diff options
Diffstat (limited to 'requests/packages/urllib3/util/ssl_.py')
| -rw-r--r-- | requests/packages/urllib3/util/ssl_.py | 54 |
1 files changed, 30 insertions, 24 deletions
diff --git a/requests/packages/urllib3/util/ssl_.py b/requests/packages/urllib3/util/ssl_.py index b846d42..47b817e 100644 --- a/requests/packages/urllib3/util/ssl_.py +++ b/requests/packages/urllib3/util/ssl_.py @@ -8,6 +8,13 @@ SSLContext = None HAS_SNI = False create_default_context = None +# Maps the length of a digest to a possible hash function producing this digest +HASHFUNC_MAP = { + 32: md5, + 40: sha1, + 64: sha256, +} + import errno import warnings @@ -68,8 +75,11 @@ except ImportError: self.certfile = certfile self.keyfile = keyfile - def load_verify_locations(self, location): - self.ca_certs = location + def load_verify_locations(self, cafile=None, capath=None): + self.ca_certs = cafile + + if capath is not None: + raise SSLError("CA directories not supported in older Pythons") def set_ciphers(self, cipher_suite): if not self.supports_set_ciphers: @@ -112,31 +122,21 @@ def assert_fingerprint(cert, fingerprint): Fingerprint as string of hexdigits, can be interspersed by colons. """ - # Maps the length of a digest to a possible hash function producing - # this digest. - hashfunc_map = { - 16: md5, - 20: sha1, - 32: sha256, - } - fingerprint = fingerprint.replace(':', '').lower() - digest_length, odd = divmod(len(fingerprint), 2) - - if odd or digest_length not in hashfunc_map: - raise SSLError('Fingerprint is of invalid length.') + digest_length = len(fingerprint) + hashfunc = HASHFUNC_MAP.get(digest_length) + if not hashfunc: + raise SSLError( + 'Fingerprint of invalid length: {0}'.format(fingerprint)) # We need encode() here for py32; works on py2 and p33. fingerprint_bytes = unhexlify(fingerprint.encode()) - hashfunc = hashfunc_map[digest_length] - cert_digest = hashfunc(cert).digest() - if not cert_digest == fingerprint_bytes: + if cert_digest != fingerprint_bytes: raise SSLError('Fingerprints did not match. Expected "{0}", got "{1}".' - .format(hexlify(fingerprint_bytes), - hexlify(cert_digest))) + .format(fingerprint, hexlify(cert_digest))) def resolve_cert_reqs(candidate): @@ -243,10 +243,11 @@ def create_urllib3_context(ssl_version=None, cert_reqs=None, def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None, ca_certs=None, server_hostname=None, - ssl_version=None, ciphers=None, ssl_context=None): + ssl_version=None, ciphers=None, ssl_context=None, + ca_cert_dir=None): """ - All arguments except for server_hostname and ssl_context have the same - meaning as they do when using :func:`ssl.wrap_socket`. + All arguments except for server_hostname, ssl_context, and ca_cert_dir have + the same meaning as they do when using :func:`ssl.wrap_socket`. :param server_hostname: When SNI is supported, the expected hostname of the certificate @@ -256,15 +257,19 @@ def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None, :param ciphers: A string of ciphers we wish the client to support. This is not supported on Python 2.6 as the ssl module does not support it. + :param ca_cert_dir: + A directory containing CA certificates in multiple separate files, as + supported by OpenSSL's -CApath flag or the capath argument to + SSLContext.load_verify_locations(). """ context = ssl_context if context is None: context = create_urllib3_context(ssl_version, cert_reqs, ciphers=ciphers) - if ca_certs: + if ca_certs or ca_cert_dir: try: - context.load_verify_locations(ca_certs) + context.load_verify_locations(ca_certs, ca_cert_dir) except IOError as e: # Platform-specific: Python 2.6, 2.7, 3.2 raise SSLError(e) # Py33 raises FileNotFoundError which subclasses OSError @@ -273,6 +278,7 @@ def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None, if e.errno == errno.ENOENT: raise SSLError(e) raise + if certfile: context.load_cert_chain(certfile, keyfile) if HAS_SNI: # Platform-specific: OpenSSL with enabled SNI |