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Merged
merged 4 commits into from
Apr 4, 2025
Merged

Support ListObjectsV2 in S3HttpHandler #126189

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dbabef7
Support `ListObjectsV2` in `S3HttpHandler`
DaveCTurner Apr 3, 2025
e4d7dc6
Merge branch 'main' into 2025/04/03/S3HttpHandler-ListObjectsV2
DaveCTurner Apr 4, 2025
5974795
Drop list-type check entirely
DaveCTurner Apr 4, 2025
57931c0
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DaveCTurner Apr 4, 2025
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7 changes: 3 additions & 4 deletions test/fixtures/s3-fixture/src/main/java/fixture/s3/S3HttpHandler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -207,10 +207,6 @@ public void handle(final HttpExchange exchange) throws IOException {
exchange.sendResponseHeaders(RestStatus.OK.getStatus(), -1);

} else if (request.isListObjectsRequest()) {
if (request.queryParameters().containsKey("list-type")) {
throw new AssertionError("Test must be adapted for GET Bucket (List Objects) Version 2");
}

final StringBuilder list = new StringBuilder();
list.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
list.append("<ListBucketResult>");
Expand All @@ -223,6 +219,9 @@ public void handle(final HttpExchange exchange) throws IOException {
if (delimiter != null) {
list.append("<Delimiter>").append(delimiter).append("</Delimiter>");
}
// Would be good to test pagination here (the only real difference between ListObjects and ListObjectsV2) but for now
// we return all the results at once.
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@DiannaHohensee DiannaHohensee Apr 3, 2025

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Should this explanation be partly phrased as a TODO?

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@DaveCTurner DaveCTurner Apr 4, 2025

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I hold no hope that we'll actually do it so I'm going to just leave it as a comment.

list.append("<IsTruncated>false</IsTruncated>");
for (Map.Entry<String, BytesReference> blob : blobs.entrySet()) {
if (prefix != null && blob.getKey().startsWith("/" + bucket + "/" + prefix) == false) {
continue;
Expand Down
82 changes: 51 additions & 31 deletions test/fixtures/s3-fixture/src/test/java/fixture/s3/S3HttpHandlerTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpPrincipal;

import org.elasticsearch.common.Randomness;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.bytes.BytesReference;
Expand All @@ -28,6 +29,7 @@
import java.net.InetSocketAddress;
import java.net.URI;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

Expand All @@ -45,63 +47,81 @@ public void testRejectsBadUri() {
);
}

private static void assertListObjectsResponse(
S3HttpHandler handler,
@Nullable String prefix,
@Nullable String delimiter,
String expectedResponse
) {
final var queryParts = new ArrayList<String>(3);
if (prefix != null) {
queryParts.add("prefix=" + prefix);
}
if (delimiter != null) {
queryParts.add("delimiter=" + delimiter);
}
if (randomBoolean()) {
// test both ListObjects and ListObjectsV2 - they only differ in terms of pagination but S3HttpHandler doesn't do that
queryParts.add("list-type=2");
}
Randomness.shuffle(queryParts);

final var requestUri = "/bucket" + randomFrom("", "/") + (queryParts.isEmpty() ? "" : "?" + String.join("&", queryParts));
assertEquals("GET " + requestUri, new TestHttpResponse(RestStatus.OK, expectedResponse), handleRequest(handler, "GET", requestUri));
}

public void testSimpleObjectOperations() {
final var handler = new S3HttpHandler("bucket", "path");

assertEquals(RestStatus.NOT_FOUND, handleRequest(handler, "GET", "/bucket/path/blob").status());

assertEquals(
new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix></ListBucketResult>"""),
handleRequest(handler, "GET", "/bucket/?prefix=")
);
assertListObjectsResponse(handler, "", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix><IsTruncated>false</IsTruncated>\
</ListBucketResult>""");

final var body = randomAlphaOfLength(50);
assertEquals(RestStatus.OK, handleRequest(handler, "PUT", "/bucket/path/blob", body).status());
assertEquals(new TestHttpResponse(RestStatus.OK, body), handleRequest(handler, "GET", "/bucket/path/blob"));

assertEquals(new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix>\
assertListObjectsResponse(handler, "", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix><IsTruncated>false</IsTruncated>\
<Contents><Key>path/blob</Key><Size>50</Size></Contents>\
</ListBucketResult>"""), handleRequest(handler, "GET", "/bucket/?prefix="));
</ListBucketResult>""");

assertEquals(new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix>path/</Prefix>\
assertListObjectsResponse(handler, "path/", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix>path/</Prefix><IsTruncated>false</IsTruncated>\
<Contents><Key>path/blob</Key><Size>50</Size></Contents>\
</ListBucketResult>"""), handleRequest(handler, "GET", "/bucket/?prefix=path/"));
</ListBucketResult>""");

assertEquals(
new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix>path/other</Prefix></ListBucketResult>"""),
handleRequest(handler, "GET", "/bucket/?prefix=path/other")
);
assertListObjectsResponse(handler, "path/other", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix>path/other</Prefix><IsTruncated>false</IsTruncated>\
</ListBucketResult>""");

assertEquals(RestStatus.OK, handleRequest(handler, "PUT", "/bucket/path/subpath1/blob", randomAlphaOfLength(50)).status());
assertEquals(RestStatus.OK, handleRequest(handler, "PUT", "/bucket/path/subpath2/blob", randomAlphaOfLength(50)).status());
assertEquals(new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix>path/</Prefix>\
<Delimiter>/</Delimiter><Contents><Key>path/blob</Key><Size>50</Size></Contents>\
assertListObjectsResponse(handler, "path/", "/", """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult>\
<Prefix>path/</Prefix><Delimiter>/</Delimiter><IsTruncated>false</IsTruncated>\
<Contents><Key>path/blob</Key><Size>50</Size></Contents>\
<CommonPrefixes><Prefix>path/subpath1/</Prefix></CommonPrefixes>\
<CommonPrefixes><Prefix>path/subpath2/</Prefix></CommonPrefixes>\
</ListBucketResult>"""), handleRequest(handler, "GET", "/bucket/?delimiter=/&prefix=path/"));
</ListBucketResult>""");

assertEquals(RestStatus.OK, handleRequest(handler, "DELETE", "/bucket/path/blob").status());
assertEquals(RestStatus.NO_CONTENT, handleRequest(handler, "DELETE", "/bucket/path/blob").status());

assertEquals(new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix>\
assertListObjectsResponse(handler, "", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix><IsTruncated>false</IsTruncated>\
<Contents><Key>path/subpath1/blob</Key><Size>50</Size></Contents>\
<Contents><Key>path/subpath2/blob</Key><Size>50</Size></Contents>\
</ListBucketResult>"""), handleRequest(handler, "GET", "/bucket/?prefix="));
</ListBucketResult>""");

assertEquals(RestStatus.OK, handleRequest(handler, "DELETE", "/bucket/path/subpath1/blob").status());
assertEquals(RestStatus.OK, handleRequest(handler, "DELETE", "/bucket/path/subpath2/blob").status());

assertEquals(
new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix></ListBucketResult>"""),
handleRequest(handler, "GET", "/bucket/?prefix=")
);
assertListObjectsResponse(handler, "", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix><IsTruncated>false</IsTruncated>\
</ListBucketResult>""");
}

public void testGetWithBytesRange() {
Expand Down Expand Up @@ -216,10 +236,10 @@ public void testSingleMultipartUpload() {
</CompleteMultipartUpload>""", part1Etag, part2Etag))
);

assertEquals(new TestHttpResponse(RestStatus.OK, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix>\
assertListObjectsResponse(handler, "", null, """
<?xml version="1.0" encoding="UTF-8"?><ListBucketResult><Prefix></Prefix><IsTruncated>false</IsTruncated>\
<Contents><Key>path/blob</Key><Size>100</Size></Contents>\
</ListBucketResult>"""), handleRequest(handler, "GET", "/bucket/?prefix="));
</ListBucketResult>""");

assertEquals(new TestHttpResponse(RestStatus.OK, part1 + part2), handleRequest(handler, "GET", "/bucket/path/blob"));

Expand Down