gosora/common/site.go

236 lines
6.5 KiB
Go

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)
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
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
}
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
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
}