func getTokenFromHeader(w http.ResponseWriter, r *http.Request) (token string, err error) {
// Get token from header
token = r.Header.Get("X-Auth-Token")
if token == "" {
return "", errors.New("httpApiHandlers: Could not retrieve token from headers")
}
// Check token
err = appauth.CheckToken(token)
if err != nil {
return "", errors.New("httpApiHandlers: Token invalid")
}
return
}
func processCommand(text string) (result interface{}, err error) {
// Commands are received split by tilde (~)
// command~DATA
cleanText := strings.Replace(text, "\n", "", -1)
fmt.Printf("### %s ####\n", cleanText)
command := strings.Split(cleanText, "~")
// Check if we received a command
if len(command) == 0 {
fmt.Println("No command received")
return
}
// Remove null termination from data
command[len(command)-1] = string(bytes.Trim([]byte(command[len(command)-1]), "\x00"))
// Check application auth. This is always the first value, if no token a 0 is sent
isCreateAccount := (command[0] == "0" && command[1] == "acmt" && command[2] == "1")
isLogIn := (command[0] == "0" && command[1] == "appauth" && command[2] == "2")
isCreateUserPassword := (command[0] == "0" && command[1] == "appauth" && command[2] == "3")
if !isCreateAccount || !isLogIn || !isCreateUserPassword {
err := appauth.CheckToken(command[0])
if err != nil {
return "", errors.New("server.processCommand: " + err.Error())
}
}
switch command[1] {
case "appauth":
// Check "help"
if command[2] == "help" {
return "Format of appauth: appauth~userName~password", nil
}
result, err = appauth.ProcessAppAuth(command)
if err != nil {
return "", errors.New("server.processCommand: " + err.Error())
}
break
case "pain":
// Check "help"
if command[2] == "help" {
return "Format of PAIN transaction:\npain\npainType~senderAccountNumber@SenderBankNumber\nreceiverAccountNumber@ReceiverBankNumber\ntransactionAmount\n\nBank numbers may be left void if bank is local", nil
}
result, err = transactions.ProcessPAIN(command)
if err != nil {
return "", errors.New("server.processCommand: " + err.Error())
}
case "camt":
case "acmt":
// Check "help"
if command[2] == "help" {
return "", nil // @TODO Help section
}
result, err = accounts.ProcessAccount(command)
case "remt":
case "reda":
case "pacs":
case "auth":
break
default:
return "No valid command received", nil
}
return
}