# Copyright 2010, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. import cStringIO import unittest import http # relative import to ease embedding the library import util def chunkedblock(x, eol='\r\n'): r"""Make a chunked transfer-encoding block. >>> chunkedblock('hi') '2\r\nhi\r\n' >>> chunkedblock('hi' * 10) '14\r\nhihihihihihihihihihi\r\n' >>> chunkedblock('hi', eol='\n') '2\nhi\n' """ return ''.join((hex(len(x))[2:], eol, x, eol)) class ChunkedTransferTest(util.HttpTestBase, unittest.TestCase): def testChunkedUpload(self): con = http.HTTPConnection('1.2.3.4:80') con._connect() sock = con.sock sock.read_wait_sentinel = '0\r\n\r\n' sock.data = ['HTTP/1.1 200 OK\r\n', 'Server: BogusServer 1.0\r\n', 'Content-Length: 6', '\r\n\r\n', "Thanks"] zz = 'zz\n' con.request('POST', '/', body=cStringIO.StringIO( (zz * (0x8010 / 3)) + 'end-of-body')) expected_req = ('POST / HTTP/1.1\r\n' 'transfer-encoding: chunked\r\n' 'Host: 1.2.3.4\r\n' 'accept-encoding: identity\r\n\r\n') expected_req += chunkedblock('zz\n' * (0x8000 / 3) + 'zz') expected_req += chunkedblock( '\n' + 'zz\n' * ((0x1b - len('end-of-body')) / 3) + 'end-of-body') expected_req += '0\r\n\r\n' self.assertEqual(('1.2.3.4', 80), sock.sa) self.assertStringEqual(expected_req, sock.sent) self.assertEqual("Thanks", con.getresponse().read()) self.assertEqual(sock.closed, False) def testChunkedDownload(self): con = http.HTTPConnection('1.2.3.4:80') con._connect() sock = con.sock sock.data = ['HTTP/1.1 200 OK\r\n', 'Server: BogusServer 1.0\r\n', 'transfer-encoding: chunked', '\r\n\r\n', chunkedblock('hi '), chunkedblock('there'), chunkedblock(''), ] con.request('GET', '/') self.assertStringEqual('hi there', con.getresponse().read()) def testChunkedDownloadBadEOL(self): con = http.HTTPConnection('1.2.3.4:80') con._connect() sock = con.sock sock.data = ['HTTP/1.1 200 OK\n', 'Server: BogusServer 1.0\n', 'transfer-encoding: chunked', '\n\n', chunkedblock('hi ', eol='\n'), chunkedblock('there', eol='\n'), chunkedblock('', eol='\n'), ] con.request('GET', '/') self.assertStringEqual('hi there', con.getresponse().read()) def testChunkedDownloadPartialChunkBadEOL(self): con = http.HTTPConnection('1.2.3.4:80') con._connect() sock = con.sock sock.data = ['HTTP/1.1 200 OK\n', 'Server: BogusServer 1.0\n', 'transfer-encoding: chunked', '\n\n', chunkedblock('hi ', eol='\n'), ] + list(chunkedblock('there\n' * 5, eol='\n')) + [ chunkedblock('', eol='\n')] con.request('GET', '/') self.assertStringEqual('hi there\nthere\nthere\nthere\nthere\n', con.getresponse().read()) def testChunkedDownloadPartialChunk(self): con = http.HTTPConnection('1.2.3.4:80') con._connect() sock = con.sock sock.data = ['HTTP/1.1 200 OK\r\n', 'Server: BogusServer 1.0\r\n', 'transfer-encoding: chunked', '\r\n\r\n', chunkedblock('hi '), ] + list(chunkedblock('there\n' * 5)) + [chunkedblock('')] con.request('GET', '/') self.assertStringEqual('hi there\nthere\nthere\nthere\nthere\n', con.getresponse().read()) def testChunkedDownloadEarlyHangup(self): con = http.HTTPConnection('1.2.3.4:80') con._connect() sock = con.sock broken = chunkedblock('hi'*20)[:-1] sock.data = ['HTTP/1.1 200 OK\r\n', 'Server: BogusServer 1.0\r\n', 'transfer-encoding: chunked', '\r\n\r\n', broken, ] sock.close_on_empty = True con.request('GET', '/') resp = con.getresponse() self.assertRaises(http.HTTPRemoteClosedError, resp.read) # no-check-code