package common import ( "encoding/json" "errors" "io/ioutil" "log" "strconv" "strings" ) // Site holds the basic settings which should be tweaked when setting up a site, we might move them to the settings table at some point var Site = &site{Name: "Magical Fairy Land", Language: "english"} // DbConfig holds the database configuration var DbConfig = &dbConfig{Host: "localhost"} // Config holds the more technical settings var Config = new(config) // Dev holds build flags and other things which should only be modified during developers or to gather additional test data var Dev = new(devConfig) var PluginConfig = map[string]string{} type site struct { ShortName string Name string Email string URL string Host string LocalHost bool // Used internally, do not modify as it will be overwritten Port string PortInt int // Alias for efficiency, do not modify, will be overwritten EnableSsl bool EnableEmails bool HasProxy bool Language string MaxRequestSize int // Alias, do not modify, will be overwritten } type dbConfig struct { // Production database Adapter string Host string Username string Password string Dbname string Port string // Test database. Split this into a separate variable? TestAdapter string TestHost string TestUsername string TestPassword string TestDbname string TestPort string } type config struct { SslPrivkey string SslFullchain string HashAlgo string // Defaults to bcrypt, and in the future, possibly something stronger MaxRequestSizeStr string MaxRequestSize int UserCache string UserCacheCapacity int TopicCache string TopicCacheCapacity int SMTPServer string SMTPUsername string SMTPPassword string SMTPPort string SMTPEnableTLS bool Search string DefaultPath string DefaultGroup int // Should be a setting in the database ActivationGroup int // Should be a setting in the database StaffCSS string // ? - Move this into the settings table? Might be better to implement this as Group CSS DefaultForum int // The forum posts go in by default, this used to be covered by the Uncategorised Forum, but we want to replace it with a more robust solution. Make this a setting? MinifyTemplates bool BuildSlugs bool // TODO: Make this a setting? PrimaryServer bool ServerCount int DisableLiveTopicList bool DisableJSAntispam bool //LooseCSP bool LooseHost bool DisableServerPush bool EnableCDNPush bool Noavatar string // ? - Move this into the settings table? ItemsPerPage int // ? - Move this into the settings table? MaxTopicTitleLength int MaxUsernameLength int ReadTimeout int WriteTimeout int IdleTimeout int } type devConfig struct { DebugMode bool SuperDebug bool TemplateDebug bool Profiling bool TestDB bool NoFsnotify bool // Super Experimental! FullReqLog bool } // configHolder is purely for having a big struct to unmarshal data into type configHolder struct { Site *site Config *config Database *dbConfig Dev *devConfig Plugin map[string]string } func LoadConfig() error { data, err := ioutil.ReadFile("./config/config.json") if err != nil { return err } var config configHolder err = json.Unmarshal(data, &config) if err != nil { return err } Site = config.Site Config = config.Config DbConfig = config.Database Dev = config.Dev PluginConfig = config.Plugin return nil } func ProcessConfig() (err error) { Config.Noavatar = strings.Replace(Config.Noavatar, "{site_url}", Site.URL, -1) guestAvatar = GuestAvatar{buildNoavatar(0, 200), buildNoavatar(0, 48)} Site.Host = Site.URL Site.LocalHost = Site.Host == "localhost" || Site.Host == "127.0.0.1" || Site.Host == "::1" Site.PortInt, err = strconv.Atoi(Site.Port) if err != nil { return errors.New("The port must be a valid integer") } if Site.PortInt != 80 && Site.PortInt != 443 { Site.URL = strings.TrimSuffix(Site.URL, "/") Site.URL = strings.TrimSuffix(Site.URL, "\\") Site.URL = strings.TrimSuffix(Site.URL, ":") Site.URL = Site.URL + ":" + Site.Port } if Config.DefaultPath == "" { Config.DefaultPath = "/topics/" } // TODO: Bump the size of max request size up, if it's too low Config.MaxRequestSize, err = strconv.Atoi(Config.MaxRequestSizeStr) if err != nil { reqSizeStr := Config.MaxRequestSizeStr if len(reqSizeStr) < 3 { return errors.New("Invalid unit for MaxRequestSizeStr") } quantity, err := strconv.Atoi(reqSizeStr[:len(reqSizeStr)-2]) if err != nil { return errors.New("Unable to convert quantity to integer in MaxRequestSizeStr, found " + reqSizeStr[:len(reqSizeStr)-2]) } unit := reqSizeStr[len(reqSizeStr)-2:] // TODO: Make it a named error just in case new errors are added in here in the future Config.MaxRequestSize, err = FriendlyUnitToBytes(quantity, unit) if err != nil { return errors.New("Unable to recognise unit for MaxRequestSizeStr, found " + unit) } } if Dev.DebugMode { log.Print("Set MaxRequestSize to ", Config.MaxRequestSize) } if Config.MaxRequestSize <= 0 { log.Fatal("MaxRequestSize should not be zero or below") } Site.MaxRequestSize = Config.MaxRequestSize // ? Find a way of making these unlimited if zero? It might rule out some optimisations, waste memory, and break layouts if Config.MaxTopicTitleLength == 0 { Config.MaxTopicTitleLength = 100 } if Config.MaxUsernameLength == 0 { Config.MaxUsernameLength = 100 } GuestUser.Avatar, GuestUser.MicroAvatar = BuildAvatar(0, "") if Config.HashAlgo != "" { // TODO: Set the alternate hash algo, e.g. argon2 } // We need this in here rather than verifyConfig as switchToTestDB() currently overwrites the values it verifies if DbConfig.TestDbname == DbConfig.Dbname { return errors.New("Your test database can't have the same name as your production database") } if Dev.TestDB { SwitchToTestDB() } return nil } func VerifyConfig() error { if !Forums.Exists(Config.DefaultForum) { return errors.New("Invalid default forum") } if Config.ServerCount < 1 { return errors.New("You can't have less than one server") } if Config.MaxTopicTitleLength > 100 { return errors.New("The max topic title length cannot be over 100 as that's unable to fit in the database row") } if Config.MaxUsernameLength > 100 { return errors.New("The max username length cannot be over 100 as that's unable to fit in the database row") } return nil } func SwitchToTestDB() { DbConfig.Host = DbConfig.TestHost DbConfig.Username = DbConfig.TestUsername DbConfig.Password = DbConfig.TestPassword DbConfig.Dbname = DbConfig.TestDbname DbConfig.Port = DbConfig.TestPort }