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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.onap.appc.mdsal.operation;
import org.onap.appc.exceptions.APPCException;
import org.onap.appc.mdsal.impl.Constants;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.codec.binary.Base64;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.Socket;
import java.net.URL;
import java.security.*;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Iterator;
import org.apache.commons.io.IOUtils;
/**
* Provides method to store configuration to MD-SAL store. It also exposes doPut operation which can be used to invoke REST Put operation.
*/
public class ConfigOperation {
private static final EELFLogger LOG = EELFManager.getInstance().getLogger(ConfigOperation.class);
private static URL url;
private static String basicAuth;
ConfigOperation(){}
private static ConfigOperationRequestFormatter requestFormatter = new ConfigOperationRequestFormatter();
private static ObjectMapper mapper = new ObjectMapper();
/**
* This method stores configuration JSON to MD-SAL store. Following input parameters are expected as input
* @param configJson - configuration JSON as String. This value will be stored in MD-SAL store
* @param module - Module name that contains yang Schema
* @param containerName - yang container name which will be used as base container.
* @param subModules - Sub modules list if any. Order of sub module is top to bottom.
* @throws APPCException
*/
public static void storeConfig(String configJson , String module, String containerName, String... subModules ) throws APPCException {
if (configJson == null) {
throw new APPCException("Provided message was null");
}
LOG.debug("Config JSON: " + configJson +"\n"
+"module" + module +"\n"
+"containerName" + containerName +"\n"
+"subModules length : " + subModules.length );
int httpCode;
String respBody ;
try {
String path = requestFormatter.buildPath(url, module, containerName, subModules);
LOG.debug("Configuration Path : " + path);
URL serviceUrl = new URL(url.getProtocol(), url.getHost(), url.getPort(), path);
HttpResponse response = doPut(serviceUrl , configJson);
httpCode = response.getStatusLine().getStatusCode();
respBody = IOUtils.toString(response.getEntity().getContent());
} catch (IOException e) {
LOG.error("Error while storing configuration json "+e.getMessage(), e);
throw new APPCException(e);
}
if (httpCode < 200 || httpCode >= 300 ) {
try {
LOG.debug("Config operation Error response code: " + httpCode);
ArrayList<String> errorMessage = new ArrayList<>();
JsonNode responseJson = toJsonNodeFromJsonString(respBody);
if(responseJson!=null && responseJson.get("errors")!=null) {
JsonNode errors = responseJson.get("errors").get("error");
for (Iterator<JsonNode> i = errors.elements();i.hasNext();){
JsonNode error = i.next();
errorMessage.add(error.get("error-message").textValue());
}
}
throw new APPCException("Failed to load config JSON to MD SAL store. Error code:" + httpCode +" Error Message:" + errorMessage.toString());
} catch (Exception e) {
LOG.error("Error while loading config JSON to MD SAL store. Error code:" + httpCode +" Error Message:" + e.getMessage(), e);
throw new APPCException("Error while loading config JSON to MD SAL store. Error code:" + httpCode +" Error Message:" + e.getMessage(),e);
}
}else{
LOG.debug("Config operation successful. Response code: " + httpCode);
}
}
/**
* This is Generic method that can be used to perform REST Put operation
* @param url - Destination URL for put
* @param body - payload for put action which will be sent as request body.
* @return - HttpResponse object which is returned from put REST call.
* @throws APPCException
*/
public static HttpResponse doPut (URL url, String body) throws APPCException {
HttpPut put;
try {
put = new HttpPut(url.toExternalForm());
put.setHeader(HttpHeaders.CONTENT_TYPE, Constants.OPERATION_APPLICATION_JSON);
put.setHeader(HttpHeaders.ACCEPT, Constants.OPERATION_APPLICATION_JSON);
if (basicAuth != null) {
put.setHeader(HttpHeaders.AUTHORIZATION, "Basic " + basicAuth);
}
StringEntity entity = new StringEntity(body);
entity.setContentType(Constants.OPERATION_APPLICATION_JSON);
put.setEntity(new StringEntity(body));
} catch (UnsupportedEncodingException e) {
throw new APPCException(e);
}
HttpClient client = getHttpClient();
try {
return client.execute(put);
} catch (IOException e) {
throw new APPCException(e);
}
}
/**
* Updates the static var URL and returns the value;
*
* @return The new value of URL
*/
public static String getUrl() {
return url.toExternalForm();
}
public static void setUrl(String newUrl) {
try {
url = new URL(newUrl);
} catch (MalformedURLException e) {
LOG.error("Malformed URL " +newUrl + e.getMessage(), e);
}
}
/**
* Sets the basic authentication header for the given user and password. If either entry is null then set basic auth
* to null
*
* @param user The user with optional domain name (for AAF)
* @param password The password for the user
* @return The new value of the basic auth string that will be used in the request headers
*/
public static String setAuthentication(String user, String password) {
if (user != null && password != null) {
String authStr = user + ":" + password;
basicAuth = new String(Base64.encodeBase64(authStr.getBytes()));
} else {
basicAuth = null;
}
return basicAuth;
}
@SuppressWarnings("deprecation")
private static HttpClient getHttpClient() throws APPCException {
HttpClient client;
if (url.getProtocol().equals(Constants.OPERATION_HTTPS)) {
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
trustStore.load(null, null);
MySSLSocketFactory sf = new MySSLSocketFactory(trustStore);
sf.setHostnameVerifier(MySSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
registry.register(new Scheme(Constants.OPERATION_HTTPS, sf, 443));
registry.register(new Scheme(Constants.OPERATION_HTTPS, sf, 8443));
registry.register(new Scheme("http", sf, 8181));
ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);
client = new DefaultHttpClient(ccm, params);
} catch (Exception e) {
LOG.error("Error creating HTTP Client. Creating default client." , e);
client = new DefaultHttpClient();
}
} else if ("http".equals(url.getProtocol())) {
client = new DefaultHttpClient();
} else {
throw new APPCException(
"The provider.topology.url property is invalid. The url did not start with http[s]");
}
return client;
}
@SuppressWarnings("deprecation")
private static class MySSLSocketFactory extends SSLSocketFactory {
private SSLContext sslContext = SSLContext.getInstance("TLS");
private MySSLSocketFactory(KeyStore truststore) throws NoSuchAlgorithmException, KeyManagementException,
KeyStoreException, UnrecoverableKeyException {
super(truststore);
TrustManager tm = new X509TrustManager() {
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
LOG.debug("Inside checkClientTrusted");
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
LOG.debug("Inside checkServerTrusted");
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[1];
}
};
sslContext.init(null, new TrustManager[]{
tm
}, null);
}
@Override
public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
throws IOException {
return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
}
@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}
}
private static JsonNode toJsonNodeFromJsonString(String jsonStr) {
JsonNode jsonNode = null;
if(jsonStr != null) {
try {
jsonNode = mapper.readTree(jsonStr);
} catch (IOException e) {
LOG.warn(String.format("Could not map %s to jsonNode.", jsonStr), e);
}
}
return jsonNode;
}
}
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