diff options
Diffstat (limited to 'jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname')
2 files changed, 118 insertions, 0 deletions
diff --git a/jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py b/jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py new file mode 100644 index 0000000..dd59a75 --- /dev/null +++ b/jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py @@ -0,0 +1,13 @@ +try: + # Python 3.2+ + from ssl import CertificateError, match_hostname +except ImportError: + try: + # Backport of the function from a pypi module + from backports.ssl_match_hostname import CertificateError, match_hostname + except ImportError: + # Our vendored copy + from ._implementation import CertificateError, match_hostname + +# Not needed, but documenting what we provide. +__all__ = ('CertificateError', 'match_hostname') diff --git a/jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py b/jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py new file mode 100644 index 0000000..52f4287 --- /dev/null +++ b/jython-tosca-parser/src/main/resources/Lib/site-packages/requests-2.10.0-py2.7.egg/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py @@ -0,0 +1,105 @@ +"""The match_hostname() function from Python 3.3.3, essential when using SSL.""" + +# Note: This file is under the PSF license as the code comes from the python +# stdlib. http://docs.python.org/3/license.html + +import re + +__version__ = '3.4.0.2' + +class CertificateError(ValueError): + pass + + +def _dnsname_match(dn, hostname, max_wildcards=1): + """Matching according to RFC 6125, section 6.4.3 + + http://tools.ietf.org/html/rfc6125#section-6.4.3 + """ + pats = [] + if not dn: + return False + + # Ported from python3-syntax: + # leftmost, *remainder = dn.split(r'.') + parts = dn.split(r'.') + leftmost = parts[0] + remainder = parts[1:] + + wildcards = leftmost.count('*') + if wildcards > max_wildcards: + # Issue #17980: avoid denials of service by refusing more + # than one wildcard per fragment. A survey of established + # policy among SSL implementations showed it to be a + # reasonable choice. + raise CertificateError( + "too many wildcards in certificate DNS name: " + repr(dn)) + + # speed up common case w/o wildcards + if not wildcards: + return dn.lower() == hostname.lower() + + # RFC 6125, section 6.4.3, subitem 1. + # The client SHOULD NOT attempt to match a presented identifier in which + # the wildcard character comprises a label other than the left-most label. + if leftmost == '*': + # When '*' is a fragment by itself, it matches a non-empty dotless + # fragment. + pats.append('[^.]+') + elif leftmost.startswith('xn--') or hostname.startswith('xn--'): + # RFC 6125, section 6.4.3, subitem 3. + # The client SHOULD NOT attempt to match a presented identifier + # where the wildcard character is embedded within an A-label or + # U-label of an internationalized domain name. + pats.append(re.escape(leftmost)) + else: + # Otherwise, '*' matches any dotless string, e.g. www* + pats.append(re.escape(leftmost).replace(r'\*', '[^.]*')) + + # add the remaining fragments, ignore any wildcards + for frag in remainder: + pats.append(re.escape(frag)) + + pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE) + return pat.match(hostname) + + +def match_hostname(cert, hostname): + """Verify that *cert* (in decoded format as returned by + SSLSocket.getpeercert()) matches the *hostname*. RFC 2818 and RFC 6125 + rules are followed, but IP addresses are not accepted for *hostname*. + + CertificateError is raised on failure. On success, the function + returns nothing. + """ + if not cert: + raise ValueError("empty or no certificate") + dnsnames = [] + san = cert.get('subjectAltName', ()) + for key, value in san: + if key == 'DNS': + if _dnsname_match(value, hostname): + return + dnsnames.append(value) + if not dnsnames: + # The subject is only checked when there is no dNSName entry + # in subjectAltName + for sub in cert.get('subject', ()): + for key, value in sub: + # XXX according to RFC 2818, the most specific Common Name + # must be used. + if key == 'commonName': + if _dnsname_match(value, hostname): + return + dnsnames.append(value) + if len(dnsnames) > 1: + raise CertificateError("hostname %r " + "doesn't match either of %s" + % (hostname, ', '.join(map(repr, dnsnames)))) + elif len(dnsnames) == 1: + raise CertificateError("hostname %r " + "doesn't match %r" + % (hostname, dnsnames[0])) + else: + raise CertificateError("no appropriate commonName or " + "subjectAltName fields were found") |