Imported existing code

indra/llmessage/llsdrpcclient.cpp

@@ -0,0 +1,254 @@
+/** 
+ * @file llsdrpcclient.cpp
+ * @author Phoenix
+ * @date 2005-11-05
+ * @brief Implementation of the llsd client classes.
+ *
+ * $LicenseInfo:firstyear=2005&license=viewergpl$
+ * 
+ * Copyright (c) 2005-2009, 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;
+}