Kylin/HttpProxy/NetworkUtility.cpp

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2023-07-21 11:53:19 +08:00
#include "NetworkUtility.h"
#include "BoostLog.h"
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/beast/ssl.hpp>
#include <boost/beast/version.hpp>
#include <optional>
static std::optional<boost::beast::ssl_stream<boost::beast::tcp_stream>>
makeSslStream(boost::asio::io_context &ioContext, const std::string_view &host, const std::string_view &port,
boost::system::error_code &error);
std::string Https::get(boost::asio::io_context &ioContext, const std::string_view &host, const std::string_view &port,
const std::string_view &url, boost::system::error_code &error, Http::Version version) {
namespace beast = boost::beast;
namespace http = boost::beast::http;
auto stream = makeSslStream(ioContext, host, port, error);
if (!stream) return std::string();
http::request<http::string_body> req{http::verb::get, url, static_cast<unsigned>(version)};
req.set(http::field::host, host);
req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
http::write(*stream, req, error);
if (error) {
// LOG(error) << error.message();
return std::string();
}
beast::flat_buffer buffer;
http::response_parser<http::dynamic_body> parser;
parser.body_limit(std::numeric_limits<std::uint64_t>::max());
http::read(*stream, buffer, parser, error);
if (error) {
LOG(error) << error.message();
return std::string();
}
beast::error_code ec;
stream->shutdown(ec);
return boost::beast::buffers_to_string(parser.get().body().data());
}
std::string Https::post(boost::asio::io_context &ioContext, const std::string_view &host, const std::string_view &port,
const std::string_view &url, const std::string_view &body, boost::system::error_code &error,
Http::Version version) {
namespace beast = boost::beast;
namespace http = boost::beast::http;
auto stream = makeSslStream(ioContext, host, port, error);
if (!stream) return std::string();
http::request<http::string_body> req{http::verb::post, url.data(), static_cast<unsigned>(version)};
req.set(http::field::host, host);
req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
req.body() = body;
req.prepare_payload();
http::write(*stream, req, error);
if (error) {
LOG(error) << error.message();
return std::string();
}
beast::flat_buffer buffer;
http::response<boost::beast::http::dynamic_body> response;
http::read(*stream, buffer, response, error);
if (error) {
LOG(error) << error.message();
return std::string();
}
beast::error_code ec;
stream->shutdown(ec);
return boost::beast::buffers_to_string(response.body().data());
}
std::string Https::put(boost::asio::io_context &ioContext, const std::string &host, const std::string &port,
const std::string &url, const std::string &body, boost::system::error_code &error,
Http::Version version) {
namespace beast = boost::beast;
namespace http = boost::beast::http;
auto stream = makeSslStream(ioContext, host, port, error);
if (!stream) return std::string();
http::request<http::string_body> req{http::verb::put, url.data(), static_cast<unsigned>(version)};
req.set(http::field::host, host);
req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
req.body() = body;
req.prepare_payload();
http::write(*stream, req, error);
if (error) {
LOG(error) << error.message();
return std::string();
}
beast::flat_buffer buffer;
http::response<boost::beast::http::dynamic_body> response;
http::read(*stream, buffer, response, error);
if (error) {
LOG(error) << error.message();
return std::string();
}
beast::error_code ec;
stream->shutdown(ec);
return boost::beast::buffers_to_string(response.body().data());
}
static std::optional<boost::beast::ssl_stream<boost::beast::tcp_stream>>
makeSslStream(boost::asio::io_context &ioContext, const std::string_view &host, const std::string_view &port,
boost::system::error_code &error) {
namespace beast = boost::beast;
namespace http = boost::beast::http;
namespace asio = boost::asio; // from <boost/asio.hpp>
using tcp = asio::ip::tcp;
namespace ssl = asio::ssl;
ssl::context sslContext(ssl::context::sslv23_client);
sslContext.set_default_verify_paths(error);
if (error) {
LOG(error) << error.message();
return std::nullopt;
}
boost::asio::ip::tcp::resolver resolver(ioContext);
beast::ssl_stream<beast::tcp_stream> stream(ioContext, sslContext);
auto const results = resolver.resolve(host, port, error);
if (error) {
LOG(error) << error.message();
return std::nullopt;
}
beast::get_lowest_layer(stream).connect(results);
stream.handshake(ssl::stream_base::client);
return std::make_optional(std::move(stream));
}
std::vector<Http::ParseItem> Http::parseFormData(const std::string_view &buffer) {
std::vector<ParseItem> ret;
auto pos = buffer.find("\r\n");
std::string_view m_spliter = buffer.substr(0, pos);
size_t m_end = buffer.rfind(m_spliter);
pos = 0;
while (pos != m_end) {
pos = buffer.find(m_spliter, pos);
if (pos == m_end) break;
ParseItem item;
auto dataSpliterPos = buffer.find("\r\n\r\n", pos);
item.begin = dataSpliterPos + 4;
item.end = buffer.find(m_spliter, pos + 1) - 2;
auto meta = buffer.substr(pos, dataSpliterPos - pos);
auto beginPos = meta.find("filename=\"") + 10;
auto endPos = meta.find("\"", beginPos);
item.filename = meta.substr(beginPos, endPos - beginPos);
pos++;
ret.push_back(item);
}
return ret;
}
uint64_t Network::htonll(uint64_t val) {
return (static_cast<uint64_t>(htonl(static_cast<uint32_t>(val))) << 32) + htonl(val >> 32);
}
uint64_t Network::ntohll(uint64_t val) {
return (static_cast<uint64_t>(ntohl(static_cast<uint32_t>(val))) << 32) + ntohl(val >> 32);
}
bool Network::isConnected(const std::string_view &host, size_t size) {
std::ostringstream oss;
#ifdef __linux__
oss << "ping " << host << " -q -W2 -c" << size;
#else
oss << "ping -n " << size << " " << host;
#endif
auto ret = std::system(oss.str().data());
return ret == 0;
}
#ifdef WIN32
#include <winsock.h>
#endif
Network::Network(int argc, char *argv[]) {
#ifdef WIN32
WORD wVersionRequested = MAKEWORD(2, 2);
WSADATA wsaData;
::WSAStartup(wVersionRequested, &wsaData);
LOG(info) << "WinSock initialized complete.";
#endif
}
Network::~Network() {
#ifdef WIN32
::WSACleanup();
#endif
}