commento/api/router_static.go

106 lines
2.3 KiB
Go

package main
import (
"bytes"
"fmt"
"github.com/gorilla/mux"
"html/template"
"io/ioutil"
"net/http"
"os"
"path"
"mime"
)
func redirectLogin(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/login", 301)
}
type staticAssetPlugs struct {
Origin string
}
type staticHtmlPlugs struct {
CdnPrefix string
}
func initStaticRouter(router *mux.Router) error {
asset := make(map[string]string)
for _, dir := range []string{"js", "css", "images"} {
sl := string(os.PathSeparator)
dir = sl + dir
files, err := ioutil.ReadDir(os.Getenv("STATIC") + dir)
if err != nil {
logger.Errorf("cannot read directory %s%s: %v", os.Getenv("STATIC"), dir, err)
return err
}
for _, file := range files {
p := dir + sl + file.Name()
contents, err := ioutil.ReadFile(os.Getenv("STATIC") + p)
if err != nil {
logger.Errorf("cannot read file %s%s: %v", os.Getenv("STATIC"), p, err)
return err
}
prefix := ""
if dir == "/js" {
prefix = "window.commento_origin='" + os.Getenv("ORIGIN") + "';\n"
prefix += "window.commento_cdn='" + os.Getenv("CDN_PREFIX") + "';\n"
}
asset[p] = prefix + string(contents);
router.HandleFunc(p, func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", mime.TypeByExtension(path.Ext(r.URL.Path)))
fmt.Fprint(w, asset[r.URL.Path])
})
}
}
pages := []string{
"login",
"signup",
"dashboard",
"logout",
"account",
}
html := make(map[string]string)
for _, page := range pages {
sl := string(os.PathSeparator)
page = sl + page
file := page + ".html"
contents, err := ioutil.ReadFile(os.Getenv("STATIC") + file)
if err != nil {
logger.Errorf("cannot read file %s%s: %v", os.Getenv("STATIC"), file, err)
return err
}
t, err := template.New(page).Delims("<<<", ">>>").Parse(string(contents))
if err != nil {
logger.Errorf("cannot parse %s%s template: %v", os.Getenv("STATIC"), file, err)
return err
}
var buf bytes.Buffer
t.Execute(&buf, &staticHtmlPlugs{CdnPrefix: os.Getenv("CDN_PREFIX")})
html[page] = buf.String()
}
for _, page := range pages {
router.HandleFunc("/" + page, func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, html[r.URL.Path])
})
}
router.HandleFunc("/", redirectLogin)
return nil
}