test(webhook): add integration testing for the webhook feature - testing the custom Content-Disposition header from #1165

test/integration/features/webhook.feature

@@ -0,0 +1,33 @@
+# TODO:
+# 1. Other HTTP Methods
+# 2. Errors
+
+Feature: Webhook
+
+  Scenario: Default
+    Given I have a default Gotenberg container
+    Given I have a webhook server
+    When I make a "POST" request to Gotenberg at the "/forms/pdfengines/flatten" endpoint with the following form data and header(s):
+      | files                       | testdata/page_1.pdf                          | file   |
+      | Gotenberg-Webhook-Url       | http://host.docker.internal:%d/webhook       | header |
+      | Gotenberg-Webhook-Error-Url | http://host.docker.internal:%d/webhook/error | header |
+    Then the response status code should be 204
+    When I wait for the asynchronous request to the webhook
+    Then the webhook request header "Content-Type" should be "application/pdf"
+    Then there should be 1 PDF(s) in the webhook request
+
+  Scenario: Extra HTTP Headers
+    Given I have a default Gotenberg container
+    Given I have a webhook server
+    When I make a "POST" request to Gotenberg at the "/forms/pdfengines/flatten" endpoint with the following form data and header(s):
+      | files                                | testdata/page_1.pdf                            | file   |
+      | Gotenberg-Webhook-Url                | http://host.docker.internal:%d/webhook         | header |
+      | Gotenberg-Webhook-Error-Url          | http://host.docker.internal:%d/webhook/error   | header |
+      | Gotenberg-Webhook-Extra-Http-Headers | {"X-Foo":"bar","Content-Disposition":"inline"} | header |
+    Then the response status code should be 204
+    When I wait for the asynchronous request to the webhook
+    Then the webhook request header "Content-Type" should be "application/pdf"
+    Then the webhook request header "X-Foo" should be "bar"
+    # https://github.com/gotenberg/gotenberg/issues/1165
+    Then the webhook request header "Content-Disposition" should be "inline"
+    Then there should be 1 PDF(s) in the webhook request

test/integration/scenario/server.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 
 	"github.com/cucumber/godog"
+	"github.com/google/uuid"
 	"github.com/labstack/echo/v4"
 	"github.com/mholt/archives"
 )
@@ -62,7 +63,16 @@ func newServer(ctx context.Context, workdir string) (*server, error) {
 
 		filename, ok := params["filename"]
 		if !ok {
-			return webhookErr(errors.New("no filename in Content-Disposition header"))
+			filename = uuid.NewString()
+			contentType := s.req.Header.Get("Content-Type")
+			switch contentType {
+			case "application/zip":
+				filename = fmt.Sprintf("%s.zip", filename)
+			case "application/pdf":
+				filename = fmt.Sprintf("%s.pdf", filename)
+			default:
+				return webhookErr(errors.New("no filename in Content-Disposition header"))
+			}
 		}
 
 		dirPath := fmt.Sprintf("%s/%s", workdir, s.req.Header.Get("Gotenberg-Trace"))