oauth.py 文件源码

def encode_params(self, base_url, method, params):
        params = params.copy()

        if self.token:
            params['oauth_token'] = self.token

        params['oauth_consumer_key'] = self.consumer_key
        params['oauth_signature_method'] = 'HMAC-SHA1'
        params['oauth_version'] = '1.0'
        params['oauth_timestamp'] = str(int(time()))
        params['oauth_nonce'] = str(getrandbits(64))

        enc_params = urlencode_noplus(sorted(params.items()))

        key = self.consumer_secret + "&" + urllib_parse.quote(self.token_secret, safe='~')

        message = '&'.join(
            urllib_parse.quote(i, safe='~') for i in [method.upper(), base_url, enc_params])

        signature = (base64.b64encode(hmac.new(
                    key.encode('ascii'), message.encode('ascii'), hashlib.sha1)
                                      .digest()))
        return enc_params + "&" + "oauth_signature=" + urllib_parse.quote(signature, safe='~')