Create basic server

Includes app config and some initialization

config/config.go

@@ -0,0 +1,85 @@
+package config
+
+import (
+	"gopkg.in/ini.v1"
+)
+
+const (
+	configFile = "config.ini"
+)
+
+type (
+	ServerCfg struct {
+		Host string `ini:"host"`
+		Port int    `ini:"port"`
+	}
+
+	DatabaseCfg struct {
+		Type string `ini:"type"`
+		User string `ini:"username"`
+		Pass string `ini:"password"`
+		Host string `ini:"host"`
+		Port int    `ini:"port"`
+	}
+
+	AppCfg struct {
+		MultiUser   bool `ini:"multiuser"`
+		OpenSignups bool `ini:"open_signups"`
+		Federation  bool `ini:"federation"`
+
+		Name string `ini:"site_name"`
+
+		JSDisabled bool `ini:"disable_js"`
+
+		// User registration
+		MinUsernameLen int `ini:"min_username_len"`
+	}
+
+	Config struct {
+		Server   ServerCfg   `ini:"server"`
+		Database DatabaseCfg `ini:"database"`
+		App      AppCfg      `ini:"app"`
+	}
+)
+
+func New() *Config {
+	return &Config{
+		Server: ServerCfg{
+			Host: "http://localhost:8080",
+			Port: 8080,
+		},
+		Database: DatabaseCfg{
+			Type: "mysql",
+			Host: "localhost",
+		},
+		App: AppCfg{
+			Federation:     true,
+			MinUsernameLen: 3,
+		},
+	}
+}
+
+func Load() (*Config, error) {
+	cfg, err := ini.Load(configFile)
+	if err != nil {
+		return nil, err
+	}
+
+	// Parse INI file
+	uc := &Config{}
+	err = cfg.MapTo(uc)
+	if err != nil {
+		return nil, err
+	}
+	return uc, nil
+}
+
+func Save(uc *Config) error {
+	cfg := ini.Empty()
+	err := ini.ReflectFrom(cfg, uc)
+	if err != nil {
+		return err
+	}
+
+	return cfg.SaveTo(configFile)
+}