auth/ArgeoLoginContext.java

   1 package org.argeo.cms.auth;
   2
   3 import javax.security.auth.Subject;
   4 import javax.security.auth.callback.CallbackHandler;
   5 import javax.security.auth.login.LoginContext;
   6 import javax.security.auth.login.LoginException;
   7
   8 /** Integrates JAAS with the Argeo platform */
   9 public class ArgeoLoginContext extends LoginContext {
  10         private static ThreadLocal<ClassLoader> currentContextClassLoader = new ThreadLocal<ClassLoader>() {
  11                 @Override
  12                 protected ClassLoader initialValue() {
  13                         return Thread.currentThread().getContextClassLoader();
  14                 }
  15
  16                 @Override
  17                 public void set(ClassLoader value) {
  18                         throw new IllegalAccessError("Current class loader is read-only");
  19                 }
  20         };
  21
  22         public ArgeoLoginContext(String name, Subject subject,
  23                         CallbackHandler callbackHandler) throws LoginException {
  24                 super(setContextClassLoaderForName(name), subject, callbackHandler);
  25                 // reset current context classloader
  26                 Thread.currentThread().setContextClassLoader(
  27                                 currentContextClassLoader.get());
  28                 currentContextClassLoader.remove();
  29         }
  30
  31         /**
  32          * Set the context classloader
  33          *
  34          * @return the passed name, in order to chain calls in the constructor
  35          */
  36         private static String setContextClassLoaderForName(String name) {
  37                 // store current context class loader;
  38                 currentContextClassLoader.get();
  39                 Thread.currentThread().setContextClassLoader(
  40                                 ArgeoLoginContext.class.getClassLoader());
  41                 return name;
  42         }
  43
  44         @Override
  45         public void login() throws LoginException {
  46                 super.login();
  47         }
  48
  49         @Override
  50         public void logout() throws LoginException {
  51                 super.logout();
  52         }
  53 }