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/* RssReader.cs $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr>.
It may be used under the terms of the GNU General Public License. */
using System;
using System.Xml;
using System.Text.RegularExpressions;
using System.IO;
namespace Handbrake.Functions
{
public class AppcastReader
{
/// <summary>
/// Get the build information from the required appcasts. Run before accessing the public vars.
/// </summary>
public void GetInfo(string input)
{
try
{
// Get the correct Appcast and set input.
XmlNode nodeItem = readRss(new XmlTextReader(new StringReader(input)));
string result = nodeItem.InnerXml;
// Regular Expressions
Match ver = Regex.Match(result, @"sparkle:version=""([0-9]*)\""");
Match verShort = Regex.Match(result, @"sparkle:shortVersionString=""(([svn]*)([0-9.\s]*))\""");
Build = ver.ToString().Replace("sparkle:version=", "").Replace("\"", "");
Version = verShort.ToString().Replace("sparkle:shortVersionString=", "").Replace("\"", "");
DownloadFile = nodeItem["windows"].InnerText;
DescriptionUrl = new Uri(nodeItem["sparkle:releaseNotesLink"].InnerText);
}
catch( Exception)
{
return;
}
}
/// <summary>
/// Read the RSS file.
/// </summary>
/// <param name="rssReader"></param>
private static XmlNode readRss(XmlReader rssReader)
{
XmlNode nodeItem = null;
XmlNode nodeChannel = null;
XmlNode nodeRss = null;
XmlDocument rssDoc = new XmlDocument();
rssDoc.Load(rssReader);
foreach (XmlNode t in rssDoc.ChildNodes)
{
if (t.Name == "rss")
nodeRss = t;
}
if (nodeRss != null)
foreach (XmlNode t in nodeRss.ChildNodes)
{
if (t.Name == "channel")
nodeChannel = t;
}
if (nodeChannel != null)
foreach (XmlNode t in nodeChannel.ChildNodes)
{
if (t.Name == "item")
nodeItem = t;
}
return nodeItem;
}
/// <summary>
/// Get Information about an update to HandBrake
/// </summary>
public Uri DescriptionUrl { get; set; }
/// <summary>
/// Get HandBrake's version from the appcast.xml file.
/// </summary>
public string Version { get; set; }
/// <summary>
/// Get HandBrake's Build from the appcast.xml file.
/// </summary>
public string Build { get; set; }
/// <summary>
/// Get's the URL for update file.
/// </summary>
public string DownloadFile { get; set; }
}
}
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