1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
* uhttpd - Tiny single-threaded httpd - Main header
*
* Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UHTTPD_H
#define __UHTTPD_H
#include <netinet/in.h>
#include <limits.h>
#include <dirent.h>
#include <libubox/list.h>
#include <libubox/uloop.h>
#include <libubox/ustream.h>
#include <libubox/blob.h>
#include <libubox/utils.h>
#include "utils.h"
#define UH_LIMIT_CLIENTS 64
#define __enum_header(_name) HDR_##_name,
#define __blobmsg_header(_name) [HDR_##_name] = { .name = #_name, .type = BLOBMSG_TYPE_STRING },
struct client;
struct config {
const char *docroot;
const char *realm;
const char *file;
const char *error_handler;
const char *cgi_prefix;
const char *cgi_path;
int no_symlinks;
int no_dirlists;
int network_timeout;
int rfc1918_filter;
int tcp_keepalive;
int max_requests;
int http_keepalive;
int script_timeout;
};
struct auth_realm {
struct list_head list;
const char *path;
const char *user;
const char *pass;
};
enum http_method {
UH_HTTP_MSG_GET,
UH_HTTP_MSG_POST,
UH_HTTP_MSG_HEAD,
};
enum http_version {
UH_HTTP_VER_0_9,
UH_HTTP_VER_1_0,
UH_HTTP_VER_1_1,
};
struct http_request {
enum http_method method;
enum http_version version;
int redirect_status;
const char *url;
const struct auth_realm *realm;
};
enum client_state {
CLIENT_STATE_INIT,
CLIENT_STATE_HEADER,
CLIENT_STATE_DATA,
CLIENT_STATE_DONE,
CLIENT_STATE_CLOSE,
};
struct interpreter {
struct list_head list;
const char *path;
const char *ext;
};
struct path_info {
const char *root;
const char *phys;
const char *name;
const char *info;
const char *query;
const char *auth;
bool redirected;
struct stat stat;
const struct interpreter *ip;
};
struct env_var {
const char *name;
const char *value;
};
struct relay {
struct ustream_fd sfd;
struct uloop_process proc;
struct client *cl;
bool process_done;
int ret;
int header_ofs;
void (*header_cb)(struct relay *r, const char *name, const char *value);
void (*header_end)(struct relay *r);
void (*close)(struct relay *r, int ret);
};
struct dispatch_handler {
struct list_head list;
bool (*check_url)(const char *url);
bool (*check_path)(struct path_info *pi, const char *url);
void (*handle_request)(struct client *cl, const char *url, struct path_info *pi);
};
struct uh_addr {
uint8_t family;
uint16_t port;
union {
struct in_addr in;
struct in6_addr in6;
};
};
struct client {
struct list_head list;
int id;
struct ustream *us;
struct ustream_fd sfd;
#ifdef HAVE_TLS
struct ustream_ssl stream_ssl;
#endif
struct uloop_timeout timeout;
enum client_state state;
struct http_request request;
struct uh_addr srv_addr, peer_addr;
struct blob_buf hdr;
struct {
void (*write_cb)(struct client *cl);
void (*close_fds)(struct client *cl);
void (*free)(struct client *cl);
union {
struct {
struct blob_attr **hdr;
int fd;
} file;
struct {
struct blob_buf hdr;
struct relay r;
int status_code;
char *status_msg;
} proc;
};
} dispatch;
};
extern char uh_buf[4096];
extern int n_clients;
extern struct config conf;
extern const char * const http_versions[];
extern const char * const http_methods[];
extern struct dispatch_handler cgi_dispatch;
void uh_index_add(const char *filename);
void uh_accept_client(int fd);
void uh_unblock_listeners(void);
void uh_setup_listeners(void);
int uh_socket_bind(const char *host, const char *port, bool tls);
bool uh_use_chunked(struct client *cl);
void uh_chunk_write(struct client *cl, const void *data, int len);
void uh_chunk_vprintf(struct client *cl, const char *format, va_list arg);
void __printf(2, 3)
uh_chunk_printf(struct client *cl, const char *format, ...);
void uh_chunk_eof(struct client *cl);
void uh_request_done(struct client *cl);
void uh_http_header(struct client *cl, int code, const char *summary);
void __printf(4, 5)
uh_client_error(struct client *cl, int code, const char *summary, const char *fmt, ...);
void uh_handle_request(struct client *cl);
void uh_auth_add(const char *path, const char *user, const char *pass);
bool uh_auth_check(struct client *cl, struct path_info *pi);
void uh_close_listen_fds(void);
void uh_close_fds(void);
void uh_interpreter_add(const char *ext, const char *path);
void uh_dispatch_add(struct dispatch_handler *d);
void uh_relay_open(struct client *cl, struct relay *r, int fd, int pid);
void uh_relay_close(struct relay *r, int ret);
void uh_relay_free(struct relay *r);
struct env_var *uh_get_process_vars(struct client *cl, struct path_info *pi);
bool uh_create_process(struct client *cl, struct path_info *pi,
void (*cb)(struct client *cl, struct path_info *pi, int fd));
#endif
|
