João Oliveirinha
1 year ago
committed by
Nuno Diegues
parent
1b511b2d25
commit
9422ea8ed8
@ -1,202 +0,0 @@
|
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Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction,
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@ -1,5 +0,0 @@
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CoreOS Project
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Copyright 2014 CoreOS, Inc
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This product includes software developed at CoreOS, Inc.
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(http://www.coreos.com/).
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@ -1,126 +0,0 @@
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package jose
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import (
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"encoding/json"
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"fmt"
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"math"
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"time"
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)
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type Claims map[string]interface{}
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func (c Claims) Add(name string, value interface{}) {
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c[name] = value
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}
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func (c Claims) StringClaim(name string) (string, bool, error) {
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cl, ok := c[name]
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if !ok {
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return "", false, nil
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}
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v, ok := cl.(string)
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if !ok {
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return "", false, fmt.Errorf("unable to parse claim as string: %v", name)
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}
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return v, true, nil
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||||
}
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func (c Claims) StringsClaim(name string) ([]string, bool, error) {
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cl, ok := c[name]
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||||
if !ok {
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return nil, false, nil
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}
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if v, ok := cl.([]string); ok {
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||||
return v, true, nil
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||||
}
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// When unmarshaled, []string will become []interface{}.
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if v, ok := cl.([]interface{}); ok {
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var ret []string
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for _, vv := range v {
|
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str, ok := vv.(string)
|
||||
if !ok {
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return nil, false, fmt.Errorf("unable to parse claim as string array: %v", name)
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||||
}
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ret = append(ret, str)
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||||
}
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return ret, true, nil
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}
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return nil, false, fmt.Errorf("unable to parse claim as string array: %v", name)
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}
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func (c Claims) Int64Claim(name string) (int64, bool, error) {
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cl, ok := c[name]
|
||||
if !ok {
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return 0, false, nil
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}
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|
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v, ok := cl.(int64)
|
||||
if !ok {
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vf, ok := cl.(float64)
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if !ok {
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return 0, false, fmt.Errorf("unable to parse claim as int64: %v", name)
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}
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v = int64(vf)
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}
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return v, true, nil
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||||
}
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func (c Claims) Float64Claim(name string) (float64, bool, error) {
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cl, ok := c[name]
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||||
if !ok {
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return 0, false, nil
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}
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v, ok := cl.(float64)
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if !ok {
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vi, ok := cl.(int64)
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if !ok {
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return 0, false, fmt.Errorf("unable to parse claim as float64: %v", name)
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}
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v = float64(vi)
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}
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return v, true, nil
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}
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func (c Claims) TimeClaim(name string) (time.Time, bool, error) {
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v, ok, err := c.Float64Claim(name)
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if !ok || err != nil {
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return time.Time{}, ok, err
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}
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s := math.Trunc(v)
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ns := (v - s) * math.Pow(10, 9)
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return time.Unix(int64(s), int64(ns)).UTC(), true, nil
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}
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func decodeClaims(payload []byte) (Claims, error) {
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var c Claims
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if err := json.Unmarshal(payload, &c); err != nil {
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return nil, fmt.Errorf("malformed JWT claims, unable to decode: %v", err)
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}
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return c, nil
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}
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func marshalClaims(c Claims) ([]byte, error) {
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b, err := json.Marshal(c)
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if err != nil {
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return nil, err
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||||
}
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return b, nil
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||||
}
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func encodeClaims(c Claims) (string, error) {
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b, err := marshalClaims(c)
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if err != nil {
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return "", err
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}
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return encodeSegment(b), nil
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}
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@ -1,2 +0,0 @@
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// Package jose is DEPRECATED. Use gopkg.in/square/go-jose.v2 instead.
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package jose
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@ -1,112 +0,0 @@
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package jose
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"strings"
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)
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const (
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HeaderMediaType = "typ"
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HeaderKeyAlgorithm = "alg"
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HeaderKeyID = "kid"
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)
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const (
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// Encryption Algorithm Header Parameter Values for JWS
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// See: https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40#page-6
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AlgHS256 = "HS256"
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AlgHS384 = "HS384"
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AlgHS512 = "HS512"
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AlgRS256 = "RS256"
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AlgRS384 = "RS384"
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AlgRS512 = "RS512"
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AlgES256 = "ES256"
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AlgES384 = "ES384"
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AlgES512 = "ES512"
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AlgPS256 = "PS256"
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||||
AlgPS384 = "PS384"
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AlgPS512 = "PS512"
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AlgNone = "none"
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)
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const (
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// Algorithm Header Parameter Values for JWE
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// See: https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40#section-4.1
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AlgRSA15 = "RSA1_5"
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AlgRSAOAEP = "RSA-OAEP"
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AlgRSAOAEP256 = "RSA-OAEP-256"
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AlgA128KW = "A128KW"
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AlgA192KW = "A192KW"
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AlgA256KW = "A256KW"
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AlgDir = "dir"
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||||
AlgECDHES = "ECDH-ES"
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AlgECDHESA128KW = "ECDH-ES+A128KW"
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AlgECDHESA192KW = "ECDH-ES+A192KW"
|
||||
AlgECDHESA256KW = "ECDH-ES+A256KW"
|
||||
AlgA128GCMKW = "A128GCMKW"
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AlgA192GCMKW = "A192GCMKW"
|
||||
AlgA256GCMKW = "A256GCMKW"
|
||||
AlgPBES2HS256A128KW = "PBES2-HS256+A128KW"
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||||
AlgPBES2HS384A192KW = "PBES2-HS384+A192KW"
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||||
AlgPBES2HS512A256KW = "PBES2-HS512+A256KW"
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)
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const (
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// Encryption Algorithm Header Parameter Values for JWE
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||||
// See: https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40#page-22
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||||
EncA128CBCHS256 = "A128CBC-HS256"
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||||
EncA128CBCHS384 = "A128CBC-HS384"
|
||||
EncA256CBCHS512 = "A256CBC-HS512"
|
||||
EncA128GCM = "A128GCM"
|
||||
EncA192GCM = "A192GCM"
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||||
EncA256GCM = "A256GCM"
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||||
)
|
||||
|
||||
type JOSEHeader map[string]string
|
||||
|
||||
func (j JOSEHeader) Validate() error {
|
||||
if _, exists := j[HeaderKeyAlgorithm]; !exists {
|
||||
return fmt.Errorf("header missing %q parameter", HeaderKeyAlgorithm)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func decodeHeader(seg string) (JOSEHeader, error) {
|
||||
b, err := decodeSegment(seg)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var h JOSEHeader
|
||||
err = json.Unmarshal(b, &h)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return h, nil
|
||||
}
|
||||
|
||||
func encodeHeader(h JOSEHeader) (string, error) {
|
||||
b, err := json.Marshal(h)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return encodeSegment(b), nil
|
||||
}
|
||||
|
||||
// Decode JWT specific base64url encoding with padding stripped
|
||||
func decodeSegment(seg string) ([]byte, error) {
|
||||
if l := len(seg) % 4; l != 0 {
|
||||
seg += strings.Repeat("=", 4-l)
|
||||
}
|
||||
return base64.URLEncoding.DecodeString(seg)
|
||||
}
|
||||
|
||||
// Encode JWT specific base64url encoding with padding stripped
|
||||
func encodeSegment(seg []byte) string {
|
||||
return strings.TrimRight(base64.URLEncoding.EncodeToString(seg), "=")
|
||||
}
|
||||
@ -1,135 +0,0 @@
|
||||
package jose
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/base64"
|
||||
"encoding/binary"
|
||||
"encoding/json"
|
||||
"math/big"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// JSON Web Key
|
||||
// https://tools.ietf.org/html/draft-ietf-jose-json-web-key-36#page-5
|
||||
type JWK struct {
|
||||
ID string
|
||||
Type string
|
||||
Alg string
|
||||
Use string
|
||||
Exponent int
|
||||
Modulus *big.Int
|
||||
Secret []byte
|
||||
}
|
||||
|
||||
type jwkJSON struct {
|
||||
ID string `json:"kid"`
|
||||
Type string `json:"kty"`
|
||||
Alg string `json:"alg"`
|
||||
Use string `json:"use"`
|
||||
Exponent string `json:"e"`
|
||||
Modulus string `json:"n"`
|
||||
}
|
||||
|
||||
func (j *JWK) MarshalJSON() ([]byte, error) {
|
||||
t := jwkJSON{
|
||||
ID: j.ID,
|
||||
Type: j.Type,
|
||||
Alg: j.Alg,
|
||||
Use: j.Use,
|
||||
Exponent: encodeExponent(j.Exponent),
|
||||
Modulus: encodeModulus(j.Modulus),
|
||||
}
|
||||
|
||||
return json.Marshal(&t)
|
||||
}
|
||||
|
||||
func (j *JWK) UnmarshalJSON(data []byte) error {
|
||||
var t jwkJSON
|
||||
err := json.Unmarshal(data, &t)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
e, err := decodeExponent(t.Exponent)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
n, err := decodeModulus(t.Modulus)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
j.ID = t.ID
|
||||
j.Type = t.Type
|
||||
j.Alg = t.Alg
|
||||
j.Use = t.Use
|
||||
j.Exponent = e
|
||||
j.Modulus = n
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
type JWKSet struct {
|
||||
Keys []JWK `json:"keys"`
|
||||
}
|
||||
|
||||
func decodeExponent(e string) (int, error) {
|
||||
decE, err := decodeBase64URLPaddingOptional(e)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
var eBytes []byte
|
||||
if len(decE) < 8 {
|
||||
eBytes = make([]byte, 8-len(decE), 8)
|
||||
eBytes = append(eBytes, decE...)
|
||||
} else {
|
||||
eBytes = decE
|
||||
}
|
||||
eReader := bytes.NewReader(eBytes)
|
||||
var E uint64
|
||||
err = binary.Read(eReader, binary.BigEndian, &E)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return int(E), nil
|
||||
}
|
||||
|
||||
func encodeExponent(e int) string {
|
||||
b := make([]byte, 8)
|
||||
binary.BigEndian.PutUint64(b, uint64(e))
|
||||
var idx int
|
||||
for ; idx < 8; idx++ {
|
||||
if b[idx] != 0x0 {
|
||||
break
|
||||
}
|
||||
}
|
||||
return base64.RawURLEncoding.EncodeToString(b[idx:])
|
||||
}
|
||||
|
||||
// Turns a URL encoded modulus of a key into a big int.
|
||||
func decodeModulus(n string) (*big.Int, error) {
|
||||
decN, err := decodeBase64URLPaddingOptional(n)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
N := big.NewInt(0)
|
||||
N.SetBytes(decN)
|
||||
return N, nil
|
||||
}
|
||||
|
||||
func encodeModulus(n *big.Int) string {
|
||||
return base64.RawURLEncoding.EncodeToString(n.Bytes())
|
||||
}
|
||||
|
||||
// decodeBase64URLPaddingOptional decodes Base64 whether there is padding or not.
|
||||
// The stdlib version currently doesn't handle this.
|
||||
// We can get rid of this is if this bug:
|
||||
// https://github.com/golang/go/issues/4237
|
||||
// ever closes.
|
||||
func decodeBase64URLPaddingOptional(e string) ([]byte, error) {
|
||||
if m := len(e) % 4; m != 0 {
|
||||
e += strings.Repeat("=", 4-m)
|
||||
}
|
||||
return base64.URLEncoding.DecodeString(e)
|
||||
}
|
||||
@ -1,51 +0,0 @@
|
||||
package jose
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type JWS struct {
|
||||
RawHeader string
|
||||
Header JOSEHeader
|
||||
RawPayload string
|
||||
Payload []byte
|
||||
Signature []byte
|
||||
}
|
||||
|
||||
// Given a raw encoded JWS token parses it and verifies the structure.
|
||||
func ParseJWS(raw string) (JWS, error) {
|
||||
parts := strings.Split(raw, ".")
|
||||
if len(parts) != 3 {
|
||||
return JWS{}, fmt.Errorf("malformed JWS, only %d segments", len(parts))
|
||||
}
|
||||
|
||||
rawSig := parts[2]
|
||||
jws := JWS{
|
||||
RawHeader: parts[0],
|
||||
RawPayload: parts[1],
|
||||
}
|
||||
|
||||
header, err := decodeHeader(jws.RawHeader)
|
||||
if err != nil {
|
||||
return JWS{}, fmt.Errorf("malformed JWS, unable to decode header, %s", err)
|
||||
}
|
||||
if err = header.Validate(); err != nil {
|
||||
return JWS{}, fmt.Errorf("malformed JWS, %s", err)
|
||||
}
|
||||
jws.Header = header
|
||||
|
||||
payload, err := decodeSegment(jws.RawPayload)
|
||||
if err != nil {
|
||||
return JWS{}, fmt.Errorf("malformed JWS, unable to decode payload: %s", err)
|
||||
}
|
||||
jws.Payload = payload
|
||||
|
||||
sig, err := decodeSegment(rawSig)
|
||||
if err != nil {
|
||||
return JWS{}, fmt.Errorf("malformed JWS, unable to decode signature: %s", err)
|
||||
}
|
||||
jws.Signature = sig
|
||||
|
||||
return jws, nil
|
||||
}
|
||||
@ -1,82 +0,0 @@
|
||||
package jose
|
||||
|
||||
import "strings"
|
||||
|
||||
type JWT JWS
|
||||
|
||||
func ParseJWT(token string) (jwt JWT, err error) {
|
||||
jws, err := ParseJWS(token)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
return JWT(jws), nil
|
||||
}
|
||||
|
||||
func NewJWT(header JOSEHeader, claims Claims) (jwt JWT, err error) {
|
||||
jwt = JWT{}
|
||||
|
||||
jwt.Header = header
|
||||
jwt.Header[HeaderMediaType] = "JWT"
|
||||
|
||||
claimBytes, err := marshalClaims(claims)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
jwt.Payload = claimBytes
|
||||
|
||||
eh, err := encodeHeader(header)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
jwt.RawHeader = eh
|
||||
|
||||
ec, err := encodeClaims(claims)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
jwt.RawPayload = ec
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func (j *JWT) KeyID() (string, bool) {
|
||||
kID, ok := j.Header[HeaderKeyID]
|
||||
return kID, ok
|
||||
}
|
||||
|
||||
func (j *JWT) Claims() (Claims, error) {
|
||||
return decodeClaims(j.Payload)
|
||||
}
|
||||
|
||||
// Encoded data part of the token which may be signed.
|
||||
func (j *JWT) Data() string {
|
||||
return strings.Join([]string{j.RawHeader, j.RawPayload}, ".")
|
||||
}
|
||||
|
||||
// Full encoded JWT token string in format: header.claims.signature
|
||||
func (j *JWT) Encode() string {
|
||||
d := j.Data()
|
||||
s := encodeSegment(j.Signature)
|
||||
return strings.Join([]string{d, s}, ".")
|
||||
}
|
||||
|
||||
func NewSignedJWT(claims Claims, s Signer) (*JWT, error) {
|
||||
header := JOSEHeader{
|
||||
HeaderKeyAlgorithm: s.Alg(),
|
||||
HeaderKeyID: s.ID(),
|
||||
}
|
||||
|
||||
jwt, err := NewJWT(header, claims)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
sig, err := s.Sign([]byte(jwt.Data()))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
jwt.Signature = sig
|
||||
|
||||
return &jwt, nil
|
||||
}
|
||||
@ -1,24 +0,0 @@
|
||||
package jose
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type Verifier interface {
|
||||
ID() string
|
||||
Alg() string
|
||||
Verify(sig []byte, data []byte) error
|
||||
}
|
||||
|
||||
type Signer interface {
|
||||
Verifier
|
||||
Sign(data []byte) (sig []byte, err error)
|
||||
}
|
||||
|
||||
func NewVerifier(jwk JWK) (Verifier, error) {
|
||||
if jwk.Type != "RSA" {
|
||||
return nil, fmt.Errorf("unsupported key type %q", jwk.Type)
|
||||
}
|
||||
|
||||
return NewVerifierRSA(jwk)
|
||||
}
|
||||
@ -1,67 +0,0 @@
|
||||
package jose
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
"crypto/rand"
|
||||
"crypto/rsa"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type VerifierRSA struct {
|
||||
KeyID string
|
||||
Hash crypto.Hash
|
||||
PublicKey rsa.PublicKey
|
||||
}
|
||||
|
||||
type SignerRSA struct {
|
||||
PrivateKey rsa.PrivateKey
|
||||
VerifierRSA
|
||||
}
|
||||
|
||||
func NewVerifierRSA(jwk JWK) (*VerifierRSA, error) {
|
||||
if jwk.Alg != "" && jwk.Alg != "RS256" {
|
||||
return nil, fmt.Errorf("unsupported key algorithm %q", jwk.Alg)
|
||||
}
|
||||
|
||||
v := VerifierRSA{
|
||||
KeyID: jwk.ID,
|
||||
PublicKey: rsa.PublicKey{
|
||||
N: jwk.Modulus,
|
||||
E: jwk.Exponent,
|
||||
},
|
||||
Hash: crypto.SHA256,
|
||||
}
|
||||
|
||||
return &v, nil
|
||||
}
|
||||
|
||||
func NewSignerRSA(kid string, key rsa.PrivateKey) *SignerRSA {
|
||||
return &SignerRSA{
|
||||
PrivateKey: key,
|
||||
VerifierRSA: VerifierRSA{
|
||||
KeyID: kid,
|
||||
PublicKey: key.PublicKey,
|
||||
Hash: crypto.SHA256,
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func (v *VerifierRSA) ID() string {
|
||||
return v.KeyID
|
||||
}
|
||||
|
||||
func (v *VerifierRSA) Alg() string {
|
||||
return "RS256"
|
||||
}
|
||||
|
||||
func (v *VerifierRSA) Verify(sig []byte, data []byte) error {
|
||||
h := v.Hash.New()
|
||||
h.Write(data)
|
||||
return rsa.VerifyPKCS1v15(&v.PublicKey, v.Hash, h.Sum(nil), sig)
|
||||
}
|
||||
|
||||
func (s *SignerRSA) Sign(data []byte) ([]byte, error) {
|
||||
h := s.Hash.New()
|
||||
h.Write(data)
|
||||
return rsa.SignPKCS1v15(rand.Reader, &s.PrivateKey, s.Hash, h.Sum(nil))
|
||||
}
|
||||