providers/saml: change assertion_valid_not_before default to -5 minutes

passbook/providers/saml/migrations/0006_auto_20200217_2031.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.0.3 on 2020-02-17 20:31
+
+from django.db import migrations, models
+import passbook.providers.saml.utils.time
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("passbook_providers_saml", "0005_remove_samlpropertymapping_values"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="samlprovider",
+            name="assertion_valid_not_before",
+            field=models.TextField(
+                default="minutes=-5",
+                help_text="Assertion valid not before current time + this value (Format: hours=-1;minutes=-2;seconds=-3).",
+                validators=[
+                    passbook.providers.saml.utils.time.timedelta_string_validator
+                ],
+            ),
+        ),
+    ]

passbook/providers/saml/models.py

@@ -23,12 +23,12 @@ class SAMLProvider(Provider):
     issuer = models.TextField()
 
     assertion_valid_not_before = models.TextField(
-        default="minutes=5",
+        default="minutes=-5",
         validators=[timedelta_string_validator],
         help_text=_(
             (
-                "Assertion valid not before current time - this value "
+                "Assertion valid not before current time + this value "
-                "(Format: hours=1;minutes=2;seconds=3)."
+                "(Format: hours=-1;minutes=-2;seconds=-3)."
             )
         ),
     )