evcc-io/server/uds.go
2022-10-15 11:27:07 +02:00

45 lines
905 B
Go

//go:build !windows
package server
import (
"net"
"net/http"
"os"
"github.com/evcc-io/evcc/cmd/shutdown"
"github.com/evcc-io/evcc/core/site"
)
// SocketPath is the unix domain socket path
const SocketPath = "/tmp/evcc"
// removeIfExists deletes file if it exists or fails
func removeIfExists(file string) {
if _, err := os.Stat(file); err == nil {
if err := os.RemoveAll(file); err != nil {
log.FATAL.Fatal(err)
}
}
}
// HealthListener attaches listener to unix domain socket and runs listener
func HealthListener(site site.API) {
removeIfExists(SocketPath)
l, err := net.Listen("unix", SocketPath)
if err != nil {
log.FATAL.Fatal(err)
}
mux := http.NewServeMux()
httpd := http.Server{Handler: mux}
mux.HandleFunc("/health", healthHandler(site))
go func() { _ = httpd.Serve(l) }()
shutdown.Register(func() {
_ = l.Close()
removeIfExists(SocketPath) // cleanup
})
}