socket提交http表单[VC]

阳光穿透心脏的1/2处 2021-12-15 13:23 261阅读 0赞

/***************code.h********************/
    
    #ifndef _CODE_H_
    #define _CODE_H_
    
    #include <string>
    using namespace std;
    
    class CCode
    {
    public:
    string Encode(const string & str);
    string Decode(const string & str);
    };
    
    #endif
    
    /*****************code.cpp*************************/
    
    #include “code.h”
    
    string CCode::Encode(const string & str)
    {
    string ret=”";
    char buf[20];
    int i=0;
    while(i<str.length())
    {
    if(str[i] & 0×80)
    {
    sprintf(buf,”%%%1X%1X”,(unsigned char)str[i],(unsigned char)str[i+1]);
    ++i;
    ret+=buf;
    }
    else
    ret+=str[i];
    ++i;
    }
    return ret;
    }
    
    string CCode::Decode(const string & str)
    {
    string ret=”";
    string cur,all=str;
    while(all.length()>0)
    {
    int pos=all.find(“%”);
    if(pos!=0)
    ret+=all.substr(0,pos);
    cur=all.substr(pos+1,2);
    all=all.substr(pos+3);
    char ch;
    sscanf(cur.c_str(),”%x”,&ch);
    ret+=(char)ch;
    }
    return ret;
    }
    
    /*************************http.h***************************/
    
    #ifndef _HTTP_H_
    #define _HTTP_H_
    
    #include <winsock2.h>
    #include <iostream>
    #include <string>
    using namespace std;
    
    #pragma comment(lib,”ws2_32.lib”)
    
    #define BUFFER_SIZE 11400
    
    class CHttp
    {
    public:
    CHttp();
    virtual ~CHttp();
    private:
    SOCKET m_SOCKET;
    WSADATA m_WSADATA;
    HOSTENT * m_HOSTENT;
    SOCKADDR_IN m_SOCKADDR_IN;
    
    char buf[BUFFER_SIZE];
    int len;
    private:
    bool CreateSocket();
    void ReleaseSocket();
    public:
    bool Connect(const string & httpAddr,const int port=80);
    int SendData(const char * str);
    string RecvData();
    };
    
    #endif
    
    /************************http.cpp******************************/
    
    #include “http.h”
    
    void msg(char * str)
    {
    #ifdef _DEBUG
    cout<<str<<endl;
    #endif
    }
    
    CHttp::CHttp()
    {
    }
    
    CHttp::~CHttp()
    {
    }
    
    bool CHttp::CreateSocket()
    {
    if(WSAStartup(MAKEWORD(2,2),&m_WSADATA)==SOCKET_ERROR)
    {
    msg(“wsastartup”);
    ReleaseSocket();
    return false;
    }
    if((m_SOCKET=socket(AF_INET,SOCK_STREAM,0))==SOCKET_ERROR)
    {
    msg(“socket”);
    ReleaseSocket();
    return false;
    }
    return true;
    }
    
    void CHttp::ReleaseSocket()
    {
    shutdown(m_SOCKET,SD_BOTH);
    closesocket(m_SOCKET);
    WSACleanup();
    }
    
    bool CHttp::Connect(const string & httpAddr,const int port)
    {
    if(! CreateSocket())
    return false;
    if((m_HOSTENT=gethostbyname(httpAddr.c_str()))==NULL)
    {
    msg(“gethostbyname”);
    ReleaseSocket();
    return false;
    }
    if(m_HOSTENT->h_addr_list[0]==NULL)
    {
    msg(“h_addr_list”);
    ReleaseSocket();
    return false;
    }
    memset(&m_SOCKADDR_IN,0,sizeof(m_SOCKADDR_IN));
    m_SOCKADDR_IN.sin_family=AF_INET;
    m_SOCKADDR_IN.sin_port=htons(port);
    m_SOCKADDR_IN.sin_addr.S_un.S_addr=*(ULONG *)m_HOSTENT->h_addr_list[0];
    
    int timeOut=5000;
    if(::setsockopt(m_SOCKET,SOL_SOCKET,SO_SNDTIMEO,(char *)&timeOut,sizeof(timeOut))==SOCKET_ERROR)
    return false;
    if(connect(m_SOCKET,(sockaddr *)&m_SOCKADDR_IN,sizeof(m_SOCKADDR_IN))==SOCKET_ERROR)
    {
    msg(“connect”);
    ReleaseSocket();
    return false;
    }
    return true;
    }
    
    string CHttp::RecvData()
    {
    try
    {
    len=recv(m_SOCKET,buf,sizeof(buf),0);
    if(len==SOCKET_ERROR)
    return “”;
    buf[len]=0;
    return string(buf);
    }
    catch(…)
    {
    return “”;
    }
    }
    
    int CHttp::SendData(const char * str)
    {
    return send(m_SOCKET,str,strlen(str),0);
    }
    
    /**************************main.cpp**************************/
    
    #pragma warning (disable:4786)
    #include <iostream>
    #include <sstream>
    #include <iterator>
    #include <vector>
    #include “http.h”
    #include “code.h”
    using namespace std;
    
    string StoreCookies(const string & strRecv) //从登陆接收的数据中分离出Cookie信息合并成发送的格式
    {
    string sCookies;
    istringstream ssin(strRecv);
    string line;
    while(! getline(ssin,line).eof())
    {
    if(line.find(“cookie”)!=string::npos)
    {
    int pos[2];
    if((pos[0]=line.find(“\’”,0))!=string::npos && (pos[1]=line.find(“\’”,pos[0]+1))!=string::npos)
    {
    if(sCookies.length()>0)
    sCookies+=”;”;
    sCookies+=line.substr(pos[0]+1,pos[1]-pos[0]-1);
    }
    }
    }
    return sCookies;
    }
    
    int main()
    {
    CHttp http;
    http.Connect(“bbs.jlu.edu.cn”);
    
    /******************登陆BBS并提取Cookie*********************/
    string login=”POST /cgi-bin/bbslogin HTTP/1.1\r\n”;
    login+=”Content-Type: application/x-www-form-urlencoded\r\n”;
    login+=”Host: bbs.jlu.edu.cn\r\n”;
    login+=”Content-Length: 27\r\n\r\n”; //HTTP头结束,两个”\r\n”
    login+=”id=luosiyong&pw=’yourpwd’\r\n\r\n”; //提交表单内容 这里pw经过了处理
    
    http.SendData(login.c_str());
    string sRecv=http.RecvData();
    
    cout<<”login response >>>>>>\n”<<sRecv<<endl;
    string sCookie=StoreCookies(sRecv); //从登陆的信息提取cookie用于后面验证
    
    /*******************发帖*************************************/
    string post=”POST /cgi-bin/bbssnd?board=Arctic&u=0&r=0 HTTP/1.1\r\n”;
    post+=”Content-Type: application/x-www-form-urlencoded\r\n”;
    post+=”Host: bbs.jlu.edu.cn\r\n”;
    post+=”Content-Length: 50\r\n”;
    post+=”Cookie: \r\n\r\n”;
    post+=”title=测试&signature=1&text=文本!@#$^*()_+|[]‘内容\r\n”; //注意不能包含%和&符号,它们在HTTP中用于转义和变量连接
    
    post.insert(post.find(“Cookie: “)+strlen(“Cookie: “),sCookie); //在http头中加入Cookie信息
    
    http.SendData(post.c_str());
    cout<<http.RecvData()<<endl;
    
    /*******************注销登陆**********************************/
    string logout=”GET /cgi-bin/bbslogout HTTP/1.1\r\n”;
    logout+=”Host: bbs.jlu.edu.cn\r\n”;
    logout+=”Cookie: \r\n\r\n”;
    
    logout.insert(logout.find(“Cookie: “)+strlen(“Cookie: “),sCookie);
    
    http.SendData(logout.c_str());
    cout<<http.RecvData()<<endl;
    
    return 0;
    }

转载于:https://www.cnblogs.com/rogee/archive/2011/05/24/2055897.html