Class: Awestruct::Rack::App

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

Instance Method Summary collapse

Constructor Details

#initialize(doc_root) ⇒ App

Returns a new instance of App.



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# File 'lib/awestruct/rack/app.rb', line 6

def initialize(doc_root)
  @doc_root = doc_root
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/awestruct/rack/app.rb', line 10

def call(env)
  path = env['PATH_INFO']
  fs_path = File.join( @doc_root, path )

  if File.directory?(fs_path)
    if !(path =~ %r(/$))
      return [ 301,
               { 'location'.freeze => File.join(path, '') },
               ["Redirecting to: #{path}"] ]
    elsif File.file?(File.join(fs_path, 'index.html'))
      fs_path = File.join( fs_path, 'index.html' )
    end
  end

  # There must be a Content-Type, except when the Status is 1xx,
  # 204 or 304, in which case there must be none given.
  #
  # The Body must respond to each and must only yield String
  # values. The Body itself should not be an instance of String,
  # as this will break in Ruby 1.9.
  if File.file?(fs_path)
    body = read_content( fs_path )
    content_type = ::Rack::Mime.mime_type( File.extname(fs_path) )
    length = body.size.to_s
    [ 200,
      {'Content-Type'.freeze => content_type, 'Content-Length'.freeze => length},
      [body] ]
  else
    body, content_type = read_error_document(path)
    length = body.size.to_s
    [ 404,
      {'Content-Type'.freeze => content_type || 'text/plain', 'Content-Length'.freeze => length},
      [body] ]
  end
end

#read_content(path) ⇒ Object 



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# File 'lib/awestruct/rack/app.rb', line 64

def read_content( path )
  input_stream = IO.open(IO.sysopen(path, 'rb'), 'rb')
  result = input_stream.read
  return result
ensure
  input_stream.close
end

#read_error_document(path) ⇒ Object 



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# File 'lib/awestruct/rack/app.rb', line 46

def read_error_document( path )
  doc_path = nil
  htaccess = File.join( @doc_root, '.htaccess' )
  if File.file?(htaccess)
    File.open( htaccess ).each_line do |line|
      if line =~ %r(^.*ErrorDocument[ \t]+404[ \t]+(.+)$)
        doc_path = $1
      end
    end
  end
  if doc_path
    fs_doc_path = File.join( @doc_root, doc_path )
    return [read_content( fs_doc_path ), ::Rack::Mime.mime_type( File.extname(fs_doc_path) )] if File.file?( fs_doc_path )
  end
  "404: Not Found: #{path}"
end