HADOOP-13499. Support session credentials for authenticating with Aliyun. Contributed by Genmao Yu.

hadoop-tools/hadoop-aliyun/src/main/java/org/apache/hadoop/fs/aliyun/oss/Constants.java

@@ -31,8 +31,9 @@ private Constants() {
       "fs.oss.credentials.provider";
 
   // OSS access verification
-  public static final String ACCESS_KEY = "fs.oss.access.key";
+  public static final String ACCESS_KEY = "fs.oss.accessKeyId";
-  public static final String SECRET_KEY = "fs.oss.secret.key";
+  public static final String SECRET_KEY = "fs.oss.accessKeySecret";
+  public static final String SECURITY_TOKEN = "fs.oss.securityToken";
 
   // Number of simultaneous connections to oss
   public static final String MAXIMUM_CONNECTIONS_KEY =

hadoop-tools/hadoop-aliyun/src/main/java/org/apache/hadoop/fs/aliyun/oss/TemporaryAliyunCredentialsProvider.java

@@ -0,0 +1,64 @@
+/**
+ * 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.hadoop.fs.aliyun.oss;
+
+import com.aliyun.oss.common.auth.Credentials;
+import com.aliyun.oss.common.auth.CredentialsProvider;
+import com.aliyun.oss.common.auth.DefaultCredentials;
+import com.aliyun.oss.common.auth.InvalidCredentialsException;
+import org.apache.commons.lang.StringUtils;
+import org.apache.hadoop.conf.Configuration;
+
+import java.net.URI;
+
+import static org.apache.hadoop.fs.aliyun.oss.Constants.*;
+
+/**
+ * Support session credentials for authenticating with ALiyun.
+ */
+public class TemporaryAliyunCredentialsProvider implements CredentialsProvider {
+  public static final String NAME
+      = "org.apache.hadoop.fs.aliyun.oss.TemporaryAliyunCredentialsProvider";
+  private final String accessKeyId;
+  private final String accessKeySecret;
+  private final String securityToken;
+
+  public TemporaryAliyunCredentialsProvider(URI uri, Configuration conf) {
+    this.accessKeyId = conf.get(ACCESS_KEY, null);
+    this.accessKeySecret = conf.get(SECRET_KEY, null);
+    this.securityToken = conf.get(SECURITY_TOKEN, null);
+  }
+
+  @Override
+  public void setCredentials(Credentials creds) {
+
+  }
+
+  @Override
+  public Credentials getCredentials() {
+    if (!StringUtils.isEmpty(accessKeyId)
+        && !StringUtils.isEmpty(accessKeySecret)
+        && !StringUtils.isEmpty(securityToken)) {
+      return new DefaultCredentials(accessKeyId, accessKeySecret,
+          securityToken);
+    }
+    throw new InvalidCredentialsException(
+        "AccessKeyId, AccessKeySecret or SecurityToken is unset");
+  }
+}

hadoop-tools/hadoop-aliyun/src/test/java/org/apache/hadoop/fs/aliyun/oss/TestOSSTemporaryCredentials.java

@@ -0,0 +1,64 @@
+/**
+ * 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.hadoop.fs.aliyun.oss;
+
+import com.aliyun.oss.common.auth.Credentials;
+import com.aliyun.oss.common.auth.InvalidCredentialsException;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.aliyun.oss.contract.OSSContract;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.apache.hadoop.fs.contract.AbstractFSContractTestBase;
+import org.junit.Test;
+
+import java.net.URI;
+
+import static org.apache.hadoop.fs.aliyun.oss.Constants.ACCESS_KEY;
+import static org.apache.hadoop.fs.aliyun.oss.Constants.SECRET_KEY;
+import static org.apache.hadoop.fs.aliyun.oss.Constants.SECURITY_TOKEN;
+
+/**
+ * Tests use of temporary credentials (for example, Aliyun STS & Aliyun OSS).
+ * This test extends a class that "does things to the root directory", and
+ * should only be used against transient filesystems where you don't care about
+ * the data.
+ */
+public class TestOSSTemporaryCredentials extends AbstractFSContractTestBase {
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new OSSContract(conf);
+  }
+
+  @Test
+  public void testTemporaryCredentialValidation() throws Throwable {
+    Configuration conf = new Configuration();
+    conf.set(ACCESS_KEY, "accessKeyId");
+    conf.set(SECRET_KEY, "accessKeySecret");
+    conf.set(SECURITY_TOKEN, "");
+    URI uri = getFileSystem().getUri();
+    TemporaryAliyunCredentialsProvider provider
+        = new TemporaryAliyunCredentialsProvider(uri, conf);
+    try {
+      Credentials credentials = provider.getCredentials();
+      fail("Expected a CredentialInitializationException, got " + credentials);
+    } catch (InvalidCredentialsException expected) {
+      // expected
+    }
+  }
+}