#coding: utf-8
# +-------------------------------------------------------------------
# | 宝塔Linux面板 x3
# +-------------------------------------------------------------------
# | Copyright (c) 2015-2016 宝塔软件(http:#bt.cn) All rights reserved.
# +-------------------------------------------------------------------
# | Author: 黄文良 <287962566@qq.com>
# +-------------------------------------------------------------------
import sys,os,web,public,re,firewalld,time
reload(sys)
sys.setdefaultencoding('utf-8')
class firewalls:
    __isFirewalld = False
    __isUfw = False
    __Obj = None
    
    def __init__(self):
        if os.path.exists('/usr/sbin/firewalld'): self.__isFirewalld = True
        if os.path.exists('/usr/sbin/ufw'): self.__isUfw = True
        if self.__isFirewalld:
            try:
                self.__Obj = firewalld.firewalld();
                self.GetList();
            except:
                pass
        
    
    #获取服务端列表
    def GetList(self):
        try:
            data = {}
            data['ports'] = self.__Obj.GetAcceptPortList();
            addtime = time.strftime('%Y-%m-%d %X',time.localtime())
            for i in range(len(data['ports'])):
                tmp = self.CheckDbExists(data['ports'][i]['port']);
                if not tmp: public.M('firewall').add('port,ps,addtime',(data['ports'][i]['port'],'',addtime))
                          
            data['iplist'] = self.__Obj.GetDropAddressList();
            for i in range(len(data['iplist'])):
                try:
                    tmp = self.CheckDbExists(data['iplist'][i]['address']);
                    if not tmp: public.M('firewall').add('port,ps,addtime',(data['iplist'][i]['address'],'',addtime))
                except:
                    pass
        except:
            pass
    
    #检查数据库是否存在
    def CheckDbExists(self,port):
        data = public.M('firewall').field('id,port,ps,addtime').select();
        for dt in data:
            if dt['port'] == port: return dt;
        return False;
        
    #重载防火墙配置
    def FirewallReload(self):
        if self.__isUfw:
            public.ExecShell('/usr/sbin/ufw reload')
            return;
        if self.__isFirewalld:
            public.ExecShell('firewall-cmd --reload')
        else:
            public.ExecShell('/etc/init.d/iptables save')
            public.ExecShell('/etc/init.d/iptables restart')
            
        
    #添加屏蔽IP
    def AddDropAddress(self,get):
        import time
        import re
        rep = "^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(\/\d{1,2})?$"
        if not re.search(rep,get.port): return public.returnMsg(False,'FIREWALL_IP_FORMAT');
        address = get.port
        if public.M('firewall').where("port=?",(address,)).count() > 0: return public.returnMsg(False,'FIREWALL_IP_EXISTS')
        if self.__isUfw:
            public.ExecShell('ufw deny from ' + address + ' to any');
        else:
            if self.__isFirewalld:
                #self.__Obj.AddDropAddress(address)
                public.ExecShell('firewall-cmd --permanent --add-rich-rule=\'rule family=ipv4 source address="'+ address +'" drop\'')
            else:
                public.ExecShell('iptables -I INPUT -s '+address+' -j DROP')
        
        public.WriteLog("TYPE_FIREWALL", 'FIREWALL_DROP_IP',(address,))
        addtime = time.strftime('%Y-%m-%d %X',time.localtime())
        public.M('firewall').add('port,ps,addtime',(address,get.ps,addtime))
        self.FirewallReload()
        return public.returnMsg(True,'ADD_SUCCESS')
    
    
    #删除IP屏蔽
    def DelDropAddress(self,get):
        address = get.port
        id = get.id
        if self.__isUfw:
            public.ExecShell('ufw delete deny from ' + address + ' to any');
        else:
            if self.__isFirewalld:
                #self.__Obj.DelDropAddress(address)
                public.ExecShell('firewall-cmd --permanent --remove-rich-rule=\'rule family=ipv4 source address="'+ address +'" drop\'')
            else:
                public.ExecShell('iptables -D INPUT -s '+address+' -j DROP')
        
        public.WriteLog("TYPE_FIREWALL",'FIREWALL_ACCEPT_IP',(address,))
        public.M('firewall').where("id=?",(id,)).delete()
        
        self.FirewallReload();
        return public.returnMsg(True,'DEL_SUCCESS')
    
    
    #添加放行端口
    def AddAcceptPort(self,get):
        import re
        rep = "^\d{1,5}(:\d{1,5})?$"
        if not re.search(rep,get.port): return public.returnMsg(False,'PORT_CHECK_RANGE');
        import time
        port = get.port
        ps = get.ps
        if public.M('firewall').where("port=?",(port,)).count() > 0: return public.returnMsg(False,'FIREWALL_PORT_EXISTS')
        notudps = ['80','443','8444','888','39000:40000','21','22']
        if self.__isUfw:
            public.ExecShell('ufw allow ' + port + '/tcp');
            if not port in notudps: public.ExecShell('ufw allow ' + port + '/udp');
        else:
            if self.__isFirewalld:
                #self.__Obj.AddAcceptPort(port)
                port = port.replace(':','-');
                public.ExecShell('firewall-cmd --permanent --zone=public --add-port='+port+'/tcp')
                if not port in notudps: public.ExecShell('firewall-cmd --permanent --zone=public --add-port='+port+'/udp')
            else:
                public.ExecShell('iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport '+port+' -j ACCEPT')
                if not port in notudps: public.ExecShell('iptables -I INPUT -p tcp -m state --state NEW -m udp --dport '+port+' -j ACCEPT')
        public.WriteLog("TYPE_FIREWALL", 'FIREWALL_ACCEPT_PORT',(port,))
        addtime = time.strftime('%Y-%m-%d %X',time.localtime())
        public.M('firewall').add('port,ps,addtime',(port,ps,addtime))
        
        self.FirewallReload()
        return public.returnMsg(True,'ADD_SUCCESS')
    
    
    #删除放行端口
    def DelAcceptPort(self,get):
        port = get.port
        id = get.id
        try:
            if(port == web.ctx.host.split(':')[1]): return public.returnMsg(False,'FIREWALL_PORT_PANEL')
            if self.__isUfw:
                public.ExecShell('ufw delete allow ' + port + '/tcp');
                public.ExecShell('ufw delete allow ' + port + '/udp');
            else:
                if self.__isFirewalld:
                    #self.__Obj.DelAcceptPort(port)
                    public.ExecShell('firewall-cmd --permanent --zone=public --remove-port='+port+'/tcp')
                    public.ExecShell('firewall-cmd --permanent --zone=public --remove-port='+port+'/udp')
                else:
                    public.ExecShell('iptables -D INPUT -p tcp -m state --state NEW -m tcp --dport '+port+' -j ACCEPT')
                    public.ExecShell('iptables -D INPUT -p tcp -m state --state NEW -m udp --dport '+port+' -j ACCEPT')
            public.WriteLog("TYPE_FIREWALL", 'FIREWALL_DROP_PORT',(port,))
            public.M('firewall').where("id=?",(id,)).delete()
            
            self.FirewallReload()
            return public.returnMsg(True,'DEL_SUCCESS')
        except:
            return public.returnMsg(False,'DEL_ERROR')
    
    #设置远程端口状态
    def SetSshStatus(self,get):
        version = public.readFile('/etc/redhat-release')
        if int(get['status'])==1:
            msg = public.getMsg('FIREWALL_SSH_STOP')
            act = 'stop'
        else:
            msg = public.getMsg('FIREWALL_SSH_START')
            act = 'start'
        
        if not os.path.exists('/etc/redhat-release'):
            public.ExecShell('service ssh ' + act);
        elif version.find(' 7.') != -1:
            public.ExecShell("systemctl "+act+" sshd.service")
        else:
            public.ExecShell("/etc/init.d/sshd "+act)
        
        public.WriteLog("TYPE_FIREWALL", msg)
        return public.returnMsg(True,'SUCCESS')

        
    
    
    #设置ping
    def SetPing(self,get):
        if get.status == '1':
            get.status = '0';
        else:
            get.status = '1';
        filename = '/etc/sysctl.conf'
        conf = public.readFile(filename)
        if conf.find('net.ipv4.icmp_echo') != -1:
            rep = u"net\.ipv4\.icmp_echo.*"
            conf = re.sub(rep,'net.ipv4.icmp_echo_ignore_all='+get.status,conf)
        else:
            conf += "\nnet.ipv4.icmp_echo_ignore_all="+get.status
            
        
        public.writeFile(filename,conf)
        public.ExecShell('sysctl -p')
        return public.returnMsg(True,'SUCCESS') 
        
    
    
    #改远程端口
    def SetSshPort(self,get):
        #return public.returnMsg(False,'演示服务器，禁止此操作!');
        port = get.port
        if int(port) < 22 or int(port) > 65535: return public.returnMsg(False,'FIREWALL_SSH_PORT_ERR');
        ports = ['21','25','80','443','8080','888','8444'];
        if port in ports: return public.returnMsg(False,'');
        
        file = '/etc/ssh/sshd_config'
        conf = public.readFile(file)
        
        rep = "#*Port\s+([0-9]+)\s*\n"
        conf = re.sub(rep, "Port "+port+"\n", conf)
        public.writeFile(file,conf)
        
        if self.__isFirewalld:
            self.__Obj.AddAcceptPort(port);
            public.ExecShell('setenforce 0');
            public.ExecShell('sed -i "s#SELINUX=enforcing#SELINUX=disabled#" /etc/selinux/config');
            public.ExecShell("systemctl restart sshd.service")
        elif self.__isUfw:
            public.ExecShell('ufw allow ' + port + '/tcp');
            public.ExecShell("service ssh restart")
        else:
            public.ExecShell('iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport '+port+' -j ACCEPT')
            public.ExecShell("/etc/init.d/sshd restart")
        
        self.FirewallReload()
        public.M('firewall').where("ps=?",('SSH远程管理服务',)).setField('port',port)
        public.WriteLog("TYPE_FIREWALL", "FIREWALL_SSH_PORT",(port,))
        return public.returnMsg(True,'EDIT_SUCCESS') 
    
    #取SSH信息
    def GetSshInfo(self,get):
        file = '/etc/ssh/sshd_config'
        conf = public.readFile(file)
        rep = "#*Port\s+([0-9]+)\s*\n"
        port = re.search(rep,conf).groups(0)[0]
        import system
        panelsys = system.system();
        
        version = panelsys.GetSystemVersion();
        if os.path.exists('/usr/bin/apt-get'):
             status = public.ExecShell("service ssh status | grep -P '(dead|stop)'")
        else:
            if version.find(' 7.') != -1:
                status = public.ExecShell("systemctl status sshd.service | grep 'dead'")
            else:
                status = public.ExecShell("/etc/init.d/sshd status | grep -e 'stopped' -e '已停'")
            
#       return status;
        if len(status[0]) > 3:
            status = False
        else:
            status = True
        isPing = True
        try:
            file = '/etc/sysctl.conf'
            conf = public.readFile(file)
            rep = "#*net\.ipv4\.icmp_echo_ignore_all\s*=\s*([0-9]+)"
            tmp = re.search(rep,conf).groups(0)[0]
            if tmp == '1': isPing = False
        except:
            isPing = True
        
        
        
        data = {}
        data['port'] = port
        data['status'] = status
        data['ping'] = isPing
        return data