Mouselife——鼠标生活

        今天写小东西，需要用到HTTP Basic验证，网上找了居多资料都无法解决，群里四处询问，晚上11点20的时候一个群的管理员告诉了俺一个博客地址，打开一看，正式想要的东西，现在分享给大家，原文如下：

I am working on ActionScript3 API for Bloglines services, which requires HTTP Authentication for its two of the services. I was not able to set the header of a HTTP/GET request. Macromedia Flash Player allows you set the header only for POST requests. I discussed this issues with Ted Patrick and he told me how I can us Socket to achieve the desired and he was very kind to give a me code-snippet, which got me started. Thanks Ted.
Finally, I could implement a class(HTTPURLLoader) which allows me to:

• Add request-headers
• Do HTTP Authentication for GET URLs
• Handle HTTP status messages
• Read the complete response header

It basically connects to a HTTP server on port 80(hardcoded for now) and sends an HTTP/1.0 request so that server closes the connection immediately after response. I could use HTTP/1.1 to keep connection alive and do things. But then closing connection would require some more logic, either a timeout logic if there is no activity on socket then close the connection, or find the end delimiter of response and then close. So I chose the easiest approach
I am still working on it and there is a lot(bugs-fixing, optimization, code-commenting, removing hardcoded stuff etc) to be done. I just wanted to share whatever I have done so far. I think, idea is more important than the implementation.
Anyways, I also implemented Base64 in AS3 and also OPML parser for Bloglines. I would soon upload the entire Bloglines AS3 API source.
Download the code:
Usage:-

<mx:Application xmlns:mx="http://www.macromedia.com/2005/mxml" creationComplete="onAppInit()">
<mx:Script>
import flash.net.URLRequest;
import flash.net.URLRequestHeader;
import com.abdulqabiz.net.HTTPURLLoader;
import com.abdulqabiz.crypto.Base64;
private var loader:HTTPURLLoader;
private var END_POINT:String = "http://rpc.bloglines.com/";
//you need to set your email/password required for Bloglines access.
private var email:String = "YOUR_EMAIL_FOR_BLOGLINES";
private var password:String = "YOUR_BLOGLINES_PASSWORD";
private function onAppInit()
{
loader = new HTTPURLLoader();
loader.addEventListener("complete", onComplete);
loader.addEventListener("httpStatus", onHTTPStatus);
loader.addEventListener("progress", onProgress);
//for simplicity,not handling following three events.
//loader.addEventListener("close", onClose);
//loader.addEventListener("ioError", onIOError);
//loader.addEventListener("securityError",onSecurityError);
}
private function onComplete(event:Event)
{
//headers stroed as name-value(hash map)
var rh:Object = HTTPURLLoader(event.target).responseHeaders;
var str:String = "";
for(var p:String in rh)    str+= p + ":" + rh[p] + "\n";
console.text+="Response Headers: \n" + str + "\n\n";
//data property holds the content
console.text+="Body Content:\n" + HTTPURLLoader(event.target).data + "\n\n";
}
private function onProgress(event:ProgressEvent)
{
//bytesTotal is not accurate, and its 0 if server doesn't send Content-Length header.
console.text+= "Event: progress:-\n" + "bytesLoaded: " + event.bytesLoaded + "\n\n";
}
private function onHTTPStatus(event:HTTPStatusEvent)
{
//if httpStatus is 401, 403, 404, 500, 501, socket is closed.
console.text+= "Event: httpStatus (" + event.status + ")\n\n";
}
private function loadURL()
{
var request:URLRequest = new URLRequest();
//call listsubs method of Bloglines
request.url = END_POINT + "listsubs";
var credentials:String = Base64.encode(email + ":" + password);
//create HTTP Auth request header
var authHeader:URLRequestHeader = new URLRequestHeader("Authorization","Basic " + credentials);
//add the header to request
request.requestHeaders.push(authHeader);
//make the request.
loader.load(request);
}
</mx:Script>
<mx:Button label="Load URL" click="loadURL()"/>
<mx:TextArea id="console" width="100%" height="100%"/>
</mx:Application>

原文链接：http://www.abdulqabiz.com/blog/archives/2006/03/03/http-authentication-for-httpget-requests-using-actionscript-3/

程序用到的类文章里面有下载链接，上面是一个flex示例，当然你可以在flash中使用它，例如如下代码：

package {
	import com.dynamicflash.util.Base64;
	import com.abdulqabiz.net.HTTPURLLoader;
	import flash.display.*;
	import flash.text.TextField;
	import flash.events.*;
	import flash.net.*;
	import com.adobe.serialization.json.*;
	public class main extends Sprite {
		public function main() {
			var urlR:URLRequest=new URLRequest("http://api.t.cnfol.com/account/verify_credentials.xml");
			var credentials:String = Base64.encode("8850:123456");
			var authHeader:URLRequestHeader = new URLRequestHeader("Authorization","Basic " + credentials);
			urlR.requestHeaders.push(authHeader);
			var loader:HTTPURLLoader=new HTTPURLLoader();
			loader.load(urlR);
			loader.addEventListener("complete", onComplete);
			loader.addEventListener("httpStatus", onHTTPStatus);
			loader.addEventListener("progress", onProgress);
		}
		private function onComplete(event:Event) {
			//headers stroed as name-value(hash map)
			var rh:Object = HTTPURLLoader(event.target).responseHeaders;
			var str:String = "";
			for (var p:String in rh) {
				str+= p + ":" + rh[p] + "\n";
			}
			console.appendText("Response Headers: \n" + str + "\n\n");
			//data property holds the content
			console.appendText("Body Content:\n" + HTTPURLLoader(event.target).data + "\n\n");
		}
		private function onProgress(event:ProgressEvent) {
			//bytesTotal is not accurate, and its 0 if server doesn't send Content-Length header.
			console.appendText( "Event: progress:-\n" + "bytesLoaded: " + event.bytesLoaded + "\n\n");
		}
		private function onHTTPStatus(event:HTTPStatusEvent) {
			//if httpStatus is 401, 403, 404, 500, 501, socket is closed.
			console.appendText( "Event: httpStatus (" + event.status + ")\n\n");
		}
	}
}

老规矩，请勿直接复制上面的ActionScript代码，由于插件问题，其中的某些字符被替换，如下复制，请点击代码框上部的"viewcode"在新视窗中打开复制。