// ExchangeAppKeyForToken enables authentication with the App Access Key
func (c *Component) ExchangeAppKeyForToken(appID, key string) (string, error) {
issuerID := keys.KeyIssuer(key)
if issuerID == "" {
// Take the first configured auth server
for k := range c.Config.AuthServers {
issuerID = k
break
}
key = fmt.Sprintf("%s.%s", issuerID, key)
}
issuer, ok := c.Config.AuthServers[issuerID]
if !ok {
return "", fmt.Errorf("Auth server %s not registered", issuer)
}
srv, _ := parseAuthServer(issuer)
oauth := oauth.OAuth(srv.url, &oauth.Client{
ID: srv.username,
Secret: srv.password,
})
token, err := oauth.ExchangeAppKeyForToken(appID, key)
if err != nil {
return "", err
}
return token.AccessToken, nil
}
// getOAuth gets the OAuth client
func getOAuth() *oauth.Config {
return oauth.OAuth(viper.GetString("auth-server"), &oauth.Client{
ID: "ttnctl",
Secret: "ttnctl",
ExtraHeaders: map[string]string{
"User-Agent": GetUserAgent(),
},
})
}