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123 lines
4.2 KiB
123 lines
4.2 KiB
// Copyright (c) 2014, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2006-2013, Andrey N. Sabelnikov
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#ifndef _PROTOCOL_SWITCHER_H_
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#define _PROTOCOL_SWITCHER_H_
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#include "levin_base.h"
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#include "http_server.h"
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#include "levin_protocol_handler.h"
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//#include "abstract_tcp_server.h"
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namespace epee
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{
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namespace net_utils
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{
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struct protocl_switcher_config
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{
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http::http_custom_handler::config_type m_http_config;
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levin::protocol_handler::config_type m_levin_config;
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};
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struct i_protocol_handler
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{
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virtual bool handle_recv(const void* ptr, size_t cb)=0;
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};
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template<class t>
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class t_protocol_handler: public i_protocol_handler
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{
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public:
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typedef t t_type;
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t_protocol_handler(i_service_endpoint* psnd_hndlr, typename t_type::config_type& config, const connection_context& conn_context):m_hadler(psnd_hndlr, config, conn_context)
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{}
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private:
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bool handle_recv(const void* ptr, size_t cb)
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{
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return m_hadler.handle_recv(ptr, cb);
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}
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t_type m_hadler;
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};
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class protocol_switcher
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{
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public:
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typedef protocl_switcher_config config_type;
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protocol_switcher(net_utils::i_service_endpoint* psnd_hndlr, config_type& config, const net_utils::connection_context_base& conn_context);
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virtual ~protocol_switcher(){}
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virtual bool handle_recv(const void* ptr, size_t cb);
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bool after_init_connection(){return true;}
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private:
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t_protocol_handler<http::http_custom_handler> m_http_handler;
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t_protocol_handler<levin::protocol_handler> m_levin_handler;
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i_protocol_handler* pcurrent_handler;
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std::string m_cached_buff;
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};
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protocol_switcher::protocol_switcher(net_utils::i_service_endpoint* psnd_hndlr, config_type& config, const net_utils::connection_context_base& conn_context):m_http_handler(psnd_hndlr, config.m_http_config, conn_context), m_levin_handler(psnd_hndlr, config.m_levin_config, conn_context), pcurrent_handler(NULL)
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{}
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bool protocol_switcher::handle_recv(const void* ptr, size_t cb)
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{
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if(pcurrent_handler)
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return pcurrent_handler->handle_recv(ptr, cb);
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else
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{
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m_cached_buff.append((const char*)ptr, cb);
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if(m_cached_buff.size() < sizeof(uint64_t))
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return true;
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if(*((uint64_t*)&m_cached_buff[0]) == LEVIN_SIGNATURE)
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{
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pcurrent_handler = &m_levin_handler;
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return pcurrent_handler->handle_recv(m_cached_buff.data(), m_cached_buff.size());
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}
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if(m_cached_buff.substr(0, 4) == "GET " || m_cached_buff.substr(0, 4) == "POST")
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{
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pcurrent_handler = &m_http_handler;
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return pcurrent_handler->handle_recv(m_cached_buff.data(), m_cached_buff.size());
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}else
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{
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LOG_ERROR("Wrong protocol accepted on port...");
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return false;
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}
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}
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return true;
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}
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}
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}
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#endif //_PROTOCOL_SWITCHER_H_
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