Example usage for java.util.zip Inflater finished

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Usage

From source file:ch.cern.security.saml2.utils.xml.XMLUtils.java

public static String xmlDecodeAndInflate(String encodedXmlString, boolean isDebugEnabled)
        throws UnsupportedEncodingException, DataFormatException {

    // URL decode
    // No need to URL decode: auto decoded by request.getParameter() method (GET)

    if (isDebugEnabled)
        nc.notice("Encoded XML String: " + encodedXmlString);

    // Base64 decode
    Base64 base64Decoder = new Base64();
    byte[] xmlBytes = encodedXmlString.getBytes("UTF-8");
    byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);

    if (isDebugEnabled)
        nc.notice("Base64 decoded bytes: " + new String(base64DecodedByteArray, "UTF-8"));

    // Inflate (uncompress) the AuthnRequest data
    // First attempt to unzip the byte array according to DEFLATE (rfc 1951)
    Inflater inflater = new Inflater(true);
    inflater.setInput(base64DecodedByteArray);
    // since we are decompressing, it's impossible to know how much space we
    // might need; hopefully this number is suitably big
    byte[] xmlMessageBytes = new byte[5000];
    int resultLength = inflater.inflate(xmlMessageBytes);

    if (!inflater.finished()) {
        throw new RuntimeException("didn't allocate enough space to hold " + "decompressed data");
    }/*from  w  w  w  .  jav a2s  . c o m*/

    inflater.end();

    String decodedString = new String(xmlMessageBytes, 0, resultLength, "UTF-8");

    if (isDebugEnabled)
        nc.notice("Decoded and inflated string (UTF-8): " + new String(base64DecodedByteArray));

    return decodedString;
}

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From source file:edu.stanford.junction.addon.JSONObjWrapper.java

private static String decompressString(String str) {
    byte[] compressedData = Base64.decode(str);
    // Create the decompressor and give it the data to compress 
    Inflater decompressor = new Inflater();
    decompressor.setInput(compressedData);
    // Create an expandable byte array to hold the decompressed data 
    ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedData.length);
    // Decompress the data 
    byte[] buf = new byte[1024];
    while (!decompressor.finished()) {
        try {//from  ww  w. j a  va 2  s.  c  om
            int count = decompressor.inflate(buf);
            bos.write(buf, 0, count);
        } catch (DataFormatException e) {
        }
    }

    try {
        bos.close();
    } catch (IOException e) {
    }

    // Get the decompressed data 
    byte[] decompressedData = bos.toByteArray();
    try {
        return new String(decompressedData, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        return new String(decompressedData);
    }
}

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From source file:org.jasig.cas.util.CompressionUtils.java

/**
 * Inflate the given byte array by {@link #INFLATED_ARRAY_LENGTH}.
 *
 * @param bytes the bytes/* w w  w  .j a  v a2 s .  co m*/
 * @return the array as a string with <code>UTF-8</code> encoding
 */
public static String inflate(final byte[] bytes) {
    final Inflater inflater = new Inflater(true);
    final byte[] xmlMessageBytes = new byte[INFLATED_ARRAY_LENGTH];
    final byte[] extendedBytes = new byte[bytes.length + 1];
    System.arraycopy(bytes, 0, extendedBytes, 0, bytes.length);
    extendedBytes[bytes.length] = 0;
    inflater.setInput(extendedBytes);
    try {
        final int resultLength = inflater.inflate(xmlMessageBytes);
        inflater.end();
        if (!inflater.finished()) {
            throw new RuntimeException("Buffer not large enough.");
        }
        inflater.end();
        return new String(xmlMessageBytes, 0, resultLength, UTF8_ENCODING);
    } catch (final DataFormatException e) {
        LOGGER.error("Data format is not supported", e);
        return null;
    } catch (final UnsupportedEncodingException e) {
        throw new RuntimeException("Cannot find encoding:" + UTF8_ENCODING, e);
    }
}

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From source file:org.ow2.proactive.utils.ObjectByteConverter.java

/**
 * Convert the given byte array into the corresponding object.
 * <p>/* ww  w . j av  a2s. c om*/
 * The given byteArray can be uncompressed if it has been compressed before.
 * 
 * @param input the byteArray to be convert as an object.
 * @param uncompress true if the given byteArray must be also uncompressed, false if no compression was made on it.
 * @return the object corresponding to the given byteArray.
 * @throws IOException if an I/O exception occurs when writing the returned object
 * @throws ClassNotFoundException if class represented by given byteArray is not found.
 */
public static Object byteArrayToObject(byte[] input, boolean uncompress)
        throws IOException, ClassNotFoundException {
    if (input == null) {
        return null;
    }
    if (uncompress) {
        // Uncompress the bytes
        Inflater decompressor = new Inflater();
        decompressor.setInput(input);

        ByteArrayOutputStream bos = null;
        try {
            // Create an expandable byte array to hold the compressed data.
            bos = new ByteArrayOutputStream();
            // Compress the data
            byte[] buf = new byte[512];
            while (!decompressor.finished()) {
                int count = decompressor.inflate(buf);
                bos.write(buf, 0, count);
            }
            decompressor.end();
            // set the UNCOMPRESSED data
            input = bos.toByteArray();
        } catch (DataFormatException dfe) {
            //convert into io exception to fit previous behavior
            throw new IOException("Compressed data format is invalid : " + dfe.getMessage(), dfe);
        } finally {
            if (bos != null) {
                bos.close();
            }
        }
    }
    //here, input byteArray is uncompressed if needed
    ByteArrayInputStream bais = null;
    ObjectInputStream ois = null;
    try {
        bais = new ByteArrayInputStream(input);
        ois = new ObjectInputStream(bais);
        return ois.readObject();
    } finally {
        if (ois != null) {
            ois.close();
        }
        if (bais != null) {
            bais.close();
        }
    }
}

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From source file:edu.umn.msi.tropix.proteomics.conversion.impl.ConversionUtils.java

public static byte[] decompress(byte[] compressedData) {
    byte[] decompressedData;

    // using a ByteArrayOutputStream to not having to define the result array size beforehand
    Inflater decompressor = new Inflater();

    decompressor.setInput(compressedData);
    // Create an expandable byte array to hold the decompressed data
    ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedData.length);
    byte[] buf = new byte[1024];
    while (!decompressor.finished()) {
        try {//from  w  w w .  j a  v  a  2s  .com
            int count = decompressor.inflate(buf);
            if (count == 0 && decompressor.needsInput()) {
                break;
            }
            bos.write(buf, 0, count);
        } catch (DataFormatException e) {
            throw new IllegalStateException(
                    "Encountered wrong data format " + "while trying to decompress binary data!", e);
        }
    }
    try {
        bos.close();
    } catch (IOException e) {
        // ToDo: add logging
        e.printStackTrace();
    }
    // Get the decompressed data
    decompressedData = bos.toByteArray();

    if (decompressedData == null) {
        throw new IllegalStateException("Decompression of binary data produced no result (null)!");
    }
    return decompressedData;
}

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From source file:org.atricore.idbus.capabilities.sso.main.binding.SamlR2HttpRedirectBinding.java

public static String inflateFromRedirect(String redirStr, boolean decode) throws Exception {

    if (redirStr == null || redirStr.length() == 0) {
        throw new RuntimeException("Redirect string cannot be null or empty");
    }/*from w  w w  .  ja  va  2 s.co  m*/

    byte[] redirBin = null;
    if (decode)
        redirBin = new Base64().decode(removeNewLineChars(redirStr).getBytes());
    else
        redirBin = redirStr.getBytes();

    // Decompress the bytes
    Inflater inflater = new Inflater(true);
    inflater.setInput(redirBin);

    ByteArrayOutputStream baos = new ByteArrayOutputStream(8192);

    try {
        int resultLength = 0;
        int buffSize = 1024;
        byte[] buff = new byte[buffSize];
        while (!inflater.finished()) {
            resultLength = inflater.inflate(buff);
            baos.write(buff, 0, resultLength);
        }

    } catch (DataFormatException e) {
        throw new RuntimeException("Cannot inflate SAML message : " + e.getMessage(), e);
    }

    inflater.end();

    // Decode the bytes into a String
    String outputString = null;
    try {
        outputString = new String(baos.toByteArray(), "UTF-8");
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException("Cannot convert byte array to string " + e.getMessage(), e);
    }
    return outputString;
}

---

From source file:org.wso2.identity.integration.test.requestPathAuthenticator.SAMLWithRequestPathAuthenticationTest.java

/**
 * Decoding and deflating the encoded AuthReq
 *
 * @param encodedStr encoded AuthReq/*from w  ww .ja v  a  2 s .  c  o  m*/
 * @return decoded AuthReq
 */
private static String decode(String encodedStr) {
    try {
        Base64 base64Decoder = new Base64();
        byte[] xmlBytes = encodedStr.getBytes(DEFAULT_CHARSET);
        byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);

        try {
            Inflater inflater = new Inflater(true);
            inflater.setInput(base64DecodedByteArray);
            byte[] xmlMessageBytes = new byte[5000];
            int resultLength = inflater.inflate(xmlMessageBytes);

            if (!inflater.finished()) {
                throw new RuntimeException("End of the compressed data stream has NOT been reached");
            }

            inflater.end();
            return new String(xmlMessageBytes, 0, resultLength, (DEFAULT_CHARSET));

        } catch (DataFormatException e) {
            ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(base64DecodedByteArray);
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            InflaterInputStream iis = new InflaterInputStream(byteArrayInputStream);
            byte[] buf = new byte[1024];
            int count = iis.read(buf);
            while (count != -1) {
                byteArrayOutputStream.write(buf, 0, count);
                count = iis.read(buf);
            }
            iis.close();

            return new String(byteArrayOutputStream.toByteArray(), StandardCharsets.UTF_8);
        }
    } catch (IOException e) {
        Assert.fail("Error while decoding SAML response", e);
        return "";
    }
}

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From source file:org.wso2.carbon.identity.auth.saml2.common.SAML2AuthUtils.java

public static String decodeForRedirect(String encodedStr) throws IdentityRuntimeException {
    try {// ww w  . j  a v  a2 s.  c  o  m
        if (logger.isDebugEnabled()) {
            logger.debug(" >> encoded string in the SSOUtils/decode : " + encodedStr);
        }
        org.apache.commons.codec.binary.Base64 base64Decoder = new org.apache.commons.codec.binary.Base64();
        byte[] xmlBytes = encodedStr.getBytes("UTF-8");
        byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);

        try {
            //TODO if the request came in POST, inflating is wrong
            Inflater inflater = new Inflater(true);
            inflater.setInput(base64DecodedByteArray);
            byte[] xmlMessageBytes = new byte[5000];
            int resultLength = inflater.inflate(xmlMessageBytes);

            if (!inflater.finished()) {
                throw new RuntimeException("End of the compressed data stream has NOT been reached");
            }

            inflater.end();
            String decodedString = new String(xmlMessageBytes, 0, resultLength, "UTF-8");
            if (logger.isDebugEnabled()) {
                logger.debug("Request message " + decodedString);
            }
            return decodedString;

        } catch (DataFormatException e) {
            ByteArrayInputStream bais = new ByteArrayInputStream(base64DecodedByteArray);
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            InflaterInputStream iis = new InflaterInputStream(bais);
            byte[] buf = new byte[1024];
            int count = iis.read(buf);
            while (count != -1) {
                baos.write(buf, 0, count);
                count = iis.read(buf);
            }
            iis.close();
            String decodedStr = new String(baos.toByteArray(), Charset.forName("UTF-8"));
            if (logger.isDebugEnabled()) {
                logger.debug("Request message " + decodedStr);
            }
            return decodedStr;
        }
    } catch (IOException e) {
        throw new IdentityRuntimeException("Error when decoding the SAML Request.", e);
    }
}

---

From source file:org.wso2.carbon.appfactory.apiManager.integration.utils.Utils.java

public static String decode(String encodedStr) throws AppFactoryException {
    try {/*w w w.  j a v a  2  s  . co  m*/
        org.apache.commons.codec.binary.Base64 base64Decoder = new org.apache.commons.codec.binary.Base64();
        byte[] xmlBytes = encodedStr.getBytes("UTF-8");
        byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);

        try {
            Inflater inflater = new Inflater(true);
            inflater.setInput(base64DecodedByteArray);
            byte[] xmlMessageBytes = new byte[5000];
            int resultLength = inflater.inflate(xmlMessageBytes);

            if (!inflater.finished()) {
                throw new RuntimeException("didn't allocate enough space to hold " + "decompressed data");
            }

            inflater.end();
            return new String(xmlMessageBytes, 0, resultLength, "UTF-8");

        } catch (DataFormatException e) {
            ByteArrayInputStream bais = new ByteArrayInputStream(base64DecodedByteArray);
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            InflaterInputStream iis = new InflaterInputStream(bais);
            byte[] buf = new byte[1024];
            int count = iis.read(buf);
            while (count != -1) {
                baos.write(buf, 0, count);
                count = iis.read(buf);
            }
            iis.close();

            return new String(baos.toByteArray());
        }
    } catch (IOException e) {
        throw new AppFactoryException("Error when decoding the SAML Request.", e);
    }

}

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From source file:org.jasig.cas.authentication.principal.GoogleAccountsService.java

private static String inflate(final byte[] bytes) {
    final Inflater inflater = new Inflater(true);
    final byte[] xmlMessageBytes = new byte[10000];

    final byte[] extendedBytes = new byte[bytes.length + 1];
    System.arraycopy(bytes, 0, extendedBytes, 0, bytes.length);
    extendedBytes[bytes.length] = 0;/*w w w. java  2s . co  m*/

    inflater.setInput(extendedBytes);

    try {
        final int resultLength = inflater.inflate(xmlMessageBytes);
        inflater.end();

        if (!inflater.finished()) {
            throw new RuntimeException("buffer not large enough.");
        }

        inflater.end();
        return new String(xmlMessageBytes, 0, resultLength, "UTF-8");
    } catch (final DataFormatException e) {
        return null;
    } catch (final UnsupportedEncodingException e) {
        throw new RuntimeException("Cannot find encoding: UTF-8", e);
    }
}

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