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/*
* Copyright (C) 2008-2009 Nokia Corporation.
* Copyright (C) 2012 Intel Corporation.
*
* Author: Zeeshan Ali (Khattak) <zeeshanak@gnome.org>
* <zeeshan.ali@nokia.com>
* Jens Georg <jensg@openismus.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.
*/
public errordomain Rygel.HTTPSeekError {
INVALID_RANGE = Soup.KnownStatusCode.BAD_REQUEST,
OUT_OF_RANGE = Soup.KnownStatusCode.REQUESTED_RANGE_NOT_SATISFIABLE,
}
public enum Rygel.HTTPSeekType {
BYTE,
TIME
}
/**
* HTTPSeek is an abstract representation of a ranged HTTP request.
*
* It can be one of:
*
* - The classic Range request (seek_type == HTTPSeekType.BYTE), with start and stop in bytes.
* - The DLNA-Specific "TimeSeekRange.dlna.org" request (seek_type == HTTPSeekType.TIME) with start and stop in microseconds.
*/
public abstract class Rygel.HTTPSeek : GLib.Object {
/**
* Identifies whether this is a class Range request or a DLNA-specific
* "TimeSeekRange.dlna.org" request.
*/
public HTTPSeekType seek_type { get; protected set; }
public Soup.Message msg { get; private set; }
/**
* The start of the range as a number of bytes (classic) or as microseconds
* (DLNA-specific). See seek_type.
*/
public int64 start { get; private set; }
/**
* The end of the range as a number of bytes (classic) or as microseconds
* (DLNA-specific). See seek_type.
*/
public int64 stop { get; private set; }
/**
* Either 1 byte (classic) or as 1000 G_TIME_SPAN_MILLISECOND microseconds
* (DLNA-specific). See seek_type.
*/
public int64 step { get; private set; }
/**
* The length of the range as a number of bytes (classic) or as microseconds
* (DLNA-specific). See seek_type.
*/
public int64 length { get; private set; }
/**
* The length of the media file as a number of bytes (classic) or as microseconds
* (DLNA-specific). See seek_type.
*/
public int64 total_length { get; private set; }
public HTTPSeek (Soup.Message msg,
int64 start,
int64 stop,
int64 step,
int64 total_length) throws HTTPSeekError {
this.msg = msg;
this.start = start;
this.stop = stop;
this.length = length;
this.total_length = total_length;
if (start < 0 || start >= total_length) {
throw new HTTPSeekError.OUT_OF_RANGE (_("Out Of Range Start '%ld'"),
start);
}
if (stop < 0 || stop >= total_length) {
throw new HTTPSeekError.OUT_OF_RANGE (_("Out Of Range Stop '%ld'"),
stop);
}
if (length > 0) {
this.stop = stop.clamp (start + 1, length - 1);
}
this.length = stop + step - start;
}
public abstract void add_response_headers ();
}
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