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/*
* 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.accumulo.core.client.admin;
import java.util.Set;
import org.apache.accumulo.core.client.AccumuloException;
import org.apache.accumulo.core.client.AccumuloSecurityException;
import org.apache.accumulo.core.client.security.tokens.AuthenticationToken;
import org.apache.accumulo.core.client.security.tokens.DelegationToken;
import org.apache.accumulo.core.client.security.tokens.PasswordToken;
import org.apache.accumulo.core.security.Authorizations;
import org.apache.accumulo.core.security.NamespacePermission;
import org.apache.accumulo.core.security.SystemPermission;
import org.apache.accumulo.core.security.TablePermission;
/**
* Provides a class for managing users and permissions
*/
public interface SecurityOperations {
/**
* Create a user
*
* @param principal
* the name of the user to create
* @param password
* the plaintext password for the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to create a user
* @since 1.5.0
*/
void createLocalUser(String principal, PasswordToken password) throws AccumuloException, AccumuloSecurityException;
/**
* Delete a user
*
* @param principal
* the user name to delete
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to delete a user
* @since 1.5.0
*/
void dropLocalUser(String principal) throws AccumuloException, AccumuloSecurityException;
/**
* Verify a username/password combination is valid
*
* @param principal
* the name of the user to authenticate
* @param token
* the SecurityToken for the user
* @return true if the user asking is allowed to know and the specified principal/token is valid, false otherwise
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to ask
* @since 1.5.0
*/
boolean authenticateUser(String principal, AuthenticationToken token) throws AccumuloException, AccumuloSecurityException;
/**
* Set the user's password
*
* @param principal
* the name of the user to modify
* @param token
* the plaintext password for the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to modify a user
* @since 1.5.0
*/
void changeLocalUserPassword(String principal, PasswordToken token) throws AccumuloException, AccumuloSecurityException;
/**
* Set the user's record-level authorizations
*
* @param principal
* the name of the user to modify
* @param authorizations
* the authorizations that the user has for scanning
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to modify a user
*/
void changeUserAuthorizations(String principal, Authorizations authorizations) throws AccumuloException, AccumuloSecurityException;
/**
* Retrieves the user's authorizations for scanning
*
* @param principal
* the name of the user to query
* @return the set of authorizations the user has available for scanning
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to query a user
*/
Authorizations getUserAuthorizations(String principal) throws AccumuloException, AccumuloSecurityException;
/**
* Verify the user has a particular system permission
*
* @param principal
* the name of the user to query
* @param perm
* the system permission to check for
* @return true if user has that permission; false otherwise
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to query a user
*/
boolean hasSystemPermission(String principal, SystemPermission perm) throws AccumuloException, AccumuloSecurityException;
/**
* Verify the user has a particular table permission
*
* @param principal
* the name of the user to query
* @param table
* the name of the table to query about
* @param perm
* the table permission to check for
* @return true if user has that permission; false otherwise
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to query a user
*/
boolean hasTablePermission(String principal, String table, TablePermission perm) throws AccumuloException, AccumuloSecurityException;
/**
* Verify the user has a particular namespace permission
*
* @param principal
* the name of the user to query
* @param namespace
* the name of the namespace to query about
* @param perm
* the namespace permission to check for
* @return true if user has that permission; false otherwise
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to query a user
*/
boolean hasNamespacePermission(String principal, String namespace, NamespacePermission perm) throws AccumuloException, AccumuloSecurityException;
/**
* Grant a user a system permission
*
* @param principal
* the name of the user to modify
* @param permission
* the system permission to grant to the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to grant a user permissions
*/
void grantSystemPermission(String principal, SystemPermission permission) throws AccumuloException, AccumuloSecurityException;
/**
* Grant a user a specific permission for a specific table
*
* @param principal
* the name of the user to modify
* @param table
* the name of the table to modify for the user
* @param permission
* the table permission to grant to the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to grant a user permissions
*/
void grantTablePermission(String principal, String table, TablePermission permission) throws AccumuloException, AccumuloSecurityException;
/**
* Grant a user a specific permission for a specific namespace
*
* @param principal
* the name of the user to modify
* @param namespace
* the name of the namespace to modify for the user
* @param permission
* the namespace permission to grant to the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to grant a user permissions
*/
void grantNamespacePermission(String principal, String namespace, NamespacePermission permission) throws AccumuloException, AccumuloSecurityException;
/**
* Revoke a system permission from a user
*
* @param principal
* the name of the user to modify
* @param permission
* the system permission to revoke for the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to revoke a user's permissions
*/
void revokeSystemPermission(String principal, SystemPermission permission) throws AccumuloException, AccumuloSecurityException;
/**
* Revoke a table permission for a specific user on a specific table
*
* @param principal
* the name of the user to modify
* @param table
* the name of the table to modify for the user
* @param permission
* the table permission to revoke for the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to revoke a user's permissions
*/
void revokeTablePermission(String principal, String table, TablePermission permission) throws AccumuloException, AccumuloSecurityException;
/**
* Revoke a namespace permission for a specific user on a specific namespace
*
* @param principal
* the name of the user to modify
* @param namespace
* the name of the namespace to modify for the user
* @param permission
* the namespace permission to revoke for the user
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to revoke a user's permissions
*/
void revokeNamespacePermission(String principal, String namespace, NamespacePermission permission) throws AccumuloException, AccumuloSecurityException;
/**
* Return a list of users in accumulo
*
* @return a set of user names
* @throws AccumuloException
* if a general error occurs
* @throws AccumuloSecurityException
* if the user does not have permission to query users
* @since 1.5.0
*/
Set<String> listLocalUsers() throws AccumuloException, AccumuloSecurityException;
/**
* Obtain a {@link DelegationToken} for use when Kerberos credentials cannot be used (e.g. YARN Jobs)
*
* @since 1.7.0
*/
DelegationToken getDelegationToken(DelegationTokenConfig cfg) throws AccumuloException, AccumuloSecurityException;
}