Netsuite token based authentication - Java
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.swing.text.Document;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.*;
import java.security.GeneralSecurityException;
public class Main {
private static final String ALPHA_NUMERIC_STRING = "2312312312312sadadadadNKSNSKMSLMXSX";
static String OAuth ="null";
public static void main(String[] args) {
try {
String oauth_val = mediate();
URL url = new URL("https://rest.na1.netsuite.com/app/site/hosting/restlet.nl?script=325&deploy=1");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Authorization",oauth_val);
conn.setRequestProperty("Content-Type","application/json");
if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
}
conn.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static String randomAlphaNumeric(int count) {
StringBuilder builder = new StringBuilder();
while (count-- != 0) {
int character = (int)(Math.random()*ALPHA_NUMERIC_STRING.length());
builder.append(ALPHA_NUMERIC_STRING.charAt(character));
}
return builder.toString();
}
private static String computeSignature(String baseString, String keyString) throws GeneralSecurityException, UnsupportedEncodingException {
final String EMPTY_STRING = "";
final String CARRIAGE_RETURN = "\r\n";
final String UTF8 = "UTF-8";
String HMAC_SHA1 = "HmacSHA1";
SecretKeySpec key = new SecretKeySpec(keyString.getBytes(UTF8), HMAC_SHA1);
Mac mac = Mac.getInstance(HMAC_SHA1);
mac.init(key);
byte[] bytes = mac.doFinal(baseString.getBytes(UTF8));
String base= bytesToBase64String(bytes).replace(CARRIAGE_RETURN, EMPTY_STRING);
return URLEncoder.encode(base, "UTF-8");
}
private static String bytesToBase64String(byte[] bytes) {
return Base64Encoder.getInstance().encode(bytes);
}
public static String mediate() {
try {
String BASE_URL = "https://rest.na1.netsuite.com/app/site/hosting/restlet.nl";
String HTTP_METHOD = "GET";
String TOKEN_ID = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String TOKEN_SECRET = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String CONSUMER_KEY = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String CONSUMER_SECRET = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String SIGNATURE_METHOD = "HMAC-SHA1";
String OAUTH_NONCE = randomAlphaNumeric(20);
String TIME_STAMP = String.valueOf(System.currentTimeMillis() / 1000);
String OAUTH_VERSION = "1.0";
String SCRIPT_DEPLOYMENT_ID = "xxx";
String SCRIPT_ID = "xxx";
String REALM= "xxxxx";
Document xmldoc = null;
String data = "";
data = data + "deploy=" + SCRIPT_DEPLOYMENT_ID + "&";
data = data + "oauth_consumer_key=" + CONSUMER_KEY + "&";
data = data + "oauth_nonce=" + OAUTH_NONCE + "&";
data = data + "oauth_signature_method=" + SIGNATURE_METHOD +"&";
data = data + "oauth_timestamp=" + TIME_STAMP + "&";
data = data + "oauth_token=" + TOKEN_ID + "&";
data = data + "oauth_version=" + OAUTH_VERSION + "&";
data = data + "script=" + SCRIPT_ID;
String encodedData = encode(data);
System.out.println("This is the Encoded Data.... : "+ encodedData);
String completeData = HTTP_METHOD + "&" + encode(BASE_URL) + "&"+ encodedData;
System.out.println("This is the completeData.... : "+ completeData);
String key ="";
key = encode(CONSUMER_SECRET) + "&" + encode(TOKEN_SECRET);
System.out.println("This is the constructed key.... : "+ key);
String signature= computeSignature(completeData,key);
OAuth = "OAuth realm=\"" + REALM + "\",";
OAuth = OAuth + "oauth_consumer_key=\""+ CONSUMER_KEY + "\",";
OAuth = OAuth + "oauth_token=\"" + TOKEN_ID + "\",";
OAuth = OAuth + "oauth_signature_method=\"HMAC-SHA1\",";
OAuth = OAuth + "oauth_timestamp=\"" + TIME_STAMP + "\",";
OAuth = OAuth + "oauth_nonce=\"" + OAUTH_NONCE + "\",";
OAuth = OAuth + "oauth_version=\"" + "1.0" + "\",";
OAuth = OAuth + "oauth_signature=\"" + signature + "\"";
return OAuth;
} catch (UnsupportedEncodingException | GeneralSecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "error";
}
private static String encode(String value) {
String encoded = "";
try {
encoded = URLEncoder.encode(value, "UTF-8");
} catch (Exception e) {
e.printStackTrace();
}
String sb = "";
char focus;
for (int i = 0; i < encoded.length(); i++) {
focus = encoded.charAt(i);
if (focus == '*') {
sb += "%2A";
} else if (focus == '+') {
sb += "%20";
} else if (focus == '%' && i + 1 < encoded.length()
&& encoded.charAt(i + 1) == '7' && encoded.charAt(i + 2) == 'E') {
sb += '~';
i += 2;
} else {
sb += focus;
}
}
return sb.toString();
}
}
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