为命令行(桌面)应用程序获取 Facebook 身份验证令牌 [英] Obtaining a Facebook auth token for a command-line (desktop) application

问题描述

我在一家推广手语的慈善机构工作，他们想每天在他们的 FB 页面上发布视频.有大量(并且不断增加)的视频，因此他们希望以编程方式安排上传.我真的不介意我最终用什么编程语言来做这件事，但我已经尝试了以下方法并没有走得很远:

I am working for a charity which is promoting sign language, and they want to post a video to their FB page every day. There's a large (and growing) number of videos, so they want to schedule the uploads programmatically. I don't really mind what programming language I end up doing this in, but I've tried the following and not got very far:

• Perl 使用 WWW::Facebook::API(旧的 REST API)

• Perl using WWW::Facebook::API (old REST API)

my $res = $client->video->upload(
 title => $name,
 description => $description,
 data => scalar(read_file("videos/split/$name.mp4"))
);

身份验证没问题，这正确地将 facebook.video.upload 方法发布到 https://api-video.facebook.com/restserver.php.不幸的是，这将返回方法未知".我认为这与 REST API 被弃用有关.

Authentication is OK, and this correctly posts a facebook.video.upload method to https://api-video.facebook.com/restserver.php. Unfortunately, this returns "Method unknown". I presume this is to do with the REST API being deprecated.

Facebook::Graph Perl 或 fb_graph Ruby 中的 gem.(OAuth API)

Facebook::Graph in Perl or fb_graph gem in Ruby. (OAuth API)

我什至无法进行身份验证.这两个都面向网络而不是 OAuth 的桌面应用程序，但我认为我应该能够做到:

I can't even authenticate. Both of these are geared towards web rather than desktop applications of OAuth, but I think I ought to be able to do:

my $fb = Facebook::Graph->new(
 app_id => "xxx",
 secret => "yyy",
 postback => "https://www.facebook.com/connect/login_success.html"
);
print $fb->authorize->extend_permissions(qw(publish_stream read_stream))->uri_as_string;

在我的浏览器中转到那个 URL，捕获返回的 code 参数，然后

Go to that URL in my browser, capture the code parameter returned, and then

my $r = $fb->request_access_token($code);

不幸的是:

Could not fetch access token: Bad Request at /Library/Perl/5.16/Facebook/Graph/AccessToken/Response.pm line 26

在 Ruby 中类似，使用 fb_graph，>

fb_auth = FbGraph::Auth.new(APP_ID, APP_SECRET)

client = fb_auth.client
client.redirect_uri = "https://www.facebook.com/connect/login_success.html"
puts client.authorization_uri(
  :scope => [:publish_stream, :read_stream]
)

给我一​​个返回代码但正在运行的 URL

Gives me a URL which returns a code, but running

client.authorization_code = <code>
FbGraph.debug!
access_token = client.access_token!

返回

{
  "error": {
    "message": "Missing client_id parameter.",
    "type":    "OAuthException",
    "code":    101
  }
}

更新:当我将 access_token! 调用更改为 access_token!("foobar") 以强制 Rack::OAuth2::Client将标识符和秘密放入请求正文中，我收到以下错误:

Update: When I change the access_token! call to access_token!("foobar") to force Rack::OAuth2::Client to put the identifier and secret into the request body, I get the following error instead:

{
  "error": {
    "message": "The request is invalid because the app is configured as a desktop app",
     "type":   "OAuthException",
     "code":   1
  }
}

我应该如何使用 OAuth 向 Facebook 验证桌面/命令行应用程序?

How am I supposed to authenticate a desktop/command line app to Facebook using OAuth?

推荐答案

所以，我终于让它工作了，无需设置 Web 服务器和进行回调.与直觉相反，诀窍是关闭关闭桌面应用程序"设置，而不是请求 offline_access.

So, I finally got it working, without setting up a web server and doing a callback. The trick, counter-intuitively, was to turn off the "Desktop application" setting and not to request offline_access.

FaceBook::Graph 对发布视频的支持目前似乎不起作用，所以我最终在 Ruby 中做到了.

FaceBook::Graph's support for posting videos doesn't seem to work at the moment, so I ended up doing it in Ruby.

fb_auth = FbGraph::Auth.new(APP_ID, APP_SECRET)

client = fb_auth.client
client.redirect_uri = "https://www.facebook.com/connect/login_success.html"

if ARGV.length == 0
  puts "Go to this URL"
  puts client.authorization_uri(:scope => [:publish_stream, :read_stream] )
  puts "Then run me again with the code"
  exit
end

if ARGV.length == 1
  client.authorization_code = ARGV[0]
  access_token = client.access_token! :client_auth_body
  File.open("authtoken.txt", "w") { |io| io.write(access_token)  }
  exit
end

file, title, description = ARGV

access_token = File.read("authtoken.txt")
fb_auth.exchange_token! access_token
File.open("authtoken.txt", "w") { |io| io.write(fb_auth.access_token)  }

me = FbGraph::Page.new(PAGE_ID, :access_token => access_token)
me.video!(
    :source => File.new(file),
    :title => title,
    :description => description
)

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