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