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nyaa/nyaa/utils.py
Nicolas F c405f49eb6 Redo nuke functionality (#459)
This started out as a simple rebase, but then I rebased the wrong
branches and it all got confusing, so here it is as a new dank
commit.

We now have an @admin_only decorator, and we ask for confirmation
before we nuke. We can also see the nuke button when users are
banned, and nuking is a separate endpoint with a separate form.

Additionally, it now uses the new tracker API.
2018-03-25 16:24:44 -07:00

93 lines
2.6 KiB
Python

import functools
import hashlib
import random
import string
from collections import OrderedDict
import flask
def sha1_hash(input_bytes):
""" Hash given bytes with hashlib.sha1 and return the digest (as bytes) """
return hashlib.sha1(input_bytes).digest()
def sorted_pathdict(input_dict):
""" Sorts a parsed torrent filelist dict by alphabat, directories first """
directories = OrderedDict()
files = OrderedDict()
for key, value in input_dict.items():
if isinstance(value, dict):
directories[key] = sorted_pathdict(value)
else:
files[key] = value
return OrderedDict(sorted(directories.items()) + sorted(files.items()))
def random_string(length, charset=None):
if charset is None:
charset = string.ascii_letters + string.digits
return ''.join(random.choice(charset) for i in range(length))
def cached_function(f):
sentinel = object()
f._cached_value = sentinel
@functools.wraps(f)
def decorator(*args, **kwargs):
if f._cached_value is sentinel:
f._cached_value = f(*args, **kwargs)
return f._cached_value
return decorator
def flatten_dict(d, result=None):
if result is None:
result = {}
for key in d:
value = d[key]
if isinstance(value, dict):
value1 = {}
for keyIn in value:
value1["/".join([key, keyIn])] = value[keyIn]
flatten_dict(value1, result)
elif isinstance(value, (list, tuple)):
for indexB, element in enumerate(value):
if isinstance(element, dict):
value1 = {}
index = 0
for keyIn in element:
newkey = "/".join([key, keyIn])
value1[newkey] = value[indexB][keyIn]
index += 1
for keyA in value1:
flatten_dict(value1, result)
else:
result[key] = value
return result
def chain_get(source, *args):
''' Tries to return values from source by the given keys.
Returns None if none match.
Note: can return a None from the source. '''
sentinel = object()
for key in args:
value = source.get(key, sentinel)
if value is not sentinel:
return value
return None
def admin_only(f):
@functools.wraps(f)
def wrapper(*args, **kwargs):
if flask.g.user and flask.g.user.is_superadmin:
return f(*args, **kwargs)
else:
flask.abort(401)
return wrapper