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Camunda 7 Keycloak Identity Provider Plugin including all transitive dependencies
/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* Instances of this class are thread safe as of version 4.4.
*
*
* @since 4.1
*/
@Contract(threading = ThreadingBehavior.SAFE_CONDITIONAL)
public class BasicAuthCache implements AuthCache {
private static final Logger LOG = LoggerFactory.getLogger(BasicAuthCache.class);
static class Key {
final String scheme;
final String host;
final int port;
final String pathPrefix;
Key(final String scheme, final String host, final int port, final String pathPrefix) {
Args.notBlank(scheme, "Scheme");
Args.notBlank(host, "Scheme");
this.scheme = scheme.toLowerCase(Locale.ROOT);
this.host = host.toLowerCase(Locale.ROOT);
this.port = port;
this.pathPrefix = pathPrefix;
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof Key) {
final Key that = (Key) obj;
return this.scheme.equals(that.scheme) &&
this.host.equals(that.host) &&
this.port == that.port &&
Objects.equals(this.pathPrefix, that.pathPrefix);
}
return false;
}
@Override
public int hashCode() {
int hash = LangUtils.HASH_SEED;
hash = LangUtils.hashCode(hash, this.scheme);
hash = LangUtils.hashCode(hash, this.host);
hash = LangUtils.hashCode(hash, this.port);
hash = LangUtils.hashCode(hash, this.pathPrefix);
return hash;
}
@Override
public String toString() {
final StringBuilder buf = new StringBuilder();
buf.append(scheme).append("://").append(host);
if (port >= 0) {
buf.append(":").append(port);
}
if (pathPrefix != null) {
if (!pathPrefix.startsWith("/")) {
buf.append("/");
}
buf.append(pathPrefix);
}
return buf.toString();
}
}
private final Map map;
private final SchemePortResolver schemePortResolver;
/**
* Default constructor.
*
* @since 4.3
*/
public BasicAuthCache(final SchemePortResolver schemePortResolver) {
super();
this.map = new ConcurrentHashMap<>();
this.schemePortResolver = schemePortResolver != null ? schemePortResolver : DefaultSchemePortResolver.INSTANCE;
}
public BasicAuthCache() {
this(null);
}
private Key key(final String scheme, final NamedEndpoint authority, final String pathPrefix) {
return new Key(scheme, authority.getHostName(), schemePortResolver.resolve(scheme, authority), pathPrefix);
}
@Override
public void put(final HttpHost host, final AuthScheme authScheme) {
put(host, null, authScheme);
}
@Override
public AuthScheme get(final HttpHost host) {
return get(host, null);
}
@Override
public void remove(final HttpHost host) {
remove(host, null);
}
@Override
public void put(final HttpHost host, final String pathPrefix, final AuthScheme authScheme) {
Args.notNull(host, "HTTP host");
if (authScheme == null) {
return;
}
if (authScheme instanceof Serializable) {
try {
final ByteArrayOutputStream buf = new ByteArrayOutputStream();
try (final ObjectOutputStream out = new ObjectOutputStream(buf)) {
out.writeObject(authScheme);
}
this.map.put(key(host.getSchemeName(), host, pathPrefix), buf.toByteArray());
} catch (final IOException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Unexpected I/O error while serializing auth scheme", ex);
}
}
} else {
if (LOG.isDebugEnabled()) {
LOG.debug("Auth scheme {} is not serializable", authScheme.getClass());
}
}
}
@Override
public AuthScheme get(final HttpHost host, final String pathPrefix) {
Args.notNull(host, "HTTP host");
final byte[] bytes = this.map.get(key(host.getSchemeName(), host, pathPrefix));
if (bytes != null) {
try {
final ByteArrayInputStream buf = new ByteArrayInputStream(bytes);
try (final ObjectInputStream in = new ObjectInputStream(buf)) {
return (AuthScheme) in.readObject();
}
} catch (final IOException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Unexpected I/O error while de-serializing auth scheme", ex);
}
} catch (final ClassNotFoundException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Unexpected error while de-serializing auth scheme", ex);
}
}
}
return null;
}
@Override
public void remove(final HttpHost host, final String pathPrefix) {
Args.notNull(host, "HTTP host");
this.map.remove(key(host.getSchemeName(), host, pathPrefix));
}
@Override
public void clear() {
this.map.clear();
}
@Override
public String toString() {
return this.map.toString();
}
}