import cgi import collections import errno import os import signal import socket import sys import traceback import unittest import eventlet from eventlet import debug from eventlet import event from eventlet.green import socket as greensocket from eventlet.green import ssl from eventlet.green import subprocess from eventlet import greenio from eventlet import greenthread from eventlet import support from eventlet.support import bytes_to_str, capture_stderr, six from eventlet import tpool from eventlet import wsgi import tests certificate_file = os.path.join(os.path.dirname(__file__), 'test_server.crt') private_key_file = os.path.join(os.path.dirname(__file__), 'test_server.key') HttpReadResult = collections.namedtuple( 'HttpReadResult', 'status headers_lower body headers_original') def hello_world(env, start_response): if env['PATH_INFO'] == 'notexist': start_response('404 Not Found', [('Content-type', 'text/plain')]) return [b"not found"] start_response('200 OK', [('Content-type', 'text/plain')]) return [b"hello world"] def chunked_app(env, start_response): start_response('200 OK', [('Content-type', 'text/plain')]) yield b"this" yield b"is" yield b"chunked" def chunked_fail_app(environ, start_response): """http://rhodesmill.org/brandon/2013/chunked-wsgi/ """ headers = [('Content-Type', 'text/plain')] start_response('200 OK', headers) # We start streaming data just fine. yield b"The dwarves of yore made mighty spells," yield b"While hammers fell like ringing bells" # Then the back-end fails! try: 1 / 0 except Exception: start_response('500 Error', headers, sys.exc_info()) return # So rest of the response data is not available. yield b"In places deep, where dark things sleep," yield b"In hollow halls beneath the fells." def big_chunks(env, start_response): start_response('200 OK', [('Content-type', 'text/plain')]) line = b'a' * 8192 for x in range(10): yield line def use_write(env, start_response): if env['PATH_INFO'] == '/a': write = start_response('200 OK', [('Content-type', 'text/plain'), ('Content-Length', '5')]) write(b'abcde') if env['PATH_INFO'] == '/b': write = start_response('200 OK', [('Content-type', 'text/plain')]) write(b'abcde') return [] def chunked_post(env, start_response): start_response('200 OK', [('Content-type', 'text/plain')]) if env['PATH_INFO'] == '/a': return [env['wsgi.input'].read()] elif env['PATH_INFO'] == '/b': return [x for x in iter(lambda: env['wsgi.input'].read(4096), b'')] elif env['PATH_INFO'] == '/c': return [x for x in iter(lambda: env['wsgi.input'].read(1), b'')] def already_handled(env, start_response): start_response('200 OK', [('Content-type', 'text/plain')]) return wsgi.ALREADY_HANDLED class Site(object): def __init__(self): self.application = hello_world def __call__(self, env, start_response): return self.application(env, start_response) class IterableApp(object): def __init__(self, send_start_response=False, return_val=wsgi.ALREADY_HANDLED): self.send_start_response = send_start_response self.return_val = return_val self.env = {} def __call__(self, env, start_response): self.env = env if self.send_start_response: start_response('200 OK', [('Content-type', 'text/plain')]) return self.return_val class IterableSite(Site): def __call__(self, env, start_response): it = self.application(env, start_response) for i in it: yield i CONTENT_LENGTH = 'content-length' """ HTTP/1.1 200 OK Date: foo Content-length: 11 hello world """ def recvall(socket_): result = b'' while True: chunk = socket_.recv() result += chunk if chunk == b'': break return result class ConnectionClosed(Exception): pass def send_expect_close(sock, buf): # Some tests will induce behavior that causes the remote end to # close the connection before all of the data has been written. # With small kernel buffer sizes, this can cause an EPIPE error. # Since the test expects an early close, this can be ignored. try: sock.sendall(buf) except socket.error as exc: if support.get_errno(exc) != errno.EPIPE: raise def read_http(sock): fd = sock.makefile('rb') try: response_line = bytes_to_str(fd.readline().rstrip(b'\r\n')) except socket.error as exc: # TODO find out whether 54 is ok here or not, I see it when running tests # on Python 3 if support.get_errno(exc) in (10053, 54): raise ConnectionClosed raise if not response_line: raise ConnectionClosed(response_line) header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line) headers_original = {} headers_lower = {} for x in header_lines: x = x.strip() if not x: continue key, value = bytes_to_str(x).split(':', 1) key = key.rstrip() value = value.lstrip() key_lower = key.lower() # FIXME: Duplicate headers are allowed as per HTTP RFC standard, # the client and/or intermediate proxies are supposed to treat them # as a single header with values concatenated using space (' ') delimiter. assert key_lower not in headers_lower, "header duplicated: {0}".format(key) headers_original[key] = value headers_lower[key_lower] = value content_length_str = headers_lower.get(CONTENT_LENGTH.lower(), '') if content_length_str: num = int(content_length_str) body = fd.read(num) else: # read until EOF body = fd.read() result = HttpReadResult( status=response_line, headers_lower=headers_lower, body=body, headers_original=headers_original) return result class _TestBase(tests.LimitedTestCase): def setUp(self): super(_TestBase, self).setUp() self.logfile = six.StringIO() self.site = Site() self.killer = None self.set_site() self.spawn_server() def tearDown(self): greenthread.kill(self.killer) eventlet.sleep(0) super(_TestBase, self).tearDown() def spawn_server(self, **kwargs): """Spawns a new wsgi server with the given arguments using :meth:`spawn_thread`. Sets self.port to the port of the server """ new_kwargs = dict(max_size=128, log=self.logfile, site=self.site) new_kwargs.update(kwargs) if 'sock' not in new_kwargs: new_kwargs['sock'] = eventlet.listen(('localhost', 0)) self.port = new_kwargs['sock'].getsockname()[1] self.spawn_thread(wsgi.server, **new_kwargs) def spawn_thread(self, target, **kwargs): """Spawns a new greenthread using specified target and arguments. Kills any previously-running server and sets self.killer to the greenthread running the target. """ eventlet.sleep(0) # give previous server a chance to start if self.killer: greenthread.kill(self.killer) self.killer = eventlet.spawn_n(target, **kwargs) def set_site(self): raise NotImplementedError class TestHttpd(_TestBase): def set_site(self): self.site = Site() def test_001_server(self): sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') fd.flush() result = fd.read() fd.close() # The server responds with the maximum version it supports assert result.startswith(b'HTTP'), result assert result.endswith(b'hello world'), result def test_002_keepalive(self): sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() read_http(sock) fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() read_http(sock) fd.close() sock.close() def test_003_passing_non_int_to_read(self): # This should go in greenio_test sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() cancel = eventlet.Timeout(1, RuntimeError) self.assertRaises(TypeError, fd.read, "This shouldn't work") cancel.cancel() fd.close() def test_004_close_keepalive(self): sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() read_http(sock) fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() read_http(sock) fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() self.assertRaises(ConnectionClosed, read_http, sock) fd.close() @tests.skipped def test_005_run_apachebench(self): url = 'http://localhost:12346/' # ab is apachebench subprocess.call( [tests.find_command('ab'), '-c', '64', '-n', '1024', '-k', url], stdout=subprocess.PIPE) def test_006_reject_long_urls(self): sock = eventlet.connect( ('localhost', self.port)) path_parts = [] for ii in range(3000): path_parts.append('path') path = '/'.join(path_parts) request = 'GET /%s HTTP/1.0\r\nHost: localhost\r\n\r\n' % path send_expect_close(sock, request.encode()) fd = sock.makefile('rb') result = fd.readline() if result: # windows closes the socket before the data is flushed, # so we never get anything back status = result.split(b' ')[1] self.assertEqual(status, b'414') fd.close() def test_007_get_arg(self): # define a new handler that does a get_arg as well as a read_body def new_app(env, start_response): body = bytes_to_str(env['wsgi.input'].read()) a = cgi.parse_qs(body).get('a', [1])[0] start_response('200 OK', [('Content-type', 'text/plain')]) return [six.b('a is %s, body is %s' % (a, body))] self.site.application = new_app sock = eventlet.connect( ('localhost', self.port)) request = '\r\n'.join(( 'POST / HTTP/1.0', 'Host: localhost', 'Content-Length: 3', '', 'a=a')) fd = sock.makefile('wb') fd.write(request.encode()) fd.flush() # send some junk after the actual request fd.write(b'01234567890123456789') result = read_http(sock) self.assertEqual(result.body, b'a is a, body is a=a') fd.close() def test_008_correctresponse(self): sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() result_200 = read_http(sock) fd.write(b'GET /notexist HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() read_http(sock) fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() result_test = read_http(sock) self.assertEqual(result_200.status, result_test.status) fd.close() sock.close() def test_009_chunked_response(self): self.site.application = chunked_app sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() assert b'Transfer-Encoding: chunked' in fd.read() def test_010_no_chunked_http_1_0(self): self.site.application = chunked_app sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() assert b'Transfer-Encoding: chunked' not in fd.read() def test_011_multiple_chunks(self): self.site.application = big_chunks sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() headers = b'' while True: line = fd.readline() if line == b'\r\n': break else: headers += line assert b'Transfer-Encoding: chunked' in headers chunks = 0 chunklen = int(fd.readline(), 16) while chunklen: chunks += 1 fd.read(chunklen) fd.readline() # CRLF chunklen = int(fd.readline(), 16) assert chunks > 1 response = fd.read() # Require a CRLF to close the message body self.assertEqual(response, b'\r\n') @tests.skip_if_no_ssl def test_012_ssl_server(self): def wsgi_app(environ, start_response): start_response('200 OK', {}) return [environ['wsgi.input'].read()] certificate_file = os.path.join(os.path.dirname(__file__), 'test_server.crt') private_key_file = os.path.join(os.path.dirname(__file__), 'test_server.key') server_sock = eventlet.wrap_ssl(eventlet.listen(('localhost', 0)), certfile=certificate_file, keyfile=private_key_file, server_side=True) self.spawn_server(sock=server_sock, site=wsgi_app) sock = eventlet.connect(('localhost', self.port)) sock = eventlet.wrap_ssl(sock) sock.write( b'POST /foo HTTP/1.1\r\nHost: localhost\r\n' b'Connection: close\r\nContent-length:3\r\n\r\nabc') result = recvall(sock) assert result.endswith(b'abc') @tests.skip_if_no_ssl def test_013_empty_return(self): def wsgi_app(environ, start_response): start_response("200 OK", []) return [b""] certificate_file = os.path.join(os.path.dirname(__file__), 'test_server.crt') private_key_file = os.path.join(os.path.dirname(__file__), 'test_server.key') server_sock = eventlet.wrap_ssl(eventlet.listen(('localhost', 0)), certfile=certificate_file, keyfile=private_key_file, server_side=True) self.spawn_server(sock=server_sock, site=wsgi_app) sock = eventlet.connect(('localhost', server_sock.getsockname()[1])) sock = eventlet.wrap_ssl(sock) sock.write(b'GET /foo HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result = recvall(sock) assert result[-4:] == b'\r\n\r\n' def test_014_chunked_post(self): self.site.application = chunked_post sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write('PUT /a HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n' 'Transfer-Encoding: chunked\r\n\r\n' '2\r\noh\r\n4\r\n hai\r\n0\r\n\r\n'.encode()) fd.flush() while True: if fd.readline() == b'\r\n': break response = fd.read() assert response == b'oh hai', 'invalid response %s' % response sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write('PUT /b HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n' 'Transfer-Encoding: chunked\r\n\r\n' '2\r\noh\r\n4\r\n hai\r\n0\r\n\r\n'.encode()) fd.flush() while True: if fd.readline() == b'\r\n': break response = fd.read() assert response == b'oh hai', 'invalid response %s' % response sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write('PUT /c HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n' 'Transfer-Encoding: chunked\r\n\r\n' '2\r\noh\r\n4\r\n hai\r\n0\r\n\r\n'.encode()) fd.flush() while True: if fd.readline() == b'\r\n': break response = fd.read(8192) assert response == b'oh hai', 'invalid response %s' % response def test_015_write(self): self.site.application = use_write sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET /a HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() result1 = read_http(sock) assert 'content-length' in result1.headers_lower sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET /b HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() result2 = read_http(sock) assert 'transfer-encoding' in result2.headers_lower assert result2.headers_lower['transfer-encoding'] == 'chunked' def test_016_repeated_content_length(self): """content-length header was being doubled up if it was set in start_response and could also be inferred from the iterator """ def wsgi_app(environ, start_response): start_response('200 OK', [('Content-Length', '7')]) return [b'testing'] self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET /a HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line) self.assertEqual(1, len( [l for l in header_lines if l.lower().startswith(b'content-length')])) @tests.skip_if_no_ssl def test_017_ssl_zeroreturnerror(self): def server(sock, site, log): try: serv = wsgi.Server(sock, sock.getsockname(), site, log) client_socket = sock.accept() serv.process_request(client_socket) return True except Exception: traceback.print_exc() return False def wsgi_app(environ, start_response): start_response('200 OK', []) return [environ['wsgi.input'].read()] certificate_file = os.path.join(os.path.dirname(__file__), 'test_server.crt') private_key_file = os.path.join(os.path.dirname(__file__), 'test_server.key') sock = eventlet.wrap_ssl( eventlet.listen(('localhost', 0)), certfile=certificate_file, keyfile=private_key_file, server_side=True) server_coro = eventlet.spawn(server, sock, wsgi_app, self.logfile) client = eventlet.connect(('localhost', sock.getsockname()[1])) client = eventlet.wrap_ssl(client) client.write(b'X') # non-empty payload so that SSL handshake occurs greenio.shutdown_safe(client) client.close() success = server_coro.wait() assert success def test_018_http_10_keepalive(self): # verify that if an http/1.0 client sends connection: keep-alive # that we don't close the connection sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n') fd.flush() result1 = read_http(sock) assert 'connection' in result1.headers_lower self.assertEqual('keep-alive', result1.headers_lower['connection']) # repeat request to verify connection is actually still open fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n') fd.flush() result2 = read_http(sock) assert 'connection' in result2.headers_lower self.assertEqual('keep-alive', result2.headers_lower['connection']) sock.close() def test_019_fieldstorage_compat(self): def use_fieldstorage(environ, start_response): cgi.FieldStorage(fp=environ['wsgi.input'], environ=environ) start_response('200 OK', [('Content-type', 'text/plain')]) return [b'hello!'] self.site.application = use_fieldstorage sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write('POST / HTTP/1.1\r\n' 'Host: localhost\r\n' 'Connection: close\r\n' 'Transfer-Encoding: chunked\r\n\r\n' '2\r\noh\r\n' '4\r\n hai\r\n0\r\n\r\n'.encode()) fd.flush() assert b'hello!' in fd.read() def test_020_x_forwarded_for(self): request_bytes = ( b'GET / HTTP/1.1\r\nHost: localhost\r\n' + b'X-Forwarded-For: 1.2.3.4, 5.6.7.8\r\n\r\n' ) sock = eventlet.connect(('localhost', self.port)) sock.sendall(request_bytes) sock.recv(1024) sock.close() assert '1.2.3.4,5.6.7.8,127.0.0.1' in self.logfile.getvalue() # turning off the option should work too self.logfile = six.StringIO() self.spawn_server(log_x_forwarded_for=False) sock = eventlet.connect(('localhost', self.port)) sock.sendall(request_bytes) sock.recv(1024) sock.close() assert '1.2.3.4' not in self.logfile.getvalue() assert '5.6.7.8' not in self.logfile.getvalue() assert '127.0.0.1' in self.logfile.getvalue() def test_socket_remains_open(self): greenthread.kill(self.killer) server_sock = eventlet.listen(('localhost', 0)) server_sock_2 = server_sock.dup() self.spawn_server(sock=server_sock_2) # do a single req/response to verify it's up sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') fd.flush() result = fd.read(1024) fd.close() assert result.startswith(b'HTTP'), result assert result.endswith(b'hello world'), result # shut down the server and verify the server_socket fd is still open, # but the actual socketobject passed in to wsgi.server is closed greenthread.kill(self.killer) eventlet.sleep(0) # make the kill go through try: server_sock_2.accept() # shouldn't be able to use this one anymore except socket.error as exc: self.assertEqual(support.get_errno(exc), errno.EBADF) self.spawn_server(sock=server_sock) sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') fd.flush() result = fd.read(1024) fd.close() assert result.startswith(b'HTTP'), result assert result.endswith(b'hello world'), result def test_021_environ_clobbering(self): def clobberin_time(environ, start_response): for environ_var in [ 'wsgi.version', 'wsgi.url_scheme', 'wsgi.input', 'wsgi.errors', 'wsgi.multithread', 'wsgi.multiprocess', 'wsgi.run_once', 'REQUEST_METHOD', 'SCRIPT_NAME', 'RAW_PATH_INFO', 'PATH_INFO', 'QUERY_STRING', 'CONTENT_TYPE', 'CONTENT_LENGTH', 'SERVER_NAME', 'SERVER_PORT', 'SERVER_PROTOCOL']: environ[environ_var] = None start_response('200 OK', [('Content-type', 'text/plain')]) return [] self.site.application = clobberin_time sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write('GET / HTTP/1.1\r\n' 'Host: localhost\r\n' 'Connection: close\r\n' '\r\n\r\n'.encode()) fd.flush() assert b'200 OK' in fd.read() def test_022_custom_pool(self): # just test that it accepts the parameter for now # TODO(waitall): test that it uses the pool and that you can waitall() to # ensure that all clients finished p = eventlet.GreenPool(5) self.spawn_server(custom_pool=p) # this stuff is copied from test_001_server, could be better factored sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') fd.flush() result = fd.read() fd.close() assert result.startswith(b'HTTP'), result assert result.endswith(b'hello world'), result def test_023_bad_content_length(self): sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.0\r\nHost: localhost\r\nContent-length: argh\r\n\r\n') fd.flush() result = fd.read() fd.close() assert result.startswith(b'HTTP'), result assert b'400 Bad Request' in result, result assert b'500' not in result, result def test_024_expect_100_continue(self): def wsgi_app(environ, start_response): if int(environ['CONTENT_LENGTH']) > 1024: start_response('417 Expectation Failed', [('Content-Length', '7')]) return [b'failure'] else: text = environ['wsgi.input'].read() start_response('200 OK', [('Content-Length', str(len(text)))]) return [text] self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'PUT / HTTP/1.1\r\nHost: localhost\r\nContent-length: 1025\r\n' b'Expect: 100-continue\r\n\r\n') fd.flush() result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 417 Expectation Failed') self.assertEqual(result.body, b'failure') fd.write( b'PUT / HTTP/1.1\r\nHost: localhost\r\nContent-length: 7\r\n' b'Expect: 100-continue\r\n\r\ntesting') fd.flush() header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line) assert header_lines[0].startswith(b'HTTP/1.1 100 Continue') header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line) assert header_lines[0].startswith(b'HTTP/1.1 200 OK') assert fd.read(7) == b'testing' fd.close() sock.close() def test_024a_expect_100_continue_with_headers(self): def wsgi_app(environ, start_response): if int(environ['CONTENT_LENGTH']) > 1024: start_response('417 Expectation Failed', [('Content-Length', '7')]) return [b'failure'] else: environ['wsgi.input'].set_hundred_continue_response_headers( [('Hundred-Continue-Header-1', 'H1'), ('Hundred-Continue-Header-2', 'H2'), ('Hundred-Continue-Header-k', 'Hk')]) text = environ['wsgi.input'].read() start_response('200 OK', [('Content-Length', str(len(text)))]) return [text] self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'PUT / HTTP/1.1\r\nHost: localhost\r\nContent-length: 1025\r\n' b'Expect: 100-continue\r\n\r\n') fd.flush() result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 417 Expectation Failed') self.assertEqual(result.body, b'failure') fd.write( b'PUT / HTTP/1.1\r\nHost: localhost\r\nContent-length: 7\r\n' b'Expect: 100-continue\r\n\r\ntesting') fd.flush() header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 100 Continue') headers = dict((k, v) for k, v in (h.split(b': ', 1) for h in header_lines[1:])) assert b'Hundred-Continue-Header-1' in headers assert b'Hundred-Continue-Header-2' in headers assert b'Hundred-Continue-Header-K' in headers self.assertEqual(b'H1', headers[b'Hundred-Continue-Header-1']) self.assertEqual(b'H2', headers[b'Hundred-Continue-Header-2']) self.assertEqual(b'Hk', headers[b'Hundred-Continue-Header-K']) header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line) assert header_lines[0].startswith(b'HTTP/1.1 200 OK') self.assertEqual(fd.read(7), b'testing') fd.close() sock.close() def test_024b_expect_100_continue_with_headers_multiple_chunked(self): def wsgi_app(environ, start_response): environ['wsgi.input'].set_hundred_continue_response_headers( [('Hundred-Continue-Header-1', 'H1'), ('Hundred-Continue-Header-2', 'H2')]) text = environ['wsgi.input'].read() environ['wsgi.input'].set_hundred_continue_response_headers( [('Hundred-Continue-Header-3', 'H3')]) environ['wsgi.input'].send_hundred_continue_response() text += environ['wsgi.input'].read() start_response('200 OK', [('Content-Length', str(len(text)))]) return [text] self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'PUT /a HTTP/1.1\r\n' b'Host: localhost\r\nConnection: close\r\n' b'Transfer-Encoding: chunked\r\n' b'Expect: 100-continue\r\n\r\n') fd.flush() # Expect 1st 100-continue response header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 100 Continue') headers = dict((k, v) for k, v in (h.split(b': ', 1) for h in header_lines[1:])) assert b'Hundred-Continue-Header-1' in headers assert b'Hundred-Continue-Header-2' in headers self.assertEqual(b'H1', headers[b'Hundred-Continue-Header-1']) self.assertEqual(b'H2', headers[b'Hundred-Continue-Header-2']) # Send message 1 fd.write(b'5\r\nfirst\r\n8\r\n message\r\n0\r\n\r\n') fd.flush() # Expect a 2nd 100-continue response header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 100 Continue') headers = dict((k, v) for k, v in (h.split(b': ', 1) for h in header_lines[1:])) assert b'Hundred-Continue-Header-3' in headers self.assertEqual(b'H3', headers[b'Hundred-Continue-Header-3']) # Send message 2 fd.write(b'8\r\n, second\r\n8\r\n message\r\n0\r\n\r\n') fd.flush() # Expect final 200-OK header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 200 OK') self.assertEqual(fd.read(29), b'first message, second message') fd.close() sock.close() def test_024c_expect_100_continue_with_headers_multiple_nonchunked(self): def wsgi_app(environ, start_response): environ['wsgi.input'].set_hundred_continue_response_headers( [('Hundred-Continue-Header-1', 'H1'), ('Hundred-Continue-Header-2', 'H2')]) text = environ['wsgi.input'].read(13) environ['wsgi.input'].set_hundred_continue_response_headers( [('Hundred-Continue-Header-3', 'H3')]) environ['wsgi.input'].send_hundred_continue_response() text += environ['wsgi.input'].read(16) start_response('200 OK', [('Content-Length', str(len(text)))]) return [text] self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'PUT /a HTTP/1.1\r\n' b'Host: localhost\r\nConnection: close\r\n' b'Content-Length: 29\r\n' b'Expect: 100-continue\r\n\r\n') fd.flush() # Expect 1st 100-continue response header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 100 Continue') headers = dict((k, v) for k, v in (h.split(b': ', 1) for h in header_lines[1:])) assert b'Hundred-Continue-Header-1' in headers assert b'Hundred-Continue-Header-2' in headers self.assertEqual(b'H1', headers[b'Hundred-Continue-Header-1']) self.assertEqual(b'H2', headers[b'Hundred-Continue-Header-2']) # Send message 1 fd.write(b'first message') fd.flush() # Expect a 2nd 100-continue response header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 100 Continue') headers = dict((k, v) for k, v in (h.split(b': ', 1) for h in header_lines[1:])) assert b'Hundred-Continue-Header-3' in headers self.assertEqual(b'H3', headers[b'Hundred-Continue-Header-3']) # Send message 2 fd.write(b', second message\r\n') fd.flush() # Expect final 200-OK header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) assert header_lines[0].startswith(b'HTTP/1.1 200 OK') self.assertEqual(fd.read(29), b'first message, second message') fd.close() sock.close() def test_025_accept_errors(self): debug.hub_exceptions(True) listener = greensocket.socket() listener.bind(('localhost', 0)) # NOT calling listen, to trigger the error with capture_stderr() as log: self.spawn_server(sock=listener) eventlet.sleep(0) # need to enter server loop try: eventlet.connect(('localhost', self.port)) self.fail("Didn't expect to connect") except socket.error as exc: self.assertEqual(support.get_errno(exc), errno.ECONNREFUSED) log_content = log.getvalue() assert 'Invalid argument' in log_content, log_content debug.hub_exceptions(False) def test_026_log_format(self): self.spawn_server(log_format="HI %(request_line)s HI") sock = eventlet.connect(('localhost', self.port)) sock.sendall(b'GET /yo! HTTP/1.1\r\nHost: localhost\r\n\r\n') sock.recv(1024) sock.close() assert '\nHI GET /yo! HTTP/1.1 HI\n' in self.logfile.getvalue(), self.logfile.getvalue() def test_close_chunked_with_1_0_client(self): # verify that if we return a generator from our app # and we're not speaking with a 1.1 client, that we # close the connection self.site.application = chunked_app sock = eventlet.connect(('localhost', self.port)) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n') result = read_http(sock) self.assertEqual(result.headers_lower['connection'], 'close') self.assertNotEqual(result.headers_lower.get('transfer-encoding'), 'chunked') self.assertEqual(result.body, b"thisischunked") def test_minimum_chunk_size_parameter_leaves_httpprotocol_class_member_intact(self): start_size = wsgi.HttpProtocol.minimum_chunk_size self.spawn_server(minimum_chunk_size=start_size * 2) sock = eventlet.connect(('localhost', self.port)) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') read_http(sock) self.assertEqual(wsgi.HttpProtocol.minimum_chunk_size, start_size) sock.close() def test_error_in_chunked_closes_connection(self): # From http://rhodesmill.org/brandon/2013/chunked-wsgi/ self.spawn_server(minimum_chunk_size=1) self.site.application = chunked_fail_app sock = eventlet.connect(('localhost', self.port)) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 200 OK') self.assertEqual(result.headers_lower.get('transfer-encoding'), 'chunked') expected_body = ( b'27\r\nThe dwarves of yore made mighty spells,\r\n' b'25\r\nWhile hammers fell like ringing bells\r\n') self.assertEqual(result.body, expected_body) # verify that socket is closed by server self.assertEqual(sock.recv(1), b'') def test_026_http_10_nokeepalive(self): # verify that if an http/1.0 client sends connection: keep-alive # and the server doesn't accept keep-alives, we close the connection self.spawn_server(keepalive=False) sock = eventlet.connect( ('localhost', self.port)) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n') result = read_http(sock) self.assertEqual(result.headers_lower['connection'], 'close') def test_027_keepalive_chunked(self): self.site.application = chunked_post sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('wb') common_suffix = ( b'Host: localhost\r\nTransfer-Encoding: chunked\r\n\r\n' + b'10\r\n0123456789abcdef\r\n0\r\n\r\n') fd.write(b'PUT /a HTTP/1.1\r\n' + common_suffix) fd.flush() read_http(sock) fd.write(b'PUT /b HTTP/1.1\r\n' + common_suffix) fd.flush() read_http(sock) fd.write(b'PUT /c HTTP/1.1\r\n' + common_suffix) fd.flush() read_http(sock) fd.write(b'PUT /a HTTP/1.1\r\n' + common_suffix) fd.flush() read_http(sock) sock.close() @tests.skip_if_no_ssl def test_028_ssl_handshake_errors(self): errored = [False] def server(sock): try: wsgi.server(sock=sock, site=hello_world, log=self.logfile) errored[0] = 'SSL handshake error caused wsgi.server to exit.' except greenthread.greenlet.GreenletExit: pass except Exception as e: errored[0] = 'SSL handshake error raised exception %s.' % e raise for data in ('', 'GET /non-ssl-request HTTP/1.0\r\n\r\n'): srv_sock = eventlet.wrap_ssl( eventlet.listen(('localhost', 0)), certfile=certificate_file, keyfile=private_key_file, server_side=True) port = srv_sock.getsockname()[1] g = eventlet.spawn_n(server, srv_sock) client = eventlet.connect(('localhost', port)) if data: # send non-ssl request client.sendall(data.encode()) else: # close sock prematurely client.close() eventlet.sleep(0) # let context switch back to server assert not errored[0], errored[0] # make another request to ensure the server's still alive try: client = ssl.wrap_socket(eventlet.connect(('localhost', port))) client.write(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') result = recvall(client) assert result.startswith(b'HTTP'), result assert result.endswith(b'hello world') except ImportError: pass # TODO(openssl): should test with OpenSSL greenthread.kill(g) def test_029_posthooks(self): posthook1_count = [0] posthook2_count = [0] def posthook1(env, value, multiplier=1): self.assertEqual(env['local.test'], 'test_029_posthooks') posthook1_count[0] += value * multiplier def posthook2(env, value, divisor=1): self.assertEqual(env['local.test'], 'test_029_posthooks') posthook2_count[0] += value / divisor def one_posthook_app(env, start_response): env['local.test'] = 'test_029_posthooks' if 'eventlet.posthooks' not in env: start_response('500 eventlet.posthooks not supported', [('Content-Type', 'text/plain')]) else: env['eventlet.posthooks'].append( (posthook1, (2,), {'multiplier': 3})) start_response('200 OK', [('Content-Type', 'text/plain')]) yield b'' self.site.application = one_posthook_app sock = eventlet.connect(('localhost', self.port)) fp = sock.makefile('rwb') fp.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fp.flush() self.assertEqual(fp.readline(), b'HTTP/1.1 200 OK\r\n') fp.close() sock.close() self.assertEqual(posthook1_count[0], 6) self.assertEqual(posthook2_count[0], 0) def two_posthook_app(env, start_response): env['local.test'] = 'test_029_posthooks' if 'eventlet.posthooks' not in env: start_response('500 eventlet.posthooks not supported', [('Content-Type', 'text/plain')]) else: env['eventlet.posthooks'].append( (posthook1, (4,), {'multiplier': 5})) env['eventlet.posthooks'].append( (posthook2, (100,), {'divisor': 4})) start_response('200 OK', [('Content-Type', 'text/plain')]) yield b'' self.site.application = two_posthook_app sock = eventlet.connect(('localhost', self.port)) fp = sock.makefile('rwb') fp.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fp.flush() self.assertEqual(fp.readline(), b'HTTP/1.1 200 OK\r\n') fp.close() sock.close() self.assertEqual(posthook1_count[0], 26) self.assertEqual(posthook2_count[0], 25) def test_030_reject_long_header_lines(self): sock = eventlet.connect(('localhost', self.port)) request = 'GET / HTTP/1.0\r\nHost: localhost\r\nLong: %s\r\n\r\n' % \ ('a' * 10000) send_expect_close(sock, request.encode()) result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.0 400 Header Line Too Long') def test_031_reject_large_headers(self): sock = eventlet.connect(('localhost', self.port)) headers = ('Name: %s\r\n' % ('a' * 7000,)) * 20 request = 'GET / HTTP/1.0\r\nHost: localhost\r\n%s\r\n\r\n' % headers send_expect_close(sock, request.encode()) result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.0 400 Headers Too Large') def test_032_wsgi_input_as_iterable(self): # https://bitbucket.org/eventlet/eventlet/issue/150 # env['wsgi.input'] returns a single byte at a time # when used as an iterator g = [0] def echo_by_iterating(env, start_response): start_response('200 OK', [('Content-type', 'text/plain')]) for chunk in env['wsgi.input']: g[0] += 1 yield chunk self.site.application = echo_by_iterating upload_data = b'123456789abcdef' * 100 request = ( 'POST / HTTP/1.0\r\n' 'Host: localhost\r\n' 'Content-Length: %i\r\n\r\n%s' ) % (len(upload_data), bytes_to_str(upload_data)) sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(request.encode()) fd.flush() result = read_http(sock) self.assertEqual(result.body, upload_data) fd.close() self.assertEqual(g[0], 1) def test_zero_length_chunked_response(self): def zero_chunked_app(env, start_response): start_response('200 OK', [('Content-type', 'text/plain')]) yield b"" self.site.application = zero_chunked_app sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() response = fd.read().split(b'\r\n') headers = [] while True: h = response.pop(0) headers.append(h) if h == b'': break assert b'Transfer-Encoding: chunked' in b''.join(headers), headers # should only be one chunk of zero size with two blank lines # (one terminates the chunk, one terminates the body) self.assertEqual(response, [b'0', b'', b'']) def test_configurable_url_length_limit(self): self.spawn_server(url_length_limit=20000) sock = eventlet.connect( ('localhost', self.port)) path = 'x' * 15000 request = 'GET /%s HTTP/1.0\r\nHost: localhost\r\n\r\n' % path fd = sock.makefile('rwb') fd.write(request.encode()) fd.flush() result = fd.readline() if result: # windows closes the socket before the data is flushed, # so we never get anything back status = result.split(b' ')[1] self.assertEqual(status, b'200') fd.close() def test_aborted_chunked_post(self): read_content = event.Event() blew_up = [False] def chunk_reader(env, start_response): try: content = env['wsgi.input'].read(1024) except IOError: blew_up[0] = True content = b'ok' read_content.send(content) start_response('200 OK', [('Content-Type', 'text/plain')]) return [content] self.site.application = chunk_reader expected_body = 'a bunch of stuff' data = "\r\n".join(['PUT /somefile HTTP/1.0', 'Transfer-Encoding: chunked', '', 'def', expected_body]) # start PUT-ing some chunked data but close prematurely sock = eventlet.connect(('127.0.0.1', self.port)) sock.sendall(data.encode()) sock.close() # the test passes if we successfully get here, and read all the data # in spite of the early close self.assertEqual(read_content.wait(), b'ok') assert blew_up[0] def test_exceptions_close_connection(self): def wsgi_app(environ, start_response): raise RuntimeError("intentional error") self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 500 Internal Server Error') self.assertEqual(result.headers_lower['connection'], 'close') assert 'transfer-encoding' not in result.headers_lower def test_unicode_raises_error(self): def wsgi_app(environ, start_response): start_response("200 OK", []) yield u"oh hai" yield u"non-encodable unicode: \u0230" self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 500 Internal Server Error') self.assertEqual(result.headers_lower['connection'], 'close') assert b'unicode' in result.body def test_path_info_decoding(self): def wsgi_app(environ, start_response): start_response("200 OK", []) yield six.b("decoded: %s" % environ['PATH_INFO']) yield six.b("raw: %s" % environ['RAW_PATH_INFO']) self.site.application = wsgi_app sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET /a*b@%40%233 HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 200 OK') assert b'decoded: /a*b@@#3' in result.body assert b'raw: /a*b@%40%233' in result.body def test_ipv6(self): try: sock = eventlet.listen(('::1', 0), family=socket.AF_INET6) except (socket.gaierror, socket.error): # probably no ipv6 return log = six.StringIO() # first thing the server does is try to log the IP it's bound to def run_server(): try: wsgi.server(sock=sock, log=log, site=Site()) except ValueError: log.write(b'broken') self.spawn_thread(run_server) logval = log.getvalue() while not logval: eventlet.sleep(0.0) logval = log.getvalue() if 'broked' in logval: self.fail('WSGI server raised exception with ipv6 socket') def test_debug(self): self.spawn_server(debug=False) def crasher(env, start_response): raise RuntimeError("intentional crash") self.site.application = crasher sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() result1 = read_http(sock) self.assertEqual(result1.status, 'HTTP/1.1 500 Internal Server Error') self.assertEqual(result1.body, b'') self.assertEqual(result1.headers_lower['connection'], 'close') assert 'transfer-encoding' not in result1.headers_lower # verify traceback when debugging enabled self.spawn_server(debug=True) self.site.application = crasher sock = eventlet.connect(('localhost', self.port)) fd = sock.makefile('wb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() result2 = read_http(sock) self.assertEqual(result2.status, 'HTTP/1.1 500 Internal Server Error') assert b'intentional crash' in result2.body, result2.body assert b'RuntimeError' in result2.body, result2.body assert b'Traceback' in result2.body, result2.body self.assertEqual(result2.headers_lower['connection'], 'close') assert 'transfer-encoding' not in result2.headers_lower def test_client_disconnect(self): """Issue #95 Server must handle disconnect from client in the middle of response """ def long_response(environ, start_response): start_response('200 OK', [('Content-Length', '9876')]) yield b'a' * 9876 server_sock = eventlet.listen(('localhost', 0)) self.port = server_sock.getsockname()[1] server = wsgi.Server(server_sock, server_sock.getsockname(), long_response, log=self.logfile) def make_request(): sock = eventlet.connect(server_sock.getsockname()) sock.send(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') sock.close() request_thread = eventlet.spawn(make_request) server_conn = server_sock.accept() # Next line must not raise IOError -32 Broken pipe server.process_request(server_conn) request_thread.wait() server_sock.close() def test_server_connection_timeout_exception(self): # Handle connection socket timeouts # https://bitbucket.org/eventlet/eventlet/issue/143/ # Runs tests.wsgi_test_conntimeout in a separate process. testcode_path = os.path.join( os.path.dirname(os.path.abspath(__file__)), 'wsgi_test_conntimeout.py') output = tests.run_python(testcode_path) sections = output.split(b"SEPERATOR_SENTINEL") # first section is empty self.assertEqual(3, len(sections), output) # if the "BOOM" check fails, it's because our timeout didn't happen # (if eventlet stops using file.readline() to read HTTP headers, # for instance) for runlog in sections[1:]: debug = False if "debug set to: False" in runlog else True if debug: self.assertTrue("timed out" in runlog) self.assertTrue("BOOM" in runlog) self.assertFalse("Traceback" in runlog) def test_server_socket_timeout(self): self.spawn_server(socket_timeout=0.1) sock = eventlet.connect(('localhost', self.port)) sock.send(b'GET / HTTP/1.1\r\n') eventlet.sleep(0.1) try: read_http(sock) assert False, 'Expected ConnectionClosed exception' except ConnectionClosed: pass def test_disable_header_name_capitalization(self): # Disable HTTP header name capitalization # # https://github.com/eventlet/eventlet/issues/80 random_case_header = ('eTAg', 'TAg-VAluE') def wsgi_app(environ, start_response): start_response('200 oK', [random_case_header]) return [b''] self.spawn_server(site=wsgi_app, capitalize_response_headers=False) sock = eventlet.connect(('localhost', self.port)) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result = read_http(sock) sock.close() self.assertEqual(result.status, 'HTTP/1.1 200 oK') self.assertEqual(result.headers_lower[random_case_header[0].lower()], random_case_header[1]) self.assertEqual(result.headers_original[random_case_header[0]], random_case_header[1]) def read_headers(sock): fd = sock.makefile('rb') try: response_line = fd.readline() except socket.error as exc: if support.get_errno(exc) == 10053: raise ConnectionClosed raise if not response_line: raise ConnectionClosed header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line) headers = dict() for x in header_lines: x = x.strip() if not x: continue key, value = x.split(b': ', 1) assert key.lower() not in headers, "%s header duplicated" % key headers[bytes_to_str(key.lower())] = bytes_to_str(value) return bytes_to_str(response_line), headers class IterableAlreadyHandledTest(_TestBase): def set_site(self): self.site = IterableSite() def get_app(self): return IterableApp(True) def test_iterable_app_keeps_socket_open_unless_connection_close_sent(self): self.site.application = self.get_app() sock = eventlet.connect( ('localhost', self.port)) fd = sock.makefile('rwb') fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') fd.flush() response_line, headers = read_headers(sock) self.assertEqual(response_line, 'HTTP/1.1 200 OK\r\n') assert 'connection' not in headers fd.write(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') fd.flush() result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 200 OK') self.assertEqual(result.headers_lower.get('transfer-encoding'), 'chunked') self.assertEqual(result.body, b'0\r\n\r\n') # Still coming back chunked class ProxiedIterableAlreadyHandledTest(IterableAlreadyHandledTest): # same thing as the previous test but ensuring that it works with tpooled # results as well as regular ones @tests.skip_with_pyevent def get_app(self): return tpool.Proxy(super(ProxiedIterableAlreadyHandledTest, self).get_app()) def tearDown(self): tpool.killall() super(ProxiedIterableAlreadyHandledTest, self).tearDown() class TestChunkedInput(_TestBase): dirt = "" validator = None def application(self, env, start_response): input = env['wsgi.input'] response = [] pi = env["PATH_INFO"] if pi == "/short-read": d = input.read(10) response = [d] elif pi == "/lines": for x in input: response.append(x) elif pi == "/ping": input.read() response.append(b"pong") elif pi.startswith("/yield_spaces"): if pi.endswith('override_min'): env['eventlet.minimum_write_chunk_size'] = 1 self.yield_next_space = False def response_iter(): yield b' ' num_sleeps = 0 while not self.yield_next_space and num_sleeps < 200: eventlet.sleep(.01) num_sleeps += 1 yield b' ' start_response('200 OK', [('Content-Type', 'text/plain'), ('Content-Length', '2')]) return response_iter() else: raise RuntimeError("bad path") start_response('200 OK', [('Content-Type', 'text/plain')]) return response def connect(self): return eventlet.connect(('localhost', self.port)) def set_site(self): self.site = Site() self.site.application = self.application def chunk_encode(self, chunks, dirt=None): if dirt is None: dirt = self.dirt b = "" for c in chunks: b += "%x%s\r\n%s\r\n" % (len(c), dirt, c) return b def body(self, dirt=None): return self.chunk_encode(["this", " is ", "chunked", "\nline", " 2", "\n", "line3", ""], dirt=dirt) def ping(self, fd): fd.sendall(b"GET /ping HTTP/1.1\r\n\r\n") self.assertEqual(read_http(fd).body, b"pong") def test_short_read_with_content_length(self): body = self.body() req = "POST /short-read HTTP/1.1\r\ntransfer-encoding: Chunked\r\n" \ "Content-Length:1000\r\n\r\n" + body fd = self.connect() fd.sendall(req.encode()) self.assertEqual(read_http(fd).body, b"this is ch") self.ping(fd) fd.close() def test_short_read_with_zero_content_length(self): body = self.body() req = "POST /short-read HTTP/1.1\r\ntransfer-encoding: Chunked\r\n" \ "Content-Length:0\r\n\r\n" + body fd = self.connect() fd.sendall(req.encode()) self.assertEqual(read_http(fd).body, b"this is ch") self.ping(fd) fd.close() def test_short_read(self): body = self.body() req = "POST /short-read HTTP/1.1\r\ntransfer-encoding: Chunked\r\n\r\n" + body fd = self.connect() fd.sendall(req.encode()) self.assertEqual(read_http(fd).body, b"this is ch") self.ping(fd) fd.close() def test_dirt(self): body = self.body(dirt="; here is dirt\0bla") req = "POST /ping HTTP/1.1\r\ntransfer-encoding: Chunked\r\n\r\n" + body fd = self.connect() fd.sendall(req.encode()) self.assertEqual(read_http(fd).body, b"pong") self.ping(fd) fd.close() def test_chunked_readline(self): body = self.body() req = "POST /lines HTTP/1.1\r\nContent-Length: %s\r\n" \ "transfer-encoding: Chunked\r\n\r\n%s" % (len(body), body) fd = self.connect() fd.sendall(req.encode()) self.assertEqual(read_http(fd).body, b'this is chunked\nline 2\nline3') fd.close() def test_chunked_readline_wsgi_override_minimum_chunk_size(self): fd = self.connect() fd.sendall(b"POST /yield_spaces/override_min HTTP/1.1\r\nContent-Length: 0\r\n\r\n") resp_so_far = b'' with eventlet.Timeout(.1): while True: one_byte = fd.recv(1) resp_so_far += one_byte if resp_so_far.endswith(b'\r\n\r\n'): break self.assertEqual(fd.recv(1), b' ') try: with eventlet.Timeout(.1): fd.recv(1) except eventlet.Timeout: pass else: assert False self.yield_next_space = True with eventlet.Timeout(.1): self.assertEqual(fd.recv(1), b' ') def test_chunked_readline_wsgi_not_override_minimum_chunk_size(self): fd = self.connect() fd.sendall(b"POST /yield_spaces HTTP/1.1\r\nContent-Length: 0\r\n\r\n") resp_so_far = b'' try: with eventlet.Timeout(.1): while True: one_byte = fd.recv(1) resp_so_far += one_byte if resp_so_far.endswith(b'\r\n\r\n'): break self.assertEqual(fd.recv(1), b' ') except eventlet.Timeout: pass else: assert False def test_close_before_finished(self): got_signal = [] def handler(*args): got_signal.append(1) raise KeyboardInterrupt() signal.signal(signal.SIGALRM, handler) signal.alarm(1) try: body = '4\r\nthi' req = "POST /short-read HTTP/1.1\r\ntransfer-encoding: Chunked\r\n\r\n" + body fd = self.connect() fd.sendall(req.encode()) fd.close() eventlet.sleep(0.0) finally: signal.alarm(0) signal.signal(signal.SIGALRM, signal.SIG_DFL) assert not got_signal, "caught alarm signal. infinite loop detected." if __name__ == '__main__': unittest.main()