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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 key
import (
"context"
"github.com/micro/go-micro/errors"
"github.com/pydio/cells/common/log"
"go.uber.org/zap"
sqldb "database/sql"
"github.com/pydio/cells/common"
"github.com/pydio/cells/common/proto/encryption"
"github.com/pydio/cells/common/sql"
"github.com/pydio/packr"
"github.com/rubenv/sql-migrate"
)
var (
queries = map[string]interface{}{
"node_select": `SELECT * FROM enc_nodes WHERE node_id=?;`,
"node_insert": `INSERT INTO enc_nodes VALUES (?, ?);`,
"node_update": `UPDATE enc_nodes SET legacy=? WHERE node_id=?;`,
"node_delete": `DELETE FROM enc_nodes WHERE node_id=?;`,
"node_key_insert": `INSERT INTO enc_node_keys (node_id,owner_id,user_id,key_data) VALUES (?,?,?,?)`,
"node_key_select": `SELECT * FROM enc_node_keys WHERE node_id=? AND user_id=?;`,
"node_key_select_all": `SELECT * FROM enc_node_keys WHERE node_id=?;`,
"node_key_copy": `INSERT INTO enc_node_keys (SELECT ?, owner_id, user_id, key_data FROM enc_node_keys WHERE node_id=?);`,
"node_key_delete": `DELETE FROM enc_node_keys WHERE node_id=? AND user_id=?;`,
"node_shared_key_delete": `DELETE FROM enc_node_keys WHERE user_id<>owner_id AND node_id=? AND owner_id=? AND user_id=?`,
"node_shared_key_delete_all": `DELETE FROM enc_node_keys WHERE user_id<>owner_id AND node_id=? AND owner_id=?`,
"node_block_insert": `INSERT INTO enc_node_blocks VALUES (?, ?, ?, ?, ?, ?, ?);`,
"node_block_select": `SELECT * FROM enc_node_blocks WHERE node_id=? order by part_id, seq_start;`,
"node_block_copy": `INSERT INTO enc_node_blocks (SELECT ?, part_id, seq_start, seq_end, block_data_size, block_header_size, owner FROM enc_node_blocks WHERE node_id=?);`,
"node_block_delete": `DELETE FROM enc_node_blocks WHERE node_id=?;`,
"node_block_part_delete": `DELETE FROM enc_node_blocks WHERE node_id=? and part_id=?;`,
"node_legacy_block_select": `SELECT * FROM enc_legacy_nodes WHERE node_id=?;`,
"node_legacy_block_delete": `DELETE FROM enc_legacy_nodes WHERE node_id=?;`,
"node_legacy_part_block_delete": `DELETE FROM enc_legacy_nodes WHERE node_id=? and part_id=?;`,
}
)
type sqlimpl struct {
sql.DAO
}
// Init handler for the SQL DAO
func (h *sqlimpl) Init(options common.ConfigValues) error {
// super
if err := h.DAO.Init(options); err != nil {
return err
}
// Doing the database migrations
migrations := &sql.PackrMigrationSource{
Box: packr.NewBox("../../data/key/migrations"),
Dir: h.Driver(),
TablePrefix: h.Prefix(),
}
_, err := sql.ExecMigration(h.DB(), h.Driver(), migrations, migrate.Up, h.Prefix()+"_data-key.")
if err != nil {
return err
}
// Preparing the db statements
if options.Bool("prepare", true) {
for key, query := range queries {
if err := h.Prepare(key, query); err != nil {
log.Logger(context.Background()).Error("failed to prepare statement", zap.String("name", key), zap.Error(err))
return err
}
}
}
return nil
}
func (h *sqlimpl) ListEncryptedBlockInfo(nodeUuid string) (QueryResultCursor, error) {
stmt, er := h.GetStmt("node_block_select")
if er != nil {
return nil, er
}
rows, err := stmt.Query(nodeUuid)
if err != nil {
log.Error("failed to list node blocks", zap.Error(err))
return nil, err
}
return NewDBCursor(rows, scanBlock), nil
}
func (h *sqlimpl) SaveEncryptedBlockInfo(nodeUuid string, b *RangedBlocks) error {
stmt, er := h.GetStmt("node_block_insert")
if er != nil {
return er
}
_, err := stmt.Exec(nodeUuid, b.PartId, b.SeqStart, b.SeqEnd, b.BlockSize, b.HeaderSize, b.OwnerId)
return err
}
func (h *sqlimpl) GetEncryptedLegacyBlockInfo(nodeUuid string) (*RangedBlocks, error) {
stmt, er := h.GetStmt("node_legacy_block_select")
if er != nil {
return nil, er
}
rows, err := stmt.Query(nodeUuid)
if err != nil {
return nil, err
}
defer rows.Close()
if rows.Next() {
block := new(RangedBlocks)
var nodeId string
err = rows.Scan(&nodeId, &block.Nonce, &block.BlockSize)
return block, err
}
return nil, errors.NotFound("node.key.dao", "no info found for node %s", nodeUuid)
}
func (h *sqlimpl) ClearNodeEncryptedBlockInfo(nodeUuid string) error {
stmt, er := h.GetStmt("node_block_delete")
if er != nil {
return er
}
_, err := stmt.Exec(nodeUuid)
return err
}
func (h *sqlimpl) ClearNodeEncryptedPartBlockInfo(nodeUuid string, partID int) error {
stmt, er := h.GetStmt("node_part_block_delete")
if er != nil {
return er
}
_, err := stmt.Exec(nodeUuid, partID)
return err
}
func (h *sqlimpl) CopyNode(srcUuid string, targetUuid string) error {
ctx := context.Background()
err := h.SaveNode(&encryption.Node{
NodeId: targetUuid,
Legacy: false,
})
if err != nil {
log.Logger(ctx).Error("failed to save new node", zap.Error(err))
return err
}
keysCursor, err := h.GetAllNodeKey(srcUuid)
if err != nil {
log.Logger(ctx).Error("failed to list source key list", zap.Error(err))
return err
}
defer keysCursor.Close()
for keysCursor.HasNext() {
ki, err := keysCursor.Next()
if err != nil {
_ = keysCursor.Close()
return err
}
nodeKey := ki.(*encryption.NodeKey)
nodeKey.NodeId = targetUuid
err = h.SaveNodeKey(nodeKey)
if err != nil {
log.Logger(ctx).Error("failed to save key", zap.Any("key", nodeKey), zap.Error(err))
_ = keysCursor.Close()
return err
}
}
cursor, err := h.ListEncryptedBlockInfo(srcUuid)
if err != nil {
log.Logger(ctx).Error("failed to list source block list", zap.Error(err))
return err
}
defer cursor.Close()
stmt, er := h.GetStmt("node_block_insert")
if er != nil {
return er
}
for cursor.HasNext() {
bi, err := cursor.Next()
if err != nil {
log.Error("failed to get next block in cursor", zap.Error(err))
_ = cursor.Close()
return err
}
b := bi.(*RangedBlocks)
_, err = stmt.Exec(targetUuid, b.PartId, b.SeqStart, b.SeqEnd, b.BlockSize, b.HeaderSize, b.HeaderSize)
if err != nil {
log.Logger(ctx).Error("failed to save block", zap.Any("block", b), zap.Error(err))
_ = cursor.Close()
return err
}
}
return nil
}
func (h *sqlimpl) SaveNode(node *encryption.Node) error {
stmt, er := h.GetStmt("node_insert")
if er != nil {
return er
}
var intLegacy int
if node.Legacy {
intLegacy = 1
}
_, err := stmt.Exec(node.NodeId, intLegacy)
return err
}
func (h *sqlimpl) UpgradeNodeVersion(nodeUuid string) error {
stmt, er := h.GetStmt("node_update")
if er != nil {
return er
}
_, err := stmt.Exec(0, nodeUuid)
return err
}
func (h *sqlimpl) GetNode(nodeUuid string) (*encryption.Node, error) {
stmt, er := h.GetStmt("node_select")
if er != nil {
return nil, er
}
rows, err := stmt.Query(nodeUuid)
if err != nil {
return nil, err
}
defer rows.Close()
if rows.Next() {
node := new(encryption.Node)
var intLegacy int
err = rows.Scan(&node.NodeId, &intLegacy)
node.Legacy = intLegacy == 1
return node, err
}
return nil, errors.NotFound("node.key.dao", "no entry for %s key", nodeUuid)
}
func (h *sqlimpl) DeleteNode(nodeUuid string) error {
stmt, er := h.GetStmt("node_delete")
if er != nil {
return er
}
_, err := stmt.Exec(nodeUuid)
return err
}
func (h *sqlimpl) SaveNodeKey(key *encryption.NodeKey) error {
stmt, er := h.GetStmt("node_key_insert")
if er != nil {
return er
}
_, err := stmt.Exec(key.NodeId, key.OwnerId, key.UserId, key.KeyData)
return err
}
func (h *sqlimpl) GetNodeKey(nodeUuid string, user string) (*encryption.NodeKey, error) {
stmt, er := h.GetStmt("node_key_select")
if er != nil {
return nil, er
}
rows, err := stmt.Query(nodeUuid, user)
if err != nil {
log.Logger(context.Background()).Error("failed to query node key", zap.Error(err))
return nil, err
}
c := NewDBCursor(rows, scanNodeKey)
defer c.Close()
if !c.HasNext() {
err = errors.NotFound("node.key.dao", "no key found for node %s", nodeUuid)
log.Logger(context.Background()).Error("failed to query node key", zap.Error(err))
return nil, err
}
k, err := c.Next()
if err != nil {
log.Logger(context.Background()).Error("failed to parse node key", zap.Error(err))
return nil, err
}
return k.(*encryption.NodeKey), c.Close()
}
func (h *sqlimpl) DeleteNodeKey(key *encryption.NodeKey) error {
stmt, er := h.GetStmt("node_key_delete")
if er != nil {
return er
}
_, err := stmt.Exec(key.NodeId, key.UserId)
return err
}
func (h *sqlimpl) GetAllNodeKey(nodeUuid string) (QueryResultCursor, error) {
stmt, er := h.GetStmt("node_key_select_all")
if er != nil {
return nil, er
}
rows, err := stmt.Query(nodeUuid)
if err != nil {
return nil, err
}
return NewDBCursor(rows, scanNodeKey), nil
}
// dbRowScanner
type dbRowScanner func(rows *sqldb.Rows) (interface{}, error)
// DBCursor
type DBCursor struct {
err error
scan dbRowScanner
rows *sqldb.Rows
}
func NewDBCursor(rows *sqldb.Rows, scanner dbRowScanner) QueryResultCursor {
return &DBCursor{
scan: scanner,
rows: rows,
}
}
func (c *DBCursor) Close() error {
return c.rows.Close()
}
func (c *DBCursor) HasNext() bool {
return c.rows.Next()
}
func (c *DBCursor) Next() (interface{}, error) {
return c.scan(c.rows)
}
// scanBlock
func scanBlock(rows *sqldb.Rows) (interface{}, error) {
b := new(RangedBlocks)
var nodeId string
err := rows.Scan(&nodeId, &b.PartId, &b.SeqStart, &b.SeqEnd, &b.BlockSize, &b.HeaderSize, &b.OwnerId)
if err != nil {
log.Logger(context.Background()).Error("failed to read node block entry in sql result")
}
return b, err
}
// scanNode
func scanNode(rows *sqldb.Rows) (interface{}, error) {
n := new(encryption.Node)
var legacy int
err := rows.Scan(&n.NodeId, &legacy)
n.Legacy = legacy == 1
return n, err
}
// scanNodeKey
func scanNodeKey(rows *sqldb.Rows) (interface{}, error) {
k := new(encryption.NodeKey)
err := rows.Scan(&k.NodeId, &k.OwnerId, &k.UserId, &k.KeyData)
if err != nil {
log.Logger(context.Background()).Error("failed to read node key entry in sql result")
}
return k, err
}