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TokenUtils.java
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25 lines (22 loc) · 894 Bytes
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package com.auth0.jwt;
import com.auth0.jwt.exceptions.JWTDecodeException;
abstract class TokenUtils {
/**
* Splits the given token on the "." chars into a String array with 3 parts.
*
* @param token the string to split.
* @return the array representing the 3 parts of the token.
* @throws JWTDecodeException if the Token doesn't have 3 parts.
*/
static String[] splitToken(String token) throws JWTDecodeException {
String[] parts = token.split("\\.");
if (parts.length == 2 && token.endsWith(".")) {
//Tokens with alg='none' have empty String as Signature.
parts = new String[]{parts[0], parts[1], ""};
}
if (parts.length != 3) {
throw new JWTDecodeException(String.format("The token was expected to have 3 parts, but got %s.", parts.length));
}
return parts;
}
}