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/blobmsg.h>
29 #define LIB_EXT "dylib"
34 static struct ustream_ssl_ctx *ssl_ctx;
35 static const struct ustream_ssl_ops *ssl_ops;
36 static int quiet = false;
38 static void example_header_done(struct uclient *cl)
40 struct blob_attr *cur;
46 printf("Headers (%d): \n", cl->status_code);
47 blobmsg_for_each_attr(cur, cl->meta, rem) {
48 printf("%s=%s\n", blobmsg_name(cur), (char *) blobmsg_data(cur));
51 printf("Contents:\n");
54 static void example_read_data(struct uclient *cl)
60 len = uclient_read(cl, buf, sizeof(buf));
64 write(STDOUT_FILENO, buf, len);
68 static void msg_connecting(struct uclient *cl)
70 char addr[INET6_ADDRSTRLEN];
76 uclient_get_addr(addr, &port, &cl->remote_addr);
77 fprintf(stderr, "Connecting to %s %s:%d\n", cl->url->host, addr, port);
80 static void init_request(struct uclient *cl)
84 uclient_http_set_request_type(cl, "GET");
88 static void request_done(struct uclient *cl)
93 static void example_eof(struct uclient *cl)
97 if (retries < 10 && uclient_http_redirect(cl)) {
106 static void example_error(struct uclient *cl, int code)
109 fprintf(stderr, "Error %d!\n", code);
114 static const struct uclient_cb cb = {
115 .header_done = example_header_done,
116 .data_read = example_read_data,
117 .data_eof = example_eof,
118 .error = example_error,
121 static int usage(const char *progname)
124 "Usage: %s [options] <URL>\n"
128 " --ca-certificate=<cert>: Load CA certificates from file <cert>\n"
129 " --no-check-certificate: don't validate the server's certificate\n"
135 static void init_ustream_ssl(void)
139 dlh = dlopen("libustream-ssl." LIB_EXT, RTLD_LAZY | RTLD_LOCAL);
143 ssl_ops = dlsym(dlh, "ustream_ssl_ops");
147 ssl_ctx = ssl_ops->context_new(false);
150 static int no_ssl(const char *progname)
152 fprintf(stderr, "%s: SSL support not available, please install ustream-ssl\n", progname);
157 L_NO_CHECK_CERTIFICATE,
161 static const struct option longopts[] = {
162 [L_NO_CHECK_CERTIFICATE] = { "no-check-certificate", no_argument },
163 [L_CA_CERTIFICATE] = { "ca-certificate", required_argument },
167 int main(int argc, char **argv)
169 const char *progname = argv[0];
177 while ((ch = getopt_long(argc, argv, "q", longopts, &longopt_idx)) != -1) {
180 switch (longopt_idx) {
181 case L_NO_CHECK_CERTIFICATE:
184 case L_CA_CERTIFICATE:
186 ssl_ops->context_add_ca_crt_file(ssl_ctx, optarg);
189 return usage(progname);
196 return usage(progname);
204 return usage(progname);
206 if (!strncmp(argv[0], "https", 5) && !ssl_ctx)
207 return no_ssl(progname);
211 cl = uclient_new(argv[0], NULL, &cb);
213 fprintf(stderr, "Failed to allocate uclient context\n");
218 uclient_http_set_ssl_ctx(cl, ssl_ops, ssl_ctx, verify);
227 ssl_ops->context_free(ssl_ctx);