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Fixed possible crash in ftServer::handleIncoming by checking return value of dynamic_cast.

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@8594 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
thunder2 2015-07-12 01:08:33 +00:00
parent 014e78dd8c
commit 3abec3363d
1 changed files with 51 additions and 27 deletions
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78
libretroshare/src/ft/ftserver.cc
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@ -1312,84 +1312,105 @@ int ftServer::handleIncoming()
case RS_PKT_SUBTYPE_FT_DATA_REQUEST:
{
RsFileTransferDataRequestItem *f = dynamic_cast<RsFileTransferDataRequestItem*>(item) ;
if (f)
{
#ifdef SERVER_DEBUG
std::cerr << "ftServer::handleIncoming: received data request for hash " << f->file.hash << ", offset=" << f->fileoffset << ", chunk size=" << f->chunksize << std::endl;
std::cerr << "ftServer::handleIncoming: received data request for hash " << f->file.hash << ", offset=" << f->fileoffset << ", chunk size=" << f->chunksize << std::endl;
#endif
mFtDataplex->recvDataRequest(f->PeerId(), f->file.hash, f->file.filesize, f->fileoffset, f->chunksize);
mFtDataplex->recvDataRequest(f->PeerId(), f->file.hash, f->file.filesize, f->fileoffset, f->chunksize);
}
}
break ;
case RS_PKT_SUBTYPE_FT_DATA:
{
RsFileTransferDataItem *f = dynamic_cast<RsFileTransferDataItem*>(item) ;
if (f)
{
#ifdef SERVER_DEBUG
std::cerr << "ftServer::handleIncoming: received data for hash " << f->fd.file.hash << ", offset=" << f->fd.file_offset << ", chunk size=" << f->fd.binData.bin_len << std::endl;
std::cerr << "ftServer::handleIncoming: received data for hash " << f->fd.file.hash << ", offset=" << f->fd.file_offset << ", chunk size=" << f->fd.binData.bin_len << std::endl;
#endif
mFtDataplex->recvData(f->PeerId(), f->fd.file.hash, f->fd.file.filesize, f->fd.file_offset, f->fd.binData.bin_len, f->fd.binData.bin_data);
mFtDataplex->recvData(f->PeerId(), f->fd.file.hash, f->fd.file.filesize, f->fd.file_offset, f->fd.binData.bin_len, f->fd.binData.bin_data);
/* we've stolen the data part -> so blank before delete
*/
f->fd.binData.TlvShallowClear();
/* we've stolen the data part -> so blank before delete
*/
f->fd.binData.TlvShallowClear();
}
}
break ;
case RS_PKT_SUBTYPE_FT_CHUNK_MAP_REQUEST:
{
RsFileTransferChunkMapRequestItem *f = dynamic_cast<RsFileTransferChunkMapRequestItem*>(item) ;
if (f)
{
#ifdef SERVER_DEBUG
std::cerr << "ftServer::handleIncoming: received chunkmap request for hash " << f->hash << ", client=" << f->is_client << std::endl;
std::cerr << "ftServer::handleIncoming: received chunkmap request for hash " << f->hash << ", client=" << f->is_client << std::endl;
#endif
mFtDataplex->recvChunkMapRequest(f->PeerId(), f->hash,f->is_client) ;
mFtDataplex->recvChunkMapRequest(f->PeerId(), f->hash,f->is_client) ;
}
}
break ;
case RS_PKT_SUBTYPE_FT_CHUNK_MAP:
{
RsFileTransferChunkMapItem *f = dynamic_cast<RsFileTransferChunkMapItem*>(item) ;
if (f)
{
#ifdef SERVER_DEBUG
std::cerr << "ftServer::handleIncoming: received chunkmap for hash " << f->hash << ", client=" << f->is_client << /*", map=" << f->compressed_map <<*/ std::endl;
std::cerr << "ftServer::handleIncoming: received chunkmap for hash " << f->hash << ", client=" << f->is_client << /*", map=" << f->compressed_map <<*/ std::endl;
#endif
mFtDataplex->recvChunkMap(f->PeerId(), f->hash,f->compressed_map,f->is_client) ;
mFtDataplex->recvChunkMap(f->PeerId(), f->hash,f->compressed_map,f->is_client) ;
}
}
break ;
case RS_PKT_SUBTYPE_FT_CHUNK_CRC_REQUEST:
{
RsFileTransferSingleChunkCrcRequestItem *f = dynamic_cast<RsFileTransferSingleChunkCrcRequestItem*>(item) ;
if (f)
{
#ifdef SERVER_DEBUG
std::cerr << "ftServer::handleIncoming: received single chunk crc req for hash " << f->hash << ", chunk number=" << f->chunk_number << std::endl;
std::cerr << "ftServer::handleIncoming: received single chunk crc req for hash " << f->hash << ", chunk number=" << f->chunk_number << std::endl;
#endif
mFtDataplex->recvSingleChunkCRCRequest(f->PeerId(), f->hash,f->chunk_number) ;
mFtDataplex->recvSingleChunkCRCRequest(f->PeerId(), f->hash,f->chunk_number) ;
}
}
break ;
case RS_PKT_SUBTYPE_FT_CHUNK_CRC:
{
RsFileTransferSingleChunkCrcItem *f = dynamic_cast<RsFileTransferSingleChunkCrcItem *>(item) ;
if (f)
{
#ifdef SERVER_DEBUG
std::cerr << "ftServer::handleIncoming: received single chunk crc req for hash " << f->hash << ", chunk number=" << f->chunk_number << ", checksum = " << f->check_sum << std::endl;
std::cerr << "ftServer::handleIncoming: received single chunk crc req for hash " << f->hash << ", chunk number=" << f->chunk_number << ", checksum = " << f->check_sum << std::endl;
#endif
mFtDataplex->recvSingleChunkCRC(f->PeerId(), f->hash,f->chunk_number,f->check_sum);
mFtDataplex->recvSingleChunkCRC(f->PeerId(), f->hash,f->chunk_number,f->check_sum);
}
}
break ;
case RS_PKT_SUBTYPE_FT_CACHE_ITEM:
{
RsFileTransferCacheItem *ci = dynamic_cast<RsFileTransferCacheItem*>(item) ;
if (ci)
{
#ifdef SERVER_DEBUG_CACHE
std::cerr << "ftServer::handleIncoming: received cache item hash=" << ci->file.hash << ". from peer " << ci->PeerId() << std::endl;
std::cerr << "ftServer::handleIncoming: received cache item hash=" << ci->file.hash << ". from peer " << ci->PeerId() << std::endl;
#endif
/* these go to the CacheStrapper! */
RsCacheData data;
data.pid = ci->PeerId();
data.cid = CacheId(ci->cacheType, ci->cacheSubId);
data.path = ci->file.path;
data.name = ci->file.name;
data.hash = ci->file.hash;
data.size = ci->file.filesize;
data.recvd = time(NULL) ;
/* these go to the CacheStrapper! */
RsCacheData data;
data.pid = ci->PeerId();
data.cid = CacheId(ci->cacheType, ci->cacheSubId);
data.path = ci->file.path;
data.name = ci->file.name;
data.hash = ci->file.hash;
data.size = ci->file.filesize;
data.recvd = time(NULL) ;
mCacheStrapper->recvCacheResponse(data, time(NULL));
mCacheStrapper->recvCacheResponse(data, time(NULL));
}
}
break ;
@ -1397,9 +1418,12 @@ int ftServer::handleIncoming()
// {
// // do nothing
// RsFileTransferCacheRequestItem *cr = dynamic_cast<RsFileTransferCacheRequestItem*>(item) ;
// if (cr)
// {
//#ifdef SERVER_DEBUG_CACHE
// std::cerr << "ftServer::handleIncoming: received cache request from peer " << cr->PeerId() << std::endl;
// std::cerr << "ftServer::handleIncoming: received cache request from peer " << cr->PeerId() << std::endl;
//#endif
// }
// }
// break ;
}