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package neptune
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() {
ops := []string{
opCopyDBClusterSnapshot,
opCreateDBCluster,
}
initRequest = func(r *request.Request) {
for _, operation := range ops {
if r.Operation.Name == operation {
r.Handlers.Build.PushFront(fillPresignedURL)
}
}
}
}
func fillPresignedURL(r *request.Request) {
fns := map[string]func(r *request.Request){
opCopyDBClusterSnapshot: copyDBClusterSnapshotPresign,
opCreateDBCluster: createDBClusterPresign,
}
if !r.ParamsFilled() {
return
}
if f, ok := fns[r.Operation.Name]; ok {
f(r)
}
}
func copyDBClusterSnapshotPresign(r *request.Request) {
originParams := r.Params.(*CopyDBClusterSnapshotInput)
if originParams.SourceRegion == nil || originParams.PreSignedUrl != nil || originParams.DestinationRegion != nil {
return
}
originParams.DestinationRegion = r.Config.Region
// preSignedUrl is not required for instances in the same region.
if *originParams.SourceRegion == *originParams.DestinationRegion {
return
}
newParams := awsutil.CopyOf(r.Params).(*CopyDBClusterSnapshotInput)
originParams.PreSignedUrl = presignURL(r, originParams.SourceRegion, newParams)
}
func createDBClusterPresign(r *request.Request) {
originParams := r.Params.(*CreateDBClusterInput)
if originParams.SourceRegion == nil || originParams.PreSignedUrl != nil || originParams.DestinationRegion != nil {
return
}
originParams.DestinationRegion = r.Config.Region
// preSignedUrl is not required for instances in the same region.
if *originParams.SourceRegion == *originParams.DestinationRegion {
return
}
newParams := awsutil.CopyOf(r.Params).(*CreateDBClusterInput)
originParams.PreSignedUrl = presignURL(r, originParams.SourceRegion, newParams)
}
// presignURL will presign the request by using SoureRegion to sign with. SourceRegion is not
// sent to the service, and is only used to not have the SDKs parsing ARNs.
func presignURL(r *request.Request, sourceRegion *string, newParams interface{}) *string {
cfg := r.Config.Copy(aws.NewConfig().
WithEndpoint("").
WithRegion(aws.StringValue(sourceRegion)))
clientInfo := r.ClientInfo
resolved, err := r.Config.EndpointResolver.EndpointFor(
EndpointsID, aws.StringValue(cfg.Region),
func(opt *endpoints.Options) {
opt.DisableSSL = aws.BoolValue(cfg.DisableSSL)
opt.UseDualStack = aws.BoolValue(cfg.UseDualStack)
opt.UseDualStackEndpoint = cfg.UseDualStackEndpoint
opt.UseFIPSEndpoint = cfg.UseFIPSEndpoint
opt.Logger = r.Config.Logger
opt.LogDeprecated = r.Config.LogLevel.Matches(aws.LogDebugWithDeprecated)
},
)
if err != nil {
r.Error = err
return nil
}
clientInfo.Endpoint = resolved.URL
clientInfo.SigningRegion = resolved.SigningRegion
// Presign a request with modified params
req := request.New(*cfg, clientInfo, r.Handlers, r.Retryer, r.Operation, newParams, r.Data)
req.Operation.HTTPMethod = "GET"
uri, 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 nil
}
// We have our URL, set it on params
return &uri
}