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47f1bbc8d7
3proxy/src/log.c
z3APA3A eb829b062b Major code refactoring 
- sockmapping rewritten from stratch to minimilse polling. poll() is now
only called if blocking is actually expected, splice pipes are now
polled if splice fails, buffers flushing is much more accurate.
- logging code moved to separate files
- signal masks added to client threads to prevent unneeded interruptions
- bandwidth limitation will not delay the thread after client or server
shutdown
2020-10-09 15:42:34 +03:00

355 lines
8.8 KiB
C
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/*
3APA3A simpliest proxy server
(c) 2002-2020 by Vladimir Dubrovin <3proxy@3proxy.ru>
please read License Agreement
*/
#include "proxy.h"
pthread_mutex_t log_mutex;
int havelog = 0;
struct clientparam logparam;
struct srvparam logsrv;
void dolog(struct clientparam * param, const unsigned char *s){
static int init = 0;
if(param)param->srv->logfunc(param, s);
else {
if(!init){
srvinit(&logsrv, &logparam);
init = 1;
}
logstdout(&logparam, s);
}
}
void clearstat(struct clientparam * param) {
#ifdef _WIN32
struct timeb tb;
ftime(&tb);
param->time_start = (time_t)tb.time;
param->msec_start = (unsigned)tb.millitm;
#else
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
param->time_start = (time_t)tv.tv_sec;
param->msec_start = (tv.tv_usec / 1000);
#endif
param->statscli64 = param->statssrv64 = param->nreads = param->nwrites =
param->nconnects = 0;
}
char months[12][4] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
int dobuf2(struct clientparam * param, unsigned char * buf, const unsigned char *s, const unsigned char * doublec, struct tm* tm, char * format){
int i, j;
int len;
time_t sec;
unsigned msec;
long timezone;
unsigned delay;
#ifdef _WIN32
struct timeb tb;
ftime(&tb);
sec = (time_t)tb.time;
msec = (unsigned)tb.millitm;
timezone = tm->tm_isdst*60 - tb.timezone;
#else
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
sec = (time_t)tv.tv_sec;
msec = tv.tv_usec / 1000;
#ifdef _SOLARIS
timezone = -altzone / 60;
#else
timezone = tm->tm_gmtoff / 60;
#endif
#endif
delay = param->time_start?((unsigned) ((sec - param->time_start))*1000 + msec) - param->msec_start : 0;
*buf = 0;
for(i=0, j=0; format[j] && i < 4040; j++){
if(format[j] == '%' && format[j+1]){
j++;
switch(format[j]){
case '%':
buf[i++] = '%';
break;
case 'y':
sprintf((char *)buf+i, "%.2d", tm->tm_year%100);
i+=2;
break;
case 'Y':
sprintf((char *)buf+i, "%.4d", tm->tm_year+1900);
i+=4;
break;
case 'm':
sprintf((char *)buf+i, "%.2d", tm->tm_mon+1);
i+=2;
break;
case 'o':
sprintf((char *)buf+i, "%s", months[tm->tm_mon]);
i+=3;
break;
case 'd':
sprintf((char *)buf+i, "%.2d", tm->tm_mday);
i+=2;
break;
case 'H':
sprintf((char *)buf+i, "%.2d", tm->tm_hour);
i+=2;
break;
case 'M':
sprintf((char *)buf+i, "%.2d", tm->tm_min);
i+=2;
break;
case 'S':
sprintf((char *)buf+i, "%.2d", tm->tm_sec);
i+=2;
break;
case 't':
sprintf((char *)buf+i, "%.10u", (unsigned)sec);
i+=10;
break;
case 'b':
i+=sprintf((char *)buf+i, "%u", delay?(unsigned)(param->statscli64 * 1000./delay):0);
break;
case 'B':
i+=sprintf((char *)buf+i, "%u", delay?(unsigned)(param->statssrv64 * 1000./delay):0);
break;
case 'D':
i+=sprintf((char *)buf+i, "%u", delay);
break;
case '.':
sprintf((char *)buf+i, "%.3u", msec);
i+=3;
break;
case 'z':
sprintf((char *)buf+i, "%+.2ld%.2u", timezone / 60, (unsigned)(timezone%60));
i+=5;
break;
case 'U':
if(param->username && *param->username){
for(len = 0; i< 4000 && param->username[len]; len++){
buf[i] = param->username[len];
if(param->srv->nonprintable && (buf[i] < 0x20 || strchr((char *)param->srv->nonprintable, buf[i]))) buf[i] = param->srv->replace;
if(doublec && strchr((char *)doublec, buf[i])) {
buf[i+1] = buf[i];
i++;
}
i++;
}
}
else {
buf[i++] = '-';
}
break;
case 'n':
len = param->hostname? (int)strlen((char *)param->hostname) : 0;
if (len > 0 && !strchr((char *)param->hostname, ':')) for(len = 0; param->hostname[len] && i < 256; len++, i++){
buf[i] = param->hostname[len];
if(param->srv->nonprintable && (buf[i] < 0x20 || strchr((char *)param->srv->nonprintable, buf[i]))) buf[i] = param->srv->replace;
if(doublec && strchr((char *)doublec, buf[i])) {
buf[i+1] = buf[i];
i++;
}
}
else {
buf[i++] = '[';
i += myinet_ntop(*SAFAMILY(&param->req), SAADDR(&param->req), (char *)buf + i, 64);
buf[i++] = ']';
}
break;
case 'N':
if(param->service < 15) {
len = (conf.stringtable)? (int)strlen((char *)conf.stringtable[SERVICES + param->service]) : 0;
if(len > 20) len = 20;
memcpy(buf+i, (len)?conf.stringtable[SERVICES + param->service]:(unsigned char*)"-", (len)?len:1);
i += (len)?len:1;
}
break;
case 'E':
sprintf((char *)buf+i, "%.05d", param->res);
i += 5;
break;
case 'T':
if(s){
for(len = 0; i<4000 && s[len]; len++){
buf[i] = s[len];
if(param->srv->nonprintable && (buf[i] < 0x20 || strchr((char *)param->srv->nonprintable, buf[i]))) buf[i] = param->srv->replace;
if(doublec && strchr((char *)doublec, buf[i])) {
buf[i+1] = buf[i];
i++;
}
i++;
}
}
break;
case 'e':
i += myinet_ntop(*SAFAMILY(&param->sinsl), SAADDR(&param->sinsl), (char *)buf + i, 64);
break;
case 'i':
i += myinet_ntop(*SAFAMILY(&param->sincl), SAADDR(&param->sincl), (char *)buf + i, 64);
break;
case 'C':
i += myinet_ntop(*SAFAMILY(&param->sincr), SAADDR(&param->sincr), (char *)buf + i, 64);
break;
case 'R':
i += myinet_ntop(*SAFAMILY(&param->sinsr), SAADDR(&param->sinsr), (char *)buf + i, 64);
break;
case 'Q':
i += myinet_ntop(*SAFAMILY(&param->req), SAADDR(&param->req), (char *)buf + i, 64);
break;
case 'p':
sprintf((char *)buf+i, "%hu", ntohs(*SAPORT(&param->srv->intsa)));
i += (int)strlen((char *)buf+i);
break;
case 'c':
sprintf((char *)buf+i, "%hu", ntohs(*SAPORT(&param->sincr)));
i += (int)strlen((char *)buf+i);
break;
case 'r':
sprintf((char *)buf+i, "%hu", ntohs(*SAPORT(&param->sinsr)));
i += (int)strlen((char *)buf+i);
break;
case 'q':
sprintf((char *)buf+i, "%hu", ntohs(*SAPORT(&param->req)));
i += (int)strlen((char *)buf+i);
break;
case 'L':
sprintf((char *)buf+i, "%"PRINTF_INT64_MODIFIER"u", param->cycles);
i += (int)strlen((char *)buf+i);
break;
case 'I':
sprintf((char *)buf+i, "%"PRINTF_INT64_MODIFIER"u", param->statssrv64);
i += (int)strlen((char *)buf+i);
break;
case 'O':
sprintf((char *)buf+i, "%"PRINTF_INT64_MODIFIER"u", param->statscli64);
i += (int)strlen((char *)buf+i);
break;
case 'h':
sprintf((char *)buf+i, "%d", param->redirected);
i += (int)strlen((char *)buf+i);
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
{
int k, pmin=0, pmax=0;
for (k = j; isnumber(format[k]); k++);
if(format[k] == '-' && isnumber(format[k+1])){
pmin = atoi(format + j) - 1;
k++;
pmax = atoi(format + k) -1;
for (; isnumber(format[k]); k++);
j = k;
}
if(!s || format[k]!='T') break;
for(k = 0, len = 0; s[len] && i < 4000; len++){
if(isspace(s[len])){
k++;
while(isspace(s[len+1]))len++;
if(k == pmin) continue;
}
if(k>=pmin && k<=pmax) {
buf[i] = s[len];
if(param->srv->nonprintable && (buf[i] < 0x20 || strchr((char *)param->srv->nonprintable, buf[i]))) buf[i] = param->srv->replace;
if(doublec && strchr((char *)doublec, buf[i])) {
buf[i+1] = buf[i];
i++;
}
i++;
}
}
break;
}
default:
buf[i++] = format[j];
}
}
else buf[i++] = format[j];
}
buf[i] = 0;
return i;
}
int dobuf(struct clientparam * param, unsigned char * buf, const unsigned char *s, const unsigned char * doublec){
struct tm* tm;
int i;
char * format;
time_t t;
time(&t);
if(!param) return 0;
if(param->trafcountfunc)(*param->trafcountfunc)(param);
format = param->srv->logformat?(char *)param->srv->logformat : DEFLOGFORMAT;
tm = (*format == 'G' || *format == 'g')?
gmtime(&t) : localtime(&t);
i = dobuf2(param, buf, s, doublec, tm, format + 1);
clearstat(param);
return i;
}
void lognone(struct clientparam * param, const unsigned char *s) {
if(param->trafcountfunc)(*param->trafcountfunc)(param);
clearstat(param);
}
void logstdout(struct clientparam * param, const unsigned char *s) {
FILE *log;
unsigned char tmpbuf[8192];
dobuf(param, tmpbuf, s, NULL);
log = param->srv->stdlog?param->srv->stdlog:conf.stdlog?conf.stdlog:stdout;
if(!param->nolog)if(fprintf(log, "%s\n", tmpbuf) < 0) {
perror("printf()");
};
if(log != conf.stdlog)fflush(log);
}
#ifndef _WIN32
void logsyslog(struct clientparam * param, const unsigned char *s) {
unsigned char tmpbuf[8192];
dobuf(param, tmpbuf, s, NULL);
if(!param->nolog)syslog(LOG_INFO, "%s", tmpbuf);
}
#endif
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