1 /* $NetBSD: main.c,v 1.14 2016/05/24 21:18:29 agc Exp $ */ 2 3 /* $eterna: main.c,v 1.6 2011/11/18 09:21:15 mrg Exp $ */ 4 /* from: eterna: bozohttpd.c,v 1.159 2009/05/23 02:14:30 mrg Exp */ 5 6 /* 7 * Copyright (c) 1997-2014 Matthew R. Green 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer and 17 * dedication in the documentation and/or other materials provided 18 * with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 27 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34 /* this program is dedicated to the Great God of Processed Cheese */ 35 36 /* 37 * main.c: C front end to bozohttpd 38 */ 39 40 #include <sys/types.h> 41 #include <sys/param.h> 42 43 #include <errno.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <syslog.h> 47 #include <time.h> 48 #include <unistd.h> 49 50 #include "bozohttpd.h" 51 52 /* variables and functions */ 53 #ifndef LOG_FTP 54 #define LOG_FTP LOG_DAEMON 55 #endif 56 57 /* print a usage message, and then exit */ 58 BOZO_DEAD static void 59 usage(bozohttpd_t *httpd, char *progname) 60 { 61 bozowarn(httpd, "usage: %s [options] slashdir [virtualhostname]", 62 progname); 63 bozowarn(httpd, "options:"); 64 #ifndef NO_DEBUG 65 bozowarn(httpd, " -d\t\t\tenable debug support"); 66 #endif 67 bozowarn(httpd, " -s\t\t\talways log to stderr"); 68 #ifndef NO_DYNAMIC_CONTENT 69 bozowarn(httpd, " -M arg t c c11\tadd this mime extenstion"); 70 #endif 71 #ifndef NO_USER_SUPPORT 72 bozowarn(httpd, " -u\t\t\tenable ~user/public_html support"); 73 bozowarn(httpd, " -p dir\t\tchange `public_html' directory name"); 74 #ifndef NO_CGIBIN_SUPPORT 75 bozowarn(httpd, " -E\t\t\tenable CGI support for user dirs"); 76 #endif 77 #endif 78 #ifndef NO_CGIBIN_SUPPORT 79 #ifndef NO_DYNAMIC_CONTENT 80 bozowarn(httpd, " -C arg prog\t\tadd this CGI handler"); 81 #endif 82 bozowarn(httpd, 83 " -c cgibin\t\tenable cgi-bin support in this directory"); 84 #endif 85 #ifndef NO_LUA_SUPPORT 86 bozowarn(httpd, " -L arg script\tadd this Lua script"); 87 #endif 88 bozowarn(httpd, " -I port\t\tbind or use on this port"); 89 #ifndef NO_DAEMON_MODE 90 bozowarn(httpd, " -b\t\t\tbackground and go into daemon mode"); 91 bozowarn(httpd, " -f\t\t\tkeep daemon mode in the foreground"); 92 bozowarn(httpd, 93 " -i address\t\tbind on this address (daemon mode only)"); 94 bozowarn(httpd, " -P pidfile\t\tpath to the pid file to create"); 95 #endif 96 bozowarn(httpd, " -S version\t\tset server version string"); 97 bozowarn(httpd, " -t dir\t\tchroot to `dir'"); 98 bozowarn(httpd, " -U username\t\tchange user to `user'"); 99 bozowarn(httpd, 100 " -e\t\t\tdon't clean the environment (-t and -U only)"); 101 bozowarn(httpd, 102 " -v virtualroot\tenable virtual host support " 103 "in this directory"); 104 #ifndef NO_DIRINDEX_SUPPORT 105 bozowarn(httpd, 106 " -X\t\t\tenable automatic directory index support"); 107 bozowarn(httpd, 108 " -H\t\t\thide files starting with a period (.)" 109 " in index mode"); 110 #endif 111 bozowarn(httpd, 112 " -x index\t\tchange default `index.html' file name"); 113 #ifndef NO_SSL_SUPPORT 114 bozowarn(httpd, 115 " -z ciphers\t\tspecify SSL ciphers"); 116 bozowarn(httpd, 117 " -Z cert privkey\tspecify path to server certificate" 118 " and private key file\n" 119 "\t\t\tin pem format and enable bozohttpd in SSL mode"); 120 #endif /* NO_SSL_SUPPORT */ 121 bozowarn(httpd, " -G print version number and exit"); 122 bozoerr(httpd, 1, "%s failed to start", progname); 123 } 124 125 int 126 main(int argc, char **argv) 127 { 128 bozo_httpreq_t *request; 129 bozohttpd_t httpd; 130 bozoprefs_t prefs; 131 char *progname; 132 const char *val; 133 int c; 134 135 (void) memset(&httpd, 0x0, sizeof(httpd)); 136 (void) memset(&prefs, 0x0, sizeof(prefs)); 137 138 if ((progname = strrchr(argv[0], '/')) == NULL) 139 progname = argv[0]; 140 else 141 progname++; 142 143 openlog(progname, LOG_PID|LOG_NDELAY, LOG_FTP); 144 145 bozo_set_defaults(&httpd, &prefs); 146 147 /* 148 * -r option was removed, do not reuse it for a while 149 */ 150 151 while ((c = getopt(argc, argv, 152 "C:EGHI:L:M:P:S:U:VXZ:bc:defhi:np:st:uv:x:z:")) != -1) { 153 switch (c) { 154 155 case 'L': 156 #ifdef NO_LUA_SUPPORT 157 bozoerr(&httpd, 1, 158 "Lua support is not enabled"); 159 /* NOTREACHED */ 160 #else 161 /* make sure there's two argument */ 162 if (argc - optind < 1) 163 usage(&httpd, progname); 164 bozo_add_lua_map(&httpd, optarg, argv[optind]); 165 optind++; 166 break; 167 #endif /* NO_LUA_SUPPORT */ 168 case 'M': 169 #ifdef NO_DYNAMIC_CONTENT 170 bozoerr(&httpd, 1, 171 "dynamic mime content support is not enabled"); 172 /* NOTREACHED */ 173 #else 174 /* make sure there's four arguments */ 175 if (argc - optind < 3) 176 usage(&httpd, progname); 177 bozo_add_content_map_mime(&httpd, optarg, argv[optind], 178 argv[optind+1], argv[optind+2]); 179 optind += 3; 180 break; 181 #endif /* NO_DYNAMIC_CONTENT */ 182 183 case 'n': 184 bozo_set_pref(&httpd, &prefs, "numeric", "true"); 185 break; 186 187 case 's': 188 bozo_set_pref(&httpd, &prefs, "log to stderr", "true"); 189 break; 190 191 case 'S': 192 bozo_set_pref(&httpd, &prefs, "server software", 193 optarg); 194 break; 195 case 'Z': 196 #ifdef NO_SSL_SUPPORT 197 bozoerr(&httpd, 1, "ssl support is not enabled"); 198 /* NOT REACHED */ 199 #else 200 /* make sure there's two arguments */ 201 if (argc - optind < 1) 202 usage(&httpd, progname); 203 bozo_ssl_set_opts(&httpd, optarg, argv[optind++]); 204 break; 205 #endif /* NO_SSL_SUPPORT */ 206 207 case 'z': 208 #ifdef NO_SSL_SUPPORT 209 bozoerr(&httpd, 1, "ssl support is not enabled"); 210 /* NOT REACHED */ 211 #else 212 bozo_ssl_set_ciphers(&httpd, optarg); 213 break; 214 #endif /* NO_SSL_SUPPORT */ 215 216 case 'U': 217 bozo_set_pref(&httpd, &prefs, "username", optarg); 218 break; 219 220 case 'V': 221 bozo_set_pref(&httpd, &prefs, "unknown slash", "true"); 222 break; 223 224 case 'v': 225 bozo_set_pref(&httpd, &prefs, "virtual base", optarg); 226 break; 227 228 case 'x': 229 bozo_set_pref(&httpd, &prefs, "index.html", optarg); 230 break; 231 232 case 'I': 233 bozo_set_pref(&httpd, &prefs, "port number", optarg); 234 break; 235 236 #ifdef NO_DAEMON_MODE 237 case 'b': 238 case 'e': 239 case 'f': 240 case 'i': 241 case 'P': 242 bozoerr(&httpd, 1, "Daemon mode is not enabled"); 243 /* NOTREACHED */ 244 #else 245 case 'b': 246 /* 247 * test suite support - undocumented 248 * background == 2 (aka, -b -b) means to 249 * only process 1 per kid 250 */ 251 val = bozo_get_pref(&prefs, "background") == NULL ? 252 "1" : "2"; 253 bozo_set_pref(&httpd, &prefs, "background", val); 254 break; 255 256 case 'e': 257 bozo_set_pref(&httpd, &prefs, "dirty environment", 258 "true"); 259 break; 260 261 case 'f': 262 bozo_set_pref(&httpd, &prefs, "foreground", "true"); 263 break; 264 265 case 'i': 266 bozo_set_pref(&httpd, &prefs, "bind address", optarg); 267 break; 268 269 case 'P': 270 bozo_set_pref(&httpd, &prefs, "pid file", optarg); 271 break; 272 #endif /* NO_DAEMON_MODE */ 273 274 #ifdef NO_CGIBIN_SUPPORT 275 case 'c': 276 case 'C': 277 bozoerr(&httpd, 1, "CGI is not enabled"); 278 /* NOTREACHED */ 279 #else 280 case 'c': 281 bozo_cgi_setbin(&httpd, optarg); 282 break; 283 284 case 'C': 285 # ifdef NO_DYNAMIC_CONTENT 286 bozoerr(&httpd, 1, 287 "dynamic CGI handler support is not enabled"); 288 /* NOTREACHED */ 289 # else 290 /* make sure there's two arguments */ 291 if (argc - optind < 1) 292 usage(&httpd, progname); 293 bozo_add_content_map_cgi(&httpd, optarg, 294 argv[optind++]); 295 break; 296 # endif /* NO_DYNAMIC_CONTENT */ 297 #endif /* NO_CGIBIN_SUPPORT */ 298 299 case 'd': 300 httpd.debug++; 301 #ifdef NO_DEBUG 302 if (httpd.debug == 1) 303 bozowarn(&httpd, "Debugging is not enabled"); 304 #endif /* NO_DEBUG */ 305 break; 306 307 case 't': 308 bozo_set_pref(&httpd, &prefs, "chroot dir", optarg); 309 break; 310 311 #ifdef NO_USER_SUPPORT 312 case 'p': 313 case 'u': 314 case 'E': 315 bozoerr(&httpd, 1, "User support is not enabled"); 316 /* NOTREACHED */ 317 #else 318 case 'p': 319 bozo_set_pref(&httpd, &prefs, "public_html", optarg); 320 break; 321 322 case 'u': 323 bozo_set_pref(&httpd, &prefs, "enable users", "true"); 324 break; 325 #ifndef NO_CGIBIN_SUPPORT 326 case 'E': 327 bozo_set_pref(&httpd, &prefs, "enable user cgibin", 328 "true"); 329 break; 330 #else 331 case 'E': 332 bozoerr(&httpd, 1, "CGI is not enabled"); 333 /* NOTREACHED */ 334 #endif /* NO_CGIBIN_SPPORT */ 335 #endif /* NO_USER_SUPPORT */ 336 337 #ifdef NO_DIRINDEX_SUPPORT 338 case 'H': 339 case 'X': 340 bozoerr(&httpd, 1, 341 "directory indexing is not enabled"); 342 /* NOTREACHED */ 343 #else 344 case 'H': 345 bozo_set_pref(&httpd, &prefs, "hide dots", "true"); 346 break; 347 348 case 'X': 349 bozo_set_pref(&httpd, &prefs, "directory indexing", 350 "true"); 351 break; 352 353 #endif /* NO_DIRINDEX_SUPPORT */ 354 355 case 'G': 356 { 357 char version[128]; 358 359 bozo_get_version(version, sizeof(version)); 360 printf("bozohttpd version %s\n", version); 361 } 362 return 0; 363 364 default: 365 usage(&httpd, progname); 366 /* NOTREACHED */ 367 } 368 } 369 370 argc -= optind; 371 argv += optind; 372 373 if (argc == 0 || argc > 2) { 374 usage(&httpd, progname); 375 } 376 377 /* virtual host, and root of tree to serve */ 378 bozo_setup(&httpd, &prefs, argv[1], argv[0]); 379 380 /* 381 * read and process the HTTP request. 382 */ 383 do { 384 if ((request = bozo_read_request(&httpd)) != NULL) { 385 bozo_process_request(request); 386 bozo_clean_request(request); 387 } 388 } while (httpd.background); 389 390 return (0); 391 } 392