require "abstract_unit" class MultipartParamsParsingTest < ActionDispatch::IntegrationTest class TestController < ActionController::Base class << self attr_accessor :last_request_parameters, :last_parameters end def parse self.class.last_request_parameters = begin request.request_parameters rescue EOFError {} end self.class.last_parameters = request.parameters head :ok end def read render plain: "File: #{params[:uploaded_data].read}" end end FIXTURE_PATH = File.expand_path("../../fixtures/multipart", __dir__) def teardown TestController.last_request_parameters = nil end test "parses single parameter" do assert_equal({ "foo" => "bar" }, parse_multipart("single_parameter")) end test "parses bracketed parameters" do assert_equal({ "foo" => { "baz" => "bar" } }, parse_multipart("bracketed_param")) end test "parse single utf8 parameter" do assert_equal({ "Iñtërnâtiônàlizætiøn_name" => "Iñtërnâtiônàlizætiøn_value" }, parse_multipart("single_utf8_param"), "request.request_parameters") assert_equal( "Iñtërnâtiônàlizætiøn_value", TestController.last_parameters["Iñtërnâtiônàlizætiøn_name"], "request.parameters") end test "parse bracketed utf8 parameter" do assert_equal({ "Iñtërnâtiônàlizætiøn_name" => { "Iñtërnâtiônàlizætiøn_nested_name" => "Iñtërnâtiônàlizætiøn_value" } }, parse_multipart("bracketed_utf8_param"), "request.request_parameters") assert_equal( { "Iñtërnâtiônàlizætiøn_nested_name" => "Iñtërnâtiônàlizætiøn_value" }, TestController.last_parameters["Iñtërnâtiônàlizætiøn_name"], "request.parameters") end test "parses text file" do params = parse_multipart("text_file") assert_equal %w(file foo), params.keys.sort assert_equal "bar", params["foo"] file = params["file"] assert_equal "file.txt", file.original_filename assert_equal "text/plain", file.content_type assert_equal "contents", file.read end test "parses utf8 filename with percent character" do params = parse_multipart("utf8_filename") assert_equal %w(file foo), params.keys.sort assert_equal "bar", params["foo"] file = params["file"] assert_equal "ファイル%名.txt", file.original_filename assert_equal "text/plain", file.content_type assert_equal "contents", file.read end test "parses boundary problem file" do params = parse_multipart("boundary_problem_file") assert_equal %w(file foo), params.keys.sort file = params["file"] foo = params["foo"] assert_equal "file.txt", file.original_filename assert_equal "text/plain", file.content_type assert_equal "bar", foo end test "parses large text file" do params = parse_multipart("large_text_file") assert_equal %w(file foo), params.keys.sort assert_equal "bar", params["foo"] file = params["file"] assert_equal "file.txt", file.original_filename assert_equal "text/plain", file.content_type assert_equal(("a" * 20480), file.read) end test "parses binary file" do params = parse_multipart("binary_file") assert_equal %w(file flowers foo), params.keys.sort assert_equal "bar", params["foo"] file = params["file"] assert_equal "file.csv", file.original_filename assert_nil file.content_type assert_equal "contents", file.read file = params["flowers"] assert_equal "flowers.jpg", file.original_filename assert_equal "image/jpeg", file.content_type assert_equal 19512, file.size end test "parses mixed files" do params = parse_multipart("mixed_files") assert_equal %w(files foo), params.keys.sort assert_equal "bar", params["foo"] # Rack doesn't handle multipart/mixed for us. files = params["files"] assert_equal 19756, files.bytesize end test "does not create tempfile if no file has been selected" do params = parse_multipart("none") assert_equal %w(submit-name), params.keys.sort assert_equal "Larry", params["submit-name"] assert_nil params["files"] end test "parses empty upload file" do params = parse_multipart("empty") assert_equal %w(files submit-name), params.keys.sort assert_equal "Larry", params["submit-name"] assert params["files"] assert_equal "", params["files"].read end test "uploads and reads binary file" do with_test_routing do fixture = FIXTURE_PATH + "/ruby_on_rails.jpg" params = { uploaded_data: fixture_file_upload(fixture, "image/jpg") } post "/read", params: params end end test "uploads and reads file" do with_test_routing do post "/read", params: { uploaded_data: fixture_file_upload(FIXTURE_PATH + "/hello.txt", "text/plain") } assert_equal "File: Hello", response.body end end # This can happen in Internet Explorer when redirecting after multipart form submit. test "does not raise EOFError on GET request with multipart content-type" do with_routing do |set| set.draw do ActiveSupport::Deprecation.silence do get ":action", controller: "multipart_params_parsing_test/test" end end headers = { "CONTENT_TYPE" => "multipart/form-data; boundary=AaB03x" } get "/parse", headers: headers assert_response :ok end end private def fixture(name) File.open(File.join(FIXTURE_PATH, name), "rb") do |file| { "rack.input" => file.read, "CONTENT_TYPE" => "multipart/form-data; boundary=AaB03x", "CONTENT_LENGTH" => file.stat.size.to_s } end end def parse_multipart(name) with_test_routing do headers = fixture(name) post "/parse", params: headers.delete("rack.input"), headers: headers assert_response :ok TestController.last_request_parameters end end def with_test_routing with_routing do |set| set.draw do ActiveSupport::Deprecation.silence do post ":action", controller: "multipart_params_parsing_test/test" end end yield end end end