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ArchiveFormat refactored.
(Extract): method is no longer virtual. (CreateFile): added check for malicious and malformed filenames. (ParametersRequestEventArgs): removed InputWidget property.
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@ -140,7 +140,7 @@ namespace GameRes
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/// <summary>
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/// Extract file referenced by <paramref name="entry"/> into current directory.
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/// </summary>
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public virtual void Extract (ArcFile file, Entry entry)
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public void Extract (ArcFile file, Entry entry)
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{
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using (var reader = OpenEntry (file, entry))
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{
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@ -161,20 +161,35 @@ namespace GameRes
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/// <summary>
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/// Create file corresponding to <paramref name="entry"/> in current directory and open it
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/// for writing.
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/// for writing. Overwrites existing file, if any.
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/// </summary>
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public virtual Stream CreateFile (Entry entry)
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{
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string dir = Path.GetDirectoryName (entry.Name);
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if (!string.IsNullOrEmpty (dir))
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string filename = entry.Name;
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string dir = Path.GetDirectoryName (filename);
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if (!string.IsNullOrEmpty (dir)) // check for malformed filenames
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{
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Directory.CreateDirectory (dir);
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string root = Path.GetPathRoot (dir);
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if (!string.IsNullOrEmpty (root))
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{
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dir = dir.Substring (root.Length); // strip root
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}
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string cwd = Directory.GetCurrentDirectory() + Path.DirectorySeparatorChar;
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dir = Path.GetFullPath (dir);
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filename = Path.GetFileName (filename);
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// check whether filename would reside within current directory
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if (dir.StartsWith (cwd, StringComparison.OrdinalIgnoreCase))
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{
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// path looks legit, create it
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Directory.CreateDirectory (dir);
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filename = Path.Combine (dir, filename);
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}
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}
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return File.Create (entry.Name);
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return File.Create (filename);
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}
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/// <summary>
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/// Create resource wihin stream <paramref name="file"/> containing entries from the
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/// Create resource within stream <paramref name="file"/> containing entries from the
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/// supplied <paramref name="list"/> and applying necessary <paramref name="options"/>.
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/// </summary>
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public virtual void Create (Stream file, IEnumerable<Entry> list, ResourceOptions options = null,
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@ -190,7 +205,7 @@ namespace GameRes
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public virtual ResourceOptions GetOptions (object widget)
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{
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return null;
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return GetDefaultOptions();
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}
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public virtual object GetCreationWidget ()
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@ -221,11 +236,6 @@ namespace GameRes
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/// </summary>
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public string Notice { get; set; }
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/// <summary>
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/// UIElement responsible for displaying request.
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/// </summary>
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public object InputWidget { get; set; }
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/// <summary>
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/// Return value from ShowDialog()
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/// </summary>
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