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.
18 #include <sys/socket.h>
25 #include <libubox/ustream.h>
26 #include <libubox/ustream-ssl.h>
27 #include <libubox/usock.h>
28 #include <libubox/blobmsg.h>
31 #include "uclient-utils.h"
32 #include "uclient-backend.h"
52 HTTP_STATE_HEADERS_SENT
,
53 HTTP_STATE_REQUEST_DONE
,
54 HTTP_STATE_RECV_HEADERS
,
59 static const char * const request_types
[__REQ_MAX
] = {
64 [REQ_DELETE
] = "DELETE",
70 const struct ustream_ssl_ops
*ssl_ops
;
71 struct ustream_ssl_ctx
*ssl_ctx
;
74 struct ustream_fd ufd
;
75 struct ustream_ssl ussl
;
77 struct uloop_timeout disconnect_t
;
80 bool ssl_require_validation
;
83 bool connection_close
;
85 enum request_type req_type
;
86 enum http_state state
;
88 enum auth_type auth_type
;
98 struct blob_buf headers
;
108 static const char * const uclient_http_prefix
[] = {
109 [PREFIX_HTTP
] = "http://",
110 [PREFIX_HTTPS
] = "https://",
111 [__PREFIX_MAX
] = NULL
114 static int uclient_http_connect(struct uclient
*cl
);
116 static int uclient_do_connect(struct uclient_http
*uh
, const char *port
)
121 if (uh
->uc
.url
->port
)
122 port
= uh
->uc
.url
->port
;
124 memset(&uh
->uc
.remote_addr
, 0, sizeof(uh
->uc
.remote_addr
));
126 fd
= usock_inet_timeout(USOCK_TCP
| USOCK_NONBLOCK
| uh
->usock_flags
,
127 uh
->uc
.url
->host
, port
, &uh
->uc
.remote_addr
,
128 uh
->uc
.timeout_msecs
);
132 fcntl(fd
, F_SETFL
, fcntl(fd
, F_GETFL
) | O_NONBLOCK
);
133 ustream_fd_init(&uh
->ufd
, fd
);
135 sl
= sizeof(uh
->uc
.local_addr
);
136 memset(&uh
->uc
.local_addr
, 0, sl
);
137 getsockname(fd
, &uh
->uc
.local_addr
.sa
, &sl
);
142 static void uclient_http_disconnect(struct uclient_http
*uh
)
144 uloop_timeout_cancel(&uh
->disconnect_t
);
149 ustream_free(&uh
->ussl
.stream
);
150 ustream_free(&uh
->ufd
.stream
);
151 close(uh
->ufd
.fd
.fd
);
155 static void uclient_http_free_url_state(struct uclient
*cl
)
157 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
159 uh
->auth_type
= AUTH_TYPE_UNKNOWN
;
162 uclient_http_disconnect(uh
);
165 static void uclient_http_error(struct uclient_http
*uh
, int code
)
167 uh
->state
= HTTP_STATE_ERROR
;
169 ustream_state_change(uh
->us
);
170 uclient_backend_set_error(&uh
->uc
, code
);
173 static void uclient_http_request_disconnect(struct uclient
*cl
)
175 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
181 uh
->disconnect
= true;
182 uloop_timeout_set(&uh
->disconnect_t
, 1);
185 static void uclient_notify_eof(struct uclient_http
*uh
)
187 struct ustream
*us
= uh
->us
;
193 if (!us
->eof
&& !us
->write_error
)
196 if (ustream_pending_data(us
, false))
200 if (uh
->content_length
< 0 && uh
->read_chunked
>= 0)
201 uh
->uc
.data_eof
= true;
203 uclient_backend_set_eof(&uh
->uc
);
205 if (uh
->connection_close
)
206 uclient_http_request_disconnect(&uh
->uc
);
209 static void uclient_http_reset_state(struct uclient_http
*uh
)
212 uclient_backend_reset_state(&uh
->uc
);
213 uh
->read_chunked
= -1;
214 uh
->content_length
= -1;
216 uh
->disconnect
= false;
217 uh
->connection_close
= false;
218 uh
->state
= HTTP_STATE_INIT
;
220 if (uh
->auth_type
== AUTH_TYPE_UNKNOWN
&& !uh
->uc
.url
->auth
)
221 uh
->auth_type
= AUTH_TYPE_NONE
;
224 static void uclient_http_init_request(struct uclient_http
*uh
)
227 uclient_http_reset_state(uh
);
228 blob_buf_init(&uh
->meta
, 0);
231 static enum auth_type
232 uclient_http_update_auth_type(struct uclient_http
*uh
)
235 return AUTH_TYPE_NONE
;
237 if (!strncasecmp(uh
->auth_str
, "basic", 5))
238 return AUTH_TYPE_BASIC
;
240 if (!strncasecmp(uh
->auth_str
, "digest", 6))
241 return AUTH_TYPE_DIGEST
;
243 return AUTH_TYPE_NONE
;
246 static void uclient_http_process_headers(struct uclient_http
*uh
)
249 HTTP_HDR_TRANSFER_ENCODING
,
251 HTTP_HDR_CONTENT_LENGTH
,
255 static const struct blobmsg_policy hdr_policy
[__HTTP_HDR_MAX
] = {
256 #define hdr(_name) { .name = _name, .type = BLOBMSG_TYPE_STRING }
257 [HTTP_HDR_TRANSFER_ENCODING
] = hdr("transfer-encoding"),
258 [HTTP_HDR_CONNECTION
] = hdr("connection"),
259 [HTTP_HDR_CONTENT_LENGTH
] = hdr("content-length"),
260 [HTTP_HDR_AUTH
] = hdr("www-authenticate"),
263 struct blob_attr
*tb
[__HTTP_HDR_MAX
];
264 struct blob_attr
*cur
;
266 blobmsg_parse(hdr_policy
, __HTTP_HDR_MAX
, tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
268 cur
= tb
[HTTP_HDR_TRANSFER_ENCODING
];
269 if (cur
&& strstr(blobmsg_data(cur
), "chunked"))
270 uh
->read_chunked
= 0;
272 cur
= tb
[HTTP_HDR_CONNECTION
];
273 if (cur
&& strstr(blobmsg_data(cur
), "close"))
274 uh
->connection_close
= true;
276 cur
= tb
[HTTP_HDR_CONTENT_LENGTH
];
278 uh
->content_length
= strtoul(blobmsg_data(cur
), NULL
, 10);
280 cur
= tb
[HTTP_HDR_AUTH
];
283 uh
->auth_str
= strdup(blobmsg_data(cur
));
286 uh
->auth_type
= uclient_http_update_auth_type(uh
);
289 static bool uclient_request_supports_body(enum request_type req_type
)
302 uclient_http_add_auth_basic(struct uclient_http
*uh
)
304 struct uclient_url
*url
= uh
->uc
.url
;
305 int auth_len
= strlen(url
->auth
);
311 auth_buf
= alloca(base64_len(auth_len
) + 1);
312 base64_encode(url
->auth
, auth_len
, auth_buf
);
313 ustream_printf(uh
->us
, "Authorization: Basic %s\r\n", auth_buf
);
316 static char *digest_unquote_sep(char **str
)
318 char *cur
= *str
+ 1;
350 static char *digest_sep(char **str
)
355 next
= strchr(*str
, ',');
360 *str
+= strlen(*str
);
366 static bool strmatch(char **str
, const char *prefix
)
368 int len
= strlen(prefix
);
370 if (strncmp(*str
, prefix
, len
) != 0 || (*str
)[len
] != '=')
378 get_cnonce(char *dest
)
384 f
= fopen("/dev/urandom", "r");
386 n
= fread(&val
, sizeof(val
), 1, f
);
392 bin_to_hex(dest
, &val
, sizeof(val
));
395 static void add_field(char **buf
, int *ofs
, int *len
, const char *name
, const char *val
)
397 int available
= *len
- *ofs
;
405 required
= strlen(name
) + 4 + strlen(val
) * 2;
406 if (required
> available
)
407 *len
+= required
- available
+ 64;
409 *buf
= realloc(*buf
, *len
);
414 cur
+= sprintf(cur
, ", %s=\"", name
);
416 while ((next
= strchr(val
, '"'))) {
418 memcpy(cur
, val
, next
- val
);
422 cur
+= sprintf(cur
, "\\\"");
426 cur
+= sprintf(cur
, "%s\"", val
);
431 uclient_http_add_auth_digest(struct uclient_http
*uh
)
433 struct uclient_url
*url
= uh
->uc
.url
;
434 const char *realm
= NULL
, *opaque
= NULL
;
435 const char *user
, *password
;
444 struct http_digest_data data
= {
446 .cnonce
= cnonce_str
,
450 len
= strlen(uh
->auth_str
) + 1;
455 strcpy(buf
, uh
->auth_str
);
462 const char **dest
= NULL
;
465 while (*next
&& isspace(*next
))
468 if (strmatch(&next
, "realm"))
470 else if (strmatch(&next
, "qop"))
472 else if (strmatch(&next
, "nonce"))
474 else if (strmatch(&next
, "opaque"))
476 else if (strmatch(&next
, "stale") ||
477 strmatch(&next
, "algorithm") ||
478 strmatch(&next
, "auth-param")) {
481 } else if (strmatch(&next
, "domain") ||
482 strmatch(&next
, "qop-options"))
489 *dest
= digest_unquote_sep(&next
);
492 if (!realm
|| !data
.qop
|| !data
.nonce
)
495 sprintf(nc_str
, "%08x", uh
->nc
++);
496 get_cnonce(cnonce_str
);
499 data
.uri
= url
->location
;
500 data
.method
= request_types
[uh
->req_type
];
502 password
= strchr(url
->auth
, ':');
506 len
= password
- url
->auth
;
510 user_buf
= alloca(len
+ 1);
511 strncpy(user_buf
, url
->auth
, len
);
520 http_digest_calculate_auth_hash(ahash
, user
, realm
, password
);
521 http_digest_calculate_response(hash
, &data
);
527 add_field(&buf
, &ofs
, &len
, "username", user
);
528 add_field(&buf
, &ofs
, &len
, "realm", realm
);
529 add_field(&buf
, &ofs
, &len
, "nonce", data
.nonce
);
530 add_field(&buf
, &ofs
, &len
, "uri", data
.uri
);
531 add_field(&buf
, &ofs
, &len
, "cnonce", data
.cnonce
);
532 add_field(&buf
, &ofs
, &len
, "response", hash
);
534 add_field(&buf
, &ofs
, &len
, "opaque", opaque
);
536 ustream_printf(uh
->us
, "Authorization: Digest nc=%s, qop=%s%s\r\n", data
.nc
, data
.qop
, buf
);
541 uclient_http_add_auth_header(struct uclient_http
*uh
)
543 if (!uh
->uc
.url
->auth
)
546 switch (uh
->auth_type
) {
547 case AUTH_TYPE_UNKNOWN
:
550 case AUTH_TYPE_BASIC
:
551 uclient_http_add_auth_basic(uh
);
553 case AUTH_TYPE_DIGEST
:
554 uclient_http_add_auth_digest(uh
);
560 uclient_http_send_headers(struct uclient_http
*uh
)
562 struct uclient_url
*url
= uh
->uc
.url
;
563 struct blob_attr
*cur
;
564 enum request_type req_type
= uh
->req_type
;
567 if (uh
->state
>= HTTP_STATE_HEADERS_SENT
)
570 if (uh
->uc
.proxy_url
)
571 url
= uh
->uc
.proxy_url
;
573 ustream_printf(uh
->us
,
576 request_types
[req_type
],
577 url
->location
, url
->host
,
578 url
->port
? ":" : "",
579 url
->port
? url
->port
: "");
581 blobmsg_for_each_attr(cur
, uh
->headers
.head
, rem
)
582 ustream_printf(uh
->us
, "%s: %s\r\n", blobmsg_name(cur
), (char *) blobmsg_data(cur
));
584 if (uclient_request_supports_body(uh
->req_type
))
585 ustream_printf(uh
->us
, "Transfer-Encoding: chunked\r\n");
587 uclient_http_add_auth_header(uh
);
589 ustream_printf(uh
->us
, "\r\n");
591 uh
->state
= HTTP_STATE_HEADERS_SENT
;
594 static void uclient_http_headers_complete(struct uclient_http
*uh
)
596 enum auth_type auth_type
= uh
->auth_type
;
597 int seq
= uh
->uc
.seq
;
599 uh
->state
= HTTP_STATE_RECV_DATA
;
600 uh
->uc
.meta
= uh
->meta
.head
;
601 uclient_http_process_headers(uh
);
603 if (auth_type
== AUTH_TYPE_UNKNOWN
&& uh
->uc
.status_code
== 401 &&
604 (uh
->req_type
== REQ_HEAD
|| uh
->req_type
== REQ_GET
)) {
605 uclient_http_connect(&uh
->uc
);
606 uclient_http_send_headers(uh
);
607 uh
->state
= HTTP_STATE_REQUEST_DONE
;
611 if (uh
->uc
.cb
->header_done
)
612 uh
->uc
.cb
->header_done(&uh
->uc
);
614 if (uh
->eof
|| seq
!= uh
->uc
.seq
)
617 if (uh
->req_type
== REQ_HEAD
|| uh
->uc
.status_code
== 204) {
619 uclient_notify_eof(uh
);
623 static void uclient_parse_http_line(struct uclient_http
*uh
, char *data
)
628 if (uh
->state
== HTTP_STATE_REQUEST_DONE
) {
637 code
= strsep(&data
, " ");
641 uh
->uc
.status_code
= strtoul(code
, &sep
, 10);
645 uh
->state
= HTTP_STATE_RECV_HEADERS
;
650 uclient_http_headers_complete(uh
);
654 sep
= strchr(data
, ':');
660 for (name
= data
; *name
; name
++)
661 *name
= tolower(*name
);
664 while (isspace(*sep
))
667 blobmsg_add_string(&uh
->meta
, name
, sep
);
671 uh
->uc
.status_code
= 400;
673 uclient_notify_eof(uh
);
676 static void __uclient_notify_read(struct uclient_http
*uh
)
678 struct uclient
*uc
= &uh
->uc
;
679 unsigned int seq
= uh
->seq
;
683 if (uh
->state
< HTTP_STATE_REQUEST_DONE
|| uh
->state
== HTTP_STATE_ERROR
)
686 data
= ustream_get_read_buf(uh
->us
, &len
);
690 if (uh
->state
< HTTP_STATE_RECV_DATA
) {
695 sep
= strchr(data
, '\n');
700 if (sep
> data
&& sep
[-1] == '\r')
703 /* Check for multi-line HTTP headers */
708 if (isspace(*next
) && *next
!= '\r' && *next
!= '\n') {
717 cur_len
= next
- data
;
718 uclient_parse_http_line(uh
, data
);
722 ustream_consume(uh
->us
, cur_len
);
728 data
= ustream_get_read_buf(uh
->us
, &len
);
729 } while (data
&& uh
->state
< HTTP_STATE_RECV_DATA
);
738 if (uh
->state
== HTTP_STATE_RECV_DATA
) {
739 /* Now it's uclient user turn to read some data */
740 uloop_timeout_cancel(&uc
->connection_timeout
);
742 if (uc
->cb
->data_read
)
743 uc
->cb
->data_read(uc
);
747 static void __uclient_notify_write(struct uclient_http
*uh
)
749 struct uclient
*uc
= &uh
->uc
;
751 if (uc
->cb
->data_sent
)
752 uc
->cb
->data_sent(uc
);
755 static void uclient_notify_read(struct ustream
*us
, int bytes
)
757 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
759 __uclient_notify_read(uh
);
762 static void uclient_notify_write(struct ustream
*us
, int bytes
)
764 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
766 __uclient_notify_write(uh
);
769 static void uclient_notify_state(struct ustream
*us
)
771 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
773 if (uh
->ufd
.stream
.write_error
) {
774 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
777 uclient_notify_eof(uh
);
780 static int uclient_setup_http(struct uclient_http
*uh
)
782 struct ustream
*us
= &uh
->ufd
.stream
;
788 us
->string_data
= true;
789 us
->notify_state
= uclient_notify_state
;
790 us
->notify_read
= uclient_notify_read
;
791 us
->notify_write
= uclient_notify_write
;
793 ret
= uclient_do_connect(uh
, "80");
795 return UCLIENT_ERROR_CONNECT
;
800 static void uclient_ssl_notify_read(struct ustream
*us
, int bytes
)
802 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
804 __uclient_notify_read(uh
);
807 static void uclient_ssl_notify_write(struct ustream
*us
, int bytes
)
809 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
811 __uclient_notify_write(uh
);
814 static void uclient_ssl_notify_state(struct ustream
*us
)
816 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
818 uclient_notify_eof(uh
);
821 static void uclient_ssl_notify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
823 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
825 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
828 static void uclient_ssl_notify_verify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
830 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
832 if (!uh
->ssl_require_validation
)
835 uclient_http_error(uh
, UCLIENT_ERROR_SSL_INVALID_CERT
);
838 static void uclient_ssl_notify_connected(struct ustream_ssl
*ssl
)
840 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
842 if (!uh
->ssl_require_validation
)
845 if (!uh
->ussl
.valid_cn
)
846 uclient_http_error(uh
, UCLIENT_ERROR_SSL_CN_MISMATCH
);
849 static int uclient_setup_https(struct uclient_http
*uh
)
851 struct ustream
*us
= &uh
->ussl
.stream
;
858 return UCLIENT_ERROR_MISSING_SSL_CONTEXT
;
860 ret
= uclient_do_connect(uh
, "443");
862 return UCLIENT_ERROR_CONNECT
;
864 us
->string_data
= true;
865 us
->notify_state
= uclient_ssl_notify_state
;
866 us
->notify_read
= uclient_ssl_notify_read
;
867 us
->notify_write
= uclient_ssl_notify_write
;
868 uh
->ussl
.notify_error
= uclient_ssl_notify_error
;
869 uh
->ussl
.notify_verify_error
= uclient_ssl_notify_verify_error
;
870 uh
->ussl
.notify_connected
= uclient_ssl_notify_connected
;
871 uh
->ussl
.server_name
= uh
->uc
.url
->host
;
872 uh
->ssl_ops
->init(&uh
->ussl
, &uh
->ufd
.stream
, uh
->ssl_ctx
, false);
873 uh
->ssl_ops
->set_peer_cn(&uh
->ussl
, uh
->uc
.url
->host
);
878 static int uclient_http_connect(struct uclient
*cl
)
880 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
883 if (!cl
->eof
|| uh
->disconnect
|| uh
->connection_close
)
884 uclient_http_disconnect(uh
);
886 uclient_http_init_request(uh
);
891 uh
->ssl
= cl
->url
->prefix
== PREFIX_HTTPS
;
894 ret
= uclient_setup_https(uh
);
896 ret
= uclient_setup_http(uh
);
901 static void uclient_http_disconnect_cb(struct uloop_timeout
*timeout
)
903 struct uclient_http
*uh
= container_of(timeout
, struct uclient_http
, disconnect_t
);
905 uclient_http_disconnect(uh
);
908 static struct uclient
*uclient_http_alloc(void)
910 struct uclient_http
*uh
;
912 uh
= calloc_a(sizeof(*uh
));
913 uh
->disconnect_t
.cb
= uclient_http_disconnect_cb
;
914 blob_buf_init(&uh
->headers
, 0);
919 static void uclient_http_free_ssl_ctx(struct uclient_http
*uh
)
925 static void uclient_http_free(struct uclient
*cl
)
927 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
929 uclient_http_free_url_state(cl
);
930 uclient_http_free_ssl_ctx(uh
);
931 blob_buf_free(&uh
->headers
);
932 blob_buf_free(&uh
->meta
);
937 uclient_http_set_request_type(struct uclient
*cl
, const char *type
)
939 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 for (i
= 0; i
< ARRAY_SIZE(request_types
); i
++) {
949 if (strcmp(request_types
[i
], type
) != 0)
960 uclient_http_reset_headers(struct uclient
*cl
)
962 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
964 blob_buf_init(&uh
->headers
, 0);
970 uclient_http_set_header(struct uclient
*cl
, const char *name
, const char *value
)
972 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
974 if (cl
->backend
!= &uclient_backend_http
)
977 if (uh
->state
> HTTP_STATE_INIT
)
980 blobmsg_add_string(&uh
->headers
, name
, value
);
985 uclient_http_send_data(struct uclient
*cl
, const char *buf
, unsigned int len
)
987 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
989 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
992 uclient_http_send_headers(uh
);
995 ustream_printf(uh
->us
, "%X\r\n", len
);
996 ustream_write(uh
->us
, buf
, len
, false);
997 ustream_printf(uh
->us
, "\r\n");
1004 uclient_http_request_done(struct uclient
*cl
)
1006 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1008 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
1011 uclient_http_send_headers(uh
);
1012 if (uclient_request_supports_body(uh
->req_type
))
1013 ustream_printf(uh
->us
, "0\r\n\r\n");
1014 uh
->state
= HTTP_STATE_REQUEST_DONE
;
1020 uclient_http_read(struct uclient
*cl
, char *buf
, unsigned int len
)
1022 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1024 char *data
, *data_end
;
1026 if (uh
->state
< HTTP_STATE_RECV_DATA
|| !uh
->us
)
1029 data
= ustream_get_read_buf(uh
->us
, &read_len
);
1030 if (!data
|| !read_len
)
1033 data_end
= data
+ read_len
;
1036 if (uh
->read_chunked
== 0) {
1039 if (data
[0] == '\r' && data
[1] == '\n') {
1044 sep
= strstr(data
, "\r\n");
1049 uh
->read_chunked
= strtoul(data
, NULL
, 16);
1051 read_len
+= sep
+ 2 - data
;
1054 if (!uh
->read_chunked
) {
1056 uh
->uc
.data_eof
= true;
1060 if (len
> data_end
- data
)
1061 len
= data_end
- data
;
1063 if (uh
->read_chunked
>= 0) {
1064 if (len
> uh
->read_chunked
)
1065 len
= uh
->read_chunked
;
1067 uh
->read_chunked
-= len
;
1068 } else if (uh
->content_length
>= 0) {
1069 if (len
> uh
->content_length
)
1070 len
= uh
->content_length
;
1072 uh
->content_length
-= len
;
1073 if (!uh
->content_length
) {
1075 uh
->uc
.data_eof
= true;
1081 memcpy(buf
, data
, len
);
1085 ustream_consume(uh
->us
, read_len
);
1087 uclient_notify_eof(uh
);
1089 /* Now that we consumed something and if this isn't EOF, start timer again */
1090 if (!uh
->uc
.eof
&& !cl
->connection_timeout
.pending
)
1091 uloop_timeout_set(&cl
->connection_timeout
, cl
->timeout_msecs
);
1096 int uclient_http_redirect(struct uclient
*cl
)
1098 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1099 struct blobmsg_policy location
= {
1101 .type
= BLOBMSG_TYPE_STRING
,
1103 struct uclient_url
*url
= cl
->url
;
1104 struct blob_attr
*tb
;
1106 if (cl
->backend
!= &uclient_backend_http
)
1109 switch (cl
->status_code
) {
1118 blobmsg_parse(&location
, 1, &tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
1122 url
= uclient_get_url_location(url
, blobmsg_data(tb
));
1128 if (uclient_http_connect(cl
))
1131 uclient_http_request_done(cl
);
1136 int uclient_http_set_ssl_ctx(struct uclient
*cl
, const struct ustream_ssl_ops
*ops
,
1137 struct ustream_ssl_ctx
*ctx
, bool require_validation
)
1139 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1141 if (cl
->backend
!= &uclient_backend_http
)
1144 uclient_http_free_url_state(cl
);
1146 uclient_http_free_ssl_ctx(uh
);
1149 uh
->ssl_require_validation
= !!ctx
&& require_validation
;
1154 int uclient_http_set_address_family(struct uclient
*cl
, int af
)
1156 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1158 if (cl
->backend
!= &uclient_backend_http
)
1163 uh
->usock_flags
= USOCK_IPV4ONLY
;
1166 uh
->usock_flags
= USOCK_IPV6ONLY
;
1169 uh
->usock_flags
= 0;
1176 const struct uclient_backend uclient_backend_http
= {
1177 .prefix
= uclient_http_prefix
,
1179 .alloc
= uclient_http_alloc
,
1180 .free
= uclient_http_free
,
1181 .connect
= uclient_http_connect
,
1182 .disconnect
= uclient_http_request_disconnect
,
1183 .update_url
= uclient_http_free_url_state
,
1184 .update_proxy_url
= uclient_http_free_url_state
,
1186 .read
= uclient_http_read
,
1187 .write
= uclient_http_send_data
,
1188 .request
= uclient_http_request_done
,