从页面标签验证用户 [英] Authenticate a user from a page tab

问题描述

我试图让一个Facebook页面标签，人们可以从一堆文件中嵌入投票选出他们最喜欢的视频或音乐曲目。我需要从每个用户一个唯一的ID，以确保他们只能投票一次。该signed_request只包含用户的ID，如果他们认可我的应用程序。

I'm trying to make a Facebook page tab where people can vote for their favorite video or music track from a bunch of embedded files. I need to get a unique ID from each user to make sure that they can only vote once. The signed_request only contains the user's id if they have authorized my app.

我试图让用户授权使用FB.login（）JavaScript API第我的应用程序，但我得到的错误：

I have tried to have users authorize my app using the FB.login() javascript api, but I get the error:

与混音//返修投票时发生错误。请稍后再试

API错误code：191

API Error Code: 191

API错误描述：指定的URL不属于应用程序

API Error Description: The specified URL is not owned by the application

错误消息：无效REDIRECT_URI：给定的URL不是由应用程序配置允许

Error Message: Invalid redirect_uri: Given URL is not permitted by the application configuration.

据我所知，我没有设置任何重定向URL。我是否需要设置这个地方，还是这是不正确的方法来获取用户验证我的网页标签？

As far as I know, I have not set any redirect URL. Do I need to set this somewhere, or is this the not right approach to get a user to authenticate my page tab?

推荐答案

所以我设法得到这个由应用程序设置滴答作响的应用程序在Facebook上，并设置画布网址和安全帆布网址 s到相同的页面标签URL当量。

So I managed to get this to work by ticking "App on Facebook" in the app settings, and setting the Canvas URL and Secure Canvas URLs to be the same as the Page Tab URL equivalents.

这工作，即使这不是一个完整的应用程序，它只是一个页标签，除非它是在一个容器页面将不能作为一个应用程序。

This worked even though this isn't a full app, it's only a page tab, and it won't function as an app unless it's in a container page.

我猜这是Facebook的一个bug - 用户界面意味着你可以有一个页面标签唯一的应用程序。该文件没有说你不能，我不能想到一个很好的技术原因它不condsider页选项卡网址为有效网址。

I'm guessing this is a bug in Facebook - the UI implies that you can have a page tab only app. The documentation doesn't say you can't, and I can't think of a good technical reason for it not to condsider a page tab URL as a valid URL.

感谢 @胡里奥 - 桑托斯在的Facebook - 错误消息：REDIRECT_URI不是由应用时，这似乎是在一个稍微不同的上下文相同的问题资

Thanks to @julio-santos for pointing me at Facebook - Error Message: redirect_uri is not owned by the application, which seems to be the same problem in a slightly different context.

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