Added "See Other" response (HTTP 303).

Author: rmcdouga

spring/fluentforms-spring-boot-autoconfigure/src/main/java/com/_4point/aem/fluentforms/spring/AemProxyAfSubmission.java

@@ -278,7 +278,7 @@ public record Submission(String formData, String formName, String redirectUrl, M
 		/**
 		 * Interface that is a tagging interface for the different types of response.
 		 */
-		public sealed interface SubmitResponse permits SubmitResponse.Response, SubmitResponse.Redirect {
+		public sealed interface SubmitResponse permits SubmitResponse.Response, SubmitResponse.SeeOther, SubmitResponse.Redirect {
 			/**
 			 * A Normal response with a 200 HTTP status code (204 if the responseBytes variable is empty)
 			 */
@@ -320,6 +320,10 @@ public record Response(byte[] responseBytes, String mediaType) implements Submit
 				 */
 				public static Response xml(String xml) { return new Response(xml.getBytes(StandardCharsets.UTF_8), MediaType.APPLICATION_XML); }
 			};
+			/**
+			 * A Temporary Redirect (302 HTTP status code) response
+			 */
+			public record SeeOther(URI redirectUrl) implements SubmitResponse {};
 			/**
 			 * A Temporary Redirect (307 HTTP status code) response
 			 */
@@ -568,6 +572,8 @@ private Response formulateResponse(AfSubmissionHandler.SubmitResponse submitResp
 				var builder = response.responseBytes().length > 0 ? Response.ok().entity(response.responseBytes()).type(response.mediaType()) 
 																  :	Response.noContent();
 				return builder.build();
+			} else if (submitResponse instanceof AfSubmissionHandler.SubmitResponse.SeeOther redirectFound) {
+				return Response.seeOther(redirectFound.redirectUrl()).build();
 			} else if (submitResponse instanceof AfSubmissionHandler.SubmitResponse.Redirect redirect) {
 				return Response.temporaryRedirect(redirect.redirectUrl()).build();
 			} else {

spring/fluentforms-spring-boot-autoconfigure/src/test/java/com/_4point/aem/fluentforms/spring/AemProxyAfSubmissionTest.java

@@ -225,6 +225,19 @@ void testRedirect() {
 			assertThat(response, allOf(isStatus(Response.Status.TEMPORARY_REDIRECT), doesNotHaveEntity()));
 		}
 
+		@Test
+		void testSeeOther() {
+			final FormDataMultiPart getPdfForm = mockFormData("foo3", "bar");
+
+			Response response = jrc.target
+								   .path(SUBMIT_ADAPTIVE_FORM_SERVICE_PATH)
+								   .request()
+								   .accept(MediaType.TEXT_PLAIN_TYPE)
+								   .post(Entity.entity(getPdfForm, getPdfForm.getMediaType()));
+
+			assertThat(response, allOf(isStatus(Response.Status.SEE_OTHER), doesNotHaveEntity()));
+		}
+		
 		@Test
 		void testProxy() {
 			final FormDataMultiPart getPdfForm = mockFormData("foo2", "bar");
@@ -256,13 +269,18 @@ public SubmitResponse processSubmission(Submission submission) {
 				assertAll(
 						()->assertEquals(AF_TEMPLATE_NAME, submission.formName()),
 						()->assertEquals("bar", submission.formData()),
-						()->assertThat(submission.redirectUrl(), anyOf(equalTo("foo1"), equalTo("foo2"))),
+						()->assertThat(submission.redirectUrl(), anyOf(equalTo("foo1"), equalTo("foo2"), equalTo("foo3"))),
 						()->assertEquals(MediaType.TEXT_PLAIN, submission.headers().getFirst("accept")),
 						()->assertTrue(MediaType.MULTIPART_FORM_DATA_TYPE.isCompatible(MediaType.valueOf(submission.headers().getFirst("content-type"))))
 						);
 				try {
-					return "foo2".equals(submission.redirectUrl())	? new SubmitResponse.Redirect(new URI("http://localhost/"))
-																	: new SubmitResponse.Response(AF_SUBMIT_LOCAL_PROCESSOR_RESPONSE.getBytes(), "text/plain");
+					String redirectUrl = submission.redirectUrl();
+					return switch(redirectUrl) {
+						case "foo1" -> new SubmitResponse.Response(AF_SUBMIT_LOCAL_PROCESSOR_RESPONSE.getBytes(), "text/plain");
+						case "foo2" -> new SubmitResponse.Redirect(new URI("http://localhost/"));
+						case "foo3" -> new SubmitResponse.SeeOther(new URI("http://localhost/"));
+						default -> throw new UnsupportedOperationException("Unexpected value in redirectUrl (%s)".formatted(redirectUrl));
+					};
 				} catch (URISyntaxException e) {
 					throw new IllegalStateException("Bad URI -- ", e);
 				}