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
)
383 f
= fopen("/dev/urandom", "r");
385 fread(&val
, sizeof(val
), 1, f
);
389 bin_to_hex(dest
, &val
, sizeof(val
));
392 static void add_field(char **buf
, int *ofs
, int *len
, const char *name
, const char *val
)
394 int available
= *len
- *ofs
;
402 required
= strlen(name
) + 4 + strlen(val
) * 2;
403 if (required
> available
)
404 *len
+= required
- available
+ 64;
406 *buf
= realloc(*buf
, *len
);
411 cur
+= sprintf(cur
, ", %s=\"", name
);
413 while ((next
= strchr(val
, '"'))) {
415 memcpy(cur
, val
, next
- val
);
419 cur
+= sprintf(cur
, "\\\"");
423 cur
+= sprintf(cur
, "%s\"", val
);
428 uclient_http_add_auth_digest(struct uclient_http
*uh
)
430 struct uclient_url
*url
= uh
->uc
.url
;
431 const char *realm
= NULL
, *opaque
= NULL
;
432 const char *user
, *password
;
441 struct http_digest_data data
= {
443 .cnonce
= cnonce_str
,
447 len
= strlen(uh
->auth_str
) + 1;
452 strcpy(buf
, uh
->auth_str
);
459 const char **dest
= NULL
;
462 while (*next
&& isspace(*next
))
465 if (strmatch(&next
, "realm"))
467 else if (strmatch(&next
, "qop"))
469 else if (strmatch(&next
, "nonce"))
471 else if (strmatch(&next
, "opaque"))
473 else if (strmatch(&next
, "stale") ||
474 strmatch(&next
, "algorithm") ||
475 strmatch(&next
, "auth-param")) {
478 } else if (strmatch(&next
, "domain") ||
479 strmatch(&next
, "qop-options"))
486 *dest
= digest_unquote_sep(&next
);
489 if (!realm
|| !data
.qop
|| !data
.nonce
)
492 sprintf(nc_str
, "%08x", uh
->nc
++);
493 get_cnonce(cnonce_str
);
496 data
.uri
= url
->location
;
497 data
.method
= request_types
[uh
->req_type
];
499 password
= strchr(url
->auth
, ':');
503 len
= password
- url
->auth
;
507 user_buf
= alloca(len
+ 1);
508 strncpy(user_buf
, url
->auth
, len
);
517 http_digest_calculate_auth_hash(ahash
, user
, realm
, password
);
518 http_digest_calculate_response(hash
, &data
);
524 add_field(&buf
, &ofs
, &len
, "username", user
);
525 add_field(&buf
, &ofs
, &len
, "realm", realm
);
526 add_field(&buf
, &ofs
, &len
, "nonce", data
.nonce
);
527 add_field(&buf
, &ofs
, &len
, "uri", data
.uri
);
528 add_field(&buf
, &ofs
, &len
, "cnonce", data
.cnonce
);
529 add_field(&buf
, &ofs
, &len
, "response", hash
);
531 add_field(&buf
, &ofs
, &len
, "opaque", opaque
);
533 ustream_printf(uh
->us
, "Authorization: Digest nc=%s, qop=%s%s\r\n", data
.nc
, data
.qop
, buf
);
538 uclient_http_add_auth_header(struct uclient_http
*uh
)
540 if (!uh
->uc
.url
->auth
)
543 switch (uh
->auth_type
) {
544 case AUTH_TYPE_UNKNOWN
:
547 case AUTH_TYPE_BASIC
:
548 uclient_http_add_auth_basic(uh
);
550 case AUTH_TYPE_DIGEST
:
551 uclient_http_add_auth_digest(uh
);
557 uclient_http_send_headers(struct uclient_http
*uh
)
559 struct uclient_url
*url
= uh
->uc
.url
;
560 struct blob_attr
*cur
;
561 enum request_type req_type
= uh
->req_type
;
564 if (uh
->state
>= HTTP_STATE_HEADERS_SENT
)
567 if (uh
->uc
.proxy_url
)
568 url
= uh
->uc
.proxy_url
;
570 ustream_printf(uh
->us
,
573 request_types
[req_type
],
574 url
->location
, url
->host
);
576 blobmsg_for_each_attr(cur
, uh
->headers
.head
, rem
)
577 ustream_printf(uh
->us
, "%s: %s\r\n", blobmsg_name(cur
), (char *) blobmsg_data(cur
));
579 if (uclient_request_supports_body(uh
->req_type
))
580 ustream_printf(uh
->us
, "Transfer-Encoding: chunked\r\n");
582 uclient_http_add_auth_header(uh
);
584 ustream_printf(uh
->us
, "\r\n");
586 uh
->state
= HTTP_STATE_HEADERS_SENT
;
589 static void uclient_http_headers_complete(struct uclient_http
*uh
)
591 enum auth_type auth_type
= uh
->auth_type
;
592 int seq
= uh
->uc
.seq
;
594 uh
->state
= HTTP_STATE_RECV_DATA
;
595 uh
->uc
.meta
= uh
->meta
.head
;
596 uclient_http_process_headers(uh
);
598 if (auth_type
== AUTH_TYPE_UNKNOWN
&& uh
->uc
.status_code
== 401 &&
599 (uh
->req_type
== REQ_HEAD
|| uh
->req_type
== REQ_GET
)) {
600 uclient_http_connect(&uh
->uc
);
601 uclient_http_send_headers(uh
);
602 uh
->state
= HTTP_STATE_REQUEST_DONE
;
606 if (uh
->uc
.cb
->header_done
)
607 uh
->uc
.cb
->header_done(&uh
->uc
);
609 if (uh
->eof
|| seq
!= uh
->uc
.seq
)
612 if (uh
->req_type
== REQ_HEAD
|| uh
->uc
.status_code
== 204) {
614 uclient_notify_eof(uh
);
618 static void uclient_parse_http_line(struct uclient_http
*uh
, char *data
)
623 if (uh
->state
== HTTP_STATE_REQUEST_DONE
) {
632 code
= strsep(&data
, " ");
636 uh
->uc
.status_code
= strtoul(code
, &sep
, 10);
640 uh
->state
= HTTP_STATE_RECV_HEADERS
;
645 uclient_http_headers_complete(uh
);
649 sep
= strchr(data
, ':');
655 for (name
= data
; *name
; name
++)
656 *name
= tolower(*name
);
659 while (isspace(*sep
))
662 blobmsg_add_string(&uh
->meta
, name
, sep
);
666 uh
->uc
.status_code
= 400;
668 uclient_notify_eof(uh
);
671 static void __uclient_notify_read(struct uclient_http
*uh
)
673 struct uclient
*uc
= &uh
->uc
;
674 unsigned int seq
= uh
->seq
;
678 if (uh
->state
< HTTP_STATE_REQUEST_DONE
|| uh
->state
== HTTP_STATE_ERROR
)
681 data
= ustream_get_read_buf(uh
->us
, &len
);
685 if (uh
->state
< HTTP_STATE_RECV_DATA
) {
690 sep
= strchr(data
, '\n');
695 if (sep
> data
&& sep
[-1] == '\r')
698 /* Check for multi-line HTTP headers */
703 if (isspace(*next
) && *next
!= '\r' && *next
!= '\n') {
712 cur_len
= next
- data
;
713 uclient_parse_http_line(uh
, data
);
717 ustream_consume(uh
->us
, cur_len
);
723 data
= ustream_get_read_buf(uh
->us
, &len
);
724 } while (data
&& uh
->state
< HTTP_STATE_RECV_DATA
);
733 if (uh
->state
== HTTP_STATE_RECV_DATA
) {
734 /* Now it's uclient user turn to read some data */
735 uloop_timeout_cancel(&uc
->connection_timeout
);
737 if (uc
->cb
->data_read
)
738 uc
->cb
->data_read(uc
);
742 static void __uclient_notify_write(struct uclient_http
*uh
)
744 struct uclient
*uc
= &uh
->uc
;
746 if (uc
->cb
->data_sent
)
747 uc
->cb
->data_sent(uc
);
750 static void uclient_notify_read(struct ustream
*us
, int bytes
)
752 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
754 __uclient_notify_read(uh
);
757 static void uclient_notify_write(struct ustream
*us
, int bytes
)
759 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
761 __uclient_notify_write(uh
);
764 static void uclient_notify_state(struct ustream
*us
)
766 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ufd
.stream
);
768 if (uh
->ufd
.stream
.write_error
) {
769 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
772 uclient_notify_eof(uh
);
775 static int uclient_setup_http(struct uclient_http
*uh
)
777 struct ustream
*us
= &uh
->ufd
.stream
;
783 us
->string_data
= true;
784 us
->notify_state
= uclient_notify_state
;
785 us
->notify_read
= uclient_notify_read
;
786 us
->notify_write
= uclient_notify_write
;
788 ret
= uclient_do_connect(uh
, "80");
790 return UCLIENT_ERROR_CONNECT
;
795 static void uclient_ssl_notify_read(struct ustream
*us
, int bytes
)
797 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
799 __uclient_notify_read(uh
);
802 static void uclient_ssl_notify_write(struct ustream
*us
, int bytes
)
804 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
806 __uclient_notify_write(uh
);
809 static void uclient_ssl_notify_state(struct ustream
*us
)
811 struct uclient_http
*uh
= container_of(us
, struct uclient_http
, ussl
.stream
);
813 uclient_notify_eof(uh
);
816 static void uclient_ssl_notify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
818 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
820 uclient_http_error(uh
, UCLIENT_ERROR_CONNECT
);
823 static void uclient_ssl_notify_verify_error(struct ustream_ssl
*ssl
, int error
, const char *str
)
825 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
827 if (!uh
->ssl_require_validation
)
830 uclient_http_error(uh
, UCLIENT_ERROR_SSL_INVALID_CERT
);
833 static void uclient_ssl_notify_connected(struct ustream_ssl
*ssl
)
835 struct uclient_http
*uh
= container_of(ssl
, struct uclient_http
, ussl
);
837 if (!uh
->ssl_require_validation
)
840 if (!uh
->ussl
.valid_cn
)
841 uclient_http_error(uh
, UCLIENT_ERROR_SSL_CN_MISMATCH
);
844 static int uclient_setup_https(struct uclient_http
*uh
)
846 struct ustream
*us
= &uh
->ussl
.stream
;
853 return UCLIENT_ERROR_MISSING_SSL_CONTEXT
;
855 ret
= uclient_do_connect(uh
, "443");
857 return UCLIENT_ERROR_CONNECT
;
859 us
->string_data
= true;
860 us
->notify_state
= uclient_ssl_notify_state
;
861 us
->notify_read
= uclient_ssl_notify_read
;
862 us
->notify_write
= uclient_ssl_notify_write
;
863 uh
->ussl
.notify_error
= uclient_ssl_notify_error
;
864 uh
->ussl
.notify_verify_error
= uclient_ssl_notify_verify_error
;
865 uh
->ussl
.notify_connected
= uclient_ssl_notify_connected
;
866 uh
->ussl
.server_name
= uh
->uc
.url
->host
;
867 uh
->ssl_ops
->init(&uh
->ussl
, &uh
->ufd
.stream
, uh
->ssl_ctx
, false);
868 uh
->ssl_ops
->set_peer_cn(&uh
->ussl
, uh
->uc
.url
->host
);
873 static int uclient_http_connect(struct uclient
*cl
)
875 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
878 if (!cl
->eof
|| uh
->disconnect
|| uh
->connection_close
)
879 uclient_http_disconnect(uh
);
881 uclient_http_init_request(uh
);
886 uh
->ssl
= cl
->url
->prefix
== PREFIX_HTTPS
;
889 ret
= uclient_setup_https(uh
);
891 ret
= uclient_setup_http(uh
);
896 static void uclient_http_disconnect_cb(struct uloop_timeout
*timeout
)
898 struct uclient_http
*uh
= container_of(timeout
, struct uclient_http
, disconnect_t
);
900 uclient_http_disconnect(uh
);
903 static struct uclient
*uclient_http_alloc(void)
905 struct uclient_http
*uh
;
907 uh
= calloc_a(sizeof(*uh
));
908 uh
->disconnect_t
.cb
= uclient_http_disconnect_cb
;
909 blob_buf_init(&uh
->headers
, 0);
914 static void uclient_http_free_ssl_ctx(struct uclient_http
*uh
)
920 static void uclient_http_free(struct uclient
*cl
)
922 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
924 uclient_http_free_url_state(cl
);
925 uclient_http_free_ssl_ctx(uh
);
926 blob_buf_free(&uh
->headers
);
927 blob_buf_free(&uh
->meta
);
932 uclient_http_set_request_type(struct uclient
*cl
, const char *type
)
934 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
937 if (cl
->backend
!= &uclient_backend_http
)
940 if (uh
->state
> HTTP_STATE_INIT
)
943 for (i
= 0; i
< ARRAY_SIZE(request_types
); i
++) {
944 if (strcmp(request_types
[i
], type
) != 0)
955 uclient_http_reset_headers(struct uclient
*cl
)
957 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
959 blob_buf_init(&uh
->headers
, 0);
965 uclient_http_set_header(struct uclient
*cl
, const char *name
, const char *value
)
967 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
969 if (cl
->backend
!= &uclient_backend_http
)
972 if (uh
->state
> HTTP_STATE_INIT
)
975 blobmsg_add_string(&uh
->headers
, name
, value
);
980 uclient_http_send_data(struct uclient
*cl
, const char *buf
, unsigned int len
)
982 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
984 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
987 uclient_http_send_headers(uh
);
990 ustream_printf(uh
->us
, "%X\r\n", len
);
991 ustream_write(uh
->us
, buf
, len
, false);
992 ustream_printf(uh
->us
, "\r\n");
999 uclient_http_request_done(struct uclient
*cl
)
1001 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1003 if (uh
->state
>= HTTP_STATE_REQUEST_DONE
)
1006 uclient_http_send_headers(uh
);
1007 if (uclient_request_supports_body(uh
->req_type
))
1008 ustream_printf(uh
->us
, "0\r\n\r\n");
1009 uh
->state
= HTTP_STATE_REQUEST_DONE
;
1015 uclient_http_read(struct uclient
*cl
, char *buf
, unsigned int len
)
1017 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1019 char *data
, *data_end
;
1021 if (uh
->state
< HTTP_STATE_RECV_DATA
|| !uh
->us
)
1024 data
= ustream_get_read_buf(uh
->us
, &read_len
);
1025 if (!data
|| !read_len
)
1028 data_end
= data
+ read_len
;
1031 if (uh
->read_chunked
== 0) {
1034 if (data
[0] == '\r' && data
[1] == '\n') {
1039 sep
= strstr(data
, "\r\n");
1044 uh
->read_chunked
= strtoul(data
, NULL
, 16);
1046 read_len
+= sep
+ 2 - data
;
1049 if (!uh
->read_chunked
) {
1051 uh
->uc
.data_eof
= true;
1055 if (len
> data_end
- data
)
1056 len
= data_end
- data
;
1058 if (uh
->read_chunked
>= 0) {
1059 if (len
> uh
->read_chunked
)
1060 len
= uh
->read_chunked
;
1062 uh
->read_chunked
-= len
;
1063 } else if (uh
->content_length
>= 0) {
1064 if (len
> uh
->content_length
)
1065 len
= uh
->content_length
;
1067 uh
->content_length
-= len
;
1068 if (!uh
->content_length
) {
1070 uh
->uc
.data_eof
= true;
1076 memcpy(buf
, data
, len
);
1080 ustream_consume(uh
->us
, read_len
);
1082 uclient_notify_eof(uh
);
1084 /* Now that we consumed something and if this isn't EOF, start timer again */
1085 if (!uh
->uc
.eof
&& !cl
->connection_timeout
.pending
)
1086 uloop_timeout_set(&cl
->connection_timeout
, cl
->timeout_msecs
);
1091 int uclient_http_redirect(struct uclient
*cl
)
1093 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1094 struct blobmsg_policy location
= {
1096 .type
= BLOBMSG_TYPE_STRING
,
1098 struct uclient_url
*url
= cl
->url
;
1099 struct blob_attr
*tb
;
1101 if (cl
->backend
!= &uclient_backend_http
)
1104 switch (cl
->status_code
) {
1113 blobmsg_parse(&location
, 1, &tb
, blob_data(uh
->meta
.head
), blob_len(uh
->meta
.head
));
1117 url
= uclient_get_url(blobmsg_data(tb
), url
->auth
);
1123 if (uclient_http_connect(cl
))
1126 uclient_http_request_done(cl
);
1131 int uclient_http_set_ssl_ctx(struct uclient
*cl
, const struct ustream_ssl_ops
*ops
,
1132 struct ustream_ssl_ctx
*ctx
, bool require_validation
)
1134 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1136 if (cl
->backend
!= &uclient_backend_http
)
1139 uclient_http_free_url_state(cl
);
1141 uclient_http_free_ssl_ctx(uh
);
1144 uh
->ssl_require_validation
= !!ctx
&& require_validation
;
1149 int uclient_http_set_address_family(struct uclient
*cl
, int af
)
1151 struct uclient_http
*uh
= container_of(cl
, struct uclient_http
, uc
);
1153 if (cl
->backend
!= &uclient_backend_http
)
1158 uh
->usock_flags
= USOCK_IPV4ONLY
;
1161 uh
->usock_flags
= USOCK_IPV6ONLY
;
1164 uh
->usock_flags
= 0;
1171 const struct uclient_backend uclient_backend_http
= {
1172 .prefix
= uclient_http_prefix
,
1174 .alloc
= uclient_http_alloc
,
1175 .free
= uclient_http_free
,
1176 .connect
= uclient_http_connect
,
1177 .disconnect
= uclient_http_request_disconnect
,
1178 .update_url
= uclient_http_free_url_state
,
1179 .update_proxy_url
= uclient_http_free_url_state
,
1181 .read
= uclient_http_read
,
1182 .write
= uclient_http_send_data
,
1183 .request
= uclient_http_request_done
,