com.palantir.conjure.java.server.jersey.BearerTokenParamConverterProvider Maven / Gradle / Ivy
/*
* (c) Copyright 2017 Palantir Technologies Inc. All rights reserved.
*
* 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.palantir.conjure.java.server.jersey;
import com.palantir.logsafe.DoNotLog;
import com.palantir.logsafe.Preconditions;
import com.palantir.tokens.auth.BearerToken;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.annotation.Nullable;
import javax.ws.rs.CookieParam;
import javax.ws.rs.ext.ParamConverter;
import javax.ws.rs.ext.ParamConverterProvider;
import javax.ws.rs.ext.Provider;
import org.glassfish.jersey.internal.inject.Custom;
// The Custom annotation ensures that our custom param converters are considered first. See ParamConverterFactory.
// This is particularly important for the BearerToken param converter to ensure that we do not fallback to the
// TypeValueOf param converter.
@Custom
@Provider
public final class BearerTokenParamConverterProvider implements ParamConverterProvider {
private static final BearerTokenParamConverter nonNullParamConverter = new BearerTokenParamConverter(false);
private static final BearerTokenParamConverter nullableParamConverter = new BearerTokenParamConverter(true);
@Override
@SuppressWarnings("unchecked")
public ParamConverter getConverter(
final Class rawType, final Type _genericType, final Annotation[] annotations) {
if (BearerToken.class.equals(rawType) && hasAnnotation(annotations, CookieParam.class)) {
return (ParamConverter)
(hasAnnotation(annotations, Nullable.class) ? nullableParamConverter : nonNullParamConverter);
}
return null;
}
public static final class BearerTokenParamConverter implements ParamConverter {
private final boolean nullable;
/**
* This class should not be used directly.
*
* @deprecated Use BearerTokenParamConverterProvider
*/
@Deprecated
public BearerTokenParamConverter() {
this(false);
}
private BearerTokenParamConverter(boolean nullable) {
this.nullable = nullable;
}
@Override
public BearerToken fromString(final String value) {
if (value == null) {
if (nullable) {
return null;
}
throw UnauthorizedException.missingCredentials();
}
try {
return BearerToken.valueOf(value);
} catch (RuntimeException e) {
throw UnauthorizedException.malformedCredentials(e);
}
}
@DoNotLog
@Override
public String toString(final BearerToken value) {
Preconditions.checkArgument(value != null);
return value.toString();
}
}
private static boolean hasAnnotation(Annotation[] annotations, Class extends Annotation> target) {
for (Annotation annotation : annotations) {
if (target.equals(annotation.annotationType())) {
return true;
}
}
return false;
}
}