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server.go
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package gcs_proxy
import (
"html/template"
"mime"
"net/http"
"path"
"log"
"strings"
)
type Server struct {
repository ObjectRepository
}
func (s Server) renderTemplate(objects []Object, w http.ResponseWriter) (err error) {
t := template.New("template")
template, err := t.Parse(`
<html>
<head>
<link rel="stylesheet" type="text/css" href="/static/style.css">
</head>
<body>
<a href="../">../</a></br>
{{range .}}
<a href="/{{.GetPath}}">{{.GetName}}</a></br>
{{end}}
</body>
</html>
`)
if err != nil {
return
}
return template.Execute(w, objects)
}
func (s Server) Handler(w http.ResponseWriter, r *http.Request) {
objPath := r.URL.Path
if objPath == "/favicon.ico" {
return
}
log.Println("Handling request for: ", objPath)
if objPath != "/" && !strings.HasSuffix(objPath,"/") {
isFile, err := s.repository.IsFile(objPath)
if err != nil {
handleError(err, w)
return
}
if isFile {
ext := path.Ext(objPath)
contentType := mime.TypeByExtension(ext)
if contentType != "" {
w.Header().Set("Content-Type", contentType)
}
object, err := s.repository.GetObject(objPath)
if err != nil {
handleError(err, w)
return
}
w.Write(object)
return
}
}
objects, err := s.repository.GetObjects(objPath)
if err != nil {
handleError(err, w)
return
}
err = s.renderTemplate(objects, w)
if err != nil {
handleError(err, w)
return
}
}
func handleError(err error, w http.ResponseWriter) {
log.Print("Shieeet, got an error:", err)
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(err.Error()))
}
func NewServer(repository ObjectRepository) Server {
return Server{
repository: repository,
}
}