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Copy pathAssemblyTable.NetFramework.cs
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134 lines (117 loc) · 4.83 KB
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
using System;
using System.Collections.Concurrent;
using System.IO;
using System.Reflection;
using System.Runtime.Serialization.Formatters.Binary;
using Microsoft.Win32;
namespace Microsoft.ClearScript.Util
{
internal static class AssemblyTable
{
public static string GetFullAssemblyName(string name)
{
return HostSettings.UseAssemblyTable ? AssemblyTableImpl.GetFullAssemblyNameImpl(name) : AssemblyHelpers.GetFullAssemblyName(name);
}
#region Nested type: AssemblyTableImpl
internal static class AssemblyTableImpl
{
private static ConcurrentDictionary<string, string> table;
static AssemblyTableImpl()
{
LoadAssemblyTable();
if (table != null)
{
AppDomain.CurrentDomain.AssemblyLoad += (sender, args) => table.TryAdd(args.LoadedAssembly.GetName().Name, args.LoadedAssembly.FullName);
AppDomain.CurrentDomain.GetAssemblies().ForEach(assembly => table.TryAdd(assembly.GetName().Name, assembly.FullName));
}
}
public static string GetFullAssemblyNameImpl(string name)
{
string fullName;
return ((table != null) && table.TryGetValue(name, out fullName)) ? fullName : name;
}
private static void LoadAssemblyTable()
{
// ReSharper disable EmptyGeneralCatchClause
string filePath = null;
try
{
var dirPath = Path.Combine(MiscHelpers.GetLocalDataRootPath(), GetRuntimeVersionDirectoryName());
Directory.CreateDirectory(dirPath);
filePath = Path.Combine(dirPath, "AssemblyTable.bin");
if (File.Exists(filePath))
{
try
{
using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var formatter = new BinaryFormatter();
table = (ConcurrentDictionary<string, string>)formatter.Deserialize(stream);
}
}
catch (Exception)
{
}
}
}
catch (Exception)
{
}
if (table == null)
{
BuildAssemblyTable();
if ((table != null) && (filePath != null))
{
try
{
using (var stream = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None))
{
var formatter = new BinaryFormatter();
formatter.Serialize(stream, table);
}
}
catch (Exception)
{
}
}
}
// ReSharper restore EmptyGeneralCatchClause
}
private static void BuildAssemblyTable()
{
// ReSharper disable EmptyGeneralCatchClause
try
{
var key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\.NETFramework");
if (key != null)
{
var dirPath = Path.Combine((string)key.GetValue("InstallRoot"), GetRuntimeVersionDirectoryName());
table = new ConcurrentDictionary<string, string>();
foreach (var filePath in Directory.EnumerateFiles(dirPath, "*.dll", SearchOption.AllDirectories))
{
try
{
var assemblyName = Assembly.ReflectionOnlyLoadFrom(filePath).GetName();
table.TryAdd(assemblyName.Name, assemblyName.FullName);
}
catch (Exception)
{
}
}
}
}
catch (Exception)
{
}
// ReSharper restore EmptyGeneralCatchClause
}
private static string GetRuntimeVersionDirectoryName()
{
return MiscHelpers.FormatInvariant("v{0}", Environment.Version.ToString(3));
}
}
#endregion
}
}