149 lines
3.9 KiB
Ruby
149 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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class MediaAttachment < ApplicationRecord
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self.inheritance_column = nil
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enum type: [:image, :gifv, :video, :unknown]
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IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
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VIDEO_MIME_TYPES = ['video/webm', 'video/mp4'].freeze
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IMAGE_STYLES = { original: '1280x1280>', small: '400x400>' }.freeze
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VIDEO_STYLES = {
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small: {
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convert_options: {
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output: {
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vf: 'scale=\'min(400\, iw):min(400\, ih)\':force_original_aspect_ratio=decrease',
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},
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},
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format: 'png',
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time: 0,
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},
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}.freeze
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belongs_to :account, inverse_of: :media_attachments
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belongs_to :status, inverse_of: :media_attachments
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has_attached_file :file,
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styles: ->(f) { file_styles f },
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processors: ->(f) { file_processors f },
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convert_options: { all: '-quality 90 -strip' }
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validates_attachment_content_type :file, content_type: IMAGE_MIME_TYPES + VIDEO_MIME_TYPES
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validates_attachment_size :file, less_than: 8.megabytes
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validates :account, presence: true
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scope :attached, -> { where.not(status_id: nil) }
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scope :local, -> { where(remote_url: '') }
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default_scope { order('id asc') }
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def local?
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remote_url.blank?
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end
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def file_remote_url=(url)
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self.file = URI.parse(Addressable::URI.parse(url).normalize.to_s)
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end
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def to_param
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shortcode
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end
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before_create :set_shortcode
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before_post_process :set_type_and_extension
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before_save :set_meta
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class << self
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private
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def file_styles(f)
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if f.instance.file_content_type == 'image/gif'
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{
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small: IMAGE_STYLES[:small],
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original: {
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format: 'mp4',
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convert_options: {
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output: {
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'movflags' => 'faststart',
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'pix_fmt' => 'yuv420p',
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'vf' => 'scale=\'trunc(iw/2)*2:trunc(ih/2)*2\'',
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'vsync' => 'cfr',
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'b:v' => '1300K',
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'maxrate' => '500K',
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'crf' => 6,
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},
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},
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},
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}
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elsif IMAGE_MIME_TYPES.include? f.instance.file_content_type
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IMAGE_STYLES
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else
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VIDEO_STYLES
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end
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end
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def file_processors(f)
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if f.file_content_type == 'image/gif'
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[:gif_transcoder]
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elsif VIDEO_MIME_TYPES.include? f.file_content_type
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[:video_transcoder]
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else
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[:thumbnail]
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end
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end
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end
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private
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def set_shortcode
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self.type = :unknown if file.blank? && type.blank?
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return unless local?
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loop do
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self.shortcode = SecureRandom.urlsafe_base64(14)
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break if MediaAttachment.find_by(shortcode: shortcode).nil?
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end
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end
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def set_type_and_extension
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self.type = VIDEO_MIME_TYPES.include?(file_content_type) ? :video : :image
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extension = appropriate_extension
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basename = Paperclip::Interpolations.basename(file, :original)
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file.instance_write :file_name, [basename, extension].delete_if(&:empty?).join('.')
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end
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def set_meta
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meta = populate_meta
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return if meta == {}
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file.instance_write :meta, meta
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end
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def populate_meta
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meta = {}
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file.queued_for_write.each do |style, file|
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begin
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geo = Paperclip::Geometry.from_file file
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meta[style] = {
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width: geo.width.to_i,
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height: geo.height.to_i,
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size: "#{geo.width.to_i}x#{geo.height.to_i}",
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aspect: geo.width.to_f / geo.height.to_f,
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}
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rescue Paperclip::Errors::NotIdentifiedByImageMagickError
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meta[style] = {}
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end
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end
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meta
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end
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def appropriate_extension
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mime_type = MIME::Types[file.content_type]
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extensions_for_mime_type = mime_type.empty? ? [] : mime_type.first.extensions
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original_extension = Paperclip::Interpolations.extension(file, :original)
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extensions_for_mime_type.include?(original_extension) ? original_extension : extensions_for_mime_type.first
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end
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end
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