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1private JSONObject getAuthenticatedData() throws NoSuchAlgorithmException
2    {
3        try {
4            String timestamp= Instant.now().getEpochSecond()+"";
5            String accessSign = getAccess(timestamp);
6
7            String apiKey = properties.getProperty("key");
8            String passphrase = properties.getProperty("passphrase");
9            System.out.println("$: "+accessSign);
10
11            URL url = new URL("https://" + properties.getProperty("host") + "/accounts");
12            HttpURLConnection con = (HttpURLConnection) url.openConnection();
13            con.setRequestMethod("GET");
14
15            con.setRequestProperty("CB-ACCESS-KEY", apiKey);
16            con.setRequestProperty("CB-ACCESS-SIGN", accessSign);
17            con.setRequestProperty("CB-ACCESS-PASSPHRASE", passphrase);
18            con.setRequestProperty("CB-ACCESS-TIMESTAMP", timestamp);
19            con.setRequestProperty("Content-Type", "application/json");
20
21            con.setConnectTimeout(5000);
22            con.setReadTimeout(5000);
23
24            String status = con.getResponseMessage();
25            System.out.println(status);
26
27            BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
28            String inputLine;
29            StringBuffer content = new StringBuffer();
30            while ((inputLine = in.readLine()) != null) {
31                content.append(inputLine);
32            }
33            System.out.println(content);
34            in.close();
35
36            con.disconnect();
37        }catch(Exception e) {
38            e.printStackTrace();
39        }
40
41        return null;
42
43    }
44
45    private String getAccess(String timestamp) throws NoSuchAlgorithmException, InvalidKeyException {
46        String secret = properties.getProperty("secret");
47        String prehash = timestamp+"GET"+"/accounts";
48
49        Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
50        byte[] secretDecoded = Base64.getDecoder().decode(secret);
51        SecretKeySpec secret_key = new SecretKeySpec(secretDecoded, "HmacSHA256");
52        sha256_HMAC.init(secret_key);
53
54        return Base64.getEncoder().encodeToString(sha256_HMAC.doFinal(prehash.getBytes()));
55    }