Cleanup after REST Client multipart request

Fixes: quarkusio#33986
sberyozkin · Jun 21, 2023 · c2521e9 · c2521e9
1 parent a5285bb
commit c2521e9
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Showing 2 changed files with 108 additions and 3 deletions.
diff --git a/...loyment/src/test/java/io/quarkus/rest/client/reactive/multipart/MultipartCleanupTest.java b/...loyment/src/test/java/io/quarkus/rest/client/reactive/multipart/MultipartCleanupTest.java
@@ -0,0 +1,97 @@
+package io.quarkus.rest.client.reactive.multipart;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.nio.file.Files;
+
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.FormParam;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.core.MediaType;
+
+import org.eclipse.microprofile.rest.client.RestClientBuilder;
+import org.jboss.resteasy.reactive.MultipartForm;
+import org.jboss.resteasy.reactive.PartType;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.test.QuarkusUnitTest;
+import io.quarkus.test.common.http.TestHTTPResource;
+
+public class MultipartCleanupTest {
+
+    private static java.nio.file.Path tempDir;
+
+    @TestHTTPResource
+    URI baseUri;
+
+    @RegisterExtension
+    static final QuarkusUnitTest TEST = new QuarkusUnitTest()
+            .withApplicationRoot(jar -> jar.addClasses(Form.class, Client.class, Resource.class));
+
+    @BeforeAll
+    static void getTempDir() throws IOException {
+        java.nio.file.Path tempFilePath = Files.createTempFile("jvm_tempfile_helper_", ".tmp"); // create temp file to get reference to jvm temp dir
+        tempFilePath.toFile().deleteOnExit(); // cleanup file after test is finished
+        tempDir = tempFilePath.getParent(); // now we can get the root temp dir
+    }
+
+    @Test
+    public void test() throws IOException {
+        Client client = RestClientBuilder.newBuilder().baseUri(baseUri).build(Client.class);
+
+        File file = File.createTempFile("MultipartTest", ".txt");
+        Files.writeString(file.toPath(), "DUMMY".repeat(1000));
+        file.deleteOnExit();
+
+        Form form = new Form();
+        form.file = file;
+        form.dummy = "dummy";
+
+        long attrFilesBeforeTest = getCountOfNettyAttrTempFiles();
+        assertThat(client.send(form)).isEqualTo("test");
+        assertThat(getCountOfNettyAttrTempFiles()).isEqualTo(attrFilesBeforeTest);
+    }
+
+    private long getCountOfNettyAttrTempFiles() {
+        File[] attrFiles = tempDir.toFile().listFiles((dir, name) -> name.startsWith("Attr_"));
+        if (attrFiles == null) {
+            throw new IllegalStateException("could not list Attr_ files because the directory to search was not valid");
+        }
+        return attrFiles.length;
+    }
+
+    public static class Form {
+        @FormParam("file")
+        @PartType(MediaType.APPLICATION_OCTET_STREAM)
+        private File file;
+
+        @FormParam("dummy")
+        @PartType(MediaType.TEXT_PLAIN)
+        private String dummy;
+    }
+
+    public interface Client {
+
+        @POST
+        @Consumes(MediaType.MULTIPART_FORM_DATA)
+        @Path("/multipart")
+        String send(Form collectorDto);
+    }
+
+    @Path("/multipart")
+    @ApplicationScoped
+    public static class Resource {
+        @POST
+        @Consumes(MediaType.MULTIPART_FORM_DATA)
+        public String upload(@MultipartForm Form form) {
+            return "test";
+        }
+    }
+}
diff --git a/...in/java/org/jboss/resteasy/reactive/client/impl/multipart/QuarkusMultipartFormUpload.java b/...in/java/org/jboss/resteasy/reactive/client/impl/multipart/QuarkusMultipartFormUpload.java
@@ -146,6 +146,14 @@ private void handleChunk(Object item) {
         handler.handle(item);
     }
 
+    private void clearEncoder() {
+        if (encoder == null) {
+            return;
+        }
+        encoder.cleanFiles();
+        encoder = null;
+    }
+
     @Override
     public void run() {
         if (Vertx.currentContext() != context) {
@@ -161,7 +169,7 @@ public void run() {
                     } else if (chunk == LastHttpContent.EMPTY_LAST_CONTENT || encoder.isEndOfInput()) {
                         ended = true;
                         request = null;
-                        encoder = null;
+                        clearEncoder();
                         pending.write(InboundBuffer.END_SENTINEL);
                     } else {
                         ByteBuf content = chunk.content();
@@ -179,7 +187,7 @@ public void run() {
                 ByteBuf content = request.content();
                 Buffer buffer = Buffer.buffer(content);
                 request = null;
-                encoder = null;
+                clearEncoder();
                 pending.write(buffer);
                 ended = true;
                 pending.write(InboundBuffer.END_SENTINEL);
@@ -194,7 +202,7 @@ public boolean isChunked() {
     private void handleError(Throwable e) {
         ended = true;
         request = null;
-        encoder = null;
+        clearEncoder();
         pending.write(e);
     }