-
Notifications
You must be signed in to change notification settings - Fork 29
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Roles are similar to default user configurations in that they specify the permissions for a client. These permissions are associated with a signing key. Any user issued with the specified signing key is only allowed the permissions specified by the account.
- Loading branch information
Showing
8 changed files
with
468 additions
and
18 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| /* | ||
| * Copyright 2020 The NATS Authors | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package jwt | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "github.com/nats-io/nkeys" | ||
| ) | ||
|
|
||
| type Scope interface { | ||
| SigningKey() string | ||
| ValidateScopedSigner(claim Claims) error | ||
| Validate(vr *ValidationResults) | ||
| } | ||
|
|
||
| const UserScopeType = "user_template" | ||
|
|
||
| type UserScope struct { | ||
| Kind string `json:"kind"` | ||
| Key string `json:"key"` | ||
| Role string `json:"role"` | ||
| Template UserPermissionLimits `json:"template"` | ||
| } | ||
|
|
||
| func NewUserScope() *UserScope { | ||
| var s UserScope | ||
| s.Kind = UserScopeType | ||
| s.Template.NatsLimits = NatsLimits{NoLimit, NoLimit, NoLimit} | ||
| return &s | ||
| } | ||
|
|
||
| func (us UserScope) SigningKey() string { | ||
| return us.Key | ||
| } | ||
|
|
||
| func (us UserScope) Validate(vr *ValidationResults) { | ||
| if !nkeys.IsValidPublicAccountKey(us.Key) { | ||
| vr.AddError("%s is not an account public key", us.Key) | ||
| } | ||
| } | ||
|
|
||
| func (us UserScope) ValidateScopedSigner(c Claims) error { | ||
| uc, ok := c.(*UserClaims) | ||
| if !ok { | ||
| return fmt.Errorf("not an user claim - scoped signing key requires user claim") | ||
| } | ||
| if uc.Claims().Issuer != us.Key { | ||
| return errors.New("issuer not the scoped signer") | ||
| } | ||
|
|
||
| ul := UserPermissionLimits{} | ||
| ul.Permissions = uc.Permissions | ||
| ul.BearerToken = uc.BearerToken | ||
| ul.Limits = uc.Limits | ||
| ul.AllowedConnectionTypes = uc.AllowedConnectionTypes | ||
|
|
||
| if !ul.Empty() { | ||
| return errors.New("scoped users require no permissions or limits set") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // SigningKeys is a map keyed by a public account key | ||
| type SigningKeys map[string]Scope | ||
|
|
||
| func (sk SigningKeys) Validate(vr *ValidationResults){ | ||
| for k, v := range sk { | ||
| // regular signing keys won't have a scope | ||
| if v != nil { | ||
| sv, ok := v.(Scope) | ||
| if ok { | ||
| sv.Validate(vr) | ||
| } | ||
| } else { | ||
| if !nkeys.IsValidPublicAccountKey(k) { | ||
| vr.AddError("%q is not a valid account signing key", k) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // MarshalJSON serializes the scoped signing keys as an array | ||
| func (sk SigningKeys) MarshalJSON() ([]byte, error) { | ||
| var a []interface{} | ||
| for k, v := range sk { | ||
| if v != nil { | ||
| a = append(a, v) | ||
| } else { | ||
| a = append(a, k) | ||
| } | ||
| } | ||
| return json.Marshal(a) | ||
| } | ||
|
|
||
| func (sk SigningKeys) UnmarshalJSON(data []byte) error { | ||
| // read an array - we can have a string or an map | ||
| var a []interface{} | ||
| if err := json.Unmarshal(data, &a); err != nil { | ||
| return err | ||
| } | ||
| for _, i := range a { | ||
| switch v := i.(type) { | ||
| case string: | ||
| sk[v] = nil | ||
| case map[string]interface{}: | ||
| d, err := json.Marshal(v) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| switch v["kind"] { | ||
|
|
||
| case UserScopeType: | ||
| us := NewUserScope() | ||
| if err := json.Unmarshal(d, &us); err != nil { | ||
| return err | ||
| } | ||
| sk[us.Key] = us | ||
| default: | ||
| return fmt.Errorf("unknown signing key scope %q", v["type"]) | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // GetScope returns nil if the key is not associated | ||
| func (sk SigningKeys) GetScope(k string) (Scope, bool) { | ||
| v, ok := sk[k] | ||
| if !ok { | ||
| return nil, false | ||
| } | ||
| return v, true | ||
| } | ||
|
|
||
| func (sk SigningKeys) Contains(k string) bool { | ||
| _, ok := sk[k] | ||
| return ok | ||
| } | ||
|
|
||
| func (sk SigningKeys) Add(keys ...string) { | ||
| for _, k := range keys { | ||
| sk[k] = nil | ||
| } | ||
| } | ||
|
|
||
| func (sk SigningKeys) AddScopedSigner(s Scope) { | ||
| sk[s.SigningKey()] = s | ||
| } | ||
|
|
||
| func (sk SigningKeys) Remove(keys ...string) { | ||
| for _, k := range keys { | ||
| delete(sk, k) | ||
| } | ||
| } | ||
|
|
||
|
|
||
|
|
Oops, something went wrong.