Destination Redshift: handle empty s3 bucket_path (airbytehq#18434)

* make bucket_path required

* check for nonempty path

* not required

* handle null/empty path

* version bump + changelog

* fix comment

* auto-bump connector version

* format

Co-authored-by: Octavia Squidington III <octavia-squidington-iii@users.noreply.github.com>

airbyte-config/init/src/main/resources/seed/destination_definitions.yaml

@@ -238,7 +238,7 @@
 - name: Redshift
   destinationDefinitionId: f7a7d195-377f-cf5b-70a5-be6b819019dc
   dockerRepository: airbyte/destination-redshift
-  dockerImageTag: 0.3.50
+  dockerImageTag: 0.3.51
   documentationUrl: https://docs.airbyte.com/integrations/destinations/redshift
   icon: redshift.svg
   resourceRequirements:

airbyte-config/init/src/main/resources/seed/destination_specs.yaml

@@ -4400,7 +4400,7 @@
     supported_destination_sync_modes:
     - "overwrite"
     - "append"
-- dockerImage: "airbyte/destination-redshift:0.3.50"
+- dockerImage: "airbyte/destination-redshift:0.3.51"
   spec:
     documentationUrl: "https://docs.airbyte.com/integrations/destinations/redshift"
     connectionSpecification:

airbyte-integrations/bases/base-java-s3/src/main/java/io/airbyte/integrations/destination/s3/S3BaseChecks.java

@@ -9,6 +9,7 @@
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.model.ListObjectsRequest;
 import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Strings;
 import io.airbyte.integrations.destination.s3.util.StreamTransferManagerFactory;
 import java.io.IOException;
 import java.io.PrintWriter;
@@ -92,19 +93,35 @@ static void attemptS3WriteAndDelete(final S3StorageOperations storageOperations,
                                       final S3DestinationConfig s3Config,
                                       final String bucketPath,
                                       final AmazonS3 s3) {
-    final var prefix = bucketPath.endsWith("/") ? bucketPath : bucketPath + "/";
+    final String prefix;
+    if (Strings.isNullOrEmpty(bucketPath)) {
+      prefix = "";
+    } else if (bucketPath.endsWith("/")) {
+      prefix = bucketPath;
+    } else {
+      prefix = bucketPath + "/";
+    }
+
     final String outputTableName = prefix + "_airbyte_connection_test_" + UUID.randomUUID().toString().replaceAll("-", "");
     attemptWriteAndDeleteS3Object(storageOperations, s3Config, outputTableName, s3);
   }
 
+  /**
+   * Runs some permissions checks: 1. Check whether the bucket exists; create it if not 2. Check
+   * whether s3://bucketName/bucketPath/ exists; create it (with empty contents) if not. (if
+   * bucketPath is null/empty-string, then skip this step) 3. Attempt to create and delete
+   * s3://bucketName/outputTableName 4. Attempt to list all objects in the bucket
+   */
   private static void attemptWriteAndDeleteS3Object(final S3StorageOperations storageOperations,
                                                     final S3DestinationConfig s3Config,
                                                     final String outputTableName,
                                                     final AmazonS3 s3) {
     final var s3Bucket = s3Config.getBucketName();
     final var bucketPath = s3Config.getBucketPath();
 
-    storageOperations.createBucketObjectIfNotExists(bucketPath);
+    if (!Strings.isNullOrEmpty(bucketPath)) {
+      storageOperations.createBucketObjectIfNotExists(bucketPath);
+    }
     s3.putObject(s3Bucket, outputTableName, "check-content");
     testIAMUserHasListObjectPermission(s3, s3Bucket);
     s3.deleteObject(s3Bucket, outputTableName);

airbyte-integrations/bases/base-java-s3/src/main/java/io/airbyte/integrations/destination/s3/S3StorageOperations.java

@@ -93,6 +93,11 @@ public String getBucketObjectPath(final String namespace, final String streamNam
             .replaceAll("/+", "/"));
   }
 
+  /**
+   * Create a directory object at the specified location. Creates the bucket if necessary.
+   *
+   * @param objectPath The directory to create. Must be a nonempty string.
+   */
   @Override
   public void createBucketObjectIfNotExists(final String objectPath) {
     final String bucket = s3Config.getBucketName();

airbyte-integrations/bases/base-java-s3/src/test/java/io/airbyte/integrations/destination/s3/S3BaseChecksTest.java

@@ -8,6 +8,7 @@
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.ArgumentMatchers.startsWith;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -25,6 +26,8 @@ public class S3BaseChecksTest {
   @BeforeEach
   public void setup() {
     s3Client = mock(AmazonS3.class);
+    when(s3Client.doesObjectExist(anyString(), eq(""))).thenThrow(new IllegalArgumentException("Object path must not be empty"));
+    when(s3Client.putObject(anyString(), eq(""), anyString())).thenThrow(new IllegalArgumentException("Object path must not be empty"));
   }
 
   @Test
@@ -49,4 +52,46 @@ public void attemptWriteAndDeleteS3Object_should_createSpecificFiles() {
     verify(s3Client).deleteObject(eq("test_bucket"), startsWith("test/bucket/path/_airbyte_connection_test_"));
   }
 
+  @Test
+  public void attemptWriteAndDeleteS3Object_should_skipDirectoryCreateIfRootPath() {
+    S3DestinationConfig config = new S3DestinationConfig(
+        null,
+        "test_bucket",
+        "",
+        null,
+        null,
+        null,
+        null,
+        s3Client);
+    S3StorageOperations operations = new S3StorageOperations(new S3NameTransformer(), s3Client, config);
+
+    S3BaseChecks.attemptS3WriteAndDelete(operations, config, "");
+
+    verify(s3Client, never()).putObject("test_bucket", "", "");
+    verify(s3Client).putObject(eq("test_bucket"), startsWith("_airbyte_connection_test_"), anyString());
+    verify(s3Client).listObjects(ArgumentMatchers.<ListObjectsRequest>argThat(request -> "test_bucket".equals(request.getBucketName())));
+    verify(s3Client).deleteObject(eq("test_bucket"), startsWith("_airbyte_connection_test_"));
+  }
+
+  @Test
+  public void attemptWriteAndDeleteS3Object_should_skipDirectoryCreateIfNullPath() {
+    S3DestinationConfig config = new S3DestinationConfig(
+        null,
+        "test_bucket",
+        null,
+        null,
+        null,
+        null,
+        null,
+        s3Client);
+    S3StorageOperations operations = new S3StorageOperations(new S3NameTransformer(), s3Client, config);
+
+    S3BaseChecks.attemptS3WriteAndDelete(operations, config, null);
+
+    verify(s3Client, never()).putObject("test_bucket", "", "");
+    verify(s3Client).putObject(eq("test_bucket"), startsWith("_airbyte_connection_test_"), anyString());
+    verify(s3Client).listObjects(ArgumentMatchers.<ListObjectsRequest>argThat(request -> "test_bucket".equals(request.getBucketName())));
+    verify(s3Client).deleteObject(eq("test_bucket"), startsWith("_airbyte_connection_test_"));
+  }
+
 }

airbyte-integrations/connectors/destination-redshift/Dockerfile

@@ -16,5 +16,5 @@ ENV APPLICATION destination-redshift
 
 COPY --from=build /airbyte /airbyte
 
-LABEL io.airbyte.version=0.3.50
+LABEL io.airbyte.version=0.3.51
 LABEL io.airbyte.name=airbyte/destination-redshift

docs/integrations/destinations/redshift.md

@@ -141,6 +141,7 @@ Each stream will be output into its own raw table in Redshift. Each table will c
 
 | Version | Date       | Pull Request                                               | Subject                                                                                                                                                                                                          |
 |:--------|:-----------|:-----------------------------------------------------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| 0.3.51  | 2022-10-26 | [\#18434](https://github.com/airbytehq/airbyte/pull/18434) | Fix empty S3 bucket path handling |
 | 0.3.50  | 2022-09-14 | [\#15668](https://github.com/airbytehq/airbyte/pull/15668) | Wrap logs in AirbyteLogMessage |
 | 0.3.49  | 2022-09-01 | [\#16243](https://github.com/airbytehq/airbyte/pull/16243) | Fix Json to Avro conversion when there is field name clash from combined restrictions (`anyOf`, `oneOf`, `allOf` fields) |
 | 0.3.48  | 2022-09-01 |  | Added JDBC URL params                                                                                                                                                                                            |
@@ -151,8 +152,8 @@ Each stream will be output into its own raw table in Redshift. Each table will c
 | 0.3.43  | 2022-06-24 | [\#13690](https://github.com/airbytehq/airbyte/pull/13690) | Improved discovery for NOT SUPER column                                                                                                                                                                          |
 | 0.3.42  | 2022-06-21 | [\#14013](https://github.com/airbytehq/airbyte/pull/14013) | Add an option to use encryption with staging in Redshift Destination                                                                                                                                             |
 | 0.3.40  | 2022-06-17 | [\#13753](https://github.com/airbytehq/airbyte/pull/13753) | Deprecate and remove PART_SIZE_MB fields from connectors based on StreamTransferManager                                                                                                                          |
-| 0.3.39  | 2022-06-02 | [13415](https://github.com/airbytehq/airbyte/pull/13415)   | Add dropdown to select Uploading Method. <br /> **PLEASE NOTICE**: After this update your **uploading method** will be set to **Standard**, you will need to reconfigure the method to use **S3 Staging** again. | 
-| 0.3.37  | 2022-05-23 | [13090](https://github.com/airbytehq/airbyte/pull/13090)   | Removed redshiftDataTmpTableMode. Some refactoring.                                                                                                                                                              | 
+| 0.3.39  | 2022-06-02 | [13415](https://github.com/airbytehq/airbyte/pull/13415)   | Add dropdown to select Uploading Method. <br /> **PLEASE NOTICE**: After this update your **uploading method** will be set to **Standard**, you will need to reconfigure the method to use **S3 Staging** again. |
+| 0.3.37  | 2022-05-23 | [13090](https://github.com/airbytehq/airbyte/pull/13090)   | Removed redshiftDataTmpTableMode. Some refactoring.                                                                                                                                                              |
 | 0.3.36  | 2022-05-23 | [12820](https://github.com/airbytehq/airbyte/pull/12820)   | Improved 'check' operation performance                                                                                                                                                                           |
 | 0.3.35  | 2022-05-18 | [12940](https://github.com/airbytehq/airbyte/pull/12940)   | Fixed maximum record size for SUPER type                                                                                                                                                                         |
 | 0.3.34  | 2022-05-16 | [12869](https://github.com/airbytehq/airbyte/pull/12869)   | Fixed NPE in S3 staging check                                                                                                                                                                                    |