mirror of https://github.com/Icinga/icinga2.git
612 lines
17 KiB
C++
612 lines
17 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2013 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 "base/logger_fwd.h"
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#include "base/objectlock.h"
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#include "base/convert.h"
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#include "base/utility.h"
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#include "base/application.h"
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#include "base/dynamictype.h"
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#include "base/exception.h"
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#include "db_ido/dbtype.h"
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#include "db_ido/dbvalue.h"
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#include "db_ido_mysql/idomysqlconnection.h"
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#include <boost/tuple/tuple.hpp>
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#include <boost/foreach.hpp>
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using namespace icinga;
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REGISTER_TYPE(IdoMysqlConnection);
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#define SCHEMA_VERSION "1.11.0"
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void IdoMysqlConnection::Start(void)
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{
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DbConnection::Start();
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m_Connected = false;
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m_QueryQueue.SetExceptionCallback(boost::bind(&IdoMysqlConnection::ExceptionHandler, this, _1));
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m_TxTimer = make_shared<Timer>();
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m_TxTimer->SetInterval(5);
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m_TxTimer->OnTimerExpired.connect(boost::bind(&IdoMysqlConnection::TxTimerHandler, this));
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m_TxTimer->Start();
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m_ReconnectTimer = make_shared<Timer>();
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m_ReconnectTimer->SetInterval(10);
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m_ReconnectTimer->OnTimerExpired.connect(boost::bind(&IdoMysqlConnection::ReconnectTimerHandler, this));
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m_ReconnectTimer->Start();
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m_ReconnectTimer->Reschedule(0);
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ASSERT(mysql_thread_safe());
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}
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void IdoMysqlConnection::Stop(void)
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{
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m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::Disconnect, this));
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m_QueryQueue.Join();
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}
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void IdoMysqlConnection::ExceptionHandler(boost::exception_ptr exp)
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{
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Log(LogCritical, "db_ido_mysql", "Exception during database operation: " + DiagnosticInformation(exp));
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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if (m_Connected) {
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mysql_close(&m_Connection);
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m_Connected = false;
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}
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}
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void IdoMysqlConnection::AssertOnWorkQueue(void)
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{
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ASSERT(boost::this_thread::get_id() == m_QueryQueue.GetThreadId());
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}
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void IdoMysqlConnection::Disconnect(void)
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{
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AssertOnWorkQueue();
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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if (!m_Connected)
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return;
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Query("COMMIT");
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mysql_close(&m_Connection);
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m_Connected = false;
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}
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void IdoMysqlConnection::TxTimerHandler(void)
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{
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m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::NewTransaction, this), true);
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}
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void IdoMysqlConnection::NewTransaction(void)
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{
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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if (!m_Connected)
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return;
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Query("COMMIT");
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Query("BEGIN");
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}
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void IdoMysqlConnection::ReconnectTimerHandler(void)
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{
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m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::Reconnect, this));
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}
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void IdoMysqlConnection::Reconnect(void)
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{
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AssertOnWorkQueue();
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CONTEXT("Reconnecting to MySQL IDO database '" + GetName() + "'");
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{
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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bool reconnect = false;
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if (m_Connected) {
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/* Check if we're really still connected */
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if (mysql_ping(&m_Connection) == 0)
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return;
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mysql_close(&m_Connection);
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m_Connected = false;
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reconnect = true;
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}
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ClearIDCache();
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String ihost, iuser, ipasswd, idb;
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const char *host, *user , *passwd, *db;
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long port;
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ihost = GetHost();
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iuser = GetUser();
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ipasswd = GetPassword();
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idb = GetDatabase();
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host = (!ihost.IsEmpty()) ? ihost.CStr() : NULL;
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port = GetPort();
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user = (!iuser.IsEmpty()) ? iuser.CStr() : NULL;
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passwd = (!ipasswd.IsEmpty()) ? ipasswd.CStr() : NULL;
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db = (!idb.IsEmpty()) ? idb.CStr() : NULL;
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if (!mysql_init(&m_Connection))
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BOOST_THROW_EXCEPTION(std::bad_alloc());
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if (!mysql_real_connect(&m_Connection, host, user, passwd, db, port, NULL, 0))
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BOOST_THROW_EXCEPTION(std::runtime_error(mysql_error(&m_Connection)));
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m_Connected = true;
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String dbVersionName = "idoutils";
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Array::Ptr version_rows = Query("SELECT version FROM " + GetTablePrefix() + "dbversion WHERE name='" + Escape(dbVersionName) + "'");
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if (version_rows->GetLength() == 0)
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BOOST_THROW_EXCEPTION(std::runtime_error("Schema does not provide any valid version! Verify your schema installation."));
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Dictionary::Ptr version_row = version_rows->Get(0);
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String version = version_row->Get("version");
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if (Utility::CompareVersion(SCHEMA_VERSION, version) < 0) {
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BOOST_THROW_EXCEPTION(std::runtime_error("Schema version '" + version + "' does not match the required version '" +
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SCHEMA_VERSION + "'! Please check the upgrade documentation."));
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}
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String instanceName = GetInstanceName();
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Array::Ptr rows = Query("SELECT instance_id FROM " + GetTablePrefix() + "instances WHERE instance_name = '" + Escape(instanceName) + "'");
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if (rows->GetLength() == 0) {
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Query("INSERT INTO " + GetTablePrefix() + "instances (instance_name, instance_description) VALUES ('" + Escape(instanceName) + "', '" + Escape(GetInstanceDescription()) + "')");
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m_InstanceID = GetLastInsertID();
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} else {
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Dictionary::Ptr row = rows->Get(0);
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m_InstanceID = DbReference(row->Get("instance_id"));
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}
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std::ostringstream msgbuf;
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msgbuf << "MySQL IDO instance id: " << static_cast<long>(m_InstanceID) << " (schema version: '" + version + "')";
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Log(LogInformation, "db_ido_mysql", msgbuf.str());
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/* set session time zone to utc */
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Query("SET SESSION TIME_ZONE='+00:00'");
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/* record connection */
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Query("INSERT INTO " + GetTablePrefix() + "conninfo " +
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"(instance_id, connect_time, last_checkin_time, agent_name, agent_version, connect_type, data_start_time) VALUES ("
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+ Convert::ToString(static_cast<long>(m_InstanceID)) + ", NOW(), NOW(), 'icinga2 db_ido_mysql', '" + Escape(Application::GetVersion())
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+ "', '" + (reconnect ? "RECONNECT" : "INITIAL") + "', NOW())");
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/* clear config tables for the initial config dump */
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ClearConfigTables();
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std::ostringstream q1buf;
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q1buf << "SELECT object_id, objecttype_id, name1, name2, is_active FROM " + GetTablePrefix() + "objects WHERE instance_id = " << static_cast<long>(m_InstanceID);
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rows = Query(q1buf.str());
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ObjectLock olock(rows);
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BOOST_FOREACH(const Dictionary::Ptr& row, rows) {
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DbType::Ptr dbtype = DbType::GetByID(row->Get("objecttype_id"));
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if (!dbtype)
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continue;
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DbObject::Ptr dbobj = dbtype->GetOrCreateObjectByName(row->Get("name1"), row->Get("name2"));
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SetObjectID(dbobj, DbReference(row->Get("object_id")));
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SetObjectActive(dbobj, row->Get("is_active"));
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}
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Query("BEGIN");
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}
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UpdateAllObjects();
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}
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void IdoMysqlConnection::ClearConfigTables(void)
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{
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/* TODO make hardcoded table names modular */
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ClearConfigTable("commands");
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ClearConfigTable("comments");
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ClearConfigTable("contact_addresses");
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ClearConfigTable("contact_notificationcommands");
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ClearConfigTable("contactgroup_members");
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ClearConfigTable("contactgroups");
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ClearConfigTable("contacts");
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ClearConfigTable("contactstatus");
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ClearConfigTable("customvariables");
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ClearConfigTable("customvariablestatus");
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ClearConfigTable("host_contactgroups");
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ClearConfigTable("host_contacts");
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ClearConfigTable("host_parenthosts");
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ClearConfigTable("hostdependencies");
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ClearConfigTable("hostgroup_members");
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ClearConfigTable("hostgroups");
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ClearConfigTable("hosts");
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ClearConfigTable("hoststatus");
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ClearConfigTable("programstatus");
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ClearConfigTable("scheduleddowntime");
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ClearConfigTable("service_contactgroups");
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ClearConfigTable("service_contacts");
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ClearConfigTable("servicedependencies");
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ClearConfigTable("servicegroup_members");
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ClearConfigTable("servicegroups");
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ClearConfigTable("services");
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ClearConfigTable("servicestatus");
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ClearConfigTable("timeperiod_timeranges");
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ClearConfigTable("timeperiods");
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}
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void IdoMysqlConnection::ClearConfigTable(const String& table)
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{
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Query("DELETE FROM " + GetTablePrefix() + table + " WHERE instance_id = " + Convert::ToString(static_cast<long>(m_InstanceID)));
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}
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Array::Ptr IdoMysqlConnection::Query(const String& query)
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{
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AssertOnWorkQueue();
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Log(LogDebug, "db_ido_mysql", "Query: " + query);
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if (mysql_query(&m_Connection, query.CStr()) != 0)
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BOOST_THROW_EXCEPTION(
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database_error()
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<< errinfo_message(mysql_error(&m_Connection))
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<< errinfo_database_query(query)
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);
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MYSQL_RES *result = mysql_use_result(&m_Connection);
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if (!result) {
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if (mysql_field_count(&m_Connection) > 0)
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BOOST_THROW_EXCEPTION(
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database_error()
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<< errinfo_message(mysql_error(&m_Connection))
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<< errinfo_database_query(query)
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);
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return Array::Ptr();
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}
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Array::Ptr rows = make_shared<Array>();
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for (;;) {
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Dictionary::Ptr row = FetchRow(result);
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if (!row)
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break;
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rows->Add(row);
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}
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mysql_free_result(result);
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return rows;
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}
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DbReference IdoMysqlConnection::GetLastInsertID(void)
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{
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AssertOnWorkQueue();
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return DbReference(mysql_insert_id(&m_Connection));
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}
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String IdoMysqlConnection::Escape(const String& s)
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{
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AssertOnWorkQueue();
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size_t length = s.GetLength();
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char *to = new char[s.GetLength() * 2 + 1];
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mysql_real_escape_string(&m_Connection, to, s.CStr(), length);
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String result = String(to);
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delete [] to;
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return result;
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}
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Dictionary::Ptr IdoMysqlConnection::FetchRow(MYSQL_RES *result)
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{
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AssertOnWorkQueue();
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MYSQL_ROW row;
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MYSQL_FIELD *field;
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unsigned long *lengths, i;
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row = mysql_fetch_row(result);
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if (!row)
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return Dictionary::Ptr();
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lengths = mysql_fetch_lengths(result);
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if (!lengths)
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return Dictionary::Ptr();
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Dictionary::Ptr dict = make_shared<Dictionary>();
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mysql_field_seek(result, 0);
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for (field = mysql_fetch_field(result), i = 0; field; field = mysql_fetch_field(result), i++)
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dict->Set(field->name, String(row[i], row[i] + lengths[i]));
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return dict;
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}
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void IdoMysqlConnection::ActivateObject(const DbObject::Ptr& dbobj)
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{
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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InternalActivateObject(dbobj);
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}
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void IdoMysqlConnection::InternalActivateObject(const DbObject::Ptr& dbobj)
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{
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if (!m_Connected)
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return;
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DbReference dbref = GetObjectID(dbobj);
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std::ostringstream qbuf;
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if (!dbref.IsValid()) {
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qbuf << "INSERT INTO " + GetTablePrefix() + "objects (instance_id, objecttype_id, name1, name2, is_active) VALUES ("
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<< static_cast<long>(m_InstanceID) << ", " << dbobj->GetType()->GetTypeID() << ", "
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<< "'" << Escape(dbobj->GetName1()) << "', '" << Escape(dbobj->GetName2()) << "', 1)";
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Query(qbuf.str());
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SetObjectID(dbobj, GetLastInsertID());
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} else {
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qbuf << "UPDATE " + GetTablePrefix() + "objects SET is_active = 1 WHERE object_id = " << static_cast<long>(dbref);
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Query(qbuf.str());
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}
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}
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void IdoMysqlConnection::DeactivateObject(const DbObject::Ptr& dbobj)
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{
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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if (!m_Connected)
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return;
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DbReference dbref = GetObjectID(dbobj);
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if (!dbref.IsValid())
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return;
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std::ostringstream qbuf;
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qbuf << "UPDATE " + GetTablePrefix() + "objects SET is_active = 0 WHERE object_id = " << static_cast<long>(dbref);
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Query(qbuf.str());
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/* Note that we're _NOT_ clearing the db refs via SetReference/SetConfigUpdate/SetStatusUpdate
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* because the object is still in the database. */
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}
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/* caller must hold m_ConnectionMutex */
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bool IdoMysqlConnection::FieldToEscapedString(const String& key, const Value& value, Value *result)
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{
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if (key == "instance_id") {
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*result = static_cast<long>(m_InstanceID);
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return true;
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}
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if (key == "notification_id") {
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*result = static_cast<long>(m_LastNotificationID);
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return true;
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}
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Value rawvalue = DbValue::ExtractValue(value);
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if (rawvalue.IsObjectType<DynamicObject>()) {
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DbObject::Ptr dbobjcol = DbObject::GetOrCreateByObject(rawvalue);
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if (!dbobjcol) {
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*result = 0;
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return true;
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}
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DbReference dbrefcol;
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if (DbValue::IsObjectInsertID(value)) {
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dbrefcol = GetInsertID(dbobjcol);
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ASSERT(dbrefcol.IsValid());
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} else {
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dbrefcol = GetObjectID(dbobjcol);
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if (!dbrefcol.IsValid()) {
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InternalActivateObject(dbobjcol);
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dbrefcol = GetObjectID(dbobjcol);
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if (!dbrefcol.IsValid())
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return false;
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}
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}
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*result = static_cast<long>(dbrefcol);
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} else if (DbValue::IsTimestamp(value)) {
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long ts = rawvalue;
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std::ostringstream msgbuf;
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msgbuf << "FROM_UNIXTIME(" << ts << ")";
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*result = Value(msgbuf.str());
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} else if (DbValue::IsTimestampNow(value)) {
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*result = "NOW()";
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} else {
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*result = "'" + Escape(rawvalue) + "'";
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}
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return true;
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}
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void IdoMysqlConnection::ExecuteQuery(const DbQuery& query)
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{
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ASSERT(query.Category != DbCatInvalid);
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m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteQuery, this, query), true);
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}
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void IdoMysqlConnection::InternalExecuteQuery(const DbQuery& query)
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{
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boost::mutex::scoped_lock lock(m_ConnectionMutex);
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if ((query.Category & GetCategories()) == 0)
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return;
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if (!m_Connected)
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return;
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std::ostringstream qbuf, where;
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int type;
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if (query.WhereCriteria) {
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where << " WHERE ";
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ObjectLock olock(query.WhereCriteria);
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String key;
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Value value;
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bool first = true;
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BOOST_FOREACH(boost::tie(key, value), query.WhereCriteria) {
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if (!FieldToEscapedString(key, value, &value))
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return;
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if (!first)
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where << " AND ";
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where << key << " = " << value;
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if (first)
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first = false;
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}
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}
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if ((query.Type & DbQueryInsert) && (query.Type & DbQueryUpdate)) {
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bool hasid = false;
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ASSERT(query.Object);
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if (query.ConfigUpdate)
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hasid = GetConfigUpdate(query.Object);
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else if (query.StatusUpdate)
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hasid = GetStatusUpdate(query.Object);
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else
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ASSERT(!"Invalid query flags.");
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if (hasid)
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type = DbQueryUpdate;
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else
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type = DbQueryInsert;
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} else
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type = query.Type;
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switch (type) {
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case DbQueryInsert:
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qbuf << "INSERT INTO " << GetTablePrefix() << query.Table;
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break;
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case DbQueryUpdate:
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qbuf << "UPDATE " << GetTablePrefix() << query.Table << " SET";
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break;
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case DbQueryDelete:
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qbuf << "DELETE FROM " << GetTablePrefix() << query.Table;
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break;
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default:
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ASSERT(!"Invalid query type.");
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}
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if (type == DbQueryInsert || type == DbQueryUpdate) {
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String cols;
|
|
String values;
|
|
|
|
ObjectLock olock(query.Fields);
|
|
|
|
String key;
|
|
Value value;
|
|
bool first = true;
|
|
BOOST_FOREACH(boost::tie(key, value), query.Fields) {
|
|
if (!FieldToEscapedString(key, value, &value))
|
|
return;
|
|
|
|
if (type == DbQueryInsert) {
|
|
if (!first) {
|
|
cols += ", ";
|
|
values += ", ";
|
|
}
|
|
|
|
cols += key;
|
|
values += value;
|
|
} else {
|
|
if (!first)
|
|
qbuf << ", ";
|
|
|
|
qbuf << " " << key << " = " << value;
|
|
}
|
|
|
|
if (first)
|
|
first = false;
|
|
}
|
|
|
|
if (type == DbQueryInsert)
|
|
qbuf << " (" << cols << ") VALUES (" << values << ")";
|
|
}
|
|
|
|
if (type != DbQueryInsert)
|
|
qbuf << where.str();
|
|
|
|
Query(qbuf.str());
|
|
|
|
if (query.Object) {
|
|
if (query.ConfigUpdate)
|
|
SetConfigUpdate(query.Object, true);
|
|
else if (query.StatusUpdate)
|
|
SetStatusUpdate(query.Object, true);
|
|
|
|
if (type == DbQueryInsert && query.ConfigUpdate)
|
|
SetInsertID(query.Object, GetLastInsertID());
|
|
}
|
|
|
|
if (type == DbQueryInsert && query.Table == "notifications") { // FIXME remove hardcoded table name
|
|
m_LastNotificationID = GetLastInsertID();
|
|
Log(LogDebug, "db_ido", "saving contactnotification notification_id=" + Convert::ToString(static_cast<long>(m_LastNotificationID)));
|
|
}
|
|
}
|
|
|
|
void IdoMysqlConnection::CleanUpExecuteQuery(const String& table, const String& time_column, double max_age)
|
|
{
|
|
m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalCleanUpExecuteQuery, this, table, time_column, max_age), true);
|
|
}
|
|
|
|
void IdoMysqlConnection::InternalCleanUpExecuteQuery(const String& table, const String& time_column, double max_age)
|
|
{
|
|
boost::mutex::scoped_lock lock(m_ConnectionMutex);
|
|
|
|
if (!m_Connected)
|
|
return;
|
|
|
|
Query("DELETE FROM " + GetTablePrefix() + table + " WHERE instance_id = " +
|
|
Convert::ToString(static_cast<long>(m_InstanceID)) + " AND " + time_column +
|
|
" < FROM_UNIXTIME(" + Convert::ToString(static_cast<long>(max_age)) + ")");
|
|
}
|