Question

我正在将来自Google的xoauth.py脚本集成到我的django应用程序中，因为我需要从我的应用程序访问用户的Gmail邮件。我的目的是在用户想要访问此功能并存储授权令牌供以后使用时创建密钥/密钥对。这是一个两步操作：获取验证URL（用户获取验证码）并获取授权令牌。第二步对我失败，并带有以下消息：

Request Method: GET
Request URL: http://localhost:8000/authorization_token?user=iferca@ecoresol.com&code=ycH19iaufCHoJ7APVkBGe_Hu&key=4/nj5s6sLBx-DKWUYJlUzERnngOO_6&token=wwvSU3ws448HR1gqiN7NxTh7

Traceback:
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/Users/iferca/devel/gmail/workspace/imapsrv/imapsrv/../imapsrv/gdg/views.py" in request_authoization_token
  27.     response = xoauth.generateAuthorizationTokenFromVerificationCode(user, code,         request_key, request_secret)
File "/Users/iferca/devel/gmail/workspace/imapsrv/imapsrv/../imapsrv/gdg/xoauth.py" in generateAuthorizationTokenFromVerificationCode
  512.         google_accounts_url_generator)
File "/Users/iferca/devel/gmail/workspace/imapsrv/imapsrv/../imapsrv/gdg/xoauth.py" in    GetAccessToken
  316.                                      request_token.secret)
File "/Users/iferca/devel/gmail/workspace/imapsrv/imapsrv/../imapsrv/gdg/xoauth.py" in GenerateOauthSignature
  200.   return GenerateHmacSha1Signature(base_string, key)
File "/Users/iferca/devel/gmail/workspace/imapsrv/imapsrv/../imapsrv/gdg/xoauth.py" in GenerateHmacSha1Signature
  194.   digest = hmac.new(key, text, hashlib.sha1)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hmac.py" in new
  133.     return HMAC(key, msg, digestmod)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hmac.py" in __init__
  72.         self.outer.update(key.translate(trans_5C))

Exception Type: TypeError at /authorization_token
Exception Value: character mapping must return integer, None or unicode

相同的脚本在命令行中运行良好。我甚至测试了使用python控制台手动抛出错误的行，我无法重现错误，如下所示：

>>> key = "anonymous&wwvSU3ws448HR1gqiN7NxTh7"
>>> trans_5C = "".join ([chr (x ^ 0x5C) for x in xrange(256)])
>>> trans_5C
'\\]^_XYZ[TUVWPQRSLMNOHIJKDEFG@ABC|}~\x7fxyz{tuvwpqrslmnohijkdefg`abc\x1c\x1d\x1e\x1f\x18\x19\x1a\x1b\x14\x15\x16\x17\x10\x11\x12\x13\x0c\r\x0e\x0f\x08\t\n\x0b\x04\x05\x06\x07\x00\x01\x02\x03<=>?89:;45670123,-./()*+$%&\' !"#\xdc\xdd\xde\xdf\xd8\xd9\xda\xdb\xd4\xd5\xd6\xd7\xd0\xd1\xd2\xd3\xcc\xcd\xce\xcf\xc8\xc9\xca\xcb\xc4\xc5\xc6\xc7\xc0\xc1\xc2\xc3\xfc\xfd\xfe\xff\xf8\xf9\xfa\xfb\xf4\xf5\xf6\xf7\xf0\xf1\xf2\xf3\xec\xed\xee\xef\xe8\xe9\xea\xeb\xe4\xe5\xe6\xe7\xe0\xe1\xe2\xe3\x9c\x9d\x9e\x9f\x98\x99\x9a\x9b\x94\x95\x96\x97\x90\x91\x92\x93\x8c\x8d\x8e\x8f\x88\x89\x8a\x8b\x84\x85\x86\x87\x80\x81\x82\x83\xbc\xbd\xbe\xbf\xb8\xb9\xba\xbb\xb4\xb5\xb6\xb7\xb0\xb1\xb2\xb3\xac\xad\xae\xaf\xa8\xa9\xaa\xab\xa4\xa5\xa6\xa7\xa0\xa1\xa2\xa3'
>>> key.translate(trans_5C)
'=232%13)/z++*\x0f\to+/hhd\x14\x0em;-5\x12k\x12$\x084k'

我在脚本中添加了两个函数，供我的Web应用程序用作这两个步骤的接口，功能如下：

def requestTokenVerificationURL(user):
    if not user:
        raise Exception('requestTokenVerificationURL invoked without user argument')
    scope = 'https://mail.google.com/'
    nonce = None
    timestamp = None
    consumer_key = 'anonymous'
    consumer_secret = 'anonymous'
    consumer = OAuthEntity(consumer_key, consumer_secret)
    google_accounts_url_generator = GoogleAccountsUrlGenerator(user)
    authurl_token = GenerateRequestTokenAndAuthorizationURL(consumer, scope, nonce,
        timestamp, google_accounts_url_generator)
    return {'request_token_key': authurl_token['token'].key,
            'request_token_secret': authurl_token['token'].secret,
            'authorization_url': authurl_token['authorization_url'].strip()}


def generateAuthorizationTokenFromVerificationCode(user, verificationCode, request_key, request_secret):
    consumer_key = 'anonymous'
    consumer_secret = 'anonymous'
    consumer = OAuthEntity(consumer_key, consumer_secret)
    request_token = OAuthEntity(request_key, request_secret)
    google_accounts_url_generator = GoogleAccountsUrlGenerator(user)
    access_token = GetAccessToken(consumer, request_token, verificationCode,
        google_accounts_url_generator)
    return access_token

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Answer 1

我发现了问题！

问题与请求令牌和秘密来回传递给客户端以及在获取GET或POST请求的过程中django返回unicode而不是字符串（str）这一事实有关。通过将unicode转换为字符串请求令牌/机密，然后将它们传递给xoauth.py函数，解决了这个问题。

希望这可以为其他人节省3天的测试时间！

将xoauth.py脚本集成到我的webapp中

1 个答案: