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'''
Created on Jan 31, 2011
@author: leifj
'''
import httplib2
from urllib import quote_plus
import logging
from pprint import pformat
import os
import tempfile
from lxml import etree
from meetingtools.site_logging import logger
import lxml
from django.http import HttpResponseRedirect
class ACPException(Exception):
def __init__(self, value):
self.value = value
def __str__(self):
return etree.tostring(self.value)
def _first_or_none(x):
if not x:
return None
return x[0]
class ACPResult():
def __init__(self,content):
self.et = etree.fromstring(content)
self.status = _first_or_none(self.et.xpath('//status'))
def is_error(self):
return self.status_code() != 'ok'
def status_code(self):
return self.status.get('code')
def subcode(self):
return self.status.get('subcode')
def exception(self):
raise ACPException,self.status
def get_principal(self):
logger.debug(lxml.etree.tostring(self.et))
return _first_or_none(self.et.xpath('//principal'))
def _enc(v):
ev = v
if isinstance(ev,str) or isinstance(ev,unicode):
ev = ev.encode('iso-8859-1')
return ev
def _getset(d,key,value=None):
if value:
if d.has_key(key):
return d[key]
else:
return None
else:
d[key] = value
class ACPClient():
def __init__(self,url,username=None,password=None,cache=True):
self.url = url
self.session = None
if username and password:
self.login(username,password)
if cache:
self._cache = {'login':{},'group':{}}
def request(self,method,p={},raise_error=False):
u = []
u.append("action=%s" % method)
if self.session:
u.append("session=%s" % self.session)
for k,v in p.items():
value = v
if type(v) == int:
value = "%d" % value
u.append('%s=%s' % (k,quote_plus(value.encode("utf-8"))))
url = self.url + '?' + '&'.join(u)
h = httplib2.Http(tempfile.gettempdir()+os.sep+".cache");
logging.debug(url)
resp, content = h.request(url, "GET")
logging.debug(pformat(resp))
logging.debug(pformat(content))
if resp.status != 200:
raise ACPException,resp.reason
if resp.has_key('set-cookie'):
cookie = resp['set-cookie']
if cookie:
avp = cookie.split(";")
if len(avp) > 0:
av = avp[0].split('=')
self.session = av[1]
r = ACPResult(content)
if r.is_error() and raise_error:
raise r.exception()
return r;
def redirect_to(self,url):
if self.session:
return HttpResponseRedirect("%s?session=%s" % (url,self.session))
else:
return HttpResponseRedirect(url)
def login(self,username,password):
result = self.request('login',{'login':username,'password':password})
if result.is_error():
raise result.exception()
return result
def find_or_create_principal(self,key,value,t,d):
if not self._cache.has_key(t):
self._cache[t] = {}
cache = self._cache[t]
# lxml etree Elements are not picklable
p = None
if not cache.has_key(key):
p = self._find_or_create_principal(key,value,t,d)
cache[key] = etree.tostring(p)
else:
p = etree.parse(cache[key])
return p
def find_principal(self,key,value,t):
return self.find_or_create_principal(key,value,t,None)
def _find_or_create_principal(self,key,value,t,d):
result = self.request('principal-list',{'filter-%s' % key: value,'filter-type': t}, True)
principal = result.get_principal()
if result.is_error():
if result.status_code() != 'no_data':
result.exception()
elif principal and d:
d['principal-id'] = principal.get('principal-id')
rp = principal
if d:
update_result = self.request('principal-update',d)
rp = update_result.get_principal()
if not rp:
rp = principal
return rp
def find_builtin(self,t):
result = self.request('principal-list', {'filter-type': t}, True)
return result.get_principal()
def find_group(self,name):
result = self.request('principal-list',{'filter-name':name,'filter-type':'group'},True)
return result.get_principal()
def find_user(self,login):
return self.find_principal("login", login, "user")
def add_remove_member(self,principal_id,group_id,is_member):
m = "0"
if is_member:
m = "1"
self.request('group-membership-update',{'group-id': group_id, 'principal-id': principal_id,'is-member':m},True)
def add_member(self,principal_id,group_id):
return self.add_remove_member(principal_id, group_id, True)
def remove_member(self,principal_id,group_id):
return self.add_remove_member(principal_id, group_id, False)
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