本文介绍: 本文介绍了一个基于 C++、SQLite 和 Boost 库的简单交互式数据库操作 Shell。该 Shell 允许用户通过命令行输入执行各种数据库操作，包括添加、删除主机信息，设置主机到特定主机组，以及显示主机和主机组列表。通过调用 SQLite3 库实现数据库连接和操作，以及使用 Boost 库进行字符串解析和格式化。该交互式 Shell 提供了一些基本的命令，使用户能够方便地管理主机信息和组织结构。代码结构清晰，易于理解，可根据需要扩展和定制功能。
本文介绍了一个基于 C++、SQLite 和 Boost 库的简单交互式数据库操作 Shell。该 Shell 允许用户通过命令行输入执行各种数据库操作，包括添加、删除主机信息，设置主机到特定主机组，以及显示主机和主机组列表。通过调用 SQLite3 库实现数据库连接和操作，以及使用 Boost 库进行字符串解析和格式化。该交互式 Shell 提供了一些基本的命令，使用户能够方便地管理主机信息和组织结构。代码结构清晰，易于理解，可根据需要扩展和定制功能。
数据库的基本使用方法请看《C/C++ 通过SQLiteSDK增删改查》这篇文章，针对如何使用Boost解析命令行参数请看《4.9 C++ Boost 命令行解析库》这篇文章，此处只给出实现代码，如下所示；
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <map>
#include <vector>
#include <time.h>
#include "sqlite3.h"
#include <boost/format.hpp>
#include <boost/tokenizer.hpp>
#include <boost/lexical_cast.hpp>
using namespace std;
using namespace boost;
sqlite3* open_database(std::string database_name)
{
int ref = -1;
sqlite3 *db = 0;
ref = sqlite3_open(database_name.c_str(), &db);
if (ref == SQLITE_OK)
return db;
return false;
}
bool close_database(sqlite3 *db)
{
int ref = sqlite3_close(db);
if (ref == SQLITE_OK)
return true;
return false;
}
bool exec_sql(sqlite3 *db, char *sql)
{
char *error_code = 0;
int ref = sqlite3_exec(db, sql, 0, 0, &error_code);
if (ref == SQLITE_OK)
{
return true;
}
return false;
}
// 初始化创建表结构
void Init_Database()
{
sqlite3* open_db = open_database("./database.db");
if (open_db != false)
{
std::string sql =
"create table HostDB("
"uid primary key,"
"host_address char(128) not null,"
"host_username char(128) not null,"
"host_password char(128) not null,"
"host_port char(128) not null,"
"host_group char(128) not null default 'DefaultGroup'"
");";
char run_sql[1024] = { 0 };
strcpy(run_sql, sql.c_str());
exec_sql(open_db, run_sql);
}
close_database(open_db);
}
// 增加一条主机记录
void AddHost_DB(sqlite3* open_db, std::string address, std::string username, std::string password, std::string port)
{
std::string format_string = boost::str(boost::format("insert into HostDB(host_address,host_username,host_password,host_port) values('%s','%s','%s','%s');") % address %username %password %port);
char run_sql[2048] = { 0 };
strcpy(run_sql, format_string.c_str());
bool ref = exec_sql(open_db, run_sql);
if (ref == true)
{
std::cout << "[+] 增加主机: " << address << " 完成" << std::endl;
}
}
// 删除特定主机记录
void DeleteHost_DB(sqlite3 *open_db, std::string address)
{
std::string format_string = boost::str(boost::format("delete from HostDB where host_address = '%s';") % address);
char run_sql[2048] = { 0 };
strcpy(run_sql, format_string.c_str());
bool ref = exec_sql(open_db, run_sql);
if (ref == true)
{
std::cout << "[-] 删除主机: " << address << " 完成" << std::endl;
}
}
// 将特定主机加入到特定主机组
void SetHostGroup_DB(sqlite3* open_db, std::string address, std::string group_name)
{
std::string format_string = boost::str(boost::format("update HostDB set host_group='%s' where host_address = '%s';") % group_name %address);
char run_sql[2048] = { 0 };
strcpy(run_sql, format_string.c_str());
bool ref = exec_sql(open_db, run_sql);
if (ref == true)
{
std::cout << "[+] 主机: " << address << " 已加入到: " << group_name << " 组" << std::endl;
}
}
// 输出所有主机组
void ShowHostGroup_DB(sqlite3 *open_db)
{
sqlite3_stmt *stmt = 0;
// std::string format_string = "SELECT distinct(host_group) FROM 'HostDB';";
std::string format_string = "SELECT host_group,count(*) FROM HostDB GROUP BY host_group;";
char run_sql[1024] = { 0 };
strcpy(run_sql, format_string.c_str());
int ref = sqlite3_prepare_v2(open_db, run_sql, -1, &stmt, 0);
if (ref == SQLITE_OK)
{
while (sqlite3_step(stmt) == SQLITE_ROW)
{
const unsigned char *host_group = sqlite3_column_text(stmt, 0);
int host_group_count = sqlite3_column_int(stmt, 1);
std::cout << host_group << " " << host_group_count << std::endl;
}
}
sqlite3_finalize(stmt);
}
// 输出所有主机
void ShowHost_DB(sqlite3 *open_db)
{
sqlite3_stmt *stmt = 0;
std::string format_string = "select * from HostDB;";
char run_sql[1024] = { 0 };
strcpy(run_sql, format_string.c_str());
int ref = sqlite3_prepare_v2(open_db, run_sql, -1, &stmt, 0);
if (ref == SQLITE_OK)
{
while (sqlite3_step(stmt) == SQLITE_ROW)
{
const unsigned char *host_address = sqlite3_column_text(stmt, 1);
const unsigned char *host_username = sqlite3_column_text(stmt, 2);
const unsigned char *host_paddword = sqlite3_column_text(stmt, 3);
const unsigned char *host_port = sqlite3_column_text(stmt, 4);
const unsigned char *host_group = sqlite3_column_text(stmt, 5);
std::cout << host_address << " "
<< host_username << " "
<< host_paddword << " "
<< host_port << " "
<< host_group << std::endl;
}
}
sqlite3_finalize(stmt);
}
// 输出特定主机组中的主机
void ShowGroupHostList(sqlite3 *open_db, std::string group_name)
{
sqlite3_stmt *stmt = 0;
std::string format_string = boost::str(boost::format("select * from HostDB where host_group = '%s';") % group_name);
char run_sql[2048] = { 0 };
strcpy(run_sql, format_string.c_str());
int ref = sqlite3_prepare_v2(open_db, run_sql, -1, &stmt, 0);
if (ref == SQLITE_OK)
{
std::cout << "----------------------------------------------------------" << std::endl;
std::cout << "主机组: " << group_name << std::endl;
std::cout << "----------------------------------------------------------" << std::endl;
while (sqlite3_step(stmt) == SQLITE_ROW)
{
const unsigned char *host_address = sqlite3_column_text(stmt, 1);
const unsigned char *host_username = sqlite3_column_text(stmt, 2);
const unsigned char *host_port = sqlite3_column_text(stmt, 4);
std::cout << host_address << " "
<< host_username << " "
<< host_port << std::endl;
}
}
sqlite3_finalize(stmt);
}
int main(int argc, char const *argv[])
{
sqlite3* open_db = open_database("./database.db");
Init_Database();
std::string command;
while (1)
{
std::cout << "[ LyShark Shell ] # ";
std::getline(std::cin, command);
if (command.length() == 0)
{
continue;
}
else if (command == "help")
{
std::cout << "帮助菜单" << std::endl;
}
else
{
boost::char_separator<char> sep(", --");
typedef boost::tokenizer<boost::char_separator<char>> CustonTokenizer;
CustonTokenizer tok(command, sep);
std::vector<std::string> vecSegTag;
for (CustonTokenizer::iterator beg = tok.begin(); beg != tok.end(); ++beg)
{
vecSegTag.push_back(*beg);
}
if (vecSegTag.size() == 9 && vecSegTag[0] == "AddHost")
{
if (vecSegTag[1] == "address" && vecSegTag[3] == "username" && vecSegTag[5] == "password" && vecSegTag[7] == "port")
{
std::string set_address = vecSegTag[2];
std::string set_username = vecSegTag[4];
std::string set_password = vecSegTag[6];
std::string set_port = vecSegTag[8];
AddHost_DB(open_db, set_address, set_username, set_password, set_port);
}
}
else if (vecSegTag.size() == 3 && vecSegTag[0] == "DeleteHost")
{
if (vecSegTag[1] == "address")
{
std::string set_address = vecSegTag[2];
DeleteHost_DB(open_db, set_address);
}
}
else if (vecSegTag.size() == 5 && vecSegTag[0] == "SetHostGroup")
{
if (vecSegTag[1] == "address" && vecSegTag[3] == "group")
{
std::string set_address = vecSegTag[2];
std::string set_group = vecSegTag[4];
SetHostGroup_DB(open_db, set_address, set_group);
}
}
else if (vecSegTag.size() == 1 && vecSegTag[0] == "ShowHost")
{
std::cout << "-----------------------------------------------------------------------------" << std::endl;
std::cout << "IP地址 " << "用户名 " << "密码 " << "端口号 " << "默认组 " << std::endl;
std::cout << "-----------------------------------------------------------------------------" << std::endl;
ShowHost_DB(open_db);
}
else if (vecSegTag.size() == 1 && vecSegTag[0] == "ShowHostGroup")
{
std::cout << "-----------------------------------------------------------------------------" << std::endl;
std::cout << "主机组名 " << "主机数量 " << std::endl;
std::cout << "-----------------------------------------------------------------------------" << std::endl;
ShowHostGroup_DB(open_db);
}
else if (vecSegTag.size() == 3 && vecSegTag[0] == "ShowGroupHostList")
{
if (vecSegTag[1] == "group")
{
std::string set_group = vecSegTag[2];
ShowGroupHostList(open_db, set_group);
}
}
}
}
close_database(open_db);
return 0;
}
添加主机记录: AddHost –address 192.168.1.1 —username root –password 1233 –port 22
删除主机记录: DeleteHost –address 192.168.1.1
将特定主机设置到主机组: SetHostGroup –address 192.168.1.1 –group WebServer
输出所有主机列表: ShowHost
输出所有主机组: ShowHostGroup
输出特定主机组中的主机: ShowGroupHostList –group DefaultGroup
原文地址:https://blog.csdn.net/lyshark_csdn/article/details/134624741
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