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;\r
   8 using System.Collections.Generic;\r
   9 using System.IO;\r
  10 using System.Xml;\r
  11 using System.Text.RegularExpressions;\r
  12 \r
  13 namespace Handbrake.Functions\r
  14 {\r
  15     public class AppcastReader\r
  16     {\r
  17         XmlDocument rssDoc;\r
  18         XmlNode nodeRss;\r
  19         XmlNode nodeChannel;\r
  20         XmlNode nodeItem;\r
  21         private string hb_description;\r
  22         private string hb_version;\r
  23         private string hb_build;\r
  24         private string hb_file;\r
  25 \r
  26         /// <summary>\r
  27         /// Get the build information from the required appcasts.\r
  28         /// This must be run before calling any of the public return functions.\r
  29         /// </summary>\r
  30         public void getInfo()\r
  31         {\r
  32             Match ver;\r
  33             int stable_build, unstable_build = 0;\r
  34             string input, unstable_description = "", stable_description, unstable_version = "", stable_version;\r
  35             string stable_file, unstable_file = "";\r
  36 \r
  37             // Check the stable appcast and get the stable build number\r
  38             readRss(new XmlTextReader(Properties.Settings.Default.appcast));\r
  39             input = nodeItem.InnerXml;\r
  40             ver = Regex.Match(input, @"sparkle:version=""([0-9]*)\""");\r
  41             stable_build = int.Parse(ver.ToString().Replace("sparkle:version=", "").Replace("\"", ""));\r
  42             ver = Regex.Match(input, @"sparkle:shortVersionString=""([0-9].[0-9].[0-9]*)\""");\r
  43             stable_version = ver.ToString().Replace("sparkle:shortVersionString=", "").Replace("\"", "");\r
  44             stable_description = nodeItem["description"].InnerText;\r
  45             stable_file = nodeItem["windows"].InnerText;\r
  46 \r
  47             // If this is a snapshot release, or the user wants to check for snapshot releases\r
  48             if (Properties.Settings.Default.checkSnapshot == "Checked" || Properties.Settings.Default.hb_build.ToString().EndsWith("1"))\r
  49             {\r
  50                 // Get the stable build\r
  51                 readRss(new XmlTextReader(Properties.Settings.Default.appcast_unstable));\r
  52                 input = nodeItem.InnerXml;\r
  53                 ver = Regex.Match(input, @"sparkle:version=""([0-9]*)\""");\r
  54                 unstable_build = int.Parse(ver.ToString().Replace("sparkle:version=", "").Replace("\"", ""));\r
  55                 ver = Regex.Match(input, @"sparkle:shortVersionString=""([0-9a-zA-Z.]*)\""");\r
  56                 unstable_version = ver.ToString().Replace("sparkle:shortVersionString=", "").Replace("\"", "");\r
  57                 unstable_description = nodeItem["description"].InnerText;\r
  58                 unstable_file = nodeItem["windows"].InnerText;\r
  59             }\r
  60 \r
  61             // Set the global version information\r
  62             if (stable_build >= unstable_build)\r
  63             {\r
  64                 hb_description = stable_description;\r
  65                 hb_version = stable_version;\r
  66                 hb_build = stable_build.ToString();\r
  67                 hb_file = stable_file;\r
  68             }\r
  69             else\r
  70             {\r
  71                 hb_description = unstable_description;\r
  72                 hb_version = unstable_version;\r
  73                 hb_build = unstable_build.ToString();\r
  74                 hb_file = unstable_file;\r
  75             }\r
  76         }\r
  77 \r
  78         /// <summary>\r
  79         /// Read the RSS file.\r
  80         /// </summary>\r
  81         /// <param name="rssReader"></param>\r
  82         private void readRss(XmlTextReader rssReader)\r
  83         {\r
  84             rssDoc = new XmlDocument();\r
  85             rssDoc.Load(rssReader);\r
  86 \r
  87             for (int i = 0; i < rssDoc.ChildNodes.Count; i++)\r
  88             {\r
  89                 if (rssDoc.ChildNodes[i].Name == "rss")\r
  90                     nodeRss = rssDoc.ChildNodes[i];\r
  91             }\r
  92 \r
  93             for (int i = 0; i < nodeRss.ChildNodes.Count; i++)\r
  94             {\r
  95                 if (nodeRss.ChildNodes[i].Name == "channel")\r
  96                     nodeChannel = nodeRss.ChildNodes[i];\r
  97             }\r
  98 \r
  99             for (int i = 0; i < nodeChannel.ChildNodes.Count; i++)\r
 100             {\r
 101                 if (nodeChannel.ChildNodes[i].Name == "item")\r
 102                     nodeItem = nodeChannel.ChildNodes[i];\r
 103             }\r
 104         }\r
 105 \r
 106         /// <summary>\r
 107         /// Get Information about an update to HandBrake\r
 108         /// </summary>\r
 109         /// <returns></returns>\r
 110         public string versionInfo()\r
 111         {\r
 112             return hb_description;\r
 113         }\r
 114 \r
 115         /// <summary>\r
 116         /// Get HandBrake's version from the appcast.xml file.\r
 117         /// </summary>\r
 118         /// <returns></returns>\r
 119         public string version()\r
 120         {\r
 121             return hb_version;\r
 122         }\r
 123 \r
 124         /// <summary>\r
 125         /// Get HandBrake's Build from the appcast.xml file.\r
 126         /// </summary>\r
 127         /// <returns></returns>\r
 128         public string build()\r
 129         {\r
 130             return hb_build;\r
 131         }\r
 132 \r
 133         /// <summary>\r
 134         /// Get's the URL for update file.\r
 135         /// </summary>\r
 136         /// <returns></returns>\r
 137         public string downloadFile()\r
 138         {\r
 139             return hb_file;\r
 140         }\r
 141     }\r
 142 }