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var common = require('../common');
var assert = require('assert');
var util = require('util'),
fs = require('fs'),
http = require('http'),
url = require('url');
var chunk = '01234567890123456789';
// Produce a very large response.
var chargen = http.createServer(function(req, res) {
var len = parseInt(req.headers['x-len'], 10);
assert.ok(len > 0);
res.writeHead(200, {'transfer-encoding': 'chunked'});
for (var i = 0; i < len; i++) {
if (i % 1000 == 0) common.print(',');
res.write(chunk);
}
res.end();
});
chargen.listen(9000, ready);
// Proxy to the chargen server.
var proxy = http.createServer(function(req, res) {
var c = http.createClient(9000, 'localhost');
var len = parseInt(req.headers['x-len'], 10);
assert.ok(len > 0);
var sent = 0;
c.addListener('error', function(e) {
console.log('proxy client error. sent ' + sent);
throw e;
});
var proxy_req = c.request(req.method, req.url, req.headers);
proxy_req.addListener('response', function(proxy_res) {
res.writeHead(proxy_res.statusCode, proxy_res.headers);
var count = 0;
proxy_res.addListener('data', function(d) {
if (count++ % 1000 == 0) common.print('.');
res.write(d);
sent += d.length;
assert.ok(sent <= (len * chunk.length));
});
proxy_res.addListener('end', function() {
res.end();
});
});
proxy_req.end();
});
proxy.listen(9001, ready);
var done = false;
function call_chargen(list) {
if (list.length > 0) {
var len = list.shift();
common.debug('calling chargen for ' + len + ' chunks.');
var recved = 0;
var req = http.createClient(9001, 'localhost').request('/', {'x-len': len});
req.addListener('response', function(res) {
res.addListener('data', function(d) {
recved += d.length;
assert.ok(recved <= (len * chunk.length));
});
res.addListener('end', function() {
assert.ok(recved <= (len * chunk.length));
common.debug('end for ' + len + ' chunks.');
call_chargen(list);
});
});
req.end();
} else {
console.log('End of list. closing servers');
proxy.close();
chargen.close();
done = true;
}
}
serversRunning = 0;
function ready() {
if (++serversRunning < 2) return;
call_chargen([100, 1000, 10000, 100000, 1000000]);
}
process.addListener('exit', function() {
assert.ok(done);
});
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