readlog.c

   1 /*
   2  * SARG Squid Analysis Report Generator      http://sarg.sourceforge.net
   3  *                                                            1998, 2013
   4  *
   5  * SARG donations:
   6  *      please look at http://sarg.sourceforge.net/donations.php
   7  * Support:
   8  *     http://sourceforge.net/projects/sarg/forums/forum/363374
   9  * ---------------------------------------------------------------------
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  24  *
  25  */
  26
  27 #include "include/conf.h"
  28 #include "include/defs.h"
  29 #include "include/readlog.h"
  30 #include "include/filelist.h"
  31
  32 #define REPORT_EVERY_X_LINES 5000
  33 #define MAX_OPEN_USER_FILES 10
  34
  35 struct userfilestruct
  36 {
  37         struct userfilestruct *next;
  38         struct userinfostruct *user;
  39         FILE *file;
  40 };
  41
  42 enum ExcludeReasonEnum
  43 {
  44         //! User name too long.
  45         ER_UserNameTooLong,
  46         //! Squid logged an incomplete query received from the client.
  47         ER_IncompleteQuery,
  48         //! Log file turned over.
  49         ER_LogfileTurnedOver,
  50         //! Excluded by exclude_string from sarg.conf.
  51         ER_ExcludeString,
  52         //! Unknown input log file format.
  53         ER_UnknownFormat,
  54         //! Line to be ignored from the input log file.
  55         ER_FormatData,
  56         //! Entry not withing the requested date range.
  57         ER_OutOfDateRange,
  58         //! Ignored week day.
  59         ER_OutOfWDayRange,
  60         //! Ignored hour.
  61         ER_OutOfHourRange,
  62         //! User is not in the include_users list.
  63         ER_User,
  64         //! HTTP code excluded by exclude_code file.
  65         ER_HttpCode,
  66         //! Invalid character found in user name.
  67         ER_InvalidUserChar,
  68         //! No URL in entry.
  69         ER_NoUrl,
  70         //! Not the IP address requested with -a.
  71         ER_UntrackedIpAddr,
  72         //! URL excluded by -c or exclude_hosts.
  73         ER_Url,
  74         //! Entry time outside of requested hour range.
  75         ER_OutOfTimeRange,
  76         //! Not the URL requested by -s.
  77         ER_UntrackedUrl,
  78         //! No user in entry.
  79         ER_NoUser,
  80         //! Not the user requested by -u.
  81         ER_UntrackedUser,
  82         //! System user.
  83         ER_SysUser,
  84         //! User ignored by exclude_users
  85         ER_IgnoredUser,
  86
  87         ER_Last //!< last entry of the list
  88 };
  89
  90 numlist weekdays = { { 0, 1, 2, 3, 4, 5, 6 }, 7 };
  91 numlist hours = { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 }, 24 };
  92
  93 extern char *userfile;
  94 extern FileListObject AccessLog;
  95
  96 extern const struct ReadLogProcessStruct ReadSquidLog;
  97 extern const struct ReadLogProcessStruct ReadCommonLog;
  98 extern const struct ReadLogProcessStruct ReadSargLog;
  99 extern const struct ReadLogProcessStruct ReadExtLog;
 100
 101 //! The list of the supported log formats.
 102 static const struct ReadLogProcessStruct const *LogFormats[]=
 103 {
 104         &ReadSquidLog,
 105         &ReadCommonLog,
 106         &ReadSargLog,
 107         &ReadExtLog
 108 };
 109
 110 //! The path to the sarg log file.
 111 static char SargLogFile[4096]="";
 112 //! Handle to the sarg log file. NULL if not created.
 113 static FILE *fp_log=NULL;
 114 //! The number of records read from the input logs.
 115 static long int totregsl=0;
 116 //! The number of records kept.
 117 static long int totregsg=0;
 118 //! The number of records excluded.
 119 static long int totregsx=0;
 120 //! The beginning of a linked list of user's file.
 121 static struct userfilestruct *first_user_file=NULL;
 122 //! Count the number of occurence of each input log format.
 123 static unsigned long int format_count[sizeof(LogFormats)/sizeof(*LogFormats)];
 124 //! The minimum date found in the input logs.
 125 static int mindate=0;
 126 static int maxdate=0;
 127 //! Count the number of excluded records.
 128 static unsigned long int excluded_count[ER_Last];
 129
 130 /*!
 131 Read a single log file.
 132
 133 \param arq The log file name to read.
 134 */
 135 static void ReadOneLogFile(struct ReadLogDataStruct *Filter,const char *arq)
 136 {
 137         longline line;
 138         char *linebuf;
 139         char *str;
 140         char hora[30];
 141         char dia[128]="";
 142         char wuser[MAXLEN];
 143         char tmp3[MAXLEN]="";
 144         char download_url[MAXLEN];
 145         char smartfilter[MAXLEN];
 146         const char *url;
 147         const char *user;
 148         int current_format_idx;
 149         int OutputNonZero = REPORT_EVERY_X_LINES ;
 150         int idata=0;
 151         int x;
 152         int hmr;
 153         int nopen;
 154         int maxopenfiles=MAX_OPEN_USER_FILES;
 155         int successive_errors=0;
 156         int total_errors=0;
 157         unsigned long int recs1=0UL;
 158         unsigned long int recs2=0UL;
 159         FILE *fp_in=NULL;
 160         bool from_pipe;
 161         bool from_stdin;
 162         bool download_flag=false;
 163         bool id_is_ip;
 164         enum ReadLogReturnCodeEnum log_entry_status;
 165         struct stat logstat;
 166         struct getwordstruct gwarea;
 167         struct userfilestruct *prev_ufile;
 168         struct userinfostruct *uinfo;
 169         struct userfilestruct *ufile;
 170         struct userfilestruct *ufile1;
 171         struct ReadLogStruct log_entry;
 172         const struct ReadLogProcessStruct *current_format=NULL;
 173
 174         current_format=NULL;
 175         current_format_idx=-1;
 176         for (x=0 ; x<sizeof(LogFormats)/sizeof(*LogFormats) ; x++)
 177                 if (LogFormats[x]->NewFile)
 178                         LogFormats[x]->NewFile(arq);
 179
 180         if (arq[0]=='-' && arq[1]=='\0') {
 181                 if(debug)
 182                         debuga(_("Reading access log file: from stdin\n"));
 183                 fp_in=stdin;
 184                 from_stdin=true;
 185         } else {
 186                 if (Filter->DateRange[0]!='\0') {
 187                         if (stat(arq,&logstat)!=0) {
 188                                 debuga(_("Cannot get the modification time of input log file %s (%s). Processing it anyway\n"),arq,strerror(errno));
 189                         } else {
 190                                 struct tm *logtime=localtime(&logstat.st_mtime);
 191                                 if ((logtime->tm_year+1900)*10000+(logtime->tm_mon+1)*100+logtime->tm_mday<dfrom) {
 192                                         debuga(_("Ignoring old log file %s\n"),arq);
 193                                         return;
 194                                 }
 195                         }
 196                 }
 197                 fp_in=decomp(arq,&from_pipe);
 198                 if(fp_in==NULL) {
 199                         debuga(_("Cannot open input log file \"%s\": %s\n"),arq,strerror(errno));
 200                         exit(EXIT_FAILURE);
 201                 }
 202                 if(debug) debuga(_("Reading access log file: %s\n"),arq);
 203                 from_stdin=false;
 204         }
 205
 206         download_flag=false;
 207
 208         recs1=0UL;
 209         recs2=0UL;
 210
 211         // pre-read the file only if we have to show stats
 212         if (ShowReadStatistics && ShowReadPercent && !from_stdin && !from_pipe) {
 213                 size_t nread,i;
 214                 bool skipcr=false;
 215                 char tmp4[MAXLEN];
 216
 217                 while ((nread=fread(tmp4,1,sizeof(tmp4),fp_in))>0) {
 218                         for (i=0 ; i<nread ; i++)
 219                                 if (skipcr) {
 220                                         if (tmp4[i]!='\n' && tmp4[i]!='\r') {
 221                                                 skipcr=false;
 222                                         }
 223                                 } else {
 224                                         if (tmp4[i]=='\n' || tmp4[i]=='\r') {
 225                                                 skipcr=true;
 226                                                 recs1++;
 227                                         }
 228                                 }
 229                 }
 230                 rewind(fp_in);
 231                 printf(_("SARG: Records in file: %lu, reading: %3.2f%%"),recs1,(float) 0);
 232                 putchar('\r');
 233                 fflush( stdout ) ;
 234         }
 235
 236         if ((line=longline_create())==NULL) {
 237                 debuga(_("Not enough memory to read log file %s\n"),arq);
 238                 exit(EXIT_FAILURE);
 239         }
 240
 241         while ((linebuf=longline_read(fp_in,line))!=NULL) {
 242                 lines_read++;
 243
 244                 recs2++;
 245                 if (ShowReadStatistics && --OutputNonZero<=0) {
 246                         if (recs1>0) {
 247                                 double perc = recs2 * 100. / recs1 ;
 248                                 printf(_("SARG: Records in file: %lu, reading: %3.2lf%%"),recs2,perc);
 249                         } else {
 250                                 printf(_("SARG: Records in file: %lu"),recs2);
 251                         }
 252                         putchar('\r');
 253                         fflush (stdout);
 254                         OutputNonZero = REPORT_EVERY_X_LINES ;
 255                 }
 256
 257                 /*
 258                 The following checks are retained here as I don't know to
 259                 what format they apply. They date back to pre 2.4 versions.
 260                 */
 261                 //if(blen < 58) continue; //this test conflict with the reading of the sarg log header line
 262                 if(strstr(linebuf,"HTTP/0.0") != 0) {//recorded by squid when encountering an incomplete query
 263                         excluded_count[ER_IncompleteQuery]++;
 264                         continue;
 265                 }
 266                 if(strstr(linebuf,"logfile turned over") != 0) {//reported by newsyslog
 267                         excluded_count[ER_LogfileTurnedOver]++;
 268                         continue;
 269                 }
 270
 271                 // exclude_string
 272                 if(ExcludeString[0] != '\0') {
 273                         bool exstring=false;
 274                         getword_start(&gwarea,ExcludeString);
 275                         while(strchr(gwarea.current,':') != 0) {
 276                                 if (getword_multisep(val1,sizeof(val1),&gwarea,':')<0) {
 277                                         debuga(_("Maybe you have a broken record or garbage in your exclusion string\n"));
 278                                         exit(EXIT_FAILURE);
 279                                 }
 280                                 if((str=(char *) strstr(linebuf,val1)) != (char *) NULL ) {
 281                                         exstring=true;
 282                                         break;
 283                                 }
 284                         }
 285                         if(!exstring && (str=(char *) strstr(linebuf,gwarea.current)) != (char *) NULL )
 286                                 exstring=true;
 287                         if(exstring) {
 288                                 excluded_count[ER_ExcludeString]++;
 289                                 continue;
 290                         }
 291                 }
 292
 293                 totregsl++;
 294                 if(debugm)
 295                         printf("BUF=%s\n",linebuf);
 296
 297                 // process the line
 298                 log_entry_status=RLRC_Unknown;
 299                 memset(&log_entry,0,sizeof(log_entry));
 300                 if (current_format) {
 301                         log_entry_status=current_format->ReadEntry(linebuf,&log_entry);
 302                 }
 303
 304                 // find out what line format to use
 305                 if (log_entry_status==RLRC_Unknown) {
 306                         for (x=0 ; x<(int)(sizeof(LogFormats)/sizeof(*LogFormats)) ; x++) {
 307                                 if (LogFormats[x]==current_format) continue;
 308                                 memset(&log_entry,0,sizeof(log_entry));
 309                                 log_entry_status=LogFormats[x]->ReadEntry(linebuf,&log_entry);
 310                                 if (log_entry_status!=RLRC_Unknown) break;
 311                         }
 312                         if (x>=(int)(sizeof(LogFormats)/sizeof(*LogFormats))) {
 313                                 if (++successive_errors>NumLogSuccessiveErrors) {
 314                                         debuga(ngettext("%d consecutive error found in the input log file %s\n",
 315                                                                                                         "%d consecutive errors found in the input log file %s\n",successive_errors),successive_errors,arq);
 316                                         exit(EXIT_FAILURE);
 317                                 }
 318                                 if (NumLogTotalErrors>=0 && ++total_errors>NumLogTotalErrors) {
 319                                         debuga(ngettext("%d error found in the input log file (last in %s)\n",
 320                                                                                                         "%d errors found in the input log file (last in %s)\n",total_errors),total_errors,arq);
 321                                         exit(EXIT_FAILURE);
 322                                 }
 323                                 debuga(_("The following line read from %s could not be parsed and is ignored\n%s\n"),arq,linebuf);
 324                                 excluded_count[ER_UnknownFormat]++;
 325                                 continue;
 326                         }
 327                         current_format=LogFormats[x];
 328                         current_format_idx=x;
 329                         if (debugz) {
 330                                 /* TRANSLATORS: The argument is the log format name as translated by you. */
 331                                 debuga(_("Log format identified as \"%s\" for %s\n"),_(current_format->Name),arq);
 332                         }
 333                         successive_errors=0;
 334                 }
 335                 if (log_entry_status==RLRC_Ignore) {
 336                         excluded_count[ER_FormatData]++;
 337                         continue;
 338                 }
 339                 if (current_format_idx<0 || current_format==NULL) {
 340                         debuga(_("Sarg failed to determine the format of the input log file %s\n"),arq);
 341                         exit(EXIT_FAILURE);
 342                 }
 343                 if (log_entry_status==RLRC_InternalError) {
 344                         debuga(_("Internal error encountered while processing %s\nSee previous message to know the reason for that error.\n"),arq);
 345                         exit(EXIT_FAILURE);
 346                 }
 347                 format_count[current_format_idx]++;
 348
 349                 if (!fp_log && ParsedOutputLog[0] && current_format!=&ReadSargLog) {
 350                         if(access(ParsedOutputLog,R_OK) != 0) {
 351                                 my_mkdir(ParsedOutputLog);
 352                         }
 353                         if (snprintf(SargLogFile,sizeof(SargLogFile),"%s/sarg_temp.log",ParsedOutputLog)>=sizeof(SargLogFile)) {
 354                                 debuga(_("File name too long: %s/sarg_temp.log\n"),ParsedOutputLog);
 355                                 exit(EXIT_FAILURE);
 356                         }
 357                         if((fp_log=MY_FOPEN(SargLogFile,"w"))==NULL) {
 358                                 debuga(_("(log) Cannot open log file %s: %s\n"),SargLogFile,strerror(errno));
 359                                 exit(EXIT_FAILURE);
 360                         }
 361                         fputs("*** SARG Log ***\n",fp_log);
 362                 }
 363
 364                 if (log_entry.Ip==NULL) {
 365                         debuga(_("Unknown input log file format: no IP addresses\n"));
 366                         break;
 367                 }
 368                 if (log_entry.User==NULL) {
 369                         debuga(_("Unknown input log file format: no user\n"));
 370                         break;
 371                 }
 372                 if (log_entry.Url==NULL) {
 373                         debuga(_("Unknown input log file format: no URL\n"));
 374                         break;
 375                 }
 376
 377                 idata=builddia(log_entry.EntryTime.tm_mday,log_entry.EntryTime.tm_mon+1,log_entry.EntryTime.tm_year+1900);
 378                 if(debugm)
 379                         printf("DATE=%s IDATA=%d DFROM=%d DUNTIL=%d\n",Filter->DateRange,idata,dfrom,duntil);
 380
 381                 if(Filter->DateRange[0] != '\0'){
 382                         if(idata < dfrom || idata > duntil) {
 383                                 excluded_count[ER_OutOfDateRange]++;
 384                                 continue;
 385                         }
 386                 }
 387
 388                 // Record only hours usage which is required
 389                 if( bsearch( &( log_entry.EntryTime.tm_wday ), weekdays.list, weekdays.len, sizeof( int ), compar ) == NULL ) {
 390                         excluded_count[ER_OutOfWDayRange]++;
 391                         continue;
 392                 }
 393
 394                 if( bsearch( &( log_entry.EntryTime.tm_hour ), hours.list, hours.len, sizeof( int ), compar ) == NULL ) {
 395                         excluded_count[ER_OutOfHourRange]++;
 396                         continue;
 397                 }
 398
 399
 400                 if(strlen(log_entry.User) > MAX_USER_LEN) {
 401                         if (debugm) printf(_("User ID too long: %s\n"),log_entry.User);
 402                         excluded_count[ER_UserNameTooLong]++;
 403                         totregsx++;
 404                         continue;
 405                 }
 406
 407                 // include_users
 408                 if(IncludeUsers[0] != '\0') {
 409                         snprintf(val1,sizeof(val1),":%s:",log_entry.User);
 410                         if((str=(char *) strstr(IncludeUsers,val1)) == (char *) NULL ) {
 411                                 excluded_count[ER_User]++;
 412                                 continue;
 413                         }
 414                 }
 415
 416                 if(vercode(log_entry.HttpCode)) {
 417                         if (debugm) printf(_("Excluded code: %s\n"),log_entry.HttpCode);
 418                         excluded_count[ER_HttpCode]++;
 419                         totregsx++;
 420                         continue;
 421                 }
 422
 423                 if(testvaliduserchar(log_entry.User)) {
 424                         excluded_count[ER_InvalidUserChar]++;
 425                         continue;
 426                 }
 427
 428                 // replace any tab by a single space
 429                 for (str=log_entry.Url ; *str ; str++)
 430                         if (*str=='\t') *str=' ';
 431                 for (str=log_entry.HttpCode ; *str ; str++)
 432                         if (*str=='\t') *str=' ';
 433
 434                 if (current_format!=&ReadSargLog) {
 435                         /*
 436                         The full URL is not saved in sarg log. There is no point in testing the URL to detect
 437                         a downloaded file.
 438                         */
 439                         download_flag=is_download_suffix(log_entry.Url);
 440                         if (download_flag) {
 441                                 safe_strcpy(download_url,log_entry.Url,sizeof(download_url));
 442                         }
 443                 } else
 444                         download_flag=false;
 445
 446                 url=process_url(log_entry.Url,LongUrl);
 447                 if (!url || url[0] == '\0') {
 448                         excluded_count[ER_NoUrl]++;
 449                         continue;
 450                 }
 451
 452                 if(addr[0] != '\0'){
 453                         if(strcmp(addr,log_entry.Ip)!=0) {
 454                                 excluded_count[ER_UntrackedIpAddr]++;
 455                                 continue;
 456                         }
 457                 }
 458                 if(Filter->HostFilter) {
 459                         if(!vhexclude(url)) {
 460                                 if (debugm) printf(_("Excluded site: %s\n"),url);
 461                                 excluded_count[ER_Url]++;
 462                                 totregsx++;
 463                                 continue;
 464                         }
 465                 }
 466
 467                 if(Filter->StartTime >= 0 && Filter->EndTime >= 0) {
 468                         hmr=log_entry.EntryTime.tm_hour*100+log_entry.EntryTime.tm_min;
 469                         if(hmr < Filter->StartTime || hmr > Filter->EndTime) {
 470                                 excluded_count[ER_OutOfTimeRange]++;
 471                                 continue;
 472                         }
 473                 }
 474
 475                 if(site[0] != '\0'){
 476                         if(strstr(url,site)==0) {
 477                                 excluded_count[ER_UntrackedUrl]++;
 478                                 continue;
 479                         }
 480                 }
 481
 482                 if(UserIp) {
 483                         log_entry.User=log_entry.Ip;
 484                         id_is_ip=true;
 485                 } else {
 486                         id_is_ip=false;
 487                         if ((log_entry.User[0]=='\0') || (log_entry.User[1]=='\0' && (log_entry.User[0]=='-' || log_entry.User[0]==' '))) {
 488                                 if(RecordsWithoutUser == RECORDWITHOUTUSER_IP) {
 489                                         log_entry.User=log_entry.Ip;
 490                                         id_is_ip=true;
 491                                 }
 492                                 if(RecordsWithoutUser == RECORDWITHOUTUSER_IGNORE) {
 493                                         excluded_count[ER_NoUser]++;
 494                                         continue;
 495                                 }
 496                                 if(RecordsWithoutUser == RECORDWITHOUTUSER_EVERYBODY)
 497                                         log_entry.User="everybody";
 498                         } else {
 499                                 if(NtlmUserFormat == NTLMUSERFORMAT_USER) {
 500                                         if ((str=strchr(log_entry.User,'+'))!=NULL || (str=strchr(log_entry.User,'\\'))!=NULL || (str=strchr(log_entry.User,'_'))!=NULL) {
 501                                                 log_entry.User=str+1;
 502                                         }
 503                                 }
 504                         }
 505                 }
 506
 507                 if(us[0] != '\0'){
 508                         if(strcmp(log_entry.User,us)!=0) {
 509                                 excluded_count[ER_UntrackedUser]++;
 510                                 continue;
 511                         }
 512                 }
 513
 514                 if(Filter->SysUsers) {
 515                         snprintf(wuser,sizeof(wuser),":%s:",log_entry.User);
 516                         if(strstr(userfile, wuser) == 0) {
 517                                 excluded_count[ER_SysUser]++;
 518                                 continue;
 519                         }
 520                 }
 521
 522                 if(Filter->UserFilter) {
 523                         if(!vuexclude(log_entry.User)) {
 524                                 if (debugm) printf(_("Excluded user: %s\n"),log_entry.User);
 525                                 excluded_count[ER_IgnoredUser]++;
 526                                 totregsx++;
 527                                 continue;
 528                         }
 529                 }
 530
 531                 user=process_user(log_entry.User);
 532                 if (log_entry.User!=user) {
 533                         log_entry.User=user;
 534                         id_is_ip=false;
 535                 }
 536                 if (log_entry.User[0]=='\0' || (log_entry.User[1]=='\0' && (log_entry.User[0]=='-' ||
 537                                 log_entry.User[0]==' ' || log_entry.User[0]==':'))) {
 538                         excluded_count[ER_NoUser]++;
 539                         continue;
 540                 }
 541
 542                 if (log_entry.DataSize<0) log_entry.DataSize=0;
 543
 544                 if (log_entry.ElapsedTime<0) log_entry.ElapsedTime=0;
 545                 if (Filter->max_elapsed>0 && log_entry.ElapsedTime>Filter->max_elapsed) {
 546                         log_entry.ElapsedTime=0;
 547                 }
 548
 549                 if((str=(char *) strstr(linebuf, "[SmartFilter:")) != (char *) NULL ) {
 550                         fixendofline(str);
 551                         snprintf(smartfilter,sizeof(smartfilter),"\"%s\"",str+1);
 552                 } else strcpy(smartfilter,"\"\"");
 553
 554                 nopen=0;
 555                 prev_ufile=NULL;
 556                 for (ufile=first_user_file ; ufile && strcmp(log_entry.User,ufile->user->id)!=0 ; ufile=ufile->next) {
 557                         prev_ufile=ufile;
 558                         if (ufile->file) nopen++;
 559                 }
 560                 if (!ufile) {
 561                         ufile=malloc(sizeof(*ufile));
 562                         if (!ufile) {
 563                                 debuga(_("Not enough memory to store the user %s\n"),log_entry.User);
 564                                 exit(EXIT_FAILURE);
 565                         }
 566                         memset(ufile,0,sizeof(*ufile));
 567                         ufile->next=first_user_file;
 568                         first_user_file=ufile;
 569                         uinfo=userinfo_create(log_entry.User,(id_is_ip) ? NULL : log_entry.Ip);
 570                         ufile->user=uinfo;
 571                         nusers++;
 572                 } else {
 573                         if (prev_ufile) {
 574                                 prev_ufile->next=ufile->next;
 575                                 ufile->next=first_user_file;
 576                                 first_user_file=ufile;
 577                         }
 578                 }
 579 #ifdef ENABLE_DOUBLE_CHECK_DATA
 580                 ufile->user->nbytes+=log_entry.DataSize;
 581                 ufile->user->elap+=log_entry.ElapsedTime;
 582 #endif
 583
 584                 if (ufile->file==NULL) {
 585                         if (nopen>=maxopenfiles) {
 586                                 x=0;
 587                                 for (ufile1=first_user_file ; ufile1 ; ufile1=ufile1->next) {
 588                                         if (ufile1->file!=NULL) {
 589                                                 if (x>=maxopenfiles) {
 590                                                         if (fclose(ufile1->file)==EOF) {
 591                                                                 debuga(_("Write error in the log file of user %s: %s\n"),ufile1->user->id,strerror(errno));
 592                                                                 exit(EXIT_FAILURE);
 593                                                         }
 594                                                         ufile1->file=NULL;
 595                                                 }
 596                                                 x++;
 597                                         }
 598                                 }
 599                         }
 600                         if (snprintf (tmp3, sizeof(tmp3), "%s/%s.user_unsort", tmp, ufile->user->filename)>=sizeof(tmp3)) {
 601                                 debuga(_("Temporary user file name too long: %s/%s.user_unsort\n"), tmp, ufile->user->filename);
 602                                 exit(EXIT_FAILURE);
 603                         }
 604                         if ((ufile->file = MY_FOPEN (tmp3, "a")) == NULL) {
 605                                 debuga(_("(log) Cannot open temporary file %s: %s\n"), tmp3, strerror(errno));
 606                                 exit (1);
 607                         }
 608                 }
 609
 610                 strftime(dia, sizeof(dia), "%d/%m/%Y",&log_entry.EntryTime);
 611                 strftime(hora,sizeof(hora),"%H:%M:%S",&log_entry.EntryTime);
 612
 613                 if (fprintf(ufile->file, "%s\t%s\t%s\t%s\t%"PRIu64"\t%s\t%ld\t%s\n",dia,hora,
 614                                                                 log_entry.Ip,url,(uint64_t)log_entry.DataSize,
 615                                                                 log_entry.HttpCode,log_entry.ElapsedTime,smartfilter)<=0) {
 616                         debuga(_("Write error in the log file of user %s\n"),log_entry.User);
 617                         exit(EXIT_FAILURE);
 618                 }
 619                 records_kept++;
 620
 621                 if (fp_log && current_format!=&ReadSargLog) {
 622                         fprintf(fp_log, "%s\t%s\t%s\t%s\t%s\t%"PRIu64"\t%s\t%ld\t%s\n",dia,hora,
 623                                                         log_entry.User,log_entry.Ip,url,(uint64_t)log_entry.DataSize,
 624                                                         log_entry.HttpCode,log_entry.ElapsedTime,smartfilter);
 625                 }
 626
 627                 totregsg++;
 628
 629                 denied_write(&log_entry);
 630                 authfail_write(&log_entry);
 631                 if (download_flag) download_write(&log_entry,download_url);
 632
 633                 if (current_format!=&ReadSargLog) {
 634                         if (period.start.tm_year==0 || idata<mindate || compare_date(&period.start,&log_entry.EntryTime)>0){
 635                                 mindate=idata;
 636                                 memcpy(&period.start,&log_entry.EntryTime,sizeof(log_entry.EntryTime));
 637                         }
 638                         if (period.end.tm_year==0 || idata>maxdate || compare_date(&period.end,&log_entry.EntryTime)<0) {
 639                                 maxdate=idata;
 640                                 memcpy(&period.end,&log_entry.EntryTime,sizeof(log_entry.EntryTime));
 641                         }
 642                 }
 643
 644                 if(debugm){
 645                         printf("IP=\t%s\n",log_entry.Ip);
 646                         printf("USER=\t%s\n",log_entry.User);
 647                         printf("ELAP=\t%ld\n",log_entry.ElapsedTime);
 648                         printf("DATE=\t%s\n",dia);
 649                         printf("TIME=\t%s\n",hora);
 650                         //printf("FUNC=\t%s\n",fun);
 651                         printf("URL=\t%s\n",url);
 652                         printf("CODE=\t%s\n",log_entry.HttpCode);
 653                         printf("LEN=\t%"PRIu64"\n",(uint64_t)log_entry.DataSize);
 654                 }
 655         }
 656         longline_destroy(&line);
 657
 658         if (!from_stdin) {
 659                 if (from_pipe)
 660                         pclose(fp_in);
 661                 else {
 662                         fclose(fp_in);
 663                         if (ShowReadStatistics) {
 664                                 if (ShowReadPercent)
 665                                         printf(_("SARG: Records in file: %lu, reading: %3.2f%%\n"),recs2, (float) 100 );
 666                                 else
 667                                         printf(_("SARG: Records in file: %lu\n"),recs2);
 668                         }
 669                 }
 670         }
 671 }
 672
 673 /*!
 674  * Display a line with the excluded entries count.
 675  *
 676  * \param Explain A translated string explaining the exluded count.
 677  * \param Reason The reason number.
 678  */
 679 static void DisplayExcludeCount(const char *Explain,enum ExcludeReasonEnum Reason)
 680 {
 681         if (excluded_count[Reason]>0) {
 682                 debuga("   %s: %lu\n",Explain,excluded_count[Reason]);
 683         }
 684 }
 685
 686 /*!
 687 Read the log files.
 688
 689 \param Filter The filtering parameters for the file to load.
 690
 691 \retval 1 Records found.
 692 \retval 0 No record found.
 693 */
 694 int ReadLogFile(struct ReadLogDataStruct *Filter)
 695 {
 696         int x;
 697         int cstatus;
 698         struct userfilestruct *ufile;
 699         struct userfilestruct *ufile1;
 700         FileListIterator FIter;
 701         const char *file;
 702
 703         for (x=0 ; x<sizeof(format_count)/sizeof(*format_count) ; x++) format_count[x]=0;
 704         for (x=0 ; x<sizeof(excluded_count)/sizeof(*excluded_count) ; x++) excluded_count[x]=0;
 705         first_user_file=NULL;
 706
 707         if (!dataonly) {
 708                 denied_open();
 709                 authfail_open();
 710                 download_open();
 711         }
 712
 713         FIter=FileListIter_Open(AccessLog);
 714         while ((file=FileListIter_Next(FIter))!=NULL)
 715                 ReadOneLogFile(Filter,file);
 716         FileListIter_Close(FIter);
 717
 718         if(fp_log != NULL) {
 719                 char val2[40];
 720                 char val4[4096];//val4 must not be bigger than SargLogFile without fixing the strcpy below
 721
 722                 if (fclose(fp_log)==EOF) {
 723                         debuga(_("Write error in %s: %s\n"),SargLogFile,strerror(errno));
 724                         exit(EXIT_FAILURE);
 725                 }
 726                 strftime(val2,sizeof(val2),"%d%m%Y_%H%M",&period.start);
 727                 strftime(val1,sizeof(val1),"%d%m%Y_%H%M",&period.end);
 728                 if (snprintf(val4,sizeof(val4),"%s/sarg-%s-%s.log",ParsedOutputLog,val2,val1)>=sizeof(val4)) {
 729                         debuga(_("File name too long: %s/sarg-%s-%s.log\n"),ParsedOutputLog,val2,val1);
 730                         exit(EXIT_FAILURE);
 731                 }
 732                 if (rename(SargLogFile,val4)) {
 733                         debuga(_("failed to rename %s to %s - %s\n"),SargLogFile,val4,strerror(errno));
 734                 } else {
 735                         strcpy(SargLogFile,val4);
 736
 737                         if(strcmp(ParsedOutputLogCompress,"nocompress") != 0 && ParsedOutputLogCompress[0] != '\0') {
 738                                 /*
 739                                 No double quotes around ParsedOutputLogCompress because it may contain command line options. If double quotes are
 740                                 necessary around the command name, put them in the configuration file.
 741                                 */
 742                                 if (snprintf(val1,sizeof(val1),"%s \"%s\"",ParsedOutputLogCompress,SargLogFile)>=sizeof(val1)) {
 743                                         debuga(_("Command too long: %s \"%s\"\n"),ParsedOutputLogCompress,SargLogFile);
 744                                         exit(EXIT_FAILURE);
 745                                 }
 746                                 cstatus=system(val1);
 747                                 if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) {
 748                                         debuga(_("command return status %d\n"),WEXITSTATUS(cstatus));
 749                                         debuga(_("command: %s\n"),val1);
 750                                         exit(EXIT_FAILURE);
 751                                 }
 752                         }
 753                 }
 754                 if(debug)
 755                         debuga(_("Sarg parsed log saved as %s\n"),SargLogFile);
 756         }
 757
 758         denied_close();
 759         authfail_close();
 760         download_close();
 761
 762         for (ufile=first_user_file ; ufile ; ufile=ufile1) {
 763                 ufile1=ufile->next;
 764                 if (ufile->file!=NULL && fclose(ufile->file)==EOF) {
 765                         debuga(_("Write error in the log file of user %s: %s\n"),ufile->user->id,strerror(errno));
 766                         exit(EXIT_FAILURE);
 767                 }
 768                 free(ufile);
 769         }
 770
 771         if (debug) {
 772                 unsigned long int totalcount=0;
 773
 774                 debuga(_("   Records read: %ld, written: %ld, excluded: %ld\n"),totregsl,totregsg,totregsx);
 775
 776                 for (x=sizeof(excluded_count)/sizeof(*excluded_count)-1 ; x>=0 && excluded_count[x]>0 ; x--);
 777                 if (x>=0) {
 778                         debuga(_("Reasons for excluded entries:\n"));
 779                         DisplayExcludeCount(_("User name too long"),ER_UserNameTooLong);
 780                         DisplayExcludeCount(_("Squid logged an incomplete query received from the client"),ER_IncompleteQuery);
 781                         DisplayExcludeCount(_("Log file turned over"),ER_LogfileTurnedOver);
 782                         DisplayExcludeCount(_("Excluded by \"exclude_string\" in sarg.conf"),ER_ExcludeString);
 783                         DisplayExcludeCount(_("Unknown input log file format"),ER_UnknownFormat);
 784                         DisplayExcludeCount(_("Line ignored by the input log format"),ER_FormatData);
 785                         DisplayExcludeCount(_("Time outside the requested date range (-d)"),ER_OutOfDateRange);
 786                         DisplayExcludeCount(_("Ignored week day (\"weekdays\" parameter in sarg.conf)"),ER_OutOfWDayRange);
 787                         DisplayExcludeCount(_("Ignored hour (\"hours\" parameter in sarg.conf)"),ER_OutOfHourRange);
 788                         DisplayExcludeCount(_("User is not in the \"include_users\" list"),ER_User);
 789                         DisplayExcludeCount(_("HTTP code excluded by \"exclude_code\" file"),ER_HttpCode);
 790                         DisplayExcludeCount(_("Invalid character found in user name"),ER_InvalidUserChar);
 791                         DisplayExcludeCount(_("No URL in entry"),ER_NoUrl);
 792                         DisplayExcludeCount(_("Not the IP address requested with -a"),ER_UntrackedIpAddr);
 793                         DisplayExcludeCount(_("URL excluded by -c or \"exclude_hosts\""),ER_Url);
 794                         DisplayExcludeCount(_("Entry time outside of requested hour range (-t)"),ER_OutOfTimeRange);
 795                         DisplayExcludeCount(_("Not the URL requested by -s"),ER_UntrackedUrl);
 796                         DisplayExcludeCount(_("No user in entry"),ER_NoUser);
 797                         DisplayExcludeCount(_("Not the user requested by -u"),ER_UntrackedUser);
 798                         DisplayExcludeCount(_("System user as defined by \"password\" in sarg.conf"),ER_SysUser);
 799                         DisplayExcludeCount(_("User ignored by \"exclude_users\""),ER_IgnoredUser);
 800                 }
 801
 802                 for (x=0 ; x<sizeof(LogFormats)/sizeof(*LogFormats) ; x++) {
 803                         if (format_count[x]>0) {
 804                                 /* TRANSLATORS: It displays the number of lines found in the input log files
 805                                 * for each supported log format. The log format name is the %s and is a string
 806                                 * you translate somewhere else. */
 807                                 debuga(_("%s: %lu entries\n"),_(LogFormats[x]->Name),format_count[x]);
 808                                 totalcount+=format_count[x];
 809                         }
 810                 }
 811
 812                 if (totalcount==0 && totregsg)
 813                         debuga(_("Log with invalid format\n"));
 814         }
 815
 816         if (debugz)
 817                 debugaz(_("period=%s\n"),period.text);
 818
 819         return((totregsg!=0) ? 1 : 0);
 820 }