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package jwt
import (
"encoding/json"
"errors"
// "fmt"
)
// Claims type that uses the map[string]interface{} for JSON decoding
// This is the default claims type if you don't supply one
type MapClaims map[string]interface{}
// VerifyAudience Compares the aud claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyAudience(cmp string, req bool) bool {
var aud []string
switch v := m["aud"].(type) {
case string:
aud = append(aud, v)
case []string:
aud = v
case []interface{}:
for _, a := range v {
vs, ok := a.(string)
if !ok {
return false
}
aud = append(aud, vs)
}
}
return verifyAud(aud, 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 (m MapClaims) VerifyExpiresAt(cmp int64, req bool) bool {
exp, ok := m["exp"]
if !ok {
return !req
}
switch expType := exp.(type) {
case float64:
return verifyExp(int64(expType), cmp, req)
case json.Number:
v, _ := expType.Int64()
return verifyExp(v, cmp, req)
}
return false
}
// Compares the iat claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyIssuedAt(cmp int64, req bool) bool {
iat, ok := m["iat"]
if !ok {
return !req
}
switch iatType := iat.(type) {
case float64:
return verifyIat(int64(iatType), cmp, req)
case json.Number:
v, _ := iatType.Int64()
return verifyIat(v, cmp, req)
}
return false
}
// Compares the iss claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyIssuer(cmp string, req bool) bool {
iss, _ := m["iss"].(string)
return verifyIss(iss, 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 (m MapClaims) VerifyNotBefore(cmp int64, req bool) bool {
nbf, ok := m["nbf"]
if !ok {
return !req
}
switch nbfType := nbf.(type) {
case float64:
return verifyNbf(int64(nbfType), cmp, req)
case json.Number:
v, _ := nbfType.Int64()
return verifyNbf(v, cmp, req)
}
return false
}
// 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 (m MapClaims) Valid() error {
vErr := new(ValidationError)
now := TimeFunc().Unix()
if !m.VerifyExpiresAt(now, false) {
vErr.Inner = errors.New("Token is expired")
vErr.Errors |= ValidationErrorExpired
}
if !m.VerifyIssuedAt(now, false) {
vErr.Inner = errors.New("Token used before issued")
vErr.Errors |= ValidationErrorIssuedAt
}
if !m.VerifyNotBefore(now, false) {
vErr.Inner = errors.New("Token is not valid yet")
vErr.Errors |= ValidationErrorNotValidYet
}
if vErr.valid() {
return nil
}
return vErr
}
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