#!/usr/bin/env node
/*
* jQuery File Upload Plugin Node.js Example 2.1.1
* https://github.com/blueimp/jQuery-File-Upload
*
* Copyright 2012, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
*/
/* jshint nomen:false */
/* global require, __dirname, unescape, console */
(function (port) {
'use strict';
var path = require('path'),
fs = require('fs'),
// Since Node 0.8, .existsSync() moved from path to fs:
_existsSync = fs.existsSync || path.existsSync,
formidable = require('formidable'),
nodeStatic = require('node-static'),
imageMagick = require('imagemagick'),
options = {
tmpDir: __dirname + '/tmp',
publicDir: __dirname + '/public',
uploadDir: __dirname + '/public/files',
uploadUrl: '/files/',
maxPostSize: 11000000000, // 11 GB
minFileSize: 1,
maxFileSize: 10000000000, // 10 GB
acceptFileTypes: /.+/i,
// Files not matched by this regular expression force a download dialog,
// to prevent executing any scripts in the context of the service domain:
inlineFileTypes: /\.(gif|jpe?g|png)$/i,
imageTypes: /\.(gif|jpe?g|png)$/i,
imageVersions: {
'thumbnail': {
width: 80,
height: 80
}
},
accessControl: {
allowOrigin: '*',
allowMethods: 'OPTIONS, HEAD, GET, POST, PUT, DELETE',
allowHeaders: 'Content-Type, Content-Range, Content-Disposition'
},
/* Uncomment and edit this section to provide the service via HTTPS:
ssl: {
key: fs.readFileSync('/Applications/XAMPP/etc/ssl.key/server.key'),
cert: fs.readFileSync('/Applications/XAMPP/etc/ssl.crt/server.crt')
},
*/
nodeStatic: {
cache: 3600 // seconds to cache served files
}
},
utf8encode = function (str) {
return unescape(encodeURIComponent(str));
},
fileServer = new nodeStatic.Server(options.publicDir, options.nodeStatic),
nameCountRegexp = /(?:(?: \(([\d]+)\))?(\.[^.]+))?$/,
nameCountFunc = function (s, index, ext) {
return ' (' + ((parseInt(index, 10) || 0) + 1) + ')' + (ext || '');
},
FileInfo = function (file) {
this.name = file.name;
this.size = file.size;
this.type = file.type;
this.deleteType = 'DELETE';
},
UploadHandler = function (req, res, callback) {
this.req = req;
this.res = res;
this.callback = callback;
},
serve = function (req, res) {
res.setHeader(
'Access-Control-Allow-Origin',
options.accessControl.allowOrigin
);
res.setHeader(
'Access-Control-Allow-Methods',
options.accessControl.allowMethods
);
res.setHeader(
'Access-Control-Allow-Headers',
options.accessControl.allowHeaders
);
var handleResult = function (result, redirect) {
if (redirect) {
res.writeHead(302, {
'Location': redirect.replace(
/%s/,
encodeURIComponent(JSON.stringify(result))
)
});
res.end();
} else {
res.writeHead(200, {
'Content-Type': req.headers.accept
.indexOf('application/json') !== -1 ?
'application/json' : 'text/plain'
});
res.end(JSON.stringify(result));
}
},
setNoCacheHeaders = function () {
res.setHeader('Pragma', 'no-cache');
res.setHeader('Cache-Control', 'no-store, no-cache, must-revalidate');
res.setHeader('Content-Disposition', 'inline; filename="files.json"');
},
handler = new UploadHandler(req, res, handleResult);
switch (req.method) {
case 'OPTIONS':
res.end();
break;
case 'HEAD':
case 'GET':
if (req.url === '/') {
setNoCacheHeaders();
if (req.method === 'GET') {
handler.get();
} else {
res.end();
}
} else {
fileServer.serve(req, res);
}
break;
case 'POST':
setNoCacheHeaders();
handler.post();
break;
case 'DELETE':
handler.destroy();
break;
default:
res.statusCode = 405;
res.end();
}
};
fileServer.respond = function (pathname, status, _headers, files, stat, req, res, finish) {
// Prevent browsers from MIME-sniffing the content-type:
_headers['X-Content-Type-Options'] = 'nosniff';
if (!options.inlineFileTypes.test(files[0])) {
// Force a download dialog for unsafe file extensions:
_headers['Content-Type'] = 'application/octet-stream';
_headers['Content-Disposition'] = 'attachment; filename="' +
utf8encode(path.basename(files[0])) + '"';
}
nodeStatic.Server.prototype.respond
.call(this, pathname, status, _headers, files, stat, req, res, finish);
};
FileInfo.prototype.validate = function () {
if (options.minFileSize && options.minFileSize > this.size) {
this.error = 'File is too small';
} else if (options.maxFileSize && options.maxFileSize < this.size) {
this.error = 'File is too big';
} else if (!options.acceptFileTypes.test(this.name)) {
this.error = 'Filetype not allowed';
}
return !this.error;
};
FileInfo.prototype.safeName = function () {
// Prevent directory traversal and creating hidden system files:
this.name = path.basename(this.name).replace(/^\.+/, '');
// Prevent overwriting existing files:
while (_existsSync(options.uploadDir + '/' + this.name)) {
this.name = this.name.replace(nameCountRegexp, nameCountFunc);
}
};
FileInfo.prototype.initUrls = function (req) {
if (!this.error) {
var that = this,
baseUrl = (options.ssl ? 'https:' : 'http:') +
'//' + req.headers.host + options.uploadUrl;
this.url = this.deleteUrl = baseUrl + encodeURIComponent(this.name);
Object.keys(options.imageVersions).forEach(function (version) {
if (_existsSync(
options.uploadDir + '/' + version + '/' + that.name
)) {
that[version + 'Url'] = baseUrl + version + '/' +
encodeURIComponent(that.name);
}
});
}
};
UploadHandler.prototype.get = function () {
var handler = this,
files = [];
fs.readdir(options.uploadDir, function (err, list) {
list.forEach(function (name) {
var stats = fs.statSync(options.uploadDir + '/' + name),
fileInfo;
if (stats.isFile() && name[0] !== '.') {
fileInfo = new FileInfo({
name: name,
size: stats.size
});
fileInfo.initUrls(handler.req);
files.push(fileInfo);
}
});
handler.callback({files: files});
});
};
UploadHandler.prototype.post = function () {
var handler = this,
form = new formidable.IncomingForm(),
tmpFiles = [],
files = [],
map = {},
counter = 1,
redirect,
finish = function () {
counter -= 1;
if (!counter) {
files.forEach(function (fileInfo) {
fileInfo.initUrls(handler.req);
});
handler.callback({files: files}, redirect);
}
};
form.uploadDir = options.tmpDir;
form.on('fileBegin', function (name, file) {
tmpFiles.push(file.path);
var fileInfo = new FileInfo(file, handler.req, true);
fileInfo.safeName();
map[path.basename(file.path)] = fileInfo;
files.push(fileInfo);
}).on('field', function (name, value) {
if (name === 'redirect') {
redirect = value;
}
}).on('file', function (name, file) {
var fileInfo = map[path.basename(file.path)];
fileInfo.size = file.size;
if (!fileInfo.validate()) {
fs.unlink(file.path);
return;
}
fs.renameSync(file.path, options.uploadDir + '/' + fileInfo.name);
if (options.imageTypes.test(fileInfo.name)) {
Object.keys(options.imageVersions).forEach(function (version) {
counter += 1;
var opts = options.imageVersions[version];
imageMagick.resize({
width: opts.width,
height: opts.height,
srcPath: options.uploadDir + '/' + fileInfo.name,
dstPath: options.uploadDir + '/' + version + '/' +
fileInfo.name
}, finish);
});
}
}).on('aborted', function () {
tmpFiles.forEach(function (file) {
fs.unlink(file);
});
}).on('error', function (e) {
console.log(e);
}).on('progress', function (bytesReceived) {
if (bytesReceived > options.maxPostSize) {
handler.req.connection.destroy();
}
}).on('end', finish).parse(handler.req);
};
UploadHandler.prototype.destroy = function () {
var handler = this,
fileName;
if (handler.req.url.slice(0, options.uploadUrl.length) === options.uploadUrl) {
fileName = path.basename(decodeURIComponent(handler.req.url));
if (fileName[0] !== '.') {
fs.unlink(options.uploadDir + '/' + fileName, function (ex) {
Object.keys(options.imageVersions).forEach(function (version) {
fs.unlink(options.uploadDir + '/' + version + '/' + fileName);
});
handler.callback({success: !ex});
});
return;
}
}
handler.callback({success: false});
};
if (options.ssl) {
require('https').createServer(options.ssl, serve).listen(port);
} else {
require('http').createServer(serve).listen(port);
}
}(8888));
;
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