Example usage for java.net Proxy Proxy

List of usage examples for java.net Proxy Proxy

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Introduction

In this page you can find the example usage for java.net Proxy Proxy.

Prototype

public Proxy(Type type, SocketAddress sa)

Source Link

Document

Creates an entry representing a PROXY connection.

Usage

From source file:org.apache.nifi.processors.standard.util.FTPTransfer.java

private FTPClient getClient(final FlowFile flowFile) throws IOException {
    if (client != null) {
        String desthost = ctx.getProperty(HOSTNAME).evaluateAttributeExpressions(flowFile).getValue();
        if (remoteHostName.equals(desthost)) {
            // destination matches so we can keep our current session
            resetWorkingDirectory();/*from  ww w. jav a2 s.c o m*/
            return client;
        } else {
            // this flowFile is going to a different destination, reset session
            close();
        }
    }

    final Proxy.Type proxyType = Proxy.Type.valueOf(ctx.getProperty(PROXY_TYPE).getValue());
    final String proxyHost = ctx.getProperty(PROXY_HOST).getValue();
    final Integer proxyPort = ctx.getProperty(PROXY_PORT).asInteger();
    FTPClient client;
    if (proxyType == Proxy.Type.HTTP) {
        client = new FTPHTTPClient(proxyHost, proxyPort, ctx.getProperty(HTTP_PROXY_USERNAME).getValue(),
                ctx.getProperty(HTTP_PROXY_PASSWORD).getValue());
    } else {
        client = new FTPClient();
        if (proxyType == Proxy.Type.SOCKS) {
            client.setSocketFactory(new SocksProxySocketFactory(
                    new Proxy(proxyType, new InetSocketAddress(proxyHost, proxyPort))));
        }
    }
    this.client = client;
    client.setDataTimeout(ctx.getProperty(DATA_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    client.setDefaultTimeout(
            ctx.getProperty(CONNECTION_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    client.setRemoteVerificationEnabled(false);

    final String remoteHostname = ctx.getProperty(HOSTNAME).evaluateAttributeExpressions(flowFile).getValue();
    this.remoteHostName = remoteHostname;
    InetAddress inetAddress = null;
    try {
        inetAddress = InetAddress.getByAddress(remoteHostname, null);
    } catch (final UnknownHostException uhe) {
    }

    if (inetAddress == null) {
        inetAddress = InetAddress.getByName(remoteHostname);
    }

    client.connect(inetAddress, ctx.getProperty(PORT).evaluateAttributeExpressions(flowFile).asInteger());
    this.closed = false;
    client.setDataTimeout(ctx.getProperty(DATA_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    client.setSoTimeout(ctx.getProperty(CONNECTION_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());

    final String username = ctx.getProperty(USERNAME).evaluateAttributeExpressions(flowFile).getValue();
    final String password = ctx.getProperty(PASSWORD).evaluateAttributeExpressions(flowFile).getValue();
    final boolean loggedIn = client.login(username, password);
    if (!loggedIn) {
        throw new IOException("Could not login for user '" + username + "'");
    }

    final String connectionMode = ctx.getProperty(CONNECTION_MODE).getValue();
    if (connectionMode.equalsIgnoreCase(CONNECTION_MODE_ACTIVE)) {
        client.enterLocalActiveMode();
    } else {
        client.enterLocalPassiveMode();
    }

    final String transferMode = ctx.getProperty(TRANSFER_MODE).getValue();
    final int fileType = (transferMode.equalsIgnoreCase(TRANSFER_MODE_ASCII)) ? FTPClient.ASCII_FILE_TYPE
            : FTPClient.BINARY_FILE_TYPE;
    if (!client.setFileType(fileType)) {
        throw new IOException("Unable to set transfer mode to type " + transferMode);
    }

    this.homeDirectory = client.printWorkingDirectory();
    return client;
}

From source file:com.clickha.nifi.processors.util.FTPTransferV2.java

private FTPClient getClient(final FlowFile flowFile) throws IOException {
    if (client != null) {
        String desthost = ctx.getProperty(HOSTNAME).evaluateAttributeExpressions(flowFile).getValue();
        if (remoteHostName.equals(desthost)) {
            // destination matches so we can keep our current session
            resetWorkingDirectory();//ww  w . j a v  a 2 s  .c o  m
            return client;
        } else {
            // this flowFile is going to a different destination, reset session
            close();
        }
    }

    final Proxy.Type proxyType = Proxy.Type.valueOf(ctx.getProperty(PROXY_TYPE).getValue());
    final String proxyHost = ctx.getProperty(PROXY_HOST).getValue();
    final Integer proxyPort = ctx.getProperty(PROXY_PORT).asInteger();
    FTPClient client;
    if (proxyType == Proxy.Type.HTTP) {
        client = new FTPHTTPClient(proxyHost, proxyPort, ctx.getProperty(HTTP_PROXY_USERNAME).getValue(),
                ctx.getProperty(HTTP_PROXY_PASSWORD).getValue());
    } else {
        client = new FTPClient();
        if (proxyType == Proxy.Type.SOCKS) {
            client.setSocketFactory(new SocksProxySocketFactory(
                    new Proxy(proxyType, new InetSocketAddress(proxyHost, proxyPort))));
        }
    }
    this.client = client;
    client.setDataTimeout(ctx.getProperty(DATA_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    client.setDefaultTimeout(
            ctx.getProperty(CONNECTION_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    client.setRemoteVerificationEnabled(false);

    final String remoteHostname = ctx.getProperty(HOSTNAME).evaluateAttributeExpressions(flowFile).getValue();
    this.remoteHostName = remoteHostname;
    InetAddress inetAddress = null;
    try {
        inetAddress = InetAddress.getByAddress(remoteHostname, null);
    } catch (final UnknownHostException uhe) {
    }

    if (inetAddress == null) {
        inetAddress = InetAddress.getByName(remoteHostname);
    }

    client.connect(inetAddress, ctx.getProperty(PORT).evaluateAttributeExpressions(flowFile).asInteger());
    this.closed = false;
    client.setDataTimeout(ctx.getProperty(DATA_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    client.setSoTimeout(ctx.getProperty(CONNECTION_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());

    final String username = ctx.getProperty(USERNAME).evaluateAttributeExpressions(flowFile).getValue();
    final String password = ctx.getProperty(PASSWORD).evaluateAttributeExpressions(flowFile).getValue();
    final boolean loggedIn = client.login(username, password);
    if (!loggedIn) {
        throw new IOException("Could not login for user '" + username + "'");
    }

    final String connectionMode = ctx.getProperty(CONNECTION_MODE).getValue();
    if (connectionMode.equalsIgnoreCase(CONNECTION_MODE_ACTIVE)) {
        client.enterLocalActiveMode();
    } else {
        client.enterLocalPassiveMode();
    }

    // additional  
    FTPClientConfig ftpConfig = new FTPClientConfig(FTPClientConfig.SYST_UNIX);
    final String ftpClientConfig = ctx.getProperty(FTP_CLIENT_CONFIG_SYST).getValue();
    if (ftpClientConfig.equalsIgnoreCase(FTP_CLIENT_CONFIG_SYST_UNIX)) {
        this.ftpConfig = ftpConfig;
        client.configure(ftpConfig);
    } else if (ftpClientConfig.equalsIgnoreCase(FTP_CLIENT_CONFIG_SYST_NT)) {
        this.ftpConfig = ftpConfig;
        client.configure(ftpConfig);
    }

    final String transferMode = ctx.getProperty(TRANSFER_MODE).getValue();
    final int fileType = (transferMode.equalsIgnoreCase(TRANSFER_MODE_ASCII)) ? FTPClient.ASCII_FILE_TYPE
            : FTPClient.BINARY_FILE_TYPE;
    if (!client.setFileType(fileType)) {
        throw new IOException("Unable to set transfer mode to type " + transferMode);
    }

    this.homeDirectory = client.printWorkingDirectory();
    return client;
}

From source file:org.broad.igv.util.HttpUtils.java

/**
 * The "real" connection method//from  w w w.j a  v  a 2  s.c  o m
 *
 * @param url
 * @param requestProperties
 * @param method
 * @return
 * @throws java.io.IOException
 */
private HttpURLConnection openConnection(URL url, Map<String, String> requestProperties, String method,
        int redirectCount) throws IOException {

    //Encode query string portions
    url = StringUtils.encodeURLQueryString(url);
    if (log.isTraceEnabled()) {
        log.trace(url);
    }

    //Encode base portions. Right now just spaces, most common case
    //TODO This is a hack and doesn't work for all characters which need it
    if (StringUtils.countChar(url.toExternalForm(), ' ') > 0) {
        String newPath = url.toExternalForm().replaceAll(" ", "%20");
        url = new URL(newPath);
    }

    Proxy sysProxy = null;
    boolean igvProxySettingsExist = proxySettings != null && proxySettings.useProxy;
    //Only check for system proxy if igv proxy settings not found
    if (!igvProxySettingsExist) {
        sysProxy = getSystemProxy(url.toExternalForm());
    }
    boolean useProxy = sysProxy != null || igvProxySettingsExist;

    HttpURLConnection conn;
    if (useProxy) {
        Proxy proxy = sysProxy;
        if (igvProxySettingsExist) {
            if (proxySettings.type == Proxy.Type.DIRECT) {
                proxy = Proxy.NO_PROXY;
            } else {
                proxy = new Proxy(proxySettings.type,
                        new InetSocketAddress(proxySettings.proxyHost, proxySettings.proxyPort));
            }
        }
        conn = (HttpURLConnection) url.openConnection(proxy);

        if (igvProxySettingsExist && proxySettings.auth && proxySettings.user != null
                && proxySettings.pw != null) {
            byte[] bytes = (proxySettings.user + ":" + proxySettings.pw).getBytes();

            String encodedUserPwd = String.valueOf(Base64Coder.encode(bytes));
            conn.setRequestProperty("Proxy-Authorization", "Basic " + encodedUserPwd);
        }
    } else {
        conn = (HttpURLConnection) url.openConnection();
    }

    if (GSUtils.isGenomeSpace(url)) {
        conn.setRequestProperty("Accept", "application/json,text/plain");
    } else {
        conn.setRequestProperty("Accept", "text/plain");
    }

    //------//
    //There seems to be a bug with JWS caches
    //So we avoid caching

    //This default is persistent, really should be available statically but isn't
    conn.setDefaultUseCaches(false);
    conn.setUseCaches(false);
    //------//

    conn.setConnectTimeout(Globals.CONNECT_TIMEOUT);
    conn.setReadTimeout(Globals.READ_TIMEOUT);
    conn.setRequestMethod(method);
    conn.setRequestProperty("Connection", "Keep-Alive");
    if (requestProperties != null) {
        for (Map.Entry<String, String> prop : requestProperties.entrySet()) {
            conn.setRequestProperty(prop.getKey(), prop.getValue());
        }
    }
    conn.setRequestProperty("User-Agent", Globals.applicationString());

    if (method.equals("PUT")) {
        return conn;
    } else {

        int code = conn.getResponseCode();

        if (log.isDebugEnabled()) {
            //logHeaders(conn);
        }

        // Redirects.  These can occur even if followRedirects == true if there is a change in protocol,
        // for example http -> https.
        if (code >= 300 && code < 400) {

            if (redirectCount > MAX_REDIRECTS) {
                throw new IOException("Too many redirects");
            }

            String newLocation = conn.getHeaderField("Location");
            log.debug("Redirecting to " + newLocation);

            return openConnection(new URL(newLocation), requestProperties, method, redirectCount++);
        }

        // TODO -- handle other response codes.
        else if (code >= 400) {

            String message;
            if (code == 404) {
                message = "File not found: " + url.toString();
                throw new FileNotFoundException(message);
            } else if (code == 401) {
                // Looks like this only happens when user hits "Cancel".
                // message = "Not authorized to view this file";
                // JOptionPane.showMessageDialog(null, message, "HTTP error", JOptionPane.ERROR_MESSAGE);
                redirectCount = MAX_REDIRECTS + 1;
                return null;
            } else {
                message = conn.getResponseMessage();
            }
            String details = readErrorStream(conn);
            log.error("URL: " + url.toExternalForm() + ". error stream: " + details);
            log.error("Code: " + code + ". " + message);
            HttpResponseException exc = new HttpResponseException(code);
            throw exc;
        }
    }
    return conn;
}

From source file:org.apache.nifi.processors.standard.InvokeHTTP.java

@OnScheduled
public void setUpClient(final ProcessContext context) throws IOException {
    okHttpClientAtomicReference.set(null);

    OkHttpClient okHttpClient = new OkHttpClient();

    // Add a proxy if set
    final String proxyHost = context.getProperty(PROP_PROXY_HOST).getValue();
    final Integer proxyPort = context.getProperty(PROP_PROXY_PORT).asInteger();
    if (proxyHost != null && proxyPort != null) {
        final Proxy proxy = new Proxy(Type.HTTP, new InetSocketAddress(proxyHost, proxyPort));
        okHttpClient.setProxy(proxy);//www .j a v  a  2s.c om
    }

    // Set timeouts
    okHttpClient.setConnectTimeout(
            (context.getProperty(PROP_CONNECT_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue()),
            TimeUnit.MILLISECONDS);
    okHttpClient.setReadTimeout(
            context.getProperty(PROP_READ_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue(),
            TimeUnit.MILLISECONDS);

    // Set whether to follow redirects
    okHttpClient.setFollowRedirects(context.getProperty(PROP_FOLLOW_REDIRECTS).asBoolean());

    final SSLContextService sslService = context.getProperty(PROP_SSL_CONTEXT_SERVICE)
            .asControllerService(SSLContextService.class);
    final SSLContext sslContext = sslService == null ? null : sslService.createSSLContext(ClientAuth.NONE);

    // check if the ssl context is set and add the factory if so
    if (sslContext != null) {
        okHttpClient.setSslSocketFactory(sslContext.getSocketFactory());
    }

    // check the trusted hostname property and override the HostnameVerifier
    String trustedHostname = trimToEmpty(context.getProperty(PROP_TRUSTED_HOSTNAME).getValue());
    if (!trustedHostname.isEmpty()) {
        okHttpClient.setHostnameVerifier(
                new OverrideHostnameVerifier(trustedHostname, okHttpClient.getHostnameVerifier()));
    }

    setAuthenticator(okHttpClient, context);

    useChunked = context.getProperty(PROP_USE_CHUNKED_ENCODING).asBoolean();

    okHttpClientAtomicReference.set(okHttpClient);
}

From source file:ca.mymenuapp.ui.debug.DebugAppContainer.java

private void showNewNetworkProxyDialog(final ProxyAdapter proxyAdapter) {
    final int originalSelection = networkProxy.isSet() ? ProxyAdapter.PROXY : ProxyAdapter.NONE;

    View view = LayoutInflater.from(app).inflate(R.layout.debug_drawer_network_proxy, null);
    final EditText host = findById(view, R.id.debug_drawer_network_proxy_host);

    new AlertDialog.Builder(activity) //
            .setTitle("Set Network Proxy").setView(view)
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override/*from www  . j  a  v a2 s  .c o  m*/
                public void onClick(DialogInterface dialog, int i) {
                    networkProxyView.setSelection(originalSelection);
                    dialog.cancel();
                }
            }).setPositiveButton("Use", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int i) {
                    String theHost = host.getText().toString();
                    if (!Strings.isBlank(theHost)) {
                        String[] parts = theHost.split(":", 2);
                        SocketAddress address = InetSocketAddress.createUnresolved(parts[0],
                                Integer.parseInt(parts[1]));

                        networkProxy.set(theHost); // Persist across restarts.
                        proxyAdapter.notifyDataSetChanged(); // Tell the spinner to update.
                        networkProxyView.setSelection(ProxyAdapter.PROXY); // And show the proxy.

                        client.setProxy(new Proxy(HTTP, address));
                    } else {
                        networkProxyView.setSelection(originalSelection);
                    }
                }
            }).setOnCancelListener(new DialogInterface.OnCancelListener() {
                @Override
                public void onCancel(DialogInterface dialogInterface) {
                    networkProxyView.setSelection(originalSelection);
                }
            }).show();
}

From source file:org.eclipse.mylyn.commons.net.WebUtil.java

/**
 * @since 3.1/*from  w ww  .  ja  v a 2 s. com*/
 */
public static Proxy createProxy(String proxyHost, int proxyPort, AuthenticationCredentials credentials) {
    String proxyUsername = ""; //$NON-NLS-1$
    String proxyPassword = ""; //$NON-NLS-1$
    if (credentials != null) {
        proxyUsername = credentials.getUserName();
        proxyPassword = credentials.getPassword();
    }
    if (proxyHost != null && proxyHost.length() > 0) {
        InetSocketAddress sockAddr = new InetSocketAddress(proxyHost, proxyPort);
        boolean authenticated = (proxyUsername != null && proxyPassword != null && proxyUsername.length() > 0
                && proxyPassword.length() > 0);
        if (authenticated) {
            return new AuthenticatedProxy(Type.HTTP, sockAddr, proxyUsername, proxyPassword);
        } else {
            return new Proxy(Type.HTTP, sockAddr);
        }
    }
    return Proxy.NO_PROXY;
}

From source file:com.lastdaywaiting.example.kalkan.service.SecureManager.java

/**
 *  CRL- ? ,    ? ? ,  ? ?/*  ww  w .  java  2 s . c o m*/
 *   ? 
 *
 * @param crlName
 */
private void loadCrlObject(String crlName) {
    TypeOfCrlLoaded oldState = MAP_OF_LOAD_CRL_LABEL.get(crlName);
    if (TypeOfCrlLoaded.LOADING.equals(oldState)) {
        return;
    }
    MAP_OF_LOAD_CRL_LABEL.put(crlName, TypeOfCrlLoaded.LOADING);
    String location = MAP_OF_CRL_PATH.get(crlName);
    try {
        URL url = new URL(location);
        HttpURLConnection conn = null;
        if (useProxy) {
            Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyAddress, proxyPort));
            conn = (HttpURLConnection) url.openConnection(proxy);
        } else {
            conn = (HttpURLConnection) url.openConnection();
        }
        conn.setUseCaches(false);
        conn.setDoInput(true);
        conn.connect();
        if (conn.getResponseCode() == 200) {
            CertificateFactory cf = CertificateFactory.getInstance("X.509", "KALKAN");
            X509CRL crlObject = (X509CRL) cf.generateCRL(conn.getInputStream());
            MAP_OF_XCRL.put(crlName, crlObject);
        } else {
            String msg = "(1) ? CRL- : '" + location + "' : "
                    + conn.getResponseCode() + " ,  " + conn.getResponseMessage();
            log.warning(msg);
        }
    } catch (Exception e) {
        String msg = "(1) ? CRL- : '" + location + "' : "
                + e.getMessage();
        log.warning(msg);
    }
    //MAP_OF_LOAD_CRL_LABEL.put(crlName, oldState ) ;
    MAP_OF_LOAD_CRL_TIME.put(crlName, new Date());
    MAP_OF_LOAD_CRL_LABEL.put(crlName, TypeOfCrlLoaded.LOADED);
}

From source file:net.sf.jsignpdf.BasicSignerOptions.java

/**
 * Creates and returns Proxy object, which should be used for URL
 * connections in JSignPdf.//from  w  w  w .ja v  a 2 s .  c  o m
 * 
 * @return initialized Proxy object.
 */
public Proxy createProxy() {
    Proxy tmpResult = Proxy.NO_PROXY;
    if (isAdvanced() && getProxyType() != Proxy.Type.DIRECT) {
        tmpResult = new Proxy(getProxyType(), new InetSocketAddress(getProxyHost(), getProxyPort()));
    }
    return tmpResult;
}

From source file:com.opentok.test.OpenTokTest.java

@Test
public void testCreateSessionWithProxy() throws OpenTokException, UnknownHostException {
    WireMockConfiguration proxyConfig = WireMockConfiguration.wireMockConfig();
    proxyConfig.dynamicPort();//w w w  .ja  va2  s  .  co  m
    WireMockServer proxyingService = new WireMockServer(proxyConfig);
    proxyingService.start();
    WireMock proxyingServiceAdmin = new WireMock(proxyingService.port());

    String targetServiceBaseUrl = "http://localhost:" + wireMockRule.port();
    proxyingServiceAdmin.register(
            any(urlMatching(".*")).atPriority(10).willReturn(aResponse().proxiedFrom(targetServiceBaseUrl)));

    String sessionId = "SESSIONID";
    Proxy proxy = new Proxy(Proxy.Type.HTTP,
            new InetSocketAddress(InetAddress.getLocalHost(), proxyingService.port()));

    sdk = new OpenTok(apiKey, apiSecret, apiUrl, proxy);
    stubFor(post(urlEqualTo("/session/create")).willReturn(aResponse().withStatus(200)
            .withHeader("Content-Type", "text/xml")
            .withBody("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><sessions><Session><"
                    + "session_id>" + sessionId + "</session_id><partner_id>123456</partner_id><create_dt>"
                    + "Mon Mar 17 00:41:31 PDT 2014</create_dt></Session></sessions>")));

    Session session = sdk.createSession();

    assertNotNull(session);
    assertEquals(this.apiKey, session.getApiKey());
    assertEquals(sessionId, session.getSessionId());

    verify(postRequestedFor(urlMatching("/session/create")));

    Helpers.verifyPartnerAuth(this.apiKey, this.apiSecret);
    Helpers.verifyUserAgent();

}

From source file:fur.shadowdrake.minecraft.InstallPanel.java

public boolean downloadMojangLauncher() {
    URL u;/* w ww. j a va  2s .c o m*/
    HttpURLConnection connection;
    Proxy p;
    InputStream is;
    FileOutputStream fos;

    if (new File(config.getInstallDir(), "Minecraft.jar").isFile()) {
        return true;
    }

    log.println("Connecting to Mojang server...");
    if (config.getHttpProxy().isEmpty()) {
        p = Proxy.NO_PROXY;
    } else {
        Authenticator.setDefault(new Authenticator() {
            @Override
            public PasswordAuthentication getPasswordAuthentication() {
                if (getRequestorType() == Authenticator.RequestorType.PROXY) {
                    return config.getHttpProxyCredentials();
                } else {
                    return super.getPasswordAuthentication();
                }
            }
        });
        p = new Proxy(Proxy.Type.HTTP, new ProxyAddress(config.getHttpProxy(), 3128).getSockaddr());
    }
    try {
        u = new URL("https://s3.amazonaws.com/Minecraft.Download/launcher/Minecraft.jar");
        connection = (HttpURLConnection) u.openConnection(p);
        connection.addRequestProperty("User-agent", "Minecraft Bootloader");
        connection.setUseCaches(false);
        connection.setDefaultUseCaches(false);
        connection.setConnectTimeout(10000);
        connection.setReadTimeout(10000);
        connection.connect();
        log.println("Mojang server returned " + connection.getResponseMessage());
        if (connection.getResponseCode() != 200) {
            connection.disconnect();
            return false;
        }
    } catch (MalformedURLException ex) {
        Logger.getLogger(InstallPanel.class.getName()).log(Level.SEVERE, null, ex);
        return false;
    } catch (IOException ex) {
        Logger.getLogger(InstallPanel.class.getName()).log(Level.SEVERE, null, ex);
        log.println("Connection to Mojang server failed.");
        return false;
    }

    try {
        is = connection.getInputStream();
        fos = new FileOutputStream(new File(config.getInstallDir(), "Minecraft.jar"));
        log.println("Downloading Minecraft.jar");
        byte[] buffer = new byte[4096];
        for (int n = is.read(buffer); n > 0; n = is.read(buffer)) {
            fos.write(buffer, 0, n);
        }
        fos.close();
        is.close();
        connection.disconnect();
        log.println("Done.");
    } catch (IOException ex) {
        Logger.getLogger(InstallPanel.class.getName()).log(Level.SEVERE, "downloadMojangLauncher", ex);
        log.println("Faild to save file.");
        return false;
    }
    return true;
}