54 lines
1.1 KiB
Go
54 lines
1.1 KiB
Go
package main
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import (
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"errors"
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"log"
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"time"
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"github.com/dgrijalva/jwt-go"
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)
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type tokenClaim struct {
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Sponsor string `json:"sponsor_username"`
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jwt.StandardClaims
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}
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func generateToken(sponsor string) (string, error) {
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claim := tokenClaim{
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Sponsor: sponsor,
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StandardClaims: jwt.StandardClaims{
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ExpiresAt: time.Now().UTC().Unix() + 86400,
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Issuer: "GuildGate",
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},
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claim)
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signedToken, err := token.SignedString([]byte(Conf.Secret))
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if err != nil {
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return "", err
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} else {
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return signedToken, nil
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}
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}
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func validateToken(tok string) (string, error) {
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token, err := jwt.ParseWithClaims(
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tok,
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&tokenClaim{},
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func(token *jwt.Token) (interface{}, error) {
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return []byte(Conf.Secret), nil
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},
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)
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if err != nil {
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return "", err
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}
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claims, ok := token.Claims.(*tokenClaim)
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if !ok {
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return "", errors.New("Invalid token sponsor passed")
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}
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if claims.ExpiresAt < time.Now().UTC().Unix() {
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return "", errors.New("Token has expired")
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}
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log.Printf("Valid token received; sponsored by %v\n", claims.Sponsor)
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return claims.Sponsor, nil
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}
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