[rygel] core: Error on streaming request for unstreamable

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 91b9110e9d804e670b823f219e283f37d40bc9f0
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Thu Aug 19 15:56:33 2010 +0300

    core: Error on streaming request for unstreamable
    
    Throw an error on streaming request for unstreamable content. This satisfies
    DLNA requirement 7.4.49.4.

 src/rygel/rygel-http-get.vala |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/src/rygel/rygel-http-get.vala b/src/rygel/rygel-http-get.vala
index 1b24b2c..fa1a78e 100644
--- a/src/rygel/rygel-http-get.vala
+++ b/src/rygel/rygel-http-get.vala
@@ -29,6 +29,8 @@ using Gst;
  * Responsible for handling HTTP GET & HEAD client requests.
  */
 internal class Rygel.HTTPGet : HTTPRequest {
+    private const string TRANSFER_MODE_HEADER = "transferMode.dlna.org";
+
     public Thumbnail thumbnail;
     public Subtitle subtitle;
     public HTTPSeek seek;
@@ -66,6 +68,17 @@ internal class Rygel.HTTPGet : HTTPRequest {
 
         if (this.handler == null) {
             this.handler = new HTTPIdentityHandler (this.cancellable);
+
+            header = this.msg.request_headers.get_one (TRANSFER_MODE_HEADER);
+
+            if (header == "Streaming" &&
+                (!this.item.should_stream () ||
+                 this.subtitle != null ||
+                 this.thumbnail != null)) {
+                throw new HTTPRequestError.UNACCEPTABLE (
+                                        "Streaming mode not supported for '%s'",
+                                        item.id);
+            }
         }
 
         yield this.handle_item_request ();