Files
harbour-core/contrib/xhb/hblognet.prg
2017-09-14 01:12:12 +00:00

317 lines
7.6 KiB
Plaintext

/*
* Versatile logging system - Logger sending log message to email
*
* Copyright 2003 Giancarlo Niccolai <gian@niccolai.ws>
*
* 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, 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; see the file LICENSE.txt. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbclass.ch"
#define CRLF Chr( 13 ) + Chr( 10 )
CREATE CLASS HB_LogEmail INHERIT HB_LogChannel
VAR cServer
VAR cAddress INIT "log@example.org"
VAR cSubject INIT "Log message from xHarbour application"
VAR cSendTo
VAR cHelo INIT "xHarbour Email Logger"
VAR nPort INIT 25
VAR cPrefix
VAR cPostfix
METHOD New( nLevel, cHelo, cServer, cSendTo, cSubject, cFrom )
METHOD Open( cName )
METHOD Close( cName )
PROTECTED:
METHOD Send( nStyle, cMessage, cName, nPriority )
HIDDEN:
METHOD GetOk( skCon )
METHOD Prepare( nStyle, cMessage, cName, nPriority )
ENDCLASS
METHOD New( nLevel, cHelo, cServer, cSendTo, cSubject, cFrom ) CLASS HB_LogEmail
LOCAL nPos
::Super:New( nLevel )
nPos := At( ":", cServer )
IF nPos > 0
::nPort := Val( SubStr( cServer, nPos + 1 ) )
cServer := SubStr( cServer, 1, nPos - 1 )
ENDIF
::cServer := cServer
::cSendTo := cSendTo
IF cHelo != NIL
::cHelo := cHelo
ENDIF
IF cSubject != NIL
::cSubject := cSubject
ENDIF
IF cFrom != NIL
::cAddress := cFrom
ENDIF
RETURN Self
/* hb_inetInit() must be called here */
METHOD Open( cName ) CLASS HB_LogEmail
HB_SYMBOL_UNUSED( cName )
hb_inetInit()
RETURN .T.
/* hb_inetCleanup() to be called here */
METHOD Close( cName ) CLASS HB_LogEmail
HB_SYMBOL_UNUSED( cName )
hb_inetCleanup()
RETURN .T.
/* Sends the real message in email */
METHOD Send( nStyle, cMessage, cName, nPriority ) CLASS HB_LogEmail
LOCAL skCon := hb_inetCreate()
hb_inetTimeout( skCon, 10000 )
hb_inetConnect( ::cServer, ::nPort, skCon )
IF hb_inetErrorCode( skCon ) != 0 .OR. ! ::GetOk( skCon )
RETURN .F.
ENDIF
hb_inetSendAll( skCon, "HELO " + ::cHelo + CRLF )
IF ! ::GetOk( skCon )
RETURN .F.
ENDIF
hb_inetSendAll( skCon, "MAIL FROM: <" + ::cAddress + ">" + CRLF )
IF ! ::GetOk( skCon )
RETURN .F.
ENDIF
hb_inetSendAll( skCon, "RCPT TO: <" + ::cSendTo + ">" + CRLF )
IF ! ::GetOk( skCon )
RETURN .F.
ENDIF
hb_inetSendAll( skCon, "DATA" + CRLF )
IF ! ::GetOk( skCon )
RETURN .F.
ENDIF
cMessage := ::Prepare( nStyle, cMessage, cName, nPriority )
hb_inetSendAll( skCon, cMessage + CRLF + "." + CRLF )
IF ! ::GetOk( skCon )
RETURN .F.
ENDIF
hb_inetSendAll( skCon, "QUIT" + CRLF )
RETURN ::GetOk( skCon ) // if quit fails, the mail does not go!
/* Get the reply and returns true if it is alright */
METHOD GetOk( skCon ) CLASS HB_LogEmail
LOCAL nLen, cReply
cReply := hb_inetRecvLine( skCon, @nLen, 128 )
IF hb_inetErrorCode( skcon ) != 0 .OR. SubStr( cReply, 1, 1 ) == "5"
RETURN .F.
ENDIF
RETURN .T.
METHOD Prepare( nStyle, cMessage, cName, nPriority ) CLASS HB_LogEmail
LOCAL cPre
cPre := "FROM: " + ::cAddress + CRLF + ;
"TO: " + ::cSendTo + CRLF + ;
"Subject:" + ::cSubject + CRLF + CRLF
IF ! Empty( ::cPrefix )
cPre += ::cPrefix + CRLF + CRLF
ENDIF
cPre += ::Format( nStyle, cMessage, cName, nPriority )
IF ! Empty( ::cPostfix )
cPre += CRLF + CRLF + ::cPostfix + CRLF
ENDIF
RETURN cPre
/* Channel for monitors listening on a port */
CREATE CLASS HB_LogInetPort FROM HB_LogChannel
VAR nPort INIT 7761
VAR aListeners INIT {}
VAR skIn
VAR bTerminate INIT .F.
VAR nThread
VAR mtxBusy
METHOD New( nLevel, nPort )
METHOD Open( cName )
METHOD Close( cName )
PROTECTED:
METHOD Send( nStyle, cMessage, cName, nPriority )
HIDDEN:
METHOD AcceptCon()
ENDCLASS
METHOD New( nLevel, nPort ) CLASS HB_LogInetPort
::Super:New( nLevel )
IF nPort != NIL
::nPort := nPort
ENDIF
RETURN Self
METHOD Open( cName ) CLASS HB_LogInetPort
HB_SYMBOL_UNUSED( cName )
hb_inetInit()
::skIn := hb_inetServer( ::nPort )
IF ::skIn == NIL
RETURN .F.
ENDIF
::mtxBusy := hb_mutexCreate()
::nThread := hb_threadStart( Self, "AcceptCon" )
RETURN .T.
METHOD Close( cName ) CLASS HB_LogInetPort
LOCAL sk
HB_SYMBOL_UNUSED( cName )
IF ::skIn == NIL
RETURN .F.
ENDIF
// kind termination request
::bTerminate := .T.
hb_threadJoin( ::nThread )
hb_inetClose( ::skIn )
// we now are sure that incoming thread index is not used.
DO WHILE Len( ::aListeners ) > 0
sk := ATail( ::aListeners )
ASize( ::aListeners, Len( ::aListeners ) - 1 )
hb_inetClose( sk )
ENDDO
hb_inetCleanup()
RETURN .T.
METHOD Send( nStyle, cMessage, cName, nPriority ) CLASS HB_LogInetPort
LOCAL sk, nCount
// be sure thread is not busy now
hb_mutexLock( ::mtxBusy )
// now we transmit the message to all the available channels
cMessage := ::Format( nStyle, cMessage, cName, nPriority )
nCount := 1
DO WHILE nCount <= Len( ::aListeners )
sk := ::aListeners[ nCount ]
hb_inetSendAll( sk, cMessage + CRLF )
// if there is an error, we remove the listener
IF hb_inetErrorCode( sk ) != 0
hb_ADel( ::aListeners, nCount, .T. )
ELSE
nCount++
ENDIF
ENDDO
hb_mutexUnlock( ::mtxBusy )
RETURN .T.
METHOD AcceptCon() CLASS HB_LogInetPort
LOCAL sk
hb_inetTimeout( ::skIn, 250 )
DO WHILE ! ::bTerminate
sk := hb_inetAccept( ::skIn )
// A gentle termination request, or an error
IF sk != NIL
hb_mutexLock( ::mtxBusy )
AAdd( ::aListeners, sk )
hb_mutexUnlock( ::mtxBusy )
ENDIF
ENDDO
RETURN .T.