Tar archive extract to buffer and offer for view / download

Rails
1

I want to open a tar.gz archive and display the content as a folder
structure and offer possibility to download and view the content. The
archive should not be compressed to a folder but only to a buffer.

Helper:
require ‘tarruby’
def testFu
File.directory?(log_folder) or return “Log folder ‘#{log_folder}’
doesn’t exist.”
log_archive = File.expand_path(@log.log_archive,log_folder)
# a hash which i probably can access from my view
$result = Hash.new
Tar.gzopen(log_archive, File::RDONLY, 0644, Tar::GNU |
Tar::VERBOSE) do |tar|
tar.each do
if tar.reg? # regular file
buf = tar.extract_buffer
$result[tar.pathname] = buf
end
end
end
end

View:

<%= File.basename(@log.log_archive) %>

<% $result.each do |key, value| %>
  • <%= key %>
    • <% end %>

    Is my approach rails compliant? How can I add a download link (from
    the buffer) and offer possibilty to view the buffer on click in a
    popup window?

    Best regards,
    Sebastian