fix: better exception handling

interweb-server/src/main/java/de/l3s/interweb/server/config/ExceptionMappers.java

@@ -0,0 +1,14 @@
+package de.l3s.interweb.server.config;
+
+import jakarta.validation.ValidationException;
+import jakarta.ws.rs.core.Response;
+
+import org.jboss.resteasy.reactive.RestResponse;
+import org.jboss.resteasy.reactive.server.ServerExceptionMapper;
+
+public class ExceptionMappers {
+    @ServerExceptionMapper
+    public RestResponse<String> mapValidationException(ValidationException x) {
+        return RestResponse.status(Response.Status.BAD_REQUEST, x.getMessage());
+    }
+}

interweb-server/src/main/java/de/l3s/interweb/server/features/chat/Chat.java

@@ -99,6 +99,10 @@ public static Uni<List<Chat>> listByUser(Token token, String user, String order,
             query += " AND user = :user";
         }
 
+         if (page <= 0) {
+            page = 1; // foolproof
+        }
+
         return find(query, sort, params).page(page - 1, perPage).list();
     }
 

interweb-server/src/main/resources/application.properties

@@ -38,6 +38,7 @@ mp.jwt.verify.publickey.algorithm=HS256
 quarkus.log.sentry=false
 quarkus.log.sentry.dsn=
 quarkus.log.sentry.in-app-packages=de.l3s.interweb
+quarkus.log.sentry.ignored-exceptions-for-type=jakarta.validation.ValidationException
 
 # OpenAPI, Swagger
 quarkus.swagger-ui.always-include=true