com.sun.gjc.util.SecurityUtils Maven / Gradle / Ivy
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package com.sun.gjc.util;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.gjc.common.DataSourceObjectBuilder;
import com.sun.gjc.spi.ConnectionRequestInfoImpl;
import javax.resource.ResourceException;
import javax.resource.spi.ManagedConnectionFactory;
import javax.resource.spi.security.PasswordCredential;
import javax.security.auth.Subject;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Set;
/**
* SecurityUtils for Generic JDBC Connector.
*
* @author Evani Sai Surya Kiran
* @version 1.0, 02/07/22
*/
public class SecurityUtils {
static private StringManager sm = StringManager.getManager(
DataSourceObjectBuilder.class);
/**
* This method returns the PasswordCredential object, given
* the ManagedConnectionFactory, subject and the
* ConnectionRequestInfo. It first checks if the
* ConnectionRequestInfo is null or not. If it is not null,
* it constructs a PasswordCredential object with
* the user and password fields from the ConnectionRequestInfo and returns this
* PasswordCredential object. If the ConnectionRequestInfo
* is null, it retrieves the PasswordCredential objects from
* the Subject parameter and returns the first
* PasswordCredential object which contains a
* ManagedConnectionFactory, instance equivalent
* to the ManagedConnectionFactory, parameter.
*
* @param mcf ManagedConnectionFactory
* @param subject Subject
* @param info ConnectionRequestInfo
* @return PasswordCredential
* @throws ResourceException generic exception if operation fails
* @throws SecurityException if access to the Subject instance is denied
*/
public static PasswordCredential getPasswordCredential(final ManagedConnectionFactory mcf,
final Subject subject, javax.resource.spi.ConnectionRequestInfo info) throws ResourceException {
if (info == null) {
if (subject == null) {
return null;
} else {
PasswordCredential pc = (PasswordCredential) AccessController.doPrivileged
(new PrivilegedAction() {
public Object run() {
Set passwdCredentialSet = subject.getPrivateCredentials(PasswordCredential.class);
Iterator iter = passwdCredentialSet.iterator();
while (iter.hasNext()) {
PasswordCredential temp = (PasswordCredential) iter.next();
if (temp.getManagedConnectionFactory().equals(mcf)) {
return temp;
}
}
return null;
}
});
if (pc == null) {
String msg = sm.getString("su.no_passwd_cred");
throw new javax.resource.spi.SecurityException(msg);
} else {
return pc;
}
}
} else {
ConnectionRequestInfoImpl cxReqInfo = (ConnectionRequestInfoImpl) info;
PasswordCredential pc = new PasswordCredential(cxReqInfo.getUser(), cxReqInfo.getPassword());
pc.setManagedConnectionFactory(mcf);
return pc;
}
}
/**
* Returns true if two strings are equal; false otherwise
*
* @param str1 String
* @param str2 String
* @return true if the two strings are equal
* false otherwise
*/
static private boolean isEqual(String str1, String str2) {
if (str1 == null) {
return (str2 == null);
} else {
return str1.equals(str2);
}
}
/**
* Returns true if two PasswordCredential objects are equal; false otherwise
*
* @param pC1 PasswordCredential
* @param pC2 PasswordCredential
* @return true if the two PasswordCredentials are equal
* false otherwise
*/
static public boolean isPasswordCredentialEqual(PasswordCredential pC1, PasswordCredential pC2) {
if (pC1 == pC2)
return true;
if (pC1 == null || pC2 == null)
return (pC1 == pC2);
if (!isEqual(pC1.getUserName(), pC2.getUserName())) {
return false;
}
return Arrays.equals(pC1.getPassword(), pC2.getPassword());
}
}