[Python-modules-commits] [python-social-auth] 295/322: add weixin backends

[Wolfgang Borgert]

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debacle pushed a commit to tag v0.2.10
in repository python-social-auth.

commit d5a62c84ea0878e3fc309f8a6e999f5992a2b815
Author: duoduo369 <duoduo3369 at gmail.com>
Date:   Sun May 17 15:40:01 2015 +0800

    add weixin backends
    
    Weixin is Tencent's icq, in China there are million's people use it.
---
 social/backends/weixin.py | 99 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)

diff --git a/social/backends/weixin.py b/social/backends/weixin.py
new file mode 100644
index 0000000..5170caf
--- /dev/null
+++ b/social/backends/weixin.py
@@ -0,0 +1,99 @@
+# -*- coding: utf-8 -*-
+# author:duoduo3369 at gmail.com  https://github.com/duoduo369
+"""
+Weixin OAuth2 backend
+"""
+from requests import HTTPError
+
+from social.backends.oauth import BaseOAuth2
+from social.exceptions import AuthCanceled, AuthUnknownError
+
+
+class WeixinOAuth2(BaseOAuth2):
+    """Weixin OAuth authentication backend"""
+    name = 'weixin'
+    ID_KEY = 'openid'
+    AUTHORIZATION_URL = 'https://open.weixin.qq.com/connect/qrconnect'
+    ACCESS_TOKEN_URL = 'https://api.weixin.qq.com/sns/oauth2/access_token'
+    ACCESS_TOKEN_METHOD = 'POST'
+    REDIRECT_STATE = False
+    EXTRA_DATA = [
+        ('nickname', 'username'),
+        ('headimgurl', 'profile_image_url'),
+    ]
+
+    def get_user_details(self, response):
+        """Return user details from Weixin. API URL is:
+        https://api.weixin.qq.com/sns/userinfo
+        """
+        if self.setting('DOMAIN_AS_USERNAME'):
+            username = response.get('domain', '')
+        else:
+            username = response.get('nickname', '')
+        profile_image_url = response.get('headimgurl', '')
+        return {'username': username, 'profile_image_url': profile_image_url}
+
+    def user_data(self, access_token, *args, **kwargs):
+        data = self.get_json('https://api.weixin.qq.com/sns/userinfo',
+                             params={'access_token': access_token,
+                                     'openid': kwargs['response']['openid']})
+        nickname = data.get('nickname')
+        if nickname:
+            # weixin api has some encode bug, here need handle
+            data['nickname'] = nickname.encode('raw_unicode_escape').decode('utf-8')
+        return data
+
+
+    def auth_params(self, state=None):
+        appid, secret = self.get_key_and_secret()
+        params = {
+            'appid': appid,
+            'redirect_uri': self.get_redirect_uri(state)
+        }
+        if self.STATE_PARAMETER and state:
+            params['state'] = state
+        if self.RESPONSE_TYPE:
+            params['response_type'] = self.RESPONSE_TYPE
+        return params
+
+    def auth_complete_params(self, state=None):
+        appid, secret = self.get_key_and_secret()
+        return {
+            'grant_type': 'authorization_code',  # request auth code
+            'code': self.data.get('code', ''),  # server response code
+            'appid': appid,
+            'secret': secret,
+            'redirect_uri': self.get_redirect_uri(state)
+        }
+
+    def refresh_token_params(self, token, *args, **kwargs):
+        appid, secret = self.get_key_and_secret()
+        return {
+            'refresh_token': token,
+            'grant_type': 'refresh_token',
+            'appid': appid,
+            'secret': secret
+        }
+
+    def auth_complete(self, *args, **kwargs):
+        """Completes loging process, must return user instance"""
+        self.process_error(self.data)
+        try:
+            response = self.request_access_token(
+                self.ACCESS_TOKEN_URL,
+                data=self.auth_complete_params(self.validate_state()),
+                headers=self.auth_headers(),
+                method=self.ACCESS_TOKEN_METHOD
+            )
+        except HTTPError as err:
+            if err.response.status_code == 400:
+                raise AuthCanceled(self)
+            else:
+                raise
+        except KeyError:
+            raise AuthUnknownError(self)
+        if 'errcode' in response:
+            raise AuthCanceled(self)
+        self.process_error(response)
+        return self.do_auth(response['access_token'], response=response,
+                            *args, **kwargs)

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