Half-working library-less Pushover function.

pushover.js

/*
 * To use:
 * require('pushover').send({token: 'xxxx', userKey: 'xxxx', text: 'message', payload: myRawImage});
 */
module.exports = (function () {
  'use strict';

  return {
    /**
     * Prepare a request for command execution.
     */
    postPrepare : function (config) {
      return {
        host    : 'api.pushover.net',
        port    : 443,
        path    : '/1/messages.json',
        method  : 'POST',
        headers : {
          'Accept'         : 'application/json',
          'Content-Type'   : 'multipart/form-data; boundary=' + config.boundary,
          'Content-Length' : Buffer.byteLength(config.postRequest)
        }
      };
    },

    /**
     * Prepare the POST data to be sent.
     */
    postData : function (pushover) {
      var data = '--' + pushover.boundary + '\r\n'
               + 'Content-Disposition: form-data; name="user"\r\n\r\n'
               + pushover.userKey + '\r\n'
               + '--' + pushover.boundary + '\r\n'
               + 'Content-Disposition: form-data; name="token"\r\n\r\n'
               + pushover.token + '\r\n'
               + '--' + pushover.boundary + '\r\n'
               + 'Content-Disposition: form-data; name="message"\r\n\r\n'
               + pushover.text + '\r\n';

      if (pushover.payload) {
        data += '--' + pushover.boundary + '\r\n'
              + 'Content-Disposition: form-data; name="attachment"; filename="image.jpg"\r\n'
              + 'Content-Type: image/jpeg\r\n\r\n'
              + pushover.payload + '\r\n';
      }

      data += '\r\n--' + pushover.boundary + '--';

      return data;
    },

    send : function (config) {
      var https    = require('https'),
          pushover = {},
          request;

      pushover.token       = config.token;
      pushover.userKey     = config.userKey;
      pushover.text        = config.text     || '';
      pushover.payload     = config.payload  || null;
      pushover.boundary    = Math.random().toString(16);
      pushover.postRequest = this.postData(pushover);

      request = https.request(this.postPrepare(pushover), function (response) {
        response.setEncoding('utf8');

        response.once('data', function (response) {
          console.log(response);
        });
      });

      request.once('error', function (err) {
        console.log(err);
      });

      request.end(pushover.postRequest);
    }
  };
}());