File size: 10,720 Bytes
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import re
from typing import Tuple
import public
from .base import BaseProjectCommon
class LimitNet(BaseProjectCommon):
def get_limit_net(self, get):
if public.get_webserver() != 'nginx':
return public.returnMsg(False, 'SITE_NETLIMIT_ERR')
try:
site_id = int(get.site_id)
except (AttributeError, TypeError, ValueError):
return public.returnMsg(False, "参数错误")
if self.config_prefix is None:
return public.returnMsg(False, "不支持的网站类型")
# 取配置文件
site_name = public.M('sites').where("id=?", (site_id,)).getField('name')
filename = "{}/vhost/nginx/{}{}.conf".format(self.setup_path, self.config_prefix, site_name)
conf = public.readFile(filename)
if not isinstance(conf, str):
return public.returnMsg(False, "配置文件读取错误")
# 站点总并发
data = {
'perserver': 0,
'perip': 0,
'limit_rate': 0,
}
rep_per_server = re.compile(r"(?P<prefix>.*)limit_conn +perserver +(?P<target>\d+) *; *", re.M)
tmp_res = rep_per_server.search(conf)
if tmp_res is not None and tmp_res.group("prefix").find("#") == -1: # 有且不是注释
data['perserver'] = int(tmp_res.group("target"))
# IP并发限制
rep_per_ip = re.compile(r"(?P<prefix>.*)limit_conn +perip +(?P<target>\d+) *; *", re.M)
tmp_res = rep_per_ip.search(conf)
if tmp_res is not None and tmp_res.group("prefix").find("#") == -1: # 有且不是注释
data['perip'] = int(tmp_res.group("target"))
# 请求并发限制
rep_limit_rate = re.compile(r"(?P<prefix>.*)limit_rate +(?P<target>\d+)\w+ *; *", re.M)
tmp_res = rep_limit_rate.search(conf)
if tmp_res is not None and tmp_res.group("prefix").find("#") == -1: # 有且不是注释
data['limit_rate'] = int(tmp_res.group("target"))
self._show_limit_net(data)
return data
@staticmethod
def _show_limit_net(data):
values = [
[300, 25, 512],
[200, 10, 1024],
[50, 3, 2048],
[500, 10, 2048],
[400, 15, 1024],
[60, 10, 512],
[150, 4, 1024],
]
for i, c in enumerate(values):
if data["perserver"] == c[0] and data["perip"] == c[1] and data["limit_rate"] == c[2]:
data["value"] = i + 1
break
else:
data["value"] = 0
@staticmethod
def _set_nginx_conf_limit() -> Tuple[bool, str]:
# 设置共享内存
nginx_conf_file = "/www/server/nginx/conf/nginx.conf"
if not os.path.exists(nginx_conf_file):
return False, "nginx配置文件丢失"
nginx_conf = public.readFile(nginx_conf_file)
rep_perip = re.compile(r"\s+limit_conn_zone +\$binary_remote_addr +zone=perip:10m;", re.M)
rep_per_server = re.compile(r"\s+limit_conn_zone +\$server_name +zone=perserver:10m;", re.M)
perip_res = rep_perip.search(nginx_conf)
per_serve_res = rep_per_server.search(nginx_conf)
if perip_res and per_serve_res:
return True, ""
elif perip_res or per_serve_res:
tmp_res = perip_res or per_serve_res
new_conf = nginx_conf[:tmp_res.start()] + (
"\n\t\tlimit_conn_zone $binary_remote_addr zone=perip:10m;"
"\n\t\tlimit_conn_zone $server_name zone=perserver:10m;"
) + nginx_conf[tmp_res.end():]
else:
# 通过检查第一个server的位置
rep_first_server = re.compile(r"http\s*\{(.*\n)*\s*server\s*\{")
tmp_res = rep_first_server.search(nginx_conf)
if tmp_res:
old_http_conf = tmp_res.group()
# 在第一个server项前添加
server_idx = old_http_conf.rfind("server")
new_http_conf = old_http_conf[:server_idx] + (
"\n\t\tlimit_conn_zone $binary_remote_addr zone=perip:10m;"
"\n\t\tlimit_conn_zone $server_name zone=perserver:10m;\n"
) + old_http_conf[server_idx:]
new_conf = rep_first_server.sub(new_http_conf, nginx_conf, 1)
else:
# 在没有配置其他server项目时，通过检查include server项目检查
# 通检查 include /www/server/panel/vhost/nginx/*.conf; 位置
rep_include = re.compile(r"http\s*\{(.*\n)*\s*include +/www/server/panel/vhost/nginx/\*\.conf;")
tmp_res = rep_include.search(nginx_conf)
if not tmp_res:
return False, "全局配置缓存配置失败"
old_http_conf = tmp_res.group()
include_idx = old_http_conf.rfind("include ")
new_http_conf = old_http_conf[:include_idx] + (
"\n\t\tlimit_conn_zone $binary_remote_addr zone=perip:10m;"
"\n\t\tlimit_conn_zone $server_name zone=perserver:10m;\n"
) + old_http_conf[include_idx:]
new_conf = rep_first_server.sub(new_http_conf, nginx_conf, 1)
public.writeFile(nginx_conf_file, new_conf)
if public.checkWebConfig() is not True: # 检测失败，无法添加
public.writeFile(nginx_conf_file, nginx_conf)
return False, "全局配置缓存配置失败"
return True, ""
# 设置流量限制
def set_limit_net(self, get):
if public.get_webserver() != 'nginx':
return public.returnMsg(False, 'SITE_NETLIMIT_ERR')
try:
site_id = int(get.site_id)
per_server = int(get.perserver)
perip = int(get.perip)
limit_rate = int(get.limit_rate)
except (AttributeError, TypeError, ValueError):
return public.returnMsg(False, "参数错误")
if per_server < 1 or perip < 1 or limit_rate < 1:
return public.returnMsg(False, '并发限制，IP限制，流量限制必需大于0')
# 取配置文件
site_info = public.M('sites').where("id=?", (site_id,)).find()
if not isinstance(site_info, dict):
return public.returnMsg(False, "站点信息查询错误")
else:
site_name = site_info["name"]
filename = "{}/vhost/nginx/{}{}.conf".format(self.setup_path, self.config_prefix, site_name)
site_conf: str = public.readFile(filename)
if not isinstance(site_conf, str):
return public.returnMsg(False, "配置文件读取错误")
flag, msg = self._set_nginx_conf_limit()
if not flag:
return public.returnMsg(False, msg)
per_server_str = ' limit_conn perserver {};'.format(per_server)
perip_str = ' limit_conn perip {};'.format(perip)
limit_rate_str = ' limit_rate {}k;'.format(limit_rate)
# 请求并发限制
new_conf = site_conf
ssl_end_res = re.search(r"#error_page 404/404.html;[^\n]*\n", new_conf)
if ssl_end_res is None:
return public.returnMsg(False, "未定位到SSL的相关配置，添加失败")
ssl_end_idx = ssl_end_res.end()
rep_limit_rate = re.compile(r"(.*)limit_rate +(\d+)\w+ *; *", re.M)
tmp_res = rep_limit_rate.search(new_conf)
if tmp_res is not None :
new_conf = rep_limit_rate.sub(limit_rate_str, new_conf)
else:
new_conf = new_conf[:ssl_end_idx] + limit_rate_str + "\n" + new_conf[ssl_end_idx:]
# IP并发限制
rep_per_ip = re.compile(r"(.*)limit_conn +perip +(\d+) *; *", re.M)
tmp_res = rep_per_ip.search(new_conf)
if tmp_res is not None:
new_conf = rep_per_ip.sub(perip_str, new_conf)
else:
new_conf = new_conf[:ssl_end_idx] + perip_str + "\n" + new_conf[ssl_end_idx:]
rep_per_server = re.compile(r"(.*)limit_conn +perserver +(\d+) *; *", re.M)
tmp_res = rep_per_server.search(site_conf)
if tmp_res is not None:
new_conf = rep_per_server.sub(per_server_str, new_conf)
else:
new_conf = new_conf[:ssl_end_idx] + per_server_str + "\n" + new_conf[ssl_end_idx:]
public.writeFile(filename, new_conf)
is_error = public.checkWebConfig()
if is_error is not True:
public.writeFile(filename, site_conf)
return public.returnMsg(False, 'ERROR:<br><a style="color:red;">' + is_error.replace("\n", '<br>') + '</a>')
public.serviceReload()
public.WriteLog('TYPE_SITE', 'SITE_NETLIMIT_OPEN_SUCCESS', (site_name,))
return public.returnMsg(True, 'SET_SUCCESS')
# 关闭流量限制
def close_limit_net(self, get):
if public.get_webserver() != 'nginx':
return public.returnMsg(False, 'SITE_NETLIMIT_ERR')
if self.config_prefix is None:
return public.returnMsg(False, "不支持的网站类型")
try:
site_id = int(get.site_id)
except (AttributeError, TypeError, ValueError):
return public.returnMsg(False, "参数错误")
# 取回配置文件
site_info = public.M('sites').where("id=?", (site_id,)).find()
if not isinstance(site_info, dict):
return public.returnMsg(False, "站点信息查询错误")
else:
site_name = site_info["name"]
filename = "{}/vhost/nginx/{}{}.conf".format(self.setup_path, self.config_prefix, site_name)
site_conf = public.readFile(filename)
if not isinstance(site_conf, str):
return public.returnMsg(False, "配置文件读取错误")
# 清理总并发
rep_limit_rate = re.compile(r"(.*)limit_rate +(\d+)\w+ *; *\n?", re.M)
rep_per_ip = re.compile(r"(.*)limit_conn +perip +(\d+) *; *\n?", re.M)
rep_per_server = re.compile(r"(.*)limit_conn +perserver +(\d+) *; *\n?", re.M)
new_conf = site_conf
new_conf = rep_limit_rate.sub("", new_conf, 1)
new_conf = rep_per_ip.sub("", new_conf, 1)
new_conf = rep_per_server.sub("", new_conf, 1)
public.writeFile(filename, new_conf)
is_error = public.checkWebConfig()
if is_error is not True:
public.writeFile(filename, site_conf)
return public.returnMsg(False, 'ERROR:<br><a style="color:red;">' + is_error.replace("\n", '<br>') + '</a>')
public.serviceReload()
public.WriteLog('TYPE_SITE', 'SITE_NETLIMIT_CLOSE_SUCCESS', (site_name,))
return public.returnMsg(True, 'SITE_NETLIMIT_CLOSE_SUCCESS')
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