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ceph-csi/vendor/github.com/aws/smithy-go/encoding/xml/encoder.go
Rakshith R 4f0bb2315b rbd: add aws-sts-metdata encryption type
With Amazon STS and kubernetes cluster is configured with
OIDC identity provider, credentials to access Amazon KMS
can be fetched using oidc-token(serviceaccount token).
Each tenant/namespace needs to create a secret with aws region,
role and CMK ARN.
Ceph-CSI will assume the given role with oidc token and access
aws KMS, with given CMK to encrypt/decrypt DEK which will stored
in the image metdata.

Refer: https://docs.aws.amazon.com/STS/latest/APIReference/welcome.html
Resolves: 

Signed-off-by: Rakshith R <rar@redhat.com>
2022-03-16 07:29:56 +00:00

52 lines
1.3 KiB
Go

package xml
// writer interface used by the xml encoder to write an encoded xml
// document in a writer.
type writer interface {
// Write takes in a byte slice and returns number of bytes written and error
Write(p []byte) (n int, err error)
// WriteRune takes in a rune and returns number of bytes written and error
WriteRune(r rune) (n int, err error)
// WriteString takes in a string and returns number of bytes written and error
WriteString(s string) (n int, err error)
// String method returns a string
String() string
// Bytes return a byte slice.
Bytes() []byte
}
// Encoder is an XML encoder that supports construction of XML values
// using methods. The encoder takes in a writer and maintains a scratch buffer.
type Encoder struct {
w writer
scratch *[]byte
}
// NewEncoder returns an XML encoder
func NewEncoder(w writer) *Encoder {
scratch := make([]byte, 64)
return &Encoder{w: w, scratch: &scratch}
}
// String returns the string output of the XML encoder
func (e Encoder) String() string {
return e.w.String()
}
// Bytes returns the []byte slice of the XML encoder
func (e Encoder) Bytes() []byte {
return e.w.Bytes()
}
// RootElement builds a root element encoding
// It writes it's start element tag. The value should be closed.
func (e Encoder) RootElement(element StartElement) Value {
return newValue(e.w, e.scratch, element)
}