fix: Twitter API 404 when auth token not set

The previous official API is not usable when not logged in,
now we have two options, one is the possibly legacy API in
Fritter with a different endpoint and authorization token,
the other is the latest official public API for guests
(`/TweetResultByRestId`).
We chose the official public API since it seems to have the same ability
as the Fritter one, while providing clearer error messages.

Now, logged in users will still be using the previous API, while others
will use the public API.

Furthermore, in order to use the same feature flags for different APIs,
we merged the flags and found a sweet point.

close #81

nazurin/sites/twitter/api/web.py

@@ -16,18 +16,37 @@
 
 
 class Headers:
+    AUTHORIZATION = "Authorization"
     GUEST_TOKEN = "x-guest-token"
     CSRF_TOKEN = "x-csrf-token"
     AUTH_TYPE = "x-twitter-auth-type"
     RATE_LIMIT_LIMIT = "x-rate-limit-limit"
     RATE_LIMIT_RESET = "x-rate-limit-reset"
 
 
+class AuthorizationToken:
+    # From Fritter
+    GUEST = (
+        "Bearer AAAAAAAAAAAAAAAAAAAAAGHtAgAAAAAA%2Bx7ILXNILCqk"
+        "SGIzy6faIHZ9s3Q%3DQy97w6SIrzE7lQwPJEYQBsArEE2fC25caFwRBvAGi456G09vGR"
+    )
+    # Official
+    LOGGED_IN = (
+        "Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH"
+        "5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA"
+    )
+
+
+class TweetDetailAPI:
+    # From Fritter
+    GUEST = "3XDB26fBve-MmjHaWTUZxA/TweetDetail"
+    LOGGED_IN = "q94uRCEn65LZThakYcPT6g/TweetDetail"
+
+
 class WebAPI(BaseAPI):
     auth_token = AUTH_TOKEN
     headers = {
-        "Authorization": "Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH"
-        "5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA",
+        "Authorization": AuthorizationToken.GUEST,
         "Origin": "https://twitter.com",
         "Referer": "https://twitter.com",
         Headers.GUEST_TOKEN: "",
@@ -48,8 +67,10 @@ class WebAPI(BaseAPI):
     }
     features = {
         "blue_business_profile_image_shape_enabled": False,
+        "rweb_lists_timeline_redesign_enabled": True,
         "responsive_web_graphql_exclude_directive_enabled": True,
         "verified_phone_label_enabled": False,
+        "creator_subscriptions_tweet_preview_api_enabled": True,
         "responsive_web_graphql_timeline_navigation_enabled": True,
         "responsive_web_graphql_skip_user_profile_image_extensions_enabled": False,
         "tweetypie_unmention_optimization_enabled": True,
@@ -58,15 +79,17 @@ class WebAPI(BaseAPI):
         "graphql_is_translatable_rweb_tweet_is_translatable_enabled": False,
         "view_counts_everywhere_api_enabled": True,
         "longform_notetweets_consumption_enabled": True,
+        "responsive_web_twitter_article_tweet_consumption_enabled": False,
         "tweet_awards_web_tipping_enabled": False,
-        "freedom_of_speech_not_reach_fetch_enabled": False,
+        "freedom_of_speech_not_reach_fetch_enabled": True,
         "standardized_nudges_misinfo": True,
-        (
-            "tweet_with_visibility_results_" "prefer_gql_limited_actions_policy_enabled"
-        ): False,
+        "tweet_with_visibility_results_prefer_gql_limited_actions_policy_enabled": True,
         "interactive_text_enabled": True,
         "responsive_web_text_conversations_enabled": False,
         "longform_notetweets_richtext_consumption_enabled": False,
+        "longform_notetweets_rich_text_read_enabled": True,
+        "longform_notetweets_inline_media_enabled": True,
+        "responsive_web_media_download_video_enabled": False,
         "responsive_web_enhance_cards_enabled": False,
     }
 
@@ -81,7 +104,12 @@ def __init__(self):
 
     async def fetch(self, status_id: int) -> Illust:
         """Fetch & return tweet images and information."""
-        tweet = await self.tweet_detail(status_id)
+
+        if AUTH_TOKEN:
+            tweet = await self.tweet_detail(status_id)
+        else:
+            tweet = await self.tweet_result_by_rest_id(status_id)
+
         if "extended_entities" not in tweet:
             raise NazurinError("No photo found.")
         media = tweet["extended_entities"]["media"]
@@ -112,7 +140,16 @@ async def fetch(self, status_id: int) -> Illust:
 
     async def tweet_detail(self, tweet_id: str):
         logger.info("Fetching tweet {} from web API", tweet_id)
-        api = "https://twitter.com/i/api/graphql/1oIoGPTOJN2mSjbbXlQifA/TweetDetail"
+        api = "https://twitter.com/i/api/graphql/" + (
+            TweetDetailAPI.LOGGED_IN if AUTH_TOKEN else TweetDetailAPI.GUEST
+        )
+        self.headers.update(
+            {
+                Headers.AUTHORIZATION: AuthorizationToken.LOGGED_IN
+                if AUTH_TOKEN
+                else AuthorizationToken.GUEST
+            }
+        )
         variables = WebAPI.variables
         variables.update({"focalTweetId": tweet_id})
         params = {
@@ -129,6 +166,31 @@ async def tweet_detail(self, tweet_id: str):
             logger.info("{}", response)
             raise NazurinError(f"{msg} {error}") from error
 
+    async def tweet_result_by_rest_id(self, tweet_id: str):
+        logger.info("Fetching tweet {} from web API /TweetResultByRestId", tweet_id)
+        api = "https://twitter.com/i/api/graphql/0hWvDhmW8YQ-S_ib3azIrw/TweetResultByRestId"
+        variables = WebAPI.variables
+        variables.update({"tweetId": tweet_id})
+        params = {
+            "variables": json.dumps(variables),
+            "features": json.dumps(WebAPI.features),
+        }
+        # This API uses the same token as logged-in TweetDetail
+        self.headers.update({Headers.AUTHORIZATION: AuthorizationToken.LOGGED_IN})
+        await self._require_auth()
+        response = await self._request("GET", api, params=params)
+        try:
+            tweetResult = response["data"]["tweetResult"]
+            if "result" not in tweetResult:
+                logger.warning("Empty tweet result: {}", response)
+                raise NazurinError("Tweet not found.")
+            return WebAPI.normalize_tweet(tweetResult["result"])
+        except KeyError as error:
+            msg = "Failed to parse response:"
+            logger.error("{} {}", msg, error)
+            logger.info("{}", response)
+            raise NazurinError(f"{msg} {error}") from error
+
     async def _require_auth(self):
         if not WebAPI.headers.get(Headers.AUTH_TYPE):
             await self._get_guest_token()
@@ -215,7 +277,15 @@ def _process_response(self, response: dict, tweet_id: str):
         tweet = None
         for entry in entries:
             if entry["entryId"] == f"tweet-{tweet_id}":
-                tweet = entry["content"]["itemContent"]["tweet_results"]["result"]
+                tweet = entry["content"]["itemContent"]["tweet_results"]
+                if "result" not in tweet:
+                    logger.warning("Empty tweet result: {}", response)
+                    raise NazurinError(
+                        "Tweet result is empty, maybe it's a sensitive tweet "
+                        "or the author limited visibility, "
+                        "you may try setting an AUTH_TOKEN."
+                    )
+                tweet = tweet["result"]
                 break
 
         if not tweet:
@@ -240,7 +310,6 @@ def _process_response(self, response: dict, tweet_id: str):
         # the result is not a direct tweet type, the real tweet is nested.
         if typename == "TweetWithVisibilityResults" or tweet.get("tweet"):
             tweet = tweet["tweet"]
-
         tweet = WebAPI.normalize_tweet(tweet)
         # Return original tweet if it's a retweet
         retweet_original = tweet.get("retweeted_status_result")
@@ -255,6 +324,9 @@ def normalize_tweet(data: dict):
         Transform tweet object from API to a normalized schema.
         """
 
+        if data.get("__typename") == "TweetUnavailable":
+            reason = WebAPI.error_message_by_reason(data.get("reason"))
+            raise NazurinError(f"Tweet is unavailable, reason: {reason}.")
         tweet = data["legacy"]
         tweet.update(
             {
@@ -281,3 +353,14 @@ def normalize_user(data: dict):
             }
         )
         return user
+
+    @staticmethod
+    def error_message_by_reason(reason: str):
+        MESSAGES = {
+            "NsfwLoggedOut": "NSFW tweet, please log in",
+            "Protected": "Protected tweet, you may try logging in if you have access",
+            "Suspended": "This account has been suspended",
+        }
+        if reason in MESSAGES:
+            return MESSAGES[reason]
+        return reason