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92 lines
3.8 KiB
92 lines
3.8 KiB
// Copyright (c) 2019-2022, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "socks_connect.h"
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#include <boost/system/error_code.hpp>
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#include <boost/system/system_error.hpp>
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#include <cstdint>
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#include <memory>
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#include <system_error>
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#include "net/error.h"
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#include "net/net_utils_base.h"
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#include "net/socks.h"
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#include "string_tools.h"
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#include "string_tools_lexical.h"
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namespace net
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{
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namespace socks
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{
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boost::unique_future<boost::asio::ip::tcp::socket>
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connector::operator()(const std::string& remote_host, const std::string& remote_port, boost::asio::steady_timer& timeout) const
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{
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struct future_socket
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{
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boost::promise<boost::asio::ip::tcp::socket> result_;
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void operator()(boost::system::error_code error, boost::asio::ip::tcp::socket&& socket)
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{
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if (error)
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result_.set_exception(boost::system::system_error{error});
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else
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result_.set_value(std::move(socket));
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}
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};
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boost::unique_future<boost::asio::ip::tcp::socket> out{};
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{
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std::uint16_t port = 0;
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if (!epee::string_tools::get_xtype_from_string(port, remote_port))
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throw std::system_error{net::error::invalid_port, "Remote port for socks proxy"};
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bool is_set = false;
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std::uint32_t ip_address = 0;
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boost::promise<boost::asio::ip::tcp::socket> result{};
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out = result.get_future();
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const auto proxy = net::socks::make_connect_client(
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boost::asio::ip::tcp::socket{GET_IO_SERVICE(timeout)}, net::socks::version::v4a, future_socket{std::move(result)}
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);
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if (epee::string_tools::get_ip_int32_from_string(ip_address, remote_host))
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is_set = proxy->set_connect_command(epee::net_utils::ipv4_network_address{ip_address, port});
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else
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is_set = proxy->set_connect_command(remote_host, port);
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if (!is_set || !net::socks::client::connect_and_send(proxy, proxy_address))
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throw std::system_error{net::error::invalid_host, "Address for socks proxy"};
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timeout.async_wait(net::socks::client::async_close{std::move(proxy)});
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}
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return out;
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}
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} // socks
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} // net
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