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Posted to dev@tomcat.apache.org by co...@apache.org on 2003/03/12 07:49:50 UTC

cvs commit: jakarta-tomcat-catalina/catalina/src/share/org/apache/catalina/realm JAASRealm.java

costin      2003/03/11 22:49:50

  Modified:    catalina/src/share/org/apache/catalina/realm JAASRealm.java
  Log:
  Few small improvements.
  
  If not appname is specified - take the name of the embeding container ( less
  config for the user )
  
  IMPORTANT: the thread class loader must be set to find login modules
  in container ( like MemoryLoginModule ). For JAAS1.0 - that doesn't
  help ( LoginModules must be in CLASSPATH - jboss actually has a hack
  around it, but it's too complex ), but in JDK1.4 it does work fine.
  
  If no principal is found ( but login succeded ) - use the user name to create
   a principal.
  
  Implement the "Roles" Group - I'll revert if anyone -1.
  
  Revision  Changes    Path
  1.2       +90 -27    jakarta-tomcat-catalina/catalina/src/share/org/apache/catalina/realm/JAASRealm.java
  
  Index: JAASRealm.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-catalina/catalina/src/share/org/apache/catalina/realm/JAASRealm.java,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- JAASRealm.java	18 Jul 2002 16:47:55 -0000	1.1
  +++ JAASRealm.java	12 Mar 2003 06:49:50 -0000	1.2
  @@ -65,9 +65,11 @@
   
   
   import java.security.Principal;
  +import java.security.acl.Group;
   import java.util.ArrayList;
   import java.util.Iterator;
   import java.util.Set;
  +import java.util.Enumeration;
   import javax.security.auth.Subject;
   import javax.security.auth.login.AccountExpiredException;
   import javax.security.auth.login.CredentialExpiredException;
  @@ -76,7 +78,10 @@
   import javax.security.auth.login.LoginException;
   import org.apache.catalina.Lifecycle;
   import org.apache.catalina.LifecycleException;
  +import org.apache.catalina.Container;
   import org.apache.catalina.util.StringManager;
  +import org.apache.commons.logging.Log;
  +import org.apache.commons.logging.LogFactory;
   
   
   /**
  @@ -135,8 +140,9 @@
    */
   
   public class JAASRealm
  -    extends RealmBase {
  -
  +    extends RealmBase
  + {
  +    private static Log log = LogFactory.getLog(JAASRealm.class);
   
       // ----------------------------------------------------- Instance Variables
   
  @@ -145,7 +151,7 @@
        * The application name passed to the JAAS <code>LoginContext</code>,
        * which uses it to select the set of relevant <code>LoginModules</code>.
        */
  -    protected String appName = "Tomcat";
  +    protected String appName = null;
   
   
       /**
  @@ -185,6 +191,7 @@
       
       /**
        * setter for the appName member variable
  +     * @deprecated JAAS should use the Engine ( domain ) name and webpp/host overrides
        */
       public void setAppName(String name) {
           appName = name;
  @@ -197,6 +204,15 @@
           return appName;
       }
   
  +    public void setContainer(Container container) {
  +        super.setContainer(container);
  +        String name=container.getName();
  +        if( appName==null  ) {
  +            appName=name;
  +            log.info("Setting JAAS app name " + appName);
  +        }
  +    }
  +
       /**
        * Comma-delimited list of <code>javax.security.Principal</code> classes
        * that represent security roles.
  @@ -280,54 +296,81 @@
       public Principal authenticate(String username, String credentials) {
   
           // Establish a LoginContext to use for authentication
  +        try {
           LoginContext loginContext = null;
  +        if( appName==null ) appName="Tomcat";
  +
  +        if( log.isDebugEnabled())
  +            log.debug("Authenticating " + appName + " " +  username);
  +
  +        // What if the LoginModule is in the container class loader ?
  +        //
  +        ClassLoader ocl=Thread.currentThread().getContextClassLoader();
  +        Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
           try {
               loginContext = new LoginContext
                   (appName, new JAASCallbackHandler(this, username,
                                                     credentials));
  -        } catch (LoginException e) {
  -            log(sm.getString("jaasRealm.loginException", username), e);
  +        } catch (Throwable e) {
  +            log.debug("Error initializing JAAS: " +  e.toString());
  +
  +            log.debug(sm.getString("jaasRealm.loginException", username), e);
               return (null);
  +        } finally {
  +            Thread.currentThread().setContextClassLoader(ocl);
           }
   
  +        if( log.isDebugEnabled())
  +            log.debug("Login context created " + username);
  +
           // Negotiate a login via this LoginContext
           Subject subject = null;
           try {
               loginContext.login();
               subject = loginContext.getSubject();
               if (subject == null) {
  -                if (debug >= 2)
  -                    log(sm.getString("jaasRealm.failedLogin", username));
  +                if( log.isDebugEnabled())
  +                    log.debug(sm.getString("jaasRealm.failedLogin", username));
                   return (null);
               }
           } catch (AccountExpiredException e) {
  -            if (debug >= 2)
  -                log(sm.getString("jaasRealm.accountExpired", username));
  +            if (log.isDebugEnabled())
  +                log.debug(sm.getString("jaasRealm.accountExpired", username));
               return (null);
           } catch (CredentialExpiredException e) {
  -            if (debug >= 2)
  -                log(sm.getString("jaasRealm.credentialExpired", username));
  +            if (log.isDebugEnabled())
  +                log.debug(sm.getString("jaasRealm.credentialExpired", username));
               return (null);
           } catch (FailedLoginException e) {
  -            if (debug >= 2)
  -                log(sm.getString("jaasRealm.failedLogin", username));
  +            if (log.isDebugEnabled())
  +                log.debug(sm.getString("jaasRealm.failedLogin", username));
               return (null);
           } catch (LoginException e) {
  -            log(sm.getString("jaasRealm.loginException", username), e);
  +            log.debug(sm.getString("jaasRealm.loginException", username), e);
  +            return (null);
  +        } catch (Throwable e) {
  +            log.debug("Unexpected error", e);
               return (null);
           }
   
  +        if( log.isDebugEnabled())
  +            log.debug("Getting principal " + subject);
  +
           // Return the appropriate Principal for this authenticated Subject
  -        Principal principal = createPrincipal(subject);
  +        Principal principal = createPrincipal(username, subject);
           if (principal == null) {
  -            log(sm.getString("jaasRealm.authenticateError", username));
  +            log.debug(sm.getString("jaasRealm.authenticateFailure", username));
               return (null);
           }
  -        if (debug >= 2) {
  -            log(sm.getString("jaasRealm.authenticateSuccess", username));
  +        if (log.isDebugEnabled()) {
  +            log.debug(sm.getString("jaasRealm.authenticateSuccess", username));
           }
  -        return (principal);
   
  +        return (principal);
  +        } catch( Throwable t) {
  +            log.error( "error ", t);
  +            return null;
  +        }
       }
   
   
  @@ -374,9 +417,8 @@
        *
        * @param subject The Subject representing the logged in user
        */
  -    protected Principal createPrincipal(Subject subject) {
  +    protected Principal createPrincipal(String username, Subject subject) {
           // Prepare to scan the Principals for this Subject
  -        String username = null;
           String password = null; // Will not be carried forward
           ArrayList roles = new ArrayList();
   
  @@ -384,13 +426,35 @@
           Iterator principals = subject.getPrincipals().iterator();
           while (principals.hasNext()) {
               Principal principal = (Principal) principals.next();
  +            // No need to look further - that's our own stuff
  +            if( principal instanceof GenericPrincipal ) {
  +                if( log.isDebugEnabled() )
  +                    log.debug("Found old GenericPrincipal " + principal );
  +                return principal;
  +            }
               String principalClass = principal.getClass().getName();
  -            if ((username == null) && userClasses.contains(principalClass)) {
  +            if( log.isDebugEnabled() )
  +                log.info("Principal: " + principalClass + " " + principal);
  +
  +            if (userClasses.contains(principalClass)) {
  +                // Override the default - which is the original user, accepted by
  +                // the friendly LoginManager
                   username = principal.getName();
               }
               if (roleClasses.contains(principalClass)) {
                   roles.add(principal.getName());
               }
  +            // Same as Jboss - that's a pretty clean solution
  +            if( (principal instanceof Group) &&
  +                 "Roles".equals( principal.getName())) {
  +                Group grp=(Group)principal;
  +                Enumeration en=grp.members();
  +                while( en.hasMoreElements() ) {
  +                    Principal roleP=(Principal)en.nextElement();
  +                    roles.add( roleP.getName());
  +                }
  +
  +            }
           }
   
           // Create the resulting Principal for our authenticated user
  @@ -399,7 +463,6 @@
           } else {
               return (null);
           }
  -
       }
   
   
  
  
  

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