Code factorisation in views.py
This commit is contained in:
Valentin Samir
parent
d46428520f
commit
aaadca15b7
@ -45,6 +45,7 @@ logger = logging.getLogger(__name__)
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class LogoutMixin(object):
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"""destroy CAS session utils"""
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def logout(self, all_session=False):
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"""
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effectively destroy a CAS session
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@ -63,43 +64,53 @@ class LogoutMixin(object):
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logger.info("Logging out user %s from all of they sessions." % username)
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else:
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logger.info("Logging out user %s." % username)
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# logout the user from the current session
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users = []
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# try to get the user from the current session
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try:
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user = models.User.objects.get(
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username=username,
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session_key=self.request.session.session_key
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users.append(
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models.User.objects.get(
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username=username,
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session_key=self.request.session.session_key
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)
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)
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# flush the session
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except models.User.DoesNotExist:
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# if user not found in database, flush the session anyway
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self.request.session.flush()
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# If all_session is set, search all of the user sessions
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if all_session:
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users.extend(models.User.objects.filter(username=username))
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# Iterate over all user sessions that have to be logged out
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for user in users:
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# get the user session
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session = SessionStore(session_key=user.session_key)
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# flush the session
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session.flush()
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# send SLO requests
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user.logout(self.request)
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# delete the user
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user.delete()
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# increment the destroyed session counter
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session_nb += 1
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except models.User.DoesNotExist:
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# if user not found in database, flush the session anyway
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self.request.session.flush()
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# If all_session is set logout user from alternative sessions
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if all_session:
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# Iterate over all user sessions
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for user in models.User.objects.filter(username=username):
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# get the user session
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session = SessionStore(session_key=user.session_key)
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# flush the session
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session.flush()
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# send SLO requests
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user.logout(self.request)
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# delete the user
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user.delete()
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# increment the destroyed session counter
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session_nb += 1
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if username:
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logger.info("User %s logged out" % username)
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return session_nb
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class CsrfExemptView(View):
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"""base class for csrf exempt class views"""
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@method_decorator(csrf_exempt) # csrf is disabled for allowing SLO requests reception
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def dispatch(self, request, *args, **kwargs):
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"""
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dispatch different http request to the methods of the same name
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:param django.http.HttpRequest request: The current request object
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"""
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return super(CsrfExemptView, self).dispatch(request, *args, **kwargs)
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class LogoutView(View, LogoutMixin):
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"""destroy CAS session (logout) view"""
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@ -210,17 +221,12 @@ class LogoutView(View, LogoutMixin):
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)
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class FederateAuth(View):
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"""view to authenticated user agains a backend CAS then CAS_FEDERATE is True"""
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class FederateAuth(CsrfExemptView):
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"""
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view to authenticated user agains a backend CAS then CAS_FEDERATE is True
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@method_decorator(csrf_exempt) # csrf is disabled for allowing SLO requests reception
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def dispatch(self, request, *args, **kwargs):
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"""
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dispatch different http request to the methods of the same name
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:param django.http.HttpRequest request: The current request object
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"""
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return super(FederateAuth, self).dispatch(request, *args, **kwargs)
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csrf is disabled for allowing SLO requests reception.
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"""
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def get_cas_client(self, request, provider, renew=False):
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"""
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@ -923,18 +929,13 @@ class LoginView(View, LogoutMixin):
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return self.not_authenticated()
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class Auth(View):
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"""A simple view to validate username/password/service tuple"""
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# csrf is disable as it is intended to be used by programs. Security is assured by a shared
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# secret between the programs dans django-cas-server.
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@method_decorator(csrf_exempt)
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def dispatch(self, request, *args, **kwargs):
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"""
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dispatch requests based on method GET, POST, ...
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class Auth(CsrfExemptView):
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"""
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A simple view to validate username/password/service tuple
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:param django.http.HttpRequest request: The current request object
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"""
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return super(Auth, self).dispatch(request, *args, **kwargs)
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csrf is disable as it is intended to be used by programs. Security is assured by a shared
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secret between the programs dans django-cas-server.
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"""
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@staticmethod
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def post(request):
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@ -1041,8 +1042,9 @@ class Validate(View):
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@python_2_unicode_compatible
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class ValidateError(Exception):
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"""handle service validation error"""
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class ValidationBaseError(Exception):
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"""Base class for both saml and cas validation error"""
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#: The error code
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code = None
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#: The error message
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@ -1064,12 +1066,23 @@ class ValidateError(Exception):
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:return: the rendered ``cas_server/serviceValidateError.xml`` template
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:rtype: django.http.HttpResponse
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"""
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return render(
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request,
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"cas_server/serviceValidateError.xml",
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{'code': self.code, 'msg': self.msg},
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content_type="text/xml; charset=utf-8"
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)
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return render(request, self.template, self.contex(), content_type="text/xml; charset=utf-8")
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class ValidateError(ValidationBaseError):
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"""handle service validation error"""
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#: template to be render for the error
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template = "cas_server/serviceValidateError.xml"
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def context(self):
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"""
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content to use to render :attr:`template`
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:return: A dictionary to contextualize :attr:`template`
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:rtype: dict
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"""
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return {'code': self.code, 'msg': self.msg}
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class ValidateService(View):
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@ -1333,59 +1346,32 @@ class Proxy(View):
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)
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@python_2_unicode_compatible
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class SamlValidateError(Exception):
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class SamlValidateError(ValidationBaseError):
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"""handle saml validation error"""
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#: The error code
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code = None
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#: The error message
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msg = None
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def __init__(self, code, msg=""):
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self.code = code
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self.msg = msg
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super(SamlValidateError, self).__init__(code)
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#: template to be render for the error
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template = "cas_server/samlValidateError.xml"
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def __str__(self):
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return u"%s" % self.msg
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def render(self, request):
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def context(self):
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"""
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render the error template for the exception
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:param django.http.HttpRequest request: The current request object:
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:return: the rendered ``cas_server/samlValidateError.xml`` template
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:rtype: django.http.HttpResponse
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:return: A dictionary to contextualize :attr:`template`
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:rtype: dict
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"""
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return render(
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request,
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"cas_server/samlValidateError.xml",
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{
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'code': self.code,
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'msg': self.msg,
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'IssueInstant': timezone.now().isoformat(),
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'ResponseID': utils.gen_saml_id()
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},
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content_type="text/xml; charset=utf-8"
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)
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return {
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'code': self.code,
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'msg': self.msg,
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'IssueInstant': timezone.now().isoformat(),
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'ResponseID': utils.gen_saml_id()
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}
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class SamlValidate(View):
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class SamlValidate(CsrfExemptView):
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"""SAML ticket validation"""
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request = None
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target = None
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ticket = None
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root = None
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@method_decorator(csrf_exempt)
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def dispatch(self, request, *args, **kwargs):
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"""
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dispatch requests based on method GET, POST, ...
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:param django.http.HttpRequest request: The current request object
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"""
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return super(SamlValidate, self).dispatch(request, *args, **kwargs)
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def post(self, request):
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"""
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methode called on POST request on this view
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