Class: Spyder::Web::FileServer

Inherits:
Object
  • Object
show all
Defined in:
lib/spyder/web/file_server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(paths, index: nil) ⇒ FileServer

Returns a new instance of FileServer.



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# File 'lib/spyder/web/file_server.rb', line 9

def initialize(paths, index: nil)
  @default_index = index
  @base_paths = Array(paths).map do |path|
    File.expand_path(File.join(Dir.pwd, path))
  end
end

Instance Attribute Details

#base_paths ⇒ Object (readonly)

Returns the value of attribute base_paths.



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# File 'lib/spyder/web/file_server.rb', line 6

def base_paths
  @base_paths
end

#default_index ⇒ Object (readonly)

Returns the value of attribute default_index.



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# File 'lib/spyder/web/file_server.rb', line 7

def default_index
  @default_index
end

Instance Method Details

#call(request) ⇒ Object 



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# File 'lib/spyder/web/file_server.rb', line 16

def call(request)
  return unless request.verb == 'GET'

  input_path = request.path
  input_path = @default_index if request.path == '/' && @default_index

  req_path = safe_request_path(input_path)
  full_path = nil
  return unless @base_paths.any? do |base|
    fp = File.join(base, *req_path)
    next unless File.file?(fp)
    full_path = fp

    true
  end

  st = File.readable?(full_path) ? File.stat(full_path) : nil

  return unless st && %w[file link].include?(st.ftype)

  etag = "\"#{"%xT-%x0" % [st.mtime, st.size]}\""

  resp = serve_not_modified_response(request, st, etag)
  return resp if resp

  resp = Spyder::Response.new
  resp.add_standard_headers
  resp.set_header 'last-modified', st.mtime.httpdate
  resp.set_header 'etag', etag
  resp.set_header 'cache-control', 'public, must-revalidate, max-age=0'

  File.open full_path do |fp|
    mime = Marcel::MimeType.for(fp)
    if mime == 'application/octet-stream' || mime == 'text/plain'
      mime = Marcel::MimeType.for(name: req_path.last)
    end

    resp.set_header('content-type', mime) if mime

    fp.rewind
    resp.body = fp.read
  end

  resp
end