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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,55 @@ | ||
| package jwt | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/coreos/go-oidc/v3/oidc" | ||
| "github.com/nimbolus/terraform-backend/terraform" | ||
| ) | ||
|
|
||
| type JWTAuth struct { | ||
| issuerURL string | ||
| } | ||
|
|
||
| func NewJWTAuth(issuerURL string) *JWTAuth { | ||
| return &JWTAuth{ | ||
| issuerURL: issuerURL, | ||
| } | ||
| } | ||
|
|
||
| func (l *JWTAuth) GetName() string { | ||
| return "jwt" | ||
| } | ||
|
|
||
| func (b *JWTAuth) Authenticate(secret string, s *terraform.State) (bool, error) { | ||
| provider, err := oidc.NewProvider(context.Background(), b.issuerURL) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
|
|
||
| verifier := provider.Verifier(&oidc.Config{ | ||
| SkipClientIDCheck: true, | ||
| }) | ||
|
|
||
| token, err := verifier.Verify(context.Background(), secret) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
|
|
||
| var claims struct { | ||
| TerraformBackend struct { | ||
| Project string `json:"project"` | ||
| State string `json:"state"` | ||
| } `json:"terraform-backend"` | ||
| } | ||
| if err := token.Claims(&claims); err != nil { | ||
| return false, err | ||
| } | ||
|
|
||
| tokenID := terraform.GetStateID(claims.TerraformBackend.Project, claims.TerraformBackend.State) | ||
| if s.ID == tokenID { | ||
| return true, nil | ||
| } | ||
|
|
||
| return false, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,18 @@ | ||
| package terraform | ||
|
|
||
| import ( | ||
| "crypto/sha256" | ||
| "fmt" | ||
| ) | ||
|
|
||
| type State struct { | ||
| ID string | ||
| Data []byte | ||
| Lock []byte | ||
| } | ||
|
|
||
| func GetStateID(project, id string) string { | ||
| path := fmt.Sprintf("%s-%s", project, id) | ||
| hash := sha256.Sum256([]byte(path)) | ||
| return fmt.Sprintf("%x", hash[:]) | ||
| } |