Add cache support for local server

kingFighter · kingFighter · commit 123b6c4898d7 · 2013-08-05T11:30:03.000+08:00
diff --git a/tests/index.html b/tests/index.html
@@ -33,7 +33,7 @@
   var path = require('path');
   var program = require('commander');
   var local_server = require('./server/server');
-  
+
   //socket server
   var net = require('net');
   global.server = net.createServer();
diff --git a/tests/server/config.js b/tests/server/config.js
@@ -0,0 +1,4 @@
+exports.Expires = {
+    fileMatch: /^(.gif|.png|.jpg|.js|.css)$/ig,
+    maxAge: 606024365
+};
diff --git a/tests/server/server.js b/tests/server/server.js
@@ -2,9 +2,12 @@ var http = require("http"),
 url = require("url"),
 path = require("path"),
 fs = require("fs"), 
+config = require('./config');
 ports = new Array(8123,8124),
 servers = new Array(ports.length);
 
+var res_save = new Array();
+
 types = {
     ".css": "text/css",
     ".gif": "image/gif",
@@ -39,11 +42,25 @@ function request_listener(req, res) {
 
     path.exists(pathname,function(exists){
 	if(exists){
-	    var content_type = types[path.extname(pathname)] || "text/plain";
-	    res.writeHead(200, {"Content-Type": content_type});
+	    var ext = path.extname(pathname);
+	    var content_type = types[ext] || "text/plain";
+
+	    res.setHeader("Content-Type", content_type);
 
-	    fs.readFile(pathname,function (err,data){
-		res.end(data);
+	    fs.stat(pathname, function (err, stat) {
+		var last_modified = stat.mtime.toUTCString();
+		var if_modified_since = "If-Modified-Since".toLowerCase();
+		res.setHeader("Last-Modified", last_modified);
+		
+		if (req.headers[if_modified_since] && last_modified == req.headers[if_modified_since]) {
+		    res_save.push({"status": 304, 'pathname':req.url.slice(1)});
+		    res.writeHead(304, "Not Modified");
+		    res.end();
+		} else {
+		    fs.readFile(pathname,function (err,data){
+			res.end(data);
+		    });
+		}
 	    });
 	} else {
 	    res.writeHead(404, {"Content-Type": "text/html"});
@@ -65,3 +82,5 @@ for (var i = 0; i < ports.length; i++) {
     servers[i].on('error', error_handler);
     console.log("Server running at http://127.0.0.1:" + ports[i]);
 }
+
+exports.res_save = res_save;
