NetBSD/libexec/httpd/main.c

405 lines
9.8 KiB
C

/* $NetBSD: main.c,v 1.22 2018/11/25 07:37:20 mrg Exp $ */
/* $eterna: main.c,v 1.6 2011/11/18 09:21:15 mrg Exp $ */
/* from: eterna: bozohttpd.c,v 1.159 2009/05/23 02:14:30 mrg Exp */
/*
* Copyright (c) 1997-2018 Matthew R. Green
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer and
* dedication in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/* this program is dedicated to the Great God of Processed Cheese */
/*
* main.c: C front end to bozohttpd
*/
#include <sys/types.h>
#include <sys/param.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include <unistd.h>
#include "bozohttpd.h"
/* variables and functions */
#ifndef LOG_FTP
#define LOG_FTP LOG_DAEMON
#endif
/* print a usage message, and then exit */
BOZO_DEAD static void
usage(bozohttpd_t *httpd, char *progname)
{
bozowarn(httpd, "usage: %s [options] slashdir [virtualhostname]",
progname);
bozowarn(httpd, "options:");
if (have_daemon_mode)
bozowarn(httpd, " -b\t\t\tbackground and go into daemon mode");
if (have_cgibin &&
have_dynamic_content)
bozowarn(httpd, " -C arg prog\t\tadd this CGI handler");
if (have_cgibin)
bozowarn(httpd, " -c cgibin\t\tenable cgi-bin support in "
"this directory");
if (have_debug)
bozowarn(httpd, " -d\t\t\tenable debug support");
if (have_cgibin)
bozowarn(httpd, " -E\t\t\tenable CGI support for user dirs");
if (have_user &&
have_cgibin)
bozowarn(httpd, " -e\t\t\tdon't clean the environment "
"(-t and -U only)");
if (have_daemon_mode)
bozowarn(httpd, " -f\t\t\tforeground in daemon mode");
if (have_all)
bozowarn(httpd, " -G print version number and exit");
if (have_dirindex)
bozowarn(httpd, " -H\t\t\thide files starting with a period "
"(.) in index mode");
if (have_all)
bozowarn(httpd, " -I port\t\tbind or use on this port");
if (have_daemon_mode)
bozowarn(httpd, " -i address\t\tbind on this address "
"(daemon mode only)");
if (have_lua)
bozowarn(httpd, " -L arg script\tadd this Lua script");
if (have_dynamic_content)
bozowarn(httpd, " -M arg t c c11\tadd this mime extenstion");
if (have_daemon_mode)
bozowarn(httpd, " -P pidfile\t\tpid file path");
if (have_user)
bozowarn(httpd, " -p dir\t\t\"public_html\" directory name");
if (have_all) {
bozowarn(httpd, " -S version\t\tset server version string");
bozowarn(httpd, " -s\t\t\talways log to stderr");
bozowarn(httpd, " -T type timeout\tset `type' timeout");
bozowarn(httpd, " -t dir\t\tchroot to `dir'");
bozowarn(httpd, " -U username\t\tchange user to `user'");
}
if (have_user)
bozowarn(httpd, " -u\t\t\tenable ~user/public_html support");
if (have_all) {
bozowarn(httpd, " -V\t\t\tUnknown virtual hosts go to "
"`slashdir'");
bozowarn(httpd, " -v virtualroot\tenable virtual host "
"support in this directory");
}
if (have_dirindex)
bozowarn(httpd, " -X\t\t\tdirectory index support");
if (have_all)
bozowarn(httpd, " -x index\t\tdefault \"index.html\" "
"file name");
if (have_ssl) {
bozowarn(httpd, " -Z cert privkey\tspecify path to server "
"certificate and private key file\n"
"\t\t\tin pem format and enable bozohttpd in "
"SSL mode");
bozowarn(httpd, " -z ciphers\t\tspecify SSL ciphers");
}
bozoerr(httpd, 1, "%s failed to start", progname);
}
int
main(int argc, char **argv)
{
bozo_httpreq_t *request;
bozohttpd_t httpd;
bozoprefs_t prefs;
char *progname;
const char *val;
int c;
(void) memset(&httpd, 0x0, sizeof(httpd));
(void) memset(&prefs, 0x0, sizeof(prefs));
if ((progname = strrchr(argv[0], '/')) == NULL)
progname = argv[0];
else
progname++;
openlog(progname, LOG_PID|LOG_NDELAY, LOG_FTP);
bozo_set_defaults(&httpd, &prefs);
/*
* -r option was removed, do not reuse it for a while
*/
while ((c = getopt(argc, argv,
"C:EGHI:L:M:P:S:T:U:VXZ:bc:defhi:np:st:uv:x:z:")) != -1) {
switch (c) {
case 'b':
if (!have_daemon_mode)
no_daemon_mode:
bozoerr(&httpd, 1, "Daemon mode not enabled");
/*
* test suite support - undocumented
* background == 2 (aka, -b -b) means to
* only process 1 per kid
*/
val = bozo_get_pref(&prefs, "background") == NULL ?
"1" : "2";
bozo_set_pref(&httpd, &prefs, "background", val);
break;
case 'c':
if (!have_cgibin)
bozoerr(&httpd, 1, "CGI not enabled");
bozo_cgi_setbin(&httpd, optarg);
break;
case 'C':
if (!have_dynamic_content && !have_cgibin)
bozoerr(&httpd, 1,
"dynamic CGI handler support not enabled");
/* make sure there's two arguments */
if (argc - optind < 1)
usage(&httpd, progname);
bozo_add_content_map_cgi(&httpd, optarg,
argv[optind++]);
break;
case 'd':
if (!have_debug)
bozowarn(&httpd, "Debugging not enabled");
httpd.debug++;
break;
case 'E':
if (have_user &&
have_cgibin)
bozoerr(&httpd, 1, "CGI not enabled");
bozo_set_pref(&httpd, &prefs, "enable user cgibin",
"true");
break;
case 'e':
if (!have_daemon_mode)
goto no_daemon_mode;
bozo_set_pref(&httpd, &prefs, "dirty environment",
"true");
break;
case 'f':
if (!have_daemon_mode)
goto no_daemon_mode;
bozo_set_pref(&httpd, &prefs, "foreground", "true");
break;
case 'G':
{
char version[128];
bozo_get_version(version, sizeof(version));
printf("bozohttpd version %s\n", version);
}
return 0;
case 'H':
if (!have_dirindex)
no_dirindex_support:
bozoerr(&httpd, 1,
"directory indexing not enabled");
bozo_set_pref(&httpd, &prefs, "hide dots", "true");
break;
case 'I':
bozo_set_pref(&httpd, &prefs, "port number", optarg);
break;
case 'i':
if (!have_daemon_mode)
goto no_daemon_mode;
bozo_set_pref(&httpd, &prefs, "bind address", optarg);
break;
case 'L':
if (!have_lua)
bozoerr(&httpd, 1, "Lua support not enabled");
/* make sure there's two argument */
if (argc - optind < 1)
usage(&httpd, progname);
bozo_add_lua_map(&httpd, optarg, argv[optind]);
optind++;
break;
case 'M':
if (!have_dynamic_content)
bozoerr(&httpd, 1,
"dynamic mime content support not enabled");
/* make sure there're four arguments */
if (argc - optind < 3)
usage(&httpd, progname);
bozo_add_content_map_mime(&httpd, optarg, argv[optind],
argv[optind+1], argv[optind+2]);
optind += 3;
break;
case 'n':
bozo_set_pref(&httpd, &prefs, "numeric", "true");
break;
case 'P':
if (!have_daemon_mode)
goto no_daemon_mode;
bozo_set_pref(&httpd, &prefs, "pid file", optarg);
break;
case 'p':
if (!have_user)
no_user_support:
bozoerr(&httpd, 1, "User support not enabled");
bozo_set_pref(&httpd, &prefs, "public_html", optarg);
break;
case 'S':
bozo_set_pref(&httpd, &prefs, "server software",
optarg);
break;
case 's':
bozo_set_pref(&httpd, &prefs, "log to stderr", "true");
break;
case 'T':
/* make sure there're two arguments */
if (argc - optind < 1)
usage(&httpd, progname);
if (bozo_set_timeout(&httpd, &prefs,
optarg, argv[optind])) {
bozoerr(&httpd, 1,
"invalid type '%s'", optarg);
/* NOTREACHED */
}
optind++;
break;
case 't':
bozo_set_pref(&httpd, &prefs, "chroot dir", optarg);
break;
case 'U':
bozo_set_pref(&httpd, &prefs, "username", optarg);
break;
case 'u':
if (!have_user)
goto no_user_support;
bozo_set_pref(&httpd, &prefs, "enable users", "true");
break;
case 'V':
bozo_set_pref(&httpd, &prefs, "unknown slash", "true");
break;
case 'v':
bozo_set_pref(&httpd, &prefs, "virtual base", optarg);
break;
case 'X':
if (!have_dirindex)
goto no_dirindex_support;
bozo_set_pref(&httpd, &prefs, "directory indexing",
"true");
break;
case 'x':
bozo_set_pref(&httpd, &prefs, "index.html", optarg);
break;
case 'Z':
if (!have_ssl)
no_ssl:
bozoerr(&httpd, 1, "ssl support not enabled");
/* make sure there's two arguments */
if (argc - optind < 1)
usage(&httpd, progname);
bozo_ssl_set_opts(&httpd, optarg, argv[optind++]);
break;
case 'z':
if (!have_ssl)
goto no_ssl;
bozo_ssl_set_ciphers(&httpd, optarg);
break;
default:
usage(&httpd, progname);
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc == 0 || argc > 2) {
usage(&httpd, progname);
}
/* virtual host, and root of tree to serve */
bozo_setup(&httpd, &prefs, argv[1], argv[0]);
/*
* read and process the HTTP request.
*/
do {
if ((request = bozo_read_request(&httpd)) != NULL) {
bozo_process_request(request);
bozo_clean_request(request);
}
} while (httpd.background);
return (0);
}