nodedemo/requestHandler.js at master · Abhay32/nodedemo · GitHub

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

function start(response, request) {
	console.log("Request handler 'start' was called.");

	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" />' +
		'<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("Request handler 'upload' was called.");
	var form = new formidable.IncomingForm();
	console.log("about to parse.");
	form.parse(request, function(err, fields, files) {
		console.log("parsing done.");
		fs.renameSync(files.upload.path, "/tmp/test.png");
		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("Request handler 'show' was called.");
	fs.readFile("/tmp/test.png", "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/png"
			});
			response.write(file, "binary");
			response.end();
		}
	});
}

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