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worker.py
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worker.py
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#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# vim: set et sw=4 ts=4 sts=4 ff=unix fenc=utf8:
# Author: Binux<i@binux.me>
# http://binux.me
# Created on 2014-08-09 14:43:13
import time
import datetime
import logging
import tornado.log
import tornado.ioloop
from tornado import gen
import config
from libs import utils
from libs.fetcher import Fetcher
logger = logging.getLogger('qiandao.worker')
class MainWorker(object):
def __init__(self):
self.running = False
if config.db_type == 'sqlite3':
import sqlite3_db as db
else:
import db
class DB(object):
user = db.UserDB()
tpl = db.TPLDB()
task = db.TaskDB()
tasklog = db.TaskLogDB()
self.db = DB
self.fetcher = Fetcher()
def __call__(self):
if self.running:
return
self.running = self.run()
def done(future):
self.running = None
success, failed = future.result()
if success or failed:
logger.info('%d task done. %d success, %d failed' % (success+failed, success, failed))
return
self.running.add_done_callback(done)
@gen.coroutine
def run(self):
running = []
success = 0
failed = 0
try:
for task in self.scan():
running.append(self.do(task))
if len(running) > 50:
logging.debug('scaned %d task, waiting...', len(running))
result = yield running[:10]
for each in result:
if each:
success += 1
else:
failed += 1
running = running[10:]
logging.debug('scaned %d task, waiting...', len(running))
result = yield running
for each in result:
if each:
success += 1
else:
failed += 1
except Exception as e:
logging.exception(e)
raise gen.Return((success, failed))
scan_fields = ('id', 'tplid', 'userid', 'init_env', 'env', 'session', 'last_success', 'last_failed', 'success_count', 'failed_count', 'last_failed_count', 'next', 'disabled', )
def scan(self):
return self.db.task.scan(fields=self.scan_fields)
@staticmethod
def failed_count_to_time(last_failed_count, interval=None):
if last_failed_count == 0:
next = 10 * 60
elif last_failed_count == 1:
next = 110 * 60
elif last_failed_count == 2:
next = 240 * 60
elif last_failed_count == 3:
next = 360 * 60
elif last_failed_count < 8:
next = 11 * 60 * 60
else:
next = None
if interval is None:
interval = 24 * 60 * 60
if next and next > interval / 2:
next = interval / 2
return next
@staticmethod
def fix_next_time(next, gmt_offset=-8*60):
date = datetime.datetime.utcfromtimestamp(next)
local_date = date - datetime.timedelta(minutes=gmt_offset)
if local_date.hour < 2:
next += 2 * 60 * 60
if local_date.hour > 21:
next -= 3 * 60 * 60
return next
@staticmethod
def is_tommorrow(next, gmt_offset=-8*60):
date = datetime.datetime.utcfromtimestamp(next)
now = datetime.datetime.utcnow()
local_date = date - datetime.timedelta(minutes=gmt_offset)
local_now = now - datetime.timedelta(minutes=gmt_offset)
local_tomorrow = local_now + datetime.timedelta(hours=24)
if local_date.day == local_tomorrow.day and not now.hour > 22:
return True
elif local_date.hour > 22:
return True
else:
return False
@gen.coroutine
def do(self, task):
user = self.db.user.get(task['userid'], fields=('id', 'email', 'email_verified', 'nickname'))
tpl = self.db.tpl.get(task['tplid'], fields=('id', 'userid', 'sitename', 'siteurl', 'tpl',
'interval', 'last_success'))
if task['disabled']:
self.db.tasklog.add(task['id'], False, msg='task disabled.')
self.db.task.mod(task['id'], next=None, disabled=1)
raise gen.Return(False)
if not user:
self.db.tasklog.add(task['id'], False, msg='no such user, disabled.')
self.db.task.mod(task['id'], next=None, disabled=1)
raise gen.Return(False)
if not tpl:
self.db.tasklog.add(task['id'], False, msg='tpl missing, task disabled.')
self.db.task.mod(task['id'], next=None, disabled=1)
raise gen.Return(False)
if tpl['userid'] and tpl['userid'] != user['id']:
self.db.tasklog.add(task['id'], False, msg='no permission error, task disabled.')
self.db.task.mod(task['id'], next=None, disabled=1)
raise gen.Return(False)
start = time.time()
try:
fetch_tpl = self.db.user.decrypt(0 if not tpl['userid'] else task['userid'], tpl['tpl'])
env = utils.ensure_dict(dict(
variables = self.db.user.decrypt(task['userid'], task['init_env']),
session = [],
))
new_env = yield self.fetcher.do_fetch(fetch_tpl, env)
variables = self.db.user.encrypt(task['userid'], new_env['variables'])
session = self.db.user.encrypt(task['userid'],
new_env['session'].to_json() if hasattr(new_env['session'], 'to_json') else new_env['session'])
# todo next not mid night
next = time.time() + max((tpl['interval'] if tpl['interval'] else 24 * 60 * 60), 30*60)
if tpl['interval'] is None:
next = self.fix_next_time(next)
# success feedback
self.db.tasklog.add(task['id'], success=True, msg=new_env['variables'].get('__log__'))
self.db.task.mod(task['id'],
last_success=time.time(),
last_failed_count=0,
success_count=task['success_count']+1,
env=variables,
session=session,
mtime=time.time(),
next=next)
self.db.tpl.incr_success(tpl['id'])
logger.info('taskid:%d tplid:%d successed! %.4fs', task['id'], task['tplid'], time.time()-start)
except Exception as e:
# failed feedback
next_time_delta = self.failed_count_to_time(task['last_failed_count'], tpl['interval'])
if next_time_delta:
disabled = False
next = time.time() + next_time_delta
else:
disabled = True
next = None
self.db.tasklog.add(task['id'], success=False, msg=str(e))
self.db.task.mod(task['id'],
last_failed=time.time(),
failed_count=task['failed_count']+1,
last_failed_count=task['last_failed_count']+1,
disabled = disabled,
mtime = time.time(),
next=next)
self.db.tpl.incr_failed(tpl['id'])
if task['success_count'] and task['last_failed_count'] and user['email_verified'] and user['email']\
and self.is_tommorrow(next):
try:
_ = yield utils.send_mail(to=user['email'], subject=u"%s - 签到失败%s" % (
tpl['sitename'], u' 已停止' if disabled else u""),
text=u"""
您的 %(sitename)s [ %(siteurl)s ] 签到任务，执行 %(cnt)d次 失败。%(disable)s
下一次重试在一天之后，为防止签到中断，给您发送这份邮件。
访问： http://%(domain)s/task/%(taskid)s/log 查看日志。
""" % dict(
sitename=tpl['sitename'] or u'未命名',
siteurl=tpl['siteurl'] or u'',
cnt=task['last_failed_count'] + 1,
disable=u"因连续多次失败，已停止。" if disabled else u"",
domain=config.domain,
taskid=task['id'],
), async_mode=True)
except Exception as e:
logging.error('send mail error: %r', e)
logger.error('taskid:%d tplid:%d failed! %r %.4fs', task['id'], task['tplid'], e, time.time()-start)
raise gen.Return(False)
raise gen.Return(True)
def task_failed(self, task, user, tpl, e):
pass
#if user['email'] and user['email_verified']:
#return utils.send_mail(to=user['email'],
#subject=u"%s - 签到失败提醒" % (tpl['sitename']),
#text=u"""
#您在 签到.today ( http://qiandao.today )
#""")
if __name__ == '__main__':
tornado.log.enable_pretty_logging()
worker = MainWorker()
io_loop = tornado.ioloop.IOLoop.instance()
tornado.ioloop.PeriodicCallback(worker, config.check_task_loop).start()
worker()
io_loop.start()