net.oauth.signatures.SignedJsonAssertionAudienceChecker Maven / Gradle / Ivy
/**
* Copyright 2010 Google Inc.
*
* 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 net.oauth.signatures;
import com.google.common.base.Preconditions;
import com.google.gson.JsonObject;
import java.net.URI;
import java.security.SignatureException;
import net.oauth.jsontoken.Checker;
import net.oauth.jsontoken.JsonToken;
/**
* Audience checker for signed Json Assertion.
*/
public class SignedJsonAssertionAudienceChecker implements Checker {
// URI that the client is accessing, as seen by the server
private final String tokenEndpointUri;
/**
* Public constructor.
* @param uri the URI against which the signed OAuth token was exercised.
*/
public SignedJsonAssertionAudienceChecker(String uri) {
this.tokenEndpointUri = uri;
}
/**
* @see net.oauth.jsontoken.Checker#check(com.google.gson.JsonObject)
*/
@Override
public void check(JsonObject payload) throws SignatureException {
checkUri(tokenEndpointUri,
Preconditions.checkNotNull(
payload.get(JsonToken.AUDIENCE).getAsString(),
"Audience cannot be null!"));
}
private static void checkUri(String ourUriString, String tokenUriString) throws SignatureException {
URI ourUri = URI.create(ourUriString);
URI tokenUri = URI.create(tokenUriString);
if (!ourUri.getScheme().equalsIgnoreCase(tokenUri.getScheme())) {
throw new SignatureException("scheme in token URI (" + tokenUri.getScheme() + ") is wrong");
}
if (!ourUri.getAuthority().equalsIgnoreCase(tokenUri.getAuthority())) {
throw new SignatureException("authority in token URI (" + tokenUri.getAuthority() + ") is wrong");
}
}
}
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