source: XMLIO_V2/external/include/Poco/Net/RemoteSyslogChannel.h @ 80

//
// RemoteSyslogChannel.h
//
// $Id: //poco/1.3/Net/include/Poco/Net/RemoteSyslogChannel.h#2 $
//
// Library: Net
// Package: Logging
// Module:  RemoteSyslogChannel
//
// Definition of the RemoteSyslogChannel class.
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef Net_RemoteSyslogChannel_INCLUDED
#define Net_RemoteSyslogChannel_INCLUDED


#include "Poco/Net/Net.h"
#include "Poco/Channel.h"
#include "Poco/Net/DatagramSocket.h"


namespace Poco {
namespace Net {


class Net_API RemoteSyslogChannel: public Poco::Channel
        /// This Channel implements remote syslog logging over UDP according
        /// to the syslog Working Group Internet Draft:
        /// "The syslog Protocol" <http://www.ietf.org/internet-drafts/draft-ietf-syslog-protocol-17.txt>, 
        /// and "Transmission of syslog messages over UDP" <http://www.ietf.org/internet-drafts/draft-ietf-syslog-transport-udp-07.txt>.
        ///
        /// In addition, RemoteSyslogChannel also supports the "old" BSD syslog
        /// protocol, as described in RFC 3164.
{
public:
        static const std::string BSD_TIMEFORMAT;
        static const std::string SYSLOG_TIMEFORMAT;

        enum Severity
        {
                SYSLOG_EMERGENCY     = 0, /// Emergency: system is unusable
                SYSLOG_ALERT         = 1, /// Alert: action must be taken immediately
                SYSLOG_CRITICAL      = 2, /// Critical: critical conditions
                SYSLOG_ERROR         = 3, /// Error: error conditions
                SYSLOG_WARNING       = 4, /// Warning: warning conditions
                SYSLOG_NOTICE        = 5, /// Notice: normal but significant condition
                SYSLOG_INFORMATIONAL = 6, /// Informational: informational messages
                SYSLOG_DEBUG         = 7  /// Debug: debug-level messages
        };
        
        enum Facility
        {
                SYSLOG_KERN     = ( 0<<3), /// kernel messages
                SYSLOG_USER     = ( 1<<3), /// random user-level messages
                SYSLOG_MAIL     = ( 2<<3), /// mail system
                SYSLOG_DAEMON   = ( 3<<3), /// system daemons
                SYSLOG_AUTH     = ( 4<<3), /// security/authorization messages
                SYSLOG_SYSLOG   = ( 5<<3), /// messages generated internally by syslogd
                SYSLOG_LPR      = ( 6<<3), /// line printer subsystem
                SYSLOG_NEWS     = ( 7<<3), /// network news subsystem
                SYSLOG_UUCP     = ( 8<<3), /// UUCP subsystem
                SYSLOG_CRON     = ( 9<<3), /// clock daemon
                SYSLOG_AUTHPRIV = (10<<3), /// security/authorization messages (private)
                SYSLOG_FTP      = (11<<3), /// ftp daemon
                SYSLOG_NTP      = (12<<3), /// ntp subsystem
                SYSLOG_LOGAUDIT = (13<<3), /// log audit
                SYSLOG_LOGALERT = (14<<3), /// log alert
                SYSLOG_CLOCK    = (15<<3), /// clock deamon
                SYSLOG_LOCAL0   = (16<<3), /// reserved for local use
                SYSLOG_LOCAL1   = (17<<3), /// reserved for local use
                SYSLOG_LOCAL2   = (18<<3), /// reserved for local use
                SYSLOG_LOCAL3   = (19<<3), /// reserved for local use
                SYSLOG_LOCAL4   = (20<<3), /// reserved for local use
                SYSLOG_LOCAL5   = (21<<3), /// reserved for local use
                SYSLOG_LOCAL6   = (22<<3), /// reserved for local use
                SYSLOG_LOCAL7   = (23<<3)  /// reserved for local use
        };
        
        enum
        {
                SYSLOG_PORT = 514
        };
        
        RemoteSyslogChannel();
                /// Creates a RemoteSyslogChannel.
                
        RemoteSyslogChannel(const std::string& address, const std::string& name, int facility = SYSLOG_USER, bool bsdFormat = false);
                /// Creates a RemoteSyslogChannel with the given target address, name, and facility.
                /// If bsdFormat is true, messages are formatted according to RFC 3164.
        
        void open();
                /// Opens the RemoteSyslogChannel.
                
        void close();
                /// Closes the RemoteSyslogChannel.
                
        void log(const Message& msg);
                /// Sends the message's text to the syslog service.
                
        void setProperty(const std::string& name, const std::string& value);
                /// Sets the property with the given value.
                ///
                /// The following properties are supported:
                ///     * name:      The name used to identify the source of log messages.
                ///     * facility:  The facility added to each log message. See the Facility enumeration for a list of supported values.
                ///                  The LOG_ prefix can be omitted and values are case insensitive (e.g. a facility value "mail" is recognized as SYSLOG_MAIL)
                ///     * format:    "bsd" (RFC 3164 format) or "new" (default)
                ///     * loghost:   The target IP address or host name where log messages are sent. Optionally, a port number (separated
                ///                  by a colon) can also be specified.
                ///     * host:      (optional) Host name included in syslog messages. If not specified, the host's real domain name or
                ///                  IP address will be used.
                
        std::string getProperty(const std::string& name) const;
                /// Returns the value of the property with the given name.

        static void registerChannel();
                /// Registers the channel with the global LoggingFactory.

        static const std::string PROP_NAME;
        static const std::string PROP_FACILITY;
        static const std::string PROP_FORMAT;
        static const std::string PROP_LOGHOST;
        static const std::string PROP_HOST;

protected:
        ~RemoteSyslogChannel();
        static int getPrio(const Message& msg);

private:
        std::string _logHost;
        std::string _name;
        std::string _host;
        int  _facility;
        bool _bsdFormat;
        DatagramSocket _socket;
        bool _open;
};


} } // namespace Poco::Net


#endif // Net_RemoteSyslogChannel_INCLUDED