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vendor/github.com/aws/aws-sdk-go/service/ec2/customizations.go

@@ -0,0 +1,67 @@
+package ec2
+
+import (
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awsutil"
+	"github.com/aws/aws-sdk-go/aws/endpoints"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+func init() {
+	initRequest = func(r *request.Request) {
+		if r.Operation.Name == opCopySnapshot { // fill the PresignedURL parameter
+			r.Handlers.Build.PushFront(fillPresignedURL)
+		}
+	}
+}
+
+func fillPresignedURL(r *request.Request) {
+	if !r.ParamsFilled() {
+		return
+	}
+
+	origParams := r.Params.(*CopySnapshotInput)
+
+	// Stop if PresignedURL/DestinationRegion is set
+	if origParams.PresignedUrl != nil || origParams.DestinationRegion != nil {
+		return
+	}
+
+	origParams.DestinationRegion = r.Config.Region
+	newParams := awsutil.CopyOf(r.Params).(*CopySnapshotInput)
+
+	// Create a new request based on the existing request. We will use this to
+	// presign the CopySnapshot request against the source region.
+	cfg := r.Config.Copy(aws.NewConfig().
+		WithEndpoint("").
+		WithRegion(aws.StringValue(origParams.SourceRegion)))
+
+	clientInfo := r.ClientInfo
+	resolved, err := r.Config.EndpointResolver.EndpointFor(
+		clientInfo.ServiceName, aws.StringValue(cfg.Region),
+		func(opt *endpoints.Options) {
+			opt.DisableSSL = aws.BoolValue(cfg.DisableSSL)
+			opt.UseDualStack = aws.BoolValue(cfg.UseDualStack)
+		},
+	)
+	if err != nil {
+		r.Error = err
+		return
+	}
+
+	clientInfo.Endpoint = resolved.URL
+	clientInfo.SigningRegion = resolved.SigningRegion
+
+	// Presign a CopySnapshot request with modified params
+	req := request.New(*cfg, clientInfo, r.Handlers, r.Retryer, r.Operation, newParams, r.Data)
+	url, err := req.Presign(5 * time.Minute) // 5 minutes should be enough.
+	if err != nil {                          // bubble error back up to original request
+		r.Error = err
+		return
+	}
+
+	// We have our URL, set it on params
+	origParams.PresignedUrl = &url
+}