[英]Deprecated offline_access on facebook with RoR
我們的RoR應用程序存在問題。 我們正在使用omniauth的facebook身份驗證,並使用Koala搜索用戶朋友。 但是最近,當我們嘗試顯示朋友照片時,我們收到了此錯誤:
Koala::Facebook::APIError in Homes#show
Showing /home/daniel/Homes/app/views/shared/_event.html.erb where line #19 raised:
OAuthException: Error validating access token: Session has expired at unix time 1328727600. The current unix time is 1328802133.
Extracted source (around line #19):
16: <img src="../assets/friends-icon.png" alt="User profile apicture" height="33" width="43">
17: <% if current_user %>
18: <% event.friends_in_event(@person).each do |f| %>
19: <%= link_to(image_tag(f.fb_picture, :size => "43x33"), person_path(f.id)) %>
20: <% end %>
21: <% end %>
22: </div>
身份驗證工作正常,但Facebook已經棄用了offline_access選項,這項工作正常,但現在,我們遇到了這個問題。 是擴展access_token?的任何方式,還是有另一種解決方案?
這是我們的omniauth.rb
Rails.application.config.middleware.use OmniAuth::Builder do
provider :facebook, ENV['FB_KEY'], ENV['FB_SECRET'],
{ :scope => 'email,offline_access,user_photos,publish_stream',
:client_options => { :ssl => { :ca_path => "/etc/ssl/certs" } } }
end
還有我們的koala.rb
Koala.http_service.http_options = {
:ssl => { :ca_path => "/etc/ssl/certs" }
}
提前致謝。
這個問題有兩個解決方案:
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&client_secret=APP_SECRET&grant_type=fb_exchange_token&fb_exchange_token=EXISTING_ACCESS_TOKEN
: https://graph.facebook.com/oauth/access_token?client_id=APP_ID&client_secret=APP_SECRET&grant_type=fb_exchange_token&fb_exchange_token=EXISTING_ACCESS_TOKEN
OAuthException
並請求新的訪問令牌:
access_token
調用圖形。 access_token
正常。 如果它拋出OAuthException
,請將用戶重定向到https://www.facebook.com/dialog/oauth?client_id=APP_ID&redirect_uri=CALLBACK_URL
code
重定向到您的CALLBACK_URL
。 code
發送帖子到以下URL以獲取新的access_token
: https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
: access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
code
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&redirect_uri=CALLBACK_URL&client_secret=APP_SECRET&code=CODE&display=popup
access_token
閱讀他們的開發博客上的帖子了解更多信息。
編輯(添加示例Ruby on Rails代碼):
將以下內容添加到ApplicationController
的頂部:
rescue_from Koala::Facebook::APIError, :with => :handle_fb_exception
將以下protected
方法添加到ApplicationController
:
def handle_fb_exception exception
if exception.fb_error_type.eql? 'OAuthException'
logger.debug "[OAuthException] Either the user's access token has expired, they've logged out of Facebook, deauthorized the app, or changed their password"
oauth = Koala::Facebook::OAuth.new
# If there is a code in the url, attempt to request a new access token with it
if params.has_key? 'code'
code = params['code']
logger.debug "We have the following code in the url: #{code}"
logger.debug "Attempting to fetch a new access token..."
token_hash = oauth.get_access_token_info code
logger.debug "Obtained the following hash for the new access token:"
logger.debug token_hash.to_yaml
redirect_to root_path
else # Since there is no code in the url, redirect the user to the Facebook auth page for the app
oauth_url = oauth.url_for_oauth_code :permissions => 'email'
logger.debug "No code was present; redirecting to the following url to obtain one: #{oauth_url}"
redirect_to oauth_url
end
else
logger.debug "Since the error type is not an 'OAuthException', this is likely a bug in the Koala gem; reraising the exception..."
raise exception
end
end
Koala調用全部取自以下2個教程:
對於那些沒有時間進行此更改的人,我發現您可以在“設置” - >“高級”中禁用此遷移。 該選項的名稱是“刪除offline_access權限:”
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