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# -*- coding: utf-8 -*-
# Scratched from http://is.gd/g4sZT
import UserDict
from Cookie import BaseCookie
class Cookies(UserDict.DictMixin):
def __init__(self,handler,**policy):
self.response = handler.response
self._in = handler.request.cookies
self.policy = policy
if 'secure' not in policy and handler.request.environ.get('HTTPS', '').lower() in ['on', 'true']:
policy['secure']=True
self._out = {}
def __getitem__(self, key):
if key in self._out:
return self._out[key]
if key in self._in:
return self._in[key]
raise KeyError(key)
def __setitem__(self, key, item):
self._out[key] = item
self.set_cookie(key, item, **self.policy)
def __contains__(self, key):
return key in self._in or key in self._out
def keys(self):
return self._in.keys() + self._out.keys()
def __delitem__(self, key):
if key in self._out:
del self._out[key]
self.unset_cookie(key)
if key in self._in:
del self._in[key]
p = {}
if 'path' in self.policy: p['path'] = self.policy['path']
if 'domain' in self.policy: p['domain'] = self.policy['domain']
self.delete_cookie(key, **p)
#begin WebOb functions
def set_cookie(self, key, value='', max_age=None,
path='/', domain=None, secure=None, httponly=False,
version=None, comment=None):
"""
Set (add) a cookie for the response
"""
cookies = BaseCookie()
cookies[key] = value
for var_name, var_value in [
('max-age', max_age),
('path', path),
('domain', domain),
('secure', secure),
('HttpOnly', httponly),
('version', version),
('comment', comment),
]:
if var_value is not None and var_value is not False:
cookies[key][var_name] = str(var_value)
if max_age is not None:
cookies[key]['expires'] = max_age
header_value = cookies[key].output(header='').lstrip()
self.response.headers._headers.append(('Set-Cookie', header_value))
def delete_cookie(self, key, path='/', domain=None):
"""
Delete a cookie from the client. Note that path and domain must match
how the cookie was originally set.
This sets the cookie to the empty string, and max_age=0 so
that it should expire immediately.
"""
self.set_cookie(key, '', path=path, domain=domain,
max_age=0)
def unset_cookie(self, key):
"""
Unset a cookie with the given name (remove it from the
response). If there are multiple cookies (e.g., two cookies
with the same name and different paths or domains), all such
cookies will be deleted.
"""
existing = self.response.headers.get_all('Set-Cookie')
if not existing:
raise KeyError(
"No cookies at all have been set")
del self.response.headers['Set-Cookie']
found = False
for header in existing:
cookies = BaseCookie()
cookies.load(header)
if key in cookies:
found = True
del cookies[key]
header = cookies.output(header='').lstrip()
if header:
self.response.headers.add('Set-Cookie', header)
if not found:
raise KeyError(
"No cookie has been set with the name %r" % key)
#end WebOb functions
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