mirror of
https://github.com/Icinga/icinga2.git
synced 2026-03-30 06:14:55 -04:00
a25e2b1038
This stops the checker component first, then notifications, then features, then config objects, then the API feature and logger(s). Patch taken from @al2klimov
735 lines
18 KiB
C++
735 lines
18 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2018 Icinga Development Team (https://icinga.com/) *
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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 "base/configobject.hpp"
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#include "base/configobject-ti.cpp"
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#include "base/configtype.hpp"
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#include "base/serializer.hpp"
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#include "base/netstring.hpp"
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#include "base/json.hpp"
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#include "base/stdiostream.hpp"
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#include "base/debug.hpp"
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#include "base/objectlock.hpp"
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#include "base/logger.hpp"
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#include "base/exception.hpp"
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#include "base/function.hpp"
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#include "base/initialize.hpp"
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#include "base/workqueue.hpp"
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#include "base/context.hpp"
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#include "base/application.hpp"
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#include <fstream>
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#include <boost/exception/errinfo_api_function.hpp>
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#include <boost/exception/errinfo_errno.hpp>
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#include <boost/exception/errinfo_file_name.hpp>
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using namespace icinga;
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REGISTER_TYPE_WITH_PROTOTYPE(ConfigObject, ConfigObject::GetPrototype());
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boost::signals2::signal<void (const ConfigObject::Ptr&)> ConfigObject::OnStateChanged;
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bool ConfigObject::IsActive() const
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{
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return GetActive();
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}
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bool ConfigObject::IsPaused() const
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{
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return GetPaused();
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}
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void ConfigObject::SetExtension(const String& key, const Value& value)
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{
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Dictionary::Ptr extensions = GetExtensions();
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if (!extensions) {
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extensions = new Dictionary();
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SetExtensions(extensions);
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}
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extensions->Set(key, value);
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}
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Value ConfigObject::GetExtension(const String& key)
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{
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Dictionary::Ptr extensions = GetExtensions();
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if (!extensions)
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return Empty;
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return extensions->Get(key);
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}
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void ConfigObject::ClearExtension(const String& key)
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{
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Dictionary::Ptr extensions = GetExtensions();
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if (!extensions)
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return;
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extensions->Remove(key);
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}
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class ModAttrValidationUtils final : public ValidationUtils
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{
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public:
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bool ValidateName(const String& type, const String& name) const override
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{
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Type::Ptr ptype = Type::GetByName(type);
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auto *dtype = dynamic_cast<ConfigType *>(ptype.get());
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if (!dtype)
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return false;
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if (!dtype->GetObject(name))
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return false;
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return true;
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}
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};
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void ConfigObject::ModifyAttribute(const String& attr, const Value& value, bool updateVersion)
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{
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Dictionary::Ptr original_attributes = GetOriginalAttributes();
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bool updated_original_attributes = false;
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Type::Ptr type = GetReflectionType();
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std::vector<String> tokens = attr.Split(".");
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String fieldName = tokens[0];
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int fid = type->GetFieldId(fieldName);
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Field field = type->GetFieldInfo(fid);
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if (field.Attributes & FANoUserModify)
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BOOST_THROW_EXCEPTION(std::invalid_argument("Attribute cannot be modified."));
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if (field.Attributes & FAConfig) {
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if (!original_attributes) {
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original_attributes = new Dictionary();
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SetOriginalAttributes(original_attributes, true);
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}
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}
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Value oldValue = GetField(fid);
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Value newValue;
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if (tokens.size() > 1) {
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newValue = oldValue.Clone();
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Value current = newValue;
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if (current.IsEmpty()) {
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current = new Dictionary();
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newValue = current;
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}
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String prefix = tokens[0];
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for (std::vector<String>::size_type i = 1; i < tokens.size() - 1; i++) {
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if (!current.IsObjectType<Dictionary>())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));
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Dictionary::Ptr dict = current;
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const String& key = tokens[i];
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prefix += "." + key;
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if (!dict->Get(key, ¤t)) {
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current = new Dictionary();
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dict->Set(key, current);
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}
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}
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if (!current.IsObjectType<Dictionary>())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));
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Dictionary::Ptr dict = current;
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const String& key = tokens[tokens.size() - 1];
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prefix += "." + key;
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/* clone it for original attributes */
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oldValue = dict->Get(key).Clone();
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if (field.Attributes & FAConfig) {
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updated_original_attributes = true;
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if (oldValue.IsObjectType<Dictionary>()) {
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Dictionary::Ptr oldDict = oldValue;
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ObjectLock olock(oldDict);
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for (const auto& kv : oldDict) {
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String key = prefix + "." + kv.first;
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if (!original_attributes->Contains(key))
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original_attributes->Set(key, kv.second);
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}
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/* store the new value as null */
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if (value.IsObjectType<Dictionary>()) {
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Dictionary::Ptr valueDict = value;
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ObjectLock olock(valueDict);
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for (const auto& kv : valueDict) {
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String key = attr + "." + kv.first;
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if (!original_attributes->Contains(key))
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original_attributes->Set(key, Empty);
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}
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}
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} else if (!original_attributes->Contains(attr))
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original_attributes->Set(attr, oldValue);
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}
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dict->Set(key, value);
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} else {
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newValue = value;
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if (field.Attributes & FAConfig) {
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if (!original_attributes->Contains(attr)) {
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updated_original_attributes = true;
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original_attributes->Set(attr, oldValue);
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}
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}
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}
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ModAttrValidationUtils utils;
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ValidateField(fid, Lazy<Value>{newValue}, utils);
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SetField(fid, newValue);
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if (updateVersion && (field.Attributes & FAConfig))
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SetVersion(Utility::GetTime());
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if (updated_original_attributes)
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NotifyOriginalAttributes();
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}
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void ConfigObject::RestoreAttribute(const String& attr, bool updateVersion)
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{
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Type::Ptr type = GetReflectionType();
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std::vector<String> tokens = attr.Split(".");
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String fieldName = tokens[0];
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int fid = type->GetFieldId(fieldName);
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Value currentValue = GetField(fid);
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Dictionary::Ptr original_attributes = GetOriginalAttributes();
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if (!original_attributes)
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return;
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Value oldValue = original_attributes->Get(attr);
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Value newValue;
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if (tokens.size() > 1) {
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newValue = currentValue.Clone();
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Value current = newValue;
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if (current.IsEmpty())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Cannot restore non-existent object attribute"));
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String prefix = tokens[0];
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for (std::vector<String>::size_type i = 1; i < tokens.size() - 1; i++) {
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if (!current.IsObjectType<Dictionary>())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));
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Dictionary::Ptr dict = current;
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const String& key = tokens[i];
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prefix += "." + key;
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if (!dict->Contains(key))
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BOOST_THROW_EXCEPTION(std::invalid_argument("Cannot restore non-existent object attribute"));
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current = dict->Get(key);
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}
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if (!current.IsObjectType<Dictionary>())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));
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Dictionary::Ptr dict = current;
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const String& key = tokens[tokens.size() - 1];
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prefix += "." + key;
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std::vector<String> restoredAttrs;
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{
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ObjectLock olock(original_attributes);
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for (const auto& kv : original_attributes) {
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std::vector<String> originalTokens = String(kv.first).Split(".");
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if (tokens.size() > originalTokens.size())
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continue;
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bool match = true;
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for (std::vector<String>::size_type i = 0; i < tokens.size(); i++) {
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if (tokens[i] != originalTokens[i]) {
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match = false;
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break;
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}
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}
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if (!match)
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continue;
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Dictionary::Ptr dict;
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if (tokens.size() == originalTokens.size())
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dict = current;
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else {
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Value currentSub = current;
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for (std::vector<String>::size_type i = tokens.size() - 1; i < originalTokens.size() - 1; i++) {
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dict = currentSub;
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currentSub = dict->Get(originalTokens[i]);
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if (!currentSub.IsObjectType<Dictionary>()) {
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currentSub = new Dictionary();
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dict->Set(originalTokens[i], currentSub);
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}
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}
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dict = currentSub;
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}
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dict->Set(originalTokens[originalTokens.size() - 1], kv.second);
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restoredAttrs.push_back(kv.first);
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}
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}
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for (const String& attr : restoredAttrs)
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original_attributes->Remove(attr);
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} else {
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newValue = oldValue;
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}
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original_attributes->Remove(attr);
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SetField(fid, newValue);
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if (updateVersion)
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SetVersion(Utility::GetTime());
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}
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bool ConfigObject::IsAttributeModified(const String& attr) const
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{
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Dictionary::Ptr original_attributes = GetOriginalAttributes();
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if (!original_attributes)
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return false;
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return original_attributes->Contains(attr);
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}
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void ConfigObject::Register()
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{
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ASSERT(!OwnsLock());
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TypeImpl<ConfigObject>::Ptr type = static_pointer_cast<TypeImpl<ConfigObject> >(GetReflectionType());
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type->RegisterObject(this);
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}
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void ConfigObject::Unregister()
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{
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ASSERT(!OwnsLock());
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TypeImpl<ConfigObject>::Ptr type = static_pointer_cast<TypeImpl<ConfigObject> >(GetReflectionType());
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type->UnregisterObject(this);
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}
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void ConfigObject::Start(bool runtimeCreated)
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{
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ObjectImpl<ConfigObject>::Start(runtimeCreated);
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ObjectLock olock(this);
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SetStartCalled(true);
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}
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void ConfigObject::PreActivate()
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{
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CONTEXT("Setting 'active' to true for object '" + GetName() + "' of type '" + GetReflectionType()->GetName() + "'");
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ASSERT(!IsActive());
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SetActive(true, true);
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}
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void ConfigObject::Activate(bool runtimeCreated)
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{
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CONTEXT("Activating object '" + GetName() + "' of type '" + GetReflectionType()->GetName() + "'");
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{
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ObjectLock olock(this);
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Start(runtimeCreated);
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ASSERT(GetStartCalled());
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if (GetHAMode() == HARunEverywhere)
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SetAuthority(true);
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}
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NotifyActive();
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}
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void ConfigObject::Stop(bool runtimeRemoved)
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{
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ObjectImpl<ConfigObject>::Stop(runtimeRemoved);
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ObjectLock olock(this);
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SetStopCalled(true);
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}
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void ConfigObject::Deactivate(bool runtimeRemoved)
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{
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CONTEXT("Deactivating object '" + GetName() + "' of type '" + GetReflectionType()->GetName() + "'");
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{
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ObjectLock olock(this);
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if (!IsActive())
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return;
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SetActive(false, true);
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SetAuthority(false);
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Stop(runtimeRemoved);
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}
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ASSERT(GetStopCalled());
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NotifyActive();
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}
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void ConfigObject::OnConfigLoaded()
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{
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/* Nothing to do here. */
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}
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void ConfigObject::OnAllConfigLoaded()
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{
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static ConfigType *ctype;
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if (!ctype) {
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Type::Ptr type = Type::GetByName("Zone");
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ctype = dynamic_cast<ConfigType *>(type.get());
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}
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String zoneName = GetZoneName();
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if (!zoneName.IsEmpty())
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m_Zone = ctype->GetObject(zoneName);
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}
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void ConfigObject::CreateChildObjects(const Type::Ptr& childType)
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{
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/* Nothing to do here. */
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}
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void ConfigObject::OnStateLoaded()
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{
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/* Nothing to do here. */
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}
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void ConfigObject::Pause()
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{
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SetPauseCalled(true);
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}
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void ConfigObject::Resume()
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{
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SetResumeCalled(true);
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}
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void ConfigObject::SetAuthority(bool authority)
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{
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ObjectLock olock(this);
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if (authority && GetPaused()) {
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SetResumeCalled(false);
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Resume();
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ASSERT(GetResumeCalled());
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SetPaused(false);
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} else if (!authority && !GetPaused()) {
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SetPaused(true);
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SetPauseCalled(false);
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Pause();
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ASSERT(GetPauseCalled());
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}
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}
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void ConfigObject::DumpObjects(const String& filename, int attributeTypes)
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{
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Log(LogInformation, "ConfigObject")
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<< "Dumping program state to file '" << filename << "'";
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std::fstream fp;
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String tempFilename = Utility::CreateTempFile(filename + ".XXXXXX", 0600, fp);
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fp.exceptions(std::ofstream::failbit | std::ofstream::badbit);
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if (!fp)
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BOOST_THROW_EXCEPTION(std::runtime_error("Could not open '" + tempFilename + "' file"));
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StdioStream::Ptr sfp = new StdioStream(&fp, false);
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for (const Type::Ptr& type : Type::GetAllTypes()) {
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auto *dtype = dynamic_cast<ConfigType *>(type.get());
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if (!dtype)
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continue;
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for (const ConfigObject::Ptr& object : dtype->GetObjects()) {
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Dictionary::Ptr update = Serialize(object, attributeTypes);
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if (!update)
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continue;
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Dictionary::Ptr persistentObject = new Dictionary({
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{ "type", type->GetName() },
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{ "name", object->GetName() },
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{ "update", update }
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});
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String json = JsonEncode(persistentObject);
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NetString::WriteStringToStream(sfp, json);
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}
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}
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sfp->Close();
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fp.close();
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#ifdef _WIN32
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_unlink(filename.CStr());
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#endif /* _WIN32 */
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if (rename(tempFilename.CStr(), filename.CStr()) < 0) {
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BOOST_THROW_EXCEPTION(posix_error()
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<< boost::errinfo_api_function("rename")
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<< boost::errinfo_errno(errno)
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<< boost::errinfo_file_name(tempFilename));
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}
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}
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void ConfigObject::RestoreObject(const String& message, int attributeTypes)
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{
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Dictionary::Ptr persistentObject = JsonDecode(message);
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String type = persistentObject->Get("type");
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String name = persistentObject->Get("name");
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ConfigObject::Ptr object = GetObject(type, name);
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if (!object)
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return;
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#ifdef I2_DEBUG
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Log(LogDebug, "ConfigObject")
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<< "Restoring object '" << name << "' of type '" << type << "'.";
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#endif /* I2_DEBUG */
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Dictionary::Ptr update = persistentObject->Get("update");
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Deserialize(object, update, false, attributeTypes);
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object->OnStateLoaded();
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object->SetStateLoaded(true);
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}
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void ConfigObject::RestoreObjects(const String& filename, int attributeTypes)
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{
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if (!Utility::PathExists(filename))
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return;
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Log(LogInformation, "ConfigObject")
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<< "Restoring program state from file '" << filename << "'";
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std::fstream fp;
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fp.open(filename.CStr(), std::ios_base::in);
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StdioStream::Ptr sfp = new StdioStream (&fp, false);
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unsigned long restored = 0;
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WorkQueue upq(25000, Configuration::Concurrency);
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upq.SetName("ConfigObject::RestoreObjects");
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String message;
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StreamReadContext src;
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for (;;) {
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StreamReadStatus srs = NetString::ReadStringFromStream(sfp, &message, src);
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if (srs == StatusEof)
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break;
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if (srs != StatusNewItem)
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continue;
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upq.Enqueue(std::bind(&ConfigObject::RestoreObject, message, attributeTypes));
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restored++;
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}
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sfp->Close();
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upq.Join();
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unsigned long no_state = 0;
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for (const Type::Ptr& type : Type::GetAllTypes()) {
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auto *dtype = dynamic_cast<ConfigType *>(type.get());
|
|
|
|
if (!dtype)
|
|
continue;
|
|
|
|
for (const ConfigObject::Ptr& object : dtype->GetObjects()) {
|
|
if (!object->GetStateLoaded()) {
|
|
object->OnStateLoaded();
|
|
object->SetStateLoaded(true);
|
|
|
|
no_state++;
|
|
}
|
|
}
|
|
}
|
|
|
|
Log(LogInformation, "ConfigObject")
|
|
<< "Restored " << restored << " objects. Loaded " << no_state << " new objects without state.";
|
|
}
|
|
|
|
void ConfigObject::StopObjects()
|
|
{
|
|
std::vector<Type::Ptr> types = Type::GetAllTypes();
|
|
|
|
std::sort(types.begin(), types.end(), [](const Type::Ptr& a, const Type::Ptr& b) {
|
|
if (a->GetActivationPriority() > b->GetActivationPriority())
|
|
return true;
|
|
return false;
|
|
});
|
|
|
|
for (const Type::Ptr& type : types) {
|
|
auto *dtype = dynamic_cast<ConfigType *>(type.get());
|
|
|
|
if (!dtype)
|
|
continue;
|
|
|
|
for (const ConfigObject::Ptr& object : dtype->GetObjects()) {
|
|
#ifdef I2_DEBUG
|
|
Log(LogDebug, "ConfigObject")
|
|
<< "Deactivate() called for config object '" << object->GetName() << "' with type '" << type->GetName() << "'.";
|
|
#endif /* I2_DEBUG */
|
|
object->Deactivate();
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConfigObject::DumpModifiedAttributes(const std::function<void(const ConfigObject::Ptr&, const String&, const Value&)>& callback)
|
|
{
|
|
for (const Type::Ptr& type : Type::GetAllTypes()) {
|
|
auto *dtype = dynamic_cast<ConfigType *>(type.get());
|
|
|
|
if (!dtype)
|
|
continue;
|
|
|
|
for (const ConfigObject::Ptr& object : dtype->GetObjects()) {
|
|
Dictionary::Ptr originalAttributes = object->GetOriginalAttributes();
|
|
|
|
if (!originalAttributes)
|
|
continue;
|
|
|
|
ObjectLock olock(originalAttributes);
|
|
for (const Dictionary::Pair& kv : originalAttributes) {
|
|
String key = kv.first;
|
|
|
|
Type::Ptr type = object->GetReflectionType();
|
|
|
|
std::vector<String> tokens = key.Split(".");
|
|
|
|
String fieldName = tokens[0];
|
|
int fid = type->GetFieldId(fieldName);
|
|
|
|
Value currentValue = object->GetField(fid);
|
|
Value modifiedValue;
|
|
|
|
if (tokens.size() > 1) {
|
|
Value current = currentValue;
|
|
|
|
for (std::vector<String>::size_type i = 1; i < tokens.size() - 1; i++) {
|
|
if (!current.IsObjectType<Dictionary>())
|
|
BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));
|
|
|
|
Dictionary::Ptr dict = current;
|
|
const String& key = tokens[i];
|
|
|
|
if (!dict->Contains(key))
|
|
break;
|
|
|
|
current = dict->Get(key);
|
|
}
|
|
|
|
if (!current.IsObjectType<Dictionary>())
|
|
BOOST_THROW_EXCEPTION(std::invalid_argument("Value must be a dictionary."));
|
|
|
|
Dictionary::Ptr dict = current;
|
|
const String& key = tokens[tokens.size() - 1];
|
|
|
|
modifiedValue = dict->Get(key);
|
|
} else
|
|
modifiedValue = currentValue;
|
|
|
|
callback(object, key, modifiedValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
ConfigObject::Ptr ConfigObject::GetObject(const String& type, const String& name)
|
|
{
|
|
Type::Ptr ptype = Type::GetByName(type);
|
|
auto *ctype = dynamic_cast<ConfigType *>(ptype.get());
|
|
|
|
if (!ctype)
|
|
return nullptr;
|
|
|
|
return ctype->GetObject(name);
|
|
}
|
|
|
|
ConfigObject::Ptr ConfigObject::GetZone() const
|
|
{
|
|
return m_Zone;
|
|
}
|
|
|
|
Dictionary::Ptr ConfigObject::GetSourceLocation() const
|
|
{
|
|
DebugInfo di = GetDebugInfo();
|
|
|
|
return new Dictionary({
|
|
{ "path", di.Path },
|
|
{ "first_line", di.FirstLine },
|
|
{ "first_column", di.FirstColumn },
|
|
{ "last_line", di.LastLine },
|
|
{ "last_column", di.LastColumn }
|
|
});
|
|
}
|
|
|
|
NameComposer::~NameComposer()
|
|
{ }
|