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package com.netscape.cms.tomcat;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;
import org.apache.commons.lang.StringUtils;
import com.redhat.nuxwdog.WatchdogClient;
public class NuxwdogPasswordStore implements org.apache.tomcat.util.net.jss.IPasswordStore {
// Note: pwCache is a temporary construct needed because nuxwdog currently
// does not expose a putPassword() method. When this is added, pwCache will
// no longer be needed.
private Hashtable<String, String> pwCache = null;
private ArrayList<String> tags = null;
private final String PROMPT_PREFIX = "Please provide the password for ";
private String instanceId;
@Override
public void init(String confFile) throws IOException {
if (!startedByNuxwdog()) {
throw new IOException("process not started by nuxwdog");
}
tags = new ArrayList<String>();
if (confFile != null) {
populateTokenTags(confFile);
}
pwCache = new Hashtable<String, String>();
}
private boolean startedByNuxwdog() {
// confirm that process was started by nuxwdog
String wdPipeName = System.getenv("WD_PIPE_NAME");
if (StringUtils.isNotEmpty(wdPipeName)) {
return true;
}
return false;
}
private void populateTokenTags(String confFile) throws IOException {
Properties props = new Properties();
InputStream in = new FileInputStream(confFile);
props.load(in);
tags.add("internal");
String tokenList = props.getProperty("cms.tokenList");
if (StringUtils.isNotEmpty(tokenList)) {
for (String token: StringUtils.split(tokenList,',')) {
tags.add("hardware-" + token);
}
}
instanceId = props.getProperty("instanceId");
}
private void addTag(String tag) {
if (!tags.contains(tag)) {
tags.add(tag);
}
}
public String getPassword(String tag, int iteration) {
if (pwCache.containsKey(tag)) {
return pwCache.get(tag);
}
String prompt = PROMPT_PREFIX + tag + ":";
if (StringUtils.isNotEmpty(instanceId)) {
prompt = "[" + instanceId + "] " + prompt;
}
String pwd = WatchdogClient.getPassword(prompt, iteration);
if (pwd != null) {
addTag(tag);
}
return pwd;
}
@Override
public String getPassword(String tag){
return getPassword(tag, 0);
}
@Override
public Enumeration<String> getTags() {
return Collections.enumeration(tags);
}
@Override
public Object putPassword(String tag, String password) {
addTag(tag);
return pwCache.put(tag, password);
}
@Override
public void commit() throws IOException, ClassCastException, NullPointerException {
// Nothing required here
}
}
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