// Setup configures the middleware
func Setup(c *setup.Controller) (middleware.Middleware, error) {
config, _ := config.ParseHugo(c)
utils.RunHugo(config)
return func(next middleware.Handler) middleware.Handler {
return &CaddyHugo{Next: next, Config: config}
}, nil
}
func (h CaddyHugo) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
// Only handle /admin path
if middleware.Path(r.URL.Path).Matches("/admin") {
var err error
var page string
code := 404
// If the length of the components string is less than one, the variable
// page will always be "admin"
if len(utils.ParseComponents(r)) > 1 {
page = utils.ParseComponents(r)[1]
} else {
page = utils.ParseComponents(r)[0]
}
// If the page isn't "assets" neither "edit", it should always put a
// trailing slash in the path
if page != "assets" && page != "edit" {
if r.URL.Path[len(r.URL.Path)-1] != '/' {
http.Redirect(w, r, r.URL.Path+"/", http.StatusTemporaryRedirect)
return 0, nil
}
}
// If the current page is only "/admin/", redirect to "/admin/browse/contents"
if r.URL.Path == "/admin/" {
http.Redirect(w, r, "/admin/browse/content/", http.StatusTemporaryRedirect)
return 0, nil
}
// Serve the static assets
if page == "assets" {
filename := strings.Replace(r.URL.Path, "/admin/", "", 1)
file, err := assets.Asset(filename)
if err != nil {
return 404, nil
}
// Get the file extension ant its mime type
extension := filepath.Ext(filename)
mime := mime.TypeByExtension(extension)
// Write the header with the Content-Type and write the file
// content to the buffer
w.Header().Set("Content-Type", mime)
w.Write(file)
return 200, nil
}
// If the url matches exactly with /admin/settings/ serve that page
// page variable isn't used here to avoid people using URLs like
// "/admin/settings/something".
if r.URL.Path == "/admin/settings/" {
var frontmatter string
if _, err := os.Stat("config.yaml"); err == nil {
frontmatter = "yaml"
}
if _, err := os.Stat("config.json"); err == nil {
frontmatter = "json"
}
if _, err := os.Stat("config.toml"); err == nil {
frontmatter = "toml"
}
http.Redirect(w, r, "/admin/edit/config."+frontmatter, http.StatusTemporaryRedirect)
return 0, nil
}
// Browse page
if page == "browse" {
code, err = browse.ServeHTTP(w, r, h.Config)
}
// Edit page
if page == "edit" {
code, err = editor.ServeHTTP(w, r, h.Config)
}
// Whenever the header "X-Refenerate" is true, the website should be
// regenerated. Used in edit and settings, for example.
if r.Header.Get("X-Regenerate") == "true" {
utils.RunHugo(h.Config)
}
return code, err
}
return h.Next.ServeHTTP(w, r)
}