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Allow accepting remote connections

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Close #3498

  # FZF_API_KEY is required for a non-localhost listen address
  FZF_API_KEY=xxx fzf --listen 0.0.0.0:6266
This commit is contained in:
Junegunn Choi
2023-11-04 16:06:59 +09:00
parent 70c19ccf16
commit 3f78d76da1
5 changed files with 72 additions and 40 deletions
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55
src/server.go
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@@ -26,12 +26,13 @@ type getParams struct {
}
const (
crlf = "\r\n"
httpOk = "HTTP/1.1 200 OK" + crlf
httpBadRequest = "HTTP/1.1 400 Bad Request" + crlf
httpUnauthorized = "HTTP/1.1 401 Unauthorized" + crlf
httpReadTimeout = 10 * time.Second
maxContentLength = 1024 * 1024
crlf = "\r\n"
httpOk = "HTTP/1.1 200 OK" + crlf
httpBadRequest = "HTTP/1.1 400 Bad Request" + crlf
httpUnauthorized = "HTTP/1.1 401 Unauthorized" + crlf
httpReadTimeout = 10 * time.Second
maxContentLength = 1024 * 1024
defaultListenAddr = "localhost:0"
)
type httpServer struct {
@@ -40,30 +41,52 @@ type httpServer struct {
responseChannel chan string
}
func startHttpServer(port int, actionChannel chan []*action, responseChannel chan string) (error, int) {
if port < 0 {
return nil, port
func parseListenAddress(address string) (error, string, int) {
parts := strings.SplitN(address, ":", 3)
if len(parts) == 1 {
parts = []string{"localhost", parts[0]}
}
if len(parts) != 2 {
return fmt.Errorf("invalid listen address: %s", address), "", 0
}
portStr := parts[len(parts)-1]
port, err := strconv.Atoi(portStr)
if err != nil || port < 0 || port > 65535 {
return fmt.Errorf("invalid listen port: %s", portStr), "", 0
}
if len(parts[0]) == 0 {
parts[0] = "localhost"
}
return nil, parts[0], port
}
func startHttpServer(address string, actionChannel chan []*action, responseChannel chan string) (error, int) {
err, host, port := parseListenAddress(address)
if err != nil {
return err, port
}
listener, err := net.Listen("tcp", fmt.Sprintf("localhost:%d", port))
apiKey := os.Getenv("FZF_API_KEY")
if host != "localhost" && host != "127.0.0.1" && len(apiKey) == 0 {
return fmt.Errorf("FZF_API_KEY is required for remote access"), port
}
listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", host, port))
if err != nil {
return fmt.Errorf("port not available: %d", port), port
return fmt.Errorf("failed to listen on %s", address), port
}
if port == 0 {
addr := listener.Addr().String()
parts := strings.SplitN(addr, ":", 2)
parts := strings.Split(addr, ":")
if len(parts) < 2 {
return fmt.Errorf("cannot extract port: %s", addr), port
}
var err error
port, err = strconv.Atoi(parts[1])
if err != nil {
if port, err := strconv.Atoi(parts[len(parts)-1]); err != nil {
return err, port
}
}
server := httpServer{
apiKey: []byte(os.Getenv("FZF_API_KEY")),
apiKey: []byte(apiKey),
actionChannel: actionChannel,
responseChannel: responseChannel,
}