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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;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import net.jcip.annotations.Immutable;
import org.apache.commons.lang3.StringUtils;
import com.nimbusds.oauth2.sdk.id.State;
import com.nimbusds.oauth2.sdk.http.HTTPRequest;
import com.nimbusds.oauth2.sdk.http.HTTPResponse;
import com.nimbusds.oauth2.sdk.util.URIUtils;
import com.nimbusds.oauth2.sdk.util.URLUtils;
/**
* Authorisation error response. Intended only for errors which are allowed to
* be communicated back to the requesting OAuth 2.0 client, such as
* {@code access_denied}. For a complete list see OAuth 2.0 (RFC 6749),
* sections 4.1.2.1 and 4.2.2.1.
*
* If the authorisation request fails due to a missing, invalid, or
* mismatching {@code redirect_uri}, or if the {@code client_id} is missing or
* invalid, a response must not be sent back to the requesting
* client. Instead, the authorisation server should simply display the error
* to the resource owner.
*
*
Standard authorisation errors:
*
*
* - {@link OAuth2Error#INVALID_REQUEST}
*
- {@link OAuth2Error#UNAUTHORIZED_CLIENT}
*
- {@link OAuth2Error#ACCESS_DENIED}
*
- {@link OAuth2Error#UNSUPPORTED_RESPONSE_TYPE}
*
- {@link OAuth2Error#INVALID_SCOPE}
*
- {@link OAuth2Error#SERVER_ERROR}
*
- {@link OAuth2Error#TEMPORARILY_UNAVAILABLE}
*
*
* Example HTTP response:
*
*
* HTTP/1.1 302 Found
* Location: https://client.example.com/cb?
* error=invalid_request
* &error_description=the%20request%20is%20not%20valid%20or%20malformed
* &state=af0ifjsldkj
*
*
* Related specifications:
*
*
* - OAuth 2.0 (RFC 6749), sections 4.1.2.1 and 4.2.2.1.
*
- OAuth 2.0 Multiple Response Type Encoding Practices 1.0.
*
- OAuth 2.0 Form Post Response Mode 1.0.
*
*/
@Immutable
public class AuthorizationErrorResponse
extends AuthorizationResponse
implements ErrorResponse {
/**
* The standard OAuth 2.0 errors for an Authorisation error response.
*/
private static final Set stdErrors = new HashSet<>();
static {
stdErrors.add(OAuth2Error.INVALID_REQUEST);
stdErrors.add(OAuth2Error.UNAUTHORIZED_CLIENT);
stdErrors.add(OAuth2Error.ACCESS_DENIED);
stdErrors.add(OAuth2Error.UNSUPPORTED_RESPONSE_TYPE);
stdErrors.add(OAuth2Error.INVALID_SCOPE);
stdErrors.add(OAuth2Error.SERVER_ERROR);
stdErrors.add(OAuth2Error.TEMPORARILY_UNAVAILABLE);
}
/**
* Gets the standard OAuth 2.0 errors for an Authorisation error
* response.
*
* @return The standard errors, as a read-only set.
*/
public static Set getStandardErrors() {
return Collections.unmodifiableSet(stdErrors);
}
/**
* The error.
*/
private final ErrorObject error;
/**
* Creates a new authorisation error response.
*
* @param redirectURI The base redirection URI. Must not be
* {@code null}.
* @param error The error. Should match one of the
* {@link #getStandardErrors standard errors} for an
* authorisation error response. Must not be
* {@code null}.
* @param state The state, {@code null} if not requested.
* @param rm The implied response mode, {@code null} if
* unknown.
*/
public AuthorizationErrorResponse(final URI redirectURI,
final ErrorObject error,
final State state,
final ResponseMode rm) {
super(redirectURI, state, rm);
if (error == null)
throw new IllegalArgumentException("The error must not be null");
this.error = error;
}
@Override
public boolean indicatesSuccess() {
return false;
}
@Override
public ErrorObject getErrorObject() {
return error;
}
@Override
public ResponseMode impliedResponseMode() {
// Return "query" if not known, assumed the most frequent case
return getResponseMode() != null ? getResponseMode() : ResponseMode.QUERY;
}
@Override
public Map toParameters() {
Map params = new HashMap<>();
params.put("error", error.getCode());
if (error.getDescription() != null)
params.put("error_description", error.getDescription());
if (error.getURI() != null)
params.put("error_uri", error.getURI().toString());
if (getState() != null)
params.put("state", getState().getValue());
return params;
}
/**
* Parses an authorisation error response.
*
* @param redirectURI The base redirection URI. Must not be
* {@code null}.
* @param params The response parameters to parse. Must not be
* {@code null}.
*
* @return The authorisation error response.
*
* @throws ParseException If the parameters couldn't be parsed to an
* authorisation error response.
*/
public static AuthorizationErrorResponse parse(final URI redirectURI,
final Map params)
throws ParseException {
// Parse the error
if (StringUtils.isBlank(params.get("error")))
throw new ParseException("Missing error code");
// Parse error code
String errorCode = params.get("error");
String errorDescription = params.get("error_description");
String errorURIString = params.get("error_uri");
URI errorURI = null;
if (errorURIString != null) {
try {
errorURI = new URI(errorURIString);
} catch (URISyntaxException e) {
throw new ParseException("Invalid error URI: " + errorURIString, e);
}
}
ErrorObject error = new ErrorObject(errorCode, errorDescription, HTTPResponse.SC_FOUND, errorURI);
// State
State state = State.parse(params.get("state"));
return new AuthorizationErrorResponse(redirectURI, error, state, null);
}
/**
* Parses an authorisation error response.
*
* Use a relative URI if the host, port and path details are not
* known:
*
*
* URI relUrl = new URI("https:///?error=invalid_request");
*
*
* Example URI:
*
*
* https://client.example.com/cb?
* error=invalid_request
* &error_description=the%20request%20is%20not%20valid%20or%20malformed
* &state=af0ifjsldkj
*
*
* @param uri The URI to parse. Can be absolute or relative, with a
* fragment or query string containing the authorisation
* response parameters. Must not be {@code null}.
*
* @return The authorisation error response.
*
* @throws ParseException If the URI couldn't be parsed to an
* authorisation error response.
*/
public static AuthorizationErrorResponse parse(final URI uri)
throws ParseException {
Map params;
if (uri.getRawFragment() != null) {
params = URLUtils.parseParameters(uri.getRawFragment());
} else if (uri.getRawQuery() != null) {
params = URLUtils.parseParameters(uri.getRawQuery());
} else {
throw new ParseException("Missing URI fragment or query string");
}
return parse(URIUtils.getBaseURI(uri), params);
}
/**
* Parses an authorisation error response from the specified initial
* HTTP 302 redirect response generated at the authorisation endpoint.
*
* Example HTTP response:
*
*
* HTTP/1.1 302 Found
* Location: https://client.example.com/cb?error=invalid_request&state=af0ifjsldkj
*
*
* @see #parse(HTTPRequest)
*
* @param httpResponse The HTTP response to parse. Must not be
* {@code null}.
*
* @return The authorisation error response.
*
* @throws ParseException If the HTTP response couldn't be parsed to an
* authorisation error response.
*/
public static AuthorizationErrorResponse parse(final HTTPResponse httpResponse)
throws ParseException {
URI location = httpResponse.getLocation();
if (location == null) {
throw new ParseException("Missing redirection URL / HTTP Location header");
}
return parse(location);
}
/**
* Parses an authorisation error response from the specified HTTP
* request at the client redirection (callback) URI. Applies to
* {@code query}, {@code fragment} and {@code form_post} response
* modes.
*
* Example HTTP request (authorisation success):
*
*
* GET /cb?error=invalid_request&state=af0ifjsldkj HTTP/1.1
* Host: client.example.com
*
*
* @see #parse(HTTPResponse)
*
* @param httpRequest The HTTP request to parse. Must not be
* {@code null}.
*
* @throws ParseException If the HTTP request couldn't be parsed to an
* authorisation error response.
*/
public static AuthorizationErrorResponse parse(final HTTPRequest httpRequest)
throws ParseException {
final URI baseURI;
try {
baseURI = httpRequest.getURL().toURI();
} catch (URISyntaxException e) {
throw new ParseException(e.getMessage(), e);
}
if (httpRequest.getQuery() != null) {
// For query string and form_post response mode
return parse(baseURI, URLUtils.parseParameters(httpRequest.getQuery()));
} else if (httpRequest.getFragment() != null) {
// For fragment response mode (never available in actual HTTP request from browser)
return parse(baseURI, URLUtils.parseParameters(httpRequest.getFragment()));
} else {
throw new ParseException("Missing URI fragment, query string or post body");
}
}
}