Token-Based Authentication

Jira code-NT-58

Step 1: Construct a Base String for the Signature
The first step in creating a signature is constructing a Base String. This is the only step in generating a signature which is different for web services and RESTlets.
Step 2: Signature Key
The signature key is used to sign the base string in the HMAC-SHA algorithm. The key is constructed from the URL-encoded values for consumer secret and token secret, with the ampersand character (&) as the delimiter.
Step 3: Signature
The signature is a base64 value of the HMAC-SHA, where the message is Base String and the key is the key from the previous step.
We can create a authentication header after we submit the given details
CONSUMER_KEY, CONSUMER_SECRET, TOKEN_ID, TOKEN_SECRET, SCRIPT_DEPLOYMENT_ID, OAUTH_NONCE, TIME_STAMP, OAUTH_VERSION, SCRIPT_ID, HTTP_METHOD, BASE_URL, NETSUITE_ACCOUNT_ID.

/*******************************************************************************
 * 
 * 
 * NetSuite Name :JJ SL TBA INTEGRATION SIGNATURE.JS
 *
 * ************************************************************
 * NT-58
 *  
 * $Author: Jobin & Jismi IT Services LLP $
 * 
 * 
 * 
 * 
 ******************************************************************************/
function main(req, res) {

    var frm = nlapiCreateForm("Generate Token Based Authentication Header for Restlet");
    if (req.method === "GET") {
        generateForm(frm);
    } else if (req.method === "POST") {
        var CONSUMER_KEY = req.getParameter('custpage_conskey');
        var CONSUMER_SECRET = req.getParameter('custpage_conssecret');
        var TOKEN_ID = req.getParameter('custpage_tokenid');
        var TOKEN_SECRET = req.getParameter('custpage_tokensecret');
        var SCRIPT_DEPLOYMENT_ID = req.getParameter('custpage_deploymentid');
        var OAUTH_NONCE = getNonce(32);
        var TIME_STAMP = Math.round(+new Date() / 1000);
        var OAUTH_VERSION = '1.0';
        var SCRIPT_ID = req.getParameter('custpage_scriptid');
        var HTTP_METHOD = req.getParameter('custpage_httpmethod').toUpperCase();
        var BASE_URL = req.getParameter('custpage_baseurl');
        var NETSUITE_ACCOUNT_ID = req.getParameter('custpage_accountid');
        var PARAMETER = req.getParameter('custpage_parameter');


        nlapiLogExecution('debug', 'CONSUMER_KEY', CONSUMER_KEY);
        nlapiLogExecution('debug', 'CONSUMER_SECRET', CONSUMER_SECRET);
        nlapiLogExecution('debug', 'TOKEN_ID', TOKEN_ID);
        nlapiLogExecution('debug', 'TOKEN_SECRET', TOKEN_SECRET);
        nlapiLogExecution('debug', 'SCRIPT_DEPLOYMENT_ID', SCRIPT_DEPLOYMENT_ID);
        nlapiLogExecution('debug', 'OAUTH_NONCE', OAUTH_NONCE);
        nlapiLogExecution('debug', 'TIME_STAMP', TIME_STAMP);
        nlapiLogExecution('debug', 'OAUTH_VERSION', OAUTH_VERSION);
        nlapiLogExecution('debug', 'SCRIPT_ID', SCRIPT_ID);
        nlapiLogExecution('debug', 'HTTP_METHOD', HTTP_METHOD);
        nlapiLogExecution('debug', 'BASE_URL', BASE_URL);
        nlapiLogExecution('debug', 'NETSUITE_ACCOUNT_ID', NETSUITE_ACCOUNT_ID);
        nlapiLogExecution('debug', 'PARAMETER', PARAMETER);

        generateForm(frm);

        var data = '';
        //data = data + 'count=5&';
        data = data + 'deploy=' + SCRIPT_DEPLOYMENT_ID + '&';
        data = data + 'oauth_consumer_key=' + CONSUMER_KEY + '&';
        data = data + 'oauth_nonce=' + OAUTH_NONCE + '&';
        data = data + 'oauth_signature_method=' + 'HMAC-SHA1' + '&';
        data = data + 'oauth_timestamp=' + TIME_STAMP + '&';
        data = data + 'oauth_token=' + TOKEN_ID + '&';
        data = data + 'oauth_version=' + OAUTH_VERSION + '&';
        data = data + 'script=' + SCRIPT_ID + '&';
        data = data + 'uniid=' + PARAMETER;
        //data = data + 'param=' + '4830';

        var encodedData = encodeURIComponent(data);
        var completeData = HTTP_METHOD + '&' + encodeURIComponent(BASE_URL) + '&' + encodedData;
        var hmacsha1Data = CryptoJS.HmacSHA1(completeData, CONSUMER_SECRET + '&' + TOKEN_SECRET);
        var base64EncodedData = CryptoJS.enc.Base64.stringify(hmacsha1Data);
        var oauth_signature = encodeURIComponent(base64EncodedData);

        var OAuth = 'OAuth oauth_signature="' + oauth_signature + '",';
        OAuth = OAuth + 'oauth_version="1.0",';
        OAuth = OAuth + 'oauth_nonce="' + OAUTH_NONCE + '",';
        OAuth = OAuth + 'oauth_signature_method="HMAC-SHA1",';
        OAuth = OAuth + 'oauth_consumer_key="' + CONSUMER_KEY + '",';
        OAuth = OAuth + 'oauth_token="' + TOKEN_ID + '",';
        OAuth = OAuth + 'oauth_timestamp="' + TIME_STAMP + '",';
        OAuth = OAuth + 'realm="' + NETSUITE_ACCOUNT_ID + '"';

        frm.addField('custpage_oauth', 'textarea', 'OAuth').setDefaultValue(OAuth);
    }
    res.writePage(frm);
}

//Get Unique Value to be pass in header
function getNonce(length) {
    var text = "";
    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    for (var i = 0; i < length; i++) {
        text += possible.charAt(Math.floor(Math.random() * possible.length));
    }
    return text;
}

//Adding Objects for Form
function generateForm(frm) {
    frm.addField('custpage_conskey', 'text', 'Consumer Key').setMandatory(true);
    frm.addField('custpage_conssecret', 'text', 'Consumer Secret').setMandatory(true);
    frm.addField('custpage_tokenid', 'text', 'Token Id').setMandatory(true);
    frm.addField('custpage_tokensecret', 'text', 'Token Secret').setMandatory(true);
    frm.addField('custpage_scriptid', 'text', 'Script Id').setMandatory(true);
    frm.addField('custpage_deploymentid', 'text', 'Deployment Id').setMandatory(true);
    frm.addField('custpage_httpmethod', 'text', 'Http Method').setMandatory(true);
    frm.addField('custpage_baseurl', 'text', 'Restlet Base URL').setMandatory(true);
    frm.addField('custpage_accountid', 'text', 'Account ID').setMandatory(true);
    frm.addField('custpage_parameter', 'text', 'Parameter')
    frm.addSubmitButton('Generate');
}
/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
var CryptoJS = CryptoJS || function(g, l) {
    var e = {},
        d = e.lib = {},
        m = function() {},
        k = d.Base = {
            extend: function(a) {
                m.prototype = this;
                var c = new m;
                a && c.mixIn(a);
                c.hasOwnProperty("init") || (c.init = function() { c.$super.init.apply(this, arguments) });
                c.init.prototype = c;
                c.$super = this;
                return c
            },
            create: function() {
                var a = this.extend();
                a.init.apply(a, arguments);
                return a
            },
            init: function() {},
            mixIn: function(a) {
                for (var c in a) a.hasOwnProperty(c) && (this[c] = a[c]);
                a.hasOwnProperty("toString") && (this.toString = a.toString)
            },
            clone: function() { return this.init.prototype.extend(this) }
        },
        p = d.WordArray = k.extend({
            init: function(a, c) {
                a = this.words = a || [];
                this.sigBytes = c != l ? c : 4 * a.length
            },
            toString: function(a) { return (a || n).stringify(this) },
            concat: function(a) {
                var c = this.words,
                    q = a.words,
                    f = this.sigBytes;
                a = a.sigBytes;
                this.clamp();
                if (f % 4)
                    for (var b = 0; b < a; b++) c[f + b >>> 2] |= (q[b >>> 2] >>> 24 - 8 * (b % 4) & 255) << 24 - 8 * ((f + b) % 4);
                else if (65535 < q.length)
                    for (b = 0; b < a; b += 4) c[f + b >>> 2] = q[b >>> 2];
                else c.push.apply(c, q);
                this.sigBytes += a;
                return this
            },
            clamp: function() {
                var a = this.words,
                    c = this.sigBytes;
                a[c >>> 2] &= 4294967295 <<
                    32 - 8 * (c % 4);
                a.length = g.ceil(c / 4)
            },
            clone: function() {
                var a = k.clone.call(this);
                a.words = this.words.slice(0);
                return a
            },
            random: function(a) { for (var c = [], b = 0; b < a; b += 4) c.push(4294967296 * g.random() | 0); return new p.init(c, a) }
        }),
        b = e.enc = {},
        n = b.Hex = {
            stringify: function(a) {
                var c = a.words;
                a = a.sigBytes;
                for (var b = [], f = 0; f < a; f++) {
                    var d = c[f >>> 2] >>> 24 - 8 * (f % 4) & 255;
                    b.push((d >>> 4).toString(16));
                    b.push((d & 15).toString(16))
                }
                return b.join("")
            },
            parse: function(a) {
                for (var c = a.length, b = [], f = 0; f < c; f += 2) b[f >>> 3] |= parseInt(a.substr(f,
                    2), 16) << 24 - 4 * (f % 8);
                return new p.init(b, c / 2)
            }
        },
        j = b.Latin1 = {
            stringify: function(a) {
                var c = a.words;
                a = a.sigBytes;
                for (var b = [], f = 0; f < a; f++) b.push(String.fromCharCode(c[f >>> 2] >>> 24 - 8 * (f % 4) & 255));
                return b.join("")
            },
            parse: function(a) { for (var c = a.length, b = [], f = 0; f < c; f++) b[f >>> 2] |= (a.charCodeAt(f) & 255) << 24 - 8 * (f % 4); return new p.init(b, c) }
        },
        h = b.Utf8 = { stringify: function(a) { try { return decodeURIComponent(escape(j.stringify(a))) } catch (c) { throw Error("Malformed UTF-8 data"); } }, parse: function(a) { return j.parse(unescape(encodeURIComponent(a))) } },
        r = d.BufferedBlockAlgorithm = k.extend({
            reset: function() {
                this._data = new p.init;
                this._nDataBytes = 0
            },
            _append: function(a) {
                "string" == typeof a && (a = h.parse(a));
                this._data.concat(a);
                this._nDataBytes += a.sigBytes
            },
            _process: function(a) {
                var c = this._data,
                    b = c.words,
                    f = c.sigBytes,
                    d = this.blockSize,
                    e = f / (4 * d),
                    e = a ? g.ceil(e) : g.max((e | 0) - this._minBufferSize, 0);
                a = e * d;
                f = g.min(4 * a, f);
                if (a) {
                    for (var k = 0; k < a; k += d) this._doProcessBlock(b, k);
                    k = b.splice(0, a);
                    c.sigBytes -= f
                }
                return new p.init(k, f)
            },
            clone: function() {
                var a = k.clone.call(this);
                a._data = this._data.clone();
                return a
            },
            _minBufferSize: 0
        });
    d.Hasher = r.extend({
        cfg: k.extend(),
        init: function(a) {
            this.cfg = this.cfg.extend(a);
            this.reset()
        },
        reset: function() {
            r.reset.call(this);
            this._doReset()
        },
        update: function(a) {
            this._append(a);
            this._process();
            return this
        },
        finalize: function(a) { a && this._append(a); return this._doFinalize() },
        blockSize: 16,
        _createHelper: function(a) { return function(b, d) { return (new a.init(d)).finalize(b) } },
        _createHmacHelper: function(a) {
            return function(b, d) {
                return (new s.HMAC.init(a,
                    d)).finalize(b)
            }
        }
    });
    var s = e.algo = {};
    return e
}(Math);
(function() {
    var g = CryptoJS,
        l = g.lib,
        e = l.WordArray,
        d = l.Hasher,
        m = [],
        l = g.algo.SHA1 = d.extend({
            _doReset: function() { this._hash = new e.init([1732584193, 4023233417, 2562383102, 271733878, 3285377520]) },
            _doProcessBlock: function(d, e) {
                for (var b = this._hash.words, n = b[0], j = b[1], h = b[2], g = b[3], l = b[4], a = 0; 80 > a; a++) {
                    if (16 > a) m[a] = d[e + a] | 0;
                    else {
                        var c = m[a - 3] ^ m[a - 8] ^ m[a - 14] ^ m[a - 16];
                        m[a] = c << 1 | c >>> 31
                    }
                    c = (n << 5 | n >>> 27) + l + m[a];
                    c = 20 > a ? c + ((j & h | ~j & g) + 1518500249) : 40 > a ? c + ((j ^ h ^ g) + 1859775393) : 60 > a ? c + ((j & h | j & g | h & g) - 1894007588) : c + ((j ^ h ^
                        g) - 899497514);
                    l = g;
                    g = h;
                    h = j << 30 | j >>> 2;
                    j = n;
                    n = c
                }
                b[0] = b[0] + n | 0;
                b[1] = b[1] + j | 0;
                b[2] = b[2] + h | 0;
                b[3] = b[3] + g | 0;
                b[4] = b[4] + l | 0
            },
            _doFinalize: function() {
                var d = this._data,
                    e = d.words,
                    b = 8 * this._nDataBytes,
                    g = 8 * d.sigBytes;
                e[g >>> 5] |= 128 << 24 - g % 32;
                e[(g + 64 >>> 9 << 4) + 14] = Math.floor(b / 4294967296);
                e[(g + 64 >>> 9 << 4) + 15] = b;
                d.sigBytes = 4 * e.length;
                this._process();
                return this._hash
            },
            clone: function() {
                var e = d.clone.call(this);
                e._hash = this._hash.clone();
                return e
            }
        });
    g.SHA1 = d._createHelper(l);
    g.HmacSHA1 = d._createHmacHelper(l)
})();
(function() {
    var g = CryptoJS,
        l = g.enc.Utf8;
    g.algo.HMAC = g.lib.Base.extend({
        init: function(e, d) {
            e = this._hasher = new e.init;
            "string" == typeof d && (d = l.parse(d));
            var g = e.blockSize,
                k = 4 * g;
            d.sigBytes > k && (d = e.finalize(d));
            d.clamp();
            for (var p = this._oKey = d.clone(), b = this._iKey = d.clone(), n = p.words, j = b.words, h = 0; h < g; h++) n[h] ^= 1549556828, j[h] ^= 909522486;
            p.sigBytes = b.sigBytes = k;
            this.reset()
        },
        reset: function() {
            var e = this._hasher;
            e.reset();
            e.update(this._iKey)
        },
        update: function(e) { this._hasher.update(e); return this },
        finalize: function(e) {
            var d =
                this._hasher;
            e = d.finalize(e);
            d.reset();
            return d.finalize(this._oKey.clone().concat(e))
        }
    })
})();

/*
CryptoJS v3.0.2
code.google.com/p/crypto-js
(c) 2009-2012 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
(function() {
    var h = CryptoJS,
        i = h.lib.WordArray;
    h.enc.Base64 = {
        stringify: function(b) {
            var e = b.words,
                f = b.sigBytes,
                c = this._map;
            b.clamp();
            for (var b = [], a = 0; a < f; a += 3)
                for (var d = (e[a >>> 2] >>> 24 - 8 * (a % 4) & 255) << 16 | (e[a + 1 >>> 2] >>> 24 - 8 * ((a + 1) % 4) & 255) << 8 | e[a + 2 >>> 2] >>> 24 - 8 * ((a + 2) % 4) & 255, g = 0; 4 > g && a + 0.75 * g < f; g++) b.push(c.charAt(d >>> 6 * (3 - g) & 63));
            if (e = c.charAt(64))
                for (; b.length % 4;) b.push(e);
            return b.join("")
        },
        parse: function(b) {
            var b = b.replace(/\s/g, ""),
                e = b.length,
                f = this._map,
                c = f.charAt(64);
            c && (c = b.indexOf(c), -1 != c && (e = c));
            for (var c = [], a = 0, d = 0; d < e; d++)
                if (d % 4) {
                    var g = f.indexOf(b.charAt(d - 1)) << 2 * (d % 4),
                        h = f.indexOf(b.charAt(d)) >>> 6 - 2 * (d % 4);
                    c[a >>> 2] |= (g | h) << 24 - 8 * (a % 4);
                    a++
                } return i.create(c, a)
        },
        _map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
    }
})();

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