nl.nn.adapterframework.extensions.akamai

Class NetStorageUtils

java.lang.Object

nl.nn.adapterframework.extensions.akamai.NetStorageUtils

public class NetStorageUtils
extends Object

General utility functions needed to implement the HTTP SDK. Many of these functions are also available as standard parts of other libraries, but this package strives to operate without any external dependencies.

Author:

colinb@akamai.com (Colin Bendell)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NetStorageUtils.KeyedHashAlgorithm An enum of the keyed-hash algorithms supported by computeKeyedHash(byte[], String, nl.nn.adapterframework.extensions.akamai.NetStorageUtils.KeyedHashAlgorithm) Currently supported hashes include HMAC-MD5; HMAC-SHA1; HMAC-SHA256 The string representation matches the java Mac.getInstance(String)} cononical names.

Constructor Summary

Constructors

Constructor and Description
NetStorageUtils()

Method Summary

Modifier and Type	Method and Description
static byte[]	computeKeyedHash(byte[] data, String key, NetStorageUtils.KeyedHashAlgorithm hashType) Computes the HMAC hash of a given byte[].
static String	convertMapAsQueryParams(Map<String,String> data) Convert Map into a name=value query params string.
static String	encodeBase64(byte[] value) Base64-encode a byte array.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NetStorageUtils

public NetStorageUtils()

Method Detail

computeKeyedHash

public static byte[] computeKeyedHash(byte[] data,
                                      String key,
                                      NetStorageUtils.KeyedHashAlgorithm hashType)

Computes the HMAC hash of a given byte[]. This is a wrapper over the Mac crypto functions.

Parameters:

data - byte[] of content to hash

key - secret key to salt the hash

hashType - determines which alogirthm to use. The recommendation is to use HMAC-SHA256

Returns:

a byte[] presenting the HMAC hash of the source data.

encodeBase64

public static String encodeBase64(byte[] value)

Base64-encode a byte array.

Parameters:

value - byte array to encode.

Returns:

Encoded string.

convertMapAsQueryParams

public static String convertMapAsQueryParams(Map<String,String> data)

Convert Map into a name=value query params string.

NB: This uses URLEncoding - not URI Encoding for escaping name and values. This shouldn't be an issue for most uses of this function for the Netstorage API, but could impact non-ascii usernames in the future.

Parameters:

data - a Key-Value map

Returns:

a query params encoded string in the form of name=value&name2=value2...