diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs index d9ffe64b3b..0957b8cf7a 100644 --- a/Emby.Server.Implementations/Library/LibraryManager.cs +++ b/Emby.Server.Implementations/Library/LibraryManager.cs @@ -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 SubstitutePathInternal(string path, string from, string to) - { - if (string.IsNullOrWhiteSpace(path)) + if (path.TryReplaceSubPath(from, to, out var newPath)) { - throw new ArgumentNullException(nameof(path)); + return newPath; } - if (string.IsNullOrWhiteSpace(from)) - { - throw new ArgumentNullException(nameof(from)); - } - - 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(newPath, changed); + return path; } private void SetExtraTypeFromFilename(Video item) diff --git a/Emby.Server.Implementations/Library/PathExtensions.cs b/Emby.Server.Implementations/Library/PathExtensions.cs index 06ff3e611b..d9e20e19ac 100644 --- a/Emby.Server.Implementations/Library/PathExtensions.cs +++ b/Emby.Server.Implementations/Library/PathExtensions.cs @@ -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; } + + /// + /// Replaces a sub path with another sub path and normalizes the final path. + /// + /// The original path. + /// The original sub path. + /// The new sub path. + /// The result of the sub path replacement + /// The path after replacing the sub path. + /// , or is empty. + 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; + } } } diff --git a/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs b/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs index 6d768af890..a6fe905668 100644 --- a/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs +++ b/tests/Jellyfin.Server.Implementations.Tests/Library/PathExtensionsTests.cs @@ -24,5 +24,31 @@ namespace Jellyfin.Server.Implementations.Tests.Library { Assert.Throws(() => 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); + } } }