106 lines
3.5 KiB
Ruby
106 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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class Admin::SystemCheck::MediaPrivacyCheck < Admin::SystemCheck::BaseCheck
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include RoutingHelper
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def skip?
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!current_user.can?(:view_devops)
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end
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def pass?
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check_media_uploads!
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@failure_message.nil?
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end
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def message
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Admin::SystemCheck::Message.new(@failure_message, @failure_value, @failure_action, true)
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end
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private
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def check_media_uploads!
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if Rails.configuration.x.use_s3
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check_media_listing_inaccessible_s3!
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else
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check_media_listing_inaccessible!
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end
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end
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def check_media_listing_inaccessible!
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full_url = full_asset_url(media_attachment.file.url(:original, false))
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# Check if we can list the uploaded file. If true, that's an error
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directory_url = Addressable::URI.parse(full_url)
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directory_url.query = nil
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filename = directory_url.path.gsub(%r{.*/}, '')
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directory_url.path = directory_url.path.gsub(%r{/[^/]+\Z}, '/')
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Request.new(:get, directory_url, allow_local: true).perform do |res|
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if res.truncated_body&.include?(filename)
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@failure_message = use_storage? ? :upload_check_privacy_error_object_storage : :upload_check_privacy_error
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@failure_action = 'https://docs.joinmastodon.org/admin/optional/object-storage/#FS'
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end
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end
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rescue
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nil
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end
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def check_media_listing_inaccessible_s3!
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urls_to_check = []
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paperclip_options = Paperclip::Attachment.default_options
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s3_protocol = paperclip_options[:s3_protocol]
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s3_host_alias = paperclip_options[:s3_host_alias]
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s3_host_name = paperclip_options[:s3_host_name]
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bucket_name = paperclip_options.dig(:s3_credentials, :bucket)
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urls_to_check << "#{s3_protocol}://#{s3_host_alias}/" if s3_host_alias.present?
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urls_to_check << "#{s3_protocol}://#{s3_host_name}/#{bucket_name}/"
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urls_to_check.uniq.each do |full_url|
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check_s3_listing!(full_url)
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break if @failure_message.present?
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end
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rescue
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nil
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end
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def check_s3_listing!(full_url)
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bucket_url = Addressable::URI.parse(full_url)
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bucket_url.path = bucket_url.path.delete_suffix(media_attachment.file.path(:original))
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bucket_url.query = "max-keys=1&x-random=#{SecureRandom.hex(10)}"
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Request.new(:get, bucket_url, allow_local: true).perform do |res|
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if res.truncated_body&.include?('ListBucketResult')
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@failure_message = :upload_check_privacy_error_object_storage
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@failure_action = 'https://docs.joinmastodon.org/admin/optional/object-storage/#S3'
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end
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end
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end
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def media_attachment
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@media_attachment ||= begin
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attachment = Account.representative.media_attachments.first
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if attachment.present?
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attachment.touch # rubocop:disable Rails/SkipsModelValidations
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attachment
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else
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create_test_attachment!
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end
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end
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end
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def create_test_attachment!
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Tempfile.create(%w(test-upload .jpg), binmode: true) do |tmp_file|
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tmp_file.write(
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Base64.decode64(
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'/9j/4QAiRXhpZgAATU0AKgAAAAgAAQESAAMAAAABAAYAAAA' \
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'AAAD/2wCEAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBA' \
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'QEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQE' \
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'BAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAf/AABEIAAEAAgMBEQACEQEDEQH/x' \
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'ABKAAEAAAAAAAAAAAAAAAAAAAALEAEAAAAAAAAAAAAAAAAAAAAAAQEAAAAAAAAAAAAAAAA' \
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'AAAAAEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwA/8H//2Q=='
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)
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)
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tmp_file.flush
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Account.representative.media_attachments.create!(file: tmp_file)
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end
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end
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end
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