rename aliasctl script and add it to release

aliasctl

@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+import argparse
+import sqlite3
+import time
+import sys
+
+DEFAULT_DB = "/var/lib/kc-policy/aliases.db"
+
+SCHEMA = """
+CREATE TABLE IF NOT EXISTS aliases (
+  alias_email TEXT PRIMARY KEY,
+  username    TEXT NOT NULL,
+  enabled     INTEGER NOT NULL DEFAULT 1,
+  updated_at  INTEGER NOT NULL DEFAULT (strftime('%s','now'))
+);
+CREATE INDEX IF NOT EXISTS idx_aliases_username ON aliases(username);
+"""
+
+def connect(db_path: str):
+    con = sqlite3.connect(db_path)
+    con.execute("PRAGMA journal_mode=WAL;")
+    con.execute("PRAGMA synchronous=NORMAL;")
+    con.executescript(SCHEMA)
+    return con
+
+def norm_email(s: str) -> str:
+    return s.strip().lower()
+
+def cmd_add(con, alias_email, username):
+    alias_email = norm_email(alias_email)
+    username = username.strip()
+    now = int(time.time())
+    con.execute(
+        "INSERT INTO aliases(alias_email, username, enabled, updated_at) VALUES(?,?,1,?) "
+        "ON CONFLICT(alias_email) DO UPDATE SET username=excluded.username, enabled=1, updated_at=excluded.updated_at",
+        (alias_email, username, now),
+    )
+    con.commit()
+
+def cmd_del(con, alias_email):
+    alias_email = norm_email(alias_email)
+    con.execute("DELETE FROM aliases WHERE alias_email=?", (alias_email,))
+    con.commit()
+
+def cmd_disable(con, alias_email):
+    alias_email = norm_email(alias_email)
+    con.execute("UPDATE aliases SET enabled=0, updated_at=? WHERE alias_email=?", (int(time.time()), alias_email))
+    con.commit()
+
+def cmd_list(con, username=None):
+    if username:
+        rows = con.execute(
+            "SELECT alias_email, username, enabled, updated_at FROM aliases WHERE username=? ORDER BY alias_email",
+            (username,),
+        ).fetchall()
+    else:
+        rows = con.execute(
+            "SELECT alias_email, username, enabled, updated_at FROM aliases ORDER BY username, alias_email"
+        ).fetchall()
+    for a,u,en,ts in rows:
+        print(f"{a}\t{u}\t{'enabled' if en else 'disabled'}\t{ts}")
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--db", default=DEFAULT_DB)
+    sub = ap.add_subparsers(dest="cmd", required=True)
+
+    p_add = sub.add_parser("add")
+    p_add.add_argument("alias_email")
+    p_add.add_argument("username")
+
+    p_del = sub.add_parser("del")
+    p_del.add_argument("alias_email")
+
+    p_dis = sub.add_parser("disable")
+    p_dis.add_argument("alias_email")
+
+    p_ls = sub.add_parser("list")
+    p_ls.add_argument("--user", default=None)
+
+    args = ap.parse_args()
+    con = connect(args.db)
+    try:
+        if args.cmd == "add":
+            cmd_add(con, args.alias_email, args.username)
+        elif args.cmd == "del":
+            cmd_del(con, args.alias_email)
+        elif args.cmd == "disable":
+            cmd_disable(con, args.alias_email)
+        elif args.cmd == "list":
+            cmd_list(con, args.user)
+    finally:
+        con.close()
+
+if __name__ == "__main__":
+    sys.exit(main())