grabbed/lib/parser.js

grabs emails and pulls attachments and dumps into a folder.

// Generated by CoffeeScript 1.6.3
var MailParser, async, dateFormat, dropboxDir, fs, md5, mkdirp, os, path, q, userHome, _;

fs = require("fs");

path = require("path");

os = require("os");

md5 = require('MD5');

_ = require("underscore");

mkdirp = require("mkdirp").sync;

MailParser = require("mailparser").MailParser;

dateFormat = require("dateformat");

async = require("async");

if (os.platform() === "win32") {
  userHome = process.env.USERPROFILE;
} else {
  userHome = process.env.HOME;
}

dropboxDir = path.join(userHome, 'Dropbox', 'CCTV', 'motion_clips');

mkdirp(dropboxDir);

q = async.queue(function(task, callback) {
  var file, nextJob, parseFile, parser, readFile, rmFile, writeImages;
  nextJob = callback;
  parser = new MailParser();
  file = task;
  readFile = function(next) {
    var doneFullPath, donePath, email, filePath, fullPath;
    console.log("Reading email file... " + task);
    filePath = path.join(process.cwd(), 'messages');
    fullPath = path.join(filePath, file);
    donePath = path.resolve(filePath, "./parsed");
    doneFullPath = path.join(donePath, file);
    console.log(fullPath);
    email = fs.readFileSync(fullPath);
    console.log("Done reading email " + task + ".");
    return next(null, email);
  };
  parseFile = function(email, next) {
    console.log("parsing file...");
    parser.on("end", function(mail_object) {
      return next(null, mail_object);
    });
    parser.write(email);
    return parser.end();
  };
  writeImages = function(msg, next) {
    var attachments, msgDate, processAttachment;
    msgDate = new Date(msg.headers.date);
    processAttachment = function(attachment, callback) {
      var fileDate, fileExt, fileName, filePath, fileTime, fullFilePath;
      fileExt = path.extname(attachment.fileName);
      fileDate = dateFormat(msgDate, 'yyyy-mm-dd');
      fileTime = dateFormat(msgDate, 'HHMMss');
      fileName = fileTime + "_" + md5(attachment.fileName) + fileExt;
      filePath = path.join(dropboxDir, fileDate);
      mkdirp(filePath);
      fullFilePath = path.join(filePath, fileName);
      return fs.writeFile(fullFilePath, attachment.content, function(err) {
        return callback(null);
      });
    };
    attachments = msg.attachments;
    return async.eachSeries(attachments, processAttachment, function(err) {
      if (err != null) {
        throw err;
      }
      return next(null);
    });
  };
  rmFile = function(callback) {
    readFile = path.join(process.cwd(), 'messages', task);
    return fs.unlink(readFile, function(err) {
      if (err != null) {
        throw err;
      }
      return callback();
    });
  };
  return async.waterfall([readFile, parseFile, writeImages, rmFile], function(err, result) {
    if (err != null) {
      throw err;
    }
    return nextJob();
  });
}, 1);

q.drain = function() {
  console.log("all MESSAGES have been processed");
  process.exit();
};

fs.readdir('./messages', function(err, files) {
  if (err != null) {
    throw err;
  }
  return _.each(files, function(file) {
    return q.push(file, function(err) {
      console.log("finished processing email");
    });
  });
});