PolygonDLL/PolygonClientUtilities/Http.cpp

108 lines
3.3 KiB
C++

#include "pch.h"
#include "Http.h"
#include "Util.h"
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)
{
CURLU* curl = curl_url();
CURLUcode result = curl_url_set(curl, CURLUPART_URL, _this->url.c_str(), CURLU_NON_SUPPORT_SCHEME);
Http _changed = *_this;
if (!result)
{
char* path;
char* host;
char* query;
curl_url_get(curl, CURLUPART_PATH, &path, 0);
curl_url_get(curl, CURLUPART_HOST, &host, 0);
curl_url_get(curl, CURLUPART_QUERY, &query, 0);
if (path != NULL && host != NULL && query != NULL)
{
std::string _path = Util::toLower(std::string(path));
std::string _host = std::string(host);
std::string _query = std::string(query);
if (_host == "roblox.com" || _host == "www.roblox.com")
{
if (_path == "/asset" || _path == "/asset/" || _path == "/asset/default.ashx")
{
_changed.url = "https://assetdelivery.roblox.com/v1/asset/?" + _query;
_this = &_changed;
}
else if (_path == "/thumbs/asset.ashx")
{
// hmmm
// https://www.roblox.com/asset/request-thumbnail-fix?assetId=1818&assetVersionId=0&width=420&height=420&imageFormat=Png&thumbnailFormatId=296&overrideModeration=false
// instead of proxying requests through the webserver, can we fetch this response in the client and parse the json?
// we can do the same thing for /avatar/request/thumbnail-fix (https://www.roblox.com/avatar/request-thumbnail-fix?userId=86890093&width=100&height=100&imageFormat=Png&thumbnailFormatId=41&dummy=false)
_changed.url = "http://polygon.pizzaboxer.xyz/Thumbs/Asset.ashx?" + _query + "&roblox=true";
_this = &_changed;
}
}
}
}
Http__httpGetPostWinInet(_this, isPost, a3, compressData, additionalHeaders, a6);
}
BOOL __fastcall Http__trustCheck_hook(const char* url)
{
if (strlen(url) == 7 && !Util::isASCII(url))
{
// so the client does this really fucking stupid thing where if it opens an ie window,
// it passes a char**, and not a char*
// no idea if thats a detours quirk (i doubt it) or if thats how its just actually handled
// practically no url is ever going to be seven characters long so it doesn't really matter
url = *(char**)url;
}
printf("Http::trustCheck() %s\n", url);
CURLU* curl = curl_url();
CURLUcode result = curl_url_set(curl, CURLUPART_URL, url, 0);
std::string _url = std::string(url);
// checking for embedded schemes must come BEFORE checking if it's valid
// cURL does not treat embedded resources as URLs
if (_url == "about:blank")
{
return true;
}
for (std::string allowedEmbeddedScheme : Util::allowedEmbeddedSchemes)
{
if (_url.find(allowedEmbeddedScheme + ":") == 0)
{
return true;
}
}
if (result != 0)
{
return false;
}
char* scheme;
char* host;
curl_url_get(curl, CURLUPART_SCHEME, &scheme, 0);
curl_url_get(curl, CURLUPART_HOST, &host, 0);
if (std::find(Util::allowedSchemes.begin(), Util::allowedSchemes.end(), std::string(scheme)) != Util::allowedSchemes.end())
{
return std::find(Util::allowedHosts.begin(), Util::allowedHosts.end(), std::string(host)) != Util::allowedHosts.end();
}
return false;
}