Class: Proscenium::Middleware

Inherits:
Object
  • Object
show all
Extended by:
ActiveSupport::Autoload
Defined in:
lib/proscenium/middleware.rb,
lib/proscenium/middleware/base.rb,
lib/proscenium/middleware/esbuild.rb,
lib/proscenium/middleware/ruby_gems.rb

Defined Under Namespace

Classes: Base, BuildError, Esbuild, RubyGems

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Middleware

Returns a new instance of Middleware.



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# File 'lib/proscenium/middleware.rb', line 14

def initialize(app)
  @app = app

  chunks_path = Rails.public_path.join('assets').to_s
  headers = Rails.application.config.public_file_server.headers || {}
  @chunk_handler = ::ActionDispatch::FileHandler.new(chunks_path, headers:)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/proscenium/middleware.rb', line 22

def call(env)
  request = ActionDispatch::Request.new(env)

  return @app.call(env) if !request.get? && !request.head?

  if request.path.match?(%r{^/_asset_chunks/})
    response = Rack::Response[*@chunk_handler.attempt(request.env)]
    response.etag = request.path.match(/-\$([a-z0-9]+)\$/i)[1]

    if Proscenium.config.cache_query_string && Proscenium.config.cache_max_age
      response.cache! Proscenium.config.cache_max_age
    end

    if request.fresh?(response)
      response.status = 304
      response.body = []
    end

    return response.finish
  end

  attempt(request) || @app.call(env)
end