llsdrpcclient.cpp
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- /**
- * @file llsdrpcclient.cpp
- * @author Phoenix
- * @date 2005-11-05
- * @brief Implementation of the llsd client classes.
- *
- * $LicenseInfo:firstyear=2005&license=viewergpl$
- *
- * Copyright (c) 2005-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "llsdrpcclient.h"
- #include "llbufferstream.h"
- #include "llfiltersd2xmlrpc.h"
- #include "llmemtype.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)
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- }
- // virtual
- LLSDRPCResponse::~LLSDRPCResponse()
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- }
- bool LLSDRPCResponse::extractResponse(const LLSD& sd)
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- 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;
- }
- // virtual
- LLIOPipe::EStatus LLSDRPCResponse::process_impl(
- const LLChannelDescriptors& channels,
- buffer_ptr_t& buffer,
- bool& eos,
- LLSD& context,
- LLPumpIO* pump)
- {
- PUMP_DEBUG;
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- 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)
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- }
- // virtual
- LLSDRPCClient::~LLSDRPCClient()
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- }
- bool LLSDRPCClient::call(
- const std::string& uri,
- const std::string& method,
- const LLSD& parameter,
- LLSDRPCResponse* response,
- EPassBackQueue queue)
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- //llinfos << "RPC: " << uri << "." << method << "(" << *parameter << ")"
- // << llendl;
- 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)
- {
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- //llinfos << "RPC: " << uri << "." << method << "(" << parameter << ")"
- // << llendl;
- 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;
- }
- // virtual
- LLIOPipe::EStatus LLSDRPCClient::process_impl(
- const LLChannelDescriptors& channels,
- buffer_ptr_t& buffer,
- bool& eos,
- LLSD& context,
- LLPumpIO* pump)
- {
- PUMP_DEBUG;
- LLMemType m1(LLMemType::MTYPE_IO_SD_CLIENT);
- 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;
- // lldebugs << "LLSDRPCClient::process_impl STATE_READY" << llendl;
- 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.
- //lldebugs << "LLSDRPCClient::process_impl STATE_WAITING_FOR_RESPONSE"
- // << llendl;
- 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;
- llinfos << "invalid state to process" << llendl;
- rv = STATUS_ERROR;
- break;
- }
- return rv;
- }