Class: Libis::Format::Converter::PdfProtecter

Inherits:
Base
  • Object
show all
Defined in:
lib/libis/format/converter/pdf_protecter.rb

Overview

noinspection DuplicatedCode

Constant Summary collapse

OPTIONS_TABLE = 
{
  edit_password: 'edit-password',
  open_password: 'open-password',
  fillin: 'fill-in',
}

Instance Attribute Summary

Attributes inherited from Base

#flags, #options

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

category, #check_file_exist, inherited, using_temp, #using_temp

Constructor Details

#initialize ⇒ PdfProtecter

Returns a new instance of PdfProtecter.



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 29

def initialize
  super
  @options[:edit_password] = SecureRandom.urlsafe_base64(31)
end

Class Method Details

.input_types ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 16

def self.input_types
  [:PDF]
end

.output_types(format = nil) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 20

def self.output_types(format = nil)
  return [] unless input_types.include?(format) if format
  [:PDF, :PDFA]
end

Instance Method Details

#assist(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 42

def assist(v)
  @flags[:assist] = !!v
end

#comments(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 54

def comments(v)
  @flags[:comments] = !!v
end

#convert(source, target, format, opts = {}) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 70

def convert(source, target, format, opts = {})
  super

  result = nil

  unless @options.empty?
    result = convert_pdf(source, target)
    return nil unless result
    source = result
  end

  if format == :PDFA and source
    result = pdf_to_pdfa(source, target)
  end

  result

end

#convert_pdf(source, target) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 95

def convert_pdf(source, target)

  using_temp(target) do |tmpname|
    result = Libis::Format::Tool::PdfProtect.run(
      source, tmpname,
      [
        @options.map { |k, v|
          if v.nil?
            nil
          else
            k = OPTIONS_TABLE[k] || k
            ["--#{k}", v.to_s]
          end
        },
        @flags.map { |k, v|
          if !v
            nil
          else
            k = OPTIONS_TABLE[k] || k
            "--#{k}"
          end
        }
      ].compact.flatten
    )
    unless result[:err].empty?
      error("Pdf conversion encountered errors:\n%s", result[:err].join(join("\n")))
      next nil
    end
    tmpname
  end

end

#copy(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 46

def copy(v)
  @flags[:copy] = !!v
end

#edit(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 66

def edit(v)
  @flags[:edit] = !!v
end

#edit_password(pwd) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 34

def edit_password(pwd)
  @options[:edit_password] = pwd
end

#fillin(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 58

def fillin(v)
  @flags[:fillin] = !!v
end

#manage(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 62

def manage(v)
  @flags[:manage] = !!v
end

#open_password(pwd) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 38

def open_password(pwd)
  @options[:open_password] = pwd
end

#pdf_protect(_) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 25

def pdf_protect(_)
  #force usage of this converter
end

#pdf_to_pdfa(source, target) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 128

def pdf_to_pdfa(source, target)

  using_temp(target) do |tmpname|
    result = Libis::Format::Tool::PdfToPdfa.run source, tmpname
    if result[:status] != 0
      error("Pdf/A conversion encountered errors:\n%s", result[:err].join("\n"))
      next nil
    else
      warn("Pdf/A conversion warnings:\n%s", result[:err].join("\n")) unless result[:err].empty?
    end
    tmpname
  end

end

#print(v) ⇒ Object 



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# File 'lib/libis/format/converter/pdf_protecter.rb', line 50

def print(v)
  @flags[:print] = !!v
end