Python samlp.response_from_string函数代码示例

    def test_encrypted_signed_response_2(self):
        cert_str, cert_key_str = generate_cert()

        signed_resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=True,
            sign_assertion=False,
            encrypt_assertion=True,
            encrypt_assertion_self_contained=True,
        )

        sresponse = response_from_string(signed_resp)

        valid = self.server.sec.verify_signature(signed_resp,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:protocol:Response',
                                                 node_id=sresponse.id,
                                                 id_attr="")
        assert valid

        decr_text = self.server.sec.decrypt(signed_resp, self.client.config.key_file)

        resp = samlp.response_from_string(decr_text)

        resp.assertion = extension_elements_to_elements(resp.encrypted_assertion[0].extension_elements, [saml, samlp])

        assert resp.assertion[0].signature == None

        self.verify_assertion(resp.assertion)

    def test_encrypted_response_1(self):
        cert_str_advice, cert_key_str_advice = generate_cert()

        _resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=False,
            sign_assertion=False,
            encrypt_assertion=False,
            encrypt_assertion_self_contained=True,
            pefim=True,
            encrypt_cert_advice=cert_str_advice,
        )

        _resp = "%s" % _resp

        sresponse = response_from_string(_resp)

        assert sresponse.signature is None

        _, key_file = make_temp(cert_key_str_advice, decode=False)

        decr_text = self.server.sec.decrypt(_resp, key_file)

        resp = samlp.response_from_string(decr_text)

        self.verify_advice_assertion(resp, decr_text)

    def test_encrypted_signed_response_4(self):

        cert_str, cert_key_str = generate_cert()

        signed_resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=True,
            sign_assertion=True,
            encrypt_assertion=True,
            encrypt_assertion_self_contained=True,
            pefim=True,
            encrypt_cert_advice=cert_str,
        )

        sresponse = response_from_string(signed_resp)

        valid = self.server.sec.verify_signature(signed_resp,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:protocol:Response',
                                                 node_id=sresponse.id,
                                                 id_attr="")
        assert valid

        decr_text = self.server.sec.decrypt(signed_resp, self.client.config.encryption_keypairs[1]["key_file"])

        resp = samlp.response_from_string(decr_text)

        resp.assertion = extension_elements_to_elements(resp.encrypted_assertion[0].extension_elements, [saml, samlp])

        valid = self.server.sec.verify_signature(decr_text,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:assertion:Assertion',
                                                 node_id=resp.assertion[0].id,
                                                 id_attr="")

        assert valid

        _, key_file = make_temp(cert_key_str, decode=False)

        decr_text = self.server.sec.decrypt(decr_text, key_file)

        resp = samlp.response_from_string(decr_text)

        assertion = extension_elements_to_elements(resp.encrypted_assertion[0].extension_elements, [saml, samlp])
        assertion = \
             extension_elements_to_elements(assertion[0].advice.encrypted_assertion[0].extension_elements,[saml, samlp])
        self.verify_assertion(assertion)

        #PEFIM never signs assertion in advice
        assert assertion[0].signature is None
        #valid = self.server.sec.verify_signature(decr_text,
        #                                         self.server.config.cert_file,
        #                                         node_name='urn:oasis:names:tc:SAML:2.0:assertion:Assertion',
        #                                         node_id=assertion[0].id,
        #                                         id_attr="")
        assert valid

    def test_encrypted_response_7(self):
        _resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=False,
            sign_assertion=False,
            encrypt_assertion=True,
            encrypt_assertion_self_contained=True,
            pefim=True
        )

        sresponse = response_from_string(_resp)

        assert sresponse.signature is None

        decr_text_1 = self.server.sec.decrypt(_resp, self.client.config.encryption_keypairs[1]["key_file"])

        decr_text_2 = self.server.sec.decrypt(decr_text_1, self.client.config.encryption_keypairs[1]["key_file"])

        resp = samlp.response_from_string(decr_text_2)

        resp.assertion = extension_elements_to_elements(resp.encrypted_assertion[0].extension_elements, [saml, samlp])

        self.verify_advice_assertion(resp, decr_text_2)

    def test_encrypted_response_3(self):
        cert_str_assertion, cert_key_str_assertion = generate_cert()

        _resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=False,
            sign_assertion=False,
            encrypt_assertion=True,
            encrypt_assertion_self_contained=True,
            encrypted_advice_attributes=False,
            encrypt_cert_assertion=cert_str_assertion
        )

        sresponse = response_from_string(_resp)

        assert sresponse.signature is None

        _, key_file = make_temp(cert_key_str_assertion, decode=False)

        decr_text = self.server.sec.decrypt(_resp, key_file)

        resp = samlp.response_from_string(decr_text)

        assert resp.encrypted_assertion[0].extension_elements

        assertion = extension_elements_to_elements(resp.encrypted_assertion[0].extension_elements, [saml, samlp])

        self.verify_encrypted_assertion(assertion, decr_text)

    def test_encrypted_response_5(self):
        _resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=False,
            sign_assertion=False,
            encrypt_assertion=False,
            encrypt_assertion_self_contained=True,
            #encrypted_advice_attributes=True,
            pefim=True
        )

        _resp = "%s" % _resp

        sresponse = response_from_string(_resp)

        assert sresponse.signature is None

        decr_text = self.server.sec.decrypt(_resp, self.client.config.key_file)

        resp = samlp.response_from_string(decr_text)

        self.verify_advice_assertion(resp, decr_text)

    def test_encrypted_signed_response_2(self):
        name_id = self.server.ident.transient_nameid(
            "urn:mace:example.com:saml:roland:sp", "id12")
        ava = {"givenName": ["Derek"], "surName": ["Jeter"],
               "mail": ["[email protected]b.com"], "title": "The man"}

        cert_str, cert_key_str = generate_cert()

        signed_resp = self.server.create_authn_response(
            ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=name_id,
            sign_response=True,
            sign_assertion=True,
            encrypt_assertion=True,
            encrypt_assertion_self_contained=True,
            encrypt_cert=cert_str,
        )

        sresponse = response_from_string(signed_resp)

        valid = self.server.sec.verify_signature(signed_resp,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:protocol:Response',
                                                 node_id=sresponse.id,
                                                 id_attr="")
        assert valid

        _, key_file = make_temp("%s" % cert_key_str, decode=False)

        decr_text = self.server.sec.decrypt(signed_resp, key_file)

        resp = samlp.response_from_string(decr_text)

        assert resp.encrypted_assertion[0].extension_elements

        assertion = extension_elements_to_elements(resp.encrypted_assertion[0].extension_elements, [saml, samlp])
        assert assertion
        assert assertion[0].attribute_statement

        ava = get_ava(assertion[0])

        assert ava ==\
               {'mail': ['[email protected]'], 'givenname': ['Derek'], 'surname': ['Jeter'], 'title': ['The man']}

        assert 'EncryptedAssertion><encas2:Assertion xmlns:encas0="http://www.w3.org/2000/09/xmldsig#" ' \
               'xmlns:encas1="http://www.w3.org/2001/XMLSchema-instance" ' \
               'xmlns:encas2="urn:oasis:names:tc:SAML:2.0:assertion"' in decr_text

        valid = self.server.sec.verify_signature(decr_text,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:assertion:Assertion',
                                                 node_id=assertion[0].id,
                                                 id_attr="")
        assert valid

    def test_signed_response_3(self):


        signed_resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=False,
            sign_assertion=True,
        )

        sresponse = response_from_string(signed_resp)

        assert sresponse.signature == None

        valid = self.server.sec.verify_signature(signed_resp,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:assertion:Assertion',
                                                 node_id=sresponse.assertion[0].id,
                                                 id_attr="")
        assert valid

        self.verify_assertion(sresponse.assertion)

    def test_signed_response(self):
        name_id = self.server.ident.transient_nameid(
            "urn:mace:example.com:saml:roland:sp", "id12")
        ava = {"givenName": ["Derek"], "sn": ["Jeter"],
               "mail": ["[email protected]"], "title": "The man"}

        signed_resp = self.server.create_authn_response(
            ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=name_id,
            sign_assertion=True
        )

        print(signed_resp)
        assert signed_resp

        sresponse = response_from_string(signed_resp)
        # It's the assertions that are signed not the response per se
        assert len(sresponse.assertion) == 1
        assertion = sresponse.assertion[0]

        # Since the reponse is created dynamically I don't know the signature
        # value. Just that there should be one
        assert assertion.signature.signature_value.text != ""

    def test_signed_response_2(self):

        signed_resp = self.server.create_authn_response(
            self.ava,
            "id12",  # in_response_to
            "http://lingon.catalogix.se:8087/",  # consumer_url
            "urn:mace:example.com:saml:roland:sp",  # sp_entity_id
            name_id=self.name_id,
            sign_response=True,
            sign_assertion=True,
            sign_alg=ds.SIG_RSA_SHA256,
            digest_alg=ds.DIGEST_SHA256
        )

        sresponse = response_from_string(signed_resp)
        assert ds.SIG_RSA_SHA256 in str(sresponse), "Not correctly signed!"
        assert ds.DIGEST_SHA256 in str(sresponse), "Not correctly signed!"
        valid = self.server.sec.verify_signature(signed_resp,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:protocol:Response',
                                                 node_id=sresponse.id,
                                                 id_attr="")
        assert valid
        assert ds.SIG_RSA_SHA256 in str(sresponse.assertion[0]), "Not correctly signed!"
        assert ds.DIGEST_SHA256 in str(sresponse.assertion[0]), "Not correctly signed!"
        valid = self.server.sec.verify_signature(signed_resp,
                                                 self.server.config.cert_file,
                                                 node_name='urn:oasis:names:tc:SAML:2.0:assertion:Assertion',
                                                 node_id=sresponse.assertion[0].id,
                                                 id_attr="")
        assert valid

        self.verify_assertion(sresponse.assertion)

    def test_sign_response_2(self):
        assertion2 = factory( saml.Assertion,
            version= "2.0",
            id= "11122",
            issue_instant= "2009-10-30T13:20:28Z",
            signature= sigver.pre_signature_part("11122", self.sec.my_cert),
            attribute_statement=do_attribute_statement({
                    ("","","surName"): ("Fox",""),
                    ("","","givenName") :("Bear",""),
                })
            )
        response = factory(samlp.Response,
                assertion=assertion2,
                id="22233",
                signature=sigver.pre_signature_part("22233", self.sec.my_cert))

        to_sign = [(class_name(assertion2), assertion2.id),
                    (class_name(response), response.id)]

        s_response = sigver.signed_instance_factory(response, self.sec, to_sign)

        assert s_response is not None
        response2 = response_from_string(s_response)

        sass = response2.assertion[0]
        assert _eq(sass.keyswv(), ['attribute_statement', 'issue_instant',
                                'version', 'signature', 'id'])
        assert sass.version == "2.0"
        assert sass.id == "11122"

        item = self.sec.check_signature(response2, class_name(response),
                                        s_response)

        assert isinstance(item, samlp.Response)

    def parse_assertion(self, key_file=""):
        if self.context == "AuthnQuery":
            # can contain one or more assertions
            pass
        else:  # This is a saml2int limitation
            try:
                assert len(self.response.assertion) == 1 or len(self.response.encrypted_assertion) == 1
            except AssertionError:
                raise Exception("No assertion part")

        if self.response.encrypted_assertion:
            logger.debug("***Encrypted assertion/-s***")
            decr_text = self.sec.decrypt(self.xmlstr, key_file)
            resp = samlp.response_from_string(decr_text)
            res = self.decrypt_assertions(resp.encrypted_assertion, key_file)
            if self.response.assertion:
                self.response.assertion.extend(res)
            else:
                self.response.assertion = res
            self.response.encrypted_assertion = []

        if self.response.assertion:
            logger.debug("***Unencrypted assertion***")
            for assertion in self.response.assertion:
                if not self._assertion(assertion):
                    return False
                else:
                    self.assertions.append(assertion)
            self.assertion = self.assertions[0]

        return True

    def testAccessors(self):
        """Test for Response accessors"""
        self.response.id = "response id"
        self.response.in_response_to = "request id"
        self.response.version = saml2.VERSION
        self.response.issue_instant = "2007-09-14T01:05:02Z"
        self.response.destination = "http://www.example.com/Destination"
        self.response.consent = saml.CONSENT_UNSPECIFIED
        self.response.issuer = saml.Issuer()
        self.response.signature = ds.Signature()
        self.response.extensions = samlp.Extensions()
        self.response.status = samlp.Status()
        self.response.assertion.append(saml.Assertion())
        self.response.encrypted_assertion.append(saml.EncryptedAssertion())

        new_response = samlp.response_from_string(self.response.to_string())
        assert new_response.id == "response id"
        assert new_response.in_response_to == "request id"
        assert new_response.version == saml2.VERSION
        assert new_response.issue_instant == "2007-09-14T01:05:02Z"
        assert new_response.destination == "http://www.example.com/Destination"
        assert new_response.consent == saml.CONSENT_UNSPECIFIED
        assert isinstance(new_response.issuer, saml.Issuer)
        assert isinstance(new_response.signature, ds.Signature)
        assert isinstance(new_response.extensions, samlp.Extensions)
        assert isinstance(new_response.status, samlp.Status)

        assert isinstance(new_response.assertion[0], saml.Assertion)
        assert isinstance(new_response.encrypted_assertion[0],
                                                        saml.EncryptedAssertion)

    def test_sign_verify_with_cert_from_instance(self):
        response = factory(samlp.Response,
                           assertion=self._assertion,
                           id="22222",
                           signature=sigver.pre_signature_part("22222",
                                                               self.sec
                                                               .my_cert))

        to_sign = [(class_name(self._assertion), self._assertion.id),
                   (class_name(response), response.id)]

        s_response = sigver.signed_instance_factory(response, self.sec, to_sign)

        response2 = response_from_string(s_response)

        ci = "".join(sigver.cert_from_instance(response2)[0].split())

        assert ci == self.sec.my_cert

        res = self.sec.verify_signature(s_response,
                                        node_name=class_name(samlp.Response()))

        assert res

        res = self.sec._check_signature(s_response, response2,
                                        class_name(response2), s_response)
        assert res == response2

    def correctly_signed_response(self, decoded_xml, must=False, origdoc=None):
        """ Check if a instance is correctly signed, if we have metadata for
        the IdP that sent the info use that, if not use the key that are in 
        the message if any.
        
        :param decoded_xml: The SAML message as a XML string
        :param must: Whether there must be a signature
        :return: None if the signature can not be verified otherwise an instance
        """
        
        response = samlp.response_from_string(decoded_xml)
        if not response:
            raise TypeError("Not a Response")

        if response.signature:
            self._check_signature(decoded_xml, response, class_name(response),
                                  origdoc)

        if response.assertion:
            # Try to find the signing cert in the assertion
            for assertion in response.assertion:
                if not assertion.signature:
                    logger.debug("unsigned")
                    if must:
                        raise SignatureError("Signature missing")
                    continue
                else:
                    logger.debug("signed")

                try:
                    self._check_signature(decoded_xml, assertion,
                                            class_name(assertion), origdoc)
                except Exception, exc:
                    logger.error("correctly_signed_response: %s" % exc)
                    raise