75 lines
3.1 KiB
Ruby
75 lines
3.1 KiB
Ruby
# frozen_string_literal: true
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class E621ThumbnailJob < ApplicationJob
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queue_as :default
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def perform(entry)
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infile = Tempfile.new(%W[e621-thumbnail-#{entry.stripped_md5} .webm])
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outfile = Tempfile.new(%W[e621-thumbnail-#{entry.stripped_md5} .#{entry.filetype}])
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cutfile = Tempfile.new(%W[e621-thumbnail-#{entry.stripped_md5} .cut.webm])
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palettefile = Tempfile.new(%W[e621-thumbnail-#{entry.stripped_md5} .palette.png])
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Timeout.timeout(120) do
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infile.binmode
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io = FileDownload.new("https://static1.e621.net/data/#{entry.stripped_md5[0..1]}/#{entry.stripped_md5[2..3]}/#{entry.stripped_md5}.webm").download!
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IO.copy_stream(io, infile)
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duration = `ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 #{infile.path}`.to_f
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offset = duration > 10 ? rand(0..(duration - 10)) : duration / 2
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if entry.filetype == "gif"
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`ffmpeg -y -i #{infile.path} -ss #{offset} -t 3 -c:v copy -an #{cutfile.path} 1>&2`
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`ffmpeg -y -i #{cutfile.path} -filter_complex "[0:v] palettegen" #{palettefile.path} 1>&2`
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`ffmpeg -y -i #{cutfile.path} -i #{palettefile.path} -filter_complex "[0:v][1:v] paletteuse" #{outfile.path} 1>&2`
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else
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`ffmpeg -y -i #{infile.path} -ss #{offset} -vframes 1 #{outfile.path} 1>&2`
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end
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ImageOptim.new.optimize_image!(outfile.path)
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Websites.config.e621_thumbnails_storage.upload("/#{entry.stripped_md5}.#{entry.filetype}", outfile)
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Websites.config.e621_thumbnails_backup_storage.put("/#{entry.stripped_md5}.#{entry.filetype}", outfile)
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entry.update!(status: "complete")
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execute_webhook(entry, title: "Thumbnail Generated (#{entry.filetype})")
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end
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rescue Timeout::Error
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entry.update!(status: "timeout")
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execute_webhook(entry, title: "Thumbnail Generation Timed Out (#{entry.filetype})", error: true)
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rescue StandardError => e
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code = Requests::Pastebin.default.create(title: "E621 Thumbnail Generation Error (#{entry.stripped_md5})", content: "#{e}\n#{e.backtrace&.join("\n") || ''}")
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entry.update!(status: "error", error_code: code)
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execute_webhook(entry, title: "Thumbnail Generation Errored (#{entry.filetype})", body: "Backtrace: https://pastebin.com/#{code}", error: true)
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raise(e)
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ensure
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[infile, outfile, palettefile, cutfile].each do |file|
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file&.close
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file&.unlink
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end
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end
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def execute_webhook(entry, title:, body: "", error: false)
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if error
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entry.update(expires_at: 5.minutes.from_now)
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E621ThumbnailErrorCleanupJob.set(wait: 5.minutes).perform_later(entry)
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end
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thumb = {}
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if entry.complete?
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thumb = {
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thumbnail: {
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url: entry.url,
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},
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}
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end
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Websites.config.e621_thumbnails_webhook.execute({
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embeds: [
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{
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title: title,
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description: <<~DESC,
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Key: ##{entry.api_key_id} (`#{entry.api_key.application_name}`)
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Post: [##{entry.post_id}](https://e621.net/posts/#{entry.post_id})
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#{body}
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DESC
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color: error ? 0xDC143C : 0x008000,
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timestamp: Time.now.iso8601,
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**thumb,
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},
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],
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})
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end
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end
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