Filters/FilterDesktop.cs

   1 //
   2 // FilterDesktop.cs
   3 //
   4 // Copyright (C) 2005 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a
   9 // copy of this software and associated documentation files (the "Software"),
  10 // to deal in the Software without restriction, including without limitation
  11 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12 // and/or sell copies of the Software, and to permit persons to whom the
  13 // Software is furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24 // DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections;
  29 using System.IO;
  30 using System.Text;
  31 using System.Diagnostics;
  32
  33 using Beagle.Daemon;
  34 using Beagle.Util;
  35
  36 namespace Beagle.Filters {
  37
  38         public class FilterDesktop : Filter {
  39
  40                 protected StreamReader reader;
  41
  42                 public FilterDesktop ()
  43                 {
  44                         // 1: Added Categories field
  45                         // 2: Added Type field
  46                         SetVersion (2);
  47
  48                         AddSupportedFlavor (FilterFlavor.NewFromMimeType ("application/x-desktop"));
  49                 }
  50
  51                 override protected void DoOpen (FileInfo file)
  52                 {
  53                         try {
  54                                 reader = new StreamReader (file.FullName);
  55                         } catch (Exception e) {
  56                                 Logger.Log.Error ("Could not open '{0}': {1}", file.FullName, e.Message);
  57                                 Error ();
  58                                 return;
  59                         }
  60                 }
  61
  62                 override protected void DoPullProperties ()
  63                 {
  64                         if (reader == null) {
  65                                 Error ();
  66                                 return;
  67                         }
  68
  69                         if (reader.ReadLine () != "[Desktop Entry]") {
  70                                 Logger.Log.Error ("Could not filter file: No desktop entry");
  71                                 reader.Close ();
  72                                 Error ();
  73                                 return;
  74                         }
  75
  76                         // desktop files must have a name
  77                         bool have_name = false;
  78
  79                         String line;
  80                         while ((line = reader.ReadLine ()) != null)  {
  81                                 string [] sline = line.Split ('=');
  82                                 if (sline.Length != 2)
  83                                         continue;
  84
  85                                 if (sline [0].Equals ("Icon") || sline [0].Equals ("Exec")) {
  86                                         AddProperty (Property.NewUnsearched ("fixme:" + sline [0], sline [1]));
  87                                 } else if (sline [0].StartsWith ("Name")) {
  88                                         if (sline [0] == "Name")
  89                                                 have_name = true;
  90                                         AddProperty (Property.New ("fixme:" + sline [0], sline [1]));
  91                                 } else if (sline [0].StartsWith ("Comment")) {
  92                                         AddProperty (Property.New ("fixme:" + sline [0], sline [1]));
  93                                 } else if (sline [0].StartsWith ("Categories")) {
  94                                         string [] categories =  sline [1].Split (';');
  95                                         foreach (string c in categories)
  96                                                 if (c != null && c != "")
  97                                                         AddProperty (Property.New ("fixme:" + sline [0], c));
  98                                 } else if (sline [0].StartsWith ("Type")) {
  99                                         AddProperty (Property.NewKeyword ("fixme:" + sline [0], sline [1]));
 100                                 }
 101                         }
 102
 103                         reader.Close ();
 104
 105                         if (have_name) {
 106                                 Finished ();
 107                         } else {
 108                                 Logger.Log.Error ("Could not filter: No name in desktop entry");
 109                                 Error ();
 110                         }
 111                 }
 112         }
 113 }