Source: email_send/svc.js

/***
 * Copyright 2015 RAPP
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Authors: Konstantinos Panayiotou
 * Contact: klpanagi@gmail.com
 *
 */


/**
 * @fileOverview
 *
 * [Email-Send] RAPP Platform web service implementation.
 *
 *  @author Konstantinos Panayiotou
 *  @copyright Rapp Project EU 2015
 *
 */


var path = require('path');
var zip = require( path.join(ENV.PATHS.INCLUDE_DIR, 'common', 'zip.js') );
var Fs = require( path.join(ENV.PATHS.INCLUDE_DIR, 'common', 'fileUtils.js') );

var interfaces = require( path.join(__dirname, 'iface_obj.js') );

const rosSrvName = "/rapp/rapp_email_send/send_email";


/**
 *  [Email-Send]
 *  Handles requests to email_send RAPP Platform Service
 *
 *  Service Implementation.
 *
 *
 */
function svcImpl(req, resp, ros) {
  var _files = [];

  if (req.files.file) {
    // If it is a zip file
    if (zip.isZipFile(req.files.file[0])) {
      _files = zip.unzip(req.files.file[0]).filepaths;
    } else {
      // If it is a single non-zip file
      _files.push(req.files.file[0]);
    }
  }

  var rosMsg = new interfaces.ros_req();
  rosMsg.userEmail = req.body.email;
  rosMsg.password = req.body.passwd;
  rosMsg.server = req.body.server;
  rosMsg.port = req.body.port;
  rosMsg.recipients = req.body.recipients;
  rosMsg.body = req.body.body;
  rosMsg.subject = req.body.subject;
  rosMsg.files = _files;

  // ROS-Service response callback.
  function callback(data) {
    Fs.rmFile(req.files.file[0]);
    // Parse rosbridge message and craft client response
    var response = parseRosbridgeMsg(data);
    resp.sendJson(response);
  }

  // ROS-Service onerror callback.
  function onerror(e) {
    Fs.rmFile(req.files.file[0]);
    var response = new interfaces.client_res();
    response.error = e;
    resp.sendJson(response);
  }

  // Call ROS-Service.
  ros.callService(rosSrvName, rosMsg, {success: callback, fail: onerror});
}


/***
 * Crafts response object.
 *
 *  @param {Object} rosbridge_msg - Return message from rosbridge
 *
 *  @returns {Object} response - Response Object.
 *  @returns {String} response.error - Error message.
 */
function parseRosbridgeMsg(rosbridge_msg) {
  const success = rosbridge_msg.status;

  var response = new interfaces.client_res();

  if (success < 0) {
    response.error = "Failed to send email";
  }

  return response;
}


module.exports = svcImpl;