class Rack::MethodOverride

# File lib/rack/method_override.rb, line 23
def initialize(app, allowed_methods: PRIV_ALLOWED_METHODS, allowed_overrides: PRIV_HTTP_METHODS)
  @app = app
  @allowed_methods = allowed_methods
  @allowed_overrides = allowed_overrides
end

# File lib/rack/method_override.rb, line 29
def call(env)
  if allowed_methods.include?(env[REQUEST_METHOD])
    method = method_override(env)
    if allowed_overrides.include?(method)
      env[RACK_METHODOVERRIDE_ORIGINAL_METHOD] = env[REQUEST_METHOD]
      env[REQUEST_METHOD] = method
    end
  end

  @app.call(env)
end

# File lib/rack/method_override.rb, line 41
def method_override(env)
  req = Request.new(env)
  method = method_override_param(req) ||
    env[HTTP_METHOD_OVERRIDE_HEADER]
  begin
    method.to_s.upcase
  rescue ArgumentError
    env[RACK_ERRORS].puts "Invalid string for method"
  end
end