126 lines
4.8 KiB
C++
126 lines
4.8 KiB
C++
// Copyright (c) 2018, 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 "net/tor_address.h"
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#include "net/i2p_address.h"
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#include "string_tools.h"
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namespace net
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{
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void get_network_address_host_and_port(const std::string& address, std::string& host, std::string& port)
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{
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// require ipv6 address format "[addr:addr:addr:...:addr]:port"
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if (address.find(']') != std::string::npos)
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{
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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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{
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port = address.substr(address.rfind(':') + 1);
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}
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}
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else
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{
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host = address.substr(0, address.rfind(':'));
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if (host.size() < address.size())
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{
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port = address.substr(host.size() + 1);
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}
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}
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}
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expect<epee::net_utils::network_address>
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get_network_address(const boost::string_ref address, const std::uint16_t default_port)
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{
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std::string host_str = "";
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std::string port_str = "";
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bool ipv6 = false;
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get_network_address_host_and_port(std::string(address), host_str, port_str);
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boost::string_ref host_str_ref(host_str);
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boost::string_ref port_str_ref(port_str);
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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 (host_str_ref.ends_with(".onion"))
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return tor_address::make(address, default_port);
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if (host_str_ref.ends_with(".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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boost::asio::ip::address_v6 v6 = boost::asio::ip::address_v6::from_string(host_str, ec);
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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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{
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if (!epee::string_tools::get_xtype_from_string(port, port_str))
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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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{
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return {epee::net_utils::ipv6_network_address{v6, port}};
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}
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else
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{
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std::uint32_t ip = 0;
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if (epee::string_tools::get_ip_int32_from_string(ip, 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>
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get_ipv4_subnet_address(const boost::string_ref address, bool allow_implicit_32)
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{
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uint32_t mask = 32;
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const boost::string_ref::size_type slash = address.find_first_of('/');
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if (slash != boost::string_ref::npos)
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{
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if (!epee::string_tools::get_xtype_from_string(mask, std::string{address.substr(slash + 1)}))
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return make_error_code(net::error::invalid_mask);
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if (mask > 32)
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return make_error_code(net::error::invalid_mask);
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}
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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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boost::string_ref S(address.data(), slash != boost::string_ref::npos ? slash : address.size());
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if (!epee::string_tools::get_ip_int32_from_string(ip, std::string(S)))
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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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}
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