// Load modules

var Url = require('url');
var Code = require('code');
var Hawk = require('../lib');
var Lab = require('lab');


// Declare internals

var internals = {};


// Test shortcuts

var lab = exports.lab = Lab.script();
var describe = lab.experiment;
var it = lab.test;
var expect = Code.expect;


describe('Hawk', function () {

    describe('client', function () {

        describe('#header', function () {

            it('returns a valid authorization header (sha1)', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var header = Hawk.client.header('http://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, ext: 'Bazinga!', timestamp: 1353809207, nonce: 'Ygvqdz', payload: 'something to write about' }).field;
                expect(header).to.equal('Hawk id="123456", ts="1353809207", nonce="Ygvqdz", hash="bsvY3IfUllw6V5rvk4tStEvpBhE=", ext="Bazinga!", mac="qbf1ZPG/r/e06F4ht+T77LXi5vw="');
                done();
            });

            it('returns a valid authorization header (sha256)', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha256'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, ext: 'Bazinga!', timestamp: 1353809207, nonce: 'Ygvqdz', payload: 'something to write about', contentType: 'text/plain' }).field;
                expect(header).to.equal('Hawk id="123456", ts="1353809207", nonce="Ygvqdz", hash="2QfCt3GuY9HQnHWyWD3wX68ZOKbynqlfYmuO2ZBRqtY=", ext="Bazinga!", mac="q1CwFoSHzPZSkbIvl0oYlD+91rBUEvFk763nMjMndj8="');
                done();
            });

            it('returns a valid authorization header (no ext)', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha256'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, timestamp: 1353809207, nonce: 'Ygvqdz', payload: 'something to write about', contentType: 'text/plain' }).field;
                expect(header).to.equal('Hawk id="123456", ts="1353809207", nonce="Ygvqdz", hash="2QfCt3GuY9HQnHWyWD3wX68ZOKbynqlfYmuO2ZBRqtY=", mac="HTgtd0jPI6E4izx8e4OHdO36q00xFCU0FolNq3RiCYs="');
                done();
            });

            it('returns a valid authorization header (null ext)', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha256'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, timestamp: 1353809207, nonce: 'Ygvqdz', payload: 'something to write about', contentType: 'text/plain', ext: null }).field;
                expect(header).to.equal('Hawk id="123456", ts="1353809207", nonce="Ygvqdz", hash="2QfCt3GuY9HQnHWyWD3wX68ZOKbynqlfYmuO2ZBRqtY=", mac="HTgtd0jPI6E4izx8e4OHdO36q00xFCU0FolNq3RiCYs="');
                done();
            });

            it('returns a valid authorization header (empty payload)', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha256'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, timestamp: 1353809207, nonce: 'Ygvqdz', payload: '', contentType: 'text/plain' }).field;
                expect(header).to.equal('Hawk id=\"123456\", ts=\"1353809207\", nonce=\"Ygvqdz\", hash=\"q/t+NNAkQZNlq/aAD6PlexImwQTxwgT2MahfTa9XRLA=\", mac=\"U5k16YEzn3UnBHKeBzsDXn067Gu3R4YaY6xOt9PYRZM=\"');
                done();
            });

            it('returns a valid authorization header (pre hashed payload)', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha256'
                };

                var options = { credentials: credentials, timestamp: 1353809207, nonce: 'Ygvqdz', payload: 'something to write about', contentType: 'text/plain' };
                options.hash = Hawk.crypto.calculatePayloadHash(options.payload, credentials.algorithm, options.contentType);
                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', options).field;
                expect(header).to.equal('Hawk id="123456", ts="1353809207", nonce="Ygvqdz", hash="2QfCt3GuY9HQnHWyWD3wX68ZOKbynqlfYmuO2ZBRqtY=", mac="HTgtd0jPI6E4izx8e4OHdO36q00xFCU0FolNq3RiCYs="');
                done();
            });

            it('errors on missing uri', function (done) {

                var header = Hawk.client.header('', 'POST');
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid argument type');
                done();
            });

            it('errors on invalid uri', function (done) {

                var header = Hawk.client.header(4, 'POST');
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid argument type');
                done();
            });

            it('errors on missing method', function (done) {

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', '');
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid argument type');
                done();
            });

            it('errors on invalid method', function (done) {

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 5);
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid argument type');
                done();
            });

            it('errors on missing options', function (done) {

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST');
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid argument type');
                done();
            });

            it('errors on invalid credentials (id)', function (done) {

                var credentials = {
                    key: '2983d45yun89q',
                    algorithm: 'sha256'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, ext: 'Bazinga!', timestamp: 1353809207 });
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid credential object');
                done();
            });

            it('errors on missing credentials', function (done) {

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { ext: 'Bazinga!', timestamp: 1353809207 });
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid credential object');
                done();
            });

            it('errors on invalid credentials', function (done) {

                var credentials = {
                    id: '123456',
                    algorithm: 'sha256'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, ext: 'Bazinga!', timestamp: 1353809207 });
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Invalid credential object');
                done();
            });

            it('errors on invalid algorithm', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'hmac-sha-0'
                };

                var header = Hawk.client.header('https://example.net/somewhere/over/the/rainbow', 'POST', { credentials: credentials, payload: 'something, anything!', ext: 'Bazinga!', timestamp: 1353809207 });
                expect(header.field).to.equal('');
                expect(header.err).to.equal('Unknown algorithm');
                done();
            });
        });

        describe('#authenticate', function () {

            it('returns false on invalid header', function (done) {

                var res = {
                    headers: {
                        'server-authorization': 'Hawk mac="abc", bad="xyz"'
                    }
                };

                expect(Hawk.client.authenticate(res, {})).to.equal(false);
                done();
            });

            it('returns false on invalid mac', function (done) {

                var res = {
                    headers: {
                        'content-type': 'text/plain',
                        'server-authorization': 'Hawk mac="_IJRsMl/4oL+nn+vKoeVZPdCHXB4yJkNnBbTbHFZUYE=", hash="f9cDF/TDm7TkYRLnGwRMfeDzT6LixQVLvrIKhh0vgmM=", ext="response-specific"'
                    }
                };

                var artifacts = {
                    method: 'POST',
                    host: 'example.com',
                    port: '8080',
                    resource: '/resource/4?filter=a',
                    ts: '1362336900',
                    nonce: 'eb5S_L',
                    hash: 'nJjkVtBE5Y/Bk38Aiokwn0jiJxt/0S2WRSUwWLCf5xk=',
                    ext: 'some-app-data',
                    app: undefined,
                    dlg: undefined,
                    mac: 'BlmSe8K+pbKIb6YsZCnt4E1GrYvY1AaYayNR82dGpIk=',
                    id: '123456'
                };

                var credentials = {
                    id: '123456',
                    key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
                    algorithm: 'sha256',
                    user: 'steve'
                };

                expect(Hawk.client.authenticate(res, credentials, artifacts)).to.equal(false);
                done();
            });

            it('returns true on ignoring hash', function (done) {

                var res = {
                    headers: {
                        'content-type': 'text/plain',
                        'server-authorization': 'Hawk mac="XIJRsMl/4oL+nn+vKoeVZPdCHXB4yJkNnBbTbHFZUYE=", hash="f9cDF/TDm7TkYRLnGwRMfeDzT6LixQVLvrIKhh0vgmM=", ext="response-specific"'
                    }
                };

                var artifacts = {
                    method: 'POST',
                    host: 'example.com',
                    port: '8080',
                    resource: '/resource/4?filter=a',
                    ts: '1362336900',
                    nonce: 'eb5S_L',
                    hash: 'nJjkVtBE5Y/Bk38Aiokwn0jiJxt/0S2WRSUwWLCf5xk=',
                    ext: 'some-app-data',
                    app: undefined,
                    dlg: undefined,
                    mac: 'BlmSe8K+pbKIb6YsZCnt4E1GrYvY1AaYayNR82dGpIk=',
                    id: '123456'
                };

                var credentials = {
                    id: '123456',
                    key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
                    algorithm: 'sha256',
                    user: 'steve'
                };

                expect(Hawk.client.authenticate(res, credentials, artifacts)).to.equal(true);
                done();
            });

            it('fails on invalid WWW-Authenticate header format', function (done) {

                var header = 'Hawk ts="1362346425875", tsm="PhwayS28vtnn3qbv0mqRBYSXebN/zggEtucfeZ620Zo=", x="Stale timestamp"';
                expect(Hawk.client.authenticate({ headers: { 'www-authenticate': header } }, {})).to.equal(false);
                done();
            });

            it('fails on invalid WWW-Authenticate header format', function (done) {

                var credentials = {
                    id: '123456',
                    key: 'werxhqb98rpaxn39848xrunpaw3489ruxnpa98w4rxn',
                    algorithm: 'sha256',
                    user: 'steve'
                };

                var header = 'Hawk ts="1362346425875", tsm="hwayS28vtnn3qbv0mqRBYSXebN/zggEtucfeZ620Zo=", error="Stale timestamp"';
                expect(Hawk.client.authenticate({ headers: { 'www-authenticate': header } }, credentials)).to.equal(false);
                done();
            });

            it('skips tsm validation when missing ts', function (done) {

                var header = 'Hawk error="Stale timestamp"';
                expect(Hawk.client.authenticate({ headers: { 'www-authenticate': header } }, {})).to.equal(true);
                done();
            });
        });

        describe('#message', function () {

            it('generates authorization', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, 'I am the boodyman', { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.exist();
                expect(auth.ts).to.equal(1353809207);
                expect(auth.nonce).to.equal('abc123');
                done();
            });

            it('errors on invalid host', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message(5, 80, 'I am the boodyman', { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on invalid port', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', '80', 'I am the boodyman', { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on missing host', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 0, 'I am the boodyman', { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on null message', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, null, { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on missing message', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, undefined, { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on invalid message', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, 5, { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on missing options', function (done) {

                var credentials = {
                    id: '123456',
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, 'I am the boodyman');
                expect(auth).to.not.exist();
                done();
            });

            it('errors on invalid credentials (id)', function (done) {

                var credentials = {
                    key: '2983d45yun89q',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, 'I am the boodyman', { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });

            it('errors on invalid credentials (key)', function (done) {

                var credentials = {
                    id: '123456',
                    algorithm: 'sha1'
                };

                var auth = Hawk.client.message('example.com', 80, 'I am the boodyman', { credentials: credentials, timestamp: 1353809207, nonce: 'abc123' });
                expect(auth).to.not.exist();
                done();
            });
        });
    });
});