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sqlite.go
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sqlite.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package sqlite
import (
"context"
"database/sql"
"strings"
"github.com/cloudflare/cfssl/log"
"github.com/hyperledger/fabric-ca/lib/server/db"
"github.com/jmoiron/sqlx"
"github.com/pkg/errors"
)
//go:generate counterfeiter -o mocks/create.go -fake-name Create . Create
// Create is interface that defines functions need to create database transaction
type Create interface {
Exec(funcName, query string, args ...interface{}) (sql.Result, error)
Rebind(query string) string
Rollback(funcName string) error
Commit(funcName string) error
}
// Sqlite defines SQLite database
type Sqlite struct {
SqlxDB db.FabricCADB
CreateTx Create
CAName string
Metrics *db.Metrics
datasource string
}
// NewDB creates a SQLite database
func NewDB(datasource, caName string, metrics *db.Metrics) *Sqlite {
log.Debugf("Using sqlite database, connect to database in home (%s) directory", datasource)
return &Sqlite{
datasource: datasource,
CAName: caName,
Metrics: metrics,
}
}
// Connect connects to a SQLite database
func (s *Sqlite) Connect() error {
var err error
log.Debugf("Creating SQLite database (%s) if it does not exist...", s.datasource)
sqlxDB, err := sqlx.Connect("sqlite3", s.datasource+"?_busy_timeout=5000")
if err != nil {
return errors.Wrap(err, "Failed to open sqlite3 DB")
}
s.SqlxDB = db.New(sqlxDB, s.CAName, s.Metrics)
return nil
}
// PingContext pings the database
func (s *Sqlite) PingContext(ctx context.Context) error {
err := s.SqlxDB.PingContext(ctx)
if err != nil {
return errors.Wrap(err, "Failed to ping to SQLite database")
}
return nil
}
// Create creates database and tables
func (s *Sqlite) Create() (*db.DB, error) {
s.CreateTx = s.SqlxDB.BeginTx()
err := s.CreateTables()
if err != nil {
return nil, err
}
return s.SqlxDB.(*db.DB), nil
}
// CreateTables creates table
func (s *Sqlite) CreateTables() error {
err := s.doTransaction("CreateTable", createAllSQLiteTables)
if err != nil {
return err
}
// Set maximum open connections to one. This is to share one connection
// across multiple go routines. This will serialize database operations
// with in a single server there by preventing "database is locked"
// error under load. The "Database is locked" error is still expected
// when multiple servers are accessing the same database (but mitigated
// by specifying _busy_timeout to 5 seconds). Since sqlite is
// for development and test purposes only, and is not recommended to
// be used in a clustered topology, setting max open connections to
// 1 is a quick and effective solution
// For more info refer to https://github.com/mattn/go-sqlite3/issues/274
log.Debug("Successfully opened sqlite3 DB")
s.SqlxDB.SetMaxOpenConns(1)
return nil
}
func createAllSQLiteTables(tx Create, args ...interface{}) error {
err := createIdentityTable(tx)
if err != nil {
return err
}
err = createAffiliationTable(tx)
if err != nil {
return err
}
err = createCertificateTable(tx)
if err != nil {
return err
}
err = createCredentialsTable(tx)
if err != nil {
return err
}
err = createRevocationComponentTable(tx)
if err != nil {
return err
}
err = createNoncesTable(tx)
if err != nil {
return err
}
err = createPropertiesTable(tx)
if err != nil {
return err
}
return nil
}
func createIdentityTable(tx Create) error {
log.Debug("Creating users table if it does not exist")
if _, err := tx.Exec("CreateUsersTable", "CREATE TABLE IF NOT EXISTS users (id VARCHAR(255), token bytea, type VARCHAR(256), affiliation VARCHAR(1024), attributes TEXT, state INTEGER, max_enrollments INTEGER, level INTEGER DEFAULT 0, incorrect_password_attempts INTEGER DEFAULT 0)"); err != nil {
return errors.Wrap(err, "Error creating users table")
}
return nil
}
func createAffiliationTable(tx Create) error {
log.Debug("Creating affiliations table if it does not exist")
if _, err := tx.Exec("CreateAffiliationsTable", "CREATE TABLE IF NOT EXISTS affiliations (name VARCHAR(1024) NOT NULL UNIQUE, prekey VARCHAR(1024), level INTEGER DEFAULT 0)"); err != nil {
return errors.Wrap(err, "Error creating affiliations table")
}
return nil
}
func createCertificateTable(tx Create) error {
log.Debug("Creating certificates table if it does not exist")
if _, err := tx.Exec("CreateCertificatesTable", "CREATE TABLE IF NOT EXISTS certificates (id VARCHAR(255), serial_number blob NOT NULL, authority_key_identifier blob NOT NULL, ca_label blob, status blob NOT NULL, reason int, expiry timestamp, revoked_at timestamp, pem blob NOT NULL, level INTEGER DEFAULT 0, PRIMARY KEY(serial_number, authority_key_identifier))"); err != nil {
return errors.Wrap(err, "Error creating certificates table")
}
return nil
}
func createCredentialsTable(tx Create) error {
log.Debug("Creating credentials table if it does not exist")
if _, err := tx.Exec("CreateCredentialsTable", "CREATE TABLE IF NOT EXISTS credentials (id VARCHAR(255), revocation_handle blob NOT NULL, cred blob NOT NULL, ca_label blob, status blob NOT NULL, reason int, expiry timestamp, revoked_at timestamp, level INTEGER DEFAULT 0, PRIMARY KEY(revocation_handle))"); err != nil {
return errors.Wrap(err, "Error creating credentials table")
}
return nil
}
func createRevocationComponentTable(tx Create) error {
log.Debug("Creating revocation_authority_info table if it does not exist")
if _, err := tx.Exec("CreateRevocationAuthorityTable", "CREATE TABLE IF NOT EXISTS revocation_authority_info (epoch INTEGER, next_handle INTEGER, lasthandle_in_pool INTEGER, level INTEGER DEFAULT 0, PRIMARY KEY(epoch))"); err != nil {
return errors.Wrap(err, "Error creating revocation_authority_info table")
}
return nil
}
func createNoncesTable(tx Create) error {
log.Debug("Creating nonces table if it does not exist")
if _, err := tx.Exec("CreateNoncesTable", "CREATE TABLE IF NOT EXISTS nonces (val VARCHAR(1024) NOT NULL UNIQUE, expiry timestamp, level INTEGER DEFAULT 0, PRIMARY KEY(val))"); err != nil {
return errors.Wrap(err, "Error creating nonces table")
}
return nil
}
func createPropertiesTable(tx Create) error {
log.Debug("Creating properties table if it does not exist")
_, err := tx.Exec("CreatePropertiesTable", "CREATE TABLE IF NOT EXISTS properties (property VARCHAR(255), value VARCHAR(256), PRIMARY KEY(property))")
if err != nil {
return errors.Wrap(err, "Error creating properties table")
}
_, err = tx.Exec("CreatePropertiesTable", tx.Rebind("INSERT INTO properties (property, value) VALUES ('identity.level', '0'), ('affiliation.level', '0'), ('certificate.level', '0'), ('credential.level', '0'), ('rcinfo.level', '0'), ('nonce.level', '0')"))
if err != nil {
if !strings.Contains(err.Error(), "UNIQUE constraint failed") {
return errors.Wrap(err, "Failed to initialize properties table")
}
}
return nil
}
func (s *Sqlite) doTransaction(funcName string, doit func(tx Create, args ...interface{}) error, args ...interface{}) error {
tx := s.CreateTx
err := doit(tx, args...)
if err != nil {
err2 := tx.Rollback(funcName)
if err2 != nil {
log.Errorf("Error encountered while rolling back transaction: %s", err2)
return err
}
return err
}
err = tx.Commit(funcName)
if err != nil {
return errors.Wrap(err, "Error encountered while committing transaction")
}
return nil
}