HttpPostFile/PostFile.cpp at master · archtim/HttpPostFile · GitHub

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#include"PostFile.h"

#defineDEFAULT_USERAGENT"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.1"
#defineMETHOD_POST"POST"
#defineBUFSIZE1024

structFileCloser
{
typedefHANDLE pointer;

voidoperator()(HANDLE h)
 {
if (h != INVALID_HANDLE_VALUE)
CloseHandle(h);
 }
};

structInetCloser
{
typedefHINTERNET pointer;

voidoperator()(HINTERNET h)
 {
if (h != NULL)
InternetCloseHandle(h);
 }
};

char* CPostFile::WCharToChar(wchar_t* szUnicodeString) {
char* buffer = newchar[wcslen(szUnicodeString) + 1];
size_t convertedChars = 0;
wcstombs_s(&convertedChars, buffer, wcslen(szUnicodeString) + 1, szUnicodeString, _TRUNCATE);
return buffer;
};

boolCPostFile::WriteToInternet(HINTERNET hInet, constvoid* Data, DWORD DataSize)
{
constBYTE* pData = (constBYTE*)Data;
DWORD dwBytes;

while (DataSize > 0)
 {
if (!InternetWriteFile(hInet, pData, DataSize, &dwBytes))
returnfalse;
 pData += dwBytes;
 DataSize -= dwBytes;
 }

returntrue;
}


intCPostFile::PostFile(LPCSTR szFile, LPCSTR szServer, INTERNET_PORT wPort, LPCSTR szRoute) {

constchar* szHeaders = "Content-Type: multipart/form-data; boundary=----974767299852498929531610575";
constchar* szContent = "------974767299852498929531610575\r\nContent-Disposition: form-data; name=\"file\"; filename=\"2023-04-02-07-29-50-image.jpg\"\r\nContent-Type: application/octet-stream\r\n\r\n";
constchar* szEndData = "\r\n------974767299852498929531610575--\r\n";

 std::unique_ptr<HANDLE, FileCloser> hIn(CreateFileA(szFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL));
if (hIn.get() == INVALID_HANDLE_VALUE)
 {
 std::cerr << "CreateFile Error" << std::endl;
return1;
 }

DWORD dwFileSize = GetFileSize(hIn.get(), NULL);
if (dwFileSize == INVALID_FILE_SIZE)
 {
 std::cerr << "GetFileSize Error" << std::endl;
return1;
 }

 std::unique_ptr<HINTERNET, InetCloser> io(InternetOpenA(DEFAULT_USERAGENT, INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0));
if (io.get() == NULL)
 {
 std::cerr << "InternetOpen Error" << std::endl;
return1;
 }

 std::unique_ptr<HINTERNET, InetCloser> ic(InternetConnectA(io.get(), szServer, wPort, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0));
if (ic.get() == NULL)
 {
 std::cerr << "InternetConnect Error" << std::endl;
return1;
 }

 std::unique_ptr<HINTERNET, InetCloser> hreq(HttpOpenRequestA(ic.get(), METHOD_POST, szRoute, NULL, NULL, NULL, 0, 0));
if (hreq.get() == NULL)
 {
 std::cerr << "HttpOpenRequest Error" << std::endl;
return1;
 }

if (!HttpAddRequestHeadersA(hreq.get(), szHeaders, -1, HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDREQ_FLAG_ADD))
 {
 std::cerr << "HttpAddRequestHeaders Error" << std::endl;
return1;
 }

DWORDsContentSize = static_cast<DWORD>(strlen(szContent));
DWORDsEndDataSize = static_cast<DWORD>(strlen(szEndData));

INTERNET_BUFFERS bufferIn = {};
 bufferIn.dwStructSize = sizeof(INTERNET_BUFFERS);
 bufferIn.dwBufferTotal = sContentSize + dwFileSize + sEndDataSize;

if (!HttpSendRequestEx(hreq.get(), &bufferIn, NULL, HSR_INITIATE, 0))
 {
 std::cerr << "HttpSendRequestEx Error" << std::endl;
return1;
 }

if (!WriteToInternet(hreq.get(), szContent, sContentSize))
 {
 std::cerr << "InternetWriteFile Error" << std::endl;
return1;
 }

char szData[BUFSIZE];
DWORD dw = 0, dwBytes;

while (dw < dwFileSize)
 {
if (!ReadFile(hIn.get(), szData, (((dwFileSize - dw) < (sizeof(szData))) ? (dwFileSize - dw) : (sizeof(szData))), &dwBytes, NULL))
 {
 std::cerr << "ReadFile Error" << std::endl;
return1;
 }

if (!WriteToInternet(hreq.get(), szData, dwBytes))
 {
 std::cerr << "InternetWriteFile Error" << std::endl;
return1;
 }

 dw += dwBytes;
 }

if (!WriteToInternet(hreq.get(), szEndData, sEndDataSize))
 {
 std::cerr << "InternetWriteFile Error" << std::endl;
return1;
 }

if (!HttpEndRequest(hreq.get(), NULL, HSR_INITIATE, 0))
 std::cerr << "HttpEndRequest Error" << std::endl;

return0;
}