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72 lines
2.0 KiB
Python
72 lines
2.0 KiB
Python
import secrets
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import uuid
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from django.db import migrations, models
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from django.db.backends.base.schema import BaseDatabaseSchemaEditor
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from django.db.migrations.state import StateApps
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def generate_api_key() -> str:
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"""
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This is a copy of zerver.lib.utils.generate_api_key. Importing code that's prone
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to change in a migration is something we generally avoid, to ensure predictable,
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consistent behavior of the migration across time.
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"""
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api_key = ""
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while len(api_key) < 32:
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api_key += secrets.token_urlsafe(3 * 9).replace("_", "").replace("-", "")
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return api_key[:32]
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def generate_realm_uuid_owner_secret() -> str:
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token = generate_api_key()
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return f"zuliprealm_{token}"
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def backfill_realm_uuid_and_secret(
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apps: StateApps, schema_editor: BaseDatabaseSchemaEditor
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) -> None:
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Realm = apps.get_model("zerver", "Realm")
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max_id = Realm.objects.aggregate(models.Max("id"))["id__max"]
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if max_id is None:
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# Nothing to do if there are no realms yet.
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return
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BATCH_SIZE = 100
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lower_bound = 0
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while lower_bound < max_id:
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realms_to_update = []
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for realm in Realm.objects.filter(
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id__gt=lower_bound,
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id__lte=lower_bound + BATCH_SIZE,
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# We're setting uuid and uuid_owner_secret together, so it's enough
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# to query for one of them being None.
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uuid=None,
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).only("id", "uuid", "uuid_owner_secret"):
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realm.uuid = uuid.uuid4()
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realm.uuid_owner_secret = generate_realm_uuid_owner_secret()
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realms_to_update.append(realm)
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lower_bound += BATCH_SIZE
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Realm.objects.bulk_update(realms_to_update, ["uuid", "uuid_owner_secret"])
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class Migration(migrations.Migration):
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atomic = False
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dependencies = [
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("zerver", "0479_realm_uuid_realm_uuid_owner_secret"),
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]
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operations = [
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migrations.RunPython(
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backfill_realm_uuid_and_secret,
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reverse_code=migrations.RunPython.noop,
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elidable=True,
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),
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]
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