Package io.helidon.security.jwt

Class JwtUtil

java.lang.Object

io.helidon.security.jwt.JwtUtil

public final class JwtUtil
extends Object

Utilities for JWT and JWK parsing.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JwtUtil.Address	Address class representing the JSON object for address.

Method Summary

Modifier and Type	Method	Description
static BigInteger	asBigInteger(JsonObject json, String key, String description)	Extract a key value from json object that is base64-url encoded and convert it to big integer.
static byte[]	asByteArray(JsonObject json, String key, String description)	Extract a key value from json object that is a base64-url encoded byte array.
static String	asString(JsonObject json, String key, String description)	Extract a key value from json object that is string.
static Optional<BigInteger>	getBigInteger(JsonObject json, String key, String description)	Extract a key value from json object that is base64-url encoded and convert it to big integer if present.
static Optional<byte[]>	getByteArray(JsonObject json, String key, String description)	Extract a key value from json object that is a base64-url encoded byte array, if present.
static KeyFactory	getKeyFactory(String algorithm)	Create a key factory for algorithm.
static Mac	getMac(String algorithm)	Create a MAC for algorithm.
static Signature	getSignature(String signatureAlgorithm)	Create a signature for algorithm.
static Optional<String>	getString(JsonObject json, String key)	Extract a key value from json object that is string if present.
static Optional<List<String>>	getStrings(JsonObject json, String key)	Extract a key value from json object that is a list of strings if present.
static Object	toObject(JsonValue jsonValue)	Transform from json to object.
static Map<String,JsonValue>	transformToJson(Map<String,Object> claims)	Transform a map of strings to objects to a map of string to JSON values.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

asBigInteger

public static BigInteger asBigInteger(JsonObject json,
                                      String key,
                                      String description)
                               throws JwtException

Extract a key value from json object that is base64-url encoded and convert it to big integer.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

description - description of the field for error handling

Returns:

BigInteger value

Throws:

JwtException - in case the key is not present or is of invalid content

asString

public static String asString(JsonObject json,
                              String key,
                              String description)
                       throws JwtException

Extract a key value from json object that is string.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

description - description of the field for error handling

Returns:

String value

Throws:

JwtException - in case the key is not present or is of invalid content

getBigInteger

public static Optional<BigInteger> getBigInteger(JsonObject json,
                                                 String key,
                                                 String description)
                                          throws JwtException

Extract a key value from json object that is base64-url encoded and convert it to big integer if present.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

description - description of the field for error handling

Returns:

BigInteger value if present

Throws:

JwtException - in case the key is of invalid content

getStrings

public static Optional<List<String>> getStrings(JsonObject json,
                                                String key)
                                         throws JwtException

Extract a key value from json object that is a list of strings if present.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

Returns:

List of String value if present

Throws:

JwtException - in case the key is of invalid content

getString

public static Optional<String> getString(JsonObject json,
                                         String key)
                                  throws JwtException

Extract a key value from json object that is string if present.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

Returns:

String value if present

Throws:

JwtException - in case the key is of invalid content

getByteArray

public static Optional<byte[]> getByteArray(JsonObject json,
                                            String key,
                                            String description)
                                     throws JwtException

Extract a key value from json object that is a base64-url encoded byte array, if present.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

description - description of the field for error handling

Returns:

byte array value if present

Throws:

JwtException - in case the key is of invalid content or not base64 encoded

asByteArray

public static byte[] asByteArray(JsonObject json,
                                 String key,
                                 String description)
                          throws JwtException

Extract a key value from json object that is a base64-url encoded byte array.

Parameters:

json - JsonObject to read key from

key - key of the value we want to read

description - description of the field for error handling

Returns:

byte array value

Throws:

JwtException - in case the key is not present, is of invalid content or not base64 encoded

getKeyFactory

public static KeyFactory getKeyFactory(String algorithm)
                                throws JwtException

Create a key factory for algorithm.

Parameters:

algorithm - security algorithm (such as RSA, EC)

Returns:

KeyFactory instance

Throws:

JwtException - in case the algorithm is invalid

getSignature

public static Signature getSignature(String signatureAlgorithm)
                              throws JwtException

Create a signature for algorithm.

Parameters:

signatureAlgorithm - security signature algorithm (such as "SHA512withRSA")

Returns:

Signature instance

Throws:

JwtException - in case the algorithm is invalid or not supported by this JVM

getMac

public static Mac getMac(String algorithm)
                  throws JwtException

Create a MAC for algorithm. Similar to signature for symmetric ciphers (such as "HmacSHA256").

Parameters:

algorithm - security MAC algorithm

Returns:

Mac instance

Throws:

JwtException - in case the algorithm is invalid or not supported by this JVM

transformToJson

public static Map<String,JsonValue> transformToJson(Map<String,Object> claims)

Transform a map of strings to objects to a map of string to JSON values. Each object is checked for type and if supported, transformed to appropriate JSON value.

Parameters:

claims - map to transform from

Returns:

resulting map

toObject

public static Object toObject(JsonValue jsonValue)

Transform from json to object.

Parameters:

jsonValue - json value

Returns:

object most correct for the type, or string value if not understood (e.g. json object)