PHP & C++ $_FILES 和 HttpSendRequestA

Question

将文件从 c++ 上传到 PHP 表单时遇到问题。我看到了与我的问题类似的帖子。

• Upload Image File in C++
• Uploading file to server using C++ HTTP request

根据每个文档和HERE 中列出的文档，所有帐户的代码都应该是正确的。

我也不能在我的实现中使用 CURL。我也愿意。

我尝试将所有数据编码为 BASE64 以缓解任何文件数据问题，但没有骰子。

我仔细检查了我的 php.ini 文件以允许上传。并使用允许我上传文件的简单 HTML 页面测试 PHP 页面。很好，表格给出了正确的结果。

基本上我发送到服务器的标头是：

Host: dzwxgames.com
Connection: close
Content-Length: 418
Origin: http://dzwxgames.com
Content-Type: multipart/form-data; boundary=WrbKitFormBoundaryXtRo8bh7ZpnTrTwd
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36
Pragma: no-cache

--WrbKitFormBoundaryXtRo8bh7ZpnTrTwd
Content-Disposition: form-data; name="file"; filename="02-11-2019 09-44.log"
Content-Type: text/plain;
Content-Transfer-Encoding: BASE64

W0FsdF1bVGFiXVtUYWJdW1RhYl1bQ11bRF1bU3BhY2VdW1VdW1BdW1RhYl1bRW50ZXJdW0xdW1NdW0VudGVyXVtDXVtEXVtTcGFjZV1bLl1bLl1bL11bRW50ZXJdW0xdW1NdW0VudGVyXVtBbHRdW1RhYl1bVGFiXVtUYWJdW1RhYl1bQWx0XVtUYWJdW1RhYl0=
--WrbKitFormBoundaryXtRo8bh7ZpnTrTwd--

我的 PHP 页面返回：

HTTP/1.1 200 OK
Date: Sun, 03 Nov 2019 09:09:19 GMT
Server: Apache/2.4.29 (Ubuntu)
Content-Length: 35
Connection: close
Content-Type: text/plain; charset=utf-8


NULL
Array
(
)
File does not exist.

php页面的代码很简单：

if (!isset($_FILES['file']['error'])){
       var_dump($_FILES['file']);
       print_r($_FILES);
       throw new RuntimeException('File does not exist.');
}

最后我的 C++ 代码是：

bool sendFileToRemoteServer(std::filesystem::path file, const std::string& url,const std::string& iaddr) {
    std::string headder = "";       //Headder information
    std::string datahead = "";
    std::string content = "";

    if (!File::fastFileToString(file.string(), content)) {
        std::cout << "ERROR_FILE_OPEN" << std::endl;
        return false;
    }

    content = base64_encode(reinterpret_cast<const unsigned char*>(content.c_str()),content.length());

    datahead += "--WrbKitFormBoundaryXtRo8bh7ZpnTrTwd\r\n";
    datahead += "Content-Disposition: form-data; name=\"file\"; filename=\"" + file.filename().string() +"\"\r\n";  //Content - Disposition : form - data; name = "fileToUpload"; filename = "testMac.cpp"
    datahead += "Content-Type: text/plain;\r\n";
    datahead += "Content-Transfer-Encoding: BASE64\r\n\n";
    datahead += content;
    datahead += "\r\n--WrbKitFormBoundaryXtRo8bh7ZpnTrTwd--\r\n";

    //datahead = base64_encode(reinterpret_cast<const unsigned char*>(datahead.c_str()), datahead.length());

    //Build Headder
    headder += "Host: " + iaddr + "\r\n";                                       //Host: localhost
    headder += "Connection: close\r\n";                                         //Connection : keep - alive
    headder += "Content-Length: " + std::to_string(datahead.size()) + "\r\n";   //Content - Length : 800
    headder += "Origin: http://dzwxgames.com\r\n";
    //headder += "Content-Transfer-Encoding: base64\r\n";
    headder += "Content-Type: multipart/form-data; boundary=WrbKitFormBoundaryXtRo8bh7ZpnTrTwd\r\n";    //Content - Type : multipart / form - data; boundary = WrbKitFormBoundaryXtRo8bh7ZpnTrTwd
    headder += "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36\r\n";                                            //User - Agent: 1337
    headder += "Pragma: no-cache\r\n\r\n";                                     
    std::cout << "SENT HEAD:" << std::endl;
    std::cout << headder;
    std::cout << datahead;

    //Open internet connection
    HINTERNET hSession = InternetOpen("WINDOWS", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
    if (hSession == NULL){
        printLastError(GetLastError());
        printf("ERROR_INTERNET_OPEN");
        return false;
    }

    HINTERNET hConnect = InternetConnect(hSession, iaddr.c_str(), INTERNET_DEFAULT_HTTP_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 1);
    if (hConnect == NULL){
        printLastError(GetLastError());
        printf("ERROR_INTERNET_CONN");
        return false;
    }

    HINTERNET hRequest = HttpOpenRequest(hConnect, (const char*)"POST", _T(url.c_str()), NULL, NULL, NULL, INTERNET_FLAG_RELOAD, 1);
    if (hRequest == NULL){
        printLastError(GetLastError());
        printf("ERROR_INTERNET_REQ");
        return false;
    }

    if (!HttpSendRequestA(hRequest, headder.c_str(), headder.size(), (void*)datahead.c_str(), datahead.size())){
        printLastError(GetLastError());
        printf("ERROR_INTERNET_SEND");
        return false;
    }

    //Request Done, get responce

    DWORD dwSize = 0;
    if (!InternetQueryDataAvailable(hRequest, &dwSize, 0, 0)) {
        printLastError(GetLastError());
        printf("ERROR_InternetQueryDataAvailable");
        return false;
    }

    char* responce = new char[dwSize + 1];
    DWORD dwlpsizeread = 0;
    if (!InternetReadFile(hRequest, responce, dwSize, &dwlpsizeread)) {
        printLastError(GetLastError());
        printf("ERROR_InternetReadFile");
        return false;
    }

    printf("\nRESPONCE HEAD : \n");
    SampleCodeOne(hRequest);
    responce[dwSize] = 0;
    std::cout << responce << std::endl;

    delete[] responce;

    InternetCloseHandle(hSession);
    InternetCloseHandle(hConnect);
    InternetCloseHandle(hRequest);

    return true;
}

我错过了什么？我似乎找不到问题。

Answer 1

通过wire-shark检查后，我发现一个301错误标头发回给我，我强制升级到HTTPS。删除 HTTPS 进行测试后，这修复了错误。现在我只需要在上传时修复错误代码 3。欧格。

由于某种原因，HttpQueryInfo 没有报告错误 301。而是将数据包重新发送到新地址，但没有加密数据，它不知道如何处理它。

有趣的是，Apache 默默地丢弃了未加密的数据，因为它无法加密。日志中没有任何内容，没有提及。奇怪。

不确定是否有意。不过没关系。