现在我正在将 http:// 的所有内容重定向到 https://，如下所示：
func main() {
router := httprouter.New()
router.POST("/api/register", toHandle(register))
router.GET("/api/token/verify/:token", toHandle(verifyToken))
router.GET("/api/availability/username/:username", toHandle(usernameAvailability))
router.POST("/api/search/cities", toHandle(searchCities))
router.POST("/api/user", toHandle(createUser))
router.GET("/api/user/:id", toHandle(userById))
router.POST("/api/login", toHandle(login))
router.NotFound = &serveStatic{}
certificate := "/srv/ssl/ssl-bundle.crt"
privateKey := "/srv/ssl/private.key"
go func() {
if err := http.ListenAndServe(":80", http.HandlerFunc(redirectTLS)); err != nil {
log.Fatalf("ListenAndServe error: %v", err)
}
}()
log.Fatal(http.ListenAndServeTLS(":443", certificate, privateKey, router))
}
func redirectTLS(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "https://example.com"+r.RequestURI, http.StatusMovedPermanently)
}
type serveStatic struct{}
func (df *serveStatic) ServeHTTP(w http.ResponseWriter, req *http.Request) {
path := filepath.FromSlash(config.DirRoot + req.URL.Path)
data, err := ioutil.ReadFile(path)
var contentType string
if err == nil {
if strings.HasSuffix(path, ".css") {
contentType = "text/css"
} else if strings.HasSuffix(path, ".html") {
contentType = "text/html"
} else if strings.HasSuffix(path, ".js") {
contentType = "application/javascript"
} else if strings.HasSuffix(path, ".png") {
contentType = "image/png"
} else if strings.HasSuffix(path, ".jpg") {
contentType = "image/jpeg"
} else if strings.HasSuffix(path, ".ico") {
contentType = "image/x-icon"
} else {
contentType = "text/plain"
}
// spew.Dump(path)
w.Header().Add("Content-Type", contentType)
// Prefix files with gz such as "all.gz.js" if you want gzipped files to be served.
if strings.Contains(path, ".gz.") {
w.Header().Add("Content-Encoding", "gzip")
}
w.Write(data)
} else {
path := filepath.FromSlash(config.DirRoot + "/index.html")
data, err = ioutil.ReadFile(path)
contentType = "text/html"
if err == nil {
w.Header().Add("Content-Type", contentType)
w.Write(data)
} else {
w.WriteHeader(404)
w.Write([]byte("404 - " + http.StatusText(404)))
}
}
}
但这并没有重定向https://www.example.com https://www.example.com to https://example.com https://example.com，它仅重定向http://example.com http://example.com to https://example.com https://example.com.
我怎样才能检测到以https://www.example.com https://www.example.com?
关于如何实现这一目标有什么建议吗？
