'use strict';

require('../helper');

var _ = require('underscore');
var OAuthAuth = require('../../lib/auth/oauth');
var MetadataDB = require('cartodb-redis');
var oAuth = require('../../lib/auth/oauth').backend;
var assert = require('assert');
var oauthData1 = {
    oauth_consumer_key: 'dpf43f3p2l4k3l03',
    oauth_token: 'nnch734d00sl2jdk',
    oauth_signature_method: 'HMAC-SHA1',
    oauth_signature: 'tR3%2BTy81lMeYAr%2FFid0kMTYa%2FWM%3D',
    oauth_timestamp: '1191242096',
    oauth_nonce: 'kllo9940pd9333jh'
};
var oauthData2 = { oauth_version: '1.0' };
var oauthData = _.extend(oauthData1, oauthData2);
var realOauthHeader = 'OAuth ' +
    'realm="http://vizzuality.testhost.lan/",' +
    'oauth_consumer_key="fZeNGv5iYayvItgDYHUbot1Ukb5rVyX6QAg8GaY2",' +
    'oauth_token="l0lPbtP68ao8NfStCiA3V3neqfM03JKhToxhUQTR",' +
    'oauth_signature_method="HMAC-SHA1", ' +
    'oauth_signature="o4hx4hWP6KtLyFwggnYB4yPK8xI%3D",' +
    'oauth_timestamp="1313581372",' +
    'oauth_nonce="W0zUmvyC4eVL8cBd4YwlH1nnPTbxW0QBYcWkXTwe4",' +
    'oauth_version="1.0"';
var oauthHeaderTokens = 'oauth_consumer_key="dpf43f3p2l4k3l03",' +
    'oauth_token="nnch734d00sl2jdk",' +
    'oauth_signature_method="HMAC-SHA1", ' +
    'oauth_signature="tR3%2BTy81lMeYAr%2FFid0kMTYa%2FWM%3D",' +
    'oauth_timestamp="1191242096",' +
    'oauth_nonce="kllo9940pd9333jh",' +
    'oauth_version="1.0"';
var fullOauthHeader = 'OAuth realm="http://photos.example.net/"' + oauthHeaderTokens;

var metadataBackend = new MetadataDB({
    host: global.settings.redis_host,
    port: global.settings.redis_port,
    max: global.settings.redisPool,
    idleTimeoutMillis: global.settings.redisIdleTimeoutMillis,
    reapIntervalMillis: global.settings.redisReapIntervalMillis
});

describe('oauth', function () {
    it('test database number', function () {
        assert.strictEqual(oAuth.oauth_database, 3);
    });

    it('test oauth database key', function () {
        assert.strictEqual(oAuth.oauth_user_key, 'rails:oauth_access_tokens:<%= oauth_access_key %>');
    });

    it('test parse tokens from full headers does not raise exception', function () {
        var req = { query: {}, headers: { authorization: fullOauthHeader } };
        assert.doesNotThrow(function () { oAuth.parseTokens(req); }, /incomplete oauth tokens in request/);
    });

    it('test parse all normal tokens raises no exception', function () {
        var req = { query: oauthData, headers: {} };
        assert.doesNotThrow(function () { oAuth.parseTokens(req); }, /incomplete oauth tokens in request/);
    });

    it('test headers take presedence over query parameters', function () {
        var req = { query: { oauth_signature_method: 'MY_HASH' }, headers: { authorization: fullOauthHeader } };
        var tokens = oAuth.parseTokens(req);
        assert.strictEqual(tokens.oauth_signature_method, 'HMAC-SHA1');
    });

    it('test can access oauth hash for a user based on access token (oauth_token)', function (done) {
        var req = { query: {}, headers: { authorization: realOauthHeader } };
        var tokens = oAuth.parseTokens(req);

        oAuth.getOAuthHash(metadataBackend, tokens.oauth_token, function (err, data) {
            assert.ifError(err);
            assert.strictEqual(tokens.oauth_consumer_key, data.consumer_key);
            done();
        });
    });

    it('test non existant oauth hash for a user based on oauth_token returns empty hash', function (done) {
        var req = { query: {}, params: { user: 'vizzuality' }, headers: { authorization: fullOauthHeader } };
        var tokens = oAuth.parseTokens(req);

        oAuth.getOAuthHash(metadataBackend, tokens.oauth_token, function (err, data) {
            assert.ifError(err);
            assert.deepStrictEqual(data, {});
            done();
        });
    });

    it('can return user for verified signature', function (done) {
        var req = {
            query: {},
            headers: { authorization: realOauthHeader, host: 'vizzuality.testhost.lan' },
            params: { user: 'vizzuality' },
            protocol: 'http',
            method: 'GET',
            path: '/api/v1/tables'
        };

        oAuth.verifyRequest(req, metadataBackend, function (err, data) {
            assert.ifError(err);
            assert.strictEqual(data, 'master');
            done();
        });
    });

    it('can return user for verified signature (for other allowed domains)', function (done) {
        var oAuthGetAllowedHostsFn = oAuth.getAllowedHosts;
        oAuth.getAllowedHosts = function () {
            return ['testhost.lan', 'testhostdb.lan'];
        };
        var req = {
            query: {},
            headers: { authorization: realOauthHeader, host: 'vizzuality.testhostdb.lan' },
            params: { user: 'vizzuality' },
            protocol: 'http',
            method: 'GET',
            path: '/api/v1/tables'
        };

        oAuth.verifyRequest(req, metadataBackend, function (err, data) {
            oAuth.getAllowedHosts = oAuthGetAllowedHostsFn;
            assert.ifError(err);
            assert.strictEqual(data, 'master');
            done();
        });
    });

    it('returns null user for unverified signatures', function (done) {
        var req = {
            query: {},
            headers: { authorization: realOauthHeader, host: 'vizzuality.testyhost.lan' },
            params: { user: 'vizzuality' },
            protocol: 'http',
            method: 'GET',
            path: '/api/v1/tables'
        };

        oAuth.verifyRequest(req, metadataBackend, function (err, data) {
            assert.ifError(err);
            assert.strictEqual(data, null);
            done();
        });
    });

    it('returns null user for no oauth', function (done) {
        var req = {
            query: {},
            headers: {},
            params: { user: 'vizzuality' },
            protocol: 'http',
            method: 'GET',
            path: '/api/v1/tables'
        };

        oAuth.verifyRequest(req, metadataBackend, function (err, data) {
            assert.ifError(err);
            assert.strictEqual(data, null);
            done();
        });
    });

    it('OAuthAuth reports it has credentials', function (done) {
        var req = { query: {}, headers: { authorization: realOauthHeader } };
        var oAuthAuth = new OAuthAuth(req);
        assert.ok(oAuthAuth.hasCredentials());
        done();
    });

    it('OAuthAuth reports it has no credentials', function (done) {
        var req = { query: {}, headers: {} };
        var oAuthAuth = new OAuthAuth(req);
        assert.strictEqual(oAuthAuth.hasCredentials(), false);
        done();
    });
});