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patcher
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feat: hook HttpGetPostWinInet

This commit is contained in:
rjindael 2023-09-07 16:08:58 -07:00
parent 43968ba91d
commit 17b91d98d1
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GPG Key ID: D069369C906CCF31
3 changed files with 107 additions and 0 deletions
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1
Kiseki.Patcher/Header/Globals.hpp
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@ -11,6 +11,7 @@
#define PUBLIC_KEY 0x06, 0x02, 0x00, 0x00, 0x00, 0xA4, 0x00, 0x00, 0x52, 0x53, 0x41, 0x31, 0x00, 0x04, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0xA5, 0x11, 0xD0, 0x9F, 0xAB, 0x9B, 0x3A, 0x96, 0xC5, 0xBE, 0x50, 0xBB, 0xCA, 0x0C, 0xBB, 0xC8, 0x1A, 0x9C, 0xC1, 0x2F, 0x22, 0x7A, 0x80, 0x2C, 0x31, 0x01, 0xE1, 0x21, 0xC2, 0x7F, 0xE0, 0x10, 0xA1, 0x2D, 0x09, 0xED, 0x10, 0x3E, 0x28, 0xB9, 0xBD, 0x0F, 0x38, 0xDB, 0x52, 0x78, 0xC0, 0xEC, 0x04, 0xD4, 0x00, 0xAD, 0x45, 0xD3, 0xC7, 0x78, 0xF2, 0x83, 0xB5, 0x5B, 0x16, 0x0C, 0x32, 0x5D, 0xB3, 0x3B, 0xDA, 0xA2, 0x9C, 0x73, 0xB2, 0x0C, 0x09, 0x93, 0xD8, 0xF8, 0xD9, 0xC5, 0x75, 0xAB, 0x33, 0x19, 0xD3, 0x6A, 0xAF, 0x20, 0x21, 0x6C, 0x78, 0x31, 0x41, 0xD1, 0xCD, 0x6D, 0x4D, 0xA1, 0x6D, 0x49, 0x3A, 0x6A, 0x33, 0x10, 0x6D, 0x52, 0x33, 0x4A, 0x10, 0x32, 0x3D, 0x42, 0xE6, 0xEC, 0x38, 0x97, 0x2F, 0x05, 0x41, 0xDD, 0xD6, 0xB6, 0xAC, 0x17, 0x4B, 0x7E, 0xFA, 0xFE, 0xA4, 0xD2
#define ADDRESS_HTTP__HTTPGETPOSTWININET 0x006F03B0
#define ADDRESS_HTTP__TRUSTCHECK 0x005B7050
#define ADDRESS_CRYPT__VERIFYSIGNATUREBASE64 0x00809EC0
#define ADDRESS_STANDARDOUT__PRINT 0x005B25E0

18
Kiseki.Patcher/Header/Hooks/Http.hpp
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@ -3,12 +3,30 @@
#include <string>
#include <curl/curl.h>
#include <rapidjson/document.h>
#ifdef SERVER
#include "Hooks/StandardOut.hpp"
#endif
#include "Globals.hpp"
#include "Helpers.hpp"
struct Http
{
#if PADDING_STRUCT != 0
void* padding1[1];
#endif
std::string alternateUrl;
void* padding2[3 + PADDING_STRUCT];
std::string url;
};
typedef void (__thiscall* Http__httpGetPostWinInet_t)(Http* _this, bool isPost, int a3, bool compressData, LPCSTR additionalHeaders, int a6);
typedef bool(__thiscall* Http__trustCheck_t)(const char* url);
void __fastcall Http__httpGetPostWinInet_hook(Http* _this, void*, bool isPost, int a3, bool compressData, LPCSTR additionalHeaders, int a6);
bool __fastcall Http__trustCheck_hook(const char* url);
extern Http__httpGetPostWinInet_t Http__httpGetPostWinInet;
extern Http__trustCheck_t Http__trustCheck;

88
Kiseki.Patcher/Source/Hooks/Http.cpp
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@ -1,7 +1,95 @@
#include "Hooks/Http.hpp"
#define CHECK(condition, code) \
if(!error) { \
if ((condition)) { \
error = code; \
} \
}
Http__httpGetPostWinInet_t Http__httpGetPostWinInet = (Http__httpGetPostWinInet_t)ADDRESS_HTTP__HTTPGETPOSTWININET;
Http__trustCheck_t Http__trustCheck = (Http__trustCheck_t)ADDRESS_HTTP__TRUSTCHECK;
void __fastcall Http__httpGetPostWinInet_hook(Http* _this, void*, bool isPost, int a3, bool compressData, LPCSTR additionalHeaders, int a6)
{
std::pair<bool, std::map<std::string, std::string>> parsed = Helpers::parseURL(_this->url);
Http _changed = *_this;
if (parsed.first)
{
std::map<std::string, std::string> url = parsed.second;
if (!url["path"].empty() && !url["host"].empty() && !url["query"].empty())
{
url["path"] = Helpers::toLower(url["path"]);
if (url["host"] == "roblox.com" || url["host"] == "www.roblox.com")
{
if (url["path"] == "/asset" || url["path"] == "/asset/" || url["path"] == "/asset/default.ashx")
{
_changed.url = "https://assetdelivery.roblox.com/v1/asset/?" + url["query"];
_this = &_changed;
}
else if (url["path"] == "/thumbs/asset.ashx" || url["path"] == "/thumbs/avatar.ashx")
{
std::string api = "https://www.roblox.com/" + std::string(url["path"] == "/thumbs/asset.ashx" ? "asset" : "avatar") + "/request-thumbnail-fix";
std::map<std::string, std::string> source = Helpers::parseQueryString(url["query"]);
std::map<std::string, std::string> fixed = {
{ url["path"] == "/thumbs/asset.ashx" ? "overrideModeration" : "dummy", "false" },
{ "thumbnailFormatId", "0" }
};
for (auto& pair : source)
{
fixed[Helpers::toLower(pair.first)] = pair.second;
}
if (fixed.find("id") != fixed.end())
{
auto handler = fixed.extract("id");
handler.key() = url["path"] == "/thumbs/asset.ashx" ? "assetId" : "userId";
fixed.insert(std::move(handler));
}
api += Helpers::joinQueryString(fixed);
// Get the API response
std::pair<bool, std::string> response = Helpers::httpGet(api);
if (!response.first)
{
throw std::runtime_error("Unexpected error occurred when fetching Roblox API: 0x0");
}
std::string data = response.second;
rapidjson::Document document;
document.Parse(data.c_str());
int error = 0;
CHECK(document.HasParseError(), 0x01);
CHECK(!document.HasMember("d"), 0x02);
CHECK(!document["d"].IsObject(), 0x03);
CHECK(!document["d"].HasMember("url"), 0x04);
CHECK(!document["d"]["url"].IsString(), 0x05);
if (error != 0)
{
throw std::runtime_error("Unexpected error occurred when fetching Roblox API: 0x0" + std::to_string(error));
}
_changed.url = document["d"]["url"].GetString();
_this = &_changed;
}
}
}
}
Http__httpGetPostWinInet(_this, isPost, a3, compressData, additionalHeaders, a6);
}
bool __fastcall Http__trustCheck_hook(const char* url)
{
if (strlen(url) == 7 && !Helpers::isASCII(url))