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			149 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			149 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/******************************************************************************
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 * Icinga 2                                                                   *
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 * Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org)    *
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 *                                                                            *
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 * This program is free software; you can redistribute it and/or              *
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 * modify it under the terms of the GNU General Public License                *
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 * as published by the Free Software Foundation; either version 2             *
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 * of the License, or (at your option) any later version.                     *
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 *                                                                            *
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 * This program is distributed in the hope that it will be useful,            *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
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 * GNU General Public License for more details.                               *
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 *                                                                            *
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 * You should have received a copy of the GNU General Public License          *
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 * along with this program; if not, write to the Free Software Foundation     *
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
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 ******************************************************************************/
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#include "remote/filterutility.hpp"
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#include "remote/httputility.hpp"
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#include "config/configcompiler.hpp"
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#include "config/expression.hpp"
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#include "base/json.hpp"
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#include "base/configtype.hpp"
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#include "base/logger.hpp"
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#include <boost/foreach.hpp>
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#include <boost/algorithm/string.hpp>
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using namespace icinga;
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Type::Ptr FilterUtility::TypeFromPluralName(const String& pluralName)
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{
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	String uname = pluralName;
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	boost::algorithm::to_lower(uname);
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	BOOST_FOREACH(const ConfigType::Ptr& dtype, ConfigType::GetTypes()) {
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		Type::Ptr type = Type::GetByName(dtype->GetName());
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		ASSERT(type);
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		String pname = type->GetPluralName();
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		boost::algorithm::to_lower(pname);
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		if (uname == pname)
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			return type;
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	}
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	return Type::Ptr();
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}
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ConfigObject::Ptr FilterUtility::GetObjectByTypeAndName(const String& type, const String& name)
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{
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	ConfigType::Ptr dtype = ConfigType::GetByName(type);
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	ASSERT(dtype);
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	return dtype->GetObject(name);
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}
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std::vector<ConfigObject::Ptr> FilterUtility::GetFilterTargets(const QueryDescription& qd, const Dictionary::Ptr& query)
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{
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	std::vector<ConfigObject::Ptr> result;
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	BOOST_FOREACH(const Type::Ptr& type, qd.Types) {
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		String attr = type->GetName();
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		boost::algorithm::to_lower(attr);
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		if (query->Contains(attr)) {
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			String name = HttpUtility::GetLastParameter(query, attr);
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			ConfigObject::Ptr obj = GetObjectByTypeAndName(type->GetName(), name);
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			if (!obj)
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				BOOST_THROW_EXCEPTION(std::invalid_argument("Object does not exist."));
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			result.push_back(obj);
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		}
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		attr = type->GetPluralName();
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		boost::algorithm::to_lower(attr);
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		if (query->Contains(attr)) {
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			Array::Ptr names = query->Get(attr);
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			if (names) {
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				ObjectLock olock(names);
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				BOOST_FOREACH(const String& name, names) {
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					ConfigObject::Ptr obj = GetObjectByTypeAndName(type->GetName(), name);
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					if (!obj)
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						BOOST_THROW_EXCEPTION(std::invalid_argument("Object does not exist."));
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					result.push_back(obj);
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				}
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			}
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		}
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	}
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	if (query->Contains("filter") || result.empty()) {
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		if (!query->Contains("type"))
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			BOOST_THROW_EXCEPTION(std::invalid_argument("Type must be specified when using a filter."));
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		String filter;
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		if (!query->Contains("filter"))
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			filter = "true";
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		else
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			filter = HttpUtility::GetLastParameter(query, "filter");
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		String type = HttpUtility::GetLastParameter(query, "type");
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		Log(LogInformation, "FilterUtility", filter);
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		Type::Ptr utype = Type::GetByName(type);
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		if (!utype)
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			BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid type specified."));
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		if (qd.Types.find(utype) == qd.Types.end())
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			BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid type specified for this query."));
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		ConfigType::Ptr dtype = ConfigType::GetByName(type);
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		ASSERT(dtype);
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		Expression *ufilter = ConfigCompiler::CompileText("<API query>", filter, false);
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		ScriptFrame frame;
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		frame.Sandboxed = true;
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		Dictionary::Ptr filter_vars = query->Get("filter_vars");
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		if (filter_vars) {
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			ObjectLock olock(filter_vars);
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			BOOST_FOREACH(const Dictionary::Pair& kv, filter_vars) {
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				frame.Locals->Set(kv.first, kv.second);
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			}
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		}
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		String varName = utype->GetName();
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		boost::algorithm::to_lower(varName);
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		try {
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			BOOST_FOREACH(const ConfigObject::Ptr& object, dtype->GetObjects()) {
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				frame.Locals->Set(varName, object);
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				if (Convert::ToBool(ufilter->Evaluate(frame)))
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					result.push_back(object);
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			}
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		} catch (const std::exception& ex) {
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			delete ufilter;
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			throw;
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		}
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		delete ufilter;
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	}
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	return result;
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}
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