23d0e32411
* src/rtl/radiogrp.prg
% deleted '#include "common.ch"'
* contrib/hbtip/sessid.prg
! playing it safe: using simple IF/ENDIF instead of HB_DEFAULT()
on a multi-type variable
; NOTE: One more implication of HB_DEFAULT vs. DEFAULT ... TO ...
is that the default expression is always evaluated with
the former.
147 lines
4.9 KiB
Plaintext
147 lines
4.9 KiB
Plaintext
/*
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* $Id$
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*/
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/*
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* xHarbour Project source code:
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* Functions to create session id and some utils
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*
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* Copyright 2008 Lorenzo Fiorini <lorenzo.fiorini@gmail.com>
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*
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* code from:
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* TIP Class oriented Internet protocol library
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*
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* Copyright 2003 Giancarlo Niccolai <gian@niccolai.ws>
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* www - http://harbour-project.org
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*
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* CGI Session Manager Class
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*
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* Copyright 2003-2006 Francesco Saverio Giudice <info / at / fsgiudice / dot / com>
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* www - http://www.xharbour.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* 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 software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#define SID_LENGTH 25
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#define BASE_KEY_STRING "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
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#define CRC_KEY_STRING "Ak3yStR1Ng" // Max Length must be 10 chars
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FUNCTION TIP_GENERATESID( cCRCKey )
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LOCAL cSID, nSIDCRC, cSIDCRC, n, cTemp
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LOCAL nLenSID := SID_LENGTH
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LOCAL cBaseKeys := BASE_KEY_STRING
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LOCAL nLenKeys := Len( cBaseKeys )
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LOCAL cRet
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LOCAL nRand, nKey := 0
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hb_default( @cCRCKey, CRC_KEY_STRING )
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cCRCKey := Left( cCRCKey, 10 ) // Max Lenght must to be of 10 chars
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/* Let's generate the sequence */
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cSID := Space( nLenSID )
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FOR n := 1 TO nLenSID
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nRand := hb_RandomInt( 1, nLenKeys )
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cSID := Stuff( cSID, n, 1, SubStr( cBaseKeys, nRand, 1 ) )
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nKey += nRand
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NEXT
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nSIDCRC := nKey * 51 // Max Value is 99603 a 5 chars number
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cTemp := StrZero( nSIDCRC, 5 )
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cSIDCRC := ""
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FOR n := 1 TO Len( cTemp )
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cSIDCRC += SubStr( cCRCKey, Val( SubStr( cTemp, n, 1 ) ) + 1, 1 )
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NEXT
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cRet := cSID + cSIDCRC
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RETURN cRet
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FUNCTION TIP_CHECKSID( cSID, cCRCKey )
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LOCAL nSIDCRC, cSIDCRC, n, cTemp
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LOCAL nLenSID := SID_LENGTH
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LOCAL cBaseKeys := BASE_KEY_STRING
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LOCAL nRand, nKey := 0
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hb_default( @cCRCKey, CRC_KEY_STRING )
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cCRCKey := Left( cCRCKey, 10 ) // Max Lenght must to be of 10 chars
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/* Calculate the key */
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FOR n := 1 TO nLenSID
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nRand := At( SubStr( cSID, n, 1), cBaseKeys )
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nKey += nRand
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NEXT
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// Recalculate the CRC
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nSIDCRC := nKey * 51 // Max Value is 99603. a 5 chars number
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cTemp := StrZero( nSIDCRC, 5 )
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cSIDCRC := ""
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FOR n := 1 TO Len( cTemp )
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cSIDCRC += SubStr( cCRCKey, Val( SubStr( cTemp, n, 1 ) ) + 1, 1 )
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NEXT
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RETURN Right( cSID, 5 ) == cSIDCRC
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FUNCTION TIP_DATETOGMT( dDate, cTime )
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LOCAL cStr
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LOCAL cOldDateFormat := Set( _SET_DATEFORMAT, "dd-mm-yy" )
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LOCAL nDay, nMonth, nYear, nDoW
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LOCAL aDays := { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" }
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LOCAL aMonths := { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }
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hb_default( @dDate, Date() )
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hb_default( @cTime, Time() )
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nDay := Day( dDate )
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nMonth := Month( dDate )
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nYear := Year( dDate)
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nDoW := Dow( dDate )
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cStr := aDays[ nDow ] + ", " + StrZero( nDay, 2 ) + "-" + aMonths[ nMonth ] + "-" + ;
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Right( StrZero( nYear, 4 ), 2 ) + " " + cTime + " GMT"
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Set( _SET_DATEFORMAT, cOldDateFormat )
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RETURN cStr
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