fix(credential-provider-node): pass client region to inner credential client region

clients/client-sts/src/defaultRoleAssumers.ts

@@ -9,6 +9,7 @@ import {
   getDefaultRoleAssumerWithWebIdentity as StsGetDefaultRoleAssumerWithWebIdentity,
   RoleAssumer,
   RoleAssumerWithWebIdentity,
+  STSRoleAssumerOptions,
 } from "./defaultStsRoleAssumers";
 import { ServiceInputTypes, ServiceOutputTypes, STSClient, STSClientConfig } from "./STSClient";
 
@@ -32,15 +33,15 @@ const getCustomizableStsClientCtor = (
  * The default role assumer that used by credential providers when sts:AssumeRole API is needed.
  */
 export const getDefaultRoleAssumer = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler"> = {},
+  stsOptions: STSRoleAssumerOptions = {},
   stsPlugins?: Pluggable<ServiceInputTypes, ServiceOutputTypes>[]
 ): RoleAssumer => StsGetDefaultRoleAssumer(stsOptions, getCustomizableStsClientCtor(STSClient, stsPlugins));
 
 /**
  * The default role assumer that used by credential providers when sts:AssumeRoleWithWebIdentity API is needed.
  */
 export const getDefaultRoleAssumerWithWebIdentity = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler"> = {},
+  stsOptions: STSRoleAssumerOptions = {},
   stsPlugins?: Pluggable<ServiceInputTypes, ServiceOutputTypes>[]
 ): RoleAssumerWithWebIdentity =>
   StsGetDefaultRoleAssumerWithWebIdentity(stsOptions, getCustomizableStsClientCtor(STSClient, stsPlugins));

clients/client-sts/src/defaultStsRoleAssumers.ts

@@ -1,7 +1,9 @@
 // smithy-typescript generated code
 // Please do not touch this file. It's generated from template in:
 // https://github.com/aws/aws-sdk-js-v3/blob/main/codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/sts-client-defaultStsRoleAssumers.ts
-import { AwsCredentialIdentity, Provider } from "@smithy/types";
+import type { CredentialProviderOptions } from "@aws-sdk/types";
+import { partition } from "@aws-sdk/util-endpoints";
+import { AwsCredentialIdentity, Logger, Provider } from "@smithy/types";
 
 import { AssumeRoleCommand, AssumeRoleCommandInput } from "./commands/AssumeRoleCommand";
 import {
@@ -10,6 +12,14 @@ import {
 } from "./commands/AssumeRoleWithWebIdentityCommand";
 import type { STSClient, STSClientConfig, STSClientResolvedConfig } from "./STSClient";
 
+/**
+ * @public
+ */
+export type STSRoleAssumerOptions = Pick<STSClientConfig, "logger" | "region" | "requestHandler"> & {
+  credentialProviderLogger?: Logger;
+  parentClientConfig?: CredentialProviderOptions["parentClientConfig"];
+};
+
 /**
  * @internal
  */
@@ -21,40 +31,63 @@ export type RoleAssumer = (
 const ASSUME_ROLE_DEFAULT_REGION = "us-east-1";
 
 /**
- * Inject the fallback STS region of us-east-1.
+ * @internal
+ *
+ * Default to the us-east-1 region for aws partition,
+ * or default to the parent client region otherwise.
  */
-const decorateDefaultRegion = (region: string | Provider<string> | undefined): string | Provider<string> => {
-  if (typeof region !== "function") {
-    return region === undefined ? ASSUME_ROLE_DEFAULT_REGION : region;
+const resolveRegion = async (
+  _region: string | Provider<string> | undefined,
+  _parentRegion: string | Provider<string> | undefined,
+  credentialProviderLogger?: Logger
+): Promise<string> => {
+  const region: string | undefined = typeof _region === "function" ? await _region() : _region;
+  const parentRegion: string | undefined = typeof _parentRegion === "function" ? await _parentRegion() : _parentRegion;
+
+  if (!parentRegion || partition(parentRegion).name === "aws") {
+    credentialProviderLogger?.debug?.(
+      "@aws-sdk/client-sts::resolveRegion",
+      "accepting first of:",
+      `${region} (provider)`,
+      `${ASSUME_ROLE_DEFAULT_REGION} (STS default)`
+    );
+    return region ?? ASSUME_ROLE_DEFAULT_REGION;
+  } else {
+    credentialProviderLogger?.debug?.(
+      "@aws-sdk/client-sts::resolveRegion",
+      "accepting first of:",
+      `${region} (provider)`,
+      `${parentRegion} (parent client)`,
+      `${ASSUME_ROLE_DEFAULT_REGION} (STS default)`
+    );
+    return region ?? parentRegion ?? ASSUME_ROLE_DEFAULT_REGION;
   }
-  return async () => {
-    try {
-      return await region();
-    } catch (e) {
-      return ASSUME_ROLE_DEFAULT_REGION;
-    }
-  };
 };
 
 /**
  * The default role assumer that used by credential providers when sts:AssumeRole API is needed.
  * @internal
  */
 export const getDefaultRoleAssumer = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler">,
+  stsOptions: STSRoleAssumerOptions,
   stsClientCtor: new (options: STSClientConfig) => STSClient
 ): RoleAssumer => {
   let stsClient: STSClient;
   let closureSourceCreds: AwsCredentialIdentity;
   return async (sourceCreds, params) => {
     closureSourceCreds = sourceCreds;
     if (!stsClient) {
-      const { logger, region, requestHandler } = stsOptions;
+      const { logger, region, requestHandler, credentialProviderLogger } = stsOptions;
+      const resolvedRegion = await resolveRegion(
+        region,
+        stsOptions?.parentClientConfig?.region,
+        credentialProviderLogger
+      );
       stsClient = new stsClientCtor({
         logger,
         // A hack to make sts client uses the credential in current closure.
         credentialDefaultProvider: () => async () => closureSourceCreds,
-        region: decorateDefaultRegion(region || stsOptions.region),
+        region: resolvedRegion,
         ...(requestHandler ? { requestHandler } : {}),
       });
     }
@@ -85,16 +118,21 @@ export type RoleAssumerWithWebIdentity = (
  * @internal
  */
 export const getDefaultRoleAssumerWithWebIdentity = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler">,
+  stsOptions: STSRoleAssumerOptions,
   stsClientCtor: new (options: STSClientConfig) => STSClient
 ): RoleAssumerWithWebIdentity => {
   let stsClient: STSClient;
   return async (params) => {
     if (!stsClient) {
-      const { logger, region, requestHandler } = stsOptions;
+      const { logger, region, requestHandler, credentialProviderLogger } = stsOptions;
+      const resolvedRegion = await resolveRegion(
+        region,
+        stsOptions?.parentClientConfig?.region,
+        credentialProviderLogger
+      );
       stsClient = new stsClientCtor({
         logger,
-        region: decorateDefaultRegion(region || stsOptions.region),
+        region: resolvedRegion,
         ...(requestHandler ? { requestHandler } : {}),
       });
     }

codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/sts-client-defaultRoleAssumers.ts

@@ -6,6 +6,7 @@ import {
   getDefaultRoleAssumerWithWebIdentity as StsGetDefaultRoleAssumerWithWebIdentity,
   RoleAssumer,
   RoleAssumerWithWebIdentity,
+  STSRoleAssumerOptions,
 } from "./defaultStsRoleAssumers";
 import { ServiceInputTypes, ServiceOutputTypes, STSClient, STSClientConfig } from "./STSClient";
 
@@ -29,15 +30,15 @@ const getCustomizableStsClientCtor = (
  * The default role assumer that used by credential providers when sts:AssumeRole API is needed.
  */
 export const getDefaultRoleAssumer = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler"> = {},
+  stsOptions: STSRoleAssumerOptions = {},
   stsPlugins?: Pluggable<ServiceInputTypes, ServiceOutputTypes>[]
 ): RoleAssumer => StsGetDefaultRoleAssumer(stsOptions, getCustomizableStsClientCtor(STSClient, stsPlugins));
 
 /**
  * The default role assumer that used by credential providers when sts:AssumeRoleWithWebIdentity API is needed.
  */
 export const getDefaultRoleAssumerWithWebIdentity = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler"> = {},
+  stsOptions: STSRoleAssumerOptions = {},
   stsPlugins?: Pluggable<ServiceInputTypes, ServiceOutputTypes>[]
 ): RoleAssumerWithWebIdentity =>
   StsGetDefaultRoleAssumerWithWebIdentity(stsOptions, getCustomizableStsClientCtor(STSClient, stsPlugins));

codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/sts-client-defaultStsRoleAssumers.ts

@@ -1,4 +1,6 @@
-import { AwsCredentialIdentity, Provider } from "@smithy/types";
+import type { CredentialProviderOptions } from "@aws-sdk/types";
+import { partition } from "@aws-sdk/util-endpoints";
+import { AwsCredentialIdentity, Logger, Provider } from "@smithy/types";
 
 import { AssumeRoleCommand, AssumeRoleCommandInput } from "./commands/AssumeRoleCommand";
 import {
@@ -7,6 +9,14 @@ import {
 } from "./commands/AssumeRoleWithWebIdentityCommand";
 import type { STSClient, STSClientConfig, STSClientResolvedConfig } from "./STSClient";
 
+/**
+ * @public
+ */
+export type STSRoleAssumerOptions = Pick<STSClientConfig, "logger" | "region" | "requestHandler"> & {
+  credentialProviderLogger?: Logger;
+  parentClientConfig?: CredentialProviderOptions["parentClientConfig"];
+};
+
 /**
  * @internal
  */
@@ -18,40 +28,63 @@ export type RoleAssumer = (
 const ASSUME_ROLE_DEFAULT_REGION = "us-east-1";
 
 /**
- * Inject the fallback STS region of us-east-1.
+ * @internal
+ *
+ * Default to the us-east-1 region for aws partition,
+ * or default to the parent client region otherwise.
  */
-const decorateDefaultRegion = (region: string | Provider<string> | undefined): string | Provider<string> => {
-  if (typeof region !== "function") {
-    return region === undefined ? ASSUME_ROLE_DEFAULT_REGION : region;
+const resolveRegion = async (
+  _region: string | Provider<string> | undefined,
+  _parentRegion: string | Provider<string> | undefined,
+  credentialProviderLogger?: Logger
+): Promise<string> => {
+  const region: string | undefined = typeof _region === "function" ? await _region() : _region;
+  const parentRegion: string | undefined = typeof _parentRegion === "function" ? await _parentRegion() : _parentRegion;
+
+  if (!parentRegion || partition(parentRegion).name === "aws") {
+    credentialProviderLogger?.debug?.(
+      "@aws-sdk/client-sts::resolveRegion",
+      "accepting first of:",
+      `${region} (provider)`,
+      `${ASSUME_ROLE_DEFAULT_REGION} (STS default)`
+    );
+    return region ?? ASSUME_ROLE_DEFAULT_REGION;
+  } else {
+    credentialProviderLogger?.debug?.(
+      "@aws-sdk/client-sts::resolveRegion",
+      "accepting first of:",
+      `${region} (provider)`,
+      `${parentRegion} (parent client)`,
+      `${ASSUME_ROLE_DEFAULT_REGION} (STS default)`
+    );
+    return region ?? parentRegion ?? ASSUME_ROLE_DEFAULT_REGION;
   }
-  return async () => {
-    try {
-      return await region();
-    } catch (e) {
-      return ASSUME_ROLE_DEFAULT_REGION;
-    }
-  };
 };
 
 /**
  * The default role assumer that used by credential providers when sts:AssumeRole API is needed.
  * @internal
  */
 export const getDefaultRoleAssumer = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler">,
+  stsOptions: STSRoleAssumerOptions,
   stsClientCtor: new (options: STSClientConfig) => STSClient
 ): RoleAssumer => {
   let stsClient: STSClient;
   let closureSourceCreds: AwsCredentialIdentity;
   return async (sourceCreds, params) => {
     closureSourceCreds = sourceCreds;
     if (!stsClient) {
-      const { logger, region, requestHandler } = stsOptions;
+      const { logger, region, requestHandler, credentialProviderLogger } = stsOptions;
+      const resolvedRegion = await resolveRegion(
+        region,
+        stsOptions?.parentClientConfig?.region,
+        credentialProviderLogger
+      );
       stsClient = new stsClientCtor({
         logger,
         // A hack to make sts client uses the credential in current closure.
         credentialDefaultProvider: () => async () => closureSourceCreds,
-        region: decorateDefaultRegion(region || stsOptions.region),
+        region: resolvedRegion,
         ...(requestHandler ? { requestHandler } : {}),
       });
     }
@@ -82,16 +115,21 @@ export type RoleAssumerWithWebIdentity = (
  * @internal
  */
 export const getDefaultRoleAssumerWithWebIdentity = (
-  stsOptions: Pick<STSClientConfig, "logger" | "region" | "requestHandler">,
+  stsOptions: STSRoleAssumerOptions,
   stsClientCtor: new (options: STSClientConfig) => STSClient
 ): RoleAssumerWithWebIdentity => {
   let stsClient: STSClient;
   return async (params) => {
     if (!stsClient) {
-      const { logger, region, requestHandler } = stsOptions;
+      const { logger, region, requestHandler, credentialProviderLogger } = stsOptions;
+      const resolvedRegion = await resolveRegion(
+        region,
+        stsOptions?.parentClientConfig?.region,
+        credentialProviderLogger
+      );
       stsClient = new stsClientCtor({
         logger,
-        region: decorateDefaultRegion(region || stsOptions.region),
+        region: resolvedRegion,
         ...(requestHandler ? { requestHandler } : {}),
       });
     }

packages/core/src/httpAuthSchemes/aws_sdk/resolveAwsSdkSigV4Config.ts

@@ -111,9 +111,17 @@ export const resolveAwsSdkSigV4Config = <T>(
     // credentialDefaultProvider should always be populated, but in case
     // it isn't, set a default identity provider that throws an error
     if (config.credentialDefaultProvider) {
-      normalizedCreds = normalizeProvider(config.credentialDefaultProvider(config as any));
+      normalizedCreds = normalizeProvider(
+        config.credentialDefaultProvider(
+          Object.assign({}, config as any, {
+            parentClientConfig: config,
+          })
+        )
+      );
     } else {
-      normalizedCreds = async () => { throw new Error("`credentials` is missing") };
+      normalizedCreds = async () => {
+        throw new Error("`credentials` is missing");
+      };
     }
   }
 

packages/credential-provider-cognito-identity/src/fromCognitoIdentity.ts

@@ -40,7 +40,14 @@ export function fromCognitoIdentity(parameters: FromCognitoIdentityParameters):
         SecretKey = throwOnMissingSecretKey(),
         SessionToken,
       } = throwOnMissingCredentials(),
-    } = await (parameters.client ?? new CognitoIdentityClient(parameters.clientConfig ?? {})).send(
+    } = await (
+      parameters.client ??
+      new CognitoIdentityClient(
+        Object.assign({}, parameters.clientConfig ?? {}, {
+          region: parameters.clientConfig?.region ?? parameters.parentClientConfig?.region,
+        })
+      )
+    ).send(
       new GetCredentialsForIdentityCommand({
         CustomRoleArn: parameters.customRoleArn,
         IdentityId: parameters.identityId,

packages/credential-provider-cognito-identity/src/fromCognitoIdentityPool.ts

@@ -27,6 +27,7 @@ export function fromCognitoIdentityPool({
   logins,
   userIdentifier = !logins || Object.keys(logins).length === 0 ? "ANONYMOUS" : undefined,
   logger,
+  parentClientConfig,
 }: FromCognitoIdentityPoolParameters): CognitoIdentityCredentialProvider {
   logger?.debug("@aws-sdk/credential-provider-cognito-identity", "fromCognitoIdentity");
   const cacheKey: string | undefined = userIdentifier
@@ -35,7 +36,11 @@ export function fromCognitoIdentityPool({
 
   let provider: CognitoIdentityCredentialProvider = async () => {
     const { GetIdCommand, CognitoIdentityClient } = await import("./loadCognitoIdentity");
-    const _client = client ?? new CognitoIdentityClient(clientConfig ?? {});
+    const _client =
+      client ??
+      new CognitoIdentityClient(
+        Object.assign({}, clientConfig ?? {}, { region: clientConfig?.region ?? parentClientConfig?.region })
+      );
 
     let identityId: string | undefined = (cacheKey && (await cache.getItem(cacheKey))) as string | undefined;
     if (!identityId) {

packages/credential-provider-ini/src/resolveAssumeRoleCredentials.ts

@@ -88,7 +88,14 @@ export const resolveAssumeRoleCredentials = async (
 
   if (!options.roleAssumer) {
     const { getDefaultRoleAssumer } = await import("./loadSts");
-    options.roleAssumer = getDefaultRoleAssumer(options.clientConfig, options.clientPlugins);
+    options.roleAssumer = getDefaultRoleAssumer(
+      {
+        ...options.clientConfig,
+        credentialProviderLogger: options.logger,
+        parentClientConfig: options?.parentClientConfig,
+      },
+      options.clientPlugins
+    );
   }
 
   const { source_profile } = data;

packages/credential-provider-ini/src/resolveWebIdentityCredentials.ts

@@ -35,5 +35,6 @@ export const resolveWebIdentityCredentials = async (
       roleSessionName: profile.role_session_name,
       roleAssumerWithWebIdentity: options.roleAssumerWithWebIdentity,
       logger: options.logger,
+      parentClientConfig: options.parentClientConfig,
     })()
   );