GrantRoleCommand.java

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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.ErrorCode;
import org.apache.doris.common.ErrorReport;
import org.apache.doris.mysql.privilege.PrivPredicate;
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 com.google.common.base.Preconditions;

import java.util.List;
import java.util.Objects;

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

    public GrantRoleCommand(UserIdentity userIdentity, List<String> roles) {
        super(PlanType.GRANT_ROLE_COMMAND);
        Preconditions.checkArgument(roles.size() > 0, "roles doesn't exist");

        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().grantRoleCommand(this);
    }

    public void validate() throws AnalysisException {
        userIdentity.analyze();
        checkRolePrivileges();
    }

    public static void checkRolePrivileges() throws AnalysisException {
        if (!Env.getCurrentEnv().getAccessManager().checkGlobalPriv(ConnectContext.get(), PrivPredicate.GRANT)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR, "GRANT/REVOKE");
        }
    }

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

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

    public UserIdentity getUserIdentity() {
        return userIdentity;
    }

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