Flex Reader on Google App Engine

<?xml version="1.0" encoding="utf-8"?>
<iic:ClosableTitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" 
   xmlns:iic="net.ivanidris.flex.components.*" creationComplete="init();">
    <mx:Script source="Find.as"/>
    <mx:VBox>
      <mx:Grid>
         <mx:GridRow>
              <mx:GridItem>
                  <mx:Label text="Find feeds based on keywords"/>
              </mx:GridItem>
         </mx:GridRow>
           <mx:GridRow>
              <mx:GridItem>
                  <mx:TextInput id="keywords"/> 
              </mx:GridItem>
              <mx:GridItem>
                  <mx:Button id="find" label="Find" click="onFind();"/>  
              </mx:GridItem>
           </mx:GridRow>   
           <mx:GridRow>
              <mx:GridItem>
                  <mx:Label text="For instance cnn or news"/>
              </mx:GridItem>
           </mx:GridRow>
       </mx:Grid>
 
        <mx:DataGrid dataProvider="{feeds}" width="782">
            <mx:columns>
                <mx:DataGridColumn headerText="Add" dataField="add" width="50" textAlign="center">
                    <mx:itemRenderer>
                        <mx:Component>
                            <mx:CheckBox click="data.add=!data.add;"  selected="{data.add}"/>            
                        </mx:Component>                        
                    </mx:itemRenderer>
                </mx:DataGridColumn>
                <mx:DataGridColumn headerText="URL" dataField="url"/>
                <mx:DataGridColumn headerText="Title" dataField="title"/>
            </mx:columns>            
        </mx:DataGrid>
    </mx:VBox>
    <iic:PushButton x="10" y="256" label="Add Selected Feeds" id="addSelected" enabled="false" click="onAddSelected();"/>
</iic:ClosableTitleWindow>

    import com.adobe.serialization.json.JSON;
 
    import mx.collections.ArrayCollection;
    import mx.controls.Alert;
    import mx.managers.PopUpManager;
    import mx.rpc.events.FaultEvent;
    import mx.rpc.events.ResultEvent;
    import mx.rpc.http.HTTPService;
 
    import net.ivanidris.flexreader.FeedInfo;
 
    [Bindable]
    private var feeds: ArrayCollection;
 
    private var loader:URLLoader;
 
    private function init():void {
        keywords.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
    }
 
    private function onFind():void {
         var url:String = '/findFeed.py?q=' + keywords.text;
         var request:URLRequest = new URLRequest(url);
         loader = new URLLoader(request);
         loader.addEventListener("complete", onServerResponse);
    }
 
    private function onServerResponse(e:Event):void {
        var feed: FeedInfo;
        feeds = new ArrayCollection();
 
        var json:Object = JSON.decode(loader.data);
 
        for each(var i in json) {
            feed = new FeedInfo();
            feed.url = i.url;
            feed.title = i.title;
            feeds.addItem(feed);
        }
 
        if(feeds.length > 0) {
         addSelected.enabled = true;
        }
    }
 
    override public function onKeyDown(event:KeyboardEvent) :void {
        // process enters
        if(event.charCode == 13 && keywords.text.length > 0) {
            onFind();
        }
    }
 
 
    public function useHttpService(parameters:Object):void { 
        var service:HTTPService;
        service = new HTTPService(); 
        service.url = "/addSelectedFeeds.py"; 
        service.method = "POST"; 
        service.addEventListener("result", httpResult); 
        service.addEventListener("fault", httpFault); 
        service.send(parameters); 
    } 
 
    public function httpResult(event:ResultEvent):void { 
      removeMe();
    } 
 
    public function httpFault(event:FaultEvent):void { 
        var faultstring:String = event.fault.faultString; 
        Alert.show(faultstring); 
    } 
 
    public function onAddSelected():void {
      var len:int = feeds.length;
      var result:Array = new Array();
 
        for (var i:int=0;i<len;i++)
        {
            var feed:FeedInfo = FeedInfo(feeds.getItemAt(i));
 
            if (feed.add)
            {
               result.push(feed);
            }
        }
 
        if(result.length > 0) {
           var parameters:Object = new Object();
           parameters.data = JSON.encode(result);
           useHttpService(parameters);
        }
    }

import cgi
import urllib
from google.appengine.api import urlfetch
from django.utils import simplejson
import re
 
form = cgi.FieldStorage()
query = urllib.quote(form.getfirst("q", ""))
 
url = "http://ajax.googleapis.com/ajax/services/feed/find?v=1.0&q=" + query
result = urlfetch.fetch(url)
resultList = []
 
print 'Content-type: text/plain'
print ''
 
if result.status_code == 200:
    json = simplejson.loads(result.content.strip())
 
    if json['responseStatus'] == 200:
        for entry in json['responseData']['entries']:
            text = re.sub('<.*?>', '', entry['title'])
            filteredDict = dict(title = text,
                url = entry['url'])
            resultList.append(filteredDict)
 
jsonString = simplejson.dumps( resultList )
print jsonString.strip()

import cgi
from net.ivanidris.flexreader import Feed
from django.utils import simplejson
 
form = cgi.FieldStorage()
data = form.getfirst("data", "")
 
json = simplejson.loads(data)
 
for i in json:
    feed = Feed.Feed(key_name = i['url'], link = i['url'], title = i['title'])
    feed.put()