2012-01-21 175 views
2

我試圖從我正在使用HTTP POST請求到遊戲網站的遊戲發送文件。當我使用HTML頁面上的表單發送文件時,它工作正常。但是,我一直無法在遊戲中模擬相同的東西。我收到的響應代碼爲200,表示請求已成功完成,但上傳腳本指示它收到GET請求,並且$ _FILES和$ _POST數組爲空。我已經在Wireshark中查看了HTML表單的POST和遊戲POST的輸出,但一直未能檢測到兩者之間的任何有意義的差異。 (如果我知道如何完全複製HTML表單的POST方法,我會,但我認爲這是不可能的。)無法獲取HTTP POST請求以正常工作

無論如何,這裏是我用來發送它的代碼。謝謝!

HINTERNET   hInternet; 
HINTERNET   hConnect; 
HINTERNET   hRequest; 
INTERNET_BUFFERS Buffers; 
DWORD    dwBytesWritten; 
DWORD    dwNumBytesToWrite; 
char    szBoundary[32]; 
char    szContentTypeHeader[64]; 
char    szFileHeader[256]; 
char    szFileFooter[4]; 
char    szBodyFooter[32]; 
ULONG    ulTotalBytesWritten; 
ULONG    ulOffset; 
ULONG    ulContentLength; 

// Get a handle for working with the Internet. 
hInternet = InternetOpen("Wrack", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0); 
if (hInternet == NULL) 
    return (false); 

// Open an HTTP session for the site. 
hConnect = InternetConnect(hInternet, "wrackgame.com", INTERNET_DEFAULT_HTTP_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, 0, NULL); 
if (hConnect == NULL) 
{ 
    InternetCloseHandle(hInternet); 

    return (false); 
} 

// Open the POST request. 
hRequest = HttpOpenRequest(hConnect, "POST", "leaderboard/upload_file.php", NULL, "http://www.wrackgame.com/leaderboard/upload.html", NULL, 0, NULL); 
if (hRequest == NULL) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 

    return (false); 
} 

// Generate our various headers and footers. 
sprintf_s(szBoundary, "----%04x%04x%04x", rand() % 0xffff, rand() % 0xffff, rand() % 0xffff); 
sprintf_s(szContentTypeHeader, "Content-Type: multipart/form-data; boundary=%s", szBoundary); 
sprintf_s(szFileHeader, "--%s\r\nContent-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\nContent-Type: application/octet-stream\r\n\r\n", szBoundary, "file", "testreplay.wrp"); 
sprintf_s(szFileFooter, "\r\n"); 
sprintf_s(szBodyFooter, "--%s--\r\n", szBoundary); 

// Build our header. 
if (HttpAddRequestHeaders(hRequest, szContentTypeHeader, -1, HTTP_ADDREQ_FLAG_ADD) == false) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 
    InternetCloseHandle(hRequest); 

    return (false); 
} 

// Calculate how much data we'll be sending. 
ulContentLength = network_CalcContentLength(szFileHeader, szFileFooter, szBodyFooter); 

// Initialize our buffers. 
memset(&Buffers, 0, sizeof(INTERNET_BUFFERS)); 
Buffers.dwStructSize = sizeof(INTERNET_BUFFERS); 
Buffers.dwBufferTotal = ulContentLength; 

// Send our HTTP request. 
if (HttpSendRequestEx(hRequest, &Buffers, NULL, HSR_INITIATE, NULL) == false) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 
    InternetCloseHandle(hRequest); 

    return (false); 
} 

// Send the header. 
ulTotalBytesWritten = 0; 
if (InternetWriteFile(hRequest, szFileHeader, strlen(szFileHeader), &dwBytesWritten) == false) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 
    InternetCloseHandle(hRequest); 

    return (false); 
} 
ulTotalBytesWritten += dwBytesWritten; 

// Next, write the body of the replay. 
ulOffset = 0; 
while (ulOffset < (DWORD)REPLAY_GetReplaySize()) 
{ 
    // Determine how many bytes of the replay to send. If we're almost 
    // done, send less than 1024 bytes. 
    dwNumBytesToWrite = min(1024, REPLAY_GetReplaySize() - ulOffset); 

    // Send a piece of the replay and log how many bytes we actually 
    // transferred. 
    if (InternetWriteFile(hRequest, REPLAY_GetReplayData() + ulOffset, dwNumBytesToWrite, &dwBytesWritten) == false) 
    { 
     InternetCloseHandle(hInternet); 
     InternetCloseHandle(hConnect); 
     InternetCloseHandle(hRequest); 

     return (false); 
    } 
    ulTotalBytesWritten += dwBytesWritten; 

    // Increment the offset of the replay buffer. 
    ulOffset += 1024; 
} 

// Send our file footer. 
if (InternetWriteFile(hRequest, szFileFooter, strlen(szFileFooter), &dwBytesWritten) == false) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 
    InternetCloseHandle(hRequest); 

    return (false); 
} 
ulTotalBytesWritten += dwBytesWritten; 

// Send our body footer. 
if (InternetWriteFile(hRequest, szBodyFooter, strlen(szBodyFooter), &dwBytesWritten) == false) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 
    InternetCloseHandle(hRequest); 

    return (false); 
} 
ulTotalBytesWritten += dwBytesWritten; 

// Close our request now that we're done. 
if (HttpEndRequest(hRequest, NULL, 0, NULL) == false) 
{ 
    InternetCloseHandle(hInternet); 
    InternetCloseHandle(hConnect); 
    InternetCloseHandle(hRequest); 

    return (false); 
} 

InternetCloseHandle(hInternet); 
InternetCloseHandle(hConnect); 
InternetCloseHandle(hRequest); 

// No need to do anything more! 
return (true); 
+0

我不確定它是否會有所幫助,但是您是否試過編寫一個數據塊而不是單個塊? – Deanna

+0

@Deanna:我會怎麼做?據我所知,我必須使用幾個函數來啓動該進程,如HttpSendRequest,在使用InternetWriteFile發送數據包之前發送數據包。 – Carnevil

+0

要開始這個過程,是的,但是你至少需要4次調用'InternetWriteFile()'這可能是導致問題的時機。 – Deanna

回答

1

我試圖回答這個問題之前的例子,但我想它沒打通。無論如何,我感覺很蠢。它現在工作完美。它不工作的原因是因爲我將InternetOpen()的第二個參數設置爲「wrackgame.com」,而不是「www.wrackgame.com」。我不知道爲什麼它阻止了它的運行 - 特別是考慮到我的上傳腳本/leaderboard/upload_file.php正在執行。這不像流量沒有到達服務器。奇怪。

無論如何,感謝大家的幫助!

0

我不熟悉的lib的WinINet,但libcurl中有一個c interface包括一些容易遵循如何setup a HTTP POST request

+0

我不想使用libcurl。這應該能夠使用常規的Wininet代碼工作。我目前的代碼有什麼問題,我至少能診斷問題該怎麼辦?如果我有一些線索,說明爲什麼它不能正常工作,我至少可以從那裏開始。 – Carnevil