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test_http.py
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test_http.py
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"""Tests for managing HTTP issues (malformed requests, etc)."""
import errno
import mimetypes
import socket
import sys
from unittest import mock
import six
import cherrypy
from cherrypy._cpcompat import HTTPConnection, HTTPSConnection, ntob
from cherrypy.test import helper
def encode_multipart_formdata(files):
"""Return (content_type, body) ready for httplib.HTTP instance.
files: a sequence of (name, filename, value) tuples for multipart uploads.
"""
BOUNDARY = '________ThIs_Is_tHe_bouNdaRY_$'
L = []
for key, filename, value in files:
L.append('--' + BOUNDARY)
L.append('Content-Disposition: form-data; name="%s"; filename="%s"' %
(key, filename))
ct = mimetypes.guess_type(filename)[0] or 'application/octet-stream'
L.append('Content-Type: %s' % ct)
L.append('')
L.append(value)
L.append('--' + BOUNDARY + '--')
L.append('')
body = '\r\n'.join(L)
content_type = 'multipart/form-data; boundary=%s' % BOUNDARY
return content_type, body
class HTTPTests(helper.CPWebCase):
def make_connection(self):
if self.scheme == 'https':
return HTTPSConnection('%s:%s' % (self.interface(), self.PORT))
else:
return HTTPConnection('%s:%s' % (self.interface(), self.PORT))
@staticmethod
def setup_server():
class Root:
@cherrypy.expose
def index(self, *args, **kwargs):
return 'Hello world!'
@cherrypy.expose
@cherrypy.config(**{'request.process_request_body': False})
def no_body(self, *args, **kwargs):
return 'Hello world!'
@cherrypy.expose
def post_multipart(self, file):
"""Return a summary ("a * 65536\nb * 65536") of the uploaded
file.
"""
contents = file.file.read()
summary = []
curchar = None
count = 0
for c in contents:
if c == curchar:
count += 1
else:
if count:
if six.PY3:
curchar = chr(curchar)
summary.append('%s * %d' % (curchar, count))
count = 1
curchar = c
if count:
if six.PY3:
curchar = chr(curchar)
summary.append('%s * %d' % (curchar, count))
return ', '.join(summary)
@cherrypy.expose
def post_filename(self, myfile):
'''Return the name of the file which was uploaded.'''
return myfile.filename
cherrypy.tree.mount(Root())
cherrypy.config.update({'server.max_request_body_size': 30000000})
def test_no_content_length(self):
# "The presence of a message-body in a request is signaled by the
# inclusion of a Content-Length or Transfer-Encoding header field in
# the request's message-headers."
#
# Send a message with neither header and no body. Even though
# the request is of method POST, this should be OK because we set
# request.process_request_body to False for our handler.
c = self.make_connection()
c.request('POST', '/no_body')
response = c.getresponse()
self.body = response.fp.read()
self.status = str(response.status)
self.assertStatus(200)
self.assertBody(ntob('Hello world!'))
# Now send a message that has no Content-Length, but does send a body.
# Verify that CP times out the socket and responds
# with 411 Length Required.
if self.scheme == 'https':
c = HTTPSConnection('%s:%s' % (self.interface(), self.PORT))
else:
c = HTTPConnection('%s:%s' % (self.interface(), self.PORT))
# `_get_content_length` is needed for Python 3.6+
with mock.patch.object(c, '_get_content_length', lambda body, method: None, create=True):
# `_set_content_length` is needed for Python 2.7-3.5
with mock.patch.object(c, '_set_content_length', create=True):
c.request('POST', '/')
response = c.getresponse()
self.body = response.fp.read()
self.status = str(response.status)
self.assertStatus(411)
def test_post_multipart(self):
alphabet = 'abcdefghijklmnopqrstuvwxyz'
# generate file contents for a large post
contents = ''.join([c * 65536 for c in alphabet])
# encode as multipart form data
files = [('file', 'file.txt', contents)]
content_type, body = encode_multipart_formdata(files)
body = body.encode('Latin-1')
# post file
c = self.make_connection()
c.putrequest('POST', '/post_multipart')
c.putheader('Content-Type', content_type)
c.putheader('Content-Length', str(len(body)))
c.endheaders()
c.send(body)
response = c.getresponse()
self.body = response.fp.read()
self.status = str(response.status)
self.assertStatus(200)
self.assertBody(', '.join(['%s * 65536' % c for c in alphabet]))
def test_post_filename_with_special_characters(self):
'''Testing that we can handle filenames with special characters. This
was reported as a bug in:
https://github.com/cherrypy/cherrypy/issues/1146/
https://github.com/cherrypy/cherrypy/issues/1397'''
# We'll upload a bunch of files with differing names.
fnames = ['boop.csv', 'foo, bar.csv', 'bar, xxxx.csv', 'file"name.csv',
'file;name.csv', 'file; name.csv']
for fname in fnames:
files = [('myfile', fname, 'yunyeenyunyue')]
content_type, body = encode_multipart_formdata(files)
body = body.encode('Latin-1')
# post file
c = self.make_connection()
c.putrequest('POST', '/post_filename')
c.putheader('Content-Type', content_type)
c.putheader('Content-Length', str(len(body)))
c.endheaders()
c.send(body)
response = c.getresponse()
self.body = response.fp.read()
self.status = str(response.status)
self.assertStatus(200)
self.assertBody(fname)
def test_malformed_request_line(self):
if getattr(cherrypy.server, 'using_apache', False):
return self.skip('skipped due to known Apache differences...')
# Test missing version in Request-Line
c = self.make_connection()
c._output(ntob('GET /'))
c._send_output()
if hasattr(c, 'strict'):
response = c.response_class(c.sock, strict=c.strict, method='GET')
else:
# Python 3.2 removed the 'strict' feature, saying:
# "http.client now always assumes HTTP/1.x compliant servers."
response = c.response_class(c.sock, method='GET')
response.begin()
self.assertEqual(response.status, 400)
self.assertEqual(response.fp.read(22), ntob('Malformed Request-Line'))
c.close()
def test_request_line_split_issue_1220(self):
Request_URI = (
'/index?intervenant-entreprise-evenement_classaction=evenement-mailremerciements'
'&_path=intervenant-entreprise-evenement&intervenant-entreprise-evenement_action-id=19404'
'&intervenant-entreprise-evenement_id=19404&intervenant-entreprise_id=28092'
)
self.assertEqual(len('GET %s HTTP/1.1\r\n' % Request_URI), 256)
self.getPage(Request_URI)
self.assertBody('Hello world!')
def test_malformed_header(self):
c = self.make_connection()
c.putrequest('GET', '/')
c.putheader('Content-Type', 'text/plain')
# See https://github.com/cherrypy/cherrypy/issues/941
c._output(ntob('Re, 1.2.3.4#015#012'))
c.endheaders()
response = c.getresponse()
self.status = str(response.status)
self.assertStatus(400)
self.body = response.fp.read(20)
self.assertBody('Illegal header line.')
def test_http_over_https(self):
if self.scheme != 'https':
return self.skip('skipped (not running HTTPS)... ')
# Try connecting without SSL.
conn = HTTPConnection('%s:%s' % (self.interface(), self.PORT))
conn.putrequest('GET', '/', skip_host=True)
conn.putheader('Host', self.HOST)
conn.endheaders()
response = conn.response_class(conn.sock, method='GET')
try:
response.begin()
self.assertEqual(response.status, 400)
self.body = response.read()
self.assertBody('The client sent a plain HTTP request, but this '
'server only speaks HTTPS on this port.')
except socket.error:
e = sys.exc_info()[1]
# "Connection reset by peer" is also acceptable.
if e.errno != errno.ECONNRESET:
raise
def test_garbage_in(self):
# Connect without SSL regardless of server.scheme
c = HTTPConnection('%s:%s' % (self.interface(), self.PORT))
c._output(ntob('gjkgjklsgjklsgjkljklsg'))
c._send_output()
response = c.response_class(c.sock, method='GET')
try:
response.begin()
self.assertEqual(response.status, 400)
self.assertEqual(response.fp.read(22),
ntob('Malformed Request-Line'))
c.close()
except socket.error:
e = sys.exc_info()[1]
# "Connection reset by peer" is also acceptable.
if e.errno != errno.ECONNRESET:
raise