private CreateFirewallRuleDto CreateFirewallRule()
{
var createFirewallRule = new CreateFirewallRuleDto
{
Direction = (cboxDirection.SelectedItem as DirectionItem).Direction,
Ips = lboxIpAddresses.Items.OfType <IPModel>()
.Select(m => new IpDto
{
From = m.From,
IpOrSubnet = m.IpOrSubnet,
SubnetMask = m.SubnetMask,
To = m.To
})
.ToArray(),
Name = tboxRuleName.Text,
Ports = tboxPorts.Text ?? "",
Profile = (cboxProfile.SelectedItem as ProfileItem).Profile,
ProgramPath = tboxProgramPath.Text ?? "",
CreateRuleEnabled = cboxCreateEnabled.Checked
};
if (cboxProtocol.SelectedItem is ProtocolItem item)
{
createFirewallRule.Protocol = item.Protocol;
}
return(createFirewallRule);
}
public FirewallRuleDto CreateFirewallRule(CreateFirewallRuleDto rule)
{
var(parseOk, ips, proto, ports) = ParseRuleData(rule);
if (parseOk)
{
if (Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FWRule")) is INetFwRule3 fwRule)
{
fwRule.Name = rule.Name;
fwRule.Enabled = rule.CreateRuleEnabled;
fwRule.InterfaceTypes = "All";
fwRule.Action = NET_FW_ACTION_.NET_FW_ACTION_ALLOW;
fwRule.Direction = (NET_FW_RULE_DIRECTION_)rule.Direction;
fwRule.Profiles = (int)rule.Profile;
if (!string.IsNullOrEmpty(ips))
{
fwRule.RemoteAddresses = ips;
}
if (proto != null)
{
fwRule.Protocol = proto.Value;
fwRule.RemotePorts = ports;
}
if (!string.IsNullOrEmpty(rule.ProgramPath))
{
fwRule.ApplicationName = rule.ProgramPath;
}
firewallPolicy.Rules.Add(fwRule);
var firewallRuleDto = new FirewallRuleDto
{
FwRule = fwRule,
Profile = rule.Profile,
Direction = rule.Direction,
Name = rule.Name,
ProgramPath = rule.ProgramPath
};
UpdateRulesGroup(rule.Profile, rule.Direction, firewallRuleDto);
return(firewallRuleDto);
}
}
return(null);
}
private (bool, string, int?, string) ParseRuleData(CreateFirewallRuleDto rule)
{
(bool, string, int?, string)invalid = (false, null, null, null);
if (rule == null)
{
return(invalid);
}
if (string.IsNullOrEmpty(rule.Name))
{
return(invalid);
}
if (string.IsNullOrEmpty(rule.ProgramPath) &&
rule.Ips?.Length == 0 &&
rule.Protocol == null &&
string.IsNullOrEmpty(rule.Ports))
{
return(invalid);
}
var proto = rule.Protocol == null ? null : (int?)rule.Protocol;
var(portsOk, ports) = ParsePorts(rule.Ports);
var(ipsOk, ips) = ParseIps(rule.Ips);
if (proto is null)
{
portsOk = true; ports = null;
}
return(ipsOk && portsOk
? (true, ips, proto, ports)
: invalid);
}
