FM / utils

/opt/alt/python37/lib/python3.7/site-packages/raven/utils/

/opt/alt/python37/lib/python3.7/site-packages/raven/utils

Name	Size	Mode	Actions
serializer/	-	0755	rm
__pycache__/	-	0755	rm
compat.py	5676	0644	edit dl rm
conf.py	2278	0644	edit dl rm
encoding.py	3303	0644	edit dl rm
http.py	2000	0644	edit dl rm
imports.py	404	0644	edit dl rm
json.py	2605	0644	edit dl rm
ssl_match_hostname.py	3598	0644	edit dl rm
stacks.py	10041	0644	edit dl rm
testutils.py	697	0644	edit dl rm
transaction.py	1088	0644	edit dl rm
urlparse.py	476	0644	edit dl rm
wsgi.py	3731	0644	edit dl rm
__init__.py	4822	0644	edit dl rm

Edit: /opt/alt/python37/lib/python3.7/site-packages/raven/utils/ssl_match_hostname.py (3598B)

"""The match_hostname() function from Python 3.2, essential when using SSL."""

from __future__ import absolute_import

import re

__version__ = '3.2.2'

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

parts = dn.split(r'.')
    leftmost = parts[0]

wildcards = leftmost.count('*')
    if wildcards > max_wildcards:
        # Issue #17980: avoid denials of service by refusing more
        # than one wildcard per fragment.  A survery 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 parts[1:]:
        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"
        )

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