Encode list blobs HTTP responses in UTF-8

Previously responses incorrectly encoded in ISO-8859-1.

src/main/java/org/gaul/s3proxy/S3ProxyHandler.java

@@ -998,6 +998,8 @@ final class S3ProxyHandler extends AbstractHandler {
         }
         options.maxResults(maxKeys);
 
+        response.setCharacterEncoding("UTF-8");
+
         PageSet<? extends StorageMetadata> set = blobStore.list(containerName,
                 options);
 

src/test/java/org/gaul/s3proxy/S3AwsSdkTest.java

@@ -54,10 +54,12 @@ import com.amazonaws.services.s3.model.GeneratePresignedUrlRequest;
 import com.amazonaws.services.s3.model.GetObjectRequest;
 import com.amazonaws.services.s3.model.InitiateMultipartUploadRequest;
 import com.amazonaws.services.s3.model.InitiateMultipartUploadResult;
+import com.amazonaws.services.s3.model.ObjectListing;
 import com.amazonaws.services.s3.model.ObjectMetadata;
 import com.amazonaws.services.s3.model.Owner;
 import com.amazonaws.services.s3.model.PartETag;
 import com.amazonaws.services.s3.model.S3Object;
+import com.amazonaws.services.s3.model.S3ObjectSummary;
 import com.amazonaws.services.s3.model.UploadPartRequest;
 import com.amazonaws.services.s3.model.UploadPartResult;
 import com.google.common.base.Throwables;
@@ -322,6 +324,28 @@ public final class S3AwsSdkTest {
         }
     }
 
+    @Test
+    public void testUnicodeObject() throws Exception {
+        AmazonS3 client = new AmazonS3Client(awsCreds,
+                new ClientConfiguration().withSignerOverride("S3SignerType"));
+        client.setEndpoint(s3Endpoint.toString());
+
+        String blobName = "ŪņЇЌœđЗ/☺ unicode € rocks ™";
+        ObjectMetadata metadata = new ObjectMetadata();
+        metadata.setContentLength(BYTE_SOURCE.size());
+        client.putObject(containerName, blobName, BYTE_SOURCE.openStream(),
+                metadata);
+
+        metadata = client.getObjectMetadata(containerName, blobName);
+        assertThat(metadata).isNotNull();
+
+        ObjectListing listing = client.listObjects(containerName);
+        List<S3ObjectSummary> summaries = listing.getObjectSummaries();
+        assertThat(summaries).hasSize(1);
+        S3ObjectSummary summary = summaries.iterator().next();
+        assertThat(summary.getKey()).isEqualTo(blobName);
+    }
+
     private static final class NullX509TrustManager
             implements X509TrustManager {
         @Override