HatenaBookmarkWebhook.gs

/*
 * == HatenaBookmarkWebhook ==
 * library to handle params for Google Apps Script
 * 
 * @doc http://developer.hatena.ne.jp/ja/documents/bookmark/apis/webhook
 */

/* constructs an HatenaBookmarkWebhook
 *
 * @constructor
 * @return {HatenaBookmarkWebhook}
 */
function getInstance() {
  return new HatenaBookmarkWebhook();
}

/* constructs an HatenaBookmarkWebhook
 *
 * @constructor
 */
function HatenaBookmarkWebhook() {}

/* handle params from Hatena Bookmark
 *
 * @param {e} event object after post request
 * @throws {Object}
 * @return {Object}
 */
HatenaBookmarkWebhook.prototype.requestHandler = function (e) {
  try {
    if (!e.parameter) throw new Error('Missing required parameters.');
    var res = e.parameter;
    res['tags']    = this.parseTags(res.comment);
    res['comment'] = this.parseComment(res.comment);
    return (this.onSuccess === undefined) ? res : this.onSuccess(res);
  } catch(ex) {
    var res = { parameter: { message: ex.toString() } };
    return (this.onFailure === undefined) ? res : this.onFailure(res);
  }
}

/* parse tags from comment
 *
 * @param {String} comment in params
 * @return {String} comma separated values
 */
HatenaBookmarkWebhook.prototype.parseTags = function (comment) {
  var matches_array = comment.match(/(\[.+?\])/g);
  if (!matches_array) {
    return null;
  } else {
    return Object.keys(matches_array).map(function(i) {
      return matches_array[i].replace(/^\[(.+)\]/, '$1');
    }).join(', ');
  }
}

/* parse comment from comment
 *
 * @param {String} comment in params
 * @return {String} stripped tags from comment
 */
HatenaBookmarkWebhook.prototype.parseComment = function (comment) {
  var matches_array = comment.match(/^\[.+\]\s(.+)$/);
  if (!matches_array) {
    return null;
  } else {
    return matches_array[1];
  }
}

/* register callback on success
 *
 * @param {function} callback on success
 * @return {this instance}
 */
HatenaBookmarkWebhook.prototype.onSuccessHandler = function (_callback) {
  this.onSuccess = _callback;
  return this;
}

/* register callback on failure
 *
 * @param {function} callback on success
 * @return {this instance}
 */
HatenaBookmarkWebhook.prototype.onFailureHandler = function (_callback) {
  this.onFailure = _callback;
  return this;
}