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/*
* TLS/SSL Protocol
* Copyright (c) 2011 Martin Storsjo
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include "internal.h"
#include "network.h"
#include "os_support.h"
#include "url.h"
#include "tls.h"
#include "libavutil/avstring.h"
#include "libavutil/getenv_utf8.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
static void set_options(TLSShared *c, const char *uri)
{
char buf[1024];
const char *p = strchr(uri, '?');
if (!p)
return;
if (!c->ca_file && av_find_info_tag(buf, sizeof(buf), "cafile", p))
c->ca_file = av_strdup(buf);
if (!c->verify && av_find_info_tag(buf, sizeof(buf), "verify", p)) {
char *endptr = NULL;
c->verify = strtol(buf, &endptr, 10);
if (buf == endptr)
c->verify = 1;
}
if (!c->cert_file && av_find_info_tag(buf, sizeof(buf), "cert", p))
c->cert_file = av_strdup(buf);
if (!c->key_file && av_find_info_tag(buf, sizeof(buf), "key", p))
c->key_file = av_strdup(buf);
}
int ff_tls_open_underlying(TLSShared *c, URLContext *parent, const char *uri, AVDictionary **options)
{
int port;
const char *p;
char buf[200], opts[50] = "";
struct addrinfo hints = { 0 }, *ai = NULL;
const char *proxy_path;
char *env_http_proxy, *env_no_proxy;
int use_proxy;
set_options(c, uri);
if (c->listen)
snprintf(opts, sizeof(opts), "?listen=1");
av_url_split(NULL, 0, NULL, 0, c->underlying_host, sizeof(c->underlying_host), &port, NULL, 0, uri);
p = strchr(uri, '?');
if (!p) {
p = opts;
} else {
if (av_find_info_tag(opts, sizeof(opts), "listen", p))
c->listen = 1;
}
ff_url_join(buf, sizeof(buf), "tcp", NULL, c->underlying_host, port, "%s", p);
hints.ai_flags = AI_NUMERICHOST;
if (!getaddrinfo(c->underlying_host, NULL, &hints, &ai)) {
c->numerichost = 1;
freeaddrinfo(ai);
}
if (!c->host && !(c->host = av_strdup(c->underlying_host)))
return AVERROR(ENOMEM);
env_http_proxy = getenv_utf8("http_proxy");
proxy_path = c->http_proxy ? c->http_proxy : env_http_proxy;
env_no_proxy = getenv_utf8("no_proxy");
use_proxy = !ff_http_match_no_proxy(env_no_proxy, c->underlying_host) &&
proxy_path && av_strstart(proxy_path, "http://", NULL);
freeenv_utf8(env_no_proxy);
if (use_proxy) {
char proxy_host[200], proxy_auth[200], dest[200];
int proxy_port;
av_url_split(NULL, 0, proxy_auth, sizeof(proxy_auth),
proxy_host, sizeof(proxy_host), &proxy_port, NULL, 0,
proxy_path);
ff_url_join(dest, sizeof(dest), NULL, NULL, c->underlying_host, port, NULL);
ff_url_join(buf, sizeof(buf), "httpproxy", proxy_auth, proxy_host,
proxy_port, "/%s", dest);
}
freeenv_utf8(env_http_proxy);
return ffurl_open_whitelist(&c->tcp, buf, AVIO_FLAG_READ_WRITE,
&parent->interrupt_callback, options,
parent->protocol_whitelist, parent->protocol_blacklist, parent);
}
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