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/*
* Copyright (C) 2013 Cable Television Laboratories, Inc.
*
* Author: Craig Pratt <craig@ecaspia.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 2.1 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
using GUPnP;
public class Rygel.DTCPCleartextResponse : Rygel.HTTPResponseElement {
public const string DTCP_CONTENT_RANGE_HEADER = "Content-Range.dtcp.com";
/**
* The start of the response range in bytes
*/
public int64 start_byte { get; private set; }
/**
* The end of the range in bytes (inclusive)
*/
public int64 end_byte { get; private set; }
/**
* The length of the range in bytes
*/
public int64 range_length { get; private set; }
/**
* The length of the resource in bytes. May be HTTPSeekRequest.UNSPECIFIED
*/
public int64 total_size { get; private set; }
/**
* The encrypted length of the response
*/
public int64 encrypted_length { get; public set;}
public DTCPCleartextResponse (int64 start_byte,
int64 end_byte,
int64 total_size,
int64 encrypted_length = UNSPECIFIED) {
this.start_byte = start_byte;
this.end_byte = end_byte;
this.range_length = end_byte - start_byte + 1; // +1, since range is inclusive
this.total_size = total_size;
this.encrypted_length = encrypted_length;
}
public DTCPCleartextResponse.from_request
(DTCPCleartextRequest request,
int64 encrypted_length = UNSPECIFIED) {
this.start_byte = request.start_byte;
this.end_byte = request.end_byte;
this.range_length = request.range_length;
this.total_size = request.total_size;
this.encrypted_length = encrypted_length;
}
public override void add_response_headers (Rygel.HTTPRequest request) {
// Content-Range.dtcp.com: bytes START_BYTE-END_BYTE/TOTAL_LENGTH (or "*")
if (this.start_byte != UNSPECIFIED) {
string response = "bytes " + this.start_byte.to_string ()
+ "-" + this.end_byte.to_string () + "/"
+ ( (this.total_size == UNSPECIFIED) ? "*"
: this.total_size.to_string () );
request.msg.get_response_headers ().append (DTCP_CONTENT_RANGE_HEADER,
response);
}
if (this.encrypted_length != UNSPECIFIED) {
request.msg.get_response_headers ().set_content_length
(this.encrypted_length);
}
}
public override string to_string () {
return ("DTCPCleartextResponse(bytes=%lld-%lld/%lld, enc_len=%lld)"
.printf (this.start_byte,
this.end_byte,
this.total_size,
this.encrypted_length));
}
}
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