Package com.nimbusds.jose

Class PlainHeader

java.lang.Object

com.nimbusds.jose.Header

com.nimbusds.jose.PlainHeader

All Implemented Interfaces:

Serializable

@Immutable
public final class PlainHeader
extends Header

Unsecured (alg=none) JOSE header. This class is immutable.

Supports all registered header parameters of the unsecured JOSE object specification:

• alg (set to "none").
• typ
• cty
• crit

The header may also carry custom parameters; these will be serialised and parsed along the registered ones.

Example:

 {
   "alg" : "none"
 }
 

Version:

2021-06-04

Author:

Vladimir Dzhuvinov

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PlainHeader.Builder	Builder for constructing unsecured (plain) headers.

Field Summary

Fields inherited from class com.nimbusds.jose.Header

MAX_HEADER_STRING_LENGTH

Constructor Summary

Constructors

Constructor	Description
PlainHeader()	Creates a new minimal unsecured (plain) header with algorithm none.
PlainHeader(JOSEObjectType typ, String cty, Set<String> crit, Map<String,Object> customParams, Base64URL parsedBase64URL)	Creates a new unsecured (plain) header with algorithm none.
PlainHeader(PlainHeader plainHeader)	Deep copy constructor.

Method Summary

Modifier and Type	Method	Description
Algorithm	getAlgorithm()	Gets the algorithm (alg) parameter.
static Set<String>	getRegisteredParameterNames()	Gets the registered parameter names for unsecured headers.
static PlainHeader	parse(Base64URL base64URL)	Parses an unsecured header from the specified Base64URL.
static PlainHeader	parse(String jsonString)	Parses an unsecured header from the specified JSON string.
static PlainHeader	parse(String jsonString, Base64URL parsedBase64URL)	Parses an unsecured header from the specified JSON string.
static PlainHeader	parse(Map<String,Object> jsonObject)	Parses an unsecured header from the specified JSON object.
static PlainHeader	parse(Map<String,Object> jsonObject, Base64URL parsedBase64URL)	Parses an unsecured header from the specified JSON object.

Methods inherited from class com.nimbusds.jose.Header

getContentType, getCriticalParams, getCustomParam, getCustomParams, getIncludedParams, getParsedBase64URL, getType, parseAlgorithm, toBase64URL, toJSONObject, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PlainHeader

public PlainHeader()

Creates a new minimal unsecured (plain) header with algorithm none.

PlainHeader

public PlainHeader(JOSEObjectType typ,
                   String cty,
                   Set<String> crit,
                   Map<String,Object> customParams,
                   Base64URL parsedBase64URL)

Creates a new unsecured (plain) header with algorithm none.

Parameters:

typ - The type (typ) parameter, null if not specified.

cty - The content type (cty) parameter, null if not specified.

crit - The names of the critical header (crit) parameters, empty set or null if none.

customParams - The custom parameters, empty map or null if none.

parsedBase64URL - The parsed Base64URL, null if the header is created from scratch.

PlainHeader

public PlainHeader(PlainHeader plainHeader)

Deep copy constructor.

Parameters:

plainHeader - The unsecured header to copy. Must not be null.

Method Detail

getRegisteredParameterNames

public static Set<String> getRegisteredParameterNames()

Gets the registered parameter names for unsecured headers.

Returns:

The registered parameter names, as an unmodifiable set.

getAlgorithm

public Algorithm getAlgorithm()

Gets the algorithm (alg) parameter.

Overrides:

getAlgorithm in class Header

Returns:

Algorithm.NONE.

parse

public static PlainHeader parse(Map<String,Object> jsonObject)
                         throws ParseException

Parses an unsecured header from the specified JSON object.

Parameters:

jsonObject - The JSON object to parse. Must not be null.

Returns:

The unsecured header.

Throws:

ParseException - If the specified JSON object doesn't represent a valid unsecured header.

parse

public static PlainHeader parse(Map<String,Object> jsonObject,
                                Base64URL parsedBase64URL)
                         throws ParseException

Parses an unsecured header from the specified JSON object.

Parameters:

jsonObject - The JSON object to parse. Must not be null.

parsedBase64URL - The original parsed Base64URL, null if not applicable.

Returns:

The unsecured header.

Throws:

ParseException - If the specified JSON object doesn't represent a valid unsecured header.

parse

public static PlainHeader parse(String jsonString)
                         throws ParseException

Parses an unsecured header from the specified JSON string.

Parameters:

jsonString - The JSON string to parse. Must not be null.

Returns:

The unsecured header.

Throws:

ParseException - If the specified JSON string doesn't represent a valid unsecured header.

parse

public static PlainHeader parse(String jsonString,
                                Base64URL parsedBase64URL)
                         throws ParseException

Parses an unsecured header from the specified JSON string.

Parameters:

jsonString - The JSON string to parse. Must not be null.

parsedBase64URL - The original parsed Base64URL, null if not applicable.

Returns:

The unsecured header.

Throws:

ParseException - If the specified JSON string doesn't represent a valid unsecured header.

parse

public static PlainHeader parse(Base64URL base64URL)
                         throws ParseException

Parses an unsecured header from the specified Base64URL.

Parameters:

base64URL - The Base64URL to parse. Must not be null.

Returns:

The unsecured header.

Throws:

ParseException - If the specified Base64URL doesn't represent a valid unsecured header.