fix: only enable aws-chunked content encoding for S3

.changes/d3a9b18c-7f36-4718-a855-91e3ac6f6531.json

@@ -0,0 +1,8 @@
+{
+    "id": "d3a9b18c-7f36-4718-a855-91e3ac6f6531",
+    "type": "bugfix",
+    "description": "Only enable aws-chunked content encoding for S3",
+    "issues": [
+        "https://github.com/awslabs/aws-sdk-kotlin/issues/1217"
+    ]
+}

codegen/aws-sdk-codegen/src/main/kotlin/aws/sdk/kotlin/codegen/customization/s3/ClientConfigIntegration.kt

@@ -61,6 +61,12 @@ class ClientConfigIntegration : KotlinIntegration {
                 Flag to disable [S3 multi-region access points](https://docs.aws.amazon.com/AmazonS3/latest/userguide/MultiRegionAccessPoints.html).
             """.trimIndent()
         }
+
+        val EnableAwsChunked: ConfigProperty = ConfigProperty {
+            name = "enableAwsChunked"
+            useSymbolWithNullableBuilder(KotlinTypes.Boolean, "true")
+            documentation = "Flag to enable [aws-chunked](https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html) content encoding."
+        }
     }
 
     override fun preprocessModel(model: Model, settings: KotlinSettings): Model {
@@ -86,6 +92,7 @@ class ClientConfigIntegration : KotlinIntegration {
             ForcePathStyleProp,
             UseArnRegionProp,
             DisableMrapProp,
+            EnableAwsChunked,
         )
 
     override val sectionWriters: List<SectionWriterBinding>

codegen/aws-sdk-codegen/src/main/kotlin/aws/sdk/kotlin/codegen/customization/s3/S3SigningConfig.kt

@@ -20,7 +20,6 @@ import software.amazon.smithy.model.shapes.ServiceShape
  * Set default signing attributes in the execution context (which ultimately becomes the signing context) for S3.
  */
 class S3SigningConfig : KotlinIntegration {
-    // auth schemes are de-duped by taking the last one registered
     override val order: Byte
         get() = 127
 
@@ -40,5 +39,6 @@ class S3SigningConfig : KotlinIntegration {
         writer.putIfAbsent(signingAttrs, "NormalizeUriPath", "false")
         writer.putIfAbsent(signingAttrs, "UseDoubleUriEncode", "false")
         writer.putIfAbsent(signingAttrs, "SignedBodyHeader", writer.format("#T.X_AMZ_CONTENT_SHA256", RuntimeTypes.Auth.Signing.AwsSigningCommon.AwsSignedBodyHeader))
+        writer.putIfAbsent(signingAttrs, "EnableAwsChunked", "config.enableAwsChunked")
     }
 }

codegen/aws-sdk-codegen/src/main/kotlin/aws/sdk/kotlin/codegen/customization/s3control/ClientConfigIntegration.kt

@@ -8,6 +8,7 @@ import aws.sdk.kotlin.codegen.customization.s3.isS3Control
 import software.amazon.smithy.kotlin.codegen.KotlinSettings
 import software.amazon.smithy.kotlin.codegen.core.CodegenContext
 import software.amazon.smithy.kotlin.codegen.integration.KotlinIntegration
+import software.amazon.smithy.kotlin.codegen.lang.KotlinTypes
 import software.amazon.smithy.kotlin.codegen.model.expectShape
 import software.amazon.smithy.kotlin.codegen.rendering.util.ConfigProperty
 import software.amazon.smithy.model.Model
@@ -32,6 +33,12 @@ class ClientConfigIntegration : KotlinIntegration {
             [S3 access points](https://docs.aws.amazon.com/AmazonS3/latest/userguide/access-points.html).
             """.trimIndent(),
         )
+
+        val EnableAwsChunked: ConfigProperty = ConfigProperty {
+            name = "enableAwsChunked"
+            useSymbolWithNullableBuilder(KotlinTypes.Boolean, "true")
+            documentation = "Flag to enable [aws-chunked](https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html) content encoding."
+        }
     }
 
     override fun preprocessModel(model: Model, settings: KotlinSettings): Model {
@@ -51,5 +58,6 @@ class ClientConfigIntegration : KotlinIntegration {
     override fun additionalServiceConfigProps(ctx: CodegenContext): List<ConfigProperty> =
         listOf(
             UseArnRegionProp,
+            EnableAwsChunked,
         )
 }