Edouard@2463: #!/usr/bin/env python
Edouard@2463: # -*- coding: utf-8 -*-
Edouard@2463: 
Edouard@2463: # See COPYING file for copyrights details.
Edouard@2463: 
Edouard@2463: import md5
Edouard@2463: 
Edouard@2463: class ConnectorBase(object):
Edouard@2463: 
Edouard@2463:     chuncksize = 16384
Edouard@2463:     def BlobFromFile(self, filepath): 
Edouard@2463:         s = md5.new()
Edouard@2463:         blobID = s.digest()  # empty md5, to support empty blob
Edouard@2463:         with open(filepath, "rb") as f:
Edouard@2463:             while True:
Edouard@2463:                 chunk = f.read(self.chuncksize) 
Edouard@2463:                 if len(chunk) == 0: return blobID
Edouard@2463:                 blobID = self.AppendChunkToBlob(chunk, blobID)
Edouard@2463:                 s.update(chunk)
Edouard@2463:                 if blobID != s.digest(): return None
Edouard@2463: