Glassfish example source code file (TextLoginDialog.java)

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Java - Glassfish tags/keywords

bufferedreader, bufferedreader, choicecallback, choicecallback, io, keystore, log, logging, namecallback, object, password, passwordcallback, passwordcallback, pushbackinputstream, reflection, string, string, textlogindialog, util

The Glassfish TextLoginDialog.java source code

/*
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 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
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 */
package com.sun.enterprise.security;

import com.sun.enterprise.security.ssl.SSLUtils;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.lang.reflect.Array;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.logging.*;
import javax.security.auth.callback.*;

import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.logging.*;
import java.io.InputStream;
import java.io.PushbackInputStream;
import org.glassfish.internal.api.Globals;

/**
 * This implementation of LoginDialog
 * If these are not set, then it queries the user in the command window.
 *
 * @author Harish Prabandham
 */
public final class TextLoginDialog implements LoginDialog {

    private static Logger _logger = null;

    static {
        _logger = LogDomains.getLogger(TextLoginDialog.class, LogDomains.SECURITY_LOGGER);
    }
    private String username = null;
    private char[] password = null;
    private static LocalStringManagerImpl localStrings =
            new LocalStringManagerImpl(TextLoginDialog.class);

    public TextLoginDialog(Callback[] callbacks) {
        try {
            for (int i = 0; i < callbacks.length; i++) {
                if (callbacks[i] instanceof NameCallback) {
                    NameCallback nc = (NameCallback) callbacks[i];
                    System.err.print(nc.getPrompt());
                    if (nc.getDefaultName() != null) {
                        System.err.print("[" + nc.getDefaultName() + "]: ");
                    } else {
                        System.err.print(": ");
                    }

                    System.err.flush();
                    username = (new BufferedReader(new InputStreamReader(System.in))).readLine();
                    if ((nc.getDefaultName() != null) && ((username == null) || (username.trim().length() == 0))) {
                        username = nc.getDefaultName();
                    }
                    nc.setName(username);

                } else if (callbacks[i] instanceof PasswordCallback) {
                    PasswordCallback pc = (PasswordCallback) callbacks[i];
                    char[] passwd = null;
                    Object consoleObj = null;
                    Method readPasswordMethod = null;
                    try {
                        Method consoleMethod = System.class.getMethod("console");
                        consoleObj = consoleMethod.invoke(null);
                        readPasswordMethod =
                                consoleObj.getClass().getMethod(
                                "readPassword", String.class,
                                Array.newInstance(Object.class, 1).getClass());
                    } catch (Exception ex) {
                    }

                    if (consoleObj != null && readPasswordMethod != null) {
                        passwd = (char[]) readPasswordMethod.invoke(
                                consoleObj, "%s",
                                new Object[]{pc.getPrompt()});
                    } else {
                        System.err.print(pc.getPrompt());
                        System.err.flush();
                        passwd = readPassword(System.in);
                    }
                    if (passwd != null) {
                        pc.setPassword(passwd);
                        Arrays.fill(passwd, ' ');
                    }
                } else if (callbacks[i] instanceof ChoiceCallback) {
                    ChoiceCallback cc = (ChoiceCallback) callbacks[i];
                    /* Get the keystore password to see if the user is
                     * authorized to see the list of certificates
                     */
                    String lbl = (localStrings.getLocalString("enterprise.security.keystore",
                            "Enter the KeyStore Password "));
                    SSLUtils sslUtils = Globals.get(SSLUtils.class);
                    System.out.println(lbl
                            + " : (max 3 tries)");
                    int cnt = 0;
                    for (cnt = 0; cnt < 3; cnt++) {
                        // Let the user try putting password thrice
                        System.out.println(lbl + " : ");
                        char[] kp =
                                (new BufferedReader(new InputStreamReader(System.in))).readLine().toCharArray();
                        if (sslUtils.verifyMasterPassword(kp)) {
                            break;
                        } else {
                            String errmessage = localStrings.getLocalString("enterprise.security.IncorrectKeystorePassword", "Incorrect Keystore Password");
                            System.err.println(errmessage);
                        }
                        Arrays.fill(kp, ' ');
                    }
                    if (cnt >= 3) {
                        cc.setSelectedIndex(-1);
                    } else {
                        System.err.println(cc.getPrompt());
                        System.err.flush();
                        String[] choices = cc.getChoices();
                        for (int j = 0; j < choices.length; j++) {
                            System.err.print("[" + j + "] ");
                            System.err.println(choices[j]);
                        }
                        String line =
                                (new BufferedReader(new InputStreamReader(System.in))).readLine();

                        int sel = new Integer(line).intValue();
                        // System.out.println("SELECTED VAL:" + sel);
                        cc.setSelectedIndex(sel);
                    }
                }
            }
        } catch (Exception e) {
            _logger.log(Level.SEVERE,
                    "java_security.name_password_entry_exception", e);
        }

    }

    /**
     * @return The username of the user.
     */
    public String getUserName() {
        return username;
    }

    /**
     *@return The password of the user in plain text...
     */
    public final char[] getPassword() {
        return (password == null) ? null : Arrays.copyOf(password, password.length);
    }

    private static char[] readPassword(InputStream in) throws IOException {
        char[] lineBuffer;
        char[] buf;
        int i;

        buf = lineBuffer = new char[128];
        int room = buf.length;
        int offset = 0;
        int c;

        loop:
        while (true) {
            switch (c = in.read()) {
                case -1:
                case '\n':
                    break loop;

                case '\r':
                    int c2 = in.read();
                    if ((c2 != '\n') && (c2 != -1)) {
                        if (!(in instanceof PushbackInputStream)) {
                            in = new PushbackInputStream(in);
                        }
                        ((PushbackInputStream) in).unread(c2);
                    } else {
                        break loop;

                        
                    }
                default:
                    if (--room < 0) {
                        buf = new char[offset + 128];
                        room = buf.length - offset - 1;
                        System.arraycopy(lineBuffer, 0, buf, 0, offset);
                        Arrays.fill(lineBuffer, ' ');
                        lineBuffer = buf;
                    }
                    buf[offset++] = (char) c;
                    break;
            }
        }

        if (offset == 0) {
            return null;
        }

        char[] ret = new char[offset];
        System.arraycopy(buf, 0, ret, 0, offset);
        Arrays.fill(buf, ' ');

        return ret;
    }
}