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author | Wim <wim@42.be> | 2021-10-17 00:47:22 +0200 |
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committer | GitHub <noreply@github.com> | 2021-10-17 00:47:22 +0200 |
commit | 4dd8bae5c91fa4aef09d865d8fef1acd84f90925 (patch) | |
tree | ffad9b242daccaf8c86d1c1fbd59032302bd3be9 /vendor/github.com/golang-jwt/jwt/claims.go | |
parent | 7ae45c42e712bd0e66c101f3f714c05aa1dc2104 (diff) | |
download | matterbridge-msglm-4dd8bae5c91fa4aef09d865d8fef1acd84f90925.tar.gz matterbridge-msglm-4dd8bae5c91fa4aef09d865d8fef1acd84f90925.tar.bz2 matterbridge-msglm-4dd8bae5c91fa4aef09d865d8fef1acd84f90925.zip |
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.go | 146 |
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 +} |