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51 lines
1.5 KiB
51 lines
1.5 KiB
// Copyright 2015 PingCAP, Inc.
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package privilege
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import (
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"github.com/pingcap/tidb/context"
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"github.com/pingcap/tidb/model"
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"github.com/pingcap/tidb/mysql"
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)
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type keyType int
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func (k keyType) String() string {
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return "privilege-key"
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}
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// Checker is the interface for check privileges.
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type Checker interface {
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// Check checks privilege.
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// If tbl is nil, only check global/db scope privileges.
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// If tbl is not nil, check global/db/table scope privileges.
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Check(ctx context.Context, db *model.DBInfo, tbl *model.TableInfo, privilege mysql.PrivilegeType) (bool, error)
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// Show granted privileges for user.
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ShowGrants(ctx context.Context, user string) ([]string, error)
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}
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const key keyType = 0
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// BindPrivilegeChecker binds Checker to context.
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func BindPrivilegeChecker(ctx context.Context, pc Checker) {
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ctx.SetValue(key, pc)
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}
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// GetPrivilegeChecker gets Checker from context.
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func GetPrivilegeChecker(ctx context.Context) Checker {
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if v, ok := ctx.Value(key).(Checker); ok {
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return v
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}
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return nil
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}
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