Это может быть старый вопрос, но я столкнулся с той же проблемой, что в Python нет встроенной поддержки сессий. Я написал простой обработчик сеанса, который может быть полезен для кого-то:
#!/usr/bin/python
# -*- coding: utf-8 -*-
import tempfile
import hashlib
import os
import time
import random
import errno
import ast
import pprint
import fcntl
class CGISession:
__sessionfile = ''
__newid = ''
__date = ''
__tmp = ''
__pid = ''
__time = ''
__rand = ''
__pp = pprint.PrettyPrinter()
__fs = ''
def __init__(
self,
id=None,
directory=None,
hash='md5',
):
if directory is None:
self.__directory = tempfile.gettempdir()
else:
if not os.path.exists(directory):
try:
os.makedirs(directory)
except OSError, error:
if error.errno != errno.EEXIST:
raise
self.__directory = directory
if hash not in ['md5', 'sha256', 'sha512']:
self.__hash = 'md5'
else:
self.__hash = hash
if id is None:
self.__id = self.__genSessionID()
self.__fs = open(os.path.join(self.__directory,
'pycgiession_{0}'.format(self.__id)), 'w')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__fs.write('{}')
self.__fs.close()
self.__sessionfile = os.path.join(self.__directory,
'pycgiession_{0}'.format(self.__id))
os.chmod(self.__sessionfile, 0640)
else:
try:
open(os.path.join(self.__directory,
'pycgiession_{0}'.format(os.path.basename(id))),
'r').close()
self.__id = os.path.basename(id)
self.__sessionfile = os.path.join(self.__directory,
'pycgiession_{0}'.format(self.__id))
os.chmod(self.__sessionfile, 0640)
except IOError, error:
if error.errno == errno.ENOENT:
self.__id = self.__genSessionID()
self.__fs = open(os.path.join(self.__directory,
'pycgiession_{0}'.format(self.__id)), 'w')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__fs.write('{}')
self.__fs.close()
self.__sessionfile = os.path.join(self.__directory,
'pycgiession_{0}'.format(self.__id))
os.chmod(self.__sessionfile, 0640)
else:
raise
def __genSessionID(self):
self.__pid = str(os.getpid())
self.__time = ''.join(map(str, time.gmtime()[0:]))
self.__rand = str(random.random())
if self.__hash == 'sha256':
sha256 = hashlib.sha256()
sha256.update(self.__pid)
sha256.update(self.__time)
sha256.update(self.__rand)
self.__newid = sha256.hexdigest()
elif self.__hash == 'sha512':
sha512 = hashlib.sha512()
sha512.update(self.__pid)
sha512.update(self.__time)
sha512.update(self.__rand)
self.__newid = sha512.hexdigest()
else:
md5 = hashlib.md5()
md5.update(self.__pid)
md5.update(self.__time)
md5.update(self.__rand)
self.__newid = md5.hexdigest()
return self.__newid
def getID(self):
return self.__id
def setParam(self, key, value):
self.__fs = open(self.__sessionfile, 'r')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__date = self.__fs.readlines()
self.__fs.close()
self.__fs = open(self.__sessionfile, 'w')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__date = ast.literal_eval(self.__date[0])
self.__date[key] = value
self.__fs.write(self.__pp.pformat(self.__date))
self.__fs.close()
def getParam(self, key):
self.__fs = open(self.__sessionfile, 'r')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__date = self.__fs.readline()
self.__fs.close()
self.__date = ast.literal_eval(self.__date)
try:
self.__date = self.__date[key]
return self.__date
except KeyError:
return None
def getAll(self):
self.__fs = open(self.__sessionfile, 'r')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__date = self.__fs.readlines()
self.__fs.close()
self.__date = ast.literal_eval(self.__date[0])
return self.__date
def delParam(self, key):
self.__fs = open(self.__sessionfile, 'r')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__date = self.__fs.readlines()
self.__fs.close()
self.__fs = open(self.__sessionfile, 'w')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__date = ast.literal_eval(self.__date[0])
try:
del self.__date[key]
except KeyError:
pass
self.__fs.write(self.__pp.pformat(self.__date))
self.__fs.close()
def clear(self):
self.__fs = open(self.__sessionfile, 'w')
fcntl.flock(self.__fs.fileno(), fcntl.LOCK_EX)
self.__fs.write('{}')
self.__fs.close()
def delete(self):
os.remove(self.__sessionfile)
Примеры:
>>> from CGISession import CGISession
>>> session = CGISession()
>>>
>>> session.getID()
'7e487c3c300126fddbecb37b041d66e3'
>>>
>>> session.setParam('name','A')
>>> session.setParam('friends',['C','D','E'])
>>>
>>> session.getParam('name')
'A'
>>> session.getParam('friends')
['C', 'D', 'E']
>>>
>>> session.delParam('name')
>>> session.delParam('friends')
>>>
>>> session.getParam('name')
>>> session.delParam('friends')
>>>
>>> session.delete()
>>>