2 * uhttpd - Tiny single-threaded httpd
4 * Copyright (C) 2010-2013 Jo-Philipp Wich <xm@subsignal.org>
5 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 #include <netinet/in.h>
27 #include <libubox/list.h>
28 #include <libubox/uloop.h>
29 #include <libubox/ustream.h>
30 #include <libubox/blob.h>
31 #include <libubox/utils.h>
34 #include <json-c/json.h>
37 #include <libubox/ustream-ssl.h>
42 #define UH_LIMIT_CLIENTS 64
44 #define __enum_header(_name, _val) HDR_##_name,
45 #define __blobmsg_header(_name, _val) [HDR_##_name] = { .name = #_val, .type = BLOBMSG_TYPE_STRING },
53 const char *error_handler
;
54 const char *cgi_prefix
;
55 const char *cgi_docroot_path
;
57 const char *lua_handler
;
58 const char *lua_prefix
;
59 const char *ubus_prefix
;
60 const char *ubus_socket
;
66 int max_script_requests
;
75 struct list_head list
;
94 enum http_user_agent
{
106 struct http_request
{
107 enum http_method method
;
108 enum http_version version
;
109 enum http_user_agent ua
;
113 bool connection_close
;
114 bool respond_chunked
;
115 uint8_t transfer_chunked
;
116 const struct auth_realm
*realm
;
125 CLIENT_STATE_CLEANUP
,
129 struct list_head list
;
143 const struct interpreter
*ip
;
152 struct ustream_fd sfd
;
153 struct uloop_process proc
;
154 struct uloop_timeout timeout
;
164 void (*header_cb
)(struct relay
*r
, const char *name
, const char *value
);
165 void (*header_end
)(struct relay
*r
);
166 void (*close
)(struct relay
*r
, int ret
);
169 struct dispatch_proc
{
170 struct uloop_timeout timeout
;
172 struct uloop_fd wrfd
;
178 struct dispatch_handler
{
179 struct list_head list
;
182 bool (*check_url
)(const char *url
);
183 bool (*check_path
)(struct path_info
*pi
, const char *url
);
184 void (*handle_request
)(struct client
*cl
, char *url
, struct path_info
*pi
);
188 struct dispatch_ubus
{
189 struct ubus_request req
;
191 struct uloop_timeout timeout
;
192 struct json_tokener
*jstok
;
193 struct json_object
*jsobj
;
194 struct json_object
*jsobj_cur
;
208 int (*data_send
)(struct client
*cl
, const char *data
, int len
);
209 void (*data_done
)(struct client
*cl
);
210 void (*write_cb
)(struct client
*cl
);
211 void (*close_fds
)(struct client
*cl
);
212 void (*free
)(struct client
*cl
);
215 void (*req_free
)(struct client
*cl
);
221 struct blob_attr
**hdr
;
224 struct dispatch_proc proc
;
226 struct dispatch_ubus ubus
;
232 struct list_head list
;
237 struct ustream_fd sfd
;
239 struct ustream_ssl ssl
;
241 struct uloop_timeout timeout
;
244 enum client_state state
;
248 struct http_request request
;
249 struct uh_addr srv_addr
, peer_addr
;
252 struct dispatch dispatch
;
255 extern char uh_buf
[4096];
256 extern int n_clients
;
257 extern struct config conf
;
258 extern const char * const http_versions
[];
259 extern const char * const http_methods
[];
260 extern struct dispatch_handler cgi_dispatch
;
262 void uh_index_add(const char *filename
);
264 bool uh_accept_client(int fd
, bool tls
);
266 void uh_unblock_listeners(void);
267 void uh_setup_listeners(void);
268 int uh_socket_bind(const char *host
, const char *port
, bool tls
);
270 bool uh_use_chunked(struct client
*cl
);
271 void uh_chunk_write(struct client
*cl
, const void *data
, int len
);
272 void uh_chunk_vprintf(struct client
*cl
, const char *format
, va_list arg
);
275 uh_chunk_printf(struct client
*cl
, const char *format
, ...);
277 void uh_chunk_eof(struct client
*cl
);
278 void uh_request_done(struct client
*cl
);
280 void uh_http_header(struct client
*cl
, int code
, const char *summary
);
282 uh_client_error(struct client
*cl
, int code
, const char *summary
, const char *fmt
, ...);
284 void uh_handle_request(struct client
*cl
);
285 void client_poll_post_data(struct client
*cl
);
286 void uh_client_read_cb(struct client
*cl
);
287 void uh_client_notify_state(struct client
*cl
);
289 void uh_auth_add(const char *path
, const char *user
, const char *pass
);
290 bool uh_auth_check(struct client
*cl
, struct path_info
*pi
);
292 void uh_close_listen_fds(void);
293 void uh_close_fds(void);
295 void uh_interpreter_add(const char *ext
, const char *path
);
296 void uh_dispatch_add(struct dispatch_handler
*d
);
298 void uh_relay_open(struct client
*cl
, struct relay
*r
, int fd
, int pid
);
299 void uh_relay_close(struct relay
*r
, int ret
);
300 void uh_relay_free(struct relay
*r
);
301 void uh_relay_kill(struct client
*cl
, struct relay
*r
);
303 struct env_var
*uh_get_process_vars(struct client
*cl
, struct path_info
*pi
);
304 bool uh_create_process(struct client
*cl
, struct path_info
*pi
, char *url
,
305 void (*cb
)(struct client
*cl
, struct path_info
*pi
, char *url
));
307 int uh_plugin_init(const char *name
);
308 void uh_plugin_post_init(void);
310 static inline void uh_client_ref(struct client
*cl
)
315 static inline void uh_client_unref(struct client
*cl
)
320 if (cl
->state
== CLIENT_STATE_CLEANUP
)
321 ustream_state_change(cl
->us
);