--- a/env/lib/python3.7/site-packages/requests/auth.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,305 +0,0 @@
-# -*- coding: utf-8 -*-
-
-"""
-requests.auth
-~~~~~~~~~~~~~
-
-This module contains the authentication handlers for Requests.
-"""
-
-import os
-import re
-import time
-import hashlib
-import threading
-import warnings
-
-from base64 import b64encode
-
-from .compat import urlparse, str, basestring
-from .cookies import extract_cookies_to_jar
-from ._internal_utils import to_native_string
-from .utils import parse_dict_header
-
-CONTENT_TYPE_FORM_URLENCODED = 'application/x-www-form-urlencoded'
-CONTENT_TYPE_MULTI_PART = 'multipart/form-data'
-
-
-def _basic_auth_str(username, password):
-    """Returns a Basic Auth string."""
-
-    # "I want us to put a big-ol' comment on top of it that
-    # says that this behaviour is dumb but we need to preserve
-    # it because people are relying on it."
-    #    - Lukasa
-    #
-    # These are here solely to maintain backwards compatibility
-    # for things like ints. This will be removed in 3.0.0.
-    if not isinstance(username, basestring):
-        warnings.warn(
-            "Non-string usernames will no longer be supported in Requests "
-            "3.0.0. Please convert the object you've passed in ({!r}) to "
-            "a string or bytes object in the near future to avoid "
-            "problems.".format(username),
-            category=DeprecationWarning,
-        )
-        username = str(username)
-
-    if not isinstance(password, basestring):
-        warnings.warn(
-            "Non-string passwords will no longer be supported in Requests "
-            "3.0.0. Please convert the object you've passed in ({!r}) to "
-            "a string or bytes object in the near future to avoid "
-            "problems.".format(type(password)),
-            category=DeprecationWarning,
-        )
-        password = str(password)
-    # -- End Removal --
-
-    if isinstance(username, str):
-        username = username.encode('latin1')
-
-    if isinstance(password, str):
-        password = password.encode('latin1')
-
-    authstr = 'Basic ' + to_native_string(
-        b64encode(b':'.join((username, password))).strip()
-    )
-
-    return authstr
-
-
-class AuthBase(object):
-    """Base class that all auth implementations derive from"""
-
-    def __call__(self, r):
-        raise NotImplementedError('Auth hooks must be callable.')
-
-
-class HTTPBasicAuth(AuthBase):
-    """Attaches HTTP Basic Authentication to the given Request object."""
-
-    def __init__(self, username, password):
-        self.username = username
-        self.password = password
-
-    def __eq__(self, other):
-        return all([
-            self.username == getattr(other, 'username', None),
-            self.password == getattr(other, 'password', None)
-        ])
-
-    def __ne__(self, other):
-        return not self == other
-
-    def __call__(self, r):
-        r.headers['Authorization'] = _basic_auth_str(self.username, self.password)
-        return r
-
-
-class HTTPProxyAuth(HTTPBasicAuth):
-    """Attaches HTTP Proxy Authentication to a given Request object."""
-
-    def __call__(self, r):
-        r.headers['Proxy-Authorization'] = _basic_auth_str(self.username, self.password)
-        return r
-
-
-class HTTPDigestAuth(AuthBase):
-    """Attaches HTTP Digest Authentication to the given Request object."""
-
-    def __init__(self, username, password):
-        self.username = username
-        self.password = password
-        # Keep state in per-thread local storage
-        self._thread_local = threading.local()
-
-    def init_per_thread_state(self):
-        # Ensure state is initialized just once per-thread
-        if not hasattr(self._thread_local, 'init'):
-            self._thread_local.init = True
-            self._thread_local.last_nonce = ''
-            self._thread_local.nonce_count = 0
-            self._thread_local.chal = {}
-            self._thread_local.pos = None
-            self._thread_local.num_401_calls = None
-
-    def build_digest_header(self, method, url):
-        """
-        :rtype: str
-        """
-
-        realm = self._thread_local.chal['realm']
-        nonce = self._thread_local.chal['nonce']
-        qop = self._thread_local.chal.get('qop')
-        algorithm = self._thread_local.chal.get('algorithm')
-        opaque = self._thread_local.chal.get('opaque')
-        hash_utf8 = None
-
-        if algorithm is None:
-            _algorithm = 'MD5'
-        else:
-            _algorithm = algorithm.upper()
-        # lambdas assume digest modules are imported at the top level
-        if _algorithm == 'MD5' or _algorithm == 'MD5-SESS':
-            def md5_utf8(x):
-                if isinstance(x, str):
-                    x = x.encode('utf-8')
-                return hashlib.md5(x).hexdigest()
-            hash_utf8 = md5_utf8
-        elif _algorithm == 'SHA':
-            def sha_utf8(x):
-                if isinstance(x, str):
-                    x = x.encode('utf-8')
-                return hashlib.sha1(x).hexdigest()
-            hash_utf8 = sha_utf8
-        elif _algorithm == 'SHA-256':
-            def sha256_utf8(x):
-                if isinstance(x, str):
-                    x = x.encode('utf-8')
-                return hashlib.sha256(x).hexdigest()
-            hash_utf8 = sha256_utf8
-        elif _algorithm == 'SHA-512':
-            def sha512_utf8(x):
-                if isinstance(x, str):
-                    x = x.encode('utf-8')
-                return hashlib.sha512(x).hexdigest()
-            hash_utf8 = sha512_utf8
-
-        KD = lambda s, d: hash_utf8("%s:%s" % (s, d))
-
-        if hash_utf8 is None:
-            return None
-
-        # XXX not implemented yet
-        entdig = None
-        p_parsed = urlparse(url)
-        #: path is request-uri defined in RFC 2616 which should not be empty
-        path = p_parsed.path or "/"
-        if p_parsed.query:
-            path += '?' + p_parsed.query
-
-        A1 = '%s:%s:%s' % (self.username, realm, self.password)
-        A2 = '%s:%s' % (method, path)
-
-        HA1 = hash_utf8(A1)
-        HA2 = hash_utf8(A2)
-
-        if nonce == self._thread_local.last_nonce:
-            self._thread_local.nonce_count += 1
-        else:
-            self._thread_local.nonce_count = 1
-        ncvalue = '%08x' % self._thread_local.nonce_count
-        s = str(self._thread_local.nonce_count).encode('utf-8')
-        s += nonce.encode('utf-8')
-        s += time.ctime().encode('utf-8')
-        s += os.urandom(8)
-
-        cnonce = (hashlib.sha1(s).hexdigest()[:16])
-        if _algorithm == 'MD5-SESS':
-            HA1 = hash_utf8('%s:%s:%s' % (HA1, nonce, cnonce))
-
-        if not qop:
-            respdig = KD(HA1, "%s:%s" % (nonce, HA2))
-        elif qop == 'auth' or 'auth' in qop.split(','):
-            noncebit = "%s:%s:%s:%s:%s" % (
-                nonce, ncvalue, cnonce, 'auth', HA2
-            )
-            respdig = KD(HA1, noncebit)
-        else:
-            # XXX handle auth-int.
-            return None
-
-        self._thread_local.last_nonce = nonce
-
-        # XXX should the partial digests be encoded too?
-        base = 'username="%s", realm="%s", nonce="%s", uri="%s", ' \
-               'response="%s"' % (self.username, realm, nonce, path, respdig)
-        if opaque:
-            base += ', opaque="%s"' % opaque
-        if algorithm:
-            base += ', algorithm="%s"' % algorithm
-        if entdig:
-            base += ', digest="%s"' % entdig
-        if qop:
-            base += ', qop="auth", nc=%s, cnonce="%s"' % (ncvalue, cnonce)
-
-        return 'Digest %s' % (base)
-
-    def handle_redirect(self, r, **kwargs):
-        """Reset num_401_calls counter on redirects."""
-        if r.is_redirect:
-            self._thread_local.num_401_calls = 1
-
-    def handle_401(self, r, **kwargs):
-        """
-        Takes the given response and tries digest-auth, if needed.
-
-        :rtype: requests.Response
-        """
-
-        # If response is not 4xx, do not auth
-        # See https://github.com/psf/requests/issues/3772
-        if not 400 <= r.status_code < 500:
-            self._thread_local.num_401_calls = 1
-            return r
-
-        if self._thread_local.pos is not None:
-            # Rewind the file position indicator of the body to where
-            # it was to resend the request.
-            r.request.body.seek(self._thread_local.pos)
-        s_auth = r.headers.get('www-authenticate', '')
-
-        if 'digest' in s_auth.lower() and self._thread_local.num_401_calls < 2:
-
-            self._thread_local.num_401_calls += 1
-            pat = re.compile(r'digest ', flags=re.IGNORECASE)
-            self._thread_local.chal = parse_dict_header(pat.sub('', s_auth, count=1))
-
-            # Consume content and release the original connection
-            # to allow our new request to reuse the same one.
-            r.content
-            r.close()
-            prep = r.request.copy()
-            extract_cookies_to_jar(prep._cookies, r.request, r.raw)
-            prep.prepare_cookies(prep._cookies)
-
-            prep.headers['Authorization'] = self.build_digest_header(
-                prep.method, prep.url)
-            _r = r.connection.send(prep, **kwargs)
-            _r.history.append(r)
-            _r.request = prep
-
-            return _r
-
-        self._thread_local.num_401_calls = 1
-        return r
-
-    def __call__(self, r):
-        # Initialize per-thread state, if needed
-        self.init_per_thread_state()
-        # If we have a saved nonce, skip the 401
-        if self._thread_local.last_nonce:
-            r.headers['Authorization'] = self.build_digest_header(r.method, r.url)
-        try:
-            self._thread_local.pos = r.body.tell()
-        except AttributeError:
-            # In the case of HTTPDigestAuth being reused and the body of
-            # the previous request was a file-like object, pos has the
-            # file position of the previous body. Ensure it's set to
-            # None.
-            self._thread_local.pos = None
-        r.register_hook('response', self.handle_401)
-        r.register_hook('response', self.handle_redirect)
-        self._thread_local.num_401_calls = 1
-
-        return r
-
-    def __eq__(self, other):
-        return all([
-            self.username == getattr(other, 'username', None),
-            self.password == getattr(other, 'password', None)
-        ])
-
-    def __ne__(self, other):
-        return not self == other