Module: OBF::Utils

Defined in:
lib/obf/utils.rb

Defined Under Namespace

Classes: Zipper

Class Method Summary collapse

Class Method Details

.as_progress_percent(a, b, &block) ⇒ Object 



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# File 'lib/obf/utils.rb', line 258

def self.as_progress_percent(a, b, &block)
  if Object.const_defined?('Progress')
    Progress.as_percent(a, b, &block)
  else
    block.call
  end
end

.build_zip(dest_path = nil, &block) ⇒ Object 



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# File 'lib/obf/utils.rb', line 241

def self.build_zip(dest_path=nil, &block)
  require 'zip'
  
  if !dest_path
    dest_path = OBF::Utils.temp_path(['archive', '.obz'])
  end
  Zip::File.open(dest_path, Zip::File::CREATE) do |zipfile|
    block.call(Zipper.new(zipfile))
  end
end

.get_url(url) ⇒ Object

def self.remote_to_boards(user, url) result = [] OBF::Utils.update_current_progress(0.1, :downloading_file) response = Typhoeus.get(url) file = Tempfile.new('stash') file.binmode file.write response.body file.close OBF::Utils.update_current_progress(0.2, :processing_file) OBF::Utils.as_progress_percent(0.2, 1.0) do if url.match(/.obz$/) || response.headers == 'application/obz' boards = OBF::CoughDrop.from_obz(file.path, => user) result = boards elsif url.match(/.obf$/) || response.headers == 'application/obf' board = OBF::CoughDrop.from_obf(file.path, => user) result = [board] else raise "Unrecognized file type: #responseresponse.headers['Content-Type']" end file.unlink end return result end



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# File 'lib/obf/utils.rb', line 69

def self.get_url(url)
  return nil unless url
  res = Typhoeus.get(URI.escape(url))
  extension = ""
  type = MIME::Types[res.headers['Content-Type']]
  type = type && type[0]
  extension = ("." + type.preferred_extension) if type && type.extensions && type.extensions.length > 0
  {
    'content_type' => res.headers['Content-Type'],
    'data' => res.body,
    'extension' => extension
  }
end

.image_base64(url) ⇒ Object 



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# File 'lib/obf/utils.rb', line 89

def self.image_base64(url)
  image = get_url(url)
  return nil unless image
  str = "data:" + image['content_type']
  str += ";base64," + Base64.strict_encode64(image['data'])
  str
end

.image_raw(url) ⇒ Object 



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# File 'lib/obf/utils.rb', line 83

def self.image_raw(url)
  image = get_url(url)
  return nil unless image
  image
end

.load_zip(path, &block) ⇒ Object 



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# File 'lib/obf/utils.rb', line 233

def self.load_zip(path, &block)
  require 'zip'

  Zip::File.open(path) do |zipfile|
    block.call(Zipper.new(zipfile))
  end
end

.obf_shell ⇒ Object 



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# File 'lib/obf/utils.rb', line 147

def self.obf_shell
  {
    'format' => 'open-board-0.1',
    'license' => {'type' => 'private'},
    'buttons' => [],
    'grid' => {
      'rows' => 0,
      'columns' => 0,
      'order' => [[]]
    },
    'images' => [],
    'sounds' => []
  }
end

.parse_grid(pre_grid) ⇒ Object 



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# File 'lib/obf/utils.rb', line 200

def self.parse_grid(pre_grid)
  pre_grid ||= {}
  grid = {
    'rows' => pre_grid['rows'] || 1,
    'columns' => pre_grid['columns'] || 1,
    'order' => pre_grid['order'] || [[nil]]
  }
  # TODO: parse order better
  grid
end

.parse_license(pre_license) ⇒ Object 



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# File 'lib/obf/utils.rb', line 187

def self.parse_license(pre_license)
  pre_license = {} unless pre_license.is_a?(Hash)
  license = {}
  ['type', 'copyright_notice_url', 'source_url', 'author_name', 'author_url', 'author_email', 'uneditable'].each do |attr|
    license[attr] = pre_license[attr] if pre_license[attr] != nil
  end
  license['type'] ||= 'private'
  license['copyright_notice_url'] ||= license['copyright_notice_link'] if license.key?('copyright_notice_link')
  license['source_url'] ||= license['source_link'] if license.key?('source_link')
  license['author_url'] ||= license['author_link'] if license.key?('author_link')
  license
end

.parse_obf(obj) ⇒ Object 



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# File 'lib/obf/utils.rb', line 162

def self.parse_obf(obj)
  json = obj
  if obj.is_a?(String)
    json = JSON.parse(obj)
  end
  ['images', 'sounds', 'buttons'].each do |key|
    json["#{key}_hash"] = json[key]
    if json[key].is_a?(Array)
      hash = {}
      json[key].each do |item|
        hash[item['id']] = item
      end
      json["#{key}_hash"] = hash
    else
      array = []
      json["#{key}_hash"].each do |id, item|
        item['id'] ||= id
        array << item
      end
      json[key] = array
    end
  end
  json
end

.save_image(image, zipper = nil) ⇒ Object 



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# File 'lib/obf/utils.rb', line 97

def self.save_image(image, zipper=nil)
  if image['data']
    if !image['content_type']
      image['content_type'] = image['data'].split(/;/)[0].split(/:/)[1]
    end
  elsif image['path'] && zipper
    image['raw_data'] = zipper.read(image['path'])
    if !image['content_type']
      types = MIME::Types.type_for(image['path'])
      image['content_type'] = types[0] && types[0].to_s
    end
  elsif image['url']
    url_data = get_url(image['url'])
    image['raw_data'] = url_data['data']
    image['content_type'] = url_data['content_type']
  elsif image['symbol']
    # not supported
  end
  type = MIME::Types[image['content_type']]
  type = type && type[0]
  extension = type && ("." + type.extensions.first)
  file = Tempfile.new(["image_stash", extension.to_s])
  file.binmode
  if image['data']
    str = Base64.strict_decode64(image['data'].split(/\,/, 2)[1])
    file.write str
  elsif image['raw_data']
    file.write image['raw_data']
  else
    raise "uh-oh"
  end
  file.close
  `convert #{file.path} -density 1200 -resize 300x300 -background none -gravity center -extent 300x300 #{file.path}.png`
  "#{file.path}.png"
end

.sound_base64(url) ⇒ Object 



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# File 'lib/obf/utils.rb', line 139

def self.sound_base64(url)
  sound = get_url(url)
  return nil unless sound
  str = "data:" + sound['content_type']
  str += ";base64," + Base64.strict_encode64(sound['data'])
  str
end

.sound_raw(url) ⇒ Object 



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# File 'lib/obf/utils.rb', line 133

def self.sound_raw(url)
  sound = get_url(url)
  return nil unless sound
  sound
end

.temp_path(*args) ⇒ Object 



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# File 'lib/obf/utils.rb', line 211

def self.temp_path(*args)
  file = Tempfile.new(*args)
  res = file.path
  file.unlink
  res
end

.update_current_progress(*args) ⇒ Object 



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# File 'lib/obf/utils.rb', line 252

def self.update_current_progress(*args)
  if Object.const_defined?('Progress')
    Progress.update_current_progress(*args)
  end
end