Fill pgp keyid

pgp/management/commands/fill_keyids.py

+from django.core.management.base import BaseCommand
+from pgp.models import PublicKey
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        print("Setting key ids")
+        for key in PublicKey.objects.filter(keyid__isnull=True):
+            print(f"  Update {key.details().fingerprint}")
+            key.keyid = key.set_keyid()
+            key.save()
+        print("Done")

pgp/migrations/0002_publickey_keyid.py

+# Generated by Django 3.1.3 on 2021-02-21 10:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pgp', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='publickey',
+            name='keyid',
+            field=models.CharField(blank=True, max_length=40, null=True),
+        ),
+    ]

pgp/models.py

+import re
 from django.db import models
+import pgpy
 
 class PublicKey(models.Model):
     email = models.CharField(max_length=128)
     armor = models.TextField()
+    keyid = models.CharField(max_length=40, null=True, blank=True)
+
+    def __init__(self, *args, **kwds):
+        super().__init__(*args, **kwds)
+        self.decoded = None
+
+    def set_keyid(self):
+        self._decode()
+        fingerprint = self.decoded.fingerprint
+        self.keyid = re.sub("\s+", "", fingerprint).lower()
+
+    def save(self, *args, **kwds):
+        if not self.keyid:
+            self.set_keyid()
+ 
+        super().save(*args, **kwds)
+
+    def _decode(self):
+        if self.decoded:
+            return True
+
+        self.decoded, _ = pgpy.PGPKey.from_blob(self.armor)
+        return True
+
+    def details(self):
+        self._decode()
+        return self.decoded
+
+

requirements.txt

 django-guardian
+pgpy