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Contents
# frozen_string_literal: true
module Bulkrax
module DownloadBehavior
# The following download code is based on
# https://github.com/samvera/hydra-head/blob/main/hydra-core/app/controllers/concerns/hydra/controller/download_behavior.rb
def file
@file ||= File.open(file_path, 'r')
end
# Override this if you'd like a different filename
# @return [String] the filename
def file_name
file_path.split('/').last
end
def download_content_type
'application/zip'
end
def send_content
response.headers['Accept-Ranges'] = 'bytes'
if request.head?
content_head
else
send_file_contents
end
end
# Create some headers for the datastream
def content_options
{ disposition: 'attachment', type: download_content_type, filename: file_name }
end
# render an HTTP HEAD response
def content_head
response.headers['Content-Length'] = file.size
head :ok, content_type: download_content_type
end
def send_file_contents
self.status = 200
prepare_file_headers
stream_body file.read
end
def prepare_file_headers
send_file_headers! content_options
response.headers['Content-Type'] = download_content_type
response.headers['Content-Length'] ||= file.size.to_s
# Prevent Rack::ETag from calculating a digest over body
response.headers['Last-Modified'] = File.mtime(file_path).utc.strftime("%a, %d %b %Y %T GMT")
self.content_type = download_content_type
end
def stream_body(iostream)
self.response_body = iostream
end
end
end
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20 entries across 20 versions & 1 rubygems