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import sys
if "/www/server/panel/class" not in sys.path:
sys.path.insert(0, "/www/server/panel/class")
import public
from firewallModel.app.appBase import Base
class IptablesServices(Base):
def __init__(self):
pass
def set_chain_rich_ip(self, info, operation, chain):
'''
@name 添加/删除指定链的复杂ip规则
@param "data":{"参数名":""} <数据类型> 参数描述
@return dict{"status":True/False,"msg":"提示信息"}
'''
try:
if "Address" in info and info["Address"] == "":
return self._result(False, "设置规则失败:{}".format("IP地址不能为空"))
if "Address" in info and public.is_ipv6(info['Address']):
return self._result(False, "设置规则失败:{}".format("不支持的IPV6地址"))
if "Timeout" not in info or info["Timeout"] == "":
info["Timeout"] = 0
if chain == "INPUT":
chain = 'in'
else:
chain = 'out'
if operation == "add":
exec_cmd = "ipset add {}_bt_user_{}_ipset {} timeout {}".format(chain,info["Strategy"],info["Address"],info["Timeout"])
else:
exec_cmd = "ipset del {}_bt_user_{}_ipset {}".format( chain, info["Strategy"], info["Address"])
stdout, stderr = public.ExecShell(exec_cmd)
if stderr:
return self._result(False, "设置规则失败:{}".format(stderr))
return self._result(True, "设置规则成功")
except Exception as e:
return self._result(False, "设置规则失败:{}".format(str(e)))
def rich_rules(self,info, operation, chain):
'''
@name
@author csj <2025/3/12 上午9:28>
@param "data":{"参数名":""} <数据类型> 参数描述
@return dict{"status":True/False,"msg":"提示信息"}
'''
if "Priority" in info and not "Port" in info:
return self.set_chain_rich_ip(info, operation, chain)
else:
pass
# 端口类型暂时不用新版
# return self.set_chain_rich_port(info, operation, "INPUT")
# 2024/4/29 下午4:01 获取指定链的数据
def get_chain_data(self, chain):
'''
@name 获取指定链的数据
@author wzz <2024/4/29 下午4:01>
@param "data":{"参数名":""} <数据类型> 参数描述
@return [
{
"Family": "ipv4",
"Address": "192.168.1.190",
"Strategy": "accept",
"Chain": "INPUT",
"Timeout": timeout
}
]
'''
if chain == "INPUT":
ipset_chain = "in"
elif chain == "OUTPUT":
ipset_chain = "out"
else:
return []
rules = []
try:
for strategy in ["accept", "drop"]:
ipset_cmd = "ipset list {}_bt_user_{}_ipset | awk '/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/ && /timeout/ {{print $1, $3}}'".format(ipset_chain, strategy)
stdout, stderr = public.ExecShell(ipset_cmd)
iplist = stdout.split("\n")
for line in iplist:
if line == "": continue
address = line.strip().split(" ")[0]
timeout = line.strip().split(" ")[1]
rule = {
"Family": "ipv4",
"Address": address,
"Strategy": strategy,
"Chain": chain,
"Timeout": timeout
}
rules.append(rule)
return rules
except Exception as e:
return ""
def list_address(self,chains:list = ["INPUT","OUTPUT"]):
"""
获取指定链的ipset列表
:param chains: 链列表 ["INPUT","OUTPUT"]
"""
result = []
for chain in chains:
result = result + self.get_chain_data(chain)
return result
def parse_rules(self, stdout):
'''
@name 解析规则列表输出，返回规则列表字典
@author wzz <2024/3/19 下午 3:53>
字段含义:
"number": 规则编号，对应规则在链中的顺序。
"chain": 规则所属的链的名称。
"pkts": 规则匹配的数据包数量。
"bytes": 规则匹配的数据包字节数。
"target": 规则的目标动作，表示数据包匹配到该规则后应该执行的操作。
"prot": 规则适用的协议类型。
"opt": 规则的选项，包括规则中使用的匹配条件或特定选项。
"in": 规则匹配的数据包的输入接口。
"out": 规则匹配的数据包的输出接口。
"source": 规则匹配的数据包的源地址。
"destination": 规则匹配的数据包的目标地址。
"options": 规则的其他选项或说明，通常是规则中的注释或附加信息。
protocol(port协议头中数字对应的协议类型):
0: 表示所有协议
1: ICMP（Internet 控制消息协议）
6: TCP（传输控制协议）
17: UDP（用户数据报协议）
@param "data":{"参数名":""} <数据类型> 参数描述
@return dict{"status":True/False,"msg":"提示信息"}
'''
lines = stdout.strip().split('\n')
rules = []
current_chain = None
for line in lines:
if line.startswith("Chain"):
current_chain = line.split()[1]
elif (line.startswith("target") or line.strip() == "" or "source" in line or
"Warning: iptables-legacy tables present" in line):
# 过滤表头,空行,警告
continue
else:
rule_info = line.split()
rule = {
"number": rule_info[0],
"chain": current_chain,
"pkts": rule_info[1],
"bytes": rule_info[2],
"target": rule_info[3],
"prot": rule_info[4],
"opt": rule_info[5],
"in": rule_info[6],
"out": rule_info[7],
"source": rule_info[8],
"destination": rule_info[9],
"options": " ".join(rule_info[10:]).strip()
}
rules.append(rule)
return rules
def list_rules(self, parm):
'''
@name 列出指定表的指定链的规则
@author wzz <2024/3/19 下午 3:02>
@param
@return
'''
try:
stdout = subprocess.check_output(
['iptables', '-t', parm['table'], '-L', parm['chain_name'], '-nv', '--line-numbers'],
stderr=subprocess.STDOUT, universal_newlines=True
)
return self.parse_rules(stdout)
except Exception as e:
return []
def list_port_forward(self):
'''
@name 调用list_rules获取所有nat表中的PREROUTING链的规则(端口转发规则),并分析成字典返回
@return dict{"status":True/False,"msg":"提示信息"}
'''
try:
port_forward_rules = self.list_rules({"table": "nat", "chain_name": "FORWARD_BT"})
rules = []
for rule in port_forward_rules:
rule_item={
"type": "port_forward",
"number": rule["number"],
"S_Address": rule["source"],
"S_Port": "",
"T_Address": "",
"T_Port": "",
"Protocol": "TCP"
}
options = rule["options"].split(' ')
if rule["target"] == "DNAT": # 外部转发 有IP
rule_item["S_Port"] = options[1].split("dpt:")[1]
rule_item["T_Address"] = options[2].split("to:")[1].split(":")[0]
rule_item["T_Port"] = options[2].split("to:")[1].split(":")[1]
elif rule["target"] == "REDIRECT": # 内部转发无IP
rule_item["S_Port"] = options[1].split("dpt:")[1]
rule_item["T_Address"] = "127.0.0.1"
rule_item["T_Port"] = options[-1]
else:
continue
if rule["prot"] == "6" or rule["prot"] == "tcp":
rule_item["Protocol"] = "TCP"
elif rule["prot"] == "17" or rule["prot"] == "udp":
rule_item["Protocol"] = "UDP"
rules.append(rule_item)
return rules
except Exception as e:
return []
def port_forward(self,info,operation):
"""
设置端口转发规则
:param info: 规则信息
:param operation: 操作类型 add/del
"""
to_addr = info["T_Address"]
if operation == "add":
operation = "A"
else:
operation = "D"
is_lo = False
if to_addr == "" or to_addr == "0.0.0.0" or to_addr == "127.0.0.1" or to_addr=="0.0.0.0/0":
is_lo = True
if is_lo :
# iptables -t nat -A FORWARD_BT -p tcp --dport 3330 -j REDIRECT --to-port 7777
exec_cmd = "iptables -t nat -{operation} FORWARD_BT -p {proto} --dport {sport} -j REDIRECT --to-port {tport}".format(
operation=operation,proto=info["Protocol"],sport=info["S_Port"],tport=info["T_Port"])
else:
# "iptables -t nat -A FORWARD_BT -p tcp --dport 3331 -j DNAT --to-destination 192.168.69.135:7777"
exec_cmd = "iptables -t nat -{operation} FORWARD_BT -p {proto} --dport {sport} -j DNAT --to-destination {taddr}:{tport}".format(
operation=operation,proto=info["Protocol"],addr=info["S_Address"],sport=info["S_Port"],taddr=to_addr,tport=info["T_Port"])
# public.print_log(exec_cmd)
stdout, stderr = public.ExecShell(exec_cmd)
if stderr:
return self._result(False, "设置规则失败:{}".format(stderr))
public.ExecShell("systemctl reload BT-FirewallServices")
return self._result(True, "设置规则成功") |