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server.js
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server.js
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var express = require("express"),
http = require("http"),
url = require("url");
var app = express.createServer(),
port = process.env.PORT || 3000;
app.configure(function(){
app.use(app.router);
app.use(function(req, res, next) {
// Filter out non-content. Ideally this would be in a subdir
// but didn't want to move as the focus is the static client content.
if ('/' === req.url
|| '/index.html' === req.url
|| '/index.htm' === req.url
|| /^\/css\//.test(req.url)
|| /^\/lib\//.test(req.url)
|| /^\/js\//.test(req.url)) {
next();
} else {
res.send(404);
}
});
app.use(express.static(__dirname));
});
app.get('/proxy', function(req, res){
var hrefParam = req.param("href"),
href = url.parse(hrefParam),
options = {
host: href.hostname,
port: href.port || 80,
path: (href.pathname || "") + (href.search || "")
},
len = 0;
http.get(options, function(sourceRes) {
sourceRes.on("data", function(chunk) {
res.write(chunk);
len += chunk.length;
});
sourceRes.on("end", function() {
console.info("proxied url", hrefParam, "length", len, "status", sourceRes.statusCode);
res.end();
});
res.writeHead(sourceRes.statusCode, sourceRes.headers);
}).on("error", function(e) {
console.info("error", e);
res.send(502);
});
});
console.log("Starting gradient scanner server on port", port);
app.listen(port);