Class: Servel::App

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

Constant Summary collapse

UTF_8 = 
Encoding::UTF_8
SCRIPT_NAME = 
Rack::SCRIPT_NAME
PATH_INFO = 
Rack::PATH_INFO

Instance Method Summary collapse

Constructor Details

#initialize(root) ⇒ App

Returns a new instance of App.



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# File 'lib/servel/app.rb', line 6

def initialize(root)
  @root = Pathname.new(root)
  @file_server = Rack::File.new(root.to_s)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/servel/app.rb', line 11

def call(env)
  env[SCRIPT_NAME] = try_encode(env[SCRIPT_NAME])
  env[PATH_INFO] = try_encode(env[PATH_INFO])

  url_root = env[SCRIPT_NAME]
  url_path = clean_url_path(env[PATH_INFO])

  return redirect("#{url_root}/") if env[PATH_INFO] == ""

  fs_path = @root + url_path[1..-1]

  return @file_server.call(env) if fs_path.file?

  return redirect("#{url_root}#{url_path}/") unless env[PATH_INFO].end_with?("/")

  return [404, {}, []] unless fs_path.exist?

  Servel::Index.new(url_root: url_root, url_path: url_path, fs_path: fs_path).render
end

#clean_url_path(path) ⇒ Object 



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# File 'lib/servel/app.rb', line 35

def clean_url_path(path)
  url_path = Rack::Utils.unescape_path(path)
  raise unless Rack::Utils.valid_path?(url_path)
  Rack::Utils.clean_path_info(url_path)
end

#redirect(location) ⇒ Object 



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# File 'lib/servel/app.rb', line 31

def redirect(location)
  [302, { "Location" => Rack::Utils.escape_path(location) }, []]
end

#try_encode(string) ⇒ Object 



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# File 'lib/servel/app.rb', line 41

def try_encode(string)
  return string if string.encoding == UTF_8
  string.encode(UTF_8)
rescue Encoding::UndefinedConversionError, Encoding::InvalidByteSequenceError
  string
end