adutra commented on code in PR #3682:
URL: https://github.com/apache/polaris/pull/3682#discussion_r2773463756
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runtime/service/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogHandler.java:
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@@ -634,11 +640,110 @@ public LoadTableResponse createTableStaged(
* @return ETagged {@link LoadTableResponse} to uniquely identify the table
metadata
*/
public LoadTableResponse registerTable(Namespace namespace,
RegisterTableRequest request) {
- PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.REGISTER_TABLE;
- authorizeCreateTableLikeUnderNamespaceOperationOrThrow(
- op, TableIdentifier.of(namespace, request.name()));
+ TableIdentifier identifier = TableIdentifier.of(namespace, request.name());
+ boolean overwrite = RegisterTableRequestContext.getOverwrite();
+
+ if (overwrite) {
+ // Resolve the namespace and table (optional) so we can distinguish
overwrite from create.
+ resolutionManifest = newResolutionManifest();
+ resolutionManifest.addPath(
+ new ResolverPath(Arrays.asList(namespace.levels()),
PolarisEntityType.NAMESPACE),
+ namespace);
+ ResolverPath tablePath =
+ new ResolverPath(
+ PolarisCatalogHelpers.tableIdentifierToList(identifier),
+ PolarisEntityType.TABLE_LIKE,
+ true /* optional */);
+ resolutionManifest.addPassthroughPath(tablePath, identifier);
+ resolutionManifest.resolveAll();
+
+ boolean tableExists =
+ resolutionManifest.getResolvedPath(
+ identifier,
+ PolarisEntityType.TABLE_LIKE,
+ PolarisEntitySubType.ICEBERG_TABLE,
+ true)
+ != null;
+ if (tableExists) {
+ authorizeUpdateTableOverwriteOrThrow(identifier);
+ LOGGER.debug(
+ "registerTable: overwrite=true, authorized for UPDATE_TABLE on
existing table");
+ } else {
+ // Table doesn't exist, fall back to REGISTER_TABLE authorization
+ LOGGER.debug(
+ "registerTable: overwrite=true, table not found, falling back to
REGISTER_TABLE");
+ PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.REGISTER_TABLE;
+ authorizeCreateTableLikeUnderNamespaceOperationOrThrow(op, identifier);
+ }
+ } else {
+ // Creating new table requires REGISTER_TABLE privilege
+ PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.REGISTER_TABLE;
+ authorizeCreateTableLikeUnderNamespaceOperationOrThrow(op, identifier);
+ }
+
+ try {
+ return catalogHandlerUtils.registerTable(baseCatalog, namespace,
request);
+ } finally {
+ // Clean up context
+ RegisterTableRequestContext.clear();
+ }
+ }
+
+ private void authorizeUpdateTableOverwriteOrThrow(TableIdentifier
identifier) {
+ authorizeBasicTableLikeOperationsOrThrow(
+ EnumSet.of(PolarisAuthorizableOperation.UPDATE_TABLE),
+ PolarisEntitySubType.ICEBERG_TABLE,
+ identifier);
- return catalogHandlerUtils.registerTable(baseCatalog, namespace, request);
+ if (!(authorizer instanceof PolarisAuthorizerImpl authorizerImpl)) {
Review Comment:
Why? Implementation details of the authorizer shouldn't matter here.
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