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Extract assembly resource management from UnityHeader to ResourceHelper

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This commit is contained in:
Katy Coe
2020-07-20 07:05:20 +02:00
parent 964685e44a
commit ea91c2b4ec
2 changed files with 50 additions and 46 deletions
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59
Il2CppInspector.Common/Cpp/UnityHeaders/UnityHeader.cs
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@@ -34,62 +34,29 @@ namespace Il2CppInspector.Cpp.UnityHeaders
public override string ToString() => Version.ToString();
// Return the contents of this header file as a string
public string GetHeaderText() {
string resourceName = typeof(UnityHeader).Namespace + "." + HeaderFilename;
Assembly assembly = Assembly.GetCallingAssembly();
using Stream stream = assembly.GetManifestResourceStream(resourceName);
if (stream == null) {
throw new FileNotFoundException(resourceName);
}
using StreamReader reader = new StreamReader(stream);
string result = reader.ReadToEnd();
return result;
}
public string GetHeaderText() => ResourceHelper.GetText(typeof(UnityHeader).Namespace + "." + HeaderFilename);
// List all header files embedded into this build of Il2CppInspector
public static IEnumerable<UnityHeader> GetAllHeaders() {
string prefix = typeof(UnityHeader).Namespace + ".";
Assembly assembly = Assembly.GetExecutingAssembly();
return assembly.GetManifestResourceNames()
.Where(s => s.StartsWith(prefix) && s.EndsWith(".h"))
.Select(s => new UnityHeader(s.Substring(prefix.Length)));
}
public static IEnumerable<UnityHeader> GetAllHeaders() => ResourceHelper.GetNamesForNamespace(typeof(UnityHeader).Namespace)
.Where(s => s.EndsWith(".h"))
.Select(s => new UnityHeader(s.Substring(typeof(UnityHeader).Namespace.Length + 1)));
// List all API header files and versions embedded into this build of Il2CppInspector
public static IEnumerable<(string resourceName, UnityVersion minVersion, UnityVersion maxVersion)> GetAPIList() {
string prefix = "Il2CppInspector.Cpp.Il2CppAPIHeaders.";
Assembly assembly = Assembly.GetExecutingAssembly();
var versions = new List<(string resourceName, UnityVersion minVersion, UnityVersion maxVersion)>();
foreach (var headerFilename in assembly.GetManifestResourceNames().Where(s => s.StartsWith(prefix) && s.EndsWith(".h"))) {
var bits = headerFilename.Substring(prefix.Length).Replace(".h", "").Split("-");
var min = new UnityVersion(bits[0]);
UnityVersion max = min;
if (bits.Length == 2 && bits[1] != "")
max = new UnityVersion(bits[1]);
versions.Add((headerFilename, min, max));
}
return versions;
public static Dictionary<string, UnityVersionRange> GetAllAPIs() {
var list = ResourceHelper.GetNamesForNamespace("Il2CppInspector.Cpp.Il2CppAPIHeaders");
return list.Select(i => new {
Key = i,
Value = UnityVersionRange.FromFilename(i),
}).ToDictionary(kv => kv.Key, kv => kv.Value);
}
// Get the header file which supports the given version of Unity
public static UnityHeader GetHeaderForVersion(string version) => GetHeaderForVersion(new UnityVersion(version));
public static UnityHeader GetHeaderForVersion(UnityVersion version) => GetAllHeaders().First(h => h.Version.Contains(version));
public static string GetAPIResourceNameForVersion(UnityVersion version) =>
GetAPIList().First(v => version.CompareTo(v.minVersion) >= 0 && (v.maxVersion == null || version.CompareTo(v.maxVersion) <= 0)).resourceName;
public static string GetAPITextForVersion(UnityVersion version) {
var apiResource = GetAPIResourceNameForVersion(version);
Assembly assembly = Assembly.GetCallingAssembly();
using Stream stream = assembly.GetManifestResourceStream(apiResource);
if (stream == null) {
throw new FileNotFoundException(apiResource);
}
using StreamReader reader = new StreamReader(stream);
string result = reader.ReadToEnd();
return result;
}
// Get API file resources
public static string GetAPIResourceNameForVersion(UnityVersion version) => GetAllAPIs().First(h => h.Value.Contains(version)).Key;
public static string GetAPITextForVersion(UnityVersion version) => ResourceHelper.GetText(GetAPIResourceNameForVersion(version));
// Guess which header file(s) correspond to the given metadata+binary.
// Note that this may match multiple headers due to structural changes between versions

37
Il2CppInspector.Common/ResourceHelper.cs Normal file
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@@ -0,0 +1,37 @@
/*
Copyright 2017-2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
Copyright 2020 Robert Xiao - https://robertxiao.ca
All rights reserved.
*/
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using Il2CppInspector.Cpp.UnityHeaders;
namespace Il2CppInspector
{
internal static class ResourceHelper
{
// Get a string resource
public static string GetText(string resourceName) {
Assembly assembly = Assembly.GetCallingAssembly();
using Stream stream = assembly.GetManifestResourceStream(resourceName);
if (stream == null) {
throw new FileNotFoundException(resourceName);
}
using StreamReader reader = new StreamReader(stream);
string result = reader.ReadToEnd();
return result;
}
// Get a list of resources for a namespace
public static IEnumerable<string> GetNamesForNamespace(string ns) {
Assembly assembly = Assembly.GetExecutingAssembly();
return assembly.GetManifestResourceNames().Where(s => s.StartsWith(ns + "."));
}
}
}