86 lines
2.6 KiB
Ruby
86 lines
2.6 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Remotable
|
|
extend ActiveSupport::Concern
|
|
|
|
class_methods do
|
|
def remotable_attachment(attachment_name, limit)
|
|
attribute_name = "#{attachment_name}_remote_url".to_sym
|
|
method_name = "#{attribute_name}=".to_sym
|
|
alt_method_name = "reset_#{attachment_name}!".to_sym
|
|
|
|
define_method method_name do |url|
|
|
return if url.blank?
|
|
|
|
begin
|
|
parsed_url = Addressable::URI.parse(url).normalize
|
|
rescue Addressable::URI::InvalidURIError
|
|
return
|
|
end
|
|
|
|
return if !%w(http https).include?(parsed_url.scheme) || parsed_url.host.empty? || self[attribute_name] == url
|
|
|
|
begin
|
|
Request.new(:get, url).perform do |response|
|
|
next if response.code != 200
|
|
|
|
content_type = parse_content_type(response.headers.get('content-type').last)
|
|
extname = detect_extname_from_content_type(content_type)
|
|
|
|
if extname.nil?
|
|
disposition = response.headers.get('content-disposition').last
|
|
matches = disposition&.match(/filename="([^"]*)"/)
|
|
filename = matches.nil? ? parsed_url.path.split('/').last : matches[1]
|
|
extname = filename.nil? ? '' : File.extname(filename)
|
|
end
|
|
|
|
basename = SecureRandom.hex(8)
|
|
|
|
send("#{attachment_name}=", StringIO.new(response.body_with_limit(limit)))
|
|
send("#{attachment_name}_file_name=", basename + extname)
|
|
|
|
self[attribute_name] = url if has_attribute?(attribute_name)
|
|
end
|
|
rescue HTTP::TimeoutError, HTTP::ConnectionError, OpenSSL::SSL::SSLError, Paperclip::Errors::NotIdentifiedByImageMagickError, Addressable::URI::InvalidURIError, Mastodon::HostValidationError, Mastodon::LengthValidationError => e
|
|
Rails.logger.debug "Error fetching remote #{attachment_name}: #{e}"
|
|
nil
|
|
rescue Paperclip::Error, Mastodon::DimensionsValidationError => e
|
|
Rails.logger.debug "Error processing remote #{attachment_name}: #{e}"
|
|
nil
|
|
end
|
|
end
|
|
|
|
define_method alt_method_name do
|
|
url = self[attribute_name]
|
|
|
|
return if url.blank?
|
|
|
|
self[attribute_name] = ''
|
|
send(method_name, url)
|
|
end
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def detect_extname_from_content_type(content_type)
|
|
return if content_type.nil?
|
|
|
|
type = MIME::Types[content_type].first
|
|
|
|
return if type.nil?
|
|
|
|
extname = type.extensions.first
|
|
|
|
return if extname.nil?
|
|
|
|
".#{extname}"
|
|
end
|
|
|
|
def parse_content_type(content_type)
|
|
return if content_type.nil?
|
|
|
|
content_type.split(/\s*;\s*/).first
|
|
end
|
|
end
|