def is_valid(self, request_data, request_id=None):
"""
Determines if the SAML LogoutResponse is valid
:param request_id: The ID of the LogoutRequest sent by this SP to the IdP
:type request_id: string
:return: Returns if the SAML LogoutResponse is or not valid
:rtype: boolean
"""
self.__error = None
try:
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
get_data = request_data['get_data']
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(
self.document, 'saml-schema-protocol-2.0.xsd',
self.__settings.is_debug_active())
if isinstance(res, str):
raise Exception(
'Invalid SAML Logout Request. Not match the saml-schema-protocol-2.0.xsd'
)
security = self.__settings.get_security_data()
# Check if the InResponseTo of the Logout Response matchs the ID of the Logout Request (requestId) if provided
in_response_to = self.document.get('InResponseTo', None)
if request_id is not None and in_response_to and in_response_to != request_id:
raise Exception(
'The InResponseTo of the Logout Response: %s, does not match the ID of the Logout request sent by the SP: %s'
% (in_response_to, request_id))
# Check issuer
issuer = self.get_issuer()
if issuer is not None and issuer != idp_entity_id:
raise Exception('Invalid issuer in the Logout Request')
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(
request_data)
# Check destination
destination = self.document.get('Destination', None)
if destination and current_url not in destination:
raise Exception(
'The LogoutRequest was received at $currentURL instead of $destination'
)
if security['wantMessagesSigned']:
if 'Signature' not in get_data:
raise Exception(
'The Message of the Logout Response is not signed and the SP require it'
)
return True
# pylint: disable=R0801
except Exception as err:
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
return False
def is_valid(self, request_data, request_id=None):
"""
Determines if the SAML LogoutResponse is valid
:param request_id: The ID of the LogoutRequest sent by this SP to the IdP
:type request_id: string
:return: Returns if the SAML LogoutResponse is or not valid
:rtype: boolean
"""
self.__error = None
try:
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
get_data = request_data['get_data']
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(self.document, 'saml-schema-protocol-2.0.xsd', self.__settings.is_debug_active())
if isinstance(res, str):
raise Exception('Invalid SAML Logout Request. Not match the saml-schema-protocol-2.0.xsd')
security = self.__settings.get_security_data()
# Check if the InResponseTo of the Logout Response matches the ID of the Logout Request (requestId) if provided
in_response_to = self.document.get('InResponseTo', None)
if request_id is not None and in_response_to and in_response_to != request_id:
raise Exception('The InResponseTo of the Logout Response: %s, does not match the ID of the Logout request sent by the SP: %s' % (in_response_to, request_id))
# Check issuer
issuer = self.get_issuer()
if issuer is not None and issuer != idp_entity_id:
raise Exception('Invalid issuer in the Logout Request')
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(request_data)
# Check destination
destination = self.document.get('Destination', None)
if destination and current_url not in destination:
raise Exception('The LogoutRequest was received at $currentURL instead of $destination')
if security['wantMessagesSigned']:
if 'Signature' not in get_data:
raise Exception('The Message of the Logout Response is not signed and the SP require it')
return True
# pylint: disable=R0801
except Exception as err:
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
return False
def validate_metadata(self, xml):
"""
Validates an XML SP Metadata.
:param xml: Metadata's XML that will be validate
:type xml: string
:returns: The list of found errors
:rtype: list
"""
assert isinstance(xml, compat.text_types)
if len(xml) == 0:
raise Exception('Empty string supplied as input')
errors = []
root = OneLogin_Saml2_XML.validate_xml(xml,
'saml-schema-metadata-2.0.xsd',
self.__debug)
if isinstance(root, str):
errors.append(root)
else:
if root.tag != '{%s}EntityDescriptor' % OneLogin_Saml2_Constants.NS_MD:
errors.append('noEntityDescriptor_xml')
else:
if (len(
root.findall(
'.//md:SPSSODescriptor',
namespaces=OneLogin_Saml2_Constants.NSMAP))) != 1:
errors.append('onlySPSSODescriptor_allowed_xml')
else:
valid_until, cache_duration = root.get(
'validUntil'), root.get('cacheDuration')
if valid_until:
valid_until = OneLogin_Saml2_Utils.parse_SAML_to_time(
valid_until)
expire_time = OneLogin_Saml2_Utils.get_expire_time(
cache_duration, valid_until)
if expire_time is not None and int(
time()) > int(expire_time):
errors.append('expired_xml')
# TODO: Validate Sign
return errors
def validate_metadata(self, xml):
"""
Validates an XML SP Metadata.
:param xml: Metadata's XML that will be validate
:type xml: string
:returns: The list of found errors
:rtype: list
"""
assert isinstance(xml, compat.text_types)
if len(xml) == 0:
raise Exception('Empty string supplied as input')
errors = []
root = OneLogin_Saml2_XML.validate_xml(xml, 'saml-schema-metadata-2.0.xsd', self.__debug)
if isinstance(root, str):
errors.append(root)
else:
if root.tag != '{%s}EntityDescriptor' % OneLogin_Saml2_Constants.NS_MD:
errors.append('noEntityDescriptor_xml')
else:
if (len(root.findall('.//md:SPSSODescriptor', namespaces=OneLogin_Saml2_Constants.NSMAP))) != 1:
errors.append('onlySPSSODescriptor_allowed_xml')
else:
valid_until, cache_duration = root.get('validUntil'), root.get('cacheDuration')
if valid_until:
valid_until = OneLogin_Saml2_Utils.parse_SAML_to_time(valid_until)
expire_time = OneLogin_Saml2_Utils.get_expire_time(cache_duration, valid_until)
if expire_time is not None and int(time()) > int(expire_time):
errors.append('expired_xml')
# TODO: Validate Sign
return errors
def is_valid(self, request_data, request_id=None, raise_exceptions=False):
"""
Validates the response object.
:param request_data: Request Data
:type request_data: dict
:param request_id: Optional argument. The ID of the AuthNRequest sent by this SP to the IdP
:type request_id: string
:param raise_exceptions: Whether to return false on failure or raise an exception
:type raise_exceptions: Boolean
:returns: True if the SAML Response is valid, False if not
:rtype: bool
"""
self.__error = None
try:
# Checks SAML version
if self.document.get('Version', None) != '2.0':
raise OneLogin_Saml2_ValidationError(
'Unsupported SAML version',
OneLogin_Saml2_ValidationError.UNSUPPORTED_SAML_VERSION
)
# Checks that ID exists
if self.document.get('ID', None) is None:
raise OneLogin_Saml2_ValidationError(
'Missing ID attribute on SAML Response',
OneLogin_Saml2_ValidationError.MISSING_ID
)
# Checks that the response only has one assertion
if not self.validate_num_assertions():
raise OneLogin_Saml2_ValidationError(
'SAML Response must contain 1 assertion',
OneLogin_Saml2_ValidationError.WRONG_NUMBER_OF_ASSERTIONS
)
# Checks that the response has the SUCCESS status
self.check_status()
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
sp_data = self.__settings.get_sp_data()
sp_entity_id = sp_data['entityId']
signed_elements = self.process_signed_elements()
has_signed_response = '{%s}Response' % OneLogin_Saml2_Constants.NS_SAMLP in signed_elements
has_signed_assertion = '{%s}Assertion' % OneLogin_Saml2_Constants.NS_SAML in signed_elements
if self.__settings.is_strict():
no_valid_xml_msg = 'Invalid SAML Response. Not match the saml-schema-protocol-2.0.xsd'
res = OneLogin_Saml2_XML.validate_xml(self.document, 'saml-schema-protocol-2.0.xsd', self.__settings.is_debug_active())
if isinstance(res, str):
raise OneLogin_Saml2_ValidationError(
no_valid_xml_msg,
OneLogin_Saml2_ValidationError.INVALID_XML_FORMAT
)
# If encrypted, check also the decrypted document
if self.encrypted:
res = OneLogin_Saml2_XML.validate_xml(self.decrypted_document, 'saml-schema-protocol-2.0.xsd', self.__settings.is_debug_active())
if isinstance(res, str):
raise OneLogin_Saml2_ValidationError(
no_valid_xml_msg,
OneLogin_Saml2_ValidationError.INVALID_XML_FORMAT
)
security = self.__settings.get_security_data()
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(request_data)
# Check if the InResponseTo of the Response matchs the ID of the AuthNRequest (requestId) if provided
in_response_to = self.document.get('InResponseTo', None)
if in_response_to is not None and request_id is not None:
if in_response_to != request_id:
raise OneLogin_Saml2_ValidationError(
'The InResponseTo of the Response: %s, does not match the ID of the AuthNRequest sent by the SP: %s' % (in_response_to, request_id),
OneLogin_Saml2_ValidationError.WRONG_INRESPONSETO
)
if not self.encrypted and security['wantAssertionsEncrypted']:
raise OneLogin_Saml2_ValidationError(
'The assertion of the Response is not encrypted and the SP require it',
OneLogin_Saml2_ValidationError.NO_ENCRYPTED_ASSERTION
)
if security['wantNameIdEncrypted']:
encrypted_nameid_nodes = self.__query_assertion('/saml:Subject/saml:EncryptedID/xenc:EncryptedData')
if len(encrypted_nameid_nodes) != 1:
raise OneLogin_Saml2_ValidationError(
'The NameID of the Response is not encrypted and the SP require it',
OneLogin_Saml2_ValidationError.NO_ENCRYPTED_NAMEID
)
# Checks that a Conditions element exists
if not self.check_one_condition():
raise OneLogin_Saml2_ValidationError(
'The Assertion must include a Conditions element',
OneLogin_Saml2_ValidationError.MISSING_CONDITIONS
)
# Validates Assertion timestamps
self.validate_timestamps(raise_exceptions=True)
# Checks that an AuthnStatement element exists and is unique
if not self.check_one_authnstatement():
raise OneLogin_Saml2_ValidationError(
'The Assertion must include an AuthnStatement element',
OneLogin_Saml2_ValidationError.WRONG_NUMBER_OF_AUTHSTATEMENTS
)
# Checks that there is at least one AttributeStatement if required
attribute_statement_nodes = self.__query_assertion('/saml:AttributeStatement')
if security.get('wantAttributeStatement', True) and not attribute_statement_nodes:
raise OneLogin_Saml2_ValidationError(
'There is no AttributeStatement on the Response',
OneLogin_Saml2_ValidationError.NO_ATTRIBUTESTATEMENT
)
encrypted_attributes_nodes = self.__query_assertion('/saml:AttributeStatement/saml:EncryptedAttribute')
if encrypted_attributes_nodes:
raise OneLogin_Saml2_ValidationError(
'There is an EncryptedAttribute in the Response and this SP not support them',
OneLogin_Saml2_ValidationError.ENCRYPTED_ATTRIBUTES
)
# Checks destination
destination = self.document.get('Destination', None)
if destination:
if not destination.startswith(current_url):
# TODO: Review if following lines are required, since we can control the
# request_data
# current_url_routed = OneLogin_Saml2_Utils.get_self_routed_url_no_query(request_data)
# if not destination.startswith(current_url_routed):
raise OneLogin_Saml2_ValidationError(
'The response was received at %s instead of %s' % (current_url, destination),
OneLogin_Saml2_ValidationError.WRONG_DESTINATION
)
elif destination == '':
raise OneLogin_Saml2_ValidationError(
'The response has an empty Destination value',
OneLogin_Saml2_ValidationError.EMPTY_DESTINATION
)
# Checks audience
valid_audiences = self.get_audiences()
if valid_audiences and sp_entity_id not in valid_audiences:
raise OneLogin_Saml2_ValidationError(
'%s is not a valid audience for this Response' % sp_entity_id,
OneLogin_Saml2_ValidationError.WRONG_AUDIENCE
)
# Checks the issuers
issuers = self.get_issuers()
for issuer in issuers:
if issuer is None or issuer != idp_entity_id:
raise OneLogin_Saml2_ValidationError(
'Invalid issuer in the Assertion/Response',
OneLogin_Saml2_ValidationError.WRONG_ISSUER
)
# Checks the session Expiration
session_expiration = self.get_session_not_on_or_after()
if session_expiration and session_expiration <= OneLogin_Saml2_Utils.now():
raise OneLogin_Saml2_ValidationError(
'The attributes have expired, based on the SessionNotOnOrAfter of the AttributeStatement of this Response',
OneLogin_Saml2_ValidationError.SESSION_EXPIRED
)
# Checks the SubjectConfirmation, at least one SubjectConfirmation must be valid
any_subject_confirmation = False
subject_confirmation_nodes = self.__query_assertion('/saml:Subject/saml:SubjectConfirmation')
for scn in subject_confirmation_nodes:
method = scn.get('Method', None)
if method and method != OneLogin_Saml2_Constants.CM_BEARER:
continue
sc_data = scn.find('saml:SubjectConfirmationData', namespaces=OneLogin_Saml2_Constants.NSMAP)
if sc_data is None:
continue
else:
irt = sc_data.get('InResponseTo', None)
if in_response_to and irt and irt != in_response_to:
continue
recipient = sc_data.get('Recipient', None)
if recipient and current_url not in recipient:
continue
nooa = sc_data.get('NotOnOrAfter', None)
if nooa:
parsed_nooa = OneLogin_Saml2_Utils.parse_SAML_to_time(nooa)
if parsed_nooa <= OneLogin_Saml2_Utils.now():
continue
nb = sc_data.get('NotBefore', None)
if nb:
parsed_nb = OneLogin_Saml2_Utils.parse_SAML_to_time(nb)
if parsed_nb > OneLogin_Saml2_Utils.now():
continue
any_subject_confirmation = True
break
if not any_subject_confirmation:
raise OneLogin_Saml2_ValidationError(
'A valid SubjectConfirmation was not found on this Response',
OneLogin_Saml2_ValidationError.WRONG_SUBJECTCONFIRMATION
)
if security['wantAssertionsSigned'] and not has_signed_assertion:
raise OneLogin_Saml2_ValidationError(
'The Assertion of the Response is not signed and the SP require it',
OneLogin_Saml2_ValidationError.NO_SIGNED_ASSERTION
)
if security['wantMessagesSigned'] and not has_signed_response:
raise OneLogin_Saml2_ValidationError(
'The Message of the Response is not signed and the SP require it',
OneLogin_Saml2_ValidationError.NO_SIGNED_MESSAGE
)
if not signed_elements or (not has_signed_response and not has_signed_assertion):
raise OneLogin_Saml2_ValidationError(
'No Signature found. SAML Response rejected',
OneLogin_Saml2_ValidationError.NO_SIGNATURE_FOUND
)
else:
cert = idp_data.get('x509cert', None)
fingerprint = idp_data.get('certFingerprint', None)
if fingerprint:
fingerprint = OneLogin_Saml2_Utils.format_finger_print(fingerprint)
fingerprintalg = idp_data.get('certFingerprintAlgorithm', None)
# If find a Signature on the Response, validates it checking the original response
if has_signed_response and not OneLogin_Saml2_Utils.validate_sign(self.document, cert, fingerprint, fingerprintalg, xpath=OneLogin_Saml2_Utils.RESPONSE_SIGNATURE_XPATH, raise_exceptions=False):
raise OneLogin_Saml2_ValidationError(
'Signature validation failed. SAML Response rejected',
OneLogin_Saml2_ValidationError.INVALID_SIGNATURE
)
document_check_assertion = self.decrypted_document if self.encrypted else self.document
if has_signed_assertion and not OneLogin_Saml2_Utils.validate_sign(document_check_assertion, cert, fingerprint, fingerprintalg, xpath=OneLogin_Saml2_Utils.ASSERTION_SIGNATURE_XPATH, raise_exceptions=False):
raise OneLogin_Saml2_ValidationError(
'Signature validation failed. SAML Response rejected',
OneLogin_Saml2_ValidationError.INVALID_SIGNATURE
)
return True
except Exception as err:
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
if raise_exceptions:
raise
return False
def is_valid(self, request_data):
"""
Checks if the Logout Request received is valid
:param request_data: Request Data
:type request_data: dict
:return: If the Logout Request is or not valid
:rtype: boolean
"""
self.__error = None
try:
root = OneLogin_Saml2_XML.to_etree(self.__logout_request)
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
get_data = ('get_data' in request_data
and request_data['get_data']) or dict()
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(
root, 'saml-schema-protocol-2.0.xsd',
self.__settings.is_debug_active())
if isinstance(res, str):
raise Exception(
'Invalid SAML Logout Request. Not match the saml-schema-protocol-2.0.xsd'
)
security = self.__settings.get_security_data()
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(
request_data)
# Check NotOnOrAfter
if root.get('NotOnOrAfter', None):
na = OneLogin_Saml2_Utils.parse_SAML_to_time(
root.get('NotOnOrAfter'))
if na <= OneLogin_Saml2_Utils.now():
raise Exception(
'Timing issues (please check your clock settings)')
# Check destination
if root.get('Destination', None):
destination = root.get('Destination')
if destination != '':
if current_url not in destination:
raise Exception(
'The LogoutRequest was received at '
'%(currentURL)s instead of %(destination)s' % {
'currentURL': current_url,
'destination': destination,
})
# Check issuer
issuer = OneLogin_Saml2_Logout_Request.get_issuer(root)
if issuer is not None and issuer != idp_entity_id:
raise Exception('Invalid issuer in the Logout Request')
if security['wantMessagesSigned']:
if 'Signature' not in get_data:
raise Exception(
'The Message of the Logout Request is not signed and the SP require it'
)
return True
except Exception as err:
# pylint: disable=R0801
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
return False
def is_valid(self, request_data, request_id=None):
"""
Validates the response object.
:param request_data: Request Data
:type request_data: dict
:param request_id: Optional argument. The ID of the AuthNRequest sent by this SP to the IdP
:type request_id: string
:returns: True if the SAML Response is valid, False if not
:rtype: bool
"""
self.__error = None
try:
# Checks SAML version
if self.document.get('Version', None) != '2.0':
raise Exception('Unsupported SAML version')
# Checks that ID exists
if self.document.get('ID', None) is None:
raise Exception('Missing ID attribute on SAML Response')
# Checks that the response only has one assertion
if not self.validate_num_assertions():
raise Exception('SAML Response must contain 1 assertion')
# Checks that the response has the SUCCESS status
self.check_status()
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
sp_data = self.__settings.get_sp_data()
sp_entity_id = sp_data['entityId']
sign_nodes = self.__query('//ds:Signature')
signed_elements = []
for sign_node in sign_nodes:
signed_elements.append(sign_node.getparent().tag)
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(
self.document, 'saml-schema-protocol-2.0.xsd',
self.__settings.is_debug_active())
if isinstance(res, str):
raise Exception(
'Invalid SAML Response. Not match the saml-schema-protocol-2.0.xsd'
)
security = self.__settings.get_security_data()
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(
request_data)
# Check if the InResponseTo of the Response matchs the ID of the AuthNRequest (requestId) if provided
in_response_to = self.document.get('InResponseTo', None)
if in_response_to and request_id:
if in_response_to != request_id:
raise Exception(
'The InResponseTo of the Response: %s, does not match the ID of the AuthNRequest sent by the SP: %s'
% (in_response_to, request_id))
if not self.encrypted and security['wantAssertionsEncrypted']:
raise Exception(
'The assertion of the Response is not encrypted and the SP require it'
)
if security['wantNameIdEncrypted']:
encrypted_nameid_nodes = self.__query_assertion(
'/saml:Subject/saml:EncryptedID/xenc:EncryptedData')
if len(encrypted_nameid_nodes) == 0:
raise Exception(
'The NameID of the Response is not encrypted and the SP require it'
)
# Checks that there is at least one AttributeStatement if required
attribute_statement_nodes = self.__query_assertion(
'/saml:AttributeStatement')
if security[
'wantAttributeStatement'] and not attribute_statement_nodes:
raise Exception(
'There is no AttributeStatement on the Response')
# Validates Assertion timestamps
if not self.validate_timestamps():
raise Exception(
'Timing issues (please check your clock settings)')
encrypted_attributes_nodes = self.__query_assertion(
'/saml:AttributeStatement/saml:EncryptedAttribute')
if encrypted_attributes_nodes:
raise Exception(
'There is an EncryptedAttribute in the Response and this SP not support them'
)
# Checks destination
destination = self.document.get('Destination', '')
if destination:
if not destination.startswith(current_url):
# TODO: Review if following lines are required, since we can control the
# request_data
# current_url_routed = OneLogin_Saml2_Utils.get_self_routed_url_no_query(request_data)
# if not destination.startswith(current_url_routed):
raise Exception(
'The response was received at %s instead of %s' %
(current_url, destination))
# Checks audience
valid_audiences = self.get_audiences()
if valid_audiences and sp_entity_id not in valid_audiences:
raise Exception(
'%s is not a valid audience for this Response' %
sp_entity_id)
# Checks the issuers
issuers = self.get_issuers()
for issuer in issuers:
if issuer is None or issuer != idp_entity_id:
raise Exception(
'Invalid issuer in the Assertion/Response')
# Checks the session Expiration
session_expiration = self.get_session_not_on_or_after()
if session_expiration and session_expiration <= OneLogin_Saml2_Utils.now(
):
raise Exception(
'The attributes have expired, based on the SessionNotOnOrAfter of the AttributeStatement of this Response'
)
# Checks the SubjectConfirmation, at least one SubjectConfirmation must be valid
any_subject_confirmation = False
subject_confirmation_nodes = self.__query_assertion(
'/saml:Subject/saml:SubjectConfirmation')
for scn in subject_confirmation_nodes:
method = scn.get('Method', None)
if method and method != OneLogin_Saml2_Constants.CM_BEARER:
continue
sc_data = scn.find(
'saml:SubjectConfirmationData',
namespaces=OneLogin_Saml2_Constants.NSMAP)
if sc_data is None:
continue
else:
irt = sc_data.get('InResponseTo', None)
if irt != in_response_to:
continue
recipient = sc_data.get('Recipient', None)
if recipient and current_url not in recipient:
continue
nooa = sc_data.get('NotOnOrAfter', None)
if nooa:
parsed_nooa = OneLogin_Saml2_Utils.parse_SAML_to_time(
nooa)
if parsed_nooa <= OneLogin_Saml2_Utils.now():
continue
nb = sc_data.get('NotBefore', None)
if nb:
parsed_nb = OneLogin_Saml2_Utils.parse_SAML_to_time(
nb)
if parsed_nb > OneLogin_Saml2_Utils.now():
continue
any_subject_confirmation = True
break
if not any_subject_confirmation:
raise Exception(
'A valid SubjectConfirmation was not found on this Response'
)
if security['wantAssertionsSigned'] and (
'{%s}Assertion' % OneLogin_Saml2_Constants.NS_SAML
) not in signed_elements:
raise Exception(
'The Assertion of the Response is not signed and the SP require it'
)
if security['wantMessagesSigned'] and (
'{%s}Response' % OneLogin_Saml2_Constants.NS_SAMLP
) not in signed_elements:
raise Exception(
'The Message of the Response is not signed and the SP require it'
)
if len(signed_elements) > 0:
if len(signed_elements) > 2:
raise Exception(
'Too many Signatures found. SAML Response rejected')
cert = idp_data['x509cert']
fingerprint = idp_data['certFingerprint']
fingerprintalg = idp_data['certFingerprintAlgorithm']
# If find a Signature on the Response, validates it checking the original response
if '{%s}Response' % OneLogin_Saml2_Constants.NS_SAMLP in signed_elements:
document_to_validate = self.document
# Otherwise validates the assertion (decrypted assertion if was encrypted)
else:
if self.encrypted:
document_to_validate = self.decrypted_document
else:
document_to_validate = self.document
if not OneLogin_Saml2_Utils.validate_sign(
document_to_validate, cert, fingerprint,
fingerprintalg):
raise Exception(
'Signature validation failed. SAML Response rejected')
else:
raise Exception('No Signature found. SAML Response rejected')
return True
except Exception as err:
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
return False
def is_valid(self, request_data, request_id=None, raise_exceptions=False):
"""
Determines if the SAML LogoutResponse is valid
:param request_id: The ID of the LogoutRequest sent by this SP to the IdP
:type request_id: string
:param raise_exceptions: Whether to return false on failure or raise an exception
:type raise_exceptions: Boolean
:return: Returns if the SAML LogoutResponse is or not valid
:rtype: boolean
"""
self.__error = None
try:
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
get_data = request_data['get_data']
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(
self.document, 'saml-schema-protocol-2.0.xsd',
self.__settings.is_debug_active())
if isinstance(res, str):
raise OneLogin_Saml2_ValidationError(
'Invalid SAML Logout Request. Not match the saml-schema-protocol-2.0.xsd',
OneLogin_Saml2_ValidationError.INVALID_XML_FORMAT)
security = self.__settings.get_security_data()
# Check if the InResponseTo of the Logout Response matches the ID of the Logout Request (requestId) if provided
in_response_to = self.document.get('InResponseTo', None)
if request_id is not None and in_response_to and in_response_to != request_id:
raise OneLogin_Saml2_ValidationError(
'The InResponseTo of the Logout Response: %s, does not match the ID of the Logout request sent by the SP: %s'
% (in_response_to, request_id),
OneLogin_Saml2_ValidationError.WRONG_INRESPONSETO)
# Check issuer
issuer = self.get_issuer()
if issuer is not None and issuer != idp_entity_id:
raise OneLogin_Saml2_ValidationError(
'Invalid issuer in the Logout Request',
OneLogin_Saml2_ValidationError.WRONG_ISSUER)
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(
request_data)
# Check destination
destination = self.document.get('Destination', None)
if destination and current_url not in destination:
raise OneLogin_Saml2_ValidationError(
'The LogoutResponse was received at %s instead of %s' %
(current_url, destination),
OneLogin_Saml2_ValidationError.WRONG_DESTINATION)
if security['wantMessagesSigned']:
if 'Signature' not in get_data:
raise OneLogin_Saml2_ValidationError(
'The Message of the Logout Response is not signed and the SP require it',
OneLogin_Saml2_ValidationError.NO_SIGNED_MESSAGE)
return True
# pylint: disable=R0801
except Exception as err:
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
if raise_exceptions:
raise
return False
def is_valid(self, request_data, raise_exceptions=False):
"""
Checks if the Logout Request received is valid
:param request_data: Request Data
:type request_data: dict
:param raise_exceptions: Whether to return false on failure or raise an exception
:type raise_exceptions: Boolean
:return: If the Logout Request is or not valid
:rtype: boolean
"""
self.__error = None
try:
root = OneLogin_Saml2_XML.to_etree(self.__logout_request)
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
get_data = ('get_data' in request_data and request_data['get_data']) or dict()
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(root, 'saml-schema-protocol-2.0.xsd', self.__settings.is_debug_active())
if isinstance(res, str):
raise OneLogin_Saml2_ValidationError(
'Invalid SAML Logout Request. Not match the saml-schema-protocol-2.0.xsd',
OneLogin_Saml2_ValidationError.INVALID_XML_FORMAT
)
security = self.__settings.get_security_data()
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(request_data)
# Check NotOnOrAfter
if root.get('NotOnOrAfter', None):
na = OneLogin_Saml2_Utils.parse_SAML_to_time(root.get('NotOnOrAfter'))
if na <= OneLogin_Saml2_Utils.now():
raise OneLogin_Saml2_ValidationError(
'Could not validate timestamp: expired. Check system clock.)',
OneLogin_Saml2_ValidationError.RESPONSE_EXPIRED
)
# Check destination
if root.get('Destination', None):
destination = root.get('Destination')
if destination != '':
if current_url not in destination:
raise OneLogin_Saml2_ValidationError(
'The LogoutRequest was received at '
'%(currentURL)s instead of %(destination)s' %
{
'currentURL': current_url,
'destination': destination,
},
OneLogin_Saml2_ValidationError.WRONG_DESTINATION
)
# Check issuer
issuer = OneLogin_Saml2_Logout_Request.get_issuer(root)
if issuer is not None and issuer != idp_entity_id:
raise OneLogin_Saml2_ValidationError(
'Invalid issuer in the Logout Request (expected %(idpEntityId)s, got %(issuer)s)' %
{
'idpEntityId': idp_entity_id,
'issuer': issuer
},
OneLogin_Saml2_ValidationError.WRONG_ISSUER
)
if security['wantMessagesSigned']:
if 'Signature' not in get_data:
raise OneLogin_Saml2_ValidationError(
'The Message of the Logout Request is not signed and the SP require it',
OneLogin_Saml2_ValidationError.NO_SIGNED_MESSAGE
)
return True
except Exception as err:
# pylint: disable=R0801
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
if raise_exceptions:
raise
return False
def is_valid(self, request_data):
"""
Checks if the Logout Request recieved is valid
:param request_data: Request Data
:type request_data: dict
:return: If the Logout Request is or not valid
:rtype: boolean
"""
self.__error = None
try:
root = OneLogin_Saml2_XML.to_etree(self.__logout_request)
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
get_data = ('get_data' in request_data and request_data['get_data']) or dict()
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(root, 'saml-schema-protocol-2.0.xsd', self.__settings.is_debug_active())
if isinstance(res, str):
raise Exception('Invalid SAML Logout Request. Not match the saml-schema-protocol-2.0.xsd')
security = self.__settings.get_security_data()
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(request_data)
# Check NotOnOrAfter
if root.get('NotOnOrAfter', None):
na = OneLogin_Saml2_Utils.parse_SAML_to_time(root.get('NotOnOrAfter'))
if na <= OneLogin_Saml2_Utils.now():
raise Exception('Timing issues (please check your clock settings)')
# Check destination
if root.get('Destination', None):
destination = root.get('Destination')
if destination != '':
if current_url not in destination:
raise Exception(
'The LogoutRequest was received at '
'%(currentURL)s instead of %(destination)s' %
{
'currentURL': current_url,
'destination': destination,
}
)
# Check issuer
issuer = OneLogin_Saml2_Logout_Request.get_issuer(root)
if issuer is not None and issuer != idp_entity_id:
raise Exception('Invalid issuer in the Logout Request')
if security['wantMessagesSigned']:
if 'Signature' not in get_data:
raise Exception('The Message of the Logout Request is not signed and the SP require it')
return True
except Exception as err:
# pylint: disable=R0801
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
return False
def is_valid(self, request_data, request_id=None):
"""
Validates the response object.
:param request_data: Request Data
:type request_data: dict
:param request_id: Optional argument. The ID of the AuthNRequest sent by this SP to the IdP
:type request_id: string
:returns: True if the SAML Response is valid, False if not
:rtype: bool
"""
self.__error = None
try:
# Checks SAML version
if self.document.get('Version', None) != '2.0':
raise Exception('Unsupported SAML version')
# Checks that ID exists
if self.document.get('ID', None) is None:
raise Exception('Missing ID attribute on SAML Response')
# Checks that the response only has one assertion
if not self.validate_num_assertions():
raise Exception('SAML Response must contain 1 assertion')
# Checks that the response has the SUCCESS status
self.check_status()
idp_data = self.__settings.get_idp_data()
idp_entity_id = idp_data['entityId']
sp_data = self.__settings.get_sp_data()
sp_entity_id = sp_data['entityId']
sign_nodes = self.__query('//ds:Signature')
signed_elements = []
for sign_node in sign_nodes:
signed_elements.append(sign_node.getparent().tag)
if self.__settings.is_strict():
res = OneLogin_Saml2_XML.validate_xml(self.document, 'saml-schema-protocol-2.0.xsd', self.__settings.is_debug_active())
if isinstance(res, str):
raise Exception('Invalid SAML Response. Not match the saml-schema-protocol-2.0.xsd')
security = self.__settings.get_security_data()
current_url = OneLogin_Saml2_Utils.get_self_url_no_query(request_data)
# Check if the InResponseTo of the Response matchs the ID of the AuthNRequest (requestId) if provided
in_response_to = self.document.get('InResponseTo', None)
if in_response_to and request_id:
if in_response_to != request_id:
raise Exception('The InResponseTo of the Response: %s, does not match the ID of the AuthNRequest sent by the SP: %s' % (in_response_to, request_id))
if not self.encrypted and security['wantAssertionsEncrypted']:
raise Exception('The assertion of the Response is not encrypted and the SP require it')
if security['wantNameIdEncrypted']:
encrypted_nameid_nodes = self.__query_assertion('/saml:Subject/saml:EncryptedID/xenc:EncryptedData')
if len(encrypted_nameid_nodes) == 0:
raise Exception('The NameID of the Response is not encrypted and the SP require it')
# Checks that there is at least one AttributeStatement if required
attribute_statement_nodes = self.__query_assertion('/saml:AttributeStatement')
if security['wantAttributeStatement'] and not attribute_statement_nodes:
raise Exception('There is no AttributeStatement on the Response')
# Validates Assertion timestamps
if not self.validate_timestamps():
raise Exception('Timing issues (please check your clock settings)')
encrypted_attributes_nodes = self.__query_assertion('/saml:AttributeStatement/saml:EncryptedAttribute')
if encrypted_attributes_nodes:
raise Exception('There is an EncryptedAttribute in the Response and this SP not support them')
# Checks destination
destination = self.document.get('Destination', '')
if destination:
if not destination.startswith(current_url):
# TODO: Review if following lines are required, since we can control the
# request_data
# current_url_routed = OneLogin_Saml2_Utils.get_self_routed_url_no_query(request_data)
# if not destination.startswith(current_url_routed):
raise Exception('The response was received at %s instead of %s' % (current_url, destination))
# Checks audience
valid_audiences = self.get_audiences()
if valid_audiences and sp_entity_id not in valid_audiences:
raise Exception('%s is not a valid audience for this Response' % sp_entity_id)
# Checks the issuers
issuers = self.get_issuers()
for issuer in issuers:
if issuer is None or issuer != idp_entity_id:
raise Exception('Invalid issuer in the Assertion/Response')
# Checks the session Expiration
session_expiration = self.get_session_not_on_or_after()
if session_expiration and session_expiration <= OneLogin_Saml2_Utils.now():
raise Exception('The attributes have expired, based on the SessionNotOnOrAfter of the AttributeStatement of this Response')
# Checks the SubjectConfirmation, at least one SubjectConfirmation must be valid
any_subject_confirmation = False
subject_confirmation_nodes = self.__query_assertion('/saml:Subject/saml:SubjectConfirmation')
for scn in subject_confirmation_nodes:
method = scn.get('Method', None)
if method and method != OneLogin_Saml2_Constants.CM_BEARER:
continue
sc_data = scn.find('saml:SubjectConfirmationData', namespaces=OneLogin_Saml2_Constants.NSMAP)
if sc_data is None:
continue
else:
irt = sc_data.get('InResponseTo', None)
if in_response_to and irt and irt != in_response_to:
continue
recipient = sc_data.get('Recipient', None)
if recipient and current_url not in recipient:
continue
nooa = sc_data.get('NotOnOrAfter', None)
if nooa:
parsed_nooa = OneLogin_Saml2_Utils.parse_SAML_to_time(nooa)
if parsed_nooa <= OneLogin_Saml2_Utils.now():
continue
nb = sc_data.get('NotBefore', None)
if nb:
parsed_nb = OneLogin_Saml2_Utils.parse_SAML_to_time(nb)
if parsed_nb > OneLogin_Saml2_Utils.now():
continue
any_subject_confirmation = True
break
if not any_subject_confirmation:
raise Exception('A valid SubjectConfirmation was not found on this Response')
if security['wantAssertionsSigned'] and ('{%s}Assertion' % OneLogin_Saml2_Constants.NS_SAML) not in signed_elements:
raise Exception('The Assertion of the Response is not signed and the SP require it')
if security['wantMessagesSigned'] and ('{%s}Response' % OneLogin_Saml2_Constants.NS_SAMLP) not in signed_elements:
raise Exception('The Message of the Response is not signed and the SP require it')
if len(signed_elements) > 0:
if len(signed_elements) > 2:
raise Exception('Too many Signatures found. SAML Response rejected')
cert = idp_data['x509cert']
fingerprint = idp_data['certFingerprint']
fingerprintalg = idp_data['certFingerprintAlgorithm']
# If find a Signature on the Response, validates it checking the original response
if '{%s}Response' % OneLogin_Saml2_Constants.NS_SAMLP in signed_elements:
document_to_validate = self.document
# Otherwise validates the assertion (decrypted assertion if was encrypted)
else:
if self.encrypted:
document_to_validate = self.decrypted_document
else:
document_to_validate = self.document
if not OneLogin_Saml2_Utils.validate_sign(document_to_validate, cert, fingerprint, fingerprintalg):
raise Exception('Signature validation failed. SAML Response rejected')
else:
raise Exception('No Signature found. SAML Response rejected')
return True
except Exception as err:
self.__error = str(err)
debug = self.__settings.is_debug_active()
if debug:
print(err)
return False
