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authorWim <wim@42.be>2021-10-17 00:47:22 +0200
committerGitHub <noreply@github.com>2021-10-17 00:47:22 +0200
commit4dd8bae5c91fa4aef09d865d8fef1acd84f90925 (patch)
treeffad9b242daccaf8c86d1c1fbd59032302bd3be9 /vendor/github.com/golang-jwt/jwt/claims.go
parent7ae45c42e712bd0e66c101f3f714c05aa1dc2104 (diff)
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Update dependencies (#1610)
* Update dependencies * Update module to go 1.17
Diffstat (limited to 'vendor/github.com/golang-jwt/jwt/claims.go')
-rw-r--r--vendor/github.com/golang-jwt/jwt/claims.go146
1 files changed, 146 insertions, 0 deletions
diff --git a/vendor/github.com/golang-jwt/jwt/claims.go b/vendor/github.com/golang-jwt/jwt/claims.go
new file mode 100644
index 00000000..f1dba3cb
--- /dev/null
+++ b/vendor/github.com/golang-jwt/jwt/claims.go
@@ -0,0 +1,146 @@
+package jwt
+
+import (
+ "crypto/subtle"
+ "fmt"
+ "time"
+)
+
+// For a type to be a Claims object, it must just have a Valid method that determines
+// if the token is invalid for any supported reason
+type Claims interface {
+ Valid() error
+}
+
+// Structured version of Claims Section, as referenced at
+// https://tools.ietf.org/html/rfc7519#section-4.1
+// See examples for how to use this with your own claim types
+type StandardClaims struct {
+ Audience string `json:"aud,omitempty"`
+ ExpiresAt int64 `json:"exp,omitempty"`
+ Id string `json:"jti,omitempty"`
+ IssuedAt int64 `json:"iat,omitempty"`
+ Issuer string `json:"iss,omitempty"`
+ NotBefore int64 `json:"nbf,omitempty"`
+ Subject string `json:"sub,omitempty"`
+}
+
+// Validates time based claims "exp, iat, nbf".
+// There is no accounting for clock skew.
+// As well, if any of the above claims are not in the token, it will still
+// be considered a valid claim.
+func (c StandardClaims) Valid() error {
+ vErr := new(ValidationError)
+ now := TimeFunc().Unix()
+
+ // The claims below are optional, by default, so if they are set to the
+ // default value in Go, let's not fail the verification for them.
+ if !c.VerifyExpiresAt(now, false) {
+ delta := time.Unix(now, 0).Sub(time.Unix(c.ExpiresAt, 0))
+ vErr.Inner = fmt.Errorf("token is expired by %v", delta)
+ vErr.Errors |= ValidationErrorExpired
+ }
+
+ if !c.VerifyIssuedAt(now, false) {
+ vErr.Inner = fmt.Errorf("Token used before issued")
+ vErr.Errors |= ValidationErrorIssuedAt
+ }
+
+ if !c.VerifyNotBefore(now, false) {
+ vErr.Inner = fmt.Errorf("token is not valid yet")
+ vErr.Errors |= ValidationErrorNotValidYet
+ }
+
+ if vErr.valid() {
+ return nil
+ }
+
+ return vErr
+}
+
+// Compares the aud claim against cmp.
+// If required is false, this method will return true if the value matches or is unset
+func (c *StandardClaims) VerifyAudience(cmp string, req bool) bool {
+ return verifyAud([]string{c.Audience}, cmp, req)
+}
+
+// Compares the exp claim against cmp.
+// If required is false, this method will return true if the value matches or is unset
+func (c *StandardClaims) VerifyExpiresAt(cmp int64, req bool) bool {
+ return verifyExp(c.ExpiresAt, cmp, req)
+}
+
+// Compares the iat claim against cmp.
+// If required is false, this method will return true if the value matches or is unset
+func (c *StandardClaims) VerifyIssuedAt(cmp int64, req bool) bool {
+ return verifyIat(c.IssuedAt, cmp, req)
+}
+
+// Compares the iss claim against cmp.
+// If required is false, this method will return true if the value matches or is unset
+func (c *StandardClaims) VerifyIssuer(cmp string, req bool) bool {
+ return verifyIss(c.Issuer, cmp, req)
+}
+
+// Compares the nbf claim against cmp.
+// If required is false, this method will return true if the value matches or is unset
+func (c *StandardClaims) VerifyNotBefore(cmp int64, req bool) bool {
+ return verifyNbf(c.NotBefore, cmp, req)
+}
+
+// ----- helpers
+
+func verifyAud(aud []string, cmp string, required bool) bool {
+ if len(aud) == 0 {
+ return !required
+ }
+ // use a var here to keep constant time compare when looping over a number of claims
+ result := false
+
+ var stringClaims string
+ for _, a := range aud {
+ if subtle.ConstantTimeCompare([]byte(a), []byte(cmp)) != 0 {
+ result = true
+ }
+ stringClaims = stringClaims + a
+ }
+
+ // case where "" is sent in one or many aud claims
+ if len(stringClaims) == 0 {
+ return !required
+ }
+
+ return result
+}
+
+func verifyExp(exp int64, now int64, required bool) bool {
+ if exp == 0 {
+ return !required
+ }
+ return now <= exp
+}
+
+func verifyIat(iat int64, now int64, required bool) bool {
+ if iat == 0 {
+ return !required
+ }
+ return now >= iat
+}
+
+func verifyIss(iss string, cmp string, required bool) bool {
+ if iss == "" {
+ return !required
+ }
+ if subtle.ConstantTimeCompare([]byte(iss), []byte(cmp)) != 0 {
+ return true
+ } else {
+ return false
+ }
+}
+
+func verifyNbf(nbf int64, now int64, required bool) bool {
+ if nbf == 0 {
+ return !required
+ }
+ return now >= nbf
+}