227 lines
9.8 KiB
C++
227 lines
9.8 KiB
C++
// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
|
|
// 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 Andrey N. Sabelnikov 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 THE COPYRIGHT OWNER 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.
|
|
//
|
|
|
|
#pragma once
|
|
|
|
#include "portable_storage_template_helper.h"
|
|
#include <boost/utility/string_ref.hpp>
|
|
#include <boost/utility/value_init.hpp>
|
|
#include <functional>
|
|
#include "byte_slice.h"
|
|
#include "span.h"
|
|
#include "net/levin_base.h"
|
|
|
|
#undef MONERO_DEFAULT_LOG_CATEGORY
|
|
#define MONERO_DEFAULT_LOG_CATEGORY "net"
|
|
|
|
template<typename context_t>
|
|
void on_levin_traffic(const context_t &context, bool initiator, bool sent, bool error, size_t bytes, const char *category);
|
|
|
|
template<typename context_t>
|
|
void on_levin_traffic(const context_t &context, bool initiator, bool sent, bool error, size_t bytes, int command);
|
|
|
|
namespace
|
|
{
|
|
static const constexpr epee::serialization::portable_storage::limits_t default_levin_limits = {
|
|
8192, // objects
|
|
16384, // fields
|
|
16384, // strings
|
|
};
|
|
}
|
|
|
|
namespace epee
|
|
{
|
|
namespace net_utils
|
|
{
|
|
template<class t_result, class t_arg, class callback_t, class t_transport>
|
|
bool async_invoke_remote_command2(const epee::net_utils::connection_context_base &context, int command, const t_arg& out_struct, t_transport& transport, const callback_t &cb, size_t inv_timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED)
|
|
{
|
|
const boost::uuids::uuid &conn_id = context.m_connection_id;
|
|
typename serialization::portable_storage stg;
|
|
const_cast<t_arg&>(out_struct).store(stg);//TODO: add true const support to searilzation
|
|
levin::message_writer to_send{16 * 1024};
|
|
stg.store_to_binary(to_send.buffer);
|
|
int res = transport.invoke_async(command, std::move(to_send), conn_id, [cb, command](int code, const epee::span<const uint8_t> buff, typename t_transport::connection_context& context)->bool
|
|
{
|
|
t_result result_struct = AUTO_VAL_INIT(result_struct);
|
|
if( code <=0 )
|
|
{
|
|
if (!buff.empty())
|
|
on_levin_traffic(context, true, false, true, buff.size(), command);
|
|
LOG_PRINT_L1("Failed to invoke command " << command << " return code " << code);
|
|
cb(code, result_struct, context);
|
|
return false;
|
|
}
|
|
serialization::portable_storage stg_ret;
|
|
if(!stg_ret.load_from_binary(buff, &default_levin_limits))
|
|
{
|
|
on_levin_traffic(context, true, false, true, buff.size(), command);
|
|
LOG_ERROR("Failed to load_from_binary on command " << command);
|
|
cb(LEVIN_ERROR_FORMAT, result_struct, context);
|
|
return false;
|
|
}
|
|
if (!result_struct.load(stg_ret))
|
|
{
|
|
on_levin_traffic(context, true, false, true, buff.size(), command);
|
|
LOG_ERROR("Failed to load result struct on command " << command);
|
|
cb(LEVIN_ERROR_FORMAT, result_struct, context);
|
|
return false;
|
|
}
|
|
on_levin_traffic(context, true, false, false, buff.size(), command);
|
|
cb(code, result_struct, context);
|
|
return true;
|
|
}, inv_timeout);
|
|
if( res <=0 )
|
|
{
|
|
LOG_PRINT_L1("Failed to invoke command " << command << " return code " << res);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
template<class t_arg, class t_transport>
|
|
bool notify_remote_command2(const typename t_transport::connection_context &context, int command, const t_arg& out_struct, t_transport& transport)
|
|
{
|
|
const boost::uuids::uuid &conn_id = context.m_connection_id;
|
|
serialization::portable_storage stg;
|
|
out_struct.store(stg);
|
|
levin::message_writer to_send;
|
|
stg.store_to_binary(to_send.buffer);
|
|
|
|
int res = transport.send(to_send.finalize_notify(command), conn_id);
|
|
if(res <=0 )
|
|
{
|
|
MERROR("Failed to notify command " << command << " return code " << res);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
//----------------------------------------------------------------------------------------------------
|
|
//----------------------------------------------------------------------------------------------------
|
|
template<class t_owner, class t_in_type, class t_out_type, class t_context, class callback_t>
|
|
int buff_to_t_adapter(int command, const epee::span<const uint8_t> in_buff, byte_stream& buff_out, callback_t cb, t_context& context )
|
|
{
|
|
serialization::portable_storage strg;
|
|
if(!strg.load_from_binary(in_buff, &default_levin_limits))
|
|
{
|
|
on_levin_traffic(context, false, false, true, in_buff.size(), command);
|
|
LOG_ERROR("Failed to load_from_binary in command " << command);
|
|
return -1;
|
|
}
|
|
boost::value_initialized<t_in_type> in_struct;
|
|
boost::value_initialized<t_out_type> out_struct;
|
|
|
|
if (!static_cast<t_in_type&>(in_struct).load(strg))
|
|
{
|
|
on_levin_traffic(context, false, false, true, in_buff.size(), command);
|
|
LOG_ERROR("Failed to load in_struct in command " << command);
|
|
return -1;
|
|
}
|
|
on_levin_traffic(context, false, false, false, in_buff.size(), command);
|
|
int res = cb(command, static_cast<t_in_type&>(in_struct), static_cast<t_out_type&>(out_struct), context);
|
|
serialization::portable_storage strg_out;
|
|
static_cast<t_out_type&>(out_struct).store(strg_out);
|
|
|
|
if(!strg_out.store_to_binary(buff_out))
|
|
{
|
|
LOG_ERROR("Failed to store_to_binary in command" << command);
|
|
return -1;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
template<class t_owner, class t_in_type, class t_context, class callback_t>
|
|
int buff_to_t_adapter(t_owner* powner, int command, const epee::span<const uint8_t> in_buff, callback_t cb, t_context& context)
|
|
{
|
|
serialization::portable_storage strg;
|
|
if(!strg.load_from_binary(in_buff, &default_levin_limits))
|
|
{
|
|
on_levin_traffic(context, false, false, true, in_buff.size(), command);
|
|
LOG_ERROR("Failed to load_from_binary in notify " << command);
|
|
return -1;
|
|
}
|
|
boost::value_initialized<t_in_type> in_struct;
|
|
if (!static_cast<t_in_type&>(in_struct).load(strg))
|
|
{
|
|
on_levin_traffic(context, false, false, true, in_buff.size(), command);
|
|
LOG_ERROR("Failed to load in_struct in notify " << command);
|
|
return -1;
|
|
}
|
|
on_levin_traffic(context, false, false, false, in_buff.size(), command);
|
|
return cb(command, in_struct, context);
|
|
}
|
|
|
|
#define CHAIN_LEVIN_INVOKE_MAP2(context_type) \
|
|
int invoke(int command, const epee::span<const uint8_t> in_buff, epee::byte_stream& buff_out, context_type& context) \
|
|
{ \
|
|
bool handled = false; \
|
|
return handle_invoke_map(false, command, in_buff, buff_out, context, handled); \
|
|
}
|
|
|
|
#define CHAIN_LEVIN_NOTIFY_MAP2(context_type) \
|
|
int notify(int command, const epee::span<const uint8_t> in_buff, context_type& context) \
|
|
{ \
|
|
bool handled = false; epee::byte_stream fake_str; \
|
|
return handle_invoke_map(true, command, in_buff, fake_str, context, handled); \
|
|
}
|
|
|
|
#define BEGIN_INVOKE_MAP2(owner_type) \
|
|
template <class t_context> int handle_invoke_map(bool is_notify, int command, const epee::span<const uint8_t> in_buff, epee::byte_stream& buff_out, t_context& context, bool& handled) \
|
|
{ \
|
|
try { \
|
|
typedef owner_type internal_owner_type_name;
|
|
|
|
#define HANDLE_INVOKE_T2(COMMAND, func) \
|
|
if(!is_notify && COMMAND::ID == command) \
|
|
{handled=true;return epee::net_utils::buff_to_t_adapter<internal_owner_type_name, typename COMMAND::request, typename COMMAND::response>(command, in_buff, buff_out, std::bind(func, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4), context);}
|
|
|
|
#define HANDLE_NOTIFY_T2(NOTIFY, func) \
|
|
if(is_notify && NOTIFY::ID == command) \
|
|
{handled=true;return epee::net_utils::buff_to_t_adapter<internal_owner_type_name, typename NOTIFY::request>(this, command, in_buff, std::bind(func, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3), context);}
|
|
|
|
#define CHAIN_INVOKE_MAP_TO_OBJ_FORCE_CONTEXT(obj, context_type) \
|
|
{ \
|
|
int res = obj.handle_invoke_map(is_notify, command, in_buff, buff_out, static_cast<context_type>(context), handled); \
|
|
if(handled) return res; \
|
|
}
|
|
|
|
|
|
#define END_INVOKE_MAP2() \
|
|
LOG_ERROR("Unknown command:" << command); \
|
|
on_levin_traffic(context, false, false, true, in_buff.size(), "invalid-command"); \
|
|
return LEVIN_ERROR_CONNECTION_HANDLER_NOT_DEFINED; \
|
|
} \
|
|
catch (const std::exception &e) { \
|
|
MERROR("Error in handle_invoke_map: " << e.what()); \
|
|
return LEVIN_ERROR_CONNECTION_TIMEDOUT; /* seems kinda appropriate */ \
|
|
} \
|
|
}
|
|
|
|
}
|
|
}
|
|
|