icinga2/lib/config/configtype.cpp

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/******************************************************************************
* Icinga 2 *
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* Copyright (C) 2012-2013 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. *
******************************************************************************/
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#include "config/configtype.h"
#include "config/configcompilercontext.h"
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#include "base/objectlock.h"
#include "base/convert.h"
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#include "base/scriptfunction.h"
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#include <boost/foreach.hpp>
using namespace icinga;
ConfigType::ConfigType(const String& name, const DebugInfo& debuginfo)
: m_Name(name), m_RuleList(make_shared<TypeRuleList>()), m_DebugInfo(debuginfo)
{ }
String ConfigType::GetName(void) const
{
return m_Name;
}
String ConfigType::GetParent(void) const
{
return m_Parent;
}
void ConfigType::SetParent(const String& parent)
{
m_Parent = parent;
}
TypeRuleList::Ptr ConfigType::GetRuleList(void) const
{
return m_RuleList;
}
DebugInfo ConfigType::GetDebugInfo(void) const
{
return m_DebugInfo;
}
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void ConfigType::AddParentRules(std::vector<TypeRuleList::Ptr>& ruleLists, const ConfigType::Ptr& item)
{
ConfigType::Ptr parent;
if (item->m_Parent.IsEmpty()) {
if (item->GetName() != "DynamicObject")
parent = ConfigType::GetByName("DynamicObject");
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} else {
parent = ConfigType::GetByName(item->m_Parent);
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}
if (parent) {
AddParentRules(ruleLists, parent);
ObjectLock plock(parent);
ruleLists.push_back(parent->m_RuleList);
}
}
void ConfigType::ValidateItem(const ConfigItem::Ptr& item)
{
/* Don't validate abstract items. */
if (item->IsAbstract())
return;
Dictionary::Ptr attrs;
DebugInfo debugInfo;
String type, name;
{
ObjectLock olock(item);
attrs = item->GetProperties();
debugInfo = item->GetDebugInfo();
type = item->GetType();
name = item->GetName();
}
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std::vector<String> locations;
locations.push_back("Object '" + name + "' (Type: '" + type + "') at " + debugInfo.Path + ":" + Convert::ToString(debugInfo.FirstLine));
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std::vector<TypeRuleList::Ptr> ruleLists;
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AddParentRules(ruleLists, GetSelf());
ruleLists.push_back(m_RuleList);
ValidateDictionary(attrs, ruleLists, locations);
}
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String ConfigType::LocationToString(const std::vector<String>& locations)
{
bool first = true;
String stack;
BOOST_FOREACH(const String& location, locations) {
if (!first)
stack += " -> ";
else
first = false;
stack += location;
}
return stack;
}
void ConfigType::ValidateDictionary(const Dictionary::Ptr& dictionary,
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const std::vector<TypeRuleList::Ptr>& ruleLists, std::vector<String>& locations)
{
BOOST_FOREACH(const TypeRuleList::Ptr& ruleList, ruleLists) {
BOOST_FOREACH(const String& require, ruleList->GetRequires()) {
locations.push_back("Attribute '" + require + "'");
Value value = dictionary->Get(require);
if (value.IsEmpty()) {
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ConfigCompilerContext::GetInstance()->AddMessage(true,
"Required attribute is missing: " + LocationToString(locations));
}
locations.pop_back();
}
String validator = ruleList->GetValidator();
if (!validator.IsEmpty()) {
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ScriptFunction::Ptr func = ScriptFunctionRegistry::GetInstance()->GetItem(validator);
if (!func)
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BOOST_THROW_EXCEPTION(std::invalid_argument("Validator function '" + validator + "' does not exist."));
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std::vector<Value> arguments;
arguments.push_back(LocationToString(locations));
arguments.push_back(dictionary);
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func->Invoke(arguments);
}
}
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ObjectLock olock(dictionary);
BOOST_FOREACH(const Dictionary::Pair& kv, dictionary) {
TypeValidationResult overallResult = ValidationUnknownField;
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std::vector<TypeRuleList::Ptr> subRuleLists;
String hint;
locations.push_back("Attribute '" + kv.first + "'");
BOOST_FOREACH(const TypeRuleList::Ptr& ruleList, ruleLists) {
TypeRuleList::Ptr subRuleList;
TypeValidationResult result = ruleList->ValidateAttribute(kv.first, kv.second, &subRuleList, &hint);
if (subRuleList)
subRuleLists.push_back(subRuleList);
if (overallResult == ValidationOK)
continue;
if (result == ValidationOK) {
overallResult = result;
continue;
}
if (result == ValidationInvalidType)
overallResult = result;
}
if (overallResult == ValidationUnknownField)
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ConfigCompilerContext::GetInstance()->AddMessage(false, "Unknown attribute: " + LocationToString(locations));
else if (overallResult == ValidationInvalidType) {
String message = "Invalid value for attribute: " + LocationToString(locations);
if (!hint.IsEmpty())
message += ": " + hint;
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ConfigCompilerContext::GetInstance()->AddMessage(true, message);
}
if (!subRuleLists.empty() && kv.second.IsObjectType<Dictionary>())
ValidateDictionary(kv.second, subRuleLists, locations);
else if (!subRuleLists.empty() && kv.second.IsObjectType<Array>())
ValidateArray(kv.second, subRuleLists, locations);
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locations.pop_back();
}
}
void ConfigType::ValidateArray(const Array::Ptr& array,
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const std::vector<TypeRuleList::Ptr>& ruleLists, std::vector<String>& locations)
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{
BOOST_FOREACH(const TypeRuleList::Ptr& ruleList, ruleLists) {
BOOST_FOREACH(const String& require, ruleList->GetRequires()) {
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size_t index = Convert::ToLong(require);
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locations.push_back("Attribute '" + require + "'");
if (array->GetLength() < index) {
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ConfigCompilerContext::GetInstance()->AddMessage(true,
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"Required array index is missing: " + LocationToString(locations));
}
locations.pop_back();
}
String validator = ruleList->GetValidator();
if (!validator.IsEmpty()) {
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ScriptFunction::Ptr func = ScriptFunctionRegistry::GetInstance()->GetItem(validator);
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if (!func)
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BOOST_THROW_EXCEPTION(std::invalid_argument("Validator function '" + validator + "' does not exist."));
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std::vector<Value> arguments;
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arguments.push_back(LocationToString(locations));
arguments.push_back(array);
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func->Invoke(arguments);
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}
}
ObjectLock olock(array);
int index = 0;
String key;
BOOST_FOREACH(const Value& value, array) {
key = Convert::ToString(index);
index++;
TypeValidationResult overallResult = ValidationUnknownField;
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std::vector<TypeRuleList::Ptr> subRuleLists;
String hint;
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locations.push_back("Index " + key);
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BOOST_FOREACH(const TypeRuleList::Ptr& ruleList, ruleLists) {
TypeRuleList::Ptr subRuleList;
TypeValidationResult result = ruleList->ValidateAttribute(key, value, &subRuleList, &hint);
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if (subRuleList)
subRuleLists.push_back(subRuleList);
if (overallResult == ValidationOK)
continue;
if (result == ValidationOK) {
overallResult = result;
continue;
}
if (result == ValidationInvalidType)
overallResult = result;
}
if (overallResult == ValidationUnknownField)
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ConfigCompilerContext::GetInstance()->AddMessage(false, "Unknown attribute: " + LocationToString(locations));
else if (overallResult == ValidationInvalidType) {
String message = "Invalid value for array index: " + LocationToString(locations);
if (!hint.IsEmpty())
message += ": " + hint;
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ConfigCompilerContext::GetInstance()->AddMessage(true, message);
}
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if (!subRuleLists.empty() && value.IsObjectType<Dictionary>())
ValidateDictionary(value, subRuleLists, locations);
else if (!subRuleLists.empty() && value.IsObjectType<Array>())
ValidateArray(value, subRuleLists, locations);
locations.pop_back();
}
}
void ConfigType::Register(void)
{
ConfigTypeRegistry::GetInstance()->Register(GetName(), GetSelf());
}
ConfigType::Ptr ConfigType::GetByName(const String& name)
{
return ConfigTypeRegistry::GetInstance()->GetItem(name);
}
ConfigTypeRegistry::ItemMap ConfigType::GetTypes(void)
{
return ConfigTypeRegistry::GetInstance()->GetItems();
}
void ConfigType::DiscardTypes(void)
{
ConfigTypeRegistry::GetInstance()->Clear();
}
ConfigTypeRegistry *ConfigTypeRegistry::GetInstance(void)
{
return Singleton<ConfigTypeRegistry>::GetInstance();
}