headplane/agent/hpagent/websocket.go
Aarnav Tale 73ea35980d feat: switch agent fetching to the server side
this brings the benefit of fitting in the revalidator lifecycle we have
created via the useLiveData hook.
2025-03-24 16:15:38 -04:00

64 lines
1.3 KiB
Go

package hpagent
import (
"fmt"
"log"
"net/http"
"net/url"
"github.com/gorilla/websocket"
"github.com/tale/headplane/agent/tsnet"
)
type Socket struct {
*websocket.Conn
Debug bool
Agent *tsnet.TSAgent
}
// Creates a new websocket connection to the Headplane server.
func NewSocket(agent *tsnet.TSAgent, controlURL, authKey string, debug bool) (*Socket, error) {
wsURL, err := httpToWs(controlURL)
if err != nil {
return nil, err
}
headers := http.Header{}
headers.Add("X-Headplane-Tailnet-ID", agent.ID)
auth := fmt.Sprintf("Bearer %s", authKey)
headers.Add("Authorization", auth)
log.Printf("dialing websocket at %s", wsURL)
ws, _, err := websocket.DefaultDialer.Dial(wsURL, headers)
if err != nil {
return nil, err
}
return &Socket{ws, debug, agent}, nil
}
// We need to convert the control URL to a websocket URL
func httpToWs(controlURL string) (string, error) {
u, err := url.Parse(controlURL)
if err != nil {
return "", err
}
if u.Scheme == "http" {
u.Scheme = "ws"
} else if u.Scheme == "https" {
u.Scheme = "wss"
} else {
return "", fmt.Errorf("unsupported scheme: %s", u.Scheme)
}
// We also need to append /_dial to the path
if u.Path[len(u.Path)-1] != '/' {
u.Path += "/"
}
u.Path += "_dial"
return u.String(), nil
}