def size(self):
size = 0
try:
size = os.path.getsize(self.filepath)
except Exception as e:
LOG.error("Get {0}'s size error".format(self.path))
LOG.exception(e)
return size
def md5sum(self):
ret = setting.UNKNOWN_SYMBOL
try:
with open(self.filepath, 'rb') as fp:
chunk_size = 1024 * hashlib.md5().block_size
chksum = hashlib.md5()
while True:
chunk = fp.read(chunk_size)
if chunk:
chksum.update(chunk)
else:
break
ret = chksum.hexdigest()
except Exception as e:
LOG.error("Get {0}'s md5sum error".format(self.path))
LOG.exception(e)
return ret
def character(self):
chunks = list()
size = self.size
ret = setting.UNKNOWN_SYMBOL
try:
with open(self.filepath, 'rb') as f:
for i in range(NUM_CHUNKS):
f.seek(int(size / NUM_CHUNKS) * i)
chunk = f.read(NUM_BLOCKS * hashlib.md5().block_size)
chunks.append(chunk)
character_chunk = bytes()
for chunk in chunks:
character_chunk = character_chunk + chunk
ret = hashlib.md5(character_chunk).hexdigest()
except Exception as e:
LOG.error("Get {0}'s character error".format(self.path))
LOG.exception(e)
return ret
