通过C++套接字将二进制文件发布到 PHP

我正在尝试通过套接字发送二进制文件。我捕获了 Curl 标头以尝试对其进行逆向工程。我的应用程序和 curl 请求对我来说似乎相同，但 PHP 脚本无法接收文件。

这是我的代码：

#include <iostream>
#include <string>
#include <fstream>
#include <winsock.h>
#pragma comment(lib, "wsock32.lib")
/***************** PROTOTYPE *******************/
int SockRecv(SOCKET sock);
int SockSend(SOCKET sock, std::string request);
std::streamoff FileSize(std::string filename);
int HTTP_POST(SOCKET sock, std::string host, std::string filename);
int SendFile(SOCKET sock, std::string filename);
/***************** PROTOTYPE *******************/
int main(){
        /* Standard networking stuff */
        u_short Port = 8080;
        const char* IP = "192.168.1.140";
        std::string host(IP);
        host += ":" + std::to_string(Port);
        WSAData wsa;
        WSAStartup(MAKEWORD(1, 1), &wsa);
        SOCKET sock;
        sockaddr_in RemoteSin;
        RemoteSin.sin_family = AF_INET;
        RemoteSin.sin_port = htons(Port);
        if ((RemoteSin.sin_addr.S_un.S_addr = inet_addr(IP)) == INADDR_NONE){
                std::cout << "Error setting IP: " << GetLastError() << std::endl;
                return 1;
        }
        if ((sock = socket(PF_INET, SOCK_STREAM, 0)) == SOCKET_ERROR){
                std::cout << "Error creating socket" << std::endl;
                return 1;
        }
        if (connect(sock, (sockaddr *)&RemoteSin, sizeof(sockaddr_in)) == SOCKET_ERROR){
                std::cout << "Error connecting to remote host: " << GetLastError() << std::endl;
                return 1;
        }
        /* Sending the binary file */
        HTTP_POST(sock, host, "test.exe");
        /* Closing and cleaning connection */
        closesocket(sock);
        WSACleanup();
        getchar();
}
std::streamoff FileSize(std::string filename){
        std::ifstream file(filename, std::ios::binary | std::ios::ate);
        return file.tellg();
}
int HTTP_POST(SOCKET sock, std::string host, std::string filename){
        std::string header;
        std::streamoff lenght = FileSize(filename);
        /* Pre-building body to get the size  */
        std::string strSize = "------------------------448eacc7eda1d5ef45rn";
        strSize += "Content-Disposition: form-data; name="uploadedfile"; ";
        strSize += "filename="" + filename + ""rn";
        strSize += "Content-Type: application/octet-streamrnrn";
        strSize += "rn------------------------448eacc7eda1d5ef45--rn";
        /* Calculating Content-Lenght */
        lenght = lenght + strSize.size();
        /* Building header */
        header = "POST /upload.php HTTP/1.1rn";
        header += "User-Agent: Botrn";
        header += "Host: " + host + "rn";
        header += "Accept: */*rn";
        header += "Content-Length: " + std::to_string(lenght) + "rn";
        //      header += "Expect: 100-continuern"; // Curl send this but I think this is not required and might only complicate things      
        header += "Content-Type: multipart/form-data-stream; ";
        header += "boundary=------------------------448eacc7eda1d5ef45rnrn";
        /* Appending first part of body to header */
        header += "------------------------448eacc7eda1d5ef45rn";
        header += "Content-Disposition: form-data; name="uploadedfile"; ";
        header += "filename="" + filename + ""rn";
        header += "Content-Type: application/octet-streamrnrn";
        /* Sending header with first part of body */
        if (!SockSend(sock, header)) {
                /* Sending binary file */
                if (!SendFile(sock, filename)){
                        /* Closing body by sending end of boundary string */
                        std::string header_end = "rn------------------------448eacc7eda1d5ef45--rn";
                        if (!SockSend(sock, header_end)){
                                /* Printing server response to stdout */
                                if (!SockRecv(sock)){
                                        return 0;
                                }
                                return 1;
                        }
                }
        }
        return 1;
}
int SockSend(SOCKET sock, std::string request){
        if (send(sock, request.c_str(), strlen(request.c_str()), 0) == SOCKET_ERROR){
                return 1;
        }
        return 0;
}
int SockRecv(SOCKET sock){
        char reply[1024];
        ZeroMemory(reply, 1024);
        if (recv(sock, reply, 1024, 0) == SOCKET_ERROR){
                return 1;
        }
        std::cout << reply << std::endl;
        return 0;
}
int SendFile(SOCKET sock, std::string filename){
        char buf[1040];
        std::ifstream infile;
        infile.open(filename.c_str(), std::ios::in | std::ios::binary);
        if (infile.fail() == 1)
        {
                infile.close();
                return 1;
        }
        while (!infile.eof())
        {
                infile.read(buf, sizeof(buf));
                if (send(sock, buf, infile.gcount(), 0) == SOCKET_ERROR){
                        return 1;
                }
        }
        infile.close();
        return 0;
}

这是接收 PHP 脚本：

<?php
// Where the file is going to be placed
$target_path = "upload/";
/* Add the original filename to our target path.  
Result is "uploads/filename.extension" */
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
    echo "The file ".  basename( $_FILES['uploadedfile']['name']).
    " has been uploaded";
} else{
    echo "There was an error uploading the file, please try again!";
}
?>

使用此 curl 请求：

curl --form "uploadedfile=@test.exe" http://192.168.1.140:8080/upload.php

这是成功上传的样子：

Request:
POST /upload.php HTTP/1.1
User-Agent: curl/7.35.0
Host: 192.168.1.140:8080
Accept: */*
Content-Length: 69328
Expect: 100-continue
Content-Type: multipart/form-data; boundary=------------------------bfaa9a39adfbb3c1
--------------------------bfaa9a39adfbb3c1
Content-Disposition: form-data; name="uploadedfile"; filename="test.exe"
Content-Type: application/octet-stream
/* Binary data */
--------------------------bfaa9a39adfbb3c1--
Response:
HTTP/1.1 100 Continue
HTTP/1.1 200 OK
Server: nginx/1.2.6 (Ubuntu)
Date: Tue, 08 Apr 2014 19:45:38 GMT
Content-Type: text/html
Connection: keep-alive
X-Powered-By: PHP/5.4.9-4ubuntu2.4
Content-Length: 35
The file test.exe has been uploaded 

然后使用我的C++应用程序，这是上传失败的样子：

Request:
POST /upload.php HTTP/1.1
User-Agent: Bot
Host: 192.168.1.140:8080
Accept: */*
Content-Length: 69328
Content-Type: multipart/form-data-stream; boundary=------------------------448eacc7eda1d5ef45
------------------------448eacc7eda1d5ef45
Content-Disposition: form-data; name="uploadedfile"; filename="test.exe"
Content-Type: application/octet-stream
/* Binary data */
------------------------448eacc7eda1d5ef45--
Response:
HTTP/1.1 200 OK
Server: nginx/1.2.6 (Ubuntu)
Date: Tue, 08 Apr 2014 19:45:49 GMT
Content-Type: text/html
Connection: keep-alive
X-Powered-By: PHP/5.4.9-4ubuntu2.4
Content-Length: 56
There was an error uploading the file, please try again!

我省略了"期望：100-继续"，因为我认为这是可选的。否则，这两个请求对我来说看起来完全相同。三重检查了我能做的一切，但现在我被困在那里。

感谢您的任何输入！