Java Base64類代碼示例

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
/** Constructor to use when message contents are known */
NTLMMessage(final String messageBody, final int expectedType) throws NtlmEngineException {
    messageContents = Base64.decode(messageBody);
    // Look for NTLM message
    if (messageContents.length < SIGNATURE.length) {
        throw new NtlmEngineException("NTLM message decoding error - packet too short");
    }
    int i = 0;
    while (i < SIGNATURE.length) {
        if (messageContents[i] != SIGNATURE[i]) {
            throw new NtlmEngineException("NTLM message expected - instead got unrecognized bytes");
        }
        i++;
    }

    // Check to be sure there's a type 2 message indicator next
    final int type = readULong(SIGNATURE.length);
    if (type != expectedType) {
        throw new NtlmEngineException("NTLM type " + Integer.toString(expectedType) + " message expected - instead got type "
                + Integer.toString(type));
    }

    currentOutputPosition = messageContents.length;
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
@Test(expectedExceptions = NtlmEngineException.class)
public void testGenerateType3MsgThrowsExceptionWhenUnicodeSupportNotIndicated() {
    ByteBuf buf = Unpooled.directBuffer();
    buf.writeBytes("NTLMSSP".getBytes(StandardCharsets.US_ASCII));
    buf.writeByte(0);
    // type 2 indicator
    buf.writeByte(2).writeByte(0).writeByte(0).writeByte(0);
    buf.writeLong(1);
    // flags
    buf.writeByte(0);// unicode support indicator
    buf.writeByte(0).writeByte(0).writeByte(0);
    buf.writeLong(1);// challenge
    NtlmEngine engine = new NtlmEngine();
    engine.generateType3Msg("username", "passowrd", "localhost", "workstattion", Base64.encode(ByteBufUtils.byteBuf2Bytes(buf)));
    fail("An NtlmEngineException must have occurred as unicode support is not indicated");
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
@Test
public void testGenerateType3Msg() {
    ByteBuf buf = Unpooled.directBuffer();
    buf.writeBytes("NTLMSSP".getBytes(StandardCharsets.US_ASCII));
    buf.writeByte(0);
    // type 2 indicator
    buf.writeByte(2).writeByte(0).writeByte(0).writeByte(0);
    buf.writeLong(0);
    // flags
    buf.writeByte(1);// unicode support indicator
    buf.writeByte(0).writeByte(0).writeByte(0);
    buf.writeLong(1);// challenge
    NtlmEngine engine = new NtlmEngine();
    String type3Msg = engine.generateType3Msg("username", "passowrd", "localhost", "workstattion",
            Base64.encode(ByteBufUtils.byteBuf2Bytes(buf)));
    assertEquals(type3Msg,
            "TlRMTVNTUAADAAAAGAAYAEgAAAAYABgAYAAAABIAEgB4AAAAEAAQAIoAAAAYABgAmgAAAAAAAACyAAAAAQAAAgUBKAoAAAAPmr/wN76Y0WPoSFkHghgpi0yh7/UexwVlCeoo1CQEl9d2alfPRld8KYeOkS0GdTuMTABPAEMAQQBMAEgATwBTAFQAdQBzAGUAcgBuAGEAbQBlAHcAbwByAGsAcwB0AGEAdAB0AGkAbwBuAA==",
            "Incorrect type3 message generated");
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
/**
 * Returns the response that has been generated after shrinking the
 * array if required and base64 encodes the response.
 *
 * @return The response as above.
 */
String getResponse() {
    final byte[] resp;
    if (messageContents.length > currentOutputPosition) {
        final byte[] tmp = new byte[currentOutputPosition];
        System.arraycopy(messageContents, 0, tmp, 0, currentOutputPosition);
        resp = tmp;
    } else {
        resp = messageContents;
    }
    return Base64.encode(resp);
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
protected String generateNonce() {
        byte[] nonceBuffer = NONCE_BUFFER.get();
        ThreadLocalRandom.current().nextBytes(nonceBuffer);
        // let's use base64 encoding over hex, slightly more compact than hex or decimals
        return Base64.encode(nonceBuffer);
//      return String.valueOf(Math.abs(random.nextLong()));
    }
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
@Test(expectedExceptions = NtlmEngineException.class)
public void testGenerateType3MsgThworsExceptionWhenType2IndicatorNotPresent() {
    ByteBuf buf = Unpooled.directBuffer();
    buf.writeBytes("NTLMSSP".getBytes(StandardCharsets.US_ASCII));
    buf.writeByte(0);
    // type 2 indicator
    buf.writeByte(3).writeByte(0).writeByte(0).writeByte(0);
    buf.writeBytes("challenge".getBytes());
    NtlmEngine engine = new NtlmEngine();
    engine.generateType3Msg("username", "passowrd", "localhost", "workstation", Base64.encode(ByteBufUtils.byteBuf2Bytes(buf)));
    fail("An NtlmEngineException must have occurred as type 2 indicator is incorrect");
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
/**
 * Creates a new {@link InfluxDBClient} instance.
 *
 * @param config the configuratoon.
 */
public InfluxDBClient(InfluxDBMetricsConfig config) {
    this.config = config;

    DefaultAsyncHttpClientConfig.Builder builder = new DefaultAsyncHttpClientConfig.Builder();
    this.asyncHttpClient = new DefaultAsyncHttpClient(builder.build());
    this.bbos = new ByteBufferOutputStream(ByteBuffer.allocate(BUFFER_ALLOC));

    this.credentials = Base64.encode((config.getUsername() + ":" + config.getPassword()).getBytes());

    createDatabase(this.config.getDatabase());
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
/**
 * Get the hash encoding of a key string.
 *
 * @param key  The input string to encode.
 *
 * @return The hash encoding of the key as string. Returns null if the method fails to produce a hash.
 */
public String hash(String key) {
    try {
        MessageDigest md = MessageDigest.getInstance(algorithm);
        byte[] keyBytes = key.getBytes("UTF-8");
        md.update(keyBytes, 0, keyBytes.length);
        byte[] binaryhash = md.digest();
        return Base64.encode(binaryhash);
    } catch (Exception e) {
        LOG.warn("Failed to get hash encoding for key: {}", key, e);
        return key;
    }
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
public static String getKey() {
    byte[] nonce = createRandomBytes(16);
    return Base64.encode(nonce);
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
public static String getAcceptKey(String key) throws UnsupportedEncodingException {
    String acceptSeed = key + MAGIC_GUID;
    byte[] sha1 = sha1(acceptSeed.getBytes(US_ASCII));
    return Base64.encode(sha1);
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
@Test(expectedExceptions = NtlmEngineException.class)
public void testGenerateType3MsgThrowsExceptionWhenChallengeTooShort() {
    NtlmEngine engine = new NtlmEngine();
    engine.generateType3Msg("username", "passowrd", "localhost", "workstattion", Base64.encode("a".getBytes()));
    fail("An NtlmEngineException must have occurred as challenge length is too short");
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
@Test(expectedExceptions = NtlmEngineException.class)
public void testGenerateType3MsgThrowsExceptionWhenChallengeDoesNotFollowCorrectFormat() {
    NtlmEngine engine = new NtlmEngine();
    engine.generateType3Msg("username", "passowrd", "localhost", "workstattion", Base64.encode("challenge".getBytes()));
    fail("An NtlmEngineException must have occurred as challenge format is not correct");
}
 

import org.asynchttpclient.util.Base64; //導入依賴的package包/類
/**
 * Method for calculating OAuth signature using HMAC/SHA-1 method.
 * 
 * @param method the request methode
 * @param uri the request Uri
 * @param oauthTimestamp the timestamp
 * @param nonce the nonce
 * @param formParams the formParams
 * @param queryParams the query params
 * @return the signature
 */
public String calculateSignature(String method, Uri uri, long oauthTimestamp, String nonce,
                                 List<Param> formParams, List<Param> queryParams) {

    StringBuilder sb = signatureBaseString(method, uri, oauthTimestamp, nonce, formParams, queryParams);

    ByteBuffer rawBase = StringUtils.charSequence2ByteBuffer(sb, UTF_8);
    byte[] rawSignature = mac.digest(rawBase);
    // and finally, base64 encoded... phew!
    return Base64.encode(rawSignature);
}