icinga2/lib/icinga/usergroup.cpp

143 lines
4.3 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "icinga/usergroup.hpp"
#include "config/objectrule.hpp"
#include "base/dynamictype.hpp"
#include "base/objectlock.hpp"
#include "base/logger.hpp"
#include "base/context.hpp"
#include "base/workqueue.hpp"
#include <boost/foreach.hpp>
using namespace icinga;
REGISTER_TYPE(UserGroup);
INITIALIZE_ONCE(&UserGroup::RegisterObjectRuleHandler);
void UserGroup::RegisterObjectRuleHandler(void)
{
ObjectRule::RegisterType("UserGroup", &UserGroup::EvaluateObjectRules);
}
bool UserGroup::EvaluateObjectRuleOne(const User::Ptr& user, const ObjectRule& rule)
{
DebugInfo di = rule.GetDebugInfo();
std::ostringstream msgbuf;
msgbuf << "Evaluating 'object' rule (" << di << ")";
CONTEXT(msgbuf.str());
Dictionary::Ptr locals = make_shared<Dictionary>();
locals->Set("user", user);
if (!rule.EvaluateFilter(locals))
return false;
Log(LogDebug, "UserGroup")
<< "Assigning membership for group '" << rule.GetName() << "' to user '" << user->GetName() << "' for rule " << di;
String group_name = rule.GetName();
UserGroup::Ptr group = UserGroup::GetByName(group_name);
if (!group) {
Log(LogCritical, "UserGroup")
<< "Invalid membership assignment. Group '" << group_name << "' does not exist.";
return false;
}
/* assign user group membership */
group->ResolveGroupMembership(user, true);
return true;
}
void UserGroup::EvaluateObjectRule(const ObjectRule& rule)
{
BOOST_FOREACH(const User::Ptr& user, DynamicType::GetObjectsByType<User>()) {
CONTEXT("Evaluating group membership in '" + rule.GetName() + "' for user '" + user->GetName() + "'");
EvaluateObjectRuleOne(user, rule);
}
}
void UserGroup::EvaluateObjectRules(const std::vector<ObjectRule>& rules)
{
ParallelWorkQueue upq;
BOOST_FOREACH(const ObjectRule& rule, rules) {
upq.Enqueue(boost::bind(UserGroup::EvaluateObjectRule, boost::cref(rule)));
}
upq.Join();
}
std::set<User::Ptr> UserGroup::GetMembers(void) const
{
boost::mutex::scoped_lock lock(m_UserGroupMutex);
return m_Members;
}
void UserGroup::AddMember(const User::Ptr& user)
{
user->AddGroup(GetName());
boost::mutex::scoped_lock lock(m_UserGroupMutex);
m_Members.insert(user);
}
void UserGroup::RemoveMember(const User::Ptr& user)
{
boost::mutex::scoped_lock lock(m_UserGroupMutex);
m_Members.erase(user);
}
bool UserGroup::ResolveGroupMembership(const User::Ptr& user, bool add, int rstack) {
if (add && rstack > 20) {
Log(LogWarning, "UserGroup")
<< "Too many nested groups for group '" << GetName() << "': User '"
<< user->GetName() << "' membership assignment failed.";
return false;
}
Array::Ptr groups = GetGroups();
if (groups && groups->GetLength() > 0) {
ObjectLock olock(groups);
BOOST_FOREACH(const String& name, groups) {
UserGroup::Ptr group = UserGroup::GetByName(name);
if (group && !group->ResolveGroupMembership(user, add, rstack + 1))
return false;
}
}
if (add)
AddMember(user);
else
RemoveMember(user);
return true;
}