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/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program 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 3 of the License, or (at your option) any later version.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.server.permission;
import java.util.List;
import java.util.Optional;
import org.sonar.core.permission.ProjectPermissions;
import org.sonar.db.DbClient;
import org.sonar.db.DbSession;
import org.sonar.db.permission.GroupPermissionDto;
import static org.sonar.core.permission.GlobalPermissions.SYSTEM_ADMIN;
import static org.sonar.server.permission.PermissionChange.Operation.ADD;
import static org.sonar.server.permission.PermissionChange.Operation.REMOVE;
import static org.sonar.server.permission.ws.PermissionRequestValidator.validateNotAnyoneAndAdminPermission;
import static org.sonar.server.ws.WsUtils.checkRequest;
public class GroupPermissionChanger {
private final DbClient dbClient;
public GroupPermissionChanger(DbClient dbClient) {
this.dbClient = dbClient;
}
public boolean apply(DbSession dbSession, GroupPermissionChange change) {
ensureConsistencyWithVisibility(change);
if (isImplicitlyAlreadyDone(change)) {
return false;
}
switch (change.getOperation()) {
case ADD:
return addPermission(dbSession, change);
case REMOVE:
return removePermission(dbSession, change);
default:
throw new UnsupportedOperationException("Unsupported permission change: " + change.getOperation());
}
}
private static boolean isImplicitlyAlreadyDone(GroupPermissionChange change) {
return change.getProjectId()
.map(projectId -> isImplicitlyAlreadyDone(projectId, change))
.orElse(false);
}
private static boolean isImplicitlyAlreadyDone(ProjectId projectId, GroupPermissionChange change) {
return isAttemptToAddPublicPermissionToPublicComponent(change, projectId)
|| isAttemptToRemovePermissionFromAnyoneOnPrivateComponent(change, projectId);
}
private static boolean isAttemptToAddPublicPermissionToPublicComponent(GroupPermissionChange change, ProjectId projectId) {
return !projectId.isPrivate()
&& change.getOperation() == ADD
&& ProjectPermissions.PUBLIC_PERMISSIONS.contains(change.getPermission());
}
private static boolean isAttemptToRemovePermissionFromAnyoneOnPrivateComponent(GroupPermissionChange change, ProjectId projectId) {
return projectId.isPrivate()
&& change.getOperation() == REMOVE
&& change.getGroupIdOrAnyone().isAnyone();
}
private static void ensureConsistencyWithVisibility(GroupPermissionChange change) {
change.getProjectId()
.ifPresent(projectId -> {
checkRequest(
!isAttemptToAddPermissionToAnyoneOnPrivateComponent(change, projectId),
"No permission can be granted to Anyone on a private component");
checkRequest(
!isAttemptToRemovePublicPermissionFromPublicComponent(change, projectId),
"Permission %s can't be removed from a public component", change.getPermission());
});
}
private static boolean isAttemptToAddPermissionToAnyoneOnPrivateComponent(GroupPermissionChange change, ProjectId projectId) {
return projectId.isPrivate()
&& change.getOperation() == ADD
&& change.getGroupIdOrAnyone().isAnyone();
}
private static boolean isAttemptToRemovePublicPermissionFromPublicComponent(GroupPermissionChange change, ProjectId projectId) {
return !projectId.isPrivate()
&& change.getOperation() == REMOVE
&& ProjectPermissions.PUBLIC_PERMISSIONS.contains(change.getPermission());
}
private boolean addPermission(DbSession dbSession, GroupPermissionChange change) {
if (loadExistingPermissions(dbSession, change).contains(change.getPermission())) {
return false;
}
validateNotAnyoneAndAdminPermission(change.getPermission(), change.getGroupIdOrAnyone());
GroupPermissionDto addedDto = new GroupPermissionDto()
.setRole(change.getPermission())
.setOrganizationUuid(change.getOrganizationUuid())
.setGroupId(change.getGroupIdOrAnyone().getId())
.setResourceId(change.getNullableProjectId());
dbClient.groupPermissionDao().insert(dbSession, addedDto);
return true;
}
private boolean removePermission(DbSession dbSession, GroupPermissionChange change) {
if (!loadExistingPermissions(dbSession, change).contains(change.getPermission())) {
return false;
}
checkIfRemainingGlobalAdministrators(dbSession, change);
dbClient.groupPermissionDao().delete(dbSession,
change.getPermission(),
change.getOrganizationUuid(),
change.getGroupIdOrAnyone().getId(),
change.getNullableProjectId());
return true;
}
private List loadExistingPermissions(DbSession dbSession, GroupPermissionChange change) {
Optional projectId = change.getProjectId();
if (projectId.isPresent()) {
return dbClient.groupPermissionDao().selectProjectPermissionsOfGroup(dbSession,
change.getOrganizationUuid(),
change.getGroupIdOrAnyone().getId(),
projectId.get().getId());
}
return dbClient.groupPermissionDao().selectGlobalPermissionsOfGroup(dbSession,
change.getOrganizationUuid(),
change.getGroupIdOrAnyone().getId());
}
private void checkIfRemainingGlobalAdministrators(DbSession dbSession, GroupPermissionChange change) {
if (SYSTEM_ADMIN.equals(change.getPermission()) &&
!change.getGroupIdOrAnyone().isAnyone() &&
!change.getProjectId().isPresent()) {
// removing global admin permission from group
int remaining = dbClient.authorizationDao().countUsersWithGlobalPermissionExcludingGroup(dbSession,
change.getOrganizationUuid(), SYSTEM_ADMIN, change.getGroupIdOrAnyone().getId());
checkRequest(remaining > 0, "Last group with permission '%s'. Permission cannot be removed.", SYSTEM_ADMIN);
}
}
}
