def md5(key):
"""
Create md5 hash
"""
m = hashlib_md5()
m.update(str(key))
return m.hexdigest()
def md5_hash(file_path):
"""this hash function receives the name of the file and returns the hash code"""
readsize = 64 * 1024
with open(file_path, 'rb') as f:
data = f.read(readsize)
f.seek(-readsize, 2)
data += f.read(readsize)
return hashlib_md5(data).hexdigest()
def makeguid(self, data):
"Generate a windows style GUID"
### blah. this function can generate invalid GUIDs. leave it for now,
### but we need to fix it. we can wrap the apr UUID functions, or
### implement this from scratch using the algorithms described in
### http://www.webdav.org/specs/draft-leach-uuids-guids-01.txt
myhash = hashlib_md5(data).hexdigest()
guid = ("{%s-%s-%s-%s-%s}" % (myhash[0:8], myhash[8:12],
myhash[12:16], myhash[16:20],
myhash[20:32])).upper()
return guid
def shooter_hash(file_path):
"see https://docs.google.com/document/d/1w5MCBO61rKQ6hI5m9laJLWse__yTYdRugpVyz4RzrmM/preview"
f_size = getsize(file_path)
if f_size < 8196:
print '文件太小了……你确定选中的是视频文件么……'.encode(getfilesystemencoding())
return None
with open(file_path, 'rb') as f:
f_size_3rd = int(f_size / 3)
# 中间两个顺序反了？作者文档上就是这么写的。。。
offsets = (4096, f_size_3rd * 2, f_size_3rd, f_size - 8192)
result = []
for offset in offsets:
f.seek(offset)
result.append(hashlib_md5(f.read(4096)).hexdigest())
return ';'.join(result)
def gen_seed(self):
# Return a base64-encoded (kinda ... strip the '==\n' from the
# end) MD5 hash of sorted tree listing.
self.allfiles.sort()
return base64.encodestring(hashlib_md5(''.join(self.allfiles)).digest())[:-3]
def md5(text):
if type(text)==unicode:
text = text.encode('utf-8')
text = str(text)
m = hashlib_md5(text)
return m.hexdigest()
def get_file_hash(filename):
key = str(os.path.getmtime(filename)) + filename
return base64.urlsafe_b64encode(hashlib_md5(key).digest()).strip('=')
def __compute_data_hash(cls, data):
jdata = json.dumps(data, sort_keys=True, separators=(',', ':'))
return hashlib_md5(jdata.encode('utf8')).hexdigest()
def gen_seed(self):
# Return a base64-encoded (kinda ... strip the '==\n' from the
# end) MD5 hash of sorted tree listing.
self.allfiles.sort()
return base64.encodestring(
hashlib_md5(''.join(self.allfiles)).digest())[:-3]
