intern-a11y/services/tenon.js

Intern-a11y. An accessibility testing helper for Intern.

"use strict";
var https_1 = require("https");
var querystring_1 = require("querystring");
var fs_1 = require("fs");
var common_1 = require("../common");
var _tenon_1 = require("./_tenon");
function check(options) {
    return new Promise(function (resolve, reject) {
        var apiKey = process.env['TENON_API_KEY'];
        if (!apiKey && options.apiKey) {
            apiKey = options.apiKey;
        }
        if (!apiKey) {
            throw new Error('tenon requires an API key');
        }
        var queryData = {
            key: apiKey
        };
        for (var key in options.config) {
            queryData[key] = options.config[key];
        }
        var source = options.source;
        if (/^https?:\/\/\S+$/.test(source)) {
            queryData.url = source;
        }
        else if (_tenon_1.fileExists(source)) {
            queryData.src = fs_1.readFileSync(source, { encoding: 'utf8' });
        }
        else {
            queryData.src = source;
        }
        var data = querystring_1.stringify(queryData);
        var request = https_1.request({
            host: 'tenon.io',
            path: '/api/',
            method: 'POST',
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded',
                'Content-Length': Buffer.byteLength(data)
            }
        }, function (response) {
            var responseData = [];
            response.setEncoding('utf8');
            response.on('data', function (chunk) {
                responseData.push(chunk);
            });
            response.on('end', function () {
                if (response.statusCode !== 200) {
                    reject(new Error(response.statusMessage));
                }
                else {
                    resolve(JSON.parse(responseData.join('')));
                }
            });
            response.on('error', function (error) {
                reject(error);
            });
        });
        request.write(data);
        request.end();
    }).then(function (results) {
        var a11yResults = _tenon_1.toA11yResults(results);
        var totalErrors = results.resultSummary.issues.totalErrors;
        var error;
        if (totalErrors === 1) {
            error = new common_1.A11yError('1 a11y violation was logged', a11yResults);
        }
        if (totalErrors > 1) {
            error = new common_1.A11yError(totalErrors + ' a11y violations were logged', a11yResults);
        }
        if (error) {
            throw error;
        }
        return a11yResults;
    });
}
exports.check = check;
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