forked from fedi/mastodon
48f8658d34
Under certain conditions, files fetched from remotes trigger an error when being uploaded using OpenStack Swift. This is because in some cases, the remote server will not return a content-length, so our ResponseWithLimitAdapter will hold a `nil` value for `#size`, which will lead to an invalid value for the Content-Length header of the Swift API call. This commit fixes that by taking the size from the actually-downloaded file size rather than the upstream-provided Content-Length header value.
56 lines
1.3 KiB
Ruby
56 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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module Paperclip
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class ResponseWithLimitAdapter < AbstractAdapter
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def self.register
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Paperclip.io_adapters.register self do |target|
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target.is_a?(ResponseWithLimit)
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end
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end
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def initialize(target, options = {})
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super
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cache_current_values
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end
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private
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def cache_current_values
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@original_filename = filename_from_content_disposition.presence || filename_from_path.presence || 'data'
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@tempfile = copy_to_tempfile(@target)
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@content_type = ContentTypeDetector.new(@tempfile.path).detect
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@size = File.size(@tempfile)
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end
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def copy_to_tempfile(source)
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bytes_read = 0
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source.response.body.each do |chunk|
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bytes_read += chunk.bytesize
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destination.write(chunk)
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chunk.clear
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raise Mastodon::LengthValidationError if bytes_read > source.limit
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end
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destination.rewind
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destination
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rescue Mastodon::LengthValidationError
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destination.close(true)
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raise
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ensure
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source.response.connection.close
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end
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def filename_from_content_disposition
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disposition = @target.response.headers['content-disposition']
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disposition&.match(/filename="([^"]*)"/)&.captures&.first
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end
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def filename_from_path
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@target.response.uri.path.split('/').last
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end
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end
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end
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