talatuyarer commented on code in PR #13212: URL: https://github.com/apache/iceberg/pull/13212#discussion_r2151057944
########## gcp/src/main/java/org/apache/iceberg/gcp/auth/GoogleAuthSession.java: ########## @@ -0,0 +1,98 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.iceberg.gcp.auth; + +import com.google.auth.oauth2.AccessToken; +import com.google.auth.oauth2.GoogleCredentials; +import java.io.IOException; +import java.io.UncheckedIOException; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.rest.HTTPHeaders; +import org.apache.iceberg.rest.HTTPRequest; +import org.apache.iceberg.rest.ImmutableHTTPRequest; +import org.apache.iceberg.rest.auth.AuthSession; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * An authentication session that uses Google Credentials (typically Application Default + * Credentials) to obtain an OAuth2 access token and add it to HTTP requests. + */ +public class GoogleAuthSession implements AuthSession { + private static final Logger LOG = LoggerFactory.getLogger(GoogleAuthSession.class); + private final GoogleCredentials credentials; + + /** + * Constructs a GoogleAuthSession with the provided GoogleCredentials. + * + * @param credentials The GoogleCredentials to use for authentication. + */ + public GoogleAuthSession(GoogleCredentials credentials) { + Preconditions.checkArgument(credentials != null, "Invalid credentials: null"); + this.credentials = credentials; + } + + /** + * Authenticates the given HTTP request by adding an "Authorization: Bearer token" header. The + * access token is obtained from the GoogleCredentials. + * + * @param request The HTTPRequest to authenticate. + * @return A new HTTPRequest with the added Authorization header. + * @throws UncheckedIOException if an IOException occurs while refreshing the access token. + */ + @Override + public HTTPRequest authenticate(HTTPRequest request) { + try { + // Ensure the credentials have a valid token, refreshing if necessary. + // refreshIfExpired() returns true if the token was refreshed, false otherwise. + // In either case, getAccessToken() after this call should provide a usable token. + credentials.refreshIfExpired(); + AccessToken token = credentials.getAccessToken(); + + if (token != null && token.getTokenValue() != null) { + HTTPHeaders newHeaders = + request + .headers() + .putIfAbsent( + HTTPHeaders.of( + HTTPHeaders.HTTPHeader.of( + "Authorization", "Bearer " + token.getTokenValue()))); + return newHeaders.equals(request.headers()) + ? request + : ImmutableHTTPRequest.builder().from(request).headers(newHeaders).build(); + } else { + LOG.warn( Review Comment: Thank you you are why we return back request if it does not have Auth -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
