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sql.go
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sql.go
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/*
* Copyright (c) 2018. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package meta
import (
"context"
"embed"
"time"
goqu "github.com/doug-martin/goqu/v9"
migrate "github.com/rubenv/sql-migrate"
"go.uber.org/zap"
"github.com/pydio/cells/v4/common/log"
"github.com/pydio/cells/v4/common/proto/idm"
service "github.com/pydio/cells/v4/common/proto/service"
"github.com/pydio/cells/v4/common/sql"
"github.com/pydio/cells/v4/common/sql/resources"
"github.com/pydio/cells/v4/common/utils/configx"
"github.com/pydio/cells/v4/common/utils/statics"
"github.com/pydio/cells/v4/common/utils/uuid"
"github.com/pydio/cells/v4/idm/meta/namespace"
)
var (
//go:embed migrations/*
migrationsFS embed.FS
queries = map[string]string{
"AddMeta": `insert into idm_usr_meta (uuid, node_uuid, namespace, owner, timestamp, format, data) values (?, ?,?,?,?,?,?)`,
"UpdateMeta": `update idm_usr_meta set node_uuid=?, namespace=?, owner=?, timestamp=?, format=?, data=? WHERE uuid=?`,
"Exists": `select uuid, data from idm_usr_meta where node_uuid=? and namespace=? and owner=?`,
"ExistsByUuid": `select data from idm_usr_meta where uuid=?`,
"DeleteMeta": `delete from idm_usr_meta where uuid=?`,
}
)
// Impl of the SQL interface
type sqlimpl struct {
*sql.Handler
*resources.ResourcesSQL
nsDAO namespace.DAO
}
func (dao *sqlimpl) GetNamespaceDao() namespace.DAO {
return dao.nsDAO
}
// Init handler for the SQL DAO
func (dao *sqlimpl) Init(ctx context.Context, options configx.Values) error {
// super
if er := dao.DAO.Init(ctx, options); er != nil {
return er
}
// Preparing the resources
dao.ResourcesSQL = resources.NewDAO(dao.Handler, "idm_usr_meta.uuid").(*resources.ResourcesSQL)
if err := dao.ResourcesSQL.Init(ctx, options); err != nil {
return err
}
// Doing the database migrations
migrations := &sql.FSMigrationSource{
Box: statics.AsFS(migrationsFS, "migrations"),
Dir: dao.Driver(),
TablePrefix: dao.Prefix(),
}
_, err := sql.ExecMigration(dao.DB(), dao.Driver(), migrations, migrate.Up, "idm_usr_meta_")
if err != nil {
return err
}
// Preparing the db statements
if options.Val("prepare").Default(true).Bool() {
for key, query := range queries {
if err := dao.Prepare(key, query); err != nil {
return err
}
}
}
// Initing namespace
nsDAO, err := namespace.NewDAO(ctx, dao.Handler)
if err != nil {
return err
}
if err := nsDAO.Init(ctx, options); err != nil {
return err
}
dao.nsDAO = nsDAO.(namespace.DAO)
return nil
}
// Set adds or updates a UserMeta to the DB
func (dao *sqlimpl) Set(meta *idm.UserMeta) (*idm.UserMeta, string, error) {
var (
previousValue string
metaId string
update bool
)
owner := dao.extractOwner(meta.Policies)
stmt, er := dao.GetStmt("Exists")
if er != nil {
return nil, previousValue, er
}
exists := stmt.QueryRow(meta.NodeUuid, meta.Namespace, owner)
if err := exists.Scan(&metaId, &previousValue); err == nil && metaId != "" {
update = true
// Replace empty string by empty json meta
if previousValue == "\"\"" {
previousValue = ""
}
} else {
metaId = uuid.New()
}
if update {
stmt, er := dao.GetStmt("UpdateMeta")
if er != nil {
return nil, previousValue, er
}
if _, err := stmt.Exec(
meta.NodeUuid,
meta.Namespace,
owner,
int32(time.Now().Unix()),
"json",
meta.JsonValue,
&metaId,
); err != nil {
return meta, previousValue, err
}
} else {
stmt, er := dao.GetStmt("AddMeta")
if er != nil {
return nil, previousValue, er
}
if _, err := stmt.Exec(
metaId,
meta.NodeUuid,
meta.Namespace,
owner,
time.Now().Unix(),
"json",
meta.JsonValue,
); err != nil {
return meta, previousValue, err
}
}
meta.Uuid = metaId
var err error
if len(meta.Policies) > 0 {
for _, p := range meta.Policies {
p.Resource = meta.Uuid
}
err = dao.AddPolicies(update, meta.Uuid, meta.Policies)
}
return meta, previousValue, err
}
// Del deletes meta by their Id.
func (dao *sqlimpl) Del(meta *idm.UserMeta) (previousValue string, e error) {
stmt, er := dao.GetStmt("ExistsByUuid")
if er != nil {
return previousValue, er
}
exists := stmt.QueryRow(meta.Uuid)
exists.Scan(&previousValue)
// Replace empty string by empty json meta
if previousValue == "\"\"" {
previousValue = ""
}
stmt, er = dao.GetStmt("DeleteMeta")
if er != nil {
return "", er
}
if _, e := stmt.Exec(meta.Uuid); e != nil {
return "", e
} else if e := dao.DeletePoliciesForResource(meta.Uuid); e != nil {
return "", e
}
return previousValue, nil
}
// Search meta on their conditions
func (dao *sqlimpl) Search(metaIds []string, nodeUuids []string, namespace string, ownerSubject string, resourceQuery *service.ResourcePolicyQuery) ([]*idm.UserMeta, error) {
db := goqu.New(dao.Driver(), dao.DB())
var wheres []goqu.Expression
policyQ, err := dao.BuildPolicyConditionForAction(resourceQuery, service.ResourcePolicyAction_READ)
if err != nil {
return nil, err
}
if policyQ != nil {
wheres = append(wheres, policyQ)
}
if len(metaIds) > 0 {
var ors []goqu.Expression
for _, metaId := range metaIds {
ors = append(ors, goqu.C("uuid").Eq(metaId))
}
wheres = append(wheres, goqu.Or(ors...))
}
if len(nodeUuids) > 0 {
var ors []goqu.Expression
for _, nodeId := range nodeUuids {
ors = append(ors, goqu.C("node_uuid").Eq(nodeId))
}
wheres = append(wheres, goqu.Or(ors...))
}
if namespace != "" {
wheres = append(wheres, goqu.C("namespace").Eq(namespace))
}
if ownerSubject != "" {
wheres = append(wheres, goqu.C("owner").Eq(ownerSubject))
}
if len(wheres) == 0 {
return nil, err
}
dataset := db.
From("idm_usr_meta").
Prepared(true).
Where(goqu.And(wheres...))
var items []struct {
UUID string `db:"uuid"`
NodeUUID string `db:"node_uuid"`
Namespace string `db:"namespace"`
JSONValue string `db:"data"`
}
if err := dataset.ScanStructs(&items); err != nil {
return nil, err
}
var results []*idm.UserMeta
for _, item := range items {
userMeta := new(idm.UserMeta)
userMeta.Uuid = item.UUID
userMeta.NodeUuid = item.NodeUUID
userMeta.Namespace = item.Namespace
userMeta.JsonValue = item.JSONValue
if policies, e := dao.GetPoliciesForResource(userMeta.Uuid); e == nil {
userMeta.Policies = policies
} else {
log.Logger(context.Background()).Error("cannot load resource policies for uuid: "+userMeta.Uuid, zap.Error(e))
}
results = append(results, userMeta)
}
return results, nil
}
func (*sqlimpl) extractOwner(policies []*service.ResourcePolicy) (owner string) {
for _, policy := range policies {
if policy.Action == service.ResourcePolicyAction_OWNER {
return policy.Subject
}
}
return ""
}