httpclient: import revision b8c3511a8cae from py-nonblocking-http

Fixes issues with SSL_ERROR_WANT_READ incorrectly breaking the
response read.

mercurial/httpclient/tests/test_ssl.py

@@ -0,0 +1,94
+# Copyright 2011, 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 unittest
+
+import http
+
+# relative import to ease embedding the library
+import util
+
+
+
+class HttpSslTest(util.HttpTestBase, unittest.TestCase):
+    def testSslRereadRequired(self):
+        con = http.HTTPConnection('1.2.3.4:443')
+        con._connect()
+        # extend the list instead of assign because of how
+        # MockSSLSocket works.
+        con.sock.data.extend(['HTTP/1.1 200 OK\r\n',
+                              'Server: BogusServer 1.0\r\n',
+                              'MultiHeader: Value\r\n'
+                              'MultiHeader: Other Value\r\n'
+                              'MultiHeader: One More!\r\n'
+                              'Content-Length: 10\r\n',
+                              '\r\n'
+                              '1234567890'
+                              ])
+        con.request('GET', '/')
+
+        expected_req = ('GET / HTTP/1.1\r\n'
+                        'Host: 1.2.3.4\r\n'
+                        'accept-encoding: identity\r\n\r\n')
+
+        self.assertEqual(('1.2.3.4', 443), con.sock.sa)
+        self.assertEqual(expected_req, con.sock.sent)
+        resp = con.getresponse()
+        self.assertEqual('1234567890', resp.read())
+        self.assertEqual(['Value', 'Other Value', 'One More!'],
+                         resp.headers.getheaders('multiheader'))
+        self.assertEqual(['BogusServer 1.0'],
+                         resp.headers.getheaders('server'))
+
+    def testSslRereadInEarlyResponse(self):
+        con = http.HTTPConnection('1.2.3.4:443')
+        con._connect()
+        # extend the list instead of assign because of how
+        # MockSSLSocket works.
+        con.sock.early_data.extend(['HTTP/1.1 200 OK\r\n',
+                                    'Server: BogusServer 1.0\r\n',
+                                    'MultiHeader: Value\r\n'
+                                    'MultiHeader: Other Value\r\n'
+                                    'MultiHeader: One More!\r\n'
+                                    'Content-Length: 10\r\n',
+                                    '\r\n'
+                                    '1234567890'
+                                    ])
+
+        expected_req = self.doPost(con, False)
+        self.assertEqual(None, con.sock,
+                         'Connection should have disowned socket')
+
+        resp = con.getresponse()
+        self.assertEqual(('1.2.3.4', 443), resp.sock.sa)
+        self.assertEqual(expected_req, resp.sock.sent)
+        self.assertEqual('1234567890', resp.read())
+        self.assertEqual(['Value', 'Other Value', 'One More!'],
+                         resp.headers.getheaders('multiheader'))
+        self.assertEqual(['BogusServer 1.0'],
+                         resp.headers.getheaders('server'))

mercurial/httpclient/__init__.py

@@ -1,652 +1,665
 # 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.
 """Improved HTTP/1.1 client library
 
 This library contains an HTTPConnection which is similar to the one in
 httplib, but has several additional features:
 
   * supports keepalives natively
   * uses select() to block for incoming data
   * notices when the server responds early to a request
   * implements ssl inline instead of in a different class
 """
 
 import cStringIO
 import errno
 import httplib
 import logging
 import rfc822
 import select
 import socket
 
 import socketutil
 
 logger = logging.getLogger(__name__)
 
 __all__ = ['HTTPConnection', 'HTTPResponse']
 
 HTTP_VER_1_0 = 'HTTP/1.0'
 HTTP_VER_1_1 = 'HTTP/1.1'
 
 _LEN_CLOSE_IS_END = -1
 
 OUTGOING_BUFFER_SIZE = 1 << 15
 INCOMING_BUFFER_SIZE = 1 << 20
 
 HDR_ACCEPT_ENCODING = 'accept-encoding'
 HDR_CONNECTION_CTRL = 'connection'
 HDR_CONTENT_LENGTH = 'content-length'
 HDR_XFER_ENCODING = 'transfer-encoding'
 
 XFER_ENCODING_CHUNKED = 'chunked'
 
 CONNECTION_CLOSE = 'close'
 
 EOL = '\r\n'
 _END_HEADERS = EOL * 2
 
 # Based on some searching around, 1 second seems like a reasonable
 # default here.
 TIMEOUT_ASSUME_CONTINUE = 1
 TIMEOUT_DEFAULT = None
 
 
 class HTTPResponse(object):
     """Response from an HTTP server.
 
     The response will continue to load as available. If you need the
     complete response before continuing, check the .complete() method.
     """
     def __init__(self, sock, timeout):
         self.sock = sock
         self.raw_response = ''
         self._body = None
         self._headers_len = 0
         self._content_len = 0
         self.headers = None
         self.will_close = False
         self.status_line = ''
         self.status = None
         self.http_version = None
         self.reason = None
         self._chunked = False
         self._chunked_done = False
         self._chunked_until_next = 0
         self._chunked_skip_bytes = 0
         self._chunked_preloaded_block = None
 
         self._read_location = 0
         self._eol = EOL
 
         self._timeout = timeout
 
     @property
     def _end_headers(self):
         return self._eol * 2
 
     def complete(self):
         """Returns true if this response is completely loaded.
         """
         if self._chunked:
             return self._chunked_done
         if self._content_len == _LEN_CLOSE_IS_END:
             return False
         return self._body is not None and len(self._body) >= self._content_len
 
     def readline(self):
         """Read a single line from the response body.
 
         This may block until either a line ending is found or the
         response is complete.
         """
         eol = self._body.find('\n', self._read_location)
         while eol == -1 and not self.complete():
             self._select()
             eol = self._body.find('\n', self._read_location)
         if eol != -1:
             eol += 1
         else:
             eol = len(self._body)
         data = self._body[self._read_location:eol]
         self._read_location = eol
         return data
 
     def read(self, length=None):
         # if length is None, unbounded read
         while (not self.complete()  # never select on a finished read
                and (not length  # unbounded, so we wait for complete()
                     or (self._read_location + length) > len(self._body))):
             self._select()
         if not length:
             length = len(self._body) - self._read_location
         elif len(self._body) < (self._read_location + length):
             length = len(self._body) - self._read_location
         r = self._body[self._read_location:self._read_location + length]
         self._read_location += len(r)
         if self.complete() and self.will_close:
             self.sock.close()
         return r
 
     def _select(self):
         r, _, _ = select.select([self.sock], [], [], self._timeout)
         if not r:
             # socket was not readable. If the response is not complete
             # and we're not a _LEN_CLOSE_IS_END response, raise a timeout.
             # If we are a _LEN_CLOSE_IS_END response and we have no data,
             # raise a timeout.
             if not (self.complete() or
                     (self._content_len == _LEN_CLOSE_IS_END and self._body)):
                 logger.info('timed out with timeout of %s', self._timeout)
                 raise HTTPTimeoutException('timeout reading data')
             logger.info('cl: %r body: %r', self._content_len, self._body)
-        data = self.sock.recv(INCOMING_BUFFER_SIZE)
+        try:
+            data = self.sock.recv(INCOMING_BUFFER_SIZE)
+        except socket.sslerror, e:
+            if e.args[0] != socket.SSL_ERROR_WANT_READ:
+                raise
+            logger.debug('SSL_WANT_READ in _select, should retry later')
+            return True
         logger.debug('response read %d data during _select', len(data))
         if not data:
             if not self.headers:
                 self._load_response(self._end_headers)
                 self._content_len = 0
             elif self._content_len == _LEN_CLOSE_IS_END:
                 self._content_len = len(self._body)
             return False
         else:
             self._load_response(data)
             return True
 
     def _chunked_parsedata(self, data):
         if self._chunked_preloaded_block:
             data = self._chunked_preloaded_block + data
             self._chunked_preloaded_block = None
         while data:
             logger.debug('looping with %d data remaining', len(data))
             # Slice out anything we should skip
             if self._chunked_skip_bytes:
                 if len(data) <= self._chunked_skip_bytes:
                     self._chunked_skip_bytes -= len(data)
                     data = ''
                     break
                 else:
                     data = data[self._chunked_skip_bytes:]
                     self._chunked_skip_bytes = 0
 
             # determine how much is until the next chunk
             if self._chunked_until_next:
                 amt = self._chunked_until_next
                 logger.debug('reading remaining %d of existing chunk', amt)
                 self._chunked_until_next = 0
                 body = data
             else:
                 try:
                     amt, body = data.split(self._eol, 1)
                 except ValueError:
                     self._chunked_preloaded_block = data
                     logger.debug('saving %r as a preloaded block for chunked',
                                  self._chunked_preloaded_block)
                     return
                 amt = int(amt, base=16)
                 logger.debug('reading chunk of length %d', amt)
                 if amt == 0:
                     self._chunked_done = True
 
             # read through end of what we have or the chunk
             self._body += body[:amt]
             if len(body) >= amt:
                 data = body[amt:]
                 self._chunked_skip_bytes = len(self._eol)
             else:
                 self._chunked_until_next = amt - len(body)
                 self._chunked_skip_bytes = 0
                 data = ''
 
     def _load_response(self, data):
         if self._chunked:
             self._chunked_parsedata(data)
             return
         elif self._body is not None:
             self._body += data
             return
 
         # We haven't seen end of headers yet
         self.raw_response += data
         # This is a bogus server with bad line endings
         if self._eol not in self.raw_response:
             for bad_eol in ('\n', '\r'):
                 if (bad_eol in self.raw_response
                     # verify that bad_eol is not the end of the incoming data
                     # as this could be a response line that just got
                     # split between \r and \n.
                     and (self.raw_response.index(bad_eol) <
                          (len(self.raw_response) - 1))):
                     logger.info('bogus line endings detected, '
                                 'using %r for EOL', bad_eol)
                     self._eol = bad_eol
                     break
         # exit early if not at end of headers
         if self._end_headers not in self.raw_response or self.headers:
             return
 
         # handle 100-continue response
         hdrs, body = self.raw_response.split(self._end_headers, 1)
         http_ver, status = hdrs.split(' ', 1)
         if status.startswith('100'):
             self.raw_response = body
             logger.debug('continue seen, setting body to %r', body)
             return
 
         # arriving here means we should parse response headers
         # as all headers have arrived completely
         hdrs, body = self.raw_response.split(self._end_headers, 1)
         del self.raw_response
         if self._eol in hdrs:
             self.status_line, hdrs = hdrs.split(self._eol, 1)
         else:
             self.status_line = hdrs
             hdrs = ''
         # TODO HTTP < 1.0 support
         (self.http_version, self.status,
          self.reason) = self.status_line.split(' ', 2)
         self.status = int(self.status)
         if self._eol != EOL:
             hdrs = hdrs.replace(self._eol, '\r\n')
         headers = rfc822.Message(cStringIO.StringIO(hdrs))
         if HDR_CONTENT_LENGTH in headers:
             self._content_len = int(headers[HDR_CONTENT_LENGTH])
         if self.http_version == HTTP_VER_1_0:
             self.will_close = True
         elif HDR_CONNECTION_CTRL in headers:
             self.will_close = (
                 headers[HDR_CONNECTION_CTRL].lower() == CONNECTION_CLOSE)
             if self._content_len == 0:
                 self._content_len = _LEN_CLOSE_IS_END
         if (HDR_XFER_ENCODING in headers
             and headers[HDR_XFER_ENCODING].lower() == XFER_ENCODING_CHUNKED):
             self._body = ''
             self._chunked_parsedata(body)
             self._chunked = True
         if self._body is None:
             self._body = body
         self.headers = headers
 
 
 class HTTPConnection(object):
     """Connection to a single http server.
 
     Supports 100-continue and keepalives natively. Uses select() for
     non-blocking socket operations.
     """
     http_version = HTTP_VER_1_1
     response_class = HTTPResponse
 
     def __init__(self, host, port=None, use_ssl=None, ssl_validator=None,
                  timeout=TIMEOUT_DEFAULT,
                  continue_timeout=TIMEOUT_ASSUME_CONTINUE,
                  proxy_hostport=None, **ssl_opts):
         """Create a new HTTPConnection.
 
         Args:
           host: The host to which we'll connect.
           port: Optional. The port over which we'll connect. Default 80 for
                 non-ssl, 443 for ssl.
           use_ssl: Optional. Wether to use ssl. Defaults to False if port is
                    not 443, true if port is 443.
           ssl_validator: a function(socket) to validate the ssl cert
           timeout: Optional. Connection timeout, default is TIMEOUT_DEFAULT.
           continue_timeout: Optional. Timeout for waiting on an expected
                    "100 Continue" response. Default is TIMEOUT_ASSUME_CONTINUE.
           proxy_hostport: Optional. Tuple of (host, port) to use as an http
                        proxy for the connection. Default is to not use a proxy.
         """
         if port is None and host.count(':') == 1 or ']:' in host:
             host, port = host.rsplit(':', 1)
             port = int(port)
             if '[' in host:
                 host = host[1:-1]
         if use_ssl is None and port is None:
             use_ssl = False
             port = 80
         elif use_ssl is None:
             use_ssl = (port == 443)
         elif port is None:
             port = (use_ssl and 443 or 80)
         self.port = port
         if use_ssl and not socketutil.have_ssl:
             raise Exception('ssl requested but unavailable on this Python')
         self.ssl = use_ssl
         self.ssl_opts = ssl_opts
         self._ssl_validator = ssl_validator
         self.host = host
         self.sock = None
         self._current_response = None
         self._current_response_taken = False
         if proxy_hostport is None:
             self._proxy_host = self._proxy_port = None
         else:
             self._proxy_host, self._proxy_port = proxy_hostport
 
         self.timeout = timeout
         self.continue_timeout = continue_timeout
 
     def _connect(self):
         """Connect to the host and port specified in __init__."""
         if self.sock:
             return
         if self._proxy_host is not None:
             logger.info('Connecting to http proxy %s:%s',
                         self._proxy_host, self._proxy_port)
             sock = socketutil.create_connection((self._proxy_host,
                                                  self._proxy_port))
             if self.ssl:
                 # TODO proxy header support
                 data = self.buildheaders('CONNECT', '%s:%d' % (self.host,
                                                                self.port),
                                          {}, HTTP_VER_1_0)
                 sock.send(data)
                 sock.setblocking(0)
                 r = self.response_class(sock, self.timeout)
                 timeout_exc = HTTPTimeoutException(
                     'Timed out waiting for CONNECT response from proxy')
                 while not r.complete():
                     try:
                         if not r._select():
                             raise timeout_exc
                     except HTTPTimeoutException:
                         # This raise/except pattern looks goofy, but
                         # _select can raise the timeout as well as the
                         # loop body. I wish it wasn't this convoluted,
                         # but I don't have a better solution
                         # immediately handy.
                         raise timeout_exc
                 if r.status != 200:
                     raise HTTPProxyConnectFailedException(
                         'Proxy connection failed: %d %s' % (r.status,
                                                             r.read()))
                 logger.info('CONNECT (for SSL) to %s:%s via proxy succeeded.',
                             self.host, self.port)
         else:
             sock = socketutil.create_connection((self.host, self.port))
         if self.ssl:
             logger.debug('wrapping socket for ssl with options %r',
                          self.ssl_opts)
             sock = socketutil.wrap_socket(sock, **self.ssl_opts)
             if self._ssl_validator:
                 self._ssl_validator(sock)
         sock.setblocking(0)
         self.sock = sock
 
     def buildheaders(self, method, path, headers, http_ver):
         if self.ssl and self.port == 443 or self.port == 80:
             # default port for protocol, so leave it out
             hdrhost = self.host
         else:
             # include nonstandard port in header
             if ':' in self.host:  # must be IPv6
                 hdrhost = '[%s]:%d' % (self.host, self.port)
             else:
                 hdrhost = '%s:%d' % (self.host, self.port)
         if self._proxy_host and not self.ssl:
             # When talking to a regular http proxy we must send the
             # full URI, but in all other cases we must not (although
             # technically RFC 2616 says servers must accept our
             # request if we screw up, experimentally few do that
             # correctly.)
             assert path[0] == '/', 'path must start with a /'
             path = 'http://%s%s' % (hdrhost, path)
         outgoing = ['%s %s %s%s' % (method, path, http_ver, EOL)]
         headers['host'] = ('Host', hdrhost)
         headers[HDR_ACCEPT_ENCODING] = (HDR_ACCEPT_ENCODING, 'identity')
         for hdr, val in headers.itervalues():
             outgoing.append('%s: %s%s' % (hdr, val, EOL))
         outgoing.append(EOL)
         return ''.join(outgoing)
 
     def close(self):
         """Close the connection to the server.
 
         This is a no-op if the connection is already closed. The
         connection may automatically close if requessted by the server
         or required by the nature of a response.
         """
         if self.sock is None:
             return
         self.sock.close()
         self.sock = None
         logger.info('closed connection to %s on %s', self.host, self.port)
 
     def busy(self):
         """Returns True if this connection object is currently in use.
 
         If a response is still pending, this will return True, even if
         the request has finished sending. In the future,
         HTTPConnection may transparently juggle multiple connections
         to the server, in which case this will be useful to detect if
         any of those connections is ready for use.
         """
         cr = self._current_response
         if cr is not None:
             if self._current_response_taken:
                 if cr.will_close:
                     self.sock = None
                     self._current_response = None
                     return False
                 elif cr.complete():
                     self._current_response = None
                     return False
             return True
         return False
 
     def request(self, method, path, body=None, headers={},
                 expect_continue=False):
         """Send a request to the server.
 
         For increased flexibility, this does not return the response
         object. Future versions of HTTPConnection that juggle multiple
         sockets will be able to send (for example) 5 requests all at
         once, and then let the requests arrive as data is
         available. Use the `getresponse()` method to retrieve the
         response.
         """
         if self.busy():
             raise httplib.CannotSendRequest(
                 'Can not send another request before '
                 'current response is read!')
         self._current_response_taken = False
 
         logger.info('sending %s request for %s to %s on port %s',
                     method, path, self.host, self.port)
         hdrs = dict((k.lower(), (k, v)) for k, v in headers.iteritems())
         if hdrs.get('expect', ('', ''))[1].lower() == '100-continue':
             expect_continue = True
         elif expect_continue:
             hdrs['expect'] = ('Expect', '100-Continue')
 
         chunked = False
         if body and HDR_CONTENT_LENGTH not in hdrs:
             if getattr(body, '__len__', False):
                 hdrs[HDR_CONTENT_LENGTH] = (HDR_CONTENT_LENGTH, len(body))
             elif getattr(body, 'read', False):
                 hdrs[HDR_XFER_ENCODING] = (HDR_XFER_ENCODING,
                                            XFER_ENCODING_CHUNKED)
                 chunked = True
             else:
                 raise BadRequestData('body has no __len__() nor read()')
 
         self._connect()
         outgoing_headers = self.buildheaders(
             method, path, hdrs, self.http_version)
         response = None
         first = True
 
         def reconnect(where):
             logger.info('reconnecting during %s', where)
             self.close()
             self._connect()
 
         while ((outgoing_headers or body)
                and not (response and response.complete())):
             select_timeout = self.timeout
             out = outgoing_headers or body
             blocking_on_continue = False
             if expect_continue and not outgoing_headers and not (
                 response and response.headers):
                 logger.info(
                     'waiting up to %s seconds for'
                     ' continue response from server',
                     self.continue_timeout)
                 select_timeout = self.continue_timeout
                 blocking_on_continue = True
                 out = False
             if out:
                 w = [self.sock]
             else:
                 w = []
             r, w, x = select.select([self.sock], w, [], select_timeout)
             # if we were expecting a 100 continue and it's been long
             # enough, just go ahead and assume it's ok. This is the
             # recommended behavior from the RFC.
             if r == w == x == []:
                 if blocking_on_continue:
                     expect_continue = False
                     logger.info('no response to continue expectation from '
                                 'server, optimistically sending request body')
                 else:
                     raise HTTPTimeoutException('timeout sending data')
             # TODO exceptional conditions with select? (what are those be?)
             # TODO if the response is loading, must we finish sending at all?
             #
             # Certainly not if it's going to close the connection and/or
             # the response is already done...I think.
             was_first = first
 
             # incoming data
             if r:
                 try:
-                    data = r[0].recv(INCOMING_BUFFER_SIZE)
+                    try:
+                        data = r[0].recv(INCOMING_BUFFER_SIZE)
+                    except socket.sslerror, e:
+                        if e.args[0] != socket.SSL_ERROR_WANT_READ:
+                            raise
+                        logger.debug(
+                            'SSL_WANT_READ while sending data, retrying...')
+                        continue
                     if not data:
                         logger.info('socket appears closed in read')
                         outgoing_headers = body = None
                         break
                     if response is None:
                         response = self.response_class(r[0], self.timeout)
                     response._load_response(data)
                     if (response._content_len == _LEN_CLOSE_IS_END
                         and len(data) == 0):
                         response._content_len = len(response._body)
                     if response.complete():
                         w = []
                         response.will_close = True
                 except socket.error, e:
                     if e[0] != errno.EPIPE and not was_first:
                         raise
                     if (response._content_len
                         and response._content_len != _LEN_CLOSE_IS_END):
                         outgoing_headers = sent_data + outgoing_headers
                         reconnect('read')
 
             # outgoing data
             if w and out:
                 try:
                     if getattr(out, 'read', False):
                         data = out.read(OUTGOING_BUFFER_SIZE)
                         if not data:
                             continue
                         if len(data) < OUTGOING_BUFFER_SIZE:
                             if chunked:
                                 body = '0' + EOL + EOL
                             else:
                                 body = None
                         if chunked:
                             out = hex(len(data))[2:] + EOL + data + EOL
                         else:
                             out = data
                     amt = w[0].send(out)
                 except socket.error, e:
                     if e[0] == socket.SSL_ERROR_WANT_WRITE and self.ssl:
                         # This means that SSL hasn't flushed its buffer into
                         # the socket yet.
                         # TODO: find a way to block on ssl flushing its buffer
                         # similar to selecting on a raw socket.
                         continue
                     elif (e[0] not in (errno.ECONNRESET, errno.EPIPE)
                           and not first):
                         raise
                     reconnect('write')
                     amt = self.sock.send(out)
                 logger.debug('sent %d', amt)
                 first = False
                 # stash data we think we sent in case the socket breaks
                 # when we read from it
                 if was_first:
                     sent_data = out[:amt]
                 if out is body:
                     body = out[amt:]
                 else:
                     outgoing_headers = out[amt:]
 
         # close if the server response said to or responded before eating
         # the whole request
         if response is None:
             response = self.response_class(self.sock, self.timeout)
         complete = response.complete()
         data_left = bool(outgoing_headers or body)
         if data_left:
             logger.info('stopped sending request early, '
                          'will close the socket to be safe.')
             response.will_close = True
         if response.will_close:
             # The socket will be closed by the response, so we disown
             # the socket
             self.sock = None
         self._current_response = response
 
     def getresponse(self):
         if self._current_response is None:
             raise httplib.ResponseNotReady()
         r = self._current_response
         while r.headers is None:
             r._select()
         if r.will_close:
             self.sock = None
             self._current_response = None
         elif r.complete():
             self._current_response = None
         else:
             self._current_response_taken = True
         return r
 
 
 class HTTPTimeoutException(httplib.HTTPException):
     """A timeout occurred while waiting on the server."""
 
 
 class BadRequestData(httplib.HTTPException):
     """Request body object has neither __len__ nor read."""
 
 
 class HTTPProxyConnectFailedException(httplib.HTTPException):
     """Connecting to the HTTP proxy failed."""
 # no-check-code

mercurial/httpclient/tests/simple_http_test.py

@@ -1,369 +1,356
 # 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 unittest
 
 import http
 
 # relative import to ease embedding the library
 import util
 
 
 class SimpleHttpTest(util.HttpTestBase, unittest.TestCase):
 
     def _run_simple_test(self, host, server_data, expected_req, expected_data):
         con = http.HTTPConnection(host)
         con._connect()
-        con.sock.data = server_data
+        con.sock.data.extend(server_data)
         con.request('GET', '/')
 
         self.assertStringEqual(expected_req, con.sock.sent)
         self.assertEqual(expected_data, con.getresponse().read())
 
     def test_broken_data_obj(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         self.assertRaises(http.BadRequestData,
                           con.request, 'POST', '/', body=1)
 
     def test_no_keepalive_http_1_0(self):
         expected_request_one = """GET /remote/.hg/requires HTTP/1.1
 Host: localhost:9999
 range: bytes=0-
 accept-encoding: identity
 accept: application/mercurial-0.1
 user-agent: mercurial/proto-1.0
 
 """.replace('\n', '\r\n')
         expected_response_headers = """HTTP/1.0 200 OK
 Server: SimpleHTTP/0.6 Python/2.6.1
 Date: Sun, 01 May 2011 13:56:57 GMT
 Content-type: application/octet-stream
 Content-Length: 33
 Last-Modified: Sun, 01 May 2011 13:56:56 GMT
 
 """.replace('\n', '\r\n')
         expected_response_body = """revlogv1
 store
 fncache
 dotencode
 """
         con = http.HTTPConnection('localhost:9999')
         con._connect()
         con.sock.data = [expected_response_headers, expected_response_body]
         con.request('GET', '/remote/.hg/requires',
                     headers={'accept-encoding': 'identity',
                              'range': 'bytes=0-',
                              'accept': 'application/mercurial-0.1',
                              'user-agent': 'mercurial/proto-1.0',
                              })
         self.assertStringEqual(expected_request_one, con.sock.sent)
         self.assertEqual(con.sock.closed, False)
         self.assertNotEqual(con.sock.data, [])
         self.assert_(con.busy())
         resp = con.getresponse()
         self.assertStringEqual(resp.read(), expected_response_body)
         self.failIf(con.busy())
         self.assertEqual(con.sock, None)
         self.assertEqual(resp.sock.data, [])
         self.assert_(resp.sock.closed)
 
     def test_multiline_header(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         con.sock.data = ['HTTP/1.1 200 OK\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'Multiline: Value\r\n',
                          '  Rest of value\r\n',
                          'Content-Length: 10\r\n',
                          '\r\n'
                          '1234567890'
                          ]
         con.request('GET', '/')
 
         expected_req = ('GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('1.2.3.4', 80), con.sock.sa)
         self.assertEqual(expected_req, con.sock.sent)
         resp = con.getresponse()
         self.assertEqual('1234567890', resp.read())
         self.assertEqual(['Value\n Rest of value'],
                          resp.headers.getheaders('multiline'))
         # Socket should not be closed
         self.assertEqual(resp.sock.closed, False)
         self.assertEqual(con.sock.closed, False)
 
     def testSimpleRequest(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         con.sock.data = ['HTTP/1.1 200 OK\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'MultiHeader: Value\r\n'
                          'MultiHeader: Other Value\r\n'
                          'MultiHeader: One More!\r\n'
                          'Content-Length: 10\r\n',
                          '\r\n'
                          '1234567890'
                          ]
         con.request('GET', '/')
 
         expected_req = ('GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('1.2.3.4', 80), con.sock.sa)
         self.assertEqual(expected_req, con.sock.sent)
         resp = con.getresponse()
         self.assertEqual('1234567890', resp.read())
         self.assertEqual(['Value', 'Other Value', 'One More!'],
                          resp.headers.getheaders('multiheader'))
         self.assertEqual(['BogusServer 1.0'],
                          resp.headers.getheaders('server'))
 
     def testHeaderlessResponse(self):
         con = http.HTTPConnection('1.2.3.4', use_ssl=False)
         con._connect()
         con.sock.data = ['HTTP/1.1 200 OK\r\n',
                          '\r\n'
                          '1234567890'
                          ]
         con.request('GET', '/')
 
         expected_req = ('GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('1.2.3.4', 80), con.sock.sa)
         self.assertEqual(expected_req, con.sock.sent)
         resp = con.getresponse()
         self.assertEqual('1234567890', resp.read())
         self.assertEqual({}, dict(resp.headers))
         self.assertEqual(resp.status, 200)
 
     def testReadline(self):
         con = http.HTTPConnection('1.2.3.4')
         con._connect()
         # make sure it trickles in one byte at a time
         # so that we touch all the cases in readline
         con.sock.data = list(''.join(
             ['HTTP/1.1 200 OK\r\n',
              'Server: BogusServer 1.0\r\n',
              'Connection: Close\r\n',
              '\r\n'
              '1\n2\nabcdefg\n4\n5']))
 
         expected_req = ('GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         con.request('GET', '/')
         self.assertEqual(('1.2.3.4', 80), con.sock.sa)
         self.assertEqual(expected_req, con.sock.sent)
         r = con.getresponse()
         for expected in ['1\n', '2\n', 'abcdefg\n', '4\n', '5']:
             actual = r.readline()
             self.assertEqual(expected, actual,
                              'Expected %r, got %r' % (expected, actual))
 
     def testIPv6(self):
         self._run_simple_test('[::1]:8221',
                         ['HTTP/1.1 200 OK\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'Content-Length: 10',
                          '\r\n\r\n'
                          '1234567890'],
                         ('GET / HTTP/1.1\r\n'
                          'Host: [::1]:8221\r\n'
                          'accept-encoding: identity\r\n\r\n'),
                         '1234567890')
         self._run_simple_test('::2',
                         ['HTTP/1.1 200 OK\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'Content-Length: 10',
                          '\r\n\r\n'
                          '1234567890'],
                         ('GET / HTTP/1.1\r\n'
                          'Host: ::2\r\n'
                          'accept-encoding: identity\r\n\r\n'),
                         '1234567890')
         self._run_simple_test('[::3]:443',
                         ['HTTP/1.1 200 OK\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'Content-Length: 10',
                          '\r\n\r\n'
                          '1234567890'],
                         ('GET / HTTP/1.1\r\n'
                          'Host: ::3\r\n'
                          'accept-encoding: identity\r\n\r\n'),
                         '1234567890')
 
-    def doPost(self, con, expect_body, body_to_send='This is some POST data'):
-        con.request('POST', '/', body=body_to_send,
-                    expect_continue=True)
-        expected_req = ('POST / HTTP/1.1\r\n'
-                        'Host: 1.2.3.4\r\n'
-                        'content-length: %d\r\n'
-                        'Expect: 100-Continue\r\n'
-                        'accept-encoding: identity\r\n\r\n' %
-                        len(body_to_send))
-        if expect_body:
-            expected_req += body_to_send
-        return expected_req
-
     def testEarlyContinueResponse(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         sock = con.sock
         sock.data = ['HTTP/1.1 403 Forbidden\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'Content-Length: 18',
                          '\r\n\r\n'
                          "You can't do that."]
         expected_req = self.doPost(con, expect_body=False)
         self.assertEqual(('1.2.3.4', 80), sock.sa)
         self.assertStringEqual(expected_req, sock.sent)
         self.assertEqual("You can't do that.", con.getresponse().read())
         self.assertEqual(sock.closed, True)
 
     def testDeniedAfterContinueTimeoutExpires(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         sock = con.sock
         sock.data = ['HTTP/1.1 403 Forbidden\r\n',
                      'Server: BogusServer 1.0\r\n',
                      'Content-Length: 18\r\n',
                      'Connection: close',
                      '\r\n\r\n'
                      "You can't do that."]
         sock.read_wait_sentinel = 'Dear server, send response!'
         sock.close_on_empty = True
         # send enough data out that we'll chunk it into multiple
         # blocks and the socket will close before we can send the
         # whole request.
         post_body = ('This is some POST data\n' * 1024 * 32 +
                      'Dear server, send response!\n' +
                      'This is some POST data\n' * 1024 * 32)
         expected_req = self.doPost(con, expect_body=False,
                                    body_to_send=post_body)
         self.assertEqual(('1.2.3.4', 80), sock.sa)
         self.assert_('POST data\n' in sock.sent)
         self.assert_('Dear server, send response!\n' in sock.sent)
         # We expect not all of our data was sent.
         self.assertNotEqual(sock.sent, expected_req)
         self.assertEqual("You can't do that.", con.getresponse().read())
         self.assertEqual(sock.closed, True)
 
     def testPostData(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         sock = con.sock
         sock.read_wait_sentinel = 'POST data'
         sock.early_data = ['HTTP/1.1 100 Co', 'ntinue\r\n\r\n']
         sock.data = ['HTTP/1.1 200 OK\r\n',
                      'Server: BogusServer 1.0\r\n',
                      'Content-Length: 16',
                      '\r\n\r\n',
                      "You can do that."]
         expected_req = self.doPost(con, expect_body=True)
         self.assertEqual(('1.2.3.4', 80), sock.sa)
         self.assertEqual(expected_req, sock.sent)
         self.assertEqual("You can do that.", con.getresponse().read())
         self.assertEqual(sock.closed, False)
 
     def testServerWithoutContinue(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         sock = con.sock
         sock.read_wait_sentinel = 'POST data'
         sock.data = ['HTTP/1.1 200 OK\r\n',
                      'Server: BogusServer 1.0\r\n',
                      'Content-Length: 16',
                      '\r\n\r\n',
                      "You can do that."]
         expected_req = self.doPost(con, expect_body=True)
         self.assertEqual(('1.2.3.4', 80), sock.sa)
         self.assertEqual(expected_req, sock.sent)
         self.assertEqual("You can do that.", con.getresponse().read())
         self.assertEqual(sock.closed, False)
 
     def testServerWithSlowContinue(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         sock = con.sock
         sock.read_wait_sentinel = 'POST data'
         sock.data = ['HTTP/1.1 100 ', 'Continue\r\n\r\n',
                      'HTTP/1.1 200 OK\r\n',
                      'Server: BogusServer 1.0\r\n',
                      'Content-Length: 16',
                      '\r\n\r\n',
                      "You can do that."]
         expected_req = self.doPost(con, expect_body=True)
         self.assertEqual(('1.2.3.4', 80), sock.sa)
         self.assertEqual(expected_req, sock.sent)
         resp = con.getresponse()
         self.assertEqual("You can do that.", resp.read())
         self.assertEqual(200, resp.status)
         self.assertEqual(sock.closed, False)
 
     def testSlowConnection(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         # simulate one byte arriving at a time, to check for various
         # corner cases
         con.sock.data = list('HTTP/1.1 200 OK\r\n'
                              'Server: BogusServer 1.0\r\n'
                              'Content-Length: 10'
                              '\r\n\r\n'
                              '1234567890')
         con.request('GET', '/')
 
         expected_req = ('GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('1.2.3.4', 80), con.sock.sa)
         self.assertEqual(expected_req, con.sock.sent)
         self.assertEqual('1234567890', con.getresponse().read())
 
     def testTimeout(self):
         con = http.HTTPConnection('1.2.3.4:80')
         con._connect()
         con.sock.data = []
         con.request('GET', '/')
         self.assertRaises(http.HTTPTimeoutException,
                           con.getresponse)
 
         expected_req = ('GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('1.2.3.4', 80), con.sock.sa)
         self.assertEqual(expected_req, con.sock.sent)
 # no-check-code

mercurial/httpclient/tests/test_proxy_support.py

@@ -1,132 +1,132
 # 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 unittest
 import socket
 
 import http
 
 # relative import to ease embedding the library
 import util
 
 
 def make_preloaded_socket(data):
     """Make a socket pre-loaded with data so it can be read during connect.
 
     Useful for https proxy tests because we have to read from the
     socket during _connect rather than later on.
     """
     def s(*args, **kwargs):
         sock = util.MockSocket(*args, **kwargs)
         sock.data = data[:]
         return sock
     return s
 
 
 class ProxyHttpTest(util.HttpTestBase, unittest.TestCase):
 
     def _run_simple_test(self, host, server_data, expected_req, expected_data):
         con = http.HTTPConnection(host)
         con._connect()
         con.sock.data = server_data
         con.request('GET', '/')
 
         self.assertEqual(expected_req, con.sock.sent)
         self.assertEqual(expected_data, con.getresponse().read())
 
     def testSimpleRequest(self):
         con = http.HTTPConnection('1.2.3.4:80',
                                   proxy_hostport=('magicproxy', 4242))
         con._connect()
         con.sock.data = ['HTTP/1.1 200 OK\r\n',
                          'Server: BogusServer 1.0\r\n',
                          'MultiHeader: Value\r\n'
                          'MultiHeader: Other Value\r\n'
                          'MultiHeader: One More!\r\n'
                          'Content-Length: 10\r\n',
                          '\r\n'
                          '1234567890'
                          ]
         con.request('GET', '/')
 
         expected_req = ('GET http://1.2.3.4/ HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('127.0.0.42', 4242), con.sock.sa)
         self.assertStringEqual(expected_req, con.sock.sent)
         resp = con.getresponse()
         self.assertEqual('1234567890', resp.read())
         self.assertEqual(['Value', 'Other Value', 'One More!'],
                          resp.headers.getheaders('multiheader'))
         self.assertEqual(['BogusServer 1.0'],
                          resp.headers.getheaders('server'))
 
     def testSSLRequest(self):
         con = http.HTTPConnection('1.2.3.4:443',
                                   proxy_hostport=('magicproxy', 4242))
         socket.socket = make_preloaded_socket(
             ['HTTP/1.1 200 OK\r\n',
              'Server: BogusServer 1.0\r\n',
              'Content-Length: 10\r\n',
              '\r\n'
              '1234567890'])
         con._connect()
-        con.sock.data = ['HTTP/1.1 200 OK\r\n',
-                         'Server: BogusServer 1.0\r\n',
-                         'Content-Length: 10\r\n',
-                         '\r\n'
-                         '1234567890'
-                         ]
+        con.sock.data.extend(['HTTP/1.1 200 OK\r\n',
+                              'Server: BogusServer 1.0\r\n',
+                              'Content-Length: 10\r\n',
+                              '\r\n'
+                              '1234567890'
+                              ])
         con.request('GET', '/')
 
         expected_req = ('CONNECT 1.2.3.4:443 HTTP/1.0\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n'
                         '\r\n'
                         'GET / HTTP/1.1\r\n'
                         'Host: 1.2.3.4\r\n'
                         'accept-encoding: identity\r\n\r\n')
 
         self.assertEqual(('127.0.0.42', 4242), con.sock.sa)
         self.assertStringEqual(expected_req, con.sock.sent)
         resp = con.getresponse()
         self.assertEqual(resp.status, 200)
         self.assertEqual('1234567890', resp.read())
         self.assertEqual(['BogusServer 1.0'],
                          resp.headers.getheaders('server'))
 
     def testSSLProxyFailure(self):
         con = http.HTTPConnection('1.2.3.4:443',
                                   proxy_hostport=('magicproxy', 4242))
         socket.socket = make_preloaded_socket(
             ['HTTP/1.1 407 Proxy Authentication Required\r\n\r\n'])
         self.assertRaises(http.HTTPProxyConnectFailedException, con._connect)
         self.assertRaises(http.HTTPProxyConnectFailedException,
                           con.request, 'GET', '/')
 # no-check-code

mercurial/httpclient/tests/util.py

@@ -1,160 +1,190
 # 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 difflib
 import socket
 
 import http
 
 
 class MockSocket(object):
     """Mock non-blocking socket object.
 
     This is ONLY capable of mocking a nonblocking socket.
 
     Attributes:
       early_data: data to always send as soon as end of headers is seen
       data: a list of strings to return on recv(), with the
             assumption that the socket would block between each
             string in the list.
       read_wait_sentinel: data that must be written to the socket before
                           beginning the response.
       close_on_empty: If true, close the socket when it runs out of data
                       for the client.
     """
     def __init__(self, af, socktype, proto):
         self.af = af
         self.socktype = socktype
         self.proto = proto
 
         self.early_data = []
         self.data = []
         self.remote_closed = self.closed = False
         self.close_on_empty = False
         self.sent = ''
         self.read_wait_sentinel = http._END_HEADERS
 
     def close(self):
         self.closed = True
 
     def connect(self, sa):
         self.sa = sa
 
     def setblocking(self, timeout):
         assert timeout == 0
 
     def recv(self, amt=-1):
         if self.early_data:
             datalist = self.early_data
         elif not self.data:
             return ''
         else:
             datalist = self.data
         if amt == -1:
             return datalist.pop(0)
         data = datalist.pop(0)
         if len(data) > amt:
             datalist.insert(0, data[amt:])
         if not self.data and not self.early_data and self.close_on_empty:
             self.remote_closed = True
         return data[:amt]
 
     @property
     def ready_for_read(self):
         return ((self.early_data and http._END_HEADERS in self.sent)
                 or (self.read_wait_sentinel in self.sent and self.data)
                 or self.closed)
 
     def send(self, data):
         # this is a horrible mock, but nothing needs us to raise the
         # correct exception yet
         assert not self.closed, 'attempted to write to a closed socket'
         assert not self.remote_closed, ('attempted to write to a'
                                         ' socket closed by the server')
         if len(data) > 8192:
             data = data[:8192]
         self.sent += data
         return len(data)
 
 
 def mockselect(r, w, x, timeout=0):
     """Simple mock for select()
     """
     readable = filter(lambda s: s.ready_for_read, r)
     return readable, w[:], []
 
 
+class MockSSLSocket(object):
+    def __init__(self, sock):
+        self._sock = sock
+        self._fail_recv = True
+
+    def __getattr__(self, key):
+        return getattr(self._sock, key)
+
+    def recv(self, amt=-1):
+        try:
+            if self._fail_recv:
+                raise socket.sslerror(socket.SSL_ERROR_WANT_READ)
+            return self._sock.recv(amt=amt)
+        finally:
+            self._fail_recv = not self._fail_recv
+
+
 def mocksslwrap(sock, keyfile=None, certfile=None,
                 server_side=False, cert_reqs=http.socketutil.CERT_NONE,
                 ssl_version=http.socketutil.PROTOCOL_SSLv23, ca_certs=None,
                 do_handshake_on_connect=True,
                 suppress_ragged_eofs=True):
-    return sock
+    return MockSSLSocket(sock)
 
 
 def mockgetaddrinfo(host, port, unused, streamtype):
     assert unused == 0
     assert streamtype == socket.SOCK_STREAM
     if host.count('.') != 3:
         host = '127.0.0.42'
     return [(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, '',
              (host, port))]
 
 
 class HttpTestBase(object):
     def setUp(self):
         self.orig_socket = socket.socket
         socket.socket = MockSocket
 
         self.orig_getaddrinfo = socket.getaddrinfo
         socket.getaddrinfo = mockgetaddrinfo
 
         self.orig_select = http.select.select
         http.select.select = mockselect
 
         self.orig_sslwrap = http.socketutil.wrap_socket
         http.socketutil.wrap_socket = mocksslwrap
 
     def tearDown(self):
         socket.socket = self.orig_socket
         http.select.select = self.orig_select
         http.socketutil.wrap_socket = self.orig_sslwrap
         socket.getaddrinfo = self.orig_getaddrinfo
 
     def assertStringEqual(self, l, r):
         try:
             self.assertEqual(l, r, ('failed string equality check, '
                                     'see stdout for details'))
         except:
             add_nl = lambda li: map(lambda x: x + '\n', li)
             print 'failed expectation:'
             print ''.join(difflib.unified_diff(
                 add_nl(l.splitlines()), add_nl(r.splitlines()),
                 fromfile='expected', tofile='got'))
             raise
+
+    def doPost(self, con, expect_body, body_to_send='This is some POST data'):
+        con.request('POST', '/', body=body_to_send,
+                    expect_continue=True)
+        expected_req = ('POST / HTTP/1.1\r\n'
+                        'Host: 1.2.3.4\r\n'
+                        'content-length: %d\r\n'
+                        'Expect: 100-Continue\r\n'
+                        'accept-encoding: identity\r\n\r\n' %
+                        len(body_to_send))
+        if expect_body:
+            expected_req += body_to_send
+        return expected_req
 # no-check-code