granicus.if.org Git - icinga2/blob - lib/icinga/usergroup.cpp

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/)  *
   4  *                                                                            *
   5  * This program is free software; you can redistribute it and/or              *
   6  * modify it under the terms of the GNU General Public License                *
   7  * as published by the Free Software Foundation; either version 2             *
   8  * of the License, or (at your option) any later version.                     *
   9  *                                                                            *
  10  * This program is distributed in the hope that it will be useful,            *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
  14  *                                                                            *
  15  * You should have received a copy of the GNU General Public License          *
  16  * along with this program; if not, write to the Free Software Foundation     *
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
  18  ******************************************************************************/
  19
  20 #include "icinga/usergroup.hpp"
  21 #include "icinga/usergroup-ti.cpp"
  22 #include "config/objectrule.hpp"
  23 #include "config/configitem.hpp"
  24 #include "base/configtype.hpp"
  25 #include "base/objectlock.hpp"
  26 #include "base/logger.hpp"
  27 #include "base/context.hpp"
  28 #include "base/workqueue.hpp"
  29
  30 using namespace icinga;
  31
  32 REGISTER_TYPE(UserGroup);
  33
  34 INITIALIZE_ONCE([]() {
  35         ObjectRule::RegisterType("UserGroup");
  36 });
  37
  38 bool UserGroup::EvaluateObjectRule(const User::Ptr& user, const ConfigItem::Ptr& group)
  39 {
  40         String groupName = group->GetName();
  41
  42         CONTEXT("Evaluating rule for group '" + groupName + "'");
  43
  44         ScriptFrame frame(true);
  45         if (group->GetScope())
  46                 group->GetScope()->CopyTo(frame.Locals);
  47         frame.Locals->Set("user", user);
  48
  49         if (!group->GetFilter()->Evaluate(frame).GetValue().ToBool())
  50                 return false;
  51
  52         Log(LogDebug, "UserGroup")
  53                 << "Assigning membership for group '" << groupName << "' to user '" << user->GetName() << "'";
  54
  55         Array::Ptr groups = user->GetGroups();
  56
  57         if (groups && !groups->Contains(groupName))
  58                 groups->Add(groupName);
  59
  60         return true;
  61 }
  62
  63 void UserGroup::EvaluateObjectRules(const User::Ptr& user)
  64 {
  65         CONTEXT("Evaluating group membership for user '" + user->GetName() + "'");
  66
  67         for (const ConfigItem::Ptr& group : ConfigItem::GetItems(UserGroup::TypeInstance))
  68         {
  69                 if (!group->GetFilter())
  70                         continue;
  71
  72                 EvaluateObjectRule(user, group);
  73         }
  74 }
  75
  76 std::set<User::Ptr> UserGroup::GetMembers() const
  77 {
  78         boost::mutex::scoped_lock lock(m_UserGroupMutex);
  79         return m_Members;
  80 }
  81
  82 void UserGroup::AddMember(const User::Ptr& user)
  83 {
  84         user->AddGroup(GetName());
  85
  86         boost::mutex::scoped_lock lock(m_UserGroupMutex);
  87         m_Members.insert(user);
  88 }
  89
  90 void UserGroup::RemoveMember(const User::Ptr& user)
  91 {
  92         boost::mutex::scoped_lock lock(m_UserGroupMutex);
  93         m_Members.erase(user);
  94 }
  95
  96 bool UserGroup::ResolveGroupMembership(const User::Ptr& user, bool add, int rstack) {
  97
  98         if (add && rstack > 20) {
  99                 Log(LogWarning, "UserGroup")
 100                         << "Too many nested groups for group '" << GetName() << "': User '"
 101                         << user->GetName() << "' membership assignment failed.";
 102
 103                 return false;
 104         }
 105
 106         Array::Ptr groups = GetGroups();
 107
 108         if (groups && groups->GetLength() > 0) {
 109                 ObjectLock olock(groups);
 110
 111                 for (const String& name : groups) {
 112                         UserGroup::Ptr group = UserGroup::GetByName(name);
 113
 114                         if (group && !group->ResolveGroupMembership(user, add, rstack + 1))
 115                                 return false;
 116                 }
 117         }
 118
 119         if (add)
 120                 AddMember(user);
 121         else
 122                 RemoveMember(user);
 123
 124         return true;
 125 }
 126