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122 lines
4.1 KiB
C++
122 lines
4.1 KiB
C++
// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
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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
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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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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