152 lines
3.0 KiB
Go
152 lines
3.0 KiB
Go
// Package jwt is a jwt implementation of the auth interface
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package jwt
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import (
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"sync"
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"time"
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"github.com/micro/go-micro/v2/auth"
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"github.com/micro/go-micro/v2/util/token"
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"github.com/micro/go-micro/v2/util/token/jwt"
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)
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// NewAuth returns a new instance of the Auth service
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func NewAuth(opts ...auth.Option) auth.Auth {
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j := new(jwtAuth)
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j.Init(opts...)
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return j
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}
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type jwtAuth struct {
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options auth.Options
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token token.Provider
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rules []*auth.Rule
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sync.Mutex
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}
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func (j *jwtAuth) String() string {
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return "jwt"
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}
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func (j *jwtAuth) Init(opts ...auth.Option) {
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j.Lock()
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defer j.Unlock()
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for _, o := range opts {
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o(&j.options)
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}
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j.token = jwt.NewTokenProvider(
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token.WithPrivateKey(j.options.PrivateKey),
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token.WithPublicKey(j.options.PublicKey),
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)
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}
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func (j *jwtAuth) Options() auth.Options {
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j.Lock()
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defer j.Unlock()
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return j.options
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}
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func (j *jwtAuth) Generate(id string, opts ...auth.GenerateOption) (*auth.Account, error) {
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options := auth.NewGenerateOptions(opts...)
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if len(options.Issuer) == 0 {
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options.Issuer = j.Options().Issuer
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}
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account := &auth.Account{
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ID: id,
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Type: options.Type,
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Scopes: options.Scopes,
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Metadata: options.Metadata,
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Issuer: options.Issuer,
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}
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// generate a JWT secret which can be provided to the Token() method
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// and exchanged for an access token
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secret, err := j.token.Generate(account, token.WithExpiry(time.Hour*24*365))
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if err != nil {
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return nil, err
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}
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account.Secret = secret.Token
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// return the account
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return account, nil
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}
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func (j *jwtAuth) Grant(rule *auth.Rule) error {
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j.Lock()
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defer j.Unlock()
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j.rules = append(j.rules, rule)
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return nil
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}
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func (j *jwtAuth) Revoke(rule *auth.Rule) error {
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j.Lock()
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defer j.Unlock()
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rules := []*auth.Rule{}
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for _, r := range j.rules {
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if r.ID != rule.ID {
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rules = append(rules, r)
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}
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}
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j.rules = rules
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return nil
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}
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func (j *jwtAuth) Verify(acc *auth.Account, res *auth.Resource, opts ...auth.VerifyOption) error {
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j.Lock()
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defer j.Unlock()
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var options auth.VerifyOptions
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for _, o := range opts {
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o(&options)
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}
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return auth.VerifyAccess(j.rules, acc, res)
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}
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func (j *jwtAuth) Rules(opts ...auth.RulesOption) ([]*auth.Rule, error) {
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j.Lock()
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defer j.Unlock()
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return j.rules, nil
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}
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func (j *jwtAuth) Inspect(token string) (*auth.Account, error) {
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return j.token.Inspect(token)
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}
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func (j *jwtAuth) Token(opts ...auth.TokenOption) (*auth.Token, error) {
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options := auth.NewTokenOptions(opts...)
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secret := options.RefreshToken
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if len(options.Secret) > 0 {
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secret = options.Secret
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}
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account, err := j.token.Inspect(secret)
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if err != nil {
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return nil, err
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}
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access, err := j.token.Generate(account, token.WithExpiry(options.Expiry))
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if err != nil {
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return nil, err
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}
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refresh, err := j.token.Generate(account, token.WithExpiry(options.Expiry+time.Hour))
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if err != nil {
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return nil, err
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}
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return &auth.Token{
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Created: access.Created,
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Expiry: access.Expiry,
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AccessToken: access.Token,
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RefreshToken: refresh.Token,
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}, nil
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}
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