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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package acme | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "runtime" | ||
|
|
||
| "github.com/wzshiming/hostmatcher" | ||
| "golang.org/x/crypto/acme/autocert" | ||
| ) | ||
|
|
||
| func hostWhitelist(hosts ...string) autocert.HostPolicy { | ||
| matcher := hostmatcher.NewMatcher(hosts) | ||
| return func(_ context.Context, host string) error { | ||
| if !matcher.Match(host) { | ||
| return fmt.Errorf("acme/autocert: host %q not configured in HostWhitelist", host) | ||
| } | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| func NewAcme(domains []string, dir string) *tls.Config { | ||
| m := &autocert.Manager{ | ||
| Prompt: autocert.AcceptTOS, | ||
| } | ||
| if len(domains) > 0 { | ||
| m.HostPolicy = hostWhitelist(domains...) | ||
| } | ||
| if dir == "" { | ||
| dir = cacheDir() | ||
| } | ||
| m.Cache = autocert.DirCache(dir) | ||
|
|
||
| tlsConfig := m.TLSConfig() | ||
| return tlsConfig | ||
| } | ||
|
|
||
| func homeDir() string { | ||
| if runtime.GOOS == "windows" { | ||
| return os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH") | ||
| } | ||
| if h := os.Getenv("HOME"); h != "" { | ||
| return h | ||
| } | ||
| return "/" | ||
| } | ||
|
|
||
| func cacheDir() string { | ||
| const base = "autocert" | ||
| switch runtime.GOOS { | ||
| case "darwin": | ||
| return filepath.Join(homeDir(), "Library", "Caches", base) | ||
| case "windows": | ||
| for _, ev := range []string{"APPDATA", "CSIDL_APPDATA", "TEMP", "TMP"} { | ||
| if v := os.Getenv(ev); v != "" { | ||
| return filepath.Join(v, base) | ||
| } | ||
| } | ||
| // Worst case: | ||
| return filepath.Join(homeDir(), base) | ||
| } | ||
| if xdg := os.Getenv("XDG_CACHE_HOME"); xdg != "" { | ||
| return filepath.Join(xdg, base) | ||
| } | ||
| return filepath.Join(homeDir(), ".cache", base) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "time" | ||
|
|
||
| "github.com/daocloud/crproxy/internal/acme" | ||
| "github.com/wzshiming/cmux" | ||
| "github.com/wzshiming/cmux/pattern" | ||
| ) | ||
|
|
||
| func Run(ctx context.Context, address string, handler http.Handler, acmeHosts []string, acmeCache string, certFile, privateKeyFile string) error { | ||
| listener, err := net.Listen("tcp", address) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| muxListener := cmux.NewMuxListener(listener) | ||
| tlsListener, err := muxListener.MatchPrefix(pattern.Pattern[pattern.TLS]...) | ||
| if err != nil { | ||
| return fmt.Errorf("match tls listener: %w", err) | ||
| } | ||
| unmatchedListener, err := muxListener.Unmatched() | ||
| if err != nil { | ||
| return fmt.Errorf("unmatched listener: %w", err) | ||
| } | ||
|
|
||
| ctx, cancel := context.WithCancel(ctx) | ||
| defer cancel() | ||
|
|
||
| errCh := make(chan error, 1) | ||
|
|
||
| if (certFile != "" && privateKeyFile != "") || len(acmeHosts) != 0 { | ||
| go func() { | ||
| svc := &http.Server{ | ||
| ReadHeaderTimeout: 5 * time.Second, | ||
| BaseContext: func(_ net.Listener) context.Context { | ||
| return ctx | ||
| }, | ||
| Addr: address, | ||
| Handler: handler, | ||
| } | ||
| if len(acmeHosts) != 0 { | ||
| svc.TLSConfig = acme.NewAcme(acmeHosts, acmeCache) | ||
| } | ||
| err = svc.ServeTLS(tlsListener, certFile, privateKeyFile) | ||
| if err != nil { | ||
| errCh <- fmt.Errorf("serve https: %w", err) | ||
| } | ||
| }() | ||
| } else { | ||
| svc := httptest.Server{ | ||
| Listener: tlsListener, | ||
| Config: &http.Server{ | ||
| ReadHeaderTimeout: 5 * time.Second, | ||
| BaseContext: func(_ net.Listener) context.Context { | ||
| return ctx | ||
| }, | ||
| Addr: address, | ||
| Handler: handler, | ||
| }, | ||
| } | ||
| svc.StartTLS() | ||
| } | ||
|
|
||
| go func() { | ||
| svc := &http.Server{ | ||
| ReadHeaderTimeout: 5 * time.Second, | ||
| BaseContext: func(_ net.Listener) context.Context { | ||
| return ctx | ||
| }, | ||
| Addr: address, | ||
| Handler: handler, | ||
| } | ||
| err = svc.Serve(unmatchedListener) | ||
| if err != nil { | ||
| errCh <- fmt.Errorf("serve http: %w", err) | ||
| } | ||
| }() | ||
|
|
||
| select { | ||
| case err = <-errCh: | ||
| case <-ctx.Done(): | ||
| err = ctx.Err() | ||
| } | ||
|
|
||
| return err | ||
| } |