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# frozen_string_literal: true
module SendFileUpload
def send_upload(file_upload, send_params: {}, redirect_params: {}, attachment: nil, proxy: false, disposition: 'attachment')
content_type = content_type_for(attachment)
if attachment
response_disposition = ActionDispatch::Http::ContentDisposition.format(disposition: disposition, filename: attachment)
# Response-Content-Type will not override an existing Content-Type in
# Google Cloud Storage, so the metadata needs to be cleared on GCS for
# this to work. However, this override works with AWS.
redirect_params[:query] = { "response-content-disposition" => response_disposition,
"response-content-type" => content_type }
# By default, Rails will send uploads with an extension of .js with a
# content-type of text/javascript, which will trigger Rails'
# cross-origin JavaScript protection.
send_params[:content_type] = 'text/plain' if File.extname(attachment) == '.js'
send_params.merge!(filename: attachment, disposition: disposition)
end
if image_scaling_request?(file_upload)
location = file_upload.file_storage? ? file_upload.path : file_upload.url
headers.store(*Gitlab::Workhorse.send_scaled_image(location, params[:width].to_i, content_type))
head :ok
elsif file_upload.file_storage?
send_file file_upload.path, send_params
elsif file_upload.class.proxy_download_enabled? || proxy
headers.store(*Gitlab::Workhorse.send_url(file_upload.url(**redirect_params)))
head :ok
else
redirect_to file_upload.url(**redirect_params)
end
end
def content_type_for(attachment)
return '' unless attachment
guess_content_type(attachment)
end
def guess_content_type(filename)
types = MIME::Types.type_for(filename)
if types.present?
types.first.content_type
else
"application/octet-stream"
end
end
private
def image_scaling_request?(file_upload)
avatar_safe_for_scaling?(file_upload) &&
scaling_allowed_by_feature_flags?(file_upload) &&
valid_image_scaling_width?
end
def avatar_safe_for_scaling?(file_upload)
file_upload.try(:image_safe_for_scaling?) && mounted_as_avatar?(file_upload)
end
def mounted_as_avatar?(file_upload)
file_upload.try(:mounted_as)&.to_sym == :avatar
end
def valid_image_scaling_width?
Avatarable::ALLOWED_IMAGE_SCALER_WIDTHS.include?(params[:width]&.to_i)
end
def scaling_allowed_by_feature_flags?(file_upload)
Feature.enabled?(:dynamic_image_resizing, type: :ops)
end
end
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