Inside Bitcoin

1#!/usr/bin/env python3
2# Copyright (c) 2015-present The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5"""Test share/rpcauth/rpcauth.py
6"""
7import hmac
8import importlib
9import os
10import re
11import sys
12
13from test_framework.test_framework import BitcoinTestFramework
14from test_framework.util import assert_equal
15
16
17class RpcAuthTest(BitcoinTestFramework):
18    def set_test_params(self):
19        self.num_nodes = 0  # No node/datadir needed
20
21    def setup_network(self):
22        pass
23
24    def setUp(self):
25        sys.path.insert(0, os.path.dirname(self.config["environment"]["RPCAUTH"]))
26        self.rpcauth = importlib.import_module('rpcauth')
27
28    def run_test(self):
29        self.setUp()
30
31        self.test_generate_salt()
32        self.test_generate_password()
33        self.test_check_password_hmac()
34
35    def test_generate_salt(self):
36        for i in range(16, 32 + 1):
37            assert_equal(len(self.rpcauth.generate_salt(i)), i * 2)
38
39    def test_generate_password(self):
40        """Test that generated passwords only consist of urlsafe characters."""
41        r = re.compile(r"[0-9a-zA-Z_-]*")
42        password = self.rpcauth.generate_password()
43        assert r.fullmatch(password)
44
45    def test_check_password_hmac(self):
46        salt = self.rpcauth.generate_salt(16)
47        password = self.rpcauth.generate_password()
48        password_hmac = self.rpcauth.password_to_hmac(salt, password)
49
50        m = hmac.new(salt.encode('utf-8'), password.encode('utf-8'), 'SHA256')
51        expected_password_hmac = m.hexdigest()
52
53        assert_equal(expected_password_hmac, password_hmac)
54
55
56if __name__ == '__main__':
57    RpcAuthTest(__file__).main()
58