modpacksio-common/src/permission.js

Common code for Modpacks.io services

const hasPermission = (perms, perm) => {
    if (!perms|| !perm || perms.length === 0 )
        return false;
    const namespace = perm.split('.');
    skip:
        for (let i = 0; i < perms.length; i++) {
            if (perms[i] === perm || perms[i] === '*')
                return true;
            const parts = perms[i].split('.');
            for (let j = 0; j < namespace.length; j++) {
                if (j >= parts.length)
                    continue skip;
                if (parts[j] === '*')
                    return true;
                if (parts[j] !== namespace[j])
                    continue skip;
            }
            return true;
        }
    return false;
};

module.exports = Object.freeze({
    hasPermission
});