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/**
* @file lltransfersourcefile.cpp
* @brief Transfer system for sending a file.
*
* $LicenseInfo:firstyear=2006&license=viewergpl$
*
* Copyright (c) 2006-2009, 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 "lltransfersourcefile.h"
#include "llerror.h"
#include "message.h"
#include "lldatapacker.h"
#include "lldir.h"
LLTransferSourceFile::LLTransferSourceFile(const LLUUID &request_id, const F32 priority) :
LLTransferSource(LLTST_FILE, request_id, priority),
mFP(NULL)
{
}
LLTransferSourceFile::~LLTransferSourceFile()
{
if (mFP)
{
llerrs << "Destructor called without the completion callback being called!" << llendl;
}
}
void LLTransferSourceFile::initTransfer()
{
std::string filename = mParams.getFilename();
std::string delimiter = gDirUtilp->getDirDelimiter();
if((filename == ".")
|| (filename == "..")
|| (filename.find(delimiter[0]) != std::string::npos))
{
llwarns << "Attempting to transfer file " << filename << " with path delimiter, aborting!" << llendl;
sendTransferStatus(LLTS_ERROR);
return;
}
// Look for the file.
mFP = LLFile::fopen(mParams.getFilename(), "rb"); /* Flawfinder: ignore */
if (!mFP)
{
sendTransferStatus(LLTS_ERROR);
return;
}
// Get the size of the file using the hack from
fseek(mFP,0,SEEK_END);
mSize = ftell(mFP);
fseek(mFP,0,SEEK_SET);
sendTransferStatus(LLTS_OK);
}
F32 LLTransferSourceFile::updatePriority()
{
return 0.f;
}
LLTSCode LLTransferSourceFile::dataCallback(const S32 packet_id,
const S32 max_bytes,
U8 **data_handle,
S32 &returned_bytes,
BOOL &delete_returned)
{
//llinfos << "LLTransferSourceFile::dataCallback" << llendl;
if (!mFP)
{
llerrs << "Data callback without file set!" << llendl;
return LLTS_ERROR;
}
if (packet_id != mLastPacketID + 1)
{
llerrs << "Can't handle out of order file transfer yet!" << llendl;
}
// Grab up until the max number of bytes from the file.
delete_returned = TRUE;
U8 *tmpp = new U8[max_bytes];
*data_handle = tmpp;
returned_bytes = (S32)fread(tmpp, 1, max_bytes, mFP);
if (!returned_bytes)
{
delete[] tmpp;
*data_handle = NULL;
returned_bytes = 0;
delete_returned = FALSE;
return LLTS_DONE;
}
return LLTS_OK;
}
void LLTransferSourceFile::completionCallback(const LLTSCode status)
{
// No matter what happens, all we want to do is close the file pointer if
// we've got it open.
if (mFP)
{
fclose(mFP);
mFP = NULL;
}
// Delete the file iff the filename begins with "TEMP"
if (mParams.getDeleteOnCompletion() && mParams.getFilename().substr(0, 4) == "TEMP")
{
LLFile::remove(mParams.getFilename());
}
}
void LLTransferSourceFile::packParams(LLDataPacker& dp) const
{
//llinfos << "LLTransferSourceFile::packParams" << llendl;
mParams.packParams(dp);
}
BOOL LLTransferSourceFile::unpackParams(LLDataPacker &dp)
{
//llinfos << "LLTransferSourceFile::unpackParams" << llendl;
return mParams.unpackParams(dp);
}
LLTransferSourceParamsFile::LLTransferSourceParamsFile() :
LLTransferSourceParams(LLTST_FILE),
mDeleteOnCompletion(FALSE)
{
}
void LLTransferSourceParamsFile::packParams(LLDataPacker &dp) const
{
dp.packString(mFilename, "Filename");
dp.packU8((U8)mDeleteOnCompletion, "Delete");
}
BOOL LLTransferSourceParamsFile::unpackParams(LLDataPacker &dp)
{
dp.unpackString(mFilename, "Filename");
U8 delete_flag;
dp.unpackU8(delete_flag, "Delete");
mDeleteOnCompletion = delete_flag;
llinfos << "Unpacked filename: " << mFilename << llendl;
return TRUE;
}
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