Paperclip validation issue on production

Question

I have a Problem when I deploy my application on google cloud I get this error

has contents that are not what they are reported to be

Locally it works fine! I already tried to using the command_path. So I really don't know what I have to do next...

This is my model

has_mongoid_attached_file  :image,
    :styles => { :large => "380x380!" , :medium => "240x240", :small => "120x120!" },
    :storage => :fog,
    :fog_public => true,
    :fog_directory => 'XXXX',
    :path => "images/:id/:style/:basename.:extension",
    :fog_credentials => {  :provider => 'Google',
                           :google_storage_access_key_id => 'XXXXX',
                           :google_storage_secret_access_key => 'XXXXX'}

  validates_attachment_content_type :image, :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"]

Thank you for your efforts. I hope you guys can help me

score 6 · Accepted Answer · edited May 23 '17 at 12:26

6

Okay I found a result. I just created a initializers/paperclip.rb file

require 'paperclip/media_type_spoof_detector'
module Paperclip
  class MediaTypeSpoofDetector
    def spoofed?
      false
    end
  end
end

Right now it work's perfectly for me.

If you have problems with ImageMagick on App Engine using Rails see this link

edited May 23 '17 at 12:26

Community

1
1

answered Mar 27 '16 at 23:38

BilalReffas

8,132
4
50
71

Do not know what its doing, But its working which matter and up voted your answer, can you please elaborate a little what its working on – vidur punj Dec 07 '18 at 04:53

Nitin Satish Salunke · Answer 2 · 2016-08-26T19:29:55.483

4

That issue occurs because the content-type discovered from file command returns empty string. Actually system is not able to find the file executable so a exception is raised and empty string is returned back. Check the code below

begin
    Paperclip.run("file", "-b --mime :file", :file => '/tmp/RackMultipart20160826-15649-kwvnq2.png').split(/[:;]\s+/).first
rescue Cocaine::CommandLineError
    ""
end

Solution:-

Add below line in you initializer file.

Paperclip.options[:command_path] = '/usr/bin'

edited Aug 26 '16 at 19:29

answered Aug 26 '16 at 19:25

Nitin Satish Salunke

508
6
16

Which initializer file? – BilalReffas Aug 26 '16 at 19:26
You can put a new initializer file, by name `paperclip.rb`, actually adding it to any of the existing initializer file should work. – Nitin Satish Salunke Aug 26 '16 at 19:27
Do I have to remove the MediaTypeSpoofDetector? And do use as well Google App Engine and rails? – BilalReffas Aug 26 '16 at 19:28
Yes remove it and try this solution, do up vote my answer if it solves your problem. – Nitin Satish Salunke Aug 26 '16 at 19:29
@BilalReffas `/usr/bin` this path may vary on your system, so just verify it once by running the following command in the terminal, `which file` the path which it returns must be added to `Paperclip.options[:command_path]`. – Nitin Satish Salunke Aug 26 '16 at 19:33
Still not working the problem is using app engine I don't have access to more information – BilalReffas Aug 26 '16 at 19:41
1

In my case (docker `ruby:alpine` image) paperclip could not find the `file` executable but because it not installed on `alpine` by default. Huge thanks @NitinSatishSalunke – David Darias Sep 03 '17 at 17:16

score 0 · Answer 3 · answered Mar 26 '16 at 22:07

0

Looks like Google Cloud can't determine MIME type of uploaded files.

You can map file extensions to types in you initializer (application.rb, production.rb or create initializers/paperclip.rb)

Paperclip.options[:content_type_mappings] = {
  :jpg => "image/jpeg",
  :png => "image/png",
  :gif => "image/gif"
}

But this way spoofing check won't be performed for image files.

answered Mar 26 '16 at 22:07

Anatoliy Tszyan

61
4

Don't work for me I can upload the images to google cloud but only if my server running locally. I get this issue only when I deploy it remotely :/ – BilalReffas Mar 26 '16 at 22:38

score 0 · Answer 4 · answered Oct 18 '22 at 17:55

I know I am late to the party, but in working with a legacy RoR system, I ran into this issue. The problem arose in setting the app up in Docker. Ultimately paperclip calling imagemagick was attempting to use file to identify mime-type and the minimal Docker did not have it installed. apt-get install file fixed it.

Paperclip validation issue on production

4 Answers4

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