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009fddc96b
When env is passed to subprocess.run() we should pass all existing environment variables. This fixes crash on Windows: Fatal Python error: failed to get random numbers to initialize Python Fatal Python error: _Py_HashRandomization_Init: failed to get random numbers to initialize Python Python runtime state: preinitialized
132 lines
4.6 KiB
Python
132 lines
4.6 KiB
Python
import os
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import signal
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import subprocess
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import sys
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from pathlib import Path
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from unittest import mock, skipUnless
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from django.db import connection
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from django.db.backends.postgresql.client import DatabaseClient
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from django.test import SimpleTestCase
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class PostgreSqlDbshellCommandTestCase(SimpleTestCase):
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def settings_to_cmd_args_env(self, settings_dict, parameters=None):
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if parameters is None:
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parameters = []
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return DatabaseClient.settings_to_cmd_args_env(settings_dict, parameters)
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def test_basic(self):
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self.assertEqual(
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self.settings_to_cmd_args_env({
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'NAME': 'dbname',
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'USER': 'someuser',
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'PASSWORD': 'somepassword',
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'HOST': 'somehost',
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'PORT': '444',
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}), (
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['psql', '-U', 'someuser', '-h', 'somehost', '-p', '444', 'dbname'],
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{'PGPASSWORD': 'somepassword'},
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)
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)
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def test_nopass(self):
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self.assertEqual(
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self.settings_to_cmd_args_env({
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'NAME': 'dbname',
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'USER': 'someuser',
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'HOST': 'somehost',
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'PORT': '444',
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}), (
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['psql', '-U', 'someuser', '-h', 'somehost', '-p', '444', 'dbname'],
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{},
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)
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)
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def test_ssl_certificate(self):
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self.assertEqual(
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self.settings_to_cmd_args_env({
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'NAME': 'dbname',
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'USER': 'someuser',
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'HOST': 'somehost',
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'PORT': '444',
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'OPTIONS': {
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'sslmode': 'verify-ca',
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'sslrootcert': 'root.crt',
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'sslcert': 'client.crt',
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'sslkey': 'client.key',
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},
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}), (
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['psql', '-U', 'someuser', '-h', 'somehost', '-p', '444', 'dbname'],
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{
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'PGSSLCERT': 'client.crt',
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'PGSSLKEY': 'client.key',
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'PGSSLMODE': 'verify-ca',
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'PGSSLROOTCERT': 'root.crt',
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},
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)
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)
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def test_column(self):
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self.assertEqual(
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self.settings_to_cmd_args_env({
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'NAME': 'dbname',
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'USER': 'some:user',
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'PASSWORD': 'some:password',
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'HOST': '::1',
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'PORT': '444',
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}), (
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['psql', '-U', 'some:user', '-h', '::1', '-p', '444', 'dbname'],
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{'PGPASSWORD': 'some:password'},
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)
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)
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def test_accent(self):
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username = 'rôle'
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password = 'sésame'
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self.assertEqual(
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self.settings_to_cmd_args_env({
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'NAME': 'dbname',
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'USER': username,
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'PASSWORD': password,
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'HOST': 'somehost',
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'PORT': '444',
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}), (
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['psql', '-U', username, '-h', 'somehost', '-p', '444', 'dbname'],
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{'PGPASSWORD': password},
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)
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)
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def test_parameters(self):
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self.assertEqual(
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self.settings_to_cmd_args_env({'NAME': 'dbname'}, ['--help']),
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(['psql', 'dbname', '--help'], {}),
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)
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@skipUnless(connection.vendor == 'postgresql', 'Requires a PostgreSQL connection')
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def test_sigint_handler(self):
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"""SIGINT is ignored in Python and passed to psql to abort queries."""
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def _mock_subprocess_run(*args, **kwargs):
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handler = signal.getsignal(signal.SIGINT)
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self.assertEqual(handler, signal.SIG_IGN)
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sigint_handler = signal.getsignal(signal.SIGINT)
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# The default handler isn't SIG_IGN.
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self.assertNotEqual(sigint_handler, signal.SIG_IGN)
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with mock.patch('subprocess.run', new=_mock_subprocess_run):
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connection.client.runshell([])
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# dbshell restores the original handler.
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self.assertEqual(sigint_handler, signal.getsignal(signal.SIGINT))
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def test_crash_password_does_not_leak(self):
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# The password doesn't leak in an exception that results from a client
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# crash.
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args, env = self.settings_to_cmd_args_env({'PASSWORD': 'somepassword'}, [])
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if env:
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env = {**os.environ, **env}
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fake_client = Path(__file__).with_name('fake_client.py')
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args[0:1] = [sys.executable, str(fake_client)]
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with self.assertRaises(subprocess.CalledProcessError) as ctx:
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subprocess.run(args, check=True, env=env)
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self.assertNotIn('somepassword', str(ctx.exception))
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