jxplorer.java

JAVA开源LDAP浏览器jxplorer的源码!

        searchTree.setRoot(SmartTree.NODATA);

        if (schemaTree == null) return;
        schemaTree.clearTree();
        schemaTree.setRoot(SmartTree.NODATA);

        // TODO: maybe restart jndibroker thread somehow?
    }

    /**
     * Perform necessary setup after a connection has been established.
     * This will link up the trees with their respective data
     * brokers.<p>
     * <p/>
     * This does quite a bit of work, including trying to find the default
     * base naming context(s), and registering schema.
     */

    public boolean postConnectionSetup(JNDIBroker.DataConnectionQuery request)
    {
        searchTree.clearTree();
        if (workOffline == true)
        {
            workOffline = false;
            offlineBroker.clear();
            //mrTree.registerDataSource(jxplorer.jndiBroker, new DN(SmartTree.NODATA));
        }

        String baseDN = request.conData.baseDN;
        DN base = new DN(baseDN);
        DN[] namingContexts = null;

        int ldapV = request.conData.version;

        try
        {
            if (base == null || base.size() == 0 || jndiBroker.getDirOp().exists(base) == false)
            {
                if (ldapV == 2)
                {
                    if (jndiBroker.getDirOp().exists(base) == false) // bail out if we can't find the base DN for ldap v2
                    {
                        CBUtility.error("Error opening ldap v2 connection - bad base DN '" + ((base == null) ? "*null*" : base.toString()) + "' ");
                        disconnect();
                        return false;
                    }
                }
                else // for ldap v3, try to find a valid base.
                {
                    if (base != null && base.size() > 0)
                        log.warning("The Base DN '" + base + "' cannot be found.");

                    base = null;  // set base to a known state.

                    namingContexts = jndiBroker.readFallbackRoot();  // may return null, but that's o.k.

                    if (baseDN.trim().length() > 0)
                    {
// Change from user error message to log message CBErrorWin errWin = new CBErrorWin(this, CBIntText.get("The DN you are trying to access cannot be found or does not exist.  The fall back DN is ") + namingContexts[0].toString(), "DN Not Found"); 	//TE: user info.
                        if (namingContexts != null && namingContexts[0] != null)
                            log.warning("Cannot find the user-specified Base DN - Using the fall back DN '" + namingContexts[0].toString() + "'");
                        else
                            log.warning("WARNING: Cannot find the user-specified Base DN, and cannot read alternative from directory.  Leaving unset for the present.");
                    }

                    if (namingContexts != null && namingContexts.length == 1) // if we only have one context...
                        base = namingContexts[0];                             // ... make it our base
                }
            }

            mrTree.clearTree();
            mrTree.registerDataSource(jndiBroker);
        }
        catch (Exception ex)	// wierd things can go wrong here; especially if ldap v2
        {
            if (ldapV != 2)
            {
                CBUtility.error("Possible errors occurred while opening connection.", ex);  // if not ldap v2, try to carry on anyway
            }
            else  // if ldap v2, just bail out.
            {
                CBUtility.error("Error opening ldap v2 connection (possibly bad base DN?) ", ex);
                disconnect();
                return false;
            }
        }

        //
        //    Set up the initial state of the tree, either with the base DN given, or with
        //    a set of Naming Contexts read from 'jndiBroker.readFallbackRoot()', or by
        //    trying to expand a blank DN (i.e. by doing a list on "").
        //

        if (base != null)    // We've got a single base DN - use it to set the tree root...
        {
            mrTree.setRoot(base);

            if (base.size() == 0)
            {
                mrTree.expandRoot();
                mrTree.getRootNode().setAlwaysRefresh(true);
            }
            else
            {
                mrTree.expandDN(base);
                makeDNAutoRefreshing(base);
            }

        }
        else if (namingContexts != null)  // We've got multiple naming contexts - add them all.
        {
            mrTree.setRoot("");
            for (int i = 0; i < namingContexts.length; i++)         // for each context
            {
                DN namingContext = namingContexts[i];           // get the 'base' DN
                SmartNode node = mrTree.addNode(namingContext); // add that to the tree as a node

                // *Amazing* but harmless Hack for Mr John Q. Birrell
                if (node.getChildCount() == 0)                  // if nothing is there already (might be if server mis-configured)
                    node.add(new SmartNode());                  // make that node expandable
            }

            for (int i = 0; i < namingContexts.length; i++)         // for each context
            {
                mrTree.expandDN(namingContexts[i]);                 // and make the node visible.
                makeDNAutoRefreshing(namingContexts[i]);

            }
        }
        else    // no information; try to expand an empty dn and see what we get!
        {
            mrTree.expandRoot();
            mrTree.getRootNode().setAlwaysRefresh(true);
        }

        searchTree.clearTree();
        searchBroker.registerDirectoryConnection(jndiBroker);
        searchTree.registerDataSource(searchBroker);
        searchTree.setRoot(new DN(SmartTree.NODATA));

        schemaTree.clearTree();

        if (Integer.toString(ldapV) != null && ldapV > 2)
        {
            schemaBroker.registerDirectoryConnection(jndiBroker);
            schemaTree.registerDataSource(schemaBroker);
            schemaTree.setRoot(new DN("cn=schema"));

            DXAttribute.setDefaultSchema(jndiBroker.getSchemaOps());
            DXAttributes.setDefaultSchema(jndiBroker.getSchemaOps());
        }
        else
        {
            DXAttribute.setDefaultSchema(null);
            DXAttributes.setDefaultSchema(null);
        }

        if (base != null)
        {
            jndiBroker.getEntry(base);   // read first entry.
            JXplorer.setDefaultProperty("baseDN", base.toString());

            url = request.conData.url;
            setStatus(CBIntText.get("Connected To ''{0}''", new String[]{url}));
        }

        getButtonRegister().setConnectedState();
        mainMenu.setConnected(true);
        setConnected(true);

        return true;
    }

    protected void makeDNAutoRefreshing(DN dn)
    {
        try
        {
            TreePath path = ((SmartModel) mrTree.getModel()).getPathForDN(dn);
            if (path == null) throw new Exception("null path returned");
            Object[] nodes = path.getPath();
            for (int j = 0; j < nodes.length - 1; j++)
            {
                ((SmartNode) nodes[j]).setAlwaysRefresh(true);  // XXX hack for x500/ldap server compatibility - force refreshing if certain magic nodes are expanded.
            }

        }
        catch (Exception e)
        {
            log.info("INFO: messed up setting auto-expanding nodes for context '" + dn + "'");
        }
    }


    /**
     * Disables/enables the menu and button bar items to reflect a disconnected state.
     * Clears the Explore, Results and Schema trees and also sets the status message
     * to disconnected.
     */

    public void disconnect()
    {
        jndiBroker.disconnect();
        mrTree.clearTree();
        schemaTree.clearTree();
        searchTree.clearTree();
        searchTree.setNumOfResults(0);

        getButtonRegister().setDisconnectState();

        mainMenu.setDisconnected();
        setConnected(false);

        setStatus(CBIntText.get("Disconnected"));
    }


    /**
     * Disables/enables the menu and button bar items to reflect a disconnected state.
     * Also sets the status message to disconnected.
     */

    public void setDisconnectView()
    {
        mainMenu.setDisconnected();
        getButtonRegister().setDisconnectState();

        setStatus(CBIntText.get("Disconnected"));
    }



    //
    //    Make JXplorer into an event generating object, that can
    //    register ActionListeners and trigger actionEvents.
    //

    /**
     * Add the specified JXplorer listener to receive JXplorer events from
     * JXplorer. Currently,the only JXplorer event occurs when a user selects a DN.
     * If l is null, no exception is thrown and no JXplorer is performed.
     *
     * @param l the JXplorer listener
     * @see #removeJXplorerListener
     */

    public synchronized void addJXplorerListener(JXplorerListener l)
    {
        if (l != null)
            eventListeners.add(JXplorerListener.class, l);
    }

    /**
     * Remove the specified JXplorer listener so that it no longer
     * receives JXplorer events from this button. JXplorer events occur
     * when a user presses or releases the mouse over this button.
     * If l is null, no exception is thrown and no JXplorer is performed.
     *
     * @param l the JXplorer listener
     * @see #addJXplorerListener
     */
    public synchronized void removeJXplorerListener(JXplorerListener l)
    {
        if (l != null)
            eventListeners.remove(JXplorerListener.class, l);
    }


    /**
     * Creates JXplorer events
     * by dispatching them to any registered
     * <code>JXplorerListener</code> objects.
     * (Implements the JXplorerEventGenerator interface)
     * <p/>
     *
     * @param e the JXplorer event.
     * @see com.ca.directory.jxplorer.event.JXplorerEventGenerator
     * @see com.ca.directory.jxplorer.event.JXplorerListener
     * @see com.ca.directory.jxplorer.JXplorer#addJXplorerListener
     */
    public void fireJXplorerEvent(JXplorerEvent e)
    {
        Object[] list = eventListeners.getListenerList();
        for (int index = list.length - 2; index >= 0; index -= 2)
        {
            if (list[index] == JXplorerListener.class)
            {
                ((JXplorerListener) list[index + 1]).JXplorerDNSelected(e);
            }
        }
    }


    /**
     * Displays a splash screen with a thin black border in the center of the screen.
     * Splash screen auto-sizes to be very slightly larger than the templates/JXsplash.gif image.
     */

    public void showSplashScreen(JWindow splash)
    {
        ImageIcon splashIcon = new ImageIcon("templates" + File.separator + "JXsplash.gif");
        int width = splashIcon.getIconWidth();
        int height = splashIcon.getIconHeight();
        Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
        splash.setBounds((screen.width - width) / 2, (screen.height - height) / 2, width, height);
        JLabel pic = new JLabel(splashIcon);
        JPanel content = (JPanel) splash.getContentPane();
        content.add(pic);
        splash.setVisible(true);
    }


    /**
     * A variety of plugin possibilities exist in JXplorer.  To make distribution easier, it
     * is possible to package up class files, as well as image/text/etc. files, and use a
     * custom resource loader to access these zipped/jarred resources.  This sets it all up,
     * as well as adding any custom security providers...
     */

    public void setupResourceFiles()
    {
        resourceLoader = new CBResourceLoader();
        classLoader = new CBClassLoader(resourceLoader);

        String pluginPath = JXplorer.getProperty("dir.plugins");
        String[] pluginFiles = CBUtility.readFilteredDirectory(pluginPath, new String[]{"zip", "jar"});
        if (pluginFiles == null)
        {
            log.warning("Unable to access plugins directory: '" + pluginPath + "'");
            return;
        }

        for (int i = 0; i < pluginFiles.length; i++)
            resourceLoader.addResource(new CBJarResource(pluginPath + pluginFiles[i]));

        setupSecurityProviders();

        setupGSSAPIConfig();

    }

    /**
     * This sets up the inital GSSAPI config file if it does not already exist, and sets the
     * login config system property.
     */

    protected void setupGSSAPIConfig()
    {
        try
        {
            String sep = System.getProperty("line.separator");

            // the default gssapi.conf file (provided by Vadim Tarassov).
            String defaultFileText = "com.ca.commons.jndi.JNDIOps {" + sep +
                    "  com.sun.security.auth.module.Krb5LoginModule required client=TRUE" + sep +
                    "  \t\t\t\t\t\t\t\t\t\t\t\t\t\tuseTicketCache=TRUE;" + sep +
                    "};";

            String configFile = CBUtility.getPropertyConfigPath("gssapi