68 lines
2.3 KiB
Ruby
68 lines
2.3 KiB
Ruby
require "image_sorcery"
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module Jobs
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class GenerateAvatars < Jobs::Base
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def execute(args)
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raise Discourse::ImageMagickMissing.new unless system("command -v convert >/dev/null;")
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upload_id, user_id = args[:upload_id], args[:user_id]
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raise Discourse::InvalidParameters.new(:upload_id) if upload_id.blank?
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raise Discourse::InvalidParameters.new(:user_id) if user_id.blank?
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upload = Upload.where(id: upload_id).first
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user = User.where(id: user_id).first
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return if upload.nil? || user.nil?
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external_copy = Discourse.store.download(upload) if Discourse.store.external?
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original_path = if Discourse.store.external?
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external_copy.path
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else
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Discourse.store.path_for(upload)
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end
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source = original_path
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# extract the first frame when it's a gif
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source << "[0]" unless SiteSetting.allow_animated_avatars
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image = ImageSorcery.new(source)
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extension = File.extname(original_path)
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[120, 45, 32, 25, 20].each do |s|
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# handle retina too
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[s, s * 2].each do |size|
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begin
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# create a temp file with the same extension as the original
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temp_file = Tempfile.new(["discourse-avatar", extension])
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# create a transparent centered square thumbnail
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if image.convert(temp_file.path,
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gravity: "center",
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thumbnail: "#{size}x#{size}^",
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extent: "#{size}x#{size}",
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background: "transparent")
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if Discourse.store.store_avatar(temp_file, upload, size).blank?
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Rails.logger.error("Failed to store avatar #{size} for #{upload.url} from #{source}")
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end
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else
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Rails.logger.error("Failed to create avatar #{size} for #{upload.url} from #{source}")
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end
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ensure
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# close && remove temp file
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temp_file && temp_file.close!
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end
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end
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end
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# make sure we remove the cached copy from external stores
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external_copy.close! if Discourse.store.external?
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# attach the avatar to the user
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user.uploaded_avatar_template = Discourse.store.avatar_template(upload)
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user.save!
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end
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end
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end
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