ef03b1e3df
Upgrade dependent version: github.com/open-policy-agent/opa v0.18.0 -> v0.45.0 Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io> Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>
79 lines
2.7 KiB
Go
79 lines
2.7 KiB
Go
package jwa
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import (
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"errors"
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"fmt"
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"strconv"
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)
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// SignatureAlgorithm represents the various signature algorithms as described in https://tools.ietf.org/html/rfc7518#section-3.1
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type SignatureAlgorithm string
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var signatureAlg = map[string]struct{}{"ES256": {}, "ES384": {}, "ES512": {}, "HS256": {}, "HS384": {}, "HS512": {}, "PS256": {}, "PS384": {}, "PS512": {}, "RS256": {}, "RS384": {}, "RS512": {}, "none": {}}
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// Supported values for SignatureAlgorithm
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const (
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ES256 SignatureAlgorithm = "ES256" // ECDSA using P-256 and SHA-256
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ES384 SignatureAlgorithm = "ES384" // ECDSA using P-384 and SHA-384
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ES512 SignatureAlgorithm = "ES512" // ECDSA using P-521 and SHA-512
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HS256 SignatureAlgorithm = "HS256" // HMAC using SHA-256
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HS384 SignatureAlgorithm = "HS384" // HMAC using SHA-384
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HS512 SignatureAlgorithm = "HS512" // HMAC using SHA-512
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NoSignature SignatureAlgorithm = "none"
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PS256 SignatureAlgorithm = "PS256" // RSASSA-PSS using SHA256 and MGF1-SHA256
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PS384 SignatureAlgorithm = "PS384" // RSASSA-PSS using SHA384 and MGF1-SHA384
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PS512 SignatureAlgorithm = "PS512" // RSASSA-PSS using SHA512 and MGF1-SHA512
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RS256 SignatureAlgorithm = "RS256" // RSASSA-PKCS-v1.5 using SHA-256
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RS384 SignatureAlgorithm = "RS384" // RSASSA-PKCS-v1.5 using SHA-384
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RS512 SignatureAlgorithm = "RS512" // RSASSA-PKCS-v1.5 using SHA-512
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NoValue SignatureAlgorithm = "" // No value is different from none
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Unsupported SignatureAlgorithm = "unsupported"
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)
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// Accept is used when conversion from values given by
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// outside sources (such as JSON payloads) is required
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func (signature *SignatureAlgorithm) Accept(value interface{}) error {
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var tmp SignatureAlgorithm
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switch x := value.(type) {
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case string:
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tmp = SignatureAlgorithm(x)
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case SignatureAlgorithm:
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tmp = x
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default:
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return fmt.Errorf("invalid type for jwa.SignatureAlgorithm: %T", value)
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}
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_, ok := signatureAlg[tmp.String()]
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if !ok {
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return errors.New("unknown signature algorithm")
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}
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*signature = tmp
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return nil
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}
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// String returns the string representation of a SignatureAlgorithm
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func (signature SignatureAlgorithm) String() string {
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return string(signature)
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}
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// UnmarshalJSON unmarshals and checks data as Signature Algorithm
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func (signature *SignatureAlgorithm) UnmarshalJSON(data []byte) error {
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var quote byte = '"'
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var quoted string
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if data[0] == quote {
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var err error
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quoted, err = strconv.Unquote(string(data))
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if err != nil {
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return fmt.Errorf("failed to process signature algorithm: %w", err)
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}
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} else {
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quoted = string(data)
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}
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_, ok := signatureAlg[quoted]
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if !ok {
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*signature = Unsupported
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return nil
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}
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*signature = SignatureAlgorithm(quoted)
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return nil
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}
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