text: /*
   * Copyright (c) 2014, Peter Thorson. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in the
   *       documentation and/or other materials provided with the distribution.
   *     * Neither the name of the WebSocket++ Project nor the
   *       names of its contributors may be used to endorse or promote products
   *       derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #ifndef WEBSOCKETPP_CLIENT_ENDPOINT_HPP
  #define WEBSOCKETPP_CLIENT_ENDPOINT_HPP
  
  #include <websocketpp/endpoint.hpp>
  #include <websocketpp/uri.hpp>
  
  #include <websocketpp/logger/levels.hpp>
  
  #include <websocketpp/common/system_error.hpp>
  
  #include <string>
  
  namespace websocketpp {
  
  /// Client endpoint role based on the given config
  /**
   *
   */
  template <typename config>
  class client : public endpoint<connection<config>,config> {
  public:
      /// Type of this endpoint
      typedef client<config> type;
  
      /// Type of the endpoint concurrency component
      typedef typename config::concurrency_type concurrency_type;
      /// Type of the endpoint transport component
      typedef typename config::transport_type transport_type;
  
      /// Type of the connections this server will create
      typedef connection<config> connection_type;
      /// Type of a shared pointer to the connections this server will create
      typedef typename connection_type::ptr connection_ptr;
  
      /// Type of the connection transport component
      typedef typename transport_type::transport_con_type transport_con_type;
      /// Type of a shared pointer to the connection transport component
      typedef typename transport_con_type::ptr transport_con_ptr;
  
      /// Type of the endpoint component of this server
      typedef endpoint<connection_type,config> endpoint_type;
  
      friend class connection<config>;
  
      explicit client() : endpoint_type(false)
      {
          endpoint_type::m_alog.write(log::alevel::devel, "client constructor");
      }
  
      /// Get a new connection
      /**
       * Creates and returns a pointer to a new connection to the given URI
       * suitable for passing to connect(connection_ptr). This method allows
       * applying connection specific settings before performing the opening
       * handshake.
       *
       * @param [in] location URI to open the connection to as a uri_ptr
       * @param [out] ec An status code indicating failure reasons, if any
       *
       * @return A connection_ptr to the new connection
       */
      connection_ptr get_connection(uri_ptr location, lib::error_code & ec) {
          if (location->get_secure() && !transport_type::is_secure()) {
              ec = error::make_error_code(error::endpoint_not_secure);
              return connection_ptr();
          }
  
          connection_ptr con = endpoint_type::create_connection();
  
          if (!con) {
              ec = error::make_error_code(error::con_creation_failed);
              return con;
          }
  
          con->set_uri(location);
  
          ec = lib::error_code();
          return con;
      }
  
      /// Get a new connection (string version)
      /**
       * Creates and returns a pointer to a new connection to the given URI
       * suitable for passing to connect(connection_ptr). This overload allows
       * default construction of the uri_ptr from a standard string.
       *
       * @param [in] u URI to open the connection to as a string
       * @param [out] ec An status code indicating failure reasons, if any
       *
       * @return A connection_ptr to the new connection
       */
      connection_ptr get_connection(std::string const & u, lib::error_code & ec) {
          uri_ptr location = lib::make_shared<uri>(u);
  
          if (!location->get_valid()) {
              ec = error::make_error_code(error::invalid_uri);
              return connection_ptr();
          }
  
          return get_connection(location, ec);
      }
  
      /// Begin the connection process for the given connection
      /**
       * Initiates the opening connection handshake for connection con. Exact
       * behavior depends on the underlying transport policy.
       *
       * @param con The connection to connect
       *
       * @return The pointer to the connection originally passed in.
       */
      connection_ptr connect(connection_ptr con) {
          // Ask transport to perform a connection
          transport_type::async_connect(
              lib::static_pointer_cast<transport_con_type>(con),
              con->get_uri(),
              lib::bind(
                  &type::handle_connect,
                  this,
                  con,
                  lib::placeholders::_1
              )
          );
  
          return con;
      }
  private:
      // handle_connect
      void handle_connect(connection_ptr con, lib::error_code const & ec) {
          if (ec) {
              con->terminate(ec);
  
              endpoint_type::m_elog.write(log::elevel::rerror,
                      "handle_connect error: "+ec.message());
          } else {
              endpoint_type::m_alog.write(log::alevel::connect,
                  "Successful connection");
  
              con->start();
          }
      }
  };
  
  } // namespace websocketpp
  
  #endif //WEBSOCKETPP_CLIENT_ENDPOINT_HPP
  