Library for connecting via OpenVPN protocol for iOS and macOS platforms. The library supports Xor patch.
OpenVPNXor is a library that allows to configure and establish VPN connection using OpenVPN protocol easily. It is based on the original openvpn3 library so it has every feature the library has.
The library is designed to use in conjunction with NetworkExtension framework and doesn't use any private Apple API. Compatible with iOS and macOS and also Swift friendly.
OpenVPNXor is available with CocoaPods.
CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate OpenVPNXor into your Xcode project using CocoaPods, specify it in your Podfile:
platform :ios, '11.0'
use_frameworks!
def sharedPods
pod 'OpenVPNXor'
end
target 'Example VPN' do
sharedPods
end
target 'PacketTunnelOpenVPN' do
sharedPods
endFirst, you need to add a Packet Tunnel Provider extension and create App Group identifier.
Next, you need to call the setup method to initialize the library. You need to pass the bundle id of the Packet Tunnel extension and the App Group identifier to this method. App Group identifier to be same for App and packet tunnel provider.
import OpenVPNXor
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
OpenVPNManager.setup(openvpnPacketTunnelIdentifier: "com.example.bundle.PacketTunnelOpenVPN", appGroupIdentifier: "group.com.example.bundle")
return true
}PacketTunnelProvider class configuration.
import NetworkExtension
import OpenVPNXor
import os.log
extension OSLog {
private static var subsystem = Bundle.main.bundleIdentifier!
/// Logs the view cycles like viewDidLoad.
static let viewCycle = OSLog(subsystem: subsystem, category: "PacketTunnel")
}
class PacketTunnelProvider: OpenVPNPacketTunnelProvider {
override func startTunnel(options: [String : NSObject]?, completionHandler: @escaping (Error?) -> Void) {
/// Add code here to start the process of connecting the tunnel.
os_log("startTunnel!", log: OSLog.viewCycle, type: .info)
super.startTunnel(options: options, completionHandler: completionHandler)
}
override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
/// Add code here to start the process of stopping the tunnel.
super.stopTunnel(with: reason, completionHandler: completionHandler)
}
override func handleAppMessage(_ messageData: Data, completionHandler: ((Data?) -> Void)?) {
super.handleAppMessage(messageData, completionHandler: completionHandler)
}
}Saving configuration of the profile in the Network Extension preferences of the .ovpn file.
let configurationFileContent = // .ovpn config file
let login = "login"
let pass = "password"
OpenVPNManager.shared.configureVPN(openVPNConfiguration: configurationFileContent, login: login, pass:pass) { success in
if success {
/// Profile saved successfully.
} else {
/// Error saving profile. See the description of the error in the delegate method - `VpnManagerConnectionFailed`
}
}Start VPN connection by calling the following code.
OpenVPNManager.shared.connectVPN { errorDescription in
/// If an error occurred while connecting, the `errorDescription` variable will contain a description of the error.
}Disconnect VPN
OpenVPNManager.shared.disconnectVPN()Using the onVPNStatusChange block, you can track changes in connection status.
OpenVPNManager.shared.onVPNStatusChange = { (status) in
switch status {
case .invalid:
/** @const VPNStatusDisconnected The VPN is disconnected. */
break
case .disconnected:
/** @const VPNStatusDisconnected The VPN is disconnected. */
break
case .connecting:
/** @const VPNStatusConnecting The VPN is connecting. */
break
case .connected:
/** @const VPNStatusConnected The VPN is connected. */
break
case .reasserting:
/** @const VPNStatusReasserting The VPN is reconnecting following loss of underlying network connectivity. */
break
case .disconnecting:
/** @const VPNStatusDisconnecting The VPN is disconnecting. */
break
}
}Also at any time you can take the status with a variable OpenVPNManager.shared.vpnStatus
If an error occurred while saving the profile or connecting, this method will return a description of the error.
func VpnManagerConnectionFailed(error : VPNCollectionErrorType , localizedDescription : String)The method will be called upon successful connection.
func VpnManagerConnected()The method to be called after disconnecting from the VPN server.
func VpnManagerDisconnected()The method will be called after successfully saving the configuration of the profile in the Network Extension preferences.
func VpnManagerProfileSaved()Network Traffic Statistics
func VpnManagerPacketTransmitted(with bitrate: Bitrate) {
print("NetworkTrafficStatistics - ", NetworkTrafficStatistics.formBitrateString(with: bitrate))
}VPN session logs.
func VpnManagerLogs(log : String?)Contributions for improvements are welcomed. Feel free to submit a pull request to help grow the library. If you have any questions, feature suggestions, or bug reports, please send them to Issues.
MIT License
Copyright (c) 2023 Futurra Group
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SOFTWARE.