResource(resourcePath, CmsResourceFilter.ALL);
return m_securityManager.getDateLastVisitedBy(cms.getRequestContext(), getPoolName(), user, resource);
}
/**
* Returns the maximum number of visited resources to store per user.<p>
*
* @return the maximum number of visited resources to store per user
*/
public int getMaxVisitedCount() {
if (m_maxVisitedCount < 1) {
m_maxVisitedCount = DEFAULT_MAX_VISITEDCOUNT;
}
return m_maxVisitedCount;
}
/**
* Returns the name of the database pool to use.<p>
*
* @return the name of the database pool to use
*/
public String getPoolName() {
if (CmsStringUtil.isEmpty(m_poolName)) {
// use default pool as pool name
m_poolName = OpenCms.getSqlManager().getDefaultDbPoolName();
}
return m_poolName;
}
/**
* Initializes this subscription manager with the OpenCms system configuration.<p>
*
* @param cms an OpenCms context object that must have been initialized with "Admin" permissions
*
* @throws CmsRoleViolationException in case the given opencms object does not have <code>{@link CmsRole#ROOT_ADMIN}</code> permissions
*/
public void initialize(CmsObject cms) throws CmsRoleViolationException {
OpenCms.getRoleManager().checkRole(cms, CmsRole.ROOT_ADMIN);
m_frozen = true;
}
/**
* Returns if the subscription functionality is enabled.<p>
*
* @return <code>true</code> if the subscription functionality is enabled, otherwise <code>false</code>
*/
public boolean isEnabled() {
return m_enabled && (m_securityManager != null) && m_securityManager.isSubscriptionDriverAvailable();
}
/**
* Mark the given resource as visited by the user.<p>
*
* @param cms the current users context
* @param resource the resource to mark as visited
* @param user the user that visited the resource
*
* @throws CmsException if something goes wrong
*/
public void markResourceAsVisitedBy(CmsObject cms, CmsResource resource, CmsUser user) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.markResourceAsVisitedBy(cms.getRequestContext(), getPoolName(), resource, user);
}
/**
* Mark the given resource as visited by the user.<p>
*
* @param cms the current users context
* @param resourcePath the name of the resource to mark as visited
* @param user the user that visited the resource
*
* @throws CmsException if something goes wrong
*/
public void markResourceAsVisitedBy(CmsObject cms, String resourcePath, CmsUser user) throws CmsException {
CmsResource resource = cms.readResource(resourcePath, CmsResourceFilter.ALL);
markResourceAsVisitedBy(cms, resource, user);
}
/**
* Returns all resources subscribed by the given user or group.<p>
*
* @param cms the current users context
* @param principal the principal to read the subscribed resources
*
* @return all resources subscribed by the given user or group
*
* @throws CmsException if something goes wrong
*/
public List<CmsResource> readAllSubscribedResources(CmsObject cms, CmsPrincipal principal) throws CmsException {
return m_securityManager.readAllSubscribedResources(cms.getRequestContext(), getPoolName(), principal);
}
/**
* Returns the resources that were visited by a user set in the filter.<p>
*
* @param cms the current users context
* @param filter the filter that is used to get the visited resources
*
* @return the resources that were visited by a user set in the filter
*
* @throws CmsException if something goes wrong
*/
public List<CmsResource> readResourcesVisitedBy(CmsObject cms, CmsVisitedByFilter filter) throws CmsException {
return m_securityManager.readResourcesVisitedBy(cms.getRequestContext(), getPoolName(), filter);
}
/**
* Returns the subscribed history resources that were deleted.<p>
*
* @param cms the current users context
* @param user the user that subscribed to the resource
* @param includeGroups indicates if the users groups should also be checked for subscribed deleted resources
* @param folderPath the folder path of the deleted resources, if <code>null</code> all deleted resources will be returned
* @param includeSubFolders indicates if the sub folders of the specified folder path should be considered, too
* @param deletedFrom the time stamp from which the resources should have been deleted
*
* @return the subscribed history resources that were deleted
*
* @throws CmsException if something goes wrong
*/
public List<I_CmsHistoryResource> readSubscribedDeletedResources(
CmsObject cms,
CmsUser user,
boolean includeGroups,
String folderPath,
boolean includeSubFolders,
long deletedFrom) throws CmsException {
List<CmsGroup> groups = null;
if (includeGroups) {
try {
groups = cms.getGroupsOfUser(user.getName(), false);
} catch (CmsException e) {
// failed to set user groups
}
}
CmsResource resource = null;
if (CmsStringUtil.isNotEmpty(folderPath)) {
resource = cms.readResource(folderPath, CmsResourceFilter.ALL);
}
return m_securityManager.readSubscribedDeletedResources(
cms.getRequestContext(),
getPoolName(),
user,
groups,
resource,
includeSubFolders,
deletedFrom);
}
/**
* Returns the resources that were subscribed by a user or group set in the filter.<p>
*
* @param cms the current users context
* @param filter the filter that is used to get the subscribed resources
*
* @return the resources that were subscribed by a user or group set in the filter
*
* @throws CmsException if something goes wrong
*/
public List<CmsResource> readSubscribedResources(CmsObject cms, CmsSubscriptionFilter filter) throws CmsException {
return m_securityManager.readSubscribedResources(cms.getRequestContext(), getPoolName(), filter);
}
/**
* Sets if the subscription functionality is enabled.<p>
*
* @param enabled the flag indicating if the subscription functionality is enabled
*/
public void setEnabled(boolean enabled) {
if (m_frozen) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_CONFIG_SUBSCRIPTIONMANAGER_FROZEN_0));
}
m_enabled = enabled;
}
/**
* Sets if the subscription functionality is enabled.<p>
*
* @param enabled the flag indicating if the subscription functionality is enabled
*/
public void setEnabled(String enabled) {
if (m_frozen) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_CONFIG_SUBSCRIPTIONMANAGER_FROZEN_0));
}
m_enabled = Boolean.valueOf(enabled).booleanValue();
}
/**
* Sets the maximum number of visited resources to store per user.<p>
*
* @param maxVisitedCount the maximum number of visited resources to store per user
*/
public void setMaxVisitedCount(String maxVisitedCount) {
if (m_frozen) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_CONFIG_SUBSCRIPTIONMANAGER_FROZEN_0));
}
try {
int intValue = Integer.parseInt(maxVisitedCount);
m_maxVisitedCount = (intValue > 0) ? intValue : DEFAULT_MAX_VISITEDCOUNT;
} catch (NumberFormatException e) {
// use default value
m_maxVisitedCount = DEFAULT_MAX_VISITEDCOUNT;
}
}
/**
* Sets the name of the database pool to use.<p>
*
* @param poolName the name of the database pool to use
*/
public void setPoolName(String poolName) {
if (m_frozen) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_CONFIG_SUBSCRIPTIONMANAGER_FROZEN_0));
}
m_poolName = poolName;
}
/**
* Sets the security manager during initialization.<p>
*
* @param securityManager the security manager
*/
public void setSecurityManager(CmsSecurityManager securityManager) {
if (m_frozen) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_CONFIG_SUBSCRIPTIONMANAGER_FROZEN_0));
}
m_securityManager = securityManager;
}
/**
* Marks a subscribed resource as deleted.<p>
*
* @param cms the current users context
* @param resource the subscribed resource to mark as deleted
*
* @throws CmsException if something goes wrong
*/
public void setSubscribedResourceAsDeleted(CmsObject cms, CmsResource resource) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.setSubscribedResourceAsDeleted(cms.getRequestContext(), getPoolName(), resource);
}
/**
* Subscribes the user or group to the resource.<p>
*
* @param cms the current users context
* @param principal the principal that subscribes to the resource
* @param resource the resource to subscribe to
*
* @throws CmsException if something goes wrong
*/
public void subscribeResourceFor(CmsObject cms, CmsPrincipal principal, CmsResource resource) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.subscribeResourceFor(cms.getRequestContext(), getPoolName(), principal, resource);
}
/**
* Subscribes the user or group to the resource.<p>
*
* @param cms the current users context
* @param principal the principal that subscribes to the resource
* @param resourcePath the name of the resource to subscribe to
*
* @throws CmsException if something goes wrong
*/
public void subscribeResourceFor(CmsObject cms, CmsPrincipal principal, String resourcePath) throws CmsException {
CmsResource resource = cms.readResource(resourcePath, CmsResourceFilter.ALL);
subscribeResourceFor(cms, principal, resource);
}
/**
* Unsubscribes all deleted resources that were deleted before the specified time stamp.<p>
*
* @param cms the current users context
* @param deletedTo the time stamp to which the resources have been deleted
*
* @throws CmsException if something goes wrong
*/
public void unsubscribeAllDeletedResources(CmsObject cms, long deletedTo) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.unsubscribeAllDeletedResources(cms.getRequestContext(), getPoolName(), deletedTo);
}
/**
* Unsubscribes the user or group from all resources.<p>
*
* @param cms the current users context
* @param principal the principal that unsubscribes from all resources
*
* @throws CmsException if something goes wrong
*/
public void unsubscribeAllResourcesFor(CmsObject cms, CmsPrincipal principal) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.unsubscribeAllResourcesFor(cms.getRequestContext(), getPoolName(), principal);
}
/**
* Unsubscribes the principal from the resource.<p>
*
* @param cms the current users context
* @param principal the principal that unsubscribes from the resource
* @param resource the resource to unsubscribe from
*
* @throws CmsException if something goes wrong
*/
public void unsubscribeResourceFor(CmsObject cms, CmsPrincipal principal, CmsResource resource) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.unsubscribeResourceFor(cms.getRequestContext(), getPoolName(), principal, resource);
}
/**
* Unsubscribes the principal from the resource.<p>
*
* @param cms the current users context
* @param principal the principal that unsubscribes from the resource
* @param resourcePath the name of the resource to unsubscribe from
*
* @throws CmsException if something goes wrong
*/
public void unsubscribeResourceFor(CmsObject cms, CmsPrincipal principal, String resourcePath) throws CmsException {
CmsResource resource = cms.readResource(resourcePath, CmsResourceFilter.ALL);
unsubscribeResourceFor(cms, principal, resource);
}
/**
* Unsubscribes all groups and users from the resource.<p>
*
* @param cms the current users context
* @param resource the resource to unsubscribe all groups and users from
*
* @throws CmsException if something goes wrong
*/
public void unsubscribeResourceForAll(CmsObject cms, CmsResource resource) throws CmsException {
if (!isEnabled()) {
throw new CmsRuntimeException(Messages.get().container(Messages.ERR_SUBSCRIPTION_MANAGER_DISABLED_0));
}
m_securityManager.unsubscribeResourceForAll(cms.getRequestContext(), getPoolName(), resource);
}
/**
* Unsubscribes all groups and users from the resource.<p>
*
* @param cms the current users context
* @param resourcePath the name of the resource to unsubscribe all groups and users from
*
* @throws CmsException if something goes wrong
*/
public void unsubscribeResourceForAll(CmsObject cms, String resourcePath) throws CmsException {
CmsResource resource = cms.readResource(resourcePath, CmsResourceFilter.ALL);
unsubscribeResourceForAll(cms, resource);
}
}