Custom HTML support #355 (#1129)

* test

* settings

* version

src/main/java/stirling/software/SPDF/config/AppConfig.java

@@ -7,18 +7,34 @@ import java.util.Properties;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.Resource;
+import org.springframework.core.io.ResourceLoader;
+import org.thymeleaf.spring6.SpringTemplateEngine;
 
 import stirling.software.SPDF.model.ApplicationProperties;
 
 @Configuration
+@Lazy
 public class AppConfig {
 
     @Autowired ApplicationProperties applicationProperties;
 
+    @Bean
+    @ConditionalOnProperty(
+            name = "system.customHTMLFiles",
+            havingValue = "true",
+            matchIfMissing = false)
+    public SpringTemplateEngine templateEngine(ResourceLoader resourceLoader) {
+        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
+        templateEngine.addTemplateResolver(new FileFallbackTemplateResolver(resourceLoader));
+        return templateEngine;
+    }
+
     @Bean(name = "loginEnabled")
     public boolean loginEnabled() {
         return applicationProperties.getSecurity().getEnableLogin();