Pet*_*vic 6 c++ boost-asio boost-beast
我已经修改了 http_sync 示例以通过代理连接，我已经用 Wireshark 进行了测试，问题是在我发送 http 连接请求后，代理返回代码 200 OK，而我的程序无法读取，它得到在 http::read 上等待大约 1 分钟，然后服务器断开了我的连接。我试过解决这个问题，只是没有读取响应，但是当我尝试进行 ssl 握手时，我收到一个错误：未知协议（就wireshark 而言，我的 ssl 握手发送了一个客户端你好，然后我收到了完整的服务器你好，但我的程序在此期间发送了一个 FIN 并给了我错误，我认为这是因为他阅读了 200 OK 而不是服务器的答案并感到困惑）。所以我想我的问题是，有没有办法解决这个问题？我不知道为什么 http::read 卡住了。它在没有中间代理的情况下正常工作。这是我的代码：
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
namespace http = boost::beast::http; // from <boost/beast/http.hpp>
int main(int argc, char** argv)
{
try
{
// Check command line arguments.
auto const target = "www.discogs.com:443";
auto const host = "192.116.142.153";
auto const port = "443";
int version = 11;
// The io_context is required for all I/O
boost::asio::io_context ioc;
// These objects perform our I/O
ssl::context ctx{ ssl::context::sslv23_client };
load_root_certificates(ctx);
tcp::resolver resolver{ ioc };
ssl::stream<tcp::socket> stream{ ioc, ctx };
tcp::resolver::iterator sock = resolver.resolve("192.116.142.153", "8080");
boost::asio::connect(stream.next_layer(), sock);
http::request<http::string_body> req1{ http::verb::connect, target, version };
req1.set(http::field::host, target);
http::write(stream.next_layer(), req1);
boost::beast::flat_buffer buffer;
http::response<http::dynamic_body> res;
http::read(stream.next_layer(), buffer, res);
// Write the message to standard out
std::cout << res << std::endl;
// Perform the SSL handshake
stream.handshake(ssl::stream_base::client);
// Set up an HTTP GET request message
http::request<http::string_body> req{ http::verb::get, target, version };
req.set(http::field::host, host);
req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
// Send the HTTP request to the remote host
http::write(stream, req);
// This buffer is used for reading and must be persisted
//boost::beast::flat_buffer buffer;
// Declare a container to hold the response
//http::response<http::dynamic_body> res;
// Receive the HTTP response
http::read(stream, buffer, res);
// Write the message to standard out
std::cout << res << std::endl;
getchar();
// Gracefully close the stream
boost::system::error_code ec;
stream.next_layer().shutdown(boost::asio::ip::tcp::socket::shutdown_send);
if (ec == boost::asio::error::eof)
{
// Rationale:
// http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
ec.assign(0, ec.category());
}
if (ec)
throw boost::system::system_error{ ec };
// If we get here then the connection is closed gracefully
}
catch (std::exception const& e)
{
std::cerr << "Error: " << e.what() << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
搜索文档让proxy我找到了skip(). 这导致我使用我自己的响应解析器实例：
http::response<http::empty_body> res;\nhttp::parser<false, http::empty_body> p(res);\np.skip(true);\nhttp::read(stream.next_layer(), buffer, p);\n这样可行。好吧，我将请求目标更改为有效的目标。在本例中，我通过您的 Fortinet 代理检索了https://www.boost.org/users/license.html ：
\n\n#include <boost/asio.hpp>\n#include <boost/asio/ssl.hpp>\n#include <boost/beast.hpp>\n\nusing tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>\nnamespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>\nnamespace http = boost::beast::http; // from <boost/beast/http.hpp>\n\nstatic void load_root_certificates(ssl::context &ctx);\n\nint main() try {\n // Check command line arguments.\n auto const target = "www.boost.org:443";\n auto const host = "www.boost.org";\n int version = 11;\n\n // The io_context is required for all I/O\n boost::asio::io_context ioc;\n\n // These objects perform our I/O\n\n ssl::context ctx{ ssl::context::sslv23_client };\n\n load_root_certificates(ctx);\n\n tcp::resolver resolver{ ioc };\n ssl::stream<tcp::socket> stream{ ioc, ctx };\n\n stream.next_layer().connect({boost::asio::ip::address_v4::from_string("192.116.142.153"), 8080});\n\n {\n http::request<http::string_body> req1{ http::verb::connect, target, version };\n req1.set(http::field::host, target);\n\n http::write(stream.next_layer(), req1);\n\n boost::beast::flat_buffer buffer;\n\n http::response<http::empty_body> res;\n http::parser<false, http::empty_body> p(res);\n p.skip(true);\n http::read(stream.next_layer(), buffer, p);\n\n // Write the message to standard out\n std::cout << res << std::endl;\n }\n\n // Perform the SSL handshake\n stream.handshake(ssl::stream_base::client);\n\n // Set up an HTTP GET request message\n {\n http::request<http::string_body> req{ http::verb::get, "/users/license.html", version };\n req.set(http::field::host, host);\n req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);\n\n // Send the HTTP request to the remote host\n http::write(stream, req);\n\n boost::beast::flat_buffer buffer;\n http::response<http::dynamic_body> res;\n http::read(stream, buffer, res);\n // Write the message to standard out\n std::cout << res << std::endl;\n }\n\n getchar();\n\n // Gracefully close the stream\n boost::system::error_code ec;\n stream.next_layer().shutdown(boost::asio::ip::tcp::socket::shutdown_send);\n if (ec == boost::asio::error::eof) {\n // Rationale:\n // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error\n ec.assign(0, ec.category());\n }\n if (ec)\n throw boost::system::system_error{ ec };\n // If we get here then the connection is closed gracefully\n} catch (std::exception const &e) {\n std::cerr << "Error: " << e.what() << std::endl;\n return EXIT_FAILURE;\n}\n\n\nnamespace detail {\n\nstatic void load_root_certificates(ssl::context &ctx, boost::system::error_code &ec) {\n std::string const cert =\n /* This is the DigiCert root certificate.\n\n CN = DigiCert High Assurance EV Root CA\n OU = www.digicert.com\n O = DigiCert Inc\n C = US\n\n Valid to: Sunday, ?November ?9, ?2031 5:00:00 PM\n\n Thumbprint(sha1):\n 5f b7 ee 06 33 e2 59 db ad 0c 4c 9a e6 d3 8f 1a 61 c7 dc 25\n */\n "-----BEGIN CERTIFICATE-----\\n"\n "MIIDxTCCAq2gAwIBAgIQAqxcJmoLQJuPC3nyrkYldzANBgkqhkiG9w0BAQUFADBs\\n"\n "MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3\\n"\n "d3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j\\n"\n "ZSBFViBSb290IENBMB4XDTA2MTExMDAwMDAwMFoXDTMxMTExMDAwMDAwMFowbDEL\\n"\n "MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3\\n"\n "LmRpZ2ljZXJ0LmNvbTErMCkGA1UEAxMiRGlnaUNlcnQgSGlnaCBBc3N1cmFuY2Ug\\n"\n "RVYgUm9vdCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMbM5XPm\\n"\n "+9S75S0tMqbf5YE/yc0lSbZxKsPVlDRnogocsF9ppkCxxLeyj9CYpKlBWTrT3JTW\\n"\n "PNt0OKRKzE0lgvdKpVMSOO7zSW1xkX5jtqumX8OkhPhPYlG++MXs2ziS4wblCJEM\\n"\n "xChBVfvLWokVfnHoNb9Ncgk9vjo4UFt3MRuNs8ckRZqnrG0AFFoEt7oT61EKmEFB\\n"\n "Ik5lYYeBQVCmeVyJ3hlKV9Uu5l0cUyx+mM0aBhakaHPQNAQTXKFx01p8VdteZOE3\\n"\n "hzBWBOURtCmAEvF5OYiiAhF8J2a3iLd48soKqDirCmTCv2ZdlYTBoSUeh10aUAsg\\n"\n "EsxBu24LUTi4S8sCAwEAAaNjMGEwDgYDVR0PAQH/BAQDAgGGMA8GA1UdEwEB/wQF\\n"\n "MAMBAf8wHQYDVR0OBBYEFLE+w2kD+L9HAdSYJhoIAu9jZCvDMB8GA1UdIwQYMBaA\\n"\n "FLE+w2kD+L9HAdSYJhoIAu9jZCvDMA0GCSqGSIb3DQEBBQUAA4IBAQAcGgaX3Nec\\n"\n "nzyIZgYIVyHbIUf4KmeqvxgydkAQV8GK83rZEWWONfqe/EW1ntlMMUu4kehDLI6z\\n"\n "eM7b41N5cdblIZQB2lWHmiRk9opmzN6cN82oNLFpmyPInngiK3BD41VHMWEZ71jF\\n"\n "hS9OMPagMRYjyOfiZRYzy78aG6A9+MpeizGLYAiJLQwGXFK3xPkKmNEVX58Svnw2\\n"\n "Yzi9RKR/5CYrCsSXaQ3pjOLAEFe4yHYSkVXySGnYvCoCWw9E1CAx2/S6cCZdkGCe\\n"\n "vEsXCS+0yx5DaMkHJ8HSXPfqIbloEpw8nL+e/IBcm2PN7EeqJSdnoDfzAIJ9VNep\\n"\n "+OkuE6N36B9K\\n"\n "-----END CERTIFICATE-----\\n"\n /* This is the GeoTrust root certificate.\n\n CN = GeoTrust Global CA\n O = GeoTrust Inc.\n C = US\n Valid to: Friday, \xe2\x80\x8eMay \xe2\x80\x8e20, \xe2\x80\x8e2022 9:00:00 PM\n\n Thumbprint(sha1):\n \xe2\x80\x8ede 28 f4 a4 ff e5 b9 2f a3 c5 03 d1 a3 49 a7 f9 96 2a 82 12\n */\n "-----BEGIN CERTIFICATE-----\\n"\n "MIIDxTCCAq2gAwIBAgIQAqxcJmoLQJuPC3nyrkYldzANBgkqhkiG9w0BAQUFADBs\\n"\n "MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3\\n"\n "d3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j\\n"\n "ZSBFViBSb290IENBMB4XDTA2MTExMDAwMDAwMFoXDTMxMTExMDAwMDAwMFowbDEL\\n"\n "MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3\\n"\n "LmRpZ2ljZXJ0LmNvbTErMCkGA1UEAxMiRGlnaUNlcnQgSGlnaCBBc3N1cmFuY2Ug\\n"\n "RVYgUm9vdCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMbM5XPm\\n"\n "+9S75S0tMqbf5YE/yc0lSbZxKsPVlDRnogocsF9ppkCxxLeyj9CYpKlBWTrT3JTW\\n"\n "PNt0OKRKzE0lgvdKpVMSOO7zSW1xkX5jtqumX8OkhPhPYlG++MXs2ziS4wblCJEM\\n"\n "xChBVfvLWokVfnHoNb9Ncgk9vjo4UFt3MRuNs8ckRZqnrG0AFFoEt7oT61EKmEFB\\n"\n "Ik5lYYeBQVCmeVyJ3hlKV9Uu5l0cUyx+mM0aBhakaHPQNAQTXKFx01p8VdteZOE3\\n"\n "hzBWBOURtCmAEvF5OYiiAhF8J2a3iLd48soKqDirCmTCv2ZdlYTBoSUeh10aUAsg\\n"\n "EsxBu24LUTi4S8sCAwEAAaNjMGEwDgYDVR0PAQH/BAQDAgGGMA8GA1UdEwEB/wQF\\n"\n "MAMBAf8wHQYDVR0OBBYEFLE+w2kD+L9HAdSYJhoIAu9jZCvDMB8GA1UdIwQYMBaA\\n"\n "FLE+w2kD+L9HAdSYJhoIAu9jZCvDMA0GCSqGSIb3DQEBBQUAA4IBAQAcGgaX3Nec\\n"\n "nzyIZgYIVyHbIUf4KmeqvxgydkAQV8GK83rZEWWONfqe/EW1ntlMMUu4kehDLI6z\\n"\n "eM7b41N5cdblIZQB2lWHmiRk9opmzN6cN82oNLFpmyPInngiK3BD41VHMWEZ71jF\\n"\n "hS9OMPagMRYjyOfiZRYzy78aG6A9+MpeizGLYAiJLQwGXFK3xPkKmNEVX58Svnw2\\n"\n "Yzi9RKR/5CYrCsSXaQ3pjOLAEFe4yHYSkVXySGnYvCoCWw9E1CAx2/S6cCZdkGCe\\n"\n "vEsXCS+0yx5DaMkHJ8HSXPfqIbloEpw8nL+e/IBcm2PN7EeqJSdnoDfzAIJ9VNep\\n"\n "+OkuE6N36B9K\\n"\n "-----END CERTIFICATE-----\\n";\n\n ctx.add_certificate_authority(boost::asio::buffer(cert.data(), cert.size()), ec);\n if (ec)\n return;\n}\n\n} // namespace detail\n\nstatic void load_root_certificates(ssl::context &ctx) {\n boost::system::error_code ec;\n detail::load_root_certificates(ctx, ec);\n if (ec)\n throw boost::system::system_error{ ec };\n}\n印刷
\n\nHTTP/1.1 200 OK\n\n\nHTTP/1.1 200 OK\nDate: Sun, 15 Apr 2018 00:32:52 GMT\nServer: Apache/2.2.15 (CentOS)\nAccept-Ranges: bytes\nConnection: close\nTransfer-Encoding: chunked\nContent-Type: text/html; charset=UTF-8\n\n8ee3\n<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"\n "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">\n\n<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">\n<head>\n <title>Boost Software License</title>\n <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" />\n <link rel="icon" href="/favicon.ico" type="image/ico" />\n <link rel="stylesheet" type="text/css" href="../style-v2/section-boost.css" />\n <!--[if IE 7]> <style type="text/css"> body { behavior: url(/style-v2/csshover3.htc); } </style> <![endif]-->\n</head><!--\nNote: Editing website content is documented at:\nhttps://www.boost.org/development/website_updating.html\n-->\n\n<body>\n <div id="heading">\n <div class="heading-inner">\n <div class="heading-placard"></div>\n\n <h1 class="heading-title">\n <a href="/">\n <img src="/gfx/space.png" alt= "Boost C++ Libraries" class="heading-logo" />\n <span class="heading-boost">Boost</span>\n <span class="heading-cpplibraries">C++ Libraries</span>\n </a></h1>\n\n <p class="heading-quote">\n <q>...one of the most highly\n regarded and expertly designed C++ library projects in the\n world.</q> <span class="heading-attribution">— <a href=\n "http://www.gotw.ca/" class="external">Herb Sutter</a> and <a href=\n "http://en.wikipedia.org/wiki/Andrei_Alexandrescu" class="external">Andrei\n Alexandrescu</a>, <a href=\n "http://safari.awprofessional.com/?XmlId=0321113586" class="external">C++\n Coding Standards</a></span></p>\n</div>\n\n </div>\n\n <div id="body">\n <div id="body-inner">\n <div id="content">\n <div class="section" id="intro">\n <div class="section-0">\n <div class="section-title">\n <h1>Boost Software License</h1>\n </div>\n\n <div class="section-body">\n <ul class="toc">\n <li><a href="../LICENSE_1_0.txt">License text</a></li>\n（其余部分被剪掉）
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