sftpgo-mirror/dataprovider/mysql.go
2021-03-21 19:15:47 +01:00

305 lines
12 KiB
Go

// +build !nomysql
package dataprovider
import (
"context"
"crypto/x509"
"database/sql"
"errors"
"fmt"
"strings"
"time"
// we import go-sql-driver/mysql here to be able to disable MySQL support using a build tag
_ "github.com/go-sql-driver/mysql"
"github.com/drakkan/sftpgo/logger"
"github.com/drakkan/sftpgo/version"
"github.com/drakkan/sftpgo/vfs"
)
const (
mysqlInitialSQL = "CREATE TABLE `{{schema_version}}` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `version` integer NOT NULL);" +
"CREATE TABLE `{{admins}}` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `username` varchar(255) NOT NULL UNIQUE, " +
"`password` varchar(255) NOT NULL, `email` varchar(255) NULL, `status` integer NOT NULL, `permissions` longtext NOT NULL, " +
"`filters` longtext NULL, `additional_info` longtext NULL);" +
"CREATE TABLE `{{folders}}` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `name` varchar(255) NOT NULL UNIQUE, " +
"`path` varchar(512) NULL, `used_quota_size` bigint NOT NULL, `used_quota_files` integer NOT NULL, " +
"`last_quota_update` bigint NOT NULL);" +
"CREATE TABLE `{{users}}` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `status` integer NOT NULL, " +
"`expiration_date` bigint NOT NULL, `username` varchar(255) NOT NULL UNIQUE, `password` longtext NULL, " +
"`public_keys` longtext NULL, `home_dir` varchar(512) NOT NULL, `uid` integer NOT NULL, `gid` integer NOT NULL, " +
"`max_sessions` integer NOT NULL, `quota_size` bigint NOT NULL, `quota_files` integer NOT NULL, " +
"`permissions` longtext NOT NULL, `used_quota_size` bigint NOT NULL, `used_quota_files` integer NOT NULL, " +
"`last_quota_update` bigint NOT NULL, `upload_bandwidth` integer NOT NULL, `download_bandwidth` integer NOT NULL, " +
"`last_login` bigint NOT NULL, `filters` longtext NULL, `filesystem` longtext NULL, `additional_info` longtext NULL);" +
"CREATE TABLE `{{folders_mapping}}` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `virtual_path` varchar(512) NOT NULL, " +
"`quota_size` bigint NOT NULL, `quota_files` integer NOT NULL, `folder_id` integer NOT NULL, `user_id` integer NOT NULL);" +
"ALTER TABLE `{{folders_mapping}}` ADD CONSTRAINT `unique_mapping` UNIQUE (`user_id`, `folder_id`);" +
"ALTER TABLE `{{folders_mapping}}` ADD CONSTRAINT `folders_mapping_folder_id_fk_folders_id` FOREIGN KEY (`folder_id`) REFERENCES `{{folders}}` (`id`) ON DELETE CASCADE;" +
"ALTER TABLE `{{folders_mapping}}` ADD CONSTRAINT `folders_mapping_user_id_fk_users_id` FOREIGN KEY (`user_id`) REFERENCES `{{users}}` (`id`) ON DELETE CASCADE;" +
"INSERT INTO {{schema_version}} (version) VALUES (8);"
mysqlV9SQL = "ALTER TABLE `{{admins}}` ADD COLUMN `description` varchar(512) NULL;" +
"ALTER TABLE `{{folders}}` ADD COLUMN `description` varchar(512) NULL;" +
"ALTER TABLE `{{folders}}` ADD COLUMN `filesystem` longtext NULL;" +
"ALTER TABLE `{{users}}` ADD COLUMN `description` varchar(512) NULL;"
mysqlV9DownSQL = "ALTER TABLE `{{users}}` DROP COLUMN `description`;" +
"ALTER TABLE `{{folders}}` DROP COLUMN `filesystem`;" +
"ALTER TABLE `{{folders}}` DROP COLUMN `description`;" +
"ALTER TABLE `{{admins}}` DROP COLUMN `description`;"
)
// MySQLProvider auth provider for MySQL/MariaDB database
type MySQLProvider struct {
dbHandle *sql.DB
}
func init() {
version.AddFeature("+mysql")
}
func initializeMySQLProvider() error {
var err error
logSender = fmt.Sprintf("dataprovider_%v", MySQLDataProviderName)
dbHandle, err := sql.Open("mysql", getMySQLConnectionString(false))
if err == nil {
providerLog(logger.LevelDebug, "mysql database handle created, connection string: %#v, pool size: %v",
getMySQLConnectionString(true), config.PoolSize)
dbHandle.SetMaxOpenConns(config.PoolSize)
if config.PoolSize > 0 {
dbHandle.SetMaxIdleConns(config.PoolSize)
} else {
dbHandle.SetMaxIdleConns(2)
}
dbHandle.SetConnMaxLifetime(240 * time.Second)
provider = &MySQLProvider{dbHandle: dbHandle}
} else {
providerLog(logger.LevelWarn, "error creating mysql database handler, connection string: %#v, error: %v",
getMySQLConnectionString(true), err)
}
return err
}
func getMySQLConnectionString(redactedPwd bool) string {
var connectionString string
if config.ConnectionString == "" {
password := config.Password
if redactedPwd {
password = "[redacted]"
}
connectionString = fmt.Sprintf("%v:%v@tcp([%v]:%v)/%v?charset=utf8&interpolateParams=true&timeout=10s&tls=%v&writeTimeout=10s&readTimeout=10s",
config.Username, password, config.Host, config.Port, config.Name, getSSLMode())
} else {
connectionString = config.ConnectionString
}
return connectionString
}
func (p *MySQLProvider) checkAvailability() error {
return sqlCommonCheckAvailability(p.dbHandle)
}
func (p *MySQLProvider) validateUserAndPass(username, password, ip, protocol string) (User, error) {
return sqlCommonValidateUserAndPass(username, password, ip, protocol, p.dbHandle)
}
func (p *MySQLProvider) validateUserAndTLSCert(username, protocol string, tlsCert *x509.Certificate) (User, error) {
return sqlCommonValidateUserAndTLSCertificate(username, protocol, tlsCert, p.dbHandle)
}
func (p *MySQLProvider) validateUserAndPubKey(username string, publicKey []byte) (User, string, error) {
return sqlCommonValidateUserAndPubKey(username, publicKey, p.dbHandle)
}
func (p *MySQLProvider) updateQuota(username string, filesAdd int, sizeAdd int64, reset bool) error {
return sqlCommonUpdateQuota(username, filesAdd, sizeAdd, reset, p.dbHandle)
}
func (p *MySQLProvider) getUsedQuota(username string) (int, int64, error) {
return sqlCommonGetUsedQuota(username, p.dbHandle)
}
func (p *MySQLProvider) updateLastLogin(username string) error {
return sqlCommonUpdateLastLogin(username, p.dbHandle)
}
func (p *MySQLProvider) userExists(username string) (User, error) {
return sqlCommonGetUserByUsername(username, p.dbHandle)
}
func (p *MySQLProvider) addUser(user *User) error {
return sqlCommonAddUser(user, p.dbHandle)
}
func (p *MySQLProvider) updateUser(user *User) error {
return sqlCommonUpdateUser(user, p.dbHandle)
}
func (p *MySQLProvider) deleteUser(user *User) error {
return sqlCommonDeleteUser(user, p.dbHandle)
}
func (p *MySQLProvider) dumpUsers() ([]User, error) {
return sqlCommonDumpUsers(p.dbHandle)
}
func (p *MySQLProvider) getUsers(limit int, offset int, order string) ([]User, error) {
return sqlCommonGetUsers(limit, offset, order, p.dbHandle)
}
func (p *MySQLProvider) dumpFolders() ([]vfs.BaseVirtualFolder, error) {
return sqlCommonDumpFolders(p.dbHandle)
}
func (p *MySQLProvider) getFolders(limit, offset int, order string) ([]vfs.BaseVirtualFolder, error) {
return sqlCommonGetFolders(limit, offset, order, p.dbHandle)
}
func (p *MySQLProvider) getFolderByName(name string) (vfs.BaseVirtualFolder, error) {
ctx, cancel := context.WithTimeout(context.Background(), defaultSQLQueryTimeout)
defer cancel()
return sqlCommonGetFolderByName(ctx, name, p.dbHandle)
}
func (p *MySQLProvider) addFolder(folder *vfs.BaseVirtualFolder) error {
return sqlCommonAddFolder(folder, p.dbHandle)
}
func (p *MySQLProvider) updateFolder(folder *vfs.BaseVirtualFolder) error {
return sqlCommonUpdateFolder(folder, p.dbHandle)
}
func (p *MySQLProvider) deleteFolder(folder *vfs.BaseVirtualFolder) error {
return sqlCommonDeleteFolder(folder, p.dbHandle)
}
func (p *MySQLProvider) updateFolderQuota(name string, filesAdd int, sizeAdd int64, reset bool) error {
return sqlCommonUpdateFolderQuota(name, filesAdd, sizeAdd, reset, p.dbHandle)
}
func (p *MySQLProvider) getUsedFolderQuota(name string) (int, int64, error) {
return sqlCommonGetFolderUsedQuota(name, p.dbHandle)
}
func (p *MySQLProvider) adminExists(username string) (Admin, error) {
return sqlCommonGetAdminByUsername(username, p.dbHandle)
}
func (p *MySQLProvider) addAdmin(admin *Admin) error {
return sqlCommonAddAdmin(admin, p.dbHandle)
}
func (p *MySQLProvider) updateAdmin(admin *Admin) error {
return sqlCommonUpdateAdmin(admin, p.dbHandle)
}
func (p *MySQLProvider) deleteAdmin(admin *Admin) error {
return sqlCommonDeleteAdmin(admin, p.dbHandle)
}
func (p *MySQLProvider) getAdmins(limit int, offset int, order string) ([]Admin, error) {
return sqlCommonGetAdmins(limit, offset, order, p.dbHandle)
}
func (p *MySQLProvider) dumpAdmins() ([]Admin, error) {
return sqlCommonDumpAdmins(p.dbHandle)
}
func (p *MySQLProvider) validateAdminAndPass(username, password, ip string) (Admin, error) {
return sqlCommonValidateAdminAndPass(username, password, ip, p.dbHandle)
}
func (p *MySQLProvider) close() error {
return p.dbHandle.Close()
}
func (p *MySQLProvider) reloadConfig() error {
return nil
}
// initializeDatabase creates the initial database structure
func (p *MySQLProvider) initializeDatabase() error {
dbVersion, err := sqlCommonGetDatabaseVersion(p.dbHandle, false)
if err == nil && dbVersion.Version > 0 {
return ErrNoInitRequired
}
initialSQL := strings.ReplaceAll(mysqlInitialSQL, "{{schema_version}}", sqlTableSchemaVersion)
initialSQL = strings.ReplaceAll(initialSQL, "{{admins}}", sqlTableAdmins)
initialSQL = strings.ReplaceAll(initialSQL, "{{folders}}", sqlTableFolders)
initialSQL = strings.ReplaceAll(initialSQL, "{{users}}", sqlTableUsers)
initialSQL = strings.ReplaceAll(initialSQL, "{{folders_mapping}}", sqlTableFoldersMapping)
return sqlCommonExecSQLAndUpdateDBVersion(p.dbHandle, strings.Split(initialSQL, ";"), 8)
}
func (p *MySQLProvider) migrateDatabase() error {
dbVersion, err := sqlCommonGetDatabaseVersion(p.dbHandle, true)
if err != nil {
return err
}
switch version := dbVersion.Version; {
case version == sqlDatabaseVersion:
providerLog(logger.LevelDebug, "sql database is up to date, current version: %v", version)
return ErrNoInitRequired
case version < 8:
err = fmt.Errorf("database version %v is too old, please see the upgrading docs", version)
providerLog(logger.LevelError, "%v", err)
logger.ErrorToConsole("%v", err)
return err
case version == 8:
return updateMySQLDatabaseFromV8(p.dbHandle)
default:
if version > sqlDatabaseVersion {
providerLog(logger.LevelWarn, "database version %v is newer than the supported one: %v", version,
sqlDatabaseVersion)
logger.WarnToConsole("database version %v is newer than the supported one: %v", version,
sqlDatabaseVersion)
return nil
}
return fmt.Errorf("database version not handled: %v", version)
}
}
func (p *MySQLProvider) revertDatabase(targetVersion int) error {
dbVersion, err := sqlCommonGetDatabaseVersion(p.dbHandle, true)
if err != nil {
return err
}
if dbVersion.Version == targetVersion {
return errors.New("current version match target version, nothing to do")
}
switch dbVersion.Version {
case 9:
return downgradeMySQLDatabaseFromV9(p.dbHandle)
default:
return fmt.Errorf("database version not handled: %v", dbVersion.Version)
}
}
func updateMySQLDatabaseFromV8(dbHandle *sql.DB) error {
return updateMySQLDatabaseFrom8To9(dbHandle)
}
func downgradeMySQLDatabaseFromV9(dbHandle *sql.DB) error {
return downgradeMySQLDatabaseFrom9To8(dbHandle)
}
func updateMySQLDatabaseFrom8To9(dbHandle *sql.DB) error {
logger.InfoToConsole("updating database version: 8 -> 9")
providerLog(logger.LevelInfo, "updating database version: 8 -> 9")
sql := strings.ReplaceAll(mysqlV9SQL, "{{users}}", sqlTableUsers)
sql = strings.ReplaceAll(sql, "{{admins}}", sqlTableAdmins)
sql = strings.ReplaceAll(sql, "{{folders}}", sqlTableFolders)
return sqlCommonExecSQLAndUpdateDBVersion(dbHandle, strings.Split(sql, ";"), 9)
}
func downgradeMySQLDatabaseFrom9To8(dbHandle *sql.DB) error {
logger.InfoToConsole("downgrading database version: 9 -> 8")
providerLog(logger.LevelInfo, "downgrading database version: 9 -> 8")
sql := strings.ReplaceAll(mysqlV9DownSQL, "{{users}}", sqlTableUsers)
sql = strings.ReplaceAll(sql, "{{admins}}", sqlTableAdmins)
sql = strings.ReplaceAll(sql, "{{folders}}", sqlTableFolders)
return sqlCommonExecSQLAndUpdateDBVersion(dbHandle, strings.Split(sql, ";"), 8)
}