class Rack::MethodOverride

Constants

ALLOWED_METHODS
HTTP_METHODS
HTTP_METHOD_OVERRIDE_HEADER
METHOD_OVERRIDE_PARAM_KEY

Public Class Methods

new(app) click to toggle source

# File lib/rack/method_override.rb, line 10
def initialize(app)
  @app = app
end

Public Instance Methods

call(env) click to toggle source

# File lib/rack/method_override.rb, line 14
def call(env)
  if allowed_methods.include?(env[REQUEST_METHOD])
    method = method_override(env)
    if HTTP_METHODS.include?(method)
      env[RACK_METHODOVERRIDE_ORIGINAL_METHOD] = env[REQUEST_METHOD]
      env[REQUEST_METHOD] = method
    end
  end

  @app.call(env)
end

method_override(env) click to toggle source

# File lib/rack/method_override.rb, line 26
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

Private Instance Methods

allowed_methods() click to toggle source

# File lib/rack/method_override.rb, line 39
def allowed_methods
  ALLOWED_METHODS
end

method_override_param(req) click to toggle source

# File lib/rack/method_override.rb, line 43
def method_override_param(req)
  req.POST[METHOD_OVERRIDE_PARAM_KEY]
rescue Utils::InvalidParameterError, Utils::ParameterTypeError
  req.get_header(RACK_ERRORS).puts "Invalid or incomplete POST params"
rescue EOFError
  req.get_header(RACK_ERRORS).puts "Bad request content body"
end