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// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package IceSSL;
class Context
{
Context(String ciphers, String keystore, String password, String keystorePassword, String certs,
String certsPassword, java.security.SecureRandom rand)
throws java.security.GeneralSecurityException
{
java.util.ArrayList cipherList = new java.util.ArrayList();
if(ciphers.length() > 0)
{
String[] expr = ciphers.split("[ \t]+");
for(int i = 0; i < expr.length; ++i)
{
if(expr[i].equals("ALL"))
{
if(i != 0)
{
Ice.PluginInitializationException ex = new Ice.PluginInitializationException();
ex.reason = "IceSSL: `ALL' must be first in cipher list `" + ciphers + "'";
throw ex;
}
_allCiphers = true;
}
else if(expr[i].equals("NONE"))
{
if(i != 0)
{
Ice.PluginInitializationException ex = new Ice.PluginInitializationException();
ex.reason = "IceSSL: `NONE' must be first in cipher list `" + ciphers + "'";
throw ex;
}
_noCiphers = true;
}
else
{
CipherExpression ce = new CipherExpression();
String exp = expr[i];
if(exp.charAt(0) == '!')
{
ce.not = true;
if(exp.length() > 1)
{
exp = exp.substring(1);
}
else
{
Ice.PluginInitializationException ex = new Ice.PluginInitializationException();
ex.reason = "IceSSL: invalid cipher expression `" + exp + "'";
throw ex;
}
}
if(exp.charAt(0) == '(')
{
if(!exp.endsWith(")"))
{
Ice.PluginInitializationException ex = new Ice.PluginInitializationException();
ex.reason = "IceSSL: invalid cipher expression `" + exp + "'";
throw ex;
}
try
{
ce.re = java.util.regex.Pattern.compile(exp.substring(1, exp.length() - 2));
}
catch(java.util.regex.PatternSyntaxException ex)
{
Ice.PluginInitializationException e = new Ice.PluginInitializationException();
e.reason = "IceSSL: invalid cipher expression `" + exp + "'";
e.initCause(ex);
throw e;
}
}
else
{
ce.cipher = exp;
}
cipherList.add(ce);
}
}
_ciphers = new CipherExpression[cipherList.size()];
cipherList.toArray(_ciphers);
}
final String ksType = java.security.KeyStore.getDefaultType();
javax.net.ssl.KeyManager[] keyManagers = null;
if(keystore != null && keystore.length() > 0)
{
_keys = java.security.KeyStore.getInstance(ksType);
try
{
char[] pass = null;
if(keystorePassword != null && keystorePassword.length() > 0)
{
pass = keystorePassword.toCharArray();
}
java.io.BufferedInputStream bis =
new java.io.BufferedInputStream(new java.io.FileInputStream(keystore));
_keys.load(bis, pass);
}
catch(java.io.IOException ex)
{
Ice.PluginInitializationException e = new Ice.PluginInitializationException();
e.reason = "IceSSL: unable to load keystore from `" + keystore + "'";
e.initCause(ex);
throw e;
}
String algorithm = javax.net.ssl.KeyManagerFactory.getDefaultAlgorithm();
javax.net.ssl.KeyManagerFactory kmf = javax.net.ssl.KeyManagerFactory.getInstance(algorithm);
kmf.init(_keys, password.toCharArray());
keyManagers = kmf.getKeyManagers();
}
javax.net.ssl.TrustManager[] trustManagers = null;
if(certs != null && certs.length() > 0)
{
_certs = java.security.KeyStore.getInstance(ksType);
try
{
char[] pass = null;
if(certsPassword != null && certsPassword.length() > 0)
{
pass = certsPassword.toCharArray();
}
java.io.BufferedInputStream bis =
new java.io.BufferedInputStream(new java.io.FileInputStream(certs));
_certs.load(bis, pass);
}
catch(java.io.IOException ex)
{
Ice.PluginInitializationException e = new Ice.PluginInitializationException();
e.reason = "IceSSL: unable to load keystore from `" + certs + "'";
e.initCause(ex);
throw e;
}
String algorithm = javax.net.ssl.TrustManagerFactory.getDefaultAlgorithm();
javax.net.ssl.TrustManagerFactory tmf = javax.net.ssl.TrustManagerFactory.getInstance(algorithm);
tmf.init(_certs);
trustManagers = tmf.getTrustManagers();
}
_ctx = javax.net.ssl.SSLContext.getInstance("SSL");
_ctx.init(keyManagers, trustManagers, rand);
}
javax.net.ssl.SSLContext
sslContext()
{
return _ctx;
}
String[]
filterCiphers(String[] supportedCiphers, String[] defaultCiphers)
{
java.util.LinkedList result = new java.util.LinkedList();
if(_allCiphers)
{
for(int i = 0; i < supportedCiphers.length; ++i)
{
result.add(supportedCiphers[i]);
}
}
else if(!_noCiphers)
{
for(int i = 0; i < defaultCiphers.length; ++i)
{
result.add(defaultCiphers[i]);
}
}
if(_ciphers != null)
{
for(int i = 0; i < _ciphers.length; ++i)
{
CipherExpression ce = (CipherExpression)_ciphers[i];
if(ce.not)
{
java.util.Iterator e = result.iterator();
while(e.hasNext())
{
String cipher = (String)e.next();
if(ce.cipher != null)
{
if(ce.cipher.equals(cipher))
{
e.remove();
}
}
else
{
assert(ce.re != null);
java.util.regex.Matcher m = ce.re.matcher(cipher);
if(m.find())
{
e.remove();
}
}
}
}
else
{
if(ce.cipher != null)
{
result.add(0, ce.cipher);
}
else
{
assert(ce.re != null);
for(int j = 0; j < supportedCiphers.length; ++j)
{
java.util.regex.Matcher m = ce.re.matcher(supportedCiphers[j]);
if(m.find())
{
result.add(0, supportedCiphers[j]);
}
}
}
}
}
}
String[] arr = new String[result.size()];
result.toArray(arr);
return arr;
}
private static class CipherExpression
{
boolean not;
String cipher;
java.util.regex.Pattern re;
}
private CipherExpression[] _ciphers;
private boolean _allCiphers;
private boolean _noCiphers;
private javax.net.ssl.SSLContext _ctx;
private java.security.KeyStore _keys;
private java.security.KeyStore _certs;
}
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