def createAttributes(self):
"""Create SAML Attributes for use in an Assertion or AttributeQuery"""
attributes = []
if self.firstName is not None:
# special case handling for 'FirstName' attribute
fnAttribute = Attribute()
fnAttribute.name = "urn:esg:first:name"
fnAttribute.nameFormat = SAMLUtil.XSSTRING_NS
fnAttribute.friendlyName = "FirstName"
firstName = XSStringAttributeValue()
firstName.value = self.firstName
fnAttribute.attributeValues.append(firstName)
attributes.append(fnAttribute)
if self.lastName is not None:
# special case handling for 'LastName' attribute
lnAttribute = Attribute()
lnAttribute.name = "urn:esg:last:name"
lnAttribute.nameFormat = SAMLUtil.XSSTRING_NS
lnAttribute.friendlyName = "LastName"
lastName = XSStringAttributeValue()
lastName.value = self.lastName
lnAttribute.attributeValues.append(lastName)
attributes.append(lnAttribute)
if self.emailAddress is not None:
# special case handling for 'LastName' attribute
emailAddressAttribute = Attribute()
emailAddressAttribute.name = "urn:esg:email:address"
emailAddressAttribute.nameFormat = SAMLConstants.XSD_NS+"#"+\
XSStringAttributeValue.TYPE_LOCAL_NAME
emailAddressAttribute.friendlyName = "emailAddress"
emailAddress = XSStringAttributeValue()
emailAddress.value = self.emailAddress
emailAddressAttribute.attributeValues.append(emailAddress)
attributes.append(emailAddressAttribute)
for name, value in self.__miscAttrList:
attribute = Attribute()
attribute.name = name
attribute.nameFormat = SAMLUtil.XSSTRING_NS
stringAttributeValue = XSStringAttributeValue()
stringAttributeValue.value = value
attribute.attributeValues.append(stringAttributeValue)
attributes.append(attribute)
return attributes
def xsstringAttributeValueParser(self, attrVal):
"""Convert string attribute value retrieved from database query into
the respective SAML Attribute Value type
"""
xsstringAttrVal = XSStringAttributeValue()
xsstringAttrVal.value = attrVal
return xsstringAttrVal
def xsstringAttributeValueParser(self, attrVal):
"""Convert string attribute value retrieved from database query into
the respective SAML Attribute Value type
"""
xsstringAttrVal = XSStringAttributeValue()
xsstringAttrVal.value = attrVal
return xsstringAttrVal
def attributeQuery(query, response):
"""Attribute Query interface called by the next middleware in the
stack the SAML SOAP Query interface middleware instance
(ndg.saml.saml2.binding.soap.server.wsgi.queryinterface.SOAPQueryInterfaceMiddleware)
"""
response.issueInstant = datetime.utcnow()
response.id = str(uuid4())
response.inResponseTo = query.id
if query.issuer.value not in self.__class__.VALID_QUERY_ISSUERS:
response.status.statusCode.value = \
StatusCode.REQUEST_DENIED_URI
response.status.statusMessage.value = 'Invalid issuer'
return response
if query.subject.nameID.value not in self.__class__.VALID_SUBJECTS:
response.status.statusCode.value = \
StatusCode.UNKNOWN_PRINCIPAL_URI
response.status.statusMessage.value = 'Unknown user'
return response
assertion = Assertion()
assertion.version = SAMLVersion(SAMLVersion.VERSION_20)
assertion.id = str(uuid4())
assertion.issueInstant = response.issueInstant
assertion.conditions = Conditions()
assertion.conditions.notBefore = assertion.issueInstant
assertion.conditions.notOnOrAfter = \
assertion.conditions.notBefore + timedelta(seconds=60*60*8)
assertion.subject = Subject()
assertion.subject.nameID = NameID()
assertion.subject.nameID.format = query.subject.nameID.format
assertion.subject.nameID.value = query.subject.nameID.value
assertion.attributeStatements.append(AttributeStatement())
for attribute in query.attributes:
if attribute.name == self.__class__.FIRSTNAME_ATTRNAME:
# special case handling for 'FirstName' attribute
fnAttribute = Attribute()
fnAttribute.name = attribute.name
fnAttribute.nameFormat = attribute.nameFormat
fnAttribute.friendlyName = attribute.friendlyName
firstName = XSStringAttributeValue()
firstName.value = self.firstName
fnAttribute.attributeValues.append(firstName)
assertion.attributeStatements[0].attributes.append(
fnAttribute)
elif attribute.name == self.__class__.LASTNAME_ATTRNAME:
lnAttribute = Attribute()
lnAttribute.name = attribute.name
lnAttribute.nameFormat = attribute.nameFormat
lnAttribute.friendlyName = attribute.friendlyName
lastName = XSStringAttributeValue()
lastName.value = self.lastName
lnAttribute.attributeValues.append(lastName)
assertion.attributeStatements[0].attributes.append(
lnAttribute)
elif (attribute.name == self.__class__.EMAILADDRESS_ATTRNAME and
query.issuer.value ==
self.__class__.VALID_QUERY_ISSUERS[0]):
emailAddressAttribute = Attribute()
emailAddressAttribute.name = attribute.name
emailAddressAttribute.nameFormat = attribute.nameFormat
emailAddressAttribute.friendlyName = attribute.friendlyName
emailAddress = XSStringAttributeValue()
emailAddress.value = self.emailAddress
emailAddressAttribute.attributeValues.append(emailAddress)
assertion.attributeStatements[0].attributes.append(
emailAddressAttribute)
else:
response.status.statusCode.value = \
StatusCode.INVALID_ATTR_NAME_VALUE_URI
return response
response.assertions.append(assertion)
response.status.statusCode.value = StatusCode.SUCCESS_URI
return response
def __call__(self, environ, start_response):
soapRequestStream = environ['wsgi.input']
soapRequest = SOAPEnvelope()
soapRequest.parse(soapRequestStream)
attributeQueryElem = soapRequest.body.elem[0]
attributeQuery = AttributeQueryElementTree.fromXML(attributeQueryElem)
print("Received request from client:\n")
print soapRequest.prettyPrint()
samlResponse = Response()
samlResponse.issueInstant = datetime.utcnow()
samlResponse.id = str(uuid4())
samlResponse.issuer = Issuer()
# SAML 2.0 spec says format must be omitted
#samlResponse.issuer.format = Issuer.X509_SUBJECT
samlResponse.issuer.value = \
"/O=NDG/OU=BADC/CN=attributeauthority.badc.rl.ac.uk"
samlResponse.inResponseTo = attributeQuery.id
assertion = Assertion()
assertion.version = SAMLVersion(SAMLVersion.VERSION_20)
assertion.id = str(uuid4())
assertion.issueInstant = samlResponse.issueInstant
assertion.conditions = Conditions()
assertion.conditions.notBefore = assertion.issueInstant
assertion.conditions.notOnOrAfter = assertion.conditions.notBefore + \
timedelta(seconds=60*60*8)
assertion.subject = Subject()
assertion.subject.nameID = NameID()
assertion.subject.nameID.format = attributeQuery.subject.nameID.format
assertion.subject.nameID.value = attributeQuery.subject.nameID.value
assertion.attributeStatements.append(AttributeStatement())
for attribute in attributeQuery.attributes:
if attribute.name == SamlSoapBindingApp.FIRSTNAME_ATTRNAME:
# special case handling for 'FirstName' attribute
fnAttribute = Attribute()
fnAttribute.name = attribute.name
fnAttribute.nameFormat = attribute.nameFormat
fnAttribute.friendlyName = attribute.friendlyName
firstName = XSStringAttributeValue()
firstName.value = self.firstName
fnAttribute.attributeValues.append(firstName)
assertion.attributeStatements[0].attributes.append(fnAttribute)
elif attribute.name == SamlSoapBindingApp.LASTNAME_ATTRNAME:
lnAttribute = Attribute()
lnAttribute.name = attribute.name
lnAttribute.nameFormat = attribute.nameFormat
lnAttribute.friendlyName = attribute.friendlyName
lastName = XSStringAttributeValue()
lastName.value = self.lastName
lnAttribute.attributeValues.append(lastName)
assertion.attributeStatements[0].attributes.append(lnAttribute)
elif attribute.name == SamlSoapBindingApp.EMAILADDRESS_ATTRNAME:
emailAddressAttribute = Attribute()
emailAddressAttribute.name = attribute.name
emailAddressAttribute.nameFormat = attribute.nameFormat
emailAddressAttribute.friendlyName = attribute.friendlyName
emailAddress = XSStringAttributeValue()
emailAddress.value = self.emailAddress
emailAddressAttribute.attributeValues.append(emailAddress)
assertion.attributeStatements[0].attributes.append(
emailAddressAttribute)
samlResponse.assertions.append(assertion)
samlResponse.status = Status()
samlResponse.status.statusCode = StatusCode()
samlResponse.status.statusCode.value = StatusCode.SUCCESS_URI
# Convert to ElementTree representation to enable attachment to SOAP
# response body
samlResponseElem = ResponseElementTree.toXML(samlResponse)
xml = ElementTree.tostring(samlResponseElem)
log.debug('Sending response to query:\n%s', xml)
# Create SOAP response and attach the SAML Response payload
soapResponse = SOAPEnvelope()
soapResponse.create()
soapResponse.body.elem.append(samlResponseElem)
response = soapResponse.serialize()
start_response("200 OK",
[('Content-length', str(len(response))),
('Content-type', 'text/xml')])
return [response]
