soya/lib/ErrorHandler.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Ideally you should extend this woefully inadequate error handler with
 * something awesome that you have.
 *
 * SERIOUSLY: This error handler prints your error stack trace to the user.
 * Not cool for production bro - not cool at all.
 *
 * IMPORTANT NOTE: Exception thrown within this error handler is not caught
 * at all. This means if you throw exception here, or from async callback
 * executed from a sync code here - it will stop the server.
 *
 * @SERVER
 */
var ErrorHandler = function () {

  /**
   * @param {Logger} logger
   */
  function ErrorHandler(logger) {
    _classCallCheck(this, ErrorHandler);

    this._logger = logger;
  }

  /**
   * An uncaught exception at the request level, but headers are already sent
   * to the user. Nothing to do unless maybe to log.
   *
   * @param {Error} error
   * @param {http.incomingMessage} request
   * @param {httpServerResponse} response
   */


  _createClass(ErrorHandler, [{
    key: 'responseSentError',
    value: function responseSentError(error, request, response) {
      var preppedRequest = this._logger.prepRequest(request);
      var preppedResponse = this._logger.prepResponse(response);
      this._logger.error('Uncaught exception, headers already sent ->', error, [preppedRequest, preppedResponse]);
      // If headers are already sent, we have no need of actually doing
      // anything. Just close the connection already.
      try {
        response.end();
      } catch (e) {
        this._logger.error('Unable to end response to an uncaught exception ->', e, [error, preppedRequest, preppedResponse]);
      }
    }

    /**
     * An uncaught exception at the request level. Headers are not yet sent, so
     * you can actually dictate what to display (cue cute server error pages).
     *
     * @param {Error} error
     * @param {http.incomingMessage} request
     * @param {response} response
     */

  }, {
    key: 'responseNotSentError',
    value: function responseNotSentError(error, request, response) {
      var preppedRequest = this._logger.prepRequest(request);
      var preppedResponse = this._logger.prepResponse(response);
      this._logger.error('Uncaught exception ->', error, [preppedRequest, preppedResponse]);

      try {
        if (error instanceof Error) {
          // TODO: Awesome default error handler, similar to PHP's Whoops library.
          response.writeHead(500, { 'Content-Type': 'text/html' });
          response.end('<pre>' + error.stack + '</pre>');
        } else {
          response.end(error + '');
        }
      } catch (e) {
        this._logger.error('Unable to write error page for exception ->', e, [error, preppedRequest, preppedResponse]);
      }
    }
  }]);

  return ErrorHandler;
}();

exports.default = ErrorHandler;
//# sourceMappingURL=ErrorHandler.js.map