Not working on server with SSL

[aleksander-tatskiy]

Hi guys!

I use Link Thumbnailer gem (v. 3.0.2) in my app (Rails 4.2.3, ruby 2.2.2p95). Recently I encountered a problem. On localhost Link Thumbnailer works fine. But I have staging and production servers with ssl where it does not work ( youtube link, for example: http://www.youtube.com/watch?v=6Viyt2aIOG8 ). At first I thought that configurations of my server are wrong or my code has bugs. But I checked everything over and over again. There are no bugs. I checked it in your demo http://link-thumbnailer-demo.herokuapp.com. It works fine. But when I changed link from http://link-thumbnailer-demo.herokuapp.com to https://link-thumbnailer-demo.herokuapp.com it stopped working too like in my app. Could you help to solve this problem please?

Thanks, best regards.

[gottfrois]

The demo is not working in https because it makes a http XHR request which is considered insecure. You can see the console error message in chrome.

How do you call LinkThumbnailer in your rails project?

[aleksander-tatskiy]

message.rb

after_create :detect_link, :if => 'text.present?'

def detect_link
    URI.extract(text).map do |link|
        result = LinkThumbnailer.generate(link)
        if result.images.present?
          attachments.create!({:name => result.title, :remote_attachment_url => result.images.first.src.to_s, :url => result.url, :type => result.videos.andand.first.present? ? 'VideoAttachment' : 'ThumbnailAttachment',  :comments_attributes => [{:text => result.description}]})
        end
    end
    rescue Exception => e
        puts e.message
        return
end

thumbnails_controller.rb

class ThumbnailsController < LoggedUserController

  skip_load_and_authorize_resource

  def new
    begin
      render({ :json => LinkThumbnailer.generate(params[:url]) })
    rescue LinkThumbnailer::Exceptions => e
      render({ :json => e.message, :status => 422 })
    end
  end

  private

    def permitted_params
      params.require(:url)
    end

end

link_thumbnailer.rb

LinkThumbnailer.configure do |config|
  config.redirect_limit = 5
  config.verify_ssl = false
  config.http_timeout = 5
  config.attributes = [:title, :images, :description, :videos]
  config.image_limit = 1
  config.image_stats = false
end

[gottfrois]

I imagine you call the thumbnail endpoint using javascript ajax request? Do you use https there?

[aleksander-tatskiy]

No, I call it from Message model.

Here. If link from youtube, attacment is not created. But from Vimeo it works

after_create :detect_link, :if => 'text.present?'

def detect_link
    URI.extract(text).map do |link|
        result = LinkThumbnailer.generate(link)
        if result.images.present?
      attachments.create!({:name => result.title, :remote_attachment_url => result.images.first.src.to_s, :url => result.url, :type => result.videos.andand.first.present? ? 'VideoAttachment' : 'ThumbnailAttachment',  :comments_attributes => [{:text => result.description}]})
    end
end
rescue Exception => e
    puts e.message
    return
 end

[gottfrois]

Really not sure what could be wrong here. Seems to be working fine with v3.0.3.