factory/apps/utils/decorators.py

55 lines
1.9 KiB
Python

import logging
from functools import wraps
from apps.utils.tasks import send_mail_task
import traceback
import hashlib
import json
from django.core.cache import cache
from rest_framework.exceptions import ParseError
from rest_framework.response import Response
myLogger = logging.getLogger('log')
def auto_log(name='', raise_exception=True, send_mail=False):
def decorate(func):
@wraps(func)
def wrapper(*args, **kwargs):
try:
real_func = func(*args, **kwargs)
return real_func
except Exception:
myLogger.error(name, exc_info=True)
if send_mail:
send_mail_task.delay(message=traceback.format_exc())
if raise_exception:
raise
return wrapper
return decorate
def idempotent(seconds=4):
def decorate(func):
@wraps(func)
def wrapper(*args, **kwargs):
request = args[1]
rdata = dict(request.data)
rdata['request_userid'] = getattr(request, 'user').id
rdata['request_path'] = getattr(request, 'path')
payload = json.dumps(rdata, sort_keys=True, ensure_ascii=False, default=str)
hash_k = hashlib.sha256(payload.encode('utf-8')).hexdigest()
hash_v_e = cache.get(hash_k, None)
if hash_v_e is None:
cache.set(hash_k, 'o', seconds)
real_func = func(*args, **kwargs)
if hasattr(real_func, 'data'):
cache.set(hash_k, real_func.data, seconds)
else:
cache.delete(hash_k)
return real_func
elif hash_v_e == 'o': # 说明请求正在处理
raise ParseError(f'请求忽略,请{seconds}秒后重试')
return Response(hash_v_e)
return wrapper
return decorate