35 行
857 B
Ruby
35 行
857 B
Ruby
require 'digest'
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class MaterialFileSha256
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def self.from_blob blob, allow_download: false
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sha256 = blob.metadata['sha256']
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return sha256 if sha256.present?
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return nil unless allow_download
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begin
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blob.open do |file|
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sha256 = Digest::SHA256.file(file.path).hexdigest
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blob.metadata['sha256'] = sha256
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blob.save! if blob.changed?
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sha256
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end
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rescue ActiveStorage::FileNotFoundError, ArgumentError => error
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Rails.logger.warn(
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"MaterialFileSha256.from_blob failed for blob_id=#{blob.id}: " \
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"#{error.class}: #{error.message}",
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)
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nil
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end
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end
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def self.from_upload upload
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tempfile = upload&.tempfile
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return nil unless tempfile
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tempfile.rewind
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Digest::SHA256.file(tempfile.path).hexdigest.tap do
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tempfile.rewind
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end
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end
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end
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