58 lines
2.1 KiB
C#
58 lines
2.1 KiB
C#
using System.IO;
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using Umbraco.Cms.Core.Configuration.Models;
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using Umbraco.Cms.Core.Exceptions;
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using Umbraco.Cms.Core.Hosting;
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namespace Umbraco.Extensions
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{
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public static class ModelsBuilderConfigExtensions
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{
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private static string? _modelsDirectoryAbsolute = null;
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public static string ModelsDirectoryAbsolute(this ModelsBuilderSettings modelsBuilderConfig, IHostingEnvironment hostingEnvironment)
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{
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if (_modelsDirectoryAbsolute is null)
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{
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var modelsDirectory = modelsBuilderConfig.ModelsDirectory;
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var root = hostingEnvironment.MapPathContentRoot("~/");
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_modelsDirectoryAbsolute = GetModelsDirectory(root, modelsDirectory,
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modelsBuilderConfig.AcceptUnsafeModelsDirectory);
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}
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return _modelsDirectoryAbsolute;
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}
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// internal for tests
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internal static string GetModelsDirectory(string root, string config, bool acceptUnsafe)
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{
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// making sure it is safe, ie under the website root,
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// unless AcceptUnsafeModelsDirectory and then everything is OK.
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if (!Path.IsPathRooted(root))
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throw new ConfigurationException($"Root is not rooted \"{root}\".");
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if (config.StartsWith("~/"))
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{
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var dir = Path.Combine(root, config.TrimStart("~/"));
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// sanitize - GetFullPath will take care of any relative
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// segments in path, eg '../../foo.tmp' - it may throw a SecurityException
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// if the combined path reaches illegal parts of the filesystem
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dir = Path.GetFullPath(dir);
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root = Path.GetFullPath(root);
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if (!dir.StartsWith(root) && !acceptUnsafe)
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throw new ConfigurationException($"Invalid models directory \"{config}\".");
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return dir;
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}
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if (acceptUnsafe)
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return Path.GetFullPath(config);
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throw new ConfigurationException($"Invalid models directory \"{config}\".");
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}
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}
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}
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