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server.js
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server.js
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var parser = require('commander');
var fs = require('fs');
var httpProxy = require('http-proxy').createProxyServer({});
var serveStatic = require('serve-static');
var finalhandler = require('finalhandler');
parser
.version('0.1.0')
.option('-H, --hosts [hostsfile]', 'The path to the Hosts file', null)
.parse(process.argv);
var hostManager = require('./hostsFileManager.js')(parser.hosts);
var http = require('http');
var path = require('path');
var matches;
var staticServers = {};
function refreshHosts(){
matches = hostManager.domains();
}
var router = http.createServer(function(req, res){
refreshHosts();
if(req.headers.host in matches){
if(matches[req.headers.host].type == "PORT"){
var port = matches[req.headers.host].target;
httpProxy.web(req, res, {target: 'http://localhost:' + port}, function(e){
if(e.message.indexOf('ECONNREFUSED') != -1){
console.log('Unable to access local webserver at port ' + port);
}else{
console.log(e.name + '\t' + e.message);
}
res.end('ERROR: Unable to access local webserver at port ' + port);
});
// console.log(req.headers.host + " --> " + 'localhost:' + port);
}else if(matches[req.headers.host].type == "DIR"){
var rootDir = matches[req.headers.host].target;
if(rootDir in staticServers){
}else{
staticServers[rootDir] = serveStatic(rootDir, {
index: ['index.html', 'index.htm'],
fallthrough: true
});
}
var done = finalhandler(req, res);
staticServers[rootDir](req, res, done);
}
}else{
res.end(req.headers.host);
console.log(req.headers.host + " --> ???");
}
});
refreshHosts();
router.on('error', function(e){
if(e.message.indexOf('EACCES') != -1){
console.log('Inadequate permissions to open port 80.');
console.log('Please run using administrator privileges.');
}else{
console.log(e.name + '\t' + e.message);
}
});
fs.writeFileSync(__dirname + '/server.pid', process.pid);
router.listen(80, function(){
console.log('Hostmatch proxy running at port 80');
process.setuid && process.setuid(502);
});
function exitHandler(code){
if(fs.existsSync(__dirname + '/server.pid'))
fs.unlinkSync(__dirname + '/server.pid');
process.exit(code);
}
process.on('exit', exitHandler);
process.on('SIGINT', exitHandler);
process.on('SIGTERM', exitHandler);
process.on('uncaughtException', exitHandler);