Merge commit 'e988fee1679536137b87d10e939eff5c1f27c8ab' as 'libs/libzmq'

libs/libzmq/src/socks.hpp

@@ -0,0 +1,178 @@
+/*
+    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SOCKS_HPP_INCLUDED__
+#define __ZMQ_SOCKS_HPP_INCLUDED__
+
+#include <string>
+#include "fd.hpp"
+#include "stdint.hpp"
+
+namespace zmq
+{
+struct socks_greeting_t
+{
+    socks_greeting_t (uint8_t method_);
+    socks_greeting_t (const uint8_t *methods_, uint8_t num_methods_);
+
+    uint8_t methods[UINT8_MAX];
+    const size_t num_methods;
+};
+
+class socks_greeting_encoder_t
+{
+  public:
+    socks_greeting_encoder_t ();
+    void encode (const socks_greeting_t &greeting_);
+    int output (fd_t fd_);
+    bool has_pending_data () const;
+    void reset ();
+
+  private:
+    size_t _bytes_encoded;
+    size_t _bytes_written;
+    uint8_t _buf[2 + UINT8_MAX];
+};
+
+struct socks_choice_t
+{
+    socks_choice_t (uint8_t method_);
+
+    uint8_t method;
+};
+
+class socks_choice_decoder_t
+{
+  public:
+    socks_choice_decoder_t ();
+    int input (fd_t fd_);
+    bool message_ready () const;
+    socks_choice_t decode ();
+    void reset ();
+
+  private:
+    unsigned char _buf[2];
+    size_t _bytes_read;
+};
+
+
+struct socks_basic_auth_request_t
+{
+    socks_basic_auth_request_t (const std::string &username_,
+                                const std::string &password_);
+
+    const std::string username;
+    const std::string password;
+};
+
+class socks_basic_auth_request_encoder_t
+{
+  public:
+    socks_basic_auth_request_encoder_t ();
+    void encode (const socks_basic_auth_request_t &req_);
+    int output (fd_t fd_);
+    bool has_pending_data () const;
+    void reset ();
+
+  private:
+    size_t _bytes_encoded;
+    size_t _bytes_written;
+    uint8_t _buf[1 + 1 + UINT8_MAX + 1 + UINT8_MAX];
+};
+
+struct socks_auth_response_t
+{
+    socks_auth_response_t (uint8_t response_code_);
+    uint8_t response_code;
+};
+
+class socks_auth_response_decoder_t
+{
+  public:
+    socks_auth_response_decoder_t ();
+    int input (fd_t fd_);
+    bool message_ready () const;
+    socks_auth_response_t decode ();
+    void reset ();
+
+  private:
+    int8_t _buf[2];
+    size_t _bytes_read;
+};
+
+struct socks_request_t
+{
+    socks_request_t (uint8_t command_, std::string hostname_, uint16_t port_);
+
+    const uint8_t command;
+    const std::string hostname;
+    const uint16_t port;
+};
+
+class socks_request_encoder_t
+{
+  public:
+    socks_request_encoder_t ();
+    void encode (const socks_request_t &req_);
+    int output (fd_t fd_);
+    bool has_pending_data () const;
+    void reset ();
+
+  private:
+    size_t _bytes_encoded;
+    size_t _bytes_written;
+    uint8_t _buf[4 + UINT8_MAX + 1 + 2];
+};
+
+struct socks_response_t
+{
+    socks_response_t (uint8_t response_code_,
+                      const std::string &address_,
+                      uint16_t port_);
+    uint8_t response_code;
+    std::string address;
+    uint16_t port;
+};
+
+class socks_response_decoder_t
+{
+  public:
+    socks_response_decoder_t ();
+    int input (fd_t fd_);
+    bool message_ready () const;
+    socks_response_t decode ();
+    void reset ();
+
+  private:
+    int8_t _buf[4 + UINT8_MAX + 1 + 2];
+    size_t _bytes_read;
+};
+}
+
+#endif