Page view counter
Silverlight & Authorization plugin for Windows Media Services - Referral URL Subscribe to this thread
Last post 12-31-2008 9:59 AM by bryant. 1 replies.
Sort Posts:
12-30-2008 10:39 AM
Beer [B]Silverlight & Authorization plugin for Windows Media Services - Referral URL

Hi

I'm trying  an Authorization plugin for WMS to validate referral URL from UserContext, it means, WMService will stream only to  request come from particular website, plugin wrote in C# and its WORKING fine with embedded Windows Media Player 9 or later.

now testing the same plugin against embedded Silverlight (ver 2.0/ASP.Net 3.5) Mediaplayer (  <asp:MediaPlayer ... )   its seems Silverlight player is not sending the Referral URL??***  to WMServices (windows 2003 Enterprise)

i'm Authorizing only at WMS_EVENT_PLAY, its working fine with WMP but Silverlight Player throwing some error

System.Runtime.InteropServices.COMException (0x8002000B): Invalid index. (Exception from HRESULT: 0x8002000B (DISP_E_BADINDEX))
   at Microsoft.WindowsMediaServices.Interop.IWMSContext.GetStringValue(String pstrName, Int32 lNameHint, String& pstrValue, Int32 lOptions)
   at MyWMSNameSpace.MyWMSAuthorizationPlugin.Microsoft.WindowsMediaServices.Interop.IWMSEventAuthorizationPlugin.AuthorizeEvent(WMS_EVENT& i__Event, IWMSContext io__UserContext, IWMSContext io__PresentationContext, IWMSCommandContext io__CommandContext, IWMSEventAuthorizationCallback i__ServerCallback, Object i__Context)


i tried some other events like WMS_EVENT_OPEN , WMS_EVENT_CONNECT but WMP itself throwing error.

what i'm looking for is,

1) i want to clarify whether Silverlight supports Referral URL info to WMServices??
2)  if yes then at Which Event is sending the info to WMService
3) or i'm making any mistake in Authorizing  or in  Event Handling  because i'm getting error in my plugin for other Events


here is the main part of the code
------------------------------------------------------------------------------------

//Identify the events the plug-in can authorize
 object IWMSEventAuthorizationPlugin.GetAuthorizedEvents()
        {
                WMS_EVENT_TYPE[] l__AuthorizeEvents ={WMS_EVENT_TYPE.WMS_EVENT_PLAY};
                return (object) l__AuthorizeEvents;          
         }


void IWMSEventAuthorizationPlugin.AuthorizeEvent
            (
                    ref WMS_EVENT i__Event,
                    IWMSContext io__UserContext,
                    IWMSContext io__PresentationContext,
                    IWMSCommandContext io__CommandContext,
                    IWMSEventAuthorizationCallback i__ServerCallback,
                    object i__Context
            )
        {

   string l__URLRefererString = string.Empty;
                io__UserContext.GetStringValue
                    (
                        WMSDefines.WMS_USER_REFERER,
                        WMSDefines.WMS_USER_REFERER_ID,
                        out l__URLRefererString,
                        0
                    );
  

              if (l__URLRefererString == "MyWebsite")
                {
                   // value of ACCESS.
                }
                else
                {
                    // value of ACCESSDENIED.                
                }
       }

-------------------------------------------------------------------------------------------------------------------------------------

 Note *** : i think i have answer for my own question 1,  When i checked the WMServices Client Log , i could see the Referral URL entry for Silverlight Embedded page.


Any suggestions

Thanks in advance

- Uthay
  www.uk-softsolutions.com

Uthay

Loading...
Joined on 01-24-2007
Toronto
Posts 1
12-31-2008 9:59 AM
Marked as Answer
Re: Silverlight & Authorization plugin for Windows Media Services - Referral URL

All Silverlight requests are made through the browser, so it should pass along all the same information as normal browser requests.

-- bryant

Blog | Twitter
_________________
Dont forget to click "Mark as Answer" on the post that helped you.

bryant

Loading...
Joined on 10-22-2002
Simi Valley, CA
Posts 1,153
Microsoft Communities