Winsock 程序收到 400 错误请求，您的浏览器发送了此服务器无法理解的请求
Winsock program getting 400 bad request, your browser sent a request this server couldn't understand
我使用winsock2用c++编写了一个程序，并连接到GoDaddy。但是我得到了这个
HTTP/1.1 400 Bad Request
Date: Mon, 17 Aug 2015 01:53:38 GMT
Server: Apache
Content-Length: 300
Connection: close
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>400 Bad Request</title>
</head><body>
<h1>Bad Request</h1>
<p>Your browser sent a request that this server could not understand.<br />
</p>
<hr>
<address>Apache Server at default.secureserver.net Port 80</address>
</body></html>
下面是我的代码:
#include <windows.h>
#include <winsock2.h>
#include <conio.h>
#include <stdio.h>
#include <iostream>
using namespace std;
#define SCK_VERSION2 0x0202
#define DEFAULT_BUFLEN 2000
#define DEFAULT_PORT 27015
namespace Globals{
extern string input = "";
}
using namespace Globals;
int whole() {
//USERNAME();
//PASSWORD();
//----------------------
// Declare and initialize variables.
WSADATA wsaData;
int iResult;
SOCKET ConnectSocket = INVALID_SOCKET;
struct sockaddr_in clientService;
char name[500] = "";
char ipADDRESS[500] = "";
char sPORT[500] = "";
sockaddr_in sName;
int sNameSize = sizeof(sName);
char *sendbuf = "GET /offers/online-business.aspx HTTP/1.1 nHost: I took this out, not giving myself away nUser-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729) nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 nAccept-Language: en-us,en;q=0.5 nAccept-Encoding: gzip,deflate nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 nKeep-Alive: 300 nConnection: keep-alive nCookie: nPragma: no-cache nCache-Control: no-cache";
char recvbuf[DEFAULT_BUFLEN];
int recvbuflen = DEFAULT_BUFLEN; //208.109.181.178
int WSAERROR = WSAGetLastError();
//system("color 04");
//----------------------
// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
if (iResult != NO_ERROR) {
printf("WSAStartup failed: %dn", iResult);
return 1;
}
//----------------------
// Create a SOCKET for connecting to server
ConnectSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (ConnectSocket == INVALID_SOCKET) {
printf("Error at socket(): %in", WSAGetLastError() );
WSACleanup();
return 1;
}
//----------------------
// The sockaddr_in structure specifies the address family,
// IP address, and port of the server to be connected to.
printf("IP ADDRESS: n");
cin >> ipADDRESS;
printf("PORT: n");
cin >> sPORT;
u_short PORT = strtoul(sPORT, NULL, 0);
clientService.sin_family = AF_INET;
clientService.sin_addr.s_addr = inet_addr(ipADDRESS); //74.125.196.191
clientService.sin_port = htons(PORT);
//----------------------
// Connect to server.
iResult = connect( ConnectSocket, (SOCKADDR*) &clientService, sizeof(clientService) );
if ( iResult == SOCKET_ERROR) {
closesocket (ConnectSocket);
printf("Unable to connect to server: %in", WSAGetLastError());
WSACleanup();
return 1;
}
//----------------------
//Get local host name
iResult = gethostname(name, sizeof(name));
if (iResult == NO_ERROR) {
printf("Host Name: %sn", name);
}
else if (iResult == SOCKET_ERROR) {
printf("Could not resolve host name: %i", WSAGetLastError());
}
//------------------------
//Get peer name
iResult = getpeername(ConnectSocket, (struct sockaddr*)&sName, &sNameSize);
if (iResult == NO_ERROR)
printf("Peer Name: %sn", inet_ntoa(sName.sin_addr));
else if (iResult == SOCKET_ERROR)
printf("Could not get peer name: %in", WSAGetLastError());
//-------------------------
// Send an initial buffer
iResult = send( ConnectSocket, sendbuf, (int)strlen(sendbuf), 0 );
if (iResult == SOCKET_ERROR) {
printf("send failed: %dn", WSAGetLastError());
closesocket(ConnectSocket);
WSACleanup();
return 1;
}
else
printf("Bytes Sent: %in", iResult);
//-----------------------------
// shutdown the connection since no more data will be sent
iResult = shutdown(ConnectSocket, SD_SEND);
if (iResult == SOCKET_ERROR) {
printf("shutdown failed: %dn", WSAGetLastError());
closesocket(ConnectSocket);
WSACleanup();
return 1;
}
// Receive until the peer closes the connection
do {
iResult = recv(ConnectSocket, recvbuf, recvbuflen, 0);
if ( iResult > 0 ) {
printf("Bytes received: %dn", iResult); //printf("Bytes received: %dn", iResult);
printf("From server: %sn", recvbuf);
}
else if ( iResult == 0 )
printf("Connection closedn");
else if (WSAERROR == WSAETIMEDOUT)
printf("recv failed: WSAETIMEDOUTn");
printf("Do you want to disconnect? (Y/N) n");
cin >> input;
if ( input == "Y"||"y" ) {
break;
}
else if ( input == "N"||"n" ) {
break;
}
} while( iResult > 0 );
// cleanup
closesocket(ConnectSocket);
WSACleanup();
system("PAUSE");
return 0;
}
int main() {
do {
whole();
} while( input != "N"||"n" );
}
sendbuf包含GET请求。我在网上找到的例子基本上显示它在寻找一个特定的目录。它是否更像是你要求一个目录和一个特定的html文件?如果有人能告诉我参数或如何正确地进行GET请求，将不胜感激。
编辑:有没有人知道这可能与rn有关?
需要注意的一点是HTTP标头，它的格式似乎不正确。
每行必须以rn结尾，整个报头块必须以rnrn结尾。
另外，Cookie标头没有值-不确定这是否会导致问题。
尝试这样做(在每个头后添加r， rnrn终止块，删除Cookie:
char *sendbuf = "GET /offers/online-business.aspx HTTP/1.1rn"
"Host: I took this out, not giving myself awayrn"
"User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)rn"
"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8rn"
"Accept-Language: en-us,en;q=0.5rn"
"Accept-Encoding: gzip,deflatern"
"Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7rn"
"Keep-Alive: 300rn"
"Connection: keep-alivern"
"Pragma: no-cachern"
"Cache-Control: no-cachernrn";
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