def verify(ticket, service):
"""Verifies CAS 2.0+ XML-based authentication ticket.
Returns username on success and None on failure.
"""
params = {'ticket': ticket, 'service': service}
# TODO: ensure that url uses https
url = urljoin(settings.CAS_SERVER_URL, 'serviceValidate')
r = requests.get(url, params=params)
try:
response = r.text
tree = ElementTree.fromstring(response)
#Useful for debugging
#from xml.dom.minidom import parseString
#from xml.etree import ElementTree
#txt = ElementTree.tostring(tree)
#print parseString(txt).toprettyxml()
if tree[0].tag.endswith('authenticationSuccess'):
if settings.CAS_RESPONSE_CALLBACKS:
cas_response_callbacks(tree)
return tree[0][0].text
else:
return None
except Exception as e:
raise e
def _internal_verify_cas(ticket, service, sufix):
"""Verifies CAS 2.0 and 3.0 XML-based authentication ticket.
Returns username on success and None on failure.
"""
try:
from xml.etree import ElementTree
except ImportError:
from elementtree import ElementTree
if settings.CAS_PROXY_CALLBACK:
params = {
'ticket': ticket,
'service': service,
'pgtUrl': settings.CAS_PROXY_CALLBACK
}
else:
params = {'ticket': ticket, 'service': service}
url = (urljoin(settings.CAS_SERVER_URL, sufix) + '?' + urlencode(params))
page = urlopen(url)
try:
response = page.read()
tree = ElementTree.fromstring(response)
#Useful for debugging
#from xml.dom.minidom import parseString
#from xml.etree import ElementTree
#txt = ElementTree.tostring(tree)
#print parseString(txt).toprettyxml()
if tree[0].tag.endswith('authenticationSuccess'):
if settings.CAS_RESPONSE_CALLBACKS:
cas_response_callbacks(tree)
return tree[0][0].text
else:
return None
finally:
page.close()
def _verify_cas2(ticket, service):
"""Verifies CAS 2.0+ XML-based authentication ticket.
Returns username on success and None on failure.
"""
try:
from xml.etree import ElementTree
except ImportError:
from elementtree import ElementTree
if settings.CAS_PROXY_CALLBACK:
params = {'ticket': ticket, 'service': service, 'pgtUrl': settings.CAS_PROXY_CALLBACK}
else:
params = {'ticket': ticket, 'service': service}
url = (urljoin(settings.CAS_SERVER_URL, 'proxyValidate') + '?' +
urlencode(params))
page = urlopen(url)
try:
response = page.read()
tree = ElementTree.fromstring(response)
#Useful for debugging
#from xml.dom.minidom import parseString
#from xml.etree import ElementTree
#txt = ElementTree.tostring(tree)
#print parseString(txt).toprettyxml()
if tree[0].tag.endswith('authenticationSuccess'):
if settings.CAS_RESPONSE_CALLBACKS:
cas_response_callbacks(tree)
return tree[0][0].text
else:
return None
finally:
page.close()
