Simplify check_X509.py

as pyasn1 and pyOpenSSL are required now
This commit is contained in:
André Apitzsch 2017-10-05 21:54:15 +02:00
parent 6d10a5e2cf
commit 749a01a276
3 changed files with 151 additions and 180 deletions

View File

@ -1,23 +1,19 @@
import logging import logging
log = logging.getLogger('gajim.c.check_X509') log = logging.getLogger('gajim.c.check_X509')
try: import OpenSSL.SSL
import OpenSSL.SSL import OpenSSL.crypto
import OpenSSL.crypto
ver = OpenSSL.__version__
if ver < '0.12':
raise ImportError
from pyasn1.type import univ, constraint, char, namedtype, tag
from pyasn1.codec.der.decoder import decode
from gajim.common.helpers import prep, InvalidFormat
MAX = 64 from pyasn1.type import univ, constraint, char, namedtype, tag
oid_xmppaddr = '1.3.6.1.5.5.7.8.5' from pyasn1.codec.der.decoder import decode
oid_dnssrv = '1.3.6.1.5.5.7.8.7' from gajim.common.helpers import prep, InvalidFormat
MAX = 64
oid_xmppaddr = '1.3.6.1.5.5.7.8.5'
oid_dnssrv = '1.3.6.1.5.5.7.8.7'
class DirectoryString(univ.Choice):
class DirectoryString(univ.Choice):
componentType = namedtype.NamedTypes( componentType = namedtype.NamedTypes(
namedtype.NamedType( namedtype.NamedType(
'teletexString', char.TeletexString().subtype( 'teletexString', char.TeletexString().subtype(
@ -42,30 +38,30 @@ try:
subtypeSpec=constraint.ValueSizeConstraint(1, MAX))), subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
) )
class AttributeValue(DirectoryString): class AttributeValue(DirectoryString):
pass pass
class AttributeType(univ.ObjectIdentifier): class AttributeType(univ.ObjectIdentifier):
pass pass
class AttributeTypeAndValue(univ.Sequence): class AttributeTypeAndValue(univ.Sequence):
componentType = namedtype.NamedTypes( componentType = namedtype.NamedTypes(
namedtype.NamedType('type', AttributeType()), namedtype.NamedType('type', AttributeType()),
namedtype.NamedType('value', AttributeValue()), namedtype.NamedType('value', AttributeValue()),
) )
class RelativeDistinguishedName(univ.SetOf): class RelativeDistinguishedName(univ.SetOf):
componentType = AttributeTypeAndValue() componentType = AttributeTypeAndValue()
class RDNSequence(univ.SequenceOf): class RDNSequence(univ.SequenceOf):
componentType = RelativeDistinguishedName() componentType = RelativeDistinguishedName()
class Name(univ.Choice): class Name(univ.Choice):
componentType = namedtype.NamedTypes( componentType = namedtype.NamedTypes(
namedtype.NamedType('', RDNSequence()), namedtype.NamedType('', RDNSequence()),
) )
class GeneralName(univ.Choice): class GeneralName(univ.Choice):
componentType = namedtype.NamedTypes( componentType = namedtype.NamedTypes(
namedtype.NamedType('otherName', univ.Sequence().subtype( namedtype.NamedType('otherName', univ.Sequence().subtype(
implicitTag=tag.Tag(tag.tagClassContext, implicitTag=tag.Tag(tag.tagClassContext,
@ -97,11 +93,11 @@ try:
tag.tagFormatSimple, 8))), tag.tagFormatSimple, 8))),
) )
class GeneralNames(univ.SequenceOf): class GeneralNames(univ.SequenceOf):
componentType = GeneralName() componentType = GeneralName()
sizeSpec = univ.SequenceOf.sizeSpec + constraint.ValueSizeConstraint(1, MAX) sizeSpec = univ.SequenceOf.sizeSpec + constraint.ValueSizeConstraint(1, MAX)
def _parse_asn1(asn1): def _parse_asn1(asn1):
obj = decode(asn1, asn1Spec=GeneralNames())[0] obj = decode(asn1, asn1Spec=GeneralNames())[0]
r = {} r = {}
for o in obj: for o in obj:
@ -122,7 +118,7 @@ try:
r['uniformResourceIdentifier'] = True r['uniformResourceIdentifier'] = True
return r return r
def check_certificate(cert, domain): def check_certificate(cert, domain):
cnt = cert.get_extension_count() cnt = cert.get_extension_count()
if '.' in domain: if '.' in domain:
compared_domain = domain.split('.', 1)[1] compared_domain = domain.split('.', 1)[1]
@ -172,12 +168,4 @@ try:
if subject.commonName == domain: if subject.commonName == domain:
return True return True
return False return False
except ImportError:
log.warning('Import of PyOpenSSL or pyasn1 failed. Cannot correctly check '
'SSL certificate')
def check_certificate(cert, domain):
subject = cert.get_subject()
if subject.commonName == domain:
return True
return False

View File

@ -45,10 +45,6 @@ class FeaturesWindow:
# {name: (available_function, unix_text, windows_text)} # {name: (available_function, unix_text, windows_text)}
self.features = { self.features = {
_('SSL certificate validation'): (self.pyopenssl_available,
_('A library used to validate server certificates to ensure a secure connection.'),
_('Requires python-pyopenssl > 0.12 and pyasn1.'),
_('Requires python-pyopenssl > 0.12 and pyasn1.')),
_('Bonjour / Zeroconf'): (self.zeroconf_available, _('Bonjour / Zeroconf'): (self.zeroconf_available,
_('Serverless chatting with autodetected clients in a local network.'), _('Serverless chatting with autodetected clients in a local network.'),
_('Requires python-avahi.'), _('Requires python-avahi.'),
@ -151,19 +147,6 @@ class FeaturesWindow:
text = text + self.features[feature][2] text = text + self.features[feature][2]
self.desc_label.set_text(text) self.desc_label.set_text(text)
def pyopenssl_available(self):
try:
import OpenSSL.SSL
import OpenSSL.crypto
ver = OpenSSL.__version__
ver_l = [int(i) for i in ver.split('.')]
if ver_l < [0, 12]:
raise ImportError
import pyasn1
except Exception:
return False
return True
def zeroconf_available(self): def zeroconf_available(self):
return app.HAVE_ZEROCONF return app.HAVE_ZEROCONF

View File

@ -271,7 +271,7 @@ setup(
install_requires=[ install_requires=[
'dbus-python;sys_platform=="linux"', 'dbus-python;sys_platform=="linux"',
'nbxmpp', 'nbxmpp',
'pyOpenSSL', 'pyOpenSSL>=0.12',
'pyasn1', 'pyasn1',
], ],
) )