Class: OMF::Web::Rack::MultiFile

Inherits:
Rack::File
  • Object
show all
Defined in:
lib/omf-web/rack/multi_file.rb

Overview

Rack::MultiFile serves files which it looks for below an array of roots directories given, according to the path info of the Rack request.

Handlers can detect if bodies are a Rack::File, and use mechanisms like sendfile on the path.

Instance Method Summary collapse

Constructor Details

#initialize(roots, cache_control = nil) ⇒ MultiFile

Returns a new instance of MultiFile.



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# File 'lib/omf-web/rack/multi_file.rb', line 13

def initialize(roots, cache_control = nil)
  super nil, cache_control
  @roots = roots
end

Instance Method Details

#_call(env) ⇒ Object 



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# File 'lib/omf-web/rack/multi_file.rb', line 18

def _call(env)
  @path_info = ::Rack::Utils.unescape(env["PATH_INFO"])
  parts = @path_info.split SEPS

  return fail(403, "Forbidden")  if parts.include? ".."

  @roots.each do |root|
    @path = F.join(root, *parts)
    #puts ">>>> CHECKING #{@path}"
    available = begin
      F.file?(@path) && F.readable?(@path)
    rescue SystemCallError
      false
    end

    if available
      return serving(env)
    end
  end
  fail(404, "File not found: #{@path_info}")
end