(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.
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*.
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 * .
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")
def match_hostname ( cert , hostname ) : 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" )