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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. 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.
* ============LICENSE_END============================================
* ===================================================================
*
*/
package org.onap.clamp.clds.filter;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.nio.file.StandardCopyOption;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.onap.aaf.cadi.config.Config;
import org.onap.aaf.cadi.filter.CadiFilter;
import org.onap.clamp.clds.util.ResourceFileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.ApplicationContext;
public class ClampCadiFilter extends CadiFilter {
private static final EELFLogger logger = EELFManager.getInstance().getLogger(ClampCadiFilter.class);
@Autowired
private ApplicationContext appContext;
@Value("${server.ssl.key-store:#{null}}")
private String keyStore;
@Value("${server.ssl.key-store-password:#{null}}")
private String keyStorePass;
@Value("${server.ssl.trust-store:#{null}}")
private String trustStore;
@Value("${server.ssl.trust-store-password:#{null}}")
private String trustStorePass;
@Value("${server.ssl.key-alias:clamp@clamp.onap.org}")
private String alias;
@Value("${clamp.config.keyFile:#{null}}")
private String keyFile;
@Value("${clamp.config.cadi.cadiLoglevel:#{null}}")
private String cadiLoglevel;
@Value("${clamp.config.cadi.cadiLatitude:#{null}}")
private String cadiLatitude;
@Value("${clamp.config.cadi.cadiLongitude:#{null}}")
private String cadiLongitude;
@Value("${clamp.config.cadi.aafLocateUrl:#{null}}")
private String aafLocateUrl;
@Value("${clamp.config.cadi.oauthTokenUrl:#{null}}")
private String oauthTokenUrl;
@Value("${clamp.config.cadi.oauthIntrospectUrl:#{null}}")
private String oauthIntrospectUrl;
@Value("${clamp.config.cadi.aafEnv:#{null}}")
private String aafEnv;
@Value("${clamp.config.cadi.aafUrl:#{null}}")
private String aafUrl;
@Value("${clamp.config.cadi.cadiX509Issuers:#{null}}")
private String cadiX509Issuers;
@Value("${clamp.config.caCerts:#{null}}")
private String caCertsPath;
private void checkIfNullProperty(String key, String value) {
/*
* When value is null, so not defined in application.properties set nothing in
* System properties
*/
if (value != null) {
/*
* Ensure that any properties already defined in System.prop by JVM params won't
* be overwritten by Spring application.properties values
*/
System.setProperty(key, System.getProperty(key, value));
}
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// set some properties in System so that Cadi filter will find its config
// The JVM values set will always overwrite the Spring ones.
checkIfNullProperty(Config.CADI_KEYFILE, convertSpringToPath(keyFile));
checkIfNullProperty(Config.CADI_LOGLEVEL, cadiLoglevel);
checkIfNullProperty(Config.CADI_LATITUDE, cadiLatitude);
checkIfNullProperty(Config.CADI_LONGITUDE, cadiLongitude);
checkIfNullProperty(Config.AAF_LOCATE_URL, aafLocateUrl);
checkIfNullProperty(Config.AAF_OAUTH2_TOKEN_URL, oauthTokenUrl);
checkIfNullProperty(Config.AAF_OAUTH2_INTROSPECT_URL, oauthIntrospectUrl);
checkIfNullProperty(Config.AAF_ENV, aafEnv);
checkIfNullProperty(Config.AAF_URL, aafUrl);
checkIfNullProperty(Config.CADI_X509_ISSUERS, cadiX509Issuers);
checkIfNullProperty(Config.CADI_KEYSTORE, convertSpringToPath(keyStore));
checkIfNullProperty(Config.CADI_TRUSTSTORE, convertSpringToPath(trustStore));
checkIfNullProperty(Config.CADI_ALIAS, alias);
checkIfNullProperty(Config.CADI_KEYSTORE_PASSWORD, keyStorePass);
checkIfNullProperty(Config.CADI_TRUSTSTORE_PASSWORD, trustStorePass);
super.init(filterConfig);
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
try {
String certHeader = ((HttpServletRequest) request).getHeader("X-SSL-Cert");
if (certHeader != null) {
CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
X509Certificate cert = (X509Certificate) certificateFactory
.generateCertificate(new ByteArrayInputStream(
URLDecoder.decode(certHeader, StandardCharsets.UTF_8.toString()).getBytes()));
X509Certificate caCert = (X509Certificate) certificateFactory
.generateCertificate(new ByteArrayInputStream(
ResourceFileUtils.getResourceAsString(this.caCertsPath).getBytes()));
X509Certificate[] certifArray = ((X509Certificate[]) request
.getAttribute("javax.servlet.request.X509Certificate"));
if (certifArray == null) {
certifArray = new X509Certificate[] { cert, caCert };
request.setAttribute("javax.servlet.request.X509Certificate", certifArray);
} else {
certifArray[0] = cert;
certifArray[1] = caCert;
}
}
} catch (CertificateException e) {
logger.error("Unable to inject the X.509 certificate", e);
}
super.doFilter(request, response, chain);
}
private String convertSpringToPath(String fileName) {
try (InputStream ioFile = appContext.getResource(fileName).getInputStream()) {
if (!fileName.contains("file:")) {
File targetFile = new File(appContext.getResource(fileName).getFilename());
java.nio.file.Files.copy(ioFile, targetFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
return targetFile.getPath();
} else {
return appContext.getResource(fileName).getFile().getPath();
}
} catch (IOException e) {
logger.error("Unable to open and copy the file: " + fileName, e);
return null;
}
}
}
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