2020-07-28 19:17:07 +00:00
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package main
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import (
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2020-08-01 15:49:46 +00:00
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"github.com/caddyserver/certmagic"
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2020-07-29 14:41:36 +00:00
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"github.com/go-chi/chi"
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"github.com/go-chi/chi/middleware"
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2020-07-28 19:17:07 +00:00
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"net/http"
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"strconv"
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2020-07-29 15:39:46 +00:00
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"strings"
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2020-07-29 15:17:48 +00:00
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"sync"
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2020-07-28 19:17:07 +00:00
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)
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2020-07-31 14:23:29 +00:00
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const contentTypeHTML = "text/html"
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2020-07-31 19:44:16 +00:00
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var d *dynamicHandler
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2020-08-01 15:49:46 +00:00
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func startServer() (err error) {
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2020-07-31 19:44:16 +00:00
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d = newDynamicHandler()
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2020-07-29 15:17:48 +00:00
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h, err := buildHandler()
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if err != nil {
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2020-08-01 15:49:46 +00:00
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return
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2020-07-28 19:17:07 +00:00
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}
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2020-07-29 15:17:48 +00:00
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d.swapHandler(h)
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2020-08-04 17:42:09 +00:00
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localAddress := ":" + strconv.Itoa(appConfig.Server.Port)
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if appConfig.Server.PublicHttps {
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2020-08-01 15:49:46 +00:00
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initPublicHTTPS()
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2020-08-04 17:42:09 +00:00
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err = certmagic.HTTPS([]string{appConfig.Server.Domain}, d)
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} else if appConfig.Server.LocalHttps {
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2020-08-01 15:49:46 +00:00
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err = http.ListenAndServeTLS(localAddress, "https/server.crt", "https/server.key", d)
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} else {
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err = http.ListenAndServe(localAddress, d)
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2020-07-29 14:41:36 +00:00
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}
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2020-08-01 15:49:46 +00:00
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return
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}
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2020-07-29 14:41:36 +00:00
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2020-08-01 15:49:46 +00:00
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func initPublicHTTPS() {
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certmagic.Default.Storage = &certmagic.FileStorage{Path: "certmagic"}
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certmagic.DefaultACME.Agreed = true
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2020-08-04 17:42:09 +00:00
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certmagic.DefaultACME.Email = appConfig.Server.LetsEncryptMail
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2020-08-01 15:49:46 +00:00
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certmagic.DefaultACME.CA = certmagic.LetsEncryptProductionCA
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2020-07-29 15:17:48 +00:00
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}
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2020-07-31 19:44:16 +00:00
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func reloadRouter() error {
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h, err := buildHandler()
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if err != nil {
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return err
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}
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d.swapHandler(h)
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return nil
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}
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2020-07-29 15:17:48 +00:00
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func buildHandler() (http.Handler, error) {
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r := chi.NewRouter()
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2020-08-04 17:42:09 +00:00
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if appConfig.Server.Logging {
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2020-07-29 15:17:48 +00:00
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r.Use(middleware.RealIP)
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r.Use(middleware.Logger)
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2020-07-28 19:52:56 +00:00
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}
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2020-07-29 15:17:48 +00:00
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r.Use(middleware.Recoverer)
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r.Use(middleware.StripSlashes)
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2020-07-30 13:58:05 +00:00
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r.Use(middleware.GetHead)
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2020-07-29 15:17:48 +00:00
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2020-07-31 19:44:16 +00:00
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r.Route("/api", func(apiRouter chi.Router) {
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2020-08-01 13:16:21 +00:00
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apiRouter.Use(middleware.BasicAuth("API", map[string]string{
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2020-08-04 17:42:09 +00:00
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appConfig.User.Nick: appConfig.User.Password,
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2020-08-01 13:16:21 +00:00
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}))
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2020-07-31 19:44:16 +00:00
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apiRouter.Post("/post", apiPostCreate)
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2020-08-01 13:16:21 +00:00
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apiRouter.Delete("/post", apiPostDelete)
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2020-07-31 19:44:16 +00:00
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})
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2020-07-29 15:17:48 +00:00
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allPostPaths, err := allPostPaths()
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if err != nil {
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return nil, err
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2020-07-30 19:18:13 +00:00
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}
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for _, path := range allPostPaths {
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if path != "" {
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2020-07-31 14:23:29 +00:00
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r.With(cacheMiddleware, minifier.Middleware).Get(path, servePost)
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2020-07-29 15:39:46 +00:00
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}
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}
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allRedirectPaths, err := allRedirectPaths()
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if err != nil {
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return nil, err
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2020-07-30 19:18:13 +00:00
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}
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for _, path := range allRedirectPaths {
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if path != "" {
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2020-07-31 19:02:47 +00:00
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r.With(minifier.Middleware).Get(path, serveRedirect)
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2020-07-29 15:17:48 +00:00
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}
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}
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2020-07-31 19:02:47 +00:00
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r.With(minifier.Middleware).NotFound(serve404)
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2020-07-29 15:17:48 +00:00
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return r, nil
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2020-07-28 19:17:07 +00:00
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}
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2020-07-29 15:17:48 +00:00
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type dynamicHandler struct {
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realHandler http.Handler
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changeMutex *sync.Mutex
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}
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func newDynamicHandler() *dynamicHandler {
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return &dynamicHandler{
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changeMutex: &sync.Mutex{},
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}
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}
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func (d *dynamicHandler) swapHandler(h http.Handler) {
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d.changeMutex.Lock()
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d.realHandler = h
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d.changeMutex.Unlock()
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}
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func (d *dynamicHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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d.realHandler.ServeHTTP(w, r)
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}
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2020-07-29 15:39:46 +00:00
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2020-07-30 19:18:13 +00:00
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func slashTrimmedPath(r *http.Request) string {
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2020-07-31 19:02:47 +00:00
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return trimSlash(r.URL.Path)
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}
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func trimSlash(s string) string {
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if len(s) > 1 {
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s = strings.TrimSuffix(s, "/")
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2020-07-29 15:55:10 +00:00
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}
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2020-07-31 19:02:47 +00:00
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return s
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2020-07-29 20:45:26 +00:00
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}
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