add token-based auth

app/auth.py

@@ -0,0 +1,34 @@
+import sqlite3
+
+#def __init__(self, path: str) -> None:
+#    self.db_connection = sqlite3.connect(path)
+#    cursor = self.db_connection.cursor()
+#    cursor.execute('''
+#        CREATE TABLE IF NOT EXISTS Tokens (
+#            TOKEN TEXT PRIMARY KEY NOT NULL,
+#            USER TEXT NOT NULL,
+#            NAME TEXT NOT NULL
+#        )
+#    ''')
+#
+#    cursor.execute('''
+#        CREATE TABLE IF NOT EXISTS Domains (
+#            DOMAIN TEXT PRIMARY KEY NOT NULL,
+#            USER TEXT NOT NULL
+#        )
+#    ''')
+#
+#    self.db_connection.commit()
+#    cursor.close()
+
+def check_token_domain(db_path: str, token: str, domain: str) -> bool:
+    with sqlite3.connect(db_path) as connection:
+        cursor = connection.cursor()
+        cursor.execute('''
+            SELECT COUNT(*) FROM Tokens
+            JOIN Domains ON Tokens.user = Domains.user
+            WHERE token = ?
+                AND domain = ?
+        ''', (token,domain))
+
+    return cursor.fetchone()[0] == 1