galleon/query/get.attachment.js

A badass SMTP mail server built on Node to make your life simpler.

var path = require('path');
var fs = require('fs');
var _ = require('lodash');

module.exports = function (Galleon, query, callback) {
  if (!Galleon.connection.collections.mail) return callback(new Error('Collection Not Found!'));
  Galleon.connection.collections.mail.findOne({
    association: query.email,
    eID: query.eID.substring(1)
  }).exec(function (error, mail) {
    if (error) return callback(error);
    if (!mail) return callback("Mail not found!");

    // Determines if attachment is CID based (embedded)
    var attachment = _.findWhere(mail.attachments, (query.id.substring(0, 4) !== "cid=") ? {
      id: query.eID.substring(1) + "_" + query.id
    } : {
        cid: query.id.slice(4)
      });

    if (attachment) {
      fs.exists(path.resolve(Galleon.environment.paths.attachments, _.result(attachment, 'id')), function (exists) {
        /* Escape filename */
        if (exists) {
          callback(null, {
            path: path.resolve(Galleon.environment.paths.attachments, _.result(attachment, 'id')),
            name: _.result(attachment, 'fileName'),
            length: _.result(attachment, 'length') || 0,
            cid: (query.id.substring(0, 4) === "cid="),
          })
        } else callback('Attachment file not found!');
      });
    } else {
      callback('Attachment not found!');
    }
  })
}