/// <summary>
/// Verifica se a permissão informada é um subconjunto da instancia.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public bool IsSubsetOf(IPermission target)
{
if (target == null)
{
return(this.IsEmpty());
}
SystemPermission permission = target as SystemPermission;
if (permission == null)
{
throw new ArgumentException(string.Format(Properties.Resources.Argument_WrongType, base.GetType().FullName));
}
if (permission.IsUnrestricted())
{
return(true);
}
if (!this.IsUnrestricted() && (((((this._read == null) || this._read.IsSubsetOf(permission._read)) && ((this._write == null) || this._write.IsSubsetOf(permission._write))) && (((this._execute == null) || this._execute.IsSubsetOf(permission._execute)) && ((this._pathDiscovery == null) || this._pathDiscovery.IsSubsetOf(permission._pathDiscovery)))) && ((this._viewAcl == null) || this._viewAcl.IsSubsetOf(permission._viewAcl))))
{
if (this._changeAcl != null)
{
return(this._changeAcl.IsSubsetOf(permission._changeAcl));
}
return(true);
}
return(false);
}
/// <summary>
/// Recupera a intercessão da instancia com a permissão informada.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
public IPermission Intersect(IPermission target)
{
if (target == null)
{
return(null);
}
SystemPermission permission = target as SystemPermission;
if (permission == null)
{
throw new ArgumentException(string.Format(Properties.Resources.Argument_WrongType, base.GetType().FullName));
}
if (this.IsUnrestricted())
{
return(target.Copy());
}
if (permission.IsUnrestricted())
{
return(this.Copy());
}
SystemAccess access = (this._read == null) ? null : this._read.Intersect(permission._read);
SystemAccess access2 = (this._write == null) ? null : this._write.Intersect(permission._write);
SystemAccess access3 = (this._execute == null) ? null : this._execute.Intersect(permission._execute);
SystemAccess access4 = (this._pathDiscovery == null) ? null : this._pathDiscovery.Intersect(permission._pathDiscovery);
SystemAccess access5 = (this._viewAcl == null) ? null : this._viewAcl.Intersect(permission._viewAcl);
SystemAccess access6 = (this._changeAcl == null) ? null : this._changeAcl.Intersect(permission._changeAcl);
if (((((access == null) || access.IsEmpty()) && ((access2 == null) || access2.IsEmpty())) && (((access3 == null) || access3.IsEmpty()) && ((access4 == null) || access4.IsEmpty()))) && (((access5 == null) || access5.IsEmpty()) && ((access6 == null) || access6.IsEmpty())))
{
return(null);
}
SystemPermission permission2 = new SystemPermission(PermissionState.None);
permission2._unrestricted = false;
permission2._read = access;
permission2._write = access2;
permission2._execute = access3;
permission2._pathDiscovery = access4;
permission2._viewAcl = access5;
permission2._changeAcl = access6;
return(permission2);
}