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>
26 #include <libubox/ustream.h>
27 #include <libubox/ustream-ssl.h>
28 #include <libubox/usock.h>
29 #include <libubox/blobmsg.h>
32 #include "uclient-utils.h"
33 #include "uclient-backend.h"
53 HTTP_STATE_HEADERS_SENT,
54 HTTP_STATE_REQUEST_DONE,
55 HTTP_STATE_RECV_HEADERS,
60 static const char * const request_types[__REQ_MAX] = {
65 [REQ_DELETE] = "DELETE",
71 const struct ustream_ssl_ops *ssl_ops;
72 struct ustream_ssl_ctx *ssl_ctx;
75 struct ustream_fd ufd;
76 struct ustream_ssl ussl;
78 struct uloop_timeout disconnect_t;
81 bool ssl_require_validation;
84 bool connection_close;
86 enum request_type req_type;
87 enum http_state state;
89 enum auth_type auth_type;
99 struct blob_buf headers;
100 struct blob_buf meta;
109 static const char * const uclient_http_prefix[] = {
110 [PREFIX_HTTP] = "http://",
111 [PREFIX_HTTPS] = "https://",
112 [__PREFIX_MAX] = NULL
115 static int uclient_http_connect(struct uclient *cl);
117 static int uclient_do_connect(struct uclient_http *uh, const char *port)
122 if (uh->uc.url->port)
123 port = uh->uc.url->port;
125 memset(&uh->uc.remote_addr, 0, sizeof(uh->uc.remote_addr));
127 fd = usock_inet_timeout(USOCK_TCP | USOCK_NONBLOCK | uh->usock_flags,
128 uh->uc.url->host, port, &uh->uc.remote_addr,
129 uh->uc.timeout_msecs);
133 fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK);
134 ustream_fd_init(&uh->ufd, fd);
136 sl = sizeof(uh->uc.local_addr);
137 memset(&uh->uc.local_addr, 0, sl);
138 getsockname(fd, &uh->uc.local_addr.sa, &sl);
143 static void uclient_http_disconnect(struct uclient_http *uh)
145 uloop_timeout_cancel(&uh->disconnect_t);
150 ustream_free(&uh->ussl.stream);
151 ustream_free(&uh->ufd.stream);
153 close(uh->ufd.fd.fd);
157 static void uclient_http_free_url_state(struct uclient *cl)
159 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
161 uh->auth_type = AUTH_TYPE_UNKNOWN;
164 uclient_http_disconnect(uh);
167 static void uclient_http_error(struct uclient_http *uh, int code)
169 uh->state = HTTP_STATE_ERROR;
171 ustream_state_change(uh->us);
172 uclient_backend_set_error(&uh->uc, code);
175 static void uclient_http_request_disconnect(struct uclient *cl)
177 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
183 uh->disconnect = true;
184 uloop_timeout_set(&uh->disconnect_t, 1);
187 static void uclient_notify_eof(struct uclient_http *uh)
189 struct ustream *us = uh->us;
195 if (!us->eof && !us->write_error)
198 if (ustream_pending_data(us, false))
202 if ((uh->content_length < 0 && uh->read_chunked >= 0) ||
203 uh->content_length == 0)
204 uh->uc.data_eof = true;
206 uclient_backend_set_eof(&uh->uc);
208 if (uh->connection_close)
209 uclient_http_request_disconnect(&uh->uc);
212 static void uclient_http_reset_state(struct uclient_http *uh)
215 uclient_backend_reset_state(&uh->uc);
216 uh->read_chunked = -1;
217 uh->content_length = -1;
219 uh->disconnect = false;
220 uh->connection_close = false;
221 uh->state = HTTP_STATE_INIT;
223 if (uh->auth_type == AUTH_TYPE_UNKNOWN && !uh->uc.url->auth)
224 uh->auth_type = AUTH_TYPE_NONE;
227 static void uclient_http_init_request(struct uclient_http *uh)
230 uclient_http_reset_state(uh);
231 blob_buf_init(&uh->meta, 0);
234 static enum auth_type
235 uclient_http_update_auth_type(struct uclient_http *uh)
238 return AUTH_TYPE_NONE;
240 if (!strncasecmp(uh->auth_str, "basic", 5))
241 return AUTH_TYPE_BASIC;
243 if (!strncasecmp(uh->auth_str, "digest", 6))
244 return AUTH_TYPE_DIGEST;
246 return AUTH_TYPE_NONE;
249 static void uclient_http_process_headers(struct uclient_http *uh)
252 HTTP_HDR_TRANSFER_ENCODING,
254 HTTP_HDR_CONTENT_LENGTH,
258 static const struct blobmsg_policy hdr_policy[__HTTP_HDR_MAX] = {
259 #define hdr(_name) { .name = _name, .type = BLOBMSG_TYPE_STRING }
260 [HTTP_HDR_TRANSFER_ENCODING] = hdr("transfer-encoding"),
261 [HTTP_HDR_CONNECTION] = hdr("connection"),
262 [HTTP_HDR_CONTENT_LENGTH] = hdr("content-length"),
263 [HTTP_HDR_AUTH] = hdr("www-authenticate"),
266 struct blob_attr *tb[__HTTP_HDR_MAX];
267 struct blob_attr *cur;
269 blobmsg_parse(hdr_policy, __HTTP_HDR_MAX, tb, blob_data(uh->meta.head), blob_len(uh->meta.head));
271 cur = tb[HTTP_HDR_TRANSFER_ENCODING];
272 if (cur && strstr(blobmsg_data(cur), "chunked"))
273 uh->read_chunked = 0;
275 cur = tb[HTTP_HDR_CONNECTION];
276 if (cur && strstr(blobmsg_data(cur), "close"))
277 uh->connection_close = true;
279 cur = tb[HTTP_HDR_CONTENT_LENGTH];
281 uh->content_length = strtoul(blobmsg_data(cur), NULL, 10);
283 cur = tb[HTTP_HDR_AUTH];
286 uh->auth_str = strdup(blobmsg_data(cur));
289 uh->auth_type = uclient_http_update_auth_type(uh);
292 static bool uclient_request_supports_body(enum request_type req_type)
305 uclient_http_add_auth_basic(struct uclient_http *uh)
307 struct uclient_url *url = uh->uc.url;
308 int auth_len = strlen(url->auth);
314 auth_buf = alloca(base64_len(auth_len) + 1);
318 base64_encode(url->auth, auth_len, auth_buf);
319 ustream_printf(uh->us, "Authorization: Basic %s\r\n", auth_buf);
324 static char *digest_unquote_sep(char **str)
326 char *cur = *str + 1;
358 static char *digest_sep(char **str)
363 next = strchr(*str, ',');
368 *str += strlen(*str);
374 static bool strmatch(char **str, const char *prefix)
376 int len = strlen(prefix);
378 if (strncmp(*str, prefix, len) != 0 || (*str)[len] != '=')
386 get_cnonce(char *dest)
392 f = fopen("/dev/urandom", "r");
394 n = fread(&val, sizeof(val), 1, f);
400 bin_to_hex(dest, &val, sizeof(val));
403 static void add_field(char **buf, int *ofs, int *len, const char *name, const char *val)
405 int available = *len - *ofs;
413 required = strlen(name) + 4 + strlen(val) * 2;
414 if (required > available)
415 *len += required - available + 64;
417 *buf = realloc(*buf, *len);
422 cur += sprintf(cur, ", %s=\"", name);
424 while ((next = strchr(val, '"'))) {
426 memcpy(cur, val, next - val);
430 cur += sprintf(cur, "\\\"");
434 cur += sprintf(cur, "%s\"", val);
439 uclient_http_add_auth_digest(struct uclient_http *uh)
441 struct uclient_url *url = uh->uc.url;
442 const char *realm = NULL, *opaque = NULL;
443 const char *user, *password;
444 char *buf, *next, *buf_orig;
453 struct http_digest_data data = {
455 .cnonce = cnonce_str,
459 len = strlen(uh->auth_str) + 1;
471 strcpy(buf, uh->auth_str);
474 buf_orig = strsep(&buf, " ");
478 const char **dest = NULL;
481 while (*next && isspace(*next))
484 if (strmatch(&next, "realm"))
486 else if (strmatch(&next, "qop"))
488 else if (strmatch(&next, "nonce"))
490 else if (strmatch(&next, "opaque"))
492 else if (strmatch(&next, "stale") ||
493 strmatch(&next, "algorithm") ||
494 strmatch(&next, "auth-param")) {
497 } else if (strmatch(&next, "domain") ||
498 strmatch(&next, "qop-options"))
505 *dest = digest_unquote_sep(&next);
508 if (!realm || !data.qop || !data.nonce) {
513 sprintf(nc_str, "%08x", uh->nc++);
514 get_cnonce(cnonce_str);
517 data.uri = url->location;
518 data.method = request_types[uh->req_type];
520 password = strchr(url->auth, ':');
524 len = password - url->auth;
530 user_buf = alloca(len + 1);
536 strncpy(user_buf, url->auth, len);
545 http_digest_calculate_auth_hash(ahash, user, realm, password);
546 http_digest_calculate_response(hash, &data);
552 add_field(&buf, &ofs, &len, "username", user);
553 add_field(&buf, &ofs, &len, "realm", realm);
554 add_field(&buf, &ofs, &len, "nonce", data.nonce);
555 add_field(&buf, &ofs, &len, "uri", data.uri);
556 add_field(&buf, &ofs, &len, "cnonce", data.cnonce);
557 add_field(&buf, &ofs, &len, "response", hash);
559 add_field(&buf, &ofs, &len, "opaque", opaque);
561 ustream_printf(uh->us, "Authorization: Digest nc=%s, qop=%s%s\r\n", data.nc, data.qop, buf);
574 uclient_http_add_auth_header(struct uclient_http *uh)
576 if (!uh->uc.url->auth)
579 switch (uh->auth_type) {
580 case AUTH_TYPE_UNKNOWN:
583 case AUTH_TYPE_BASIC:
584 return uclient_http_add_auth_basic(uh);
585 case AUTH_TYPE_DIGEST:
586 return uclient_http_add_auth_digest(uh);
593 uclient_http_send_headers(struct uclient_http *uh)
595 struct uclient_url *url = uh->uc.url;
596 struct blob_attr *cur;
597 enum request_type req_type = uh->req_type;
601 if (uh->state >= HTTP_STATE_HEADERS_SENT)
604 if (uh->uc.proxy_url)
605 url = uh->uc.proxy_url;
607 literal_ipv6 = strchr(url->host, ':');
609 ustream_printf(uh->us,
611 "Host: %s%s%s%s%s\r\n",
612 request_types[req_type], url->location,
613 literal_ipv6 ? "[" : "",
615 literal_ipv6 ? "]" : "",
616 url->port ? ":" : "",
617 url->port ? url->port : "");
619 blobmsg_for_each_attr(cur, uh->headers.head, rem)
620 ustream_printf(uh->us, "%s: %s\r\n", blobmsg_name(cur), (char *) blobmsg_data(cur));
622 if (uclient_request_supports_body(uh->req_type))
623 ustream_printf(uh->us, "Transfer-Encoding: chunked\r\n");
625 err = uclient_http_add_auth_header(uh);
629 ustream_printf(uh->us, "\r\n");
631 uh->state = HTTP_STATE_HEADERS_SENT;
636 static void uclient_http_headers_complete(struct uclient_http *uh)
638 enum auth_type auth_type = uh->auth_type;
639 int seq = uh->uc.seq;
641 uh->state = HTTP_STATE_RECV_DATA;
642 uh->uc.meta = uh->meta.head;
643 uclient_http_process_headers(uh);
645 if (auth_type == AUTH_TYPE_UNKNOWN && uh->uc.status_code == 401 &&
646 (uh->req_type == REQ_HEAD || uh->req_type == REQ_GET)) {
647 uclient_http_connect(&uh->uc);
648 uclient_http_send_headers(uh);
649 uh->state = HTTP_STATE_REQUEST_DONE;
653 if (uh->uc.cb->header_done)
654 uh->uc.cb->header_done(&uh->uc);
656 if (uh->eof || seq != uh->uc.seq)
659 if (uh->req_type == REQ_HEAD || uh->uc.status_code == 204) {
661 uclient_notify_eof(uh);
665 static void uclient_parse_http_line(struct uclient_http *uh, char *data)
670 if (uh->state == HTTP_STATE_REQUEST_DONE) {
679 code = strsep(&data, " ");
683 uh->uc.status_code = strtoul(code, &sep, 10);
687 uh->state = HTTP_STATE_RECV_HEADERS;
692 uclient_http_headers_complete(uh);
696 sep = strchr(data, ':');
702 for (name = data; *name; name++)
703 *name = tolower(*name);
706 while (isspace(*sep))
709 blobmsg_add_string(&uh->meta, name, sep);
713 uh->uc.status_code = 400;
715 uclient_notify_eof(uh);
718 static void __uclient_notify_read(struct uclient_http *uh)
720 struct uclient *uc = &uh->uc;
721 unsigned int seq = uh->seq;
725 if (uh->state < HTTP_STATE_REQUEST_DONE || uh->state == HTTP_STATE_ERROR)
728 data = ustream_get_read_buf(uh->us, &len);
732 if (uh->state < HTTP_STATE_RECV_DATA) {
737 sep = strchr(data, '\n');
742 if (sep > data && sep[-1] == '\r')
745 /* Check for multi-line HTTP headers */
750 if (isspace(*next) && *next != '\r' && *next != '\n') {
759 cur_len = next - data;
760 uclient_parse_http_line(uh, data);
764 ustream_consume(uh->us, cur_len);
770 data = ustream_get_read_buf(uh->us, &len);
771 } while (data && uh->state < HTTP_STATE_RECV_DATA);
780 if (uh->state == HTTP_STATE_RECV_DATA) {
781 /* Now it's uclient user turn to read some data */
782 uloop_timeout_cancel(&uc->connection_timeout);
784 if (uc->cb->data_read)
785 uc->cb->data_read(uc);
789 static void __uclient_notify_write(struct uclient_http *uh)
791 struct uclient *uc = &uh->uc;
793 if (uc->cb->data_sent)
794 uc->cb->data_sent(uc);
797 static void uclient_notify_read(struct ustream *us, int bytes)
799 struct uclient_http *uh = container_of(us, struct uclient_http, ufd.stream);
801 __uclient_notify_read(uh);
804 static void uclient_notify_write(struct ustream *us, int bytes)
806 struct uclient_http *uh = container_of(us, struct uclient_http, ufd.stream);
808 __uclient_notify_write(uh);
811 static void uclient_notify_state(struct ustream *us)
813 struct uclient_http *uh = container_of(us, struct uclient_http, ufd.stream);
815 if (uh->ufd.stream.write_error) {
816 uclient_http_error(uh, UCLIENT_ERROR_CONNECT);
819 uclient_notify_eof(uh);
822 static int uclient_setup_http(struct uclient_http *uh)
824 struct ustream *us = &uh->ufd.stream;
830 us->string_data = true;
831 us->notify_state = uclient_notify_state;
832 us->notify_read = uclient_notify_read;
833 us->notify_write = uclient_notify_write;
835 ret = uclient_do_connect(uh, "80");
837 return UCLIENT_ERROR_CONNECT;
842 static void uclient_ssl_notify_read(struct ustream *us, int bytes)
844 struct uclient_http *uh = container_of(us, struct uclient_http, ussl.stream);
846 __uclient_notify_read(uh);
849 static void uclient_ssl_notify_write(struct ustream *us, int bytes)
851 struct uclient_http *uh = container_of(us, struct uclient_http, ussl.stream);
853 __uclient_notify_write(uh);
856 static void uclient_ssl_notify_state(struct ustream *us)
858 struct uclient_http *uh = container_of(us, struct uclient_http, ussl.stream);
860 uclient_notify_eof(uh);
863 static void uclient_ssl_notify_error(struct ustream_ssl *ssl, int error, const char *str)
865 struct uclient_http *uh = container_of(ssl, struct uclient_http, ussl);
867 uclient_http_error(uh, UCLIENT_ERROR_CONNECT);
870 static void uclient_ssl_notify_verify_error(struct ustream_ssl *ssl, int error, const char *str)
872 struct uclient_http *uh = container_of(ssl, struct uclient_http, ussl);
874 if (!uh->ssl_require_validation)
877 uclient_http_error(uh, UCLIENT_ERROR_SSL_INVALID_CERT);
880 static void uclient_ssl_notify_connected(struct ustream_ssl *ssl)
882 struct uclient_http *uh = container_of(ssl, struct uclient_http, ussl);
884 if (!uh->ssl_require_validation)
887 if (!uh->ussl.valid_cn)
888 uclient_http_error(uh, UCLIENT_ERROR_SSL_CN_MISMATCH);
891 static int uclient_setup_https(struct uclient_http *uh)
893 struct ustream *us = &uh->ussl.stream;
900 return UCLIENT_ERROR_MISSING_SSL_CONTEXT;
902 ret = uclient_do_connect(uh, "443");
904 return UCLIENT_ERROR_CONNECT;
906 us->string_data = true;
907 us->notify_state = uclient_ssl_notify_state;
908 us->notify_read = uclient_ssl_notify_read;
909 us->notify_write = uclient_ssl_notify_write;
910 uh->ussl.notify_error = uclient_ssl_notify_error;
911 uh->ussl.notify_verify_error = uclient_ssl_notify_verify_error;
912 uh->ussl.notify_connected = uclient_ssl_notify_connected;
913 uh->ussl.server_name = uh->uc.url->host;
914 uh->ssl_ops->init(&uh->ussl, &uh->ufd.stream, uh->ssl_ctx, false);
915 uh->ssl_ops->set_peer_cn(&uh->ussl, uh->uc.url->host);
920 static int uclient_http_connect(struct uclient *cl)
922 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
925 if (!cl->eof || uh->disconnect || uh->connection_close)
926 uclient_http_disconnect(uh);
928 uclient_http_init_request(uh);
933 uh->ssl = cl->url->prefix == PREFIX_HTTPS;
936 ret = uclient_setup_https(uh);
938 ret = uclient_setup_http(uh);
943 static void uclient_http_disconnect_cb(struct uloop_timeout *timeout)
945 struct uclient_http *uh = container_of(timeout, struct uclient_http, disconnect_t);
947 uclient_http_disconnect(uh);
950 static struct uclient *uclient_http_alloc(void)
952 struct uclient_http *uh;
954 uh = calloc_a(sizeof(*uh));
958 uh->disconnect_t.cb = uclient_http_disconnect_cb;
959 blob_buf_init(&uh->headers, 0);
964 static void uclient_http_free_ssl_ctx(struct uclient_http *uh)
970 static void uclient_http_free(struct uclient *cl)
972 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
974 uclient_http_free_url_state(cl);
975 uclient_http_free_ssl_ctx(uh);
976 blob_buf_free(&uh->headers);
977 blob_buf_free(&uh->meta);
982 uclient_http_set_request_type(struct uclient *cl, const char *type)
984 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
987 if (cl->backend != &uclient_backend_http)
990 if (uh->state > HTTP_STATE_INIT)
993 for (i = 0; i < ARRAY_SIZE(request_types); i++) {
994 if (strcmp(request_types[i], type) != 0)
1005 uclient_http_reset_headers(struct uclient *cl)
1007 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1009 blob_buf_init(&uh->headers, 0);
1015 uclient_http_set_header(struct uclient *cl, const char *name, const char *value)
1017 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1019 if (cl->backend != &uclient_backend_http)
1022 if (uh->state > HTTP_STATE_INIT)
1025 blobmsg_add_string(&uh->headers, name, value);
1030 uclient_http_send_data(struct uclient *cl, const char *buf, unsigned int len)
1032 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1035 if (uh->state >= HTTP_STATE_REQUEST_DONE)
1038 err = uclient_http_send_headers(uh);
1043 ustream_printf(uh->us, "%X\r\n", len);
1044 ustream_write(uh->us, buf, len, false);
1045 ustream_printf(uh->us, "\r\n");
1052 uclient_http_request_done(struct uclient *cl)
1054 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1057 if (uh->state >= HTTP_STATE_REQUEST_DONE)
1060 err = uclient_http_send_headers(uh);
1064 if (uclient_request_supports_body(uh->req_type))
1065 ustream_printf(uh->us, "0\r\n\r\n");
1066 uh->state = HTTP_STATE_REQUEST_DONE;
1072 uclient_http_read(struct uclient *cl, char *buf, unsigned int len)
1074 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1076 char *data, *data_end;
1078 if (uh->state < HTTP_STATE_RECV_DATA || !uh->us)
1081 data = ustream_get_read_buf(uh->us, &read_len);
1082 if (!data || !read_len)
1085 data_end = data + read_len;
1088 if (uh->read_chunked == 0) {
1091 if (data[0] == '\r' && data[1] == '\n') {
1096 sep = strstr(data, "\r\n");
1101 uh->read_chunked = strtoul(data, NULL, 16);
1103 read_len += sep + 2 - data;
1106 if (!uh->read_chunked) {
1108 uh->uc.data_eof = true;
1112 if (len > data_end - data)
1113 len = data_end - data;
1115 if (uh->read_chunked >= 0) {
1116 if (len > uh->read_chunked)
1117 len = uh->read_chunked;
1119 uh->read_chunked -= len;
1120 } else if (uh->content_length >= 0) {
1121 if (len > uh->content_length)
1122 len = uh->content_length;
1124 uh->content_length -= len;
1125 if (!uh->content_length) {
1127 uh->uc.data_eof = true;
1133 memcpy(buf, data, len);
1137 ustream_consume(uh->us, read_len);
1139 uclient_notify_eof(uh);
1141 /* Now that we consumed something and if this isn't EOF, start timer again */
1142 if (!uh->uc.eof && !cl->connection_timeout.pending)
1143 uloop_timeout_set(&cl->connection_timeout, cl->timeout_msecs);
1148 int uclient_http_redirect(struct uclient *cl)
1150 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1151 struct blobmsg_policy location = {
1153 .type = BLOBMSG_TYPE_STRING,
1155 struct uclient_url *url = cl->url;
1156 struct blob_attr *tb;
1158 if (cl->backend != &uclient_backend_http)
1161 switch (cl->status_code) {
1170 blobmsg_parse(&location, 1, &tb, blob_data(uh->meta.head), blob_len(uh->meta.head));
1174 url = uclient_get_url_location(url, blobmsg_data(tb));
1178 if (cl->proxy_url) {
1179 free(cl->proxy_url);
1180 cl->proxy_url = url;
1187 if (uclient_http_connect(cl))
1190 uclient_http_request_done(cl);
1195 int uclient_http_set_ssl_ctx(struct uclient *cl, const struct ustream_ssl_ops *ops,
1196 struct ustream_ssl_ctx *ctx, bool require_validation)
1198 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1200 if (cl->backend != &uclient_backend_http)
1203 uclient_http_free_url_state(cl);
1205 uclient_http_free_ssl_ctx(uh);
1208 uh->ssl_require_validation = !!ctx && require_validation;
1213 int uclient_http_set_address_family(struct uclient *cl, int af)
1215 struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
1217 if (cl->backend != &uclient_backend_http)
1222 uh->usock_flags = USOCK_IPV4ONLY;
1225 uh->usock_flags = USOCK_IPV6ONLY;
1228 uh->usock_flags = 0;
1235 const struct uclient_backend uclient_backend_http = {
1236 .prefix = uclient_http_prefix,
1238 .alloc = uclient_http_alloc,
1239 .free = uclient_http_free,
1240 .connect = uclient_http_connect,
1241 .disconnect = uclient_http_request_disconnect,
1242 .update_url = uclient_http_free_url_state,
1243 .update_proxy_url = uclient_http_free_url_state,
1245 .read = uclient_http_read,
1246 .write = uclient_http_send_data,
1247 .request = uclient_http_request_done,