Log diff instead of non-existant Date header

example/src/test/kotlin/dev/capybaralabs/shipa/discord/interaction/InteractionControllerTest.kt

@@ -75,13 +75,14 @@ internal class InteractionControllerTest : ApplicationTest() {
 
 	@Test
 	internal fun whenPing_thenPong() {
+		val timestamp = Instant.now().epochSecond.toString()
 		val headers = HttpHeaders().apply {
 			add(HEADER_SIGNATURE, "signature")
-			add(HEADER_TIMESTAMP, "timestamp")
+			add(HEADER_TIMESTAMP, timestamp)
 		}
 		val body = InteractionObject.Ping(42, metadata, 42, "foo", 1)
 
-		doReturn(true).`when`(interactionValidator).validateSignature(eq("signature"), eq("timestamp"), any())
+		doReturn(true).`when`(interactionValidator).validateSignature(eq("signature"), eq(timestamp), any())
 
 		val response = this.testRestTemplate.postForEntity("/api/interaction", HttpEntity(body, headers), InteractionResponse.Pong::class.java)
 

gradle.properties

@@ -2,7 +2,7 @@ org.gradle.warning.mode=all
 # Build broken due to warnings from KAPT: https://youtrack.jetbrains.com/issue/KT-68400/K2-w-Kapt-currently-doesnt-support-language-version-2.0.-Falling-back-to-1.9.
 #kapt.use.k2=true
 
-shipaVersion=0.7.16
+shipaVersion=0.7.17
 
 theJavaVersion=21
 

src/main/kotlin/dev/capybaralabs/shipa/discord/interaction/InteractionController.kt

@@ -29,7 +29,6 @@ import kotlinx.coroutines.async
 import kotlinx.coroutines.future.asCompletableFuture
 import kotlinx.coroutines.launch
 import org.slf4j.LoggerFactory
-import org.springframework.http.HttpHeaders
 import org.springframework.http.HttpStatus
 import org.springframework.http.ResponseEntity
 import org.springframework.web.bind.annotation.PostMapping
@@ -94,20 +93,13 @@ internal class InteractionController(
 			// discord does not state anything about having to check the timestamp recency.
 		}
 
-		val dateHeaderTimestamp: Instant? = try {
-			val dateMillis = req.getDateHeader(HttpHeaders.DATE)
-			if (dateMillis > 0) {
-				Instant.ofEpochMilli(dateMillis)
-			} else {
-				null
-			}
-		} catch (e: Exception) {
-			logger().info("Interaction {}: Request header Date is not a valid date: {}", untypedInteraction.id, req.getHeader(HttpHeaders.DATE), e)
-			null
-		}
+		val diff = discordTimestamp?.let { Duration.between(discordTimestamp, requestReceived) }
 		log.trace(
-			"Interaction {}: Discord timestamp header: {}, date header timestamp: {},  received time: {}",
-			untypedInteraction.id, discordTimestamp, dateHeaderTimestamp, requestReceived,
+			"Interaction {}: Discord timestamp header: {}, received time: {}, diff {}ms",
+			untypedInteraction.id,
+			discordTimestamp,
+			requestReceived,
+			diff?.toMillis(),
 		)
 
 		val metadata = ShipaMetadata(requestReceived)