Start web interface framework

web/config.go

@@ -0,0 +1,77 @@
+// 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 web
+
+import (
+	"crypto/tls"
+	"errors"
+	"io/ioutil"
+	"log"
+
+	"github.com/DanielOaks/oragono/irc"
+
+	"gopkg.in/yaml.v2"
+)
+
+// 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
+}
+
+type Config struct {
+	Host             string
+	Listen           string
+	TLSListenersConf map[string]*TLSListenConfig `yaml:"tls-listeners"`
+	Log              string
+}
+
+func (conf *Config) TLSListeners() map[string]*tls.Config {
+	tlsListeners := make(map[string]*tls.Config)
+	for s, tlsListenersConf := range conf.TLSListenersConf {
+		config, err := tlsListenersConf.Config()
+		if err != nil {
+			log.Fatal(err)
+		}
+		name, err := irc.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
+	}
+
+	if config.Listen == "" {
+		return nil, errors.New("Listening address missing")
+	}
+
+	return config, nil
+}