facebook c#sdk:添加/编辑事件，描述中包含换行符 [英] facebook c# sdk: Add/edit event with newlines in description

问题描述

我正在尝试编辑Facebook页面上的事件. 该SDK可以正常运行，但是我有一个问题.

I am trying to edit events on facebook pages. The SDK works fine, but I have one problem.

只要描述中有换行符(\ r \ n)，它们就会发布到Facebook. 所以我得到像这样的事件主体:

Whenever there are newlines in the description (\r\n), they get posted to facebook. So I get event bodies like:

新活动！\ r \ n欢迎参加活动.

New event!\r\nWelcome to the event.

代替

新活动！
欢迎参加活动.

New event!
Welcome to the event.

从图表结果中可以看到事件，我发现换行符是两次转义的，并且看起来像这样:

looking in the result of a graph get to the event, I see that the newlines are double escaped, and looks like this:

...
"name":"TEST EVENT"，
"description":新事件！\\ r \\ n欢迎来到该事件."，
"start_time":"2011-03-24T00:00:00"
...

...
"name": "TEST EVENT",
"description": "New event!\\r\\nWelcome to the event.",
"start_time": "2011-03-24T00:00:00"
...

我尝试了所有我能想到的可能的解决方案，但无济于事. 我被简化为用"*"代替换行符，只是为了分隔句子...

I've tried any and all possible solutions I can think of, but to no avail. I've been reduced to replacing newlines with " * " just to separate sentences...

文本作为对象中的字符串出现，并被传输到JsonObject.

The text comes as a string in an object, and is transferred to a JsonObject.

JsonObject owner = new JsonObject { .... };
JsonObject evt = new JsonObject();
evt.Add("id", eventId);
evt.Add("owner", owner);
evt.Add("name", eventItem.Name);
evt.Add("updated_time", eventItem.Updated.ToString("o"));
evt.Add("description", eventItem.Description);
evt.Add("start_time", eventItem.StartDate.ToString("o"));
evt.Add("end_time", eventItem.EndDate.ToString("o"));
...
var fbc = new FacebookClient(internalObject.AccessToken);
result = (bool) fbc.Post(evt);

有什么想法吗?

解决方法. 我对FacebookUtils.ToJsonQueryString进行了更改. 这行得通，但是我想这可能是SDK中的错误?

Workaround. I made a change to FacebookUtils.ToJsonQueryString. This works, but I guess it might be a bug in the SDK?

好像Facebook在事件中不支持标准的Json换行符转义吗?

Looks like Facebook doesnt support standard Json escaping of newlines in event?

internal static string ToJsonQueryString(IDictionary<string, object> dictionary)
{
   ...

   jsonValue = jsonValue.Replace("\\n", "\n").Replace("\\r", "\r");

   if (!String.IsNullOrEmpty(jsonValue))
   {
      var encodedValue = UrlEncode(jsonValue);
      sb.AppendFormat(CultureInfo.InvariantCulture, "{0}={1}", key, encodedValue);

   ...
   return sb.ToString();
}

此更改使返回的查询字符串中的\ r \ n看起来像％0d％0a而不是Facebook接受的％5cr％5cn.

This change makes \r\n in the returned querystring look like %0d%0a instead of %5cr%5cn, which is what facebook accepts.

Royan

推荐答案

已从SDK 5.0.8版固定-3月25日.

Fixed as of version SDK 5.0.8 - 25. march

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