/usr/lib/python2.7/dist-packages/twext/web2/test/test_client.py is in calendarserver 5.2+dfsg-1.
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# See LICENSE for details.
from __future__ import print_function
"""
Tests for HTTP client.
"""
from twisted.internet import protocol, defer
from twext.web2.client import http
from twext.web2 import http_headers
from twext.web2 import stream
from twext.web2.test.test_http import LoopbackRelay, HTTPTests, TestConnection
class TestServer(protocol.Protocol):
data = ""
done = False
def dataReceived(self, data):
self.data += data
def write(self, data):
self.transport.write(data)
def connectionLost(self, reason):
self.done = True
self.transport.loseConnection()
def loseConnection(self):
self.done = True
self.transport.loseConnection()
class ClientTests(HTTPTests):
def connect(self, logFile=None, maxPipeline=4,
inputTimeOut=60000, betweenRequestsTimeOut=600000):
cxn = TestConnection()
cxn.client = http.HTTPClientProtocol()
cxn.client.inputTimeOut = inputTimeOut
cxn.server = TestServer()
cxn.serverToClient = LoopbackRelay(cxn.client, logFile)
cxn.clientToServer = LoopbackRelay(cxn.server, logFile)
cxn.server.makeConnection(cxn.serverToClient)
cxn.client.makeConnection(cxn.clientToServer)
return cxn
def writeToClient(self, cxn, data):
cxn.server.write(data)
self.iterate(cxn)
def writeLines(self, cxn, lines):
self.writeToClient(cxn, '\r\n'.join(lines))
def assertReceived(self, cxn, expectedStatus, expectedHeaders,
expectedContent=None):
self.iterate(cxn)
headers, content = cxn.server.data.split('\r\n\r\n', 1)
status, headers = headers.split('\r\n', 1)
headers = headers.split('\r\n')
# check status line
self.assertEquals(status, expectedStatus)
# check headers (header order isn't guraunteed so we use
# self.assertIn
for x in headers:
self.assertIn(x, expectedHeaders)
if not expectedContent:
expectedContent = ''
self.assertEquals(content, expectedContent)
def assertDone(self, cxn):
self.iterate(cxn)
self.assertEquals(cxn.server.done, True, 'Connection not closed.')
def assertHeaders(self, resp, expectedHeaders):
headers = list(resp.headers.getAllRawHeaders())
headers.sort()
self.assertEquals(headers, expectedHeaders)
def checkResponse(self, resp, code, headers, length, data):
"""
Assert various things about a response: http code, headers, stream
length, and data in stream.
"""
def gotData(gotdata):
self.assertEquals(gotdata, data)
self.assertEquals(resp.code, code)
self.assertHeaders(resp, headers)
self.assertEquals(resp.stream.length, length)
return defer.maybeDeferred(resp.stream.read).addCallback(gotData)
class TestHTTPClient(ClientTests):
"""
Test that the http client works.
"""
def test_simpleRequest(self):
"""
Your basic simple HTTP Request.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
d = cxn.client.submitRequest(req).addCallback(self.checkResponse, 200, [], 10, '1234567890')
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: close'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Content-Length: 10',
'Connection: close',
'',
'1234567890'))
return d.addCallback(lambda _: self.assertDone(cxn))
def test_delayedContent(self):
"""
Make sure that the client returns the response object as soon as the
headers are received, even if the data hasn't arrived yet.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
def gotData(data):
self.assertEquals(data, '1234567890')
def gotResp(resp):
self.assertEquals(resp.code, 200)
self.assertHeaders(resp, [])
self.assertEquals(resp.stream.length, 10)
self.writeToClient(cxn, '1234567890')
return defer.maybeDeferred(resp.stream.read).addCallback(gotData)
d = cxn.client.submitRequest(req).addCallback(gotResp)
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: close'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Content-Length: 10',
'Connection: close',
'\r\n'))
return d.addCallback(lambda _: self.assertDone(cxn))
def test_prematurePipelining(self):
"""
Ensure that submitting a second request before it's allowed results
in an AssertionError.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
req2 = http.ClientRequest('GET', '/bar', None, None)
d = cxn.client.submitRequest(req, closeAfter=False).addCallback(
self.checkResponse, 200, [], 0, None)
self.assertRaises(AssertionError,
cxn.client.submitRequest, req2)
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: Keep-Alive'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Content-Length: 0',
'Connection: close',
'\r\n'))
return d
def test_userHeaders(self):
"""
Make sure that headers get through in both directions.
"""
cxn = self.connect(inputTimeOut=None)
def submitNext(_):
headers = http_headers.Headers(
headers={'Accept-Language': {'en': 1.0}},
rawHeaders={'X-My-Other-Header': ['socks']})
req = http.ClientRequest('GET', '/', headers, None)
cxn.server.data = ''
d = cxn.client.submitRequest(req, closeAfter=True)
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: close',
'X-My-Other-Header: socks',
'Accept-Language: en'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Content-Length: 0',
'Connection: close',
'\r\n'))
return d
req = http.ClientRequest('GET', '/',
{'Accept-Language': {'en': 1.0}}, None)
d = cxn.client.submitRequest(req, closeAfter=False).addCallback(
self.checkResponse, 200, [('X-Foobar', ['Yes'])], 0, None).addCallback(
submitNext)
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: Keep-Alive',
'Accept-Language: en'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Content-Length: 0',
'X-Foobar: Yes',
'\r\n'))
return d.addCallback(lambda _: self.assertDone(cxn))
def test_streamedUpload(self):
"""
Make sure that sending request content works.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('PUT', '/foo', None, 'Helloooo content')
d = cxn.client.submitRequest(req).addCallback(self.checkResponse, 202, [], 0, None)
self.assertReceived(cxn, 'PUT /foo HTTP/1.1',
['Connection: close',
'Content-Length: 16'],
'Helloooo content')
self.writeLines(cxn, ('HTTP/1.1 202 Accepted',
'Content-Length: 0',
'Connection: close',
'\r\n'))
return d.addCallback(lambda _: self.assertDone(cxn))
def test_sentHead(self):
"""
Ensure that HEAD requests work, and return Content-Length.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('HEAD', '/', None, None)
d = cxn.client.submitRequest(req).addCallback(self.checkResponse, 200, [('Content-Length', ['5'])], 0, None)
self.assertReceived(cxn, 'HEAD / HTTP/1.1',
['Connection: close'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Connection: close',
'Content-Length: 5',
'',
'Pants')) # bad server
return d.addCallback(lambda _: self.assertDone(cxn))
def test_sentHeadKeepAlive(self):
"""
Ensure that keepalive works right after a HEAD request.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('HEAD', '/', None, None)
didIt = [0]
def gotData(data):
self.assertEquals(data, None)
def gotResp(resp):
self.assertEquals(resp.code, 200)
self.assertEquals(resp.stream.length, 0)
self.assertHeaders(resp, [])
return defer.maybeDeferred(resp.stream.read).addCallback(gotData)
def submitRequest(second):
if didIt[0]:
return
didIt[0] = second
if second:
keepAlive='close'
else:
keepAlive='Keep-Alive'
cxn.server.data = ''
d = cxn.client.submitRequest(req, closeAfter=second).addCallback(
self.checkResponse, 200, [('Content-Length', ['5'])], 0, None)
self.assertReceived(cxn, 'HEAD / HTTP/1.1',
['Connection: '+ keepAlive])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Connection: '+ keepAlive,
'Content-Length: 5',
'\r\n'))
return d.addCallback(lambda _: submitRequest(1))
d = submitRequest(0)
return d.addCallback(lambda _: self.assertDone(cxn))
def test_chunkedUpload(self):
"""
Ensure chunked data is correctly decoded on upload.
"""
cxn = self.connect(inputTimeOut=None)
data = 'Foo bar baz bax'
s = stream.ProducerStream(length=None)
s.write(data)
req = http.ClientRequest('PUT', '/', None, s)
d = cxn.client.submitRequest(req)
s.finish()
self.assertReceived(cxn, 'PUT / HTTP/1.1',
['Connection: close',
'Transfer-Encoding: chunked'],
'%X\r\n%s\r\n0\r\n\r\n' % (len(data), data))
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Connection: close',
'Content-Length: 0',
'\r\n'))
return d.addCallback(lambda _: self.assertDone(cxn))
class TestEdgeCases(ClientTests):
def test_serverDoesntSendConnectionClose(self):
"""
Check that a lost connection is treated as end of response, if we
requested connection: close, even if the server didn't respond with
connection: close.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
d = cxn.client.submitRequest(req).addCallback(self.checkResponse, 200, [], None, 'Some Content')
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: close'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'',
'Some Content'))
return d.addCallback(lambda _: self.assertDone(cxn))
def test_serverIsntHttp(self):
"""
Check that an error is returned if the server doesn't talk HTTP.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
def gotResp(r):
print(r)
d = cxn.client.submitRequest(req).addCallback(gotResp)
self.assertFailure(d, http.ProtocolError)
self.writeLines(cxn, ('HTTP-NG/1.1 200 OK',
'\r\n'))
def test_newServer(self):
"""
Check that an error is returned if the server is a new major version.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
d = cxn.client.submitRequest(req)
self.assertFailure(d, http.ProtocolError)
self.writeLines(cxn, ('HTTP/2.3 200 OK',
'\r\n'))
def test_shortStatus(self):
"""
Check that an error is returned if the response line is invalid.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
d = cxn.client.submitRequest(req)
self.assertFailure(d, http.ProtocolError)
self.writeLines(cxn, ('HTTP/1.1 200',
'\r\n'))
def test_errorReadingRequestStream(self):
"""
Ensure that stream errors are propagated to the response.
"""
cxn = self.connect(inputTimeOut=None)
s = stream.ProducerStream()
s.write('Foo')
req = http.ClientRequest('GET', '/', None, s)
d = cxn.client.submitRequest(req)
s.finish(IOError('Test Error'))
return self.assertFailure(d, IOError)
def test_connectionLost(self):
"""
Check that closing the connection is propagated to the response
deferred.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
d = cxn.client.submitRequest(req)
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: close'])
cxn.client.connectionLost(ValueError("foo"))
return self.assertFailure(d, ValueError)
def test_connectionLostAfterHeaders(self):
"""
Test that closing the connection after headers are sent is propagated
to the response stream.
"""
cxn = self.connect(inputTimeOut=None)
req = http.ClientRequest('GET', '/', None, None)
d = cxn.client.submitRequest(req)
self.assertReceived(cxn, 'GET / HTTP/1.1',
['Connection: close'])
self.writeLines(cxn, ('HTTP/1.1 200 OK',
'Content-Length: 10',
'Connection: close',
'\r\n'))
cxn.client.connectionLost(ValueError("foo"))
def cb(response):
return self.assertFailure(response.stream.read(), ValueError)
d.addCallback(cb)
return d
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