70 lines
1.4 KiB
Go
70 lines
1.4 KiB
Go
package main
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import (
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"flag"
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"log"
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"os"
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"path/filepath"
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"strings"
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"vppn/peer"
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"git.crumpington.com/lib/flock"
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)
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func main() {
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log.SetFlags(0)
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name := flag.String("name", "", "network name (required)")
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hub := flag.String("hub", "", "hub base URL (required)")
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flag.Parse()
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if *name == "" || *hub == "" {
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flag.Usage()
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os.Exit(1)
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}
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apiKey, err := loadAPIKey(*name)
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if err != nil {
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log.Fatalf("api key: %v", err)
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}
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// Directory existence is guaranteed by the apikey file read above.
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lockFile, err := flock.TryLock(vppnPath(*name, "lock"))
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if err != nil {
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log.Fatalf("lock: %v", err)
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}
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defer flock.Unlock(lockFile)
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state, err := peer.LoadOrInit(vppnPath(*name, "state.json"), *hub, apiKey)
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if err != nil {
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log.Fatalf("init: %v", err)
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}
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ifaceName := strings.TrimSuffix(state.LocalDomain, ".local")
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app, err := peer.New(state, *hub, apiKey, ifaceName, state.LocalDomain, vppnPath(*name, "network.json"))
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if err != nil {
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log.Fatalf("start: %v", err)
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}
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if err := app.Run(); err != nil {
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log.Fatalf("run: %v", err)
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}
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}
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func loadAPIKey(name string) (string, error) {
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data, err := os.ReadFile(vppnPath(name, "apikey"))
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if err != nil {
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return "", err
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}
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return strings.TrimSpace(string(data)), nil
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}
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func vppnPath(name, file string) string {
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home, err := os.UserHomeDir()
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if err != nil {
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return filepath.Join(".vppn", name, file)
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}
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return filepath.Join(home, ".vppn", name, file)
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}
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