diff --git a/allauth_archiens/__init__.py b/allauth_archiens/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/allauth_archiens/admin.py b/allauth_archiens/admin.py
new file mode 100644
index 0000000..13be29d
--- /dev/null
+++ b/allauth_archiens/admin.py
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.contrib import admin
+
+# Register your models here.
diff --git a/allauth_archiens/apps.py b/allauth_archiens/apps.py
new file mode 100644
index 0000000..5339aac
--- /dev/null
+++ b/allauth_archiens/apps.py
@@ -0,0 +1,8 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+
+
+class AllauthArchiensConfig(AppConfig):
+    name = 'allauth_archiens'
diff --git a/allauth_archiens/migrations/__init__.py b/allauth_archiens/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/allauth_archiens/models.py b/allauth_archiens/models.py
new file mode 100644
index 0000000..1dfab76
--- /dev/null
+++ b/allauth_archiens/models.py
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models
+
+# Create your models here.
diff --git a/allauth_archiens/provider.py b/allauth_archiens/provider.py
new file mode 100644
index 0000000..0b92e3e
--- /dev/null
+++ b/allauth_archiens/provider.py
@@ -0,0 +1,80 @@
+from allauth_ens.providers.clipper.provider import ClipperProvider
+import ldap
+
+class LongTermClipperProvider(ClipperProvider):
+    id = 'longterm_clipper'
+    
+    def extract_uid(self, data):
+        # Normalize UID
+        uid, _ = data
+        uid = uid.lower().strip()
+        more_data = self.get_ldap_infos(uid)
+        uid = "%s_%s" % (uid, more_data.get("annee", "00"))
+        print(uid)
+        return uid
+    
+    def get_ldap_infos(self, clipper):
+        if hasattr(self, "_ldap_infos"):
+            return self._ldap_infos
+        data = {}
+        assert clipper.isalnum()
+        try:
+            ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT,
+                            ldap.OPT_X_TLS_NEVER)
+            l = ldap.initialize("ldaps://ldap.spi.ens.fr:636")
+            l.set_option(ldap.OPT_REFERRALS, 0)
+            l.set_option(ldap.OPT_PROTOCOL_VERSION, 3)
+            l.set_option(ldap.OPT_X_TLS, ldap.OPT_X_TLS_DEMAND)
+            l.set_option(ldap.OPT_X_TLS_DEMAND, True)
+            l.set_option(ldap.OPT_DEBUG_LEVEL, 255)
+            l.set_option(ldap.OPT_NETWORK_TIMEOUT, 10)
+            l.set_option(ldap.OPT_TIMEOUT, 10)
+
+            info = l.search_s('dc=spi,dc=ens,dc=fr',
+                              ldap.SCOPE_SUBTREE,
+                              ('(uid=%s)' % (clipper,)),
+                              [str("cn"),
+                               str("mailRoutingAddress"),
+                               str("homeDirectory") ])
+
+            if len(info) > 0:
+                infos = info[0][1]
+
+                # Nom
+                data['nom'] = infos.get('cn', [''])[0].decode("utf-8")
+
+                # Parsing du homeDirectory pour la promotion
+                annee = '00'
+                promotion = 'Inconnue'
+
+                if 'homeDirectory' in infos:
+                    dirs = infos['homeDirectory'][0].split('/')
+                    if dirs[1] == 'users':
+                        annee = dirs[2]
+                        dep = dirs[3]
+                        dep = dict(DEPARTEMENTS_DEFAUT).get(dep.lower(), '')
+                        promotion = u'%s %s' % (dep, annee)
+                data['annee'] = annee
+                data['promotion'] = promotion
+
+                # Mail
+                pmail = infos.get('mailRoutingAddress', [])
+                data['email'] = '{}@clipper.ens.fr'.format(clipper.strip().lower()) if len(pmail) == 0 else pmail[0]
+
+
+        except ldap.LDAPError:
+            pass
+
+        self._ldap_infos = data
+        return data
+
+    def extract_common_fields(self, data):
+        common = super(ClipperProvider, self).extract_common_fields(data)
+        infos = self.get_ldap_infos(common['username'])
+        common['email'] = infos.get('email',
+                                    '{}@clipper.ens.fr'.format(common['username'].strip().lower()))
+        common['name'] = infos.get('nom', common['username'])
+        return common
+
+
+provider_classes = [LongTermClipperProvider]
diff --git a/allauth_archiens/tests.py b/allauth_archiens/tests.py
new file mode 100644
index 0000000..5982e6b
--- /dev/null
+++ b/allauth_archiens/tests.py
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/allauth_archiens/urls.py b/allauth_archiens/urls.py
new file mode 100644
index 0000000..07f0264
--- /dev/null
+++ b/allauth_archiens/urls.py
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+from allauth_cas.urls import default_urlpatterns
+
+from .provider import LongTermClipperProvider
+
+urlpatterns = default_urlpatterns(LongTermClipperProvider)
diff --git a/allauth_archiens/views.py b/allauth_archiens/views.py
new file mode 100644
index 0000000..7b48532
--- /dev/null
+++ b/allauth_archiens/views.py
@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+from allauth_cas import views
+
+from .provider import LongTermClipperProvider
+
+
+class LongTermClipperCASAdapter(views.CASAdapter):
+    provider_id = LongTermClipperProvider.id
+    url = 'https://cas.eleves.ens.fr'
+    version = 3
+
+
+login = views.CASLoginView.adapter_view(LongTermClipperCASAdapter)
+callback = views.CASCallbackView.adapter_view(LongTermClipperCASAdapter)
+logout = views.CASLogoutView.adapter_view(LongTermClipperCASAdapter)