101 lines
4.0 KiB
C++
101 lines
4.0 KiB
C++
#include "extensions.h"
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#include <winhttp.h>
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#include <ctime>
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std::wstring GetTranslationUri(const wchar_t* text, unsigned int TKK)
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{
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// If no TKK available, use this uri. Can't use too much or google will detect unauthorized access.
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if (!TKK) return std::wstring(L"/translate_a/single?client=gtx&dt=ld&dt=rm&dt=tq=") + text;
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// Artikash 8/19/2018: reverse engineered from translate.google.com
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char* utf8text = new char[wcslen(text) * 4];
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WideCharToMultiByte(CP_UTF8, 0, text, -1, utf8text, wcslen(text) * 4, NULL, NULL);
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unsigned int a = (unsigned int)(_time64(NULL) / 3600), b = a; // <- the first part of TKK
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for (int i = 0; utf8text[i];)
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{
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a += (unsigned char)utf8text[i++];
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a += a << 10;
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a ^= a >> 6;
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}
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a += a << 3;
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a ^= a >> 11;
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a += a << 15;
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a ^= TKK;
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a %= 1000000;
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b ^= a;
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delete[] utf8text;
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return std::wstring(L"/translate_a/single?client=t&dt=ld&dt=rm&dt=t&tk=") + std::to_wstring(a) + L"." + std::to_wstring(b) + L"&q=" + std::wstring(text);
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}
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extern "C"
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{
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/**
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* Param sentence: pointer to sentence received by NextHooker (UTF-16).
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* You should not modify this sentence. If you want NextHooker to receive a modified sentence, copy it into your own buffer and return that.
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* Param miscInfo: pointer to start of singly linked list containing misc info about the sentence.
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* Return value: pointer to sentence NextHooker takes for future processing and display.
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* Return 'sentence' unless you created a new sentence/buffer as mentioned above.
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* NextHooker will display the sentence after all extensions have had a chance to process and/or modify it.
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* THIS FUNCTION MAY BE RUN SEVERAL TIMES CONCURRENTLY: PLEASE ENSURE THAT IT IS THREAD SAFE!
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*/
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__declspec(dllexport) const wchar_t* OnNewSentence(const wchar_t* sentence, const InfoForExtension* miscInfo)
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{
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static HINTERNET internet = NULL;
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if (!internet) internet = WinHttpOpen(L"Mozilla/5.0 NextHooker", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, NULL, NULL, 0);
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static unsigned int TKK = 0;
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wchar_t error[] = L"Error while translating.";
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wchar_t translation[10000] = {};
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wchar_t* message = error;
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if (wcslen(sentence) > 2000 || GetProperty("hook address", miscInfo) == -1) return sentence;
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if (internet)
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{
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if (HINTERNET connection = WinHttpConnect(internet, L"translate.google.com", INTERNET_DEFAULT_HTTPS_PORT, 0))
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{
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if (HINTERNET request = WinHttpOpenRequest(connection, L"GET", L"/", NULL, NULL, NULL, WINHTTP_FLAG_SECURE))
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{
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if (WinHttpSendRequest(request, NULL, 0, NULL, 0, 0, NULL))
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{
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DWORD bytesRead;
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char buffer[100000] = {}; // Google Translate page is ~64kb
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WinHttpReceiveResponse(request, NULL);
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WinHttpReadData(request, buffer, 100000, &bytesRead);
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TKK = strtoll(strstr(buffer, "a\\x3d") + 5, nullptr, 10) + strtoll(strstr(buffer, "b\\x3d") + 5, nullptr, 10);
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}
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WinHttpCloseHandle(request);
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}
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WinHttpCloseHandle(connection);
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}
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if (HINTERNET connection = WinHttpConnect(internet, L"translate.google.com", INTERNET_DEFAULT_HTTPS_PORT, 0))
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{
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if (HINTERNET request = WinHttpOpenRequest(connection, L"GET", GetTranslationUri(sentence, TKK).c_str(), NULL, NULL, NULL, WINHTTP_FLAG_ESCAPE_DISABLE | WINHTTP_FLAG_SECURE))
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{
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if (WinHttpSendRequest(request, NULL, 0, NULL, 0, 0, NULL))
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{
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DWORD bytesRead;
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char buffer[10000] = {};
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WinHttpReceiveResponse(request, NULL);
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WinHttpReadData(request, buffer, 10000, &bytesRead);
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// Response formatted as JSON: starts with '[[["'
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if (buffer[0] == '[')
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{
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MultiByteToWideChar(CP_UTF8, 0, buffer + 4, (int)((strstr(buffer, "\",\"")) - (buffer + 4)), translation, 10000);
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message = translation;
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for (int i = -1; translation[++i];) if (translation[i] == L'\\') translation[i] = 0x200b;
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}
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}
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WinHttpCloseHandle(request);
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}
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WinHttpCloseHandle(connection);
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}
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}
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wchar_t* newSentence = (wchar_t*)malloc((wcslen(sentence) + 3 + wcslen(message)) * sizeof(wchar_t));
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swprintf(newSentence, wcslen(sentence) + 3 + wcslen(message), L"%s%s%s", sentence, L"\r\n", message);
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return newSentence;
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}
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} |