diff options
Diffstat (limited to 'Emby.Server.Implementations/Library/PathExtensions.cs')
| -rw-r--r-- | Emby.Server.Implementations/Library/PathExtensions.cs | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/Emby.Server.Implementations/Library/PathExtensions.cs b/Emby.Server.Implementations/Library/PathExtensions.cs index d5b855cdf..6f61dc713 100644 --- a/Emby.Server.Implementations/Library/PathExtensions.cs +++ b/Emby.Server.Implementations/Library/PathExtensions.cs @@ -16,7 +16,7 @@ namespace Emby.Server.Implementations.Library /// <param name="attribute">The attrib.</param> /// <returns>System.String.</returns> /// <exception cref="ArgumentException"><paramref name="str" /> or <paramref name="attribute" /> is empty.</exception> - public static string? GetAttributeValue(this string str, string attribute) + public static string? GetAttributeValue(this ReadOnlySpan<char> str, ReadOnlySpan<char> attribute) { if (str.Length == 0) { @@ -28,17 +28,31 @@ namespace Emby.Server.Implementations.Library throw new ArgumentException("String can't be empty.", nameof(attribute)); } - string srch = "[" + attribute + "="; - int start = str.IndexOf(srch, StringComparison.OrdinalIgnoreCase); - if (start != -1) + var attributeIndex = str.IndexOf(attribute, StringComparison.OrdinalIgnoreCase); + + // Must be at least 3 characters after the attribute =, ], any character. + var maxIndex = str.Length - attribute.Length - 3; + while (attributeIndex > -1 && attributeIndex < maxIndex) { - start += srch.Length; - int end = str.IndexOf(']', start); - return str.Substring(start, end - start); + var attributeEnd = attributeIndex + attribute.Length; + if (attributeIndex > 0 + && str[attributeIndex - 1] == '[' + && str[attributeEnd] == '=') + { + var closingIndex = str[attributeEnd..].IndexOf(']'); + // Must be at least 1 character before the closing bracket. + if (closingIndex > 1) + { + return str[(attributeEnd + 1)..(attributeEnd + closingIndex)].Trim().ToString(); + } + } + + str = str[attributeEnd..]; + attributeIndex = str.IndexOf(attribute, StringComparison.OrdinalIgnoreCase); } // for imdbid we also accept pattern matching - if (string.Equals(attribute, "imdbid", StringComparison.OrdinalIgnoreCase)) + if (attribute.Equals("imdbid", StringComparison.OrdinalIgnoreCase)) { var match = ProviderIdParsers.TryFindImdbId(str, out var imdbId); return match ? imdbId.ToString() : null; |