package/uhttpd/src/uhttpd.h

   1 /*
   2  * uhttpd - Tiny single-threaded httpd - Main header
   3  *
   4  *   Copyright (C) 2010 Jo-Philipp Wich <xm@subsignal.org>
   5  *
   6  *  Licensed under the Apache License, Version 2.0 (the "License");
   7  *  you may not use this file except in compliance with the License.
   8  *  You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  *  Unless required by applicable law or agreed to in writing, software
  13  *  distributed under the License is distributed on an "AS IS" BASIS,
  14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  *  See the License for the specific language governing permissions and
  16  *  limitations under the License.
  17  */
  18
  19 #ifndef _UHTTPD_
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25 #include <signal.h>
  26 #include <sys/types.h>
  27 #include <sys/socket.h>
  28 #include <sys/select.h>
  29 #include <sys/wait.h>
  30 #include <netinet/in.h>
  31 #include <arpa/inet.h>
  32 #include <linux/limits.h>
  33 #include <netdb.h>
  34 #include <ctype.h>
  35 #include <errno.h>
  36 #include <dlfcn.h>
  37
  38
  39 #ifdef HAVE_LUA
  40 #include <lua.h>
  41 #endif
  42
  43 #ifdef HAVE_TLS
  44 #include <openssl/ssl.h>
  45 #endif
  46
  47
  48 #define UH_LIMIT_MSGHEAD        4096
  49 #define UH_LIMIT_HEADERS        64
  50
  51 #define UH_LIMIT_CLIENTS        64
  52
  53 #define UH_HTTP_MSG_GET         0
  54 #define UH_HTTP_MSG_HEAD        1
  55 #define UH_HTTP_MSG_POST        2
  56
  57 struct listener;
  58 struct client;
  59 struct interpreter;
  60 struct http_request;
  61
  62 struct config {
  63         char docroot[PATH_MAX];
  64         char *realm;
  65         char *file;
  66         char *index_file;
  67         char *error_handler;
  68         int no_symlinks;
  69         int no_dirlists;
  70         int network_timeout;
  71         int rfc1918_filter;
  72 #ifdef HAVE_CGI
  73         char *cgi_prefix;
  74 #endif
  75 #ifdef HAVE_LUA
  76         char *lua_prefix;
  77         char *lua_handler;
  78         lua_State *lua_state;
  79         lua_State * (*lua_init) (const char *handler);
  80         void (*lua_close) (lua_State *L);
  81         void (*lua_request) (struct client *cl, struct http_request *req, lua_State *L);
  82 #endif
  83 #if defined(HAVE_CGI) || defined(HAVE_LUA)
  84         int script_timeout;
  85 #endif
  86 #ifdef HAVE_TLS
  87         char *cert;
  88         char *key;
  89         SSL_CTX *tls;
  90         SSL_CTX * (*tls_init) (void);
  91         int (*tls_cert) (SSL_CTX *c, const char *file);
  92         int (*tls_key) (SSL_CTX *c, const char *file);
  93         void (*tls_free) (struct listener *l);
  94         void (*tls_accept) (struct client *c);
  95         void (*tls_close) (struct client *c);
  96         int (*tls_recv) (struct client *c, void *buf, int len);
  97         int (*tls_send) (struct client *c, void *buf, int len);
  98 #endif
  99 };
 100
 101 struct listener {
 102         int socket;
 103         struct sockaddr_in6 addr;
 104         struct config *conf;
 105 #ifdef HAVE_TLS
 106         SSL_CTX *tls;
 107 #endif
 108         struct listener *next;
 109 };
 110
 111 struct client {
 112         int socket;
 113         int peeklen;
 114         char peekbuf[UH_LIMIT_MSGHEAD];
 115         struct listener *server;
 116         struct sockaddr_in6 servaddr;
 117         struct sockaddr_in6 peeraddr;
 118 #ifdef HAVE_TLS
 119         SSL *tls;
 120 #endif
 121         struct client *next;
 122 };
 123
 124 struct auth_realm {
 125         char path[PATH_MAX];
 126         char user[32];
 127         char pass[128];
 128         struct auth_realm *next;
 129 };
 130
 131 struct http_request {
 132         int     method;
 133         float version;
 134         int redirect_status;
 135         char *url;
 136         char *headers[UH_LIMIT_HEADERS];
 137         struct auth_realm *realm;
 138 };
 139
 140 struct http_response {
 141         int statuscode;
 142         char *statusmsg;
 143         char *headers[UH_LIMIT_HEADERS];
 144 };
 145
 146 #ifdef HAVE_CGI
 147 struct interpreter {
 148         char path[PATH_MAX];
 149         char extn[32];
 150         struct interpreter *next;
 151 };
 152 #endif
 153
 154 #endif
 155