func handler(w http.ResponseWriter, r *http.Request) {
var err error
var db *dropbox.Dropbox
var input io.ReadCloser
var length int64
var ok bool
var cachedItem interface{}
var s string
if r.URL.Path[1:] == "favicon.ico" {
return
}
cachedItem, ok = Lru.Get(r.URL.Path[1:])
if ok {
item := cachedItem.(cacheItem)
s = item.Value
length = item.Length
} else {
var clientid, clientsecret string
var token string
clientid = os.Getenv("CLIENTID")
clientsecret = os.Getenv("CLIENTSECRET")
token = os.Getenv("TOKEN")
// 1. Create a new dropbox object.
db = dropbox.NewDropbox()
// 2. Provide your clientid and clientsecret (see prerequisite).
db.SetAppInfo(clientid, clientsecret)
// 3. Provide the user token.
db.SetAccessToken(token)
// 4. Send your commands.
// In this example, you will create a new folder named "demo".
if input, length, _, err = db.Thumbnails("/"+r.URL.Path[2:], "jpeg", r.URL.Path[1:2]); err != nil {
fmt.Printf("Error: %s Url: %s Size: \n", err, r.URL.Path[2:], r.URL.Path[1:2])
} else {
//fmt.Printf("Error %s\n", input)
buf := new(bytes.Buffer)
buf.ReadFrom(input)
s = buf.String()
Lru.Add(r.URL.Path[1:], cacheItem{Value: s, Length: length})
}
}
w.Header().Set("Content-Length", strconv.FormatInt(length, 10))
fmt.Fprintf(w, "%s", s)
}
