Files
Tower-Defense/src/network/IPAddress.cpp
2023-01-02 13:05:43 +01:00

126 lines
3.2 KiB
C++

#include "network/IPAddress.h"
#include <regex>
#include <stdexcept>
#include <sstream>
namespace {
const std::regex IPRegex(R":(^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$):");
const std::wregex IPRegexW(LR":(^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$):");
} // ns
namespace td {
namespace network {
/* Create an invalid address */
IPAddress::IPAddress() noexcept
: m_Address(0), m_Valid(false) {
}
/* Initialize by string IP */
IPAddress::IPAddress(const std::string& ip)
: m_Address(0), m_Valid(false) {
std::sregex_iterator begin(ip.begin(), ip.end(), IPRegex);
std::sregex_iterator end;
if (begin == end) return; // m_Valid = false
std::smatch match = *begin;
std::uint8_t octet1 = std::stoul(std::string(match[1]));
std::uint8_t octet2 = std::stoul(std::string(match[2]));
std::uint8_t octet3 = std::stoul(std::string(match[3]));
std::uint8_t octet4 = std::stoul(std::string(match[4]));
m_Address = static_cast<std::uint32_t>((octet1 << 24) | (octet2 << 16) | (octet3 << 8) | octet4);
m_Valid = true;
}
IPAddress::IPAddress(const std::wstring& ip)
: m_Address(0), m_Valid(false) {
std::wsregex_iterator begin(ip.begin(), ip.end(), IPRegexW);
std::wsregex_iterator end;
if (begin == end) return; // m_Valid = false
std::wsmatch match = *begin;
std::uint8_t octet1 = std::stoul(match[1]);
std::uint8_t octet2 = std::stoul(match[2]);
std::uint8_t octet3 = std::stoul(match[3]);
std::uint8_t octet4 = std::stoul(match[4]);
m_Address = static_cast<std::uint32_t>((octet1 << 24) | (octet2 << 16) | (octet3 << 8) | octet4);
m_Valid = true;
}
/* Initialize by octets */
IPAddress::IPAddress(uint8_t octet1, uint8_t octet2, uint8_t octet3, uint8_t octet4) noexcept
: m_Valid(true) {
m_Address = static_cast<std::uint32_t>((octet1 << 24) | (octet2 << 16) | (octet3 << 8) | octet4);
}
/* Get the specific octet */
uint8_t IPAddress::GetOctet(uint8_t num) const {
if (num == 0 || num > 4) throw std::invalid_argument("Invalid argument in IPAddress:GetOctet.");
return (m_Address >> (8 * (4 - num))) & 0xFF;
}
/* Set the specific octet. 1-4 */
void IPAddress::SetOctet(uint8_t num, uint8_t value) {
if (num == 0 || num > 4) throw std::invalid_argument("Invalid argument in IPAddress:GetOctet.");
uint8_t octets[4];
for (int i = 0; i < 4; ++i)
octets[i] = (m_Address >> ((3 - i) * 8)) & 0xFF;
octets[num - 1] = value;
m_Address = static_cast<std::uint32_t>((octets[0] << 24) | (octets[1] << 16) | (octets[2] << 8) | octets[3]);
}
IPAddress IPAddress::LocalAddress() {
return IPAddress(127, 0, 0, 1);
}
std::string IPAddress::ToString() const {
std::stringstream ss;
for (int i = 0; i < 4; ++i) {
if (i != 0) ss << ".";
ss << static_cast<unsigned int>(GetOctet(i + 1));
}
return ss.str();
}
bool IPAddress::operator==(const IPAddress& right) {
return m_Address == right.m_Address;
}
bool IPAddress::operator!=(const IPAddress& right) {
return !(*this == right);
}
bool IPAddress::operator==(bool b) {
return IsValid() == b;
}
std::ostream& operator<<(std::ostream& os, const IPAddress& addr) {
return os << addr.ToString();
}
std::wostream& operator<<(std::wostream& os, const IPAddress& addr) {
std::string str = addr.ToString();
return os << std::wstring(str.begin(), str.end());
}
} // ns network
} // ns mc