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// Copyright 2019 The Gitea 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 setting
import (
"errors"
"fmt"
"net/url"
"os"
"path"
"path/filepath"
"strings"
"time"
)
var (
// SupportedDatabases includes all supported databases type
SupportedDatabases = []string{"MySQL", "PostgreSQL", "MSSQL"}
dbTypes = map[string]string{"MySQL": "mysql", "PostgreSQL": "postgres", "MSSQL": "mssql", "SQLite3": "sqlite3"}
// EnableSQLite3 use SQLite3, set by build flag
EnableSQLite3 bool
// Database holds the database settings
Database = struct {
Type string
Host string
Name string
User string
Passwd string
Schema string
SSLMode string
Path string
LogSQL bool
Charset string
Timeout int // seconds
UseSQLite3 bool
UseMySQL bool
UseMSSQL bool
UsePostgreSQL bool
DBConnectRetries int
DBConnectBackoff time.Duration
MaxIdleConns int
MaxOpenConns int
ConnMaxLifetime time.Duration
IterateBufferSize int
}{
Timeout: 500,
}
)
// GetDBTypeByName returns the database type as it defined on XORM according the given name
func GetDBTypeByName(name string) string {
return dbTypes[name]
}
// InitDBConfig loads the database settings
func InitDBConfig() {
sec := Cfg.Section("database")
Database.Type = sec.Key("DB_TYPE").String()
defaultCharset := "utf8"
switch Database.Type {
case "sqlite3":
Database.UseSQLite3 = true
case "mysql":
Database.UseMySQL = true
defaultCharset = "utf8mb4"
case "postgres":
Database.UsePostgreSQL = true
case "mssql":
Database.UseMSSQL = true
}
Database.Host = sec.Key("HOST").String()
Database.Name = sec.Key("NAME").String()
Database.User = sec.Key("USER").String()
if len(Database.Passwd) == 0 {
Database.Passwd = sec.Key("PASSWD").String()
}
Database.Schema = sec.Key("SCHEMA").String()
Database.SSLMode = sec.Key("SSL_MODE").MustString("disable")
Database.Charset = sec.Key("CHARSET").In(defaultCharset, []string{"utf8", "utf8mb4"})
Database.Path = sec.Key("PATH").MustString(filepath.Join(AppDataPath, "gitea.db"))
Database.Timeout = sec.Key("SQLITE_TIMEOUT").MustInt(500)
Database.MaxIdleConns = sec.Key("MAX_IDLE_CONNS").MustInt(2)
if Database.UseMySQL {
Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(3 * time.Second)
} else {
Database.ConnMaxLifetime = sec.Key("CONN_MAX_LIFE_TIME").MustDuration(0)
}
Database.MaxOpenConns = sec.Key("MAX_OPEN_CONNS").MustInt(0)
Database.IterateBufferSize = sec.Key("ITERATE_BUFFER_SIZE").MustInt(50)
Database.LogSQL = sec.Key("LOG_SQL").MustBool(true)
Database.DBConnectRetries = sec.Key("DB_RETRIES").MustInt(10)
Database.DBConnectBackoff = sec.Key("DB_RETRY_BACKOFF").MustDuration(3 * time.Second)
}
// DBConnStr returns database connection string
func DBConnStr() (string, error) {
connStr := ""
var Param = "?"
if strings.Contains(Database.Name, Param) {
Param = "&"
}
switch Database.Type {
case "mysql":
connType := "tcp"
if len(Database.Host) > 0 && Database.Host[0] == '/' { // looks like a unix socket
connType = "unix"
}
tls := Database.SSLMode
if tls == "disable" { // allow (Postgres-inspired) default value to work in MySQL
tls = "false"
}
connStr = fmt.Sprintf("%s:%s@%s(%s)/%s%scharset=%s&parseTime=true&tls=%s",
Database.User, Database.Passwd, connType, Database.Host, Database.Name, Param, Database.Charset, tls)
case "postgres":
connStr = getPostgreSQLConnectionString(Database.Host, Database.User, Database.Passwd, Database.Name, Param, Database.SSLMode)
case "mssql":
host, port := ParseMSSQLHostPort(Database.Host)
connStr = fmt.Sprintf("server=%s; port=%s; database=%s; user id=%s; password=%s;", host, port, Database.Name, Database.User, Database.Passwd)
case "sqlite3":
if !EnableSQLite3 {
return "", errors.New("this binary version does not build support for SQLite3")
}
if err := os.MkdirAll(path.Dir(Database.Path), os.ModePerm); err != nil {
return "", fmt.Errorf("Failed to create directories: %v", err)
}
connStr = fmt.Sprintf("file:%s?cache=shared&mode=rwc&_busy_timeout=%d&_txlock=immediate", Database.Path, Database.Timeout)
default:
return "", fmt.Errorf("Unknown database type: %s", Database.Type)
}
return connStr, nil
}
// 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) (string, 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 getPostgreSQLConnectionString(dbHost, dbUser, dbPasswd, dbName, dbParam, dbsslMode string) (connStr string) {
host, port := parsePostgreSQLHostPort(dbHost)
if host[0] == '/' { // looks like a unix socket
connStr = fmt.Sprintf("postgres://%s:%s@:%s/%s%ssslmode=%s&host=%s",
url.PathEscape(dbUser), url.PathEscape(dbPasswd), port, dbName, dbParam, dbsslMode, host)
} else {
connStr = fmt.Sprintf("postgres://%s:%s@%s:%s/%s%ssslmode=%s",
url.PathEscape(dbUser), url.PathEscape(dbPasswd), host, port, dbName, dbParam, dbsslMode)
}
return
}
// ParseMSSQLHostPort splits the host into host and port
func ParseMSSQLHostPort(info string) (string, string) {
host, port := "127.0.0.1", "0"
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
}
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