WebCC/webcc/http_ssl_client.h

#ifndef WEBCC_HTTP_SSL_CLIENT_H_
#define WEBCC_HTTP_SSL_CLIENT_H_

#include "webcc/http_client_base.h"

#include "boost/asio/ssl.hpp"

namespace webcc {

// HTTP SSL (a.k.a., HTTPS) client session in synchronous mode.
// A request will not return until the response is received or timeout occurs.
// Don't use the same HttpSslClient object in multiple threads.
class HttpSslClient : public HttpClientBase {
 public:
  // SSL verification (|ssl_verify|) needs CA certificates to be found
  // in the default verify paths of OpenSSL. On Windows, it means you need to
  // set environment variable SSL_CERT_FILE properly.
  explicit HttpSslClient(std::size_t buffer_size = 0, bool ssl_verify = true);

  ~HttpSslClient() = default;

  WEBCC_DELETE_COPY_ASSIGN(HttpSslClient);

 private:
  Error Handshake(const std::string& host);

  // Override to do handshake after connected.
  Error Connect(const HttpRequest& request) final;

  void SocketConnect(const Endpoints& endpoints,
                     boost::system::error_code* ec) final;

  void SocketWrite(const HttpRequest& request,
                   boost::system::error_code* ec) final;

  void SocketAsyncReadSome(std::vector<char>& buffer,
                           ReadHandler handler) final;

  void SocketClose(boost::system::error_code* ec) final;

  boost::asio::ssl::context ssl_context_;
  boost::asio::ssl::stream<boost::asio::ip::tcp::socket> ssl_socket_;

  // Verify the certificate of the peer (remote server) or not.
  bool ssl_verify_;
};

}  // namespace webcc

#endif  // WEBCC_HTTP_SSL_CLIENT_H_