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PathExtensions: Fix index out of bounds in TryReplaceSubPath

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Fixes #5977
This commit is contained in:
Bond_009
2021-05-05 16:43:20 +02:00
parent b6df851363
commit 47e7c1356c
2 changed files with 9 additions and 2 deletions
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10
Emby.Server.Implementations/Library/PathExtensions.cs
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@@ -96,8 +96,14 @@ namespace Emby.Server.Implementations.Library
// 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))
if (!path.StartsWith(subPath, StringComparison.OrdinalIgnoreCase))
{
return false;
}
if (path.Length > subPath.Length
&& !oldSubPathEndsWithSeparator
&& path[subPath.Length] != newDirectorySeparatorChar)
{
return false;
}