screen scraping javascript

Question

so I am scraping javascript from a site and it returns the below code, but if course this will not show the flash video or render the javscript since im just using simple php dom parsers to return the HTML. Is there a way to run this javascript to return the embedded object it outputs?

<script type="text/javascript">
    var attributes = {};
    attributes.id = "flashMovie";
    var flashvars = {};
    flashvars.startjs = "playerLoaded";
    flashvars.activeColor = "83A7D2";
    flashvars.themeColor = "FFFFFF";
    flashvars.config = escape("http://example/0a1cee42025e9e49d25d.fid?key=c3e868caa037531d0d709e238d93013a&VID=189988&catID=1,26,43,50&rollover=1&startThumb=19&embed=&utm_source=&multiview=0&premium=1&country=&user=0&vip=0&heightHD=480p&cd=u&ref=browse");
    //flashvars.config = escape("http://example.com/0a1cee42025e9e49d25d.fid?key=c3e868caa037531d0d709e238d93013a&VID=189988&catID=1,26,43,50&rollover=1&startThumb=19&premium=1&country=&user=0&vip=0&cd=u&ref=browse");
    flashvars.config2 = escape("http://www.example.com/player_feed_local.php?vid=189988&CHIDS=1,26,43,50&link=http%253A%252F%252Fwww.example.com%252Fjump%252FTesting-Video%252Fvideo189988%253Fref%253Dbrowse");
    var params = {};
    params.startjs = "playerLoaded";
    params.loop = "false";
    params.quality = "best";
    params.bgcolor = "#000000";
    params.allowfullscreen = "true";
    params.allowscriptaccess = "always";
    params.wmode= "opaque";
    swfobject.embedSWF("http://www.example.com/Player_v1.11.9.7.swf?v=1.0", "flashMovie", "100%", "500", "9", "expressInstall.swf", flashvars, params, attributes);
</script>

Answer 1

Use a browser render engine like webkit to execute the JavaScript, and then you can extract the resulting html.

Here is some example code: http://webscraping.com/blog/Scraping-JavaScript-webpages-with-webkit/

Answer 2

You can run Javascript just like a browser (with a real DOM and all of that) and extract data out using tools like PhantomJS or Crowbar.