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database.go
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database.go
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package multiaccounts
import (
"context"
"database/sql"
"github.com/ethereum/go-ethereum/log"
"github.com/status-im/status-go/images"
"github.com/status-im/status-go/multiaccounts/migrations"
"github.com/status-im/status-go/sqlite"
)
// Account stores public information about account.
type Account struct {
Name string `json:"name"`
Timestamp int64 `json:"timestamp"`
Identicon string `json:"identicon"`
KeycardPairing string `json:"keycard-pairing"`
KeyUID string `json:"key-uid"`
Images []images.IdentityImage `json:"images"`
}
type MultiAccountMarshaller interface {
ToMultiAccount() *Account
}
type Database struct {
db *sql.DB
identityImageSubscriptions []chan struct{}
}
// InitializeDB creates db file at a given path and applies migrations.
func InitializeDB(path string) (*Database, error) {
db, err := sqlite.OpenUnecryptedDB(path)
if err != nil {
return nil, err
}
err = migrations.Migrate(db)
if err != nil {
return nil, err
}
return &Database{db: db}, nil
}
func (db *Database) Close() error {
return db.db.Close()
}
func (db *Database) GetAccounts() (rst []Account, err error) {
rows, err := db.db.Query("SELECT a.name, a.loginTimestamp, a.identicon, a.keycardPairing, a.keyUid, ii.name, ii.image_payload, ii.width, ii.height, ii.file_size, ii.resize_target FROM accounts AS a LEFT JOIN identity_images AS ii ON ii.key_uid = a.keyUid ORDER BY loginTimestamp DESC")
if err != nil {
return nil, err
}
defer func() {
err = rows.Close()
}()
for rows.Next() {
acc := Account{}
accLoginTimestamp := sql.NullInt64{}
accIdenticon := sql.NullString{}
ii := &images.IdentityImage{}
iiName := sql.NullString{}
iiWidth := sql.NullInt64{}
iiHeight := sql.NullInt64{}
iiFileSize := sql.NullInt64{}
iiResizeTarget := sql.NullInt64{}
err = rows.Scan(
&acc.Name,
&accLoginTimestamp,
&accIdenticon,
&acc.KeycardPairing,
&acc.KeyUID,
&iiName,
&ii.Payload,
&iiWidth,
&iiHeight,
&iiFileSize,
&iiResizeTarget,
)
if err != nil {
return nil, err
}
acc.Timestamp = accLoginTimestamp.Int64
acc.Identicon = accIdenticon.String
ii.KeyUID = acc.KeyUID
ii.Name = iiName.String
ii.Width = int(iiWidth.Int64)
ii.Height = int(iiHeight.Int64)
ii.FileSize = int(iiFileSize.Int64)
ii.ResizeTarget = int(iiResizeTarget.Int64)
if ii.Name == "" && len(ii.Payload) == 0 && ii.Width == 0 && ii.Height == 0 && ii.FileSize == 0 && ii.ResizeTarget == 0 {
ii = nil
}
// Last index
li := len(rst) - 1
// Don't process nil identity images
if ii != nil {
// attach the identity image to a previously created account if present, check keyUID matches
if len(rst) > 0 && rst[li].KeyUID == acc.KeyUID {
rst[li].Images = append(rst[li].Images, *ii)
// else attach the identity image to the newly created account
} else {
acc.Images = append(acc.Images, *ii)
}
}
// Append newly created account only if this is the first loop or the keyUID doesn't match
if len(rst) == 0 || rst[li].KeyUID != acc.KeyUID {
rst = append(rst, acc)
}
}
return rst, nil
}
func (db *Database) SaveAccount(account Account) error {
_, err := db.db.Exec("INSERT OR REPLACE INTO accounts (name, identicon, keycardPairing, keyUid) VALUES (?, ?, ?, ?)", account.Name, account.Identicon, account.KeycardPairing, account.KeyUID)
return err
}
func (db *Database) UpdateAccount(account Account) error {
_, err := db.db.Exec("UPDATE accounts SET name = ?, identicon = ?, keycardPairing = ? WHERE keyUid = ?", account.Name, account.Identicon, account.KeycardPairing, account.KeyUID)
return err
}
func (db *Database) UpdateAccountKeycardPairing(account Account) error {
_, err := db.db.Exec("UPDATE accounts SET keycardPairing = ? WHERE keyUid = ?", account.KeycardPairing, account.KeyUID)
return err
}
func (db *Database) UpdateAccountTimestamp(keyUID string, loginTimestamp int64) error {
_, err := db.db.Exec("UPDATE accounts SET loginTimestamp = ? WHERE keyUid = ?", loginTimestamp, keyUID)
return err
}
func (db *Database) DeleteAccount(keyUID string) error {
_, err := db.db.Exec("DELETE FROM accounts WHERE keyUid = ?", keyUID)
return err
}
// Account images
func (db *Database) GetIdentityImages(keyUID string) (iis []*images.IdentityImage, err error) {
rows, err := db.db.Query(`SELECT key_uid, name, image_payload, width, height, file_size, resize_target FROM identity_images WHERE key_uid = ?`, keyUID)
if err != nil {
return nil, err
}
defer func() {
err = rows.Close()
}()
for rows.Next() {
ii := &images.IdentityImage{}
err = rows.Scan(&ii.KeyUID, &ii.Name, &ii.Payload, &ii.Width, &ii.Height, &ii.FileSize, &ii.ResizeTarget)
if err != nil {
return nil, err
}
iis = append(iis, ii)
}
return iis, nil
}
func (db *Database) GetIdentityImage(keyUID, it string) (*images.IdentityImage, error) {
var ii images.IdentityImage
err := db.db.QueryRow("SELECT key_uid, name, image_payload, width, height, file_size, resize_target FROM identity_images WHERE key_uid = ? AND name = ?", keyUID, it).Scan(&ii.KeyUID, &ii.Name, &ii.Payload, &ii.Width, &ii.Height, &ii.FileSize, &ii.ResizeTarget)
if err == sql.ErrNoRows {
return nil, nil
} else if err != nil {
return nil, err
}
return &ii, nil
}
func (db *Database) StoreIdentityImages(keyUID string, iis []*images.IdentityImage) (err error) {
// Because SQL INSERTs are triggered in a loop use a tx to ensure a single call to the DB.
tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
if err != nil {
return err
}
defer func() {
if err == nil {
err = tx.Commit()
return
}
// don't shadow original error
_ = tx.Rollback()
}()
for _, ii := range iis {
if ii == nil {
continue
}
ii.KeyUID = keyUID
_, err := tx.Exec(
"INSERT INTO identity_images (key_uid, name, image_payload, width, height, file_size, resize_target) VALUES (?, ?, ?, ?, ?, ?, ?)",
ii.KeyUID,
ii.Name,
ii.Payload,
ii.Width,
ii.Height,
ii.FileSize,
ii.ResizeTarget,
)
if err != nil {
return err
}
}
db.publishOnIdentityImageSubscriptions()
return nil
}
func (db *Database) SubscribeToIdentityImageChanges() chan struct{} {
s := make(chan struct{}, 100)
db.identityImageSubscriptions = append(db.identityImageSubscriptions, s)
return s
}
func (db *Database) publishOnIdentityImageSubscriptions() {
// Publish on channels, drop if buffer is full
for _, s := range db.identityImageSubscriptions {
select {
case s <- struct{}{}:
default:
log.Warn("subscription channel full, dropping message")
}
}
}
func (db *Database) DeleteIdentityImage(keyUID string) error {
_, err := db.db.Exec(`DELETE FROM identity_images WHERE key_uid = ?`, keyUID)
return err
}