Example usage for java.io Console readPassword

Introduction

In this page you can find the example usage for java.io Console readPassword.

Prototype

public char[] readPassword(String fmt, Object... args) 

Source Link

Document

Provides a formatted prompt, then reads a password or passphrase from the console with echoing disabled.

Usage

From source file:it.flavianopetrocchi.jpdfbookmarks.JPdfBookmarks.java

private byte[] askUserPassword() {
    //avoid the use of strings when dealing with passwords they remain in memomory
    Console cons;
    char[] passwdChars = null;
    byte[] passwdBytes = null;
    if ((cons = System.console()) != null
            && (passwdChars = cons.readPassword("[%s:]", Res.getString("PASSWORD"))) != null) {
        passwdBytes = Ut.arrayOfCharsToArrayOfBytes(passwdChars);
        Arrays.fill(passwdChars, ' ');
    } else {//w  w w  .  j av a 2 s. co m
        out.print("[" + Res.getString("LABEL_PASSWORD") + "]");
        out.flush();
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        passwdChars = new char[MAX_PASSWORD_LEN];
        try {
            int charsRead = in.read(passwdChars, 0, MAX_PASSWORD_LEN);
            //remove \r and \n from the password
            for (int i = charsRead - 1; i >= 0; i--) {
                if (passwdChars[i] == '\r' || passwdChars[i] == '\n') {
                    charsRead--;
                } else {
                    break;
                }
            }
            char[] trimmedPasswd = Arrays.copyOf(passwdChars, charsRead);
            Arrays.fill(passwdChars, ' ');
            passwdBytes = Ut.arrayOfCharsToArrayOfBytes(trimmedPasswd);
            Arrays.fill(trimmedPasswd, ' ');
        } catch (IOException ex) {
        }
    }
    return passwdBytes;
}

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From source file:org.roda.core.RodaCoreFactory.java

private static String readPassword(final String message) throws IOException {
    final Console console = System.console();
    if (console == null) {
        final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        System.out.print(String.format("%s (INSECURE - password will be shown): ", message));
        return reader.readLine();
    } else {/*from ww  w.  j  ava  2 s  .  c om*/
        return new String(console.readPassword("%s: ", message));
    }
}

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From source file:org.rhq.server.control.RHQControl.java

private void promptForProperty(PropertiesFileUpdate pfu, Properties props, String propertiesFileName,
        String propertyName, boolean obfuscate, boolean encode, boolean hideInput) throws Exception {

    String propertyValue = props.getProperty(propertyName);
    if (StringUtil.isBlank(propertyValue)) {

        // prompt for the property value
        Console console = System.console();
        console.format("\nThe [%s] property is required but not set in [%s].\n", propertyName,
                propertiesFileName);//  www  .  j  a v a  2 s  .  c om
        console.format("Do you want to set [%s] value now?\n", propertyName);
        String response = "";
        while (!(response.startsWith("n") || response.startsWith("y"))) {
            response = String.valueOf(console.readLine("%s", "yes|no: ")).toLowerCase();
        }
        if (response.startsWith("n")) {
            throw new RHQControlException("Please update the [" + propertiesFileName + "] file as required.");
        }

        do {
            propertyValue = "";
            while (StringUtil.isBlank(propertyValue)) {
                if (!hideInput) {
                    propertyValue = String.valueOf(console.readLine("%s",
                            propertyName + (((obfuscate || encode) ? " (enter as plain text): " : ": "))));
                } else {
                    propertyValue = String.valueOf(console.readPassword("%s",
                            propertyName + (((obfuscate || encode) ? " (enter as plain text): " : ": "))));
                }
            }

            if (!hideInput) {
                console.format("Is [" + propertyValue + "] correct?\n");
                response = "";
                while (!(response.startsWith("n") || response.startsWith("y"))) {
                    response = String.valueOf(console.readLine("%s", "yes|no: ")).toLowerCase();
                }
            } else {
                console.format("Confirm:\n");
                String confirmValue = String.valueOf(console.readPassword("%s",
                        propertyName + (((obfuscate || encode) ? " (enter as plain text): " : ": "))));
                response = (propertyValue.equals(confirmValue) ? "yes" : "no");
            }
        } while (response.startsWith("n"));

        propertyValue = obfuscate ? Obfuscator.encode(propertyValue) : propertyValue;
        propertyValue = encode
                ? CryptoUtil.createPasswordHash("MD5", CryptoUtil.BASE64_ENCODING, null, null, propertyValue)
                : propertyValue;
        props.setProperty(propertyName, propertyValue);
        pfu.update(props);
    }
}

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