152 lines
3.6 KiB
Go
152 lines
3.6 KiB
Go
package jwt
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import (
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"encoding/json"
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"errors"
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"time"
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// "fmt"
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)
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// MapClaims is a claims type that uses the map[string]interface{} for JSON decoding.
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// This is the default claims type if you don't supply one
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type MapClaims map[string]interface{}
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// VerifyAudience Compares the aud claim against cmp.
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// If required is false, this method will return true if the value matches or is unset
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func (m MapClaims) VerifyAudience(cmp string, req bool) bool {
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var aud []string
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switch v := m["aud"].(type) {
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case string:
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aud = append(aud, v)
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case []string:
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aud = v
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case []interface{}:
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for _, a := range v {
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vs, ok := a.(string)
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if !ok {
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return false
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}
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aud = append(aud, vs)
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}
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}
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return verifyAud(aud, cmp, req)
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}
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// VerifyExpiresAt compares the exp claim against cmp (cmp <= exp).
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// If req is false, it will return true, if exp is unset.
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func (m MapClaims) VerifyExpiresAt(cmp int64, req bool) bool {
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cmpTime := time.Unix(cmp, 0)
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v, ok := m["exp"]
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if !ok {
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return !req
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}
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switch exp := v.(type) {
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case float64:
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if exp == 0 {
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return verifyExp(nil, cmpTime, req)
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}
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return verifyExp(&newNumericDateFromSeconds(exp).Time, cmpTime, req)
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case json.Number:
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v, _ := exp.Float64()
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return verifyExp(&newNumericDateFromSeconds(v).Time, cmpTime, req)
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}
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return false
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}
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// VerifyIssuedAt compares the exp claim against cmp (cmp >= iat).
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// If req is false, it will return true, if iat is unset.
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func (m MapClaims) VerifyIssuedAt(cmp int64, req bool) bool {
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cmpTime := time.Unix(cmp, 0)
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v, ok := m["iat"]
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if !ok {
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return !req
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}
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switch iat := v.(type) {
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case float64:
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if iat == 0 {
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return verifyIat(nil, cmpTime, req)
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}
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return verifyIat(&newNumericDateFromSeconds(iat).Time, cmpTime, req)
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case json.Number:
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v, _ := iat.Float64()
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return verifyIat(&newNumericDateFromSeconds(v).Time, cmpTime, req)
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}
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return false
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}
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// VerifyNotBefore compares the nbf claim against cmp (cmp >= nbf).
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// If req is false, it will return true, if nbf is unset.
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func (m MapClaims) VerifyNotBefore(cmp int64, req bool) bool {
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cmpTime := time.Unix(cmp, 0)
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v, ok := m["nbf"]
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if !ok {
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return !req
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}
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switch nbf := v.(type) {
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case float64:
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if nbf == 0 {
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return verifyNbf(nil, cmpTime, req)
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}
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return verifyNbf(&newNumericDateFromSeconds(nbf).Time, cmpTime, req)
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case json.Number:
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v, _ := nbf.Float64()
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return verifyNbf(&newNumericDateFromSeconds(v).Time, cmpTime, req)
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}
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return false
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}
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// VerifyIssuer compares the iss claim against cmp.
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// If required is false, this method will return true if the value matches or is unset
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func (m MapClaims) VerifyIssuer(cmp string, req bool) bool {
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iss, _ := m["iss"].(string)
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return verifyIss(iss, cmp, req)
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}
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// Valid validates time based claims "exp, iat, nbf".
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// There is no accounting for clock skew.
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// As well, if any of the above claims are not in the token, it will still
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// be considered a valid claim.
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func (m MapClaims) Valid() error {
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vErr := new(ValidationError)
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now := TimeFunc().Unix()
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if !m.VerifyExpiresAt(now, false) {
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// TODO(oxisto): this should be replaced with ErrTokenExpired
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vErr.Inner = errors.New("Token is expired")
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vErr.Errors |= ValidationErrorExpired
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}
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if !m.VerifyIssuedAt(now, false) {
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// TODO(oxisto): this should be replaced with ErrTokenUsedBeforeIssued
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vErr.Inner = errors.New("Token used before issued")
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vErr.Errors |= ValidationErrorIssuedAt
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}
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if !m.VerifyNotBefore(now, false) {
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// TODO(oxisto): this should be replaced with ErrTokenNotValidYet
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vErr.Inner = errors.New("Token is not valid yet")
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vErr.Errors |= ValidationErrorNotValidYet
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}
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if vErr.valid() {
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return nil
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}
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return vErr
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}
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