111 lines
3.6 KiB
Ruby
111 lines
3.6 KiB
Ruby
# frozen_string_literal: true
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# this is a quick backport of a new method introduced in Rails 6
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# to be removed after we upgrade to Rails 6
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if ! defined? ActionView::Base.with_view_paths
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class ActionView::Base
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class << self
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alias with_view_paths new
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end
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end
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end
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# backport of https://github.com/rails/rails/commit/890485cfce4c361c03a41ec23b0ba187007818cc
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if !defined? ActionDispatch::Http::ContentDisposition
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module ActionDispatch
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module Http
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class ContentDisposition
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def self.format(disposition:, filename:)
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new(disposition: disposition, filename: filename).to_s
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end
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attr_reader :disposition, :filename
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def initialize(disposition:, filename:)
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@disposition = disposition
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@filename = filename
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end
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TRADITIONAL_ESCAPED_CHAR = /[^ A-Za-z0-9!#$+.^_`|~-]/
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def ascii_filename
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'filename="' + percent_escape(I18n.transliterate(filename), TRADITIONAL_ESCAPED_CHAR) + '"'
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end
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RFC_5987_ESCAPED_CHAR = /[^A-Za-z0-9!#$&+.^_`|~-]/
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def utf8_filename
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"filename*=UTF-8''" + percent_escape(filename, RFC_5987_ESCAPED_CHAR)
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end
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def to_s
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if filename
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"#{disposition}; #{ascii_filename}; #{utf8_filename}"
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else
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"#{disposition}"
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end
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end
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private
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def percent_escape(string, pattern)
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string.gsub(pattern) do |char|
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char.bytes.map { |byte| "%%%02X" % byte }.join
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end
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end
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end
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end
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end
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module ActionController
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module DataStreaming
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private
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def send_file_headers!(options)
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type_provided = options.has_key?(:type)
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content_type = options.fetch(:type, DEFAULT_SEND_FILE_TYPE)
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self.content_type = content_type
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response.sending_file = true
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raise ArgumentError, ":type option required" if content_type.nil?
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if content_type.is_a?(Symbol)
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extension = Mime[content_type]
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raise ArgumentError, "Unknown MIME type #{options[:type]}" unless extension
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self.content_type = extension
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else
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if !type_provided && options[:filename]
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# If type wasn't provided, try guessing from file extension.
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content_type = Mime::Type.lookup_by_extension(File.extname(options[:filename]).downcase.delete(".")) || content_type
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end
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self.content_type = content_type
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end
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disposition = options.fetch(:disposition, DEFAULT_SEND_FILE_DISPOSITION)
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if disposition
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headers["Content-Disposition"] = ActionDispatch::Http::ContentDisposition.format(disposition: disposition, filename: options[:filename])
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end
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headers["Content-Transfer-Encoding"] = "binary"
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# Fix a problem with IE 6.0 on opening downloaded files:
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# If Cache-Control: no-cache is set (which Rails does by default),
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# IE removes the file it just downloaded from its cache immediately
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# after it displays the "open/save" dialog, which means that if you
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# hit "open" the file isn't there anymore when the application that
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# is called for handling the download is run, so let's workaround that
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response.cache_control[:public] ||= false
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end
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end
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end
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module ActiveStorage
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class Service
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private
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def content_disposition_with(type: "inline", filename:)
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disposition = (type.to_s.presence_in(%w( attachment inline )) || "inline")
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ActionDispatch::Http::ContentDisposition.format(disposition: disposition, filename: filename.sanitized)
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end
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end
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end
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end
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