/*
 * SARG Squid Analysis Report Generator      http://sarg.sourceforge.net
 *                                                            1998, 2010
 *
 * 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"

int geramail(const char *dirname, int debug, const char *outdir, const char *email, const char *TempDir)
{
   FILE *fp_in, *fp_top1, *fp_top2, *fp_top3;
   long long int ttnbytes=0, ttnacc=0, tnacc=0;
   long long int tnbytes=0, ttnelap=0, tnelap=0;
   long long int nacc, nbytes, elap;
   long long int avgacc, avgelap;
   double perc=0.00;
   double perc2=0.00;
   int posicao=0;
   char olduser[MAX_USER_LEN], csort[MAXLEN];
   char wger[MAXLEN], top1[MAXLEN], top2[MAXLEN], top3[MAXLEN], user[MAX_USER_LEN];
   char strip1[MAXLEN], strip2[MAXLEN], strip3[MAXLEN], strip4[MAXLEN], strip5[MAXLEN], strip6[MAXLEN], strip7[MAXLEN];
   char buf[MAXLEN];
   int totuser=0;
   time_t t;
   struct tm *local;
   int cstatus;
   char warea[MAXLEN];
   struct getwordstruct gwarea;
   struct generalitemstruct item;

   snprintf(wger,sizeof(wger),"%s/sarg-general",dirname);
   if((fp_in=fopen(wger,"r"))==NULL) {
      debuga(_("(email) Cannot open file %s\n"),wger);
      exit(EXIT_FAILURE);
   }

   snprintf(top1,sizeof(top1),"%s/top",dirname);
   if((fp_top1=fopen(top1,"w"))==NULL) {
      debuga(_("(email) Cannot open file %s\n"),top1);
      exit(EXIT_FAILURE);
   }

   snprintf(top2,sizeof(top2),"%s/top.tmp",dirname);
   if((fp_top2=fopen(top2,"w"))==NULL) {
      debuga(_("(email) Cannot open file %s\n"),top2);
      exit(EXIT_FAILURE);
   }

   olduser[0]='\0';
   totuser=0;

   while(fgets(warea,sizeof(warea),fp_in)) {
      ger_read(warea,&item,wger);
      if(item.total) continue;
      if(strcmp(olduser,item.user) != 0)
      {
         totuser++;

         if (olduser[0] != '\0') {
#if defined(__FreeBSD__)
            fprintf(fp_top2,"%s\t%qu\t%qu\t%qu\n",olduser,tnbytes,tnacc,tnelap);
#elif defined(__alpha) || __ALPHA
            fprintf(fp_top2,"%s\t%ld\t%ld\t%ld\n",olduser,tnbytes,tnacc,tnelap);
#else
            fprintf(fp_top2,"%s\t%"PRIu64"\t%"PRIu64"\t%"PRIu64"\n",olduser,(uint64_t)tnbytes,(uint64_t)tnacc,(uint64_t)tnelap);
#endif
            ttnbytes+=tnbytes;
            ttnacc+=tnacc;
            ttnelap+=tnelap;
         }
         strcpy(olduser,item.user);
         tnbytes=0;
         tnacc=0;
         tnelap=0;
      }

      tnbytes+=item.nbytes;
      tnacc+=item.nacc;
      tnelap+=item.nelap;
   }

   if (olduser[0] != '\0') {
#if defined(__FreeBSD__)
      fprintf(fp_top2,"%s\t%qu\t%qu\t%qu\n",olduser,tnbytes,tnacc,tnelap);
#elif defined(__alpha) || __ALPHA
      fprintf(fp_top2,"%s\t%ld\t%ld\t%ld\n",olduser,tnbytes,tnacc,tnelap);
#else
      fprintf(fp_top2,"%s\t%"PRIu64"\t%"PRIu64"\t%"PRIu64"\n",olduser,(uint64_t)tnbytes,(uint64_t)tnacc,(uint64_t)tnelap);
#endif
      ttnbytes+=tnbytes;
      ttnacc+=tnacc;
      ttnelap+=tnelap;
   }

   fclose(fp_in);
   fclose(fp_top2);

   sprintf(csort,"sort -n -T \"%s\" -r -k 2,2 -o \"%s\" \"%s\"", TempDir, top1, top2);
   cstatus=system(csort);
   if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) {
      debuga(_("sort command return status %d\n"),WEXITSTATUS(cstatus));
      debuga(_("sort command: %s\n"),csort);
      exit(EXIT_FAILURE);
   }

   unlink(top2);

   if((fp_top1=fopen(top1,"a"))==NULL) {
      debuga(_("(email) Cannot open file %s\n"),top1);
      exit(EXIT_FAILURE);
   }
#if defined(__FreeBSD__)
   fprintf(fp_top1,"TOTAL\t%qu\t%qu\t%qu\n",ttnbytes,ttnacc,ttnelap);
#elif defined(__alpha) || __ALPHA
   fprintf(fp_top1,"TOTAL\t%ld\t%ld\t%ld\n",ttnbytes,ttnacc,ttnelap);
#else
   fprintf(fp_top1,"TOTAL\t%"PRIu64"\t%"PRIu64"\t%"PRIu64"\n",(uint64_t)ttnbytes,(uint64_t)ttnacc,(uint64_t)ttnelap);
#endif
   fclose(fp_top1);

   if((fp_top1=fopen(top1,"r"))==NULL) {
      debuga(_("(email) Cannot open file %s\n"),top1);
      exit(EXIT_FAILURE);
   }

   snprintf(top3,sizeof(top3),"%s/report",dirname);
   if((fp_top3=fopen(top3,"w"))==NULL) {
      debuga(_("(email) Cannot open file %s\n"),top3);
      exit(EXIT_FAILURE);
   }

   strcpy(strip1,_("Squid User Access Report"));
   strip_latin(strip1);
   fprintf(fp_top3,"%s\n",strip1);

   strcpy(strip1,_("Decreasing Access (bytes)"));
   strip_latin(strip1);
   fprintf(fp_top3,"%s\n",strip1);

   strcpy(strip1,_("Period"));
   strip_latin(strip1);
   fprintf(fp_top3,"%s %s\n\n",strip1,period.text);

   strcpy(strip1,_("NUM"));
   strip_latin(strip1);
   strcpy(strip2,_("USERID"));
   strip_latin(strip2);
   strcpy(strip3,_("CONNECT"));
   strip_latin(strip3);
   strcpy(strip4,_("BYTES"));
   strip_latin(strip4);
   strcpy(strip5,_("ELAPSED TIME"));
   strip_latin(strip5);
   strcpy(strip6,_("MILLISEC"));
   strip_latin(strip6);
   strcpy(strip7,_("TIME"));
   strip_latin(strip7);

   fprintf(fp_top3,"%-7s %-20s %-8s %-15s %%%-6s %-10s %-10s %%%-7s\n------- -------------------- -------- --------------- ------- ---------- ---------- -------\n",strip1,strip2,strip3,strip4,strip4,strip5,strip6,strip7);

   while(fgets(warea,sizeof(warea),fp_top1))
   {
      getword_start(&gwarea,warea);
      if (getword(user,sizeof(user),&gwarea,'\t')<0) {
         debuga(_("There is an invalid user ID in file %s\n"),top1);
         exit(EXIT_FAILURE);
      }
      if (getword_atoll(&nbytes,&gwarea,'\t')<0) {
         debuga(_("There is an invalid number of bytes in file %s\n"),top1);
         exit(EXIT_FAILURE);
      }
      if (getword_atoll(&nacc,&gwarea,'\t')<0) {
         debuga(_("There is an invalid number of access in file %s\n"),top1);
         exit(EXIT_FAILURE);
      }
      if (getword_atoll(&elap,&gwarea,'\t')<0) {
         debuga(_("There is an invalid elapsed time in file %s\n"),top1);
         exit(EXIT_FAILURE);
      }

      perc=(ttnbytes) ? nbytes * 100. / ttnbytes : 0;
      perc2=(ttnelap) ? elap * 100. / ttnelap : 0;

      posicao++;

      if(strcmp(user,"TOTAL") == 0){
         fputs("------- -------------------- -------- --------------- ------- ---------- ---------- -------\n",fp_top3);
#if defined(__FreeBSD__)
         fprintf(fp_top3,"%-7s %20s %8qu %15s %8s %9s %10qu\n",_("TOTAL")," ",ttnacc,fixnum(ttnbytes,1)," ",buildtime(ttnelap),ttnelap);
#elif defined(__alpha) || __ALPHA
         fprintf(fp_top3,"%-7s %20s %8ld %15s %8s %9s %10ld\n",_("TOTAL")," ",ttnacc,fixnum(ttnbytes,1)," ",buildtime(ttnelap),ttnelap);
#else
         fprintf(fp_top3,"%-7s %20s %8"PRIu64" %15s %8s %9s %10"PRIu64"\n",_("TOTAL")," ",(uint64_t)ttnacc,fixnum(ttnbytes,1)," ",buildtime(ttnelap),(uint64_t)ttnelap);
#endif
      } else {
#if defined(__FreeBSD__)
         fprintf(fp_top3,"%7d %20s %8lld %15s %3.2lf%% %10s %10qu %3.2lf%%\n",posicao,user,nacc,fixnum(nbytes,1),perc,buildtime(elap),elap,perc2);
#elif defined(__alpha) || __ALPHA
         fprintf(fp_top3,"%7d %20s %8lld %15s %3.2lf%% %10s %10ld %3.2lf%%\n",posicao,user,nacc,fixnum(nbytes,1),perc,buildtime(elap),elap,perc2);
#else
         fprintf(fp_top3,"%7d %20s %8"PRIu64" %15s %3.2lf%% %10s %10"PRIu64" %3.2lf%%\n",posicao,user,(uint64_t)nacc,fixnum(nbytes,1),perc,buildtime(elap),(uint64_t)elap,perc2);
#endif
      }
   }

   if (totuser>0) {
      tnbytes=(totuser) ? ttnbytes / totuser : 0;
      avgacc=ttnacc/totuser;
      avgelap=ttnelap/totuser;
   } else {
      tnbytes=0;
      avgacc=0;
      avgelap=0;
   }

   strcpy(strip1,_("AVERAGE"));
   strip_latin(strip1);
#if defined(__FreeBSD__)
   fprintf(fp_top3,"%-7s %20s %8qu %15s %8s %9s %10qu\n",strip1," ",avgacc,fixnum(tnbytes,1)," ",buildtime(avgelap),avgelap);
#elif defined(__alpha) || __ALPHA
   fprintf(fp_top3,"%-7s %20s %8ld %15s %8s %9s %10ld\n",strip1," ",avgacc,fixnum(tnbytes,1)," ",buildtime(avgelap),avgelap);
#else
   fprintf(fp_top3,"%-7s %20s %8"PRIu64" %15s %8s %9s %10"PRIu64"\n",strip1," ",(uint64_t)avgacc,fixnum(tnbytes,1)," ",buildtime(avgelap),(uint64_t)avgelap);
#endif

   fclose(fp_top1);
   unlink(top1);

   t = time(NULL);
   local = localtime(&t);
   fprintf(fp_top3, "\n%s\n", asctime(local));

   fclose(fp_top3);

   if(strcmp(email,"stdout") == 0) {
      if((fp_top3=fopen(top3,"r"))==NULL) {
         debuga(_("(email) Cannot open file %s\n"),top3);
         exit(EXIT_FAILURE);
      }

      while(fgets(buf,sizeof(buf),fp_top3)!=NULL)
         fputs(buf,stdout);
    } else {
      snprintf(buf,sizeof(buf),"\"%s\" -s \"SARG %s, %s\" \"%s\" <\"%s\"",MailUtility,_("Report"),asctime(local),email,top3);
      cstatus=system(buf);
      if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) {
         debuga(_("command return status %d\n"),WEXITSTATUS(cstatus));
         debuga(_("command: %s\n"),buf);
         exit(EXIT_FAILURE);
      }
    }

   if (snprintf(warea,sizeof(warea),"%s/sarg",TempDir)>=sizeof(warea)) {
      debuga(_("Temporary directory name too long: %s\n"),warea);
      exit(EXIT_FAILURE);
   }
   unlinkdir(warea,0);

   return (0);
}
