108 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| class MediaAttachment < ApplicationRecord
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|   self.inheritance_column = nil
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| 
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|   enum type: [:image, :gifv, :video]
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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|   validates :account, presence: true
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| 
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|   scope :local, -> { where(remote_url: '') }
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|   default_scope { order('id asc') }
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| 
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|   def local?
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|     remote_url.blank?
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|   end
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| 
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|   def file_remote_url=(url)
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|     self.file = URI.parse(url)
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|   end
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| 
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|   def to_param
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|     shortcode
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|   end
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| 
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|   before_create :set_shortcode
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|   before_post_process :set_type
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| 
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|   class << self
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|     private
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| 
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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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| 
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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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| 
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|   private
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| 
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|   def set_shortcode
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|     return unless local?
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| 
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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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| 
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|   def set_type
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|     self.type = VIDEO_MIME_TYPES.include?(file_content_type) ? :video : :image
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|   end
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| end
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