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/*-
* ============LICENSE_START=======================================================
* openECOMP : APP-C
* ================================================================================
* Copyright (C) 2017 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.openecomp.appc.dg.ssh.impl;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Map;
import org.openecomp.appc.adapter.ssh.SshAdapter;
import org.openecomp.appc.adapter.ssh.SshConnection;
import org.openecomp.appc.adapter.ssh.SshConnectionDetails;
import org.openecomp.appc.dg.ssh.SshService;
import org.openecomp.appc.exceptions.APPCException;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import org.openecomp.sdnc.sli.SvcLogicContext;
public class SshServiceImpl implements SshService {
private static final EELFLogger logger = EELFManager.getInstance().getApplicationLogger();
private static final ObjectMapper mapper = new ObjectMapper();
private SshAdapter sshAdapter;
public void setSshAdapter(SshAdapter sshAdapter) {
this.sshAdapter = sshAdapter;
}
@Override
public void exec(Map<String, String> params, SvcLogicContext ctx) throws APPCException {
SshConnectionDetails connectionDetails = resolveConnectionDetails(params.get(PARAM_IN_connection_details));
String command = params.get(PARAM_IN_command);
logger.debug("=> Connecting to SSH server...");
SshConnection sshConnection = sshAdapter.getConnection(connectionDetails.getHost(), connectionDetails.getPort(), connectionDetails.getUsername(), connectionDetails.getPassword());
sshConnection.connect();
try {
logger.debug("=> Connected to SSH server...");
logger.debug("=> Running SSH command...");
long timeout = DEF_timeout;
String stimeout = params.get(PARAM_IN_timeout);
if ((stimeout != null && !stimeout.isEmpty())) {
timeout = Long.parseLong(stimeout);
}
sshConnection.setExecTimeout(timeout);
ByteArrayOutputStream stdout = new ByteArrayOutputStream();
ByteArrayOutputStream stderr = new ByteArrayOutputStream();
int status = sshConnection.execCommand(command, stdout, stderr);
String stdoutRes = stdout.toString();
String stderrRes = stderr.toString();
logger.debug("=> executed SSH command");
ctx.setAttribute(PARAM_OUT_status, String.format("%01d", status));
ctx.setAttribute(PARAM_OUT_stdout, stdoutRes);
ctx.setAttribute(PARAM_OUT_stderr, stderrRes);
} finally {
sshConnection.disconnect();
}
}
private SshConnectionDetails resolveConnectionDetails(String connectionDetailsStr) throws APPCException {
SshConnectionDetails connectionDetails = null;
try {
connectionDetails = mapper.readValue(connectionDetailsStr, SshConnectionDetails.class);
if (0 == connectionDetails.getPort()) connectionDetails.setPort(DEF_port);
} catch (IOException e) {
throw new APPCException(e);
}
return connectionDetails;
}
@Override
public void execWithStatusCheck(Map<String, String> params, SvcLogicContext ctx) throws APPCException {
exec(params, ctx);
int status = Integer.parseInt(ctx.getAttribute(PARAM_OUT_status));
if(status != DEF_SUCCESS_STATUS) {
StringBuilder errmsg = new StringBuilder();
errmsg.append("SSH command returned error status [").append(status).append(']');
String stderr = ctx.getAttribute(PARAM_OUT_stderr);
if((stderr != null) && !stderr.isEmpty()) {
errmsg.append(". Error: [").append(stderr).append(']');
}
throw new APPCException(errmsg.toString());
}
}
}
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