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Merge pull request #5381 from cvium/fix-network-substitution

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(cherry picked from commit 497ea57fd2)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>
pull/5640/head
Bond-009 3 years ago committed by Joshua M. Boniface
parent b01290013e
commit 42d0c1ac5f
3 changed files with 92 additions and 58 deletions
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68
Emby.Server.Implementations/Library/LibraryManager.cs
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@ -2776,6 +2776,7 @@ namespace Emby.Server.Implementations.Library
public string GetPathAfterNetworkSubstitution(string path, BaseItem ownerItem)
{
string newPath;
if (ownerItem != null)
{
var libraryOptions = GetLibraryOptions(ownerItem);
@ -2783,15 +2784,9 @@ namespace Emby.Server.Implementations.Library
{
foreach (var pathInfo in libraryOptions.PathInfos)
{
if (string.IsNullOrWhiteSpace(pathInfo.Path) || string.IsNullOrWhiteSpace(pathInfo.NetworkPath))
if (path.TryReplaceSubPath(pathInfo.Path, pathInfo.NetworkPath, out newPath))
{
continue;
}
var substitutionResult = SubstitutePathInternal(path, pathInfo.Path, pathInfo.NetworkPath);
if (substitutionResult.Item2)
{
return substitutionResult.Item1;
return newPath;
}
}
}
@ -2800,24 +2795,16 @@ namespace Emby.Server.Implementations.Library
var metadataPath = _configurationManager.Configuration.MetadataPath;
var metadataNetworkPath = _configurationManager.Configuration.MetadataNetworkPath;
if (!string.IsNullOrWhiteSpace(metadataPath) && !string.IsNullOrWhiteSpace(metadataNetworkPath))
if (path.TryReplaceSubPath(metadataPath, metadataNetworkPath, out newPath))
{
var metadataSubstitutionResult = SubstitutePathInternal(path, metadataPath, metadataNetworkPath);
if (metadataSubstitutionResult.Item2)
{
return metadataSubstitutionResult.Item1;
}
return newPath;
}
foreach (var map in _configurationManager.Configuration.PathSubstitutions)
{
if (!string.IsNullOrWhiteSpace(map.From))
if (path.TryReplaceSubPath(map.From, map.To, out newPath))
{
var substitutionResult = SubstitutePathInternal(path, map.From, map.To);
if (substitutionResult.Item2)
{
return substitutionResult.Item1;
}
return newPath;
}
}
@ -2826,47 +2813,12 @@ namespace Emby.Server.Implementations.Library
public string SubstitutePath(string path, string from, string to)
{
return SubstitutePathInternal(path, from, to).Item1;
}
private Tuple<string, bool> SubstitutePathInternal(string path, string from, string to)
{
if (string.IsNullOrWhiteSpace(path))
{
throw new ArgumentNullException(nameof(path));
}
if (string.IsNullOrWhiteSpace(from))
if (path.TryReplaceSubPath(from, to, out var newPath))
{
throw new ArgumentNullException(nameof(from));
return newPath;
}
if (string.IsNullOrWhiteSpace(to))
{
throw new ArgumentNullException(nameof(to));
}
from = from.Trim();
to = to.Trim();
var newPath = path.Replace(from, to, StringComparison.OrdinalIgnoreCase);
var changed = false;
if (!string.Equals(newPath, path, StringComparison.Ordinal))
{
if (to.IndexOf('/', StringComparison.Ordinal) != -1)
{
newPath = newPath.Replace('\\', '/');
}
else
{
newPath = newPath.Replace('/', '\\');
}
changed = true;
}
return new Tuple<string, bool>(newPath, changed);
return path;
}
private void SetExtraTypeFromFilename(Video item)

56
Emby.Server.Implementations/Library/PathExtensions.cs
Unescape View File

@ -1,6 +1,8 @@
#nullable enable
using System;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Text.RegularExpressions;
namespace Emby.Server.Implementations.Library
@ -47,5 +49,59 @@ namespace Emby.Server.Implementations.Library
return null;
}
/// <summary>
/// Replaces a sub path with another sub path and normalizes the final path.
/// </summary>
/// <param name="path">The original path.</param>
/// <param name="subPath">The original sub path.</param>
/// <param name="newSubPath">The new sub path.</param>
/// <param name="newPath">The result of the sub path replacement</param>
/// <returns>The path after replacing the sub path.</returns>
/// <exception cref="ArgumentNullException"><paramref name="path" />, <paramref name="newSubPath" /> or <paramref name="newSubPath" /> is empty.</exception>
public static bool TryReplaceSubPath(this string path, string subPath, string newSubPath, [NotNullWhen(true)] out string? newPath)
{
newPath = null;
if (path.Length == 0 || subPath.Length == 0 || newSubPath.Length == 0 || subPath.Length > path.Length)
{
return false;
}
char oldDirectorySeparatorChar;
char newDirectorySeparatorChar;
// True normalization is still not possible https://github.com/dotnet/runtime/issues/2162
// The reasoning behind this is that a forward slash likely means it's a Linux path and
// so the whole path should be normalized to use / and vice versa for Windows (although Windows doesn't care much).
if (newSubPath.Contains('/', StringComparison.Ordinal))
{
oldDirectorySeparatorChar = '\\';
newDirectorySeparatorChar = '/';
}
else
{
oldDirectorySeparatorChar = '/';
newDirectorySeparatorChar = '\\';
}
path = path.Replace(oldDirectorySeparatorChar, newDirectorySeparatorChar);
subPath = subPath.Replace(oldDirectorySeparatorChar, newDirectorySeparatorChar);
// We have to ensure that the sub path ends with a directory separator otherwise we'll get weird results
// when the sub path matches a similar but in-complete subpath
var oldSubPathEndsWithSeparator = subPath[^1] == newDirectorySeparatorChar;
if (!path.StartsWith(subPath, StringComparison.OrdinalIgnoreCase)
|| (!oldSubPathEndsWithSeparator && path[subPath.Length] != newDirectorySeparatorChar))
{
return false;
}
var newSubPathTrimmed = newSubPath.AsSpan().TrimEnd(newDirectorySeparatorChar);
// Ensure that the path with the old subpath removed starts with a leading dir separator
int idx = oldSubPathEndsWithSeparator ? subPath.Length - 1 : subPath.Length;
newPath = string.Concat(newSubPathTrimmed, path.AsSpan(idx));
return true;
}
}
}

26
tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs
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@ -24,5 +24,31 @@ namespace Jellyfin.Server.Implementations.Tests.Library
{
Assert.Throws<ArgumentException>(() => PathExtensions.GetAttributeValue(input, attribute));
}
[Theory]
[InlineData("C:/Users/jeff/myfile.mkv", "C:/Users/jeff", "/home/jeff", "/home/jeff/myfile.mkv")]
[InlineData("C:/Users/jeff/myfile.mkv", "C:/Users/jeff/", "/home/jeff", "/home/jeff/myfile.mkv")]
[InlineData("/home/jeff/music/jeff's band/consistently inconsistent.mp3", "/home/jeff/music/jeff's band", "/home/not jeff", "/home/not jeff/consistently inconsistent.mp3")]
[InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff", "/home/jeff", "/home/jeff/myfile.mkv")]
[InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff", "/home/jeff/", "/home/jeff/myfile.mkv")]
[InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff/", "/home/jeff/", "/home/jeff/myfile.mkv")]
[InlineData("C:\\Users\\jeff\\myfile.mkv", "C:\\Users/jeff/", "/", "/myfile.mkv")]
public void TryReplaceSubPath_ValidArgs_Correct(string path, string subPath, string newSubPath, string? expectedResult)
{
Assert.True(PathExtensions.TryReplaceSubPath(path, subPath, newSubPath, out var result));
Assert.Equal(expectedResult, result);
}
[Theory]
[InlineData("", "", "")]
[InlineData("/my/path", "", "")]
[InlineData("", "/another/path", "")]
[InlineData("", "", "/new/subpath")]
[InlineData("/home/jeff/music/jeff's band/consistently inconsistent.mp3", "/home/jeff/music/not jeff's band", "/home/not jeff")]
public void TryReplaceSubPath_InvalidInput_ReturnsFalseAndNull(string path, string subPath, string newSubPath)
{
Assert.False(PathExtensions.TryReplaceSubPath(path, subPath, newSubPath, out var result));
Assert.Null(result);
}
}
}

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