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|
package proxy
import (
"encoding/json"
"log"
"os"
"sync"
)
const (
defaultCmdPrefix = ">"
defaultSendInterval = 0.09
defaultUserLimit = 10
defaultAuthBackend = "files"
defaultTelnetAddr = "[::1]:40010"
defaultBindAddr = ":40000"
defaultListInterval = 300
)
var config Config
var configMu sync.RWMutex
// A Config contains information from the configuration file
// that affects the way the proxy works.
type Config struct {
NoPlugins bool
CmdPrefix string
RequirePasswd bool
SendInterval float32
UserLimit int
AuthBackend string
NoTelnet bool
TelnetAddr string
BindAddr string
Servers []struct {
Name string
Addr string
}
ForceDefaultSrv bool
CSMRF struct {
NoCSMs bool
ChatMsgs bool
ItemDefs bool
NodeDefs bool
NoLimitMapRange bool
PlayerList bool
}
MapRange uint32
DropCSMRF bool
Groups map[string][]string
UserGroups map[string]string
List struct {
Enable bool
Addr string
Interval int
Name string
Desc string
URL string
Creative bool
Dmg bool
PvP bool
Game string
FarNames bool
Mods []string
}
}
// Conf returns a copy of the Config used by the proxy.
// Any modifications will not affect the original Config.
func Conf() Config {
configMu.RLock()
defer configMu.RUnlock()
return config
}
// LoadConfig attempts to parse the configuration file.
// It leaves the config unchanged if there is an error
// and returns the error.
func LoadConfig() error {
configMu.Lock()
defer configMu.Unlock()
oldConf := config
config.CmdPrefix = defaultCmdPrefix
config.SendInterval = defaultSendInterval
config.UserLimit = defaultUserLimit
config.AuthBackend = defaultAuthBackend
config.TelnetAddr = defaultTelnetAddr
config.BindAddr = defaultBindAddr
config.Groups = make(map[string][]string)
config.UserGroups = make(map[string]string)
config.List.Interval = defaultListInterval
f, err := os.OpenFile(Path("config.json"), os.O_RDWR|os.O_CREATE, 0666)
if err != nil {
config = oldConf
return err
}
defer f.Close()
if fi, _ := f.Stat(); fi.Size() == 0 {
f.WriteString("{\n\t\n}\n")
f.Seek(0, os.SEEK_SET)
}
decoder := json.NewDecoder(f)
if err := decoder.Decode(&config); err != nil {
config = oldConf
return err
}
log.Print("load config")
return nil
}
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