When serving a website, delete the unzipped directory if the index file is not found.

This is a quick solution to rebuild directory structures with missing files. This whole area of the code needs some reworking, as serving the site from a temporary folder is not a robust long term solution.

pom.xml

@@ -450,6 +450,11 @@
 			<artifactId>commons-text</artifactId>
 			<version>${commons-text.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>commons-io</groupId>
+			<artifactId>commons-io</artifactId>
+			<version>2.6</version>
+		</dependency>
 		<!--  For bitset/bitmap compression -->
 		<dependency>
 			<groupId>io.druid</groupId>

src/main/java/org/qortal/api/resource/WebsiteResource.java

@@ -20,6 +20,7 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.parameters.RequestBody;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import org.apache.commons.io.FileUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.qortal.api.ApiError;
@@ -355,8 +356,19 @@ public class WebsiteResource {
                 inputStream.close();
             }
             return response;
+        } catch (FileNotFoundException e) {
+            LOGGER.info("File not found at path: {}", unzippedPath);
+            if (inPath.equals("/")) {
+                // Delete the unzipped folder if no index file was found
+                try {
+                    FileUtils.deleteDirectory(new File(unzippedPath));
+                } catch (IOException ioException) {
+                    LOGGER.info("Unable to delete directory: {}", unzippedPath, e);
+                }
+            }
+
         } catch (IOException e) {
-            LOGGER.info("Unable to serve file at path: {}", inPath);
+            LOGGER.info("Unable to serve file at path: {}", inPath, e);
         }
 
         return this.get404Response();