Very simple file upload in Rails.

I made a very simple file upload page in Rails so my friend could send me some images from her camera in a zip file.

In app/views/file_upload/index.erb:

<% form_tag '/file_upload/upload', :multipart => true do %>

  <%= file_field_tag "file" %><br>

  <%= submit_tag "Submit" %><% end %>

In app/controllers/file_upload_controller.rb:

class FileUploadController < ApplicationController

  def index

  end
  def upload

    file = params["file"]

    name = file.original_filename

    File.open(File.join("/media/sdb1/dropbox", name), "wb") { |f| f.write(file.read) }

    render :text => "Wrote #{name}, complete!"

  end

end

Obviously this is not meant for production; it is just a dumb way to transfer a file over the web. In particular, you should probably use some sort of chroot jail or verification of filename so the program cannot touch files outside the desired directory.