application/zip winsock C++

Question

GET URLリクエストを作成しようとしていますが、応答のコンテンツタイプは「application/zip」ですが、コンテンツを適切な/読み込み可能なzipファイルに出力するのに問題があります。 、あなたが言うことができるように、私は2つの異なるファイルに書き出すしようとしていないよ、どちらも働いている、両方のzipファイルとして判読できないです：

bool ionMyPlugin::downloadRact(int goodsId) { 
    goodsId = 36028; 
    WSADATA wsaData; 
    SOCKET Socket; 
    SOCKADDR_IN SockAddr; 
    int lineCount = 0; 
    int rowCount = 0; 
    struct hostent *host; 
    locale local; 
    char buffer[10000]; 
    int i = 0; 
    int nDataLength; 
    string website_HTML; 

    // website url 
    string url = "eihome.eihoo.com";///api ? mod = rayvr&app = apigoods&act = index&store_id = 34837 & secret_key = 8d410f7007b47e76c227cfa8c282c5f5&add_time = 1474877868 & company = eihome%E6%B5 % 8B % E8%AF % 95 % E4%BC % 81 % E4%B8 % 9A & sign = fd53cce56c4eb88e356d58f19c337e79"; 
    string url2 = "?mod=rayvr&app=apigoods&act=download&store_id=34837&goods_id=36010&secret_key=8d410f7007b47e76c227cfa8c282c5f5&add_time=1474877868&company=eihome%E6%B5%8B%E8%AF%95%E4%BC%81%E4%B8%9A&sign=fd53cce56c4eb88e356d58f19c337e79";// +goodsId; 

    //HTTP GET 
    string get_http = "GET /" + url2 + " HTTP/1.1\r\nHost: " + url + "\r\nConnection: close\r\n\r\n"; 

    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0){ 
     cout << "WSAStartup failed.\n"; 
     system("pause"); 
    } 

    Socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); 
    host = gethostbyname(url.c_str()); 

    SockAddr.sin_port = htons(80); 
    SockAddr.sin_family = AF_INET; 
    SockAddr.sin_addr.s_addr = *((unsigned long*)host->h_addr); 

    if (connect(Socket, (SOCKADDR*)(&SockAddr), sizeof(SockAddr)) != 0){ 
     cout << "Could not connect"; 
     system("pause"); 
    } 

    // send GET/HTTP 
    send(Socket, get_http.c_str(), strlen(get_http.c_str()), 0); 
    ofstream myfile; 
    fstream myfile2("myfile2.zip", ios::out | ios::binary); 
    myfile.open("example.zip", std::ios_base::binary); 
    // recieve html 
    int countWS = 0; 
    while ((nDataLength = recv(Socket, buffer, 10000, 0)) > 0){ 
     int i = 0; 
     while (buffer[i]){//buffer[i] >= 32 || buffer[i] == '\n' || buffer[i] == '\r'){ 
      myfile << buffer[i]; 
      myfile2.write(reinterpret_cast<char *> (&buffer[i]), sizeof(buffer[i])); 
      website_HTML += buffer[i];// >> 8); 
      //website_HTML += ((buffer[i] << 8) >> 8); 

      i += 1; 
      if (i >= nDataLength) 
       break; 
     } 
    } 

    closesocket(Socket); 
    WSACleanup(); 
    return false; 
} 

Answer 1

あなたはこの例を確認することがあります。

#include <string> 
#include <stdio.h> 
#include <winsock2.h> 
#define BUFFER_LEN (4096) 
using std::string; 
int main(int argc, char **argv) 
{ 
    HANDLE fhand; 
    string request; 
    int sendret; 
    int iRecv; 
    int iResponseLength=0; 
    int offset; 
    DWORD dw; 
    string res2; 
    char recvBuffer[BUFFER_LEN]={0}; 
    string response; 
    const char lb[]="\r\n\r\n"; 
    const char http[]="http\x3a//"; 
    const char snsn[]="%s\n"; 
    bool error1=false; 
    bool error2=false; 
    bool error3=false; 
    int len3=strlen(argv[3]); 
    printf(snsn,"\n-=[ httpget v1.0 by Avery Tarasov"); 
    printf(snsn,"-=[ Email: c0ldshadow@deeptide.com"); 
    printf(snsn,"-=[ Web: www.DeepTide.com"); 
    printf(snsn,"-=[ Dedicated to my fiance, Ostine!\n"); 
    printf(snsn,"Example usage: httpget theserver.com /somefolder/somefile.zip C:\\savehere.zip"); 
    if(argc!=4) 
    { 
     printf(snsn,"\nInvalid usage"); 
     goto cleanup; 
    } 
    WSADATA wsaData; 
    if(WSAStartup(MAKEWORD(2,2),&wsaData)!=0) 
    { 
     printf(snsn,"\nError initializing Winsock 2.2"); 
     goto cleanup; 
    } 
    error1=true; 
    if(LOBYTE(wsaData.wVersion)!=2||HIBYTE(wsaData.wVersion)!=2) 
    { 
     printf(snsn,"\nWinsock 2.2 not available"); 
     goto cleanup; 
    } 
    printf(snsn,"\nWinsock 2.2 initialized via wsa2_32.dll"); 
    struct hostent *h; 
    struct sockaddr_in sa; 
    SOCKET server1; 
    h=gethostbyname(argv[1]); 
    if(h==0) 
    { 
     printf(snsn,"\ngethostbyname() failed"); 
     goto cleanup; 
    } 
    printf("%s","\nHost lookup succeeded for "); 
    printf(snsn,argv[1]); 
    memcpy((char *)&sa.sin_addr,(char *)h->h_addr,sizeof(sa.sin_addr)); 
    sa.sin_family=h->h_addrtype; 
    sa.sin_port=htons(80); 
    server1=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); 
    if(server1==INVALID_SOCKET) 
    { 
     printf(snsn,"\nsocket() failed"); 
     goto cleanup; 
    } 
    error1=false; 
    error2=true; 
    if(connect(server1,(struct sockaddr *)&sa,sizeof(sa))<0) 
    { 
     printf(snsn,"\nconnect() failed"); 
     goto cleanup; 
    } 
    printf("%s","\nNow connected to "); 
    printf("%s",argv[1]); 
    printf(snsn," via port 80"); 
    request+="GET "; 
    request+=argv[2]; 
    request+=" HTTP/1.0"; 
    request+=&lb[2]; 
    request+="Host: "; 
    request+=argv[1]; 
    request+=lb; 
    printf(snsn,"\nHTTP request constructed successfully:\n"); 
    printf(snsn,request.c_str()); 
    sendret=send(server1,request.c_str(),request.length(),0); 
    if(sendret==-1) 
    { 
     printf(snsn,"send() failed"); 
     goto cleanup; 
    } 
    printf(snsn,"Successfully sent HTTP request to the server"); 
    printf(snsn,"\nWaiting for download to complete"); 
    fhand=CreateFile(argv[3],GENERIC_WRITE,FILE_SHARE_READ,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0); 
    if(fhand==INVALID_HANDLE_VALUE) 
    { 
     printf(snsn,"\nCreateFile() failed"); 
     goto cleanup; 
    } 
    error2=false; 
    error3=true; 
    while((iRecv=recv(server1,recvBuffer,BUFFER_LEN-1,0))>0) 
    { 
     /* 
     char hex[5]; 
     string packet; 
     packet.reserve(5*iRecv); 
     printf(snsn,"\n"); 
     printf("%s","Receiving "); 
     printf("%d",iRecv); 
     printf(snsn," byte packet:\n"); 
     for(int i=0;i<iRecv;++i) 
     { 
      wsprintf(hex,"%02x",(unsigned char)recvBuffer[i]); 
      packet.append(hex); 
      printf("%s ",hex); 
     } 
     */ 
     response.append(recvBuffer,iRecv); 
     iResponseLength+=iRecv; 
     ZeroMemory(recvBuffer,BUFFER_LEN); 
    } 
    if(iRecv==SOCKET_ERROR) 
    { 
     printf(snsn,"\n\nrecv() failed"); 
    } 
    offset=response.find(lb)+4; 
    if(offset!=string::npos) 
    { 
     printf("%s","\n\nFile starts at offset "); 
     printf("%d\n",offset); 
     printf(snsn,"\nInitial response from server:\n"); 
     for(int j=0;j<offset;++j) 
     { 
      printf("%c",response[j]); 
     } 
     res2.assign(response,offset,response.size()); 
     if(WriteFile(fhand,res2.data(),res2.size(),&dw,0)==0) 
     { 
      printf(snsn,"\nWriteFile() failed"); 
      goto cleanup; 
     } 
     else 
     { 
      printf("%s","\nFile successfully downloaded and saved to "); 
      printf(snsn,argv[3]); 
     } 
    } 
    cleanup: 
    if(error1) 
    { 
     WSACleanup(); 
    } 
    if(error2) 
    { 
     WSACleanup(); 
     closesocket(server1); 
    } 
    if(error3) 
    { 
     WSACleanup(); 
     closesocket(server1); 
     CloseHandle(fhand); 
    } 
    return 0; 
}