Fix JSON parsing errors caused by spaces and special characters in Lu…

src/OrchardCore.Modules/OrchardCore.Search.Lucene/Controllers/AdminController.cs

@@ -413,7 +413,7 @@ await _luceneIndexManager.SearchAsync(model.IndexName, async searcher =>
 
             try
             {
-                var parameterizedQuery = JsonNode.Parse(tokenizedContent).AsObject();
+                var parameterizedQuery = JsonNode.Parse(tokenizedContent, JOptions.Node, JOptions.Document).AsObject();
                 var luceneTopDocs = await _queryService.SearchAsync(context, parameterizedQuery);
 
                 if (luceneTopDocs != null)

src/OrchardCore.Modules/OrchardCore.Search.Lucene/Services/LuceneQuerySource.cs

@@ -1,4 +1,5 @@
 using System.Text.Encodings.Web;
+using System.Text.Json;
 using System.Text.Json.Nodes;
 using Fluid;
 using Fluid.Values;
@@ -60,7 +61,7 @@ await _luceneIndexManager.SearchAsync(metadata.Index, async searcher =>
         {
             var tokenizedContent = await _liquidTemplateManager.RenderStringAsync(metadata.Template, _javaScriptEncoder, parameters.Select(x => new KeyValuePair<string, FluidValue>(x.Key, FluidValue.Create(x.Value, _templateOptions))));
 
-            var parameterizedQuery = JsonNode.Parse(tokenizedContent).AsObject();
+            var parameterizedQuery = JsonNode.Parse(tokenizedContent, JOptions.Node, JOptions.Document).AsObject();
 
             var analyzer = _luceneAnalyzerManager.CreateAnalyzer(await _luceneIndexSettingsService.GetIndexAnalyzerAsync(metadata.Index));
             var context = new LuceneQueryContext(searcher, LuceneSettings.DefaultVersion, analyzer);

test/OrchardCore.Tests/Apis/Lucene/LuceneQueryTests.cs

@@ -152,4 +152,26 @@ public async Task TwoWildcardQueriesWithBoostHasResults()
             Assert.Contains("Orchard", contentItems.ElementAt(3).DisplayText, StringComparison.OrdinalIgnoreCase);
         };
     }
+
+    [Fact]
+    public async Task LuceneQueryTemplateWithSpecialCharactersShouldNotThrowError()
+    {
+        using var context = new LuceneContext();
+        await context.InitializeAsync();
+
+        // Act
+        var index = "ArticleIndex";
+        var queryTemplate = "\r\r\n{% assign testVariable = \"48yvsghn194eft8axztaves25h\" %}\n\n{\n  \"query\": {\n    \"bool\": {\n      \"must\": [\n        { \"term\" : { \"Content.ContentItem.ContentType\" : \"Article\" } },\n        { \"term\": { \"Content.ContentItem.Published\" : \"true\" } },\n      ]\n    }\n  }\n}";
+
+        var content = await context.Client.GetAsync($"api/lucene/content?indexName={index}&query={queryTemplate}");
+        var queryResults = await content.Content.ReadAsAsync<LuceneQueryResults>();
+
+        // Assert
+        Assert.NotNull(queryResults);
+        Assert.NotEmpty(queryResults.Items);
+
+        var contentItems = queryResults.Items.Select(x => JObject.FromObject(x).Deserialize<ContentItem>());
+
+        Assert.Contains("Orchard", contentItems.First().DisplayText, StringComparison.OrdinalIgnoreCase);
+    }
 }