Upload Sails

FileController.js

/**
 * FileController
 *
 * @description :: Server-side logic for managing files
 * @help        :: See http://links.sailsjs.org/docs/controllers
 */

var async = require('async');

module.exports = {

upload: function (req, res) {

    res.setTimeout(0);

    req.file('avatar')
    .upload({ maxBytes: 1000000 }, 
    	function whenDone(err, uploadedFiles) {
      		if (err) return res.serverError(err);
		    else {
		    	var tasks = [];
		    	_.map(uploadedFiles, function fileOne(file){
		    		tasks.push(function(callback) {
		    			uploadService.processImage(file, function(result){
		    				callback(null, result);
		    			});
		    		});
		    	});

				async.parallel(tasks, function wellDone(err, result) {
				    if (err) return console.log(err);
					return res.json({ files: result });
				});
		    }
		} 
    );
},

s3upload: function (req, res) {

    res.setTimeout(0);

    req.file('avatar').upload({
      adapter: require('skipper-s3'),
      bucket: process.env.BUCKET,
      key: process.env.KEY,
      secret: process.env.SECRET
    }, function whenDone(err, uploadedFiles) {
      if (err) return res.serverError(err);
      else return res.json({
        files: uploadedFiles,
        textParams: req.params.all()
      });
    });
},

download: function (req, res) {
    require('fs').createReadStream(req.param('path'))
    .on('error', function (err) {
      return res.serverError(err);
    })
    .pipe(res);
  }

};

index.html

 <form enctype="multipart/form-data" id="my-form">
      <label>Please upload your avatar:</label>

      <input type="file" name="avatar" id="avatar[]" />
      <input type="file" name="avatar" id="avatar[]" />
      <input type="file" name="avatar" id="avatar[]" />
      <input type="file" name="avatar" id="avatar[]" />

      <input type="hidden" name="_csrf" value="<%= _csrf %>">
      <br/>
      <br/>
      <input type="submit"/>

      <div id="rr"></div>
  </form>

<script type="text/javascript">

$("form#my-form").submit(function(event){

  event.preventDefault();
 
  var formData = new FormData($(this)[0]);
 
  $.ajax({
    url: '/file/upload',
    type: 'POST',
    data: formData,
    async: false,
    cache: false,
    contentType: false,
    processData: false,
    success: function (rdata) {

      $.each(rdata.files, function(i, r){
        var uri = 'http://localhost:1337' + '/' + r.path + '/' + r.name;
        console.log(uri);

        $("#rr").append("<div id='"+r.id+"' style='width:"+r.data.width+"px; height:"+r.data.height+"px;'><img id='"+r.id+"IMG'></img></div>");

        setTimeout(function(){
            $("#"+r.id+"IMG").attr("src", uri).one("load",function(){ 
                     $("#"+r.id).attr("onclick", "javascript:window.open('"+uri+"');");
                     console.log("img carregada!");
            });
        }, 2000);

      });
    }
  });

  return false;
});

</script>

routes.js

/**Uploads**/
  'post /file/upload': 'FileController.upload',
  'post /file/s3upload': 'FileController.s3upload'
/***/

uploadService.js

var S      = require('string');
var fs     = require('fs');
var uuid   = require('node-uuid');
var mkdirp = require('mkdirp');
var im     = require('imagemagick');
var query  = require('querystring');
var moment = require('moment');

var UPLOAD_PATH_ASSETS  = 'assets/images';
 
function safeFilename(fileName) {
  fileName = S(fileName).replaceAll(' ', '-').latinise().s;
  fileName = S(fileName).replaceAll('_', '-').latinise().s;
  fileName = S(fileName).replaceAll(',', '-').latinise().s;
  fileName = S(fileName).replaceAll('$', '-').latinise().s;
  fileName = S(fileName).replaceAll('%', '-').latinise().s;
  fileName = S(fileName).replaceAll('@', '-').latinise().s;
  return fileName;
}
 
function fileExtension(fileName) {
  return S(fileName).latinise().s.split('.').slice(-1);
}

exports.processImage = function(file, callback) {

 var fd        = file.fd,
 id            = uuid.v1(),
 fileName      = id + "." + safeFilename(file.filename),
 dirPathAssets = UPLOAD_PATH_ASSETS + '/' + moment(new Date()).format('YYYY-MM-DD'),
 filePath      = dirPathAssets + '/' + fileName;
 
    try {
      mkdirp.sync(dirPathAssets, 0755);
    } catch (e) {
      console.log(e);
    }
 
    return fs.readFile(fd, function dataDone(err, data) {
      if (err) return {'error': '(fs) nao consegui LER o arquivo.'};
      
        return fs.writeFile(filePath, data, function whenError(err) {
          if (err) return {'error': '(fs) nao consegui ESCREVER o arquivo'};

          return im.identify(filePath, function featureDone(err, features){
  			      if (err) return {'error': '(imagemagick) nao consegui IDENTIFICAR o arquivo'};
              else {

            	 var dfeature = {
                "geometry": features.geometry,
                "resolution": features.resolution,
                "type": features.type,
                "colorspace": features.colorspace,
                "depth": features.depth,
                "compression": features.compression,
                "width": features.width,
                "height": features.height
        		    };

      				  var result = {
      			    	'result': 'success',
      				    'id': id,
      				    'name': fileName,
      				    'path': S(dirPathAssets).replaceAll('assets/','').s,
      				    'size': file.size,
            			'type': file.type,
            			'data' : dfeature
      				  };

      				  return callback(result);
  			       }
 		     });
		  });
    });
};