func syncHandler(w http.ResponseWriter, r *http.Request) {
workerUuid := r.URL.Query().Get("uuid")
if worker, ok := workerMap[workerUuid]; ok {
if r.Method == "POST" {
r.ParseForm()
if b64_parts, ok := r.Form["data"]; ok {
b64 := b64_parts[0]
decodeLen := base64.StdEncoding.DecodedLen(len(b64))
data := make([]byte, decodeLen)
n, err := base64.StdEncoding.Decode(data, []byte(b64))
if err != nil {
crowbar.WriteHTTPError(w, "Could not decode B64.")
} else {
worker.commandChannel <- workerCommand{command: command_data, extra: data[:n]}
crowbar.WriteHTTPOK(w, "Sent.")
}
} else {
crowbar.WriteHTTPError(w, "Data is required.")
}
} else {
response := <-worker.responseChannel
switch response.response {
case response_data:
crowbar.WriteHTTPData(w, response.extra_byte)
case response_quit:
crowbar.WriteHTTPQuit(w, response.extra_string)
}
}
} else {
crowbar.WriteHTTPError(w, "No such UUID")
}
}
func authHandler(w http.ResponseWriter, r *http.Request) {
nonce := make([]byte, 16)
_, err := rand.Read(nonce)
if err != nil {
crowbar.WriteHTTPError(w, "Internal error.")
return
}
username := r.URL.Query().Get("username")
_, ok := UserGet(username)
if !ok {
crowbar.WriteHTTPError(w, "No such user.")
return
}
nonceMap[username] = nonce
crowbar.WriteHTTPData(w, nonce)
}