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import os
import subprocess
import sys
from pathlib import Path
from django.db.backends.mysql.client import DatabaseClient
from django.test import SimpleTestCase
class MySqlDbshellCommandTestCase(SimpleTestCase):
def settings_to_cmd_args_env(self, settings_dict, parameters=None):
if parameters is None:
parameters = []
return DatabaseClient.settings_to_cmd_args_env(settings_dict, parameters)
def test_fails_with_keyerror_on_incomplete_config(self):
with self.assertRaises(KeyError):
self.settings_to_cmd_args_env({})
def test_basic_params_specified_in_settings(self):
expected_args = [
'mysql',
'--user=someuser',
'--host=somehost',
'--port=444',
'somedbname',
]
expected_env = {'MYSQL_PWD': 'somepassword'}
self.assertEqual(
self.settings_to_cmd_args_env({
'NAME': 'somedbname',
'USER': 'someuser',
'PASSWORD': 'somepassword',
'HOST': 'somehost',
'PORT': 444,
'OPTIONS': {},
}),
(expected_args, expected_env),
)
def test_options_override_settings_proper_values(self):
settings_port = 444
options_port = 555
self.assertNotEqual(settings_port, options_port, 'test pre-req')
expected_args = [
'mysql',
'--user=optionuser',
'--host=optionhost',
'--port=%s' % options_port,
'optiondbname',
]
expected_env = {'MYSQL_PWD': 'optionpassword'}
for keys in [('database', 'password'), ('db', 'passwd')]:
with self.subTest(keys=keys):
database, password = keys
self.assertEqual(
self.settings_to_cmd_args_env({
'NAME': 'settingdbname',
'USER': 'settinguser',
'PASSWORD': 'settingpassword',
'HOST': 'settinghost',
'PORT': settings_port,
'OPTIONS': {
database: 'optiondbname',
'user': 'optionuser',
password: 'optionpassword',
'host': 'optionhost',
'port': options_port,
},
}),
(expected_args, expected_env),
)
def test_options_non_deprecated_keys_preferred(self):
expected_args = [
'mysql',
'--user=someuser',
'--host=somehost',
'--port=444',
'optiondbname',
]
expected_env = {'MYSQL_PWD': 'optionpassword'}
self.assertEqual(
self.settings_to_cmd_args_env({
'NAME': 'settingdbname',
'USER': 'someuser',
'PASSWORD': 'settingpassword',
'HOST': 'somehost',
'PORT': 444,
'OPTIONS': {
'database': 'optiondbname',
'db': 'deprecatedoptiondbname',
'password': 'optionpassword',
'passwd': 'deprecatedoptionpassword',
},
}),
(expected_args, expected_env),
)
def test_options_charset(self):
expected_args = [
'mysql',
'--user=someuser',
'--host=somehost',
'--port=444',
'--default-character-set=utf8',
'somedbname',
]
expected_env = {'MYSQL_PWD': 'somepassword'}
self.assertEqual(
self.settings_to_cmd_args_env({
'NAME': 'somedbname',
'USER': 'someuser',
'PASSWORD': 'somepassword',
'HOST': 'somehost',
'PORT': 444,
'OPTIONS': {'charset': 'utf8'},
}),
(expected_args, expected_env),
)
def test_can_connect_using_sockets(self):
expected_args = [
'mysql',
'--user=someuser',
'--socket=/path/to/mysql.socket.file',
'somedbname',
]
expected_env = {'MYSQL_PWD': 'somepassword'}
self.assertEqual(
self.settings_to_cmd_args_env({
'NAME': 'somedbname',
'USER': 'someuser',
'PASSWORD': 'somepassword',
'HOST': '/path/to/mysql.socket.file',
'PORT': None,
'OPTIONS': {},
}),
(expected_args, expected_env),
)
def test_ssl_certificate_is_added(self):
expected_args = [
'mysql',
'--user=someuser',
'--host=somehost',
'--port=444',
'--ssl-ca=sslca',
'--ssl-cert=sslcert',
'--ssl-key=sslkey',
'somedbname',
]
expected_env = {'MYSQL_PWD': 'somepassword'}
self.assertEqual(
self.settings_to_cmd_args_env({
'NAME': 'somedbname',
'USER': 'someuser',
'PASSWORD': 'somepassword',
'HOST': 'somehost',
'PORT': 444,
'OPTIONS': {
'ssl': {
'ca': 'sslca',
'cert': 'sslcert',
'key': 'sslkey',
},
},
}),
(expected_args, expected_env),
)
def test_parameters(self):
self.assertEqual(
self.settings_to_cmd_args_env(
{
'NAME': 'somedbname',
'USER': None,
'PASSWORD': None,
'HOST': None,
'PORT': None,
'OPTIONS': {},
},
['--help'],
),
(['mysql', 'somedbname', '--help'], None),
)
def test_crash_password_does_not_leak(self):
# The password doesn't leak in an exception that results from a client
# crash.
args, env = DatabaseClient.settings_to_cmd_args_env(
{
'NAME': 'somedbname',
'USER': 'someuser',
'PASSWORD': 'somepassword',
'HOST': 'somehost',
'PORT': 444,
'OPTIONS': {},
},
[],
)
if env:
env = {**os.environ, **env}
fake_client = Path(__file__).with_name('fake_client.py')
args[0:1] = [sys.executable, str(fake_client)]
with self.assertRaises(subprocess.CalledProcessError) as ctx:
subprocess.run(args, check=True, env=env)
self.assertNotIn('somepassword', str(ctx.exception))
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