celery不再使用pickle，避免可能的安全风险

oj/local_settings.py

@@ -30,7 +30,8 @@ REDIS_QUEUE = {
 
 # for celery
 BROKER_URL = 'redis://%s:%s/%s' % (REDIS_QUEUE["host"], str(REDIS_QUEUE["port"]), str(REDIS_QUEUE["db"]))
-ACCEPT_CONTENT = ['json']
+CELERY_ACCEPT_CONTENT = ["json"]
+CELERY_TASK_SERIALIZER = "json"
 
 
 DEBUG = True

oj/server_settings.py

@@ -39,7 +39,8 @@ REDIS_QUEUE = {
 
 # for celery
 BROKER_URL = 'redis://%s:%s/%s' % (REDIS_QUEUE["host"], str(REDIS_QUEUE["port"]), str(REDIS_QUEUE["db"]))
-ACCEPT_CONTENT = ['json']
+CELERY_ACCEPT_CONTENT = ["json"]
+CELERY_TASK_SERIALIZER = "json"
 
 
 DEBUG = False