Function to create an MIT user with LDAP data

[Scripts/git/.git] / __init__.py

diff --git a/__init__.py b/__init__.py
index 8f785ae9b8b6331debfaacc5edf9ea92b115bc5e..725d660b713858074dd409407f40da558f02df7f 100644 (file)
--- a/__init__.py
+++ b/__init__.py
@@ -1,3 +1,7 @@
+import subprocess
+import ldap
+import ldap.filter
+
 from django.contrib.auth.middleware import RemoteUserMiddleware
 from django.contrib.auth.backends import RemoteUserBackend
 from django.contrib.auth.views import login
@@ -7,9 +11,12 @@ from django.contrib import auth
 from django.core.exceptions import ObjectDoesNotExist
 import settings
 
-def zephyr(msg, clas='remit', instance='log', rcpt='adehnert',):
-    import os
-    os.system("zwrite -d -c '%s' -i '%s' '%s' -m '%s'" % (clas, instance, rcpt, msg, ))
+def zephyr(msg, clas='message', instance='log', rcpt='nobody',):
+    proc = subprocess.Popen(
+        ['zwrite', '-d', '-n', '-c', clas, '-i', instance, rcpt, ],
+        stdin=subprocess.PIPE, stdout=subprocess.PIPE
+    )
+    proc.communicate(msg)
 
 class ScriptsRemoteUserMiddleware(RemoteUserMiddleware):
     header = 'SSL_CLIENT_S_DN_Email'
@@ -24,12 +31,13 @@ class ScriptsRemoteUserBackend(RemoteUserBackend):
             return username
     def configure_user(self, user, ):
         username = user.username
-        import ldap
-        con = ldap.open('ldap.mit.edu')
+        user.password = "ScriptsSSLAuth"
+        con = ldap.open('ldap-too.mit.edu')
         con.simple_bind_s("", "")
         dn = "dc=mit,dc=edu"
         fields = ['cn', 'sn', 'givenName', 'mail', ]
-        result = con.search_s('dc=mit,dc=edu', ldap.SCOPE_SUBTREE, 'uid=%s'%username, fields)
+        userfilter = ldap.filter.filter_format('uid=%s', [username])
+        result = con.search_s('dc=mit,dc=edu', ldap.SCOPE_SUBTREE, userfilter, fields)
         if len(result) == 1:
             user.first_name = result[0][1]['givenName'][0]
             user.last_name = result[0][1]['sn'][0]
@@ -38,13 +46,33 @@ class ScriptsRemoteUserBackend(RemoteUserBackend):
                 user.groups.add(auth.models.Group.objects.get(name='mit'))
             except ObjectDoesNotExist:
                 print "Failed to retrieve mit group"
-            user.save()
+        else:
+            raise ValueError, ("Could not find user with username '%s' (filter '%s')"%(username, userfilter))
         try:
             user.groups.add(auth.models.Group.objects.get(name='autocreated'))
         except ObjectDoesNotExist:
             print "Failed to retrieve autocreated group"
+        user.save()
         return user
 
+def get_or_create_mit_user(username, ):
+    """
+    Given an MIT username, return a Django user object for them.
+    If necessary, create (and save) the Django user for them.
+    If the MIT user doesn't exist, raises ValueError.
+    """
+    user, created = auth.models.User.objects.get_or_create(username=username, )
+    if created:
+        backend = ScriptsRemoteUserBackend()
+        # Raises ValueError if the user doesn't exist
+        try:
+            return backend.configure_user(user), created
+        except ValueError:
+            user.delete()
+            raise
+    else:
+        return user, created
+
 def scripts_login(request, **kwargs):
     host = request.META['HTTP_HOST'].split(':')[0]
     if host == 'localhost':