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|
package presignedurl
import (
"context"
"fmt"
"net/http"
"reflect"
"strings"
"testing"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
v4 "github.com/aws/aws-sdk-go-v2/aws/signer/v4"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
func TestPresignMiddleware(t *testing.T) {
cases := map[string]struct {
Input *mockURLPresignInput
ExpectInput *mockURLPresignInput
ExpectErr string
}{
"no source": {
Input: &mockURLPresignInput{},
ExpectInput: &mockURLPresignInput{},
},
"with presigned URL": {
Input: &mockURLPresignInput{
SourceRegion: "source-region",
PresignedURL: "https://example.amazonaws.com/someURL",
},
ExpectInput: &mockURLPresignInput{
SourceRegion: "source-region",
PresignedURL: "https://example.amazonaws.com/someURL",
},
},
"with source": {
Input: &mockURLPresignInput{
SourceRegion: "source-region",
},
ExpectInput: &mockURLPresignInput{
SourceRegion: "source-region",
PresignedURL: "https://example.source-region.amazonaws.com/?DestinationRegion=mock-region",
},
},
"matching source destination region": {
Input: &mockURLPresignInput{
SourceRegion: "mock-region",
},
ExpectInput: &mockURLPresignInput{
SourceRegion: "mock-region",
PresignedURL: "https://example.mock-region.amazonaws.com/?DestinationRegion=mock-region",
},
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
stack := middleware.NewStack(name, smithyhttp.NewStackRequest)
stack.Initialize.Add(&awsmiddleware.RegisterServiceMetadata{
Region: "mock-region",
}, middleware.After)
stack.Initialize.Add(&presign{options: getURLPresignMiddlewareOptions()}, middleware.After)
stack.Initialize.Add(middleware.InitializeMiddlewareFunc(name+"_verifyParams",
func(ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler) (
out middleware.InitializeOutput, metadata middleware.Metadata, err error,
) {
input := in.Parameters.(*mockURLPresignInput)
if diff := cmpDiff(c.ExpectInput, input); len(diff) != 0 {
t.Errorf("expect input to be updated\n%s", diff)
}
return next.HandleInitialize(ctx, in)
},
), middleware.After)
handler := middleware.DecorateHandler(smithyhttp.NewClientHandler(smithyhttp.NopClient{}), stack)
_, _, err := handler.Handle(context.Background(), c.Input)
if len(c.ExpectErr) != 0 {
if err == nil {
t.Fatalf("expect error, got none")
}
if e, a := c.ExpectErr, err.Error(); !strings.Contains(a, e) {
t.Fatalf("expect error to contain %v, got %v", e, a)
}
return
}
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
})
}
}
func getURLPresignMiddlewareOptions() Options {
return Options{
Accessor: ParameterAccessor{
GetPresignedURL: func(c interface{}) (string, bool, error) {
presignURL := c.(*mockURLPresignInput).PresignedURL
if len(presignURL) != 0 {
return presignURL, true, nil
}
return "", false, nil
},
GetSourceRegion: func(c interface{}) (string, bool, error) {
srcRegion := c.(*mockURLPresignInput).SourceRegion
if len(srcRegion) != 0 {
return srcRegion, true, nil
}
return "", false, nil
},
CopyInput: func(c interface{}) (interface{}, error) {
input := *(c.(*mockURLPresignInput))
return &input, nil
},
SetDestinationRegion: func(c interface{}, v string) error {
c.(*mockURLPresignInput).DestinationRegion = v
return nil
},
SetPresignedURL: func(c interface{}, v string) error {
c.(*mockURLPresignInput).PresignedURL = v
return nil
},
},
Presigner: &mockURLPresigner{},
}
}
type mockURLPresignInput struct {
SourceRegion string
DestinationRegion string
PresignedURL string
}
type mockURLPresigner struct{}
func (*mockURLPresigner) PresignURL(ctx context.Context, srcRegion string, params interface{}) (
req *v4.PresignedHTTPRequest, err error,
) {
in := params.(*mockURLPresignInput)
return &v4.PresignedHTTPRequest{
URL: "https://example." + srcRegion + ".amazonaws.com/?DestinationRegion=" + in.DestinationRegion,
Method: "GET",
SignedHeader: http.Header{},
}, nil
}
func cmpDiff(e, a interface{}) string {
if !reflect.DeepEqual(e, a) {
return fmt.Sprintf("%v != %v", e, a)
}
return ""
}
|
