Class: MdsFileUtils::ZipAnalyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/mds_file_utils/zip_analyzer.rb

Constant Summary collapse

MAX_MDS_FILE_SIZE =

5MB

5242880
EXTENSION_REGEX = 
/\.zip\z/i
VALID_COMPOSITE_CONTENTS_REGEX = 
/(\.zip|\/|\\)\z/i

Instance Method Summary collapse

Constructor Details

#initialize(path, original_filename = path) ⇒ ZipAnalyzer

Returns a new instance of ZipAnalyzer.



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# File 'lib/mds_file_utils/zip_analyzer.rb', line 10

def initialize(path, original_filename=path)
  @path = path
  @original_filename = original_filename
end

Instance Method Details

#file_list ⇒ Object 



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# File 'lib/mds_file_utils/zip_analyzer.rb', line 32

def file_list
  @files ||= UnzipmeUnzipper.new(@path).file_list
end

#file_size ⇒ Object 



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# File 'lib/mds_file_utils/zip_analyzer.rb', line 44

def file_size
  File.size(@path)
end

#has_valid_extension? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mds_file_utils/zip_analyzer.rb', line 22

def has_valid_extension?
  return false if @original_filename.blank?
  @original_filename =~ EXTENSION_REGEX
end

#is_composite? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mds_file_utils/zip_analyzer.rb', line 27

def is_composite?
  return false unless valid_zip?
  file_list.count { | file | file =~ EXTENSION_REGEX } > 0
end

#non_mds_data_in_composite? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mds_file_utils/zip_analyzer.rb', line 36

def non_mds_data_in_composite?
  file_list.count { | entry | !( entry =~ VALID_COMPOSITE_CONTENTS_REGEX) } > 0
end

#too_big_for_mds? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mds_file_utils/zip_analyzer.rb', line 40

def too_big_for_mds?
  file_size > MAX_MDS_FILE_SIZE && !is_composite?
end

#valid_zip? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mds_file_utils/zip_analyzer.rb', line 15

def valid_zip?
  return false if @path.blank?
  return false unless File.exists?(@path)
  return false unless has_valid_extension?
  UnzipmeValidator.new(@path).valid_zip?
end