mirror of
https://github.com/gravitl/netmaker.git
synced 2024-09-21 07:46:04 +08:00
Merge branch 'feature_v0.10.0_server_response' into feature_v0.10.0_serverPings
This commit is contained in:
commit
ad581b8764
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@ -67,6 +67,14 @@ func (s *NodeServiceServer) CreateNode(ctx context.Context, req *nodepb.Object)
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}
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}
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var serverNodes = logic.GetServerNodes(node.Network)
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for i, server := range serverNodes {
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node.NetworkSettings.DefaultServerAddrs += server.Address
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if i < len(serverNodes)-1 {
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node.NetworkSettings.DefaultServerAddrs += ","
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}
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}
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err = logic.CreateNode(&node)
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if err != nil {
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return nil, err
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@ -58,6 +58,21 @@ func GetSortedNetworkServerNodes(network string) ([]models.Node, error) {
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return nodes, nil
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}
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// GetServerNodes - gets the server nodes of a network
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func GetServerNodes(network string) []models.Node {
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var nodes, err = GetNetworkNodes(network)
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var serverNodes = make([]models.Node, 0)
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if err != nil {
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return serverNodes
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}
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for _, node := range nodes {
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if node.IsServer == "yes" {
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serverNodes = append(serverNodes, node)
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}
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}
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return serverNodes
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}
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// UncordonNode - approves a node to join a network
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func UncordonNode(nodeid string) (models.Node, error) {
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node, err := GetNodeByID(nodeid)
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@ -20,6 +20,7 @@ func GetPeerUpdate(node *models.Node) (models.PeerUpdate, error) {
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if err != nil {
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return models.PeerUpdate{}, err
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}
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var serverNodeAddresses = []string{}
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for _, peer := range networkNodes {
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if peer.ID == node.ID {
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//skip yourself
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@ -55,9 +56,13 @@ func GetPeerUpdate(node *models.Node) (models.PeerUpdate, error) {
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PersistentKeepaliveInterval: &keepalive,
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}
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peers = append(peers, peerData)
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if peer.IsServer == "yes" {
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serverNodeAddresses = append(serverNodeAddresses, peer.Address)
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}
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}
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peerUpdate.Network = node.Network
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peerUpdate.Peers = peers
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peerUpdate.ServerAddrs = serverNodeAddresses
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return peerUpdate, nil
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}
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@ -2,12 +2,15 @@ package models
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import "golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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// PeerUpdate - struct
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type PeerUpdate struct {
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Network string
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Peers []wgtypes.PeerConfig
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Network string `json:"network" bson:"network"`
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ServerAddrs []string `json:"serversaddrs" bson:"serversaddrs"`
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Peers []wgtypes.PeerConfig `json:"peers" bson:"peers"`
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}
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// KeyUpdate - key update struct
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type KeyUpdate struct {
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Network string
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Interface string
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Network string `json:"network" bson:"network"`
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Interface string `json:"interface" bson:"interface"`
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}
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@ -38,6 +38,7 @@ type Network struct {
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DefaultUDPHolePunch string `json:"defaultudpholepunch" bson:"defaultudpholepunch" validate:"checkyesorno"`
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DefaultExtClientDNS string `json:"defaultextclientdns" bson:"defaultextclientdns"`
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DefaultMTU int32 `json:"defaultmtu" bson:"defaultmtu"`
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DefaultServerAddrs string `json:"defaultserveraddrs" bson:"defaultserveraddrs" yaml:"defaultserveraddrs"`
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}
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// SaveData - sensitive fields of a network that should be kept the same
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@ -119,6 +119,7 @@ func ModConfig(node *models.Node) error {
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modconfig.Node = (*node)
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modconfig.NetworkSettings = node.NetworkSettings
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log.Printf("%v \n", modconfig)
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err = Write(&modconfig, network)
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return err
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}
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@ -3,10 +3,13 @@ package functions
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import (
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"context"
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"encoding/json"
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"fmt"
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"log"
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"os"
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"os/signal"
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"runtime"
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"strings"
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"sync"
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"syscall"
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"time"
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@ -21,6 +24,21 @@ import (
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// ServerKeepalive - stores time of last server keepalive message
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var KeepaliveReceived time.Time
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var messageCache = make(map[string]string, 20)
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const lastNodeUpdate = "lnu"
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const lastPeerUpdate = "lpu"
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func insert(network, which, cache string) {
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var mu sync.Mutex
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mu.Lock()
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defer mu.Unlock()
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messageCache[fmt.Sprintf("%s%s", network, which)] = cache
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}
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func read(network, which string) string {
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return messageCache[fmt.Sprintf("%s%s", network, which)]
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}
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// Daemon runs netclient daemon from command line
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func Daemon() error {
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@ -44,8 +62,13 @@ func Daemon() error {
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// SetupMQTT creates a connection to broker and return client
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func SetupMQTT(cfg *config.ClientConfig) mqtt.Client {
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opts := mqtt.NewClientOptions()
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ncutils.Log("setting broker to " + cfg.Server.CoreDNSAddr + ":1883")
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opts.AddBroker(cfg.Server.CoreDNSAddr + ":1883")
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serverAddrs := strings.Split(cfg.Node.NetworkSettings.DefaultServerAddrs, ",")
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for i, addr := range serverAddrs {
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if addr != "" {
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ncutils.Log(fmt.Sprintf("adding server (%d) to listen on network %s \n", (i + 1), cfg.Node.Network))
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opts.AddBroker(addr + ":1883")
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}
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}
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opts.SetDefaultPublishHandler(All)
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client := mqtt.NewClient(opts)
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if token := client.Connect(); token.Wait() && token.Error() != nil {
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@ -112,6 +135,12 @@ var NodeUpdate mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message)
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ncutils.Log("error unmarshalling node update data" + err.Error())
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return
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}
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// see if cache hit, if so skip
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var currentMessage = read(newNode.Network, lastNodeUpdate)
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if currentMessage == string(msg.Payload()) {
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return
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}
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insert(newNode.Network, lastNodeUpdate, string(msg.Payload()))
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cfg.Network = newNode.Network
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cfg.ReadConfig()
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//check if interface name has changed if so delete.
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@ -187,10 +216,23 @@ var UpdatePeers mqtt.MessageHandler = func(client mqtt.Client, msg mqtt.Message)
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ncutils.Log("error unmarshalling peer data")
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return
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}
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// see if cache hit, if so skip
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var currentMessage = read(peerUpdate.Network, lastPeerUpdate)
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if currentMessage == string(msg.Payload()) {
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return
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}
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insert(peerUpdate.Network, lastPeerUpdate, string(msg.Payload()))
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ncutils.Log("update peer handler")
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var cfg config.ClientConfig
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cfg.Network = peerUpdate.Network
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cfg.ReadConfig()
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var shouldReSub = shouldResub(strings.Split(cfg.Node.NetworkSettings.DefaultServerAddrs, ","), peerUpdate.ServerAddrs)
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if shouldReSub {
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client.Disconnect(250) // kill client
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// un sub, re sub.. how?
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client.Unsubscribe("update/"+cfg.Node.ID, "update/peers/"+cfg.Node.ID)
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cfg.Node.NetworkSettings.DefaultServerAddrs = strings.Join(peerUpdate.ServerAddrs, ",")
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}
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file := ncutils.GetNetclientPathSpecific() + cfg.Node.Interface + ".conf"
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err = wireguard.UpdateWgPeers(file, peerUpdate.Peers)
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if err != nil {
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@ -217,6 +259,26 @@ func ServerKeepAlive(client mqtt.Client, msg mqtt.Message) {
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///do other stuff
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}
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// Resubscribe --- handles resubscribing if needed
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func Resubscribe(client mqtt.Client, cfg *config.ClientConfig) {
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if err := config.ModConfig(&cfg.Node); err == nil {
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client.Disconnect(250)
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client = SetupMQTT(cfg)
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if token := client.Subscribe("update/"+cfg.Node.ID, 0, NodeUpdate); token.Wait() && token.Error() != nil {
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log.Fatal(token.Error())
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}
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if cfg.DebugOn {
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ncutils.Log("subscribed to node updates for node " + cfg.Node.Name + " update/" + cfg.Node.ID)
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}
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if token := client.Subscribe("update/peers/"+cfg.Node.ID, 0, UpdatePeers); token.Wait() && token.Error() != nil {
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log.Fatal(token.Error())
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}
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ncutils.Log("finished re subbing")
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} else {
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ncutils.Log("could not mod config when re-subbing")
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}
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}
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// UpdateKeys -- updates private key and returns new publickey
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func UpdateKeys(cfg *config.ClientConfig, client mqtt.Client) error {
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ncutils.Log("received message to update keys")
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@ -312,3 +374,15 @@ func Hello(cfg *config.ClientConfig, network string) {
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}
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client.Disconnect(250)
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}
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func shouldResub(currentServers, newServers []string) bool {
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if len(currentServers) != len(newServers) {
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return false
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}
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for _, srv := range currentServers {
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if !ncutils.StringSliceContains(newServers, srv) {
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return true
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}
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}
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return false
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}
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@ -161,6 +161,7 @@ func JoinNetwork(cfg config.ClientConfig, privateKey string) error {
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if err = json.Unmarshal([]byte(nodeData), &node); err != nil {
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return err
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}
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log.Printf("%v \n", nodeData)
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}
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// get free port based on returned default listen port
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@ -183,6 +184,7 @@ func JoinNetwork(cfg config.ClientConfig, privateKey string) error {
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}
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if node.IsServer != "yes" { // == handle client side ==
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cfg.Node = node
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err = config.ModConfig(&node)
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if err != nil {
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return err
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@ -532,3 +532,13 @@ func CheckWG() {
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log.Println("running userspace WireGuard with " + uspace)
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}
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}
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// StringSliceContains - sees if a string slice contains a string element
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func StringSliceContains(slice []string, item string) bool {
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for _, s := range slice {
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if s == item {
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return true
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}
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}
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return false
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}
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