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/*
* Copyright 2018 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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 org.keycloak.authorization.client.resource;
import java.util.List;
import java.util.concurrent.Callable;
import com.fasterxml.jackson.core.type.TypeReference;
import org.keycloak.authorization.client.representation.ServerConfiguration;
import org.keycloak.authorization.client.util.Http;
import org.keycloak.authorization.client.util.Throwables;
import org.keycloak.authorization.client.util.TokenCallable;
import org.keycloak.representations.idm.authorization.UmaPermissionRepresentation;
import org.keycloak.util.JsonSerialization;
import static org.keycloak.common.util.Encode.encodePathAsIs;
/**
* An entry point for managing user-managed permissions for a particular resource
*
* @author Pedro Igor
*/
public class PolicyResource {
private String resourceId;
private final Http http;
private final ServerConfiguration serverConfiguration;
private final TokenCallable pat;
public PolicyResource(String resourceId, Http http, ServerConfiguration serverConfiguration, TokenCallable pat) {
this.resourceId = resourceId;
this.http = http;
this.serverConfiguration = serverConfiguration;
this.pat = pat;
}
/**
* Creates a new user-managed permission as represented by the given {@code permission}.
*
* @param permission the permission to create
* @return if successful, the permission created
*/
public UmaPermissionRepresentation create(final UmaPermissionRepresentation permission) {
if (permission == null) {
throw new IllegalArgumentException("Permission must not be null");
}
Callable callable = new Callable() {
@Override
public UmaPermissionRepresentation call() throws Exception {
return http.post(serverConfiguration.getPolicyEndpoint() + "/" + encodePathAsIs(resourceId))
.authorizationBearer(pat.call())
.json(JsonSerialization.writeValueAsBytes(permission))
.response().json(UmaPermissionRepresentation.class).execute();
}
};
try {
return callable.call();
} catch (Exception cause) {
return Throwables.retryAndWrapExceptionIfNecessary(callable, pat, "Error creating policy for resource [" + resourceId + "]", cause);
}
}
/**
* Updates an existing user-managed permission
*
* @param permission the permission to update
*/
public void update(final UmaPermissionRepresentation permission) {
if (permission == null) {
throw new IllegalArgumentException("Permission must not be null");
}
if (permission.getId() == null) {
throw new IllegalArgumentException("Permission id must not be null");
}
Callable callable = new Callable() {
@Override
public Void call() throws Exception {
http.put(serverConfiguration.getPolicyEndpoint() + "/"+ encodePathAsIs(permission.getId()))
.authorizationBearer(pat.call())
.json(JsonSerialization.writeValueAsBytes(permission)).execute();
return null;
}
};
try {
callable.call();
} catch (Exception cause) {
Throwables.retryAndWrapExceptionIfNecessary(callable, pat, "Error updating policy for resource [" + resourceId + "]", cause);
}
}
/**
* Deletes an existing user-managed permission
*
* @param id the permission id
*/
public void delete(final String id) {
Callable callable = new Callable() {
@Override
public Void call() {
http.delete(serverConfiguration.getPolicyEndpoint() + "/" + encodePathAsIs(id))
.authorizationBearer(pat.call())
.response().execute();
return null;
}
};
try {
callable.call();
} catch (Exception cause) {
Throwables.retryAndWrapExceptionIfNecessary(callable, pat, "Error updating policy for resource [" + resourceId + "]", cause);
}
}
/**
* Queries the server for permission matching the given parameters.
*
* @param id the permission id
* @param name the name of the permission
* @param scope the scope associated with the permission
* @param firstResult the position of the first resource to retrieve
* @param maxResult the maximum number of resources to retrieve
* @return the permissions matching the given parameters
*/
public List find(final String name,
final String scope,
final Integer firstResult,
final Integer maxResult) {
Callable> callable = new Callable>() {
@Override
public List call() {
return http.>get(serverConfiguration.getPolicyEndpoint())
.authorizationBearer(pat.call())
.param("name", name)
.param("resource", resourceId)
.param("scope", scope)
.param("first", firstResult == null ? null : firstResult.toString())
.param("max", maxResult == null ? null : maxResult.toString())
.response().json(new TypeReference>(){}).execute();
}
};
try {
return callable.call();
} catch (Exception cause) {
return Throwables.retryAndWrapExceptionIfNecessary(callable, pat, "Error querying policies for resource [" + resourceId + "]", cause);
}
}
/**
* Queries the server for a permission with the given {@code id}.
*
* @param id the permission id
* @return the permission with the given id
*/
public UmaPermissionRepresentation findById(final String id) {
if (id == null) {
throw new IllegalArgumentException("Permission id must not be null");
}
Callable callable = new Callable() {
@Override
public UmaPermissionRepresentation call() {
return http.get(serverConfiguration.getPolicyEndpoint() + "/" + encodePathAsIs(id))
.authorizationBearer(pat.call())
.response().json(UmaPermissionRepresentation.class).execute();
}
};
try {
return callable.call();
} catch (Exception cause) {
return Throwables.retryAndWrapExceptionIfNecessary(callable, pat, "Error creating policy for resource [" + resourceId + "]", cause);
}
}
}
