# frozen_string_literal: true require "test_helper" ENV["MAILGUN_INGRESS_SIGNING_KEY"] = "tbsy84uSV1Kt3ZJZELY2TmShPRs91E3yL4tzf96297vBCkDWgL" class ActionMailbox::Ingresses::Mailgun::InboundEmailsControllerTest < ActionDispatch::IntegrationTest setup { ActionMailbox.ingress = :mailgun } test "receiving an inbound email from Mailgun" do assert_difference -> { ActionMailbox::InboundEmail.count }, +1 do travel_to "2018-10-09 15:15:00 EDT" post rails_mailgun_inbound_emails_url, params: { timestamp: 1539112500, token: "7VwW7k6Ak7zcTwoSoNm7aTtbk1g67MKAnsYLfUB7PdszbgR5Xi", signature: "ef24c5225322217bb065b80bb54eb4f9206d764e3e16abab07f0a64d1cf477cc", "body-mime" => file_fixture("../files/welcome.eml").read } end assert_response :no_content inbound_email = ActionMailbox::InboundEmail.last assert_equal file_fixture("../files/welcome.eml").read, inbound_email.raw_email.download assert_equal "0CB459E0-0336-41DA-BC88-E6E28C697DDB@37signals.com", inbound_email.message_id end test "add X-Original-To to email from Mailgun" do assert_difference -> { ActionMailbox::InboundEmail.count }, +1 do travel_to "2018-10-09 15:15:00 EDT" post rails_mailgun_inbound_emails_url, params: { timestamp: 1539112500, token: "7VwW7k6Ak7zcTwoSoNm7aTtbk1g67MKAnsYLfUB7PdszbgR5Xi", signature: "ef24c5225322217bb065b80bb54eb4f9206d764e3e16abab07f0a64d1cf477cc", "body-mime" => file_fixture("../files/welcome.eml").read, recipient: "replies@example.com" } end assert_response :no_content inbound_email = ActionMailbox::InboundEmail.last mail = Mail.from_source(inbound_email.raw_email.download) assert_equal "replies@example.com", mail.header["X-Original-To"].decoded end test "rejecting a delayed inbound email from Mailgun" do assert_no_difference -> { ActionMailbox::InboundEmail.count } do travel_to "2018-10-09 15:26:00 EDT" post rails_mailgun_inbound_emails_url, params: { timestamp: 1539112500, token: "7VwW7k6Ak7zcTwoSoNm7aTtbk1g67MKAnsYLfUB7PdszbgR5Xi", signature: "ef24c5225322217bb065b80bb54eb4f9206d764e3e16abab07f0a64d1cf477cc", "body-mime" => file_fixture("../files/welcome.eml").read } end assert_response :unauthorized end test "rejecting a forged inbound email from Mailgun" do assert_no_difference -> { ActionMailbox::InboundEmail.count } do travel_to "2018-10-09 15:15:00 EDT" post rails_mailgun_inbound_emails_url, params: { timestamp: 1539112500, token: "Zx8mJBiGmiiyyfWnho3zKyjCg2pxLARoCuBM7X9AKCioShGiMX", signature: "ef24c5225322217bb065b80bb54eb4f9206d764e3e16abab07f0a64d1cf477cc", "body-mime" => file_fixture("../files/welcome.eml").read } end assert_response :unauthorized end test "raising when the configured Mailgun Signing key is nil" do switch_key_to nil do assert_raises ArgumentError do travel_to "2018-10-09 15:15:00 EDT" post rails_mailgun_inbound_emails_url, params: { timestamp: 1539112500, token: "7VwW7k6Ak7zcTwoSoNm7aTtbk1g67MKAnsYLfUB7PdszbgR5Xi", signature: "ef24c5225322217bb065b80bb54eb4f9206d764e3e16abab07f0a64d1cf477cc", "body-mime" => file_fixture("../files/welcome.eml").read } end end end test "raising when the configured Mailgun Signing key is blank" do switch_key_to "" do assert_raises ArgumentError do travel_to "2018-10-09 15:15:00 EDT" post rails_mailgun_inbound_emails_url, params: { timestamp: 1539112500, token: "7VwW7k6Ak7zcTwoSoNm7aTtbk1g67MKAnsYLfUB7PdszbgR5Xi", signature: "ef24c5225322217bb065b80bb54eb4f9206d764e3e16abab07f0a64d1cf477cc", "body-mime" => file_fixture("../files/welcome.eml").read } end end end private def switch_key_to(new_key) previous_key, ENV["MAILGUN_INGRESS_SIGNING_KEY"] = ENV["MAILGUN_INGRESS_SIGNING_KEY"], new_key yield ensure ENV["MAILGUN_INGRESS_SIGNING_KEY"] = previous_key end end