cl_http::ssl_http_session Class Reference

#include <ssl_http_session.hpp>

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Public Member Functions
	ssl_http_session (boost::asio::any_io_executor ioc, boost::asio::ssl::context &ssl_context, const std::function< void(const TResponse &)> response)
virtual	~ssl_http_session ()
void	run (const std::string &host, const std::string &target, const boost::beast::http::verb http_method, const int &version) override
std::string	getPort () override
Public Member Functions inherited from cl_http::http_session_base
virtual	~http_session_base ()

Private Member Functions
void	on_resolve (boost::beast::error_code ec, boost::asio::ip::tcp::resolver::results_type results) override
void	fail (boost::beast::error_code ec, const char *what) override
void	on_connect (boost::beast::error_code ec, boost::asio::ip::tcp::resolver::results_type::endpoint_type) override
void	on_handshake (boost::beast::error_code ec) override
void	on_write (boost::beast::error_code ec, std::size_t bytes_transferred) override
void	on_read (boost::beast::error_code ec, std::size_t bytes_transferred) override
void	on_shutdown (boost::beast::error_code ec) override
void	setBody (const std::string &body) override
void	setHeaders (const std::unordered_map< std::string, std::string > &headers) override
void	appendToHeader (const std::string &key, const std::string &val)

Private Attributes
const std::string	kPort = "443"
std::function< void(const TResponse &)>	onResponse
boost::asio::ip::tcp::resolver	resolver_
boost::beast::ssl_stream< boost::beast::tcp_stream >	stream_
boost::beast::flat_buffer	buffer_
boost::beast::http::request< boost::beast::http::string_body >	req_
TResponse	res_

Additional Inherited Members
Public Types inherited from cl_http::http_session_base
using	TResponse = boost::beast::http::response< boost::beast::http::string_body >

Detailed Description

Definition at line 37 of file ssl_http_session.hpp.

Constructor & Destructor Documentation

ssl_http_session()

cl_http::ssl_http_session::ssl_http_session	(	boost::asio::any_io_executor	ioc,
		boost::asio::ssl::context &	ssl_context,
		const std::function< void(const TResponse &)>	response
	)

Definition at line 27 of file ssl_http_session.cpp.

: onResponse{response}, resolver_{ioc}, stream_{ioc, ssl_context}
{
}

~ssl_http_session()

virtual cl_http::ssl_http_session::~ssl_http_session ( )

inlinevirtual

Definition at line 47 of file ssl_http_session.hpp.

{}

Member Function Documentation

appendToHeader()

void cl_http::ssl_http_session::appendToHeader ( const std::string &  key, const std::string &  val  )

private

Definition at line 44 of file ssl_http_session.cpp.

{
  req_.set(key, val);
}

References req_.

Referenced by setHeaders().

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fail()

void cl_http::ssl_http_session::fail ( boost::beast::error_code  ec, const char *  what  )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 87 of file ssl_http_session.cpp.

{
  std::cout << "Failure!..." << std::endl;
  std::cerr << what << ": " << ec.message() << "\n";
  res_.result(boost::beast::http::status::bad_request);
  res_.reason() = ec.message();
  onResponse(res_);
}

References onResponse, and res_.

Referenced by on_connect(), on_handshake(), on_read(), on_resolve(), and on_write().

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getPort()

std::string cl_http::ssl_http_session::getPort ( )

inlineoverridevirtual

Implements cl_http::http_session_base.

Definition at line 54 of file ssl_http_session.hpp.

{ return kPort; }

References kPort.

on_connect()

void cl_http::ssl_http_session::on_connect ( boost::beast::error_code  ec, boost::asio::ip::tcp::resolver::results_type::endpoint_type    )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 96 of file ssl_http_session.cpp.

{
  if (ec) return fail(ec, "connect");
 
  // Set a timeout on the operation
  boost::beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(1));
 
  // Send the HTTP request to the remote host
  stream_.async_handshake(
    boost::asio::ssl::stream_base::client,
    boost::beast::bind_front_handler(&ssl_http_session::on_handshake, shared_from_this()));
}

References fail(), on_handshake(), and stream_.

Referenced by on_resolve().

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on_handshake()

void cl_http::ssl_http_session::on_handshake ( boost::beast::error_code  ec )

overrideprivatevirtual

Reimplemented from cl_http::http_session_base.

Definition at line 110 of file ssl_http_session.cpp.

{
  if (ec) return fail(ec, "handshake");
 
  // Set a timeout on the operation
  boost::beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(1));
 
  // Send the HTTP request to the remote host
  boost::beast::http::async_write(
    stream_, req_,
    boost::beast::bind_front_handler(&ssl_http_session::on_write, shared_from_this()));
}

References fail(), on_write(), req_, and stream_.

Referenced by on_connect().

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on_read()

void cl_http::ssl_http_session::on_read ( boost::beast::error_code  ec, std::size_t  bytes_transferred  )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 135 of file ssl_http_session.cpp.

{
  boost::ignore_unused(bytes_transferred);
 
  if (ec) return fail(ec, "read");
 
  boost::beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(1));
 
  // Gracefully close the socket
  // stream_.socket().shutdown(boost::asio::ip::tcp::socket::shutdown_both, ec);
  stream_.async_shutdown(
    boost::beast::bind_front_handler(&ssl_http_session::on_shutdown, shared_from_this()));
}

References fail(), on_shutdown(), and stream_.

Referenced by on_write().

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on_resolve()

void cl_http::ssl_http_session::on_resolve ( boost::beast::error_code  ec, boost::asio::ip::tcp::resolver::results_type  results  )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 74 of file ssl_http_session.cpp.

{
  if (ec) return fail(ec, "resolve");
 
  // Set a timeout on the operation
  boost::beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(1));
 
  // Make the connection on the IP address we get from a lookup
  boost::beast::get_lowest_layer(stream_).async_connect(
    results, boost::beast::bind_front_handler(&ssl_http_session::on_connect, shared_from_this()));
}

References fail(), on_connect(), and stream_.

Referenced by run().

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on_shutdown()

void cl_http::ssl_http_session::on_shutdown ( boost::beast::error_code  ec )

overrideprivatevirtual

Reimplemented from cl_http::http_session_base.

Definition at line 149 of file ssl_http_session.cpp.

{
  // not_connected happens sometimes so don't bother reporting it.
  if (ec == boost::asio::error::eof)
  {
    // Rationale:
    // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
    ec = {};
  }
  // if (ec) return fail(ec, "shutdown");
 
  // If we get here then the connection is closed gracefully
  onResponse(res_);
}

References onResponse, and res_.

Referenced by on_read().

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on_write()

void cl_http::ssl_http_session::on_write ( boost::beast::error_code  ec, std::size_t  bytes_transferred  )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 123 of file ssl_http_session.cpp.

{
  boost::ignore_unused(bytes_transferred);
 
  if (ec) return fail(ec, "write");
 
  // Receive the HTTP response
  boost::beast::http::async_read(
    stream_, buffer_, res_,
    boost::beast::bind_front_handler(&ssl_http_session::on_read, shared_from_this()));
}

References buffer_, fail(), on_read(), res_, and stream_.

Referenced by on_handshake().

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run()

void cl_http::ssl_http_session::run ( const std::string &  host, const std::string &  target, const boost::beast::http::verb  http_method, const int &  version  )

overridevirtual

Implements cl_http::http_session_base.

Definition at line 49 of file ssl_http_session.cpp.

{
  // Set up an HTTP request
  req_.version(version);
  req_.method(http_method);
  req_.target(target);
  req_.set(boost::beast::http::field::host, host);
  req_.set(boost::beast::http::field::user_agent, BOOST_BEAST_VERSION_STRING);
 
  // Set an SNI to deal with CDNs
  if (!SSL_set_tlsext_host_name(stream_.native_handle(), host.c_str()))
  {
    boost::system::error_code ec{
      static_cast<int>(::ERR_get_error()), boost::asio::error::get_ssl_category()};
    std::cerr << ec.message() << "\n";
    return;
  }
  // Look up the domain name
  resolver_.async_resolve(
    host.c_str(), kPort.c_str(),
    boost::beast::bind_front_handler(&ssl_http_session::on_resolve, shared_from_this()));
}

References kPort, on_resolve(), req_, resolver_, and stream_.

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setBody()

void cl_http::ssl_http_session::setBody ( const std::string &  body )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 34 of file ssl_http_session.cpp.

{ req_.body() = body; }

References req_.

setHeaders()

void cl_http::ssl_http_session::setHeaders ( const std::unordered_map< std::string, std::string > &  headers )

overrideprivatevirtual

Implements cl_http::http_session_base.

Definition at line 36 of file ssl_http_session.cpp.

{
  for (const auto & [key, val] : headers)
  {
    this->appendToHeader(key, val);
  }
}

References appendToHeader().

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Member Data Documentation

buffer_

boost::beast::flat_buffer cl_http::ssl_http_session::buffer_

private

Definition at line 78 of file ssl_http_session.hpp.

Referenced by on_write().

kPort

const std::string cl_http::ssl_http_session::kPort = "443"

private

Definition at line 57 of file ssl_http_session.hpp.

Referenced by getPort(), and run().

onResponse

std::function<void(const TResponse &)> cl_http::ssl_http_session::onResponse

private

Definition at line 73 of file ssl_http_session.hpp.

Referenced by fail(), and on_shutdown().

req_

boost::beast::http::request<boost::beast::http::string_body> cl_http::ssl_http_session::req_

private

Definition at line 79 of file ssl_http_session.hpp.

Referenced by appendToHeader(), on_handshake(), run(), and setBody().

res_

TResponse cl_http::ssl_http_session::res_

private

Definition at line 80 of file ssl_http_session.hpp.

Referenced by fail(), on_shutdown(), and on_write().

resolver_

boost::asio::ip::tcp::resolver cl_http::ssl_http_session::resolver_

private

Definition at line 75 of file ssl_http_session.hpp.

Referenced by run().

stream_

boost::beast::ssl_stream<boost::beast::tcp_stream> cl_http::ssl_http_session::stream_

private

Definition at line 77 of file ssl_http_session.hpp.

Referenced by on_connect(), on_handshake(), on_read(), on_resolve(), on_write(), and run().

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The documentation for this class was generated from the following files:

• smacc2_client_library/http_client/include/http_client/ssl_http_session.hpp
• smacc2_client_library/http_client/src/http_client/ssl_http_session.cpp