149 lines
3.8 KiB
C++
149 lines
3.8 KiB
C++
#include "pch.h"
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#include "Utils.h"
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#include "Hooks.h"
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typedef int(__cdecl* keyToLE_v25)(unsigned int* dest, int* key, int bits);
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keyToLE_v25 keyToLEFunc_v25_hook = nullptr;
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typedef int(__cdecl* keyToLE_v30)(unsigned int* dest, int* key, int bits, bool isEncoded);
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keyToLE_v30 keyToLEFunc_v30_hook = nullptr;
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std::string prevKeyStr = std::string();
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int __cdecl keyToLE_hook_v25(unsigned int* dest, int* key, int bits)
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{
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if (bits == 128)
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{
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BYTE keyBuffer[16];
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BYTE* keyBufPtr = keyBuffer;
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memcpy(keyBufPtr, key, 16);
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// Only print out key if it is different
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std::string newKeyStr = Utils::HexString(keyBufPtr, 16);
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if (newKeyStr.compare(prevKeyStr) != 0)
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std::cout << "Key: " << newKeyStr << std::endl << std::endl;
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prevKeyStr = newKeyStr;
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}
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return keyToLEFunc_v25_hook(dest, key, bits);
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}
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int __cdecl keyToLE_hook_v30(unsigned int* dest, int* key, int bits, bool isEncoded)
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{
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//std::cout << "TEST" << std::endl;
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if (bits == 128)
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{
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void* decodedKeyPtr = key;
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if (isEncoded)
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{
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// key is encoded with some sort of algorithm; decode it here
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unsigned int keyDecoded[4];
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unsigned int uVar1;
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unsigned int keyPtr;
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unsigned int uVar3;
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int index;
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keyPtr = *key;
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index = 15;
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uVar3 = key[1];
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keyDecoded[0] = key[2];
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keyDecoded[1] = key[3];
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keyDecoded[2] = key[4];
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keyDecoded[3] = key[5];
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do
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{
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uVar1 = keyDecoded[index - 1 & 3];
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keyDecoded[index & 3] =
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keyDecoded[index & 3] +
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(((((uVar1 + index + keyPtr & uVar1 * 16 + uVar3) * 2 + uVar1 * -17) -
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index) - uVar3) - keyPtr);
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index = index - 1;
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}
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while (index >= 0);
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decodedKeyPtr = &keyDecoded;
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}
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// Copy key bytes to new buffer
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unsigned char keyBuffer[16];
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unsigned char* keyBufPtr = keyBuffer;
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memcpy(keyBufPtr, decodedKeyPtr, 16);
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// Only print out key if it is different
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std::string newKeyStr = Utils::HexString(keyBufPtr, 16);
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if (newKeyStr.compare(prevKeyStr) != 0)
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std::cout << "Key: " << newKeyStr << std::endl << std::endl;
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prevKeyStr = newKeyStr;
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}
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return keyToLEFunc_v30_hook(dest, key, bits, isEncoded);
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}
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char* GetAddrV26()
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{
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BYTE ref_v19 = 0x55;
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BYTE* byteAtAddrStr = (BYTE*)0x010800C0;
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// Byte at byteAtAddr in 1.1.26-19 is 0x55
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if (*byteAtAddrStr == ref_v19)
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return (char*)0x010800C0;
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else
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return (char*)0x0107FEC0;
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}
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char* GetAddrV27()
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{
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BYTE ref_v7 = 0x55;
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BYTE* byteAtAddrStr = (BYTE*)0x01068F90;
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// Byte at byteAtAddr in 1.1.26-19 is 0x55
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if (*byteAtAddrStr == ref_v7)
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return (char*)0x01068F90;
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else
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return (char*)0x01068F20;
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}
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void Hooks::Init()
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{
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int spotifyVer = Utils::GetSpotifyVersion();
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// Method is stripped from Release build if this isn't here :/
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std::cout << "Spotify version: " << Utils::GetSpotifyVersion() << std::endl;
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switch (spotifyVer)
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{
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case 25:
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keyToLEFunc_v25_hook = (keyToLE_v25)Utils::TrampHook32((char*)0x0106B920, (char*)keyToLE_hook_v25, 6);
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break;
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case 26:
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// Two 1.1.26 versions
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keyToLEFunc_v25_hook = (keyToLE_v25)Utils::TrampHook32(GetAddrV26(), (char*)keyToLE_hook_v25, 6);
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break;
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case 27:
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// Two 1.1.27 versions
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keyToLEFunc_v25_hook = (keyToLE_v25)Utils::TrampHook32(GetAddrV27(), (char*)keyToLE_hook_v25, 6);
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break;
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/*case 28:
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//keyToLEFunc_v25_hook = (keyToLE_v25)Utils::TrampHook32((char*)0x0106B920, (char*)keyToLE_hook_v25, 6);
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break;
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case 29:
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//keyToLEFunc_v25_hook = (keyToLE_v25)Utils::TrampHook32((char*)0x0106B920, (char*)keyToLE_hook_v25, 6);
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break;*/
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case 30:
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keyToLEFunc_v30_hook = (keyToLE_v30)Utils::TrampHook32((char*)0x0108E840, (char*)keyToLE_hook_v30, 6);
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break;
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case 44:
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keyToLEFunc_v30_hook = (keyToLE_v30)Utils::TrampHook32((char*)0x010CABC0, (char*)keyToLE_hook_v30, 6);
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break;
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case 45:
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keyToLEFunc_v30_hook = (keyToLE_v30)Utils::TrampHook32((char*)0x010CF780, (char*)keyToLE_hook_v30, 6);
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break;
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}
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} |