gotosocial/internal/config/config.go
2021-06-24 14:26:08 +02:00

459 lines
14 KiB
Go

/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package config
import (
"errors"
"fmt"
"os"
"gopkg.in/yaml.v2"
)
// Flags and usage strings for configuration.
const (
UsernameFlag = "username"
UsernameUsage = "the username to create/delete/etc"
EmailFlag = "email"
EmailUsage = "the email address of this account"
PasswordFlag = "password"
PasswordUsage = "the password to set for this account"
)
// Config pulls together all the configuration needed to run gotosocial
type Config struct {
/*
Parseable from .yaml configuration file.
For long-running commands (server start etc).
*/
LogLevel string `yaml:"logLevel"`
ApplicationName string `yaml:"applicationName"`
Host string `yaml:"host"`
Protocol string `yaml:"protocol"`
DBConfig *DBConfig `yaml:"db"`
TemplateConfig *TemplateConfig `yaml:"template"`
AccountsConfig *AccountsConfig `yaml:"accounts"`
MediaConfig *MediaConfig `yaml:"media"`
StorageConfig *StorageConfig `yaml:"storage"`
StatusesConfig *StatusesConfig `yaml:"statuses"`
LetsEncryptConfig *LetsEncryptConfig `yaml:"letsEncrypt"`
/*
Not parsed from .yaml configuration file.
*/
AccountCLIFlags map[string]string
SoftwareVersion string
}
// FromFile returns a new config from a file, or an error if something goes amiss.
func FromFile(path string) (*Config, error) {
if path != "" {
c, err := loadFromFile(path)
if err != nil {
return nil, fmt.Errorf("error creating config: %s", err)
}
return c, nil
}
return Empty(), nil
}
// Empty just returns a new empty config
func Empty() *Config {
return &Config{
DBConfig: &DBConfig{},
TemplateConfig: &TemplateConfig{},
AccountsConfig: &AccountsConfig{},
MediaConfig: &MediaConfig{},
StorageConfig: &StorageConfig{},
StatusesConfig: &StatusesConfig{},
LetsEncryptConfig: &LetsEncryptConfig{},
AccountCLIFlags: make(map[string]string),
}
}
// loadFromFile takes a path to a yaml file and attempts to load a Config object from it
func loadFromFile(path string) (*Config, error) {
bytes, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("could not read file at path %s: %s", path, err)
}
config := &Config{}
if err := yaml.Unmarshal(bytes, config); err != nil {
return nil, fmt.Errorf("could not unmarshal file at path %s: %s", path, err)
}
return config, nil
}
// ParseCLIFlags sets flags on the config using the provided Flags object
func (c *Config) ParseCLIFlags(f KeyedFlags) error {
fn := GetFlagNames()
// For all of these flags, we only want to set them on the config if:
//
// a) They haven't been set at all in the config file we already parsed,
// and so we take the default from the flags object.
//
// b) They may have been set in the config, but they've *also* been set explicitly
// as a command-line argument or an env variable, which takes priority.
// general flags
if c.LogLevel == "" || f.IsSet(fn.LogLevel) {
c.LogLevel = f.String(fn.LogLevel)
}
if c.ApplicationName == "" || f.IsSet(fn.ApplicationName) {
c.ApplicationName = f.String(fn.ApplicationName)
}
if c.Host == "" || f.IsSet(fn.Host) {
c.Host = f.String(fn.Host)
}
if c.Host == "" {
return errors.New("host was not set")
}
if c.Protocol == "" || f.IsSet(fn.Protocol) {
c.Protocol = f.String(fn.Protocol)
}
if c.Protocol == "" {
return errors.New("protocol was not set")
}
// db flags
if c.DBConfig.Type == "" || f.IsSet(fn.DbType) {
c.DBConfig.Type = f.String(fn.DbType)
}
if c.DBConfig.Address == "" || f.IsSet(fn.DbAddress) {
c.DBConfig.Address = f.String(fn.DbAddress)
}
if c.DBConfig.Port == 0 || f.IsSet(fn.DbPort) {
c.DBConfig.Port = f.Int(fn.DbPort)
}
if c.DBConfig.User == "" || f.IsSet(fn.DbUser) {
c.DBConfig.User = f.String(fn.DbUser)
}
if c.DBConfig.Password == "" || f.IsSet(fn.DbPassword) {
c.DBConfig.Password = f.String(fn.DbPassword)
}
if c.DBConfig.Database == "" || f.IsSet(fn.DbDatabase) {
c.DBConfig.Database = f.String(fn.DbDatabase)
}
// template flags
if c.TemplateConfig.BaseDir == "" || f.IsSet(fn.TemplateBaseDir) {
c.TemplateConfig.BaseDir = f.String(fn.TemplateBaseDir)
}
// template flags
if c.TemplateConfig.AssetBaseDir == "" || f.IsSet(fn.AssetBaseDir) {
c.TemplateConfig.AssetBaseDir = f.String(fn.AssetBaseDir)
}
// accounts flags
if f.IsSet(fn.AccountsOpenRegistration) {
c.AccountsConfig.OpenRegistration = f.Bool(fn.AccountsOpenRegistration)
}
if f.IsSet(fn.AccountsApprovalRequired) {
c.AccountsConfig.RequireApproval = f.Bool(fn.AccountsApprovalRequired)
}
// media flags
if c.MediaConfig.MaxImageSize == 0 || f.IsSet(fn.MediaMaxImageSize) {
c.MediaConfig.MaxImageSize = f.Int(fn.MediaMaxImageSize)
}
if c.MediaConfig.MaxVideoSize == 0 || f.IsSet(fn.MediaMaxVideoSize) {
c.MediaConfig.MaxVideoSize = f.Int(fn.MediaMaxVideoSize)
}
if c.MediaConfig.MinDescriptionChars == 0 || f.IsSet(fn.MediaMinDescriptionChars) {
c.MediaConfig.MinDescriptionChars = f.Int(fn.MediaMinDescriptionChars)
}
if c.MediaConfig.MaxDescriptionChars == 0 || f.IsSet(fn.MediaMaxDescriptionChars) {
c.MediaConfig.MaxDescriptionChars = f.Int(fn.MediaMaxDescriptionChars)
}
// storage flags
if c.StorageConfig.Backend == "" || f.IsSet(fn.StorageBackend) {
c.StorageConfig.Backend = f.String(fn.StorageBackend)
}
if c.StorageConfig.BasePath == "" || f.IsSet(fn.StorageBasePath) {
c.StorageConfig.BasePath = f.String(fn.StorageBasePath)
}
if c.StorageConfig.ServeProtocol == "" || f.IsSet(fn.StorageServeProtocol) {
c.StorageConfig.ServeProtocol = f.String(fn.StorageServeProtocol)
}
if c.StorageConfig.ServeHost == "" || f.IsSet(fn.StorageServeHost) {
c.StorageConfig.ServeHost = f.String(fn.StorageServeHost)
}
if c.StorageConfig.ServeBasePath == "" || f.IsSet(fn.StorageServeBasePath) {
c.StorageConfig.ServeBasePath = f.String(fn.StorageServeBasePath)
}
// statuses flags
if c.StatusesConfig.MaxChars == 0 || f.IsSet(fn.StatusesMaxChars) {
c.StatusesConfig.MaxChars = f.Int(fn.StatusesMaxChars)
}
if c.StatusesConfig.CWMaxChars == 0 || f.IsSet(fn.StatusesCWMaxChars) {
c.StatusesConfig.CWMaxChars = f.Int(fn.StatusesCWMaxChars)
}
if c.StatusesConfig.PollMaxOptions == 0 || f.IsSet(fn.StatusesPollMaxOptions) {
c.StatusesConfig.PollMaxOptions = f.Int(fn.StatusesPollMaxOptions)
}
if c.StatusesConfig.PollOptionMaxChars == 0 || f.IsSet(fn.StatusesPollOptionMaxChars) {
c.StatusesConfig.PollOptionMaxChars = f.Int(fn.StatusesPollOptionMaxChars)
}
if c.StatusesConfig.MaxMediaFiles == 0 || f.IsSet(fn.StatusesMaxMediaFiles) {
c.StatusesConfig.MaxMediaFiles = f.Int(fn.StatusesMaxMediaFiles)
}
// letsencrypt flags
if f.IsSet(fn.LetsEncryptEnabled) {
c.LetsEncryptConfig.Enabled = f.Bool(fn.LetsEncryptEnabled)
}
if c.LetsEncryptConfig.CertDir == "" || f.IsSet(fn.LetsEncryptCertDir) {
c.LetsEncryptConfig.CertDir = f.String(fn.LetsEncryptCertDir)
}
if c.LetsEncryptConfig.EmailAddress == "" || f.IsSet(fn.LetsEncryptEmailAddress) {
c.LetsEncryptConfig.EmailAddress = f.String(fn.LetsEncryptEmailAddress)
}
c.SoftwareVersion = GetDefaults().SoftwareVersion
// command-specific flags
// admin account CLI flags
c.AccountCLIFlags[UsernameFlag] = f.String(UsernameFlag)
c.AccountCLIFlags[EmailFlag] = f.String(EmailFlag)
c.AccountCLIFlags[PasswordFlag] = f.String(PasswordFlag)
return nil
}
// KeyedFlags is a wrapper for any type that can store keyed flags and give them back.
// HINT: This works with a urfave cli context struct ;)
type KeyedFlags interface {
Bool(k string) bool
String(k string) string
Int(k string) int
IsSet(k string) bool
}
// Flags is used for storing the names of the various flags used for
// initializing and storing urfavecli flag variables.
type Flags struct {
LogLevel string
ApplicationName string
ConfigPath string
Host string
Protocol string
DbType string
DbAddress string
DbPort string
DbUser string
DbPassword string
DbDatabase string
TemplateBaseDir string
AssetBaseDir string
AccountsOpenRegistration string
AccountsApprovalRequired string
AccountsReasonRequired string
MediaMaxImageSize string
MediaMaxVideoSize string
MediaMinDescriptionChars string
MediaMaxDescriptionChars string
StorageBackend string
StorageBasePath string
StorageServeProtocol string
StorageServeHost string
StorageServeBasePath string
StatusesMaxChars string
StatusesCWMaxChars string
StatusesPollMaxOptions string
StatusesPollOptionMaxChars string
StatusesMaxMediaFiles string
LetsEncryptEnabled string
LetsEncryptCertDir string
LetsEncryptEmailAddress string
}
// Defaults contains all the default values for a gotosocial config
type Defaults struct {
LogLevel string
ApplicationName string
ConfigPath string
Host string
Protocol string
SoftwareVersion string
DbType string
DbAddress string
DbPort int
DbUser string
DbPassword string
DbDatabase string
TemplateBaseDir string
AssetBaseDir string
AccountsOpenRegistration bool
AccountsRequireApproval bool
AccountsReasonRequired bool
MediaMaxImageSize int
MediaMaxVideoSize int
MediaMinDescriptionChars int
MediaMaxDescriptionChars int
StorageBackend string
StorageBasePath string
StorageServeProtocol string
StorageServeHost string
StorageServeBasePath string
StatusesMaxChars int
StatusesCWMaxChars int
StatusesPollMaxOptions int
StatusesPollOptionMaxChars int
StatusesMaxMediaFiles int
LetsEncryptEnabled bool
LetsEncryptCertDir string
LetsEncryptEmailAddress string
}
// GetFlagNames returns a struct containing the names of the various flags used for
// initializing and storing urfavecli flag variables.
func GetFlagNames() Flags {
return Flags{
LogLevel: "log-level",
ApplicationName: "application-name",
ConfigPath: "config-path",
Host: "host",
Protocol: "protocol",
DbType: "db-type",
DbAddress: "db-address",
DbPort: "db-port",
DbUser: "db-user",
DbPassword: "db-password",
DbDatabase: "db-database",
TemplateBaseDir: "template-basedir",
AssetBaseDir: "asset-basedir",
AccountsOpenRegistration: "accounts-open-registration",
AccountsApprovalRequired: "accounts-approval-required",
AccountsReasonRequired: "accounts-reason-required",
MediaMaxImageSize: "media-max-image-size",
MediaMaxVideoSize: "media-max-video-size",
MediaMinDescriptionChars: "media-min-description-chars",
MediaMaxDescriptionChars: "media-max-description-chars",
StorageBackend: "storage-backend",
StorageBasePath: "storage-base-path",
StorageServeProtocol: "storage-serve-protocol",
StorageServeHost: "storage-serve-host",
StorageServeBasePath: "storage-serve-base-path",
StatusesMaxChars: "statuses-max-chars",
StatusesCWMaxChars: "statuses-cw-max-chars",
StatusesPollMaxOptions: "statuses-poll-max-options",
StatusesPollOptionMaxChars: "statuses-poll-option-max-chars",
StatusesMaxMediaFiles: "statuses-max-media-files",
LetsEncryptEnabled: "letsencrypt-enabled",
LetsEncryptCertDir: "letsencrypt-cert-dir",
LetsEncryptEmailAddress: "letsencrypt-email",
}
}
// GetEnvNames returns a struct containing the names of the environment variable keys used for
// initializing and storing urfavecli flag variables.
func GetEnvNames() Flags {
return Flags{
LogLevel: "GTS_LOG_LEVEL",
ApplicationName: "GTS_APPLICATION_NAME",
ConfigPath: "GTS_CONFIG_PATH",
Host: "GTS_HOST",
Protocol: "GTS_PROTOCOL",
DbType: "GTS_DB_TYPE",
DbAddress: "GTS_DB_ADDRESS",
DbPort: "GTS_DB_PORT",
DbUser: "GTS_DB_USER",
DbPassword: "GTS_DB_PASSWORD",
DbDatabase: "GTS_DB_DATABASE",
TemplateBaseDir: "GTS_TEMPLATE_BASEDIR",
AssetBaseDir: "GTS_ASSET_BASEDIR",
AccountsOpenRegistration: "GTS_ACCOUNTS_OPEN_REGISTRATION",
AccountsApprovalRequired: "GTS_ACCOUNTS_APPROVAL_REQUIRED",
AccountsReasonRequired: "GTS_ACCOUNTS_REASON_REQUIRED",
MediaMaxImageSize: "GTS_MEDIA_MAX_IMAGE_SIZE",
MediaMaxVideoSize: "GTS_MEDIA_MAX_VIDEO_SIZE",
MediaMinDescriptionChars: "GTS_MEDIA_MIN_DESCRIPTION_CHARS",
MediaMaxDescriptionChars: "GTS_MEDIA_MAX_DESCRIPTION_CHARS",
StorageBackend: "GTS_STORAGE_BACKEND",
StorageBasePath: "GTS_STORAGE_BASE_PATH",
StorageServeProtocol: "GTS_STORAGE_SERVE_PROTOCOL",
StorageServeHost: "GTS_STORAGE_SERVE_HOST",
StorageServeBasePath: "GTS_STORAGE_SERVE_BASE_PATH",
StatusesMaxChars: "GTS_STATUSES_MAX_CHARS",
StatusesCWMaxChars: "GTS_STATUSES_CW_MAX_CHARS",
StatusesPollMaxOptions: "GTS_STATUSES_POLL_MAX_OPTIONS",
StatusesPollOptionMaxChars: "GTS_STATUSES_POLL_OPTION_MAX_CHARS",
StatusesMaxMediaFiles: "GTS_STATUSES_MAX_MEDIA_FILES",
LetsEncryptEnabled: "GTS_LETSENCRYPT_ENABLED",
LetsEncryptCertDir: "GTS_LETSENCRYPT_CERT_DIR",
LetsEncryptEmailAddress: "GTS_LETSENCRYPT_EMAIL",
}
}