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353 lines
15 KiB
Python
353 lines
15 KiB
Python
10 years ago
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# -*- coding: utf-8 -*-
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"""
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werkzeug.testsuite.wsgi
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~~~~~~~~~~~~~~~~~~~~~~~
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Tests the WSGI utilities.
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:copyright: (c) 2013 by Armin Ronacher.
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:license: BSD, see LICENSE for more details.
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"""
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import unittest
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from os import path
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from contextlib import closing
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from werkzeug.testsuite import WerkzeugTestCase, get_temporary_directory
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from werkzeug.wrappers import BaseResponse
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from werkzeug.exceptions import BadRequest, ClientDisconnected
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from werkzeug.test import Client, create_environ, run_wsgi_app
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from werkzeug import wsgi
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from werkzeug._compat import StringIO, BytesIO, NativeStringIO, to_native
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class WSGIUtilsTestCase(WerkzeugTestCase):
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def test_shareddatamiddleware_get_file_loader(self):
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app = wsgi.SharedDataMiddleware(None, {})
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assert callable(app.get_file_loader('foo'))
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def test_shared_data_middleware(self):
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def null_application(environ, start_response):
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start_response('404 NOT FOUND', [('Content-Type', 'text/plain')])
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yield b'NOT FOUND'
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test_dir = get_temporary_directory()
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with open(path.join(test_dir, to_native(u'äöü', 'utf-8')), 'w') as test_file:
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test_file.write(u'FOUND')
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app = wsgi.SharedDataMiddleware(null_application, {
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'/': path.join(path.dirname(__file__), 'res'),
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'/sources': path.join(path.dirname(__file__), 'res'),
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'/pkg': ('werkzeug.debug', 'shared'),
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'/foo': test_dir
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})
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for p in '/test.txt', '/sources/test.txt', '/foo/äöü':
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app_iter, status, headers = run_wsgi_app(app, create_environ(p))
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self.assert_equal(status, '200 OK')
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with closing(app_iter) as app_iter:
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data = b''.join(app_iter).strip()
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self.assert_equal(data, b'FOUND')
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app_iter, status, headers = run_wsgi_app(
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app, create_environ('/pkg/debugger.js'))
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with closing(app_iter) as app_iter:
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contents = b''.join(app_iter)
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self.assert_in(b'$(function() {', contents)
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app_iter, status, headers = run_wsgi_app(
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app, create_environ('/missing'))
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self.assert_equal(status, '404 NOT FOUND')
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self.assert_equal(b''.join(app_iter).strip(), b'NOT FOUND')
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def test_get_host(self):
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env = {'HTTP_X_FORWARDED_HOST': 'example.org',
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'SERVER_NAME': 'bullshit', 'HOST_NAME': 'ignore me dammit'}
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self.assert_equal(wsgi.get_host(env), 'example.org')
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self.assert_equal(
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wsgi.get_host(create_environ('/', 'http://example.org')),
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'example.org')
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def test_get_host_multiple_forwarded(self):
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env = {'HTTP_X_FORWARDED_HOST': 'example.com, example.org',
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'SERVER_NAME': 'bullshit', 'HOST_NAME': 'ignore me dammit'}
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self.assert_equal(wsgi.get_host(env), 'example.com')
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self.assert_equal(
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wsgi.get_host(create_environ('/', 'http://example.com')),
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'example.com')
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def test_get_host_validation(self):
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env = {'HTTP_X_FORWARDED_HOST': 'example.org',
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'SERVER_NAME': 'bullshit', 'HOST_NAME': 'ignore me dammit'}
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self.assert_equal(wsgi.get_host(env, trusted_hosts=['.example.org']),
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'example.org')
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self.assert_raises(BadRequest, wsgi.get_host, env,
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trusted_hosts=['example.com'])
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def test_responder(self):
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def foo(environ, start_response):
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return BaseResponse(b'Test')
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client = Client(wsgi.responder(foo), BaseResponse)
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response = client.get('/')
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self.assert_equal(response.status_code, 200)
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self.assert_equal(response.data, b'Test')
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def test_pop_path_info(self):
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original_env = {'SCRIPT_NAME': '/foo', 'PATH_INFO': '/a/b///c'}
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# regular path info popping
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def assert_tuple(script_name, path_info):
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self.assert_equal(env.get('SCRIPT_NAME'), script_name)
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self.assert_equal(env.get('PATH_INFO'), path_info)
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env = original_env.copy()
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pop = lambda: wsgi.pop_path_info(env)
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assert_tuple('/foo', '/a/b///c')
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self.assert_equal(pop(), 'a')
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assert_tuple('/foo/a', '/b///c')
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self.assert_equal(pop(), 'b')
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assert_tuple('/foo/a/b', '///c')
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self.assert_equal(pop(), 'c')
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assert_tuple('/foo/a/b///c', '')
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self.assert_is_none(pop())
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def test_peek_path_info(self):
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env = {
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'SCRIPT_NAME': '/foo',
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'PATH_INFO': '/aaa/b///c'
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}
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self.assert_equal(wsgi.peek_path_info(env), 'aaa')
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self.assert_equal(wsgi.peek_path_info(env), 'aaa')
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self.assert_equal(wsgi.peek_path_info(env, charset=None), b'aaa')
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self.assert_equal(wsgi.peek_path_info(env, charset=None), b'aaa')
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def test_path_info_and_script_name_fetching(self):
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env = create_environ(u'/\N{SNOWMAN}', u'http://example.com/\N{COMET}/')
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self.assert_equal(wsgi.get_path_info(env), u'/\N{SNOWMAN}')
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self.assert_equal(wsgi.get_path_info(env, charset=None), u'/\N{SNOWMAN}'.encode('utf-8'))
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self.assert_equal(wsgi.get_script_name(env), u'/\N{COMET}')
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self.assert_equal(wsgi.get_script_name(env, charset=None), u'/\N{COMET}'.encode('utf-8'))
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def test_query_string_fetching(self):
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env = create_environ(u'/?\N{SNOWMAN}=\N{COMET}')
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qs = wsgi.get_query_string(env)
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self.assert_strict_equal(qs, '%E2%98%83=%E2%98%84')
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def test_limited_stream(self):
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class RaisingLimitedStream(wsgi.LimitedStream):
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def on_exhausted(self):
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raise BadRequest('input stream exhausted')
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io = BytesIO(b'123456')
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stream = RaisingLimitedStream(io, 3)
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self.assert_strict_equal(stream.read(), b'123')
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self.assert_raises(BadRequest, stream.read)
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io = BytesIO(b'123456')
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stream = RaisingLimitedStream(io, 3)
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self.assert_strict_equal(stream.tell(), 0)
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self.assert_strict_equal(stream.read(1), b'1')
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self.assert_strict_equal(stream.tell(), 1)
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self.assert_strict_equal(stream.read(1), b'2')
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self.assert_strict_equal(stream.tell(), 2)
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self.assert_strict_equal(stream.read(1), b'3')
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self.assert_strict_equal(stream.tell(), 3)
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self.assert_raises(BadRequest, stream.read)
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io = BytesIO(b'123456\nabcdefg')
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stream = wsgi.LimitedStream(io, 9)
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self.assert_strict_equal(stream.readline(), b'123456\n')
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self.assert_strict_equal(stream.readline(), b'ab')
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io = BytesIO(b'123456\nabcdefg')
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stream = wsgi.LimitedStream(io, 9)
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self.assert_strict_equal(stream.readlines(), [b'123456\n', b'ab'])
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io = BytesIO(b'123456\nabcdefg')
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stream = wsgi.LimitedStream(io, 9)
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self.assert_strict_equal(stream.readlines(2), [b'12'])
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self.assert_strict_equal(stream.readlines(2), [b'34'])
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self.assert_strict_equal(stream.readlines(), [b'56\n', b'ab'])
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io = BytesIO(b'123456\nabcdefg')
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stream = wsgi.LimitedStream(io, 9)
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self.assert_strict_equal(stream.readline(100), b'123456\n')
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io = BytesIO(b'123456\nabcdefg')
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stream = wsgi.LimitedStream(io, 9)
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self.assert_strict_equal(stream.readlines(100), [b'123456\n', b'ab'])
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io = BytesIO(b'123456')
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stream = wsgi.LimitedStream(io, 3)
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self.assert_strict_equal(stream.read(1), b'1')
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self.assert_strict_equal(stream.read(1), b'2')
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self.assert_strict_equal(stream.read(), b'3')
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self.assert_strict_equal(stream.read(), b'')
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io = BytesIO(b'123456')
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stream = wsgi.LimitedStream(io, 3)
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self.assert_strict_equal(stream.read(-1), b'123')
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io = BytesIO(b'123456')
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stream = wsgi.LimitedStream(io, 0)
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self.assert_strict_equal(stream.read(-1), b'')
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io = StringIO(u'123456')
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stream = wsgi.LimitedStream(io, 0)
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self.assert_strict_equal(stream.read(-1), u'')
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io = StringIO(u'123\n456\n')
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stream = wsgi.LimitedStream(io, 8)
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self.assert_strict_equal(list(stream), [u'123\n', u'456\n'])
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def test_limited_stream_disconnection(self):
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io = BytesIO(b'A bit of content')
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# disconnect detection on out of bytes
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stream = wsgi.LimitedStream(io, 255)
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with self.assert_raises(ClientDisconnected):
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stream.read()
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# disconnect detection because file close
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io = BytesIO(b'x' * 255)
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io.close()
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stream = wsgi.LimitedStream(io, 255)
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with self.assert_raises(ClientDisconnected):
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stream.read()
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def test_path_info_extraction(self):
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x = wsgi.extract_path_info('http://example.com/app', '/app/hello')
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self.assert_equal(x, u'/hello')
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x = wsgi.extract_path_info('http://example.com/app',
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'https://example.com/app/hello')
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self.assert_equal(x, u'/hello')
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x = wsgi.extract_path_info('http://example.com/app/',
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'https://example.com/app/hello')
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self.assert_equal(x, u'/hello')
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x = wsgi.extract_path_info('http://example.com/app/',
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'https://example.com/app')
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self.assert_equal(x, u'/')
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x = wsgi.extract_path_info(u'http://☃.net/', u'/fööbär')
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self.assert_equal(x, u'/fööbär')
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x = wsgi.extract_path_info(u'http://☃.net/x', u'http://☃.net/x/fööbär')
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self.assert_equal(x, u'/fööbär')
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env = create_environ(u'/fööbär', u'http://☃.net/x/')
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x = wsgi.extract_path_info(env, u'http://☃.net/x/fööbär')
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self.assert_equal(x, u'/fööbär')
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x = wsgi.extract_path_info('http://example.com/app/',
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'https://example.com/a/hello')
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self.assert_is_none(x)
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x = wsgi.extract_path_info('http://example.com/app/',
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'https://example.com/app/hello',
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collapse_http_schemes=False)
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self.assert_is_none(x)
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def test_get_host_fallback(self):
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self.assert_equal(wsgi.get_host({
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'SERVER_NAME': 'foobar.example.com',
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'wsgi.url_scheme': 'http',
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'SERVER_PORT': '80'
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}), 'foobar.example.com')
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self.assert_equal(wsgi.get_host({
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'SERVER_NAME': 'foobar.example.com',
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'wsgi.url_scheme': 'http',
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'SERVER_PORT': '81'
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}), 'foobar.example.com:81')
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def test_get_current_url_unicode(self):
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env = create_environ()
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env['QUERY_STRING'] = 'foo=bar&baz=blah&meh=\xcf'
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rv = wsgi.get_current_url(env)
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self.assert_strict_equal(rv,
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u'http://localhost/?foo=bar&baz=blah&meh=\ufffd')
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def test_multi_part_line_breaks(self):
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data = 'abcdef\r\nghijkl\r\nmnopqrstuvwxyz\r\nABCDEFGHIJK'
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test_stream = NativeStringIO(data)
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lines = list(wsgi.make_line_iter(test_stream, limit=len(data),
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buffer_size=16))
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self.assert_equal(lines, ['abcdef\r\n', 'ghijkl\r\n',
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'mnopqrstuvwxyz\r\n', 'ABCDEFGHIJK'])
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data = 'abc\r\nThis line is broken by the buffer length.' \
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'\r\nFoo bar baz'
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test_stream = NativeStringIO(data)
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lines = list(wsgi.make_line_iter(test_stream, limit=len(data),
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buffer_size=24))
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self.assert_equal(lines, ['abc\r\n', 'This line is broken by the '
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'buffer length.\r\n', 'Foo bar baz'])
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def test_multi_part_line_breaks_bytes(self):
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data = b'abcdef\r\nghijkl\r\nmnopqrstuvwxyz\r\nABCDEFGHIJK'
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test_stream = BytesIO(data)
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lines = list(wsgi.make_line_iter(test_stream, limit=len(data),
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buffer_size=16))
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self.assert_equal(lines, [b'abcdef\r\n', b'ghijkl\r\n',
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b'mnopqrstuvwxyz\r\n', b'ABCDEFGHIJK'])
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data = b'abc\r\nThis line is broken by the buffer length.' \
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b'\r\nFoo bar baz'
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test_stream = BytesIO(data)
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lines = list(wsgi.make_line_iter(test_stream, limit=len(data),
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buffer_size=24))
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self.assert_equal(lines, [b'abc\r\n', b'This line is broken by the '
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b'buffer length.\r\n', b'Foo bar baz'])
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def test_multi_part_line_breaks_problematic(self):
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data = 'abc\rdef\r\nghi'
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for x in range(1, 10):
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test_stream = NativeStringIO(data)
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lines = list(wsgi.make_line_iter(test_stream, limit=len(data),
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buffer_size=4))
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self.assert_equal(lines, ['abc\r', 'def\r\n', 'ghi'])
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def test_iter_functions_support_iterators(self):
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data = ['abcdef\r\nghi', 'jkl\r\nmnopqrstuvwxyz\r', '\nABCDEFGHIJK']
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lines = list(wsgi.make_line_iter(data))
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self.assert_equal(lines, ['abcdef\r\n', 'ghijkl\r\n',
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|
'mnopqrstuvwxyz\r\n', 'ABCDEFGHIJK'])
|
||
|
|
|
||
|
|
def test_make_chunk_iter(self):
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|
|
data = [u'abcdefXghi', u'jklXmnopqrstuvwxyzX', u'ABCDEFGHIJK']
|
||
|
|
rv = list(wsgi.make_chunk_iter(data, 'X'))
|
||
|
|
self.assert_equal(rv, [u'abcdef', u'ghijkl', u'mnopqrstuvwxyz',
|
||
|
|
u'ABCDEFGHIJK'])
|
||
|
|
|
||
|
|
data = u'abcdefXghijklXmnopqrstuvwxyzXABCDEFGHIJK'
|
||
|
|
test_stream = StringIO(data)
|
||
|
|
rv = list(wsgi.make_chunk_iter(test_stream, 'X', limit=len(data),
|
||
|
|
buffer_size=4))
|
||
|
|
self.assert_equal(rv, [u'abcdef', u'ghijkl', u'mnopqrstuvwxyz',
|
||
|
|
u'ABCDEFGHIJK'])
|
||
|
|
|
||
|
|
def test_make_chunk_iter_bytes(self):
|
||
|
|
data = [b'abcdefXghi', b'jklXmnopqrstuvwxyzX', b'ABCDEFGHIJK']
|
||
|
|
rv = list(wsgi.make_chunk_iter(data, 'X'))
|
||
|
|
self.assert_equal(rv, [b'abcdef', b'ghijkl', b'mnopqrstuvwxyz',
|
||
|
|
b'ABCDEFGHIJK'])
|
||
|
|
|
||
|
|
data = b'abcdefXghijklXmnopqrstuvwxyzXABCDEFGHIJK'
|
||
|
|
test_stream = BytesIO(data)
|
||
|
|
rv = list(wsgi.make_chunk_iter(test_stream, 'X', limit=len(data),
|
||
|
|
buffer_size=4))
|
||
|
|
self.assert_equal(rv, [b'abcdef', b'ghijkl', b'mnopqrstuvwxyz',
|
||
|
|
b'ABCDEFGHIJK'])
|
||
|
|
|
||
|
|
def test_lines_longer_buffer_size(self):
|
||
|
|
data = '1234567890\n1234567890\n'
|
||
|
|
for bufsize in range(1, 15):
|
||
|
|
lines = list(wsgi.make_line_iter(NativeStringIO(data), limit=len(data),
|
||
|
|
buffer_size=4))
|
||
|
|
self.assert_equal(lines, ['1234567890\n', '1234567890\n'])
|
||
|
|
|
||
|
|
|
||
|
|
def suite():
|
||
|
|
suite = unittest.TestSuite()
|
||
|
|
suite.addTest(unittest.makeSuite(WSGIUtilsTestCase))
|
||
|
|
return suite
|