init

internal/config/config.go

@@ -0,0 +1,70 @@
+package config
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Access struct {
+	User string `yaml:"user"`
+	Mode string `yaml:"mode"` // "read-only" or "read-write"
+}
+
+type Calendar struct {
+	ID     string   `yaml:"id"`
+	Owner  string   `yaml:"owner"`
+	Access []Access `yaml:"access,omitempty"`
+}
+
+type User struct {
+	Name        string `yaml:"name"`
+	Password    string `yaml:"password"`
+	PasswordCmd string `yaml:"password_cmd"`
+}
+
+type DatabaseConfig struct {
+	URL string `yaml:"url"`
+}
+
+type ServerConfig struct {
+	BindAddress string `yaml:"bind_address"`
+	PublicURL   string `yaml:"public_url"`
+	Redaction   string `yaml:"redaction_text"`
+}
+
+type Config struct {
+	Server    ServerConfig   `yaml:"server"`
+	Database  DatabaseConfig `yaml:"database"`
+	Users     []User         `yaml:"users"`
+	Calendars []Calendar     `yaml:"calendars"`
+}
+
+func Load(path string) (*Config, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	var cfg Config
+	err = yaml.NewDecoder(f).Decode(&cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg.setDefaults()
+	return &cfg, nil
+}
+
+func (c *Config) setDefaults() {
+	if c.Server.BindAddress == "" {
+		c.Server.BindAddress = ":8080"
+	}
+	if c.Server.Redaction == "" {
+		c.Server.Redaction = "Busy"
+	}
+	if c.Database.URL == "" {
+		c.Database.URL = "postgres://nxcaldav@localhost:5432/nxcaldav?sslmode=disable"
+	}
+}