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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "net/url" | ||
| "testing" | ||
|
|
||
| "k8s.io/client-go/pkg/api/unversioned" | ||
|
|
||
| v1 "k8s.io/client-go/pkg/api/v1" | ||
| ) | ||
|
|
||
| func withServer(t *testing.T, metadataProtection bool, request *http.Request, callback func(rr *httptest.ResponseRecorder)) { | ||
| kubernetesService := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { | ||
| rw.Header().Set("Content-Type", "application/json") | ||
| if r.URL.Path == "/api/v1/namespaces" { | ||
| responseJSON, err := json.Marshal(v1.NamespaceList{ | ||
| TypeMeta: unversioned.TypeMeta{ | ||
| Kind: "NamespaceList", | ||
| APIVersion: "v1", | ||
| }, | ||
| Items: []v1.Namespace{}, | ||
| }) | ||
| if err != nil { | ||
| t.Errorf("Failed to marshal json: %v", err) | ||
| } | ||
|
|
||
| _, err = rw.Write(responseJSON) | ||
| if err != nil { | ||
| t.Errorf("Failed to write response: %v", err) | ||
| } | ||
| } else if r.URL.Path == "/api/v1/pods" { | ||
| responseJSON, err := json.Marshal(v1.PodList{ | ||
| TypeMeta: unversioned.TypeMeta{ | ||
| Kind: "PodList", | ||
| APIVersion: "v1", | ||
| }, | ||
| Items: []v1.Pod{ | ||
| { | ||
| Status: v1.PodStatus{ | ||
| PodIP: "10.0.0.1", | ||
| }, | ||
| ObjectMeta: v1.ObjectMeta{ | ||
| Annotations: map[string]string{ | ||
| "iam.amazonaws.com/role": "my-role", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }) | ||
| if err != nil { | ||
| t.Errorf("Failed to marshal json: %v", err) | ||
| } | ||
|
|
||
| _, err = rw.Write(responseJSON) | ||
| if err != nil { | ||
| t.Errorf("Failed to write response: %v", err) | ||
| } | ||
| } | ||
| })) | ||
| defer kubernetesService.Close() | ||
|
|
||
| metadataService := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { | ||
| if r.URL.Path == "/latest/meta-data/instance-id" { | ||
| rw.Write([]byte("instanceid")) | ||
| } | ||
| })) | ||
| defer metadataService.Close() | ||
|
|
||
| server := NewServer() | ||
| metadataURL, err := url.Parse(metadataService.URL) | ||
| if err != nil { | ||
| t.Errorf("Failed to parse metadata url: %v", err) | ||
| } | ||
| server.MetadataAddress = metadataURL.Host | ||
| server.MetadataProtection = metadataProtection | ||
|
|
||
| err = server.setup(kubernetesService.URL, "-", "", true) | ||
| if err != nil { | ||
| t.Errorf("Error starting server: %v", err) | ||
| } | ||
|
|
||
| rr := httptest.NewRecorder() | ||
| request.RemoteAddr = "10.0.0.1:80" | ||
| server.server.Handler.ServeHTTP(rr, request) | ||
| callback(rr) | ||
| } | ||
|
|
||
| func TestMetadataProtection(t *testing.T) { | ||
| t.Run("allows requests with any user-agent when metadata protection is disabled", func(tt *testing.T) { | ||
| request, err := http.NewRequest("GET", "http://127.0.0.1/latest/meta-data/iam/security-credentials", nil) | ||
| if err != nil { | ||
| tt.Errorf("Failed to make request: %v", err) | ||
| } | ||
|
|
||
| withServer(tt, false, request, func(rr *httptest.ResponseRecorder) { | ||
| if rr.Code != 200 { | ||
| tt.Errorf("Expected 200, got %d", rr.Code) | ||
| } | ||
|
|
||
| body, err := ioutil.ReadAll(rr.Body) | ||
| if err != nil { | ||
| tt.Errorf("Error reading body: %v", err) | ||
| } | ||
| if string(body) != "my-role" { | ||
| tt.Errorf("Got unexpected role") | ||
| } | ||
| }) | ||
| }) | ||
|
|
||
| t.Run("blocks requests with wrong user-agent when metadata protection is enabled", func(tt *testing.T) { | ||
| request, err := http.NewRequest("GET", "http://127.0.0.1/latest/meta-data/iam/security-credentials", nil) | ||
| if err != nil { | ||
| tt.Errorf("Failed to make request: %v", err) | ||
| } | ||
|
|
||
| withServer(tt, true, request, func(rr *httptest.ResponseRecorder) { | ||
| if rr.Code != 403 { | ||
| tt.Errorf("Expected 403, got %d", rr.Code) | ||
| } | ||
| }) | ||
| }) | ||
|
|
||
| t.Run("allows requests with the correct user-agent when metadata protection is enabled", func(tt *testing.T) { | ||
| request, err := http.NewRequest("GET", "http://127.0.0.1/latest/meta-data/iam/security-credentials", nil) | ||
| request.Header.Set("User-Agent", "aws-cli/1.0") | ||
| if err != nil { | ||
| tt.Errorf("Failed to make request: %v", err) | ||
| } | ||
|
|
||
| withServer(tt, true, request, func(rr *httptest.ResponseRecorder) { | ||
| if rr.Code != 200 { | ||
| tt.Errorf("Expected 200, got %d", rr.Code) | ||
| } | ||
|
|
||
| body, err := ioutil.ReadAll(rr.Body) | ||
| if err != nil { | ||
| tt.Errorf("Error reading body: %v", err) | ||
| } | ||
| if string(body) != "my-role" { | ||
| tt.Errorf("Got unexpected role") | ||
| } | ||
| }) | ||
| }) | ||
|
|
||
| t.Run("allows healthchecks with wrong user-agent when metadata protection is enabled", func(tt *testing.T) { | ||
| request, err := http.NewRequest("GET", "http://127.0.0.1/healthz", nil) | ||
| if err != nil { | ||
| tt.Errorf("Failed to make request: %v", err) | ||
| } | ||
|
|
||
| withServer(tt, true, request, func(rr *httptest.ResponseRecorder) { | ||
| if rr.Code != 200 { | ||
| tt.Errorf("Expected 200, got %d", rr.Code) | ||
| } | ||
|
|
||
| _, err := ioutil.ReadAll(rr.Body) | ||
| if err != nil { | ||
| tt.Errorf("Error reading body: %v", err) | ||
| } | ||
| }) | ||
| }) | ||
|
|
||
| } |