Function sign256

wxapp/hezj.js:44–47

(path, body, timestamp)

});

function sign256(path, body, timestamp) {
    const bodyStr = body ? JSON.stringify(body) : "";
    return crypto.createHash("sha256").update(path + bodyStr + HA_APP_ID + HA_APP_KEY + timestamp).digest("hex");
}

function maskToken(token = "") {
    if (!token) return "";