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/*
* Copyright (C) 2008-2010 Nokia Corporation.
* Copyright (C) 2010 Andreas Henriksson <andreas@fatal.se>
*
* Author: Zeeshan Ali (Khattak) <zeeshanak@gnome.org>
* <zeeshan.ali@nokia.com>
*
* This file is part of Rygel.
*
* Rygel is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Rygel is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
using GUPnP;
/**
* HTTP GET request handler interface.
*/
internal abstract class Rygel.HTTPGetHandler: GLib.Object {
private const string TRANSFER_MODE_HEADER = "transferMode.dlna.org";
public Cancellable cancellable { get; set; }
// Add response headers.
public virtual void add_response_headers (HTTPGet request)
throws HTTPRequestError {
var mode = request.msg.request_headers.get_one (TRANSFER_MODE_HEADER);
if (mode != null) {
// FIXME: Is it OK to just copy the value of this header from
// request to response? All we do to entertain this header is to
// set the priority of IO operations.
request.msg.response_headers.append (TRANSFER_MODE_HEADER, mode);
}
// Yes, I know this is not the ideal code to just get a specific
// string for an HTTP header but if you think you can come-up with
// something better, be my guest and provide a patch.
var didl_writer = new GUPnP.DIDLLiteWriter (null);
var didl_item = didl_writer.add_item ();
try {
var resource = this.add_resource (didl_item, request);
if (resource != null) {
var tokens = resource.protocol_info.to_string ().split (":", 4);
assert (tokens.length == 4);
request.msg.response_headers.append ("contentFeatures.dlna.org",
tokens[3]);
}
} catch (Error err) {
warning ("Received request for 'contentFeatures.dlna.org' but " +
"failed to provide the value in response headers");
}
// Handle Samsung DLNA TV proprietary subtitle headers
if (request.msg.request_headers.get_one ("getCaptionInfo.sec") != null
&& (request.item as VideoItem).subtitles.size > 0) {
var caption_uri = request.http_server.create_uri_for_item
(request.item,
-1,
0, // FIXME: offer first subtitle only?
null);
request.msg.response_headers.append ("CaptionInfo.sec",
caption_uri);
}
request.msg.response_headers.append ("Connection", "close");
}
// Create an HTTPResponse object that will render the body.
public abstract HTTPResponse render_body (HTTPGet request)
throws HTTPRequestError;
protected abstract DIDLLiteResource add_resource (DIDLLiteItem didl_item,
HTTPGet request)
throws Error;
}
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