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web_transfer.py
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web_transfer.py
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# -*- coding: UTF-8 -*-
'''
Web api for django-sspanel
'''
import sys
import time
import logging
import traceback
from datetime import datetime
import requests
import importloader
from server_pool import ServerPool
from configloader import load_config, get_config
from shadowsocks import common, shell, lru_cache, obfs
class EhcoApi(object):
'''
提供发送get/post的抽象类
'''
def __init__(self):
self.session_pool = requests.Session()
self.TOKEN = get_config().TOKEN
self.WEBAPI_URL = get_config().WEBAPI_URL
def getApi(self, uri):
res = None
try:
payload = {'token': self.TOKEN}
url = self.WEBAPI_URL+uri
res = self.session_pool.get(url, params=payload, timeout=10)
time.sleep(0.005)
try:
data = res.json()
except Exception:
if res:
logging.error('接口返回值格式错误: {}'.format(res.text))
return []
if data['ret'] == -1:
logging.error("接口返回值不正确:{}".format(res.text))
logging.error("请求头:{}".format(uri))
return []
return data['data']
except Exception:
import traceback
trace = traceback.format_exc()
logging.error(trace)
raise Exception(
'网络问题,请保证api接口地址设置正确!当前接口地址:{}'.format(self.WEBAPI_URL))
def postApi(self, uri, raw_data={}):
res = None
try:
payload = {'token': self.TOKEN}
url = self.WEBAPI_URL+uri
res = self.session_pool.post(
url, params=payload, json=raw_data, timeout=10)
time.sleep(0.005)
try:
data = res.json()
except Exception:
if res:
logging.error('接口返回值格式错误: {}'.format(res.text))
return []
if data['ret'] == -1:
logging.error("接口返回值不正确:{}".format(res.text))
logging.error("请求头:{}".format(uri))
return []
return data['data']
except Exception:
import traceback
trace = traceback.format_exc()
logging.error(trace)
raise Exception(
'网络问题,请保证api接口地址设置正确!当前接口地址:{}'.format(self.WEBAPI_URL))
def close(self):
self.session_pool.close()
class WebTransfer(object):
def __init__(self):
import threading
self.event = threading.Event()
self.start_time = time.time()
self.cfg = {}
self.load_cfg() # 载入流量比例设置
self.last_get_transfer = {} # 上一次的实际流量
self.last_update_transfer = {} # 上一次更新到的流量(小于等于实际流量)
self.force_update_transfer = set() # 强制推入数据库的ID
self.port_uid_table = {} # 端口到uid的映射(仅v3以上有用)
self.onlineuser_cache = lru_cache.LRUCache(timeout=60 * 30) # 用户在线状态记录
self.pull_ok = False # 记录是否已经拉出过数据
self.mu_ports = {}
def load_cfg(self):
import json
config_path = get_config().MYSQL_CONFIG
cfg = None
with open(config_path, 'rb+') as f:
cfg = json.loads(f.read().decode('utf8'))
if cfg:
self.cfg.update(cfg)
def push_db_all_user(self):
if self.pull_ok is False:
return
# 更新用户流量到数据库
last_transfer = self.last_update_transfer
curr_transfer = ServerPool.get_instance().get_servers_transfer()
# 上次和本次的增量
dt_transfer = {}
for id in self.force_update_transfer: # 此表中的用户统计上次未计入的流量
if id in self.last_get_transfer and id in last_transfer:
dt_transfer[id] = [self.last_get_transfer[id][0] - last_transfer[id]
[0], self.last_get_transfer[id][1] - last_transfer[id][1]]
for id in curr_transfer.keys():
if id in self.force_update_transfer or id in self.mu_ports:
continue
# 算出与上次记录的流量差值,保存于dt_transfer表
if id in last_transfer:
if curr_transfer[id][0] + curr_transfer[id][1] - last_transfer[id][0] - last_transfer[id][1] <= 0:
continue
dt_transfer[id] = [curr_transfer[id][0] - last_transfer[id][0],
curr_transfer[id][1] - last_transfer[id][1]]
else:
if curr_transfer[id][0] + curr_transfer[id][1] <= 0:
continue
dt_transfer[id] = [curr_transfer[id][0], curr_transfer[id][1]]
# 有流量的,先记录在线状态
if id in self.last_get_transfer:
if curr_transfer[id][0] + curr_transfer[id][1] > self.last_get_transfer[id][0] + self.last_get_transfer[id][1]:
self.onlineuser_cache[id] = curr_transfer[id][0] + \
curr_transfer[id][1]
else:
self.onlineuser_cache[id] = curr_transfer[id][0] + \
curr_transfer[id][1]
self.onlineuser_cache.sweep()
update_transfer = self.update_all_user(dt_transfer) # 返回有更新的表
for id in update_transfer.keys(): # 其增量加在此表
if id not in self.force_update_transfer: # 但排除在force_update_transfer内的
last = self.last_update_transfer.get(id, [0, 0])
self.last_update_transfer[id] = [
last[0] + update_transfer[id][0], last[1] + update_transfer[id][1]]
self.last_get_transfer = curr_transfer
for id in self.force_update_transfer:
if id in self.last_update_transfer:
del self.last_update_transfer[id]
if id in self.last_get_transfer:
del self.last_get_transfer[id]
self.force_update_transfer = set()
def del_server_out_of_bound_safe(self, last_rows, rows):
# 停止超流量的服务
# 启动没超流量的服务
# 停止等级不足的服务
try:
switchrule = importloader.load('switchrule')
except Exception as e:
logging.error('load switchrule.py fail')
cur_servers = {}
new_servers = {}
allow_users = {}
mu_servers = {}
config = shell.get_config(False)
for row in rows:
try:
allow = switchrule.isTurnOn(
row) and row['enable'] == 1 and row['u'] + row['d'] < row['transfer_enable']
except Exception as e:
allow = False
port = row['port']
passwd = common.to_bytes(row['passwd'])
if hasattr(passwd, 'encode'):
passwd = passwd.encode('utf-8')
cfg = {'password': passwd}
if 'id' in row:
self.port_uid_table[row['port']] = row['id']
read_config_keys = ['method', 'obfs', 'obfs_param', 'protocol', 'protocol_param',
'forbidden_ip', 'forbidden_port', 'speed_limit_per_con', 'speed_limit_per_user']
for name in read_config_keys:
if name in row and row[name]:
cfg[name] = row[name]
merge_config_keys = ['password'] + read_config_keys
for name in cfg.keys():
if hasattr(cfg[name], 'encode'):
try:
cfg[name] = cfg[name].encode('utf-8')
except Exception as e:
logging.warning(
'encode cfg key "{}" fail, val "{}"'.format(name, cfg[name]))
if port not in cur_servers:
cur_servers[port] = passwd
else:
logging.error(
'more than one user use the same port [{}]'.format(port,))
continue
if 'protocol' in cfg and 'protocol_param' in cfg and common.to_str(cfg['protocol']) in obfs.mu_protocol():
if '#' in common.to_str(cfg['protocol_param']):
mu_servers[port] = passwd
allow = True
if allow:
if port not in mu_servers:
allow_users[port] = cfg
cfgchange = False
if port in ServerPool.get_instance().tcp_servers_pool:
relay = ServerPool.get_instance().tcp_servers_pool[port]
for name in merge_config_keys:
if name in cfg and not self.cmp(cfg[name], relay._config[name]):
cfgchange = True
break
if not cfgchange and port in ServerPool.get_instance().tcp_ipv6_servers_pool:
relay = ServerPool.get_instance(
).tcp_ipv6_servers_pool[port]
for name in merge_config_keys:
if (name in cfg) and ((name not in relay._config) or not self.cmp(cfg[name], relay._config[name])):
cfgchange = True
break
if port in mu_servers:
if ServerPool.get_instance().server_is_run(port) > 0:
if cfgchange:
logging.info(
'db stop server at port [{}] reason: config changed: {}'.format(port, cfg))
ServerPool.get_instance().cb_del_server(port)
self.force_update_transfer.add(port)
new_servers[port] = (passwd, cfg)
else:
self.new_server(port, passwd, cfg)
else:
if ServerPool.get_instance().server_is_run(port) > 0:
if config['additional_ports_only'] or not allow:
logging.info(
'db stop server at port [{}]'.format(port,))
ServerPool.get_instance().cb_del_server(port)
self.force_update_transfer.add(port)
else:
if cfgchange:
logging.info(
'db stop server at port [{}] reason: config changed: {}'.format(port, cfg))
ServerPool.get_instance().cb_del_server(port)
self.force_update_transfer.add(port)
new_servers[port] = (passwd, cfg)
elif not config['additional_ports_only'] and allow and port > 0 and port < 65536 and ServerPool.get_instance().server_run_status(port) is False:
self.new_server(port, passwd, cfg)
for row in last_rows:
if row['port'] in cur_servers:
pass
else:
logging.info(
'db stop server at port [{}] reason: port not exist'.format(row['port']))
ServerPool.get_instance().cb_del_server(row['port'])
self.clear_cache(row['port'])
if row['port'] in self.port_uid_table:
del self.port_uid_table[row['port']]
if len(new_servers) > 0:
from shadowsocks import eventloop
self.event.wait(eventloop.TIMEOUT_PRECISION +
eventloop.TIMEOUT_PRECISION / 2)
for port in new_servers.keys():
passwd, cfg = new_servers[port]
self.new_server(port, passwd, cfg)
logging.debug('db allow users {} \nmu_servers {}'.format(
allow_users, mu_servers))
for port in mu_servers:
ServerPool.get_instance().update_mu_users(port, allow_users)
self.mu_ports = mu_servers
def clear_cache(self, port):
if port in self.force_update_transfer:
del self.force_update_transfer[port]
if port in self.last_get_transfer:
del self.last_get_transfer[port]
if port in self.last_update_transfer:
del self.last_update_transfer[port]
def new_server(self, port, passwd, cfg):
protocol = cfg.get(
'protocol', ServerPool.get_instance().config.get('protocol', 'origin'))
method = cfg.get(
'method', ServerPool.get_instance().config.get('method', 'None'))
obfs = cfg.get(
'obfs', ServerPool.get_instance().config.get('obfs', 'plain'))
logging.info('db start server at port [{}] pass [{}] protocol [{}] method [{}] obfs [{}]'.format(
port, passwd, protocol, method, obfs))
ServerPool.get_instance().new_server(port, cfg)
def cmp(self, val1, val2):
if type(val1) is bytes:
val1 = common.to_str(val1)
if type(val2) is bytes:
val2 = common.to_str(val2)
return val1 == val2
def pull_db_all_user(self):
'''
拉取符合要求的用户信息
'''
global webapi
# api = EhcoApi()
node_id = get_config().NODE_ID
# 获取节点流量比例信息
nodeinfo = webapi.getApi('/nodes/{}'.format(node_id))
if not nodeinfo:
logging.warn(
'没有查询到满足要求的节点,请检查自己的node_id!,或者该节点流量已经用光,当前节点ID:{}'.format(node_id))
rows = []
return rows
# 流量比例设置
node_info_keys = ['traffic_rate', ]
node_info_dict = {}
for column in range(len(nodeinfo)):
node_info_dict[node_info_keys[column]] = nodeinfo[column]
self.cfg['transfer_mul'] = float(node_info_dict['traffic_rate'])
# 获取符合条件的用户信息
data = webapi.getApi('/users/nodes/{}'.format(node_id))
if not data:
rows = []
logging.warn(
'没有查询到满足要求的user,请检查自己的node_id!')
return rows
rows = data
return rows
def update_all_user(self, dt_transfer):
global webapi
node_id = get_config().NODE_ID
update_transfer = {}
# 用户流量上报
data = []
for id in dt_transfer.keys():
if dt_transfer[id][0] == 0 and dt_transfer[id][1] == 0:
continue
data.append({'u': dt_transfer[id][0], 'd': dt_transfer[
id][1], 'user_id': self.port_uid_table[id]})
update_transfer[id] = dt_transfer[id]
if len(data) > 0:
tarffic_data = {'node_id': node_id,
'data': data}
webapi.postApi('/traffic/upload', tarffic_data)
# 节点在线ip上报
node_online_ip = ServerPool.get_instance().get_servers_ip_list()
ip_data = {}
for k, v in node_online_ip.items():
ip_data[self.port_uid_table[k]] = v
webapi.postApi('/nodes/aliveip',
{'node_id': node_id,
'data': ip_data})
# 节点人数上报
alive_user_count = len(self.onlineuser_cache)
online_data = {'node_id': node_id,
'online_user': alive_user_count}
webapi.postApi('/nodes/online', online_data)
return update_transfer
def load(self):
import os
try:
return os.popen("cat /proc/loadavg | awk '{ print $1\" \"$2\" \"$3 }'").readlines()[0]
except:
return '系统不支持负载检测'
def uptime(self):
return round(time.time() - self.start_time)
@staticmethod
def del_servers():
for port in [v for v in ServerPool.get_instance().tcp_servers_pool.keys()]:
if ServerPool.get_instance().server_is_run(port) > 0:
ServerPool.get_instance().cb_del_server(port)
for port in [v for v in ServerPool.get_instance().tcp_ipv6_servers_pool.keys()]:
if ServerPool.get_instance().server_is_run(port) > 0:
ServerPool.get_instance().cb_del_server(port)
@staticmethod
def thread_db(obj):
import socket
import time
global db_instance
global webapi
timeout = 60
socket.setdefaulttimeout(timeout)
last_rows = []
db_instance = obj()
ServerPool.get_instance()
shell.log_shadowsocks_version()
webapi = EhcoApi()
try:
import resource
logging.info('current process RLIMIT_NOFILE resource: soft %d hard %d' %
resource.getrlimit(resource.RLIMIT_NOFILE))
except:
pass
try:
while True:
load_config()
db_instance.load_cfg()
try:
db_instance.push_db_all_user()
rows = db_instance.pull_db_all_user()
if rows:
db_instance.pull_ok = True
config = shell.get_config(False)
for port in config['additional_ports']:
val = config['additional_ports'][port]
val['port'] = int(port)
val['enable'] = 1
val['transfer_enable'] = 1024 ** 7
val['u'] = 0
val['d'] = 0
if "password" in val:
val["passwd"] = val["password"]
rows.append(val)
db_instance.del_server_out_of_bound_safe(last_rows, rows)
last_rows = rows
except Exception as e:
trace = traceback.format_exc()
logging.error(trace)
# logging.warn('db thread except:%s' % e)
if db_instance.event.wait(get_config().UPDATE_TIME) or not ServerPool.get_instance().thread.is_alive():
break
except KeyboardInterrupt as e:
pass
db_instance.del_servers()
ServerPool.get_instance().stop()
db_instance = None
@staticmethod
def thread_db_stop():
global db_instance
db_instance.event.set()