Class: Lux::Response::File

Inherits:
Object show all
Defined in:
lib/lux/response/lib/file.rb

Constant Summary collapse

MIMME_TYPES = 
{
  txt:  'text/plain',
  html: 'text/html',
  gif:  'image/gif',
  jpg:  'image/jpeg',
  jpeg: 'image/jpeg',
  png:  'image/png',
  ico:  'image/png', # image/x-icon
  css:  'text/css',
  map:  'application/json',
  js:   'application/javascript',
  gz:   'application/x-gzip',
  zip:  'application/x-gzip',
  svg:  'image/svg+xml',
  mp3:  'application/mp3',
  woff:  'application/x-font-woff',
  woff2: 'application/x-font-woff',
  ttf:   'application/font-ttf',
  eot:   'application/vnd.ms-fontobject',
  otf:   'application/font-otf',
  doc:   'application/msword'
}

Instance Method Summary collapse

Constructor Details

#initialize(file, in_opts = {}) ⇒ File

all parametars are optional :name - file name :cache - client cache in seconds :content_type - string type :inline - sets disposition to inline if true :disposition - inline or attachment :content - raw file data



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# File 'lib/lux/response/lib/file.rb', line 35

def initialize file, in_opts={}
  opts = in_opts.to_opts :name, :cache, :content_type, :inline, :disposition, :content
  opts.disposition ||= opts.inline.class == TrueClass ? 'inline' : 'attachment'
  opts.cache         = true if opts.cache.nil?

  file = 'public/%s' % file unless file[0, 1] == '/'

  @ext  = file.include?('.') ? file.split('.').last.to_sym : nil
  @file = file
  @opts = opts
end

Instance Method Details

#is_static_file? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/lux/response/lib/file.rb', line 50

def is_static_file?
  return false unless @ext
  File.exist?(@file)
end

#send ⇒ Object 



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# File 'lib/lux/response/lib/file.rb', line 55

def send
  file = File.exist?(@file) ? @file : Lux.root.join("public#{@file}").to_s

  raise Lux::Error.not_found('Static file not found') unless File.exists?(file)

  response.content_type(@opts.content_type || MIMME_TYPES[@ext || '_'] || 'application/octet-stream')

  file_mtime = File.mtime(file).utc.to_s
  key        = Crypt.sha1(file + (@opts.content || file_mtime.to_s))

  if @opts.disposition == 'attachment'
    @opts.name ||= @file.split('/').last
    response.headers['content-disposition'] = 'attachment; filename=%s' % @opts.name
  end

  response.headers['cache-control'] = 'max-age=%d, public' % (@opts.cache ? 31536000 : 0)
  response.headers['etag']          = '"%s"' % key
  response.headers['last-modified'] = file_mtime

  # IF etags match, returnfrom cache
  if request.env['HTTP_IF_NONE_MATCH'] == key
    response.body('not-modified', 304)
  else
    response.body @opts.content || File.read(file)
  end
end