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OAuth 2.0 SDK with OpenID Connection extensions for developing client
and server applications.
/*
* oauth2-oidc-sdk
*
* Copyright 2012-2016, Connect2id Ltd and contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package com.nimbusds.oauth2.sdk.token;
import java.net.URI;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.jcip.annotations.Immutable;
import com.nimbusds.jose.JWSAlgorithm;
import com.nimbusds.oauth2.sdk.ParseException;
import com.nimbusds.oauth2.sdk.Scope;
import com.nimbusds.oauth2.sdk.http.HTTPResponse;
import com.nimbusds.oauth2.sdk.util.CollectionUtils;
/**
* OAuth 2.0 DPoP token error. Used to indicate that access to a resource
* protected by a DPoP access token is denied, due to the request, token or
* DPoP proof being invalid, or due to the access token having insufficient
* scope.
*
* Standard DPoP access token errors:
*
*
* - {@link #MISSING_TOKEN}
*
- {@link #INVALID_REQUEST}
*
- {@link #INVALID_TOKEN}
*
- {@link #INSUFFICIENT_SCOPE}
*
- {@link #USE_DPOP_NONCE}
*
*
* Example HTTP response:
*
*
* HTTP/1.1 401 Unauthorized
* WWW-Authenticate: DPoP realm="example.com",
* error="invalid_token",
* error_description="The access token expired"
*
*
* Related specifications:
*
*
* - OAuth 2.0 Demonstrating Proof-of-Possession at the Application Layer
* (DPoP) (draft-ietf-oauth-dpop-11), section 7.1.
*
- Hypertext Transfer Protocol (HTTP/1.1): Authentication (RFC 7235),
* section 4.1.
*
*/
@Immutable
public class DPoPTokenError extends TokenSchemeError {
private static final long serialVersionUID = 7399517620661603486L;
/**
* Regex pattern for matching the JWS algorithms parameter of a
* WWW-Authenticate header.
*/
static final Pattern ALGS_PATTERN = Pattern.compile("algs=\"([^\"]+)");
/**
* The request does not contain an access token. No error code or
* description is specified for this error, just the HTTP status code
* is set to 401 (Unauthorized).
*
* Example:
*
*
* HTTP/1.1 401 Unauthorized
* WWW-Authenticate: DPoP
*
*/
public static final DPoPTokenError MISSING_TOKEN =
new DPoPTokenError(null, null, HTTPResponse.SC_UNAUTHORIZED);
/**
* The request is missing a required parameter, includes an unsupported
* parameter or parameter value, repeats the same parameter, uses more
* than one method for including an access token, or is otherwise
* malformed. The HTTP status code is set to 400 (Bad Request).
*/
public static final DPoPTokenError INVALID_REQUEST =
new DPoPTokenError("invalid_request", "Invalid request",
HTTPResponse.SC_BAD_REQUEST);
/**
* The access token provided is expired, revoked, malformed, or invalid
* for other reasons. The HTTP status code is set to 401
* (Unauthorized).
*/
public static final DPoPTokenError INVALID_TOKEN =
new DPoPTokenError("invalid_token", "Invalid access token",
HTTPResponse.SC_UNAUTHORIZED);
/**
* The request requires higher privileges than provided by the access
* token. The HTTP status code is set to 403 (Forbidden).
*/
public static final DPoPTokenError INSUFFICIENT_SCOPE =
new DPoPTokenError("insufficient_scope", "Insufficient scope",
HTTPResponse.SC_FORBIDDEN);
/**
* The request has a DPoP proof that is invalid. The HTTP status code
* is set to 401 (Unauthorized).
*/
public static final DPoPTokenError INVALID_DPOP_PROOF =
new DPoPTokenError("invalid_dpop_proof", "Invalid DPoP proof",
HTTPResponse.SC_UNAUTHORIZED);
/**
* The request is missing a required DPoP nonce. The HTTP status code
* is set to 401 (Unauthorized).
*/
public static final DPoPTokenError USE_DPOP_NONCE =
new DPoPTokenError("use_dpop_nonce", "Use of DPoP nonce required",
HTTPResponse.SC_UNAUTHORIZED);
/**
* The acceptable JWS algorithms, {@code null} if not specified.
*/
private final Set jwsAlgs;
/**
* Creates a new OAuth 2.0 DPoP token error with the specified code
* and description.
*
* @param code The error code, {@code null} if not specified.
* @param description The error description, {@code null} if not
* specified.
*/
public DPoPTokenError(final String code, final String description) {
this(code, description, 0, null, null, null);
}
/**
* Creates a new OAuth 2.0 DPoP token error with the specified code,
* description and HTTP status code.
*
* @param code The error code, {@code null} if not specified.
* @param description The error description, {@code null} if not
* specified.
* @param httpStatusCode The HTTP status code, zero if not specified.
*/
public DPoPTokenError(final String code, final String description, final int httpStatusCode) {
this(code, description, httpStatusCode, null, null, null);
}
/**
* Creates a new OAuth 2.0 DPoP token error with the specified code,
* description, HTTP status code, page URI, realm and scope.
*
* @param code The error code, {@code null} if not specified.
* @param description The error description, {@code null} if not
* specified.
* @param httpStatusCode The HTTP status code, zero if not specified.
* @param uri The error page URI, {@code null} if not
* specified.
* @param realm The realm, {@code null} if not specified.
* @param scope The required scope, {@code null} if not
* specified.
*/
public DPoPTokenError(final String code,
final String description,
final int httpStatusCode,
final URI uri,
final String realm,
final Scope scope) {
this(code, description, httpStatusCode, uri, realm, scope, null);
}
/**
* Creates a new OAuth 2.0 DPoP token error with the specified code,
* description, HTTP status code, page URI, realm and scope.
*
* @param code The error code, {@code null} if not specified.
* @param description The error description, {@code null} if not
* specified.
* @param httpStatusCode The HTTP status code, zero if not specified.
* @param uri The error page URI, {@code null} if not
* specified.
* @param realm The realm, {@code null} if not specified.
* @param scope The required scope, {@code null} if not
* specified.
* @param jwsAlgs The acceptable JWS algorithms, {@code null} if
* not specified.
*/
public DPoPTokenError(final String code,
final String description,
final int httpStatusCode,
final URI uri,
final String realm,
final Scope scope,
final Set jwsAlgs) {
super(AccessTokenType.DPOP, code, description, httpStatusCode, uri, realm, scope);
this.jwsAlgs = jwsAlgs;
}
@Override
public DPoPTokenError setDescription(final String description) {
return new DPoPTokenError(
getCode(),
description,
getHTTPStatusCode(),
getURI(),
getRealm(),
getScope(),
getJWSAlgorithms()
);
}
@Override
public DPoPTokenError appendDescription(final String text) {
String newDescription;
if (getDescription() != null)
newDescription = getDescription() + text;
else
newDescription = text;
return new DPoPTokenError(
getCode(),
newDescription,
getHTTPStatusCode(),
getURI(),
getRealm(),
getScope(),
getJWSAlgorithms()
);
}
@Override
public DPoPTokenError setHTTPStatusCode(final int httpStatusCode) {
return new DPoPTokenError(
getCode(),
getDescription(),
httpStatusCode,
getURI(),
getRealm(),
getScope(),
getJWSAlgorithms()
);
}
@Override
public DPoPTokenError setURI(final URI uri) {
return new DPoPTokenError(
getCode(),
getDescription(),
getHTTPStatusCode(),
uri,
getRealm(),
getScope(),
getJWSAlgorithms()
);
}
@Override
public DPoPTokenError setRealm(final String realm) {
return new DPoPTokenError(
getCode(),
getDescription(),
getHTTPStatusCode(),
getURI(),
realm,
getScope(),
getJWSAlgorithms()
);
}
@Override
public DPoPTokenError setScope(final Scope scope) {
return new DPoPTokenError(
getCode(),
getDescription(),
getHTTPStatusCode(),
getURI(),
getRealm(),
scope,
getJWSAlgorithms()
);
}
/**
* Returns the acceptable JWS algorithms.
*
* @return The acceptable JWS algorithms, {@code null} if not
* specified.
*/
public Set getJWSAlgorithms() {
return jwsAlgs;
}
/**
* Sets the acceptable JWS algorithms.
*
* @param jwsAlgs The acceptable JWS algorithms, {@code null} if not
* specified.
*
* @return A copy of this error with the specified acceptable JWS
* algorithms.
*/
public DPoPTokenError setJWSAlgorithms(final Set jwsAlgs) {
return new DPoPTokenError(
getCode(),
getDescription(),
getHTTPStatusCode(),
getURI(),
getRealm(),
getScope(),
jwsAlgs
);
}
/**
* Returns the {@code WWW-Authenticate} HTTP response header code for
* this DPoP access token error response.
*
* Example:
*
*
* DPoP realm="example.com", error="invalid_token", error_description="Invalid access token"
*
*
* @return The {@code Www-Authenticate} header value.
*/
@Override
public String toWWWAuthenticateHeader() {
String header = super.toWWWAuthenticateHeader();
if (CollectionUtils.isEmpty(getJWSAlgorithms())) {
return header;
}
StringBuilder sb = new StringBuilder(header);
if (header.contains("=")) {
sb.append(',');
}
sb.append(" algs=\"");
String delim = "";
for (JWSAlgorithm alg: getJWSAlgorithms()) {
sb.append(delim);
delim = " ";
sb.append(alg.getName());
}
sb.append("\"");
return sb.toString();
}
/**
* Parses an OAuth 2.0 DPoP token error from the specified HTTP
* response {@code WWW-Authenticate} header.
*
* @param wwwAuth The {@code WWW-Authenticate} header value to parse.
* Must not be {@code null}.
*
* @return The DPoP token error.
*
* @throws ParseException If the {@code WWW-Authenticate} header value
* couldn't be parsed to a DPoP token error.
*/
public static DPoPTokenError parse(final String wwwAuth)
throws ParseException {
TokenSchemeError genericError = TokenSchemeError.parse(wwwAuth, AccessTokenType.DPOP);
Set jwsAlgs = null;
Matcher m = ALGS_PATTERN.matcher(wwwAuth);
if (m.find()) {
String algsString = m.group(1);
jwsAlgs = new HashSet<>();
for (String algName: algsString.split("\\s+")) {
jwsAlgs.add(JWSAlgorithm.parse(algName));
}
}
return new DPoPTokenError(
genericError.getCode(),
genericError.getDescription(),
genericError.getHTTPStatusCode(),
genericError.getURI(),
genericError.getRealm(),
genericError.getScope(),
jwsAlgs
);
}
}