Net::HTTP get a PDF file and save with paperclip - ruby

Question

I would download a PDF File in a web server. I use the Net::HTTP Ruby class.
def open_file(url)
uri = URI.parse(url)
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Get.new(uri.path)
request.basic_auth(self.class.user, self.class.password)
http.request(request)
end
It works, I retrieve my PDF file, it's a string like : %PDF-1.3\n%\ ...
I have a method who return the result :
def file
result = open_file(self.file_url)
times = 0
if result.code == 404 && times <= 5
sleep(1)
times += 1
file
else
result.body
end
end
(It's a recursive method because that possible the file doesn't exist again on the server)
But when I would save this file with Paperclip, I have a error : Paperclip::AdapterRegistry::NoHandlerError (No handler found for "%PDF-1.3\n% ...
I tried manipulate the file with StringIO... without success :(.
Anyone have a idea ?

Answer 1

Assuming the PDF object you're getting is okay (I'm not 100% sure it is), then you could do this:
file = StringIO.new(attachment) #mimic a real upload file
file.class.class_eval { attr_accessor :original_filename, :content_type } #add attr's that paperclip needs
file.original_filename = "your_report.pdf"
file.content_type = "application/pdf"
then save the file with Paperclip.
(from "Save a Prawn PDF as a Paperclip attachment?")