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/**
* @file llsdrpcclient.cpp
* @author Phoenix
* @date 2005-11-05
* @brief Implementation of the llsd client classes.
*
* $LicenseInfo:firstyear=2005&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llsdrpcclient.h"
#include "llbufferstream.h"
#include "llfasttimer.h"
#include "llfiltersd2xmlrpc.h"
#include "llpumpio.h"
#include "llsd.h"
#include "llsdserialize.h"
#include "llurlrequest.h"
/**
* String constants
*/
static std::string LLSDRPC_RESPONSE_NAME("response");
static std::string LLSDRPC_FAULT_NAME("fault");
/**
* LLSDRPCResponse
*/
LLSDRPCResponse::LLSDRPCResponse() :
mIsError(false),
mIsFault(false)
{
}
// virtual
LLSDRPCResponse::~LLSDRPCResponse()
{
}
bool LLSDRPCResponse::extractResponse(const LLSD& sd)
{
bool rv = true;
if(sd.has(LLSDRPC_RESPONSE_NAME))
{
mReturnValue = sd[LLSDRPC_RESPONSE_NAME];
mIsFault = false;
}
else if(sd.has(LLSDRPC_FAULT_NAME))
{
mReturnValue = sd[LLSDRPC_FAULT_NAME];
mIsFault = true;
}
else
{
mReturnValue.clear();
mIsError = true;
rv = false;
}
return rv;
}
static LLFastTimer::DeclareTimer FTM_SDRPC_RESPONSE("SDRPC Response");
// virtual
LLIOPipe::EStatus LLSDRPCResponse::process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump)
{
LLFastTimer t(FTM_SDRPC_RESPONSE);
PUMP_DEBUG;
if(mIsError)
{
error(pump);
}
else if(mIsFault)
{
fault(pump);
}
else
{
response(pump);
}
PUMP_DEBUG;
return STATUS_DONE;
}
/**
* LLSDRPCClient
*/
LLSDRPCClient::LLSDRPCClient() :
mState(STATE_NONE),
mQueue(EPBQ_PROCESS)
{
}
// virtual
LLSDRPCClient::~LLSDRPCClient()
{
}
bool LLSDRPCClient::call(
const std::string& uri,
const std::string& method,
const LLSD& parameter,
LLSDRPCResponse* response,
EPassBackQueue queue)
{
//LL_INFOS() << "RPC: " << uri << "." << method << "(" << *parameter << ")"
// << LL_ENDL;
if(method.empty() || !response)
{
return false;
}
mState = STATE_READY;
mURI.assign(uri);
std::stringstream req;
req << LLSDRPC_REQUEST_HEADER_1 << method
<< LLSDRPC_REQUEST_HEADER_2;
LLSDSerialize::toNotation(parameter, req);
req << LLSDRPC_REQUEST_FOOTER;
mRequest = req.str();
mQueue = queue;
mResponse = response;
return true;
}
bool LLSDRPCClient::call(
const std::string& uri,
const std::string& method,
const std::string& parameter,
LLSDRPCResponse* response,
EPassBackQueue queue)
{
//LL_INFOS() << "RPC: " << uri << "." << method << "(" << parameter << ")"
// << LL_ENDL;
if(method.empty() || parameter.empty() || !response)
{
return false;
}
mState = STATE_READY;
mURI.assign(uri);
std::stringstream req;
req << LLSDRPC_REQUEST_HEADER_1 << method
<< LLSDRPC_REQUEST_HEADER_2 << parameter
<< LLSDRPC_REQUEST_FOOTER;
mRequest = req.str();
mQueue = queue;
mResponse = response;
return true;
}
static LLFastTimer::DeclareTimer FTM_PROCESS_SDRPC_CLIENT("SDRPC Client");
// virtual
LLIOPipe::EStatus LLSDRPCClient::process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump)
{
LLFastTimer t(FTM_PROCESS_SDRPC_CLIENT);
PUMP_DEBUG;
if((STATE_NONE == mState) || (!pump))
{
// You should have called the call() method already.
return STATUS_PRECONDITION_NOT_MET;
}
EStatus rv = STATUS_DONE;
switch(mState)
{
case STATE_READY:
{
PUMP_DEBUG;
// LL_DEBUGS() << "LLSDRPCClient::process_impl STATE_READY" << LL_ENDL;
buffer->append(
channels.out(),
(U8*)mRequest.c_str(),
mRequest.length());
context[CONTEXT_DEST_URI_SD_LABEL] = mURI;
mState = STATE_WAITING_FOR_RESPONSE;
break;
}
case STATE_WAITING_FOR_RESPONSE:
{
PUMP_DEBUG;
// The input channel has the sd response in it.
//LL_DEBUGS() << "LLSDRPCClient::process_impl STATE_WAITING_FOR_RESPONSE"
// << LL_ENDL;
LLBufferStream resp(channels, buffer.get());
LLSD sd;
LLSDSerialize::fromNotation(sd, resp, buffer->count(channels.in()));
LLSDRPCResponse* response = (LLSDRPCResponse*)mResponse.get();
if (!response)
{
mState = STATE_DONE;
break;
}
response->extractResponse(sd);
if(EPBQ_PROCESS == mQueue)
{
LLPumpIO::chain_t chain;
chain.push_back(mResponse);
pump->addChain(chain, DEFAULT_CHAIN_EXPIRY_SECS);
}
else
{
pump->respond(mResponse.get());
}
mState = STATE_DONE;
break;
}
case STATE_DONE:
default:
PUMP_DEBUG;
LL_INFOS() << "invalid state to process" << LL_ENDL;
rv = STATUS_ERROR;
break;
}
return rv;
}
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