goweb-oidc/internal/config/config.go

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package config
import (
"io"
"io/ioutil"
"time"
"github.com/pkg/errors"
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"gitlab.com/wpetit/goweb/logger"
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"github.com/caarlos0/env/v6"
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"gopkg.in/yaml.v2"
)
type Config struct {
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Log LogConfig `yaml:"log"`
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HTTP HTTPConfig `yaml:"http"`
OIDC OIDCConfig `yaml:"oidc"`
}
// NewFromFile retrieves the configuration from the given file
func NewFromFile(filepath string) (*Config, error) {
config := NewDefault()
data, err := ioutil.ReadFile(filepath)
if err != nil {
return nil, errors.Wrapf(err, "could not read file '%s'", filepath)
}
if err := yaml.Unmarshal(data, config); err != nil {
return nil, errors.Wrapf(err, "could not unmarshal configuration")
}
return config, nil
}
type HTTPConfig struct {
Address string `yaml:"address" env:"HTTP_ADDRESS"`
CookieAuthenticationKey string `yaml:"cookieAuthenticationKey" env:"HTTP_COOKIE_AUTHENTICATION_KEY"`
CookieEncryptionKey string `yaml:"cookieEncryptionKey" env:"HTTP_COOKIE_ENCRYPTION_KEY"`
CookieMaxAge int `yaml:"cookieMaxAge" env:"HTTP_COOKIE_MAX_AGE"`
TemplateDir string `yaml:"templateDir" env:"HTTP_TEMPLATE_DIR"`
PublicDir string `yaml:"publicDir" env:"HTTP_PUBLIC_DIR"`
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}
type OIDCConfig struct {
ClientID string `yaml:"clientId" env:"OIDC_CLIENT_ID"`
ClientSecret string `yaml:"clientSecret" env:"OIDC_CLIENT_SECRET"`
IssuerURL string `ymal:"issuerUrl" env:"OIDC_ISSUER_URL"`
RedirectURL string `yaml:"redirectUrl" env:"OIDC_REDIRECT_URL"`
PostLogoutRedirectURL string `yaml:"postLogoutRedirectURL" env:"OIDC_POST_LOGOUT_REDIRECT_URL"`
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}
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type LogConfig struct {
Level logger.Level `yaml:"level" env:"LOG_LEVEL"`
Format logger.Format `yaml:"format" env:"LOG_FORMAT"`
}
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func NewDumpDefault() *Config {
config := NewDefault()
return config
}
func NewDefault() *Config {
return &Config{
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Log: LogConfig{
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Level: logger.LevelInfo,
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Format: logger.FormatHuman,
},
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HTTP: HTTPConfig{
Address: ":3002",
CookieAuthenticationKey: "",
CookieEncryptionKey: "",
CookieMaxAge: int((time.Hour * 1).Seconds()), // 1 hour
TemplateDir: "template",
PublicDir: "public",
},
OIDC: OIDCConfig{
IssuerURL: "http://localhost:4444/",
RedirectURL: "http://localhost:3002/oauth2/callback",
PostLogoutRedirectURL: "http://localhost:3002",
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},
}
}
func Dump(config *Config, w io.Writer) error {
data, err := yaml.Marshal(config)
if err != nil {
return errors.Wrap(err, "could not dump config")
}
if _, err := w.Write(data); err != nil {
return err
}
return nil
}
func WithEnvironment(conf *Config) error {
if err := env.Parse(conf); err != nil {
return err
}
return nil
}