update

lib/httpsServerMgr.js

@@ -0,0 +1,95 @@
+//manage https servers
+var getPort    = require('./getPort'),
+    async          = require("async"),
+    http           = require('http'),
+    https          = require('https'),
+    fs             = require('fs'),
+    net            = require('net'),
+    url            = require('url'),
+    certMgr        = require("./certMgr"),
+    requestHandler = require("./requestHandler");
+
+if(!fs.existsSync("cert/tmpCert")){
+    fs.mkdirSync("cert/tmpCert");
+}
+
+var DEFAULT_RELEASE_TIME = 120*1000;
+
+module.exports =function(){
+    var self = this;
+    self.serverList = {
+        /* schema sample 
+        "www.alipay.com":{
+            port:123,
+            server : serverInstance,
+            lastestUse: 99999 //unix time stamp
+        }
+        */
+    };
+
+    //fetch a port for https server with hostname
+    this.fetchPort = function(hostname,userCB){
+        var serverInfo = self.serverList[hostname],
+            port;
+
+        //server exists
+        if(serverInfo){
+            console.log("exists :" + hostname );
+            serverInfo.lastestUse = new Date().getTime();
+            port = serverInfo.port;
+            userCB && userCB(null,port);
+
+        //create server with corresponding CA
+        }else{
+            console.log("creating :" + hostname );
+            async.series([
+                //find a clean port
+                function(callback){
+                    getPort(function(cleanPort){
+                        port = cleanPort;
+                        callback(null,port);
+                    });
+                }
+
+                //create server  
+                ,function(callback){
+                    certMgr.getCertificate(hostname,function(err,keyContent,crtContent){
+                        var server = createHttpsServer(port,keyContent,crtContent);
+                        self.serverList[hostname] = {
+                            port   : port,
+                            server : server,
+                            lastestUse : new Date().getTime()
+                        };
+                        console.log("https server @port __portNum for __HOST established".replace(/__portNum/,port).replace(/__HOST/,hostname));
+                        callback && callback(null,port);
+                        
+                    });
+                }
+            ],function(err,result){
+                userCB && userCB(err,result[result.length - 1]);
+            });
+        }
+    };
+
+    //clear servers which have been idle for some time
+    setInterval(function(){
+        var timeNow = new Date().getTime();
+        for(var serverName in self.serverList){
+            var item = self.serverList[serverName];
+            if( (timeNow - item.lastestUse) > DEFAULT_RELEASE_TIME){
+                item.server.close();
+                delete self.serverList[serverName];
+                console.log("https server released : " + serverName);
+            }
+        }
+
+    },DEFAULT_RELEASE_TIME);
+}
+
+function createHttpsServer(port,keyContent,crtContent){
+    return https.createServer({
+        key : keyContent,
+        cert: crtContent
+    },requestHandler).listen(port);
+}
+