2 * uclient - ustream based protocol client library
4 * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 #include <libubox/ustream.h>
25 #include <libubox/ustream-ssl.h>
26 #include <libubox/usock.h>
27 #include <libubox/blobmsg.h>
30 #include "uclient-utils.h"
31 #include "uclient-backend.h"
51 HTTP_STATE_HEADERS_SENT
,
52 HTTP_STATE_REQUEST_DONE
,
53 HTTP_STATE_RECV_HEADERS
,
58 static const char * const request_types
[__REQ_MAX
] = {
63 [REQ_DELETE
] = "DELETE",
69 const struct ustream_ssl_ops
*ssl_ops
;
70 struct ustream_ssl_ctx
*ssl_ctx
;
73 struct ustream_fd ufd
;
74 struct ustream_ssl ussl
;
76 struct uloop_timeout disconnect_t
;
79 bool ssl_require_validation
;
82 bool connection_close
;
84 enum request_type req_type
;
85 enum http_state state
;
87 enum auth_type auth_type
;
95 struct blob_buf headers
;
105 static const char * const uclient_http_prefix
[] = {
106 [PREFIX_HTTP
] = "http://",
107 [PREFIX_HTTPS
] = "https://",
108 [__PREFIX_MAX
] = NULL
111 static int uclient_do_connect(struct uclient_http
*uh
, const char *port
)
116 if (uh
->uc
.url
->port
)
117 port
= uh
->uc
.url
->port
;
119 memset(&uh
->uc
.remote_addr
, 0, sizeof(uh
->uc
.remote_addr
));
121 fd
= usock_inet(USOCK_TCP
, uh
->uc
.url
->host
, port
, &uh
->uc
.remote_addr
);
125 fcntl(fd
, F_SETFL
, fcntl(fd
, F_GETFL
) | O_NONBLOCK
);
126 ustream_fd_init(&uh
->ufd
, fd
);
128 sl
= sizeof(uh
->uc
.local_addr
);
129 memset(&uh
->uc
.local_addr
, 0, sl
);
130 getsockname(fd
, &uh
->uc
.local_addr
.sa
, &sl
);
135 static void uclient_http_disconnect(struct uclient_http
*uh
)
137 uloop_timeout_cancel(&uh
->disconnect_t
);
142 ustream_free(&uh
->ussl
.stream
);
143 ustream_free(&uh
->ufd
.stream
);
144 close(uh
->ufd
.fd
.fd
);
148 static void uclient_http_free_url_state(struct uclient
*cl
)
150 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
152 uh
->auth_type
= AUTH_TYPE_UNKNOWN
;
155 uclient_http_disconnect(uh
);
158 static void uclient_http_error(struct uclient_http
*uh
, int code
)
160 uh
->state
= HTTP_STATE_ERROR
;
162 ustream_state_change(uh
->us
);
163 uclient_backend_set_error(&uh
->uc
, code
);
166 static void uclient_http_request_disconnect(struct uclient
*cl
)
168 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
174 uh
->disconnect
= true;
175 uloop_timeout_set(&uh
->disconnect_t
, 1);
178 static void uclient_notify_eof(struct uclient_http
*uh
)
180 struct ustream
*us
= uh
->us
;
186 if (!us
->eof
&& !us
->write_error
)
189 if (ustream_pending_data(us
, false))
193 uclient_backend_set_eof(&uh
->uc
);
195 if (uh
->connection_close
)
196 uclient_http_request_disconnect(&uh
->uc
);
199 static void uclient_http_reset_state(struct uclient_http
*uh
)
202 uclient_backend_reset_state(&uh
->uc
);
203 uh
->read_chunked
= -1;
204 uh
->content_length
= -1;
206 uh
->disconnect
= false;
207 uh
->connection_close
= false;
208 uh
->state
= HTTP_STATE_INIT
;
210 if (uh
->auth_type
== AUTH_TYPE_UNKNOWN
&& !uh
->uc
.url
->auth
)
211 uh
->auth_type
= AUTH_TYPE_NONE
;
214 static void uclient_http_init_request(struct uclient_http
*uh
)
217 uclient_http_reset_state(uh
);
218 blob_buf_init(&uh
->meta
, 0);
221 static enum auth_type
222 uclient_http_update_auth_type(struct uclient_http
*uh
)
225 return AUTH_TYPE_NONE
;
227 if (!strncasecmp(uh
->auth_str
, "basic", 5))
228 return AUTH_TYPE_BASIC
;
230 if (!strncasecmp(uh
->auth_str
, "digest", 6))
231 return AUTH_TYPE_DIGEST
;
233 return AUTH_TYPE_NONE
;
236 static void uclient_http_process_headers(struct uclient_http
*uh
)
239 HTTP_HDR_TRANSFER_ENCODING
,
241 HTTP_HDR_CONTENT_LENGTH
,
245 static const struct blobmsg_policy hdr_policy
[__HTTP_HDR_MAX
] = {
246 #define hdr(_name) { .name = _name, .type = BLOBMSG_TYPE_STRING }
247 [HTTP_HDR_TRANSFER_ENCODING
] = hdr("transfer-encoding"),
248 [HTTP_HDR_CONNECTION
] = hdr("connection"),
249 [HTTP_HDR_CONTENT_LENGTH
] = hdr("content-length"),
250 [HTTP_HDR_AUTH
] = hdr("www-authenticate"),
253 struct blob_attr
*tb
[__HTTP_HDR_MAX
];
254 struct blob_attr
*cur
;
256 blobmsg_parse(hdr_policy
, __HTTP_HDR_MAX
, tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
258 cur
= tb
[HTTP_HDR_TRANSFER_ENCODING
];
259 if (cur
&& strstr(blobmsg_data(cur
), "chunked"))
260 uh
->read_chunked
= 0;
262 cur
= tb
[HTTP_HDR_CONNECTION
];
263 if (cur
&& strstr(blobmsg_data(cur
), "close"))
264 uh
->connection_close
= true;
266 cur
= tb
[HTTP_HDR_CONTENT_LENGTH
];
268 uh
->content_length
= strtoul(blobmsg_data(cur
), NULL
, 10);
270 cur
= tb
[HTTP_HDR_AUTH
];
273 uh
->auth_str
= strdup(blobmsg_data(cur
));
276 uh
->auth_type
= uclient_http_update_auth_type(uh
);
280 uclient_http_add_auth_basic(struct uclient_http
*uh
)
282 struct uclient_url
*url
= uh
->uc
.url
;
283 int auth_len
= strlen(url
->auth
);
289 auth_buf
= alloca(base64_len(auth_len
) + 1);
290 base64_encode(url
->auth
, auth_len
, auth_buf
);
291 ustream_printf(uh
->us
, "Authorization: Basic %s\r\n", auth_buf
);
294 static char *digest_unquote_sep(char **str
)
296 char *cur
= *str
+ 1;
328 static char *digest_sep(char **str
)
333 next
= strchr(*str
, ',');
338 *str
+= strlen(*str
);
344 static bool strmatch(char **str
, const char *prefix
)
346 int len
= strlen(prefix
);
348 if (strncmp(*str
, prefix
, len
) != 0 || (*str
)[len
] != '=')
356 get_cnonce(char *dest
)
361 f
= fopen("/dev/urandom", "r");
363 fread(&val
, sizeof(val
), 1, f
);
367 bin_to_hex(dest
, &val
, sizeof(val
));
370 static void add_field(char **buf
, int *ofs
, int *len
, const char *name
, const char *val
)
372 int available
= *len
- *ofs
;
380 required
= strlen(name
) + 4 + strlen(val
) * 2;
381 if (required
> available
)
382 *len
+= required
- available
+ 64;
384 *buf
= realloc(*buf
, *len
);
389 cur
+= sprintf(cur
, ", %s=\"", name
);
391 while ((next
= strchr(val
, '"'))) {
393 memcpy(cur
, val
, next
- val
);
397 cur
+= sprintf(cur
, "\\\"");
401 cur
+= sprintf(cur
, "%s\"", val
);
406 uclient_http_add_auth_digest(struct uclient_http
*uh
)
408 struct uclient_url
*url
= uh
->uc
.url
;
409 const char *realm
= NULL
, *opaque
= NULL
;
410 const char *user
, *password
;
419 struct http_digest_data data
= {
421 .cnonce
= cnonce_str
,
425 len
= strlen(uh
->auth_str
) + 1;
430 strcpy(buf
, uh
->auth_str
);
437 const char **dest
= NULL
;
440 while (*next
&& isspace(*next
))
443 if (strmatch(&next
, "realm"))
445 else if (strmatch(&next
, "qop"))
447 else if (strmatch(&next
, "nonce"))
449 else if (strmatch(&next
, "opaque"))
451 else if (strmatch(&next
, "stale") ||
452 strmatch(&next
, "algorithm") ||
453 strmatch(&next
, "auth-param")) {
456 } else if (strmatch(&next
, "domain") ||
457 strmatch(&next
, "qop-options"))
464 *dest
= digest_unquote_sep(&next
);
467 if (!realm
|| !data
.qop
|| !data
.nonce
)
470 sprintf(nc_str
, "%08x", uh
->nc
++);
471 get_cnonce(cnonce_str
);
474 data
.uri
= url
->location
;
475 data
.method
= request_types
[uh
->req_type
];
477 password
= strchr(url
->auth
, ':');
481 len
= password
- url
->auth
;
485 user_buf
= alloca(len
+ 1);
486 strncpy(user_buf
, url
->auth
, len
);
495 http_digest_calculate_auth_hash(ahash
, user
, realm
, password
);
496 http_digest_calculate_response(hash
, &data
);
502 add_field(&buf
, &ofs
, &len
, "username", user
);
503 add_field(&buf
, &ofs
, &len
, "realm", realm
);
504 add_field(&buf
, &ofs
, &len
, "nonce", data
.nonce
);
505 add_field(&buf
, &ofs
, &len
, "uri", data
.uri
);
506 add_field(&buf
, &ofs
, &len
, "cnonce", data
.cnonce
);
507 add_field(&buf
, &ofs
, &len
, "response", hash
);
509 add_field(&buf
, &ofs
, &len
, "opaque", opaque
);
511 ustream_printf(uh
->us
, "Authorization: Digest nc=%s, qop=%s%s\r\n", data
.nc
, data
.qop
, buf
);
516 uclient_http_add_auth_header(struct uclient_http
*uh
)
518 if (!uh
->uc
.url
->auth
)
521 switch (uh
->auth_type
) {
522 case AUTH_TYPE_UNKNOWN
:
525 case AUTH_TYPE_BASIC
:
526 uclient_http_add_auth_basic(uh
);
528 case AUTH_TYPE_DIGEST
:
529 uclient_http_add_auth_digest(uh
);
535 uclient_http_send_headers(struct uclient_http
*uh
)
537 struct uclient_url
*url
= uh
->uc
.url
;
538 struct blob_attr
*cur
;
539 enum request_type req_type
= uh
->req_type
;
542 if (uh
->state
>= HTTP_STATE_HEADERS_SENT
)
545 if (uh
->uc
.proxy_url
)
546 url
= uh
->uc
.proxy_url
;
548 ustream_printf(uh
->us
,
551 request_types
[req_type
],
552 url
->location
, url
->host
);
554 blobmsg_for_each_attr(cur
, uh
->headers
.head
, rem
)
555 ustream_printf(uh
->us
, "%s: %s\r\n", blobmsg_name(cur
), (char *) blobmsg_data(cur
));
557 if (uh
->req_type
== REQ_POST
|| uh
->req_type
== REQ_PUT
)
558 ustream_printf(uh
->us
, "Transfer-Encoding: chunked\r\n");
560 uclient_http_add_auth_header(uh
);
562 ustream_printf(uh
->us
, "\r\n");
564 uh
->state
= HTTP_STATE_HEADERS_SENT
;
567 static void uclient_http_headers_complete(struct uclient_http
*uh
)
569 enum auth_type auth_type
= uh
->auth_type
;
570 int seq
= uh
->uc
.seq
;
572 uh
->state
= HTTP_STATE_RECV_DATA
;
573 uh
->uc
.meta
= uh
->meta
.head
;
574 uclient_http_process_headers(uh
);
576 if (auth_type
== AUTH_TYPE_UNKNOWN
&& uh
->uc
.status_code
== 401 &&
577 (uh
->req_type
== REQ_HEAD
|| uh
->req_type
== REQ_GET
)) {
578 uclient_http_init_request(uh
);
579 uclient_http_send_headers(uh
);
580 uh
->state
= HTTP_STATE_REQUEST_DONE
;
584 if (uh
->uc
.cb
->header_done
)
585 uh
->uc
.cb
->header_done(&uh
->uc
);
587 if (uh
->eof
|| seq
!= uh
->uc
.seq
)
590 if (uh
->req_type
== REQ_HEAD
|| uh
->uc
.status_code
== 204) {
592 uclient_notify_eof(uh
);
596 static void uclient_parse_http_line(struct uclient_http
*uh
, char *data
)
601 if (uh
->state
== HTTP_STATE_REQUEST_DONE
) {
610 code
= strsep(&data
, " ");
614 uh
->uc
.status_code
= strtoul(code
, &sep
, 10);
618 uh
->state
= HTTP_STATE_RECV_HEADERS
;
623 uclient_http_headers_complete(uh
);
627 sep
= strchr(data
, ':');
633 for (name
= data
; *name
; name
++)
634 *name
= tolower(*name
);
637 while (isspace(*sep
))
640 blobmsg_add_string(&uh
->meta
, name
, sep
);
644 uh
->uc
.status_code
= 400;
646 uclient_notify_eof(uh
);
649 static void __uclient_notify_read(struct uclient_http
*uh
)
651 struct uclient
*uc
= &uh
->uc
;
652 unsigned int seq
= uh
->seq
;
656 if (uh
->state
< HTTP_STATE_REQUEST_DONE
|| uh
->state
== HTTP_STATE_ERROR
)
659 data
= ustream_get_read_buf(uh
->us
, &len
);
663 if (uh
->state
< HTTP_STATE_RECV_DATA
) {
668 sep
= strstr(data
, "\r\n");
672 /* Check for multi-line HTTP headers */
677 if (isspace(sep
[2]) && sep
[2] != '\r') {
685 cur_len
= sep
+ 2 - data
;
686 uclient_parse_http_line(uh
, data
);
690 ustream_consume(uh
->us
, cur_len
);
696 data
= ustream_get_read_buf(uh
->us
, &len
);
697 } while (data
&& uh
->state
< HTTP_STATE_RECV_DATA
);
706 if (uh
->state
== HTTP_STATE_RECV_DATA
) {
707 /* Now it's uclient user turn to read some data */
708 uloop_timeout_cancel(&uc
->connection_timeout
);
710 if (uc
->cb
->data_read
)
711 uc
->cb
->data_read(uc
);
715 static void __uclient_notify_write(struct uclient_http
*uh
)
717 struct uclient
*uc
= &uh
->uc
;
719 if (uc
->cb
->data_sent
)
720 uc
->cb
->data_sent(uc
);
723 static void uclient_notify_read(struct ustream
*us
, int bytes
)
725 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
727 __uclient_notify_read(uh
);
730 static void uclient_notify_write(struct ustream
*us
, int bytes
)
732 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
734 __uclient_notify_write(uh
);
737 static void uclient_notify_state(struct ustream
*us
)
739 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
741 if (uh
->ufd
.stream
.write_error
) {
742 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
745 uclient_notify_eof(uh
);
748 static int uclient_setup_http(struct uclient_http
*uh
)
750 struct ustream
*us
= &uh
->ufd
.stream
;
756 us
->string_data
= true;
757 us
->notify_state
= uclient_notify_state
;
758 us
->notify_read
= uclient_notify_read
;
759 us
->notify_write
= uclient_notify_write
;
761 ret
= uclient_do_connect(uh
, "80");
763 return UCLIENT_ERROR_CONNECT
;
768 static void uclient_ssl_notify_read(struct ustream
*us
, int bytes
)
770 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
772 __uclient_notify_read(uh
);
775 static void uclient_ssl_notify_write(struct ustream
*us
, int bytes
)
777 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
779 __uclient_notify_write(uh
);
782 static void uclient_ssl_notify_state(struct ustream
*us
)
784 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
786 uclient_notify_eof(uh
);
789 static void uclient_ssl_notify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
791 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
793 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
796 static void uclient_ssl_notify_verify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
798 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
800 if (!uh
->ssl_require_validation
)
803 uclient_http_error(uh
, UCLIENT_ERROR_SSL_INVALID_CERT
);
806 static void uclient_ssl_notify_connected(struct ustream_ssl
*ssl
)
808 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
810 if (!uh
->ssl_require_validation
)
813 if (!uh
->ussl
.valid_cn
)
814 uclient_http_error(uh
, UCLIENT_ERROR_SSL_CN_MISMATCH
);
817 static int uclient_setup_https(struct uclient_http
*uh
)
819 struct ustream
*us
= &uh
->ussl
.stream
;
826 return UCLIENT_ERROR_MISSING_SSL_CONTEXT
;
828 ret
= uclient_do_connect(uh
, "443");
830 return UCLIENT_ERROR_CONNECT
;
832 us
->string_data
= true;
833 us
->notify_state
= uclient_ssl_notify_state
;
834 us
->notify_read
= uclient_ssl_notify_read
;
835 us
->notify_write
= uclient_ssl_notify_write
;
836 uh
->ussl
.notify_error
= uclient_ssl_notify_error
;
837 uh
->ussl
.notify_verify_error
= uclient_ssl_notify_verify_error
;
838 uh
->ussl
.notify_connected
= uclient_ssl_notify_connected
;
839 uh
->ussl
.server_name
= uh
->uc
.url
->host
;
840 uh
->ssl_ops
->init(&uh
->ussl
, &uh
->ufd
.stream
, uh
->ssl_ctx
, false);
841 uh
->ssl_ops
->set_peer_cn(&uh
->ussl
, uh
->uc
.url
->host
);
846 static int uclient_http_connect(struct uclient
*cl
)
848 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
851 if (!cl
->eof
|| uh
->disconnect
)
852 uclient_http_disconnect(uh
);
854 uclient_http_init_request(uh
);
859 uh
->ssl
= cl
->url
->prefix
== PREFIX_HTTPS
;
862 ret
= uclient_setup_https(uh
);
864 ret
= uclient_setup_http(uh
);
869 static void uclient_http_disconnect_cb(struct uloop_timeout
*timeout
)
871 struct uclient_http
*uh
= container_of(timeout
, struct uclient_http
, disconnect_t
);
873 uclient_http_disconnect(uh
);
876 static struct uclient
*uclient_http_alloc(void)
878 struct uclient_http
*uh
;
880 uh
= calloc_a(sizeof(*uh
));
881 uh
->disconnect_t
.cb
= uclient_http_disconnect_cb
;
882 blob_buf_init(&uh
->headers
, 0);
887 static void uclient_http_free_ssl_ctx(struct uclient_http
*uh
)
893 static void uclient_http_free(struct uclient
*cl
)
895 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
897 uclient_http_free_url_state(cl
);
898 uclient_http_free_ssl_ctx(uh
);
899 blob_buf_free(&uh
->headers
);
900 blob_buf_free(&uh
->meta
);
905 uclient_http_set_request_type(struct uclient
*cl
, const char *type
)
907 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
910 if (cl
->backend
!= &uclient_backend_http
)
913 if (uh
->state
> HTTP_STATE_INIT
)
916 for (i
= 0; i
< ARRAY_SIZE(request_types
); i
++) {
917 if (strcmp(request_types
[i
], type
) != 0)
928 uclient_http_reset_headers(struct uclient
*cl
)
930 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
932 blob_buf_init(&uh
->headers
, 0);
938 uclient_http_set_header(struct uclient
*cl
, const char *name
, const char *value
)
940 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
942 if (cl
->backend
!= &uclient_backend_http
)
945 if (uh
->state
> HTTP_STATE_INIT
)
948 blobmsg_add_string(&uh
->headers
, name
, value
);
953 uclient_http_send_data(struct uclient
*cl
, const char *buf
, unsigned int len
)
955 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
957 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
960 uclient_http_send_headers(uh
);
963 ustream_printf(uh
->us
, "%X\r\n", len
);
964 ustream_write(uh
->us
, buf
, len
, false);
965 ustream_printf(uh
->us
, "\r\n");
972 uclient_http_request_done(struct uclient
*cl
)
974 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
976 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
979 uclient_http_send_headers(uh
);
980 if (uh
->req_type
== REQ_POST
|| uh
->req_type
== REQ_PUT
)
981 ustream_printf(uh
->us
, "0\r\n\r\n");
982 uh
->state
= HTTP_STATE_REQUEST_DONE
;
988 uclient_http_read(struct uclient
*cl
, char *buf
, unsigned int len
)
990 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
992 char *data
, *data_end
;
994 if (uh
->state
< HTTP_STATE_RECV_DATA
|| !uh
->us
)
997 data
= ustream_get_read_buf(uh
->us
, &read_len
);
998 if (!data
|| !read_len
)
1001 data_end
= data
+ read_len
;
1004 if (uh
->read_chunked
== 0) {
1007 if (data
[0] == '\r' && data
[1] == '\n') {
1012 sep
= strstr(data
, "\r\n");
1017 uh
->read_chunked
= strtoul(data
, NULL
, 16);
1019 read_len
+= sep
+ 2 - data
;
1022 if (!uh
->read_chunked
) {
1024 uh
->uc
.data_eof
= true;
1028 if (len
> data_end
- data
)
1029 len
= data_end
- data
;
1031 if (uh
->read_chunked
>= 0) {
1032 if (len
> uh
->read_chunked
)
1033 len
= uh
->read_chunked
;
1035 uh
->read_chunked
-= len
;
1036 } else if (uh
->content_length
>= 0) {
1037 if (len
> uh
->content_length
)
1038 len
= uh
->content_length
;
1040 uh
->content_length
-= len
;
1041 if (!uh
->content_length
) {
1043 uh
->uc
.data_eof
= true;
1049 memcpy(buf
, data
, len
);
1053 ustream_consume(uh
->us
, read_len
);
1055 uclient_notify_eof(uh
);
1057 /* Now that we consumed something and if this isn't EOF, start timer again */
1058 if (!uh
->uc
.eof
&& !cl
->connection_timeout
.pending
)
1059 uloop_timeout_set(&cl
->connection_timeout
, cl
->timeout_msecs
);
1064 bool uclient_http_redirect(struct uclient
*cl
)
1066 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1067 struct blobmsg_policy location
= {
1069 .type
= BLOBMSG_TYPE_STRING
,
1071 struct uclient_url
*url
= cl
->url
;
1072 struct blob_attr
*tb
;
1074 if (cl
->backend
!= &uclient_backend_http
)
1077 switch (cl
->status_code
) {
1086 blobmsg_parse(&location
, 1, &tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
1090 url
= uclient_get_url(blobmsg_data(tb
), url
->auth
);
1096 uclient_http_connect(cl
);
1097 uclient_http_request_done(cl
);
1102 int uclient_http_set_ssl_ctx(struct uclient
*cl
, const struct ustream_ssl_ops
*ops
,
1103 struct ustream_ssl_ctx
*ctx
, bool require_validation
)
1105 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1107 if (cl
->backend
!= &uclient_backend_http
)
1110 uclient_http_free_url_state(cl
);
1112 uclient_http_free_ssl_ctx(uh
);
1115 uh
->ssl_require_validation
= !!ctx
&& require_validation
;
1120 const struct uclient_backend uclient_backend_http
= {
1121 .prefix
= uclient_http_prefix
,
1123 .alloc
= uclient_http_alloc
,
1124 .free
= uclient_http_free
,
1125 .connect
= uclient_http_connect
,
1126 .disconnect
= uclient_http_request_disconnect
,
1127 .update_url
= uclient_http_free_url_state
,
1128 .update_proxy_url
= uclient_http_free_url_state
,
1130 .read
= uclient_http_read
,
1131 .write
= uclient_http_send_data
,
1132 .request
= uclient_http_request_done
,