RevokeRoleCommand.java

// 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.doris.nereids.trees.plans.commands;

import org.apache.doris.analysis.StmtType;
import org.apache.doris.analysis.UserIdentity;
import org.apache.doris.catalog.Env;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.Config;
import org.apache.doris.common.ErrorReport;
import org.apache.doris.common.FeNameFormat;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.StmtExecutor;

import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

/**
 * REVOKE role [, role] FROM user_identity
 */
public class RevokeRoleCommand extends Command implements ForwardWithSync {
    private final UserIdentity userIdentity;
    private final List<String> roles;

    public RevokeRoleCommand(UserIdentity userIdentity, List<String> roles) {
        super(PlanType.REVOKE_ROLE_COMMAND);
        this.userIdentity = Objects.requireNonNull(userIdentity, "userIdentity is null");
        this.roles = Objects.requireNonNull(roles, "roles is null");
    }

    @Override
    public void run(ConnectContext ctx, StmtExecutor executor) throws Exception {
        validate();
        Env.getCurrentEnv().getAuth().revokeRole(this);
    }

    /**
     * validate
     */
    public void validate() throws AnalysisException {
        if (Config.access_controller_type.equalsIgnoreCase("ranger-doris")) {
            throw new AnalysisException("Revoke is prohibited when Ranger is enabled.");
        }
        userIdentity.analyze();

        for (int i = 0; i < roles.size(); i++) {
            String originalRoleName = roles.get(i);
            FeNameFormat.checkRoleName(originalRoleName, true /* can be admin */, "Can not revoke role");
        }

        GrantRoleCommand.checkRolePrivileges();
        if (roles.stream().map(String::toLowerCase).collect(Collectors.toList()).contains("admin")
                && userIdentity.isAdminUser()) {
            ErrorReport.reportAnalysisException("Unsupported operation");
        }
    }

    @Override
    public <R, C> R accept(PlanVisitor<R, C> visitor, C context) {
        return visitor.visitRevokeRoleCommand(this, context);
    }

    @Override
    public StmtType stmtType() {
        return StmtType.REVOKE;
    }

    public UserIdentity getUserIdentity() {
        return userIdentity;
    }

    public List<String> getRoles() {
        return roles;
    }
}