init

src/main/kotlin/space/luminic/budgerapp/controllers/CustomAuthenticationEntryPoint.kt

@@ -0,0 +1,34 @@
+package space.luminic.budgerapp.controllers
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import org.springframework.http.HttpStatus
+import org.springframework.http.MediaType
+import org.springframework.security.core.AuthenticationException
+import org.springframework.security.web.server.ServerAuthenticationEntryPoint
+import org.springframework.stereotype.Component
+import org.springframework.web.server.ServerWebExchange
+import reactor.core.publisher.Mono
+import java.util.*
+
+@Component
+class CustomAuthenticationEntryPoint : ServerAuthenticationEntryPoint {
+    override fun commence(
+        exchange: ServerWebExchange,
+        ex: AuthenticationException
+    ): Mono<Void> {
+        val response = exchange.response
+        response.statusCode = HttpStatus.UNAUTHORIZED
+        response.headers.contentType = MediaType.APPLICATION_JSON
+
+        val body = mapOf(
+            "timestamp" to Date(),
+            "status" to HttpStatus.UNAUTHORIZED.value(),
+            "error" to "Unauthorized",
+            "message" to ex.message,
+            "path" to exchange.request.path.value()
+        )
+
+        val buffer = response.bufferFactory().wrap(ObjectMapper().writeValueAsBytes(body))
+        return response.writeWith(Mono.just(buffer))
+    }
+}