fix bugs and add html page

src/main/java/ua/com/dxrkness/controller/S3FileHandler.java

@@ -34,10 +34,9 @@ public class S3FileHandler {
                 }).get();
     }
 
-    public ServerResponse downloadFile(ServerRequest request) throws ServletException, IOException {
-        return Optional.of(request.body(DirectoryPath.class))
-                .map(DirectoryPath::path)
-                .map(URI::toString)
+    public ServerResponse downloadFile(ServerRequest request) {
+        return Optional.of(request.pathVariable("path").substring(1))
+                .map(URI::create)
                 .map(service::downloadFile)
                 .map(reader -> {
                     try (reader) {
@@ -75,9 +74,9 @@ public class S3FileHandler {
                 .get();
     }
 
-    public ServerResponse listing(ServerRequest request) throws ServletException, IOException {
-        return Optional.of(request.body(DirectoryPath.class))
-                .map(key -> service.listing(key.path()))
+    public ServerResponse listing(ServerRequest request) {
+        return Optional.of(request.pathVariable("path").substring(1))
+                .map(key -> service.listing(URI.create(key)))
                 .map(objects -> ServerResponse.ok().body(objects))
                 .get();
     }

src/main/java/ua/com/dxrkness/controller/S3FileHandlerConfig.java

@@ -2,21 +2,23 @@ package ua.com.dxrkness.controller;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 import org.springframework.web.servlet.function.RouterFunction;
 import org.springframework.web.servlet.function.RouterFunctions;
 import org.springframework.web.servlet.function.ServerResponse;
 
 @Configuration
-public class S3FileHandlerConfig {
+public class S3FileHandlerConfig implements WebMvcConfigurer {
     @Bean
     public RouterFunction<ServerResponse> router(S3FileHandler handler) {
         return RouterFunctions.route()
                 .path("/files", b -> b
-                        .GET(handler::downloadFile)
+                        .GET("/{*path}", handler::downloadFile)
                         .POST(handler::uploadFile)
                 )
                 .path("/dirs", b -> b
-                        .GET(handler::listing)
+                        .GET("/{*path}", handler::listing)
                         .POST(handler::createDirectory)
                 )
                 .path("/common", b -> b
@@ -25,4 +27,12 @@ public class S3FileHandlerConfig {
                 )
                 .build();
     }
+
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedMethods("*")
+                .allowedHeaders("*")
+                .allowedOriginPatterns("*");
+    }
 }

src/main/java/ua/com/dxrkness/service/S3Service.java

@@ -14,7 +14,6 @@ import java.io.BufferedInputStream;
 import java.io.IOException;
 import java.net.URI;
 import java.nio.channels.Channels;
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Optional;
 import java.util.function.Consumer;
@@ -108,12 +107,12 @@ public class S3Service {
                 RequestBody.fromInputStream(file.getInputStream(), file.getSize()));
     }
 
-    public BufferedInputStream downloadFile(String key) {
+    public BufferedInputStream downloadFile(URI key) {
         return new BufferedInputStream(
                 Channels.newInputStream(
                         Channels.newChannel(client.getObject(b -> b
                                 .bucket(bucketName)
-                                .key(key)))));
+                                .key(key.toString())))));
     }
 
     public List<String> listBuckets() {