Quick solution for Flex deployment with SSL Accelerators / Proxies

最新推荐文章于 2025-12-01 10:25:34 发布

转载最新推荐文章于 2025-12-01 10:25:34 发布 · 447 阅读

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#deployment #ssl #flex #application #processing #redirect

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本文介绍了一种在运行时将本地开发的Flex应用从HTTP切换到HTTPS的方法，通过检查应用程序是否通过HTTPS部署，并相应地重定向远程请求。

Once you developed and tested Flex application locally you need to move it to the secured hosting environment to share it with the world. Usually, for simplicity/performance enterprises deploy J2EE servers behind standalone SSL accelerators/load balancers/proxies. It means that client sends data via SSL channel to SSL appliance, which in turn calls your server on the intranet via unsecured HTTP to minimize the processing cost.
You can configure the channel/endpoint in services-config.xml, but it would mean separate build for deployment. Here is an alternative “runtime” approcah:

import mx.messaging.config.ServerConfig;
private function preinitializeApplication() : void {
const reUrl:RegExp = /(http|https):////(([^:]+)(:([^@]+))?@)?([^://]+)(:([0-9]{2,5}))?(//([/w#!:.?+=&%@!/-//]+))?/;
const appUrl:String = Application.application.url;
const parts:Array = reUrl.exec(appUrl);
if (!parts)
throw new Error(”Invalid URL: ” + appUrl);
/*
(”Protocol:” + parts[1]);
(”User: ” + parts[3]);
(”Pass: ” + parts[5]);
(”Host: ” + parts[6]);
(”Port: ” + parts[8]);
(”Path: ” + parts[10]);
*/
if (parts[1] == “https” ) {
const channels:XMLList = ServerConfig.xml..channels.channel;
for (var channel:String in channels) {
if (channels[channel].@type==”mx.messaging.channels.AMFChannel”) {
channels[channel].@type=”mx.messaging.channels.SecureAMFChannel”
var endpoint : XML = channels[channel].endpoint[0];
var uri:String = endpoint.@uri
uri = uri.replace( /^http:/, “https:” );
uri = uri.replace( //{server.port/}/, “443″ );
endpoint.@uri = uri;
}
}
}
}

As you can see, we check if the application is deployed over https and redirect regular remoting requests to https thus modifying deployment descriptors in the runtime.