From d24d8328f95ef3f687302e47992890a6d91729a3 Mon Sep 17 00:00:00 2001
From: Zoltan Papp <zoltan.pmail@gmail.com>
Date: Fri, 13 Jun 2025 11:04:17 +0200
Subject: [PATCH] [client] Propagation networks for Android client (#3966)

Add networks propagation
---
 client/android/client.go        | 57 ++++++++++++++++++++++++++++++---
 client/android/networks.go      | 27 ++++++++++++++++
 client/android/peer_notifier.go | 15 +++------
 3 files changed, 84 insertions(+), 15 deletions(-)
 create mode 100644 client/android/networks.go

diff --git a/client/android/client.go b/client/android/client.go
index 229bcd974..3b8a5bd0f 100644
--- a/client/android/client.go
+++ b/client/android/client.go
@@ -59,6 +59,8 @@ type Client struct {
 	deviceName            string
 	uiVersion             string
 	networkChangeListener listener.NetworkChangeListener
+
+	connectClient *internal.ConnectClient
 }
 
 // NewClient instantiate a new Client
@@ -106,8 +108,8 @@ func (c *Client) Run(urlOpener URLOpener, dns *DNSList, dnsReadyListener DnsRead
 
 	// todo do not throw error in case of cancelled context
 	ctx = internal.CtxInitState(ctx)
-	connectClient := internal.NewConnectClient(ctx, cfg, c.recorder)
-	return connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
+	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder)
+	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
 }
 
 // RunWithoutLogin we apply this type of run function when the backed has been started without UI (i.e. after reboot).
@@ -132,8 +134,8 @@ func (c *Client) RunWithoutLogin(dns *DNSList, dnsReadyListener DnsReadyListener
 
 	// todo do not throw error in case of cancelled context
 	ctx = internal.CtxInitState(ctx)
-	connectClient := internal.NewConnectClient(ctx, cfg, c.recorder)
-	return connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
+	c.connectClient = internal.NewConnectClient(ctx, cfg, c.recorder)
+	return c.connectClient.RunOnAndroid(c.tunAdapter, c.iFaceDiscover, c.networkChangeListener, dns.items, dnsReadyListener)
 }
 
 // Stop the internal client and free the resources
@@ -174,6 +176,53 @@ func (c *Client) PeersList() *PeerInfoArray {
 	return &PeerInfoArray{items: peerInfos}
 }
 
+func (c *Client) Networks() *NetworkArray {
+	if c.connectClient == nil {
+		log.Error("not connected")
+		return nil
+	}
+
+	engine := c.connectClient.Engine()
+	if engine == nil {
+		log.Error("could not get engine")
+		return nil
+	}
+
+	routeManager := engine.GetRouteManager()
+	if routeManager == nil {
+		log.Error("could not get route manager")
+		return nil
+	}
+
+	networkArray := &NetworkArray{
+		items: make([]Network, 0),
+	}
+
+	for id, routes := range routeManager.GetClientRoutesWithNetID() {
+		if len(routes) == 0 {
+			continue
+		}
+
+		if routes[0].IsDynamic() {
+			continue
+		}
+
+		peer, err := c.recorder.GetPeer(routes[0].Peer)
+		if err != nil {
+			log.Errorf("could not get peer info for %s: %v", routes[0].Peer, err)
+			continue
+		}
+		network := Network{
+			Name:    string(id),
+			Network: routes[0].Network.String(),
+			Peer:    peer.FQDN,
+			Status:  peer.ConnStatus.String(),
+		}
+		networkArray.Add(network)
+	}
+	return networkArray
+}
+
 // OnUpdatedHostDNS update the DNS servers addresses for root zones
 func (c *Client) OnUpdatedHostDNS(list *DNSList) error {
 	dnsServer, err := dns.GetServerDns()
diff --git a/client/android/networks.go b/client/android/networks.go
new file mode 100644
index 000000000..aa130420b
--- /dev/null
+++ b/client/android/networks.go
@@ -0,0 +1,27 @@
+//go:build android
+
+package android
+
+type Network struct {
+	Name    string
+	Network string
+	Peer    string
+	Status  string
+}
+
+type NetworkArray struct {
+	items []Network
+}
+
+func (array *NetworkArray) Add(s Network) *NetworkArray {
+	array.items = append(array.items, s)
+	return array
+}
+
+func (array *NetworkArray) Get(i int) *Network {
+	return &array.items[i]
+}
+
+func (array *NetworkArray) Size() int {
+	return len(array.items)
+}
diff --git a/client/android/peer_notifier.go b/client/android/peer_notifier.go
index 9f6fcddd6..1f5564c72 100644
--- a/client/android/peer_notifier.go
+++ b/client/android/peer_notifier.go
@@ -7,30 +7,23 @@ type PeerInfo struct {
 	ConnStatus string // Todo replace to enum
 }
 
-// PeerInfoCollection made for Java layer to get non default types as collection
-type PeerInfoCollection interface {
-	Add(s string) PeerInfoCollection
-	Get(i int) string
-	Size() int
-}
-
-// PeerInfoArray is the implementation of the PeerInfoCollection
+// PeerInfoArray is a wrapper of []PeerInfo
 type PeerInfoArray struct {
 	items []PeerInfo
 }
 
 // Add new PeerInfo to the collection
-func (array PeerInfoArray) Add(s PeerInfo) PeerInfoArray {
+func (array *PeerInfoArray) Add(s PeerInfo) *PeerInfoArray {
 	array.items = append(array.items, s)
 	return array
 }
 
 // Get return an element of the collection
-func (array PeerInfoArray) Get(i int) *PeerInfo {
+func (array *PeerInfoArray) Get(i int) *PeerInfo {
 	return &array.items[i]
 }
 
 // Size return with the size of the collection
-func (array PeerInfoArray) Size() int {
+func (array *PeerInfoArray) Size() int {
 	return len(array.items)
 }