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OAuth 2.0 SDK with OpenID Connection extensions for developing client
and server applications.
package com.nimbusds.oauth2.sdk;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import com.nimbusds.oauth2.sdk.auth.ClientAuthentication;
import com.nimbusds.oauth2.sdk.http.CommonContentTypes;
import com.nimbusds.oauth2.sdk.http.HTTPRequest;
import com.nimbusds.oauth2.sdk.token.AccessToken;
import com.nimbusds.oauth2.sdk.token.RefreshToken;
import com.nimbusds.oauth2.sdk.token.Token;
import com.nimbusds.oauth2.sdk.token.TypelessAccessToken;
import com.nimbusds.oauth2.sdk.util.URLUtils;
import net.jcip.annotations.Immutable;
import net.minidev.json.JSONObject;
/**
* Token introspection request. Used by a protected resource to obtain the
* authorisation for a submitted access token. May also be used by clients to
* query a refresh token.
*
* The protected resource may be required to authenticate itself to the
* token introspection endpoint with a standard client
* {@link ClientAuthentication authentication method}, such as
* {@link com.nimbusds.oauth2.sdk.auth.ClientSecretBasic client_secret_basic},
* or with a dedicated {@link AccessToken access token}.
*
*
Example token introspection request, where the protected resource
* authenticates itself with a secret (the token type is also hinted):
*
*
* POST /introspect HTTP/1.1
* Host: server.example.com
* Accept: application/json
* Content-Type: application/x-www-form-urlencoded
* Authorization: Basic czZCaGRSa3F0MzpnWDFmQmF0M2JW
*
* token=mF_9.B5f-4.1JqM&token_type_hint=access_token
*
*
* Example token introspection request, where the protected resource
* authenticates itself with a bearer token:
*
*
* POST /introspect HTTP/1.1
* Host: server.example.com
* Accept: application/json
* Content-Type: application/x-www-form-urlencoded
* Authorization: Bearer 23410913-abewfq.123483
*
* token=2YotnFZFEjr1zCsicMWpAA
*
*
* Related specifications:
*
*
* - OAuth 2.0 Token Introspection (RFC 7662).
*
*/
@Immutable
public class TokenIntrospectionRequest extends AbstractOptionallyAuthenticatedRequest {
/**
* The token to introspect.
*/
private final Token token;
/**
* Optional access token to authorise the submitter.
*/
private final AccessToken clientAuthz;
/**
* Optional additional parameters.
*/
private final Map customParams;
/**
* Creates a new token introspection request. The request submitter is
* not authenticated.
*
* @param uri The URI of the token introspection endpoint. May be
* {@code null} if the {@link #toHTTPRequest} method will
* not be used.
* @param token The access or refresh token to introspect. Must not be
* {@code null}.
*/
public TokenIntrospectionRequest(final URI uri,
final Token token) {
this(uri, token, null);
}
/**
* Creates a new token introspection request. The request submitter is
* not authenticated.
*
* @param uri The URI of the token introspection endpoint. May
* be {@code null} if the {@link #toHTTPRequest}
* method will not be used.
* @param token The access or refresh token to introspect. Must
* not be {@code null}.
* @param customParams Optional custom parameters, {@code null} if
* none.
*/
public TokenIntrospectionRequest(final URI uri,
final Token token,
final Map customParams) {
super(uri, null);
if (token == null)
throw new IllegalArgumentException("The token must not be null");
this.token = token;
this.clientAuthz = null;
this.customParams = customParams != null ? customParams : Collections.emptyMap();
}
/**
* Creates a new token introspection request. The request submitter may
* authenticate with a secret or private key JWT assertion.
*
* @param uri The URI of the token introspection endpoint. May
* be {@code null} if the {@link #toHTTPRequest}
* method will not be used.
* @param clientAuth The client authentication, {@code null} if none.
* @param token The access or refresh token to introspect. Must
* not be {@code null}.
*/
public TokenIntrospectionRequest(final URI uri,
final ClientAuthentication clientAuth,
final Token token) {
this(uri, clientAuth, token, null);
}
/**
* Creates a new token introspection request. The request submitter may
* authenticate with a secret or private key JWT assertion.
*
* @param uri The URI of the token introspection endpoint. May
* be {@code null} if the {@link #toHTTPRequest}
* method will not be used.
* @param clientAuth The client authentication, {@code null} if none.
* @param token The access or refresh token to introspect. Must
* not be {@code null}.
* @param customParams Optional custom parameters, {@code null} if
* none.
*/
public TokenIntrospectionRequest(final URI uri,
final ClientAuthentication clientAuth,
final Token token,
final Map customParams) {
super(uri, clientAuth);
if (token == null)
throw new IllegalArgumentException("The token must not be null");
this.token = token;
this.clientAuthz = null;
this.customParams = customParams != null ? customParams : Collections.emptyMap();
}
/**
* Creates a new token introspection request. The request submitter may
* authorise itself with an access token.
*
* @param uri The URI of the token introspection endpoint. May
* be {@code null} if the {@link #toHTTPRequest}
* method will not be used.
* @param clientAuthz The client authorisation, {@code null} if none.
* @param token The access or refresh token to introspect. Must
* not be {@code null}.
*/
public TokenIntrospectionRequest(final URI uri,
final AccessToken clientAuthz,
final Token token) {
this(uri, clientAuthz, token, null);
}
/**
* Creates a new token introspection request. The request submitter may
* authorise itself with an access token.
*
* @param uri The URI of the token introspection endpoint. May
* be {@code null} if the {@link #toHTTPRequest}
* method will not be used.
* @param clientAuthz The client authorisation, {@code null} if none.
* @param token The access or refresh token to introspect. Must
* not be {@code null}.
* @param customParams Optional custom parameters, {@code null} if
* none.
*/
public TokenIntrospectionRequest(final URI uri,
final AccessToken clientAuthz,
final Token token,
final Map customParams) {
super(uri, null);
if (token == null)
throw new IllegalArgumentException("The token must not be null");
this.token = token;
this.clientAuthz = clientAuthz;
this.customParams = customParams != null ? customParams : Collections.emptyMap();
}
/**
* Returns the client authorisation.
*
* @return The client authorisation as an access token, {@code null} if
* none.
*/
public AccessToken getClientAuthorization() {
return clientAuthz;
}
/**
* Returns the token to introspect. The {@code instanceof} operator can
* be used to infer the token type. If it's neither
* {@link com.nimbusds.oauth2.sdk.token.AccessToken} nor
* {@link com.nimbusds.oauth2.sdk.token.RefreshToken} the
* {@code token_type_hint} has not been provided as part of the token
* revocation request.
*
* @return The token.
*/
public Token getToken() {
return token;
}
/**
* Returns the custom request parameters.
*
* @return The custom request parameters, empty map if none.
*/
public Map getCustomParameters() {
return customParams;
}
@Override
public HTTPRequest toHTTPRequest() {
if (getEndpointURI() == null)
throw new SerializeException("The endpoint URI is not specified");
URL url;
try {
url = getEndpointURI().toURL();
} catch (MalformedURLException e) {
throw new SerializeException(e.getMessage(), e);
}
HTTPRequest httpRequest = new HTTPRequest(HTTPRequest.Method.POST, url);
httpRequest.setContentType(CommonContentTypes.APPLICATION_URLENCODED);
Map params = new HashMap<>();
params.put("token", token.getValue());
if (token instanceof AccessToken) {
params.put("token_type_hint", "access_token");
} else if (token instanceof RefreshToken) {
params.put("token_type_hint", "refresh_token");
}
params.putAll(customParams);
httpRequest.setQuery(URLUtils.serializeParameters(params));
if (getClientAuthentication() != null)
getClientAuthentication().applyTo(httpRequest);
if (clientAuthz != null)
httpRequest.setAuthorization(clientAuthz.toAuthorizationHeader());
return httpRequest;
}
/**
* Parses a token introspection request from the specified HTTP
* request.
*
* @param httpRequest The HTTP request. Must not be {@code null}.
*
* @return The token introspection request.
*
* @throws ParseException If the HTTP request couldn't be parsed to a
* token introspection request.
*/
public static TokenIntrospectionRequest parse(final HTTPRequest httpRequest)
throws ParseException {
// Only HTTP POST accepted
httpRequest.ensureMethod(HTTPRequest.Method.POST);
httpRequest.ensureContentType(CommonContentTypes.APPLICATION_URLENCODED);
Map params = httpRequest.getQueryParameters();
final String tokenValue = params.remove("token");
if (tokenValue == null || tokenValue.isEmpty()) {
throw new ParseException("Missing required token parameter");
}
// Detect the token type
Token token = null;
final String tokenTypeHint = params.remove("token_type_hint");
if (tokenTypeHint == null) {
// Can be both access or refresh token
token = new Token() {
@Override
public String getValue() {
return tokenValue;
}
@Override
public Set getParameterNames() {
return Collections.emptySet();
}
@Override
public JSONObject toJSONObject() {
return new JSONObject();
}
@Override
public boolean equals(final Object other) {
return other instanceof Token && other.toString().equals(tokenValue);
}
};
} else if (tokenTypeHint.equals("access_token")) {
token = new TypelessAccessToken(tokenValue);
} else if (tokenTypeHint.equals("refresh_token")) {
token = new RefreshToken(tokenValue);
}
// Important: auth methods mutually exclusive!
// Parse optional client auth
ClientAuthentication clientAuth = ClientAuthentication.parse(httpRequest);
// Parse optional client authz (token)
AccessToken clientAuthz = null;
if (clientAuth == null && httpRequest.getAuthorization() != null) {
clientAuthz = AccessToken.parse(httpRequest.getAuthorization());
}
URI uri;
try {
uri = httpRequest.getURL().toURI();
} catch (URISyntaxException e) {
throw new ParseException(e.getMessage(), e);
}
if (clientAuthz != null) {
return new TokenIntrospectionRequest(uri, clientAuthz, token, params);
} else {
return new TokenIntrospectionRequest(uri, clientAuth, token, params);
}
}
}