Class: RailsPulse::Middleware::AssetServer

Inherits:
Rack::Static
  • Object
show all
Defined in:
lib/rails_pulse/middleware/asset_server.rb

Constant Summary collapse

MIME_TYPES = 
{
  ".css" => "text/css",
  ".js" => "application/javascript",
  ".map" => "application/json",
  ".svg" => "image/svg+xml"
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, root, options = {}) ⇒ AssetServer

Returns a new instance of AssetServer.



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# File 'lib/rails_pulse/middleware/asset_server.rb', line 13

def initialize(app, root, options = {})
  @logger = Rails.logger if defined?(Rails)
  # Rack::Static expects (app, options) where options[:root] is the root path
  options = options.merge(root: root) if root.is_a?(String) || root.is_a?(Pathname)
  super(app, options)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rails_pulse/middleware/asset_server.rb', line 20

def call(env)
  # Only handle requests for Rails Pulse assets
  unless rails_pulse_asset_request?(env)
    return @app.call(env)
  end

  # Log asset requests for debugging
  @logger&.debug "[Rails Pulse] Asset request: #{env['PATH_INFO']}"

  # Set proper MIME type based on file extension
  set_content_type(env)

  # Call parent Rack::Static with error handling
  begin
    status, headers, body = super(env)

    # Add immutable cache headers for successful responses
    if status == 200
      headers.merge!(cache_headers)
      @logger&.debug "[Rails Pulse] Asset served successfully: #{env['PATH_INFO']}"
    elsif status == 404
      log_missing_asset(env["PATH_INFO"]) if @logger
    end

    [ status, headers, body ]
  rescue => e
    log_asset_error(env["PATH_INFO"], e) if @logger
    @app.call(env)
  end
end