/**
* Returns the HTTP encoded string required for web service authentication.
*
* <p>Order of authentication methods: token then username/password, if token not initialised or
* null if both methods not initialised.
*
* @return String containing HTTP encoded string or null.
* @throws UnsupportedEncodingException
*/
public static String getAuth() throws UnsupportedEncodingException {
StringBuilder data = new StringBuilder();
if (MoodleCallRestWebService.getToken() != null) {
data.append(URLEncoder.encode("wstoken", "UTF-8"))
.append("=")
.append(URLEncoder.encode(MoodleCallRestWebService.getToken(), "UTF-8"));
} else {
if (MoodleCallRestWebService.getUsername() != null
&& MoodleCallRestWebService.getPassword() != null) {
data.append(URLEncoder.encode("wsusername", "UTF-8"))
.append("=")
.append(URLEncoder.encode(MoodleCallRestWebService.getUsername(), "UTF-8"));
data.append("&"); // Fix by César Martínez
data.append(URLEncoder.encode("wspassword", "UTF-8"))
.append("=")
.append(URLEncoder.encode(MoodleCallRestWebService.getPassword(), "UTF-8"));
} else return null;
}
return data.toString();
}
