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Merge pull request GoogleCloudPlatform#3463 from nb-goog/handle_identity
Add Key Handle identity
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,129 @@ | ||
| // Copyright 2024 Google LLC | ||
| // | ||
| // 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. | ||
|
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| package v1beta1 | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
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| refsv1beta1 "github.com/GoogleCloudPlatform/k8s-config-connector/apis/refs/v1beta1" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
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| type KMSKeyHandleIdentity struct { | ||
| id string | ||
| parent *KMSKeyHandleParent | ||
| } | ||
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| func (i *KMSKeyHandleIdentity) String() string { | ||
| return i.parent.String() + "/keyHandles/" + i.id | ||
| } | ||
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| func (r *KMSKeyHandleIdentity) Parent() *KMSKeyHandleParent { | ||
| return r.parent | ||
| } | ||
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| type KMSKeyHandleParent struct { | ||
| ProjectID string | ||
| Location string | ||
| } | ||
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| func (p *KMSKeyHandleParent) String() string { | ||
| return "projects/" + p.ProjectID + "/locations/" + p.Location | ||
| } | ||
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| func asKMSKeyHandleExternal(parent *KMSKeyHandleParent, resourceID string) (external string) { | ||
| return parent.String() + "/keyHandles/" + resourceID | ||
| } | ||
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| func NewKMSKeyHandleIdentity(ctx context.Context, reader client.Reader, obj *KMSKeyHandle) (*KMSKeyHandleIdentity, error) { | ||
| id := &KMSKeyHandleIdentity{} | ||
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| // Get Parent | ||
| projectRef, err := refsv1beta1.ResolveProject(ctx, reader, obj.GetNamespace(), obj.Spec.ProjectRef) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| projectID := projectRef.ProjectID | ||
| if projectID == "" { | ||
| return nil, fmt.Errorf("cannot resolve project") | ||
| } | ||
| location := valueOf(obj.Spec.Location) | ||
| id.parent = &KMSKeyHandleParent{ProjectID: projectID, Location: location} | ||
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| // Get desired ID | ||
| desiredHandleID := valueOf(obj.Spec.ResourceID) | ||
| // set the desired keyhandle id in the identity | ||
| id.id = desiredHandleID | ||
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| // At this point we are expecting desiredHandleID to be either empty or valid uuid | ||
| // 1. if desiredHandleID empty: | ||
| // id.external will be projects/{{pid}}/locations/{{loc}}/keyHandles/. i.e without resourceID. | ||
| // A call will be made to find() with invalid externalID which will return false. | ||
| // 2. if desiredHandleID is a valid UUID: id.external will be valid. | ||
| // Use approved External | ||
| externalRef := valueOf(obj.Status.ExternalRef) | ||
| if externalRef != "" { | ||
| actualParent, actualHandleID, err := ParseKMSKeyHandleExternal(externalRef) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| // Validate desired with actual | ||
| if actualParent.ProjectID != projectID { | ||
| return nil, fmt.Errorf("spec.projectRef changed, expect %s, got %s", actualParent.ProjectID, projectID) | ||
| } | ||
| if actualParent.Location != location { | ||
| return nil, fmt.Errorf("spec.location changed, expect %s, got %s", actualParent.Location, location) | ||
| } | ||
| if desiredHandleID != "" && (actualHandleID != desiredHandleID) { | ||
| return nil, fmt.Errorf("cannot reset `spec.resourceID` to %s, since it has already assigned to %s", | ||
| desiredHandleID, actualHandleID) | ||
| } | ||
| return id, nil | ||
| } | ||
| return id, nil | ||
| } | ||
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| func ParseKMSKeyHandleExternal(external string) (parent *KMSKeyHandleParent, resourceID string, err error) { | ||
| external = strings.TrimPrefix(external, "/") | ||
| tokens := strings.Split(external, "/") | ||
| if len(tokens) != 6 || tokens[0] != "projects" || tokens[2] != "locations" || tokens[4] != "keyHandles" { | ||
| return nil, "", fmt.Errorf("format of KMSKeyHandle external=%q was not known (use projects/{{projectId}}/locations/{{location}}/keyHandles/{{keyhandleID}})", external) | ||
| } | ||
| parent = &KMSKeyHandleParent{ | ||
| ProjectID: tokens[1], | ||
| Location: tokens[3], | ||
| } | ||
| resourceID = tokens[5] | ||
| return parent, resourceID, nil | ||
| } | ||
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| func (r *KMSKeyHandleIdentity) KeyHandleID() (string, bool) { | ||
| return r.id, r.id != "" | ||
| } | ||
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| func asKMSKeyHandleExternal_FromSpec(spec *KMSKeyHandleSpec) (parent *KMSKeyHandleParent, resourceID string, err error) { | ||
| external := strings.TrimPrefix(spec.ProjectRef.External, "/") | ||
| tokens := strings.Split(external, "/") | ||
| if len(tokens) != 2 || tokens[0] != "projects" { | ||
| return nil, "", fmt.Errorf("invalid projectRef found in KMSKeyHandle=%q was not known (use projects/{{projectId}})", external) | ||
| } | ||
| parent = &KMSKeyHandleParent{ | ||
| ProjectID: tokens[1], | ||
| Location: valueOf(spec.Location), | ||
| } | ||
| return parent, valueOf(spec.ResourceID), nil | ||
| } |
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