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// Copyright 2020 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package db
import (
"fmt"
"path/filepath"
"strings"
"time"
"github.com/pkg/errors"
"gorm.io/driver/mysql"
"gorm.io/driver/postgres"
"gorm.io/driver/sqlite"
"gorm.io/driver/sqlserver"
"gorm.io/gorm"
"gorm.io/gorm/logger"
"gorm.io/gorm/schema"
log "unknwon.dev/clog/v2"
"gogs.io/gogs/internal/conf"
"gogs.io/gogs/internal/dbutil"
)
// parsePostgreSQLHostPort parses given input in various forms defined in
// https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
// and returns proper host and port number.
func parsePostgreSQLHostPort(info string) (host, port string) {
host, port = "127.0.0.1", "5432"
if strings.Contains(info, ":") && !strings.HasSuffix(info, "]") {
idx := strings.LastIndex(info, ":")
host = info[:idx]
port = info[idx+1:]
} else if len(info) > 0 {
host = info
}
return host, port
}
func parseMSSQLHostPort(info string) (host, port string) {
host, port = "127.0.0.1", "1433"
if strings.Contains(info, ":") {
host = strings.Split(info, ":")[0]
port = strings.Split(info, ":")[1]
} else if strings.Contains(info, ",") {
host = strings.Split(info, ",")[0]
port = strings.TrimSpace(strings.Split(info, ",")[1])
} else if len(info) > 0 {
host = info
}
return host, port
}
// newDSN takes given database options and returns parsed DSN.
func newDSN(opts conf.DatabaseOpts) (dsn string, err error) {
// In case the database name contains "?" with some parameters
concate := "?"
if strings.Contains(opts.Name, concate) {
concate = "&"
}
switch opts.Type {
case "mysql":
if opts.Host[0] == '/' { // Looks like a unix socket
dsn = fmt.Sprintf("%s:%s@unix(%s)/%s%scharset=utf8mb4&parseTime=true",
opts.User, opts.Password, opts.Host, opts.Name, concate)
} else {
dsn = fmt.Sprintf("%s:%s@tcp(%s)/%s%scharset=utf8mb4&parseTime=true",
opts.User, opts.Password, opts.Host, opts.Name, concate)
}
case "postgres":
host, port := parsePostgreSQLHostPort(opts.Host)
dsn = fmt.Sprintf("user='%s' password='%s' host='%s' port='%s' dbname='%s' sslmode='%s' search_path='%s'",
opts.User, opts.Password, host, port, opts.Name, opts.SSLMode, opts.Schema)
case "mssql":
host, port := parseMSSQLHostPort(opts.Host)
dsn = fmt.Sprintf("server=%s; port=%s; database=%s; user id=%s; password=%s;",
host, port, opts.Name, opts.User, opts.Password)
case "sqlite3", "sqlite":
dsn = "file:" + opts.Path + "?cache=shared&mode=rwc"
default:
return "", errors.Errorf("unrecognized dialect: %s", opts.Type)
}
return dsn, nil
}
func newLogWriter() (logger.Writer, error) {
sec := conf.File.Section("log.gorm")
w, err := log.NewFileWriter(
filepath.Join(conf.Log.RootPath, "gorm.log"),
log.FileRotationConfig{
Rotate: sec.Key("ROTATE").MustBool(true),
Daily: sec.Key("ROTATE_DAILY").MustBool(true),
MaxSize: sec.Key("MAX_SIZE").MustInt64(100) * 1024 * 1024,
MaxDays: sec.Key("MAX_DAYS").MustInt64(3),
},
)
if err != nil {
return nil, errors.Wrap(err, `create "gorm.log"`)
}
return &dbutil.Logger{Writer: w}, nil
}
func openDB(opts conf.DatabaseOpts, cfg *gorm.Config) (*gorm.DB, error) {
dsn, err := newDSN(opts)
if err != nil {
return nil, errors.Wrap(err, "parse DSN")
}
var dialector gorm.Dialector
switch opts.Type {
case "mysql":
dialector = mysql.Open(dsn)
case "postgres":
dialector = postgres.Open(dsn)
case "mssql":
dialector = sqlserver.Open(dsn)
case "sqlite3":
dialector = sqlite.Open(dsn)
case "sqlite":
dialector = sqlite.Open(dsn)
dialector.(*sqlite.Dialector).DriverName = "sqlite"
default:
panic("unreachable")
}
return gorm.Open(dialector, cfg)
}
// Tables is the list of struct-to-table mappings.
//
// NOTE: Lines are sorted in alphabetical order, each letter in its own line.
var Tables = []interface{}{
new(Access), new(AccessToken),
new(LFSObject), new(LoginSource),
}
func Init(w logger.Writer) (*gorm.DB, error) {
level := logger.Info
if conf.IsProdMode() {
level = logger.Warn
}
// NOTE: AutoMigrate does not respect logger passed in gorm.Config.
logger.Default = logger.New(w, logger.Config{
SlowThreshold: 100 * time.Millisecond,
LogLevel: level,
})
db, err := openDB(
conf.Database,
&gorm.Config{
SkipDefaultTransaction: true,
NamingStrategy: schema.NamingStrategy{
SingularTable: true,
},
NowFunc: func() time.Time {
return time.Now().UTC().Truncate(time.Microsecond)
},
},
)
if err != nil {
return nil, errors.Wrap(err, "open database")
}
sqlDB, err := db.DB()
if err != nil {
return nil, errors.Wrap(err, "get underlying *sql.DB")
}
sqlDB.SetMaxOpenConns(conf.Database.MaxOpenConns)
sqlDB.SetMaxIdleConns(conf.Database.MaxIdleConns)
sqlDB.SetConnMaxLifetime(time.Minute)
switch conf.Database.Type {
case "postgres":
conf.UsePostgreSQL = true
case "mysql":
conf.UseMySQL = true
db = db.Set("gorm:table_options", "ENGINE=InnoDB").Session(&gorm.Session{})
case "sqlite3":
conf.UseSQLite3 = true
case "mssql":
conf.UseMSSQL = true
default:
panic("unreachable")
}
// NOTE: GORM has problem detecting existing columns, see https://github.com/gogs/gogs/issues/6091.
// Therefore only use it to create new tables, and do customized migration with future changes.
for _, table := range Tables {
if db.Migrator().HasTable(table) {
continue
}
name := strings.TrimPrefix(fmt.Sprintf("%T", table), "*db.")
err = db.Migrator().AutoMigrate(table)
if err != nil {
return nil, errors.Wrapf(err, "auto migrate %q", name)
}
log.Trace("Auto migrated %q", name)
}
sourceFiles, err := loadLoginSourceFiles(filepath.Join(conf.CustomDir(), "conf", "auth.d"), db.NowFunc)
if err != nil {
return nil, errors.Wrap(err, "load login source files")
}
// Initialize stores, sorted in alphabetical order.
AccessTokens = &accessTokens{DB: db}
LoginSources = &loginSources{DB: db, files: sourceFiles}
LFS = &lfs{DB: db}
Perms = &perms{DB: db}
Repos = &repos{DB: db}
TwoFactors = &twoFactors{DB: db}
Users = &users{DB: db}
return db, nil
}
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