|
|
# -*- coding: utf-8 -*-
|
|
|
#
|
|
|
from __future__ import unicode_literals
|
|
|
|
|
|
from collections import OrderedDict
|
|
|
from six import string_types
|
|
|
import base64
|
|
|
import os
|
|
|
from itertools import chain
|
|
|
import string
|
|
|
import logging
|
|
|
import datetime
|
|
|
import time
|
|
|
import hashlib
|
|
|
from email.utils import formatdate
|
|
|
import calendar
|
|
|
import threading
|
|
|
from io import StringIO
|
|
|
|
|
|
import paramiko
|
|
|
import sshpubkeys
|
|
|
from itsdangerous import TimedJSONWebSignatureSerializer, JSONWebSignatureSerializer, \
|
|
|
BadSignature, SignatureExpired
|
|
|
from django.shortcuts import reverse as dj_reverse
|
|
|
from django.conf import settings
|
|
|
from django.utils import timezone
|
|
|
|
|
|
|
|
|
from .compat import to_bytes, to_string
|
|
|
|
|
|
SECRET_KEY = settings.SECRET_KEY
|
|
|
|
|
|
|
|
|
def reverse(view_name, urlconf=None, args=None, kwargs=None,
|
|
|
current_app=None, external=False):
|
|
|
url = dj_reverse(view_name, urlconf=urlconf, args=args,
|
|
|
kwargs=kwargs, current_app=current_app)
|
|
|
|
|
|
if external:
|
|
|
url = settings.SITE_URL.strip('/') + url
|
|
|
return url
|
|
|
|
|
|
|
|
|
def get_object_or_none(model, **kwargs):
|
|
|
try:
|
|
|
obj = model.objects.get(**kwargs)
|
|
|
except model.DoesNotExist:
|
|
|
return None
|
|
|
return obj
|
|
|
|
|
|
|
|
|
class Signer(object):
|
|
|
"""用来加密,解密,和基于时间戳的方式验证token"""
|
|
|
def __init__(self, secret_key=SECRET_KEY):
|
|
|
self.secret_key = secret_key
|
|
|
|
|
|
def sign(self, value):
|
|
|
s = JSONWebSignatureSerializer(self.secret_key)
|
|
|
return s.dumps(value)
|
|
|
|
|
|
def unsign(self, value):
|
|
|
s = JSONWebSignatureSerializer(self.secret_key)
|
|
|
try:
|
|
|
return s.loads(value)
|
|
|
except BadSignature:
|
|
|
return {}
|
|
|
|
|
|
def sign_t(self, value, expires_in=3600):
|
|
|
s = TimedJSONWebSignatureSerializer(self.secret_key, expires_in=expires_in)
|
|
|
return s.dumps(value)
|
|
|
|
|
|
def unsign_t(self, value):
|
|
|
s = TimedJSONWebSignatureSerializer(self.secret_key)
|
|
|
try:
|
|
|
return s.loads(value)
|
|
|
except (BadSignature, SignatureExpired):
|
|
|
return {}
|
|
|
|
|
|
|
|
|
def date_expired_default():
|
|
|
try:
|
|
|
years = int(settings.CONFIG.DEFAULT_EXPIRED_YEARS)
|
|
|
except TypeError:
|
|
|
years = 70
|
|
|
return timezone.now() + timezone.timedelta(days=365*years)
|
|
|
|
|
|
|
|
|
def combine_seq(s1, s2, callback=None):
|
|
|
for s in (s1, s2):
|
|
|
if not hasattr(s, '__iter__'):
|
|
|
return []
|
|
|
|
|
|
seq = chain(s1, s2)
|
|
|
if callback:
|
|
|
seq = map(callback, seq)
|
|
|
return seq
|
|
|
|
|
|
|
|
|
def search_object_attr(obj, value='', attr_list=None, ignore_case=False):
|
|
|
"""It's provide a method to search a object attribute equal some value
|
|
|
|
|
|
If object some attribute equal :param: value, return True else return False
|
|
|
|
|
|
class A():
|
|
|
name = 'admin'
|
|
|
age = 7
|
|
|
|
|
|
:param obj: A object
|
|
|
:param value: A string match object attribute
|
|
|
:param attr_list: Only match attribute in attr_list
|
|
|
:param ignore_case: Ignore case
|
|
|
:return: Boolean
|
|
|
"""
|
|
|
if value == '':
|
|
|
return True
|
|
|
|
|
|
try:
|
|
|
object_attr = obj.__dict__
|
|
|
except AttributeError:
|
|
|
return False
|
|
|
|
|
|
if attr_list is not None:
|
|
|
new_object_attr = {}
|
|
|
for attr in attr_list:
|
|
|
new_object_attr[attr] = object_attr.pop(attr)
|
|
|
object_attr = new_object_attr
|
|
|
|
|
|
if ignore_case:
|
|
|
if not isinstance(value, string_types):
|
|
|
return False
|
|
|
|
|
|
if value.lower() in map(string.lower, map(str, object_attr.values())):
|
|
|
return True
|
|
|
else:
|
|
|
if value in object_attr.values():
|
|
|
return True
|
|
|
return False
|
|
|
|
|
|
|
|
|
def get_logger(name=None):
|
|
|
return logging.getLogger('jumpserver.%s' % name)
|
|
|
|
|
|
|
|
|
def int_seq(seq):
|
|
|
try:
|
|
|
return map(int, seq)
|
|
|
except ValueError:
|
|
|
return seq
|
|
|
|
|
|
|
|
|
def timesince(dt, since='', default="just now"):
|
|
|
"""
|
|
|
Returns string representing "time since" e.g.
|
|
|
3 days, 5 hours.
|
|
|
"""
|
|
|
|
|
|
if since is '':
|
|
|
since = datetime.datetime.utcnow()
|
|
|
|
|
|
if since is None:
|
|
|
return default
|
|
|
|
|
|
diff = since - dt
|
|
|
|
|
|
periods = (
|
|
|
(diff.days / 365, "year", "years"),
|
|
|
(diff.days / 30, "month", "months"),
|
|
|
(diff.days / 7, "week", "weeks"),
|
|
|
(diff.days, "day", "days"),
|
|
|
(diff.seconds / 3600, "hour", "hours"),
|
|
|
(diff.seconds / 60, "minute", "minutes"),
|
|
|
(diff.seconds, "second", "seconds"),
|
|
|
)
|
|
|
|
|
|
for period, singular, plural in periods:
|
|
|
if period:
|
|
|
return "%d %s" % (period, singular if period == 1 else plural)
|
|
|
return default
|
|
|
|
|
|
|
|
|
def ssh_key_string_to_obj(text):
|
|
|
key_f = StringIO(text)
|
|
|
key = None
|
|
|
try:
|
|
|
key = paramiko.RSAKey.from_private_key(key_f)
|
|
|
except paramiko.SSHException:
|
|
|
pass
|
|
|
|
|
|
try:
|
|
|
key = paramiko.DSSKey.from_private_key(key_f)
|
|
|
except paramiko.SSHException:
|
|
|
pass
|
|
|
return key
|
|
|
|
|
|
|
|
|
def ssh_pubkey_gen(private_key=None, username='jumpserver', hostname='localhost'):
|
|
|
if isinstance(private_key, string_types):
|
|
|
private_key = ssh_key_string_to_obj(private_key)
|
|
|
|
|
|
if not isinstance(private_key, (paramiko.RSAKey, paramiko.DSSKey)):
|
|
|
raise IOError('Invalid private key')
|
|
|
|
|
|
public_key = "%(key_type)s %(key_content)s %(username)s@%(hostname)s" % {
|
|
|
'key_type': private_key.get_name(),
|
|
|
'key_content': private_key.get_base64(),
|
|
|
'username': username,
|
|
|
'hostname': hostname,
|
|
|
}
|
|
|
return public_key
|
|
|
|
|
|
|
|
|
def ssh_key_gen(length=2048, type='rsa', password=None, username='jumpserver', hostname=None):
|
|
|
"""Generate user ssh private and public key
|
|
|
|
|
|
Use paramiko RSAKey generate it.
|
|
|
:return private key str and public key str
|
|
|
"""
|
|
|
|
|
|
if hostname is None:
|
|
|
hostname = os.uname()[1]
|
|
|
|
|
|
f = StringIO()
|
|
|
|
|
|
try:
|
|
|
if type == 'rsa':
|
|
|
private_key_obj = paramiko.RSAKey.generate(length)
|
|
|
elif type == 'dsa':
|
|
|
private_key_obj = paramiko.DSSKey.generate(length)
|
|
|
else:
|
|
|
raise IOError('SSH private key must be `rsa` or `dsa`')
|
|
|
private_key_obj.write_private_key(f, password=password)
|
|
|
private_key = f.getvalue()
|
|
|
public_key = ssh_pubkey_gen(private_key_obj, username=username, hostname=hostname)
|
|
|
return private_key, public_key
|
|
|
except IOError:
|
|
|
raise IOError('These is error when generate ssh key.')
|
|
|
|
|
|
|
|
|
def validate_ssh_private_key(text):
|
|
|
key = ssh_key_string_to_obj(text)
|
|
|
if key is None:
|
|
|
return False
|
|
|
else:
|
|
|
return True
|
|
|
|
|
|
|
|
|
def validate_ssh_public_key(text):
|
|
|
ssh = sshpubkeys.SSHKey(text)
|
|
|
try:
|
|
|
ssh.parse()
|
|
|
except (sshpubkeys.InvalidKeyException, UnicodeDecodeError):
|
|
|
return False
|
|
|
except NotImplementedError as e:
|
|
|
return False
|
|
|
return True
|
|
|
|
|
|
|
|
|
def setattr_bulk(seq, key, value):
|
|
|
def set_attr(obj):
|
|
|
setattr(obj, key, value)
|
|
|
return obj
|
|
|
return map(set_attr, seq)
|
|
|
|
|
|
|
|
|
def content_md5(data):
|
|
|
"""计算data的MD5值，经过Base64编码并返回str类型。
|
|
|
|
|
|
返回值可以直接作为HTTP Content-Type头部的值
|
|
|
"""
|
|
|
m = hashlib.md5(to_bytes(data))
|
|
|
return to_string(base64.b64encode(m.digest()))
|
|
|
|
|
|
_STRPTIME_LOCK = threading.Lock()
|
|
|
|
|
|
_GMT_FORMAT = "%a, %d %b %Y %H:%M:%S GMT"
|
|
|
_ISO8601_FORMAT = "%Y-%m-%dT%H:%M:%S.000Z"
|
|
|
|
|
|
|
|
|
def to_unixtime(time_string, format_string):
|
|
|
time_string = time_string.decode("ascii")
|
|
|
with _STRPTIME_LOCK:
|
|
|
return int(calendar.timegm(time.strptime(time_string, format_string)))
|
|
|
|
|
|
|
|
|
def http_date(timeval=None):
|
|
|
"""返回符合HTTP标准的GMT时间字符串，用strftime的格式表示就是"%a, %d %b %Y %H:%M:%S GMT"。
|
|
|
但不能使用strftime，因为strftime的结果是和locale相关的。
|
|
|
"""
|
|
|
return formatdate(timeval, usegmt=True)
|
|
|
|
|
|
|
|
|
def http_to_unixtime(time_string):
|
|
|
"""把HTTP Date格式的字符串转换为UNIX时间（自1970年1月1日UTC零点的秒数）。
|
|
|
|
|
|
HTTP Date形如 `Sat, 05 Dec 2015 11:10:29 GMT` 。
|
|
|
"""
|
|
|
return to_unixtime(time_string, _GMT_FORMAT)
|
|
|
|
|
|
|
|
|
def iso8601_to_unixtime(time_string):
|
|
|
"""把ISO8601时间字符串（形如，2012-02-24T06:07:48.000Z）转换为UNIX时间，精确到秒。"""
|
|
|
return to_unixtime(time_string, _ISO8601_FORMAT)
|
|
|
|
|
|
|
|
|
def make_signature(access_key_secret, date=None):
|
|
|
if isinstance(date, bytes):
|
|
|
date = bytes.decode(date)
|
|
|
if isinstance(date, int):
|
|
|
date_gmt = http_date(date)
|
|
|
elif date is None:
|
|
|
date_gmt = http_date(int(time.time()))
|
|
|
else:
|
|
|
date_gmt = date
|
|
|
|
|
|
data = str(access_key_secret) + "\n" + date_gmt
|
|
|
return content_md5(data)
|
|
|
|
|
|
|
|
|
def encrypt_password(password):
|
|
|
from passlib.hash import sha512_crypt
|
|
|
if password:
|
|
|
return sha512_crypt.using(rounds=5000).hash(password)
|
|
|
return None
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def capacity_convert(size, expect='auto', rate=1000):
|
|
|
"""
|
|
|
:param size: '100MB', '1G'
|
|
|
:param expect: 'K, M, G, T
|
|
|
:param rate: Default 1000, may be 1024
|
|
|
:return:
|
|
|
"""
|
|
|
rate_mapping = (
|
|
|
('K', rate),
|
|
|
('KB', rate),
|
|
|
('M', rate**2),
|
|
|
('MB', rate**2),
|
|
|
('G', rate**3),
|
|
|
('GB', rate**3),
|
|
|
('T', rate**4),
|
|
|
('TB', rate**4),
|
|
|
)
|
|
|
|
|
|
rate_mapping = OrderedDict(rate_mapping)
|
|
|
|
|
|
std_size = 0 # To KB
|
|
|
for unit in rate_mapping:
|
|
|
if size.endswith(unit):
|
|
|
try:
|
|
|
std_size = float(size.strip(unit).strip()) * rate_mapping[unit]
|
|
|
except ValueError:
|
|
|
pass
|
|
|
|
|
|
if expect == 'auto':
|
|
|
for unit, rate_ in rate_mapping.items():
|
|
|
if rate > std_size/rate_ > 1:
|
|
|
expect = unit
|
|
|
break
|
|
|
expect_size = std_size / rate_mapping[expect]
|
|
|
return expect_size, expect
|
|
|
|
|
|
|
|
|
def sum_capacity(cap_list):
|
|
|
total = 0
|
|
|
for cap in cap_list:
|
|
|
size, _ = capacity_convert(cap, expect='K')
|
|
|
total += size
|
|
|
total = '{} K'.format(total)
|
|
|
return capacity_convert(total, expect='auto')
|
|
|
|
|
|
|
|
|
signer = Signer() |
