fix(fastapi): utilize auto_{orphan,deletion}_age

Didn't get this in when the initial request port went down;
here it is.

Auto-accept orphan requests when the package has been out of
date for longer than auto_orphan_age.

Auto-accept deletion requests by the package's maintainer
if the package has been uploaded within auto_deletion_age
seconds ago.

Signed-off-by: Kevin Morris <kevr@0cost.org>

aurweb/packages/validate.py

@@ -0,0 +1,34 @@
+from typing import Any, Dict
+
+from aurweb import db, models
+from aurweb.exceptions import ValidationError
+
+
+def request(pkgbase: models.PackageBase,
+            type: str, comments: str, merge_into: str,
+            context: Dict[str, Any]) -> None:
+    if not comments:
+        raise ValidationError(["The comment field must not be empty."])
+
+    if type == "merge":
+        # Perform merge-related checks.
+        if not merge_into:
+            # TODO: This error needs to be translated.
+            raise ValidationError(
+                ['The "Merge into" field must not be empty.'])
+
+        target = db.query(models.PackageBase).filter(
+            models.PackageBase.Name == merge_into
+        ).first()
+        if not target:
+            # TODO: This error needs to be translated.
+            raise ValidationError([
+                "The package base you want to merge into does not exist."
+            ])
+
+        db.refresh(target)
+        if target.ID == pkgbase.ID:
+            # TODO: This error needs to be translated.
+            raise ValidationError([
+                "You cannot merge a package base into itself."
+            ])