mirror of https://github.com/tidwall/tile38.git
107 lines
3.0 KiB
Go
107 lines
3.0 KiB
Go
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/*
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* Copyright 2018-2019 The NATS Authors
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package jwt
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import (
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"errors"
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"github.com/nats-io/nkeys"
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)
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// User defines the user specific data in a user JWT
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type User struct {
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Permissions
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Limits
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BearerToken bool `json:"bearer_token,omitempty"`
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}
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// Validate checks the permissions and limits in a User jwt
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func (u *User) Validate(vr *ValidationResults) {
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u.Permissions.Validate(vr)
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u.Limits.Validate(vr)
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// When BearerToken is true server will ignore any nonce-signing verification
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}
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// UserClaims defines a user JWT
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type UserClaims struct {
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ClaimsData
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User `json:"nats,omitempty"`
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// IssuerAccount stores the public key for the account the issuer represents.
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// When set, the claim was issued by a signing key.
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IssuerAccount string `json:"issuer_account,omitempty"`
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}
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// NewUserClaims creates a user JWT with the specific subject/public key
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func NewUserClaims(subject string) *UserClaims {
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if subject == "" {
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return nil
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}
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c := &UserClaims{}
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c.Subject = subject
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return c
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}
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// Encode tries to turn the user claims into a JWT string
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func (u *UserClaims) Encode(pair nkeys.KeyPair) (string, error) {
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if !nkeys.IsValidPublicUserKey(u.Subject) {
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return "", errors.New("expected subject to be user public key")
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}
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u.ClaimsData.Type = UserClaim
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return u.ClaimsData.Encode(pair, u)
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}
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// DecodeUserClaims tries to parse a user claims from a JWT string
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func DecodeUserClaims(token string) (*UserClaims, error) {
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v := UserClaims{}
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if err := Decode(token, &v); err != nil {
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return nil, err
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}
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return &v, nil
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}
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// Validate checks the generic and specific parts of the user jwt
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func (u *UserClaims) Validate(vr *ValidationResults) {
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u.ClaimsData.Validate(vr)
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u.User.Validate(vr)
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if u.IssuerAccount != "" && !nkeys.IsValidPublicAccountKey(u.IssuerAccount) {
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vr.AddError("account_id is not an account public key")
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}
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}
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// ExpectedPrefixes defines the types that can encode a user JWT, account
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func (u *UserClaims) ExpectedPrefixes() []nkeys.PrefixByte {
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return []nkeys.PrefixByte{nkeys.PrefixByteAccount}
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}
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// Claims returns the generic data from a user jwt
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func (u *UserClaims) Claims() *ClaimsData {
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return &u.ClaimsData
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}
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// Payload returns the user specific data from a user JWT
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func (u *UserClaims) Payload() interface{} {
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return &u.User
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}
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func (u *UserClaims) String() string {
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return u.ClaimsData.String(u)
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}
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// IsBearerToken returns true if nonce-signing requirements should be skipped
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func (u *UserClaims) IsBearerToken() bool {
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return u.BearerToken
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}
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