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/*
* Copyright (c) 2000,2003 Silicon Graphics, Inc. All Rights Reserved.
*
* 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.
*/
/*
* Uses the same regular expression logic as pmdaweblog, but extracted
* here so new patterns and access logs can be tested
*
* Usage: check_match configfile pat_name [input]
* configfile regex spec file as used by pmdaweblog
* pat_name use only this names regex from configfile
* input test input to try and match, defaults to stdin
*/
#include <ctype.h>
#include <pmapi.h>
#if defined(HAVE_REGEX_H)
#include <regex.h>
#endif
#include <sys/types.h>
int
main(int argc, char *argv[])
{
FILE *fc;
char buf[1024];
char *p;
char *q;
#ifdef HAVE_REGEX
char *comp = NULL;
char sub0[1024];
char sub1[1024];
char sub2[1024];
char sub3[1024];
#endif
int lno = 0;
int regex_posix = 0;
int cern_format = 0;
int common_extended_format = 0;
int squid_format = 0;
int methodpos = 1, c_statuspos = 2, sizepos = 2, s_statuspos = 2;
long client_cache_hits, proxy_cache_hits, remote_fetches;
double proxy_bytes, remote_bytes;
#if (defined HAVE_REGEXEC) && (defined HAVE_REGCOMP)
regex_t re = {0};
regmatch_t pmatch[5];
size_t nmatch = 5;
#endif
if (argc < 3 || argc > 4) {
fprintf(stderr, "Usage: check_match configfile pat_name [input]\n");
exit(1);
}
if ((fc = fopen(argv[1], "r")) == NULL) {
fprintf(stderr, "check_match: cannot open configfile \"%s\": %s\n", argv[1], osstrerror());
exit(1);
}
if (argc == 4) {
if (freopen(argv[3], "r", stdin) == NULL) {
fprintf(stderr, "check_match: cannot open input \"%s\": %s\n", argv[3], osstrerror());
exit(1);
}
}
while (fgets(buf, sizeof(buf), fc) != NULL) {
lno++;
if (strncmp(buf, "regex", 5) != 0) continue;
if (strncmp(buf, "regex_posix", 11) == 0) {
regex_posix = 1;
p = &buf[11];
}
else {
regex_posix = 0;
p = &buf[5];
}
while (*p && isspace((int)*p)) p++;
if (*p == '\0') continue;
q = p++;
while (*p && !isspace((int)*p)) p++;
if (*p == '\0') continue;
*p = '\0';
cern_format = squid_format = common_extended_format = 0;
if (strcmp(q, argv[2]) == 0) {
if(regex_posix) {
q = ++p;
while (*p && !isspace((int)*p)) p++;
if (*p == '\0') continue;
*p = '\0';
fprintf(stderr, "args are (%s)\n", q);
if(strncmp(q, "method,size", 11) == 0) {
cern_format = 1;
methodpos = 1;
sizepos = 2;
}
else if(strncmp(q, "size,method", 11) == 0) {
methodpos = 2;
sizepos = 1;
}
else {
char *str;
int pos;
pos = 1;
str=q;
do {
switch(str[0]) {
case '1':
methodpos = pos++;
break;
case '2':
sizepos = pos++;
break;
case '3':
c_statuspos = pos++;
break;
case '4':
s_statuspos = pos++;
break;
case '-':
methodpos = 1;
sizepos = 2;
str[0] = '\0';
break;
case ',':
case '\0':
break;
default:
fprintf(stderr,
"could figure out arg order params (%s)\n",
str);
exit(1);
}
} while ( *str++ );
if(c_statuspos > 0 && s_statuspos > 0) {
if(strcmp(argv[2], "SQUID") == 0)
squid_format = 1;
else
common_extended_format = 1;
} else
cern_format = 1;
}
fprintf(stderr, "cern: %d, cef: %d, squid: %d, MP: %d, SP: %d, CSP: %d, SSP: %d\n",
cern_format, common_extended_format, squid_format,
methodpos, sizepos, c_statuspos, s_statuspos);
}
q = ++p;
while (*p && *p != '\n') p++;
while (p >= q && isspace((int)*p)) p--;
p[1] = '\0';
if(regex_posix) {
#ifdef HAVE_REGCOMP
fprintf(stderr, "%s[%d]: regex_posix: %s\n", argv[1], lno, q);
fclose(fc);
if(regcomp(&re, q, REG_EXTENDED) != 0 ) {
fprintf(stderr, "Error: bad regular expression\n");
exit(1);
}
#else
fprintf(stderr, "%s[%d]: no support for POSIX regexp\n",
argv[1], lno);
#endif
}
else {
#ifdef HAVE_REGCMP
if(strcmp(argv[2], "CERN") == 0)
cern_format = 1;
else if (strcmp(argv[2], "NS_PROXY") == 0)
common_extended_format = 1;
else if (strcmp(argv[2], "SQUID") == 0)
squid_format = 1;
fprintf(stderr, "%s[%d]: regex: %s\n", argv[1], lno, q);
fclose(fc);
comp = regcmp(q, NULL);
if (comp == NULL) {
fprintf(stderr, "Error: bad regular expression\n");
exit(1);
}
#else
fprintf(stderr, "%s[%d]: regcmp is not available\n",
argv[1], lno);
#endif
}
break;
}
}
lno = 0;
remote_fetches = proxy_cache_hits = client_cache_hits = 0;
remote_bytes = proxy_bytes = 0.0;
while (fgets(buf, sizeof(buf), stdin) != NULL) {
lno++;
if(regex_posix) {
#ifdef HAVE_REGEXEC
if(regexec(&re, buf, nmatch, pmatch, 0) == 0) {
buf[pmatch[methodpos].rm_eo] = '\0';
buf[pmatch[sizepos].rm_eo] = '\0';
if(common_extended_format || squid_format) {
buf[pmatch[c_statuspos].rm_eo] = '\0';
buf[pmatch[s_statuspos].rm_eo] = '\0';
}
if(common_extended_format) {
fprintf(stderr,"[%d] M: %s, S: %s, CS: %s, SS: %s\n",
lno,
&buf[pmatch[methodpos].rm_so],
&buf[pmatch[sizepos].rm_so],
&buf[pmatch[c_statuspos].rm_so],
&buf[pmatch[s_statuspos].rm_so]);
if(strcmp(&buf[pmatch[c_statuspos].rm_so], "200") == 0 &&
strcmp(&buf[pmatch[s_statuspos].rm_so], "200") == 0) {
fprintf(stderr,"\tREMOTE fetch of %.0f bytes\n",
atof(&buf[pmatch[sizepos].rm_so]));
remote_fetches++;
remote_bytes += atof(&buf[pmatch[sizepos].rm_so]);
}
if(strcmp(&buf[pmatch[c_statuspos].rm_so], "200") == 0 &&
(strcmp(&buf[pmatch[s_statuspos].rm_so], "304") == 0 ||
strcmp(&buf[pmatch[s_statuspos].rm_so], "-") == 0)) {
fprintf(stderr,"\tCACHE return of %.0f bytes\n",
atof(&buf[pmatch[sizepos].rm_so]));
proxy_cache_hits++;
proxy_bytes += atof(&buf[pmatch[sizepos].rm_so]);
}
if(strcmp(&buf[pmatch[c_statuspos].rm_so], "304") == 0 &&
(strcmp(&buf[pmatch[s_statuspos].rm_so], "304") == 0 ||
strcmp(&buf[pmatch[s_statuspos].rm_so], "-") == 0)) {
fprintf(stderr,"\tCLIENT hit of %.0f bytes\n",
atof(&buf[pmatch[sizepos].rm_so]));
client_cache_hits++;
}
} else if(squid_format) {
fprintf(stderr,"[%d] M: %s, S: %s, CS: %s, SS: %s\n",
lno,
&buf[pmatch[methodpos].rm_so],
&buf[pmatch[sizepos].rm_so],
&buf[pmatch[c_statuspos].rm_so],
&buf[pmatch[s_statuspos].rm_so]);
if(strcmp(&buf[pmatch[c_statuspos].rm_so], "200") == 0 &&
(strstr(&buf[pmatch[s_statuspos].rm_so],
"_MISS")!=NULL ||
strstr(&buf[pmatch[s_statuspos].rm_so],
"_CLIENT_REFRESH")!=NULL ||
strstr(&buf[pmatch[s_statuspos].rm_so],
"_SWAPFAIL")!=NULL)){
fprintf(stderr,"\tREMOTE fetch of %.0f bytes (code: %s, Squid result code: %s)\n",
atof(&buf[pmatch[sizepos].rm_so]),
&buf[pmatch[c_statuspos].rm_so], &buf[pmatch[s_statuspos].rm_so]);
remote_fetches++;
remote_bytes += atof(&buf[pmatch[sizepos].rm_so]);
}
if(strcmp(&buf[pmatch[c_statuspos].rm_so], "200") == 0 &&
strstr(&buf[pmatch[s_statuspos].rm_so], "_HIT") != NULL) {
fprintf(stderr,"\tCACHE return of %.0f bytes (code: %s, Squid result code: %s)\n",
atof(&buf[pmatch[sizepos].rm_so]),
&buf[pmatch[c_statuspos].rm_so], &buf[pmatch[s_statuspos].rm_so]);
proxy_cache_hits++;
proxy_bytes += atof(&buf[pmatch[sizepos].rm_so]);
}
if(strcmp(&buf[pmatch[c_statuspos].rm_so], "304") == 0 &&
strstr(&buf[pmatch[s_statuspos].rm_so], "_HIT") != NULL) {
fprintf(stderr,"\tCLIENT hit of %.0f bytes (code: %s, Squid result code: %s)\n",
atof(&buf[pmatch[sizepos].rm_so]),
&buf[pmatch[c_statuspos].rm_so], &buf[pmatch[s_statuspos].rm_so]);
client_cache_hits++;
}
} else {
fprintf(stderr, "[%d] match: method=\"%s\" size=\"%s\"\n", lno,
&buf[pmatch[methodpos].rm_so], &buf[pmatch[sizepos].rm_so]);
}
}
else
fprintf(stderr, "[%d] no match: %s\n", lno, buf);
#else
fprintf(stderr, "[%d] - no regexec()\n", lno);
#endif
}
else {
#ifdef HAVE_REGEX
if (regex(comp, buf, sub0, sub1, sub2, sub3) != NULL) {
if(common_extended_format) {
fprintf(stderr,"[%d] M: %s, S: %s, CS: %s, SS: %s\n",
lno, sub0, sub1, sub2, sub3);
if(strcmp(sub2, "200") == 0 &&
strcmp(sub3, "200") == 0 ) {
fprintf(stderr,"\tREMOTE fetch of %s bytes\n", sub1);
remote_fetches++;
remote_bytes += atof(sub1);
}
if(strcmp(sub2, "200") == 0 &&
(strcmp(sub3, "304") == 0 || strcmp(sub3, "-") == 0)) {
fprintf(stderr,"\tCACHE return of %s bytes\n", sub1);
proxy_cache_hits++;
proxy_bytes += atof(sub1);
}
if(strcmp(sub2, "304") == 0 &&
(strcmp(sub3, "304") == 0 || strcmp(sub3, "-") == 0)) {
fprintf(stderr,"\tCLIENT hit of %s bytes\n", sub1);
client_cache_hits++;
}
} else if(squid_format) {
fprintf(stderr,"[%d] M: %s, S: %s, CS: %s, SS: %s\n",
lno, sub0, sub1, sub2, sub3);
if(strcmp(sub2, "200") == 0 &&
(strstr(sub3, "_MISS") != NULL ||
strstr(sub3, "_CLIENT_REFRESH")!= NULL ||
strstr(sub3, "_SWAPFAIL") != NULL)){
fprintf(stderr,"\tREMOTE fetch of %.0f bytes (code: %s, Squid result code: %s)\n",
atof(sub1),
sub2, sub3);
remote_fetches++;
remote_bytes += atof(sub1);
}
if(strcmp(sub2, "200") == 0 &&
strstr(sub3, "_HIT") != NULL) {
fprintf(stderr,"\tCACHE return of %.0f bytes (code: %s, Squid result code: %s)\n",
atof(sub1),
sub2, sub3);
proxy_cache_hits++;
proxy_bytes += atof(sub1);
}
if(strcmp(sub2, "304") == 0 &&
strstr(sub3, "_HIT") != NULL) {
fprintf(stderr,"\tCLIENT hit of %.0f bytes (code: %s, Squid result code: %s)\n",
atof(sub3),
sub2, sub3);
client_cache_hits++;
}
} else {
fprintf(stderr, "[%d] match: method=\"%s\" size=\"%s\"\n", lno,
sub0, sub1);
}
}
else
fprintf(stderr, "[%d] no match: %s\n", lno, buf);
#else
fprintf(stderr, "[%d] - no regex()\n", lno);
#endif
}
}
if(common_extended_format || squid_format) {
fprintf(stderr,"Proxy Cache Summary Report\n\n");
fprintf(stderr,
"# requests %ld\n# client cache hits %ld\n# cache hits %ld\n# remote fetches %ld\n",
(client_cache_hits + proxy_cache_hits + remote_fetches),
client_cache_hits, proxy_cache_hits, remote_fetches);
fprintf(stderr,
"\nTotal Mbytes %f bytes\nFrom proxy cache %f Mbytes\nFrom remote sites %f Mbytes\n\n",
(proxy_bytes + remote_bytes)/1000000.0,
proxy_bytes/1000000.0, remote_bytes/1000000.0);
fprintf(stderr,
"Client Cache %% hit rate: %.2f\n",
100.0*(float)client_cache_hits/(float)(client_cache_hits + proxy_cache_hits + remote_fetches));
fprintf(stderr,
"Proxy Cache %% hit rate: %.2f\n",
100.0*(float)proxy_cache_hits/(float)(client_cache_hits + proxy_cache_hits + remote_fetches));
fprintf(stderr,
"Local Cache %% hit rate: %.2f\n",
100.0*(float)(client_cache_hits + proxy_cache_hits)/
(float)(client_cache_hits + proxy_cache_hits + remote_fetches));
fprintf(stderr,
"\nAverage fetch size: Proxy -> Client: %.2f Kb\n",
proxy_bytes/proxy_cache_hits/1000.0);
fprintf(stderr,
"Average fetch size: Remote -> Client : %.2f Kb\n",
remote_bytes/remote_fetches/1000.0);
fprintf(stderr,"\nClient Cache bandwidth reduction effectiveness: UNKNOWN\n");
fprintf(stderr,
"Proxy Cache bandwidth reduction effectiveness: %f%%\n",
100.0*proxy_bytes/(proxy_bytes + remote_bytes));
}
exit(0);
}
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