icinga2/lib/remote/jsonrpc.cpp

104 lines
3.4 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "remote/jsonrpc.hpp"
#include "base/netstring.hpp"
#include "base/json.hpp"
#include "base/console.hpp"
#include "base/scriptglobal.hpp"
#include "base/convert.hpp"
#include <iostream>
using namespace icinga;
#ifdef I2_DEBUG
static bool GetDebugJsonRpcCached()
{
static int debugJsonRpc = -1;
if (debugJsonRpc != -1)
return debugJsonRpc;
debugJsonRpc = false;
Namespace::Ptr internal = ScriptGlobal::Get("Internal", &Empty);
if (!internal)
return false;
Value vdebug;
if (!internal->Get("DebugJsonRpc", &vdebug))
return false;
debugJsonRpc = Convert::ToLong(vdebug);
return debugJsonRpc;
}
#endif /* I2_DEBUG */
/**
* Sends a message to the connected peer and returns the bytes sent.
*
* @param message The message.
*
* @return The amount of bytes sent.
*/
size_t JsonRpc::SendMessage(const Stream::Ptr& stream, const Dictionary::Ptr& message)
{
String json = JsonEncode(message);
#ifdef I2_DEBUG
if (GetDebugJsonRpcCached())
std::cerr << ConsoleColorTag(Console_ForegroundBlue) << ">> " << json << ConsoleColorTag(Console_Normal) << "\n";
#endif /* I2_DEBUG */
return NetString::WriteStringToStream(stream, json);
}
StreamReadStatus JsonRpc::ReadMessage(const Stream::Ptr& stream, String *message, StreamReadContext& src, bool may_wait, ssize_t maxMessageLength)
{
String jsonString;
StreamReadStatus srs = NetString::ReadStringFromStream(stream, &jsonString, src, may_wait, maxMessageLength);
if (srs != StatusNewItem)
return srs;
*message = jsonString;
#ifdef I2_DEBUG
if (GetDebugJsonRpcCached())
std::cerr << ConsoleColorTag(Console_ForegroundBlue) << "<< " << jsonString << ConsoleColorTag(Console_Normal) << "\n";
#endif /* I2_DEBUG */
return StatusNewItem;
}
Dictionary::Ptr JsonRpc::DecodeMessage(const String& message)
{
Value value = JsonDecode(message);
if (!value.IsObjectType<Dictionary>()) {
BOOST_THROW_EXCEPTION(std::invalid_argument("JSON-RPC"
" message must be a dictionary."));
}
return value;
}