blob: 99541299ccfe8ec10602c562994c170df90e24ec (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
# -*- coding: utf-8 -*-
"""
g_octave.checksum
~~~~~~~~~~~~~~~~~
This module implements functions for compute/generate SHA1 checksums
for DESCRIPTION files.
:copyright: (c) 2010 by Rafael Goncalves Martins
:license: GPL-2, see LICENSE for more details.
"""
from __future__ import absolute_import
__all__ = [
'sha1_compute',
'sha1_check',
'sha1_check_db',
]
import hashlib
import json
import os
from .config import Config
config = Config()
def sha1_compute(filename):
'''Computes the SHA1 checksum of a file'''
with open(filename, 'rb') as fp:
return hashlib.sha1(fp.read()).hexdigest()
def sha1_check(db, p):
'''Checks if the SHA1 checksum of the package is OK.'''
description = db.get(p)
manifest = {}
with open(os.path.join(config.db, 'manifest.json')) as fp:
manifest = json.load(fp)
if p not in manifest:
return False
return manifest[p] == description.sha1sum()
def sha1_check_db(db):
'''Checks if the SHA1 checksums of the package database are OK.'''
for pkg in db:
if not sha1_check(db, pkg.P):
return False
return True
|