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/*
* SARG Squid Analysis Report Generator http://sarg.sourceforge.net
* 1998, 2015
*
* SARG donations:
* please look at http://sarg.sourceforge.net/donations.php
* Support:
* http://sourceforge.net/projects/sarg/forums/forum/363374
* ---------------------------------------------------------------------
*
* 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 of the License, 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
*/
#include "include/conf.h"
#include "include/defs.h"
#include "include/readlog.h"
//! \c True if the current log is known to be a sarg parsed log.
static bool InSargLog=false;
//! \c True if the file name is invalid.
static bool InvalidFileName=true;
//! The last period extracted from the log file name.
static struct periodstruct SargPeriod;
/*!
A new file is being read. The name of the file is \a FileName.
*/
static void Sarg_NewFile(const char *FileName)
{
InSargLog=false;
InvalidFileName=(getperiod_fromsarglog(FileName,&SargPeriod)<0);
}
/*!
Read one entry from a sarg generated log.
\param Line One line from the input log file.
\param Entry Where to store the information parsed from the line.
\retval RLRC_NoError One valid entry is parsed.
\retval RLRC_Unknown The line is invalid.
\retval RLRC_InternalError An internal error was encountered.
*/
static enum ReadLogReturnCodeEnum Sarg_ReadEntry(char *Line,struct ReadLogStruct *Entry)
{
const char *Begin;
int IpLen;
int HttpCodeLen;
int UrlLen;
int UserLen;
int Day;
int Month;
int Year;
int Hour;
int Minute;
int Second;
char *Ip;
char *User;
if (strncmp(Line,"*** SARG Log ***",16)==0) {
if (InvalidFileName) {
debuga(__FILE__,__LINE__,_("The name of the file is invalid for a sarg log\n"));
exit(EXIT_FAILURE);
}
getperiod_merge(&period,&SargPeriod);
InSargLog=true;
return(RLRC_Ignore);
}
if (!InSargLog) return(RLRC_Unknown);
// get the date
Day=0;
while (isdigit(*Line)) Day=Day*10+(*Line++-'0');
if (*Line!='/' || Day<1 || Day>31) return(RLRC_Unknown);
++Line;
Month=0;
while (isdigit(*Line)) Month=Month*10+(*Line++-'0');
if (*Line!='/') return(RLRC_Unknown);
if (Month<=0 || Month>12) return(RLRC_Unknown);
++Line;
Year=0;
while (isdigit(*Line)) Year=Year*10+(*Line++-'0');
if (*Line!='\t' || Year<1900 || Year>2200) return(RLRC_Unknown);
// get the time
++Line;
Hour=0;
while (isdigit(*Line)) Hour=Hour*10+(*Line++-'0');
if (*Line!=':' || Hour>=24) return(RLRC_Unknown);
++Line;
Minute=0;
while (isdigit(*Line)) Minute=Minute*10+(*Line++-'0');
if (*Line!=':' || Minute>=60) return(RLRC_Unknown);
++Line;
Second=0;
while (isdigit(*Line)) Second=Second*10+(*Line++-'0');
if (*Line!='\t' || Second>60) return(RLRC_Unknown); //second can be 60 due to a leap second
Entry->EntryTime.tm_year=Year-1900;
Entry->EntryTime.tm_mon=Month-1;
Entry->EntryTime.tm_mday=Day;
Entry->EntryTime.tm_hour=Hour;
Entry->EntryTime.tm_min=Minute;
Entry->EntryTime.tm_sec=Second;
Entry->EntryTime.tm_isdst=-1;
// the ID of the user
Entry->User=User=++Line;
for (UserLen=0 ; *Line && *Line!='\t' ; UserLen++) Line++;
if (*Line!='\t' || UserLen==0) return(RLRC_Unknown);
// get IP address
Entry->Ip=Ip=++Line;
for (IpLen=0 ; *Line && *Line!='\t' ; IpLen++) Line++;
if (*Line!='\t' || IpLen==0) return(RLRC_Unknown);
// get the URL
Entry->Url=++Line;
for (UrlLen=0 ; *Line && *Line!='\t' ; UrlLen++) Line++;
if (*Line!='\t' || UrlLen==0) return(RLRC_Unknown);
// get the number of transfered bytes.
Begin=++Line;
Entry->DataSize=0LL;
while (isdigit(*Line)) Entry->DataSize=Entry->DataSize*10+(*Line++-'0');
if (*Line!='\t' || Begin==Line) return(RLRC_Unknown);
// get the HTTP code.
Entry->HttpCode=++Line;
for (HttpCodeLen=0 ; *Line && *Line!='\t' ; HttpCodeLen++) Line++;
if (*Line!='\t' || HttpCodeLen==0) return(RLRC_Unknown);
// get the elapsed time.
Begin=++Line;
Entry->ElapsedTime=0L;
while (isdigit(*Line)) Entry->ElapsedTime=Entry->ElapsedTime*10+(*Line++-'0');
if (*Line!='\t' || Line==Begin) return(RLRC_Unknown);
// get the smart filter
//! \bug Smart filter ignored from sarg log format.
// check the entry time
if (mktime(&Entry->EntryTime)==-1) {
debuga(__FILE__,__LINE__,_("Invalid date or time found in the common log file\n"));
return(RLRC_InternalError);
}
// it is safe to alter the line buffer now that we are returning a valid entry
Ip[IpLen]='\0';
Entry->HttpCode[HttpCodeLen]='\0';
Entry->Url[UrlLen]='\0';
User[UserLen]='\0';
return(RLRC_NoError);
}
//! \brief Object to read a standard squid log format.
const struct ReadLogProcessStruct ReadSargLog=
{
/* TRANSLATORS: This is the name of the log format displayed when this format is detected in an input log file. */
N_("sarg log format"),
Sarg_NewFile,
Sarg_ReadEntry
};
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