package settings import ( "crypto/rand" "encoding/base64" "github.com/kirsle/blog/core/jsondb" ) // DB is a reference to the parent app's JsonDB object. var DB *jsondb.DB // Settings holds the global app settings. type Settings struct { // Only gets set to true on save(), this determines whether // the site has ever been configured before. Initialized bool `json:"initialized"` Site struct { Title string `json:"title"` AdminEmail string `json:"adminEmail"` } `json:"site"` // Security-related settings. Security struct { SecretKey string `json:"secretKey"` // Session cookie secret key HashCost int `json:"hashCost"` // Bcrypt hash cost for passwords } `json:"security"` // Redis settings for caching in JsonDB. Redis struct { Enabled bool `json:"enabled"` Host string `json:"host"` Port int `json:"port"` DB int `json:"db"` Prefix string `json:"prefix"` } `json:"redis"` // Mail settings Mail struct{} `json:"mail,omitempty"` } // Defaults returns default settings. The app initially sets this on // startup before reading your site's saved settings (if available). // Also this is used as a template when the user first configures their // site. func Defaults() *Settings { s := &Settings{} s.Site.Title = "Untitled Site" s.Security.HashCost = 14 s.Security.SecretKey = RandomKey() s.Redis.Host = "localhost" s.Redis.Port = 6379 s.Redis.DB = 0 return s } // RandomKey generates a random string to use for the site's secret key. func RandomKey() string { keyLength := 32 b := make([]byte, keyLength) rand.Read(b) return base64.URLEncoding.EncodeToString(b) } // Load the settings. func Load() (*Settings, error) { s := &Settings{} err := DB.Get("app/settings", &s) return s, err } // Save the site settings. func (s *Settings) Save() error { s.Initialized = true err := DB.Commit("app/settings", &s) if err != nil { return err } return nil }