昔、書いた[Google App Engine][twitter][oauth]ログインを自作するから少し仕様が変わったみたいなので、少し見やすくして、新しくクラスを作ってみた。
//twitter.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2007 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from google.appengine.api import urlfetch
import datetime
import time
import random
import urllib
import hmac
import hashlib
import logging
class LoginTwitter(object):
def __init__(self,consumer_secret,consumer_key,oauth_callback_url):
self.consumer_secret = consumer_secret
self.method = "POST"
self.request_token_url = "https://api.twitter.com/oauth/request_token"
self.oauth_authenticate_url = "https://api.twitter.com/oauth/authenticate"
self.prms = {
"oauth_consumer_key":consumer_key,
"oauth_nonce":LoginTwitter._nonce(),
"oauth_signature_method":'HMAC-SHA1',
"oauth_version":'1.0',
"oauth_timestamp":LoginTwitter._timeStamp(),
"oauth_callback":oauth_callback_url
}
self.prms['oauth_signature'] = self._signature()
self._request()
@classmethod
def _timeStamp(cls):
_d = datetime.datetime.today()
_d = time.mktime(_d.timetuple())
_d = str(int(_d))
return _d
@classmethod
def _nonce(cls):
_s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789[]{}!$%&'()-^\:;*+><"
_l = list(_s)
_n = ""
for i in range(20):
_x = random.randint(0,len(_l)-1)
_n += _l[_x]
return _n
def _signature(self):
_prms_keys = sorted(self.prms.keys())
_prms = ''
for i in _prms_keys:
_prms = _prms + "&" + i + "=" + urllib.quote_plus(self.prms[i])
else:
_prms = _prms[1:]
_prms = urllib.quote_plus(self.method) + "&" + urllib.quote_plus(self.request_token_url) + "&" + urllib.quote_plus(_prms)
_h = hmac.new("%s&%s" % (urllib.quote(self.consumer_secret), urllib.quote("")), _prms, hashlib.sha1)
_sig = _h.digest().encode("base64").strip()
return _sig
def _request(self):
if self.method == 'POST':
_headers = {
'Content-Type': 'application/x-www-form-urlencoded'
}
_prms_keys = sorted(self.prms.keys())
_prms = ''
for i in _prms_keys:
_prms = _prms + "," + i + "=\"" + urllib.quote_plus(self.prms[i]) + "\""
else:
_prms = _prms[1:]
_prms = "OAuth " + _prms
_headers["Authorization"] = _prms
_result = urlfetch.fetch(
url = self.request_token_url,
payload = urllib.urlencode({"oauth_callback":self.prms["oauth_callback"]}),
method = urlfetch.POST,
headers = _headers
)
logging.info(_result.status_code)
logging.info(_result.content)呼び出しはいたって簡単。from twitter import LoginTwitter consumer_secret consumer_key oauth_callback_url LoginTwitter(consumer_secret,consumer_key,oauth_callback_url)まだ全部の処理が書き終わっていないので、改訂が入るかも。
