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87 lines
3.2 KiB
87 lines
3.2 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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"crypto/tls"
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"github.com/pingcap/parser/auth"
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"github.com/pingcap/parser/mysql"
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"github.com/pingcap/tidb/sessionctx"
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"github.com/pingcap/tidb/types"
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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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// Manager is the interface for providing privilege related operations.
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type Manager interface {
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// ShowGrants shows granted privileges for user.
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ShowGrants(ctx sessionctx.Context, user *auth.UserIdentity, roles []*auth.RoleIdentity) ([]string, error)
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// GetEncodedPassword shows the encoded password for user.
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GetEncodedPassword(user, host string) string
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// RequestVerification verifies user privilege for the request.
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// If table is "", only check global/db scope privileges.
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// If table is not "", check global/db/table scope privileges.
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// priv should be a defined constant like CreatePriv, if pass AllPrivMask to priv,
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// this means any privilege would be OK.
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RequestVerification(activeRole []*auth.RoleIdentity, db, table, column string, priv mysql.PrivilegeType) bool
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// RequestVerificationWithUser verifies specific user privilege for the request.
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RequestVerificationWithUser(db, table, column string, priv mysql.PrivilegeType, user *auth.UserIdentity) bool
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// ConnectionVerification verifies user privilege for connection.
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ConnectionVerification(user, host string, auth, salt []byte, tlsState *tls.ConnectionState) (string, string, bool)
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// GetAuthWithoutVerification uses to get auth name without verification.
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GetAuthWithoutVerification(user, host string) (string, string, bool)
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// DBIsVisible returns true is the database is visible to current user.
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DBIsVisible(activeRole []*auth.RoleIdentity, db string) bool
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// UserPrivilegesTable provide data for INFORMATION_SCHEMA.USERS_PRIVILEGE table.
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UserPrivilegesTable() [][]types.Datum
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// ActiveRoles active roles for current session.
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// The first illegal role will be returned.
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ActiveRoles(ctx sessionctx.Context, roleList []*auth.RoleIdentity) (bool, string)
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// FindEdge find if there is an edge between role and user.
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FindEdge(ctx sessionctx.Context, role *auth.RoleIdentity, user *auth.UserIdentity) bool
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// GetDefaultRoles returns all default roles for certain user.
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GetDefaultRoles(user, host string) []*auth.RoleIdentity
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// GetAllRoles return all roles of user.
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GetAllRoles(user, host string) []*auth.RoleIdentity
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}
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const key keyType = 0
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// BindPrivilegeManager binds Manager to context.
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func BindPrivilegeManager(ctx sessionctx.Context, pc Manager) {
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ctx.SetValue(key, pc)
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}
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// GetPrivilegeManager gets Checker from context.
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func GetPrivilegeManager(ctx sessionctx.Context) Manager {
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if v, ok := ctx.Value(key).(Manager); 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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