This middleware will attempt to return the contents of a file's body from disk in the response. If a file is not found on disk, the request will be delegated to the application stack. This middleware is commonly initialized to serve assets from a server's public/ directory.
This middleware verifies the path to ensure that only files living in the root directory can be rendered. A request cannot produce a directory traversal using this middleware. Only 'GET' and 'HEAD' requests will result in a file being returned.
Methods
Class Public methods
new(app, path, index: "index", headers: {})
📝 Source code
# File actionpack/lib/action_dispatch/middleware/static.rb, line 111
def initialize(app, path, index: "index", headers: {})
@app = app
@file_handler = FileHandler.new(path, index: index, headers: headers)
endInstance Public methods
call(env)
📝 Source code
# File actionpack/lib/action_dispatch/middleware/static.rb, line 116
def call(env)
req = Rack::Request.new env
if req.get? || req.head?
path = req.path_info.chomp("/".freeze)
if match = @file_handler.match?(path)
req.path_info = match
return @file_handler.serve(req)
end
end
@app.call(req.env)
end