gistfile1.js

getSignedRequest: function(container, resourceKey, expirationTimeInSeconds, fn) {
    if (_.isFunction(expirationTimeInSeconds)) {
        fn = expirationTimeInSeconds;
        expirationTimeInSeconds = 3600;
    }

    if (process.env.SL_STORAGE_URL == null) {
        request.get(slConfigs.SL_STORAGE_AUTH_URL_V1, {
            headers: {
                'X-Auth-User':slConfigs.SL_STORAGE_USERNAME,
                'X-Auth-Key':slConfigs.SL_STORAGE_PASS
            }
        }, function(err, value) {
            if (value.statusCode == 200) {
                var storageUrl = value.headers['x-storage-url'];
                process.env.SL_STORAGE_URL = storageUrl;

                return softlayerEngine.getSignedRequest(container, resourceKey, expirationTimeInSeconds, fn);
            } else {
                return fn("Could not retrieve SoftLayer Storage URL");
            }
        });

        return;
    }


    var tempUrlKey = slConfigs.SL_STORAGE_TEMP_URL_KEY;
    var method = 'GET';
    var expires = Math.floor(Date.now() / 1000) + expirationTimeInSeconds;

    var storageUrl = process.env.SL_STORAGE_URL;
    var storageParts = url.parse(storageUrl);
    var path = storageParts.pathname + "/" + container + "/" + resourceKey;

    var body = method + '\n' + expires + '\n' + path;

    var hash = crypto.createHmac('sha1', tempUrlKey).update(body).digest('hex');
    var uri = storageParts.protocol + '//' + storageParts.host + path + '?temp_url_sig=' + hash + '&temp_url_expires=' + expires;
    return fn(null, uri);
},