/*
* LinShare is an open source filesharing software, part of the LinPKI software
* suite, developed by Linagora.
*
* Copyright (C) 2015 LINAGORA
*
* 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, provided you comply with the Additional Terms applicable for
* LinShare software by Linagora pursuant to Section 7 of the GNU Affero General
* Public License, subsections (b), (c), and (e), pursuant to which you must
* notably (i) retain the display of the “LinShare™” trademark/logo at the top
* of the interface window, the display of the “You are using the Open Source
* and free version of LinShare™, powered by Linagora © 2009–2015. Contribute to
* Linshare R&D by subscribing to an Enterprise offer!” infobox and in the
* e-mails sent with the Program, (ii) retain all hypertext links between
* LinShare and linshare.org, between linagora.com and Linagora, and (iii)
* refrain from infringing Linagora intellectual property rights over its
* trademarks and commercial brands. Other Additional Terms apply, see
* <http://www.linagora.com/licenses/> for more details.
*
* 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 and
* its applicable Additional Terms for LinShare along with this program. If not,
* see <http://www.gnu.org/licenses/> for the GNU Affero General Public License
* version 3 and <http://www.linagora.com/licenses/> for the Additional Terms
* applicable to LinShare software.
*/
package org.linagora.linshare.core.rac.impl;
import org.apache.commons.lang.Validate;
import org.linagora.linshare.core.domain.constants.PermissionType;
import org.linagora.linshare.core.domain.constants.TechnicalAccountPermissionType;
import org.linagora.linshare.core.domain.entities.Account;
import org.linagora.linshare.core.domain.entities.AccountPermission;
import org.linagora.linshare.core.domain.entities.TechnicalAccountPermission;
import org.linagora.linshare.core.exception.BusinessErrorCode;
import org.linagora.linshare.core.exception.BusinessException;
import org.linagora.linshare.core.rac.AbstractResourceAccessControl;
import org.linagora.linshare.core.service.FunctionalityReadOnlyService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class AbstractResourceAccessControlImpl<A, R, E> implements
AbstractResourceAccessControl<A, R, E> {
protected final FunctionalityReadOnlyService functionalityService;
public AbstractResourceAccessControlImpl(
FunctionalityReadOnlyService functionalityService) {
super();
this.functionalityService = functionalityService;
}
protected static Logger logger = LoggerFactory
.getLogger(AbstractResourceAccessControlImpl.class);
protected abstract boolean hasReadPermission(Account actor, A account,
E entry, Object... opt);
protected abstract boolean hasListPermission(Account actor, A account,
E entry, Object... opt);
protected abstract boolean hasDeletePermission(Account actor, A account,
E entry, Object... opt);
protected abstract boolean hasCreatePermission(Account actor, A account,
E entry, Object... opt);
protected abstract boolean hasUpdatePermission(Account actor, A account,
E entry, Object... opt);
protected abstract String getTargetedAccountRepresentation(A targetedAccount);
protected A getOwner(E entry, Object... opt) {
return null;
}
protected R getRecipient(E entry) {
return null;
}
protected String getRecipientRepresentation(E entry) {
return null;
}
protected abstract String getEntryRepresentation(E entry);
protected void appendOwner(StringBuilder sb, E entry, Object... opt) {
A owner = getOwner(entry, opt);
if (owner != null) {
String or = getOwnerRepresentation(owner);
if (or != null) {
sb.append(" owned by : ");
sb.append(or);
}
}
}
protected String getOwnerRepresentation(A owner) {
return null;
}
protected StringBuilder getActorStringBuilder(Account actor) {
StringBuilder sb = new StringBuilder("Actor ");
sb.append(actor.getAccountRepresentation());
return sb;
}
protected boolean isAuthorized(Account actor, A targetedAccount,
PermissionType permission, E entry, Class<?> clazz, Object... opt) {
Validate.notNull(actor);
Validate.notNull(targetedAccount);
Validate.notNull(permission);
if (actor.hasAllRights())
return true;
if (permission.equals(PermissionType.GET)) {
if (hasReadPermission(actor, targetedAccount, entry, opt))
return true;
} else if (permission.equals(PermissionType.LIST)) {
if (hasListPermission(actor, targetedAccount, entry, opt))
return true;
} else if (permission.equals(PermissionType.CREATE)) {
if (hasCreatePermission(actor, targetedAccount, entry, opt))
return true;
} else if (permission.equals(PermissionType.UPDATE)) {
if (hasUpdatePermission(actor, targetedAccount, entry, opt))
return true;
} else if (permission.equals(PermissionType.DELETE)) {
if (hasDeletePermission(actor, targetedAccount, entry, opt))
return true;
}
if (clazz != null) {
StringBuilder sb = getActorStringBuilder(actor);
sb.append(" is trying to access to unauthorized resource named ");
sb.append(clazz.toString());
appendOwner(sb, entry, opt);
logger.error(sb.toString());
}
return false;
}
protected boolean hasPermission(Account actor,
final TechnicalAccountPermissionType permissionType) {
TechnicalAccountPermission p = actor.getPermission();
boolean contains = false;
for (AccountPermission permission : p.getAccountPermissions()) {
if (permission.getPermission().equals(permissionType)) {
contains = true;
break;
}
}
logger.debug(permissionType.toString() + " : " + contains);
return contains;
}
/**
* Only the entry owner has all rights (create, read, list, update, delete,
* download and thumb nail download.
*
* @param actor
* @param owner
* @param entry
* @param permission
* @return
*/
protected boolean defaultPermissionCheck(Account actor, Account owner,
E entry, TechnicalAccountPermissionType permission) {
if (actor.hasDelegationRole())
return hasPermission(actor, permission);
if (actor.isInternal() || actor.isGuest())
return (owner != null && actor.equals(owner));
return false;
}
protected void checkPermission(Account actor, A targetedAccount,
Class<?> clazz, BusinessErrorCode errCode, E entry,
PermissionType permissionType, String logMessage,
String exceptionMessage, Object... opt) throws BusinessException {
if (!isAuthorized(actor, targetedAccount, permissionType, entry, clazz,
opt)) {
StringBuilder sb = getActorStringBuilder(actor);
sb.append(logMessage);
if (entry != null) {
String entryRepresentation = getEntryRepresentation(entry);
sb.append(entryRepresentation);
}
if (targetedAccount != null) {
sb.append(" for targeted account : ");
sb.append(getTargetedAccountRepresentation(targetedAccount));
}
logger.error(sb.toString());
throw new BusinessException(errCode, exceptionMessage);
}
}
@Override
public void checkReadPermission(Account actor, A targetedAccount,
Class<?> clazz, BusinessErrorCode errCode, E entry, Object... opt)
throws BusinessException {
String logMessage = " is not authorized to get the entry ";
String exceptionMessage = "You are not authorized to get this entry.";
checkPermission(actor, targetedAccount, clazz, errCode, entry,
PermissionType.GET, logMessage, exceptionMessage, opt);
}
@Override
public void checkListPermission(Account actor, A targetedAccount,
Class<?> clazz, BusinessErrorCode errCode, E entry, Object... opt)
throws BusinessException {
String logMessage = " is not authorized to list all entries ";
String exceptionMessage = "You are not authorized to list all entries.";
checkPermission(actor, targetedAccount, clazz, errCode, entry,
PermissionType.LIST, logMessage, exceptionMessage, opt);
}
@Override
public void checkCreatePermission(Account actor, A targetedAccount,
Class<?> clazz, BusinessErrorCode errCode, E entry, Object... opt)
throws BusinessException {
String logMessage = " is not authorized to create an entry ";
String exceptionMessage = "You are not authorized to create an entry.";
checkPermission(actor, targetedAccount, clazz, errCode, entry,
PermissionType.CREATE, logMessage, exceptionMessage, opt);
}
@Override
public void checkUpdatePermission(Account actor, A targetedAccount,
Class<?> clazz, BusinessErrorCode errCode, E entry, Object... opt)
throws BusinessException {
String logMessage = " is not authorized to update the entry ";
String exceptionMessage = "You are not authorized to update this entry.";
checkPermission(actor, targetedAccount, clazz, errCode, entry,
PermissionType.UPDATE, logMessage, exceptionMessage, opt);
}
@Override
public void checkDeletePermission(Account actor, A targetedAccount,
Class<?> clazz, BusinessErrorCode errCode, E entry, Object... opt)
throws BusinessException {
String logMessage = " is not authorized to delete the entry ";
String exceptionMessage = "You are not authorized to delete this entry.";
checkPermission(actor, targetedAccount, clazz, errCode, entry,
PermissionType.DELETE, logMessage, exceptionMessage, opt);
}
}