forked from zombieb/undead-universal-patch-il2cpp
83 lines
3.3 KiB
C#
83 lines
3.3 KiB
C#
using System;
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using System.Reflection;
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using System.Security.Cryptography;
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using BestHTTP;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls;
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using HarmonyLib;
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using undead_universal_patch_il2cpp.Core;
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using undead_universal_patch_il2cpp.Core.Config;
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namespace undead_universal_patch_il2cpp.Patches
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{
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[HarmonyPatch]
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public class BestHTTPProxy
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{
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static PatchTypesResult patchResult = Util.PreparePatchSpecificTypes(
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"BestHTTP request URL rewrite patch",
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"BestHTTP.HTTPManager",
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"SendRequest",
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[
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"BestHTTP.HTTPRequest",
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]
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);
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static readonly Type requestType = AccessTools.TypeByName("BestHTTP.HTTPRequest");
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static readonly MethodInfo getHeaderMethod = requestType?.GetMethod("GetFirstHeaderValue");
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static readonly MethodInfo addHeaderMethod = requestType?.GetMethod("AddHeader");
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static readonly PropertyInfo methodTypeProp = requestType?.GetProperty("MethodType");
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static readonly PropertyInfo uriProp = requestType?.GetProperty("Uri");
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static readonly PropertyInfo customCertProp = requestType?.GetProperty("CustomCertificateVerifyer");
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static bool Prepare() => Util.PostRequireTypes(patchResult, [
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getHeaderMethod,
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addHeaderMethod,
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methodTypeProp,
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uriProp,
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customCertProp
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]).Success;
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static MethodBase TargetMethod() => patchResult.Method;
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[HarmonyPrefix]
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static void Prefix(ref object request)
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{
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if (PatchConfig.CertificatePatch.Value) customCertProp.GetSetMethod().Invoke(request, [null]);
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var contentType = (string)getHeaderMethod.Invoke(request, ["Content-Type"]);
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HTTPMethods method = (HTTPMethods)methodTypeProp.GetGetMethod().Invoke(request, []);
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var uriInstance = (Il2CppSystem.Uri)uriProp.GetValue(request, null);
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if (uriInstance == null)
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{
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UniversalPatchPlugin.Log.LogFatal("BestHTTPProxy failed: uriInstance was null.");
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return;
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}
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string beforeUrl = uriInstance.ToString();
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Il2CppSystem.Uri newUri = new(uriInstance.ToString());
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// Start request changes
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if (newUri.Host.Contains("ns.rec.net")) newUri = new Il2CppSystem.Uri(NameserverConfig.NewUrl.Value);
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// Finish request changes
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string afterUrl = newUri.ToString();
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uriProp.SetValue(request, NameserverConfig.Rewrite.Value ? newUri : uriInstance, null);
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if (GenericConfig.LogAllRequests.Value)
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{
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if (GenericConfig.VerboseRequestLogs.Value) UniversalPatchPlugin.Log.LogInfo($"BestHTTP Request Log{(customCertProp.GetGetMethod().Invoke(request, []) == null ? "" : " (verify)")}\n" +
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$" URL Before : {beforeUrl}\n" +
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$" URL After : {(beforeUrl == afterUrl ? "(unmodified)" : afterUrl)}\n" +
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$" Method : {method}\n" +
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$" Content-Type : {contentType ?? "(not set)"}");
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else UniversalPatchPlugin.Log.LogInfo("BestHTTPProxy Request Log\n" +
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$" Before : {beforeUrl}\n" +
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$" After : {afterUrl}");
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}
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}
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}
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}
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