nodejs/requestHandler.js at master · rishabhc/nodejs · GitHub

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var querystring = require('querystring');
var fs = require('fs');
var formidable = require('formidable');

function start(response,request) {
	console.log("Start request handler");
	var body = '<html>'+
			'<head>'+
			'<meta http-equiv="Content-Type" '+
			'content="text/html; charset=UTF-8" />'+
			'</head>'+
			'<body>'+
			'<form action="/upload" enctype="multipart/form-data" '+
			'method="post">'+
			'<input type="file" name="upload" multiple="multiple">'+
			'<input type="submit" value="Upload file" />'+
			'</form>'+
			'</body>'+
			'</html>';
	response.writeHead(200, {"Content-Type": "text/html"});
	response.write(body);
	response.end();

}

function upload(response,request){
	console.log("Upload request handler");

	var form = formidable.IncomingForm();
	form.parse(request,function(error,fields,files){
		console.log("parsing done");
		fs.rename(files.upload.path,"/tmp/test.jpg",function(error){
			if(error) {
				fs.unlink("/tmp/test.jpg");
				fs.rename(files.upload.path,"/tmp/test.jpg");
			}
		});
		response.writeHead(200,{"Content-Type":"text/html"});
		response.write("received image:<br />");
		response.write("<img src = '/show' />");
		response.end();
	});
}

function show(response,request) {
	console.log("Show request handler");
	fs.readFile("/tmp/test.jpg","binary",function(error,file){
		if(error) {
			response.writeHead(500,{"Content-Type":"text/plain"});
			response.write(error+'\n');
			response.end();
		}
		else {
			response.writeHead(200,{"Content-Type":"image/jpg"});
			response.write(file,"binary");
			response.end();
		}
	})
}

exports.start = start;
exports.upload = upload;
exports.show = show;