feat: Waku v2 bridge

Issue #12610

vendor/github.com/status-im/migrate/v4/database/sqlcipher/sqlcipher.go

@@ -0,0 +1,215 @@
+package sqlcipher
+
+import (
+	"database/sql"
+	"fmt"
+	"io"
+	"io/ioutil"
+	nurl "net/url"
+	"strings"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database"
+	_ "github.com/mutecomm/go-sqlcipher/v4"
+)
+
+func init() {
+	database.Register("sqlite3", &Sqlite{})
+}
+
+var DefaultMigrationsTable = "schema_migrations"
+var (
+	ErrDatabaseDirty  = fmt.Errorf("database is dirty")
+	ErrNilConfig      = fmt.Errorf("no config")
+	ErrNoDatabaseName = fmt.Errorf("no database name")
+)
+
+type Config struct {
+	MigrationsTable string
+	DatabaseName    string
+}
+
+type Sqlite struct {
+	db       *sql.DB
+	isLocked bool
+
+	config *Config
+}
+
+func WithInstance(instance *sql.DB, config *Config) (database.Driver, error) {
+	if config == nil {
+		return nil, ErrNilConfig
+	}
+
+	if err := instance.Ping(); err != nil {
+		return nil, err
+	}
+	if len(config.MigrationsTable) == 0 {
+		config.MigrationsTable = DefaultMigrationsTable
+	}
+
+	mx := &Sqlite{
+		db:     instance,
+		config: config,
+	}
+	if err := mx.ensureVersionTable(); err != nil {
+		return nil, err
+	}
+	return mx, nil
+}
+
+func (m *Sqlite) ensureVersionTable() error {
+
+	query := fmt.Sprintf(`
+	CREATE TABLE IF NOT EXISTS %s (version uint64,dirty bool);
+  CREATE UNIQUE INDEX IF NOT EXISTS version_unique ON %s (version);
+  `, m.config.MigrationsTable, m.config.MigrationsTable)
+
+	if _, err := m.db.Exec(query); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (m *Sqlite) Open(url string) (database.Driver, error) {
+	purl, err := nurl.Parse(url)
+	if err != nil {
+		return nil, err
+	}
+	dbfile := strings.Replace(migrate.FilterCustomQuery(purl).String(), "sqlite3://", "", 1)
+	db, err := sql.Open("sqlite3", dbfile)
+	if err != nil {
+		return nil, err
+	}
+
+	migrationsTable := purl.Query().Get("x-migrations-table")
+	if len(migrationsTable) == 0 {
+		migrationsTable = DefaultMigrationsTable
+	}
+	mx, err := WithInstance(db, &Config{
+		DatabaseName:    purl.Path,
+		MigrationsTable: migrationsTable,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return mx, nil
+}
+
+func (m *Sqlite) Close() error {
+	return m.db.Close()
+}
+
+func (m *Sqlite) Drop() error {
+	query := `SELECT name FROM sqlite_master WHERE type = 'table';`
+	tables, err := m.db.Query(query)
+	if err != nil {
+		return &database.Error{OrigErr: err, Query: []byte(query)}
+	}
+	defer tables.Close()
+	tableNames := make([]string, 0)
+	for tables.Next() {
+		var tableName string
+		if err := tables.Scan(&tableName); err != nil {
+			return err
+		}
+		if len(tableName) > 0 {
+			tableNames = append(tableNames, tableName)
+		}
+	}
+	if len(tableNames) > 0 {
+		for _, t := range tableNames {
+			query := "DROP TABLE " + t
+			err = m.executeQuery(query)
+			if err != nil {
+				return &database.Error{OrigErr: err, Query: []byte(query)}
+			}
+		}
+		if err := m.ensureVersionTable(); err != nil {
+			return err
+		}
+		query := "VACUUM"
+		_, err = m.db.Query(query)
+		if err != nil {
+			return &database.Error{OrigErr: err, Query: []byte(query)}
+		}
+	}
+
+	return nil
+}
+
+func (m *Sqlite) Lock() error {
+	if m.isLocked {
+		return database.ErrLocked
+	}
+	m.isLocked = true
+	return nil
+}
+
+func (m *Sqlite) Unlock() error {
+	if !m.isLocked {
+		return nil
+	}
+	m.isLocked = false
+	return nil
+}
+
+func (m *Sqlite) Run(migration io.Reader) error {
+	migr, err := ioutil.ReadAll(migration)
+	if err != nil {
+		return err
+	}
+	query := string(migr[:])
+
+	return m.executeQuery(query)
+}
+
+func (m *Sqlite) executeQuery(query string) error {
+	tx, err := m.db.Begin()
+	if err != nil {
+		return &database.Error{OrigErr: err, Err: "transaction start failed"}
+	}
+	if _, err := tx.Exec(query); err != nil {
+		tx.Rollback()
+		return &database.Error{OrigErr: err, Query: []byte(query)}
+	}
+	if err := tx.Commit(); err != nil {
+		return &database.Error{OrigErr: err, Err: "transaction commit failed"}
+	}
+	return nil
+}
+
+func (m *Sqlite) SetVersion(version int, dirty bool) error {
+	tx, err := m.db.Begin()
+	if err != nil {
+		return &database.Error{OrigErr: err, Err: "transaction start failed"}
+	}
+
+	query := "DELETE FROM " + m.config.MigrationsTable
+	if _, err := tx.Exec(query); err != nil {
+		return &database.Error{OrigErr: err, Query: []byte(query)}
+	}
+
+	if version >= 0 {
+		query := fmt.Sprintf(`INSERT INTO %s (version, dirty) VALUES (%d, '%t')`, m.config.MigrationsTable, version, dirty)
+		if _, err := tx.Exec(query); err != nil {
+			tx.Rollback()
+			return &database.Error{OrigErr: err, Query: []byte(query)}
+		}
+	}
+
+	if err := tx.Commit(); err != nil {
+		return &database.Error{OrigErr: err, Err: "transaction commit failed"}
+	}
+
+	return nil
+}
+
+func (m *Sqlite) Version() (version int, dirty bool, err error) {
+	query := "SELECT version, dirty FROM " + m.config.MigrationsTable + " LIMIT 1"
+	err = m.db.QueryRow(query).Scan(&version, &dirty)
+	if err != nil {
+		return database.NilVersion, false, nil
+	}
+	return version, dirty, nil
+}