Return session token

OpenVPN Adapter/OpenVPNAdapter+Public.h

@@ -13,6 +13,7 @@
 @class OpenVPNProperties;
 @class OpenVPNCredentials;
 @class OpenVPNConnectionInfo;
+@class OpenVPNSessionToken;
 @class OpenVPNTransportStats;
 @class OpenVPNInterfaceStats;
 @class NEPacketTunnelNetworkSettings;
@@ -104,10 +105,15 @@ NS_SWIFT_NAME(handle(logMessage:));
 
 /**
  Return information about the most recent connection. Will be available
- after an event of type "CONNECTED, otherwise return nil.
+ after an event of type "OpenVPNEventConnected, otherwise return nil.
  */
 @property (nullable, readonly, nonatomic) OpenVPNConnectionInfo *connectionInfo;
 
+/**
+ Return current session token or nil if session token is unavailable
+ */
+@property (nullable, readonly, nonatomic) OpenVPNSessionToken *sessionToken;
+
 /**
  Return transport stats
  */

OpenVPN Adapter/OpenVPNAdapter.mm

@@ -21,6 +21,7 @@
 #import "OpenVPNCredentials+Internal.h"
 #import "OpenVPNProperties+Internal.h"
 #import "OpenVPNConnectionInfo+Internal.h"
+#import "OpenVPNSessionToken+Internal.h"
 #import "OpenVPNTransportStats+Internal.h"
 #import "OpenVPNInterfaceStats+Internal.h"
 #import "OpenVPNAdapter.h"
@@ -136,11 +137,17 @@ NSString * const OpenVPNAdapterErrorEventKey = @"me.ss-abramchuk.openvpn-adapter
 }
 
 - (OpenVPNConnectionInfo *)connectionInfo {
-    // TODO: Check correctness of using "defined" property
     ClientAPI::ConnectionInfo info = self.vpnClient->connection_info();
     return info.defined ? [[OpenVPNConnectionInfo alloc] initWithConnectionInfo:info] : nil;
 }
 
+- (OpenVPNSessionToken *)sessionToken {
+    ClientAPI::SessionToken token;
+    bool gotToken = self.vpnClient->session_token(token);
+    
+    return gotToken ? [[OpenVPNSessionToken alloc] initWithSessionToken:token] : nil;
+}
+
 - (OpenVPNTransportStats *)transportStats {
     ClientAPI::TransportStats stats = self.vpnClient->transport_stats();
     return [[OpenVPNTransportStats alloc] initWithTransportStats:stats];