win/C#/Functions/AppcastReader.cs

   1 /*  RssReader.cs $\r
   2         \r
   3            This file is part of the HandBrake source code.\r
   4            Homepage: <http://handbrake.fr>.\r
   5            It may be used under the terms of the GNU General Public License. */\r
   6 \r
   7 using System.Xml;\r
   8 using System.Text.RegularExpressions;\r
   9 \r
  10 namespace Handbrake.Functions\r
  11 {\r
  12     public class AppcastReader\r
  13     {\r
  14         XmlDocument rssDoc;\r
  15         XmlNode nodeRss;\r
  16         XmlNode nodeChannel;\r
  17         XmlNode nodeItem;\r
  18         private string hb_description;\r
  19         private string hb_version;\r
  20         private string hb_build;\r
  21         private string hb_file;\r
  22 \r
  23         /// <summary>\r
  24         /// Get the build information from the required appcasts.\r
  25         /// This must be run before calling any of the public return functions.\r
  26         /// </summary>\r
  27         public void getInfo()\r
  28         {\r
  29             int unstable_build = 0;\r
  30             string unstable_description = "", unstable_version = "";\r
  31             string unstable_file = "";\r
  32 \r
  33             // Check the stable appcast and get the stable build number\r
  34             readRss(new XmlTextReader(Properties.Settings.Default.appcast));\r
  35             string input = nodeItem.InnerXml;\r
  36             Match ver = Regex.Match(input, @"sparkle:version=""([0-9]*)\""");\r
  37             int stable_build = int.Parse(ver.ToString().Replace("sparkle:version=", "").Replace("\"", ""));\r
  38             ver = Regex.Match(input, @"sparkle:shortVersionString=""([0-9].[0-9].[0-9]*)\""");\r
  39             string stable_version = ver.ToString().Replace("sparkle:shortVersionString=", "").Replace("\"", "");\r
  40             string stable_description = nodeItem["description"].InnerText;\r
  41             string stable_file = nodeItem["windows"].InnerText;\r
  42 \r
  43             // If this is a snapshot release, or the user wants to check for snapshot releases\r
  44             if (Properties.Settings.Default.checkSnapshot == "Checked" || Properties.Settings.Default.hb_build.ToString().EndsWith("1"))\r
  45             {\r
  46                 // Get the stable build\r
  47                 readRss(new XmlTextReader(Properties.Settings.Default.appcast_unstable));\r
  48                 input = nodeItem.InnerXml;\r
  49                 ver = Regex.Match(input, @"sparkle:version=""([0-9]*)\""");\r
  50                 unstable_build = int.Parse(ver.ToString().Replace("sparkle:version=", "").Replace("\"", ""));\r
  51                 ver = Regex.Match(input, @"sparkle:shortVersionString=""([0-9a-zA-Z.]*)\""");\r
  52                 unstable_version = ver.ToString().Replace("sparkle:shortVersionString=", "").Replace("\"", "");\r
  53                 unstable_description = nodeItem["description"].InnerText;\r
  54                 unstable_file = nodeItem["windows"].InnerText;\r
  55             }\r
  56 \r
  57             // Set the global version information\r
  58             if (stable_build >= unstable_build)\r
  59             {\r
  60                 hb_description = stable_description;\r
  61                 hb_version = stable_version;\r
  62                 hb_build = stable_build.ToString();\r
  63                 hb_file = stable_file;\r
  64             }\r
  65             else\r
  66             {\r
  67                 hb_description = unstable_description;\r
  68                 hb_version = unstable_version;\r
  69                 hb_build = unstable_build.ToString();\r
  70                 hb_file = unstable_file;\r
  71             }\r
  72         }\r
  73 \r
  74         /// <summary>\r
  75         /// Read the RSS file.\r
  76         /// </summary>\r
  77         /// <param name="rssReader"></param>\r
  78         private void readRss(XmlReader rssReader)\r
  79         {\r
  80             rssDoc = new XmlDocument();\r
  81             rssDoc.Load(rssReader);\r
  82 \r
  83             for (int i = 0; i < rssDoc.ChildNodes.Count; i++)\r
  84             {\r
  85                 if (rssDoc.ChildNodes[i].Name == "rss")\r
  86                     nodeRss = rssDoc.ChildNodes[i];\r
  87             }\r
  88 \r
  89             for (int i = 0; i < nodeRss.ChildNodes.Count; i++)\r
  90             {\r
  91                 if (nodeRss.ChildNodes[i].Name == "channel")\r
  92                     nodeChannel = nodeRss.ChildNodes[i];\r
  93             }\r
  94 \r
  95             for (int i = 0; i < nodeChannel.ChildNodes.Count; i++)\r
  96             {\r
  97                 if (nodeChannel.ChildNodes[i].Name == "item")\r
  98                     nodeItem = nodeChannel.ChildNodes[i];\r
  99             }\r
 100         }\r
 101 \r
 102         /// <summary>\r
 103         /// Get Information about an update to HandBrake\r
 104         /// </summary>\r
 105         /// <returns></returns>\r
 106         public string versionInfo()\r
 107         {\r
 108             return hb_description;\r
 109         }\r
 110 \r
 111         /// <summary>\r
 112         /// Get HandBrake's version from the appcast.xml file.\r
 113         /// </summary>\r
 114         /// <returns></returns>\r
 115         public string version()\r
 116         {\r
 117             return hb_version;\r
 118         }\r
 119 \r
 120         /// <summary>\r
 121         /// Get HandBrake's Build from the appcast.xml file.\r
 122         /// </summary>\r
 123         /// <returns></returns>\r
 124         public string build()\r
 125         {\r
 126             return hb_build;\r
 127         }\r
 128 \r
 129         /// <summary>\r
 130         /// Get's the URL for update file.\r
 131         /// </summary>\r
 132         /// <returns></returns>\r
 133         public string downloadFile()\r
 134         {\r
 135             return hb_file;\r
 136         }\r
 137     }\r
 138 }