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Library loader now supports nested folders in Libs/

piracy-check
Anairkoen Schno 6 years ago
parent
commit
f3a27c90f9
3 changed files with 162 additions and 36 deletions
  1. +1
    -0
      IPA.Injector/IPA.Injector.csproj
  2. +2
    -36
      IPA.Injector/Injector.cs
  3. +159
    -0
      IPA.Injector/LibLoader.cs

+ 1
- 0
IPA.Injector/IPA.Injector.csproj View File

@ -49,6 +49,7 @@
<Compile Include="Bootstrapper.cs" />
<Compile Include="ConsoleWindow.cs" />
<Compile Include="Injector.cs" />
<Compile Include="LibLoader.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="WtfThisDoesntNeedToExist.cs" />
</ItemGroup>


+ 2
- 36
IPA.Injector/Injector.cs View File

@ -19,10 +19,10 @@ namespace IPA.Injector
injected = true;
#region Add Library load locations
AppDomain.CurrentDomain.AssemblyResolve += AssemblyLibLoader;
AppDomain.CurrentDomain.AssemblyResolve += LibLoader.AssemblyLibLoader;
try
{
if (!SetDllDirectory(Path.Combine(Environment.CurrentDirectory, "Libs", "Native")))
if (!SetDllDirectory(LibLoader.NativeDir))
{
libLoader.Warn("Unable to add native library path to load path");
}
@ -39,40 +39,6 @@ namespace IPA.Injector
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetDllDirectory(string lpPathName);
#region Managed library loader
private static string libsDir;
private static Assembly AssemblyLibLoader(object source, ResolveEventArgs e)
{
if (libsDir == null)
libsDir = Path.Combine(Environment.CurrentDirectory, "Libs");
var asmName = new AssemblyName(e.Name);
Log(Level.Debug, $"Resolving library {asmName}");
var testFilen = Path.Combine(libsDir, $"{asmName.Name}.{asmName.Version}.dll");
Log(Level.Debug, $"Looking for file {testFilen}");
if (File.Exists(testFilen))
return Assembly.LoadFile(testFilen);
Log(Level.Critical, $"Could not load library {asmName}");
return null;
}
private static void Log(Level lvl, string message)
{ // multiple proxy methods to delay loading of assemblies until it's done
if (LogCreated)
AssemblyLibLoaderCallLogger(lvl, message);
else
if (((byte)lvl & (byte)StandardLogger.PrintFilter) != 0)
Console.WriteLine($"[{lvl}] {message}");
}
private static void AssemblyLibLoaderCallLogger(Level lvl, string message)
{
libLoader.Log(lvl, message);
}
#endregion
private static void Bootstrapper_Destroyed()
{
PluginComponent.Create();


+ 159
- 0
IPA.Injector/LibLoader.cs View File

@ -0,0 +1,159 @@
using IPA.Logging;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using static IPA.Logging.Logger;
namespace IPA.Injector
{
internal class LibLoader
{
public static string LibsDir { get; set; } = Path.Combine(Environment.CurrentDirectory, "Libs");
public static string NativeDir { get; set; } = Path.Combine(LibsDir, "Native");
private static Dictionary<string, string> filenameLocations = null;
public static Assembly AssemblyLibLoader(object source, ResolveEventArgs e)
{
var asmName = new AssemblyName(e.Name);
Log(Level.Debug, $"Resolving library {asmName}");
if (filenameLocations == null)
{
filenameLocations = new Dictionary<string, string>();
foreach (var fn in TraverseTree(LibsDir, s => s != NativeDir))
filenameLocations.Add(fn.Name, fn.FullName);
}
var testFilen = $"{asmName.Name}.{asmName.Version}.dll";
Log(Level.Debug, $"Looking for file {testFilen}");
if (filenameLocations.TryGetValue(testFilen, out string path))
{
Log(Level.Debug, $"Found file {testFilen} as {path}");
if (File.Exists(path))
{
return Assembly.LoadFrom(path);
}
else
{
Log(Level.Critical, $"but {path} no longer exists!");
}
}
Log(Level.Critical, $"No library {asmName} found");
return null;
}
private static void Log(Level lvl, string message)
{ // multiple proxy methods to delay loading of assemblies until it's done
if (LogCreated)
AssemblyLibLoaderCallLogger(lvl, message);
else
if (((byte)lvl & (byte)StandardLogger.PrintFilter) != 0)
Console.WriteLine($"[{lvl}] {message}");
}
private static void AssemblyLibLoaderCallLogger(Level lvl, string message)
{
libLoader.Log(lvl, message);
}
// https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/file-system/how-to-iterate-through-a-directory-tree
private static IEnumerable<FileInfo> TraverseTree(string root, Func<string, bool> dirValidator = null)
{
if (dirValidator == null) dirValidator = (s) => true;
// Data structure to hold names of subfolders to be
// examined for files.
Stack<string> dirs = new Stack<string>(32);
if (!System.IO.Directory.Exists(root))
{
throw new ArgumentException();
}
dirs.Push(root);
while (dirs.Count > 0)
{
string currentDir = dirs.Pop();
string[] subDirs;
try
{
subDirs = System.IO.Directory.GetDirectories(currentDir);
}
// An UnauthorizedAccessException exception will be thrown if we do not have
// discovery permission on a folder or file. It may or may not be acceptable
// to ignore the exception and continue enumerating the remaining files and
// folders. It is also possible (but unlikely) that a DirectoryNotFound exception
// will be raised. This will happen if currentDir has been deleted by
// another application or thread after our call to Directory.Exists. The
// choice of which exceptions to catch depends entirely on the specific task
// you are intending to perform and also on how much you know with certainty
// about the systems on which this code will run.
catch (UnauthorizedAccessException e)
{
//Console.WriteLine(e.Message);
continue;
}
catch (System.IO.DirectoryNotFoundException e)
{
//Console.WriteLine(e.Message);
continue;
}
string[] files = null;
try
{
files = System.IO.Directory.GetFiles(currentDir);
}
catch (UnauthorizedAccessException e)
{
//Console.WriteLine(e.Message);
continue;
}
catch (System.IO.DirectoryNotFoundException e)
{
//Console.WriteLine(e.Message);
continue;
}
// Push the subdirectories onto the stack for traversal.
// This could also be done before handing the files.
foreach (string str in subDirs)
if (dirValidator(str)) dirs.Push(str);
// Perform the required action on each file here.
// Modify this block to perform your required task.
foreach (string file in files)
{
FileInfo nextValue = null;
try
{
// Perform whatever action is required in your scenario.
nextValue = new System.IO.FileInfo(file);
//Console.WriteLine("{0}: {1}, {2}", fi.Name, fi.Length, fi.CreationTime);
}
catch (System.IO.FileNotFoundException e)
{
// If file was deleted by a separate application
// or thread since the call to TraverseTree()
// then just continue.
//Console.WriteLine(e.Message);
continue;
}
yield return nextValue;
}
}
}
}
}

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