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 <netinet/tcp.h>
  32 #include <arpa/inet.h>
  33 #include <linux/limits.h>
  34 #include <netdb.h>
  35 #include <ctype.h>
  36 #include <errno.h>
  37 #include <dlfcn.h>
  38
  39
  40 #ifdef HAVE_LUA
  41 #include <lua.h>
  42 #endif
  43
  44 #ifdef HAVE_TLS
  45 #include <openssl/ssl.h>
  46 #endif
  47
  48 /* uClibc... */
  49 #ifndef SOL_TCP
  50 #define SOL_TCP 6
  51 #endif
  52
  53
  54 #define UH_LIMIT_MSGHEAD        4096
  55 #define UH_LIMIT_HEADERS        64
  56
  57 #define UH_LIMIT_CLIENTS        64
  58
  59 #define UH_HTTP_MSG_GET         0
  60 #define UH_HTTP_MSG_HEAD        1
  61 #define UH_HTTP_MSG_POST        2
  62
  63 struct listener;
  64 struct client;
  65 struct interpreter;
  66 struct http_request;
  67
  68 struct config {
  69         char docroot[PATH_MAX];
  70         char *realm;
  71         char *file;
  72         char *index_file;
  73         char *error_handler;
  74         int no_symlinks;
  75         int no_dirlists;
  76         int network_timeout;
  77         int rfc1918_filter;
  78 #ifdef HAVE_CGI
  79         char *cgi_prefix;
  80 #endif
  81 #ifdef HAVE_LUA
  82         char *lua_prefix;
  83         char *lua_handler;
  84         lua_State *lua_state;
  85         lua_State * (*lua_init) (const char *handler);
  86         void (*lua_close) (lua_State *L);
  87         void (*lua_request) (struct client *cl, struct http_request *req, lua_State *L);
  88 #endif
  89 #if defined(HAVE_CGI) || defined(HAVE_LUA)
  90         int script_timeout;
  91 #endif
  92 #ifdef HAVE_TLS
  93         char *cert;
  94         char *key;
  95         SSL_CTX *tls;
  96         SSL_CTX * (*tls_init) (void);
  97         int (*tls_cert) (SSL_CTX *c, const char *file);
  98         int (*tls_key) (SSL_CTX *c, const char *file);
  99         void (*tls_free) (struct listener *l);
 100         void (*tls_accept) (struct client *c);
 101         void (*tls_close) (struct client *c);
 102         int (*tls_recv) (struct client *c, void *buf, int len);
 103         int (*tls_send) (struct client *c, void *buf, int len);
 104 #endif
 105 };
 106
 107 struct listener {
 108         int socket;
 109         struct sockaddr_in6 addr;
 110         struct config *conf;
 111 #ifdef HAVE_TLS
 112         SSL_CTX *tls;
 113 #endif
 114         struct listener *next;
 115 };
 116
 117 struct client {
 118         int socket;
 119         int peeklen;
 120         char peekbuf[UH_LIMIT_MSGHEAD];
 121         struct listener *server;
 122         struct sockaddr_in6 servaddr;
 123         struct sockaddr_in6 peeraddr;
 124 #ifdef HAVE_TLS
 125         SSL *tls;
 126 #endif
 127         struct client *next;
 128 };
 129
 130 struct auth_realm {
 131         char path[PATH_MAX];
 132         char user[32];
 133         char pass[128];
 134         struct auth_realm *next;
 135 };
 136
 137 struct http_request {
 138         int     method;
 139         float version;
 140         int redirect_status;
 141         char *url;
 142         char *headers[UH_LIMIT_HEADERS];
 143         struct auth_realm *realm;
 144 };
 145
 146 struct http_response {
 147         int statuscode;
 148         char *statusmsg;
 149         char *headers[UH_LIMIT_HEADERS];
 150 };
 151
 152 #ifdef HAVE_CGI
 153 struct interpreter {
 154         char path[PATH_MAX];
 155         char extn[32];
 156         struct interpreter *next;
 157 };
 158 #endif
 159
 160 #endif
 161