Class: Hydra::Works::VirusScanner

Inherits:
Object
  • Object
show all
Defined in:
lib/hydra/works/virus_scanner.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ VirusScanner

Returns a new instance of VirusScanner.



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# File 'lib/hydra/works/virus_scanner.rb', line 26

def initialize(file)
  @file = file
end

Instance Attribute Details

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/hydra/works/virus_scanner.rb', line 18

def file
  @file
end

Class Method Details

.infected?(file) ⇒ Boolean

Parameters:

  • file (String)

Returns:

  • (Boolean) 


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# File 'lib/hydra/works/virus_scanner.rb', line 22

def self.infected?(file)
  new(file).infected?
end

Instance Method Details

#clam_av_scanner ⇒ Object 



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# File 'lib/hydra/works/virus_scanner.rb', line 42

def clam_av_scanner
  Deprecation.warn(self, "The ClamAV has been replaced by Clamby " \
    "as the supported virus scanner for hydra-works. " \
    "ClamAV support will be removed in hydra-works 2.0 ")
  scan_result = ClamAV.instance.method(:scanfile).call(file)
  return false if scan_result == 0
  warning "A virus was found in #{file}: #{scan_result}"
  true
end

#clamby_scanner ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hydra/works/virus_scanner.rb', line 53

def clamby_scanner
  scan_result = Clamby.virus?(file)
  warning("A virus was found in #{file}") if scan_result
  scan_result
end

#infected? ⇒ Boolean

Override this method to use your own virus checking software

Returns:

  • (Boolean) 


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# File 'lib/hydra/works/virus_scanner.rb', line 32

def infected?
  if defined?(Clamby)
    clamby_scanner
  elsif defined?(ClamAV)
    clam_av_scanner
  else
    null_scanner
  end
end

#null_scanner ⇒ Object

Always return zero if there’s nothing available to check for viruses. This means that we assume all files have no viruses because we can’t conclusively say if they have or not.



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# File 'lib/hydra/works/virus_scanner.rb', line 61

def null_scanner
  warning "Unable to check #{file} for viruses because no virus scanner is defined"
  false
end