# Copyright (c) 2010 OpenStack Foundation # # 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. """Tests for swift.common.wsgi""" import errno import logging import mimetools import socket import unittest import os import pickle from textwrap import dedent from gzip import GzipFile from contextlib import nested from StringIO import StringIO from collections import defaultdict from contextlib import closing from urllib import quote from eventlet import listen import mock import swift.common.middleware.catch_errors import swift.common.middleware.gatekeeper import swift.proxy.server from swift.common.swob import Request from swift.common import wsgi, utils, ring from test.unit import temptree from paste.deploy import loadwsgi def _fake_rings(tmpdir): account_ring_path = os.path.join(tmpdir, 'account.ring.gz') with closing(GzipFile(account_ring_path, 'wb')) as f: pickle.dump(ring.RingData([[0, 1, 0, 1], [1, 0, 1, 0]], [{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1', 'port': 6012}, {'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1', 'port': 6022}], 30), f) container_ring_path = os.path.join(tmpdir, 'container.ring.gz') with closing(GzipFile(container_ring_path, 'wb')) as f: pickle.dump(ring.RingData([[0, 1, 0, 1], [1, 0, 1, 0]], [{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1', 'port': 6011}, {'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1', 'port': 6021}], 30), f) object_ring_path = os.path.join(tmpdir, 'object.ring.gz') with closing(GzipFile(object_ring_path, 'wb')) as f: pickle.dump(ring.RingData([[0, 1, 0, 1], [1, 0, 1, 0]], [{'id': 0, 'zone': 0, 'device': 'sda1', 'ip': '127.0.0.1', 'port': 6010}, {'id': 1, 'zone': 1, 'device': 'sdb1', 'ip': '127.0.0.1', 'port': 6020}], 30), f) class TestWSGI(unittest.TestCase): """Tests for swift.common.wsgi""" def setUp(self): utils.HASH_PATH_PREFIX = 'startcap' self._orig_parsetype = mimetools.Message.parsetype def tearDown(self): mimetools.Message.parsetype = self._orig_parsetype def test_monkey_patch_mimetools(self): sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).type, 'text/plain') sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).plisttext, '') sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).maintype, 'text') sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).subtype, 'plain') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).type, 'text/html') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).plisttext, '; charset=ISO-8859-4') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).maintype, 'text') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).subtype, 'html') wsgi.monkey_patch_mimetools() sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).type, None) sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).plisttext, '') sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).maintype, None) sio = StringIO('blah') self.assertEquals(mimetools.Message(sio).subtype, None) sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).type, 'text/html') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).plisttext, '; charset=ISO-8859-4') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).maintype, 'text') sio = StringIO('Content-Type: text/html; charset=ISO-8859-4') self.assertEquals(mimetools.Message(sio).subtype, 'html') def test_init_request_processor(self): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 """ contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) app, conf, logger, log_name = wsgi.init_request_processor( conf_file, 'proxy-server') # verify pipeline is catch_errors -> dlo -> proxy-server expected = swift.common.middleware.catch_errors.CatchErrorMiddleware self.assert_(isinstance(app, expected)) app = app.app expected = swift.common.middleware.gatekeeper.GatekeeperMiddleware self.assert_(isinstance(app, expected)) app = app.app expected = swift.common.middleware.dlo.DynamicLargeObject self.assert_(isinstance(app, expected)) app = app.app expected = swift.proxy.server.Application self.assert_(isinstance(app, expected)) # config settings applied to app instance self.assertEquals(0.2, app.conn_timeout) # appconfig returns values from 'proxy-server' section expected = { '__file__': conf_file, 'here': os.path.dirname(conf_file), 'conn_timeout': '0.2', 'swift_dir': t, } self.assertEquals(expected, conf) # logger works logger.info('testing') self.assertEquals('proxy-server', log_name) def test_init_request_processor_from_conf_dir(self): config_dir = { 'proxy-server.conf.d/pipeline.conf': """ [pipeline:main] pipeline = catch_errors proxy-server """, 'proxy-server.conf.d/app.conf': """ [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 """, 'proxy-server.conf.d/catch-errors.conf': """ [filter:catch_errors] use = egg:swift#catch_errors """ } # strip indent from test config contents config_dir = dict((f, dedent(c)) for (f, c) in config_dir.items()) with mock.patch('swift.proxy.server.Application.modify_wsgi_pipeline'): with temptree(*zip(*config_dir.items())) as conf_root: conf_dir = os.path.join(conf_root, 'proxy-server.conf.d') with open(os.path.join(conf_dir, 'swift.conf'), 'w') as f: f.write('[DEFAULT]\nswift_dir = %s' % conf_root) _fake_rings(conf_root) app, conf, logger, log_name = wsgi.init_request_processor( conf_dir, 'proxy-server') # verify pipeline is catch_errors -> proxy-server expected = swift.common.middleware.catch_errors.CatchErrorMiddleware self.assert_(isinstance(app, expected)) self.assert_(isinstance(app.app, swift.proxy.server.Application)) # config settings applied to app instance self.assertEquals(0.2, app.app.conn_timeout) # appconfig returns values from 'proxy-server' section expected = { '__file__': conf_dir, 'here': conf_dir, 'conn_timeout': '0.2', 'swift_dir': conf_root, } self.assertEquals(expected, conf) # logger works logger.info('testing') self.assertEquals('proxy-server', log_name) def test_get_socket(self): # stubs conf = {} ssl_conf = { 'cert_file': '', 'key_file': '', } # mocks class MockSocket(): def __init__(self): self.opts = defaultdict(dict) def setsockopt(self, level, optname, value): self.opts[level][optname] = value def mock_listen(*args, **kwargs): return MockSocket() class MockSsl(): def __init__(self): self.wrap_socket_called = [] def wrap_socket(self, sock, **kwargs): self.wrap_socket_called.append(kwargs) return sock # patch old_listen = wsgi.listen old_ssl = wsgi.ssl try: wsgi.listen = mock_listen wsgi.ssl = MockSsl() # test sock = wsgi.get_socket(conf) # assert self.assert_(isinstance(sock, MockSocket)) expected_socket_opts = { socket.SOL_SOCKET: { socket.SO_REUSEADDR: 1, socket.SO_KEEPALIVE: 1, }, socket.IPPROTO_TCP: { socket.TCP_NODELAY: 1, } } if hasattr(socket, 'TCP_KEEPIDLE'): expected_socket_opts[socket.IPPROTO_TCP][ socket.TCP_KEEPIDLE] = 600 self.assertEquals(sock.opts, expected_socket_opts) # test ssl sock = wsgi.get_socket(ssl_conf) expected_kwargs = { 'certfile': '', 'keyfile': '', } self.assertEquals(wsgi.ssl.wrap_socket_called, [expected_kwargs]) finally: wsgi.listen = old_listen wsgi.ssl = old_ssl def test_address_in_use(self): # stubs conf = {} # mocks def mock_listen(*args, **kwargs): raise socket.error(errno.EADDRINUSE) def value_error_listen(*args, **kwargs): raise ValueError('fake') def mock_sleep(*args): pass class MockTime(): """Fast clock advances 10 seconds after every call to time """ def __init__(self): self.current_time = old_time.time() def time(self, *args, **kwargs): rv = self.current_time # advance for next call self.current_time += 10 return rv old_listen = wsgi.listen old_sleep = wsgi.sleep old_time = wsgi.time try: wsgi.listen = mock_listen wsgi.sleep = mock_sleep wsgi.time = MockTime() # test error self.assertRaises(Exception, wsgi.get_socket, conf) # different error wsgi.listen = value_error_listen self.assertRaises(ValueError, wsgi.get_socket, conf) finally: wsgi.listen = old_listen wsgi.sleep = old_sleep wsgi.time = old_time def test_run_server(self): config = """ [DEFAULT] eventlet_debug = yes client_timeout = 30 max_clients = 1000 swift_dir = TEMPDIR [pipeline:main] pipeline = proxy-server [app:proxy-server] use = egg:swift#proxy # while "set" values normally override default set client_timeout = 20 # this section is not in conf during run_server set max_clients = 10 """ contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) with mock.patch('swift.proxy.server.Application.' 'modify_wsgi_pipeline'): with mock.patch('swift.common.wsgi.wsgi') as _wsgi: with mock.patch('swift.common.wsgi.eventlet') as _eventlet: conf = wsgi.appconfig(conf_file) logger = logging.getLogger('test') sock = listen(('localhost', 0)) wsgi.run_server(conf, logger, sock) self.assertEquals('HTTP/1.0', _wsgi.HttpProtocol.default_request_version) self.assertEquals(30, _wsgi.WRITE_TIMEOUT) _eventlet.hubs.use_hub.assert_called_with(utils.get_hub()) _eventlet.patcher.monkey_patch.assert_called_with(all=False, socket=True) _eventlet.debug.hub_exceptions.assert_called_with(True) _wsgi.server.assert_called() args, kwargs = _wsgi.server.call_args server_sock, server_app, server_logger = args self.assertEquals(sock, server_sock) self.assert_(isinstance(server_app, swift.proxy.server.Application)) self.assertEquals(20, server_app.client_timeout) self.assert_(isinstance(server_logger, wsgi.NullLogger)) self.assert_('custom_pool' in kwargs) self.assertEquals(1000, kwargs['custom_pool'].size) def test_run_server_conf_dir(self): config_dir = { 'proxy-server.conf.d/pipeline.conf': """ [pipeline:main] pipeline = proxy-server """, 'proxy-server.conf.d/app.conf': """ [app:proxy-server] use = egg:swift#proxy """, 'proxy-server.conf.d/default.conf': """ [DEFAULT] eventlet_debug = yes client_timeout = 30 """ } # strip indent from test config contents config_dir = dict((f, dedent(c)) for (f, c) in config_dir.items()) with temptree(*zip(*config_dir.items())) as conf_root: conf_dir = os.path.join(conf_root, 'proxy-server.conf.d') with open(os.path.join(conf_dir, 'swift.conf'), 'w') as f: f.write('[DEFAULT]\nswift_dir = %s' % conf_root) _fake_rings(conf_root) with mock.patch('swift.proxy.server.Application.' 'modify_wsgi_pipeline'): with mock.patch('swift.common.wsgi.wsgi') as _wsgi: with mock.patch('swift.common.wsgi.eventlet') as _eventlet: with mock.patch.dict('os.environ', {'TZ': ''}): conf = wsgi.appconfig(conf_dir) logger = logging.getLogger('test') sock = listen(('localhost', 0)) wsgi.run_server(conf, logger, sock) self.assert_(os.environ['TZ'] is not '') self.assertEquals('HTTP/1.0', _wsgi.HttpProtocol.default_request_version) self.assertEquals(30, _wsgi.WRITE_TIMEOUT) _eventlet.hubs.use_hub.assert_called_with(utils.get_hub()) _eventlet.patcher.monkey_patch.assert_called_with(all=False, socket=True) _eventlet.debug.hub_exceptions.assert_called_with(True) _wsgi.server.assert_called() args, kwargs = _wsgi.server.call_args server_sock, server_app, server_logger = args self.assertEquals(sock, server_sock) self.assert_(isinstance(server_app, swift.proxy.server.Application)) self.assert_(isinstance(server_logger, wsgi.NullLogger)) self.assert_('custom_pool' in kwargs) def test_appconfig_dir_ignores_hidden_files(self): config_dir = { 'server.conf.d/01.conf': """ [app:main] use = egg:swift#proxy port = 8080 """, 'server.conf.d/.01.conf.swp': """ [app:main] use = egg:swift#proxy port = 8081 """, } # strip indent from test config contents config_dir = dict((f, dedent(c)) for (f, c) in config_dir.items()) with temptree(*zip(*config_dir.items())) as path: conf_dir = os.path.join(path, 'server.conf.d') conf = wsgi.appconfig(conf_dir) expected = { '__file__': os.path.join(path, 'server.conf.d'), 'here': os.path.join(path, 'server.conf.d'), 'port': '8080', } self.assertEquals(conf, expected) def test_pre_auth_wsgi_input(self): oldenv = {} newenv = wsgi.make_pre_authed_env(oldenv) self.assertTrue('wsgi.input' in newenv) self.assertEquals(newenv['wsgi.input'].read(), '') oldenv = {'wsgi.input': StringIO('original wsgi.input')} newenv = wsgi.make_pre_authed_env(oldenv) self.assertTrue('wsgi.input' in newenv) self.assertEquals(newenv['wsgi.input'].read(), '') oldenv = {'swift.source': 'UT'} newenv = wsgi.make_pre_authed_env(oldenv) self.assertEquals(newenv['swift.source'], 'UT') oldenv = {'swift.source': 'UT'} newenv = wsgi.make_pre_authed_env(oldenv, swift_source='SA') self.assertEquals(newenv['swift.source'], 'SA') def test_pre_auth_req(self): class FakeReq(object): @classmethod def fake_blank(cls, path, environ={}, body='', headers={}): self.assertEquals(environ['swift.authorize']('test'), None) self.assertFalse('HTTP_X_TRANS_ID' in environ) was_blank = Request.blank Request.blank = FakeReq.fake_blank wsgi.make_pre_authed_request({'HTTP_X_TRANS_ID': '1234'}, 'PUT', '/', body='tester', headers={}) wsgi.make_pre_authed_request({'HTTP_X_TRANS_ID': '1234'}, 'PUT', '/', headers={}) Request.blank = was_blank def test_pre_auth_req_with_quoted_path(self): r = wsgi.make_pre_authed_request( {'HTTP_X_TRANS_ID': '1234'}, 'PUT', path=quote('/a space'), body='tester', headers={}) self.assertEquals(r.path, quote('/a space')) def test_pre_auth_req_drops_query(self): r = wsgi.make_pre_authed_request( {'QUERY_STRING': 'original'}, 'GET', 'path') self.assertEquals(r.query_string, 'original') r = wsgi.make_pre_authed_request( {'QUERY_STRING': 'original'}, 'GET', 'path?replacement') self.assertEquals(r.query_string, 'replacement') r = wsgi.make_pre_authed_request( {'QUERY_STRING': 'original'}, 'GET', 'path?') self.assertEquals(r.query_string, '') def test_pre_auth_req_with_body(self): r = wsgi.make_pre_authed_request( {'QUERY_STRING': 'original'}, 'GET', 'path', 'the body') self.assertEquals(r.body, 'the body') def test_pre_auth_creates_script_name(self): e = wsgi.make_pre_authed_env({}) self.assertTrue('SCRIPT_NAME' in e) def test_pre_auth_copies_script_name(self): e = wsgi.make_pre_authed_env({'SCRIPT_NAME': '/script_name'}) self.assertEquals(e['SCRIPT_NAME'], '/script_name') def test_pre_auth_copies_script_name_unless_path_overridden(self): e = wsgi.make_pre_authed_env({'SCRIPT_NAME': '/script_name'}, path='/override') self.assertEquals(e['SCRIPT_NAME'], '') self.assertEquals(e['PATH_INFO'], '/override') def test_pre_auth_req_swift_source(self): r = wsgi.make_pre_authed_request( {'QUERY_STRING': 'original'}, 'GET', 'path', 'the body', swift_source='UT') self.assertEquals(r.body, 'the body') self.assertEquals(r.environ['swift.source'], 'UT') def test_run_server_global_conf_callback(self): calls = defaultdict(lambda: 0) def _initrp(conf_file, app_section, *args, **kwargs): return ( {'__file__': 'test', 'workers': 0}, 'logger', 'log_name') def _global_conf_callback(preloaded_app_conf, global_conf): calls['_global_conf_callback'] += 1 self.assertEqual( preloaded_app_conf, {'__file__': 'test', 'workers': 0}) self.assertEqual(global_conf, {'log_name': 'log_name'}) global_conf['test1'] = 'one' def _loadapp(uri, name=None, **kwargs): calls['_loadapp'] += 1 self.assertTrue('global_conf' in kwargs) self.assertEqual(kwargs['global_conf'], {'log_name': 'log_name', 'test1': 'one'}) with nested( mock.patch.object(wsgi, '_initrp', _initrp), mock.patch.object(wsgi, 'get_socket'), mock.patch.object(wsgi, 'drop_privileges'), mock.patch.object(wsgi, 'loadapp', _loadapp), mock.patch.object(wsgi, 'capture_stdio'), mock.patch.object(wsgi, 'run_server')): wsgi.run_wsgi('conf_file', 'app_section', global_conf_callback=_global_conf_callback) self.assertEqual(calls['_global_conf_callback'], 1) self.assertEqual(calls['_loadapp'], 1) def test_run_server_success(self): calls = defaultdict(lambda: 0) def _initrp(conf_file, app_section, *args, **kwargs): calls['_initrp'] += 1 return ( {'__file__': 'test', 'workers': 0}, 'logger', 'log_name') def _loadapp(uri, name=None, **kwargs): calls['_loadapp'] += 1 with nested( mock.patch.object(wsgi, '_initrp', _initrp), mock.patch.object(wsgi, 'get_socket'), mock.patch.object(wsgi, 'drop_privileges'), mock.patch.object(wsgi, 'loadapp', _loadapp), mock.patch.object(wsgi, 'capture_stdio'), mock.patch.object(wsgi, 'run_server')): rc = wsgi.run_wsgi('conf_file', 'app_section') self.assertEqual(calls['_initrp'], 1) self.assertEqual(calls['_loadapp'], 1) self.assertEqual(rc, 0) def test_run_server_failure1(self): calls = defaultdict(lambda: 0) def _initrp(conf_file, app_section, *args, **kwargs): calls['_initrp'] += 1 raise wsgi.ConfigFileError('test exception') def _loadapp(uri, name=None, **kwargs): calls['_loadapp'] += 1 with nested( mock.patch.object(wsgi, '_initrp', _initrp), mock.patch.object(wsgi, 'get_socket'), mock.patch.object(wsgi, 'drop_privileges'), mock.patch.object(wsgi, 'loadapp', _loadapp), mock.patch.object(wsgi, 'capture_stdio'), mock.patch.object(wsgi, 'run_server')): rc = wsgi.run_wsgi('conf_file', 'app_section') self.assertEqual(calls['_initrp'], 1) self.assertEqual(calls['_loadapp'], 0) self.assertEqual(rc, 1) def test_pre_auth_req_with_empty_env_no_path(self): r = wsgi.make_pre_authed_request( {}, 'GET') self.assertEquals(r.path, quote('')) self.assertTrue('SCRIPT_NAME' in r.environ) self.assertTrue('PATH_INFO' in r.environ) def test_pre_auth_req_with_env_path(self): r = wsgi.make_pre_authed_request( {'PATH_INFO': '/unquoted path with %20'}, 'GET') self.assertEquals(r.path, quote('/unquoted path with %20')) self.assertEquals(r.environ['SCRIPT_NAME'], '') def test_pre_auth_req_with_env_script(self): r = wsgi.make_pre_authed_request({'SCRIPT_NAME': '/hello'}, 'GET') self.assertEquals(r.path, quote('/hello')) def test_pre_auth_req_with_env_path_and_script(self): env = {'PATH_INFO': '/unquoted path with %20', 'SCRIPT_NAME': '/script'} r = wsgi.make_pre_authed_request(env, 'GET') expected_path = quote(env['SCRIPT_NAME'] + env['PATH_INFO']) self.assertEquals(r.path, expected_path) env = {'PATH_INFO': '', 'SCRIPT_NAME': '/script'} r = wsgi.make_pre_authed_request(env, 'GET') self.assertEquals(r.path, '/script') env = {'PATH_INFO': '/path', 'SCRIPT_NAME': ''} r = wsgi.make_pre_authed_request(env, 'GET') self.assertEquals(r.path, '/path') env = {'PATH_INFO': '', 'SCRIPT_NAME': ''} r = wsgi.make_pre_authed_request(env, 'GET') self.assertEquals(r.path, '') def test_pre_auth_req_path_overrides_env(self): env = {'PATH_INFO': '/path', 'SCRIPT_NAME': '/script'} r = wsgi.make_pre_authed_request(env, 'GET', '/override') self.assertEquals(r.path, '/override') self.assertEquals(r.environ['SCRIPT_NAME'], '') self.assertEquals(r.environ['PATH_INFO'], '/override') class TestWSGIContext(unittest.TestCase): def test_app_call(self): statuses = ['200 Ok', '404 Not Found'] def app(env, start_response): start_response(statuses.pop(0), [('Content-Length', '3')]) yield 'Ok\n' wc = wsgi.WSGIContext(app) r = Request.blank('/') it = wc._app_call(r.environ) self.assertEquals(wc._response_status, '200 Ok') self.assertEquals(''.join(it), 'Ok\n') r = Request.blank('/') it = wc._app_call(r.environ) self.assertEquals(wc._response_status, '404 Not Found') self.assertEquals(''.join(it), 'Ok\n') def test_app_iter_is_closable(self): def app(env, start_response): start_response('200 OK', [('Content-Length', '25')]) yield 'aaaaa' yield 'bbbbb' yield 'ccccc' yield 'ddddd' yield 'eeeee' wc = wsgi.WSGIContext(app) r = Request.blank('/') iterable = wc._app_call(r.environ) self.assertEquals(wc._response_status, '200 OK') iterator = iter(iterable) self.assertEqual('aaaaa', iterator.next()) self.assertEqual('bbbbb', iterator.next()) iterable.close() self.assertRaises(StopIteration, iterator.next) class TestPipelineWrapper(unittest.TestCase): def setUp(self): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = healthcheck catch_errors tempurl proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 [filter:catch_errors] use = egg:swift#catch_errors [filter:healthcheck] use = egg:swift#healthcheck [filter:tempurl] paste.filter_factory = swift.common.middleware.tempurl:filter_factory """ contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) ctx = wsgi.loadcontext(loadwsgi.APP, conf_file, global_conf={}) self.pipe = wsgi.PipelineWrapper(ctx) def _entry_point_names(self): # Helper method to return a list of the entry point names for the # filters in the pipeline. return [c.entry_point_name for c in self.pipe.context.filter_contexts] def test_startswith(self): self.assertTrue(self.pipe.startswith("healthcheck")) self.assertFalse(self.pipe.startswith("tempurl")) def test_startswith_no_filters(self): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 """ contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) ctx = wsgi.loadcontext(loadwsgi.APP, conf_file, global_conf={}) pipe = wsgi.PipelineWrapper(ctx) self.assertTrue(pipe.startswith('proxy')) def test_insert_filter(self): original_modules = ['healthcheck', 'catch_errors', None] self.assertEqual(self._entry_point_names(), original_modules) self.pipe.insert_filter(self.pipe.create_filter('catch_errors')) expected_modules = ['catch_errors', 'healthcheck', 'catch_errors', None] self.assertEqual(self._entry_point_names(), expected_modules) def test_str(self): self.assertEqual( str(self.pipe), "healthcheck catch_errors " + "swift.common.middleware.tempurl:filter_factory proxy") def test_str_unknown_filter(self): self.pipe.context.filter_contexts[0].entry_point_name = None self.pipe.context.filter_contexts[0].object = 'mysterious' self.assertEqual( str(self.pipe), " catch_errors " + "swift.common.middleware.tempurl:filter_factory proxy") class TestPipelineModification(unittest.TestCase): def pipeline_modules(self, app): # This is rather brittle; it'll break if a middleware stores its app # anywhere other than an attribute named "app", but it works for now. pipe = [] for _ in xrange(1000): pipe.append(app.__class__.__module__) if not hasattr(app, 'app'): break app = app.app return pipe def test_load_app(self): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = healthcheck proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 [filter:catch_errors] use = egg:swift#catch_errors [filter:healthcheck] use = egg:swift#healthcheck """ def modify_func(app, pipe): new = pipe.create_filter('catch_errors') pipe.insert_filter(new) contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) with mock.patch( 'swift.proxy.server.Application.modify_wsgi_pipeline', modify_func): app = wsgi.loadapp(conf_file, global_conf={}) exp = swift.common.middleware.catch_errors.CatchErrorMiddleware self.assertTrue(isinstance(app, exp), app) exp = swift.common.middleware.healthcheck.HealthCheckMiddleware self.assertTrue(isinstance(app.app, exp), app.app) exp = swift.proxy.server.Application self.assertTrue(isinstance(app.app.app, exp), app.app.app) def test_proxy_unmodified_wsgi_pipeline(self): # Make sure things are sane even when we modify nothing config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = catch_errors gatekeeper proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 [filter:catch_errors] use = egg:swift#catch_errors [filter:gatekeeper] use = egg:swift#gatekeeper """ contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) app = wsgi.loadapp(conf_file, global_conf={}) self.assertEqual(self.pipeline_modules(app), ['swift.common.middleware.catch_errors', 'swift.common.middleware.gatekeeper', 'swift.common.middleware.dlo', 'swift.proxy.server']) def test_proxy_modify_wsgi_pipeline(self): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = healthcheck proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 [filter:healthcheck] use = egg:swift#healthcheck """ contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) app = wsgi.loadapp(conf_file, global_conf={}) self.assertEqual(self.pipeline_modules(app), ['swift.common.middleware.catch_errors', 'swift.common.middleware.gatekeeper', 'swift.common.middleware.dlo', 'swift.common.middleware.healthcheck', 'swift.proxy.server']) def test_proxy_modify_wsgi_pipeline_ordering(self): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = healthcheck proxy-logging bulk tempurl proxy-server [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 [filter:healthcheck] use = egg:swift#healthcheck [filter:proxy-logging] use = egg:swift#proxy_logging [filter:bulk] use = egg:swift#bulk [filter:tempurl] use = egg:swift#tempurl """ new_req_filters = [ # not in pipeline, no afters {'name': 'catch_errors'}, # already in pipeline {'name': 'proxy_logging', 'after_fn': lambda _: ['catch_errors']}, # not in pipeline, comes after more than one thing {'name': 'container_quotas', 'after_fn': lambda _: ['catch_errors', 'bulk']}] contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) with mock.patch.object(swift.proxy.server, 'required_filters', new_req_filters): app = wsgi.loadapp(conf_file, global_conf={}) self.assertEqual(self.pipeline_modules(app), [ 'swift.common.middleware.catch_errors', 'swift.common.middleware.healthcheck', 'swift.common.middleware.proxy_logging', 'swift.common.middleware.bulk', 'swift.common.middleware.container_quotas', 'swift.common.middleware.tempurl', 'swift.proxy.server']) def _proxy_modify_wsgi_pipeline(self, pipe): config = """ [DEFAULT] swift_dir = TEMPDIR [pipeline:main] pipeline = %s [app:proxy-server] use = egg:swift#proxy conn_timeout = 0.2 [filter:healthcheck] use = egg:swift#healthcheck [filter:catch_errors] use = egg:swift#catch_errors [filter:gatekeeper] use = egg:swift#gatekeeper """ config = config % (pipe,) contents = dedent(config) with temptree(['proxy-server.conf']) as t: conf_file = os.path.join(t, 'proxy-server.conf') with open(conf_file, 'w') as f: f.write(contents.replace('TEMPDIR', t)) _fake_rings(t) app = wsgi.loadapp(conf_file, global_conf={}) return app def test_gatekeeper_insertion_catch_errors_configured_at_start(self): # catch_errors is configured at start, gatekeeper is not configured, # so gatekeeper should be inserted just after catch_errors pipe = 'catch_errors healthcheck proxy-server' app = self._proxy_modify_wsgi_pipeline(pipe) self.assertEqual(self.pipeline_modules(app), [ 'swift.common.middleware.catch_errors', 'swift.common.middleware.gatekeeper', 'swift.common.middleware.dlo', 'swift.common.middleware.healthcheck', 'swift.proxy.server']) def test_gatekeeper_insertion_catch_errors_configured_not_at_start(self): # catch_errors is configured, gatekeeper is not configured, so # gatekeeper should be inserted at start of pipeline pipe = 'healthcheck catch_errors proxy-server' app = self._proxy_modify_wsgi_pipeline(pipe) self.assertEqual(self.pipeline_modules(app), [ 'swift.common.middleware.gatekeeper', 'swift.common.middleware.healthcheck', 'swift.common.middleware.catch_errors', 'swift.common.middleware.dlo', 'swift.proxy.server']) def test_catch_errors_gatekeeper_configured_not_at_start(self): # catch_errors is configured, gatekeeper is configured, so # no change should be made to pipeline pipe = 'healthcheck catch_errors gatekeeper proxy-server' app = self._proxy_modify_wsgi_pipeline(pipe) self.assertEqual(self.pipeline_modules(app), [ 'swift.common.middleware.healthcheck', 'swift.common.middleware.catch_errors', 'swift.common.middleware.gatekeeper', 'swift.common.middleware.dlo', 'swift.proxy.server']) if __name__ == '__main__': unittest.main()