(search) Clean up the rate limiting

We fail quietly to make life harder for the bot farmers

code/services-application/search-service/java/nu/marginalia/search/svc/SearchSiteInfoService.java

@@ -147,10 +147,6 @@ public class SearchSiteInfoService {
             return new MapModelAndView("redirect.jte", Map.of("url", "/site"));
         }
 
-        if (!rateLimiter.isAllowed()) {
-            return new MapModelAndView("unavailable.jte", Map.of("message", "Due to aggressive bot scraping, this feature is temporarily unavailable. Please try again later."));
-        }
-
         page = Objects.requireNonNullElse(page, 1);
         view = Objects.requireNonNullElse(view, "info");
 
@@ -245,6 +241,7 @@ public class SearchSiteInfoService {
         boolean hasScreenshot = screenshotService.hasScreenshot(domainId);
         boolean isSubscribed = searchSiteSubscriptions.isSubscribed(context, domain);
 
+        boolean rateLimited = !rateLimiter.isAllowed();
         if (domainId < 0) {
             domainInfoFuture = CompletableFuture.failedFuture(new Exception("Unknown Domain ID"));
             similarSetFuture = CompletableFuture.failedFuture(new Exception("Unknown Domain ID"));
@@ -257,6 +254,12 @@ public class SearchSiteInfoService {
             linkingDomainsFuture = CompletableFuture.failedFuture(new Exception("Assistant Service Unavailable"));
             feedItemsFuture = CompletableFuture.failedFuture(new Exception("Assistant Service Unavailable"));
         }
+        else if (rateLimited) {
+            domainInfoFuture = domainInfoClient.domainInformation(domainId);
+            similarSetFuture = CompletableFuture.failedFuture(new Exception("Rate limit exceeded"));
+            linkingDomainsFuture = CompletableFuture.failedFuture(new Exception("Rate limit exceeded"));
+            feedItemsFuture = CompletableFuture.failedFuture(new Exception("Rate limit exceeded"));
+        }
         else {
             domainInfoFuture = domainInfoClient.domainInformation(domainId);
             similarSetFuture = domainInfoClient.similarDomains(domainId, 25);
@@ -264,7 +267,14 @@ public class SearchSiteInfoService {
             feedItemsFuture = feedsClient.getFeed(domainId);
         }
 
-        List<UrlDetails> sampleResults = searchOperator.doSiteSearch(domainName, domainId,5, 1).results;
+        List<UrlDetails> sampleResults;
+        if (rateLimited) {
+            sampleResults = List.of();
+        }
+        else {
+            sampleResults = searchOperator.doSiteSearch(domainName, domainId, 5, 1).results;
+        }
+
         if (!sampleResults.isEmpty()) {
             url = sampleResults.getFirst().url.withPathAndParam("/", null).toString();
         }
@@ -283,8 +293,9 @@ public class SearchSiteInfoService {
                 sampleResults
         );
 
-        requestMissingScreenshots(result);
-
+        if (!rateLimited) {
+            requestMissingScreenshots(result);
+        }
         return result;
     }