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package com.sun.enterprise.admin.common;
import java.io.File;
import java.io.IOException;
import java.io.FileReader;
import java.io.BufferedReader;
import java.util.Hashtable;
import java.util.Enumeration;
/**
* Provides api to read passwords from password conf file.
*/
public final class PasswordConfReader
{
public static final String KEY_STORE_ALIAS = "KeyStore";
public static final String TRUST_STORE_ALIAS = "TrustStore";
public static final String PASSWORD_FILE_PROPERTY =
"com.sun.aas.ssl.passwordfile";
static final String CONFIG = "config";
static final String PASSWORD_CONF = "password.conf";
private static final String INSTANCE_ROOT =
System.getProperty("com.sun.aas.instanceRoot");
private static final String SERVER_NAME_PROPERTY = "com.sun.aas.instanceName";
private static PasswordFile pf;
private static Hashtable entries;
/* Constructs new PasswordConfReader object */
private PasswordConfReader()
{
}
/**
*/
public static String getKeyStorePassword() throws IOException
{
return getPassword(KEY_STORE_ALIAS);
}
/**
*/
public static String getTrustStorePassword() throws IOException
{
return getPassword(TRUST_STORE_ALIAS);
}
/**
*/
public static String getPassword(String alias) throws IOException
{
if (!isInSync()) { sync(); }
return get(alias);
}
public static Enumeration listAliases() throws IOException
{
if (!isInSync()) { sync(); }
return entries.keys();
}
private static boolean isInSync() throws IOException
{
return getPasswordFile().equals(pf);
}
private static void sync() throws IOException
{
synchronized (PasswordConfReader.class)
{
pf = getPasswordFile();
}
loadEntries();
}
private static PasswordFile getPasswordFile() throws IOException
{
final String prop = System.getProperty(PASSWORD_FILE_PROPERTY);
PasswordFile f;
if ((prop != null) && (prop.length() > 0))
{
f = new PasswordFile(prop);
}
else
{
f = new PasswordFile(getDefaultPasswordConf());
}
return f;
}
private static String getDefaultPasswordConf()
{
String defaultConf = null;
if (INSTANCE_ROOT != null)
{
defaultConf = INSTANCE_ROOT + File.separator
+ File.separator + CONFIG + File.separator
+ PASSWORD_CONF;
}
return defaultConf;
}
private static synchronized void loadEntries() throws IOException
{
if (entries == null)
{
entries = new Hashtable();
}
BufferedReader reader = null;
try
{
reader = new BufferedReader(new FileReader(pf.getPath()));
String str;
while ((str = reader.readLine()) != null)
{
int index = str.indexOf(':');
if (index > 0)
{
entries.put(str.substring(0, index),
str.substring(index+1));
}
}
}
finally
{
if (reader != null) { reader.close(); }
}
}
private static synchronized String get(String key) throws IOException
{
final String password = (String)entries.get(key);
if (password == null)
{
throw new IOException("No entry found for " + key);
}
return password;
}
private static final class PasswordFile
{
private String path;
private long lastModified;
private PasswordFile(String path) throws IOException
{
final File f = new File(path).getCanonicalFile();
if (!f.exists())
{
throw new IOException("Password file does not exist. "
+ f.getAbsolutePath());
}
this.path = f.getAbsolutePath();
lastModified = f.lastModified();
}
public String getPath()
{
return path;
}
public boolean equals(Object o)
{
if (o == null) { return false; }
if (o == this) { return true; }
PasswordFile that = (PasswordFile)o;
return (path.equals(that.path) &&
(lastModified == that.lastModified));
}
public String toString()
{
return "Path = " + getPath() + ' ' + "lastModified = " + lastModified;
}
}
}
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