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@nmrugg
Last active September 25, 2015 00:27
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A simple node.js web server
/*jslint onevar: true, undef: true, newcap: true, nomen: true, regexp: true, plusplus: true, bitwise: true, node: true, indent: 4, white: false */
/// Usage: node static_server.js PORT
var http = require("http"),
url = require("url"),
path = require("path"),
fs = require("fs"),
qs = require("querystring"),
port = process.argv[2] || 80, /// Defaults to port 80
dir = process.argv[2] || process.cwd(); /// Defaults to current working directory
/// Start the server.
http.createServer(function (request, response)
{
var filename,
uri = qs.unescape(url.parse(request.url).pathname),;
filename = path.join(dir, uri);
/// Make sure the URI is valid and withing the current working directory.
if (uri.substr(0,4) === "/../" || uri.substr(0, 1) !== "/" || path.relative(dir, filename).substr(0, 3) === "../") {
response.writeHead(404, {"Content-Type": "text/plain"});
response.write("404 Not Found\n");
response.end();
return;
}
fs.stat(filename, function (err, stats)
{
if (!err && stats.isDirectory()) {
filename += "/index.html";
}
fs.exists(filename, function(exists) {
if (!exists) {
response.writeHead(404, {"Content-Type": "text/plain"});
response.write("404 Not Found\n");
response.end();
return;
}
response.writeHead(200);
/// Stream the data out to prevent massive buffers on large files.
fs.createReadStream(filename, {"bufferSize": 4096}).pipe(response);
});
});
}).listen(parseInt(port, 10));
console.log("Static file server running at\n => http://localhost:" + port + "/\nCTRL + C to shutdown");
@nmrugg
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nmrugg commented Mar 12, 2011

Made it pass JSLint.

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nmrugg commented Oct 5, 2013

Made sure to parse the URI.

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nmrugg commented Oct 5, 2013

Stream data out to prevent massive buffers on large files.

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