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