254 lines
8 KiB
Python
254 lines
8 KiB
Python
#!/usr/bin/python
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# -*- coding: UTF-8 -*-
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import logging
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import time
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import sys
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from server_pool import ServerPool
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import traceback
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from shadowsocks import common, shell
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from configloader import load_config, get_config
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db_instance = None
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class DbTransfer(object):
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def __init__(self):
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import threading
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self.last_get_transfer = {}
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self.event = threading.Event()
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def update_all_user(self, dt_transfer):
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import cymysql
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query_head = 'UPDATE user'
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query_sub_when = ''
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query_sub_when2 = ''
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query_sub_in = None
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last_time = time.time()
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for id in dt_transfer.keys():
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if dt_transfer[id][0] == 0 and dt_transfer[id][1] == 0:
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continue
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query_sub_when += ' WHEN %s THEN u+%s' % (id, dt_transfer[id][0])
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query_sub_when2 += ' WHEN %s THEN d+%s' % (id, dt_transfer[id][1])
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if query_sub_in is not None:
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query_sub_in += ',%s' % id
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else:
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query_sub_in = '%s' % id
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if query_sub_when == '':
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return
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query_sql = query_head + ' SET u = CASE port' + query_sub_when + \
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' END, d = CASE port' + query_sub_when2 + \
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' END, t = ' + str(int(last_time)) + \
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' WHERE port IN (%s)' % query_sub_in
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#print query_sql
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conn = cymysql.connect(host=get_config().MYSQL_HOST, port=get_config().MYSQL_PORT, user=get_config().MYSQL_USER,
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passwd=get_config().MYSQL_PASS, db=get_config().MYSQL_DB, charset='utf8')
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cur = conn.cursor()
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cur.execute(query_sql)
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cur.close()
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conn.commit()
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conn.close()
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def push_db_all_user(self):
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#更新用户流量到数据库
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last_transfer = self.last_get_transfer
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curr_transfer = ServerPool.get_instance().get_servers_transfer()
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#上次和本次的增量
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dt_transfer = {}
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for id in curr_transfer.keys():
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if id in last_transfer:
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if last_transfer[id][0] == curr_transfer[id][0] and last_transfer[id][1] == curr_transfer[id][1]:
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continue
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elif curr_transfer[id][0] == 0 and curr_transfer[id][1] == 0:
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continue
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elif last_transfer[id][0] <= curr_transfer[id][0] and \
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last_transfer[id][1] <= curr_transfer[id][1]:
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dt_transfer[id] = [int((curr_transfer[id][0] - last_transfer[id][0]) * get_config().TRANSFER_MUL),
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int((curr_transfer[id][1] - last_transfer[id][1]) * get_config().TRANSFER_MUL)]
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else:
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dt_transfer[id] = [int(curr_transfer[id][0] * get_config().TRANSFER_MUL),
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int(curr_transfer[id][1] * get_config().TRANSFER_MUL)]
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else:
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if curr_transfer[id][0] == 0 and curr_transfer[id][1] == 0:
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continue
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dt_transfer[id] = [int(curr_transfer[id][0] * get_config().TRANSFER_MUL),
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int(curr_transfer[id][1] * get_config().TRANSFER_MUL)]
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self.update_all_user(dt_transfer)
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self.last_get_transfer = curr_transfer
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def pull_db_all_user(self):
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import cymysql
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#数据库所有用户信息
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try:
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import switchrule
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reload(switchrule)
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keys = switchrule.getKeys()
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except Exception as e:
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keys = ['port', 'u', 'd', 'transfer_enable', 'passwd', 'enable' ]
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conn = cymysql.connect(host=get_config().MYSQL_HOST, port=get_config().MYSQL_PORT, user=get_config().MYSQL_USER,
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passwd=get_config().MYSQL_PASS, db=get_config().MYSQL_DB, charset='utf8')
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cur = conn.cursor()
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cur.execute("SELECT " + ','.join(keys) + " FROM user")
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rows = []
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for r in cur.fetchall():
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d = {}
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for column in range(len(keys)):
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d[keys[column]] = r[column]
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rows.append(d)
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cur.close()
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conn.close()
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return rows
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def del_server_out_of_bound_safe(self, last_rows, rows):
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#停止超流量的服务
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#启动没超流量的服务
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#需要动态载入switchrule，以便实时修改规则
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try:
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import switchrule
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reload(switchrule)
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except Exception as e:
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logging.error('load switchrule.py fail')
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cur_servers = {}
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new_servers = {}
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for row in rows:
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try:
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allow = switchrule.isTurnOn(row) and row['enable'] == 1 and row['u'] + row['d'] < row['transfer_enable']
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except Exception as e:
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allow = False
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port = row['port']
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passwd = common.to_bytes(row['passwd'])
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cfg = {'password': passwd}
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for name in ['method', 'obfs', 'protocol']:
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if name in row and row[name]:
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cfg[name] = row[name]
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for name in cfg.keys():
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if hasattr(cfg[name], 'encode'):
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cfg[name] = cfg[name].encode('utf-8')
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if port not in cur_servers:
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cur_servers[port] = passwd
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else:
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logging.error('more than one user use the same port [%s]' % (port,))
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continue
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if ServerPool.get_instance().server_is_run(port) > 0:
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if not allow:
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logging.info('db stop server at port [%s]' % (port,))
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ServerPool.get_instance().cb_del_server(port)
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else:
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cfgchange = False
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if port in ServerPool.get_instance().tcp_servers_pool:
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relay = ServerPool.get_instance().tcp_servers_pool[port]
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for name in ['password', 'method', 'obfs', 'protocol']:
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if name in cfg and cfg[name] != relay._config[name]:
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cfgchange = True
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break;
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if not cfgchange and port in ServerPool.get_instance().tcp_ipv6_servers_pool:
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relay = ServerPool.get_instance().tcp_ipv6_servers_pool[port]
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for name in ['password', 'method', 'obfs', 'protocol']:
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if name in cfg and cfg[name] != relay._config[name]:
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cfgchange = True
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break;
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#config changed
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if cfgchange:
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logging.info('db stop server at port [%s] reason: config changed: %s' % (port, cfg))
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ServerPool.get_instance().cb_del_server(port)
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new_servers[port] = (passwd, cfg)
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elif allow and ServerPool.get_instance().server_run_status(port) is False:
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#new_servers[port] = passwd
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logging.info('db start server at port [%s] pass [%s]' % (port, passwd))
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ServerPool.get_instance().new_server(port, cfg)
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for row in last_rows:
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if row['port'] in cur_servers:
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pass
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else:
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logging.info('db stop server at port [%s] reason: port not exist' % (row['port']))
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ServerPool.get_instance().cb_del_server(row['port'])
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if len(new_servers) > 0:
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from shadowsocks import eventloop
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self.event.wait(eventloop.TIMEOUT_PRECISION)
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for port in new_servers.keys():
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passwd, cfg = new_servers[port]
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logging.info('db start server at port [%s] pass [%s]' % (port, passwd))
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ServerPool.get_instance().new_server(port, cfg)
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@staticmethod
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def del_servers():
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for port in ServerPool.get_instance().tcp_servers_pool.keys():
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if ServerPool.get_instance().server_is_run(port) > 0:
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ServerPool.get_instance().cb_del_server(port)
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for port in ServerPool.get_instance().tcp_ipv6_servers_pool.keys():
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if ServerPool.get_instance().server_is_run(port) > 0:
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ServerPool.get_instance().cb_del_server(port)
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@staticmethod
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def thread_db(obj):
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import socket
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import time
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global db_instance
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timeout = 60
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socket.setdefaulttimeout(timeout)
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last_rows = []
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db_instance = obj()
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try:
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while True:
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load_config()
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try:
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db_instance.push_db_all_user()
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rows = db_instance.pull_db_all_user()
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db_instance.del_server_out_of_bound_safe(last_rows, rows)
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last_rows = rows
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except Exception as e:
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trace = traceback.format_exc()
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logging.error(trace)
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#logging.warn('db thread except:%s' % e)
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if db_instance.event.wait(get_config().MYSQL_UPDATE_TIME) or not ServerPool.get_instance().thread.is_alive():
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break
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except KeyboardInterrupt as e:
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pass
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db_instance.del_servers()
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ServerPool.get_instance().stop()
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db_instance = None
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@staticmethod
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def thread_db_stop():
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global db_instance
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db_instance.event.set()
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class MuJsonTransfer(DbTransfer):
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def __init__(self):
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super(MuJsonTransfer, self).__init__()
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def update_all_user(self, dt_transfer):
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import json
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rows = None
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config_path = "mudb.json"
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with open(config_path, 'r+') as f:
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rows = shell.parse_json_in_str(f.read().decode('utf8'))
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for row in rows:
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if "port" in row:
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port = row["port"]
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if port in dt_transfer:
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row["u"] += dt_transfer[port][0]
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row["d"] += dt_transfer[port][1]
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if rows:
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output = json.dumps(rows, sort_keys=True, indent=4, separators=(',', ': '))
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with open(config_path, 'w') as f:
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f.write(output)
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def pull_db_all_user(self):
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rows = None
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config_path = "mudb.json"
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with open(config_path, 'r+') as f:
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rows = shell.parse_json_in_str(f.read().decode('utf8'))
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return rows
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