c++ boost 苹果内购 IAP验证

// 1111.cpp: 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <cstdlib>
#include <iostream>
#include <boost/bind.hpp>
#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>

enum { max_length = 1024 };

class client
{
public:
    client(boost::asio::io_service& io_service,
        boost::asio::ssl::context& context,
        boost::asio::ip::tcp::resolver::iterator endpoint_iterator)
        : socket_(io_service, context)
    {
        //socket_.set_verify_mode(boost::asio::ssl::verify_peer);
        socket_.set_verify_mode(boost::asio::ssl::context::verify_none);
        socket_.set_verify_callback(
            boost::bind(&client::verify_certificate, this, _1, _2));

        boost::asio::async_connect(socket_.lowest_layer(), endpoint_iterator,
            boost::bind(&client::handle_connect, this,
                boost::asio::placeholders::error));
    }

    bool verify_certificate(bool preverified,
        boost::asio::ssl::verify_context& ctx)
    {
        // The verify callback can be used to check whether the certificate that is
        // being presented is valid for the peer. For example, RFC 2818 describes
        // the steps involved in doing this for HTTPS. Consult the OpenSSL
        // documentation for more details. Note that the callback is called once
        // for each certificate in the certificate chain, starting from the root
        // certificate authority.

        // In this example we will simply print the certificate's subject name.
        char subject_name[256];
        X509* cert = X509_STORE_CTX_get_current_cert(ctx.native_handle());
        X509_NAME_oneline(X509_get_subject_name(cert), subject_name, 256);
        std::cout << "Verifying " << subject_name << "\n";

        return preverified;
    }

    void handle_connect(const boost::system::error_code& error)
    {
        if (!error)
        {
            socket_.async_handshake(boost::asio::ssl::stream_base::client,
                boost::bind(&client::handle_handshake, this,
                    boost::asio::placeholders::error));
        }
        else
        {
            std::cout << "Connect failed: " << error.message() << "\n";
        }
    }

    void handle_handshake(const boost::system::error_code& error)
    {
        if (!error)
        {
            std::cout << "Enter message: ";
        //    std::cin.getline(request_, max_length);
            size_t request_length = strlen(request_);

            std::stringstream ss;
            ss << "POST " << " https://sandbox.itunes.apple.com/verifyReceipt HTTP/1.1\r\n";
            ss << "User-Agent: Fiddler\r\n";
            ss << "Host: sandbox.itunes.apple.com\r\n";
            ss << "Accept: */*\r\n";
            ss << "Connection: close\r\n\r\n";
            
            std::string str = ss.str();

            boost::asio::async_write(socket_,
                boost::asio::buffer(str, str.length()),
                boost::bind(&client::handle_write, this,
                    boost::asio::placeholders::error,
                    boost::asio::placeholders::bytes_transferred));
        }
        else
        {
            std::cout << "Handshake failed: " << error.message() << "\n";
        }
    }

    void handle_write(const boost::system::error_code& error,
        size_t bytes_transferred)
    {
        if (!error)
        {
            /*boost::asio::async_read(socket_,
                boost::asio::buffer(reply_, bytes_transferred),
                boost::bind(&client::handle_read, this,
                    boost::asio::placeholders::error,
                    boost::asio::placeholders::bytes_transferred));*/
            boost::asio::streambuf response;
            boost::asio::read_until(socket_, response, "\r\n");
            std::istream response_stream(&response);
            std::string http_version;
            response_stream >> http_version;
            unsigned int status_code;
            response_stream >> status_code;
            std::string status_message;
            std::getline(response_stream, status_message);
            if (!response_stream || http_version.substr(0, 5) != "HTTP/")
            {
                std::cout << "Invalid response\n";
                return ;
            }
            if (status_code != 200)
            {
                std::cout << "Response returned with status code " << status_code << "\n";
                return ;
            }

            // Read the response headers, which are terminated by a blank line.
            boost::asio::read_until(socket_, response, "\r\n\r\n");

            // Process the response headers.
            std::string header;
            while (std::getline(response_stream, header) && header != "\r")
                std::cout << header << "\n";
            std::cout << "\n";

            // Write whatever content we already have to output.
            if (response.size() > 0)
                std::cout << &response;


            try{    // Read until EOF, writing data to output as we go.
                boost::system::error_code error;
                char buf[500] = { 0 };
                while ( socket_.read_some(boost::asio::buffer(buf, 500), error)>0 )
                {
                    boost::system::error_code tmp = error;
                    std::cout << buf;
                }
                
                if (error != boost::asio::error::eof)
                    throw boost::system::system_error(error);
                /**
                * 21000 App Store不能读取你提供的JSON对象
                * 21002 receipt-data域的数据有问题
                * 21003 receipt无法通过验证
                * 21004 提供的shared secret不匹配你账号中的shared secret
                * 21005 receipt服务器当前不可用
                * 21006 receipt合法，但是订阅已过期。服务器接收到这个状态码时，receipt数据仍然会解码并一起发送
                * 21007 receipt是Sandbox receipt，但却发送至生产系统的验证服务
                * 21008 receipt是生产receipt，但却发送至Sandbox环境的验证服务
                */
                std::cout << "\r\n\nfinished !!\r\n";
            }
            catch (std::exception& e)
            {
                std::cout << "Exception: " << e.what() << "\n";
                return;
            }


        }
        else
        {
            std::cout << "Write failed: " << error.message() << "\n";
        }
    }

    void handle_read(const boost::system::error_code& error,
        size_t bytes_transferred)
    {
        if (!error)
        {
            std::cout << "Reply: ";
            std::cout.write(reply_, bytes_transferred);
            std::cout << "\n";
        }
        else
        {
            std::cout << "Read failed: " << error.message() << "\n";
        }
    }

private:
    boost::asio::ssl::stream<boost::asio::ip::tcp::socket> socket_;
    char request_[max_length];
    char reply_[max_length];
};

int main(int argc, char* argv[])
{
    try
    {

        boost::asio::io_service io_service;

        boost::asio::ip::tcp::resolver resolver(io_service);
        boost::asio::ip::tcp::resolver::query query("buy.itunes.apple.com", "443");
        boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);

        boost::asio::ssl::context ctx(boost::asio::ssl::context::sslv23);
        ctx.set_verify_mode(boost::asio::ssl::context::verify_none);
        //ctx.load_verify_file("ca.pem");

        client c(io_service, ctx, iterator);

        io_service.run();
    }
    catch (std::exception& e)
    {
        std::cerr << "Exception: " << e.what() << "\n";
    }

    return 0;
}