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8ca25c6370
* Update GCF output string for encrypted GCFs * Use Array.Exists since some early GCFs have only some files encrypted
37 lines
1.6 KiB
C#
37 lines
1.6 KiB
C#
using System;
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using System.IO;
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namespace BinaryObjectScanner.FileType
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{
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/// <summary>
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/// Game Cache File (GCF)
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/// </summary>
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public class GCF : DetectableBase<SabreTools.Wrappers.GCF>
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{
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/// <inheritdoc/>
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public GCF(SabreTools.Wrappers.GCF wrapper) : base(wrapper) { }
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/// <inheritdoc/>
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public override string? Detect(Stream stream, string file, bool includeDebug)
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{
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// Filename is worth reporting, since it's descriptive and has to match the Steam2 CDN in order to work.
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string fileName = Path.GetFileName(file);
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uint depotId = _wrapper.Model.Header.CacheID;
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uint depotVersion = _wrapper.Model.Header.LastVersionPlayed;
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// While there is a depot-level encrypted flag on the GCF, it's unfortunately completely unreliable.
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// Technically speaking, there are some known GCFs that only have some files encrypted. HL2 discs from
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// 2004 have several GCFs like this, one being base_source_engine.gcf (depot 200). Thus, it's necessary
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// to iterate all file info to check if any files are encrypted
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bool encrypted = false;
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if (_wrapper.Files != null && _wrapper.Files.Length > 0)
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encrypted = Array.Exists(_wrapper.Files, fileInfo => fileInfo.Encrypted);
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// Only note encryption status if the GCF is encrypted
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string encryptedString = encrypted ? ", encrypted" : "";
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string returnString = $"{fileName} - {depotId} (v{depotVersion}{encryptedString})";
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return returnString;
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}
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}
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}
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