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/**
* $Id: CertAction.java,v 1.3 2006/04/18 11:35:28 cvs Exp $
*/
package java.security.cert;
import java.security.AccessController;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.Security;
import wonka.security.DefaultProvider;
class CertAction implements java.security.PrivilegedAction {
private final static Provider defaultProvider = DefaultProvider.getInstance();
Provider provider;
Object spi;
CertAction(String algorithm, String type) throws CertificateException {
Provider[] p = Security.getProviders();
String propName = type+algorithm;
String aliasName = "Alg.Alias." + propName;
for (int i=0 ; i < p.length ; i++){
provider = p[i];
String classname = provider.getProperty(propName);
if (classname != null){
try {
spi = Class.forName(classname, true, (ClassLoader)AccessController.doPrivileged(this)).newInstance();
return;
}catch(Exception e){}
}
classname = getAliasName(aliasName, type);
if (classname != null){
try {
spi = Class.forName(classname, true, (ClassLoader)AccessController.doPrivileged(this)).newInstance();
return;
}catch(Exception e){}
}
}
throw new CertificateException("couldn't find "+algorithm+" of type "+type);
}
CertAction(String algorithm, String providerName, String type) throws NoSuchAlgorithmException, NoSuchProviderException {
provider = Security.getProvider(providerName);
if (provider == null){
throw new NoSuchProviderException("couldn't find "+provider);
}
String propName = type+algorithm;
String classname = provider.getProperty(propName);
if (classname != null){
try {
spi = Class.forName(classname, true, (ClassLoader)AccessController.doPrivileged(this)).newInstance();
return;
}catch(Exception e){}
}
classname = getAliasName("Alg.Alias." + propName, type);
if (classname != null){
try {
spi = Class.forName(classname, true, (ClassLoader)AccessController.doPrivileged(this)).newInstance();
return;
}catch(Exception e){}
}
throw new NoSuchAlgorithmException("couldn't find "+algorithm+" of type "+type);
}
CertAction(String algorithm, Provider provider, String type) throws CertificateException {
this.provider = provider;
String propName = type+algorithm;
String classname = provider.getProperty(propName);
if (classname != null){
try {
spi = Class.forName(classname, true, (ClassLoader)AccessController.doPrivileged(this)).newInstance();
return;
}catch(Exception e){}
}
classname = getAliasName("Alg.Alias." + propName, type);
if (classname != null){
try {
spi = Class.forName(classname, true, (ClassLoader)AccessController.doPrivileged(this)).newInstance();
return;
}catch(Exception e){}
}
throw new CertificateException("couldn't find "+algorithm+" of type "+type);
}
public Object run(){
return provider.getClass().getClassLoader();
}
private String getAliasName(String aliasName, String type){
String alias = provider.getProperty(aliasName);
if(alias != null){
alias = defaultProvider.getProperty(aliasName);
}
if(alias != null){
return provider.getProperty(type+alias);
}
return null;
}
}