useragent.c
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上传日期:2007-01-04
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- /*
- * $Id: useragent.c,v 1.16 1999/01/29 18:31:18 wessels Exp $
- *
- * DEBUG: section 40 User-Agent logging
- * AUTHOR: Joe Ramey <ramey@csc.ti.com>
- *
- * SQUID Internet Object Cache http://squid.nlanr.net/Squid/
- * ----------------------------------------------------------
- *
- * Squid is the result of efforts by numerous individuals from the
- * Internet community. Development is led by Duane Wessels of the
- * National Laboratory for Applied Network Research and funded by the
- * National Science Foundation. Squid is Copyrighted (C) 1998 by
- * Duane Wessels and the University of California San Diego. Please
- * see the COPYRIGHT file for full details. Squid incorporates
- * software developed and/or copyrighted by other sources. Please see
- * the CREDITS file for full details.
- *
- * 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 "squid.h"
- void
- useragentOpenLog(void)
- {
- #if USE_USERAGENT_LOG
- char *fname = NULL;
- int log_fd = -1;
- fname = Config.Log.useragent;
- /* Close and reopen the log. It may have been renamed "manually"
- * before HUP'ing us. */
- if (cache_useragent_log) {
- file_close(fileno(cache_useragent_log));
- fclose(cache_useragent_log);
- cache_useragent_log = NULL;
- }
- if (fname && strcmp(fname, "none") != 0) {
- log_fd = file_open(fname, O_WRONLY | O_CREAT | O_APPEND, NULL, NULL, NULL);
- if (log_fd < 0) {
- debug(50, 0) ("useragentOpenLog: %s: %sn", fname, xstrerror());
- } else if ((cache_useragent_log = fdopen(log_fd, "a")) == NULL) {
- file_close(log_fd);
- debug(50, 0) ("useragentOpenLog: %s: %sn", fname, xstrerror());
- }
- }
- if (log_fd < 0 || cache_useragent_log == NULL)
- debug(40, 1) ("User-Agent logging is disabled.n");
- #endif
- }
- void
- useragentRotateLog(void)
- {
- #if USE_USERAGENT_LOG
- char *fname = NULL;
- int i;
- LOCAL_ARRAY(char, from, MAXPATHLEN);
- LOCAL_ARRAY(char, to, MAXPATHLEN);
- struct stat sb;
- if ((fname = Config.Log.useragent) == NULL)
- return;
- if (strcmp(fname, "none") == 0)
- return;
- #ifdef S_ISREG
- if (stat(fname, &sb) == 0)
- if (S_ISREG(sb.st_mode) == 0)
- return;
- #endif
- debug(40, 1) ("useragentRotateLog: Rotating.n");
- /* Rotate numbers 0 through N up one */
- for (i = Config.Log.rotateNumber; i > 1;) {
- i--;
- snprintf(from, MAXPATHLEN, "%s.%d", fname, i - 1);
- snprintf(to, MAXPATHLEN, "%s.%d", fname, i);
- rename(from, to);
- }
- if (cache_useragent_log) {
- file_close(fileno(cache_useragent_log));
- fclose(cache_useragent_log);
- cache_useragent_log = NULL;
- }
- /* Rotate the current log to .0 */
- if (Config.Log.rotateNumber > 0) {
- snprintf(to, MAXPATHLEN, "%s.%d", fname, 0);
- rename(fname, to);
- }
- useragentOpenLog();
- #endif
- }
- void
- logUserAgent(const char *client, const char *agent)
- {
- #if USE_USERAGENT_LOG
- static time_t last_time = 0;
- static char time_str[128];
- const char *s;
- if (!cache_useragent_log)
- return;
- if (squid_curtime != last_time) {
- s = mkhttpdlogtime(&squid_curtime);
- strcpy(time_str, s);
- last_time = squid_curtime;
- }
- fprintf(cache_useragent_log, "%s [%s] "%s"n",
- client,
- time_str,
- agent);
- if (!Config.onoff.buffered_logs)
- fflush(cache_useragent_log);
- #endif
- }