1# -*- coding: utf-8 -*- 

2 

3""" 

4interfaces around python-apt 

5 

6@copyright: 2020 😸 <😸@43-1.org> 

7@license: GNU General Public License version 2 or later 

8""" 

9 

10# This program is free software; you can redistribute it and/or modify 

11# it under the terms of the GNU General Public License as published by 

12# the Free Software Foundation; either version 2 of the License, or 

13# (at your option) any later version. 

14# 

15# This program is distributed in the hope that it will be useful, 

16# but WITHOUT ANY WARRANTY; without even the implied warranty of 

17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

18# GNU General Public License for more details. 

19# 

20# You should have received a copy of the GNU General Public License 

21# along with this program. If not, see <https://www.gnu.org/licenses/>. 

22 

23import apt_pkg 

24 

25 

26class DakHashes: 

27 """ 

28 wrapper around `apt_pkg.Hashes` 

29 """ 

30 def __init__(self, *args, **kwargs): 

31 self._apt_hashes = apt_pkg.Hashes(*args, **kwargs) 

32 

33 # python-apt in Debian 10 (buster) uses 

34 # `apt_pkg.Hashes(...).md5` 

35 # but in Debian bullseye it switched to 

36 # `apt_pkg.Hashes(...).find('md5sum').hashvalue` 

37 def _hashvalue(self, name): 

38 h = self._apt_hashes.hashes.find(name) 

39 try: 

40 return h.hashvalue 

41 except AttributeError: 

42 return str(h)[len(name) + 1:] 

43 

44 @property 

45 def md5(self) -> str: 

46 return self._hashvalue('md5sum') 

47 

48 @property 

49 def sha1(self) -> str: 

50 return self._hashvalue('sha1') 

51 

52 @property 

53 def sha256(self) -> str: 

54 return self._hashvalue('sha256')