Python x509._Certificate方法代码示例

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def certificates(self):
        sk_x509 = self._backend._lib.OCSP_resp_get0_certs(self._basic)
        num = self._backend._lib.sk_X509_num(sk_x509)
        certs = []
        for i in range(num):
            x509 = self._backend._lib.sk_X509_value(sk_x509, i)
            self._backend.openssl_assert(x509 != self._backend._ffi.NULL)
            cert = _Certificate(self._backend, x509)
            # We need to keep the OCSP response that the certificate came from
            # alive until the Certificate object itself goes out of scope, so
            # we give it a private reference.
            cert._ocsp_resp = self
            certs.append(cert)

        return certs 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def to_cryptography(self):
        """
        Export as a ``cryptography`` certificate.

        :rtype: ``cryptography.x509.Certificate``

        .. versionadded:: 17.1.0
        """
        from cryptography.hazmat.backends.openssl.x509 import _Certificate
        backend = _get_backend()
        return _Certificate(backend, self._x509) 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def get_subj_alt_name(peer_cert):
    """
    Given an PyOpenSSL certificate, provides all the subject alternative names.
    """
    # Pass the cert to cryptography, which has much better APIs for this.
    if hasattr(peer_cert, "to_cryptography"):
        cert = peer_cert.to_cryptography()
    else:
        # This is technically using private APIs, but should work across all
        # relevant versions before PyOpenSSL got a proper API for this.
        cert = _Certificate(openssl_backend, peer_cert._x509)

    # We want to find the SAN extension. Ask Cryptography to locate it (it's
    # faster than looping in Python)
    try:
        ext = cert.extensions.get_extension_for_class(
            x509.SubjectAlternativeName
        ).value
    except x509.ExtensionNotFound:
        # No such extension, return the empty list.
        return []
    except (x509.DuplicateExtension, UnsupportedExtension,
            x509.UnsupportedGeneralNameType, UnicodeError) as e:
        # A problem has been found with the quality of the certificate. Assume
        # no SAN field is present.
        log.warning(
            "A problem was encountered with the certificate that prevented "
            "urllib3 from finding the SubjectAlternativeName field. This can "
            "affect certificate validation. The error was %s",
            e,
        )
        return []

    # We want to return dNSName and iPAddress fields. We need to cast the IPs
    # back to strings because the match_hostname function wants them as
    # strings.
    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
    # decoded. This is pretty frustrating, but that's what the standard library
    # does with certificates, and so we need to attempt to do the same.
    # We also want to skip over names which cannot be idna encoded.
    names = [
        ('DNS', name) for name in map(_dnsname_to_stdlib, ext.get_values_for_type(x509.DNSName))
        if name is not None
    ]
    names.extend(
        ('IP Address', str(name))
        for name in ext.get_values_for_type(x509.IPAddress)
    )

    return names 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def get_subj_alt_name(peer_cert):
    """
    Given an PyOpenSSL certificate, provides all the subject alternative names.
    """
    # Pass the cert to cryptography, which has much better APIs for this.
    if hasattr(peer_cert, "to_cryptography"):
        cert = peer_cert.to_cryptography()
    else:
        # This is technically using private APIs, but should work across all
        # relevant versions before PyOpenSSL got a proper API for this.
        cert = _Certificate(openssl_backend, peer_cert._x509)

    # We want to find the SAN extension. Ask Cryptography to locate it (it's
    # faster than looping in Python)
    try:
        ext = cert.extensions.get_extension_for_class(x509.SubjectAlternativeName).value
    except x509.ExtensionNotFound:
        # No such extension, return the empty list.
        return []
    except (
        x509.DuplicateExtension,
        UnsupportedExtension,
        x509.UnsupportedGeneralNameType,
        UnicodeError,
    ) as e:
        # A problem has been found with the quality of the certificate. Assume
        # no SAN field is present.
        log.warning(
            "A problem was encountered with the certificate that prevented "
            "urllib3 from finding the SubjectAlternativeName field. This can "
            "affect certificate validation. The error was %s",
            e,
        )
        return []

    # We want to return dNSName and iPAddress fields. We need to cast the IPs
    # back to strings because the match_hostname function wants them as
    # strings.
    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
    # decoded. This is pretty frustrating, but that's what the standard library
    # does with certificates, and so we need to attempt to do the same.
    # We also want to skip over names which cannot be idna encoded.
    names = [
        ("DNS", name)
        for name in map(_dnsname_to_stdlib, ext.get_values_for_type(x509.DNSName))
        if name is not None
    ]
    names.extend(
        ("IP Address", str(name)) for name in ext.get_values_for_type(x509.IPAddress)
    )

    return names 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def get_subj_alt_name(peer_cert):
    """Given an PyOpenSSL certificate, provides all the subject alternative names."""
    # Pass the cert to cryptography, which has much better APIs for this.
    if hasattr(peer_cert, "to_cryptography"):
        cert = peer_cert.to_cryptography()
    else:
        # This is technically using private APIs, but should work across all
        # relevant versions before PyOpenSSL got a proper API for this.
        cert = _Certificate(openssl_backend, peer_cert._x509)

    # We want to find the SAN extension. Ask Cryptography to locate it (it's
    # faster than looping in Python)
    try:
        ext = cert.extensions.get_extension_for_class(
            x509.SubjectAlternativeName
        ).value
    except x509.ExtensionNotFound:
        # No such extension, return the empty list.
        return []
    except (x509.DuplicateExtension,
            x509.UnsupportedGeneralNameType, UnicodeError) as e:
        # A problem has been found with the quality of the certificate. Assume
        # no SAN field is present.
        log.warning(
            "A problem was encountered with the certificate that prevented "
            "urllib3 from finding the SubjectAlternativeName field. This can "
            "affect certificate validation. The error was %s",
            e,
        )
        return []

    # We want to return dNSName and iPAddress fields. We need to cast the IPs
    # back to strings because the match_hostname function wants them as
    # strings.
    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
    # decoded. This is pretty frustrating, but that's what the standard library
    # does with certificates, and so we need to attempt to do the same.
    names = [
        ('DNS', _dnsname_to_stdlib(name))
        for name in ext.get_values_for_type(x509.DNSName)
    ]
    names.extend(
        ('IP Address', str(name))
        for name in ext.get_values_for_type(x509.IPAddress)
    )

    return names 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def get_subj_alt_name(peer_cert):
    """
    Given an PyOpenSSL certificate, provides all the subject alternative names.
    """
    # Pass the cert to cryptography, which has much better APIs for this.
    # This is technically using private APIs, but should work across all
    # relevant versions until PyOpenSSL gets something proper for this.
    cert = _Certificate(openssl_backend, peer_cert._x509)

    # We want to find the SAN extension. Ask Cryptography to locate it (it's
    # faster than looping in Python)
    try:
        ext = cert.extensions.get_extension_for_class(
            x509.SubjectAlternativeName
        ).value
    except x509.ExtensionNotFound:
        # No such extension, return the empty list.
        return []
    except (x509.DuplicateExtension, x509.UnsupportedExtension,
            x509.UnsupportedGeneralNameType, UnicodeError) as e:
        # A problem has been found with the quality of the certificate. Assume
        # no SAN field is present.
        log.warning(
            "A problem was encountered with the certificate that prevented "
            "urllib3 from finding the SubjectAlternativeName field. This can "
            "affect certificate validation. The error was %s",
            e,
        )
        return []

    # We want to return dNSName and iPAddress fields. We need to cast the IPs
    # back to strings because the match_hostname function wants them as
    # strings.
    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
    # decoded. This is pretty frustrating, but that's what the standard library
    # does with certificates, and so we need to attempt to do the same.
    names = [
        ('DNS', _dnsname_to_stdlib(name))
        for name in ext.get_values_for_type(x509.DNSName)
    ]
    names.extend(
        ('IP Address', str(name))
        for name in ext.get_values_for_type(x509.IPAddress)
    )

    return names 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def get_subj_alt_name(peer_cert):
    """
    Given an PyOpenSSL certificate, provides all the subject alternative names.
    """
    # Pass the cert to cryptography, which has much better APIs for this.
    if hasattr(peer_cert, "to_cryptography"):
        cert = peer_cert.to_cryptography()
    else:
        # This is technically using private APIs, but should work across all
        # relevant versions before PyOpenSSL got a proper API for this.
        cert = _Certificate(openssl_backend, peer_cert._x509)

    # We want to find the SAN extension. Ask Cryptography to locate it (it's
    # faster than looping in Python)
    try:
        ext = cert.extensions.get_extension_for_class(
            x509.SubjectAlternativeName
        ).value
    except x509.ExtensionNotFound:
        # No such extension, return the empty list.
        return []
    except (x509.DuplicateExtension, x509.UnsupportedExtension,
            x509.UnsupportedGeneralNameType, UnicodeError) as e:
        # A problem has been found with the quality of the certificate. Assume
        # no SAN field is present.
        log.warning(
            "A problem was encountered with the certificate that prevented "
            "urllib3 from finding the SubjectAlternativeName field. This can "
            "affect certificate validation. The error was %s",
            e,
        )
        return []

    # We want to return dNSName and iPAddress fields. We need to cast the IPs
    # back to strings because the match_hostname function wants them as
    # strings.
    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
    # decoded. This is pretty frustrating, but that's what the standard library
    # does with certificates, and so we need to attempt to do the same.
    names = [
        ('DNS', _dnsname_to_stdlib(name))
        for name in ext.get_values_for_type(x509.DNSName)
    ]
    names.extend(
        ('IP Address', str(name))
        for name in ext.get_values_for_type(x509.IPAddress)
    )

    return names 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def get_subj_alt_name(peer_cert):
    """
    Given an PyOpenSSL certificate, provides all the subject alternative names.
    """
    # Pass the cert to cryptography, which has much better APIs for this.
    if hasattr(peer_cert, "to_cryptography"):
        cert = peer_cert.to_cryptography()
    else:
        # This is technically using private APIs, but should work across all
        # relevant versions before PyOpenSSL got a proper API for this.
        cert = _Certificate(openssl_backend, peer_cert._x509)

    # We want to find the SAN extension. Ask Cryptography to locate it (it's
    # faster than looping in Python)
    try:
        ext = cert.extensions.get_extension_for_class(
            x509.SubjectAlternativeName
        ).value
    except x509.ExtensionNotFound:
        # No such extension, return the empty list.
        return []
    except (x509.DuplicateExtension, UnsupportedExtension,
            x509.UnsupportedGeneralNameType, UnicodeError) as e:
        # A problem has been found with the quality of the certificate. Assume
        # no SAN field is present.
        log.warning(
            "A problem was encountered with the certificate that prevented "
            "urllib3 from finding the SubjectAlternativeName field. This can "
            "affect certificate validation. The error was %s",
            e,
        )
        return []

    # We want to return dNSName and iPAddress fields. We need to cast the IPs
    # back to strings because the match_hostname function wants them as
    # strings.
    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
    # decoded. This is pretty frustrating, but that's what the standard library
    # does with certificates, and so we need to attempt to do the same.
    names = [
        ('DNS', _dnsname_to_stdlib(name))
        for name in ext.get_values_for_type(x509.DNSName)
    ]
    names.extend(
        ('IP Address', str(name))
        for name in ext.get_values_for_type(x509.IPAddress)
    )

    return names 

# 需要导入模块: from cryptography.hazmat.backends.openssl import x509 [as 别名]
# 或者: from cryptography.hazmat.backends.openssl.x509 import _Certificate [as 别名]
def process_pkcs7(self, data, name):
        """
        Process PKCS7 signature with certificate in it.
        :param data:
        :param name:
        :return:
        """
        from cryptography.hazmat.backends.openssl.backend import backend
        from cryptography.hazmat.backends.openssl.x509 import _Certificate

        # DER conversion
        is_pem = startswith(data, '-----')
        if self.re_match(r'^[a-zA-Z0-9-\s+=/]+$', data):
            is_pem = True

        try:
            der = data
            if is_pem:
                data = data.decode('utf8')
                data = re.sub(r'\s*-----\s*BEGIN\s+PKCS7\s*-----', '', data)
                data = re.sub(r'\s*-----\s*END\s+PKCS7\s*-----', '', data)
                der = base64.b64decode(data)

            bio = backend._bytes_to_bio(der)
            pkcs7 = backend._lib.d2i_PKCS7_bio(bio.bio, backend._ffi.NULL)
            backend.openssl_assert(pkcs7 != backend._ffi.NULL)
            signers = backend._lib.PKCS7_get0_signers(pkcs7, backend._ffi.NULL, 0)
            backend.openssl_assert(signers != backend._ffi.NULL)
            backend.openssl_assert(backend._lib.sk_X509_num(signers) > 0)
            x509_ptr = backend._lib.sk_X509_value(signers, 0)
            backend.openssl_assert(x509_ptr != backend._ffi.NULL)
            x509_ptr = backend._ffi.gc(x509_ptr, backend._lib.X509_free)
            x509 = _Certificate(backend, x509_ptr)

            self.num_pkcs7_cert += 1

            return [self.process_x509(x509, name=name, pem=False, source='pkcs7-cert', aux='')]

        except Exception as e:
            logger.debug('Error in PKCS7 processing %s: %s' % (name, e))
            self.trace_logger.log(e)

    #
    # Helpers & worker
    #