# coding: utf-8 import cgi import collections import errno import os import shutil import signal import socket import sys import tempfile import traceback import eventlet from eventlet import debug from eventlet import event from eventlet import greenio from eventlet import greenthread from eventlet import support from eventlet import tpool from eventlet import wsgi from eventlet.green import socket as greensocket from eventlet.green import ssl from eventlet.support import bytes_to_str import six from six.moves.urllib import parse 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')]) wsgi.WSGI_LOCAL.already_handled = True return [] 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=()): 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')]) else: wsgi.WSGI_LOCAL.already_handled = True 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' def recvall(sock): result = b'' while True: chunk = sock.recv(16 << 10) if chunk == b'': return result result += chunk 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, encoding='latin1').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.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.server_addr` to (host, port) tuple suitable for `socket.connect`. """ self.logfile = six.StringIO() 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.server_addr = new_kwargs['sock'].getsockname() 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(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(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') result = recvall(sock) # 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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') read_http(sock) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') read_http(sock) def test_004_close_keepalive(self): sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result1 = read_http(sock) assert result1.status == 'HTTP/1.1 200 OK' sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result2 = read_http(sock) assert result2.status == 'HTTP/1.1 200 OK' assert result2.headers_lower['connection'] == 'close' sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') self.assertRaises(ConnectionClosed, read_http, sock) def test_006_reject_long_urls(self): sock = eventlet.connect(self.server_addr) 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 = parse.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(self.server_addr) request = b'\r\n'.join(( b'POST / HTTP/1.0', b'Host: localhost', b'Content-Length: 3', b'', b'a=a')) sock.sendall(request) # send some junk after the actual request sock.sendall(b'01234567890123456789') result = read_http(sock) self.assertEqual(result.body, b'a is a, body is a=a') def test_008_correctresponse(self): sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result_200 = read_http(sock) sock.sendall(b'GET /notexist HTTP/1.1\r\nHost: localhost\r\n\r\n') read_http(sock) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result_test = read_http(sock) self.assertEqual(result_200.status, result_test.status) def test_009_chunked_response(self): self.site.application = chunked_app sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') assert b'Transfer-Encoding: chunked' in recvall(sock) def test_010_no_chunked_http_1_0(self): self.site.application = chunked_app sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: close\r\n\r\n') assert b'Transfer-Encoding: chunked' not in recvall(sock) def test_011_multiple_chunks(self): self.site.application = big_chunks sock = eventlet.connect(self.server_addr) 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') def test_partial_writes_are_handled(self): # https://github.com/eventlet/eventlet/issues/295 # Eventlet issue: "Python 3: wsgi doesn't handle correctly partial # write of socket send() when using writelines()". # # The bug was caused by the default writelines() implementation # (used by the wsgi module) which doesn't check if write() # successfully completed sending *all* data therefore data could be # lost and the client could be left hanging forever. # # Switching wsgi wfile to buffered mode fixes the issue. # # Related CPython issue: "Raw I/O writelines() broken", # http://bugs.python.org/issue26292 # # Custom accept() and send() in order to simulate a connection that # only sends one byte at a time so that any code that doesn't handle # partial writes correctly has to fail. listen_socket = eventlet.listen(('localhost', 0)) original_accept = listen_socket.accept def accept(): connection, address = original_accept() original_send = connection.send def send(b, *args): b = b[:1] return original_send(b, *args) connection.send = send return connection, address listen_socket.accept = accept def application(env, start_response): # Sending content-length is important here so that the client knows # exactly how many bytes does it need to wait for. start_response('200 OK', [('Content-length', 3)]) yield 'asd' self.spawn_server(sock=listen_socket) self.site.application = application sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') # This would previously hang forever result = read_http(sock) assert result.body == b'asd' @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(self.server_addr) 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(self.server_addr) 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(self.server_addr) 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(self.server_addr) 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(self.server_addr) sock.sendall(b'GET /a HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result1 = read_http(sock) assert 'content-length' in result1.headers_lower sock = eventlet.connect(self.server_addr) sock.sendall(b'GET /b HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') 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(self.server_addr) 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, addr = sock.accept() serv.process_request([addr, client_socket, wsgi.STATE_IDLE]) 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(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n') 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 sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n\r\n') result2 = read_http(sock) assert 'connection' in result2.headers_lower self.assertEqual('keep-alive', result2.headers_lower['connection']) sock.close() def test_018b_http_10_keepalive_framing(self): # verify that if an http/1.0 client sends connection: keep-alive # that we don't mangle the request framing if the app doesn't read the request def app(environ, start_response): resp_body = { '/1': b'first response', '/2': b'second response', '/3': b'third response', }.get(environ['PATH_INFO']) if resp_body is None: resp_body = 'Unexpected path: ' + environ['PATH_INFO'] if six.PY3: resp_body = resp_body.encode('latin1') # Never look at wsgi.input! start_response('200 OK', [('Content-type', 'text/plain')]) return [resp_body] self.site.application = app sock = eventlet.connect(self.server_addr) req_body = b'GET /tricksy HTTP/1.1\r\n' body_len = str(len(req_body)).encode('ascii') sock.sendall(b'PUT /1 HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n' b'Content-Length: ' + body_len + b'\r\n\r\n' + req_body) result1 = read_http(sock) self.assertEqual(b'first response', result1.body) self.assertEqual(result1.headers_original.get('Connection'), 'keep-alive') sock.sendall(b'PUT /2 HTTP/1.0\r\nHost: localhost\r\nConnection: keep-alive\r\n' b'Content-Length: ' + body_len + b'\r\nExpect: 100-continue\r\n\r\n') # Client may have a short timeout waiting on that 100 Continue # and basically immediately send its body sock.sendall(req_body) result2 = read_http(sock) self.assertEqual(b'second response', result2.body) self.assertEqual(result2.headers_original.get('Connection'), 'close') try: sock.sendall(b'PUT /3 HTTP/1.0\r\nHost: localhost\r\nConnection: close\r\n\r\n') except socket.error as err: # At one point this could succeed; presumably some older versions # of python will still allow it, but now we get a BrokenPipeError if err.errno != errno.EPIPE: raise with self.assertRaises(ConnectionClosed): read_http(sock) sock.close() # retry sock = eventlet.connect(self.server_addr) sock.sendall(b'PUT /3 HTTP/1.0\r\nHost: localhost\r\nConnection: close\r\n\r\n') result3 = read_http(sock) self.assertEqual(b'third response', result3.body) self.assertEqual(result3.headers_original.get('Connection'), 'close') 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(self.server_addr) sock.sendall(b'POST / HTTP/1.1\r\n' b'Host: localhost\r\n' b'Connection: close\r\n' b'Transfer-Encoding: chunked\r\n\r\n' b'2\r\noh\r\n' b'4\r\n hai\r\n0\r\n\r\n') assert b'hello!' in recvall(sock) 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(self.server_addr) 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(self.server_addr) 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(server_sock.getsockname()) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') result = sock.recv(1024) 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(server_sock.getsockname()) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') result = sock.recv(1024) 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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\n' b'Host: localhost\r\n' b'Connection: close\r\n' b'\r\n\r\n') assert b'200 OK' in recvall(sock) 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(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') result = recvall(sock) assert result.startswith(b'HTTP'), result assert result.endswith(b'hello world'), result def test_023_bad_content_length(self): sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nContent-length: argh\r\n\r\n') result = recvall(sock) assert result.startswith(b'HTTP'), result assert b'400 Bad Request' in result, result assert b'500' not in result, result sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nContent-length:\r\n\r\n') result = recvall(sock) assert result.startswith(b'HTTP'), result assert b'400 Bad Request' in result, result assert b'500' not in result, result sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nContent-length: \r\n\r\n') result = recvall(sock) assert result.startswith(b'HTTP'), result assert b'400 Bad Request' in result, result assert b'500' not in result, result sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\nContent-length: -10\r\n\r\n') result = recvall(sock) 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(self.server_addr) 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) # No "100 Continue" -- straight to final response self.assertEqual(result.status, 'HTTP/1.1 417 Expectation Failed') self.assertEqual(result.body, b'failure') self.assertEqual(result.headers_original.get('Connection'), 'close') # Client may still try to send the body fd.write(b'x' * 25) fd.flush() # But if they keep using this socket, it's going to close on them eventually fd.write(b'x' * 25) with self.assertRaises(socket.error) as caught: fd.flush() self.assertEqual(caught.exception.errno, errno.EPIPE) sock.close() sock = eventlet.connect(self.server_addr) fd = sock.makefile('rwb') # If we send the "100 Continue", we can pipeline requests through the one connection for expect_value in ('100-continue', '100-Continue'): fd.write( 'PUT / HTTP/1.1\r\nHost: localhost\r\nContent-length: 7\r\n' 'Expect: {}\r\n\r\ntesting'.format(expect_value).encode()) fd.flush() header_lines = [] while True: line = fd.readline() if not line: raise ConnectionClosed 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 not line: raise ConnectionClosed if line == b'\r\n': break else: header_lines.append(line) assert header_lines[0].startswith(b'HTTP/1.1 200 OK') assert 'Connection: close' not in header_lines 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(self.server_addr) 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') self.assertEqual(result.headers_original.get('Connection'), 'close') # At this point, the client needs to either kill the connection or send the bytes # because even though the server sent the response without reading the body, # it has no way of knowing whether the client already started sending or not sock.close() sock = eventlet.connect(self.server_addr) fd = sock.makefile('rwb') 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(self.server_addr) 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(self.server_addr) 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_024d_expect_100_continue_with_eager_app_chunked(self): def wsgi_app(environ, start_response): # app knows it's going to do some time-intensive thing and doesn't # want clients to time out, so it's protocol says to: # * generally expect a successful status code, # * be prepared to eat some whitespace that will get dribbled out # periodically, and # * parse the final status from the response body. environ['eventlet.minimum_write_chunk_size'] = 0 start_response('202 Accepted', []) def resp_gen(): yield b' ' environ['wsgi.input'].read() yield b' ' yield b'\n503 Service Unavailable\n\nOops!\n' return resp_gen() self.site.application = wsgi_app sock = eventlet.connect(self.server_addr) 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 the optimistic response header_lines = [] while True: line = fd.readline() if line == b'\r\n': break else: header_lines.append(line.strip()) self.assertEqual(header_lines[0], b'HTTP/1.1 202 Accepted') def chunkify(data): return '{:x}'.format(len(data)).encode('ascii') + b'\r\n' + data + b'\r\n' def expect_chunk(data): expected = chunkify(data) self.assertEqual(expected, fd.read(len(expected))) # Can even see that initial whitespace expect_chunk(b' ') # Send message fd.write(chunkify(b'some data')) fd.write(chunkify(b'')) # end-of-message fd.flush() # Expect final response expect_chunk(b' ') expect_chunk(b'\n503 Service Unavailable\n\nOops!\n') expect_chunk(b'') # end-of-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 tests.capture_stderr() as log: self.spawn_server(sock=listener) eventlet.sleep(0) # need to enter server loop try: eventlet.connect(self.server_addr) 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(self.server_addr) 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(self.server_addr) 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_chunked_response_when_app_yields_empty_string(self): def empty_string_chunked_app(env, start_response): env['eventlet.minimum_write_chunk_size'] = 0 # no buffering start_response('200 OK', [('Content-type', 'text/plain')]) return iter([b"stuff", b"", b"more stuff"]) self.site.application = empty_string_chunked_app sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result = read_http(sock) self.assertEqual(result.headers_lower.get('transfer-encoding'), 'chunked') self.assertEqual(result.body, b"5\r\nstuff\r\na\r\nmore stuff\r\n0\r\n\r\n") 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(self.server_addr) 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(self.server_addr) 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(self.server_addr) 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_026b_http_10_zero_keepalive(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=0) sock = eventlet.connect(self.server_addr) 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(self.server_addr) common_suffix = ( b'Host: localhost\r\nTransfer-Encoding: chunked\r\n\r\n' + b'10\r\n0123456789abcdef\r\n0\r\n\r\n') sock.sendall(b'PUT /a HTTP/1.1\r\n' + common_suffix) read_http(sock) sock.sendall(b'PUT /b HTTP/1.1\r\n' + common_suffix) read_http(sock) sock.sendall(b'PUT /c HTTP/1.1\r\n' + common_suffix) read_http(sock) sock.sendall(b'PUT /a HTTP/1.1\r\n' + common_suffix) 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) addr = srv_sock.getsockname() g = eventlet.spawn_n(server, srv_sock) client = eventlet.connect(addr) 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(addr)) 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(self.server_addr) 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(self.server_addr) 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(self.server_addr) 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(self.server_addr) 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(self.server_addr) sock.sendall(request.encode()) result = read_http(sock) self.assertEqual(result.body, upload_data) 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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') response = recvall(sock).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(self.server_addr) 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(self.server_addr) 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_aborted_chunked_post_between_chunks(self): read_content = event.Event() blew_up = [False] def chunk_reader(env, start_response): try: content = env['wsgi.input'].read(1024) except wsgi.ChunkReadError: blew_up[0] = True content = b'ok' except Exception as err: blew_up[0] = True content = b'wrong exception: ' + str(err).encode() read_content.send(content) start_response('200 OK', [('Content-Type', 'text/plain')]) return [content] self.site.application = chunk_reader expected_body = 'A' * 0xdb data = "\r\n".join(['PUT /somefile HTTP/1.0', 'Transfer-Encoding: chunked', '', 'db', expected_body]) # start PUT-ing some chunked data but close prematurely sock = eventlet.connect(self.server_addr) 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_aborted_chunked_post_bad_chunks(self): read_content = event.Event() blew_up = [False] def chunk_reader(env, start_response): try: content = env['wsgi.input'].read(1024) except wsgi.ChunkReadError: blew_up[0] = True content = b'ok' except Exception as err: blew_up[0] = True content = b'wrong exception: ' + str(err).encode() read_content.send(content) start_response('200 OK', [('Content-Type', 'text/plain')]) return [content] self.site.application = chunk_reader expected_body = 'look here is some data for you' data = "\r\n".join(['PUT /somefile HTTP/1.0', 'Transfer-Encoding: chunked', '', 'cats', expected_body]) # start PUT-ing some garbage sock = eventlet.connect(self.server_addr) 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_aborted_post_io_error(self): ran_post_req_hook = [False] def post_req_hook(env): ran_post_req_hook[0] = True def early_responder(env, start_response): env['eventlet.posthooks'] = [(post_req_hook, (), {})] start_response('200 OK', [('Content-Type', 'text/plain')]) return ['ok'] self.site.application = early_responder data = "\r\n".join(['PUT /somefile HTTP/1.1', 'Transfer-Encoding: chunked', '', '20', 'not 32 bytes']) sock = eventlet.connect(self.server_addr) sock.sendall(data.encode()) sock.close() # Give the server a chance to wrap things up eventlet.sleep(0.01) # Unexpected EOF shouldn't kill the server; # post-request processing should still happen assert ran_post_req_hook[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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 500 Internal Server Error') self.assertEqual(result.headers_lower['connection'], 'close') assert 'transfer-encoding' not in result.headers_lower def test_unicode_with_only_ascii_characters_works(self): def wsgi_app(environ, start_response): start_response("200 OK", []) yield b"oh hai, " yield u"xxx" self.site.application = wsgi_app sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result = read_http(sock) assert b'xxx' in result.body def test_unicode_with_nonascii_characters_raises_error(self): def wsgi_app(environ, start_response): start_response("200 OK", []) yield b"oh hai, " yield u"xxx \u0230" self.site.application = wsgi_app sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result = read_http(sock) self.assertEqual(result.status, 'HTTP/1.1 500 Internal Server Error') self.assertEqual(result.headers_lower['connection'], 'close') 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(self.server_addr) sock.sendall(b'GET /a*b@%40%233 HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result = read_http(sock) assert 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_path_info_latin1(self): # https://github.com/eventlet/eventlet/issues/468 g = [] def wsgi_app(environ, start_response): g.append(environ['PATH_INFO']) start_response("200 OK", []) return b'' self.site.application = wsgi_app sock = eventlet.connect(self.server_addr) # This is a properly-quoted request for the UTF-8 path /你好 sock.sendall(b'GET /%E4%BD%A0%E5%A5%BD HTTP/1.1\r\nHost: localhost\r\n\r\n') result = read_http(sock) assert result.status == 'HTTP/1.1 200 OK' # Like above, but the octets are reversed before being quoted, # so the result should *not* be interpreted as UTF-8 sock.sendall(b'GET /%BD%A5%E5%A0%BD%E4 HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n') result = read_http(sock) assert result.status == 'HTTP/1.1 200 OK' # that was only preparation, actual tests below # Per PEP-0333 https://www.python.org/dev/peps/pep-0333/#unicode-issues # in all WSGI environment strings application must observe either bytes in latin-1 (ISO-8859-1) # or unicode code points \u0000..\u00ff msg = 'Expected PATH_INFO to be a native string, not {0}'.format(type(g[0])) assert isinstance(g[0], str), msg # Fortunately, WSGI strings have the same literal representation on both py2 and py3 assert g[0] == '/\xe4\xbd\xa0\xe5\xa5\xbd' msg = 'Expected PATH_INFO to be a native string, not {0}'.format(type(g[1])) assert isinstance(g[1], str), msg assert g[1] == '/\xbd\xa5\xe5\xa0\xbd\xe4' @tests.skip_if_no_ipv6 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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') 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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') 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.server_addr = server_sock.getsockname() 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) client_sock, addr = server_sock.accept() # Next line must not raise IOError -32 Broken pipe server.process_request([addr, client_sock, wsgi.STATE_IDLE]) request_thread.wait() server_sock.close() def test_server_connection_timeout_exception(self): self.reset_timeout(5) # Handle connection socket timeouts # https://bitbucket.org/eventlet/eventlet/issue/143/ # Runs tests.wsgi_test_conntimeout in a separate process. tests.run_isolated('wsgi_connection_timeout.py') def test_server_socket_timeout(self): self.spawn_server(socket_timeout=0.1) sock = eventlet.connect(self.server_addr) 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_server_keepalive_as_timeout(self): calls = [] def call_tracker(env, start_response): calls.append((env['REQUEST_METHOD'], env['PATH_INFO'])) start_response('202 Accepted', []) return [] self.site.application = call_tracker self.spawn_server(socket_timeout=1.0, keepalive=0.1) sock = eventlet.connect(self.server_addr) sock.send(b'GET / HTTP/1.1\r\n') eventlet.sleep(0.1) # still within socket_timeout sock.send(b'Host: localhost\r\n\r\n') result = read_http(sock) assert 'keep-alive' not in result.headers_lower # now the socket's gone idle, though eventlet.sleep(0.1) try: sock.send(b'PUT / HTTP/1.1\r\nHost: localhost\r\n\r\n') read_http(sock) assert False, 'Expected ConnectionClosed exception' except ConnectionClosed: pass assert calls == [('GET', '/')] # no PUT! def test_server_keepalive_sent_in_headers(self): self.spawn_server(keepalive=2.5) sock = eventlet.connect(self.server_addr) sock.send( b'GET / HTTP/1.1\r\n' b'Connection: keep-alive\r\n' b'Host: localhost\r\n' b'\r\n') result = read_http(sock) assert 'connection' in result.headers_lower assert result.headers_lower['connection'] == 'keep-alive' assert 'keep-alive' in result.headers_lower assert result.headers_lower['keep-alive'] == 'timeout=2' sock.close() def test_header_name_capitalization(self): def wsgi_app(environ, start_response): start_response('200 oK', [ ('sOMe-WEirD', 'cAsE'), ('wiTH-\xdf-LATIN1-\xff', 'chars'), ]) return [b''] self.spawn_server(site=wsgi_app) sock = eventlet.connect(self.server_addr) 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.assertIn('Some-Weird', result.headers_original) self.assertEqual(result.headers_original['Some-Weird'], 'cAsE') self.assertIn('With-\xdf-Latin1-\xff', result.headers_original) self.assertEqual(result.headers_original['With-\xdf-Latin1-\xff'], 'chars') 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(self.server_addr) 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 test_log_unix_address(self): def app(environ, start_response): start_response('200 OK', []) return ['\n{0}={1}\n'.format(k, v).encode() for k, v in environ.items()] tempdir = tempfile.mkdtemp('eventlet_test_log_unix_address') try: server_sock = eventlet.listen(tempdir + '/socket', socket.AF_UNIX) path = server_sock.getsockname() log = six.StringIO() self.spawn_server(site=app, sock=server_sock, log=log) eventlet.sleep(0) # need to enter server loop assert 'http:' + path in log.getvalue() client_sock = eventlet.connect(path, family=socket.AF_UNIX) client_sock.sendall(b'GET / HTTP/1.0\r\nHost: localhost\r\n\r\n') result = read_http(client_sock) client_sock.close() assert '\nunix -' in log.getvalue() finally: shutil.rmtree(tempdir) assert result.status == 'HTTP/1.1 200 OK', repr(result) + log.getvalue() assert b'\nSERVER_NAME=unix\n' in result.body assert b'\nSERVER_PORT=\n' in result.body assert b'\nREMOTE_ADDR=unix\n' in result.body assert b'\nREMOTE_PORT=\n' in result.body def test_headers_raw(self): def app(environ, start_response): start_response('200 OK', []) return [b'\n'.join('{0}: {1}'.format(*kv).encode() for kv in environ['headers_raw'])] self.spawn_server(site=app) sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nx-ANY_k: one\r\nx-ANY_k: two\r\n\r\n') result = read_http(sock) sock.close() assert result.status == 'HTTP/1.1 200 OK' assert result.body == b'Host: localhost\nx-ANY_k: one\nx-ANY_k: two' def test_env_headers(self): def app(environ, start_response): start_response('200 OK', []) return ['{0}: {1}\n'.format(*kv).encode() for kv in sorted(environ.items()) if kv[0].startswith('HTTP_')] self.spawn_server(site=app) sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\npath-info: foo\r\n' b'x-ANY_k: one\r\nhttp-x-ANY_k: two\r\n\r\n') result = read_http(sock) sock.close() assert result.status == 'HTTP/1.1 200 OK', 'Received status {0!r}'.format(result.status) assert result.body == (b'HTTP_HOST: localhost\nHTTP_HTTP_X_ANY_K: two\n' b'HTTP_PATH_INFO: foo\nHTTP_X_ANY_K: one\n') def test_env_header_stripping(self): def app(environ, start_response): start_response('200 OK', []) # On py3, headers get parsed as Latin-1, so send them back out as Latin-1, too return [line if isinstance(line, bytes) else line.encode('latin1') for kv in sorted(environ.items()) if kv[0].startswith('HTTP_') for line in ('{0}: {1}\n'.format(*kv),)] self.spawn_server(site=app) sock = eventlet.connect(self.server_addr) sock.sendall( b'GET / HTTP/1.1\r\n' b'Host: localhost\r\n' b'spaced: o u t \r\n' b'trailing: tab\t\r\n' b'trailing-nbsp: \xc2\xa0\r\n' b'null-set: \xe2\x88\x85\r\n\r\n') result = read_http(sock) sock.close() assert result.status == 'HTTP/1.1 200 OK', 'Received status {0!r}'.format(result.status) assert result.body == ( b'HTTP_HOST: localhost\n' b'HTTP_NULL_SET: \xe2\x88\x85\n' b'HTTP_SPACED: o u t\n' b'HTTP_TRAILING: tab\n' b'HTTP_TRAILING_NBSP: \xc2\xa0\n') def test_log_disable(self): self.spawn_server(log_output=False) sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\npath-info: foo\r\n' b'x-ANY_k: one\r\nhttp-x-ANY_k: two\r\n\r\n') read_http(sock) sock.close() log_content = self.logfile.getvalue() assert log_content == '' def test_close_idle_connections(self): self.reset_timeout(2) pool = eventlet.GreenPool() self.spawn_server(custom_pool=pool) # https://github.com/eventlet/eventlet/issues/188 sock = eventlet.connect(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') result = read_http(sock) assert result.status == 'HTTP/1.1 200 OK', 'Received status {0!r}'.format(result.status) self.killer.kill(KeyboardInterrupt) try: with eventlet.Timeout(1): pool.waitall() except Exception: assert False, self.logfile.getvalue() 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(self.server_addr) sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\n\r\n') response_line, headers = read_headers(sock) self.assertEqual(response_line, 'HTTP/1.1 200 OK\r\n') assert 'connection' not in headers sock.sendall(b'GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\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') 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 def get_app(self): return tpool.Proxy(super(ProxiedIterableAlreadyHandledTest, self).get_app()) def tearDown(self): tpool.killall() super(ProxiedIterableAlreadyHandledTest, self).tearDown() class TestChunkedInput(_TestBase): 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 == "/readline": response.extend(iter(input.readline, b'')) response.append(('\nread %d lines' % len(response)).encode()) elif pi == "/readlines": response.extend(input.readlines()) response.append(('\nread %d lines' % len(response)).encode()) 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(self.server_addr) def set_site(self): self.site = Site() self.site.application = self.application def chunk_encode(self, chunks, dirt=""): b = "" for c in chunks: b += "%x%s\r\n%s\r\n" % (len(c), dirt, c) return b def body(self, dirt=""): 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_from_input(self): body = self.body() req = "POST /readline 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\nread 3 lines') fd.close() def test_chunked_readlines_from_input(self): body = self.body() req = "POST /readlines 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\nread 3 lines') 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) # This is needed because on Python 3 GreenSocket.recv_into is called # rather than recv; recv_into right now (git 5ec3a3c) trampolines to # the hub *before* attempting to read anything from a file descriptor # therefore we need one extra context switch to let it notice closed # socket, die and leave the hub empty if six.PY3: eventlet.sleep(0) finally: signal.alarm(0) signal.signal(signal.SIGALRM, signal.SIG_DFL) assert not got_signal, "caught alarm signal. infinite loop detected."