Difference between revisions of "Template:Json API HMAC Block- Java"

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public static void generateHmacHeaders(HttpURLConnection connection) throws Exception {
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    public static void generateHmacHeaders(HttpURLConnection connection) throws Exception
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     {
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     final SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss (z)"); <span style="color:green">// Create the date string</span>
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        final SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss (z)"); <span style="color:green">// Create the date string</span>
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    d.setTimeZone(TimeZone.getTimeZone("GMT"));
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        d.setTimeZone(TimeZone.getTimeZone("GMT"));
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    final String timestampString = d.format(new Date());
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        final String timestampString = d.format(new Date());
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        final String message = applicationId + ":" + applicationPassword + ":" + timestampString;<span style="color:green">// Create the message</span>
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    final String message = applicationId + ":" + applicationPassword + ":" + timestampString;<span style="color:green">// Create the message</span>
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        final String auth = "HMAC " + hmacSha1ToBase64(message, apiSecret); <span style="color:green">// Create the authorization hash</span>
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        connection.setRequestProperty("updox-timestamp", timestampString);  <span style="color:green">// Set the request headers</span>
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    final String auth = "HMAC " + hmacSha1ToBase64(message, apiSecret); <span style="color:green">// Create the authorization hash</span>
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        connection.setRequestProperty("Authorization", auth);
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     }
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    connection.setRequestProperty("updox-timestamp", timestampString);  <span style="color:green">// Set the request headers</span>
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    connection.setRequestProperty("Authorization", auth);
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}
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public static String hmacSha1ToBase64(String value, String key) throws Exception{
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     byte[] keyBytes = key.getBytes();<span style="color:green">// Get an hmac_sha1 key from the raw key bytes</span>
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    SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA1");
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    Mac mac = Mac.getInstance("HmacSHA1"); <span style="color:green">// Get an hmac_sha1 Mac instance and initialize with the signing key</span>
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    mac.init(signingKey);
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    byte[] rawHmac = mac.doFinal(value.getBytes());<span style="color:green">// Compute the hmac on input data bytes</span>
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    byte[] base64Bytes = Base64.encodeBase64(rawHmac);<span style="color:green">// Convert raw bytes to Hex</span>
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    return new String(base64Bytes, "UTF-8");<span style="color:green">// Covert array of Hex bytes to a String</span>
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}
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Revision as of 16:08, 27 November 2013

   public static void generateHmacHeaders(HttpURLConnection connection) throws Exception
   {
       final SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss (z)"); // Create the date string
       d.setTimeZone(TimeZone.getTimeZone("GMT"));
       final String timestampString = d.format(new Date());
       final String message = applicationId + ":" + applicationPassword + ":" + timestampString;// Create the message
       final String auth = "HMAC " + hmacSha1ToBase64(message, apiSecret); // Create the authorization hash
       connection.setRequestProperty("updox-timestamp", timestampString);  // Set the request headers
       connection.setRequestProperty("Authorization", auth);
   }
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