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/**
* @file llviewerassetstorage.cpp
* @brief Subclass capable of loading asset data to/from an external source.
*
* Copyright (c) 2003-2007, 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
*/
#include "linden_common.h"
#include "llviewerprecompiledheaders.h"
#include "llagent.h"
#include "llviewerassetstorage.h"
#include "llviewerbuild.h"
#include "llvfile.h"
#include "llvfs.h"
LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
LLVFS *vfs, const LLHost &upstream_host)
: LLAssetStorage(msg, xfer, vfs, upstream_host)
{
}
LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer,
LLVFS *vfs)
: LLAssetStorage(msg, xfer, vfs)
{
}
// virtual
void LLViewerAssetStorage::storeAssetData(
const LLTransactionID& tid,
LLAssetType::EType asset_type,
LLStoreAssetCallback callback,
void* user_data,
bool temp_file,
bool is_priority,
bool store_local)
{
LLAssetID asset_id = tid.makeAssetID(gAgent.getSecureSessionID());
llinfos << "LLViewerAssetStorage::storeAssetData (legacy) " << tid << ":" << LLAssetType::lookup(asset_type)
<< " ASSET_ID: " << asset_id << llendl;
if (mUpstreamHost.isOk())
{
if (mVFS->getExists(asset_id, asset_type))
{
// Pack data into this packet if we can fit it.
U8 buffer[MTUBYTES];
buffer[0] = 0;
LLVFile vfile(mVFS, asset_id, asset_type, LLVFile::READ);
S32 asset_size = vfile.getSize();
LLAssetRequest *req = new LLAssetRequest(asset_id, asset_type);
req->mUpCallback = callback;
req->mUserData = user_data;
if (asset_size < 1)
{
// This can happen if there's a bug in our code or if the VFS has been corrupted.
llwarns << "LLViewerAssetStorage::storeAssetData() Data _should_ already be in the VFS, but it's not! " << asset_id << llendl;
delete req;
if (callback)
{
callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_FAILED);
}
return;
}
else if(is_priority)
{
mPendingUploads.push_front(req);
}
else
{
mPendingUploads.push_back(req);
}
// Read the data from the VFS if it'll fit in this packet.
if (asset_size + 100 < MTUBYTES)
{
BOOL res = vfile.read(buffer, asset_size); /* Flawfinder: ignore */
S32 bytes_read = res ? vfile.getLastBytesRead() : 0;
if( bytes_read == asset_size )
{
req->mDataSentInFirstPacket = TRUE;
//llinfos << "LLViewerAssetStorage::createAsset sending data in first packet" << llendl;
}
else
{
llwarns << "Probable corruption in VFS file, aborting store asset data" << llendl;
if (callback)
{
callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_NONEXISTENT_FILE);
}
return;
}
}
else
{
// Too big, do an xfer
buffer[0] = 0;
asset_size = 0;
}
mMessageSys->newMessageFast(_PREHASH_AssetUploadRequest);
mMessageSys->nextBlockFast(_PREHASH_AssetBlock);
mMessageSys->addUUIDFast(_PREHASH_TransactionID, tid);
mMessageSys->addS8Fast(_PREHASH_Type, (S8)asset_type);
mMessageSys->addBOOLFast(_PREHASH_Tempfile, temp_file);
mMessageSys->addBOOLFast(_PREHASH_StoreLocal, store_local);
mMessageSys->addBinaryDataFast( _PREHASH_AssetData, buffer, asset_size );
mMessageSys->sendReliable(mUpstreamHost);
}
else
{
llwarns << "AssetStorage: attempt to upload non-existent vfile " << asset_id << ":" << LLAssetType::lookup(asset_type) << llendl;
if (callback)
{
callback(asset_id, user_data, LL_ERR_ASSET_REQUEST_NONEXISTENT_FILE);
}
}
}
else
{
llwarns << "Attempt to move asset store request upstream w/o valid upstream provider" << llendl;
if (callback)
{
callback(asset_id, user_data, LL_ERR_CIRCUIT_GONE);
}
}
}
void LLViewerAssetStorage::storeAssetData(
const char* filename,
const LLTransactionID& tid,
LLAssetType::EType asset_type,
LLStoreAssetCallback callback,
void* user_data,
bool temp_file,
bool is_priority)
{
if(!filename)
{
llerrs << "No filename specified" << llendl;
return;
}
LLAssetID asset_id = tid.makeAssetID(gAgent.getSecureSessionID());
llinfos << "LLViewerAssetStorage::storeAssetData (legacy)" << asset_id << ":" << LLAssetType::lookup(asset_type) << llendl;
llinfos << "ASSET_ID: " << asset_id << llendl;
FILE* fp = LLFile::fopen(filename, "rb");
if (fp)
{
LLLegacyAssetRequest *legacy = new LLLegacyAssetRequest;
legacy->mUpCallback = callback;
legacy->mUserData = user_data;
LLVFile file(mVFS, asset_id, asset_type, LLVFile::WRITE);
fseek(fp, 0, SEEK_END);
S32 size = ftell(fp);
fseek(fp, 0, SEEK_SET);
file.setMaxSize(size);
const S32 buf_size = 65536;
U8 copy_buf[buf_size];
while ((size = (S32)fread(copy_buf, 1, buf_size, fp)))
{
file.write(copy_buf, size);
}
fclose(fp);
// if this upload fails, the caller needs to setup a new tempfile for us
if (temp_file)
{
LLFile::remove(filename);
}
LLViewerAssetStorage::storeAssetData(
tid,
asset_type,
legacyStoreDataCallback,
(void**)legacy,
temp_file,
is_priority);
}
else
{
if (callback)
{
callback(asset_id, user_data, LL_ERR_CANNOT_OPEN_FILE);
}
}
}
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