Java Code Examples for sun.security.action.GetPropertyAction#privilegedGetProperty()

static LocalGregorianCalendar getLocalGregorianCalendar(String name) {
    // Only the Japanese calendar is supported.
    if (!"japanese".equals(name)) {
        return null;
    }

    // Append an era to the predefined eras if it's given by the property.
    String prop = GetPropertyAction
            .privilegedGetProperty("jdk.calendar.japanese.supplemental.era");
    if (prop != null) {
        Era era = parseEraEntry(prop);
        if (era != null) {
            if (isValidEra(era, JAPANESE_ERAS)) {
                int length = JAPANESE_ERAS.length;
                Era[] eras = new Era[length + 1];
                System.arraycopy(JAPANESE_ERAS, 0, eras, 0, length);
                eras[length] = era;
                return new LocalGregorianCalendar(name, eras);
            }
        }
    }
    return new LocalGregorianCalendar(name, JAPANESE_ERAS);
}
 

/**
 * Returns the max size allowed for a cached temp buffers, in
 * bytes. It defaults to Long.MAX_VALUE. It can be set with the
 * jdk.nio.maxCachedBufferSize property. Even though
 * ByteBuffer.capacity() returns an int, we're using a long here
 * for potential future-proofing.
 */
private static long getMaxCachedBufferSize() {
    String s = GetPropertyAction
            .privilegedGetProperty("jdk.nio.maxCachedBufferSize");
    if (s != null) {
        try {
            long m = Long.parseLong(s);
            if (m >= 0) {
                return m;
            } else {
                // if it's negative, ignore the system property
            }
        } catch (NumberFormatException e) {
            // if the string is not well formed, ignore the system property
        }
    }
    return Long.MAX_VALUE;
}
 

static LocalGregorianCalendar getLocalGregorianCalendar(String name) {
    // Only the Japanese calendar is supported.
    if (!"japanese".equals(name)) {
        return null;
    }

    // Append an era to the predefined eras if it's given by the property.
    String prop = GetPropertyAction
            .privilegedGetProperty("jdk.calendar.japanese.supplemental.era");
    if (prop != null) {
        Era era = parseEraEntry(prop);
        if (era != null) {
            if (isValidEra(era, JAPANESE_ERAS)) {
                int length = JAPANESE_ERAS.length;
                Era[] eras = new Era[length + 1];
                System.arraycopy(JAPANESE_ERAS, 0, eras, 0, length);
                eras[length] = era;
                return new LocalGregorianCalendar(name, eras);
            }
        }
    }
    return new LocalGregorianCalendar(name, JAPANESE_ERAS);
}
 

@Override
FileTypeDetector getFileTypeDetector() {
    String userHome = GetPropertyAction.privilegedGetProperty("user.home");
    Path userMimeTypes = Paths.get(userHome, ".mime.types");
    Path etcMimeTypes = Paths.get("/etc/mime.types");

    return chain(new MimeTypesFileTypeDetector(userMimeTypes),
                 new MimeTypesFileTypeDetector(etcMimeTypes));
}
 

static boolean isFastFileTransferRequested() {
    String fileTransferProp = GetPropertyAction
            .privilegedGetProperty("jdk.nio.enableFastFileTransfer");
    boolean enable;
    if ("".equals(fileTransferProp)) {
        enable = true;
    } else {
        enable = Boolean.parseBoolean(fileTransferProp);
    }
    return enable;
}
 

static Platform get() {
    String osName = GetPropertyAction.privilegedGetProperty("os.name");

    if (osName.equals("Linux")) { return LINUX; }
    if (osName.contains("OS X")) { return BSD; }
    if (osName.equals("SunOS")) { return SOLARIS; }
    if (osName.equals("AIX")) { return AIX; }

    throw new Error(osName + " is not a supported OS platform.");
}
 

private static boolean isSharedFileLockTable() {
    if (!propertyChecked) {
        synchronized (FileChannelImpl.class) {
            if (!propertyChecked) {
                String value = GetPropertyAction.privilegedGetProperty(
                        "sun.nio.ch.disableSystemWideOverlappingFileLockCheck");
                isSharedFileLockTable = ((value == null) || value.equals("false"));
                propertyChecked = true;
            }
        }
    }
    return isSharedFileLockTable;
}
 

static String getSimpleFormat(String key, Function<String, String> defaultPropertyGetter) {
    // Double check that 'key' is one of the expected property names:
    // - DEFAULT_FORMAT_PROP_KEY is used to control the
    //   SimpleConsoleLogger format when java.logging is
    //   not present.
    // - JUL_FORMAT_PROP_KEY is used when this method is called
    //   from the SurrogateLogger subclass. It is used to control the
    //   SurrogateLogger format and java.util.logging.SimpleFormatter
    //   format when java.logging is present.
    // This method should not be called with any other key.
    if (!DEFAULT_FORMAT_PROP_KEY.equals(key)
            && !JUL_FORMAT_PROP_KEY.equals(key)) {
        throw new IllegalArgumentException("Invalid property name: " + key);
    }

    // Do not use any lambda in this method. Using a lambda here causes
    //    jdk/test/java/lang/invoke/lambda/LogGeneratedClassesTest.java
    // to fail - because that test has a testcase which somehow references
    // PlatformLogger and counts the number of generated lambda classes.
    String format = GetPropertyAction.privilegedGetProperty(key);

    if (format == null && defaultPropertyGetter != null) {
        format = defaultPropertyGetter.apply(key);
    }
    if (format != null) {
        try {
            // validate the user-defined format string
            String.format(format, ZonedDateTime.now(), "", "", "", "", "");
        } catch (IllegalArgumentException e) {
            // illegal syntax; fall back to the default format
            format = DEFAULT_FORMAT;
        }
    } else {
        format = DEFAULT_FORMAT;
    }
    return format;
}
 

static String getSimpleFormat(String key, Function<String, String> defaultPropertyGetter) {
    // Double check that 'key' is one of the expected property names:
    // - DEFAULT_FORMAT_PROP_KEY is used to control the
    //   SimpleConsoleLogger format when java.logging is
    //   not present.
    // - JUL_FORMAT_PROP_KEY is used when this method is called
    //   from the SurrogateLogger subclass. It is used to control the
    //   SurrogateLogger format and java.util.logging.SimpleFormatter
    //   format when java.logging is present.
    // This method should not be called with any other key.
    if (!DEFAULT_FORMAT_PROP_KEY.equals(key)
            && !JUL_FORMAT_PROP_KEY.equals(key)) {
        throw new IllegalArgumentException("Invalid property name: " + key);
    }

    // Do not use any lambda in this method. Using a lambda here causes
    //    jdk/test/java/lang/invoke/lambda/LogGeneratedClassesTest.java
    // to fail - because that test has a testcase which somehow references
    // PlatformLogger and counts the number of generated lambda classes.
    String format = GetPropertyAction.privilegedGetProperty(key);

    if (format == null && defaultPropertyGetter != null) {
        format = defaultPropertyGetter.apply(key);
    }
    if (format != null) {
        try {
            // validate the user-defined format string
            String.format(format, ZonedDateTime.now(), "", "", "", "", "");
        } catch (IllegalArgumentException e) {
            // illegal syntax; fall back to the default format
            format = DEFAULT_FORMAT;
        }
    } else {
        format = DEFAULT_FORMAT;
    }
    return format;
}
 

static Level getDefaultLevel() {
    String levelName = GetPropertyAction
            .privilegedGetProperty("jdk.system.logger.level", "INFO");
    try {
        return Level.valueOf(levelName);
    } catch (IllegalArgumentException iae) {
        return Level.INFO;
    }
}
 

/**
 * Determines if the application doesn't mind if the mechanism obtains
 * the required credentials from outside of the current Subject. Our
 * Kerberos v5 mechanism would do a JAAS login on behalf of the
 * application if this were the case.
 *
 * The application indicates this by explicitly setting the system
 * property javax.security.auth.useSubjectCredsOnly to false.
 */
public static boolean useSubjectCredsOnly(GSSCaller caller) {

    String propValue = GetPropertyAction.privilegedGetProperty(
            "javax.security.auth.useSubjectCredsOnly");

    // Invalid values should be ignored and the default assumed.
    if (caller instanceof HttpCaller) {
        // Default for HTTP/SPNEGO is false.
        return "true".equalsIgnoreCase(propValue);
    } else {
        // Default for JGSS is true.
        return !("false".equalsIgnoreCase(propValue));
    }
}
 

/**
 * Determines if the application doesn't mind if the mechanism obtains
 * the required credentials from outside of the current Subject. Our
 * Kerberos v5 mechanism would do a JAAS login on behalf of the
 * application if this were the case.
 *
 * The application indicates this by explicitly setting the system
 * property javax.security.auth.useSubjectCredsOnly to false.
 */
public static boolean useSubjectCredsOnly(GSSCaller caller) {

    String propValue = GetPropertyAction.privilegedGetProperty(
            "javax.security.auth.useSubjectCredsOnly");

    // Invalid values should be ignored and the default assumed.
    if (caller instanceof HttpCaller) {
        // Default for HTTP/SPNEGO is false.
        return "true".equalsIgnoreCase(propValue);
    } else {
        // Default for JGSS is true.
        return !("false".equalsIgnoreCase(propValue));
    }
}
 

private static boolean allowNonCaAnchor() {
    String prop = GetPropertyAction
        .privilegedGetProperty("jdk.security.allowNonCaAnchor");
    return prop != null && (prop.isEmpty() || prop.equalsIgnoreCase("true"));
}
 

private boolean findExecutablePath(String str) {
    if (str == null || str.length() == 0) {
        return false;
    }

    String command;
    int index = str.indexOf(' ');
    if (index != -1) {
        command = str.substring(0, index);
    }
    else {
        command = str;
    }

    File f = new File(command);
    if (f.isFile()) {
        // Already executable as it is
        execPath = str;
        return true;
    }

    String execPathList;
    execPathList = GetPropertyAction.privilegedGetProperty("exec.path");
    if (execPathList == null) {
        // exec.path property not set
        return false;
    }

    StringTokenizer iter = new StringTokenizer(execPathList, "|");
    while (iter.hasMoreElements()) {
        String prefix = (String)iter.nextElement();
        String fullCmd = prefix + File.separator + command;
        f = new File(fullCmd);
        if (f.isFile()) {
            execPath = prefix + File.separator + str;
            return true;
        }
    }

    return false; // application not found in exec.path
}
 

private static Collection<CipherSuite> getCustomizedCipherSuites(
        String propertyName) {

    String property = GetPropertyAction.privilegedGetProperty(propertyName);
    if (debug != null && Debug.isOn("sslctx")) {
        System.out.println(
                "System property " + propertyName + " is set to '" +
                property + "'");
    }
    if (property != null && property.length() != 0) {
        // remove double quote marks from beginning/end of the property
        if (property.length() > 1 && property.charAt(0) == '"' &&
                property.charAt(property.length() - 1) == '"') {
            property = property.substring(1, property.length() - 1);
        }
    }

    if (property != null && property.length() != 0) {
        String[] cipherSuiteNames = property.split(",");
        Collection<CipherSuite> cipherSuites =
                    new ArrayList<>(cipherSuiteNames.length);
        for (int i = 0; i < cipherSuiteNames.length; i++) {
            cipherSuiteNames[i] = cipherSuiteNames[i].trim();
            if (cipherSuiteNames[i].isEmpty()) {
                continue;
            }

            CipherSuite suite;
            try {
                suite = CipherSuite.valueOf(cipherSuiteNames[i]);
            } catch (IllegalArgumentException iae) {
                if (debug != null && Debug.isOn("sslctx")) {
                    System.out.println(
                            "Unknown or unsupported cipher suite name: " +
                            cipherSuiteNames[i]);
                }

                continue;
            }

            if (suite.isAvailable()) {
                cipherSuites.add(suite);
            } else {
                if (debug != null && Debug.isOn("sslctx")) {
                    System.out.println(
                            "The current installed providers do not " +
                            "support cipher suite: " + cipherSuiteNames[i]);
                }
            }
        }

        return cipherSuites;
    }

    return Collections.emptyList();
}
 

private static boolean allowNonCaAnchor() {
    String prop = GetPropertyAction
        .privilegedGetProperty("jdk.security.allowNonCaAnchor");
    return prop != null && (prop.isEmpty() || prop.equalsIgnoreCase("true"));
}
 

private boolean findExecutablePath(String str) {
    if (str == null || str.isEmpty()) {
        return false;
    }

    String command;
    int index = str.indexOf(' ');
    if (index != -1) {
        command = str.substring(0, index);
    }
    else {
        command = str;
    }

    File f = new File(command);
    if (f.isFile()) {
        // Already executable as it is
        execPath = str;
        return true;
    }

    String execPathList;
    execPathList = GetPropertyAction.privilegedGetProperty("exec.path");
    if (execPathList == null) {
        // exec.path property not set
        return false;
    }

    StringTokenizer iter = new StringTokenizer(execPathList, "|");
    while (iter.hasMoreElements()) {
        String prefix = (String)iter.nextElement();
        String fullCmd = prefix + File.separator + command;
        f = new File(fullCmd);
        if (f.isFile()) {
            execPath = prefix + File.separator + str;
            return true;
        }
    }

    return false; // application not found in exec.path
}
 

private static boolean allowNonCaAnchor() {
    String prop = GetPropertyAction
        .privilegedGetProperty("jdk.security.allowNonCaAnchor");
    return prop != null && (prop.isEmpty() || prop.equalsIgnoreCase("true"));
}
 

private static Collection<CipherSuite> getCustomizedCipherSuites(
        String propertyName) {

    String property = GetPropertyAction.privilegedGetProperty(propertyName);
    if (SSLLogger.isOn && SSLLogger.isOn("ssl,sslctx")) {
        SSLLogger.fine(
                "System property " + propertyName + " is set to '" +
                property + "'");
    }
    if (property != null && property.length() != 0) {
        // remove double quote marks from beginning/end of the property
        if (property.length() > 1 && property.charAt(0) == '"' &&
                property.charAt(property.length() - 1) == '"') {
            property = property.substring(1, property.length() - 1);
        }
    }

    if (property != null && property.length() != 0) {
        String[] cipherSuiteNames = property.split(",");
        Collection<CipherSuite> cipherSuites =
                    new ArrayList<>(cipherSuiteNames.length);
        for (int i = 0; i < cipherSuiteNames.length; i++) {
            cipherSuiteNames[i] = cipherSuiteNames[i].trim();
            if (cipherSuiteNames[i].isEmpty()) {
                continue;
            }

            CipherSuite suite;
            try {
                suite = CipherSuite.nameOf(cipherSuiteNames[i]);
            } catch (IllegalArgumentException iae) {
                if (SSLLogger.isOn && SSLLogger.isOn("ssl,sslctx")) {
                    SSLLogger.fine(
                            "Unknown or unsupported cipher suite name: " +
                            cipherSuiteNames[i]);
                }

                continue;
            }

            if (suite != null && suite.isAvailable()) {
                cipherSuites.add(suite);
            } else {
                if (SSLLogger.isOn && SSLLogger.isOn("ssl,sslctx")) {
                    SSLLogger.fine(
                            "The current installed providers do not " +
                            "support cipher suite: " + cipherSuiteNames[i]);
                }
            }
        }

        return cipherSuites;
    }

    return Collections.emptyList();
}
 

/**
 * Create a StatusResponseManager with default parameters.
 */
StatusResponseManager() {
    int cap = AccessController.doPrivileged(
            new GetIntegerAction("jdk.tls.stapling.cacheSize",
                DEFAULT_CACHE_SIZE));
    cacheCapacity = cap > 0 ? cap : 0;

    int life = AccessController.doPrivileged(
            new GetIntegerAction("jdk.tls.stapling.cacheLifetime",
                DEFAULT_CACHE_LIFETIME));
    cacheLifetime = life > 0 ? life : 0;

    String uriStr = GetPropertyAction
            .privilegedGetProperty("jdk.tls.stapling.responderURI");
    URI tmpURI;
    try {
        tmpURI = ((uriStr != null && !uriStr.isEmpty()) ?
                new URI(uriStr) : null);
    } catch (URISyntaxException urise) {
        tmpURI = null;
    }
    defaultResponder = tmpURI;

    respOverride = AccessController.doPrivileged(
            new GetBooleanAction("jdk.tls.stapling.responderOverride"));
    ignoreExtensions = AccessController.doPrivileged(
            new GetBooleanAction("jdk.tls.stapling.ignoreExtensions"));

    threadMgr = new ScheduledThreadPoolExecutor(DEFAULT_CORE_THREADS,
            new ThreadFactory() {
        @Override
        public Thread newThread(Runnable r) {
            Thread t = Executors.defaultThreadFactory().newThread(r);
            t.setDaemon(true);
            return t;
        }
    }, new ThreadPoolExecutor.DiscardPolicy());
    threadMgr.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
    threadMgr.setContinueExistingPeriodicTasksAfterShutdownPolicy(
            false);
    threadMgr.setKeepAliveTime(5000, TimeUnit.MILLISECONDS);
    threadMgr.allowCoreThreadTimeOut(true);
    responseCache = Cache.newSoftMemoryCache(
            cacheCapacity, cacheLifetime);
}