gogs/modules/base/conf.go

// Copyright 2014 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 base

import (
	"fmt"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"strings"

	"github.com/Unknwon/com"
	"github.com/Unknwon/goconfig"

	"github.com/gogits/gogs/modules/log"
)

// Mailer represents a mail service.
type Mailer struct {
	Name         string
	Host         string
	User, Passwd string
}

var (
	AppVer      string
	AppName     string
	Domain      string
	Cfg         *goconfig.ConfigFile
	MailService *Mailer
)

func exeDir() (string, error) {
	file, err := exec.LookPath(os.Args[0])
	if err != nil {
		return "", err
	}
	p, err := filepath.Abs(file)
	if err != nil {
		return "", err
	}
	return path.Dir(p), nil
}

var logLevels = map[string]string{
	"Trace":    "0",
	"Debug":    "1",
	"Info":     "2",
	"Warn":     "3",
	"Error":    "4",
	"Critical": "5",
}

func newLogService() {
	// Get and check log mode.
	mode := Cfg.MustValue("log", "MODE", "console")
	modeSec := "log." + mode
	if _, err := Cfg.GetSection(modeSec); err != nil {
		fmt.Printf("Unknown log mode: %s\n", mode)
		os.Exit(2)
	}

	// Log level.
	levelName := Cfg.MustValue("log."+mode, "LEVEL", "Trace")
	level, ok := logLevels[levelName]
	if !ok {
		fmt.Printf("Unknown log level: %s\n", levelName)
		os.Exit(2)
	}

	// Generate log configuration.
	var config string
	switch mode {
	case "console":
		config = fmt.Sprintf(`{"level":%s}`, level)
	case "file":
		config = fmt.Sprintf(
			`{"level":%s,"filename":%s,"rotate":%v,"maxlines":%d,"maxsize",%d,"daily":%v,"maxdays":%d}`, level,
			Cfg.MustValue(modeSec, "FILE_NAME", "log/gogs.log"),
			Cfg.MustBool(modeSec, "LOG_ROTATE", true),
			Cfg.MustInt(modeSec, "MAX_LINES", 1000000),
			1<<uint(Cfg.MustInt(modeSec, "MAX_SIZE_SHIFT", 28)),
			Cfg.MustBool(modeSec, "DAILY_ROTATE", true),
			Cfg.MustInt(modeSec, "MAX_DAYS", 7))
	case "conn":
		config = fmt.Sprintf(`{"level":%s,"reconnectOnMsg":%v,"reconnect":%v,"net":%s,"addr":%s}`, level,
			Cfg.MustBool(modeSec, "RECONNECT_ON_MSG", false),
			Cfg.MustBool(modeSec, "RECONNECT", false),
			Cfg.MustValue(modeSec, "PROTOCOL", "tcp"),
			Cfg.MustValue(modeSec, "ADDR", ":7020"))
	case "smtp":
		config = fmt.Sprintf(`{"level":%s,"username":%s,"password":%s,"host":%s,"sendTos":%s,"subject":%s}`, level,
			Cfg.MustValue(modeSec, "USER", "example@example.com"),
			Cfg.MustValue(modeSec, "PASSWD", "******"),
			Cfg.MustValue(modeSec, "HOST", "127.0.0.1:25"),
			Cfg.MustValue(modeSec, "RECEIVERS", "[]"),
			Cfg.MustValue(modeSec, "SUBJECT", "Diagnostic message from serve"))
	}

	log.NewLogger(Cfg.MustInt64("log", "BUFFER_LEN", 10000), mode, config)
	log.Info("Log Mode: %s(%s)", strings.Title(mode), levelName)
}

func newMailService() {
	// Check mailer setting.
	if Cfg.MustBool("mailer", "ENABLED") {
		MailService = &Mailer{
			Name:   Cfg.MustValue("mailer", "NAME", AppName),
			Host:   Cfg.MustValue("mailer", "HOST", "127.0.0.1:25"),
			User:   Cfg.MustValue("mailer", "USER", "example@example.com"),
			Passwd: Cfg.MustValue("mailer", "PASSWD", "******"),
		}
		log.Info("Mail Service Enabled")
	}
}

func init() {
	var err error
	workDir, err := exeDir()
	if err != nil {
		fmt.Printf("Fail to get work directory: %s\n", err)
		os.Exit(2)
	}

	cfgPath := filepath.Join(workDir, "conf/app.ini")
	Cfg, err = goconfig.LoadConfigFile(cfgPath)
	if err != nil {
		fmt.Printf("Cannot load config file '%s'\n", cfgPath)
		os.Exit(2)
	}
	Cfg.BlockMode = false

	cfgPath = filepath.Join(workDir, "custom/conf/app.ini")
	if com.IsFile(cfgPath) {
		if err = Cfg.AppendFiles(cfgPath); err != nil {
			fmt.Printf("Cannot load config file '%s'\n", cfgPath)
			os.Exit(2)
		}
	}
	Cfg.BlockMode = false

	AppName = Cfg.MustValue("", "APP_NAME", "Gogs: Go Git Service")
	Domain = Cfg.MustValue("server", "DOMAIN")

	// Extensions.
	newLogService()
	newMailService()
}