#define _GNU_SOURCE
#include <sys/stat.h>
+#include <sys/socket.h>
#include <unistd.h>
#include <stdio.h>
#include <dlfcn.h>
static const char *user_agent = "uclient-fetch";
static const char *post_data;
+static const char *post_file;
static struct ustream_ssl_ctx *ssl_ctx;
static const struct ustream_ssl_ops *ssl_ops;
static int quiet = false;
static bool proxy = true;
static bool default_certs = false;
static bool no_output;
-static const char *output_file;
+static const char *opt_output_file;
static int output_fd = -1;
static int error_ret;
static off_t out_offset;
static int open_output_file(const char *path, uint64_t resume_offset)
{
+ const char *output_file = opt_output_file;
char *filename = NULL;
int flags;
int ret;
if (cur_resume)
flags = O_RDWR;
else
- flags = O_WRONLY | O_EXCL;
+ flags = O_WRONLY | O_TRUNC;
+
+ if (!cur_resume && !output_file)
+ flags |= O_EXCL;
flags |= O_CREAT;
if (!quiet)
fprintf(stderr, "Writing to stdout\n");
- return STDOUT_FILENO;
+ ret = STDOUT_FILENO;
+ goto done;
}
} else {
filename = uclient_get_url_filename(path, "index.html");
+ if (!filename) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
output_file = filename;
}
out_offset = resume_offset;
out_bytes += resume_offset;
+done:
if (!quiet) {
progress_init(&pmt, output_file);
pmt_timer.cb = pmt_update;
free:
free(filename);
+out:
return ret;
}
uint64_t resume_offset = 0, resume_end, resume_size;
static int retries;
- if (retries < 10 && uclient_http_redirect(cl)) {
- if (!quiet)
- fprintf(stderr, "Redirected to %s on %s\n", cl->url->location, cl->url->host);
+ if (retries < 10) {
+ int ret = uclient_http_redirect(cl);
+ if (ret < 0) {
+ if (!quiet)
+ fprintf(stderr, "Failed to redirect to %s on %s\n", cl->url->location, cl->url->host);
+ error_ret = 8;
+ request_done(cl);
+ return;
+ }
+ if (ret > 0) {
+ if (!quiet)
+ fprintf(stderr, "Redirected to %s on %s\n", cl->url->location, cl->url->host);
- retries++;
- return;
+ retries++;
+ return;
+ }
}
if (cl->status_code == 204 && cur_resume) {
error_ret = 8;
break;
}
+ /* fall through */
case 204:
case 200:
if (no_output)
static void read_data_cb(struct uclient *cl)
{
char buf[256];
+ ssize_t n;
int len;
if (!no_output && output_fd < 0)
while (1) {
len = uclient_read(cl, buf, sizeof(buf));
- if (!len)
+ if (len <= 0)
return;
out_bytes += len;
- if (!no_output)
- write(output_fd, buf, len);
+ if (!no_output) {
+ n = write(output_fd, buf, len);
+ if (n < 0)
+ return;
+ }
}
}
msg_connecting(cl);
- rc = uclient_http_set_request_type(cl, post_data ? "POST" : "GET");
+ rc = uclient_http_set_request_type(cl, post_data || post_file ? "POST" : "GET");
if (rc)
return rc;
uclient_http_set_header(cl, "Content-Type", "application/x-www-form-urlencoded");
uclient_write(cl, post_data, strlen(post_data));
}
+ else if(post_file)
+ {
+ FILE *input_file;
+ uclient_http_set_header(cl, "Content-Type", "application/x-www-form-urlencoded");
+
+ input_file = fopen(post_file, "r");
+ if (!input_file)
+ return errno;
+
+ char tbuf[1024];
+ size_t rlen = 0;
+ do
+ {
+ rlen = fread(tbuf, 1, sizeof(tbuf), input_file);
+ uclient_write(cl, tbuf, rlen);
+ }
+ while(rlen);
+
+ fclose(input_file);
+ }
rc = uclient_request(cl);
if (rc)
return;
}
- if (output_fd >= 0 && !output_file) {
+ if (output_fd >= 0 && !opt_output_file) {
close(output_fd);
output_fd = -1;
}
fprintf(stderr,
"Usage: %s [options] <URL>\n"
"Options:\n"
- " -q: Turn off status messages\n"
- " -O <file>: Redirect output to file (use \"-\" for stdout)\n"
- " -P <dir>: Set directory for output files\n"
+ " -4 Use IPv4 only\n"
+ " -6 Use IPv6 only\n"
+ " -O <file> Redirect output to file (use \"-\" for stdout)\n"
+ " -P <dir> Set directory for output files\n"
+ " --quiet | -q Turn off status messages\n"
+ " --continue | -c Continue a partially-downloaded file\n"
" --user=<user> HTTP authentication username\n"
" --password=<password> HTTP authentication password\n"
- " --user-agent|-U <str> Set HTTP user agent\n"
+ " --user-agent | -U <str> Set HTTP user agent\n"
" --post-data=STRING use the POST method; send STRING as the data\n"
- " --spider|-s Spider mode - only check file existence\n"
- " --timeout=N|-T N Set connect/request timeout to N seconds\n"
- " --proxy=on|off|-Y on|off Enable/disable env var configured proxy\n"
+ " --post-file=FILE use the POST method; send FILE as the data\n"
+ " --spider | -s Spider mode - only check file existence\n"
+ " --timeout=N | -T N Set connect/request timeout to N seconds\n"
+ " --proxy=on | -Y on Enable interpretation of proxy env vars (default)\n"
+ " --proxy=off | -Y off |\n"
+ " --no-proxy Disable interpretation of proxy env vars\n"
"\n"
"HTTPS options:\n"
- " --ca-certificate=<cert>: Load CA certificates from file <cert>\n"
- " --no-check-certificate: don't validate the server's certificate\n"
+ " --ca-certificate=<cert> Load CA certificates from file <cert>\n"
+ " --no-check-certificate don't validate the server's certificate\n"
+ " --ciphers=<cipherlist> Set the cipher list string\n"
"\n", progname);
return 1;
}
static void init_ca_cert(void)
{
glob_t gl;
- int i;
+ unsigned int i;
glob("/etc/ssl/certs/*.crt", 0, NULL, &gl);
for (i = 0; i < gl.gl_pathc; i++)
ssl_ops->context_add_ca_crt_file(ssl_ctx, gl.gl_pathv[i]);
+ globfree(&gl);
}
static void init_ustream_ssl(void)
static int no_ssl(const char *progname)
{
- fprintf(stderr, "%s: SSL support not available, please install ustream-ssl\n", progname);
+ fprintf(stderr,
+ "%s: SSL support not available, please install one of the "
+ "libustream-.*[ssl|tls] packages as well as the ca-bundle and "
+ "ca-certificates packages.\n",
+ progname);
+
return 1;
}
enum {
L_NO_CHECK_CERTIFICATE,
L_CA_CERTIFICATE,
+ L_CIPHERS,
L_USER,
L_PASSWORD,
L_USER_AGENT,
L_POST_DATA,
+ L_POST_FILE,
L_SPIDER,
L_TIMEOUT,
L_CONTINUE,
L_PROXY,
L_NO_PROXY,
+ L_QUIET,
};
static const struct option longopts[] = {
- [L_NO_CHECK_CERTIFICATE] = { "no-check-certificate", no_argument },
- [L_CA_CERTIFICATE] = { "ca-certificate", required_argument },
- [L_USER] = { "user", required_argument },
- [L_PASSWORD] = { "password", required_argument },
- [L_USER_AGENT] = { "user-agent", required_argument },
- [L_POST_DATA] = { "post-data", required_argument },
- [L_SPIDER] = { "spider", no_argument },
- [L_TIMEOUT] = { "timeout", required_argument },
- [L_CONTINUE] = { "continue", no_argument },
- [L_PROXY] = { "proxy", required_argument },
- [L_NO_PROXY] = { "no-proxy", no_argument },
+ [L_NO_CHECK_CERTIFICATE] = { "no-check-certificate", no_argument, NULL, 0 },
+ [L_CA_CERTIFICATE] = { "ca-certificate", required_argument, NULL, 0 },
+ [L_CIPHERS] = { "ciphers", required_argument, NULL, 0 },
+ [L_USER] = { "user", required_argument, NULL, 0 },
+ [L_PASSWORD] = { "password", required_argument, NULL, 0 },
+ [L_USER_AGENT] = { "user-agent", required_argument, NULL, 0 },
+ [L_POST_DATA] = { "post-data", required_argument, NULL, 0 },
+ [L_POST_FILE] = { "post-file", required_argument, NULL, 0 },
+ [L_SPIDER] = { "spider", no_argument, NULL, 0 },
+ [L_TIMEOUT] = { "timeout", required_argument, NULL, 0 },
+ [L_CONTINUE] = { "continue", no_argument, NULL, 0 },
+ [L_PROXY] = { "proxy", required_argument, NULL, 0 },
+ [L_NO_PROXY] = { "no-proxy", no_argument, NULL, 0 },
+ [L_QUIET] = { "quiet", no_argument, NULL, 0 },
{}
};
bool has_cert = false;
int i, ch;
int rc;
+ int af = -1;
signal(SIGPIPE, SIG_IGN);
init_ustream_ssl();
- while ((ch = getopt_long(argc, argv, "cO:P:qsT:U:Y:", longopts, &longopt_idx)) != -1) {
+ while ((ch = getopt_long(argc, argv, "46cO:P:qsT:U:Y:", longopts, &longopt_idx)) != -1) {
switch(ch) {
case 0:
switch (longopt_idx) {
case L_NO_CHECK_CERTIFICATE:
verify = false;
+ if (ssl_ctx)
+ ssl_ops->context_set_require_validation(ssl_ctx, verify);
break;
case L_CA_CERTIFICATE:
has_cert = true;
if (ssl_ctx)
ssl_ops->context_add_ca_crt_file(ssl_ctx, optarg);
break;
+ case L_CIPHERS:
+ if (ssl_ctx) {
+ if (ssl_ops->context_set_ciphers(ssl_ctx, optarg)) {
+ if (!quiet)
+ fprintf(stderr, "No recognized ciphers in cipher list\n");
+ exit(1);
+ }
+ }
+ break;
case L_USER:
if (!strlen(optarg))
break;
- username = strdup(optarg);
+ username = strdupa(optarg);
memset(optarg, '*', strlen(optarg));
break;
case L_PASSWORD:
if (!strlen(optarg))
break;
- password = strdup(optarg);
+ password = strdupa(optarg);
memset(optarg, '*', strlen(optarg));
break;
case L_USER_AGENT:
case L_POST_DATA:
post_data = optarg;
break;
+ case L_POST_FILE:
+ post_file = optarg;
+ break;
case L_SPIDER:
no_output = true;
break;
case L_NO_PROXY:
proxy = false;
break;
+ case L_QUIET:
+ quiet = true;
+ break;
default:
return usage(progname);
}
break;
+ case '4':
+ af = AF_INET;
+ break;
+ case '6':
+ af = AF_INET6;
+ break;
case 'c':
resume = true;
break;
user_agent = optarg;
break;
case 'O':
- output_file = optarg;
+ opt_output_file = optarg;
break;
case 'P':
if (chdir(optarg)) {
uloop_init();
if (username) {
- if (password)
- asprintf(&auth_str, "%s:%s", username, password);
- else
+ if (password) {
+ rc = asprintf(&auth_str, "%s:%s", username, password);
+ if (rc < 0)
+ return rc;
+ } else
auth_str = username;
}
proxy_url = get_proxy_url(argv[0]);
if (proxy_url) {
cl = uclient_new(proxy_url, auth_str, &cb);
- uclient_set_proxy_url(cl, argv[0], NULL);
+ if (cl)
+ uclient_set_proxy_url(cl, argv[0], NULL);
} else {
cl = uclient_new(argv[0], auth_str, &cb);
}
fprintf(stderr, "Failed to allocate uclient context\n");
return 1;
}
+ if (af >= 0)
+ uclient_http_set_address_family(cl, af);
if (ssl_ctx && default_certs)
init_ca_cert();
/* no error received, we can enter main loop */
uloop_run();
} else {
- fprintf(stderr, "Failed to establish connection\n");
+ fprintf(stderr, "Failed to send request: %s\n", strerror(rc));
error_ret = 4;
}