forked from mirror/jwt
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
package jwt
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import (
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"encoding/json"
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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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// GetExpirationTime implements the Claims interface.
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func (m MapClaims) GetExpirationTime() *NumericDate {
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return m.ParseNumericDate("exp")
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}
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// GetNotBefore implements the Claims interface.
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func (m MapClaims) GetNotBefore() *NumericDate {
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return m.ParseNumericDate("nbf")
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}
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// GetIssuedAt implements the Claims interface.
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func (m MapClaims) GetIssuedAt() *NumericDate {
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return m.ParseNumericDate("iat")
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}
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// GetAudience implements the Claims interface.
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func (m MapClaims) GetAudience() ClaimStrings {
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return m.ParseClaimsString("aud")
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}
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// GetIssuer implements the Claims interface.
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func (m MapClaims) GetIssuer() string {
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return m.ParseString("iss")
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}
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// ParseNumericDate tries to parse a key in the map claims type as a number
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// date. This will succeed, if the underlying type is either a [float64] or a
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// [json.Number]. Otherwise, nil will be returned.
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func (m MapClaims) ParseNumericDate(key string) *NumericDate {
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v, ok := m[key]
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if !ok {
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return nil
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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 nil
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}
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return newNumericDateFromSeconds(exp)
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case json.Number:
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v, _ := exp.Float64()
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return newNumericDateFromSeconds(v)
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}
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return nil
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}
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// ParseClaimsString tries to parse a key in the map claims type as a
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// [ClaimsStrings] type, which can either be a string or an array of string.
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func (m MapClaims) ParseClaimsString(key string) ClaimStrings {
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var cs []string
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switch v := m[key].(type) {
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case string:
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cs = append(cs, v)
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case []string:
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cs = 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 nil
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}
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cs = append(cs, vs)
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}
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}
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return cs
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}
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// ParseString tries to parse a key in the map claims type as a
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// [string] type. Otherwise, an empty string is returned.
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func (m MapClaims) ParseString(key string) string {
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iss, _ := m[key].(string)
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return iss
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}
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