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Assert that REST params are consumed iff supported #113933

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Merged
merged 3 commits into from
Oct 3, 2024
Merged

Assert that REST params are consumed iff supported #113933

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e33234e
Assert that REST params are consumed iff supported
DaveCTurner Oct 2, 2024
e8d2d1d
Merge branch 'main' into 2024/10/02/ensure-consumed-params-supported
DaveCTurner Oct 2, 2024
fac2a92
use ALWAYS_SUPPORTED
DaveCTurner Oct 2, 2024
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3 changes: 2 additions & 1 deletion ...ta-streams/src/main/java/org/elasticsearch/datastreams/rest/RestGetDataStreamsAction.java
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
import org.elasticsearch.action.datastreams.GetDataStreamAction;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.internal.node.NodeClient;
import org.elasticsearch.cluster.metadata.DataStream;
import org.elasticsearch.cluster.metadata.DataStreamLifecycle;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.util.set.Sets;
Expand All @@ -35,12 +36,12 @@ public class RestGetDataStreamsAction extends BaseRestHandler {
Set.of(
"name",
"include_defaults",
"timeout",
"master_timeout",
IndicesOptions.WildcardOptions.EXPAND_WILDCARDS,
IndicesOptions.ConcreteTargetOptions.IGNORE_UNAVAILABLE,
IndicesOptions.WildcardOptions.ALLOW_NO_INDICES,
IndicesOptions.GatekeeperOptions.IGNORE_THROTTLED,
DataStream.isFailureStoreFeatureFlagEnabled() ? IndicesOptions.FailureStoreOptions.FAILURE_STORE : "name",
"verbose"
)
)
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17 changes: 17 additions & 0 deletions server/src/main/java/org/elasticsearch/rest/BaseRestHandler.java
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Expand Up @@ -16,6 +16,7 @@
import org.elasticsearch.common.settings.Setting.Property;
import org.elasticsearch.common.util.set.Sets;
import org.elasticsearch.core.CheckedConsumer;
import org.elasticsearch.core.Nullable;
import org.elasticsearch.core.RefCounted;
import org.elasticsearch.core.Releasable;
import org.elasticsearch.core.RestApiVersion;
Expand Down Expand Up @@ -104,6 +105,8 @@ public final void handleRequest(RestRequest request, RestChannel channel, NodeCl
// prepare the request for execution; has the side effect of touching the request parameters
try (var action = prepareRequest(request, client)) {

assert assertConsumesSupportedParams(supported, request);

// validate unconsumed params, but we must exclude params used to format the response
// use a sorted set so the unconsumed parameters appear in a reliable sorted order
final SortedSet<String> unconsumedParams = request.unconsumedParams()
Expand Down Expand Up @@ -148,6 +151,20 @@ public void close() {
}
}

private boolean assertConsumesSupportedParams(@Nullable Set<String> supported, RestRequest request) {
if (supported != null) {
final var supportedAndCommon = new TreeSet<>(supported);
supportedAndCommon.add("error_trace");
supportedAndCommon.addAll(ALWAYS_SUPPORTED);
supportedAndCommon.removeAll(RestRequest.INTERNAL_MARKER_REQUEST_PARAMETERS);
final var consumed = new TreeSet<>(request.consumedParams());
consumed.removeAll(RestRequest.INTERNAL_MARKER_REQUEST_PARAMETERS);
assert supportedAndCommon.equals(consumed)
: getName() + ": consumed params " + consumed + " while supporting " + supportedAndCommon;
}
return true;
}

protected static String unrecognized(RestRequest request, Set<String> invalids, Set<String> candidates, String detail) {
StringBuilder message = new StringBuilder().append("request [")
.append(request.path())
Expand Down