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/*******************************************************************************
* Copyright (c) 2014 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.jaxrs.server.internal.security.oauth2.provider.adapters;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.io.InputSupplier;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import org.apache.cxf.helpers.IOUtils;
import org.apache.cxf.io.CachedOutputStream;
import org.apache.cxf.rs.security.oauth2.common.Client;
import org.apache.cxf.rs.security.oauth2.common.UserSubject;
import org.apache.cxf.rs.security.oauth2.utils.OAuthUtils;
import org.eclipse.osee.framework.jdk.core.type.OseePrincipal;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.jaxrs.server.internal.security.oauth2.provider.ClientProvider;
import org.eclipse.osee.jaxrs.server.internal.security.oauth2.provider.SubjectProvider;
import org.eclipse.osee.jaxrs.server.internal.security.oauth2.provider.endpoints.ClientFormData;
import org.eclipse.osee.jaxrs.server.security.JaxRsOAuthStorage;
import org.eclipse.osee.jaxrs.server.security.OAuthClient;
/**
* @author Roberto E. Escobar
*/
public class ClientProviderImpl implements ClientProvider {
private static final int MAX_LOGOS = 10;
private static final long EVICT_AFTER_30_MINS = 30L * 60L * 1000L;
private final LoadingCache<String, CachedOutputStream> logosCache;
private final SubjectProvider subjectProvider;
private final JaxRsOAuthStorage storage;
public ClientProviderImpl(SubjectProvider subjectProvider, JaxRsOAuthStorage storage) {
super();
this.subjectProvider = subjectProvider;
this.storage = storage;
this.logosCache = newLogoCache(MAX_LOGOS, EVICT_AFTER_30_MINS);
}
@Override
public long getClientId(Client client) {
long clientUuid = -1;
if (client instanceof ApplicationClient) {
ApplicationClient appClient = (ApplicationClient) client;
clientUuid = appClient.getClientUuid();
} else {
String clientKey = client.getClientId();
clientUuid = storage.getClientUuidByKey(clientKey);
}
return clientUuid;
}
@Override
public Client getClient(String clientId) {
OAuthClient data = storage.getClientByClientKey(clientId);
ApplicationClient client = null;
if (data != null) {
UserSubject subject = subjectProvider.getSubjectById(data.getSubjectId());
client = new ApplicationClient(data.getClientUuid(), data.getSubjectId(), data.getGuid());
client.setSubject(subject);
client.setApplicationName(data.getApplicationName());
client.setApplicationDescription(data.getApplicationDescription());
client.setApplicationWebUri(data.getApplicationWebUri());
client.setProperties(data.getProperties());
client.setConfidential(data.isConfidential());
client.setClientId(data.getClientId());
client.setClientSecret(data.getClientSecret());
client.setRegisteredAudiences(data.getRegisteredAudiences());
client.setAllowedGrantTypes(data.getAllowedGrantTypes());
client.setRegisteredScopes(data.getRegisteredScopes());
client.setRedirectUris(data.getRedirectUris());
client.setApplicationCertificates(data.getApplicationCertificates());
client.setApplicationLogoUri(data.getApplicationLogoUri());
client.setApplicationLogoSupplier(data.getApplicationLogoSupplier());
}
return client;
}
@Override
public Client createClient(UriInfo uriInfo, OseePrincipal principal, final ClientFormData data) {
String guid = data.getGuid();
long clientUuid = Lib.generateUuid();
long subjectId = subjectProvider.getSubjectId(data.getUserSubject());
ApplicationClient client = new ApplicationClient(clientUuid, subjectId, guid);
client.setSubject(data.getUserSubject());
client.setApplicationName(data.getName());
client.setApplicationDescription(data.getDescription());
client.setApplicationWebUri(data.getWebUri());
client.setProperties(data.getProperties());
client.setConfidential(data.isConfidential());
/**
* generate credentials
*/
String clientId = OAuthUtils.generateRandomTokenKey();
client.setClientId(clientId);
if (client.isConfidential()) {
String clientSecret = OAuthUtils.generateRandomTokenKey();
client.setClientSecret(clientSecret);
}
/**
* <pre>
* Additional Security options:
* - restrict resource server
* - restrict allowed grant types
* - register allowed scopes/permissions
* - restrict redirect/callback URIs
* - authenticate using certificate
* </pre>
*/
client.setRegisteredAudiences(data.getAllowedAudiences());
client.setAllowedGrantTypes(data.getAllowedGrantTypes());
client.setRegisteredScopes(data.getAllowedScopes());
client.setRedirectUris(data.getRedirectUris());
client.setApplicationCertificates(data.getCertificates());
client.setApplicationLogoUri(data.getLogoUri());
if (data.isLogoAvailable()) {
InputSupplier<InputStream> logoSupplier = new InputSupplier<InputStream>() {
@Override
public InputStream getInput() {
return data.getLogoContent();
}
};
client.setApplicationLogoSupplier(logoSupplier);
}
storage.storeClient(principal, client);
return client;
}
@Override
public URI getClientLogoUri(UriInfo uriInfo, Client client) {
String clientGuid;
if (client instanceof ApplicationClient) {
ApplicationClient appClient = (ApplicationClient) client;
clientGuid = appClient.getGuid();
} else {
OAuthClient authClient = storage.getClientByClientKey(client.getClientId());
clientGuid = authClient.getGuid();
}
return UriBuilder.fromUri(uriInfo.getBaseUri()).path("client").path("{client-guid}").path("logo").build(
clientGuid);
}
@Override
public InputSupplier<InputStream> getClientLogoSupplier(UriInfo uriInfo, String applicationGuid) {
OAuthClient client = storage.getClientByClientGuid(applicationGuid);
InputSupplier<InputStream> supplier = null;
if (client.hasApplicationLogoSupplier()) {
supplier = client.getApplicationLogoSupplier();
} else {
String logoUri = client.getApplicationLogoUri();
if (Strings.isValid(logoUri)) {
supplier = newSupplier(logoUri);
} else {
// provide default image if available;
}
}
return supplier;
}
private InputSupplier<InputStream> newSupplier(final String uri) {
return new InputSupplier<InputStream>() {
@Override
public InputStream getInput() throws IOException {
CachedOutputStream cos;
try {
cos = logosCache.get(uri);
} catch (ExecutionException ex) {
throw new IOException(ex);
}
return cos.getInputStream();
}
};
}
private static LoadingCache<String, CachedOutputStream> newLogoCache(int cacheMaxSize, long cacheEvictTimeoutMillis) {
return newCache(new CacheLoader<String, CachedOutputStream>() {
@Override
public CachedOutputStream load(String uri) throws Exception {
CachedOutputStream cos = new CachedOutputStream();
InputStream inputStream = null;
try {
URL url = new URL(uri);
inputStream = new BufferedInputStream(url.openStream());
IOUtils.copy(inputStream, cos);
} finally {
Lib.close(inputStream);
}
return cos;
}
}, cacheMaxSize, cacheEvictTimeoutMillis);
}
private static <K, V> LoadingCache<K, V> newCache(CacheLoader<K, V> loader, int cacheMaxSize, long cacheEvictTimeoutMillis) {
return CacheBuilder.newBuilder()//
.maximumSize(cacheMaxSize)//
.expireAfterWrite(cacheEvictTimeoutMillis, TimeUnit.MILLISECONDS)//
.build(loader);
}
}
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