c# - 列出朋友 - 在过程中遇到身份验证失败

Question

所以，我正在尝试向某人所有关注者的朋友求助。不是递归挖掘，就是那个单层。

我能够很好地吸引追随者（看起来它可以处理超过 75k 的追随者，所以我 90% 确定我的速率限制很好）。

但是我拉朋友的代码在 returns 15 个关注朋友之后抛出身份验证错误。

换句话说，在这段代码中：

for (var i = 0; i < followerList.Count; i++)
{
  await followersFriends(followerList[i]);
}

我在 i == 15 时收到此错误：

LinqToTwitter.TwitterQueryException HResult=0x80131500 Message={"request":"/1.1/friends/ids.json","error":"Not authorized."} - Please visit the LINQ to Twitter FAQ (at the HelpLink) for help on resolving this error.

它似乎完全获得了 15 个列表，它是第 16 个抛出它的。我感觉这不是巧合，它与速率限制相同，尽管如果它是速率限制是一个奇怪的错误。

我会检查一下我们是否在 15 的倍数上，然后暂停 15 分钟，但是，如果这不起作用，有没有人有其他理论可以在这里进行吗？

ETA：我确实尝试在每个运行到 followersFriends 上重做我的身份验证（基于应用程序）。没有帮助。

预计到达时间 2：

这是新的调用代码：

for (var i = 0; i < followerList.Count; i++)
{
  if (i % 15 == 0 && i != 0) {
    Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - i = " + i + " and user = " + followerList[i]);
    PauseThatRefreshes("friends");
    RunMe();
  }

  await followersFriends(followerList[i]);
}

这里是被调用的代码：

private async Task followersFriends(ulong uid)
{
  var twitterCtx2 = new TwitterContext(m_foo);

  Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Start Friend Get for " + uid.ToString() + " ***");

  long cursor = -1;

  do
  {
    var friendList = await (from friend in twitterCtx2.Friendship where friend.Type == FriendshipType.FriendIDs && friend.UserID == uid.ToString() && friend.Cursor == cursor select friend).SingleOrDefaultAsync();

    if (twitterCtx2.RateLimitRemaining <= 2)
    {
      Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Pausing A ***");
      Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining at Pause A: " +
        twitterCtx2.RateLimitRemaining.ToString());
      PauseThatRefreshes("friends");
    }

    if (friendList != null &&
      friendList.IDInfo != null &&
      friendList.IDInfo.IDs != null) {
      cursor = friendList.CursorMovement.Next;
      Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining: " + twitterCtx2.RateLimitRemaining.ToString());
      friendList.IDInfo.IDs.ForEach(id => Output(uid.ToString(), id.ToString()));
    }

    if (twitterCtx2.RateLimitRemaining <= 2)
    {
      Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Pause B ***");
      Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining at Pause B: " + twitterCtx2.RateLimitRemaining.ToString());
      PauseThatRefreshes("friends");
    }
  } while (cursor != 0);

  Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Stop Friend Get for " + uid.ToString() + " ***");
  Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining at stop: " + twitterCtx2.RateLimitRemaining.ToString());

  return;
}

ETA 只是为了澄清，调用 followersFriends 的代码。是的，我知道，我没有更改我的按钮名称 =D 这更多是关于收集数据，我更喜欢表单而不是命令行...我不知道为什么。无论如何，不在这里也不在那里：

        private async void button2_Click(object sender, EventArgs e)
    {

        var twitterCtx = new TwitterContext(m_foo);
        string[] header = { "Account,Follows" };
        File.WriteAllLines(@"C:\temp\followersFriends.txt", header);

        //List to store ids of followers of main account
        List<ulong> followerList = new List<ulong>();
        // get main accounts followers and put into an array
        long cursor = -1;
        Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Start Follower Get ***");
        do
        {

            var followers =
    await
    (from follower in twitterCtx.Friendship
     where follower.Type == FriendshipType.FollowerIDs &&
           follower.ScreenName == "[[redacted]]" && 
           follower.Cursor == cursor
     select follower)
    .SingleOrDefaultAsync();
            if (followers != null &&
                followers.IDInfo != null &&
                followers.IDInfo.IDs != null
                &&
                followers.CursorMovement != null)
            {
                cursor = followers.CursorMovement.Next;
                followers.IDInfo.IDs.ForEach(id =>
                  followerList.Add(id));
            }

            if (twitterCtx.RateLimitRemaining <= 2)
                PauseThatRefreshes("followers");
        } while (cursor != 0);
        Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Done Follower Get ***");

        for (var i = 0; i < followerList.Count; i++)
        {
            if (i % 15 == 0 && i != 0)
            {
                Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - i = " + i 
                    + " and user = " + followerList[i]);
                PauseThatRefreshes("friends");
                RunMe();
            }
            await followersFriends(followerList[i]);
        }
    }

Answer 1

如您的注释所示，遇到 1963joeym 帐户时会抛出带有 "Not Authorized" 消息的 TwitterQueryException。检查此帐户，我可以看到他们已经保护了它。 "protected" 的概念意味着没有人可以看到一个人的帐户或相关 activity 除非那个人 "authorizes" 您的帐户。由于他们尚未授权尝试查询其好友列表的帐户，因此您会收到来自 Twitter 的 HTTP 401 Unauthorized。因此，"Not Authorized" 消息的原因。

虽然用户实体有一个 bool Protected 属性，但在你的情况下检查它是不切实际的，因为你只使用 ID 列表并且不' 有可用的完整 User 实例。在这种情况下，您唯一能做的就是处理异常并从那里恢复。处理这个异常有两个地方：（1）查询原始好友列表时和（2）查询好友的好友列表时，如下所示：

        var allFollowerIds = new List<ulong>();
        Friendship followers = null;
        long cursor = -1;
        do
        {
            try
            {
                followers =
                    await
                    (from follower in twitterCtx.Friendship
                     where follower.Type == FriendshipType.FollowerIDs &&
                           follower.UserID == "1039951639" &&// "15411837" &&
                           follower.Cursor == cursor &&
                           follower.Count == 500
                     select follower)
                    .SingleOrDefaultAsync();
            }
            catch (TwitterQueryException tqExUnauthorized) when (tqExUnauthorized.StatusCode == HttpStatusCode.Unauthorized)
            {
                Console.WriteLine("This user hasn't given your account permission to view their account.");
            }
            catch (TwitterQueryException tqe)
            {
                Console.WriteLine(tqe.ToString());
                break;
            }

            if (followers != null &&
                followers.IDInfo != null &&
                followers.IDInfo.IDs != null)
            {
                cursor = followers.CursorMovement.Next;

                allFollowerIds.AddRange(followers.IDInfo.IDs);
            }

        } while (cursor != 0);

        cursor = -1;
        foreach (var uid in allFollowerIds)
        {
            Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Start Friend Get for " + uid.ToString() + " ***");

            do
            {
                Friendship friendList = null;
                try
                {
                    friendList = await (from friend in twitterCtx.Friendship where friend.Type == FriendshipType.FriendIDs && friend.UserID == uid.ToString() && friend.Cursor == cursor select friend).SingleOrDefaultAsync();
                }
                catch (TwitterQueryException tqExUnauthorized) when (tqExUnauthorized.StatusCode == HttpStatusCode.Unauthorized)
                {
                    Console.WriteLine("This user hasn't given your account permission to view their account.");
                }

                if (twitterCtx.RateLimitRemaining <= 2)
                {
                    Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Pausing A ***");
                    Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining at Pause A: " +
                      twitterCtx.RateLimitRemaining.ToString());
                    //PauseThatRefreshes("friends");
                }

                if (friendList != null &&
                  friendList.IDInfo != null &&
                  friendList.IDInfo.IDs != null)
                {
                    cursor = friendList.CursorMovement.Next;
                    Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining: " + twitterCtx.RateLimitRemaining.ToString());
                    //friendList.IDInfo.IDs.ForEach(id => Output(uid.ToString(), id.ToString()));
                }

                if (twitterCtx.RateLimitRemaining <= 2)
                {
                    Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Pause B ***");
                    Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining at Pause B: " + twitterCtx.RateLimitRemaining.ToString());
                    //PauseThatRefreshes("friends");
                }
            } while (cursor != 0);

            Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - *** Stop Friend Get for " + uid.ToString() + " ***");
            Console.WriteLine(DateTime.Now.ToString("h:mm:ss tt") + " - Friends Rate Limit Remaining at stop: " + twitterCtx.RateLimitRemaining.ToString());
        }

请注意，我使用了带有 when 子句的 try/catch，专门用于 401 Unauthorized 场景，重复如下：

        catch (TwitterQueryException tqExUnauthorized) when (tqExUnauthorized.StatusCode == HttpStatusCode.Unauthorized)
        {
            Console.WriteLine("This user hasn't given your account permission to view their account.");
        }

对于朋友列表，这让您可以只处理 Unauthorized 部分，并且仍然保护不符合该条件的任何其他 TwitterQueryException。对于好友的好友列表，只需要处理Unauthorized异常，让查询继续迭代剩余的好友即可。

c# - 列出朋友 - 在过程中遇到身份验证失败

c# - Listing Friends -- Hitting auth failure mid-process

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