org.graylog.plugins.views.search.SearchDomain Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog.plugins.views.search;
import org.graylog.plugins.views.search.db.SearchDbService;
import org.graylog.plugins.views.search.errors.PermissionException;
import org.graylog.plugins.views.search.views.ViewDTO;
import org.graylog.plugins.views.search.views.ViewService;
import org.graylog2.plugin.database.users.User;
import javax.inject.Inject;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
import java.util.function.Predicate;
import java.util.stream.Collectors;
public class SearchDomain {
private final SearchDbService dbService;
private final ViewService viewService;
@Inject
public SearchDomain(SearchDbService dbService, ViewService viewService) {
this.dbService = dbService;
this.viewService = viewService;
}
public Optional getForUser(String id, User user, Predicate viewReadPermission) {
final Optional search = dbService.get(id);
search.ifPresent(s -> checkPermission(user, viewReadPermission, s));
return search;
}
private void checkPermission(User user, Predicate viewReadPermission, Search s) {
if (!hasReadPermissionFor(user, viewReadPermission, s))
throw new PermissionException("User " + user.getName() + " does not have permission to load search " + s.id());
}
public List getAllForUser(User user, Predicate viewReadPermission) {
return dbService.streamAll()
.filter(s -> hasReadPermissionFor(user, viewReadPermission, s))
.collect(Collectors.toList());
}
private boolean hasReadPermissionFor(User user, Predicate viewReadPermission, Search search) {
if (isOwned(search, user)) {
return true;
}
// Allowed if permissions exist for a referencing view
final Collection views = viewService.forSearch(search.id());
if (views.isEmpty())
return false;
return views.stream().anyMatch(viewReadPermission);
}
private boolean isOwned(Search search, User user) {
return search.owner().map(o -> o.equals(user.getName())).orElse(false);
}
}