# Copyright (c) 2011 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import unittest
from contextlib import contextmanager
from base64 import b64encode
from time import time

from swift.common.middleware import tempauth as auth
from swift.common.swob import Request, Response


class FakeMemcache(object):

    def __init__(self):
        self.store = {}

    def get(self, key):
        return self.store.get(key)

    def set(self, key, value, time=0):
        self.store[key] = value
        return True

    def incr(self, key, time=0):
        self.store[key] = self.store.setdefault(key, 0) + 1
        return self.store[key]

    @contextmanager
    def soft_lock(self, key, timeout=0, retries=5):
        yield True

    def delete(self, key):
        try:
            del self.store[key]
        except Exception:
            pass
        return True


class FakeApp(object):

    def __init__(self, status_headers_body_iter=None, acl=None, sync_key=None):
        self.calls = 0
        self.status_headers_body_iter = status_headers_body_iter
        if not self.status_headers_body_iter:
            self.status_headers_body_iter = iter([('404 Not Found', {}, '')])
        self.acl = acl
        self.sync_key = sync_key

    def __call__(self, env, start_response):
        self.calls += 1
        self.request = Request.blank('', environ=env)
        if self.acl:
            self.request.acl = self.acl
        if self.sync_key:
            self.request.environ['swift_sync_key'] = self.sync_key
        if 'swift.authorize' in env:
            resp = env['swift.authorize'](self.request)
            if resp:
                return resp(env, start_response)
        status, headers, body = self.status_headers_body_iter.next()
        return Response(status=status, headers=headers,
                        body=body)(env, start_response)


class FakeConn(object):

    def __init__(self, status_headers_body_iter=None):
        self.calls = 0
        self.status_headers_body_iter = status_headers_body_iter
        if not self.status_headers_body_iter:
            self.status_headers_body_iter = iter([('404 Not Found', {}, '')])

    def request(self, method, path, headers):
        self.calls += 1
        self.request_path = path
        self.status, self.headers, self.body = \
            self.status_headers_body_iter.next()
        self.status, self.reason = self.status.split(' ', 1)
        self.status = int(self.status)

    def getresponse(self):
        return self

    def read(self):
        body = self.body
        self.body = ''
        return body


class TestAuth(unittest.TestCase):

    def setUp(self):
        self.test_auth = auth.filter_factory({})(FakeApp())

    def _make_request(self, path, **kwargs):
        req = Request.blank(path, **kwargs)
        req.environ['swift.cache'] = FakeMemcache()
        return req

    def test_reseller_prefix_init(self):
        app = FakeApp()
        ath = auth.filter_factory({})(app)
        self.assertEquals(ath.reseller_prefix, 'AUTH_')
        ath = auth.filter_factory({'reseller_prefix': 'TEST'})(app)
        self.assertEquals(ath.reseller_prefix, 'TEST_')
        ath = auth.filter_factory({'reseller_prefix': 'TEST_'})(app)
        self.assertEquals(ath.reseller_prefix, 'TEST_')

    def test_auth_prefix_init(self):
        app = FakeApp()
        ath = auth.filter_factory({})(app)
        self.assertEquals(ath.auth_prefix, '/auth/')
        ath = auth.filter_factory({'auth_prefix': ''})(app)
        self.assertEquals(ath.auth_prefix, '/auth/')
        ath = auth.filter_factory({'auth_prefix': '/'})(app)
        self.assertEquals(ath.auth_prefix, '/auth/')
        ath = auth.filter_factory({'auth_prefix': '/test/'})(app)
        self.assertEquals(ath.auth_prefix, '/test/')
        ath = auth.filter_factory({'auth_prefix': '/test'})(app)
        self.assertEquals(ath.auth_prefix, '/test/')
        ath = auth.filter_factory({'auth_prefix': 'test/'})(app)
        self.assertEquals(ath.auth_prefix, '/test/')
        ath = auth.filter_factory({'auth_prefix': 'test'})(app)
        self.assertEquals(ath.auth_prefix, '/test/')

    def test_top_level_deny(self):
        req = self._make_request('/')
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)
        self.assertEquals(req.environ['swift.authorize'],
                          self.test_auth.denied_response)

    def test_anon(self):
        req = self._make_request('/v1/AUTH_account')
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)
        self.assertEquals(req.environ['swift.authorize'],
                          self.test_auth.authorize)

    def test_override_asked_for_but_not_allowed(self):
        self.test_auth = \
            auth.filter_factory({'allow_overrides': 'false'})(FakeApp())
        req = self._make_request('/v1/AUTH_account',
                                 environ={'swift.authorize_override': True})
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)
        self.assertEquals(req.environ['swift.authorize'],
                          self.test_auth.authorize)

    def test_override_asked_for_and_allowed(self):
        self.test_auth = \
            auth.filter_factory({'allow_overrides': 'true'})(FakeApp())
        req = self._make_request('/v1/AUTH_account',
                                 environ={'swift.authorize_override': True})
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 404)
        self.assertTrue('swift.authorize' not in req.environ)

    def test_override_default_allowed(self):
        req = self._make_request('/v1/AUTH_account',
                                 environ={'swift.authorize_override': True})
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 404)
        self.assertTrue('swift.authorize' not in req.environ)

    def test_auth_deny_non_reseller_prefix(self):
        req = self._make_request('/v1/BLAH_account',
                                 headers={'X-Auth-Token': 'BLAH_t'})
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)
        self.assertEquals(req.environ['swift.authorize'],
                          self.test_auth.denied_response)

    def test_auth_deny_non_reseller_prefix_no_override(self):
        fake_authorize = lambda x: Response(status='500 Fake')
        req = self._make_request('/v1/BLAH_account',
                                 headers={'X-Auth-Token': 'BLAH_t'},
                                 environ={'swift.authorize': fake_authorize}
                                 )
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 500)
        self.assertEquals(req.environ['swift.authorize'], fake_authorize)

    def test_auth_no_reseller_prefix_deny(self):
        # Ensures that when we have no reseller prefix, we don't deny a request
        # outright but set up a denial swift.authorize and pass the request on
        # down the chain.
        local_app = FakeApp()
        local_auth = auth.filter_factory({'reseller_prefix': ''})(local_app)
        req = self._make_request('/v1/account',
                                 headers={'X-Auth-Token': 't'})
        resp = req.get_response(local_auth)
        self.assertEquals(resp.status_int, 401)
        self.assertEquals(local_app.calls, 1)
        self.assertEquals(req.environ['swift.authorize'],
                          local_auth.denied_response)

    def test_auth_no_reseller_prefix_no_token(self):
        # Check that normally we set up a call back to our authorize.
        local_auth = \
            auth.filter_factory({'reseller_prefix': ''})(FakeApp(iter([])))
        req = self._make_request('/v1/account')
        resp = req.get_response(local_auth)
        self.assertEquals(resp.status_int, 401)
        self.assertEquals(req.environ['swift.authorize'],
                          local_auth.authorize)
        # Now make sure we don't override an existing swift.authorize when we
        # have no reseller prefix.
        local_auth = \
            auth.filter_factory({'reseller_prefix': ''})(FakeApp())
        local_authorize = lambda req: Response('test')
        req = self._make_request('/v1/account', environ={'swift.authorize':
                                 local_authorize})
        resp = req.get_response(local_auth)
        self.assertEquals(resp.status_int, 200)
        self.assertEquals(req.environ['swift.authorize'], local_authorize)

    def test_auth_fail(self):
        resp = self._make_request(
            '/v1/AUTH_cfa',
            headers={'X-Auth-Token': 'AUTH_t'}).get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_authorize_bad_path(self):
        req = self._make_request('/badpath')
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 401)
        req = self._make_request('/badpath')
        req.remote_user = 'act:usr,act,AUTH_cfa'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

    def test_authorize_account_access(self):
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act,AUTH_cfa'
        self.assertEquals(self.test_auth.authorize(req), None)
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

    def test_authorize_acl_group_access(self):
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act'
        req.acl = 'act'
        self.assertEquals(self.test_auth.authorize(req), None)
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act'
        req.acl = 'act:usr'
        self.assertEquals(self.test_auth.authorize(req), None)
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act'
        req.acl = 'act2'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)
        req = self._make_request('/v1/AUTH_cfa')
        req.remote_user = 'act:usr,act'
        req.acl = 'act:usr2'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

    def test_deny_cross_reseller(self):
        # Tests that cross-reseller is denied, even if ACLs/group names match
        req = self._make_request('/v1/OTHER_cfa')
        req.remote_user = 'act:usr,act,AUTH_cfa'
        req.acl = 'act'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

    def test_authorize_acl_referrer_access(self):
        req = self._make_request('/v1/AUTH_cfa/c')
        req.remote_user = 'act:usr,act'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.remote_user = 'act:usr,act'
        req.acl = '.r:*,.rlistings'
        self.assertEquals(self.test_auth.authorize(req), None)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.remote_user = 'act:usr,act'
        req.acl = '.r:*'  # No listings allowed
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.remote_user = 'act:usr,act'
        req.acl = '.r:.example.com,.rlistings'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.remote_user = 'act:usr,act'
        req.referer = 'http://www.example.com/index.html'
        req.acl = '.r:.example.com,.rlistings'
        self.assertEquals(self.test_auth.authorize(req), None)
        req = self._make_request('/v1/AUTH_cfa/c')
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 401)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.acl = '.r:*,.rlistings'
        self.assertEquals(self.test_auth.authorize(req), None)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.acl = '.r:*'  # No listings allowed
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 401)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.acl = '.r:.example.com,.rlistings'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 401)
        req = self._make_request('/v1/AUTH_cfa/c')
        req.referer = 'http://www.example.com/index.html'
        req.acl = '.r:.example.com,.rlistings'
        self.assertEquals(self.test_auth.authorize(req), None)

    def test_detect_reseller_request(self):
        req = self._make_request('/v1/AUTH_admin',
                                 headers={'X-Auth-Token': 'AUTH_t'})
        cache_key = 'AUTH_/token/AUTH_t'
        cache_entry = (time()+3600, '.reseller_admin')
        req.environ['swift.cache'].set(cache_key, cache_entry)
        req.get_response(self.test_auth)
        self.assertTrue(req.environ.get('reseller_request', False))

    def test_account_put_permissions(self):
        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'PUT'})
        req.remote_user = 'act:usr,act'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'PUT'})
        req.remote_user = 'act:usr,act,AUTH_other'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

        # Even PUTs to your own account as account admin should fail
        req = self._make_request('/v1/AUTH_old',
                                 environ={'REQUEST_METHOD': 'PUT'})
        req.remote_user = 'act:usr,act,AUTH_old'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'PUT'})
        req.remote_user = 'act:usr,act,.reseller_admin'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp, None)

        # .super_admin is not something the middleware should ever see or care
        # about
        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'PUT'})
        req.remote_user = 'act:usr,act,.super_admin'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

    def test_account_delete_permissions(self):
        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'DELETE'})
        req.remote_user = 'act:usr,act'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'DELETE'})
        req.remote_user = 'act:usr,act,AUTH_other'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

        # Even DELETEs to your own account as account admin should fail
        req = self._make_request('/v1/AUTH_old',
                                 environ={'REQUEST_METHOD': 'DELETE'})
        req.remote_user = 'act:usr,act,AUTH_old'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'DELETE'})
        req.remote_user = 'act:usr,act,.reseller_admin'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp, None)

        # .super_admin is not something the middleware should ever see or care
        # about
        req = self._make_request('/v1/AUTH_new',
                                 environ={'REQUEST_METHOD': 'DELETE'})
        req.remote_user = 'act:usr,act,.super_admin'
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp.status_int, 403)

    def test_get_token_fail(self):
        resp = self._make_request('/auth/v1.0').get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)
        resp = self._make_request(
            '/auth/v1.0',
            headers={'X-Auth-User': 'act:usr',
                     'X-Auth-Key': 'key'}).get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_get_token_fail_invalid_x_auth_user_format(self):
        resp = self._make_request(
            '/auth/v1/act/auth',
            headers={'X-Auth-User': 'usr',
                     'X-Auth-Key': 'key'}).get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_get_token_fail_non_matching_account_in_request(self):
        resp = self._make_request(
            '/auth/v1/act/auth',
            headers={'X-Auth-User': 'act2:usr',
                     'X-Auth-Key': 'key'}).get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_get_token_fail_bad_path(self):
        resp = self._make_request(
            '/auth/v1/act/auth/invalid',
            headers={'X-Auth-User': 'act:usr',
                     'X-Auth-Key': 'key'}).get_response(self.test_auth)
        self.assertEquals(resp.status_int, 400)

    def test_get_token_fail_missing_key(self):
        resp = self._make_request(
            '/auth/v1/act/auth',
            headers={'X-Auth-User': 'act:usr'}).get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_storage_url_default(self):
        self.test_auth = \
            auth.filter_factory({'user_test_tester': 'testing'})(FakeApp())
        req = self._make_request(
            '/auth/v1.0',
            headers={'X-Auth-User': 'test:tester', 'X-Auth-Key': 'testing'})
        del req.environ['HTTP_HOST']
        req.environ['SERVER_NAME'] = 'bob'
        req.environ['SERVER_PORT'] = '1234'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 200)
        self.assertEquals(resp.headers['x-storage-url'],
                          'http://bob:1234/v1/AUTH_test')

    def test_storage_url_based_on_host(self):
        self.test_auth = \
            auth.filter_factory({'user_test_tester': 'testing'})(FakeApp())
        req = self._make_request(
            '/auth/v1.0',
            headers={'X-Auth-User': 'test:tester', 'X-Auth-Key': 'testing'})
        req.environ['HTTP_HOST'] = 'somehost:5678'
        req.environ['SERVER_NAME'] = 'bob'
        req.environ['SERVER_PORT'] = '1234'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 200)
        self.assertEquals(resp.headers['x-storage-url'],
                          'http://somehost:5678/v1/AUTH_test')

    def test_storage_url_overriden_scheme(self):
        self.test_auth = \
            auth.filter_factory({'user_test_tester': 'testing',
                                 'storage_url_scheme': 'fake'})(FakeApp())
        req = self._make_request(
            '/auth/v1.0',
            headers={'X-Auth-User': 'test:tester', 'X-Auth-Key': 'testing'})
        req.environ['HTTP_HOST'] = 'somehost:5678'
        req.environ['SERVER_NAME'] = 'bob'
        req.environ['SERVER_PORT'] = '1234'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 200)
        self.assertEquals(resp.headers['x-storage-url'],
                          'fake://somehost:5678/v1/AUTH_test')

    def test_reseller_admin_is_owner(self):
        orig_authorize = self.test_auth.authorize
        owner_values = []

        def mitm_authorize(req):
            rv = orig_authorize(req)
            owner_values.append(req.environ.get('swift_owner', False))
            return rv

        self.test_auth.authorize = mitm_authorize

        req = self._make_request('/v1/AUTH_cfa',
                                 headers={'X-Auth-Token': 'AUTH_t'})
        req.remote_user = '.reseller_admin'
        self.test_auth.authorize(req)
        self.assertEquals(owner_values, [True])

    def test_admin_is_owner(self):
        orig_authorize = self.test_auth.authorize
        owner_values = []

        def mitm_authorize(req):
            rv = orig_authorize(req)
            owner_values.append(req.environ.get('swift_owner', False))
            return rv

        self.test_auth.authorize = mitm_authorize

        req = self._make_request(
            '/v1/AUTH_cfa',
            headers={'X-Auth-Token': 'AUTH_t'})
        req.remote_user = 'AUTH_cfa'
        self.test_auth.authorize(req)
        self.assertEquals(owner_values, [True])

    def test_regular_is_not_owner(self):
        orig_authorize = self.test_auth.authorize
        owner_values = []

        def mitm_authorize(req):
            rv = orig_authorize(req)
            owner_values.append(req.environ.get('swift_owner', False))
            return rv

        self.test_auth.authorize = mitm_authorize

        req = self._make_request(
            '/v1/AUTH_cfa/c',
            headers={'X-Auth-Token': 'AUTH_t'})
        req.remote_user = 'act:usr'
        self.test_auth.authorize(req)
        self.assertEquals(owner_values, [False])

    def test_sync_request_success(self):
        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key='secret')
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'secret',
                     'x-timestamp': '123.456'})
        req.remote_addr = '127.0.0.1'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 204)

    def test_sync_request_fail_key(self):
        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key='secret')
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'wrongsecret',
                     'x-timestamp': '123.456'})
        req.remote_addr = '127.0.0.1'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key='othersecret')
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'secret',
                     'x-timestamp': '123.456'})
        req.remote_addr = '127.0.0.1'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key=None)
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'secret',
                     'x-timestamp': '123.456'})
        req.remote_addr = '127.0.0.1'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_sync_request_fail_no_timestamp(self):
        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key='secret')
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'secret'})
        req.remote_addr = '127.0.0.1'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 401)

    def test_sync_request_success_lb_sync_host(self):
        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key='secret')
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'secret',
                     'x-timestamp': '123.456',
                     'x-forwarded-for': '127.0.0.1'})
        req.remote_addr = '127.0.0.2'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 204)

        self.test_auth.app = FakeApp(iter([('204 No Content', {}, '')]),
                                     sync_key='secret')
        req = self._make_request(
            '/v1/AUTH_cfa/c/o',
            environ={'REQUEST_METHOD': 'DELETE'},
            headers={'x-container-sync-key': 'secret',
                     'x-timestamp': '123.456',
                     'x-cluster-client-ip': '127.0.0.1'})
        req.remote_addr = '127.0.0.2'
        resp = req.get_response(self.test_auth)
        self.assertEquals(resp.status_int, 204)

    def test_options_call(self):
        req = self._make_request('/v1/AUTH_cfa/c/o',
                                 environ={'REQUEST_METHOD': 'OPTIONS'})
        resp = self.test_auth.authorize(req)
        self.assertEquals(resp, None)


class TestParseUserCreation(unittest.TestCase):
    def test_parse_user_creation(self):
        auth_filter = auth.filter_factory({
            'reseller_prefix': 'ABC',
            'user_test_tester3': 'testing',
            'user_has_url': 'urlly .admin http://a.b/v1/DEF_has',
            'user_admin_admin': 'admin .admin .reseller_admin',
        })(FakeApp())
        self.assertEquals(auth_filter.users, {
            'admin:admin': {
                'url': '$HOST/v1/ABC_admin',
                'groups': ['.admin', '.reseller_admin'],
                'key': 'admin'
            }, 'test:tester3': {
                'url': '$HOST/v1/ABC_test',
                'groups': [],
                'key': 'testing'
            }, 'has:url': {
                'url': 'http://a.b/v1/DEF_has',
                'groups': ['.admin'],
                'key': 'urlly'
            },
        })

    def test_base64_encoding(self):
        auth_filter = auth.filter_factory({
            'reseller_prefix': 'ABC',
            'user64_%s_%s' % (
                b64encode('test').rstrip('='),
                b64encode('tester3').rstrip('=')):
            'testing .reseller_admin',
            'user64_%s_%s' % (
                b64encode('user_foo').rstrip('='),
                b64encode('ab').rstrip('=')):
            'urlly .admin http://a.b/v1/DEF_has',
        })(FakeApp())
        self.assertEquals(auth_filter.users, {
            'test:tester3': {
                'url': '$HOST/v1/ABC_test',
                'groups': ['.reseller_admin'],
                'key': 'testing'
            }, 'user_foo:ab': {
                'url': 'http://a.b/v1/DEF_has',
                'groups': ['.admin'],
                'key': 'urlly'
            },
        })

    def test_key_with_no_value(self):
        self.assertRaises(ValueError, auth.filter_factory({
            'user_test_tester3': 'testing',
            'user_bob_bobby': '',
            'user_admin_admin': 'admin .admin .reseller_admin',
        }), FakeApp())


if __name__ == '__main__':
    unittest.main()
