99 lines
1.8 KiB
Go
99 lines
1.8 KiB
Go
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// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package db
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import (
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"context"
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"github.com/abcum/surreal/cnf"
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"github.com/abcum/surreal/sql"
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)
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func (e *executor) executeUse(ctx context.Context, stm *sql.UseStatement) (out []interface{}, err error) {
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// If a NAMESPACE has been defined, then
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// process the permissions, or return an
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// error if we can't specify a namespace.
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if len(stm.NS) > 0 {
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if perm(ctx) == cnf.AuthKV {
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e.ns = stm.NS
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}
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if perm(ctx) == cnf.AuthNS {
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if e.ns != stm.NS {
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err = new(QueryError)
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}
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}
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if perm(ctx) == cnf.AuthDB {
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if e.ns != stm.NS {
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err = new(QueryError)
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}
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}
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if perm(ctx) == cnf.AuthSC {
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if e.ns != stm.NS {
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err = new(QueryError)
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}
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}
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if perm(ctx) == cnf.AuthNO {
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e.ns = stm.NS
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}
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}
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// If a DATABASE has been defined, then
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// process the permissions, or return an
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// error if we can't specify a database.
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if len(stm.DB) > 0 {
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if perm(ctx) == cnf.AuthKV {
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e.db = stm.DB
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}
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if perm(ctx) == cnf.AuthNS {
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e.db = stm.DB
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}
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if perm(ctx) == cnf.AuthDB {
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if e.db != stm.DB {
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err = new(QueryError)
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}
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}
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if perm(ctx) == cnf.AuthSC {
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if e.db != stm.DB {
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err = new(QueryError)
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}
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}
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if perm(ctx) == cnf.AuthNO {
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e.db = stm.DB
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}
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}
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if err != nil {
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e.ns, e.db = "", ""
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}
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return
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}
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