var express = require('express'),
        serveIndex = require('serve-index'), //只能列表目錄，不能下載檔案？
        serveStatic = require('serve-static')
    ;

 /*
 $ brew install [email protected]
 不使用package.json的依賴安裝方法：以全域性模式（-g）安裝npm依賴，然後npm link命令建立符號連結
 $ npm install express -g
 $ npm link express
 */

var LOCAL_BIND_PORT = 3000; //express's port

var app = express()
app.set('x-powered-by', false)
app.set('strict routing', true); //路徑/a與/a/是不一樣的（但是/a/*需要單獨指出嗎？）
app.set('trust proxy', true); //與Nginx反向代理配合使用？

//Trick:
app.getOrPost = function(urlPattern, callback){
    app.get(urlPattern, callback);
    app.post(urlPattern, callback);
}

var REQUEST_GLOBAL_NUM = 1;
app.use(function requestNumbering(req, res, next){
    var this_request_id = REQUEST_GLOBAL_NUM++; //for dump data file naming;
    req.request_id = (""+this_request_id).padStart(10, "0")
    next()
})

app.use(function addServerSideIPAddress(req, res, next){//log輸出req.headers，FIXME：怎麼log輸出最終的res.headers？
    //console.log("["+req.request_id+"] logReqHeaders: req.ip=" + req.ip+" req.socket.localAddress="+req.socket.localAddress);
    //req.socketLocalIPv4Address = req.socket.localAddress.replace("::ffff:","").replace("::1","127.0.0.1")
    	//dirty hack to fix OS IPv6-first to use IPv4 address only
    console.log("["+req.request_id+"] req.headers: "+JSON.stringify(req.headers, null, 2));
    next();
})

//目錄列表及靜態檔案下載
app.get("/", function(req, res){
    res.redirect(302, "/f"); //test direct;
});

app.use('/f', serveIndex('/Users/chenzhixiang/', {'icons': true})) //This is Mac OS fs path;
var serve = serveStatic('/Users/chenzhixiang/')
app.get('/f/*', function(req, res){
    req.url = req.url.substring(2); //跳過url中的/f字首，把剩餘的部分對映為相對於/home/chenzx的檔案路徑
    console.log("["+req.request_id+"] GET static "+req.url);
    serve(req, res)
});

console.log(`Start static file server at ::${LOCAL_BIND_PORT}, Press ^ + C to exit`)
app.listen(LOCAL_BIND_PORT)

 

serve-index外掛預設生成的列表檢視不是那種詳情列表模式的。