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84 lines
2.3 KiB
Ruby
84 lines
2.3 KiB
Ruby
# frozen_string_literal: true
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class MediaProxyController < ApplicationController
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include RoutingHelper
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include Authorization
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include Redisable
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include Lockable
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skip_before_action :require_functional!
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before_action :authenticate_user!, if: :limited_federation_mode?
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before_action :set_media_attachment
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rescue_from ActiveRecord::RecordInvalid, with: :not_found
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rescue_from Mastodon::UnexpectedResponseError, with: :not_found
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rescue_from Mastodon::NotPermittedError, with: :not_found
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rescue_from(*Mastodon::HTTP_CONNECTION_ERRORS, with: :internal_server_error)
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def show
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if @media_attachment.needs_redownload? && !reject_media?
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with_redis_lock("media_download:#{params[:id]}") do
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@media_attachment.reload # Reload once we have acquired a lock, in case the file was downloaded in the meantime
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redownload! if @media_attachment.needs_redownload?
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end
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end
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if requires_file_streaming?
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send_file(media_attachment_file.path, type: media_attachment_file.instance_read(:content_type), disposition: 'inline')
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else
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redirect_to media_attachment_file_path, allow_other_host: true
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end
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end
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private
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def set_media_attachment
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@media_attachment = MediaAttachment.attached.find(params[:id])
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authorize @media_attachment, :download?
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end
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def redownload!
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@media_attachment.download_file!
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@media_attachment.download_thumbnail!
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@media_attachment.created_at = Time.now.utc
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@media_attachment.save!
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end
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def attachment_style
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if @media_attachment.thumbnail.blank? && preview_requested?
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:small
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else
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:original
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end
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end
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def reject_media?
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@media_attachment.account.remote? && DomainBlock.reject_media?(@media_attachment.account.domain)
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end
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def media_attachment_file_path
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if @media_attachment.discarded?
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expiring_asset_url(media_attachment_file, 10.minutes)
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else
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full_asset_url(media_attachment_file.url(attachment_style))
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end
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end
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def media_attachment_file
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if @media_attachment.thumbnail.present? && preview_requested?
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@media_attachment.thumbnail
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else
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@media_attachment.file
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end
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end
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def preview_requested?
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request.path.end_with?('/small')
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end
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def requires_file_streaming?
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Paperclip::Attachment.default_options[:storage] == :filesystem && @media_attachment.discarded?
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end
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end
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