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sessions.py
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sessions.py
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# -*- coding: utf-8 -*-
import copy
import pickle
from datetime import datetime, timedelta
from pymongo import MongoClient, ReadPreference
from bson.objectid import ObjectId
from bson.timestamp import Timestamp
from werkzeug.contrib.sessions import SessionStore, Session
import db_util
SES_EXP = 14 * 24 * 60 * 60 # 14 days in seconds
SES_SHORT = 30 * 60 # 30 minutes in seconds
#class MongoSession(Session):
#def __init__(self, data=None, sid=None, new=False):
#Session.__init__(self, data, sid, new)
def add_mongo_id(obj, objidkeys = ['_id', u'_id',]):
if isinstance(obj, str) or isinstance(obj, unicode):
try:
if len(obj) == 24:
obj = ObjectId(obj)
except:
pass
d = None
try:
d = datetime.strptime(obj, "%Y-%m-%d %H:%M:%S.%F")
except:
try:
d = datetime.strptime(obj, "%Y-%m-%d %H:%M:%S")
except:
try:
d = datetime.strptime(obj, "%Y-%m-%d")
except:
d = None
if d:
obj = d
return obj
elif isinstance(obj, Session):
for k in obj.keys():
if k in objidkeys and obj[k] is None:
obj[k] = ObjectId()
obj[k] = add_mongo_id(obj[k])
elif isinstance(obj, list):
for i in obj:
obj[obj.index(i)] = add_mongo_id(i)
return obj
def remove_mongo_id(obj):
if isinstance(obj, ObjectId):
obj = str(obj)
elif isinstance(obj, Timestamp):
obj = obj.as_datetime().strftime("%Y-%m-%d %H:%M:%S")
elif isinstance(obj, datetime):
obj = obj.strftime("%Y-%m-%d %H:%M:%S")
elif isinstance(obj, dict):
for k in obj.keys():
obj[k] = remove_mongo_id(obj[k])
elif isinstance(obj, list):
for i in obj:
obj[obj.index(i)] = remove_mongo_id(i)
return obj
class MongodbSessionStore(SessionStore):
def __init__(self, session_class=None, host=None, port=None, replicaset=None, db=None, collection=None):
SessionStore.__init__(self, session_class)
self.host = host
self.port = port
self.replicaset = replicaset
self.db_name = db
self.collection_name = collection
self.db = None
self.collection = None
self.client = None
self.mongo_init()
def mongo_init(self):
if self.client and not self.client.alive():
self.client.close()
self.client = None
if self.client is None:
if self.replicaset and len(self.replicaset)>0:
self.client = MongoClient(self.host, self.port, slave_okay=True, replicaset=str(self.replicaset), read_preference = ReadPreference.PRIMARY)
else:
self.client = MongoClient(self.host, self.port, slave_okay=True)
if self.client is None :
raise Exception('mongodb session store client failed: host:%s,port:%d' % (self.host, self.port))
if self.client and self.db_name and len(self.db_name)>0 and self.db_name in self.client.database_names():
self.db = self.client[self.db_name]
if self.collection_name and self.db and len(self.collection_name)>0 and self.collection_name in self.db.collection_names():
self.collection = self.db[self.collection_name]
if self.db is None or self.collection is None:
raise Exception('mongodb session store init failed: db:%s,collection:%s' % (self.db_name, self.collection_name))
def is_valid_key(self, key):
ret = False
try:
oid = ObjectId(key)
ret = True
except:
pass
return ret
def generate_key(self, salt=None):
return str(ObjectId())
def new(self, data):
if isinstance(data, dict):
data['session_timestamp'] = datetime.now()
return self.session_class(data, self.generate_key(), True)
else:
raise Exception('data must be dict type')
#def update(self, sid, data):
#if isinstance(data, dict):
#data['session_timestamp'] = datetime.now()
#return self.session_class(data, sid, False)
#else:
#raise Exception('data must be dict type')
def save(self, session):
self.mongo_init()
session['_id'] = ObjectId(session.sid)
session['session_timestamp'] = datetime.now()
self.collection.save(session)
def delete(self, session):
_id = ObjectId(session.sid)
self.delete_data(_id)
def delete_data(self, _id):
self.mongo_init()
try:
self.collection.remove({'_id':_id})
except:
pass
def get(self, sid):
ret = None
data = self.get_data(sid)
if data:
ret = self.session_class(data, sid, False)
return ret
def get_data(self, sid):
self.mongo_init()
if not self.is_valid_key(sid):
return None
seconds = int(db_util.gConfig['authorize_platform']['session']['session_age'])
start_time = datetime.now() - timedelta(seconds=seconds)
rec = self.collection.find_one({'_id':ObjectId(sid), 'session_timestamp':{"$gt":start_time}})
return rec
def get_data_by_username(self, sid, username):
self.mongo_init()
if not self.is_valid_key(sid):
return None
seconds = int(db_util.gConfig['authorize_platform']['session']['session_age'])
start_time = datetime.now() - timedelta(seconds=seconds)
rec = self.collection.find_one({'_id':ObjectId(sid), 'username':username, 'session_timestamp':{"$gt":start_time}})
return rec
def get_list_by_username(self, username):
ret = []
self.mongo_init()
seconds = int(db_util.gConfig['authorize_platform']['session']['session_age'])
start_time = datetime.now() - timedelta(seconds=seconds)
cur = self.collection.find({ 'username':username, 'session_timestamp':{"$gt":start_time}})
for i in cur:
ret.append(i)
return ret
def get_data_by_username_password(self, sid, username, password):
self.mongo_init()
if not self.is_valid_key(sid):
return None
seconds = int(db_util.gConfig['authorize_platform']['session']['session_age'])
start_time = datetime.now() - timedelta(seconds=seconds)
rec = self.collection.find_one({'_id':ObjectId(sid), 'username':username, 'password':password, 'session_timestamp':{"$gt":start_time}})
return rec
def list(self):
ret = []
self.mongo_init()
seconds = int(db_util.gConfig['authorize_platform']['session']['session_age'])
start_time = datetime.now() - timedelta(seconds=seconds)
cur = self.collection.find({'session_timestamp':{"$gt":start_time}})
for i in cur:
ret.append(i)
return ret
#def check_if_expired(self, now, data):
#ret = False
#second = int(db_util.gConfig['authorize_platform']['session']['session_age'])
#if data:
#if (now - data['session_timestamp']).seconds > second:
#ret = True
#return ret
def delete_expired_list(self):
seconds = int(db_util.gConfig['authorize_platform']['session']['session_age'])
start_time = datetime.now() - timedelta(seconds=seconds)
self.mongo_init()
try:
self.collection.remove({'session_timestamp':{"$lt":start_time}})
#ret = list(self.collection.find({'_id':{"$lt":dummy_id}}))
#print(len(ret))
except:
raise
def delete_by_id(self, id):
ids = []
if isinstance(id, str):
ids.append(ObjectId(id))
if isinstance(id, list):
ids = [ObjectId(i) for i in id]
self.collection.remove({'_id':{'$in':ids}})
#if __name__=="__main__":
#db_util.init_global()
#ss = MongodbSessionStore(host=db_util.gConfig['authorize_platform']['mongodb']['host'],
#port=int(db_util.gConfig['authorize_platform']['mongodb']['port']),
#replicaset=db_util.gConfig['authorize_platform']['mongodb']['replicaset'],
#db = db_util.gConfig['authorize_platform']['mongodb']['database'],
#collection = db_util.gConfig['authorize_platform']['mongodb']['collection_session'],
#)
#ss.delete_expired_list()