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 uint8_t transfer_chunked;
115 const struct auth_realm *realm;
124 CLIENT_STATE_CLEANUP,
128 struct list_head list;
142 const struct interpreter *ip;
151 struct ustream_fd sfd;
152 struct uloop_process proc;
153 struct uloop_timeout timeout;
163 void (*header_cb)(struct relay *r, const char *name, const char *value);
164 void (*header_end)(struct relay *r);
165 void (*close)(struct relay *r, int ret);
168 struct dispatch_proc {
169 struct uloop_timeout timeout;
171 struct uloop_fd wrfd;
177 struct dispatch_handler {
178 struct list_head list;
181 bool (*check_url)(const char *url);
182 bool (*check_path)(struct path_info *pi, const char *url);
183 void (*handle_request)(struct client *cl, char *url, struct path_info *pi);
187 struct dispatch_ubus {
188 struct ubus_request req;
190 struct uloop_timeout timeout;
191 struct json_tokener *jstok;
192 struct json_object *jsobj;
193 struct json_object *jsobj_cur;
207 int (*data_send)(struct client *cl, const char *data, int len);
208 void (*data_done)(struct client *cl);
209 void (*write_cb)(struct client *cl);
210 void (*close_fds)(struct client *cl);
211 void (*free)(struct client *cl);
214 void (*req_free)(struct client *cl);
220 struct blob_attr **hdr;
223 struct dispatch_proc proc;
225 struct dispatch_ubus ubus;
231 struct list_head list;
236 struct ustream_fd sfd;
238 struct ustream_ssl ssl;
240 struct uloop_timeout timeout;
243 enum client_state state;
247 struct http_request request;
248 struct uh_addr srv_addr, peer_addr;
251 struct dispatch dispatch;
254 extern char uh_buf[4096];
255 extern int n_clients;
256 extern struct config conf;
257 extern const char * const http_versions[];
258 extern const char * const http_methods[];
259 extern struct dispatch_handler cgi_dispatch;
261 void uh_index_add(const char *filename);
263 bool uh_accept_client(int fd, bool tls);
265 void uh_unblock_listeners(void);
266 void uh_setup_listeners(void);
267 int uh_socket_bind(const char *host, const char *port, bool tls);
269 bool uh_use_chunked(struct client *cl);
270 void uh_chunk_write(struct client *cl, const void *data, int len);
271 void uh_chunk_vprintf(struct client *cl, const char *format, va_list arg);
274 uh_chunk_printf(struct client *cl, const char *format, ...);
276 void uh_chunk_eof(struct client *cl);
277 void uh_request_done(struct client *cl);
279 void uh_http_header(struct client *cl, int code, const char *summary);
281 uh_client_error(struct client *cl, int code, const char *summary, const char *fmt, ...);
283 void uh_handle_request(struct client *cl);
284 void client_poll_post_data(struct client *cl);
285 void uh_client_read_cb(struct client *cl);
286 void uh_client_notify_state(struct client *cl);
288 void uh_auth_add(const char *path, const char *user, const char *pass);
289 bool uh_auth_check(struct client *cl, struct path_info *pi);
291 void uh_close_listen_fds(void);
292 void uh_close_fds(void);
294 void uh_interpreter_add(const char *ext, const char *path);
295 void uh_dispatch_add(struct dispatch_handler *d);
297 void uh_relay_open(struct client *cl, struct relay *r, int fd, int pid);
298 void uh_relay_close(struct relay *r, int ret);
299 void uh_relay_free(struct relay *r);
300 void uh_relay_kill(struct client *cl, struct relay *r);
302 struct env_var *uh_get_process_vars(struct client *cl, struct path_info *pi);
303 bool uh_create_process(struct client *cl, struct path_info *pi, char *url,
304 void (*cb)(struct client *cl, struct path_info *pi, char *url));
306 int uh_plugin_init(const char *name);
307 void uh_plugin_post_init(void);
309 static inline void uh_client_ref(struct client *cl)
314 static inline void uh_client_unref(struct client *cl)
319 if (cl->state == CLIENT_STATE_CLEANUP)
320 ustream_state_change(cl->us);