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# frozen_string_literal: true
module Paperclip
class ResponseWithLimitAdapter < AbstractAdapter
def self.register
Paperclip.io_adapters.register self do |target|
target.is_a?(ResponseWithLimit)
end
end
def initialize(target, options = {})
super
cache_current_values
end
private
def cache_current_values
@original_filename = filename_from_content_disposition || filename_from_path || 'data'
@size = @target.response.content_length
@tempfile = copy_to_tempfile(@target)
@content_type = ContentTypeDetector.new(@tempfile.path).detect
end
def copy_to_tempfile(source)
bytes_read = 0
source.response.body.each do |chunk|
bytes_read += chunk.bytesize
destination.write(chunk)
chunk.clear
raise Mastodon::LengthValidationError if bytes_read > source.limit
end
destination.rewind
destination
rescue Mastodon::LengthValidationError
destination.close(true)
raise
ensure
source.response.connection.close
end
def filename_from_content_disposition
disposition = @target.response.headers['content-disposition']
disposition&.match(/filename="([^"]*)"/)&.captures&.first
end
def filename_from_path
@target.response.uri.path.split('/').last
end
end
end
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