bozohttpd.h revision 1.35
1 /* $NetBSD: bozohttpd.h,v 1.35 2015/05/02 11:35:48 mrg Exp $ */ 2 3 /* $eterna: bozohttpd.h,v 1.39 2011/11/18 09:21:15 mrg Exp $ */ 4 5 /* 6 * Copyright (c) 1997-2015 Matthew R. Green 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer and 16 * dedication in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 */ 32 #ifndef BOZOHTTOPD_H_ 33 #define BOZOHTTOPD_H_ 1 34 35 #include "netbsd_queue.h" 36 37 #include <sys/stat.h> 38 39 #ifndef NO_LUA_SUPPORT 40 #include <lua.h> 41 #endif 42 #include <stdio.h> 43 44 /* lots of "const" but gets free()'ed etc at times, sigh */ 45 46 /* headers */ 47 typedef struct bozoheaders { 48 /*const*/ char *h_header; 49 /*const*/ char *h_value; /* this gets free()'ed etc at times */ 50 SIMPLEQ_ENTRY(bozoheaders) h_next; 51 } bozoheaders_t; 52 53 #ifndef NO_LUA_SUPPORT 54 typedef struct lua_handler { 55 const char *name; 56 int ref; 57 SIMPLEQ_ENTRY(lua_handler) h_next; 58 } lua_handler_t; 59 60 typedef struct lua_state_map { 61 const char *script; 62 const char *prefix; 63 lua_State *L; 64 SIMPLEQ_HEAD(, lua_handler) handlers; 65 SIMPLEQ_ENTRY(lua_state_map) s_next; 66 } lua_state_map_t; 67 #endif 68 69 typedef struct bozo_content_map_t { 70 const char *name; /* postfix of file */ 71 const char *type; /* matching content-type */ 72 const char *encoding; /* matching content-encoding */ 73 const char *encoding11; /* matching content-encoding (HTTP/1.1) */ 74 const char *cgihandler; /* optional CGI handler */ 75 } bozo_content_map_t; 76 77 /* this struct holds the bozo constants */ 78 typedef struct bozo_consts_t { 79 const char *http_09; /* "HTTP/0.9" */ 80 const char *http_10; /* "HTTP/1.0" */ 81 const char *http_11; /* "HTTP/1.1" */ 82 const char *text_plain; /* "text/plain" */ 83 } bozo_consts_t; 84 85 /* this structure encapsulates all the bozo flags and control vars */ 86 typedef struct bozohttpd_t { 87 char *rootdir; /* root directory */ 88 char *username; /* username to switch to */ 89 int numeric; /* avoid gethostby*() */ 90 char *virtbase; /* virtual directory base */ 91 int unknown_slash; /* unknown vhosts go to normal slashdir */ 92 int untrustedref; /* make sure referrer = me unless url = / */ 93 int logstderr; /* log to stderr (even if not tty) */ 94 int background; /* drop into daemon mode */ 95 int foreground; /* keep daemon mode in foreground */ 96 char *pidfile; /* path to the pid file, if any */ 97 size_t page_size; /* page size */ 98 char *slashdir; /* www slash directory */ 99 char *bindport; /* bind port; default "http" */ 100 char *bindaddress; /* address for binding - INADDR_ANY */ 101 int debug; /* debugging level */ 102 char *virthostname; /* my name */ 103 const char *server_software;/* our brand :-) */ 104 const char *index_html; /* our home page */ 105 const char *public_html; /* ~user/public_html page */ 106 int enable_users; /* enable public_html */ 107 int *sock; /* bound sockets */ 108 int nsock; /* number of above */ 109 struct pollfd *fds; /* current poll fd set */ 110 int request_times; /* # times a request was processed */ 111 int dir_indexing; /* handle directories */ 112 int hide_dots; /* hide .* */ 113 int process_cgi; /* use the cgi handler */ 114 char *cgibin; /* cgi-bin directory */ 115 #ifndef NO_LUA_SUPPORT 116 int process_lua; /* use the Lua handler */ 117 SIMPLEQ_HEAD(, lua_state_map) lua_states; 118 #endif 119 void *sslinfo; /* pointer to ssl struct */ 120 int dynamic_content_map_size;/* size of dyn cont map */ 121 bozo_content_map_t *dynamic_content_map;/* dynamic content map */ 122 size_t mmapsz; /* size of region to mmap */ 123 char *getln_buffer; /* space for getln buffer */ 124 ssize_t getln_buflen; /* length of allocated space */ 125 char *errorbuf; /* no dynamic allocation allowed */ 126 bozo_consts_t consts; /* various constants */ 127 } bozohttpd_t; 128 129 /* bozo_httpreq_t */ 130 typedef struct bozo_httpreq_t { 131 bozohttpd_t *hr_httpd; 132 int hr_method; 133 #define HTTP_GET 0x01 134 #define HTTP_POST 0x02 135 #define HTTP_HEAD 0x03 136 #define HTTP_OPTIONS 0x04 /* not supported */ 137 #define HTTP_PUT 0x05 /* not supported */ 138 #define HTTP_DELETE 0x06 /* not supported */ 139 #define HTTP_TRACE 0x07 /* not supported */ 140 #define HTTP_CONNECT 0x08 /* not supported */ 141 const char *hr_methodstr; 142 char *hr_virthostname; /* server name (if not identical 143 to hr_httpd->virthostname) */ 144 char *hr_file; 145 char *hr_oldfile; /* if we added an index_html */ 146 char *hr_query; 147 char *hr_host; /* HTTP/1.1 Host: or virtual hostname, 148 possibly including a port number */ 149 const char *hr_proto; 150 const char *hr_content_type; 151 const char *hr_content_length; 152 const char *hr_allow; 153 const char *hr_referrer; 154 const char *hr_range; 155 const char *hr_if_modified_since; 156 const char *hr_accept_encoding; 157 int hr_have_range; 158 off_t hr_first_byte_pos; 159 off_t hr_last_byte_pos; 160 /*const*/ char *hr_remotehost; 161 /*const*/ char *hr_remoteaddr; 162 /*const*/ char *hr_serverport; 163 #ifdef DO_HTPASSWD 164 /*const*/ char *hr_authrealm; 165 /*const*/ char *hr_authuser; 166 /*const*/ char *hr_authpass; 167 #endif 168 SIMPLEQ_HEAD(, bozoheaders) hr_headers; 169 int hr_nheaders; 170 } bozo_httpreq_t; 171 172 /* helper to access the "active" host name from a httpd/request pair */ 173 #define BOZOHOST(HTTPD,REQUEST) ((REQUEST)->hr_virthostname ? \ 174 (REQUEST)->hr_virthostname : \ 175 (HTTPD)->virthostname) 176 177 /* structure to hold string based (name, value) pairs with preferences */ 178 typedef struct bozoprefs_t { 179 unsigned size; /* size of the two arrays */ 180 unsigned c; /* # of entries in arrays */ 181 char **name; /* names of each entry */ 182 char **value; /* values for the name entries */ 183 } bozoprefs_t; 184 185 /* by default write in upto 64KiB chunks, and mmap in upto 64MiB chunks */ 186 #ifndef BOZO_WRSZ 187 #define BOZO_WRSZ (64 * 1024) 188 #endif 189 #ifndef BOZO_MMAPSZ 190 #define BOZO_MMAPSZ (BOZO_WRSZ * 1024) 191 #endif 192 193 /* debug flags */ 194 #define DEBUG_NORMAL 1 195 #define DEBUG_FAT 2 196 #define DEBUG_OBESE 3 197 #define DEBUG_EXPLODING 4 198 199 #define strornull(x) ((x) ? (x) : "<null>") 200 201 #if defined(__GNUC__) && __GNUC__ >= 3 202 #define BOZO_PRINTFLIKE(x,y) __attribute__((__format__(__printf__, x,y))) 203 #define BOZO_DEAD __attribute__((__noreturn__)) 204 #endif 205 206 #ifndef NO_DEBUG 207 void debug__(bozohttpd_t *, int, const char *, ...) BOZO_PRINTFLIKE(3, 4); 208 #define debug(x) debug__ x 209 #else 210 #define debug(x) 211 #endif /* NO_DEBUG */ 212 213 void bozo_warn(bozohttpd_t *, const char *, ...) 214 BOZO_PRINTFLIKE(2, 3); 215 void bozo_err(bozohttpd_t *, int, const char *, ...) 216 BOZO_PRINTFLIKE(3, 4) 217 BOZO_DEAD; 218 int bozo_http_error(bozohttpd_t *, int, bozo_httpreq_t *, const char *); 219 220 int bozo_check_special_files(bozo_httpreq_t *, const char *); 221 char *bozo_http_date(char *, size_t); 222 void bozo_print_header(bozo_httpreq_t *, struct stat *, const char *, const char *); 223 char *bozo_escape_rfc3986(bozohttpd_t *httpd, const char *url); 224 char *bozo_escape_html(bozohttpd_t *httpd, const char *url); 225 226 char *bozodgetln(bozohttpd_t *, int, ssize_t *, ssize_t (*)(bozohttpd_t *, int, void *, size_t)); 227 char *bozostrnsep(char **, const char *, ssize_t *); 228 229 void *bozomalloc(bozohttpd_t *, size_t); 230 void *bozorealloc(bozohttpd_t *, void *, size_t); 231 char *bozostrdup(bozohttpd_t *, const char *); 232 233 /* ssl-bozo.c */ 234 #ifdef NO_SSL_SUPPORT 235 #define bozo_ssl_set_opts(w, x, y) do { /* nothing */ } while (0) 236 #define bozo_ssl_init(x) do { /* nothing */ } while (0) 237 #define bozo_ssl_accept(x) (0) 238 #define bozo_ssl_destroy(x) do { /* nothing */ } while (0) 239 #else 240 void bozo_ssl_set_opts(bozohttpd_t *, const char *, const char *); 241 void bozo_ssl_init(bozohttpd_t *); 242 int bozo_ssl_accept(bozohttpd_t *); 243 void bozo_ssl_destroy(bozohttpd_t *); 244 #endif 245 246 247 /* auth-bozo.c */ 248 #ifdef DO_HTPASSWD 249 void bozo_auth_init(bozo_httpreq_t *); 250 int bozo_auth_check(bozo_httpreq_t *, const char *); 251 void bozo_auth_cleanup(bozo_httpreq_t *); 252 int bozo_auth_check_headers(bozo_httpreq_t *, char *, char *, ssize_t); 253 int bozo_auth_check_special_files(bozo_httpreq_t *, const char *); 254 void bozo_auth_check_401(bozo_httpreq_t *, int); 255 void bozo_auth_cgi_setenv(bozo_httpreq_t *, char ***); 256 int bozo_auth_cgi_count(bozo_httpreq_t *); 257 #else 258 #define bozo_auth_init(x) do { /* nothing */ } while (0) 259 #define bozo_auth_check(x, y) 0 260 #define bozo_auth_cleanup(x) do { /* nothing */ } while (0) 261 #define bozo_auth_check_headers(y, z, a, b) 0 262 #define bozo_auth_check_special_files(x, y) 0 263 #define bozo_auth_check_401(x, y) do { /* nothing */ } while (0) 264 #define bozo_auth_cgi_setenv(x, y) do { /* nothing */ } while (0) 265 #define bozo_auth_cgi_count(x) 0 266 #endif /* DO_HTPASSWD */ 267 268 269 /* cgi-bozo.c */ 270 #ifdef NO_CGIBIN_SUPPORT 271 #define bozo_process_cgi(h) 0 272 #else 273 void bozo_cgi_setbin(bozohttpd_t *, const char *); 274 void bozo_setenv(bozohttpd_t *, const char *, const char *, char **); 275 int bozo_process_cgi(bozo_httpreq_t *); 276 void bozo_add_content_map_cgi(bozohttpd_t *, const char *, const char *); 277 #endif /* NO_CGIBIN_SUPPORT */ 278 279 280 /* lua-bozo.c */ 281 #ifdef NO_LUA_SUPPORT 282 #define bozo_process_lua(h) 0 283 #else 284 void bozo_add_lua_map(bozohttpd_t *, const char *, const char *); 285 int bozo_process_lua(bozo_httpreq_t *); 286 #endif /* NO_LUA_SUPPORT */ 287 288 289 /* daemon-bozo.c */ 290 #ifdef NO_DAEMON_MODE 291 #define bozo_daemon_init(x) do { /* nothing */ } while (0) 292 #define bozo_daemon_fork(x) 0 293 #define bozo_daemon_closefds(x) do { /* nothing */ } while (0) 294 #else 295 void bozo_daemon_init(bozohttpd_t *); 296 int bozo_daemon_fork(bozohttpd_t *); 297 void bozo_daemon_closefds(bozohttpd_t *); 298 #endif /* NO_DAEMON_MODE */ 299 300 301 /* tilde-luzah-bozo.c */ 302 #ifdef NO_USER_SUPPORT 303 #define bozo_user_transform(a, c) 0 304 #else 305 int bozo_user_transform(bozo_httpreq_t *, int *); 306 #endif /* NO_USER_SUPPORT */ 307 308 309 /* dir-index-bozo.c */ 310 #ifdef NO_DIRINDEX_SUPPORT 311 #define bozo_dir_index(a, b, c) 0 312 #else 313 int bozo_dir_index(bozo_httpreq_t *, const char *, int); 314 #endif /* NO_DIRINDEX_SUPPORT */ 315 316 317 /* content-bozo.c */ 318 const char *bozo_content_type(bozo_httpreq_t *, const char *); 319 const char *bozo_content_encoding(bozo_httpreq_t *, const char *); 320 bozo_content_map_t *bozo_match_content_map(bozohttpd_t *, const char *, int); 321 bozo_content_map_t *bozo_get_content_map(bozohttpd_t *, const char *); 322 #ifndef NO_DYNAMIC_CONTENT 323 void bozo_add_content_map_mime(bozohttpd_t *, const char *, const char *, const char *, const char *); 324 #endif 325 326 /* I/O */ 327 int bozo_printf(bozohttpd_t *, const char *, ...) BOZO_PRINTFLIKE(2, 3);; 328 ssize_t bozo_read(bozohttpd_t *, int, void *, size_t); 329 ssize_t bozo_write(bozohttpd_t *, int, const void *, size_t); 330 int bozo_flush(bozohttpd_t *, FILE *); 331 332 /* misc */ 333 int bozo_init_httpd(bozohttpd_t *); 334 int bozo_init_prefs(bozoprefs_t *); 335 int bozo_set_defaults(bozohttpd_t *, bozoprefs_t *); 336 int bozo_setup(bozohttpd_t *, bozoprefs_t *, const char *, const char *); 337 bozo_httpreq_t *bozo_read_request(bozohttpd_t *); 338 void bozo_process_request(bozo_httpreq_t *); 339 void bozo_clean_request(bozo_httpreq_t *); 340 341 /* variables */ 342 int bozo_set_pref(bozoprefs_t *, const char *, const char *); 343 char *bozo_get_pref(bozoprefs_t *, const char *); 344 345 #endif /* BOZOHTTOPD_H_ */ 346
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