add admin user list

app/auth.py

@@ -243,3 +243,41 @@ def set_user_password(db_path: str, userid: int, newpass: str) -> bool:
         ''', (salt, newpass_hash, userid))
 
         return True
+
+def is_admin(db_path: str, userid: int) -> bool:
+    with sqlite3.connect(db_path) as connection:
+        cursor = connection.cursor()
+
+        cursor.execute('''
+            SELECT COUNT(*) FROM Users
+            WHERE userid = ?
+                AND IS_ADMIN = 1
+        ''', (userid, ))
+
+        return cursor.fetchone()[0] == 1
+
+def get_users(db_path: str) -> dict:
+    with sqlite3.connect(db_path) as connection:
+        cursor = connection.cursor()
+
+        cursor.execute('''
+            SELECT userid, username, is_admin FROM Users
+        ''')
+
+        users = cursor.fetchall()
+
+        users = list(map(lambda x: {"userid": x[0], "username": x[1], "domains": [], "is_admin": bool(x[2])}, users))
+
+        for user in users:
+            cursor.execute('''
+                SELECT domain FROM Domains
+                WHERE userid = ?
+            ''', (user["userid"], ))
+
+            domains = cursor.fetchall()
+
+            domains = list(map(lambda x: x[0], domains))
+
+            user['domains'] = domains
+
+        return users