writefreely/config/config.go

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/*
* Copyright © 2018-2019 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
2018-12-31 07:05:26 +01:00
// Package config holds and assists in the configuration of a writefreely instance.
package config
import (
"gopkg.in/ini.v1"
"strings"
)
const (
// FileName is the default configuration file name
FileName = "config.ini"
UserNormal UserType = "user"
UserAdmin = "admin"
)
type (
UserType string
// ServerCfg holds values that affect how the HTTP server runs
ServerCfg struct {
HiddenHost string `ini:"hidden_host"`
Port int `ini:"port"`
Bind string `ini:"bind"`
TLSCertPath string `ini:"tls_cert_path"`
TLSKeyPath string `ini:"tls_key_path"`
TemplatesParentDir string `ini:"templates_parent_dir"`
StaticParentDir string `ini:"static_parent_dir"`
PagesParentDir string `ini:"pages_parent_dir"`
KeysParentDir string `ini:"keys_parent_dir"`
Dev bool `ini:"-"`
}
// DatabaseCfg holds values that determine how the application connects to a datastore
DatabaseCfg struct {
Type string `ini:"type"`
FileName string `ini:"filename"`
User string `ini:"username"`
Password string `ini:"password"`
Database string `ini:"database"`
Host string `ini:"host"`
Port int `ini:"port"`
}
// AppCfg holds values that affect how the application functions
AppCfg struct {
SiteName string `ini:"site_name"`
SiteDesc string `ini:"site_description"`
Host string `ini:"host"`
// Site appearance
Theme string `ini:"theme"`
JSDisabled bool `ini:"disable_js"`
WebFonts bool `ini:"webfonts"`
Landing string `ini:"landing"`
// Users
SingleUser bool `ini:"single_user"`
OpenRegistration bool `ini:"open_registration"`
MinUsernameLen int `ini:"min_username_len"`
MaxBlogs int `ini:"max_blogs"`
// Federation
Federation bool `ini:"federation"`
PublicStats bool `ini:"public_stats"`
Private bool `ini:"private"`
// Additional functions
LocalTimeline bool `ini:"local_timeline"`
UserInvites string `ini:"user_invites"`
}
// Config holds the complete configuration for running a writefreely instance
Config struct {
Server ServerCfg `ini:"server"`
Database DatabaseCfg `ini:"database"`
App AppCfg `ini:"app"`
}
)
// New creates a new Config with sane defaults
func New() *Config {
c := &Config{
Server: ServerCfg{
Port: 8080,
Bind: "localhost", /* IPV6 support when not using localhost? */
},
App: AppCfg{
Host: "http://localhost:8080",
Theme: "write",
WebFonts: true,
SingleUser: true,
MinUsernameLen: 3,
MaxBlogs: 1,
Federation: true,
PublicStats: true,
},
}
c.UseMySQL(true)
return c
}
// UseMySQL resets the Config's Database to use default values for a MySQL setup.
func (cfg *Config) UseMySQL(fresh bool) {
cfg.Database.Type = "mysql"
if fresh {
cfg.Database.Host = "localhost"
cfg.Database.Port = 3306
}
}
// UseSQLite resets the Config's Database to use default values for a SQLite setup.
func (cfg *Config) UseSQLite(fresh bool) {
cfg.Database.Type = "sqlite3"
if fresh {
cfg.Database.FileName = "writefreely.db"
}
}
// IsSecureStandalone returns whether or not the application is running as a
// standalone server with TLS enabled.
func (cfg *Config) IsSecureStandalone() bool {
return cfg.Server.Port == 443 && cfg.Server.TLSCertPath != "" && cfg.Server.TLSKeyPath != ""
}
func (ac *AppCfg) LandingPath() string {
if !strings.HasPrefix(ac.Landing, "/") {
return "/" + ac.Landing
}
return ac.Landing
}
// Load reads the given configuration file, then parses and returns it as a Config.
func Load(fname string) (*Config, error) {
if fname == "" {
fname = FileName
}
cfg, err := ini.Load(fname)
if err != nil {
return nil, err
}
// Parse INI file
uc := &Config{}
err = cfg.MapTo(uc)
if err != nil {
return nil, err
}
return uc, nil
}
// Save writes the given Config to the given file.
func Save(uc *Config, fname string) error {
cfg := ini.Empty()
err := ini.ReflectFrom(cfg, uc)
if err != nil {
return err
}
if fname == "" {
fname = FileName
}
return cfg.SaveTo(fname)
}