Class: FlashTool::FlashTool

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

Overview

This class provides usefull utilities for getting informations from flash files

Important

Method FlashTool.text and options FlashTool.method_missing(“text”, “file”) and swfdump(“file”,“text”) on same system don’t work appropriate instead use method parse_text

Class Method Summary collapse

Class Method Details

.flash_info(file) ⇒ Object

Returns hash value with basic flash parameters Keys are [width, rate, height, frames] and values are kind of string



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# File 'lib/flash_tool.rb', line 57

def flash_info(file)
  args = ['width', 'rate', 'height', 'frames']
  data = swfdump(file, args)
  data.gsub!(/(-X)/, "width ")
  data.gsub!(/(-Y)/, "height ")
  data.gsub!(/(-r)/, "rate ")
  data.gsub!(/(-f)/, "frames ")

  return Hash[*data.split(' ')]

end

.method_missing(option, file) ⇒ Object

Call swfdump commands in shorter way Can be used any option from swfdump command in casess: width, heihght and frames returns Integer in case rate returns Float in all other casess retruns String



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# File 'lib/flash_tool.rb', line 41

def method_missing(option, file)
  text = self.swfdump(file, option)
  option = option.to_s
  if option == "width" || option == 'height' || option == 'frames'
    return text.split(' ').last.to_i
  elsif option == 'rate'
    return text.split(' ').last.to_f
  else
    return text
  end
end

.parse_text(file) ⇒ Object

This method parse text from swf file. File must have extension swf

Raises:



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# File 'lib/flash_tool.rb', line 20

def parse_text(file)
  # something is bad with this program don't send errors, and we must check for errors
  # we must check file first
  # by documetation swfdump --text need to do this but
  raise FlashToolError, "File missing path: #{file}" unless File.exist?(file)
  raise FlashToolError, "Wrong file type SWF path: #{file} "  unless file =~ /(.swf)$/i
  command = "swfstrings #{file}"
  output = `#{command} 2>&1`
  # if file have appropiate name but is something is wrong with him
  raise FlashToolError, output if output =~/(errors.)$/
  return output
end

.swfdump(file, option = nil) ⇒ Object

This method is very similar to swfdump command www.swftools.org/swfdump.html Use longer options for this commands without – DON’T use option text that option don’t work

Examples

FlashTool.swfdump('test.swf', 'rate')

FlashTool.swfdump('test.swf', ['rate','width','height'])



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# File 'lib/flash_tool.rb', line 78

def swfdump(file, option=nil)
  command = 'swfdump'
  if option
    if option.kind_of? Array
      option.collect! { |a|   "--#{a}" }
      option = option.join(' ')
    else
      option = "--#{option}"
    end
  end
  command = "#{command} #{option} #{file}"
  output = `#{command} 2>&1`
  if $?.exitstatus != 0
    raise FlashToolError, "SWF command : #{command.inspect} failed : #{{:status_code => $?, :output => output}.inspect}"
  else
    return output
  end
end