27 lines
627 B
Ruby
27 lines
627 B
Ruby
# frozen_string_literal: true
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require_relative "uncompressed"
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module UnpackStrategy
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# Strategy for unpacking Microsoft Office documents.
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class MicrosoftOfficeXml < Uncompressed
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using Magic
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def self.extensions
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[
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".doc", ".docx",
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".ppt", ".pptx",
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".xls", ".xlsx"
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]
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end
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def self.can_extract?(path)
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return false unless Zip.can_extract?(path)
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# Check further if the ZIP is a Microsoft Office XML document.
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path.magic_number.match?(/\APK\003\004/n) &&
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path.magic_number.match?(%r{\A.{30}(\[Content_Types\]\.xml|_rels/\.rels)}n)
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end
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end
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end
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