bozohttpd.h revision 1.1.1.7
1 /* $eterna: bozohttpd.h,v 1.31 2010/05/10 14:36:37 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2010 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer and 14 * dedication in the documentation and/or other materials provided 15 * with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30 #ifndef BOZOHTTOPD_H_ 31 #define BOZOHTTOPD_H_ 1 32 33 #include <sys/stat.h> 34 35 #include <stdio.h> 36 37 #include "queue.h" 38 39 /* lots of "const" but gets free()'ed etc at times, sigh */ 40 41 /* headers */ 42 typedef struct bozoheaders { 43 /*const*/ char *h_header; 44 /*const*/ char *h_value; /* this gets free()'ed etc at times */ 45 SIMPLEQ_ENTRY(bozoheaders) h_next; 46 } bozoheaders_t; 47 48 typedef struct bozo_content_map_t { 49 const char *name; /* postfix of file */ 50 size_t namelen; /* length of postfix */ 51 const char *type; /* matching content-type */ 52 const char *encoding; /* matching content-encoding */ 53 const char *encoding11; /* matching content-encoding (HTTP/1.1) */ 54 const char *cgihandler; /* optional CGI handler */ 55 } bozo_content_map_t; 56 57 /* this struct holds the bozo constants */ 58 typedef struct bozo_consts_t { 59 const char *http_09; /* "HTTP/0.9" */ 60 const char *http_10; /* "HTTP/1.0" */ 61 const char *http_11; /* "HTTP/1.1" */ 62 const char *text_plain; /* "text/plain" */ 63 } bozo_consts_t; 64 65 /* this structure encapsulates all the bozo flags and control vars */ 66 typedef struct bozohttpd_t { 67 char *rootdir; /* root directory */ 68 char *username; /* username to switch to */ 69 int numeric; /* avoid gethostby*() */ 70 char *virtbase; /* virtual directory base */ 71 int unknown_slash; /* unknown vhosts go to normal slashdir */ 72 int untrustedref; /* make sure referrer = me unless url = / */ 73 int logstderr; /* log to stderr (even if not tty) */ 74 int background; /* drop into daemon mode */ 75 int foreground; /* keep daemon mode in foreground */ 76 size_t page_size; /* page size */ 77 char *slashdir; /* www slash directory */ 78 char *bindport; /* bind port; default "http" */ 79 char *bindaddress; /* address for binding - INADDR_ANY */ 80 int debug; /* debugging level */ 81 char *virthostname; /* my name */ 82 const char *server_software;/* our brand :-) */ 83 const char *index_html; /* our home page */ 84 const char *public_html; /* ~user/public_html page */ 85 int enable_users; /* enable public_html */ 86 int *sock; /* bound sockets */ 87 int nsock; /* number of above */ 88 struct pollfd *fds; /* current poll fd set */ 89 int request_times; /* # times a request was processed */ 90 int dir_indexing; /* handle directories */ 91 int hide_dots; /* hide .* */ 92 int process_cgi; /* use the cgi handler */ 93 char *cgibin; /* cgi-bin directory */ 94 void *sslinfo; /* pointer to ssl struct */ 95 int dynamic_content_map_size;/* size of dyn cont map */ 96 bozo_content_map_t *dynamic_content_map;/* dynamic content map */ 97 size_t mmapsz; /* size of region to mmap */ 98 char *getln_buffer; /* space for getln buffer */ 99 ssize_t getln_buflen; /* length of allocated space */ 100 char *errorbuf; /* no dynamic allocation allowed */ 101 bozo_consts_t consts; /* various constants */ 102 } bozohttpd_t; 103 104 /* bozo_httpreq_t */ 105 typedef struct bozo_httpreq_t { 106 bozohttpd_t *hr_httpd; 107 int hr_method; 108 #define HTTP_GET 0x01 109 #define HTTP_POST 0x02 110 #define HTTP_HEAD 0x03 111 #define HTTP_OPTIONS 0x04 /* not supported */ 112 #define HTTP_PUT 0x05 /* not supported */ 113 #define HTTP_DELETE 0x06 /* not supported */ 114 #define HTTP_TRACE 0x07 /* not supported */ 115 #define HTTP_CONNECT 0x08 /* not supported */ 116 const char *hr_methodstr; 117 char *hr_file; 118 char *hr_query; 119 const char *hr_proto; 120 const char *hr_content_type; 121 const char *hr_content_length; 122 const char *hr_allow; 123 const char *hr_host; /* HTTP/1.1 Host: */ 124 const char *hr_referrer; 125 const char *hr_range; 126 const char *hr_if_modified_since; 127 int hr_have_range; 128 off_t hr_first_byte_pos; 129 off_t hr_last_byte_pos; 130 /*const*/ char *hr_remotehost; 131 /*const*/ char *hr_remoteaddr; 132 /*const*/ char *hr_serverport; 133 #ifdef DO_HTPASSWD 134 /*const*/ char *hr_authrealm; 135 /*const*/ char *hr_authuser; 136 /*const*/ char *hr_authpass; 137 #endif 138 SIMPLEQ_HEAD(, bozoheaders) hr_headers; 139 int hr_nheaders; 140 } bozo_httpreq_t; 141 142 /* structure to hold string based (name, value) pairs with preferences */ 143 typedef struct bozoprefs_t { 144 unsigned size; /* size of the two arrays */ 145 unsigned c; /* # of entries in arrays */ 146 char **name; /* names of each entry */ 147 char **value; /* values for the name entries */ 148 } bozoprefs_t; 149 150 /* write in upto 64KiB chunks, and mmap in upto 64MiB chunks */ 151 #define BOZO_WRSZ (64 * 1024) 152 #define BOZO_MMAPSZ (BOZO_WRSZ * 1024) 153 154 /* debug flags */ 155 #define DEBUG_NORMAL 1 156 #define DEBUG_FAT 2 157 #define DEBUG_OBESE 3 158 #define DEBUG_EXPLODING 4 159 160 #define strornull(x) ((x) ? (x) : "<null>") 161 162 #ifdef DEBUG 163 void debug__(bozohttpd_t *, int, const char *, ...) 164 __attribute__((__format__(__printf__, 3, 4))); 165 #define debug(x) debug__ x 166 #else 167 #define debug(x) 168 #endif /* DEBUG */ 169 170 void bozo_warn(bozohttpd_t *, const char *, ...) 171 __attribute__((__format__(__printf__, 2, 3))); 172 void bozo_err(bozohttpd_t *, int, const char *, ...) 173 __attribute__((__format__(__printf__, 3, 4))) 174 __attribute__((__noreturn__)); 175 int bozo_http_error(bozohttpd_t *, int, bozo_httpreq_t *, const char *) 176 __attribute__((__noreturn__)); 177 178 int bozo_check_special_files(bozo_httpreq_t *, const char *); 179 char *bozo_http_date(char *, size_t); 180 void bozo_print_header(bozo_httpreq_t *, struct stat *, const char *, const char *); 181 182 char *bozodgetln(bozohttpd_t *, int, ssize_t *, ssize_t (*)(bozohttpd_t *, int, void *, size_t)); 183 char *bozostrnsep(char **, const char *, ssize_t *); 184 185 void *bozomalloc(bozohttpd_t *, size_t); 186 void *bozorealloc(bozohttpd_t *, void *, size_t); 187 char *bozostrdup(bozohttpd_t *, const char *); 188 189 /* ssl-bozo.c */ 190 #ifdef NO_SSL_SUPPORT 191 #define bozo_ssl_set_opts(w, x, y) /* nothing */ 192 #define bozo_ssl_init(x) /* nothing */ 193 #define bozo_ssl_accept(x) /* nothing */ 194 #define bozo_ssl_destroy(x) /* nothing */ 195 #else 196 extern void bozo_ssl_set_opts(bozohttpd_t *, const char *, const char *); 197 extern void bozo_ssl_init(bozohttpd_t *); 198 extern void bozo_ssl_accept(bozohttpd_t *); 199 extern void bozo_ssl_destroy(bozohttpd_t *); 200 #endif 201 202 203 /* auth-bozo.c */ 204 #ifdef DO_HTPASSWD 205 extern int bozo_auth_check(bozo_httpreq_t *, const char *); 206 extern void bozo_auth_cleanup(bozo_httpreq_t *); 207 extern int bozo_auth_check_headers(bozo_httpreq_t *, char *, char *, ssize_t); 208 extern int bozo_auth_check_special_files(bozo_httpreq_t *, const char *); 209 extern void bozo_auth_check_401(bozo_httpreq_t *, int); 210 extern void bozo_auth_cgi_setenv(bozo_httpreq_t *, char ***); 211 extern int bozo_auth_cgi_count(bozo_httpreq_t *); 212 #else 213 #define bozo_auth_check(x, y) 0 214 #define bozo_auth_cleanup(x) /* nothing */ 215 #define bozo_auth_check_headers(y, z, a, b) 0 216 #define bozo_auth_check_special_files(x, y) 0 217 #define bozo_auth_check_401(x, y) /* nothing */ 218 #define bozo_auth_cgi_setenv(x, y) /* nothing */ 219 #define bozo_auth_cgi_count(x) 0 220 #endif /* DO_HTPASSWD */ 221 222 223 /* cgi-bozo.c */ 224 #ifdef NO_CGIBIN_SUPPORT 225 #define bozo_process_cgi(h, r) 0 226 #else 227 extern void bozo_cgi_setbin(bozohttpd_t *, const char *); 228 extern void bozo_setenv(bozohttpd_t *, const char *, const char *, char **); 229 extern int bozo_process_cgi(bozo_httpreq_t *); 230 extern void bozo_add_content_map_cgi(bozohttpd_t *, const char *, const char *); 231 #endif /* NO_CGIBIN_SUPPORT */ 232 233 234 /* daemon-bozo.c */ 235 #ifdef NO_DAEMON_MODE 236 #define bozo_daemon_init(x) /* nothing */ 237 #define bozo_daemon_fork(x) /* nothing */ 238 #define bozo_daemon_closefds() /* nothing */ 239 #else 240 extern void bozo_daemon_init(bozohttpd_t *); 241 extern void bozo_daemon_fork(bozohttpd_t *); 242 extern void bozo_daemon_closefds(bozohttpd_t *); 243 #endif /* NO_DAEMON_MODE */ 244 245 246 /* tilde-luzah-bozo.c */ 247 #ifdef NO_USER_SUPPORT 248 #define bozo_user_transform(a, b, c) 0 249 #else 250 int bozo_user_transform(bozo_httpreq_t *, int *); 251 #endif /* NO_USER_SUPPORT */ 252 253 254 /* dir-index-bozo.c */ 255 #ifdef NO_DIRINDEX_SUPPORT 256 #define bozo_dir_index(a, b, c, d) 0 257 #else 258 int bozo_dir_index(bozo_httpreq_t *, const char *, int); 259 #endif /* NO_DIRINDEX_SUPPORT */ 260 261 262 /* content-bozo.c */ 263 extern const char *bozo_content_type(bozo_httpreq_t *, const char *); 264 extern const char *bozo_content_encoding(bozo_httpreq_t *, const char *); 265 extern bozo_content_map_t *bozo_match_content_map(bozohttpd_t *, const char *, int); 266 extern bozo_content_map_t *bozo_get_content_map(bozohttpd_t *, const char *); 267 #ifndef NO_DYNAMIC_CONTENT 268 void bozo_add_content_map_mime(bozohttpd_t *, const char *, const char *, const char *, const char *); 269 #endif 270 271 /* I/O */ 272 int bozo_printf(bozohttpd_t *, const char *, ...); 273 ssize_t bozo_read(bozohttpd_t *, int, void *, size_t); 274 ssize_t bozo_write(bozohttpd_t *, int, const void *, size_t); 275 int bozo_flush(bozohttpd_t *, FILE *); 276 277 /* misc */ 278 int bozo_init_httpd(bozohttpd_t *); 279 int bozo_init_prefs(bozoprefs_t *); 280 int bozo_set_defaults(bozohttpd_t *, bozoprefs_t *); 281 int bozo_setup(bozohttpd_t *, bozoprefs_t *, const char *, const char *); 282 bozo_httpreq_t *bozo_read_request(bozohttpd_t *); 283 void bozo_process_request(bozo_httpreq_t *); 284 void bozo_clean_request(bozo_httpreq_t *); 285 286 /* variables */ 287 int bozo_set_pref(bozoprefs_t *, const char *, const char *); 288 char *bozo_get_pref(bozoprefs_t *, const char *); 289 290 #endif /* BOZOHTTOPD_H_ */ 291
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