def Run(self, args):
"""Reads a buffer on the client and sends it to the server."""
# Make sure we limit the size of our output
if args.length > constants.CLIENT_MAX_BUFFER_SIZE:
raise RuntimeError("Can not read buffers this large.")
data = vfs.ReadVFS(args.pathspec,
args.offset,
args.length,
progress_callback=self.Progress)
result = rdf_protodict.DataBlob(
data=zlib.compress(data),
compression=rdf_protodict.DataBlob.CompressionType.ZCOMPRESSION)
digest = hashlib.sha256(data).digest()
# Ensure that the buffer is counted against this response. Check network
# send limit.
self.ChargeBytesToSession(len(data))
# Now return the data to the server into the special TransferStore well
# known flow.
self.grr_worker.SendReply(
result, session_id=rdfvalue.SessionID(flow_name="TransferStore"))
# Now report the hash of this blob to our flow as well as the offset and
# length.
self.SendReply(
rdf_client.BufferReference(offset=args.offset,
length=len(data),
data=digest))
def Run(self, args):
"""Reads a buffer on the client and sends it to the server."""
# Make sure we limit the size of our output
if args.length > constants.CLIENT_MAX_BUFFER_SIZE:
raise RuntimeError("Can not read buffers this large.")
data = vfs.ReadVFS(args.pathspec, args.offset, args.length)
digest = hashlib.sha256(data).digest()
# Now report the hash of this blob to our flow as well as the offset and
# length.
self.SendReply(
rdf_client.BufferReference(
offset=args.offset, length=len(data), data=digest))
