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.
23 #include <libubox/ustream.h>
24 #include <libubox/ustream-ssl.h>
25 #include <libubox/usock.h>
26 #include <libubox/blobmsg.h>
29 #include "uclient-utils.h"
30 #include "uclient-backend.h"
49 HTTP_STATE_HEADERS_SENT
,
50 HTTP_STATE_REQUEST_DONE
,
51 HTTP_STATE_RECV_HEADERS
,
56 static const char * const request_types
[__REQ_MAX
] = {
66 const struct ustream_ssl_ops
*ssl_ops
;
67 struct ustream_ssl_ctx
*ssl_ctx
;
70 struct ustream_fd ufd
;
71 struct ustream_ssl ussl
;
73 struct uloop_timeout disconnect_t
;
75 bool ssl_require_validation
;
78 bool connection_close
;
80 enum request_type req_type
;
81 enum http_state state
;
83 enum auth_type auth_type
;
91 struct blob_buf headers
;
101 static const char * const uclient_http_prefix
[] = {
102 [PREFIX_HTTP
] = "http://",
103 [PREFIX_HTTPS
] = "https://",
104 [__PREFIX_MAX
] = NULL
107 static int uclient_do_connect(struct uclient_http
*uh
, const char *port
)
112 if (uh
->uc
.url
->port
)
113 port
= uh
->uc
.url
->port
;
115 fd
= usock(USOCK_TCP
| USOCK_NONBLOCK
, uh
->uc
.url
->host
, port
);
119 ustream_fd_init(&uh
->ufd
, fd
);
121 memset(&uh
->uc
.local_addr
, 0, sizeof(uh
->uc
.local_addr
));
122 memset(&uh
->uc
.remote_addr
, 0, sizeof(uh
->uc
.remote_addr
));
124 sl
= sizeof(uh
->uc
.local_addr
);
125 getsockname(fd
, &uh
->uc
.local_addr
.sa
, &sl
);
126 getpeername(fd
, &uh
->uc
.remote_addr
.sa
, &sl
);
131 static void uclient_http_disconnect(struct uclient_http
*uh
)
133 uloop_timeout_cancel(&uh
->disconnect_t
);
138 ustream_free(&uh
->ussl
.stream
);
139 ustream_free(&uh
->ufd
.stream
);
140 close(uh
->ufd
.fd
.fd
);
144 static void uclient_http_free_url_state(struct uclient
*cl
)
146 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
148 uh
->auth_type
= AUTH_TYPE_UNKNOWN
;
151 uclient_http_disconnect(uh
);
154 static void uclient_http_error(struct uclient_http
*uh
, int code
)
156 uh
->state
= HTTP_STATE_ERROR
;
158 ustream_state_change(uh
->us
);
159 uclient_backend_set_error(&uh
->uc
, code
);
162 static void uclient_notify_eof(struct uclient_http
*uh
)
164 struct ustream
*us
= uh
->us
;
170 if (!us
->eof
&& !us
->write_error
)
173 if (ustream_pending_data(us
, false))
177 uclient_backend_set_eof(&uh
->uc
);
179 if (uh
->connection_close
)
180 uclient_http_disconnect(uh
);
183 static void uclient_http_reset_state(struct uclient_http
*uh
)
185 uclient_backend_reset_state(&uh
->uc
);
186 uh
->read_chunked
= -1;
187 uh
->content_length
= -1;
189 uh
->disconnect
= false;
190 uh
->connection_close
= false;
191 uh
->state
= HTTP_STATE_INIT
;
193 if (uh
->auth_type
== AUTH_TYPE_UNKNOWN
&& !uh
->uc
.url
->auth
)
194 uh
->auth_type
= AUTH_TYPE_NONE
;
197 static void uclient_http_init_request(struct uclient_http
*uh
)
199 uclient_http_reset_state(uh
);
200 blob_buf_init(&uh
->meta
, 0);
203 static enum auth_type
204 uclient_http_update_auth_type(struct uclient_http
*uh
)
207 return AUTH_TYPE_NONE
;
209 if (!strncasecmp(uh
->auth_str
, "basic", 5))
210 return AUTH_TYPE_BASIC
;
212 if (!strncasecmp(uh
->auth_str
, "digest", 6))
213 return AUTH_TYPE_DIGEST
;
215 return AUTH_TYPE_NONE
;
218 static void uclient_http_process_headers(struct uclient_http
*uh
)
221 HTTP_HDR_TRANSFER_ENCODING
,
223 HTTP_HDR_CONTENT_LENGTH
,
227 static const struct blobmsg_policy hdr_policy
[__HTTP_HDR_MAX
] = {
228 #define hdr(_name) { .name = _name, .type = BLOBMSG_TYPE_STRING }
229 [HTTP_HDR_TRANSFER_ENCODING
] = hdr("transfer-encoding"),
230 [HTTP_HDR_CONNECTION
] = hdr("connection"),
231 [HTTP_HDR_CONTENT_LENGTH
] = hdr("content-length"),
232 [HTTP_HDR_AUTH
] = hdr("www-authenticate"),
235 struct blob_attr
*tb
[__HTTP_HDR_MAX
];
236 struct blob_attr
*cur
;
238 blobmsg_parse(hdr_policy
, __HTTP_HDR_MAX
, tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
240 cur
= tb
[HTTP_HDR_TRANSFER_ENCODING
];
241 if (cur
&& strstr(blobmsg_data(cur
), "chunked"))
242 uh
->read_chunked
= 0;
244 cur
= tb
[HTTP_HDR_CONNECTION
];
245 if (cur
&& strstr(blobmsg_data(cur
), "close"))
246 uh
->connection_close
= true;
248 cur
= tb
[HTTP_HDR_CONTENT_LENGTH
];
250 uh
->content_length
= strtoul(blobmsg_data(cur
), NULL
, 10);
252 cur
= tb
[HTTP_HDR_AUTH
];
255 uh
->auth_str
= strdup(blobmsg_data(cur
));
258 uh
->auth_type
= uclient_http_update_auth_type(uh
);
262 uclient_http_add_auth_basic(struct uclient_http
*uh
)
264 struct uclient_url
*url
= uh
->uc
.url
;
265 int auth_len
= strlen(url
->auth
);
271 auth_buf
= alloca(base64_len(auth_len
) + 1);
272 base64_encode(url
->auth
, auth_len
, auth_buf
);
273 ustream_printf(uh
->us
, "Authorization: Basic %s\r\n", auth_buf
);
276 static char *digest_unquote_sep(char **str
)
278 char *cur
= *str
+ 1;
310 static bool strmatch(char **str
, const char *prefix
)
312 int len
= strlen(prefix
);
314 if (strncmp(*str
, prefix
, len
) != 0 || (*str
)[len
] != '=')
322 get_cnonce(char *dest
)
327 f
= fopen("/dev/urandom", "r");
329 fread(&val
, sizeof(val
), 1, f
);
333 bin_to_hex(dest
, &val
, sizeof(val
));
336 static void add_field(char **buf
, int *ofs
, int *len
, const char *name
, const char *val
)
338 int available
= *len
- *ofs
;
346 required
= strlen(name
) + 4 + strlen(val
) * 2;
347 if (required
> available
)
348 *len
+= required
- available
+ 64;
350 *buf
= realloc(*buf
, *len
);
355 cur
+= sprintf(cur
, ", %s=\"", name
);
357 while ((next
= strchr(val
, '"'))) {
359 memcpy(cur
, val
, next
- val
);
363 cur
+= sprintf(cur
, "\\\"");
367 cur
+= sprintf(cur
, "%s\"", val
);
372 uclient_http_add_auth_digest(struct uclient_http
*uh
)
374 struct uclient_url
*url
= uh
->uc
.url
;
375 const char *realm
= NULL
, *opaque
= NULL
;
376 const char *user
, *password
;
385 struct http_digest_data data
= {
387 .cnonce
= cnonce_str
,
391 len
= strlen(uh
->auth_str
) + 1;
396 strcpy(buf
, uh
->auth_str
);
403 const char **dest
= NULL
;
405 while (isspace(*next
))
408 if (strmatch(&next
, "realm"))
410 else if (strmatch(&next
, "qop"))
412 else if (strmatch(&next
, "nonce"))
414 else if (strmatch(&next
, "opaque"))
419 *dest
= digest_unquote_sep(&next
);
422 if (!realm
|| !data
.qop
|| !data
.nonce
)
425 sprintf(nc_str
, "%08x", uh
->nc
++);
426 get_cnonce(cnonce_str
);
429 data
.uri
= url
->location
;
430 data
.method
= request_types
[uh
->req_type
];
432 password
= strchr(url
->auth
, ':');
436 len
= password
- url
->auth
;
440 user_buf
= alloca(len
+ 1);
441 strncpy(user_buf
, url
->auth
, len
);
450 http_digest_calculate_auth_hash(ahash
, user
, realm
, password
);
451 http_digest_calculate_response(hash
, &data
);
457 add_field(&buf
, &ofs
, &len
, "username", user
);
458 add_field(&buf
, &ofs
, &len
, "realm", realm
);
459 add_field(&buf
, &ofs
, &len
, "nonce", data
.nonce
);
460 add_field(&buf
, &ofs
, &len
, "uri", data
.uri
);
461 add_field(&buf
, &ofs
, &len
, "cnonce", data
.cnonce
);
462 add_field(&buf
, &ofs
, &len
, "response", hash
);
464 add_field(&buf
, &ofs
, &len
, "opaque", opaque
);
466 ustream_printf(uh
->us
, "Authorization: Digest nc=%s, qop=%s%s\r\n", data
.nc
, data
.qop
, buf
);
471 uclient_http_add_auth_header(struct uclient_http
*uh
)
473 if (!uh
->uc
.url
->auth
)
476 switch (uh
->auth_type
) {
477 case AUTH_TYPE_UNKNOWN
:
480 case AUTH_TYPE_BASIC
:
481 uclient_http_add_auth_basic(uh
);
483 case AUTH_TYPE_DIGEST
:
484 uclient_http_add_auth_digest(uh
);
490 uclient_http_send_headers(struct uclient_http
*uh
)
492 struct uclient_url
*url
= uh
->uc
.url
;
493 struct blob_attr
*cur
;
494 enum request_type req_type
= uh
->req_type
;
497 if (uh
->state
>= HTTP_STATE_HEADERS_SENT
)
500 if (uh
->auth_type
== AUTH_TYPE_UNKNOWN
)
503 ustream_printf(uh
->us
,
506 request_types
[req_type
],
507 url
->location
, url
->host
);
509 blobmsg_for_each_attr(cur
, uh
->headers
.head
, rem
)
510 ustream_printf(uh
->us
, "%s: %s\n", blobmsg_name(cur
), (char *) blobmsg_data(cur
));
512 if (uh
->req_type
== REQ_POST
|| uh
->req_type
== REQ_PUT
)
513 ustream_printf(uh
->us
, "Transfer-Encoding: chunked\r\n");
515 uclient_http_add_auth_header(uh
);
517 ustream_printf(uh
->us
, "\r\n");
519 uh
->state
= HTTP_STATE_HEADERS_SENT
;
522 static void uclient_http_headers_complete(struct uclient_http
*uh
)
524 enum auth_type auth_type
= uh
->auth_type
;
526 uh
->state
= HTTP_STATE_RECV_DATA
;
527 uh
->uc
.meta
= uh
->meta
.head
;
528 uclient_http_process_headers(uh
);
530 if (auth_type
== AUTH_TYPE_UNKNOWN
) {
531 uclient_http_init_request(uh
);
532 uclient_http_send_headers(uh
);
533 uh
->state
= HTTP_STATE_REQUEST_DONE
;
537 if (uh
->uc
.cb
->header_done
)
538 uh
->uc
.cb
->header_done(&uh
->uc
);
543 if (uh
->req_type
== REQ_HEAD
|| uh
->uc
.status_code
== 204) {
545 uclient_notify_eof(uh
);
549 static void uclient_parse_http_line(struct uclient_http
*uh
, char *data
)
554 if (uh
->state
== HTTP_STATE_REQUEST_DONE
) {
560 code
= strsep(&data
, " ");
564 uh
->uc
.status_code
= strtoul(code
, &sep
, 10);
568 uh
->state
= HTTP_STATE_RECV_HEADERS
;
573 uclient_http_headers_complete(uh
);
577 sep
= strchr(data
, ':');
583 for (name
= data
; *name
; name
++)
584 *name
= tolower(*name
);
587 while (isspace(*sep
))
590 blobmsg_add_string(&uh
->meta
, name
, sep
);
594 uh
->uc
.status_code
= 400;
596 uclient_notify_eof(uh
);
599 static void __uclient_notify_read(struct uclient_http
*uh
)
601 struct uclient
*uc
= &uh
->uc
;
605 if (uh
->state
< HTTP_STATE_REQUEST_DONE
|| uh
->state
== HTTP_STATE_ERROR
)
608 data
= ustream_get_read_buf(uh
->us
, &len
);
612 if (uh
->state
< HTTP_STATE_RECV_DATA
) {
617 sep
= strstr(data
, "\r\n");
621 /* Check for multi-line HTTP headers */
626 if (isspace(sep
[2]) && sep
[2] != '\r') {
634 cur_len
= sep
+ 2 - data
;
635 uclient_parse_http_line(uh
, data
);
636 ustream_consume(uh
->us
, cur_len
);
642 data
= ustream_get_read_buf(uh
->us
, &len
);
643 } while (data
&& uh
->state
< HTTP_STATE_RECV_DATA
);
652 if (uh
->state
== HTTP_STATE_RECV_DATA
&& uc
->cb
->data_read
)
653 uc
->cb
->data_read(uc
);
656 static void uclient_notify_read(struct ustream
*us
, int bytes
)
658 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
660 __uclient_notify_read(uh
);
663 static void uclient_notify_state(struct ustream
*us
)
665 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
667 uclient_notify_eof(uh
);
670 static int uclient_setup_http(struct uclient_http
*uh
)
672 struct ustream
*us
= &uh
->ufd
.stream
;
678 us
->string_data
= true;
679 us
->notify_state
= uclient_notify_state
;
680 us
->notify_read
= uclient_notify_read
;
682 ret
= uclient_do_connect(uh
, "80");
684 return UCLIENT_ERROR_CONNECT
;
689 static void uclient_ssl_notify_read(struct ustream
*us
, int bytes
)
691 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
693 __uclient_notify_read(uh
);
696 static void uclient_ssl_notify_state(struct ustream
*us
)
698 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
700 uclient_notify_eof(uh
);
703 static void uclient_ssl_notify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
705 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
707 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
710 static void uclient_ssl_notify_verify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
712 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
714 if (!uh
->ssl_require_validation
)
717 uclient_http_error(uh
, UCLIENT_ERROR_SSL_INVALID_CERT
);
720 static void uclient_ssl_notify_connected(struct ustream_ssl
*ssl
)
722 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
724 if (!uh
->ssl_require_validation
)
727 if (!uh
->ussl
.valid_cn
)
728 uclient_http_error(uh
, UCLIENT_ERROR_SSL_CN_MISMATCH
);
731 static int uclient_setup_https(struct uclient_http
*uh
)
733 struct ustream
*us
= &uh
->ussl
.stream
;
740 return UCLIENT_ERROR_MISSING_SSL_CONTEXT
;
742 ret
= uclient_do_connect(uh
, "443");
744 return UCLIENT_ERROR_CONNECT
;
746 us
->string_data
= true;
747 us
->notify_state
= uclient_ssl_notify_state
;
748 us
->notify_read
= uclient_ssl_notify_read
;
749 uh
->ussl
.notify_error
= uclient_ssl_notify_error
;
750 uh
->ussl
.notify_verify_error
= uclient_ssl_notify_verify_error
;
751 uh
->ussl
.notify_connected
= uclient_ssl_notify_connected
;
752 uh
->ssl_ops
->init(&uh
->ussl
, &uh
->ufd
.stream
, uh
->ssl_ctx
, false);
753 uh
->ssl_ops
->set_peer_cn(&uh
->ussl
, uh
->uc
.url
->host
);
758 static int uclient_http_connect(struct uclient
*cl
)
760 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
763 uclient_http_init_request(uh
);
768 uh
->ssl
= cl
->url
->prefix
== PREFIX_HTTPS
;
771 ret
= uclient_setup_https(uh
);
773 ret
= uclient_setup_http(uh
);
778 static void uclient_http_disconnect_cb(struct uloop_timeout
*timeout
)
780 struct uclient_http
*uh
= container_of(timeout
, struct uclient_http
, disconnect_t
);
782 uclient_http_disconnect(uh
);
785 static struct uclient
*uclient_http_alloc(void)
787 struct uclient_http
*uh
;
789 uh
= calloc_a(sizeof(*uh
));
790 uh
->disconnect_t
.cb
= uclient_http_disconnect_cb
;
791 blob_buf_init(&uh
->headers
, 0);
796 static void uclient_http_free_ssl_ctx(struct uclient_http
*uh
)
802 static void uclient_http_free(struct uclient
*cl
)
804 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
806 uclient_http_free_url_state(cl
);
807 uclient_http_free_ssl_ctx(uh
);
808 blob_buf_free(&uh
->headers
);
809 blob_buf_free(&uh
->meta
);
814 uclient_http_set_request_type(struct uclient
*cl
, const char *type
)
816 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
819 if (cl
->backend
!= &uclient_backend_http
)
822 if (uh
->state
> HTTP_STATE_INIT
)
825 for (i
= 0; i
< ARRAY_SIZE(request_types
); i
++) {
826 if (strcmp(request_types
[i
], type
) != 0)
837 uclient_http_reset_headers(struct uclient
*cl
)
839 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
841 blob_buf_init(&uh
->headers
, 0);
847 uclient_http_set_header(struct uclient
*cl
, const char *name
, const char *value
)
849 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
851 if (cl
->backend
!= &uclient_backend_http
)
854 if (uh
->state
> HTTP_STATE_INIT
)
857 blobmsg_add_string(&uh
->headers
, name
, value
);
862 uclient_http_send_data(struct uclient
*cl
, char *buf
, unsigned int len
)
864 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
866 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
869 uclient_http_send_headers(uh
);
872 ustream_printf(uh
->us
, "%X\r\n", len
);
873 ustream_write(uh
->us
, buf
, len
, false);
874 ustream_printf(uh
->us
, "\r\n");
881 uclient_http_request_done(struct uclient
*cl
)
883 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
885 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
888 uclient_http_send_headers(uh
);
889 if (uh
->req_type
== REQ_POST
|| uh
->req_type
== REQ_PUT
)
890 ustream_printf(uh
->us
, "0\r\n\r\n");
891 uh
->state
= HTTP_STATE_REQUEST_DONE
;
897 uclient_http_read(struct uclient
*cl
, char *buf
, unsigned int len
)
899 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
901 char *data
, *data_end
;
903 if (uh
->state
< HTTP_STATE_RECV_DATA
|| !uh
->us
)
906 data
= ustream_get_read_buf(uh
->us
, &read_len
);
907 if (!data
|| !read_len
)
910 data_end
= data
+ read_len
;
913 if (uh
->read_chunked
== 0) {
916 if (data
[0] == '\r' && data
[1] == '\n') {
921 sep
= strstr(data
, "\r\n");
926 uh
->read_chunked
= strtoul(data
, NULL
, 16);
928 read_len
+= sep
+ 2 - data
;
931 if (!uh
->read_chunked
) {
933 uh
->uc
.data_eof
= true;
937 if (len
> data_end
- data
)
938 len
= data_end
- data
;
940 if (uh
->read_chunked
>= 0) {
941 if (len
> uh
->read_chunked
)
942 len
= uh
->read_chunked
;
944 uh
->read_chunked
-= len
;
945 } else if (uh
->content_length
>= 0) {
946 if (len
> uh
->content_length
)
947 len
= uh
->content_length
;
949 uh
->content_length
-= len
;
950 if (!uh
->content_length
) {
952 uh
->uc
.data_eof
= true;
958 memcpy(buf
, data
, len
);
962 ustream_consume(uh
->us
, read_len
);
964 uclient_notify_eof(uh
);
969 bool uclient_http_redirect(struct uclient
*cl
)
971 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
972 struct blobmsg_policy location
= {
974 .type
= BLOBMSG_TYPE_STRING
,
976 struct uclient_url
*url
= cl
->url
;
977 struct blob_attr
*tb
;
979 if (cl
->backend
!= &uclient_backend_http
)
982 switch (cl
->status_code
) {
991 blobmsg_parse(&location
, 1, &tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
995 url
= uclient_get_url(blobmsg_data(tb
), url
->auth
);
1001 uclient_http_connect(cl
);
1002 uclient_http_request_done(cl
);
1007 int uclient_http_set_ssl_ctx(struct uclient
*cl
, const struct ustream_ssl_ops
*ops
,
1008 struct ustream_ssl_ctx
*ctx
, bool require_validation
)
1010 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1012 if (cl
->backend
!= &uclient_backend_http
)
1015 uclient_http_free_url_state(cl
);
1017 uclient_http_free_ssl_ctx(uh
);
1020 uh
->ssl_require_validation
= !!ctx
&& require_validation
;
1025 static void uclient_http_request_disconnect(struct uclient
*cl
)
1027 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1033 uh
->disconnect
= true;
1034 uloop_timeout_set(&uh
->disconnect_t
, 1);
1037 const struct uclient_backend uclient_backend_http
= {
1038 .prefix
= uclient_http_prefix
,
1040 .alloc
= uclient_http_alloc
,
1041 .free
= uclient_http_free
,
1042 .connect
= uclient_http_connect
,
1043 .disconnect
= uclient_http_request_disconnect
,
1044 .update_url
= uclient_http_free_url_state
,
1046 .read
= uclient_http_read
,
1047 .write
= uclient_http_send_data
,
1048 .request
= uclient_http_request_done
,