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  4. Generating a signature and expires in java

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Generating a signature and expires in java

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  • TRich50
    TRich50 last edited by Dec 7, 2012, 1:42 PM

    Hello,

    I am developing a tool for my company to get stats from SeoMoz using your API.  During development, I have been using the example signature and expires values which are auto-generated for me.  Now that testing is complete, my code will need to generate these values.  I have been googling looking for a resource demonstrating how to do this using Java, but I have not found a good example.  I was hoping that someone at SeoMoz would have a resource or an example that they could share.

    The email associated with this account belongs to a non-developer, so if a response is provided via email in addition to the forum, sending it to my email would be much appreciated.

    Thank you,

    Anthony

    aruffino@ignitemedia.com

    1 Reply Last reply Reply Quote 0
    • TRich50
      TRich50 last edited by Dec 14, 2012, 10:44 PM Dec 14, 2012, 10:44 PM

      Never mind,  I have come up with a solution:

      package com.yourpackage.signature;

      import java.io.IOException;
      import java.security.InvalidKeyException;
      import java.security.NoSuchAlgorithmException;
      import java.util.Date;

      import javax.crypto.Mac;
      import javax.crypto.spec.SecretKeySpec;

      import org.apache.geronimo.mail.util.Base64; //can be whichever flavor of encoder you'd like

      public class SignatureGenerator {

      public static final String ACCESS_ID = "member-XXXXXXX";
          public static final String SECRET_KEY = "XXXXXXXXXXXXXXXXXXXXXXXXXXx";

      //expireTime should be in seconds since Jan 1 1970 : new Date().getTime()/1000) + X
          public static String generateSignature(String data, String key, String expireTime, String algorithm)
                  throws InvalidKeyException, NoSuchAlgorithmException, IOException {

      data += expireTime;

      byte[] hmacData = null;

      SecretKeySpec secretKey = new SecretKeySpec(key.getBytes("UTF-8"),
                          algorithm);
                  Mac mac = Mac.getInstance(algorithm);
                  mac.init(secretKey);
                  hmacData = mac.doFinal(data.getBytes("UTF-8"));

      String encoded = new String(Base64.encode(hmacData));

      return encoded;
          }

      public static void main(String[] args) {
              try {

      Long longTime = new Long(new Date().getTime()/1000) + 60;

      System.out.println(longTime);

      String data = ACCESS_ID + "\n";

      System.out.println(generateSignature(data, SECRET_KEY, String.valueOf(longTime), "HMACSHA1"));
              } catch (Exception e) {
                  e.printStackTrace();
              }

      }

      }

      1 Reply Last reply Reply Quote 0
      • TRich50
        TRich50 last edited by Dec 14, 2012, 9:05 PM Dec 14, 2012, 9:05 PM

        There has been no response from SeoMoz on this forum or to my email.

        Please provide some feedback.  I am afraid If I cannot solve this issue I will be forced to cancel our account as it is not practical for me to manually load the sample signature and expired value on a daily basis.

        1 Reply Last reply Reply Quote 0
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