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‎.gitignore‎

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node_modules/

‎README.md‎

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jquery-file-upload-middleware
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=============================
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4-
jQuery-File-Upload Express.js middleware
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jQuery-File-Upload Express.js middleware. Based on the server code of [jQuery-File-Upload](https://github.com/blueimp/jQuery-File-Upload)
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Usage:
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```javascript
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var express = require("express"),
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upload = require('jquery-file-upload-middleware');
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var app = express();
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app.configure(function () {
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...
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app.use('/upload', upload({
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uploadDir: __dirname + '/public/uploads'
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tmpDir: '/tmp',
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maxPostSize: 11000000000, // 11 GB
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minFileSize: 1,
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maxFileSize: 10000000000, // 10 GB
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acceptFileTypes: /.+/i,
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// Files not matched by this regular expression force a download dialog,
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// to prevent executing any scripts in the context of the service domain:
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safeFileTypes: /\.(gif|jpe?g|png)$/i,
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imageTypes: /\.(gif|jpe?g|png)$/i,
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imageVersions: {
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'thumbnail': {
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width: 80,
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height: 80
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}
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},
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accessControl: {
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allowOrigin: '*',
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allowMethods: 'OPTIONS, HEAD, GET, POST, PUT, DELETE'
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}
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}));
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app.use(express.bodyParser());
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...
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});
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```
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On the frontend:
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```html
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<input id="fileupload" type="file" name="files[]" data-url="/upload" multiple>
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<script>$('#fileupload').fileupload({ dataType: 'json' })</script>
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```
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## License
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Copyright (c) 2012 [Aleksandr Guidrevitch](http://aguidrevitch.blogspot.com/)
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Released under the [MIT license](http://www.opensource.org/licenses/MIT).
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‎index.js‎

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module.exports = function (options) {
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var path = require('path'),
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fs = require('fs'),
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formidable = require('formidable'),
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imageMagick = require('imagemagick'),
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_ = require('lodash'),
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// Since Node 0.8, .existsSync() moved from path to fs:
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_existsSync = fs.existsSync || path.existsSync,
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utf8encode = function (str) {
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return unescape(encodeURIComponent(str));
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},
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nameCountRegexp = /(?:(?: \(([\d]+)\))?(\.[^.]+))?$/,
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nameCountFunc = function (s, index, ext) {
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return ' (' + ((parseInt(index, 10) || 0) + 1) + ')' + (ext || '');
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};
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options = _.extend({
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tmpDir: '/tmp',
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uploadDir: __dirname + '/public/files',
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uploadUrl: '/files/',
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maxPostSize: 11000000000, // 11 GB
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minFileSize: 1,
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maxFileSize: 10000000000, // 10 GB
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acceptFileTypes: /.+/i,
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// Files not matched by this regular expression force a download dialog,
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// to prevent executing any scripts in the context of the service domain:
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safeFileTypes: /\.(gif|jpe?g|png)$/i,
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imageTypes: /\.(gif|jpe?g|png)$/i,
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imageVersions: {
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/*
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thumbnail: {
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width: 80,
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height: 80
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}
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*/
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},
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accessControl: {
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allowOrigin: '*',
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allowMethods: 'OPTIONS, HEAD, GET, POST, PUT, DELETE'
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}
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}, options);
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var FileInfo = function (file) {
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this.name = file.name;
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this.size = file.size;
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this.type = file.type;
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this.delete_type = 'DELETE';
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};
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FileInfo.prototype.validate = function () {
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if (options.minFileSize && options.minFileSize > this.size) {
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this.error = 'File is too small';
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} else if (options.maxFileSize && options.maxFileSize < this.size) {
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this.error = 'File is too big';
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} else if (!options.acceptFileTypes.test(this.name)) {
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this.error = 'Filetype not allowed';
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}
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return !this.error;
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};
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FileInfo.prototype.safeName = function () {
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// Prevent directory traversal and creating hidden system files:
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this.name = path.basename(this.name).replace(/^\.+/, '');
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// Prevent overwriting existing files:
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while (_existsSync(options.uploadDir + '/' + this.name)) {
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this.name = this.name.replace(nameCountRegexp, nameCountFunc);
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}
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};
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FileInfo.prototype.initUrls = function (req) {
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if (!this.error) {
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var that = this,
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baseUrl = (options.ssl ? 'https:' : 'http:') +
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'//' + req.headers.host;
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this.delete_url = baseUrl + req.originalUrl + '/' +encodeURIComponent(this.name);
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this.url = baseUrl + options.uploadUrl + '/' +encodeURIComponent(this.name);
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Object.keys(options.imageVersions).forEach(function (version) {
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if (_existsSync(
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options.uploadDir + '/' + version + '/' + that.name
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)) {
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that[version + '_url'] = baseUrl + options.uploadUrl + '/' + version + '/' + encodeURIComponent(that.name);
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}
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});
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}
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};
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var UploadHandler = function (req, res, callback) {
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this.req = req;
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this.res = res;
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this.callback = callback;
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};
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UploadHandler.prototype.noCache = function () {
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this.res.set({
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'Pragma': 'no-cache',
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'Cache-Control': 'no-store, no-cache, must-revalidate',
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'Content-Disposition': 'inline; filename="files.json"'
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});
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};
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UploadHandler.prototype.get = function () {
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var handler = this,
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files = [];
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handler.noCache();
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fs.readdir(options.uploadDir, function (err, list) {
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_.each(list, function (name) {
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var stats = fs.statSync(options.uploadDir + '/' + name),
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fileInfo;
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if (stats.isFile()) {
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fileInfo = new FileInfo({
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name: name,
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size: stats.size
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});
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fileInfo.initUrls(handler.req);
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files.push(fileInfo);
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}
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});
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handler.callback(files);
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});
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};
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UploadHandler.prototype.post = function () {
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var handler = this,
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form = new formidable.IncomingForm(),
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tmpFiles = [],
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files = [],
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map = {},
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counter = 1,
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redirect,
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finish = function () {
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if (!--counter) {
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files.forEach(function (fileInfo) {
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fileInfo.initUrls(handler.req);
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});
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handler.callback(files, redirect);
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}
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};
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handler.noCache();
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form.uploadDir = options.tmpDir;
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form
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.on('fileBegin', function (name, file) {
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tmpFiles.push(file.path);
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var fileInfo = new FileInfo(file, handler.req, true);
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fileInfo.safeName();
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map[path.basename(file.path)] = fileInfo;
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files.push(fileInfo);
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})
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.on('field', function (name, value) {
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if (name === 'redirect') {
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redirect = value;
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}
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})
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.on('file', function (name, file) {
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var fileInfo = map[path.basename(file.path)];
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if (_existsSync(file.path)) {
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fileInfo.size = file.size;
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if (!fileInfo.validate()) {
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fs.unlink(file.path);
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return;
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}
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fs.renameSync(file.path, options.uploadDir + '/' + fileInfo.name);
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if (options.imageTypes.test(fileInfo.name) && _.keys(options.imageVersions).length) {
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Object.keys(options.imageVersions).forEach(function (version) {
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if (!_existsSync(options.uploadDir + '/' + version + '/'))
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throw new Error(options.uploadDir + '/' + version + '/' + ' not exists');
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counter++;
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var opts = options.imageVersions[version];
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imageMagick.resize({
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width: opts.width,
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height: opts.height,
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srcPath: options.uploadDir + '/' + fileInfo.name,
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dstPath: options.uploadDir + '/' + version + '/' + fileInfo.name
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}, finish);
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});
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}
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}
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})
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.on('aborted', function () {
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tmpFiles.forEach(function (file) {
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fs.unlink(file);
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});
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})
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.on('error', function (e) {
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console.log(e);
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})
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.on('progress', function (bytesReceived, bytesExpected) {
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if (bytesReceived > options.maxPostSize)
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handler.req.connection.destroy();
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})
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.on('end', finish)
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.parse(handler.req);
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};
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UploadHandler.prototype.destroy = function () {
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var handler = this,
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fileName = path.basename(decodeURIComponent(this.req.url));
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fs.unlink(options.uploadDir + '/' + fileName, function (ex) {
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Object.keys(options.imageVersions).forEach(function (version) {
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fs.unlink(options.uploadDir + '/' + version + '/' + fileName);
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});
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handler.callback(!ex);
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});
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};
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return function (req, res, next) {
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res.set({
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'Access-Control-Allow-Origin': options.accessControl.allowOrigin,
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'Access-Control-Allow-Methods': options.accessControl.allowMethods
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});
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var handler = new UploadHandler(req, res, function (result, redirect) {
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if (redirect) {
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res.redirect(redirect.replace(/%s/, encodeURIComponent(JSON.stringify(result))));
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} else {
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res.set({
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'Content-Type': req.headers.accept.indexOf('application/json') !== -1
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? 'application/json'
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: 'text/plain'
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});
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res.json(200, result);
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}
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});
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switch (req.method) {
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case 'OPTIONS':
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res.end();
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break;
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case 'HEAD':
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case 'GET':
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handler.get();
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break;
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case 'POST':
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handler.post();
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break;
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case 'DELETE':
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handler.destroy();
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break;
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default:
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res.send(405);
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}
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}
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};

‎package.json‎

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{
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"name": "jquery-file-upload-middleware",
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"description": "http://aguidrevitch.blogspot.com",
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"version": "0.0.1",
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"dependencies": {
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"formidable": ">=1.0.11",
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"imagemagick": ">=0.1.2",
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"lodash": ">= 0.9.2"
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},
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"engines": {
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"node": ">= 0.8.8"
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},
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"main": "./index.js"
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}

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