[hotfix] add naver email, nickname fields(optinal). (#153)

* [hotfix] add naver email, nickname fields(optinal).
if require email and nickname, must check its.

* Use Dict.get method in user's information of responses.

fastapi_sso/sso/naver.py

@@ -25,7 +25,8 @@ async def get_discovery_document(self) -> DiscoveryDocument:
     async def openid_from_response(self, response: dict, session: Optional["httpx.AsyncClient"] = None) -> OpenID:
         return OpenID(
             id=response["response"]["id"],
-            display_name=response["response"]["nickname"],
-            picture=response["response"]["profile_image"] or None,
+            email=response["response"].get("email"),
+            display_name=response["response"].get("nickname"),
+            picture=response["response"].get("profile_image"),
             provider=self.provider,
         )

tests/test_openid_responses.py

@@ -30,8 +30,8 @@
     ),
     (
         NaverSSO,
-        {"response": {"nickname": "test", "profile_image": "https://myimage", "id": "test"}},
-        OpenID(id="test", display_name="test", provider="naver", picture="https://myimage"),
+        {"response": {"nickname": "test", "profile_image": "https://myimage", "id": "test", "email": "test@example.com"}},
+        OpenID(id="test", email="test@example.com", display_name="test", provider="naver", picture="https://myimage"),
     ),
     (
         MicrosoftSSO,