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