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config.go
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config.go
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// Copyright (c) 2012-2014 Jeremy Latt
// Copyright (c) 2014-2015 Edmund Huber
// Copyright (c) 2016- Daniel Oaks <daniel@danieloaks.net>
// released under the MIT license
package irc
import (
"crypto/tls"
"errors"
"io/ioutil"
"log"
"gopkg.in/yaml.v2"
)
type PassConfig struct {
Password string
}
// TLSListenConfig defines configuration options for listening on TLS
type TLSListenConfig struct {
Cert string
Key string
}
// Certificate returns the TLS certificate assicated with this TLSListenConfig
func (conf *TLSListenConfig) Config() (*tls.Config, error) {
cert, err := tls.LoadX509KeyPair(conf.Cert, conf.Key)
if err != nil {
return nil, errors.New("tls cert+key: invalid pair")
}
return &tls.Config{
Certificates: []tls.Certificate{cert},
}, err
}
func (conf *PassConfig) PasswordBytes() []byte {
bytes, err := DecodePasswordHash(conf.Password)
if err != nil {
log.Fatal("decode password error: ", err)
}
return bytes
}
type AccountRegistrationConfig struct {
Enabled bool
EnabledCallbacks []string `yaml:"enabled-callbacks"`
Callbacks struct {
Mailto struct {
Server string
Port int
TLS struct {
Enabled bool
InsecureSkipVerify bool `yaml:"insecure_skip_verify"`
ServerName string `yaml:"servername"`
}
Username string
Password string
Sender string
VerifyMessageSubject string `yaml:"verify-message-subject"`
VerifyMessage string `yaml:"verify-message"`
}
}
}
type Config struct {
Network struct {
Name string
}
Server struct {
PassConfig
Password string
Name string
Listen []string
Wslisten string `yaml:"ws-listen"`
TLSListeners map[string]*TLSListenConfig `yaml:"tls-listeners"`
CheckIdent bool `yaml:"check-ident"`
Log string
MOTD string
}
Datastore struct {
Path string
}
Registration struct {
Accounts AccountRegistrationConfig
}
Operator map[string]*PassConfig
Limits struct {
NickLen uint `yaml:"nicklen"`
ChannelLen uint `yaml:"channellen"`
AwayLen uint `yaml:"awaylen"`
KickLen uint `yaml:"kicklen"`
TopicLen uint `yaml:"topiclen"`
WhowasEntries uint `yaml:"whowas-entries"`
MonitorEntries uint `yaml:"monitor-entries"`
}
}
func (conf *Config) Operators() map[string][]byte {
operators := make(map[string][]byte)
for name, opConf := range conf.Operator {
name, err := CasefoldName(name)
if err == nil {
operators[name] = opConf.PasswordBytes()
} else {
log.Println("Could not casefold oper name:", err.Error())
}
}
return operators
}
func (conf *Config) TLSListeners() map[string]*tls.Config {
tlsListeners := make(map[string]*tls.Config)
for s, tlsListenersConf := range conf.Server.TLSListeners {
config, err := tlsListenersConf.Config()
if err != nil {
log.Fatal(err)
}
name, err := CasefoldName(s)
if err == nil {
tlsListeners[name] = config
} else {
log.Println("Could not casefold TLS listener:", err.Error())
}
}
return tlsListeners
}
func LoadConfig(filename string) (config *Config, err error) {
data, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
err = yaml.Unmarshal(data, &config)
if err != nil {
return nil, err
}
// we need this so PasswordBytes returns the correct info
if config.Server.Password != "" {
config.Server.PassConfig.Password = config.Server.Password
}
if config.Network.Name == "" {
return nil, errors.New("Network name missing")
}
if config.Server.Name == "" {
return nil, errors.New("Server name missing")
}
if !IsHostname(config.Server.Name) {
return nil, errors.New("Server name must match the format of a hostname")
}
if config.Datastore.Path == "" {
return nil, errors.New("Datastore path missing")
}
if len(config.Server.Listen) == 0 {
return nil, errors.New("Server listening addresses missing")
}
if config.Limits.NickLen < 1 || config.Limits.ChannelLen < 2 || config.Limits.AwayLen < 1 || config.Limits.KickLen < 1 || config.Limits.TopicLen < 1 {
return nil, errors.New("Limits aren't setup properly, check them and make them sane")
}
return config, nil
}