HTTP代理源代码

最新推荐文章于 2024-04-18 08:18:20 发布

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最新推荐文章于 2024-04-18 08:18:20 发布 · 3.6k 阅读

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CC 4.0 BY-SA版权

文章标签：

#socket #winapi #struct #服务器 #fp #null

本文介绍了使用WinAPI和套接字编程实现一个简单的HTTP代理服务器的过程。服务器接收客户端请求，解析HTTP头信息，连接目标服务器并转发数据，支持GET、HEAD和POST请求。代码中包含接收、处理、发送数据的函数以及错误处理机制。

#pragma hdrstop

//---------------------------------------------------------------------------

#include <windows.h>
#include <stdio.h>

#define MAX_TOMEOUT 10000
#define MAX_SOCKET 5000
#define MAX_CHARBUFF 20480
#define MAX_HOSTNAME 256
#define DEFPORT 80
#define LISPORT 8471
#define DEFLISNUM 500
#define HEADLEN 7

DWORD WINAPI ProClientThread(LPVOID lpParam);
SOCKET SendHeadData(SOCKET ClientSocket,char *Msg,char *HMsg,int Datalen);
SOCKET GetServerAddr(char *Msg,int datalen);
//void ChangeSysInfo(char *Msg);
char * Get3Chars(char * Str,int *len);
void RecvSendData(SOCKET Rsck,SOCKET Ssck,char *SendBuf);
DWORD WINAPI RSThread(LPVOID lpParam);

char ErrorSendMsg[]="Http/1.1 403 Forbidden/r/n/r/n<body><h1>403 Forbidden</h1></body>";

struct sendofsck
{
SOCKET Rsck;
SOCKET Ssck;
char *Buff;
};

int main(int argc, char* argv[])
{
WSADATA WSAData;
if(WSAStartup(MAKEWORD(2,2), &WSAData))
return 1;

SOCKET ProServer= socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(ProServer == SOCKET_ERROR)
return 1;

struct sockaddr_in ServerStk={0}, ClientCont={0};

ServerStk.sin_family = AF_INET;//inter模式
ServerStk.sin_port = htons(LISPORT);//监听端口
ServerStk.sin_addr.S_un.S_addr = INADDR_ANY;

if(bind(ProServer, (LPSOCKADDR) & ServerStk, sizeof(ServerStk)) == SOCKET_ERROR)
return 1;

if(listen(ProServer, DEFLISNUM) == SOCKET_ERROR)
return 1;

int ServerStkSize = sizeof(ClientCont);

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