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safer shortcut migration

This commit is contained in:
Luke Pulverenti 2013-10-01 16:20:48 -04:00
parent 2da4ef2a01
commit 7c9c0c999d
4 changed files with 70 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
MediaBrowser.Api/Library/LibraryHelpers.cs
View File

@ -12,8 +12,8 @@ namespace MediaBrowser.Api.Library
/// </summary>
public static class LibraryHelpers
{
private const string ShortcutFileExtension = ".lnk";
private const string ShortcutFileSearch = "*.lnk";
private const string ShortcutFileExtension = ".mblink";
private const string ShortcutFileSearch = "*" + ShortcutFileExtension;
/// <summary>
/// Adds the virtual folder.

56
MediaBrowser.Controller/IO/FileSystem.cs
View File

@ -1,4 +1,6 @@
using MediaBrowser.Model.Logging;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Specialized;
using System.IO;
@ -130,16 +132,21 @@ namespace MediaBrowser.Controller.IO
throw new ArgumentNullException("filename");
}
return new WindowsShortcut(filename).ResolvedPath;
if (string.Equals(Path.GetExtension(filename), ".mblink", StringComparison.OrdinalIgnoreCase))
{
return File.ReadAllText(filename);
}
//var link = new ShellLink();
//((IPersistFile)link).Load(filename, NativeMethods.STGM_READ);
//// TODO: if I can get hold of the hwnd call resolve first. This handles moved and renamed files.
//// ((IShellLinkW)link).Resolve(hwnd, 0)
//var sb = new StringBuilder(NativeMethods.MAX_PATH);
//WIN32_FIND_DATA data;
//((IShellLinkW)link).GetPath(sb, sb.Capacity, out data, 0);
//return sb.ToString();
//return new WindowsShortcut(filename).ResolvedPath;
var link = new ShellLink();
((IPersistFile)link).Load(filename, NativeMethods.STGM_READ);
// TODO: if I can get hold of the hwnd call resolve first. This handles moved and renamed files.
// ((IShellLinkW)link).Resolve(hwnd, 0)
var sb = new StringBuilder(NativeMethods.MAX_PATH);
WIN32_FIND_DATA data;
((IShellLinkW)link).GetPath(sb, sb.Capacity, out data, 0);
return sb.ToString();
}
/// <summary>
@ -160,13 +167,18 @@ namespace MediaBrowser.Controller.IO
throw new ArgumentNullException("target");
}
var link = new ShellLink();
File.WriteAllText(shortcutPath, target);
((IShellLinkW)link).SetPath(target);
//var link = new ShellLink();
((IPersistFile)link).Save(shortcutPath, true);
//((IShellLinkW)link).SetPath(target);
//((IPersistFile)link).Save(shortcutPath, true);
}
private static readonly Dictionary<string, string> ShortcutExtensionsDictionary = new[] { ".mblink", ".lnk" }
.ToDictionary(i => i, StringComparer.OrdinalIgnoreCase);
/// <summary>
/// Determines whether the specified filename is shortcut.
/// </summary>
@ -180,7 +192,9 @@ namespace MediaBrowser.Controller.IO
throw new ArgumentNullException("filename");
}
return string.Equals(Path.GetExtension(filename), ".lnk", StringComparison.OrdinalIgnoreCase);
var extension = Path.GetExtension(filename);
return !string.IsNullOrEmpty(extension) && ShortcutExtensionsDictionary.ContainsKey(extension);
}
/// <summary>
@ -258,7 +272,7 @@ namespace MediaBrowser.Controller.IO
public WindowsShortcut(string file)
{
ParseLink(File.ReadAllBytes(file));
ParseLink(File.ReadAllBytes(file), Encoding.UTF8);
}
private static bool isMagicPresent(byte[] link)
@ -274,7 +288,7 @@ namespace MediaBrowser.Controller.IO
* Gobbles up link data by parsing it and storing info in member fields
* @param link all the bytes from the .lnk file
*/
private void ParseLink(byte[] link)
private void ParseLink(byte[] link, Encoding encoding)
{
if (!isMagicPresent(link))
throw new IOException("Invalid shortcut; magic is missing", 0);
@ -317,11 +331,11 @@ namespace MediaBrowser.Controller.IO
const int networkVolumeTable_offset_offset = 0x14;
const int finalname_offset_offset = 0x18;
int finalname_offset = link[file_start + finalname_offset_offset] + file_start;
String finalname = getNullDelimitedString(link, finalname_offset);
String finalname = getNullDelimitedString(link, finalname_offset, encoding);
if (IsLocal)
{
int basename_offset = link[file_start + basename_offset_offset] + file_start;
String basename = getNullDelimitedString(link, basename_offset);
String basename = getNullDelimitedString(link, basename_offset, encoding);
ResolvedPath = basename + finalname;
}
else
@ -330,12 +344,12 @@ namespace MediaBrowser.Controller.IO
int shareName_offset_offset = 0x08;
int shareName_offset = link[networkVolumeTable_offset + shareName_offset_offset]
+ networkVolumeTable_offset;
String shareName = getNullDelimitedString(link, shareName_offset);
String shareName = getNullDelimitedString(link, shareName_offset, encoding);
ResolvedPath = shareName + "\\" + finalname;
}
}
private static string getNullDelimitedString(byte[] bytes, int off)
private static string getNullDelimitedString(byte[] bytes, int off, Encoding encoding)
{
int len = 0;
@ -349,7 +363,7 @@ namespace MediaBrowser.Controller.IO
len++;
}
return Encoding.UTF8.GetString(bytes, off, len);
return encoding.GetString(bytes, off, len);
}
/*

2
MediaBrowser.Server.Implementations/Library/LibraryManager.cs
View File

@ -1084,7 +1084,7 @@ namespace MediaBrowser.Server.Implementations.Library
{
Name = Path.GetFileName(dir),
Locations = Directory.EnumerateFiles(dir, "*.lnk", SearchOption.TopDirectoryOnly)
Locations = Directory.EnumerateFiles(dir, "*.mblink", SearchOption.TopDirectoryOnly)
.Select(FileSystem.ResolveShortcut)
.OrderBy(i => i)
.ToList(),

32
MediaBrowser.ServerApplication/MainStartup.cs
View File

@ -2,6 +2,7 @@
using MediaBrowser.Common.Constants;
using MediaBrowser.Common.Implementations.Logging;
using MediaBrowser.Common.Implementations.Updates;
using MediaBrowser.Controller.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Server.Implementations;
using MediaBrowser.ServerApplication.Native;
@ -187,6 +188,8 @@ namespace MediaBrowser.ServerApplication
SystemEvents.SessionEnding += SystemEvents_SessionEnding;
SystemEvents.SessionSwitch += SystemEvents_SessionSwitch;
MigrateShortcuts(appPaths.RootFolderPath);
_appHost = new ApplicationHost(appPaths, logManager);
_app = new App(_appHost, _appHost.LogManager.GetLogger("App"), runService);
@ -523,5 +526,34 @@ namespace MediaBrowser.ServerApplication
/// </summary>
SEM_NOOPENFILEERRORBOX = 0x8000
}
private static void MigrateShortcuts(string directory)
{
Directory.CreateDirectory(directory);
foreach (var file in Directory.EnumerateFiles(directory, "*.lnk", SearchOption.AllDirectories).ToList())
{
MigrateShortcut(file);
}
}
private static void MigrateShortcut(string file)
{
var newFile = Path.ChangeExtension(file, ".mblink");
try
{
var resolvedPath = FileSystem.ResolveShortcut(file);
if (!string.IsNullOrEmpty(resolvedPath))
{
FileSystem.CreateShortcut(newFile, resolvedPath);
}
}
finally
{
File.Delete(file);
}
}
}
}