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gitea/modules/setting/database.go
zeripath fcabbae168
Set utf8mb4 as the default charset on MySQL if CHARSET is unset (#12563)
MySQL in its infinite wisdom determines that UTF8 does not
mean UTF8. Our install scripts know about this and will set
CHARSET to utf8mb4 if we users choose this but... users who
do not explicitly set this variable will default to utf8mb3
without knowing it.

This PR changes the unset CHARSET value to utf8mb4 if users
choose to use mysql.

Signed-off-by: Andrew Thornton <art27@cantab.net>
2020-08-22 13:56:33 +01:00

179 lines
5.9 KiB
Go

// 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
}