mirror of https://github.com/oxen-io/oxen-core.git
113 lines
4.4 KiB
C++
113 lines
4.4 KiB
C++
// Copyright (c) 2019, 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 "parse.h"
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#include <boost/version.hpp>
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#include "common/string_util.h"
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#include "epee/string_tools.h"
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#include "net/i2p_address.h"
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#include "net/tor_address.h"
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namespace net {
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std::pair<std::string_view, std::string_view> get_network_address_host_and_port(
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std::string_view address) {
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std::pair<std::string_view, std::string_view> result;
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auto& [host, port] = result;
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// require ipv6 address format "[addr:addr:addr:...:addr]:port"
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if (address.find(']') != std::string_view::npos) {
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host = address.substr(1, address.rfind(']') - 1);
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if ((host.size() + 2) < address.size()) {
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port = address.substr(address.rfind(':') + 1);
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}
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} else {
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host = address.substr(0, address.rfind(':'));
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if (host.size() < address.size()) {
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port = address.substr(host.size() + 1);
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}
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}
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return result;
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}
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expect<epee::net_utils::network_address> get_network_address(
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std::string_view address, const std::uint16_t default_port) {
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bool ipv6 = false;
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auto [host_str, port_str] = get_network_address_host_and_port(address);
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if (host_str.empty())
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return make_error_code(net::error::invalid_host);
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if (tools::ends_with(host_str, ".onion"))
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return tor_address::make(address, default_port);
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if (tools::ends_with(host_str, ".i2p"))
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return i2p_address::make(address, default_port);
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boost::system::error_code ec;
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#if BOOST_VERSION >= 106600
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auto v6 = boost::asio::ip::make_address_v6(host_str, ec);
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#else
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auto v6 = boost::asio::ip::address_v6::from_string(std::string{host_str}, ec);
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#endif
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ipv6 = !ec;
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std::uint16_t port = default_port;
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if (port_str.size()) {
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if (!tools::parse_int(port_str, port))
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return make_error_code(net::error::invalid_port);
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}
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if (ipv6) {
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return {epee::net_utils::ipv6_network_address{v6, port}};
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} else {
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std::uint32_t ip = 0;
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if (epee::string_tools::get_ip_int32_from_string(ip, std::string{host_str}))
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return {epee::net_utils::ipv4_network_address{ip, port}};
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}
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return make_error_code(net::error::unsupported_address);
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}
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expect<epee::net_utils::ipv4_network_subnet> get_ipv4_subnet_address(
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std::string_view address, bool allow_implicit_32) {
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std::uint8_t mask = 32;
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auto slash = address.find_first_of('/');
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if (slash != std::string_view::npos) {
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if (!tools::parse_int(address.substr(slash + 1), mask) || mask > 32)
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return make_error_code(net::error::invalid_mask);
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} else if (!allow_implicit_32)
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return make_error_code(net::error::invalid_mask);
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std::uint32_t ip = 0;
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if (!epee::string_tools::get_ip_int32_from_string(ip, std::string{address.substr(0, slash)}))
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return make_error_code(net::error::invalid_host);
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return {epee::net_utils::ipv4_network_subnet{ip, (uint8_t)mask}};
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}
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} // namespace net
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