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16 package org.roller.presentation.atomapi;
17
18 import java.io.IOException  ;
19 import java.io.UnsupportedEncodingException ;
20 import java.security.MessageDigest ;
21 import java.security.NoSuchAlgorithmException ;
22 import java.text.SimpleDateFormat ;
23 import java.util.Date ;
24
25 import org.apache.commons.codec.binary.Base64;
26
27
31 public class WSSEUtilities {
32 public static synchronized String generateDigest(
33 byte[] nonce, byte[] created, byte[] password) {
34 String result = null;
35 try {
36 MessageDigest digester = MessageDigest.getInstance("SHA");
37 digester.reset();
38 digester.update(nonce);
39 digester.update(created);
40 digester.update(password);
41 byte[] digest = digester.digest();
42 result = new String (base64Encode(digest));
43 }
44 catch (NoSuchAlgorithmException e) {
45 result = null;
46 }
47 return result;
48 }
49 public static byte[] base64Decode(String value) throws IOException {
50 return Base64.decodeBase64(value.getBytes("UTF-8"));
51 }
52 public static String base64Encode(byte[] value) {
53 return new String (Base64.encodeBase64(value));
54 }
55 public static String generateWSSEHeader(String userName, String password)
56 throws UnsupportedEncodingException {
57
58 byte[] nonceBytes = Long.toString(new Date ().getTime()).getBytes();
59 String nonce = new String (WSSEUtilities.base64Encode(nonceBytes));
60
61 SimpleDateFormat sdf = new SimpleDateFormat ("yyyy-MM-dd'T'HH:mm:ss'Z'");
62 String created = sdf.format(new Date ());
63
64 String digest = WSSEUtilities.generateDigest(
65 nonceBytes, created.getBytes("UTF-8"), password.getBytes("UTF-8"));
66
67 StringBuffer header = new StringBuffer ("UsernameToken Username=\"");
68 header.append(userName);
69 header.append("\", ");
70 header.append("PasswordDigest=\"");
71 header.append(digest);
72 header.append("\", ");
73 header.append("Nonce=\"");
74 header.append(nonce);
75 header.append("\", ");
76 header.append("Created=\"");
77 header.append(created);
78 header.append("\"");
79 return header.toString();
80 }
81 }
82 |
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