bozohttpd.h revision 1.27
1 /* $NetBSD: bozohttpd.h,v 1.27 2013/07/11 08:24:47 mrg Exp $ */ 2 3 /* $eterna: bozohttpd.h,v 1.39 2011/11/18 09:21:15 mrg Exp $ */ 4 5 /* 6 * Copyright (c) 1997-2013 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 #include <stdio.h> 40 41 /* lots of "const" but gets free()'ed etc at times, sigh */ 42 43 /* headers */ 44 typedef struct bozoheaders { 45 /*const*/ char *h_header; 46 /*const*/ char *h_value; /* this gets free()'ed etc at times */ 47 SIMPLEQ_ENTRY(bozoheaders) h_next; 48 } bozoheaders_t; 49 50 typedef struct bozo_content_map_t { 51 const char *name; /* postfix of file */ 52 size_t namelen; /* length of postfix */ 53 const char *type; /* matching content-type */ 54 const char *encoding; /* matching content-encoding */ 55 const char *encoding11; /* matching content-encoding (HTTP/1.1) */ 56 const char *cgihandler; /* optional CGI handler */ 57 } bozo_content_map_t; 58 59 /* this struct holds the bozo constants */ 60 typedef struct bozo_consts_t { 61 const char *http_09; /* "HTTP/0.9" */ 62 const char *http_10; /* "HTTP/1.0" */ 63 const char *http_11; /* "HTTP/1.1" */ 64 const char *text_plain; /* "text/plain" */ 65 } bozo_consts_t; 66 67 /* this structure encapsulates all the bozo flags and control vars */ 68 typedef struct bozohttpd_t { 69 char *rootdir; /* root directory */ 70 char *username; /* username to switch to */ 71 int numeric; /* avoid gethostby*() */ 72 char *virtbase; /* virtual directory base */ 73 int unknown_slash; /* unknown vhosts go to normal slashdir */ 74 int untrustedref; /* make sure referrer = me unless url = / */ 75 int logstderr; /* log to stderr (even if not tty) */ 76 int background; /* drop into daemon mode */ 77 int foreground; /* keep daemon mode in foreground */ 78 char *pidfile; /* path to the pid file, if any */ 79 size_t page_size; /* page size */ 80 char *slashdir; /* www slash directory */ 81 char *bindport; /* bind port; default "http" */ 82 char *bindaddress; /* address for binding - INADDR_ANY */ 83 int debug; /* debugging level */ 84 char *virthostname; /* my name */ 85 const char *server_software;/* our brand :-) */ 86 const char *index_html; /* our home page */ 87 const char *public_html; /* ~user/public_html page */ 88 int enable_users; /* enable public_html */ 89 int *sock; /* bound sockets */ 90 int nsock; /* number of above */ 91 struct pollfd *fds; /* current poll fd set */ 92 int request_times; /* # times a request was processed */ 93 int dir_indexing; /* handle directories */ 94 int hide_dots; /* hide .* */ 95 int process_cgi; /* use the cgi handler */ 96 char *cgibin; /* cgi-bin directory */ 97 void *sslinfo; /* pointer to ssl struct */ 98 int dynamic_content_map_size;/* size of dyn cont map */ 99 bozo_content_map_t *dynamic_content_map;/* dynamic content map */ 100 size_t mmapsz; /* size of region to mmap */ 101 char *getln_buffer; /* space for getln buffer */ 102 ssize_t getln_buflen; /* length of allocated space */ 103 char *errorbuf; /* no dynamic allocation allowed */ 104 bozo_consts_t consts; /* various constants */ 105 } bozohttpd_t; 106 107 /* bozo_httpreq_t */ 108 typedef struct bozo_httpreq_t { 109 bozohttpd_t *hr_httpd; 110 int hr_method; 111 #define HTTP_GET 0x01 112 #define HTTP_POST 0x02 113 #define HTTP_HEAD 0x03 114 #define HTTP_OPTIONS 0x04 /* not supported */ 115 #define HTTP_PUT 0x05 /* not supported */ 116 #define HTTP_DELETE 0x06 /* not supported */ 117 #define HTTP_TRACE 0x07 /* not supported */ 118 #define HTTP_CONNECT 0x08 /* not supported */ 119 const char *hr_methodstr; 120 char *hr_virthostname; /* server name (if not identical 121 to hr_httpd->virthostname) */ 122 char *hr_file; 123 char *hr_oldfile; /* if we added an index_html */ 124 char *hr_query; 125 const char *hr_proto; 126 const char *hr_content_type; 127 const char *hr_content_length; 128 const char *hr_allow; 129 const char *hr_host; /* HTTP/1.1 Host: */ 130 const char *hr_referrer; 131 const char *hr_range; 132 const char *hr_if_modified_since; 133 const char *hr_accept_encoding; 134 int hr_have_range; 135 off_t hr_first_byte_pos; 136 off_t hr_last_byte_pos; 137 /*const*/ char *hr_remotehost; 138 /*const*/ char *hr_remoteaddr; 139 /*const*/ char *hr_serverport; 140 #ifdef DO_HTPASSWD 141 /*const*/ char *hr_authrealm; 142 /*const*/ char *hr_authuser; 143 /*const*/ char *hr_authpass; 144 #endif 145 SIMPLEQ_HEAD(, bozoheaders) hr_headers; 146 int hr_nheaders; 147 } bozo_httpreq_t; 148 149 /* helper to access the "active" host name from a httpd/request pair */ 150 #define BOZOHOST(HTTPD,REQUEST) ((REQUEST)->hr_virthostname ? \ 151 (REQUEST)->hr_virthostname : \ 152 (HTTPD)->virthostname) 153 154 /* structure to hold string based (name, value) pairs with preferences */ 155 typedef struct bozoprefs_t { 156 unsigned size; /* size of the two arrays */ 157 unsigned c; /* # of entries in arrays */ 158 char **name; /* names of each entry */ 159 char **value; /* values for the name entries */ 160 } bozoprefs_t; 161 162 /* write in upto 64KiB chunks, and mmap in upto 64MiB chunks */ 163 #define BOZO_WRSZ (64 * 1024) 164 #define BOZO_MMAPSZ (BOZO_WRSZ * 1024) 165 166 /* debug flags */ 167 #define DEBUG_NORMAL 1 168 #define DEBUG_FAT 2 169 #define DEBUG_OBESE 3 170 #define DEBUG_EXPLODING 4 171 172 #define strornull(x) ((x) ? (x) : "<null>") 173 174 #if defined(__GNUC__) && __GNUC__ >= 3 175 #define BOZO_PRINTFLIKE(x,y) __attribute__((__format__(__printf__, x,y))) 176 #define BOZO_DEAD __attribute__((__noreturn__)) 177 #endif 178 179 #ifndef NO_DEBUG 180 void debug__(bozohttpd_t *, int, const char *, ...) BOZO_PRINTFLIKE(3, 4); 181 #define debug(x) debug__ x 182 #else 183 #define debug(x) 184 #endif /* NO_DEBUG */ 185 186 void bozo_warn(bozohttpd_t *, const char *, ...) 187 BOZO_PRINTFLIKE(2, 3); 188 void bozo_err(bozohttpd_t *, int, const char *, ...) 189 BOZO_PRINTFLIKE(3, 4) 190 BOZO_DEAD; 191 int bozo_http_error(bozohttpd_t *, int, bozo_httpreq_t *, const char *); 192 193 int bozo_check_special_files(bozo_httpreq_t *, const char *); 194 char *bozo_http_date(char *, size_t); 195 void bozo_print_header(bozo_httpreq_t *, struct stat *, const char *, const char *); 196 char *bozo_escape_rfc3986(bozohttpd_t *httpd, const char *url); 197 char *bozo_escape_html(bozohttpd_t *httpd, const char *url); 198 199 char *bozodgetln(bozohttpd_t *, int, ssize_t *, ssize_t (*)(bozohttpd_t *, int, void *, size_t)); 200 char *bozostrnsep(char **, const char *, ssize_t *); 201 202 void *bozomalloc(bozohttpd_t *, size_t); 203 void *bozorealloc(bozohttpd_t *, void *, size_t); 204 char *bozostrdup(bozohttpd_t *, const char *); 205 206 /* ssl-bozo.c */ 207 #ifdef NO_SSL_SUPPORT 208 #define bozo_ssl_set_opts(w, x, y) do { /* nothing */ } while (0) 209 #define bozo_ssl_init(x) do { /* nothing */ } while (0) 210 #define bozo_ssl_accept(x) do { /* nothing */ } while (0) 211 #define bozo_ssl_destroy(x) do { /* nothing */ } while (0) 212 #else 213 void bozo_ssl_set_opts(bozohttpd_t *, const char *, const char *); 214 void bozo_ssl_init(bozohttpd_t *); 215 void bozo_ssl_accept(bozohttpd_t *); 216 void bozo_ssl_destroy(bozohttpd_t *); 217 #endif 218 219 220 /* auth-bozo.c */ 221 #ifdef DO_HTPASSWD 222 int bozo_auth_check(bozo_httpreq_t *, const char *); 223 void bozo_auth_cleanup(bozo_httpreq_t *); 224 int bozo_auth_check_headers(bozo_httpreq_t *, char *, char *, ssize_t); 225 int bozo_auth_check_special_files(bozo_httpreq_t *, const char *); 226 void bozo_auth_check_401(bozo_httpreq_t *, int); 227 void bozo_auth_cgi_setenv(bozo_httpreq_t *, char ***); 228 int bozo_auth_cgi_count(bozo_httpreq_t *); 229 #else 230 #define bozo_auth_check(x, y) 0 231 #define bozo_auth_cleanup(x) do { /* nothing */ } while (0) 232 #define bozo_auth_check_headers(y, z, a, b) 0 233 #define bozo_auth_check_special_files(x, y) 0 234 #define bozo_auth_check_401(x, y) do { /* nothing */ } while (0) 235 #define bozo_auth_cgi_setenv(x, y) do { /* nothing */ } while (0) 236 #define bozo_auth_cgi_count(x) 0 237 #endif /* DO_HTPASSWD */ 238 239 240 /* cgi-bozo.c */ 241 #ifdef NO_CGIBIN_SUPPORT 242 #define bozo_process_cgi(h) 0 243 #else 244 void bozo_cgi_setbin(bozohttpd_t *, const char *); 245 void bozo_setenv(bozohttpd_t *, const char *, const char *, char **); 246 int bozo_process_cgi(bozo_httpreq_t *); 247 void bozo_add_content_map_cgi(bozohttpd_t *, const char *, const char *); 248 #endif /* NO_CGIBIN_SUPPORT */ 249 250 251 /* daemon-bozo.c */ 252 #ifdef NO_DAEMON_MODE 253 #define bozo_daemon_init(x) do { /* nothing */ } while (0) 254 #define bozo_daemon_fork(x) 0 255 #define bozo_daemon_closefds(x) do { /* nothing */ } while (0) 256 #else 257 void bozo_daemon_init(bozohttpd_t *); 258 int bozo_daemon_fork(bozohttpd_t *); 259 void bozo_daemon_closefds(bozohttpd_t *); 260 #endif /* NO_DAEMON_MODE */ 261 262 263 /* tilde-luzah-bozo.c */ 264 #ifdef NO_USER_SUPPORT 265 #define bozo_user_transform(a, c) 0 266 #else 267 int bozo_user_transform(bozo_httpreq_t *, int *); 268 #endif /* NO_USER_SUPPORT */ 269 270 271 /* dir-index-bozo.c */ 272 #ifdef NO_DIRINDEX_SUPPORT 273 #define bozo_dir_index(a, b, c) 0 274 #else 275 int bozo_dir_index(bozo_httpreq_t *, const char *, int); 276 #endif /* NO_DIRINDEX_SUPPORT */ 277 278 279 /* content-bozo.c */ 280 const char *bozo_content_type(bozo_httpreq_t *, const char *); 281 const char *bozo_content_encoding(bozo_httpreq_t *, const char *); 282 bozo_content_map_t *bozo_match_content_map(bozohttpd_t *, const char *, int); 283 bozo_content_map_t *bozo_get_content_map(bozohttpd_t *, const char *); 284 #ifndef NO_DYNAMIC_CONTENT 285 void bozo_add_content_map_mime(bozohttpd_t *, const char *, const char *, const char *, const char *); 286 #endif 287 288 /* I/O */ 289 int bozo_printf(bozohttpd_t *, const char *, ...) BOZO_PRINTFLIKE(2, 3);; 290 ssize_t bozo_read(bozohttpd_t *, int, void *, size_t); 291 ssize_t bozo_write(bozohttpd_t *, int, const void *, size_t); 292 int bozo_flush(bozohttpd_t *, FILE *); 293 294 /* misc */ 295 int bozo_init_httpd(bozohttpd_t *); 296 int bozo_init_prefs(bozoprefs_t *); 297 int bozo_set_defaults(bozohttpd_t *, bozoprefs_t *); 298 int bozo_setup(bozohttpd_t *, bozoprefs_t *, const char *, const char *); 299 bozo_httpreq_t *bozo_read_request(bozohttpd_t *); 300 void bozo_process_request(bozo_httpreq_t *); 301 void bozo_clean_request(bozo_httpreq_t *); 302 303 /* variables */ 304 int bozo_set_pref(bozoprefs_t *, const char *, const char *); 305 char *bozo_get_pref(bozoprefs_t *, const char *); 306 307 #endif /* BOZOHTTOPD_H_ */ 308
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