anujmodi2021 commented on code in PR #6787:
URL: https://github.com/apache/hadoop/pull/6787#discussion_r1622201887
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hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/oauth2/AzureADAuthenticator.java:
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@@ -103,14 +105,55 @@ public static AzureADToken
getTokenUsingClientCreds(String authEndpoint,
} else {
qp.add("resource", RESOURCE_NAME);
}
- qp.add("grant_type", "client_credentials");
+ qp.add("grant_type", CLIENT_CREDENTIALS);
qp.add("client_id", clientId);
qp.add("client_secret", clientSecret);
LOG.debug("AADToken: starting to fetch token using client creds for client
ID " + clientId);
return getTokenCall(authEndpoint, qp.serialize(), null, null);
}
+ /**
+ * Gets Azure Active Directory token using the user ID and a JWT assertion
+ * generated by a federated authentication process.
+ *
+ * The federation process uses a feature from Azure Active Directory
+ * called workload identity. A workload identity is an identity used
+ * by a software workload (such as an application, service, script,
+ * or container) to authenticate and access other services and resources.
+ *
+ *
+ * @param authEndpoint the OAuth 2.0 token endpoint associated
+ * with the user's directory (obtain from
+ * Active Directory configuration)
+ * @param clientId the client ID (GUID) of the client web app
+ * obtained from Azure Active Directory configuration
+ * @param clientAssertion the JWT assertion token
+ * @return {@link AzureADToken} obtained using the creds
+ * @throws IOException throws IOException if there is a failure in
connecting to Azure AD
+ */
+ public static AzureADToken getTokenUsingJWTAssertion(String authEndpoint,
+ String clientId, String clientAssertion) throws IOException {
+ Preconditions.checkNotNull(authEndpoint, "authEndpoint");
+ Preconditions.checkNotNull(clientId, "clientId");
+ Preconditions.checkNotNull(clientAssertion, "clientAssertion");
+ boolean isVersion2AuthenticationEndpoint =
authEndpoint.contains("/oauth2/v2.0/");
Review Comment:
Good suggestion.
Taken
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