Files
netmaker/mq/util.go
Abhishek K b78cc0a8a1 NET-725: Failovers (#2685)
* api to  to get host relayed from client

* add auto relay to api host

* add peer nat type

* set pro field on signal

* rm net check on relay me handler

* return success response

* re-establish failover logic

* set failOver ctx

* failOver with peer pub key

* failovered peer updates

* failover handlers, reset failovered peer on deletion

* rm unused funcs

* initialize failover handler on EE

* ignore failover node on signal

* failover changes

* set host id on signal

* extend signal model to include node ids

* add backwards compatibility

* add failover as node api

* set json response on failover handers

* add failover field to api node

* fix signal data check

* initialize failover peer map

* reset failovered status when relayed or deleted

* add failover info to api node

* reset network failover

* only proceed furtuer if failover exists in the network

* set failOver node defaults

* cannot set failover node as relayed

* debug log

* debug log

* debug changes

* debug changes

* debug changes

* revert debug changes

* don't add peers to idmap when removed

* reset failed Over

* fix static checks

* rm debug log

* add check for linux host
2023-11-29 20:10:07 +04:00

107 lines
2.6 KiB
Go

package mq
import (
"errors"
"fmt"
"strings"
"time"
"github.com/gravitl/netmaker/logic"
"github.com/gravitl/netmaker/models"
"github.com/gravitl/netmaker/netclient/ncutils"
)
func decryptMsgWithHost(host *models.Host, msg []byte) ([]byte, error) {
if host.OS == models.OS_Types.IoT { // just pass along IoT messages
return msg, nil
}
trafficKey, trafficErr := logic.RetrievePrivateTrafficKey() // get server private key
if trafficErr != nil {
return nil, trafficErr
}
serverPrivTKey, err := ncutils.ConvertBytesToKey(trafficKey)
if err != nil {
return nil, err
}
nodePubTKey, err := ncutils.ConvertBytesToKey(host.TrafficKeyPublic)
if err != nil {
return nil, err
}
return ncutils.DeChunk(msg, nodePubTKey, serverPrivTKey)
}
func DecryptMsg(node *models.Node, msg []byte) ([]byte, error) {
if len(msg) <= 24 { // make sure message is of appropriate length
return nil, fmt.Errorf("received invalid message from broker %v", msg)
}
host, err := logic.GetHost(node.HostID.String())
if err != nil {
return nil, err
}
return decryptMsgWithHost(host, msg)
}
func encryptMsg(host *models.Host, msg []byte) ([]byte, error) {
if host.OS == models.OS_Types.IoT {
return msg, nil
}
// fetch server public key to be certain hasn't changed in transit
trafficKey, trafficErr := logic.RetrievePrivateTrafficKey()
if trafficErr != nil {
return nil, trafficErr
}
serverPrivKey, err := ncutils.ConvertBytesToKey(trafficKey)
if err != nil {
return nil, err
}
nodePubKey, err := ncutils.ConvertBytesToKey(host.TrafficKeyPublic)
if err != nil {
return nil, err
}
if strings.Contains(host.Version, "0.10.0") {
return ncutils.BoxEncrypt(msg, nodePubKey, serverPrivKey)
}
return ncutils.Chunk(msg, nodePubKey, serverPrivKey)
}
func publish(host *models.Host, dest string, msg []byte) error {
encrypted, encryptErr := encryptMsg(host, msg)
if encryptErr != nil {
return encryptErr
}
if mqclient == nil {
return errors.New("cannot publish ... mqclient not connected")
}
if token := mqclient.Publish(dest, 0, true, encrypted); !token.WaitTimeout(MQ_TIMEOUT*time.Second) || token.Error() != nil {
var err error
if token.Error() == nil {
err = errors.New("connection timeout")
} else {
err = token.Error()
}
return err
}
return nil
}
// decodes a message queue topic and returns the embedded node.ID
func GetID(topic string) (string, error) {
parts := strings.Split(topic, "/")
count := len(parts)
if count == 1 {
return "", fmt.Errorf("invalid topic")
}
//the last part of the topic will be the node.ID
return parts[count-1], nil
}