Updating MBTA account certificates

gracedb/ligoauth/migrations/0009_update_mbta_account.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.5 on 2018-06-13 16:50
+#
+# This migration updates certificates for the MBTA account
+
+from __future__ import unicode_literals
+from django.db import migrations
+
+ACCOUNT = {
+    'username': 'MbtaAlert',
+    'remove_certs': [
+        '/C=IT/O=INFN/OU=Service/L=EGO/CN=MbtaAlert/olnode33.virgo.infn.it',
+        '/C=IT/O=INFN/OU=Service/L=EGO/CN=MbtaAlert/olnode04.virgo.infn.it',
+    ],
+    'new_certs': [
+        '/DC=org/DC=ligo/O=LIGO/OU=Services/CN=MbtaAlert/lscgw.virgo.infn.it',
+    ],
+}
+
+
+def update_certs(apps, schema_editor):
+    LocalUser = apps.get_model('ligoauth', 'LocalUser')
+    X509Cert = apps.get_model('ligoauth', 'X509Cert')
+
+    # Get user
+    user = LocalUser.objects.get(username=ACCOUNT['username'])
+
+    # Delete old certificates
+    for subject in ACCOUNT['remove_certs']:
+        X509Cert.objects.get(subject=subject).delete()
+
+    # Create new certificates and associate with user
+    for subject in ACCOUNT['new_certs']:
+        new_cert = X509Cert.objects.create(subject=subject)
+        user.x509cert_set.add(new_cert)
+
+
+def revert_certs(apps, schema_editor):
+    LocalUser = apps.get_model('ligoauth', 'LocalUser')
+    X509Cert = apps.get_model('ligoauth', 'X509Cert')
+
+    # Get user
+    user = LocalUser.objects.get(username=ACCOUNT['username'])
+
+    # Create old certificates and associate with user
+    for subject in ACCOUNT['remove_certs']:
+        cert = X509Cert.objects.create(subject=subject)
+        user.x509cert_set.add(cert)
+
+    # Delete new certs
+    for subject in ACCOUNT['new_certs']:
+        X509Cert.objects.get(subject=subject).delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ligoauth', '0008_add_cwb_certs'),
+    ]
+
+    operations = [
+        migrations.RunPython(update_certs, revert_certs),
+    ]