Delete swarm_client.

swarm_client/third_party/requests/packages/urllib3/contrib/pyopenssl.py

Index: swarm_client/third_party/requests/packages/urllib3/contrib/pyopenssl.py
===================================================================
--- swarm_client/third_party/requests/packages/urllib3/contrib/pyopenssl.py	(revision 235167)
+++ swarm_client/third_party/requests/packages/urllib3/contrib/pyopenssl.py	(working copy)
@@ -1,344 +0,0 @@
-'''SSL with SNI-support for Python 2.
-
-This needs the following packages installed:
-
-* pyOpenSSL (tested with 0.13)
-* ndg-httpsclient (tested with 0.3.2)
-* pyasn1 (tested with 0.1.6)
-
-To activate it call :func:`~urllib3.contrib.pyopenssl.inject_into_urllib3`.
-This can be done in a ``sitecustomize`` module, or at any other time before
-your application begins using ``urllib3``, like this::
-
-    try:
-        import urllib3.contrib.pyopenssl
-        urllib3.contrib.pyopenssl.inject_into_urllib3()
-    except ImportError:
-        pass
-
-Now you can use :mod:`urllib3` as you normally would, and it will support SNI
-when the required modules are installed.
-'''
-
-from ndg.httpsclient.ssl_peer_verification import SUBJ_ALT_NAME_SUPPORT
-from ndg.httpsclient.subj_alt_name import SubjectAltName
-import OpenSSL.SSL
-from pyasn1.codec.der import decoder as der_decoder
-from socket import _fileobject
-import ssl
-from cStringIO import StringIO
-
-from .. import connectionpool
-from .. import util
-
-__all__ = ['inject_into_urllib3', 'extract_from_urllib3']
-
-# SNI only *really* works if we can read the subjectAltName of certificates.
-HAS_SNI = SUBJ_ALT_NAME_SUPPORT
-
-# Map from urllib3 to PyOpenSSL compatible parameter-values.
-_openssl_versions = {
-    ssl.PROTOCOL_SSLv23: OpenSSL.SSL.SSLv23_METHOD,
-    ssl.PROTOCOL_SSLv3: OpenSSL.SSL.SSLv3_METHOD,
-    ssl.PROTOCOL_TLSv1: OpenSSL.SSL.TLSv1_METHOD,
-}
-_openssl_verify = {
-    ssl.CERT_NONE: OpenSSL.SSL.VERIFY_NONE,
-    ssl.CERT_OPTIONAL: OpenSSL.SSL.VERIFY_PEER,
-    ssl.CERT_REQUIRED: OpenSSL.SSL.VERIFY_PEER
-                       + OpenSSL.SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
-}
-
-
-orig_util_HAS_SNI = util.HAS_SNI
-orig_connectionpool_ssl_wrap_socket = connectionpool.ssl_wrap_socket
-
-
-def inject_into_urllib3():
-    'Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.'
-
-    connectionpool.ssl_wrap_socket = ssl_wrap_socket
-    util.HAS_SNI = HAS_SNI
-
-
-def extract_from_urllib3():
-    'Undo monkey-patching by :func:`inject_into_urllib3`.'
-
-    connectionpool.ssl_wrap_socket = orig_connectionpool_ssl_wrap_socket
-    util.HAS_SNI = orig_util_HAS_SNI
-
-
-### Note: This is a slightly bug-fixed version of same from ndg-httpsclient.
-def get_subj_alt_name(peer_cert):
-    # Search through extensions
-    dns_name = []
-    if not SUBJ_ALT_NAME_SUPPORT:
-        return dns_name
-
-    general_names = SubjectAltName()
-    for i in range(peer_cert.get_extension_count()):
-        ext = peer_cert.get_extension(i)
-        ext_name = ext.get_short_name()
-        if ext_name != 'subjectAltName':
-            continue
-
-        # PyOpenSSL returns extension data in ASN.1 encoded form
-        ext_dat = ext.get_data()
-        decoded_dat = der_decoder.decode(ext_dat,
-                                         asn1Spec=general_names)
-
-        for name in decoded_dat:
-            if not isinstance(name, SubjectAltName):
-                continue
-            for entry in range(len(name)):
-                component = name.getComponentByPosition(entry)
-                if component.getName() != 'dNSName':
-                    continue
-                dns_name.append(str(component.getComponent()))
-
-    return dns_name
-
-
-class fileobject(_fileobject):
-
-    def read(self, size=-1):
-        # Use max, disallow tiny reads in a loop as they are very inefficient.
-        # We never leave read() with any leftover data from a new recv() call
-        # in our internal buffer.
-        rbufsize = max(self._rbufsize, self.default_bufsize)
-        # Our use of StringIO rather than lists of string objects returned by
-        # recv() minimizes memory usage and fragmentation that occurs when
-        # rbufsize is large compared to the typical return value of recv().
-        buf = self._rbuf
-        buf.seek(0, 2)  # seek end
-        if size < 0:
-            # Read until EOF
-            self._rbuf = StringIO()  # reset _rbuf.  we consume it via buf.
-            while True:
-                try:
-                    data = self._sock.recv(rbufsize)
-                except OpenSSL.SSL.WantReadError:
-                    continue
-                if not data:
-                    break
-                buf.write(data)
-            return buf.getvalue()
-        else:
-            # Read until size bytes or EOF seen, whichever comes first
-            buf_len = buf.tell()
-            if buf_len >= size:
-                # Already have size bytes in our buffer?  Extract and return.
-                buf.seek(0)
-                rv = buf.read(size)
-                self._rbuf = StringIO()
-                self._rbuf.write(buf.read())
-                return rv
-
-            self._rbuf = StringIO()  # reset _rbuf.  we consume it via buf.
-            while True:
-                left = size - buf_len
-                # recv() will malloc the amount of memory given as its
-                # parameter even though it often returns much less data
-                # than that.  The returned data string is short lived
-                # as we copy it into a StringIO and free it.  This avoids
-                # fragmentation issues on many platforms.
-                try:
-                    data = self._sock.recv(left)
-                except OpenSSL.SSL.WantReadError:
-                    continue
-                if not data:
-                    break
-                n = len(data)
-                if n == size and not buf_len:
-                    # Shortcut.  Avoid buffer data copies when:
-                    # - We have no data in our buffer.
-                    # AND
-                    # - Our call to recv returned exactly the
-                    #   number of bytes we were asked to read.
-                    return data
-                if n == left:
-                    buf.write(data)
-                    del data  # explicit free
-                    break
-                assert n <= left, "recv(%d) returned %d bytes" % (left, n)
-                buf.write(data)
-                buf_len += n
-                del data  # explicit free
-                #assert buf_len == buf.tell()
-            return buf.getvalue()
-
-    def readline(self, size=-1):
-        buf = self._rbuf
-        buf.seek(0, 2)  # seek end
-        if buf.tell() > 0:
-            # check if we already have it in our buffer
-            buf.seek(0)
-            bline = buf.readline(size)
-            if bline.endswith('\n') or len(bline) == size:
-                self._rbuf = StringIO()
-                self._rbuf.write(buf.read())
-                return bline
-            del bline
-        if size < 0:
-            # Read until \n or EOF, whichever comes first
-            if self._rbufsize <= 1:
-                # Speed up unbuffered case
-                buf.seek(0)
-                buffers = [buf.read()]
-                self._rbuf = StringIO()  # reset _rbuf.  we consume it via buf.
-                data = None
-                recv = self._sock.recv
-                while True:
-                    try:
-                        while data != "\n":
-                            data = recv(1)
-                            if not data:
-                                break
-                            buffers.append(data)
-                    except OpenSSL.SSL.WantReadError:
-                        continue
-                    break
-                return "".join(buffers)
-
-            buf.seek(0, 2)  # seek end
-            self._rbuf = StringIO()  # reset _rbuf.  we consume it via buf.
-            while True:
-                try:
-                    data = self._sock.recv(self._rbufsize)
-                except OpenSSL.SSL.WantReadError:
-                    continue
-                if not data:
-                    break
-                nl = data.find('\n')
-                if nl >= 0:
-                    nl += 1
-                    buf.write(data[:nl])
-                    self._rbuf.write(data[nl:])
-                    del data
-                    break
-                buf.write(data)
-            return buf.getvalue()
-        else:
-            # Read until size bytes or \n or EOF seen, whichever comes first
-            buf.seek(0, 2)  # seek end
-            buf_len = buf.tell()
-            if buf_len >= size:
-                buf.seek(0)
-                rv = buf.read(size)
-                self._rbuf = StringIO()
-                self._rbuf.write(buf.read())
-                return rv
-            self._rbuf = StringIO()  # reset _rbuf.  we consume it via buf.
-            while True:
-                try:
-                    data = self._sock.recv(self._rbufsize)
-                except OpenSSL.SSL.WantReadError:
-                        continue
-                if not data:
-                    break
-                left = size - buf_len
-                # did we just receive a newline?
-                nl = data.find('\n', 0, left)
-                if nl >= 0:
-                    nl += 1
-                    # save the excess data to _rbuf
-                    self._rbuf.write(data[nl:])
-                    if buf_len:
-                        buf.write(data[:nl])
-                        break
-                    else:
-                        # Shortcut.  Avoid data copy through buf when returning
-                        # a substring of our first recv().
-                        return data[:nl]
-                n = len(data)
-                if n == size and not buf_len:
-                    # Shortcut.  Avoid data copy through buf when
-                    # returning exactly all of our first recv().
-                    return data
-                if n >= left:
-                    buf.write(data[:left])
-                    self._rbuf.write(data[left:])
-                    break
-                buf.write(data)
-                buf_len += n
-                #assert buf_len == buf.tell()
-            return buf.getvalue()
-
-
-class WrappedSocket(object):
-    '''API-compatibility wrapper for Python OpenSSL's Connection-class.'''
-
-    def __init__(self, connection, socket):
-        self.connection = connection
-        self.socket = socket
-
-    def fileno(self):
-        return self.socket.fileno()
-
-    def makefile(self, mode, bufsize=-1):
-        return fileobject(self.connection, mode, bufsize)
-
-    def settimeout(self, timeout):
-        return self.socket.settimeout(timeout)
-
-    def sendall(self, data):
-        return self.connection.sendall(data)
-
-    def close(self):
-        return self.connection.shutdown()
-
-    def getpeercert(self, binary_form=False):
-        x509 = self.connection.get_peer_certificate()
-
-        if not x509:
-            return x509
-
-        if binary_form:
-            return OpenSSL.crypto.dump_certificate(
-                OpenSSL.crypto.FILETYPE_ASN1,
-                x509)
-
-        return {
-            'subject': (
-                (('commonName', x509.get_subject().CN),),
-            ),
-            'subjectAltName': [
-                ('DNS', value)
-                for value in get_subj_alt_name(x509)
-            ]
-        }
-
-
-def _verify_callback(cnx, x509, err_no, err_depth, return_code):
-    return err_no == 0
-
-
-def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
-                    ca_certs=None, server_hostname=None,
-                    ssl_version=None):
-    ctx = OpenSSL.SSL.Context(_openssl_versions[ssl_version])
-    if certfile:
-        ctx.use_certificate_file(certfile)
-    if keyfile:
-        ctx.use_privatekey_file(keyfile)
-    if cert_reqs != ssl.CERT_NONE:
-        ctx.set_verify(_openssl_verify[cert_reqs], _verify_callback)
-    if ca_certs:
-        try:
-            ctx.load_verify_locations(ca_certs, None)
-        except OpenSSL.SSL.Error as e:
-            raise ssl.SSLError('bad ca_certs: %r' % ca_certs, e)
-
-    cnx = OpenSSL.SSL.Connection(ctx, sock)
-    cnx.set_tlsext_host_name(server_hostname)
-    cnx.set_connect_state()
-    while True:
-        try:
-            cnx.do_handshake()
-        except OpenSSL.SSL.WantReadError:
-            continue
-        except OpenSSL.SSL.Error as e:
-            raise ssl.SSLError('bad handshake', e)
-        break
-
-    return WrappedSocket(cnx, sock)