def compute_hash(fp, buf_size=8192, size=None, hash_algorithm=md5):
hash_obj = hash_algorithm()
spos = fp.tell()
if size and size < buf_size:
s = fp.read(size)
else:
s = fp.read(buf_size)
while s:
if not isinstance(s, bytes):
s = s.encode('utf-8')
hash_obj.update(s)
if size:
size -= len(s)
if size <= 0:
break
if size and size < buf_size:
s = fp.read(size)
else:
s = fp.read(buf_size)
hex_digest = hash_obj.hexdigest()
base64_digest = encodebytes(hash_obj.digest()).decode('utf-8')
if base64_digest[-1] == '\n':
base64_digest = base64_digest[0:-1]
# data_size based on bytes read.
data_size = fp.tell() - spos
fp.seek(spos)
return (hex_digest, base64_digest, data_size)
def compute_base64_md5_digest(data):
m = md5()
m.update(data)
base64_digest = encodebytes(m.digest()).decode('utf-8')
if base64_digest[-1] == '\n':
base64_digest = base64_digest[0:-1]
return base64_digest
def compute_hash(fp, buf_size=8192, size=None, hash_algorithm=md5):
hash_obj = hash_algorithm()
spos = fp.tell()
if size and size < buf_size:
s = fp.read(size)
else:
s = fp.read(buf_size)
while s:
if not isinstance(s, bytes):
s = s.encode('utf-8')
hash_obj.update(s)
if size:
size -= len(s)
if size <= 0:
break
if size and size < buf_size:
s = fp.read(size)
else:
s = fp.read(buf_size)
hex_digest = hash_obj.hexdigest()
base64_digest = encodebytes(hash_obj.digest()).decode('utf-8')
if base64_digest[-1] == '\n':
base64_digest = base64_digest[0:-1]
# data_size based on bytes read.
data_size = fp.tell() - spos
fp.seek(spos)
return (hex_digest, base64_digest, data_size)
def compute_encrypted_md5(fp, buf_size=8192, hash_algorithm=md5):
hash_obj = hash_algorithm()
s = fp.read(buf_size)
while s:
if not isinstance(s, bytes):
s = s.encode('utf-8')
hash_obj.update(s)
s = fp.read(buf_size)
hex_digest = hash_obj.hexdigest()
base64_digest = encodebytes(hash_obj.digest()).decode('utf-8')
if base64_digest[-1] == '\n':
base64_digest = base64_digest[0:-1]
# data_size based on bytes read.
SEEK_SET = getattr(io, 'SEEK_SET', 0)
fp.seek(SEEK_SET)
return (hex_digest, base64_digest)
def compute_encrypted_md5(fp, buf_size=8192, hash_algorithm=md5):
hash_obj = hash_algorithm()
s = fp.read(buf_size)
while s:
if not isinstance(s, bytes):
s = s.encode('utf-8')
hash_obj.update(s)
s = fp.read(buf_size)
hex_digest = hash_obj.hexdigest()
base64_digest = encodebytes(hash_obj.digest()).decode('utf-8')
if base64_digest[-1] == '\n':
base64_digest = base64_digest[0:-1]
# data_size based on bytes read.
SEEK_SET = getattr(io, 'SEEK_SET', 0)
fp.seek(SEEK_SET)
return (hex_digest, base64_digest)