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Single Sign on with the JavaScript SDK

BookingBug single sign-on (SSO) enables you to use the existing authentication on your website with a booking widget, avoiding the need for customers to enter another password when they want to view, modify or cancel their bookings. You will need a BookingBug affiliate account to obtain a secure key to use for the SSO token generation.

The typical method for using the single sign-on token is to wrap the widget with a member-sso-login directive:

<div member-sso-login="{Generated SSO Token}">
  <div bb-widget="{company_id: '{Your Company ID}'}"></div>
</div>

You will need to generate the SSO token server side. Then print this to the DOM as the value of the member-sso-login attribute.

The API Settings under BookingBug Advanced Settings can be used to generate a secure key for use with SSO token generation.

#!/usr/bin/env ruby

require 'rubygems'
require 'ezcrypto'
require 'json'
require 'cgi'
require 'time'

module BookingBug
  class TokenGenerator
    attr_accessor :data
    attr_accessor :options

    BOOKINGBUG_COMPANY_ID = "{Your Company ID or Affiliate ID}"
    BOOKINGBUG_SECURE_KEY = "{Your Secure Key}"

    def initialize(options = {})
      options.merge!({:expires => (Time.now + 3600).iso8601})
      key = EzCrypto::Key.with_password BOOKINGBUG_COMPANY_ID, BOOKINGBUG_SECURE_KEY
      @data = key.encrypt64(options.to_json).gsub(/\n/,'')
      @data = CGI.escape(@data)
    end

    def to_s
      @data
    end

    def decrypt
      key = EzCrypto::Key.with_password BOOKINGBUG_COMPANY_ID, BOOKINGBUG_SECURE_KEY
      key.decrypt64(CGI.unescape(@data))
    end
  end
end

token = BookingBug::TokenGenerator.new({
  'first_name' => 'John',
  'email' => 'smith@example.com',
  'last_name' => 'Smith',
  'mobile' => '0123456789'
})

puts token.to_s
package com.bookingbug;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;
import java.text.SimpleDateFormat;

import javax.crypto.Cipher;
import javax.crypto.CipherOutputStream;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.net.URLCodec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang3.time.DateUtils;
import org.json.simple.JSONObject;


/**
 * Singleton class for creating a BookingBug SSO Token. See {@link #main(String[])} for usage example.
 * Requires commons-codec library {@link http://commons.apache.org/codec/}.
 */
public class TokenGenerator {
  private static final String COMPANY_ID = "{Your Company ID or Affiliate ID}";
  private static final String SECURE_KEY = "{Your Secure Key}";
  private static final byte[] INIT_VECTOR = "OpenSSL for Ruby".getBytes();  
  private SecretKeySpec secretKeySpec;
  private IvParameterSpec ivSpec;
  private URLCodec urlCodec = new URLCodec("ASCII");
  private Base64 base64 = new Base64();
  private static TokenGenerator INSTANCE = new TokenGenerator();

  public static TokenGenerator getInstance() {
    if (INSTANCE == null) {
      INSTANCE = new TokenGenerator();
    }
    return INSTANCE;
  }

  private TokenGenerator() {
    String salted = SECURE_KEY + COMPANY_ID;
    byte[] hash = DigestUtils.sha(salted);
    byte[] saltedHash = new byte[16];
    System.arraycopy(hash, 0, saltedHash, 0, 16);

    secretKeySpec = new SecretKeySpec(saltedHash, "AES");
    ivSpec = new IvParameterSpec(INIT_VECTOR);
  }

  private void encrypt(InputStream in, OutputStream out) throws Exception {
    try {
      byte[] buf = new byte[1024];

      Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
      cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivSpec);

      out = new CipherOutputStream(out, cipher);

      int numRead = 0;
      while ((numRead = in.read(buf)) >= 0) {
        out.write(buf, 0, numRead);
      }
      out.close();
    } catch (InvalidKeyException e) {
      e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    } catch (NoSuchPaddingException e) {
      e.printStackTrace();
    } catch (InvalidAlgorithmParameterException e) {
      e.printStackTrace();
    } catch (java.io.IOException e) {
      e.printStackTrace();
    }
  }

  public String create(JSONObject json) throws Exception {
    Date expires = DateUtils.addHours(new Date(), 1);
    json.put("expires", new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss").format(expires));
    byte[] data = json.toString().getBytes();

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    for (int i = 0; i < 16; i++) {
      data[i] ^= INIT_VECTOR[i];
    }
    encrypt(new ByteArrayInputStream(data), out);

    String token = new String(urlCodec.encode(base64.encode(out.toByteArray())));
    return token;
  }    

  public static void main(String[] args) {
    try {
      JSONObject jsonObj = new JSONObject();
      jsonObj.put("first_name", "John");
      jsonObj.put("last_name", "Smith");
      jsonObj.put("email", "smith@example.com");
      jsonObj.put("mobile", "0123456789");

      System.out.println( TokenGenerator.getInstance().create(jsonObj) );

    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}
namespace BookingBug {
  public class TokenGenerator {
    public static string create(JsonObject data) { 
      string CompanyId = "{Your Company ID or Affiliate ID}";
      string SecureKey = "{Your Secure Key}";        
      string initVector = "OpenSSL for Ruby"; // DO NOT CHANGE

      string expires = DateTime.UtcNow.AddHours(1).ToString("yyyy-MM-ddTHH:mm:ssZ");
      data["expires"] = expires;

      byte[] initVectorBytes = Encoding.UTF8.GetBytes(initVector);
      byte[] keyBytesLong;
      using( SHA1CryptoServiceProvider sha = new SHA1CryptoServiceProvider() ) {
        keyBytesLong = sha.ComputeHash( Encoding.UTF8.GetBytes( SecureKey + CompanyId ) );
      }
      byte[] keyBytes = new byte[16];
      Array.Copy(keyBytesLong, keyBytes, 16);

      byte[] textBytes = Encoding.UTF8.GetBytes(data.ToString());
      for (int i = 0; i < 16; i++) {
        textBytes[i] ^= initVectorBytes[i];
      }

      // Encrypt the string to an array of bytes
      byte[] encrypted = encryptStringToBytes_AES(textBytes, keyBytes, initVectorBytes);
      string encoded = Convert.ToBase64String(encrypted);    
      return HttpUtility.UrlEncode(encoded);
    }

    static byte[] encryptStringToBytes_AES(byte[] textBytes, byte[] Key, byte[] IV) {
      // Declare the stream used to encrypt to an in memory
      // array of bytes and the RijndaelManaged object
      // used to encrypt the data.
      using( MemoryStream msEncrypt = new MemoryStream() )
      using( RijndaelManaged aesAlg = new RijndaelManaged() )
      {
        // Provide the RijndaelManaged object with the specified key and IV.
        aesAlg.Mode = CipherMode.CBC;
        aesAlg.Padding = PaddingMode.PKCS7;
        aesAlg.KeySize = 128;
        aesAlg.BlockSize = 128;
        aesAlg.Key = Key;
        aesAlg.IV = IV;
        // Create an encrytor to perform the stream transform.
        ICryptoTransform encryptor = aesAlg.CreateEncryptor();

        // Create the streams used for encryption.
        using( CryptoStream csEncrypt = new CryptoStream( msEncrypt, encryptor, CryptoStreamMode.Write ) ) {
          csEncrypt.Write( textBytes, 0, textBytes.Length );
          csEncrypt.FlushFinalBlock();
        }

        byte[] encrypted = msEncrypt.ToArray(); 
        // Return the encrypted bytes from the memory stream.
        return encrypted;
      }
    }   
  }
}

class MainClass
{
    static void Main(string[] args)
    {
        JsonObject jsonObject = new JsonObject();
        jsonObject["first_name"] = "John";
        jsonObject["last_name"] = "Smith";
        jsonObject["email"] = "smith@example.com";
        jsonObject["mobile"] = "0123456789";
        System.Console.WriteLine(BookingBug.TokenGenerator.create(jsonObject));
    }
}