网络编程练习 模拟图形 登陆认证

题目八：图形验证模拟

软件名：图形验证模拟（分服务器端和客户端两部分）

功能： 开发一个类Android的图形验证程序，以字符命令行形式来实现要求完成的功能有：

1． 登录时输入用户名；

2． 输入3*3或4*4坐标下的图形点位置，用字符方式输入；

3． 输入完成后实现在服务器端对图形进行验证；

4． 至少有三个以上的用户验证。

编程语言：自选（如VB、JAVA、C#、Delphi、VC）

 

Client:

#include<iostream>
#include<windows.h>
using namespace std;
/*  interfAcer  */
/*欢迎访问我的csdn blog  http://blog.youkuaiyun.com/nibiru_holmes*/
/*如果没反应请以管理员运行*/
#pragma comment (lib,"ws2_32")
void show() {

	cout << "*       *        *" << endl;
	cout << "                 " << endl;
	cout << "                 " << endl;
	cout << "                 " << endl;
	cout << "*       *        *" << endl;
	cout << "                 " << endl;
	cout << "                 " << endl;
	cout << "                 " << endl;
	cout << "*       *        *" << endl;

}
int main() {

	int nSize;
	char inputMsg[MAXBYTE] = { NULL };
	char RecvMsg[MAXBYTE] = { NULL };
	//char check[MAXBYTE] = {"right"};
	show();
	WSADATA wsaData;
	WSAStartup(MAKEWORD(2, 2), &wsaData);




	SOCKET ClientSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);                 //创建套接字

	sockaddr_in sockAddr;

	sockAddr.sin_family = PF_INET;
	sockAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
	sockAddr.sin_port = htons(827);

	connect(ClientSocket, (SOCKADDR*)&sockAddr, sizeof(sockAddr));
	while (TRUE) {
		cout << "Please input username:" << endl;
		memset(inputMsg, 0, MAXBYTE);
		cin >> inputMsg;
		send(ClientSocket, inputMsg, MAXBYTE, NULL);
		cout << "Please input password:" << endl;
		memset(inputMsg, 0, MAXBYTE);
		cin >> inputMsg;
		send(ClientSocket, inputMsg, MAXBYTE, NULL);
		memset(RecvMsg, 0, MAXBYTE);
		recv(ClientSocket, RecvMsg, MAXBYTE, NULL);
		if (!strcmp(RecvMsg, "Welcome!!!")) {
			cout << RecvMsg << endl;
			break;
		}
		cout << RecvMsg << endl;
	}
	closesocket(ClientSocket);
	system("pause");
	return 0;
}

Server:

#include<winsock2.h>
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include<iostream>
#include <VersionHelpers.h>
#include <string.h>
/*  interfAcer  */
/*欢迎访问我的csdn blog  http://blog.youkuaiyun.com/nibiru_holmes*/
#pragma comment (lib,"ws2_32")
using namespace std;


int check(char* user_in, char* pass_in) {

	if (!strcmp(user_in, "258") && !strcmp(pass_in, "admin3")) { return 1; }

	else if (!strcmp(user_in, "256") && !strcmp(pass_in, "admin1")) { return 1; }
	else if (!strcmp(user_in, "257") && !strcmp(pass_in, "admin2")) { return 1; }

	return 0;

}



int main() {




	int checkb;
	int nSize = sizeof(SOCKADDR);
	char szRecvMsg[MAXBYTE] = { NULL };
	char szRecvMsg2[MAXBYTE] = { NULL };
	char szSendMsg[MAXBYTE] = { NULL };




	WSADATA wsaData;
	WSAStartup(MAKEWORD(2, 2), &wsaData);
	SOCKET ClientSocket;
	SOCKET ServerSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);                                //套接字s用于监听
	sockaddr_in sockaddr;
	sockaddr.sin_family = PF_INET;
	sockaddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
	sockaddr.sin_port = htons(827);
	sockaddr_in clientAddr = { NULL };
	bind(ServerSocket, (SOCKADDR*)&sockaddr, sizeof(sockaddr));
	sockaddr_in clsockAddr = { NULL };


	listen(ServerSocket, 1);


	while (TRUE) {
		ClientSocket = accept(ServerSocket, (SOCKADDR*)&clsockAddr, &nSize);
		printf(" 接受到一个连接 From:%s：%d \r\n", inet_ntoa(clsockAddr.sin_addr), ntohs(clsockAddr.sin_port));
		cout << "error";
		while (TRUE) {
			memset(szRecvMsg, 0, MAXBYTE);
			recv(ClientSocket, szRecvMsg, MAXBYTE, NULL);
			cout << szRecvMsg << endl;
			memset(szRecvMsg2, 0, MAXBYTE);
			recv(ClientSocket, szRecvMsg2, MAXBYTE, NULL);
			cout << szRecvMsg2 << endl;
			if (check(szRecvMsg, szRecvMsg2)) {
				cout << "right!!!" << endl;
				memset(szSendMsg, 0, MAXBYTE);
				strcpy(szSendMsg, "Welcome!!!");
				send(ClientSocket, szSendMsg, MAXBYTE, NULL);
				break;

			}
			else {
				cout << "wrong!!!" << endl;
				memset(szSendMsg, 0, MAXBYTE);
				strcpy(szSendMsg, "wrong!!!");
				send(ClientSocket, szSendMsg, MAXBYTE, NULL);


			}

		}
	}
	closesocket(ServerSocket);
	closesocket(ClientSocket);
	WSACleanup();
	system("pause");
	return 0;
}