Class: Lux::Response::File

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

Defined Under Namespace

Classes: OPTS

Constant Summary collapse

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(in_opts = {}) ⇒ File

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



58
59
60
61
62
63
64
65
66
 
# File 'lib/lux/response/lib/file.rb', line 58

def initialize in_opts = {}
  opts = OPTS.new **in_opts
  opts.disposition ||= opts.inline.class == TrueClass ? 'inline' : 'attachment'
  opts.file = Pathname.new(opts.file) unless opts.file.class == Pathname
  opts.path = opts.file.to_s
  opts.ext  = opts.path.include?('.') ? opts.path.split('.').last.to_sym : nil

  @opts = opts
end

Class Method Details

.deliver_from_current ⇒ Object 



7
8
9
10
11
12
13
 
# File 'lib/lux/response/lib/file.rb', line 7

def deliver_from_current
  path = './public' + Lux.current.request.path
  ext = path.split('.').last
  return unless ext.length > 1 && ext.length < 5
  rack_file = new file: path, inline: true
  rack_file.send if rack_file.is_static_file?
end

.type(name) ⇒ Object 



15
16
17
 
# File 'lib/lux/response/lib/file.rb', line 15

def type name
  MIMME_TYPES[name.to_sym]
end

Instance Method Details

#etag(key) ⇒ Object 



76
77
78
79
 
# File 'lib/lux/response/lib/file.rb', line 76

def etag key
  response.headers['etag'] = '"%s"' % key
  response.body('not-modified', status: 304) if request.env['HTTP_IF_NONE_MATCH'] == key
end

#is_static_file? ⇒ Boolean

Returns:



71
72
73
74
 
# File 'lib/lux/response/lib/file.rb', line 71

def is_static_file?
  return false unless @opts.ext
  @opts.file.exist?
end

#send ⇒ Object 



81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/lux/response/lib/file.rb', line 81

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

  response.content_type(@opts.content_type || MIMME_TYPES[@opts.ext || '_'] || 'application/octet-stream')
  response.headers['access-control-allow-origin'] ||= '*'

  if @opts.content
    etag Crypt.sha1 @opts.content
    response.body @opts.content
  else
    raise Lux::Error.not_found('File not found') unless @opts.file.exist?
    file_mtime = @opts.file.mtime.utc.to_s
    response.headers['last-modified'] = file_mtime
    etag Crypt.sha1(@opts.path + (@opts.content || file_mtime.to_s))
    response.body @opts.file.read
  end
end